CN104879342B - A kind of automobile back wheel hydraulic steering cylinder - Google Patents
A kind of automobile back wheel hydraulic steering cylinder Download PDFInfo
- Publication number
- CN104879342B CN104879342B CN201510334902.3A CN201510334902A CN104879342B CN 104879342 B CN104879342 B CN 104879342B CN 201510334902 A CN201510334902 A CN 201510334902A CN 104879342 B CN104879342 B CN 104879342B
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- Prior art keywords
- cylinder body
- end cap
- piston
- boss
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1433—End caps
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1438—Cylinder to end cap assemblies
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
Abstract
The present invention provides a kind of automobile back wheel hydraulic steering cylinder, and the hydraulic cylinder includes the cylinder body one and cylinder body two being coaxially disposed, and the two ends of cylinder body one and cylinder body two and is radially arranged end cap one, end cap two and intermediate end cover respectively therebetween；The axle center of cylinder body one and cylinder body two is provided with the piston rod through end cap one, intermediate end cover and end cap two；It is theed improvement is that：Piston rod between end cap one and intermediate end cover is radially arranged piston；The piston rod interval of intermediate end cover and end cap two is radially arranged boss one, and the piston rod between boss one and intermediate end cover is provided with the piston one axially floated, and the piston rod between boss one and end cap two is provided with the piston two axially floated.The automobile back wheel hydraulic steering cylinder provided with prior art ratio, the present invention, it is simple in construction, it is safe and reliable, and integrate steering, to neutralizing locking function.
Description
Technical field
It is in particular to a kind of to integrate steering, to neutralizing locking function the present invention relates to a kind of hydraulic steering cylinder
Automobile back wheel hydraulic steering cylinder.
Background technology
With the development of heavy-duty car and military vehicle, vehicle load is increasing, and vehicle bridge quantity increases therewith, vehicle body length
Degree is also lengthened therewith.Correspondingly, the problems such as tire wear is serious, radius of turn is big, control stability is poor highlights further, invention
People has found that rear-axle steering is the effective way for solving these problems through studying for a long period of time.
Electrical-control hydraulic rear-axle steering is only that the medium-sized or heavy goods vehicles for tonnage more than more than 5 tons compare with advantage；
For car, electric controlling and engine driving is then optimal, and wherein the flow of ECU control hydraulic valve and direction are just accurately controlled
The displacement of fluid-link steering cylinder piston rod, it is this that piston rod and rear-axle steering joint arm are set up by the side contacted by mechanical linkage
Formula, realizes by controlling the displacement of piston rod accurately to control trailing wheel corner.But, when trailing wheel is not involved in turning to, just need
Wanting a set of has to neutralizing the mechanism of locking function come the reliability of guarantee system.
The China of entitled " hydraulic centralizing cylinder of vehicle rear wheel steering mechanism " of Patent No. " CN2005200997774 "
Utility model patent discloses a kind of hydraulic centralizing cylinder, the steering that the piston rod of the centralizing cylinder passes through mechanical linkage and trailing wheel
Joint arm sets up contact, piston rod is maintained at centre position using the positive stop lug boss in cylinder body, so that wheel lock is in straight trip
Position, even if wheel is maintained at middle position.Steering cylinder is set up with rear-axle steering joint arm and contacted simultaneously with centralizing cylinder, and both are a kind of mutual
The relation of lock.I.e. in steering situation, cylinder working is turned to, centralizing cylinder is all turned on oil return box into and out of hydraulic fluid port, makes centralizing cylinder piston
Bar is in servo-actuated state；In contrast, when to middle cylinder working, steering cylinder is all turned on oil return box into and out of hydraulic fluid port, makes steering cylinder
Piston rod is in servo-actuated state.
This centralizing cylinder has good alignment function, but it is without mechanical locking function, is the work by left and right two chamber
Make piston rod in an intermediate position as oil pressure, it is locked to only belong to a kind of elasticity, when ground shock load is larger, this hydraulic lock
Can extremely piston rod be caused to move on a small quantity, so that the middle position that have impact on wheel is kept, the stability reduction for travelling vehicle；Other liquid
The locked left and right chamber for needing hydraulic cylinder of pressure has been always maintained at operating oil pressure, once pressure is reduced or will all centering be lost by losing
Effect.
Patent No. US5099939 (A) entitled " MULTI-AXLE STEERING SYSTEM's " " multi-wheel steering system
The U.S. patent Nos of system " disclose a kind of centralizing cylinder, and the centralizing cylinder makes trailing wheel be maintained at in-line position when being not involved in and turning to,
But also it is additionally arranged mechanism lock locking mechanism.The locked machinery controls locked pin to stretch into or exit centralizing cylinder piston by hydraulic oil
Burr connected in star, so as to realize the locked of center position and unblock.
But the centralizing cylinder and locked mechanical complicated, volume are larger, external hydraulic fluid port is more, and these shortcomings are significantly
Reduce practicality.
In addition, steering cylinder and centralizing cylinder are all respectively arranged on the knuckle arm of left and right wheel by above-mentioned two patent, two
Person is set up by drag link and contacted.Such scheme make it that complicated, difficult arrangement, the integrated level of system are very low.
The content of the invention
It is simple in construction the invention provides a kind of automobile back wheel hydraulic steering cylinder in order to solve the above problems, safely may be used
Lean on, and integrate steering, to neutralizing locking function.
The purpose of the present invention is realized using following technical proposals：
A kind of automobile back wheel hydraulic steering cylinder that the present invention is provided, the hydraulic cylinder includes the He of cylinder body 1 being coaxially disposed
Cylinder body 22, the two ends of the cylinder body 1 and cylinder body 22 and is radially arranged end cap 1, end cap 24 and intermediate end cover respectively therebetween
7；The axle center of the cylinder body 1 and cylinder body 22 is provided with the piston rod 5 through the end cap 1, intermediate end cover 7 and end cap 24；
It is theed improvement is that：Piston rod 5 between the end cap 1 and intermediate end cover 7 is radially arranged piston 6；The intermediate end cover 7
The interval of piston rod 5 between end cap 24 is radially arranged boss 1, the piston between the boss 1 and intermediate end cover 7
Bar 5 sets the piston 1 axially floated, and the piston rod 5 between the boss 1 and end cap 24 is provided with the piston axially floated
29.
The first optimal technical scheme that the present invention is provided is that the wall of cylinder body 22 sets corresponding with the boss 1
Boss 2 14, interval, which is radially arranged in pin-and-hole, the pin-and-hole, between the boss 2 14 sets locked pin 10.
The second optimal technical scheme that the present invention is provided is that it is close that the cylinder body 22, intermediate end cover 7 and piston 1 are constituted
Close the confined space composition oil pocket 3 17 that space and cylinder body 22, intermediate end cover 7 and piston 29 are constituted, the wall of cylinder body 22
Hydraulic fluid port 3 22 is set respectively at intermediate end cover 7 and end cap 24.
The 3rd optimal technical scheme that the present invention is provided is to set gap between the boss 1 and boss 2 14, institute
State the confined space composition oil pocket 4 18 that cylinder body 22, piston 1, piston 29 and locked pin 10 are constituted.
The 4th optimal technical scheme that the present invention is provided is that the locked pin 10 is both sides above "convex" shaped, its bottom
It is symmetrical arranged the spring 11 being connected with boss 2 14；The inside of locked pin 10 is provided with L-type through hole, and the outlet of the through hole is distinguished
Positioned at its bottom and side wall.
The 5th optimal technical scheme that the present invention is provided is that the locked top of pin 10 is provided with the end being connected with cylinder body 22
Lid 12, the wall of cylinder body 22 and end cap 12 are correspondingly provided with the perforate being connected with the locked through hole of pin 10 respectively, the perforate and
Hydraulic fluid port 5 24 is constituted after through hole connection.
The 6th optimal technical scheme that the present invention is provided is that it is closed that the locked pin 10, end cap 12 and cylinder body 22 are constituted
Space constitutes oil pocket 5 19, and the wall of end cap 12 is located at the locked top of pin 10 and sets hydraulic fluid port 4 23.
The 7th optimal technical scheme that the present invention is provided is that the quantity of the locked pin 10 is 4, and interval is placed equidistant
Between the boss 2 14.
The 8th optimal technical scheme that the present invention is provided is, the confined air that the cylinder body 1, end cap 1 and piston 6 are constituted
Between constitute oil pocket 2 16, the wall of cylinder body 1 sets hydraulic fluid port 2 21 at end cap 1.
The 9th optimal technical scheme that the present invention is provided is that it is closed that the cylinder body 1, intermediate end cover 7 and piston 6 are constituted
Space constitutes oil pocket 1, and the wall of cylinder body 1 sets hydraulic fluid port 1 at intermediate end cover 7.
With immediate prior art ratio, the present invention has the advantages that：
1st, the automobile back wheel hydraulic steering cylinder that the present invention is provided, integrates steering, to neutralizing locking function, overall to substitute
Back axle drag link, realizes rear-axle steering.
2nd, the automobile back wheel hydraulic steering cylinder that the present invention is provided, simple in construction, easy for installation, is easy to maintaining, has
Wide market prospects.
3rd, the automobile back wheel hydraulic steering cylinder that the present invention is provided, by the spacing position pair for realizing piston rod of boss two
In, with center position it is accurate, be easy to implement the characteristics of.
4th, the automobile back wheel hydraulic steering cylinder that the present invention is provided, increases mechanical locked work(on the basis of hydraulic centralizing function
Can, overcome when ground shock load is big, piston rod caused by the locked mode of hydroelastic system is moved on a small quantity, influence vehicle traveling
The problem of stability.
5th, the automobile back wheel hydraulic steering cylinder that the present invention is provided, effectively prevent working oil of the oil pocket three when to middle work
The reduction or forfeiture of pressure.
Brief description of the drawings
Fig. 1：The structural representation for the automobile back wheel hydraulic steering cylinder that the present invention is provided；
Fig. 2：Cross section structure schematic diagram at the I-I for the automobile back wheel hydraulic steering cylinder that the present invention is provided；
Fig. 3：The partial enlargement structural representation to neutralizing locked part for the automobile back wheel hydraulic steering cylinder that the present invention is provided
Figure；
Fig. 4：The structural representation of hydraulic steering cylinder when the automobile back wheel that the present invention is provided is turned to；
Fig. 5：The partial enlargement to neutralizing locked part of hydraulic steering cylinder when the automobile back wheel that the present invention is provided is turned to
Structural representation；
Wherein：1st, cylinder body one；2nd, cylinder body two；3rd, end cap one；4th, end cap two；5th, piston rod；6th, piston；7th, intermediate end cover；
8th, piston one；9th, piston two；10th, locked pin；11st, spring；12nd, end cap；13rd, boss one；14th, boss two；15th, oil pocket one；16、
Oil pocket two；17th, oil pocket three；18th, oil pocket four；19th, oil pocket five；20th, hydraulic fluid port one；21st, hydraulic fluid port two；22nd, hydraulic fluid port three；23rd, hydraulic fluid port four；
24th, hydraulic fluid port five.
Embodiment
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings.
The present embodiment is by taking automobile back wheel hydraulic steering cylinder as an example, as shown in Fig. 1 to 5, automobile provided in an embodiment of the present invention
Rear-axle steering hydraulic cylinder includes the cylinder body 1 and cylinder body 22 being coaxially disposed, and intermediate end cover is welded between cylinder body 1 and cylinder body 22
7, the two ends of cylinder body 1 and cylinder body 22 are connected through a screw thread end cap 1 and end cap 24 respectively.In cylinder body 1 and cylinder body 22
Axle center, which is installed, sequentially passes through the piston rod 5 of end cap 1, intermediate end cover 7 and end cap 24, positioned at end cap 1 and intermediate end cover 7 it
Between the middle part of piston rod 5 be radially arranged piston 6, the middle part of piston rod 5 interval between end cap 24 and intermediate end cover 7 is radially
Boss 1 is set, and the wall of cylinder body 22 sets to be spaced between the boss 2 14 corresponding with boss 1, boss 2 14 and is radially arranged
Locked pin 10 is set in pin-and-hole, pin-and-hole.Piston 1 is radially arranged on piston rod 5 between intermediate end cover 7 and boss 1, it is convex
Piston 29 is radially arranged on piston rod 5 between platform 1 and end cap 24.
Locked pin 10 is that both sides set the spring 11 being connected with boss 2 14 respectively above "convex" shaped, its bottom, in lock
L-type through hole is provided with dead pin 10, the outlet of through hole is respectively positioned at the bottom of locked pin 10 and side wall；The quantity of locked pin 10 is 4,
And it is spaced and is placed equidistant between boss 2 14；At the locked top of pin 10 provided with the end cap 12 being connected with cylinder body 22.
Wherein, the confined space that cylinder body 1, end cap 1 and piston 6 are constituted constitutes oil pocket 2 16, and the wall of cylinder body 1 is close to end
Hydraulic fluid port 2 21 is set at lid 1.Hydraulic oil is filled by 2 21 pairs of oil pockets 2 16 of hydraulic fluid port, the displacement to the right of piston rod 5 can be made, from
And realize trailing wheel and turn right.
Wherein, the confined space that cylinder body 1, intermediate end cover 7 and piston 6 are constituted constitutes oil pocket 1, and the wall of cylinder body 1 is close
Hydraulic fluid port 1 is set at intermediate end cover 7.Hydraulic oil is filled by one 20 pairs of oil pockets 1 of hydraulic fluid port, the position to the left of piston rod 5 can be made
Move, so as to realize that trailing wheel turns left.
Wherein, cylinder body 22, intermediate end cover 7 and piston 1 are constituted confined space and cylinder body 22, the and of intermediate end cover 7
The confined space that piston 29 is constituted constitutes oil pocket 3 17, and the wall of cylinder body 22 sets oil respectively at intermediate end cover 7 and end cap 24
Mouth 3 22.Hydraulic oil is injected to oil pocket 3 17 by hydraulic fluid port 3 22, piston 1 and piston 29 drive in the presence of hydraulic oil
Centre position from boss 1 to cylinder body 22 move, finally boss 2 14 it is spacing under, piston rod 5 is shifted onto in cylinder body 22
Between position, that is, realize the alignment function of trailing wheel.
Wherein, reserving gaps between boss 1 and boss 2 14, cylinder body 22, piston 1, piston 29 and locked pin 10
The confined space of composition constitutes oil pocket 4 18, and the wall of cylinder body 22 and end cap 12 are correspondingly provided with what is be connected with the locked through hole of pin 10 respectively
Hydraulic fluid port 5 24 is constituted after perforate, perforate and through hole connection.Hydraulic oil, the locked footpath of pin 10 are filled to oil pocket 4 18 by hydraulic fluid port 5 24
To moving up, the groove formed between boss 1 is exited, the unblock that piston rod 5 is axially moved is realized.
Wherein, the confined space that locked pin 10, end cap 12 and cylinder body 22 are constituted constitutes oil pocket 5 19, and the wall of end cap 12 is located at
The locked top of pin 10 sets hydraulic fluid port 4 23.Hydraulic oil is filled to oil pocket 5 19 by hydraulic fluid port 4 23, the locked radial direction of pin 10 is moved down, stretched
Enter into the groove formed between boss 1, realize that piston rod 5 is axially moved locked.
In addition, when oil pocket 4 18 and oil pocket 5 19 are also turned on fuel tank, locked pin 10 under the elastic force effect of spring 11,
The groove formed between boss 1 is exited, piston rod 5 is in the state for being axially moved unblock.
The specific work process for the automobile back wheel hydraulic steering cylinder that the present embodiment is provided is as follows：
When needing rear-axle steering, as shown in Fig. 4 to 5, the filling hydraulic oil of hydraulic fluid port 1, the connection of hydraulic fluid port 2 21 fuel tank (or
Person's hydraulic fluid port 1 connects fuel tank, the filling of hydraulic fluid port 2 21 hydraulic oil), hydraulic fluid port 3 22, hydraulic fluid port 4 23, hydraulic fluid port 5 24 all connect fuel tank,
Centering and locked locking function is set not to act on, piston rod 5 is moved axially under the pressure of oil pocket 1 (or oil pocket 2 16), it is real
The steering of existing trailing wheel.
When not needing rear-axle steering, as shown in Figures 1 to 3, alignment function is first carried out, locking function is performed afterwards.Hydraulic fluid port one
20 all connect fuel tank with hydraulic fluid port 2 21, and hydraulic fluid port 3 22 fills hydraulic oil, in the presence of hydraulic oil, piston 1 and the band of piston 29
Dynamic boss 1 starts the centre position movement to cylinder body 22, boss 2 14 it is spacing under, be finally maintained at piston rod 5
Middle position, completes centering.And then, control hydraulic valve fills hydraulic oil to hydraulic fluid port 4 23, and hydraulic fluid port 5 24 connects fuel tank, hydraulic oil gram
Locked pin 10 is pushed into the groove formed between boss 1 by the elastic force for taking spring 11, is completed locked.If desired unlock,
Only need to hydraulic fluid port 4 23 taking back fuel tank, hydraulic oil is filled to hydraulic fluid port 5 24, under the double action of hydraulic oil and spring 11, lock
Dead pin 10 is rapid to exit the groove formed between boss 1, completes unblock.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, institute
Category field it is to be appreciated by one skilled in the art that with reference to above-described embodiment can to the present invention embodiment modify
Or equivalent substitution, these any modifications or equivalent substitution without departing from spirit and scope of the invention are applying for pending power
Within the scope of profit is claimed.
Claims (4)
1. a kind of automobile back wheel hydraulic steering cylinder, the hydraulic cylinder includes the cylinder body one (1) and cylinder body two (2) being coaxially disposed, institute
State the two ends of cylinder body one (1) and cylinder body two (2) and be radially arranged end cap one (3), end cap two (4) and intermediate end cover respectively therebetween
(7)；The axle center of the cylinder body one (1) and cylinder body two (2), which is provided with, runs through the end cap one (3), intermediate end cover (7) and end cap two
(4) piston rod (5)；
It is characterized in that：Piston rod (5) between the end cap one (3) and intermediate end cover (7) is radially arranged piston (6)；It is described
Piston rod (5) interval between intermediate end cover (7) and end cap two (4) is radially arranged boss one (13), the boss one (13) with
Piston rod (5) between intermediate end cover (7) sets the piston one (8) axially floated, the boss one (13) and end cap two (4) it
Between piston rod (5) provided with axially float piston two (9)；
Described (2) wall of cylinder body two is set between the boss two (14) corresponding with the boss one (13), the boss two (14)
Interval, which is radially arranged in pin-and-hole, the pin-and-hole, sets locked pin (10)；
Gap, the cylinder body two (2), piston one (8), piston two (9) are set between the boss one (13) and boss two (14)
Oil pocket four (18) is constituted with the confined space that locked pin (10) is constituted；
The locked pin (10) is that both sides are symmetrical arranged the spring being connected with boss two (14) above "convex" shaped, its bottom
(11)；L-type through hole is provided with inside the locked pin (10), the outlet of the through hole is located at its bottom and side wall respectively；
Provided with the end cap (12) being connected with cylinder body two (2), described (2) wall of cylinder body two and end cap (12) at the top of the locked pin (10)
The perforate being connected with locked pin (10) through hole is correspondingly provided with respectively, and hydraulic fluid port five is constituted after the perforate and through hole connection
(24)；
The confined space of the locked pin (10), end cap (12) and cylinder body two (2) composition constitutes oil pocket five (19), the end cap
(12) wall, which is located above locked pin (10), sets hydraulic fluid port four (23)；
The quantity of the locked pin (10) is 4, and interval is placed equidistant between the boss two (14).
2. automobile back wheel hydraulic steering cylinder as claimed in claim 1, it is characterised in that the cylinder body two (2), intermediate end cover
(7) and piston one (8) composition the confined air that constitutes of confined space and cylinder body two (2), intermediate end cover (7) and piston two (9)
Between constitute oil pocket three (17), described (2) wall of cylinder body two sets hydraulic fluid port three respectively close to intermediate end cover (7) and end cap two (4) place
(22)。
3. automobile back wheel hydraulic steering cylinder as claimed in claim 1, it is characterised in that the cylinder body one (1), end cap one (3)
Oil pocket two (16) is constituted with the confined space that piston (6) is constituted, described (1) wall of cylinder body one sets hydraulic fluid port close to end cap one (3) place
Two (21).
4. automobile back wheel hydraulic steering cylinder as claimed in claim 1, it is characterised in that the cylinder body one (1), intermediate end cover
(7) and piston (6) composition confined space constitute oil pocket one (15), described (1) wall of cylinder body one close to intermediate end cover (7) place set
Hydraulic fluid port one (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510334902.3A CN104879342B (en) | 2015-06-16 | 2015-06-16 | A kind of automobile back wheel hydraulic steering cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510334902.3A CN104879342B (en) | 2015-06-16 | 2015-06-16 | A kind of automobile back wheel hydraulic steering cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN104879342A CN104879342A (en) | 2015-09-02 |
| CN104879342B true CN104879342B (en) | 2017-09-01 |
Family
ID=53946973
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510334902.3A Expired - Fee Related CN104879342B (en) | 2015-06-16 | 2015-06-16 | A kind of automobile back wheel hydraulic steering cylinder |
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| Country | Link |
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| CN (1) | CN104879342B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105292241A (en) * | 2015-11-20 | 2016-02-03 | 湖北汽车工业学院 | Automobile rear wheel steering hydraulic alignment cylinder and use method thereof |
| CN112483505B (en) * | 2020-11-27 | 2022-11-11 | 山东艾泰克环保科技股份有限公司 | Dustproof steering oil cylinder |
| CN114475773B (en) * | 2022-04-15 | 2022-07-01 | 太重集团榆次液压工业(济南)有限公司 | Automatic steering power-assisted centering device for vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4884647A (en) * | 1983-11-21 | 1989-12-05 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Rear wheel steering apparatus |
| US5099939A (en) * | 1988-02-04 | 1992-03-31 | Zahnradfabrik Friedrichshafen, Ag | Multi-axle steering system |
| CN1048218C (en) * | 1994-01-28 | 2000-01-12 | 罗尔工业公司 | Rear steering axle directional control linkage for road vehicles |
| CN2866285Y (en) * | 2005-12-31 | 2007-02-07 | 中国三江航天工业集团公司 | Hydraulic centralizing cylinder of vehicle rear wheel steering mechanism |
| CN101660551A (en) * | 2009-09-25 | 2010-03-03 | 中国北方车辆研究所 | Oil gas suspension hydraulic locking device |
| CN201560997U (en) * | 2009-11-03 | 2010-08-25 | 中船重工中南装备有限责任公司 | Steering locked oil cylinder |
| CN202360504U (en) * | 2011-11-30 | 2012-08-01 | 宁波亚德客自动化工业有限公司 | Self-locking type cylinder |
| CN103899595A (en) * | 2014-03-28 | 2014-07-02 | 哈尔滨工程大学 | Optional-position lockable hydraulic cylinder |
| CN104454780A (en) * | 2014-10-23 | 2015-03-25 | 长沙中联重科环卫机械有限公司 | Oil cylinder with mechanical locking function and hydraulic system |
-
2015
- 2015-06-16 CN CN201510334902.3A patent/CN104879342B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4884647A (en) * | 1983-11-21 | 1989-12-05 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Rear wheel steering apparatus |
| US5099939A (en) * | 1988-02-04 | 1992-03-31 | Zahnradfabrik Friedrichshafen, Ag | Multi-axle steering system |
| CN1048218C (en) * | 1994-01-28 | 2000-01-12 | 罗尔工业公司 | Rear steering axle directional control linkage for road vehicles |
| CN2866285Y (en) * | 2005-12-31 | 2007-02-07 | 中国三江航天工业集团公司 | Hydraulic centralizing cylinder of vehicle rear wheel steering mechanism |
| CN101660551A (en) * | 2009-09-25 | 2010-03-03 | 中国北方车辆研究所 | Oil gas suspension hydraulic locking device |
| CN201560997U (en) * | 2009-11-03 | 2010-08-25 | 中船重工中南装备有限责任公司 | Steering locked oil cylinder |
| CN202360504U (en) * | 2011-11-30 | 2012-08-01 | 宁波亚德客自动化工业有限公司 | Self-locking type cylinder |
| CN103899595A (en) * | 2014-03-28 | 2014-07-02 | 哈尔滨工程大学 | Optional-position lockable hydraulic cylinder |
| CN104454780A (en) * | 2014-10-23 | 2015-03-25 | 长沙中联重科环卫机械有限公司 | Oil cylinder with mechanical locking function and hydraulic system |
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| Publication number | Publication date |
|---|---|
| CN104879342A (en) | 2015-09-02 |
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