WO2013075447A1 - Rotary drilling rig and device controlling main hoist lowering speed therefor - Google Patents
Rotary drilling rig and device controlling main hoist lowering speed therefor Download PDFInfo
- Publication number
- WO2013075447A1 WO2013075447A1 PCT/CN2012/073823 CN2012073823W WO2013075447A1 WO 2013075447 A1 WO2013075447 A1 WO 2013075447A1 CN 2012073823 W CN2012073823 W CN 2012073823W WO 2013075447 A1 WO2013075447 A1 WO 2013075447A1
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- WIPO (PCT)
- Prior art keywords
- reversing valve
- main
- valve
- port
- lowering speed
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 21
- 238000004804 winding Methods 0.000 claims description 8
- 230000003111 delayed effect Effects 0.000 claims description 4
- 230000001939 inductive effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
- E21B19/165—Control or monitoring arrangements therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
- F15B7/001—With multiple inputs, e.g. for dual control
Definitions
- Rotary drilling rig and main hoisting speed control device thereof.
- the application is submitted to the Chinese Patent Office on November 25, 2011, and the application number is 201110379677.7.
- the invention name is "a rotary drilling rig and its main hoisting speed.” The priority of the Chinese Patent Application, the entire disclosure of which is incorporated herein by reference.
- the invention relates to the field of construction machinery, and in particular relates to a rotary drilling rig and a main hoisting and lowering speed control device thereof.
- the main winch control scheme of the rotary drilling rig is equipped with functions such as lifting, lowering and floating; when the main hoisting is lowered, a multi-stage cushioning device is adopted to avoid a sharp collision when the drill pipe is in contact with the power head, but this method still exists.
- a first object of the present invention is to provide an effective hoisting and lowering speed control device for a rotary drilling rig, comprising: a sensor, a controller, a reversing valve device; and a sensor for Real-time sensing the relative distance between the drill pipe and the power head buffer device, and transmitting a trigger signal when the relative distance is equal to the preset distance;
- the controller is configured to send the voltage signal to the reversing valve device after receiving the trigger signal;
- the oil supply port of the feedback port is connected to the negative feedback port of the main pump through the reversing valve device, and the oil supply port supplies oil to the negative feedback port of the main pump when the reversing valve device receives the voltage signal and the main hoisting is in the lowering state.
- the oil supply port is mainly hoisted and lowered to the pilot control oil port;
- the reversing valve device comprises a first electromagnetic reversing valve, the first oil port of the first electromagnetic reversing valve is connected to the main pump negative feedback port, and the first electromagnetic exchange Connect the main hoist to the second port of the valve to lower the pilot control port.
- the first electromagnetic reversing valve is a two-position two-way electromagnetic reversing valve, a two-position three-way electromagnetic reversing valve, a two-position four-way electromagnetic reversing valve or a three-position four-way electromagnetic reversing valve.
- the reversing valve device comprises: a second electromagnetic reversing valve for receiving a voltage signal, and a hydraulic control valve connected to the second electromagnetic reversing valve; the hydraulic control valve is further connected to the main valve main winding down pilot control port; The second electromagnetic reversing valve is connected when receiving the voltage signal; the main valve main winch and the lower pilot control port are connected to control the liquid control valve when the main winch is in the lower state; the oil supply port is in the second electromagnetic reversing valve and the hydraulic control When the valves are connected, the main pump negative feedback port is supplied with oil.
- the hydraulic control valve is a hydraulic control check valve, a two-position two-way hydraulic control reversing valve, a two-position three-way hydraulic control reversing valve or a two-position four-way electromagnetic reversing valve.
- the voltage signal is a delayed voltage signal.
- the senor is mounted on the carriage of the powerhead cushioning device.
- the senor is an electromagnetic proximity switch, an inductive proximity switch or an ultrasonic sensor.
- the reversing valve device respectively connects the two main pump negative feedback ports through the first shuttle valve and the second shuttle valve.
- a second object of the present invention is to provide a rotary drilling rig comprising the above various main hoisting and lowering speed control devices.
- the embodiment of the main hoisting and lowering speed control device of the rotary drilling rig of the present invention changes the main direction of the directional control device disposed on the pump control oil passage by the controller when the relative distance between the drill pipe and the power head buffer device reaches a preset distance.
- the displacement of the pump can effectively reduce the main hoisting and lowering speed when the drill pipe approaches the power head cushioning device, avoiding the violent collision between the drill pipe and the power head, reducing the operating strength of the rig to the operating man, and improving the working strength of the rig.
- FIG. 1 is a schematic view showing the structure of a first embodiment of a main hoisting and lowering speed control device for a rotary drilling rig according to the present invention
- Fig. 2 is a schematic view showing the structure of a second embodiment of a main hoisting and lowering speed control device for a rotary drilling machine according to the present invention.
- the first embodiment of the main hoisting and lowering speed control device of the rotary drilling rig of the present invention comprises: a sensor 1, a controller 3, and a reversing valve device; wherein the sensor 1 is used for detecting the drill pipe and the power head buffer in real time.
- the port (such as port A) is connected to the main pump negative feedback port 71, 73, and the second port of the two-position four-way electromagnetic reversing valve 51 (such as the P port) is connected to the main hoisting and lowering pilot control port 12, and the main hoisting is lowered.
- the pilot control port 12 serves as a fuel supply port for the main pump negative feedback ports 71, 73.
- the preset distance may be set as a relative distance between the two when the drill pipe approaches the power head buffer device.
- the two-position four-way electromagnetic reversing valve 51 can utilize other types of electromagnetic reversing valves, such as: 3 ⁇ 4 port two-position two-way electromagnetic reversing valve, two-position three-way electromagnetic reversing valve or three-position four-way electromagnetic
- the reversing valve or the like, the electromagnetic reversing valve in FIG. 1 may be referred to as a first electromagnetic reversing valve.
- the voltage signal sent by the controller 3 is a delayed voltage signal, that is, the two-position four-way electromagnetic reversing valve 51 is continuously de-energized after being powered for a period of time to ensure that the drill pipe is in soft contact with the power head buffer device.
- the four-way electromagnetic reversing valve 51 is again disconnected, and the main winding down speed is restored.
- the senor 1 is mounted on the carriage of the power head buffer device, can move up and down along the mast with the power head buffer device, and can also mount the sensor 1 through a sensor bracket (not shown); it can be understood that the sensor 1 It can also be mounted on a drill pipe.
- the sensor 1 may be an electromagnetic proximity switch, an inductive proximity switch or an ultrasonic sensor.
- the two-position four-way electromagnetic reversing valve 51 can also be connected to the main pump negative feedback port 71 and the main pump negative feedback port 73 through the first shuttle valve 75 and the second shuttle valve 77, respectively.
- the working principle of the first embodiment of the main hoisting and lowering speed control device is as follows:
- the sensor 1 detects the relative distance between the drill pipe and the power head buffer device in real time, and sends a trigger signal when the relative distance is equal to the preset distance (may be a pulse) Signal) to the controller 3, to trigger the control program in the controller 3 to operate, the controller 3 outputs a delayed voltage signal to the two-position four-way electromagnetic reversing valve 51; the two-position four-way electromagnetic reversing valve 51 is energized, the main The hoisting and lowering pilot oil passes through the two-position four-way electromagnetic reversing valve 51 to the first shuttle valve 75 and the second shuttle valve 77, and then to the main pump negative feedback port 71 and the main pump negative feedback port 73, so as to be the main pump negative The displacement of the flow control pump is reduced, so that the main hoisting motor 10 connected to the main valves 91, 93 lowers the speed of the drill pipe, thereby achieving soft contact between the drill pipe
- the second embodiment of the main hoisting and lowering speed control device of the rotary drilling machine of the present invention is different from the first embodiment shown in FIG. 1 in that the specific structure of the directional control device is different, in this embodiment.
- the reversing valve device comprises: a two-position three-way electromagnetic reversing valve 53 for receiving a voltage signal, and a two-position two-way hydraulic reversing valve 55 connected to the two-position three-way electromagnetic reversing valve 53; Pass The hydraulically controlled directional control valve 55 is also connected to the main valve main hoisting and lowering pilot control port 16; in this embodiment, the common oil supply port 14 can be used to supply oil to the main pump negative feedback ports 71, 73, and the two-position three-way electromagnetic
- the reversing valve 53 is connected when receiving the voltage signal; the main valve main winding lowering pilot control port 16 controls the two-position two-way hydraulic control reversing valve 55 to communicate when the main winding is in the lowering state; the oil supply port 14 is in
- the two-position three-way electromagnetic reversing valve 53 can also utilize other types of electromagnetic reversing valves.
- the electromagnetic reversing valve in Fig. 2 can be called the first Two electromagnetic reversing valves; two-position two-way hydraulic reversing valve 55 can also be other types of hydraulic control valves, such as hydraulic control one-way valve, two-position three-way hydraulic control reversing valve or two-position four-way electromagnetic reversing Valves, etc.
- the working principle of the second embodiment of the above-mentioned main hoisting and lowering speed control device is as follows:
- the sensor 1 detects the relative distance between the drill pipe (specifically, the drill rod damping rubber ring) and the power head buffer device, when the relative distance is equal to the preset distance
- the sensor 1 sends a signal to the controller 3, the controller 3 outputs a voltage signal to the two-position three-way electromagnetic reversing valve 53, the two-position three-way electromagnetic reversing valve 53 is energized, and the pressure oil in the oil supply port 14 can pass through two.
- the three-way electromagnetic reversing valve 53 flows to the two-position two-way hydraulic control reversing valve 55; the two-position two-way hydraulic reversing valve 55 is connected to the main valve main winch and the pilot control port 16 to ensure that the main winch is lowered In the state, the two-position two-way hydraulic control reversing valve 55 is opened, and the pressure oil flows into the main pump negative feedback port 71 through the two-position two-way hydraulic control reversing valve 55, the first shuttle valve 75 and the second shuttle valve 77, respectively.
- the main pump negative feedback port 73 reduces the displacement of the negative flow control pump as the main pump, thereby lowering the speed of the drill pipe by the main hoisting motor 10 connected to the main valves 91, 93, realizing the drill pipe and the power head. Soft contact.
- the position of the two-position three-way electromagnetic reversing valve 53 and the two-position two-way hydraulic reversing valve 55 in FIG. 2 can be interchanged, for example, the oil supply port 14 is reversible through the two-position two-way hydraulic control.
- the valve 55 is connected to the two-position three-way electromagnetic reversing valve 53, but the triggering conditions of the two are unchanged, that is, the two-position three-way electromagnetic reversing valve 53 is still controlled by the controller 3, and the two-position two-way hydraulically controlled reversing valve 55 is still It is controlled by the main valve main hoisting and lowering pilot control port 16.
- the main hoisting and lowering speed control device of the rotary drilling rig of the present invention changes the displacement of the main pump by triggering a logic valve disposed on the pump control oil passage by the controller when the relative distance between the drill pipe and the power head buffer device reaches a preset distance Therefore, when the drill pipe approaches the power head buffer device, the main winding down speed can be effectively reduced, the drill pipe and the power head can be prevented from colliding violently, the operation strength of the drilling machine on the operating hand can be reduced, and the power head of the rotary drilling machine can be improved. Service life and machine reliability.
Abstract
Disclosed is a rotary drilling rig and a device controlling the main hoist lowering speed therefor. The device controlling the main hoist lowering speed comprises: a sensor (1), a controller (3), and a reversing valve apparatus, wherein the sensor (1) is for sensing in real-time the relative distance between a drill rod and a unit head shock cushioning apparatus and when the relative distance is equal to a predetermined distance, sending a trigger signal; the controller (3) is for sending a voltage signal to the reversing valve apparatus after receiving the trigger signal; an oil supply port of main pump negative feedback ports is connected to the main pump negative feedback ports (71, 73) via the reversing valve apparatus, and when the reversing valve apparatus receives the voltage signal and the main hoist is in a lowering state, the oil supply port supplies oil to the main pump negative feedback ports (71, 73). The rotary drilling rig can control the negative feedback pressure of the main pump, altering the delivery of the main pump, and during the process of the drill rod lowering, can thereby effectively reduce the main hoist lowering speed, preventing violent collisions between the drill rod and the unit head, increasing the service life of the unit head and improving the reliability of the whole machine.
Description
一种旋挖钻机及其主卷扬下放速度控制装置 本申请要求于 2011 年 11 月 25 日提交中国专利局、 申请号为 201110379677.7、 发明名称为 "一种旋挖钻机及其主卷扬下放速度控制装 置"的中国专利申请的优先权， 其全部内容通过引用结合在本申请中。 Rotary drilling rig and main hoisting speed control device thereof. The application is submitted to the Chinese Patent Office on November 25, 2011, and the application number is 201110379677.7. The invention name is "a rotary drilling rig and its main hoisting speed." The priority of the Chinese Patent Application, the entire disclosure of which is incorporated herein by reference.
技术领域 Technical field
本发明涉及工程机械领域， 具体涉及一种旋挖钻机及其主卷扬下放速 度控制装置。 The invention relates to the field of construction machinery, and in particular relates to a rotary drilling rig and a main hoisting and lowering speed control device thereof.
背景技术 Background technique
目前旋挖钻机主卷扬控制方案都配有上提下放和浮动等功能； 在主卷 扬下放时采用多级緩沖装置避免钻杆与动力头接触时产生剧烈的碰撞， 但 是此种方式依然存在故障隐患， 容易引发漏油、 马达减速机损坏等问题， 尤其是新机手操作时， 故障发生率大幅提升。 At present, the main winch control scheme of the rotary drilling rig is equipped with functions such as lifting, lowering and floating; when the main hoisting is lowered, a multi-stage cushioning device is adopted to avoid a sharp collision when the drill pipe is in contact with the power head, but this method still exists. Hidden troubles, it is easy to cause oil leakage, motor reducer damage, etc., especially when the new machine is operated, the failure rate is greatly increased.
发明内容 Summary of the invention
为了克服现有技术的上述缺陷和不足， 本发明的第一目的在于提供一 种有效的旋挖钻机的主卷扬下放速度控制装置， 包括： 传感器、 控制器、 换向阀装置；传感器用于实时感测钻杆与动力头緩沖装置之间的相对距离， 并在相对距离等于预设距离时， 发送触发信号； 控制器用于在接收触发信 号后发送电压信号至换向阀装置； 主泵负反馈口的供油口通过换向阀装置 连接主泵负反馈口， 供油口在换向阀装置收到电压信号且主卷扬处于下放 状态时， 为主泵负反馈口供油。 In order to overcome the above-mentioned drawbacks and deficiencies of the prior art, a first object of the present invention is to provide an effective hoisting and lowering speed control device for a rotary drilling rig, comprising: a sensor, a controller, a reversing valve device; and a sensor for Real-time sensing the relative distance between the drill pipe and the power head buffer device, and transmitting a trigger signal when the relative distance is equal to the preset distance; the controller is configured to send the voltage signal to the reversing valve device after receiving the trigger signal; The oil supply port of the feedback port is connected to the negative feedback port of the main pump through the reversing valve device, and the oil supply port supplies oil to the negative feedback port of the main pump when the reversing valve device receives the voltage signal and the main hoisting is in the lowering state.
进一步地， 供油口为主卷扬下放先导控制油口； 换向阀装置包括第一 电磁换向阀， 第一电磁换向阀的第一油口连接主泵负反馈口， 第一电磁换 向阀的第二油口连接主卷扬下放先导控制油口。 Further, the oil supply port is mainly hoisted and lowered to the pilot control oil port; the reversing valve device comprises a first electromagnetic reversing valve, the first oil port of the first electromagnetic reversing valve is connected to the main pump negative feedback port, and the first electromagnetic exchange Connect the main hoist to the second port of the valve to lower the pilot control port.
进一步地， 第一电磁换向阀为二位二通电磁换向阀、 二位三通电磁换 向阀、 二位四通电磁换向阀或三位四通电磁换向阀。 Further, the first electromagnetic reversing valve is a two-position two-way electromagnetic reversing valve, a two-position three-way electromagnetic reversing valve, a two-position four-way electromagnetic reversing valve or a three-position four-way electromagnetic reversing valve.
进一步地， 换向阀装置包括： 用于接收电压信号的第二电磁换向阀、 与第二电磁换向阀连接的液控阀； 液控阀还连接主阀主卷扬下放先导控制 口； 第二电磁换向阀在收到电压信号时连通； 主阀主卷扬下放先导控制口 在主卷扬处于下放状态时控制液控阀连通； 供油口在第二电磁换向阀及液 控阀均连通时， 为主泵负反馈口供油。
进一步地， 液控阀为液控单向阀、 二位二通液控换向阀、 二位三通液 控换向阀或二位四通电磁换向阀。 Further, the reversing valve device comprises: a second electromagnetic reversing valve for receiving a voltage signal, and a hydraulic control valve connected to the second electromagnetic reversing valve; the hydraulic control valve is further connected to the main valve main winding down pilot control port; The second electromagnetic reversing valve is connected when receiving the voltage signal; the main valve main winch and the lower pilot control port are connected to control the liquid control valve when the main winch is in the lower state; the oil supply port is in the second electromagnetic reversing valve and the hydraulic control When the valves are connected, the main pump negative feedback port is supplied with oil. Further, the hydraulic control valve is a hydraulic control check valve, a two-position two-way hydraulic control reversing valve, a two-position three-way hydraulic control reversing valve or a two-position four-way electromagnetic reversing valve.
进一步地， 电压信号为延时电压信号。 Further, the voltage signal is a delayed voltage signal.
进一步地， 传感器安装在动力头緩沖装置的滑架上。 Further, the sensor is mounted on the carriage of the powerhead cushioning device.
进一步地， 传感器为电磁式接近开关、 电感式接近开关或超声波传感 器。 Further, the sensor is an electromagnetic proximity switch, an inductive proximity switch or an ultrasonic sensor.
进一步地， 换向阀装置通过第一梭阀及第二梭阀分别对应连接两个主 泵负反馈口。 Further, the reversing valve device respectively connects the two main pump negative feedback ports through the first shuttle valve and the second shuttle valve.
为了克服现有技术的上述缺陷和不足， 本发明的第二目的在于提供一 种旋挖钻机， 包括上述各种主卷扬下放速度控制装置。 In order to overcome the above-mentioned deficiencies and deficiencies of the prior art, a second object of the present invention is to provide a rotary drilling rig comprising the above various main hoisting and lowering speed control devices.
本发明旋挖钻机主卷扬下放速度控制装置实施例通过传感器在钻杆与 动力头緩沖装置的相对距离达到预设距离时， 通过控制器触发设置在泵控 制油路上的换向阀装置改变主泵的排量， 从而可以在钻杆接近动力头緩沖 装置时， 使主卷扬下放速度有效减小， 避免钻杆与动力头发生剧烈碰撞， 降低了钻机对操作机手的操作强度， 提高了旋挖钻机的动力头使用寿命和 整机可靠性。 The embodiment of the main hoisting and lowering speed control device of the rotary drilling rig of the present invention changes the main direction of the directional control device disposed on the pump control oil passage by the controller when the relative distance between the drill pipe and the power head buffer device reaches a preset distance. The displacement of the pump can effectively reduce the main hoisting and lowering speed when the drill pipe approaches the power head cushioning device, avoiding the violent collision between the drill pipe and the power head, reducing the operating strength of the rig to the operating man, and improving the working strength of the rig. Rotary drilling rig power head life and machine reliability.
附图说明 DRAWINGS
图 1为本发明旋挖钻机主卷扬下放速度控制装置第一实施例的结构示 意图； 1 is a schematic view showing the structure of a first embodiment of a main hoisting and lowering speed control device for a rotary drilling rig according to the present invention;
图 2为本发明旋挖钻机主卷扬下放速度控制装置第二实施例的结构示 意图。 Fig. 2 is a schematic view showing the structure of a second embodiment of a main hoisting and lowering speed control device for a rotary drilling machine according to the present invention.
具体实施方式 detailed description
下面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进 行清楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没 有作出创造性劳动前提下所获得的所有其它实施例， 都属于本发明保护的 范围。 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
如图 1所示， 本发明旋挖钻机主卷扬下放速度控制装置第一实施例包 括： 传感器 1、 控制器 3、 换向阀装置； 其中， 传感器 1用于实时检测钻杆 与动力头緩沖装置之间的相对距离， 并在相对距离等于预设距离时， 发送
触发信号； 控制器 3用于在接收触发信号后发送电压信号至换向阀装置； 换向阀装置包括二位四通电磁换向阀 51, 二位四通电磁换向阀 51的第一 油口 （如 A口）连接主泵负反馈口 71、 73, 二位四通电磁换向阀 51的第 二油口 （如 P口）连接主卷扬下放先导控制油口 12, 主卷扬下放先导控制 油口 12作为主泵负反馈口 71、 73的供油口。 具体操作时， 该预设距离可 以设置为钻杆接近动力头緩沖装置时二者之间的相对距离。 As shown in FIG. 1, the first embodiment of the main hoisting and lowering speed control device of the rotary drilling rig of the present invention comprises: a sensor 1, a controller 3, and a reversing valve device; wherein the sensor 1 is used for detecting the drill pipe and the power head buffer in real time. The relative distance between the devices, and when the relative distance is equal to the preset distance, send a trigger signal; the controller 3 is configured to send a voltage signal to the reversing valve device after receiving the trigger signal; the reversing valve device comprises a two-position four-way electromagnetic reversing valve 51, and the first oil of the two-position four-way electromagnetic reversing valve 51 The port (such as port A) is connected to the main pump negative feedback port 71, 73, and the second port of the two-position four-way electromagnetic reversing valve 51 (such as the P port) is connected to the main hoisting and lowering pilot control port 12, and the main hoisting is lowered. The pilot control port 12 serves as a fuel supply port for the main pump negative feedback ports 71, 73. In a specific operation, the preset distance may be set as a relative distance between the two when the drill pipe approaches the power head buffer device.
可以理解的是，二位四通电磁换向阀 51可以利用其它类型的电磁换向 阀， ：¾口二位二通电磁换向阀、 二位三通电磁换向阀或三位四通电磁换向阀 等， 图 1中的电磁换向阀可以称为第一电磁换向阀。 It can be understood that the two-position four-way electromagnetic reversing valve 51 can utilize other types of electromagnetic reversing valves, such as: 3⁄4 port two-position two-way electromagnetic reversing valve, two-position three-way electromagnetic reversing valve or three-position four-way electromagnetic The reversing valve or the like, the electromagnetic reversing valve in FIG. 1 may be referred to as a first electromagnetic reversing valve.
优选地， 控制器 3发送的电压信号为延时电压信号， 即二位四通电磁 换向阀 51持续得电一段时间后失电复位，保证钻杆与动力头緩沖装置软接 触后， 二位四通电磁换向阀 51再断开， 主卷扬下放速度恢复。 Preferably, the voltage signal sent by the controller 3 is a delayed voltage signal, that is, the two-position four-way electromagnetic reversing valve 51 is continuously de-energized after being powered for a period of time to ensure that the drill pipe is in soft contact with the power head buffer device. The four-way electromagnetic reversing valve 51 is again disconnected, and the main winding down speed is restored.
优选地， 传感器 1安装在动力头緩沖装置的滑架上， 可随动力头緩沖 装置沿桅杆上下移动， 还可以通过传感器支架（图未示）来安装传感器 1; 可以理解的是， 该传感器 1还可以安装在钻杆上。 具体操作时， 传感器 1 可以为电磁式接近开关、 电感式接近开关或超声波传感器等。 Preferably, the sensor 1 is mounted on the carriage of the power head buffer device, can move up and down along the mast with the power head buffer device, and can also mount the sensor 1 through a sensor bracket (not shown); it can be understood that the sensor 1 It can also be mounted on a drill pipe. In the specific operation, the sensor 1 may be an electromagnetic proximity switch, an inductive proximity switch or an ultrasonic sensor.
优选地， 二位四通电磁换向阀 51还可以通过第一梭阀 75及第二梭阀 77分别对应连接主泵负反馈口 71及主泵负反馈口 73。 Preferably, the two-position four-way electromagnetic reversing valve 51 can also be connected to the main pump negative feedback port 71 and the main pump negative feedback port 73 through the first shuttle valve 75 and the second shuttle valve 77, respectively.
上述主卷扬下放速度控制装置第一实施例的工作原理如下： 传感器 1 实时检测钻杆与动力头緩沖装置之间的相对距离， 在该相对距离等于预设 距离时发出触发信号 （可以为脉沖信号） 至控制器 3, 以触发控制器 3中 的控制程序运行， 控制器 3输出延时电压信号至二位四通电磁换向阀 51; 二位四通电磁换向阀 51得电， 主卷扬下放先导油经二位四通电磁换向阀 51到第一梭阀 75及第二梭阀 77, 再到主泵负反馈口 71及主泵负反馈口 73, 使作为主泵的负流量控制泵的排量降低， 从而通过与主阀 91、 93连接 的主卷扬马达 10使钻杆下降速度降低， 实现钻杆与动力头的软接触。 The working principle of the first embodiment of the main hoisting and lowering speed control device is as follows: The sensor 1 detects the relative distance between the drill pipe and the power head buffer device in real time, and sends a trigger signal when the relative distance is equal to the preset distance (may be a pulse) Signal) to the controller 3, to trigger the control program in the controller 3 to operate, the controller 3 outputs a delayed voltage signal to the two-position four-way electromagnetic reversing valve 51; the two-position four-way electromagnetic reversing valve 51 is energized, the main The hoisting and lowering pilot oil passes through the two-position four-way electromagnetic reversing valve 51 to the first shuttle valve 75 and the second shuttle valve 77, and then to the main pump negative feedback port 71 and the main pump negative feedback port 73, so as to be the main pump negative The displacement of the flow control pump is reduced, so that the main hoisting motor 10 connected to the main valves 91, 93 lowers the speed of the drill pipe, thereby achieving soft contact between the drill pipe and the power head.
如图 2所示， 本发明旋挖钻机主卷扬下放速度控制装置的第二实施例 相对于图 1所示第一实施例的区别在于换向阀装置的具体结构不同， 在本 实施例中， 该换向阀装置包括： 用于接收电压信号的二位三通电磁换向阀 53、 与二位三通电磁换向阀 53连接的二位二通液控换向阀 55; 二位二通
液控换向阀 55还连接主阀主卷扬下放先导控制口 16; 在本实施例中， 可 以利用普通的供油口 14为主泵负反馈口 71、 73供油， 二位三通电磁换向 阀 53在收到电压信号时连通； 主阀主卷扬下放先导控制口 16在主卷扬处 于下放状态时控制二位二通液控换向阀 55连通； 供油口 14在二位三通电 磁换向阀 53及二位二通液控换向阀 55均连通时， 为主泵负反馈口 71、 73 供油。 图 2中其它元件的安装方式、类型及功能与图 1中的相应元件一致， 在此不再赘述。 As shown in FIG. 2, the second embodiment of the main hoisting and lowering speed control device of the rotary drilling machine of the present invention is different from the first embodiment shown in FIG. 1 in that the specific structure of the directional control device is different, in this embodiment. The reversing valve device comprises: a two-position three-way electromagnetic reversing valve 53 for receiving a voltage signal, and a two-position two-way hydraulic reversing valve 55 connected to the two-position three-way electromagnetic reversing valve 53; Pass The hydraulically controlled directional control valve 55 is also connected to the main valve main hoisting and lowering pilot control port 16; in this embodiment, the common oil supply port 14 can be used to supply oil to the main pump negative feedback ports 71, 73, and the two-position three-way electromagnetic The reversing valve 53 is connected when receiving the voltage signal; the main valve main winding lowering pilot control port 16 controls the two-position two-way hydraulic control reversing valve 55 to communicate when the main winding is in the lowering state; the oil supply port 14 is in two positions When the three-way electromagnetic reversing valve 53 and the two-position two-way hydraulically controlled reversing valve 55 are all connected, the main pump negative feedback ports 71, 73 supply oil. The installation manners, types, and functions of the other components in FIG. 2 are the same as those in FIG. 1, and are not described herein again.
可以理解的是，与二位四通电磁换向阀 51—样，二位三通电磁换向阀 53也可以利用其它类型的电磁换向阀， 图 2中的电磁换向阀可以称为第二 电磁换向阀；二位二通液控换向阀 55也可以为其它类型的液控阀，如液控 单向阀、 二位三通液控换向阀或二位四通电磁换向阀等。 It can be understood that, like the two-position four-way electromagnetic reversing valve 51, the two-position three-way electromagnetic reversing valve 53 can also utilize other types of electromagnetic reversing valves. The electromagnetic reversing valve in Fig. 2 can be called the first Two electromagnetic reversing valves; two-position two-way hydraulic reversing valve 55 can also be other types of hydraulic control valves, such as hydraulic control one-way valve, two-position three-way hydraulic control reversing valve or two-position four-way electromagnetic reversing Valves, etc.
上述主卷扬下放速度控制装置第二实施例的工作原理如下： 传感器 1 检测钻杆（具体如钻杆减震橡胶环）与动力头緩沖装置的相对距离， 在该 相对距离等于预设距离时， 传感器 1发出信号至控制器 3 , 控制器 3输出 电压信号至二位三通电磁换向阀 53 , 二位三通电磁换向阀 53得电， 供油 口 14中的压力油可以通过二位三通电磁换向阀 53流至二位二通液控换向 阀 55; 二位二通液控换向阀 55连接主阀主卷扬下放先导控制口 16, 保证 在主卷扬处于下放状态时，二位二通液控换向阀 55打开，压力油经二位二 通液控换向阀 55、第一梭阀 75及第二梭阀 77后分别流入主泵负反馈口 71 及主泵负反馈口 73 , 使作为主泵的负流量控制泵的排量降低， 从而通过与 主阀 91、 93连接的主卷扬马达 10使钻杆下降速度降低， 实现钻杆与动力 头的软接触。 The working principle of the second embodiment of the above-mentioned main hoisting and lowering speed control device is as follows: The sensor 1 detects the relative distance between the drill pipe (specifically, the drill rod damping rubber ring) and the power head buffer device, when the relative distance is equal to the preset distance The sensor 1 sends a signal to the controller 3, the controller 3 outputs a voltage signal to the two-position three-way electromagnetic reversing valve 53, the two-position three-way electromagnetic reversing valve 53 is energized, and the pressure oil in the oil supply port 14 can pass through two. The three-way electromagnetic reversing valve 53 flows to the two-position two-way hydraulic control reversing valve 55; the two-position two-way hydraulic reversing valve 55 is connected to the main valve main winch and the pilot control port 16 to ensure that the main winch is lowered In the state, the two-position two-way hydraulic control reversing valve 55 is opened, and the pressure oil flows into the main pump negative feedback port 71 through the two-position two-way hydraulic control reversing valve 55, the first shuttle valve 75 and the second shuttle valve 77, respectively. The main pump negative feedback port 73 reduces the displacement of the negative flow control pump as the main pump, thereby lowering the speed of the drill pipe by the main hoisting motor 10 connected to the main valves 91, 93, realizing the drill pipe and the power head. Soft contact.
本领域技术人员可以理解，图 2中二位三通电磁换向阀 53与二位二通 液控换向阀 55的位置可互换， 如供油口 14通过二位二通液控换向阀 55 连接二位三通电磁换向阀 53, 但二者的触发条件不变， 即二位三通电磁换 向阀 53仍由控制器 3控制， 二位二通液控换向阀 55仍由主阀主卷扬下放 先导控制口 16控制。图 1及图 2分别解释说明了换向阀装置采用两种不同 的结构时，主泵负反馈口 71、 73的供油口通过换向阀装置连接主泵负反馈 口 71、 73 , 供油口在换向阀装置收到电压信号且主卷扬处于下放状态时为 主泵负反馈口 71、 73供油的过程。
本发明旋挖钻机主卷扬下放速度控制装置通过传感器在钻杆与动力头 緩沖装置的相对距离达到预设距离时， 通过控制器触发设置在泵控制油路 上的逻辑阀改变主泵的排量， 从而可以在钻杆接近动力头緩沖装置时， 使 主卷扬下放速度有效减小， 避免钻杆与动力头发生剧烈碰撞， 降低钻机对 操作机手的操作强度， 提高旋挖钻机的动力头使用寿命和整机可靠性。 It can be understood by those skilled in the art that the position of the two-position three-way electromagnetic reversing valve 53 and the two-position two-way hydraulic reversing valve 55 in FIG. 2 can be interchanged, for example, the oil supply port 14 is reversible through the two-position two-way hydraulic control. The valve 55 is connected to the two-position three-way electromagnetic reversing valve 53, but the triggering conditions of the two are unchanged, that is, the two-position three-way electromagnetic reversing valve 53 is still controlled by the controller 3, and the two-position two-way hydraulically controlled reversing valve 55 is still It is controlled by the main valve main hoisting and lowering pilot control port 16. 1 and 2 respectively explain that when the reversing valve device adopts two different structures, the oil supply ports of the main pump negative feedback ports 71, 73 are connected to the main pump negative feedback ports 71, 73 through the reversing valve device to supply oil. The process of supplying oil to the negative feedback ports 71, 73 of the main pump when the reversing valve device receives the voltage signal and the main hoisting is in the lowered state. The main hoisting and lowering speed control device of the rotary drilling rig of the present invention changes the displacement of the main pump by triggering a logic valve disposed on the pump control oil passage by the controller when the relative distance between the drill pipe and the power head buffer device reaches a preset distance Therefore, when the drill pipe approaches the power head buffer device, the main winding down speed can be effectively reduced, the drill pipe and the power head can be prevented from colliding violently, the operation strength of the drilling machine on the operating hand can be reduced, and the power head of the rotary drilling machine can be improved. Service life and machine reliability.
以上仅为本发明的较佳实施例而已， 并不用以限制本发明， 凡在本发 明的精神和原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在 本发明的保护范围之内。
The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and scope of the present invention, should be included in the scope of the present invention. within.
Claims
1、 一种旋挖钻机的主卷扬下放速度控制装置， 其特征在于， 包括： 传 感器（1 )、 控制器（3 )、 换向阀装置； 1. A main hoisting and lowering speed control device for a rotary drilling rig, comprising: a sensor (1), a controller (3), a reversing valve device;
所述传感器（ 1 )用于实时感测钻杆与动力头緩沖装置之间的相对距离， 并在所述相对距离等于预设距离时， 发送触发信号； The sensor (1) is configured to sense a relative distance between the drill pipe and the power head buffer device in real time, and send a trigger signal when the relative distance is equal to the preset distance;
所述控制器（ 3 )用于在接收所述触发信号后发送电压信号至所述换向 阀装置； The controller (3) is configured to send a voltage signal to the reversing valve device after receiving the trigger signal;
主泵负反馈口 （71、 73 ) 的供油口通过所述换向阀装置连接所述主泵 负反馈口 （71、 73 ), 所述供油口在所述换向阀装置收到所述电压信号且主 卷扬处于下放状态时， 为所述主泵负反馈口 （71、 73 )供油。 The oil supply port of the main pump negative feedback port (71, 73) is connected to the main pump negative feedback port (71, 73) through the reversing valve device, and the oil supply port receives the valve at the reversing valve device When the voltage signal is described and the main hoist is in the lowered state, the main pump negative feedback port (71, 73) is supplied with oil.
2、根据权利要求 1所述的主卷扬下放速度控制装置， 其特征在于， 所 述供油口为主卷扬下放先导控制油口 （ 12 ); 2 . The main hoisting and lowering speed control device according to claim 1 , wherein the oil supply port is a main hoisting and lowering pilot control oil port ( 12 );
所述换向阀装置包括第一电磁换向阀， 所述第一电磁换向阀的第一油 口连接所述主泵负反馈口 （71、 73 ), 所述第一电磁换向阀的第二油口连接 所述主卷扬下放先导控制油口 （12 )。 The reversing valve device includes a first electromagnetic reversing valve, a first port of the first electromagnetic reversing valve is connected to the main pump negative feedback port (71, 73), and the first electromagnetic reversing valve The second port is connected to the main winch to lower the pilot control port (12).
3、根据权利要求 2所述的主卷扬下放速度控制装置， 其特征在于， 所 述第一电磁换向阀为二位二通电磁换向阀、 二位三通电磁换向阀、 二位四 通电磁换向阀 （ 51 )或三位四通电磁换向阀。 The main hoisting and lowering speed control device according to claim 2, wherein the first electromagnetic reversing valve is a two-position two-way electromagnetic reversing valve, a two-position three-way electromagnetic reversing valve, and two positions. Four-way electromagnetic reversing valve (51) or three-position four-way electromagnetic reversing valve.
4、根据权利要求 1所述的旋挖钻机主卷扬下放速度控制装置，其特征 在于， 所述换向阀装置包括： 用于接收所述电压信号的第二电磁换向阀 The main hoisting and lowering speed control device for a rotary drilling rig according to claim 1, wherein the directional valve device comprises: a second electromagnetic directional control valve for receiving the voltage signal
( 53 )、 与所述第二电磁换向阀（53 )连接的液控阀； 所述液控阀还连接主 阀主卷扬下放先导控制口 （16 ); (53), a hydraulic control valve connected to the second electromagnetic reversing valve (53); the hydraulic control valve is also connected to the main valve main winding down pilot control port (16);
所述第二电磁换向阀 （53 )在收到所述电压信号时连通； 所述主阀主 卷扬下放先导控制口（ 16 )在主卷扬处于下放状态时控制所述液控阀连通； 所述供油口 （ 14 )在所述第二电磁换向阀 （53 )及液控阀均连通时， 为所 述主泵负反馈口 （71、 73 )供油。 The second electromagnetic reversing valve (53) is connected when receiving the voltage signal; the main valve main winding down pilot control port (16) controls the communication of the hydraulic control valve when the main winding is in a lowering state The oil supply port (14) supplies oil to the main pump negative feedback port (71, 73) when the second electromagnetic reversing valve (53) and the hydraulic control valve are all connected.
5、根据权利要求 4所述的主卷扬下放速度控制装置， 其特征在于， 所 述液控阀为液控单向阀、 二位二通液控换向阀（ 55 )、二位三通液控换向阀 或二位四通电磁换向阀。 The main hoisting and lowering speed control device according to claim 4, wherein the liquid control valve is a hydraulically controlled check valve, a two-position two-way hydraulic directional control valve (55), and a two-position three-way Hydraulically controlled directional control valve or two-position four-way electromagnetic reversing valve.
6、 根据上述权利要求 1-5中任一项所述的主卷扬下放速度控制装置， 其特征在于， 所述电压信号为延时电压信号。 6. The main hoisting and lowering speed control device according to any one of claims 1 to 5, The voltage signal is a delayed voltage signal.
7、 根据上述权利要求 1-5中任一项所述的主卷扬下放速度控制装置， 其特征在于， 所述传感器（1 )安装在所述动力头緩沖装置的滑架上。 The main hoisting and lowering speed control device according to any one of claims 1 to 5, wherein the sensor (1) is mounted on a carriage of the power head cushioning device.
8、 根据上述权利要求 1-5中任一项所述的主卷扬下放速度控制装置， 其特征在于， 所述传感器（ 1 )为电磁式接近开关、 电感式接近开关或超声 波传感器。 The main hoisting and lowering speed control device according to any one of claims 1 to 5, wherein the sensor (1) is an electromagnetic proximity switch, an inductive proximity switch or an ultrasonic sensor.
9、 根据上述权利要求 1-5中任一项所述的主卷扬下放速度控制装置， 其特征在于， 所述换向阀装置通过第一梭阀 （75 )及第二梭阀 （77 )分别 对应连接两个主泵负反馈口 （71、 73 )。 The main hoisting and lowering speed control device according to any one of claims 1 to 5, wherein the directional valve device passes through the first shuttle valve (75) and the second shuttle valve (77) Connect the two main pump negative feedback ports (71, 73) respectively.
10、 一种旋挖钻机， 其特征在于， 包括上述权利要求 1-9中任一项所 述的主卷扬下放速度控制装置。 A rotary drilling rig comprising the main hoisting and lowering speed control device according to any one of claims 1-9.
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| CN201110379677.7A CN102424336B (en) | 2011-11-25 | 2011-11-25 | Rotary drilling rig and main winch placing down speed control device thereof |
| CN201110379677.7 | 2011-11-25 |
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| WO2013075447A1 true WO2013075447A1 (en) | 2013-05-30 |
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| CN101672178A (en) * | 2009-09-27 | 2010-03-17 | 内蒙古北方重型汽车股份有限公司 | Touch-down self-stopping device of drill rod of rotary drilling rig |
| CN101723274A (en) * | 2009-11-11 | 2010-06-09 | 北京市三一重机有限公司 | Main winch retracting and stretching control system of rotary drilling rig and rotary drilling rig |
| CN201802305U (en) * | 2010-07-21 | 2011-04-20 | 郑州宇通重工有限公司 | Rotary drilling rig major hoist lifting full-automatic bottom protection and main hoist wire rope pre-tightening device |
| CN102155210A (en) * | 2011-01-19 | 2011-08-17 | 徐州博汇东明机械制造有限公司 | Interlocking control system for falling, floating and depth sounding of main winch of rotary drilling rig |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201206572Y (en) * | 2008-05-30 | 2009-03-11 | 湖南奥盛特重工科技有限公司 | Bidirectional confluence control system for reciprocation of main hoist of rotary drill rig |
| CN201206571Y (en) * | 2008-05-30 | 2009-03-11 | 湖南奥盛特重工科技有限公司 | Complex control system for main hoist and power head of rotary drill rig |
| CN202415058U (en) * | 2011-11-25 | 2012-09-05 | 北京市三一重机有限公司 | Rotary drilling rig and lowering speed control device for main winch of rotary drilling rig |
-
2011
- 2011-11-25 CN CN201110379677.7A patent/CN102424336B/en not_active Expired - Fee Related
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2012
- 2012-04-11 WO PCT/CN2012/073823 patent/WO2013075447A1/en active Application Filing
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| DE4410404A1 (en) * | 1994-03-28 | 1995-10-05 | Wirth Co Kg Masch Bohr | Drill string feed-rate control for sinking large boreholes |
| US6276449B1 (en) * | 2000-03-23 | 2001-08-21 | Frederic M. Newman | Engine speed control for hoist and tongs |
| CN101295424A (en) * | 2008-06-12 | 2008-10-29 | 武汉京冶地基基础工程有限责任公司 | Alarming method and device for preventing drilling rod-dropping accident of rotary digging drill rig |
| CN101672178A (en) * | 2009-09-27 | 2010-03-17 | 内蒙古北方重型汽车股份有限公司 | Touch-down self-stopping device of drill rod of rotary drilling rig |
| CN101723274A (en) * | 2009-11-11 | 2010-06-09 | 北京市三一重机有限公司 | Main winch retracting and stretching control system of rotary drilling rig and rotary drilling rig |
| CN201802305U (en) * | 2010-07-21 | 2011-04-20 | 郑州宇通重工有限公司 | Rotary drilling rig major hoist lifting full-automatic bottom protection and main hoist wire rope pre-tightening device |
| CN102155210A (en) * | 2011-01-19 | 2011-08-17 | 徐州博汇东明机械制造有限公司 | Interlocking control system for falling, floating and depth sounding of main winch of rotary drilling rig |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795279A (en) * | 2017-12-06 | 2018-03-13 | 徐工集团工程机械有限公司 | Trepan and engineering truck |
| CN107956433A (en) * | 2017-12-21 | 2018-04-24 | 徐工集团工程机械有限公司 | Drilling machine, which is used, unloads lever apparatus and drilling machine |
| CN107956433B (en) * | 2017-12-21 | 2024-04-30 | 江苏徐工工程机械研究院有限公司 | Rod loading and unloading device for drilling machine and drilling machine |
| CN111022027A (en) * | 2019-11-28 | 2020-04-17 | 徐州徐工基础工程机械有限公司 | Rotary drilling rig and automatic control system and method for drill rod speed of rotary drilling rig |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102424336A (en) | 2012-04-25 |
| CN102424336B (en) | 2014-04-16 |
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