CN200946611Y - Hydraulic pressure relief valve - Google Patents
Hydraulic pressure relief valve Download PDFInfo
- Publication number
- CN200946611Y CN200946611Y CN 200620044952 CN200620044952U CN200946611Y CN 200946611 Y CN200946611 Y CN 200946611Y CN 200620044952 CN200620044952 CN 200620044952 CN 200620044952 U CN200620044952 U CN 200620044952U CN 200946611 Y CN200946611 Y CN 200946611Y
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- valve
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- inlet control
- main inlet
- hole
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- Expired - Fee Related
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Abstract
The utility model provides a hydraulic constant pressure valve, which mainly solves the technical problem that great pressure changes and short bellow life exert a negative influence on the useful life of the whole hydraulic switch. The hydraulic constant pressure valve in the technical proposal of the utility model is a bi-directional regulating valve, which comprises a valve body, a main regulating valve and an auxiliary regulating valve, wherein the main regulating valve is positioned in cavity of the valve body, and the auxiliary regulating valve is positioned in a radial through hole of the main regulating valve; upper and lower parts of the cavity are respectively the working space and oil intake space; working space of the valve body above the main regulating valve is provided with a main valve regulator with a through hole, a main valve regulating spring being provided between the main regulating valve and the main valve regulator; head of the main regulating valve is provided with an auxiliary valve regulator with a through hole, an auxiliary regulating spring being provided between the auxiliary regulating valve and the auxiliary valve regulator. The utility model may be mounted before a hydraulic action element for pressure keeping and time delaying.
Description
Technical field: the utility model relates to a kind of hydrovalve, particularly a kind of stabilizing hydraulic pressure valve.
Background technique: on the torque converter of the Japanese locomotive of introducing, 10.5 hydraulic operation switches (the switch model on a kind of locomotive) adopt bellows to make at present.Because hydraulic fluid pressure when 10.5 hydraulic operation switches directly reflect the locomotive mule carriage, hydraulic pressure is generally 1.8MP during mule carriage, is 0MP during parking, so the pressure surge scope of this switch is bigger, that is: 0-1.8MP.The pressure fluctuation scope is big, and bellows changes greatly, the fatigue strength increase (bellows and hydraulic switch are done as a whole, in case bellows bursts, just necessary whole replacing), be generally working life 8 months.Stoste presses the shortcoming of making switch and is thus: the hydraulic switch variation in pressure is big; The bellows life-span is short, influences the whole hydraulic switch life-span.In order to reduce hydraulic operation switch fatigue degree, prolong its working life, thereby alleviate the cost of overhaul, guarantee normal production run, keep the pressure stability of hydraulic power just to seem extremely important.
Summary of the invention: the purpose of this utility model provides a kind of stabilizing hydraulic pressure valve, and it is big mainly to solve the hydraulic switch variation in pressure; The bellows life-span is short, influences the technical problem in whole hydraulic switch life-span.The technical solution of the utility model is: a kind of stabilizing hydraulic pressure valve, be the bidirectional modulation valve, comprise valve body, main inlet control valve and secondary modulating valve, main inlet control valve places in the valve body cavity, secondary modulating valve places in the main inlet control valve radial direction through hole, cavity top is active chamber, the bottom is an oil suction chamber, be provided with the main valve regulator of through hole in the valve body active chamber above main inlet control valve, between main inlet control valve and the main valve regulator main valve Regulation spring is housed, the main inlet control valve head is equipped with the secondary valve adjuster that has through hole, and secondary valve regulation spring is housed between secondary modulating valve and the secondary valve adjuster.
Body cavity middle and lower part inwall is the conical surface, and with the main inlet control valve cone match; The main inlet control valve radial direction through hole is the reducing through hole, the secondary modulating valve head conical surface and reducing place cone match.
The beneficial effects of the utility model are: before the utility model is installed in the hydraulic operation switch, keep certain pressure in the time of can making the hydraulic switch release, reduce the variation of pressure; The pressure that keeps can be adjusted by working condition requirement.Can reduce hydraulic operation switch fatigue degree, prolong its working life.The hydraulic operation switch increases service time greatly, than having howed originally more than 2 times, be generally service time about 2 years, and the switch more stable work is reliable, impacts obviously to alleviate, and helps the work of torque converter more.
Description of drawings:
Accompanying drawing is the utility model structural representation
Among the figure: 1-valve body, 2-main inlet control valve, the secondary modulating valve of 3-, 4-active chamber, 5-oil suction chamber, 6-main valve regulator, 7-main valve Regulation spring, the secondary valve adjuster of 8-, the secondary valve regulation spring of 9-.
Embodiment: with reference to accompanying drawing, a kind of stabilizing hydraulic pressure valve, be the bidirectional modulation valve, comprise valve body 1, main inlet control valve 2 and secondary modulating valve 3, main inlet control valve 2 places in the valve body cavity, secondary modulating valve 3 places in the main inlet control valve radial direction through hole, cavity top is active chamber 4, the bottom is an oil suction chamber 5, be provided with the main valve regulator 6 of through hole in the valve body active chamber above main inlet control valve, between main inlet control valve 2 and the main valve regulator 6 main valve Regulation spring 7 is housed, main inlet control valve 2 heads are equipped with the secondary valve adjuster 8 that has through hole, and secondary valve regulation spring 9 is housed between secondary modulating valve 3 and the secondary valve adjuster 8.
The working principle of pressure maintaining valve is as follows: when pressure fluid enters oil suction chamber 5, if no pressure in this moment active chamber 4, main inlet control valve 2 is backed down, pressure fluid enters active chamber 4, along with entering of pressure fluid, pressure in the active chamber 4 raises gradually, and when pressure reached the main inlet control valve setting pressure, main inlet control valve 2 was just closed.As long as the pressure in the active chamber 4 is lower than the main inlet control valve setting pressure, main inlet control valve 2 just is opened, to guarantee that a constant compression force is arranged in the active chamber 4.When the pressure in the oil suction chamber 5 was zero, main inlet control valve closed, and secondary modulating valve 3 is opened, and the pressure fluid in the active chamber 4 flows to oil suction chamber 5 by secondary modulating valve.Along with the pressure fluid in the oil suction chamber 5 flows out,
The pressure of active chamber 4 reduces gradually, and when the pressure in the active chamber 4 was reduced to secondary modulating valve 3 setting pressures, secondary modulating valve 3 just was closed, and has locked certain pressure (pressure by the setting of secondary modulating valve decides) in the active chamber 4 all the time thereby make.
This pressure maintaining valve is directly installed on the front of bellows, just played the effect of regulating hydraulic operation switch pressure, can regulate pressure voluntarily, the pressure range of control bellows, certainly can not be consistent and keep too high pressure, can increase the pressure wearing and tearing of bellows like that on the contrary, alleviate the life-span.
The utility model is applicable to each pressure action element; after hydraulic element are adorned this valve; as run into unexpected power failure; hydraulic system pressure plays the effect of pressurize, time-delay, has improved Safety performance, in addition; during device start; can play buffer function, guarantee stable working, protect impact hydraulic element.
Claims (3)
1, a kind of stabilizing hydraulic pressure valve, it is characterized in that, be the bidirectional modulation valve, comprise valve body, main inlet control valve and secondary modulating valve, main inlet control valve places in the valve body cavity, secondary modulating valve places in the main inlet control valve radial direction through hole, cavity top is active chamber, the bottom is an oil suction chamber, be provided with the main valve regulator of through hole in the valve body active chamber above main inlet control valve, between main inlet control valve and the main valve regulator main valve Regulation spring is housed, the main inlet control valve head is equipped with the secondary valve adjuster that has through hole, and secondary valve regulation spring is housed between secondary modulating valve and the secondary valve adjuster.
2, a kind of stabilizing hydraulic pressure valve according to claim 1 is characterized in that, body cavity middle and lower part inwall is the conical surface, and with the main inlet control valve cone match.
3, a kind of stabilizing hydraulic pressure valve according to claim 1 is characterized in that, the main inlet control valve radial direction through hole is the reducing through hole, the secondary modulating valve head conical surface and reducing place cone match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044952 CN200946611Y (en) | 2006-08-18 | 2006-08-18 | Hydraulic pressure relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044952 CN200946611Y (en) | 2006-08-18 | 2006-08-18 | Hydraulic pressure relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200946611Y true CN200946611Y (en) | 2007-09-12 |
Family
ID=38733672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620044952 Expired - Fee Related CN200946611Y (en) | 2006-08-18 | 2006-08-18 | Hydraulic pressure relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200946611Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109292629A (en) * | 2018-10-26 | 2019-02-01 | 中船华南船舶机械有限公司 | A kind of crane Control in Hydraulic Rotation System |
-
2006
- 2006-08-18 CN CN 200620044952 patent/CN200946611Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109292629A (en) * | 2018-10-26 | 2019-02-01 | 中船华南船舶机械有限公司 | A kind of crane Control in Hydraulic Rotation System |
| CN109292629B (en) * | 2018-10-26 | 2020-05-05 | 中船华南船舶机械有限公司 | Hydraulic rotating system of crane |
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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: 20070912 Termination date: 20090918 |