CN101469726A - Stacked compression release valve - Google Patents
Stacked compression release valve Download PDFInfo
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- CN101469726A CN101469726A CN 200710173770 CN200710173770A CN101469726A CN 101469726 A CN101469726 A CN 101469726A CN 200710173770 CN200710173770 CN 200710173770 CN 200710173770 A CN200710173770 A CN 200710173770A CN 101469726 A CN101469726 A CN 101469726A
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- valve
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- runner
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Abstract
The present invention discloses a overlaid compression release valve hydraulic controlling valve field, which includes a valve body, an adjust element that mounted on the right end of the valve body, and a threaded sleeve mounted on the left end of the valve body; a valve body main hole is made by casting inside the valve body; P1, P2, A1, A2, B1, B2, T1, T2 flow passage, wherein P1 communicates with P2, A1 and A2 communicated through the main hole, B1 communicates with B2, T1 communicates with T2 and passes through the main hole; a C flow passage is set bypass the lateral surface of the main hole between the valve body A1 and the flow passage A2; a one-way valve hole is set on the lateral surface of the valve body; a one-way valve is mounted inside the one-way valve; one end of the one-way valve communicates with the flow passage A2 and the other end communicates with the outer wall of the valve body, the top end communicates with the flow passage C, and the one-way valve allows oil can only flow from oil port A2 to oil port A1. The beneficial effect of the invention is that inside of the overlaid one-way valve adopts pouring flow passage which simplifies structure and reduces fabrication holes; a selectable one-way valve is added to become a one-way compression release valve so as to make oil flows freely in opposite direction.
Description
Technical field:
The present invention relates to field of hydraulic control, specifically is a kind of stacked compression release valve that is used for the hydraulic system decompression.
Background technique:
Reduction valve is the flow that a kind of aperture that adopts the open-shut device in the control valve body is regulated medium, and the pressure of medium is reduced, and regulates the aperture of open-shut device simultaneously by the effect of downstream pressure, and downstream pressure is kept within the specific limits.Present reduction valve is compact inadequately owing to installing, and does not have secondary oil circuit pressure protect, uses inconvenient.
Summary of the invention:
Technical problem to be solved by this invention is to provide a kind of secondary oil circuit pressure protect that has, and can select the stacked compression release valve of one-way valve for use.
The present invention for the technological scheme that the technical solution problem adopts is:
A kind of stacked compression release valve comprises a valve body, is installed in the regulating element of valve body right-hand member, is installed in the swivel nut of valve body left end;
The inside of described valve body has main aperture, main aperture adopts the ladder cellular type, on valve body, make P1, P2, A1, A2, B1, B2, T1, T2 runner by casting method, P1, P2 communicate, A1, A2 communicate through the main aperture connection, and B1, B2 communicate, and T1, T2 communicate and pass through main aperture, place the control spool in described main aperture, the control valve in-core has spool bore;
Have the control oil duct in the bottom of described valve body main aperture and communicate, in the control oil duct damper is installed with the A2 runner.
The described regulating element that is installed in the valve body right-hand member comprises valve pocket, valve pocket is connected in the main aperture of valve body right-hand member, O shape circle is installed between the outer wall of valve pocket and the inwall of main aperture, in described valve pocket, screw in the adjusting nut that is with adjustable lever, next-door neighbour's adjusting nut screws in adjustment sleeve, fixes with nut at the right-hand member of described adjustable lever, and left end is loaded onto spring, spring is fixed on the spring seat, and the central position of spring seat has circular groove;
Described spring seat leans against on the step surface of valve body right-hand member, spring seat contacts with the control spool, on described surface of contact, embed circular steel ball is arranged, one end of steel ball is embedded on the spring seat in the circular groove, the other end is embedded in the spool bore of control spool, and the surface of contact of steel ball and described control spool and spring seat evenly distributes.
The described swivel nut that is installed in the valve body left end, the surface of contact of swivel nut and valve interior wall are provided with O shape circle, have aperture on swivel nut, and aperture one end communicates with the valve body main aperture, and the other end is communicated with the outer wall of swivel nut;
Port at described aperture connects pressure gauge, can record secondary pressure; Also can plug screw be installed, together by seal ring and swivel nut sealing and fixing at the port of aperture.
The further technological scheme of the present invention is: between valve A 1 and A2 runner, walk around main aperture and produce a C runner in the side, have unidirectional valve opening in side of valve body, one-way valve is installed in the unidirectional valve opening, described one-way valve one end communicates with the A2 runner, the other end is communicated with valve outer wall, and the top communicates with the C runner; Described one-way valve comprises unidirectional valve seat, and an end of unidirectional valve seat is with between O shape circle and the unidirectional valve opening inwall sealing and fixing together, and the position that O shape is enclosed is between A2 runner and C runner; In the described unidirectional valve seat nonreturn valve core and spring are installed, spring housing is on the cylinder end face of nonreturn valve core, and an end is fixed on the spring seat, fixes by seal with O ring between spring seat and the valve body; Described one-way valve makes oil flow to the A1 hydraulic fluid port from the A2 hydraulic fluid port only.
The invention has the beneficial effects as follows the inner cast runner that adopts of stacked unidirectional valve, simplify the structure, reduce auxiliary hole, and behind the use swivel nut, can connect pressure gauge in its back, be used to monitor secondary pressure, can reduce pressure tap, reduced outer seepage link, helped improving total quality and reduce cost.Increase the selectable one-way valve, can become one way pressure-reducing valve, make fluid free-flow in the other direction.Regulating element is hit by a bullet and is embedded steel ball with cold-press method on the spring abutment, and it and spool surface of contact are evenly distributed, and the stressed of spool concentrated on the same axis, can not cause spool to produce stuck phenomenon because of being subjected to angular force.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that the present invention installs A-A face sectional view behind the one-way valve;
Among the figure:
1-valve body; 2-control spool; 3-spring; 4-regulating element; 5-control oil duct;
6-spool bore; 7-spring chamber; 8-swivel nut; 9-spool land; 10-aperture; 11-plug screw;
12-damper; 13-steel ball; 14-spring seat; 15-adjustable lever; 16-adjusting nut;
17-packing ring; 18-adjustment sleeve; 19-nut; 20-valve pocket; 21-unidirectional valve seat; 22-O shape circle;
23-nonreturn valve core; 24-spring; 25-O shape circle; 26-spring seat; 27-unidirectional valve opening.
Embodiment:
Below in conjunction with drawings and the specific embodiments the present invention is done further introduction:
Referring to Fig. 1, the inside of valve body 1 has main aperture, main aperture adopts the ladder cellular type, go out P1 in valve body 1 inside by the running casting legal system, P2, A1, A2, B1, B2, T1, the T2 runner, P1, P2 communicates, A1, A2 communicates through the main aperture connection, B1, B2 communicates, T1, T2 communicates and passes through main aperture, put control spool 2 in the valve body main aperture, have spool bore 6 on the control spool 2, have control oil duct 5 communicates with the A2 runner in the bottom of valve body main aperture, in the control oil duct 5 damper is installed, right-hand member at valve body 1 is installed regulating element 4, left end is installed swivel nut 8, install with seal with O ring, regulating element 4 is by spring seat 14, spring 3, adjustable lever 15, adjusting nut 16, packing ring 17, adjustment sleeve 18, nut 19 and valve pocket 20 are formed, in valve pocket 20, screw in the adjusting nut 16 that is with adjustable lever 15, screw on adjustment sleeve 18 again, fixing at adjustable lever 15 right-hand members at last with nut 19, adjustable lever 15 the other ends are loaded onto spring 3, spring 3 is fixing by spring seat 14, contacts with control spool 2 in the valve body 1, puts on the surface of contact of spring seat 14 and control spool 2 and is embedded with steel ball 13, one end of steel ball 13 is embedded on the spring seat 14 in the circular groove, the other end is embedded in the spool bore 6 of control spool 2, and steel ball 13 evenly distributes with the surface of contact of described control spool 2 and spring seat 14, and the pressure that makes spool 2 be subjected to like this concentrates on the same axis, spool 2 can be partial to because of discontinuity, thereby causes the stuck phenomenon of spool 2.Regulating element 4 is subjected to the hexahedron on the adjustable lever partly to drive the position that changes adjusting nut 16 by rotation adjustable lever 15, thereby the decrement that changes spring 3 is regulated pressure, and can regulate pressure rating this moment with the spring 3 of different brackets.
Have aperture 10 on the swivel nut of valve body left end, aperture 10 1 ends communicate with the valve body main aperture, and the other end is communicated with the outer wall of swivel nut 8, and the port connection pressure gauge by aperture 10 can record secondary pressure; Also can plug screw be installed, together by seal ring and swivel nut 8 sealing and fixing at the port of aperture 10.
As shown in Figure 2: one way pressure-reducing valve if desired, between A1 and A2 runner, produce a C runner in the side by walking around main aperture, have unidirectional valve opening 27 in the valve body side, in the unidirectional valve opening 27 one-way valve is installed, one-way valve one end communicates with the A2 runner, the other end is communicated with valve body 1 outer wall, and the top communicates with the C runner.A1, A2 runner are connected by one-way valve, the one-way valve outside is unidirectional valve seat 21, one end of unidirectional valve seat 21 is with between O shape circle 22 and unidirectional valve opening 27 inwalls sealing and fixing together, the position of O shape circle is between A2 runner and C runner, nonreturn valve core 23 and spring 24 are installed in the unidirectional valve seat 21, spring 24 is enclosed within on the cylinder end face of nonreturn valve core 23, spring 24 1 ends are fixed on the spring seat 26, enclose 25 sealing and fixing by O shape between spring seat 26 and the valve body, this moment, one-way valve made oil flow to the A1 hydraulic fluid port from the A2 hydraulic fluid port only.
Embodiment:
Explain with shown in Figure 1.In static position, this valve is often opened, and fluid can freely flow to hydraulic fluid port A2 from A1.Hydraulic fluid port A2 pressure acts on the piston area on spring 3 opposites simultaneously through control oil channel 5.When hydraulic fluid port A2 pressure surpassed spring 3 setting values, control spool 2 moved to the control position, and it is stable that the pressure of hydraulic fluid port A2 keeps.Signal and control oil provide from hydraulic fluid port A2 inside through damper 12 and control oil duct 5.If the pressure of hydraulic fluid port A2 continues to raise owing to external force acts on final controlling element, control spool 2 just continues to move to spring 3 directions.The spool land 9 of hydraulic fluid port A2 on control piston 2 is communicated with fuel tank like this.Excessive fluid flows back to fuel tank, further raises to prevent pressure.Spring chamber 7 through spool bore 6 to hydraulic fluid port T (Y) by the outside rush down oil to fuel tank.Swivel nut 8 backs also can connect the secondary pressure monitoring that pressure gauge is used for valve with plug screw 11 sealings.As shown in Figure 2,27 places are for installing the unidirectional valve opening of one-way valve, and this one-way valve makes oil flow from the A2 hydraulic fluid port toward the A1 hydraulic fluid port only.
More than show and described basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (9)
1. stacked compression release valve, comprise a valve body, be installed in the regulating element of valve body right-hand member, be installed in the swivel nut of valve body left end, it is characterized in that: described valve inner is made valve body main aperture, P1 by casting method, P2, A1, A2, B1, B2, T1, the T2 runner, P1, P2 communicates, A1, A2 communicates through the main aperture connection, B1, B2 communicates, T1, T2 communicates and passes through the main aperture runner, between valve A 1 and A2 runner, walk around main aperture and produce a C runner in the side, have unidirectional valve opening in side of valve body, one-way valve is installed in the unidirectional valve opening, described one-way valve one end communicates with the A2 runner, the other end is communicated with valve outer wall, and the top communicates with the C runner.
2. stacked compression release valve according to claim 1 is characterized in that: place the control spool in the described main aperture, have spool bore on the control spool.
3. stacked compression release valve according to claim 1 is characterized in that: have the control oil duct on the lower end of described valve body main aperture, the control oil duct communicates with the A2 runner, in the control oil duct damper is installed.
4. stacked compression release valve according to claim 1, it is characterized in that: the described regulating element that is installed in the valve body right-hand member comprises valve pocket, in described valve pocket, screw in the adjusting nut that is with adjustable lever, next-door neighbour's adjusting nut screws in adjustment sleeve, the right-hand member of adjustable lever is fixed with nut, left end is loaded onto spring, and spring is fixedly connected by spring seat.
5. spring seat according to claim 4, it is characterized in that: described spring seat leans against on the step surface of valve body right-hand member, spring seat contacts with the control spool, on described surface of contact, embed circular steel ball is arranged, one end of steel ball is embedded on the spring seat in the circular groove, and the other end is embedded in the spool bore of control spool.
6. stacked compression release valve according to claim 1, it is characterized in that: the described swivel nut that is installed in the valve body left end, the surface of contact of swivel nut and valve interior wall are provided with O shape circle, have aperture on swivel nut, aperture one end communicates with the valve body main aperture, and the other end is communicated with the outer wall of swivel nut.
7. swivel nut according to claim 6 is characterized in that: the port of aperture connects pressure gauge on described swivel nut, can record secondary pressure, at the port of aperture plug screw is installed, by seal ring and swivel nut sealing and fixing together.
8. stacked compression release valve according to claim 1 is characterized in that: described one-way valve comprises unidirectional valve seat, and an end of unidirectional valve seat is with between O shape circle and the unidirectional valve opening inwall sealing and fixing together, and the position that O shape is enclosed is between A2 runner and C runner.
9. unidirectional valve seat according to claim 8, it is characterized in that: in the described unidirectional valve seat nonreturn valve core and spring are installed, spring housing is on the cylinder end face of nonreturn valve core, and an end is fixed on the spring seat, fixes by seal with O ring between spring seat and the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710173770 CN101469726A (en) | 2007-12-29 | 2007-12-29 | Stacked compression release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710173770 CN101469726A (en) | 2007-12-29 | 2007-12-29 | Stacked compression release valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101469726A true CN101469726A (en) | 2009-07-01 |
Family
ID=40827467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710173770 Pending CN101469726A (en) | 2007-12-29 | 2007-12-29 | Stacked compression release valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101469726A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878132A (en) * | 2011-07-12 | 2013-01-16 | 上海立新液压有限公司 | Stacked pump valve |
| CN102878334A (en) * | 2011-07-11 | 2013-01-16 | 上海立新液压有限公司 | Flow-stabilizing controller |
| CN103174694A (en) * | 2011-12-26 | 2013-06-26 | 上海立新液压有限公司 | Overlying type pressure-reducing valve |
| CN104481960A (en) * | 2014-12-17 | 2015-04-01 | 苏州福润机械有限公司 | Overlapped sequence valve |
| CN107989839A (en) * | 2017-11-23 | 2018-05-04 | 宁波文泽机电技术开发有限公司 | Two-way pressure-compensated valve |
| CN110332166A (en) * | 2019-07-09 | 2019-10-15 | 南通翔骜液压润滑设备有限公司 | Stacked compression release valve |
| CN112901580A (en) * | 2021-01-13 | 2021-06-04 | 嘉善雪帕尔工具有限公司 | High-performance control valve |
| CN113983018A (en) * | 2021-10-28 | 2022-01-28 | 浙江华巨液压科技有限公司 | One-way pressure reducing valve |
-
2007
- 2007-12-29 CN CN 200710173770 patent/CN101469726A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878334A (en) * | 2011-07-11 | 2013-01-16 | 上海立新液压有限公司 | Flow-stabilizing controller |
| CN102878132A (en) * | 2011-07-12 | 2013-01-16 | 上海立新液压有限公司 | Stacked pump valve |
| CN103174694A (en) * | 2011-12-26 | 2013-06-26 | 上海立新液压有限公司 | Overlying type pressure-reducing valve |
| CN104481960A (en) * | 2014-12-17 | 2015-04-01 | 苏州福润机械有限公司 | Overlapped sequence valve |
| CN107989839A (en) * | 2017-11-23 | 2018-05-04 | 宁波文泽机电技术开发有限公司 | Two-way pressure-compensated valve |
| CN107989839B (en) * | 2017-11-23 | 2019-12-24 | 江苏南京白马现代农业高新技术产业园有限公司 | Two-way pressure compensating valve |
| CN110332166A (en) * | 2019-07-09 | 2019-10-15 | 南通翔骜液压润滑设备有限公司 | Stacked compression release valve |
| CN112901580A (en) * | 2021-01-13 | 2021-06-04 | 嘉善雪帕尔工具有限公司 | High-performance control valve |
| CN112901580B (en) * | 2021-01-13 | 2023-03-24 | 嘉善雪帕尔工具有限公司 | High-performance control valve |
| CN113983018A (en) * | 2021-10-28 | 2022-01-28 | 浙江华巨液压科技有限公司 | One-way pressure reducing valve |
| CN113983018B (en) * | 2021-10-28 | 2023-08-18 | 浙江三尚智迪科技有限公司 | One-way pressure reducing valve |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090701 |