CN202746314U - Reversing valve two-way hydraulic lock - Google Patents
Reversing valve two-way hydraulic lock Download PDFInfo
- Publication number
- CN202746314U CN202746314U CN 201220420776 CN201220420776U CN202746314U CN 202746314 U CN202746314 U CN 202746314U CN 201220420776 CN201220420776 CN 201220420776 CN 201220420776 U CN201220420776 U CN 201220420776U CN 202746314 U CN202746314 U CN 202746314U
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- CN
- China
- Prior art keywords
- valve
- hydraulic lock
- vestibule
- spool
- valve body
- 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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Abstract
The utility model discloses a reversing valve two-way hydraulic lock which comprises a valve body, a valve core hole cavity and a hydraulic lock hole cavity which both penetrate through the valve body are arranged inside the valve body, a control valve core is arranged inside the valve core hole cavity, a two-way push rod is arranged at the center of the hydraulic lock hole cavity, and two ends of the push rod are provided with one-way valves in symmetrical mode. The one-way valves are fixed inside valve seats at two ends, the center of the hydraulic lock hole cavity is communicated with the valve core hole cavity through an oil cavity a and an oil cavity b, a position of the hydraulic lock hole cavity is communicated with the valve core hole cavity through an oil cavity c and an oil cavity d, and the position of the hydraulic lock hole cavity is the joint of the one-way valves at the left end and the right end, and the push rod. The reversing valve two-way hydraulic lock is reasonable in structure, utilizes cone-shaped face seal, reduces inward discharging quantity, and is good in pressure maintaining performance and simple to assemble.
Description
Technical field
The utility model relates to the selector valve field, is specifically related to a kind of reaper selector valve bidirectional hydraulic lock.
Background technique
The reaper selector valve utilizes the change of valve element position, change connection or the off state of each hydraulic fluid port on the valve body, in order to flow direction change, realize the action control of actuator, so the quality of hydrovalve internal leakage performance will there be direct impact to characteristic and the functional reliability of hydraulic system.
In the past, hydraulic lock seal structure form mostly is the steel ball type structure of split, and namely being connected with respectively in valve seat, the valve seat at the two ends of valve body has valve pocket, and central part has the control spool in the valve body, the two ends of control spool lay respectively in the aperture of valve pocket, and the steel ball that can seal aperture is arranged in the macropore of valve pocket.The deficiency of this steel ball type structure is that steel ball is a freely rotor in the macropore of valve pocket, steel ball is the face sealing, the position very easily changes, again because steel ball is producing groove mark unavoidably with the frequent bump of the microstome of valve pocket, leak so can produce inevitably in the oil, directly affect the performance of hydrovalve.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of selector valve bidirectional hydraulic lock, rational in infrastructure, conical surface sealing, and discharge in reducing, pressure maintaining performance is good, and assembling is simple.
The utility model is achieved through the following technical solutions:
The selector valve bidirectional hydraulic lock, comprise valve body, described valve inner is provided with spool vestibule and the hydraulic lock vestibule that runs through valve body, be provided with the control spool in the spool vestibule, bidirectional push rod is equipped with at hydraulic lock vestibule center, the symmetrical one-way valve of installing in push rod two ends, and one-way valve is fixed in the valve seat at two ends, hydraulic lock vestibule center is communicated with the spool vestibule by a oil pocket, b oil pocket respectively, and two ends, left and right sides one-way valve is communicated with the spool vestibule by c oil pocket, d oil pocket respectively with the hydraulic lock vestibule of push rod delivery position.
The further improvement project of the utility model is, the spool end of described one-way valve is taper, and the afterbody linking springs is located in the valve pocket.
The utility model further improvement project is that described valve seat is connected with valve pocket by internal thread.
The utility model further improvement project is, between described valve pocket and the valve body, adopt the round section joint ring sealing between valve seat and the valve body.
The utility model further improvement project is that described hydraulic lock vestibule and spool vestibule are presented down and be arranged in parallel.
The utility model further improvement project is that described valve seat adopts with valve body and is threaded.
The utility model compared with prior art has following obvious advantage:
One, the utility model is rational in infrastructure, and when spool vestibule internal control spool processed was in meta, left and right sides one-way valve was in sealing state, and two working oil chamber leakage rates of selector valve are very little, can play abundant pressure maintaining effect; When switching oil circuit, control spool in the moving valve core vestibule, pressure oil in the fuel tank is opened a wherein side one-way valve by the spool vestibule with the oil pocket that is communicated with of hydraulic lock chamber side, flow into executive component, push rod is shifted under the effect of pressure simultaneously, open the one-way valve of opposite side, the oil that executive component flows back to is got back in the valve body, and flow back to fuel tank by return opening, good seal performance, with the interior discharge of pre-structure up under the 100bar pressure more than 15 ml/min, discharge can be controlled under the 100bar pressure in 8 ml/min in this structure.
Two, the employing of the one-way valve in the utility model end is the spool of taper, replaces original steel ball type structure, changes the conical surface sealing into by original ball face sealing, good sealing effect, and discharge in reducing, pressure maintaining performance is good.
Three, the utility model adopts one-way valve to be connected to the interior overall structure of valve seat, and assembling is simple, detachable maintaining is convenient.
Description of drawings
Fig. 1 is the utility model front section view (during meta).
Fig. 2 is the utility model front section view (when commutating left).
Fig. 3 is the utility model front section view (when commutating to the right).
Embodiment
As shown in Figure 1, the utility model comprises valve body 1, described valve body 1 inside is provided with spool vestibule 2 and the hydraulic lock vestibule 3 that runs through valve body 1, be provided with control spool 21 in the spool vestibule 2, bidirectional push rod 31 is equipped with at hydraulic lock vestibule 3 centers, the symmetrical one-way valve 32 of installing in push rod 31 two ends, one-way valve 32 is fixed in the valve seat 33 at two ends, hydraulic lock vestibule 3 centers are communicated with spool vestibule 2 by a oil pocket 34, b oil pocket 35 respectively, and two ends, left and right sides one-way valve 32 is communicated with spool vestibule 2 by c oil pocket 36, d oil pocket 37 respectively with the hydraulic lock vestibule 3 of push rod 31 delivery positions.
Spool 321 ends of described one-way valve 32 are taper, and afterbody linking springs 322 is located in the valve pocket 323.Described valve seat 33 is connected with valve pocket 323 by internal thread.Described valve seat 33 adopts with valve body 1 and is threaded.Adopt the round section joint ring sealing between described valve pocket 323 and the valve body 1, between valve seat 33 and the valve body 1.Described hydraulic lock vestibule 3 is up and down with spool vestibule 2 and be arranged in parallel.
As shown in Figure 1, when spool vestibule 2 interior control spools 21 are in meta, high pressure oil is by the off-load of e place, the one-way valve 32 of 3 interior both sides, hydraulic lock chamber remains in sealing state under the external pressure of spring 322 and hydraulic fluid port, two working oil chamber leakage rates of selector valve are very little, can play abundant pressure maintaining effect.
As shown in Figure 2, control spool 21 in the moving valve core vestibule 2 commutates left when switching oil circuit, high pressure oil is closed by the e place, pressure oil enters spool vestibule 2 by a oil pocket, opens the one-way valve 32 on right side by the c oil pocket again, enters executive component, simultaneously push rod 31 under the effect of pressure to shifting left, open the one-way valve 32 in left side, the oil that executive component flows back to valve body is got back to fuel tank by g place, the action of realization actuator.
As shown in Figure 3, control spool 21 in the moving valve core vestibule 2 commutates to the right when switching oil circuit, high pressure oil is closed by the e place, pressure oil enters spool vestibule 2 by the b oil pocket, opens the one-way valve 32 in left side by the d oil pocket again, enters executive component, simultaneously push rod 31 right shift under the effect of pressure, open the one-way valve 32 on right side, the oil that executive component flows back to valve body is got back to fuel tank by face f place, realizes the action of actuator.
Claims (6)
1. selector valve bidirectional hydraulic lock, comprise valve body (1), it is characterized in that: described valve body (1) inside is provided with spool vestibule (2) and the hydraulic lock vestibule (3) that runs through valve body (1), be provided with control spool (21) in the spool vestibule (2), bidirectional push rod (31) is equipped with at hydraulic lock vestibule (3) center, the symmetrical one-way valve (32) of installing in push rod (31) two ends, one-way valve (32) is fixed in the valve seat (33) at two ends, hydraulic lock vestibule (3) center is respectively by a oil pocket (34), b oil pocket (35) is communicated with spool vestibule (2), and two ends, left and right sides one-way valves (32) pass through respectively c oil pocket (36) with the hydraulic lock vestibule (3) of push rod (31) delivery position, d oil pocket (37) is communicated with spool vestibule (2).
2. selector valve bidirectional hydraulic lock according to claim 1, it is characterized in that: spool (321) end of described one-way valve (32) is taper, and afterbody linking springs (322) is located in the valve pocket (323).
3. selector valve bidirectional hydraulic lock according to claim 2, it is characterized in that: described valve seat (33) is connected with valve pocket (323) by internal thread.
4. selector valve bidirectional hydraulic lock according to claim 3 is characterized in that: between described valve pocket (323) and the valve body (1), adopt round section joint ring (4) sealing between valve seat (33) and the valve body (1).
5. selector valve bidirectional hydraulic lock according to claim 1 is characterized in that: described hydraulic lock vestibule (3) is up and down with spool vestibule (2) and be arranged in parallel.
6. selector valve bidirectional hydraulic lock according to claim 1 is characterized in that: described valve seat (33) adopts with valve body (1) and is threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220420776 CN202746314U (en) | 2012-08-23 | 2012-08-23 | Reversing valve two-way hydraulic lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220420776 CN202746314U (en) | 2012-08-23 | 2012-08-23 | Reversing valve two-way hydraulic lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746314U true CN202746314U (en) | 2013-02-20 |
Family
ID=47705714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220420776 Expired - Fee Related CN202746314U (en) | 2012-08-23 | 2012-08-23 | Reversing valve two-way hydraulic lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746314U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564871A (en) * | 2015-01-15 | 2015-04-29 | 武汉船用机械有限责任公司 | Low-pressure-loss overlapped type hydraulic one-way valve |
| CN106382273A (en) * | 2016-11-08 | 2017-02-08 | 合肥协力液压科技有限公司 | Reversing valve integrated with hydraulic control locks |
| CN106640810A (en) * | 2016-11-21 | 2017-05-10 | 湖南鸿辉科技有限公司 | Integral type multi-way valve and working method thereof |
| CN107218413A (en) * | 2017-07-05 | 2017-09-29 | 圣邦集团有限公司 | A kind of banked direction control valves with hydraulic pressure lock function |
-
2012
- 2012-08-23 CN CN 201220420776 patent/CN202746314U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564871A (en) * | 2015-01-15 | 2015-04-29 | 武汉船用机械有限责任公司 | Low-pressure-loss overlapped type hydraulic one-way valve |
| CN106382273A (en) * | 2016-11-08 | 2017-02-08 | 合肥协力液压科技有限公司 | Reversing valve integrated with hydraulic control locks |
| CN106640810A (en) * | 2016-11-21 | 2017-05-10 | 湖南鸿辉科技有限公司 | Integral type multi-way valve and working method thereof |
| CN107218413A (en) * | 2017-07-05 | 2017-09-29 | 圣邦集团有限公司 | A kind of banked direction control valves with hydraulic pressure lock function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20200823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |