CN201851716U - Reducing valve - Google Patents
Reducing valve Download PDFInfo
- Publication number
- CN201851716U CN201851716U CN2010205979773U CN201020597977U CN201851716U CN 201851716 U CN201851716 U CN 201851716U CN 2010205979773 U CN2010205979773 U CN 2010205979773U CN 201020597977 U CN201020597977 U CN 201020597977U CN 201851716 U CN201851716 U CN 201851716U
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- Prior art keywords
- valve
- cavity
- pilot
- hole
- oil
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- Expired - Fee Related
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Abstract
The utility model discloses a reducing valve comprising a pilot valve; the pilot valve comprises a valve body, a conical valve core and a pressure regulating device, wherein the valve body is provided with a valve cavity. The reducing valve also comprises a main sliding valve comprising a valve seat connected with the pilot valve, a cavity, in which one valve core is matched in a sliding manner, is arranged in the valve seat, the valve core is connected with the side wall of the valve seat through an elastic part and provided with an axial through hole and a radial damping hole communicated with the axial through hole, and a groove is arranged in the cavity; and an oil inlet opening and an oil return opening which are respectively communicated with the cavity are also arranged on the valve seat which are also provided with an oil transfer hole communicated with the valve cavity of the pilot valve, and the valve body of the pilot valve is provided with an oil drainage hole communicated with the valve cavity on the valve body. The reducing valve not only has good pressure stabilizing performance, but also can play the role of reducing the pressure.
Description
Technical field
The utility model relates to hydraulic control valve, is specifically related to a kind of reduction valve.
Background technique
Existing relief valve adopts the relief valve of direct-acting type mostly, and the working method of this relief valve is: when the oil liquid pressure that inserts from system when filler opening was not high, the cone valve heart was pressed on the valve seat by spring, and valve port is closed.When the import oil pressure is elevated to the energy against the force of the spring, just push cone valve open, valve port is opened, fluid is just flowed into by filler opening, flows back to fuel tank from return opening again, and input pressure also just can not continue to raise.When passing through the changes in flow rate of relief valve, valve port opening is that amount of spring compression also changes thereupon.The major defect of this direct-acting overflow valve is: spring needs bigger rigidity, and when the spillway discharge variation caused that amount of spring compression changes, the variation in pressure of filler opening was big, so its voltage regulation performance is relatively poor.
Summary of the invention
At above-mentioned technical problem, the purpose of this utility model provides the reduction valve that a kind of voltage regulation performance is good and can play decompression.
The technological scheme that realizes above-mentioned purpose is as follows:
Reduction valve, comprise pilot valve, this pilot valve comprises valve body, the cone valve heart and regulator, valve body is provided with valve pocket, also comprise a main slide valve, this main slide valve comprises the valve seat that is connected with pilot valve, a cavity is set in this valve seat, the valve core that is slidingly matched in the cavity, valve core is connected with the valve seat sidewall by elastic member, this valve core is provided with axial hole and damping hole radially, axial hole and damping hole are interconnected, and are provided with groove in the described cavity, also are provided with the filler opening and the return opening that are communicated with cavity respectively on the valve seat, valve seat is provided with the oil transportation hole that is communicated with the valve pocket of pilot valve, and the valve body of described pilot valve is provided with the draining hole that is communicated with its valve pocket.
Described regulator comprises pressure regulating screw and spring, and this pressure regulating screw one end is connected with spring, and the other end of pressure regulating screw is connected with valve body.
Described elastic member is a spring.
Adopted such scheme, the utility model utilizes the spring force balance of oil outlet oil pressure and regulator, and direct-acting overflow valve then utilizes oil pressure and its spring force balance of filler opening; Of the present utility model all have pressure into and out of hydraulic fluid port, so the draining of valve pocket need take back fuel tank from the outside separately, and the draining of direct-acting overflow valve can pass through along inside through return opening head piece fuel tank; During off working state, valve port of the present utility model is being opened, and direct-acting overflow valve is closed.Decompression and principle of stabilized voltage explain in embodiment.
Description of drawings
Fig. 1 is the structural representation in the utility model;
In the accompanying drawing, 1 is valve body, and 2 is the cone valve heart, and 3 is valve pocket, and 4 is pressure regulating screw, and 5 is spring, and 6 is valve seat, and 7 is valve core, and 8 is elastic member, and 9 is axial hole, and 10 is damping hole, and 11 is filler opening, and 12 is return opening, and 13 are the oil transportation hole, and 14 is the draining hole.
Embodiment
With reference to Fig. 1, reduction valve of the present utility model.Pilot valve comprises valve body 1, the cone valve heart 2 and regulator, and valve body is provided with valve pocket 3, and valve pocket comprises first oil pocket, second oil pocket and the valve port between first oil pocket and second oil pocket.The cone valve heart 2 one ends get lodged in the valve port, and the cone valve heart the other end is connected with regulator, and regulator comprises pressure regulating screw 4 and spring 5, and these pressure regulating screw 4 one ends are connected with spring 5, and the other end of pressure regulating screw is threaded with valve body 1.The valve body 6 of pilot valve is provided with the draining hole 14 that is communicated with its valve pocket, and this draining hole is communicated with first oil pocket of valve pocket.
Also comprise a main slide valve, this main slide valve comprises the valve seat 6 that is connected with pilot valve, and a cavity is set in this valve seat, the valve core 7 that is slidingly matched in the cavity, and valve core is connected with the valve seat sidewall by elastic member 8.Elastic member 8 is a spring, and this valve core is provided with axial hole 9 and damping hole radially 10, and axial hole and damping hole are interconnected.Be provided with groove in the described cavity, groove makes and forms a slit a between cavity and the valve core 7.Also be provided with the filler opening 11 and the return opening 12 that are communicated with cavity respectively on the valve seat, valve seat 6 is provided with the oil transportation hole 13 that is communicated with the valve pocket of pilot valve (among the figure shown in the dotted line).
Working procedure of the present utility model is: pressure oil flows into from filler opening 11, and after slit a decompression, pressure reduces, and flows out from oil outlet 12 again.In this process, pressure oil also enters into second oil pocket of pilot valve valve pocket 3 successively by damping hole 10, axial hole 9, oil transportation hole 13.When the pressure of the pressure oil at oil outlet 12 places during greater than the adjustment pressure of regulator, the cone valve heart 2 is backed down, and the oil in second oil pocket of valve pocket 3 flows to draining hole 14 through valve port, first oil pocket, flows back to fuel tank from this draining hole 14.Because the effect of damping hole 10 on the valve core 7, the pressure that is arranged in the hydraulic oil of pilot valve reduces, valve core 7 disequilibriums and moving right, so slit a reduces, and decompression strengthens, and makes the pressure of oil outlet be reduced to the numerical value of adjustment.When oil outlet pressure when adjusting pressure, act on the contrary with process, the stability number of reduction valve oil outlet pressure can be regulated by pressure regulating screw.
Claims (3)
1. reduction valve, comprise pilot valve, this pilot valve comprises valve body, the cone valve heart and regulator, valve body is provided with valve pocket, it is characterized in that: also comprise a main slide valve, this main slide valve comprises the valve seat that is connected with pilot valve, a cavity is set in this valve seat, a valve core is slidingly matched in the cavity, valve core is connected with the valve seat sidewall by elastic member, this valve core is provided with axial hole and damping hole radially, axial hole and damping hole are interconnected, and are provided with groove in the described cavity, also are provided with the filler opening and the return opening that are communicated with cavity respectively on the valve seat, valve seat is provided with the oil transportation hole that is communicated with the valve pocket of pilot valve, and the valve body of described pilot valve is provided with the draining hole that is communicated with its valve pocket.
2. reduction valve according to claim 1 is characterized in that: described regulator comprises pressure regulating screw and spring, and this pressure regulating screw one end is connected with spring, and the other end of pressure regulating screw is connected with valve body.
3. reduction valve according to claim 1 is characterized in that: described elastic member is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205979773U CN201851716U (en) | 2010-11-09 | 2010-11-09 | Reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205979773U CN201851716U (en) | 2010-11-09 | 2010-11-09 | Reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851716U true CN201851716U (en) | 2011-06-01 |
Family
ID=44094107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205979773U Expired - Fee Related CN201851716U (en) | 2010-11-09 | 2010-11-09 | Reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851716U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291986A (en) * | 2013-06-26 | 2013-09-11 | 无锡商业职业技术学院 | Directly-operated type reducing valve |
| CN103953466A (en) * | 2014-04-16 | 2014-07-30 | 温州瓯斯达电器实业有限公司 | Electric-control pressure regulator for fuel |
| CN104061351A (en) * | 2014-06-13 | 2014-09-24 | 苏州华徕光电仪器有限公司 | Adjustable-pressure pilot-operated type pressure reducing valve |
| CN104196794A (en) * | 2014-07-31 | 2014-12-10 | 红安安达新材料有限责任公司 | Pressure reducing valve |
| CN106402068A (en) * | 2015-07-29 | 2017-02-15 | 长城汽车股份有限公司 | Hydraulic valve |
| CN107289191A (en) * | 2017-07-18 | 2017-10-24 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of valve core structure of adjustable output gain |
| CN109026861A (en) * | 2018-08-24 | 2018-12-18 | 浙江海洋大学 | A kind of universal decompressor of ship hydraulic system and decompression method |
| CN111497933A (en) * | 2020-04-09 | 2020-08-07 | 中国煤炭科工集团太原研究院有限公司 | Steering device and control system for steering wheel of integral hydrostatic drive vehicle under coal mine well |
-
2010
- 2010-11-09 CN CN2010205979773U patent/CN201851716U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291986A (en) * | 2013-06-26 | 2013-09-11 | 无锡商业职业技术学院 | Directly-operated type reducing valve |
| CN103953466A (en) * | 2014-04-16 | 2014-07-30 | 温州瓯斯达电器实业有限公司 | Electric-control pressure regulator for fuel |
| CN104061351A (en) * | 2014-06-13 | 2014-09-24 | 苏州华徕光电仪器有限公司 | Adjustable-pressure pilot-operated type pressure reducing valve |
| CN104196794A (en) * | 2014-07-31 | 2014-12-10 | 红安安达新材料有限责任公司 | Pressure reducing valve |
| CN106402068A (en) * | 2015-07-29 | 2017-02-15 | 长城汽车股份有限公司 | Hydraulic valve |
| CN107289191A (en) * | 2017-07-18 | 2017-10-24 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of valve core structure of adjustable output gain |
| CN109026861A (en) * | 2018-08-24 | 2018-12-18 | 浙江海洋大学 | A kind of universal decompressor of ship hydraulic system and decompression method |
| CN111497933A (en) * | 2020-04-09 | 2020-08-07 | 中国煤炭科工集团太原研究院有限公司 | Steering device and control system for steering wheel of integral hydrostatic drive vehicle under coal mine well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20121109 |