CN201963624U - Pressure adjusting valve capable of controlling oil pressure - Google Patents
Pressure adjusting valve capable of controlling oil pressure Download PDFInfo
- Publication number
- CN201963624U CN201963624U CN2010206851495U CN201020685149U CN201963624U CN 201963624 U CN201963624 U CN 201963624U CN 2010206851495 U CN2010206851495 U CN 2010206851495U CN 201020685149 U CN201020685149 U CN 201020685149U CN 201963624 U CN201963624 U CN 201963624U
- Authority
- CN
- China
- Prior art keywords
- valve body
- piston
- pressure
- oil
- spring seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Safety Valves (AREA)
Abstract
The utility model provides a pressure adjusting valve capable of controlling the oil pressure, which is used for controlling the pressure of an oil way in power equipment. A top cover at the upper end of a valve body is provided with an oil inlet, the side wall of the valve body is provided with an oil outlet, the inner wall of the valve body is provided with a ring-shaped stop ring, and an overflowing hole is arranged at the lower part of the stop ring on the side wall of the valve body; a screw hole is arranged on a lower bottom cover of the valve body; a piston is arranged in the valve body at the lower part of the stop ring, and the piston is provided with a centre hole; the centre hole of the piston is internally sheathed with a piston rod, the lower end of the piston rod is fixed on the upper end surface of a circular spring seat, and a compression spring is arranged between the piston and the spring seat; a screw rod is arranged at the lower part of the spring seat perpendicular to the end surface of the spring seat, and the screw rod is arranged in the screw hole of the lower bottom cover of the valve body; and a rotating handle is fixed on the outer end of the screw rod. The pressure adjusting valve has the effects that the one-way oil flow pressure can be adjusted, the problems such as the pressure holding or getting out of control caused by the overlarge oil flow are solved, and the problems that the unavailable oil supply caused by low pressure, the gears malfunction, and the gears disordering are solved; and a speed changing box is preferably protected.
Description
Technical field
The utility model relates to the pressure controlled pressure regulator valve of a kind of power equipment oil circuit.
Background technique
At present, hydraulic oil container and gearbox pressure lubrication, the fuel feeding between the gearbox push-plate hydraulic power generally carries out fuel feeding by hydraulic total pump, and the pressure of hydraulic oil is determined directly that by hydraulic total pump the high low value of oil pressure can't be regulated.When the low fuel pressure oil mass after a little while, the oil of hydraulic oil container can't normally infeed gearbox under running state, returns in the gearbox operation process to have following problem: 1. gear is malfunctioning, 2. gear entanglement, 3. the gearbox push-plate damages; When the high oily flow of oil pressure is excessive, can occur building the pressure or runaway condition.
The model utility content
The purpose of this utility model is: the pressure regulator valve that a kind of may command oil pressure is provided.The manual adjustment pilot pressure guarantees that the pressure to the clutch of gearbox push-plate is normal when equipment operation, and protection gearbox push-plate has avoided oil to flow through building the pressure or the decompression state of causing greatly.The deficiency of malfunctioning, the gear entanglement of gear when solving low fuel pressure.
The technical solution adopted in the utility model is: the pressure regulator valve of may command oil pressure, mainly form by valve body, piston, piston rod, seal ring, screw rod, pressure spring, spring seat and rotatable handle, valve body is a cylinder barrel shaped, there is top cover the valve body upper end, it is characterized in that: valve body upper end top cover has filler opening, the valve body upper side wall has oil outlet, and valve interior wall has an annular retaining ring, on back-up ring bottom and the sidewall at valve body overflow hole is arranged.On the lower bottom cover of valve body, screw is arranged; In valve body and in the bottom of back-up ring piston is arranged, piston has center hole; Be with a piston rod in piston center hole, piston can slide on piston rod.The lower end of piston rod is fixed on the upper-end surface of coil component spring seat, between piston and spring seat pressure spring is arranged; Bottom and uprighting spring seat end face at spring seat have a screw rod, and screw rod is in the screw of valve body lower bottom cover; Outer end at screw rod is fixed with rotatable handle.
The upper end of overflow hole is taper, and the overflow hole lower end is a rectangular.
On the wall of piston, seal ring is arranged.
Be provided with overflow hole at the valve body internal upper part, when oil pressure and oily stream exceed rated pressure, promote piston and move down, piston downward distance that moves in valve body equals the compressed distance of pressure spring.By piston downward moving in valve body, UNICOM in overflow hole and the valve body, the beginning of oil stream is drained unnecessary oil mass along overflow hole, is recycled to fuel tank.When oil pressure and oil flowed in rated pressure, what piston made progress in valve body moved, and oil flows and normally enters gearbox by oil outlet.Range of regulation is kept between 1.2～1.6MPa all the time, guarantees that hydraulic total pump is to the gearbox fuel feeding.
The beneficial effects of the utility model: the pressure regulator valve of the utility model may command oil pressure, can carry out unidirectional oily flowing pressure and regulate, solved oil and flow through building the pressure or problem out of control of causing greatly, and solved low pressure can't fuel feeding and gear is malfunctioning, the gear entanglement; Protect gearbox better; Applied widely, can also be applicable to other oil-servicing facilitiess.
Description of drawings
Fig. 1 is the pressure regulator valve structural profile schematic representation of the utility model may command oil pressure.
Fig. 2 is the utility model structural profile schematic representation.
Among the figure, 1-valve body, 2-piston, 3-piston rod, 4-back-up ring, 5-seal ring, 6-overflow hole, 7-screw rod, 8-pressure spring, 9-spring seat, 10-filler opening, 11-oil outlet, 12-rotatable handle.
Embodiment
Embodiment 1: the pressure regulator valve with a may command oil pressure is an example, and the utility model is described in further detail.
Consult Fig. 1.The pressure regulator valve of the utility model may command oil pressure mainly is made up of valve body 1, piston 2, piston rod 3, seal ring 5, screw rod 7, pressure spring 8, spring seat 9 and rotatable handle 12.
Consult Fig. 2.Valve body 1 is a cylinder barrel shaped, and there is top cover valve body 1 upper end.Valve body 1 upper end top cover has a filler opening 10, and valve body 1 upper side wall has an oil outlet 11, and valve body 1 inwall has an annular retaining ring 4, and annular retaining ring 4 is an one with valve body.In back-up ring 4 bottoms and an overflow hole 6 arranged on the sidewall of valve body 1; The upper end of overflow hole 6 is taper, and overflow hole 6 lower ends are rectangular.At the lower bottom cover center of valve body 1 screw is arranged.
Consult Fig. 1.In valve body 1 and in the bottom of back-up ring 4, a cylindrical piston 2 is arranged, seal ring 5 is arranged on the wall of piston 2 one.Piston 2 has center hole; Be with a piston rod 3 in piston 2 center holes, piston 2 can slide on piston rod 3.The lower end of piston rod 3 is welded on the upper-end surface of coil component spring seat 9, and a pressure spring 8 is arranged between piston 2 and spring seat 9; Bottom and uprighting spring seat 9 end faces at spring seat 9 have a screw rod 7, and screw rod 7 is in the screw of valve body 1 lower bottom cover; Be fixed with a rotatable handle 12 in the outer end of screw rod 7.
The filler opening 10 usefulness high-voltage tube screwed connections of valve body 1 are in the oil pressure master cylinder.When equipment operation, oil pressure can be transferred to 1.2～1.6MPa, make oil pressure control within the specific limits, thereby under running state, hydraulic pressure is normally infeeded gearbox, make gearbox reach required normal pressure.When oil pressure and oily stream exceeded rated pressure, hydraulic oil promoted piston 2, compression pressure spring 8, and overflow hole 6 is exposed in piston 2 beginnings downward moving in valve body 1.Oil stream beginning is drained unnecessary oil mass along overflow hole 6, and the oil stream of overpressure from returning fuel tank, is guaranteed the required rated pressure of gearbox.Strengthen along with oily stream exceeds rated pressure, overflow hole 6 excretions also strengthen.When overflow hole 6 excretions reached maximum and advance, internal oil pressure reduced, and pressure spring 8 begins return gradually, and what piston 2 made progress in valve body 1 moves, and piston 2 withstands on back-up ring 4 places, sealing overflow hole 6.When oil pressure and oil stream recovery rated pressure, oil stream normally enters gearbox by oil outlet 11.
Claims (3)
1. the pressure regulator valve of a may command oil pressure, mainly form by valve body (1), piston (2), piston rod (3), seal ring (5), screw rod (7), pressure spring (8), spring seat (9) and rotatable handle (12), valve body (1) is a cylinder barrel shaped, there is top cover valve body (1) upper end, it is characterized in that: valve body (1) upper end top cover has filler opening (10), valve body (1) upper side wall has oil outlet (11), valve body (1) inwall has an annular retaining ring (4), in back-up ring (4) bottom and overflow hole (6) arranged on the sidewall of valve body (1); On the lower bottom cover of valve body (1), screw is arranged; In valve body (1) and in the bottom of back-up ring (4) piston (2) is arranged, piston (2) has center hole; Be with a piston rod (3) in piston (2) center hole, the lower end of piston rod (3) is fixed on the upper-end surface of coil component spring seat (9), between piston (2) and spring seat (9) pressure spring (8) is arranged; Bottom and uprighting spring seat (9) end face at spring seat (9) have a screw rod (7), and screw rod (7) is in the screw of valve body (1) lower bottom cover; Be fixed with rotatable handle (12) in the outer end of screw rod (7).
2. the pressure regulator valve of may command oil pressure according to claim 1 is characterized in that: the upper end of overflow hole (6) is taper, and overflow hole (6) lower end is a rectangular.
3. the pressure regulator valve of may command oil pressure according to claim 1 and 2 is characterized in that: seal ring (5) is arranged on the wall of piston (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206851495U CN201963624U (en) | 2010-12-17 | 2010-12-17 | Pressure adjusting valve capable of controlling oil pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206851495U CN201963624U (en) | 2010-12-17 | 2010-12-17 | Pressure adjusting valve capable of controlling oil pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963624U true CN201963624U (en) | 2011-09-07 |
Family
ID=44526159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206851495U Expired - Lifetime CN201963624U (en) | 2010-12-17 | 2010-12-17 | Pressure adjusting valve capable of controlling oil pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963624U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546201A (en) * | 2016-03-07 | 2016-05-04 | 布志刚 | Pressure valve with movable valve element |
| CN106224144A (en) * | 2016-08-30 | 2016-12-14 | 重庆万力联兴实业(集团)有限公司 | Electric fuel punp oil return noise reduction pressure regulator assembly |
| CN106224143A (en) * | 2016-08-30 | 2016-12-14 | 重庆万力联兴实业(集团)有限公司 | Avoid the fuel pump pressure regulator assembly that pressure is higher |
| CN110878777A (en) * | 2019-11-28 | 2020-03-13 | 宁波文泽机电技术开发有限公司 | Pressure control valve |
| CN113906827A (en) * | 2019-05-24 | 2022-01-07 | 赛默凯维X射线股份有限公司 | Pressure regulator for X-ray equipment |
-
2010
- 2010-12-17 CN CN2010206851495U patent/CN201963624U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546201A (en) * | 2016-03-07 | 2016-05-04 | 布志刚 | Pressure valve with movable valve element |
| CN105546201B (en) * | 2016-03-07 | 2018-04-27 | 广州联诚能源科技发展有限公司 | A kind of pressure valve with movable valve plug |
| CN106224144A (en) * | 2016-08-30 | 2016-12-14 | 重庆万力联兴实业(集团)有限公司 | Electric fuel punp oil return noise reduction pressure regulator assembly |
| CN106224143A (en) * | 2016-08-30 | 2016-12-14 | 重庆万力联兴实业(集团)有限公司 | Avoid the fuel pump pressure regulator assembly that pressure is higher |
| CN106224143B (en) * | 2016-08-30 | 2019-06-18 | 重庆万力联兴实业(集团)有限公司 | Avoid the fuel pump pressure regulation device assembly that pressure is higher |
| CN106224144B (en) * | 2016-08-30 | 2019-06-18 | 重庆万力联兴实业(集团)有限公司 | Electric fuel punp oil return noise reduction pressure regulation device assembly |
| CN113906827A (en) * | 2019-05-24 | 2022-01-07 | 赛默凯维X射线股份有限公司 | Pressure regulator for X-ray equipment |
| CN110878777A (en) * | 2019-11-28 | 2020-03-13 | 宁波文泽机电技术开发有限公司 | Pressure control valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201963624U (en) | Pressure adjusting valve capable of controlling oil pressure | |
| CN104564865B (en) | A kind of plug-in integrated hydraulic actuator | |
| CN102269235A (en) | Magneto-rheological fluid (MRF) damper based pressure fluctuation self-adjusting system and adjusting method | |
| CN202790885U (en) | Regulating valve | |
| CN201765910U (en) | Constant pressure oil supplement device | |
| CN205859278U (en) | A kind of direct-acting overflow valve | |
| CN201851726U (en) | Pilot overflow valve | |
| CN103322249A (en) | Direct-acting sequence valve | |
| CN202012716U (en) | Plunger type overflow device used for lubricating pump | |
| CN203743523U (en) | Adjustable one-way valve | |
| CN204082718U (en) | The pylon hydraulic system for lifting of steady variable-speed | |
| CN103953593B (en) | Hydraulic control device is pushed away for boats and ships adjustable pitch side | |
| CN203348653U (en) | Directly-operated type sequence valve | |
| CN203488472U (en) | Speed change valve | |
| CN202834255U (en) | Flow control valve | |
| CN201301205Y (en) | Control loop for descending of fork of industrial vehicle | |
| CN204592827U (en) | A kind of grease pressure regulator valve | |
| CN204783876U (en) | Binocular is filtered coal and is ground change loading hydraulic system immediately | |
| CN205173105U (en) | Governing valve | |
| CN201474892U (en) | Manual hydraulic pump | |
| CN203322136U (en) | High-power manually-adjusted hydraulic energy absorbing device for emergency protection of parking tower | |
| CN205117864U (en) | Multipurpose hydrovalve | |
| CN204942655U (en) | A kind of stomatal conductivity formula Decompression valves | |
| CN204345041U (en) | Based on the pressure controlled valve of magnetic flow liquid | |
| CN202320758U (en) | Electro-hydraulic lifting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |
|
| CX01 | Expiry of patent term |