CN2869487Y - Feedback fluid-controlled automatic pressure regulating valve - Google Patents
Feedback fluid-controlled automatic pressure regulating valve Download PDFInfo
- Publication number
- CN2869487Y CN2869487Y CN 200520010248 CN200520010248U CN2869487Y CN 2869487 Y CN2869487 Y CN 2869487Y CN 200520010248 CN200520010248 CN 200520010248 CN 200520010248 U CN200520010248 U CN 200520010248U CN 2869487 Y CN2869487 Y CN 2869487Y
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- China
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- valve
- oil
- cone
- action cylinder
- push action
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- Expired - Fee Related
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Abstract
The utility model discloses a feedback hydraulic control automatic pressure regulator valve, the control valve comprises valve body, internal push action cylinder, conical valve, one-way valve and pressure regulation plug screw, the oil inlet A, oil return B and oil outlet C are arranged on valve body, the oil inlet A is connected with cone valve through oil conduit and pass through cone valve to connect the start opening of one-way valve; the another end of one-way valve is connected separately with oil outlet C and right end of push action cylinder through oil conduit, oil return opening B is connected with start-stop opening of cone valve through oil conduit, the pushing piston of push action cylinder is connected with sealing cone pass through the oil conduit; the plug screw of pressure regulation is connected with another end of cone valve. The advantageous result of this utility model is with simple hydraulic system structure of vehicles, low costs and high performance.
Description
Technical field
The utility model relates to a kind of pressure regulator, especially relates to a kind of reaction type hydraulic control automatic pressure controller.
Background technique
When some hydraulic systems on the vehicle (as electrichydraulic control formula automatic speed changer for machine) directly adopt the engine-driving oil pump to produce oil pressure, because the rotation speed change scope of motor operation is bigger, and fuel-displaced flow of oil pump and pressure are also changed in the scope of a broad.Be constant pressure, the general way that adopts is to add one again to unload the control of pressure regulating system realization of magnet valve formation to pressure of disconnecting on the basis of relief valve.Like this, make the system architecture complexity, need, and also need other plus-pressure sensor and interlock circuit realization electrichydraulic control with two hydraulic element.
Summary of the invention
The utility model provides a reaction type hydraulic control automatic pressure modulating valve simple in structure to replace the pressure regulating system of above-mentioned complexity, regardless of engine running speed, it is to be greatly little that oil pump is exported oily flow, the utility model all can guarantee with pressure control near setting value more among a small circle in.
The technological scheme that the utility model adopted is: a kind of reaction type hydraulic control automatic pressure controller, it is characterized in that: this regulator comprises valve body and inner push action cylinder, cone valve, one-way valve and pressure adjusting plug screw thereof, is provided with filler opening a, return opening b and oil outlet c on valve body; Filler opening a is communicated with cone valve by oil duct, and passes the keying mouth that cone valve is connected to one-way valve; The other end of one-way valve is communicated with the right-hand member of oil outlet c and push action cylinder respectively by oil duct, and return opening b is connected with the keying mouth of cone valve by oil duct, and the thrust piston of thrust piston cylinder passes this oil duct and is connected with the seal cones of cone valve; Pressure is regulated plug screw and is connected with the other end of cone valve.
Comprise spool and seal cones in the described cone valve, be connected to recoil press spring and guide ring, be with seal ring on the guide ring at valve core upper sleeve; Pressure is regulated plug screw, guide ring, recoil press spring and seal cones and is connected successively.Comprise thrust piston in the described push action cylinder and be positioned at its right stop screw,, be with seal ring on the thrust piston the spacing left end of thrust piston at the oil duct that is communicated with one-way valve.Comprise in the described one-way valve that sealed steel ball, spring and snap ring also are connected successively.At oil outlet C place a joint is set.
The beneficial effects of the utility model are can make the hydraulic system structure of vehicle simple, cost reduction, performance raising.
Description of drawings
Accompanying drawing is the sectional view of structure erection drawing of the present utility model.
Embodiment
Referring to accompanying drawing, a kind of reaction type hydraulic control automatic pressure controller is characterized in that: this regulator comprises valve body 1 and inner push action cylinder 2, cone valve 3, one-way valve 4 and pressure adjusting plug screw 5 thereof, is provided with filler opening a, return opening b and oil outlet c on valve body 1; Filler opening a is communicated with cone valve 3 by oil duct, and passes the keying mouth that cone valve 3 is connected to one-way valve 4; The other end of one-way valve 4 is communicated with the right-hand member of oil outlet c and push action cylinder 2 respectively by oil duct, and return opening b is connected with the keying mouth of cone valve 3 by oil duct, and the thrust piston 2-1 of push action cylinder 2 passes this oil duct and is connected with the seal cones 3-2 of cone valve 3; Pressure is regulated plug screw 5 and is connected with the other end of cone valve 3.
Comprise spool 3-1 and seal cones 3-2 in the described cone valve 3, on spool 3-1, be socketed with recoil press spring 3-3 and guide ring 3-4, be with seal ring 3-5 on the guide ring 3-4; Pressure is regulated plug screw 5, guide ring 3-4, recoil press spring 3-3 and seal cones 3-2 and is connected successively.
Comprise thrust piston 2-1 in the described push action cylinder 2 and be positioned at its right stop screw 2-2,, be with seal ring 2-3 on the thrust piston 2-1 the spacing left end of thrust piston 2-1 at the oil duct that is communicated with one-way valve 4.
Comprise in the described one-way valve 4 that sealed steel ball 4-1, spring 4-2 also are connected successively with snap ring 4-3.
During use, at first rotary pressure is regulated plug screw 5 and is set up preset pressure value, after pressure oil enters modulating valve by filler opening a, push sealed steel ball 4-1 open through oil channel, behind one-way valve 4, enter the hydraulic system pipeline, simultaneously by oil outlet c, pressure oil feeds back in the cylinder body of thrust piston 2-1 right-hand member by horizontal oil duct, act on the thrust piston 2-1, produce a thrust left, thrust piston 2-1 is withstood on the seal cones 3-2.When the oil pressure in the system was lower than setting value, the thrust of thrust piston 2-1 was not enough to back down cone valve 3, and oil pressure can not reduce.When the pressure of the oil outlet C of system is higher than setting value, the pressure that acts on thrust piston 2-1 is enough big, it is moved to left overcome recoil press spring 3-3, push cone valve 3 open, enter the sealed mouth of the oil of filler opening a, be discharged into return opening b, pressure is reduced by the cone valve 3 of unlatching, get back near the setting value, thereby make oil pressure constant.
Be connected with hydraulic system for convenient, supportingly at oil outlet C place be provided with a joint 6.
Claims (5)
1, a kind of reaction type hydraulic control automatic pressure modulating valve, it is characterized in that: this modulating valve comprises valve body (1) and inner push action cylinder (2), cone valve (3), one-way valve (4) and pressure adjusting plug screw (5) thereof, is provided with filler opening a, return opening b and oil outlet c on valve body (1); Filler opening a is communicated with cone valve (3) by oil duct, and passes the keying mouth that cone valve (3) is connected to one-way valve (4); The other end of one-way valve (4) is communicated with the right-hand member of oil outlet c and push action cylinder (2) respectively by oil duct, return opening b is connected by the keying mouth of oil duct with cone valve (3), and the thrust piston (2-1) of push action cylinder (2) passes this oil duct and is connected with the seal cones (3-2) of cone valve (3); Pressure is regulated plug screw (5) and is connected with the other end of cone valve (3).
2, reaction type hydraulic control automatic pressure modulating valve according to claim 1, it is characterized in that: comprise spool (3-1) and seal cones (3-2) in the described cone valve (3), on spool (3-1), be socketed with recoil press spring (3-3) and guide ring (3-4), be with seal ring (3-5) on the guide ring (3-4); Pressure is regulated plug screw (5), guide ring (3-4), recoil press spring (3-3) and seal cones (3-2) and is connected successively.
3, reaction type hydraulic control automatic pressure modulating valve according to claim 1, it is characterized in that: comprise thrust piston (2-1) in the described push action cylinder (2) and be positioned at its right stop screw (2-2), with the spacing left end of thrust piston (2-1), be with seal ring (2-3) on the thrust piston (2-1) at the oil duct that is communicated with one-way valve (4).
4, reaction type hydraulic control automatic pressure modulating valve according to claim 1 is characterized in that: comprise in the described one-way valve (4) that sealed steel ball (4-1), spring (4-2) and snap ring (4-3) also are connected successively.
5, reaction type hydraulic control automatic pressure modulating valve according to claim 1 is characterized in that: at oil outlet C place a joint (6) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010248 CN2869487Y (en) | 2005-11-03 | 2005-11-03 | Feedback fluid-controlled automatic pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010248 CN2869487Y (en) | 2005-11-03 | 2005-11-03 | Feedback fluid-controlled automatic pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2869487Y true CN2869487Y (en) | 2007-02-14 |
Family
ID=37724423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520010248 Expired - Fee Related CN2869487Y (en) | 2005-11-03 | 2005-11-03 | Feedback fluid-controlled automatic pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2869487Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307433A (en) * | 2013-06-28 | 2013-09-18 | 贵州航天精工制造有限公司 | Thread screwing-in type cross groove lubrication joint assembly |
| CN106838413A (en) * | 2017-02-23 | 2017-06-13 | 桂林市华力重工机械有限责任公司 | A kind of confession oil return and the multiple directional control valve deposited |
| CN112412793A (en) * | 2019-08-23 | 2021-02-26 | 广东美芝制冷设备有限公司 | Compressor and refrigeration cycle device |
-
2005
- 2005-11-03 CN CN 200520010248 patent/CN2869487Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307433A (en) * | 2013-06-28 | 2013-09-18 | 贵州航天精工制造有限公司 | Thread screwing-in type cross groove lubrication joint assembly |
| CN106838413A (en) * | 2017-02-23 | 2017-06-13 | 桂林市华力重工机械有限责任公司 | A kind of confession oil return and the multiple directional control valve deposited |
| CN112412793A (en) * | 2019-08-23 | 2021-02-26 | 广东美芝制冷设备有限公司 | Compressor and refrigeration cycle device |
| CN112412793B (en) * | 2019-08-23 | 2022-08-23 | 广东美芝制冷设备有限公司 | Compressor and refrigeration cycle device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |