CN102297169A - Quick hydraulic booster cylinder - Google Patents
Quick hydraulic booster cylinder Download PDFInfo
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- CN102297169A CN102297169A CN201110282702XA CN201110282702A CN102297169A CN 102297169 A CN102297169 A CN 102297169A CN 201110282702X A CN201110282702X A CN 201110282702XA CN 201110282702 A CN201110282702 A CN 201110282702A CN 102297169 A CN102297169 A CN 102297169A
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Abstract
The invention discloses a quick hydraulic booster cylinder. A small piston and a large piston are separated by a connecting plate between the small piston and the large piston, and two independent hydraulic cylinder cavities are formed, namely a small piston cylinder cavity and a large piston cylinder cavity; the small piston is connected with the large piston after a piston rod at the front end passes through the connecting plate; a down stroke oil inlet and an up stroke oil inlet, which are used for making the small piston to drive the large piston to realize downlink and uplink actions, are formed on a small piston cylinder body, and are communicated with the small piston hydraulic cylinder cavity in which upper and lower end faces of the small piston are not interfered with each other; and the connecting plate is provided with an oil filling port connecting an oil tank and the large piston cylinder cavity, and an oil filling one-way valve is arranged in the oil filling port. The quick hydraulic booster cylinder has the characteristics of small whole volume, high boosting capacity, quick and stable switching of an air move speed and a load speed and the like; moreover, a spring is arranged, and oil automatically inflows the large piston cavity through the oil filling port through downlink negative pressure, so that the downlink speed of the large piston is improved.
Description
Technical field
The present invention relates to step-up system, specifically the fast hydraulic pressure power cylinder.
Background technique
Adopting hydraulic jack to come stamped workpieces in the prior art is more common technological means, its application is very extensive, such as being applied to be used in the molding machine of angle the occasion of stamped workpieces, but because its stamping press of hydraulic jack commonly used depends on the size of piston effective area.For the less oil cylinder of volume, stamping press is also less, often can not satisfy the needs of big stamping press, if strengthen the oil cylinder volume, not only increases cost, the difficulty that has also increased power consumption and installed and used.So the reinforcement hydraulic jack that stamping press increases greatly by the improved small volume oil cylinder of structure arises at the historic moment.
Such as a kind of disclosed boosting oil cylinder is arranged, be on the piston rod in same cylinder body two pistons to be housed, wherein be provided with spacer between small piston and the cylinder body, in fact form two oil cylinders.When back oilhole oil-feed, when preceding oilhole is fuel-displaced, act on two thrust additions on the piston, the oil cylinder stamping press is increased.Like this under the situation that does not strengthen the oil cylinder volume and play the effect of reinforcement.Though this boosting oil cylinder has reached the purpose of reinforcement, but since the front and back oilhole be separately positioned on big small piston and and its inner chamber UNICOM, its reinforcement is limited, and this structure operation is not steady, big piston only leans on the drive of small piston, there is not extra reinforcement source, whole process is too slow, the function that does not have automatic oil-feed and fuel-displaced automatically and self-return, use inconvenient, the fluency of the cyclic process of backhaul and punching press does not solve, so that we need develop a kind of reinforcement is bigger, the big piston downstream rate, null speed and loading speed are switched rapidly and are steady, self-return uses more smoothness fast hydraulic pressure power cylinder quickly and easily.
Summary of the invention
The objective of the invention is defective, the fast hydraulic pressure power cylinder is provided at the prior art existence.Have one-piece cylinder long-pending little, reinforcement big, null speed is switched characteristics such as rapid and steady with loading speed, and since added spring simultaneously by descending negative pressure oil-filled mouthful automatically the oil in the inflow big piston chamber accelerated the big piston downstream rate.
The technical solution adopted for the present invention to solve the technical problems is: fast hydraulic pressure power cylinder, its structure mainly comprise the small piston that places the small piston cylinder body and place the big piston of big piston cylinder body; The connecting plate between the two is separated by by it that to form two independent hydraulic cylinder cavities be small piston cylinder chamber and big piston cylinder chamber in the back for described small piston and big piston, described small piston cylinder chamber forms the small piston epicoele in the upper-end surface of small piston, forms the small piston cavity of resorption in the small piston lower end surface; After passing connecting plate, the piston rod of described small piston by front end link together with big piston; Be used for making small piston to drive big piston and realize that the down stroke filler opening of descending and up action and up stroke filler opening all are opened on the small piston cylinder body and are communicated to respectively not mutually in the small piston hydraulic cylinder cavity of the small piston upper-end surface of interference and lower end surface; Offer oil-filled mouthful that connects fuel tank and big piston cylinder chamber on the described connecting plate, this oil-filled mouthful of inside is provided with oil-filled one-way valve.
Described big piston cylinder is provided with spring in the chamber, and this spring one end connects connecting plate, and the other end connects big piston.
The fuel-displaced duct, centre of up/down perforation is offered at described small piston and piston rod center, the lower end in this fuel-displaced duct and joint, big piston cylinder chamber are provided with the piston rod one-way valve, and the joint, small piston cylinder chamber of the upper end in this fuel-displaced duct and small piston upper-end surface is provided with piston oil extraction one-way valve.
Also be provided with in the described connecting plate and be used for the reverse hydraulic control cylinder of opening oil-filled one-way valve, this hydraulic control cylinder and small piston cavity of resorption are communicated with.
Described down stroke filler opening and up stroke filler opening are connected to fuel tank by oil pipe, solenoid valve, oil pump.
Be provided with seal ring between described small piston and the small piston cylinder body; Be provided with seal ring between described big piston and the big piston cylinder body; Be provided with seal ring when the piston rod of described small piston front end passes connecting plate and between the connecting plate.
Fast hydraulic pressure power cylinder of the present invention is compared with prior art, has following beneficial effect:
The present invention is when solenoid valve B gets when electric: the oil-feed of down stroke filler opening, small piston is descending, big piston follows closely descending under spring action and produces negative pressure simultaneously, oil-filled one-way valve opens, fuel tank oil is sucked fast, when big piston walks to workpiece and produces operating load, small piston continues descending, oil-filled closed check valve, big piston oil pocket oil pressure transfers malleation to, because mechanism characteristics, small piston upper end area is the M multiple with the ratio of small piston rod area, the big piston work area is the N multiple with the ratio of small piston rod area, and the technology power that this moment, big piston produced is the M * N=W multiple of small piston active force.Reinforcement effect is very obvious.When solenoid valve A gets up stroke filler opening when electric, make small piston up, small piston is by moving big piston of two shoulder belts of piston rod one-way valve and pressure spring backhaul, and big piston epicoele oil converges to fuel tank with small piston epicoele oil in the lump through opened piston rod one-way valve and piston oil extraction one-way valve simultaneously.Up just wherein a kind of mode of above-mentioned small piston and big piston, can certainly utilize another kind of mode up, such as getting as solenoid valve A when electric: the oil-feed of up stroke filler opening, make small piston up, because small piston chamber and hydraulic control cylinder communicate, make the pressure in small piston cylinder chamber reach the hydraulic control cylinder and promote oil-filled mouthful one-way valve is reverse and open, small piston drives big piston and pressure spring backhaul by piston rod front end boss rigidity, and big piston epicoele oil is back to fuel tank through the reverse oil-filled mouthful of one-way valve of opening simultaneously.Have one-piece cylinder long-pending little, reinforcement big, null speed is switched characteristics such as rapid and steady with loading speed, and since added spring simultaneously by descending negative pressure oil-filled mouthful automatically the oil in the inflow big piston chamber accelerated the big piston downstream rate.
Description of drawings
Fig. 1 is the structural representation of fast hydraulic pressure power cylinder of the present invention;
Fig. 2 is the another kind of example structure schematic representation of fast hydraulic pressure power cylinder of the present invention;
Fig. 3 is the partial enlarged drawing of Fig. 2.
Among the figure: 1, fuel tank; 2, connecting plate; 3, big piston cylinder body; 4, small piston cylinder body; 5, big piston; 6, small piston; 7, down stroke filler opening; 8, up stroke filler opening; 9, oil-filled mouthful; 10, oil-filled one-way valve; 11, spring; 12, piston rod one-way valve; 13, piston oil extraction one-way valve; 14, workpiece; 15, hydraulic control cylinder.
Embodiment
Next explain below with reference to Figure of description fast hydraulic pressure power cylinder of the present invention being done.
Embodiment 1:
According to shown in Figure 1, the fast hydraulic pressure power cylinder, its structure mainly comprises small piston 6 that places small piston cylinder body 4 and the big piston 5 that places big piston cylinder body 3; The connecting plate between the two 2 is separated by by it that to form two independent hydraulic cylinder cavities be small piston cylinder chamber and big piston cylinder chamber in the back for described small piston and big piston, described small piston cylinder chamber forms the small piston epicoele in the upper-end surface of small piston, forms the small piston cavity of resorption in the small piston lower end surface; After passing connecting plate, the piston rod of described small piston by front end link together with big piston; Be used for making small piston to drive big piston and realize that the down stroke filler opening 7 of descending and up action and up stroke filler opening 8 all are opened on the small piston cylinder body and are communicated to respectively not mutually in the small piston hydraulic cylinder cavity of the small piston upper-end surface of interference and lower end surface; Offer oil-filled mouthful 9 that connects fuel tank 1 and big piston cylinder chamber on the described connecting plate, this oil-filled mouthful of inside is provided with oil-filled one-way valve 10.The big piston cylinder is provided with spring 11 in the chamber, and this spring one end connects connecting plate 2, and the other end connects big piston.The fuel-displaced duct, centre of up/down perforation is offered at described small piston and piston rod center, the lower end in this fuel-displaced duct and joint, big piston cylinder chamber are provided with piston rod one-way valve 12, and the joint, small piston cylinder chamber of the upper end in this fuel-displaced duct and small piston upper-end surface is provided with piston oil extraction one-way valve 13.Described down stroke filler opening and up stroke filler opening are connected to fuel tank by oil pipe, solenoid valve, oil pump.Be provided with seal ring between described small piston and the small piston cylinder body; Be provided with seal ring between described big piston and the big piston cylinder body; Be provided with seal ring when the piston rod of described small piston front end passes connecting plate and between the connecting plate.
When initial state, the piston rod one-way valve of small piston piston rod front end two shoulders are being carried on a shoulder pole big piston and spring are being had the decrement of a big stroke, are still in initial position.
When solenoid valve B gets when electric: the oil-feed of down stroke filler opening, small piston is descending, big piston follows closely descending under spring action and produces negative pressure simultaneously, oil-filled one-way valve opens, fuel tank oil is sucked fast, when big piston walks to workpiece and produces operating load, small piston continues descending, oil-filled closed check valve, big piston oil pocket oil pressure transfers malleation to, because mechanism characteristics, small piston upper end area is the M multiple with the ratio of small piston rod area, the big piston work area is the N multiple with the ratio of small piston rod area, and the technology power that this moment, big piston produced is the M * N=W multiple of small piston active force.
When solenoid valve A gets when electric: the oil-feed of up stroke filler opening, make small piston up, small piston is by moving big piston of two shoulder belts of piston rod one-way valve and pressure spring backhaul, and big piston epicoele oil converges to fuel tank with small piston epicoele oil in the lump through opened piston rod one-way valve and piston oil extraction one-way valve simultaneously.
Embodiment 2:
According to Fig. 2 and shown in Figure 3, the fast hydraulic pressure power cylinder, its structure mainly comprises small piston 6 that places small piston cylinder 4 bodies and the big piston 5 that places big piston cylinder body 3; The connecting plate between the two 2 is separated by by it that to form two independent hydraulic cylinder cavities be small piston cylinder chamber and big piston cylinder chamber in the back for described small piston and big piston, described small piston cylinder chamber forms the small piston epicoele in the upper-end surface of small piston, forms the small piston cavity of resorption in the small piston lower end surface; After passing connecting plate, the piston rod of described small piston by front end link together with big piston; Be used for making small piston to drive big piston and realize that the down stroke filler opening 7 of descending and up action and up stroke filler opening 8 all are opened on the small piston cylinder body and are communicated to respectively not mutually in the small piston hydraulic pressure cavity of resorption of the small piston upper-end surface of interference and lower end surface; Offer oil-filled mouthful 9 that connects fuel tank and big piston cylinder chamber on the described connecting plate, this oil-filled mouthful of inside is provided with oil-filled one-way valve 10.Described big piston cylinder is provided with spring 11 in the chamber, and this spring one end connects connecting plate, and the other end connects big piston.Also be provided with in the described connecting plate and be used for the reverse hydraulic control cylinder 15 of opening oil-filled one-way valve, this hydraulic control cylinder and small piston cylinder chamber are communicated with.Described down stroke filler opening and up stroke filler opening are connected to fuel tank by oil pipe, solenoid valve, oil pump.Be provided with seal ring between described small piston and the small piston cylinder body; Be provided with seal ring between described big piston and the big piston cylinder body; Be provided with seal ring when the piston rod of described small piston front end passes connecting plate and between the connecting plate.
When initial state, the boss of small piston piston rod front end two shoulders are being carried on a shoulder pole big piston and spring are being had the decrement of a big stroke, are still in initial position.
When solenoid valve B gets when electric: the oil-feed of down stroke filler opening, small piston is descending, big piston follows closely descending under spring action and produces negative pressure simultaneously, oil-filled one-way valve opens, fuel tank oil is sucked fast, when big piston walks to workpiece and produces operating load, small piston continues descending, oil-filled closed check valve, big piston oil pocket oil pressure transfers malleation to, because mechanism characteristics, small piston upper end area is the M multiple with the ratio of small piston rod area, the big piston work area is the N multiple with the ratio of small piston rod area, and the technology power that this moment, big piston produced is the M * N=W multiple of small piston active force.
When solenoid valve A gets when electric: the oil-feed of up stroke filler opening, make small piston up, because small piston chamber and hydraulic control cylinder communicate, make the pressure in small piston cylinder chamber reach the hydraulic control cylinder and promote oil-filled mouthful one-way valve is reverse and open, small piston drives big piston and pressure spring backhaul by piston rod front end boss rigidity, and big piston epicoele oil is back to fuel tank through the reverse oil-filled mouthful of one-way valve of opening simultaneously.
The above embodiment is a kind of of the more preferably concrete mode of execution of the present invention, and common variation that those skilled in the art carries out in the technical solution of the present invention scope and replacement all should be included in protection scope of the present invention.
Claims (6)
1. fast hydraulic pressure power cylinder, its structure mainly comprise the small piston that places the small piston cylinder body and place the big piston of big piston cylinder body; The connecting plate between the two is separated by by it that to form two independent hydraulic cylinder cavities be small piston cylinder chamber and big piston cylinder chamber in the back for described small piston and big piston, described small piston cylinder chamber forms the small piston epicoele in the upper-end surface of small piston, forms the small piston cavity of resorption in the small piston lower end surface; It is characterized in that: link together with big piston after the piston rod of described small piston by front end passes connecting plate; Be used for making small piston to drive big piston and realize that the down stroke filler opening of descending and up action and up stroke filler opening all are opened on the small piston cylinder body and are communicated to not the small piston epicoele of the small piston upper-end surface of interference and the small piston cavity of resorption of lower end surface mutually respectively; Offer oil-filled mouthful that connects fuel tank and big piston cylinder chamber on the described connecting plate, this oil-filled mouthful of inside is provided with oil-filled one-way valve.
2. fast hydraulic pressure power cylinder according to claim 1 is characterized in that: described big piston cylinder is provided with spring in the chamber, and this spring one end connects connecting plate, and the other end connects big piston.
3. fast hydraulic pressure power cylinder according to claim 1, it is characterized in that: the fuel-displaced duct, centre of up/down perforation is offered at described small piston and piston rod center, the lower end in this fuel-displaced duct and joint, big piston cylinder chamber are provided with the piston rod one-way valve, and the joint, small piston cylinder chamber of the upper end in this fuel-displaced duct and small piston upper-end surface is provided with piston oil extraction one-way valve.
4. fast hydraulic pressure power cylinder according to claim 1 is characterized in that: also be provided with in the described connecting plate and be used for the reverse hydraulic control cylinder of opening oil-filled one-way valve, this hydraulic control cylinder and small piston cavity of resorption are communicated with.
5. fast hydraulic pressure power cylinder according to claim 1 is characterized in that: described down stroke filler opening and up stroke filler opening are connected to fuel tank by oil pipe, solenoid valve, oil pump.
6. fast hydraulic pressure power cylinder according to claim 1 is characterized in that: be provided with seal ring between described small piston and the small piston cylinder body; Be provided with seal ring between described big piston and the big piston cylinder body; Be provided with seal ring when the piston rod of described small piston front end passes connecting plate and between the connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110282702XA CN102297169A (en) | 2011-09-22 | 2011-09-22 | Quick hydraulic booster cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110282702XA CN102297169A (en) | 2011-09-22 | 2011-09-22 | Quick hydraulic booster cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN102297169A true CN102297169A (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110282702XA Pending CN102297169A (en) | 2011-09-22 | 2011-09-22 | Quick hydraulic booster cylinder |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454769A (en) * | 2014-11-21 | 2015-03-25 | 关业谋 | High-speed oil pressure cylinder for mechanical punch press |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1327160A (en) * | 1971-03-05 | 1973-08-15 | Bosch Gmbh Robert | Pressure transformer for alternating-flow hydraulic apparatus |
| US5205200A (en) * | 1990-07-26 | 1993-04-27 | Wright John J | Hydraulic booster device for linear actuator |
| CN101334051A (en) * | 2008-08-05 | 2008-12-31 | 沈阳飞机工业（集团）有限公司 | Mechanical supercharger |
| CN101725580A (en) * | 2009-11-21 | 2010-06-09 | 潘孝敏 | Hydraulic pressure cylinder |
| CN202251164U (en) * | 2011-09-22 | 2012-05-30 | 田书印 | Rapid hydraulic booster cylinder |
-
2011
- 2011-09-22 CN CN201110282702XA patent/CN102297169A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1327160A (en) * | 1971-03-05 | 1973-08-15 | Bosch Gmbh Robert | Pressure transformer for alternating-flow hydraulic apparatus |
| US5205200A (en) * | 1990-07-26 | 1993-04-27 | Wright John J | Hydraulic booster device for linear actuator |
| CN101334051A (en) * | 2008-08-05 | 2008-12-31 | 沈阳飞机工业（集团）有限公司 | Mechanical supercharger |
| CN101725580A (en) * | 2009-11-21 | 2010-06-09 | 潘孝敏 | Hydraulic pressure cylinder |
| CN202251164U (en) * | 2011-09-22 | 2012-05-30 | 田书印 | Rapid hydraulic booster cylinder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454769A (en) * | 2014-11-21 | 2015-03-25 | 关业谋 | High-speed oil pressure cylinder for mechanical punch press |
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Application publication date: 20111228 |