CN101660549A - Combination high-pressure valve in closed system - Google Patents
Combination high-pressure valve in closed system Download PDFInfo
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- CN101660549A CN101660549A CN200910307825A CN200910307825A CN101660549A CN 101660549 A CN101660549 A CN 101660549A CN 200910307825 A CN200910307825 A CN 200910307825A CN 200910307825 A CN200910307825 A CN 200910307825A CN 101660549 A CN101660549 A CN 101660549A
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- valve
- seat
- valve seat
- high pressure
- closed system
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Abstract
The invention discloses a combination high pressure valve in a closed system. The combination high pressure valve comprises a valve seat (1). The valve seat (1) is internally provided with two or a pair of valve core assemblies (2) which are integrated by combination of a check valve and a high-pressure valve, thus realizing high-pressure overflow and reversing oil supply; and a matching positionof a valve core (4) and the valve seat (1) is provided with a valve bush (7) which is used for lowering impact and slowing down wear. The valve core assemblies have functions of two valves due to integration of the check valve and the high-pressure valve, thus realizing the high-pressure overflow and the reversing oil supply; and the matching position of the valve core assemblies and the valve seat is provided with the valve bush which is made from a high wear-resistant material so that the valve core does not directly contact the valve seat and is matched with the valve bush, thus improving impact resistance and wear resistance, slowing down wear speed, preventing the valve core assemblies from oil leakage due to too early wear and prolonging service life. As a matching face with high machining accuracy requirements is unnecessary for the valve seat, machining difficulty also can be reduced.
Description
Technical field
The present invention relates to a kind of hydrovalve, the composite high pressure valve in particularly a kind of closed system.
Background technique
Be provided with one-way valve and high pressure valve in the existing hydraulic transmission assembly valve seat, present two valves are to be installed in respectively in two hydraulic pressure holes of valve seat, have not only increased manufacturing procedure, also are unfavorable for dwindling the valve seat volume.Valve when mangetic core assembly makes spool contact with the fitting surface of valve seat, cuts off oil circuit under spring or hydraulic pressure when work; When the fitting surface that makes spool and valve seat under spring or hydraulic pressure leaves, connect oil circuit; The fitting surface of valve seat is directly to process a chamfering at present, directly cooperate the purpose that realizes control oil channel with spool by chamfering, so the processing request of chamfering is higher, has increased difficulty of processing.Because valve seat is a cast member, valve is turn-offing and is opening in the process of oil circuit in addition, and the fitting surface of spool and valve seat can produce frequent impact, makes fitting surface be easy to produce wearing and tearing or loose, thereby causes leakage of oil, reduction of service life.
Summary of the invention
The objective of the invention is to, the valve of the composite high pressure in a kind of closed system is provided.The present invention has not only realized high pressurized overflow and commutation repairing, and has improved impact resistance and wear resistance, has slowed down the rate of wear, has prolonged working life.
Technological scheme of the present invention: the composite high pressure valve in a kind of closed system, this valve are by a pair of mangetic core assembly is set in valve seat, and each mangetic core assembly adopts one-way valve and high pressure valve to combine, and realize high pressurized overflow and commutation repairing.
In the composite high pressure valve in the above-mentioned closed system, valve pocket is set, to reduce mangetic core assembly to the impact of valve seat, the wearing and tearing that slow down valve seat in the spool and the valve seat cooperation place of mangetic core assembly.
In the composite high pressure valve in the aforesaid closed system, offer the chamfering that cooperates with spool on the described valve pocket, to increase area of contact.
In the composite high pressure valve in the aforesaid closed system, described mangetic core assembly constitutes and comprises and adjusting screw be arranged with spring on the screw rod of adjusting screw, and spring one end supports spool, an other end supported spring seat, and the end of adjusting screw is provided with the nut of fixing spring seat; Be provided with the spring of sutaining valve core assembly between spring seat and the valve seat.
In the composite high pressure valve in the aforesaid closed system, described spool and valve seat cooperation place are provided with to reduce impacts, slows down the valve pocket of wearing and tearing.
In the composite high pressure valve in the aforesaid closed system, described valve pocket is provided with chamfering, and chamfering cooperates with spool.
Compared with prior art, mangetic core assembly of the present invention is integrated by one-way valve and high pressure valve combination, makes its effect with two valves, has realized high pressurized overflow and commutation repairing; Be provided with the valve pocket that high abrasion resisting material is made by cooperation place simultaneously at mangetic core assembly and valve seat, spool is not directly contacted with valve seat, but cooperate with valve pocket, improved and done impact and wear resistance, slowed down the rate of wear, prevent the valve assembly too early because wearing and tearing anti-leakage of oil, prolonged working life.Because valve seat does not need the high fitting surface of requirement on machining accuracy, so can reduce difficulty of processing yet.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Being labeled as in the accompanying drawing: 1-valve seat, 2-mangetic core assembly, 3-adjusting screw, 4-spool, 5-spring seat, 6-nut, 7-valve pocket, 8-A hole, 9-B hole.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Embodiment.Closed system composite high pressure valve, this valve are by a pair of mangetic core assembly is set in valve seat, and each mangetic core assembly adopts one-way valve and high pressure valve to combine, and realize high pressurized overflow and commutation repairing; Spool and valve seat cooperation place at mangetic core assembly are provided with valve pocket, to reduce mangetic core assembly to the impact of valve seat, the wearing and tearing that slow down valve seat; Offer the chamfering that cooperates with spool on the described valve pocket, to increase area of contact.
Structure of the present invention constitutes and to comprise valve seat as shown in Figure 1, is provided with two mangetic core assemblies 2 in the valve seat 1, and the corresponding position of mangetic core assembly 2 offers the A hole 8 and the B hole 9 of hydraulic oil turnover usefulness; Mangetic core assembly 2 is integrated by one-way valve and high pressure valve combination, has realized high pressurized overflow and commutation repairing; Mangetic core assembly 2 constitutes and comprises and adjusting screw 3 be arranged with spring on the screw rod of adjusting screw 3, and spring one end supports spool 4, an other end supported spring seat 5, and the end of adjusting screw 3 is provided with nut 6, and with fixing spring seat 5, nut 6 is common hexagon nut; Be provided with spring between spring seat 5 and the valve seat 1, with sutaining valve core assembly 2; Spool 4 is provided with to reduce with valve seat 1 cooperation place and impacts, slows down the valve pocket 7 of wearing and tearing; Valve pocket 7 is made chamfering with the surface of contact of spool 4, to increase area of contact, valve pocket 7 can better be cooperated with spool 4.
Working principle of the present invention, referring to Fig. 1, when the oil pressure in the A hole, the left side was too high, it can head on the active force that adjusting screw on the mangetic core assembly overcomes the spring on the screw rod and move right, and makes the route shown by arrows of hydraulic oil in Fig. 1 enter two hydraulic pressure holes between the valve and carries out overflow.And after hydraulic oil enters two hydraulic pressure holes between the valve, the middle oil pressure in hydraulic pressure hole is higher than the oil pressure in the B hole, the right between two valves, hydraulic oil can overcome acting force of the spring and push the spool of the right on the mangetic core assembly open, make the middle hydraulic oil in hydraulic pressure hole between two valves enter the B hole on the right, thereby reach the function of commutation repairing.Otherwise, also can be when the hydraulic fluid pressure in the B hole on the right is too high according to same principle, overflow to the A hole on the left side from the B hole on the right, arrive the function of overflow commutation repairing.
Claims (6)
1. the composite high pressure valve in the closed system is characterized in that: this valve is by a pair of mangetic core assembly is set in valve seat, and each mangetic core assembly adopts one-way valve and high pressure valve to combine, and realizes high pressurized overflow and commutation repairing.
2. the composite high pressure valve in the closed system according to claim 1 is characterized in that: spool and valve seat cooperation place at mangetic core assembly are provided with valve pocket, to reduce mangetic core assembly to the impact of valve seat, the wearing and tearing that slow down valve seat.
3. the composite high pressure valve in the closed system according to claim 2 is characterized in that: offer the chamfering that cooperates with spool on the described valve pocket, to increase area of contact.
4. according to the composite high pressure valve in each described closed system of claim 1 to 3, it is characterized in that: described mangetic core assembly (2) formation comprises adjusting screw (3), be arranged with spring on the screw rod of adjusting screw (3), spring one end supports spool (4), an other end supported spring seat (5), the end of adjusting screw (3) is provided with the nut (6) of fixing spring seat (5); Be provided with the spring of sutaining valve core assembly (2) between spring seat (5) and the valve seat (1).
5. the composite high pressure valve in the closed system according to claim 4 is characterized in that: described spool (4) is provided with to reduce with valve seat (1) cooperation place and impacts, slows down the valve pocket (7) of wearing and tearing.
6. the composite high pressure valve in the closed system according to claim 5 is characterized in that: described valve pocket (7) is provided with chamfering, and chamfering cooperates with spool (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910307825A CN101660549A (en) | 2009-09-27 | 2009-09-27 | Combination high-pressure valve in closed system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910307825A CN101660549A (en) | 2009-09-27 | 2009-09-27 | Combination high-pressure valve in closed system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101660549A true CN101660549A (en) | 2010-03-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910307825A Pending CN101660549A (en) | 2009-09-27 | 2009-09-27 | Combination high-pressure valve in closed system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101660549A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900145A (en) * | 2010-08-30 | 2010-12-01 | 无锡威孚精密机械制造有限责任公司 | High-pressure overflow valve |
| CN102644631A (en) * | 2012-03-27 | 2012-08-22 | 西安交通大学 | High-pressure and high-flow alternating-current servo direct-driven eccentric shaft type flow valve |
| CN110185804A (en) * | 2019-05-14 | 2019-08-30 | 佛山一精模具配件有限公司 | A kind of resistance to compression pneumatic jack valve |
-
2009
- 2009-09-27 CN CN200910307825A patent/CN101660549A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900145A (en) * | 2010-08-30 | 2010-12-01 | 无锡威孚精密机械制造有限责任公司 | High-pressure overflow valve |
| CN102644631A (en) * | 2012-03-27 | 2012-08-22 | 西安交通大学 | High-pressure and high-flow alternating-current servo direct-driven eccentric shaft type flow valve |
| CN102644631B (en) * | 2012-03-27 | 2014-11-05 | 西安交通大学 | High-pressure and high-flow alternating-current servo direct-driven eccentric shaft type flow valve |
| CN110185804A (en) * | 2019-05-14 | 2019-08-30 | 佛山一精模具配件有限公司 | A kind of resistance to compression pneumatic jack valve |
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Application publication date: 20100303 |