CN103174693B - Flow regeneration hydraulic lock valve device - Google Patents
Flow regeneration hydraulic lock valve device Download PDFInfo
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- CN103174693B CN103174693B CN201310117381.7A CN201310117381A CN103174693B CN 103174693 B CN103174693 B CN 103174693B CN 201310117381 A CN201310117381 A CN 201310117381A CN 103174693 B CN103174693 B CN 103174693B
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Abstract
The invention relates to a flow regeneration hydraulic lock valve device, and belongs to hydraulic devices. The flow regeneration hydraulic lock valve device is characterized by being composed of a valve body, a valve core, a rodless cavity side screw plug, a rodless cavity side spring, a rod-existed cavity side screw plug and a rod-existed cavity side spring. An axial central through hole is formed in the valve body. An upper left oil hole, an upper right oil hole, a lower left oil hole and a lower right oil hole are correspondingly formed in the upper part and the lower part of the valve body, wherein the upper left oil hole, the upper right oil hole, the lower left oil hole and the lower right oil hole are all with inner threads and are communicated with the axial central through hole. The rodless cavity side screw plug and the rod-existed cavity side screw plug with hexagonal heads are respectively installed on the left end section and the right end section of the axial central through hole in a screwed mode. Springs are correspondingly inserted in central blind holes of the rodless cavity side screw plug and the rod-existed cavity side screw plug. The valve core is installed in a sliding mode in the axial central through hole of the valve body. The left end section and the right end section of the valve core are respectively and correspondingly installed in the springs in an inserted mode. A radial through hole is formed in the middle part of the valve core. An axial central blind hole which is communicated with the radial through hole is formed in the left part of the valve core. Therefore, not only is a cylinder enabled to fast extend out, but also a rod-existed cavity and a rodless cavity can be locked.
Description
Technical field
The invention belongs to hydraulic pressure installation, especially relate to a kind of hydraulic lock control valve unit.
Background technique
In the oil cylinder of existing engineering machinery and the cylinder efficient of other hydraulic equipments, when requiring oil cylinder fuel cut-off on the one hand, rod chamber and the rodless cavity of reply oil cylinder lock, and to prevent oil cylinder from falling, usually adopt installation hydraulic lock to solve this problem; The operator of equipment wish again when oil cylinder is overhanging on the one hand in addition, overhanging speed is fast as much as possible, to improve operating efficiency, this just needs to carry out differential connection to oil cylinder, but there be limited evidence currently of has and thisly has differential regeneration function and device with oil cylinder auto-lock function simultaneously.
Summary of the invention
The object of this invention is to provide a kind of flow regeneration hydraulic lock valve device, not only rational in infrastructure, safe and reliable, and oil cylinder can be made operationally can to stretch out fast, improve operating efficiency; When to oil cylinder fuel cut-off, can to oil cylinder two chamber: rod chamber and rodless cavity all lock.
The object of the present invention is achieved like this: a kind of flow regeneration hydraulic lock valve device, it is characterized in that: this kind of flow regeneration hydraulic lock valve device is primarily of valve body, spool, rodless cavity side plug screw, rodless cavity side spring and rod chamber side plug screw, rod chamber side spring composition, this valve body is cylindrical, this valve body offers axial central through hole, and this axial central through hole is Double step shape hole, the i.e. left end section of this axial central through hole and the equal diameters of right-hand member section and be all greater than the diameter in stage casing, left end section and the right-hand member section of this axial central through hole are tapped hole, and the stage casing of this axial central through hole is cylindrical hole, and be taper type transitional pore section respectively between the left end section of this axial central through hole and stage casing and between the right-hand member section of this axial central through hole and stage casing, simultaneously, the left part in the stage casing of axial central through hole is corresponded on the top of this valve body, the tapped upper left oilhole communicated with axial central through hole is offered at right part position respectively, upper right oilhole, and offer corresponding to the transitional pore section position of axial central through hole is corresponding respectively the tapped lower-left oilhole communicated with axial central through hole in the bottom of this valve body, bottom right oilhole,
The rodless cavity side plug screw of spinning band six square toes in the left end section of this valve body axial central through hole, the rod chamber side plug screw of spinning band six square toes in the right-hand member section of this valve body axial central through hole, this rodless cavity side plug screw is identical with the structure of rod chamber side plug screw, now be described further for rod chamber side plug screw: this rod chamber side plug screw is stepped shape plug screw, the right-hand member section of this rod chamber side plug screw is diameter six square toes larger than left section and left section is the externally threaded cylindrical section of band, central blind hole is offered left section of this rod chamber side plug screw, and offer annular elastomeric spring abutment groove at the bottom of the hole of heart blind hole hereinto, corresponding plug-in mounting rod chamber side spring make the right-hand member of this rod chamber side spring be installed in spring seat groove in heart blind hole hereinto, equally, corresponding plug-in mounting rodless cavity side spring in central blind hole on this rodless cavity side plug screw also makes the left end of this rodless cavity side spring be installed in spring seat groove,
In addition, spool is installed with being slidably matched in the stage casing of this valve body axial central through hole, this spool is that double step is cylindrical, the equal diameters of this spool left end section and right-hand member section and be all less than the diameter in stage casing, and the equal correspondence of diameter of this spool left end section and right-hand member section is slightly less than rodless cavity side spring, the inner diameter of rod chamber side spring, namely this spool left end section and right-hand member section respectively correspondence be inserted into rodless cavity side spring, in the inner diameter of rod chamber side spring, double step radial direction through hole is offered at the middle part of this spool, the i.e. upper end section of this radial direction through hole, lower end section inner diameter is all greater than the diameter in stage casing, simultaneously, the axial centre blind hole that double step radial direction through hole therewith communicates is offered at the left part of this spool.
During use, this upper left oilhole is connected the rodless cavity of oil cylinder by the hydraulic oil pipe of screw thread spinning, and this upper right oilhole is connected the rod chamber of oil cylinder by the hydraulic oil pipe of screw thread spinning, on the filler opening that this lower-left oilhole and bottom right oilhole receive respectively by hydraulic oil pipe the selector valve arranged in addition and return opening, when to enter the lower-left oilhole in valve body from the filler opening of selector valve when fluid, promote spool by hydraulic coupling and be compressed with side, bar chamber spring toward moving right, spool is moved to right and the double step radial direction through hole on spool is communicated with the upper right oilhole on valve body, the oil return of cylinder rod chamber is guided to rodless cavity by the central blind hole on spool, merge with the fluid two-way entering rodless cavity and jointly promote oil cylinder toward overhanging, oil cylinder is stretched out fast, when not having fluid to enter in valve body, spool is in neutral position under the acting in conjunction of rod chamber side spring, rodless cavity side spring, and rod chamber oil duct and the rodless cavity oil duct of oil cylinder are all blocked by spool, and then play the lock function of rod chamber and rodless cavity.
A kind of flow regeneration hydraulic lock valve device proposed by the invention, not only rational in infrastructure, safe and reliable, and oil cylinder can be made operationally to stretch out fast, improve operating efficiency; When to oil cylinder fuel cut-off, can to oil cylinder two chamber: rod chamber and rodless cavity all lock.
Now in conjunction with the accompanying drawings and embodiments a kind of flow regeneration hydraulic lock valve device proposed by the invention is described further.
Accompanying drawing explanation
Fig. 1 is the main cross-sectional schematic of a kind of flow regeneration hydraulic lock valve device proposed by the invention.
In Fig. 1: 1, rodless cavity side plug screw 2, rodless cavity side spring 3, spool 4, valve body 4-1, upper left oilhole 4-2, upper right oilhole 4-3, lower-left oilhole 4-4, bottom right oilhole 5, rod chamber side spring 6, rod chamber side plug screw.
Embodiment
As can be seen from Figure 1: a kind of flow regeneration hydraulic lock valve device, it is characterized in that: this kind of flow regeneration hydraulic lock valve device is primarily of valve body 4, spool 3, rodless cavity side plug screw 1, rodless cavity side spring 2 and rod chamber side plug screw 6, rod chamber side spring 5 forms, this valve body 4 is cylindrical, this valve body 4 offers axial central through hole, and this axial central through hole is Double step shape hole, the i.e. left end section of this axial central through hole and the equal diameters of right-hand member section and be all greater than the diameter in stage casing, left end section and the right-hand member section of this axial central through hole are tapped hole, and the stage casing of this axial central through hole is cylindrical hole, and be taper type transitional pore section respectively between the left end section of this axial central through hole and stage casing and between the right-hand member section of this axial central through hole and stage casing, simultaneously, the left part in the stage casing of axial central through hole is corresponded on the top of this valve body 4, the tapped upper left oilhole 4-1 communicated with axial central through hole is offered at right part position respectively, upper right oilhole 4-2, and offer corresponding to the transitional pore section position of axial central through hole is corresponding respectively the tapped lower-left oilhole 4-3 communicated with axial central through hole in the bottom of this valve body 4, bottom right oilhole 4-4,
The rodless cavity side plug screw 1 of spinning band six square toes in the left end section of this valve body 4 axial central through hole, the rod chamber side plug screw 6 of spinning band six square toes in the right-hand member section of this valve body 4 axial central through hole, this rodless cavity side plug screw 1 is identical with the structure of rod chamber side plug screw 6, now be described further for rod chamber side plug screw 6: this rod chamber side plug screw 6 is stepped shape plug screw, the right-hand member section of this rod chamber side plug screw 6 is diameter six square toes larger than left section and left section is the externally threaded cylindrical section of band, central blind hole is offered left section of this rod chamber side plug screw 6, and offer annular elastomeric spring abutment groove at the bottom of the hole of heart blind hole hereinto, corresponding plug-in mounting rod chamber side spring 5 make the right-hand member of this rod chamber side spring 5 be installed in spring seat groove in heart blind hole hereinto, equally, corresponding plug-in mounting rodless cavity side spring 2 in central blind hole on this rodless cavity side plug screw 1 also makes the left end of this rodless cavity side spring 2 be installed in spring seat groove,
In addition, in the stage casing of this valve body 4 axial central through hole, spool 3 is installed with being slidably matched, this spool 3 is cylindrical in double step, the left end section of this spool 3 and the equal diameters of right-hand member section and be all less than the diameter in stage casing, and the equal correspondence of diameter of the left end section of this spool 3 and right-hand member section is slightly less than rodless cavity side spring 2, the inner diameter of rod chamber side spring 5, namely the left end section of this spool 3 and right-hand member section respectively correspondence be inserted into rodless cavity side spring 2, in the inner diameter of rod chamber side spring 5, double step radial direction through hole is offered at the middle part of this spool 3, the i.e. upper end section of this radial direction through hole, lower end section inner diameter is all greater than the diameter in stage casing, simultaneously, the axial centre blind hole that double step radial direction through hole therewith communicates is offered at the left part of this spool 3.
During use, this upper left oilhole 4-1 is connected the rodless cavity of oil cylinder by the hydraulic oil pipe of screw thread spinning, and this upper right oilhole 4-2 is connected to the rod chamber of oil cylinder by the hydraulic oil pipe of screw thread spinning, on the filler opening that this lower-left oilhole 4-3 and bottom right oilhole 4-4 receives respectively by hydraulic oil pipe the selector valve arranged in addition and oil outlet, when to enter the lower-left oilhole 4-1 in valve body 4 from the filler opening of selector valve when fluid, promote spool 3 by hydraulic coupling and be compressed with side, bar chamber spring 5 toward moving right, spool 3 is moved to right and the double step radial direction through hole on spool 3 is communicated with the upper right oilhole 4-2 on valve body 4, the oil return of cylinder rod chamber is guided to rodless cavity by the central blind hole on spool 3, merge with the fluid two-way entering rodless cavity and jointly promote oil cylinder toward overhanging, oil cylinder is stretched out fast, when not having fluid to enter in valve body 4, spool 3 is in neutral position under the acting in conjunction of rod chamber side spring 5, rodless cavity side spring 2, rod chamber oil duct and the rodless cavity oil duct of oil cylinder are all blocked by spool 3, and then play the lock function of rod chamber and rodless cavity.
Claims (1)
1. a flow regeneration hydraulic lock valve device, it is characterized in that: this kind of flow regeneration hydraulic lock valve device is primarily of valve body (4), spool (3), rodless cavity side plug screw (1), rodless cavity side spring (2) and rod chamber side plug screw (6), rod chamber side spring (5) forms, this valve body (4) is cylindrical, this valve body (4) offers axial central through hole, and this axial central through hole is Double step shape hole, the left end section of this axial central through hole and the equal diameters of right-hand member section and be all greater than the diameter in stage casing, left end section and the right-hand member section of this axial central through hole are tapped hole, and the stage casing of this axial central through hole is cylindrical hole, and be taper type transitional pore section between the left end section of this axial central through hole and stage casing and between the right-hand member section of this axial central through hole and stage casing, simultaneously, the left part in the stage casing of axial central through hole is corresponded on the top of this valve body (4), tapped upper left oilhole (4-1) communicated with axial central through hole is offered at right part position respectively, upper right oilhole (4-2), and offer corresponding to the transitional pore section position of axial central through hole is corresponding respectively tapped lower-left oilhole (4-3) communicated with axial central through hole in the bottom of this valve body (4), bottom right oilhole (4-4),
Rodless cavity side plug screw (1) of spinning band six square toes in the left end section of this valve body (4) axial central through hole, rod chamber side plug screw (6) of spinning band six square toes in the right-hand member section of this valve body (4) axial central through hole, this rodless cavity side plug screw (1) is identical with the structure of rod chamber side plug screw (6), this rod chamber side plug screw (6) is stepped shape plug screw, the right-hand member section of this rod chamber side plug screw (6) is diameter six square toes larger than left section and left section is the externally threaded cylindrical section of band, central blind hole is offered left section of this rod chamber side plug screw (6), and offer annular elastomeric spring abutment groove at the bottom of the hole of heart blind hole hereinto, corresponding plug-in mounting rod chamber side spring (5) make the right-hand member of this rod chamber side spring (5) be installed in spring seat groove in heart blind hole hereinto, equally, corresponding plug-in mounting rodless cavity side spring (2) in central blind hole on this rodless cavity side plug screw (1) also makes the left end of this rodless cavity side spring (2) be installed in spring seat groove,
In addition, in the stage casing of this valve body (4) axial central through hole, spool (3) is installed with being slidably matched, this spool (3) is cylindrical in double step, the left end section of this spool (3) and the equal diameters of right-hand member section and be all less than the diameter in stage casing, and the equal correspondence of diameter of the left end section of this spool (3) and right-hand member section is slightly less than rodless cavity side spring (2), the inner diameter of rod chamber side spring (5), the left end section of this spool (3) and right-hand member section respectively correspondence are inserted into rodless cavity side spring (2), in the inner diameter of rod chamber side spring (5), double step radial direction through hole is offered at the middle part of this spool (3), the upper end section of this radial direction through hole, lower end section inner diameter is all greater than the diameter in stage casing, simultaneously, the axial centre blind hole that double step radial direction through hole therewith communicates is offered at the left part of this spool (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310117381.7A CN103174693B (en) | 2013-04-07 | 2013-04-07 | Flow regeneration hydraulic lock valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310117381.7A CN103174693B (en) | 2013-04-07 | 2013-04-07 | Flow regeneration hydraulic lock valve device |
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| Publication Number | Publication Date |
|---|---|
| CN103174693A CN103174693A (en) | 2013-06-26 |
| CN103174693B true CN103174693B (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310117381.7A Active CN103174693B (en) | 2013-04-07 | 2013-04-07 | Flow regeneration hydraulic lock valve device |
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| CN (1) | CN103174693B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020206B (en) * | 2015-06-16 | 2017-06-20 | 中国十七冶集团有限公司 | Hydraulic automatic locking device |
| CN106402068A (en) * | 2015-07-29 | 2017-02-15 | 长城汽车股份有限公司 | Hydraulic valve |
| CN106969007B (en) * | 2017-05-21 | 2018-04-13 | 新乡市新倍增自动化设备有限公司 | Explosion-proof emergent Releasing loop |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3658090A (en) * | 1970-04-27 | 1972-04-25 | Marotta Scientific Controls | Hydraulic lock valve with flow control |
| GB2197433A (en) * | 1986-11-13 | 1988-05-18 | Sterling Hydraulics Limited | Fluid control valves |
| CN2215045Y (en) * | 1994-03-23 | 1995-12-13 | 哈尔滨四海工程机械制造公司 | Double liquid control locking-valve |
| DE19919014A1 (en) * | 1999-04-27 | 2000-11-09 | Danfoss Fluid Power As | Hydraulic valve with locking and floating function has housing bore, in which switch channel optionally providable with pressure and with connecting channels on both sides is connectable by control valve with pressure source and tank |
| CN201925254U (en) * | 2011-01-18 | 2011-08-10 | 梅张龙 | Two-way hydraulic lock |
| CN202811583U (en) * | 2012-09-11 | 2013-03-20 | 周明嵩 | Bidirectional hydraulic lock without internal drainage |
| CN203214466U (en) * | 2013-04-07 | 2013-09-25 | 华菱星马汽车（集团）股份有限公司 | Flow-regeneratable hydraulic locking valve device |
-
2013
- 2013-04-07 CN CN201310117381.7A patent/CN103174693B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3658090A (en) * | 1970-04-27 | 1972-04-25 | Marotta Scientific Controls | Hydraulic lock valve with flow control |
| GB2197433A (en) * | 1986-11-13 | 1988-05-18 | Sterling Hydraulics Limited | Fluid control valves |
| CN2215045Y (en) * | 1994-03-23 | 1995-12-13 | 哈尔滨四海工程机械制造公司 | Double liquid control locking-valve |
| DE19919014A1 (en) * | 1999-04-27 | 2000-11-09 | Danfoss Fluid Power As | Hydraulic valve with locking and floating function has housing bore, in which switch channel optionally providable with pressure and with connecting channels on both sides is connectable by control valve with pressure source and tank |
| CN201925254U (en) * | 2011-01-18 | 2011-08-10 | 梅张龙 | Two-way hydraulic lock |
| CN202811583U (en) * | 2012-09-11 | 2013-03-20 | 周明嵩 | Bidirectional hydraulic lock without internal drainage |
| CN203214466U (en) * | 2013-04-07 | 2013-09-25 | 华菱星马汽车（集团）股份有限公司 | Flow-regeneratable hydraulic locking valve device |
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| CN103174693A (en) | 2013-06-26 |
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