CN205401290U - Energy storage ware return circuit is with guide's off -load overflow valve - Google Patents
Energy storage ware return circuit is with guide's off -load overflow valve Download PDFInfo
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- CN205401290U CN205401290U CN201620152771.7U CN201620152771U CN205401290U CN 205401290 U CN205401290 U CN 205401290U CN 201620152771 U CN201620152771 U CN 201620152771U CN 205401290 U CN205401290 U CN 205401290U
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Abstract
The utility model discloses an energy storage ware return circuit is with guide's off -load overflow valve, including main valve (21) and pilot valve (22), pilot valve (22) set up in the top of main valve (21), the integrated check valve structure that is provided with on the main valve body (12), check valve case (8) of check valve structure are parallelly connected with main valve core (11), and main valve oil inlet (24) of check valve oil inlet (9) and main valve (21) of check valve structure are linked together promptly, and the last port of the pore of producing oil (25) of check valve structure is established ties with the outer accuse of pilot valve (22) mouthful (20), the lower port and the series connection of accumulator oil inlet of the pore of producing oil (25) of check valve structure. The utility model discloses a going up at the main valve body and integratedly being provided with the check valve structure, realized the synthetic integrative structure of overflow valve and check valve, the operating pressure and the level pressure performance of whole overflow valve are guaranteed to reduction loss of pressure of system and pipeline leakage phenomenon, reduce spillway discharge change in the working process and the pressure oscillation that causes.
Description
Technical field
This utility model relates to a kind of hydraulic test, especially a kind of accumulator loop guide's lotus overflow valve, belongs to hydraulic valve technical field.
Background technology
Overflow valve has multiple use, mainly overflow remove the unnecessary fluid of system while make the charge oil pressure of pump be adjusted and keep substantially constant, overflow valve is divided into direct acting type and type pilot two kinds, current widely used pilot operated compound relief valve by its structural principle, is generally made up of pilot valve and main valve.Pilot valve is in order to control to make the unlatching pressure of guide's fluid flow, and main valve plug is for controlling the overflow of hydraulic system oil circuit.But in multi power source loop, owing to needs accumulator is as auxiliary power source, so when executive component is failure to actuate, pump can not be made to pass through overflow valve lotus as common loop at once, but at the oil-out of pump, one check valve to be installed, the oil-out of check valve is connected with the outside control mouth of system overflow valve, by the check valve oil-out pressure outer governor pressure as overflow valve, when executive component does not work, pump is to accumulator topping up, accumulator stores energy, when energy storage pressure reaches a certain setting, system overflow valve is just opened, now hydraulic pump and accumulator are separated by this check valve, pump is in lotus state.When executive component action, pump and accumulator, simultaneously to executive component fuel feeding, reach the purpose of rapid movement.
And existing multi power source loop overflow valve and check valve connect as two Hydraulic Elements pipelines, have that operating pressure is low, level pressure poor performance, the pressure oscillation caused because of spillway discharge change in work process is greatly, system pressure is increased beyond setting pressure, build-up of pressure overshoot, the damage of the pressure overshoot leakage easily caused by pipe joint place and parts, the dynamic property of influential system, the lotus that accumulator maximum pressure controls overflow valve is pressure retarded, it is easy to make pump and accumulator damage etc..
Utility model content
The technical problems to be solved in the utility model is: provide a kind of accumulator loop guide's lotus overflow valve, one-way valve structures is directly integrated and is arranged on main valve, ensure operating pressure and the level pressure performance of whole overflow valve, reduce spillway discharge change in work process and the pressure oscillation that causes.
The purpose of this utility model is achieved through the following technical solutions:
A kind of accumulator loop guide's lotus overflow valve, including main valve and pilot valve, pilot valve is arranged on the top of main valve, described main valve is mainly by main valve body be arranged on the main valve plug within main valve body and main valve plug spring forms, described pilot valve is mainly by guide valve blocks and be arranged on the pilot poppet valve within guide valve blocks, guide pin bushing and plunger composition, guide valve blocks is provided with outside control mouth, integrally disposed on main valve body have one-way valve structures, the inner elements of check valve of described one-way valve structures is in parallel with main valve plug, namely the check valve oil-in of one-way valve structures is connected with the main valve oil-in of main valve, the upper port in fuel-displaced duct of one-way valve structures is connected with the outside control mouth of pilot valve, the lower port in the fuel-displaced duct of one-way valve structures is connected with accumulator oil-in.
Preferably, described main valve oil-in is arranged on the shaft core position of main valve body, and check valve oil-in is perpendicular to main valve oil-in.This structure makes check valve oil-in be easy to processing and fabricating, facilitates the installation of inner elements of check valve simultaneously.
Preferably, described inner elements of check valve adopts check valve end cap to promote one-way valve spring to be pressed on check valve oil-in position, blocks check valve oil-in and fuel-displaced duct during inner elements of check valve Guan Bi.Employing one-way valve spring compresses, simple in construction, and the one-way valve spring that simultaneously can change different model can regulate the operating pressure of check valve.
Preferably, the right-hand member of described plunger is provided with positive stop lug boss, for limiting the limit on the left position that plunger moves in guide pin bushing.This simple in construction, can ensure that the maximum open amount of pilot poppet valve by this positive stop lug boss.
Preferably, the left end of described pilot poppet valve is provided with pressure spring, and the left end of pressure spring is arranged on slide block, and the left position place of slide block is provided with adjustment screw, and the left end regulating screw is provided with adjusting handle.This structure is conveniently adjusted the pressure of pilot poppet valve, simple in construction, it is simple to processing and fabricating.
The beneficial effects of the utility model: compared with prior art, this utility model has one-way valve structures by integrally disposed on main valve body, achieve overflow valve and the incorporated structure of check valve, reduce system pressure loss and pipeline leakage phenomenon, ensure operating pressure and the level pressure performance of whole overflow valve, reduce spillway discharge change in work process and the pressure oscillation that causes.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
In figure: 1, pilot poppet valve；2, guide pin bushing；3, plunger；4, pilot valve right end cap；5, main valve plug spring；6, one-way valve spring；7, check valve end cap；8, inner elements of check valve；9, check valve oil-in；10, damping hole；11, main valve plug；12, main valve body；13, screw is regulated；14, adjusting handle；15, pilot valve left end cap；16, guide valve blocks；17, pressure spring；18, pilot valve oil return opening；19, pilot valve oil-in；20, outside control mouth；21, main valve；22, pilot valve；23, main valve oil return duct；24, main valve oil-in；25, fuel-displaced duct；26, slide block.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, utility model is described further:
A kind of accumulator loop guide's lotus overflow valve, including main valve 21 and pilot valve 22, pilot valve 22 is arranged on the top of main valve 21.
Described main valve 21 is main by main valve body 12 be arranged on the main valve plug 11 within main valve body 12 and main valve plug spring 5 forms, main valve body 12 is provided with main valve oil return duct 23 and main valve oil-in 24, the middle part in described main valve oil return duct 23 is communicated to main valve oil-in 24 by a cross-drilled hole, described main valve plug 11 is arranged on the cavity on main valve oil-in 24 top, main valve plug 11 is internally provided with main valve plug spring 5, the lower end of main valve plug spring 5 is arranged on the inner chamber bottom surface of main valve plug 11, the upper end of main valve plug spring 5 is resisted against the lower surface of guide valve blocks 16, when main valve plug 11 closes, block main valve oil return duct 23 and main valve oil-in 24.Main valve plug 11 is provided with damping hole 10.
Described pilot valve 22 is mainly made up of guide valve blocks 16, pilot poppet valve 1, guide pin bushing 2 and plunger 3, is provided with a horizontal cavity in guide valve blocks 16, is additionally provided with pilot valve oil return opening 18, pilot valve oil-in 19 and outside control mouth 20 on guide valve blocks 16 simultaneously.Described pilot valve oil return opening 18 connects with main valve oil return duct 23, and described pilot valve oil-in 19 is connected with main valve oil-in 24 by damping hole 10.Described pilot poppet valve 1 and guide pin bushing 2 are sequentially arranged in the horizontal cavity of guide valve blocks 16 from left to right, the tapering of described pilot poppet valve 1 coordinates with guide pin bushing 2, described plunger 3 is arranged on the inside of guide pin bushing 2 and this plunger 3 can open pilot poppet valve 1 to left movement under the effect of oil pressure, is internally provided with chamber b at guide pin bushing 2.Outside control mouth 20 connects the chamber c of guide valve blocks 16.
The right-hand member of above-mentioned plunger 3 is provided with positive stop lug boss, for limiting the limit on the left position that plunger 3 moves in guide pin bushing 2.
Integrally disposed on main valve body 12 have one-way valve structures, described one-way valve structures includes check valve oil-in 9, fuel-displaced duct 25 and inner elements of check valve 8, the inner elements of check valve 8 of described one-way valve structures is in parallel with main valve plug 11, namely the check valve oil-in 9 of one-way valve structures is connected with the main valve oil-in 24 of main valve 21, the upper port in the fuel-displaced duct 25 of one-way valve structures is connected with the outside control mouth 20 of pilot valve 22, and the lower port in the fuel-displaced duct 25 of one-way valve structures is connected with accumulator oil-in.
In the present embodiment, described main valve oil-in 24 is arranged on the shaft core position of main valve body 12, and check valve oil-in 9 is perpendicular to main valve oil-in 24.Further, described inner elements of check valve 8 adopts check valve end cap 7 to promote one-way valve spring 6 to be pressed on check valve oil-in 9 position, blocks check valve oil-in 9 and fuel-displaced duct 25 when inner elements of check valve 8 closes.
The left end of described pilot poppet valve 1 is provided with pressure spring 17, and the left end of pressure spring 17 is arranged on slide block 26, and the left position place of slide block 26 is provided with adjustment screw 13, and the left end regulating screw 13 is provided with adjusting handle 14.
In the present embodiment, the left end of described guide valve blocks 16 arranges pilot valve left end cap 15, and right-hand member is provided with pilot valve right end cap 4.Further, check valve end cap 7 and pilot valve right end cap 4 adopt the structure of screw plug, adopt the structure of screw plug, facilitate guide valve blocks 16 and the processing of main valve body 12, and screw plug is by being easy to again ensure the reliability of sealing simultaneously.
Operation principle of the present utility model is as follows: during real work, fluid enters from main valve oil-in 24, inner elements of check valve 8 is opened on the one hand through check valve oil-in 9, fluid is from the lower end in fuel-displaced duct 25 to accumulator topping up, and fluid also enters chamber c chamber from the upper end in fuel-displaced duct 25 through outside control mouth 20 and acts on plunger 3 simultaneously.Fluid flows into the chamber b within guide pin bushing 2 through pilot valve oil-in 19 after the chamber a within damping hole 10 arrives main valve plug 11 on the other hand.Now pilot poppet valve 1 and main valve plug 11 are all in closed mode, and the pressure of chamber a, chamber b and chamber c is equal to pump discharge pressure.Along with pump makes oil pressure in accumulator rise to accumulator topping up, when reaching accumulator pressure upper limit, the fluid at chamber c place promotes plunger 3 to act on pilot poppet valve 1, meanwhile the oil pressure of guide pin bushing 2 inner cavity chamber b acts also on pilot poppet valve 1, and pilot poppet valve 1 overcomes the spring force of pressure spring 17, opens pilot poppet valve 1, opening amount strengthens, main valve plug 11 is opened in succession, and inner elements of check valve 8 is closed, and pump starts lotus.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, it is impossible to assert that of the present utility model being embodied as is confined to these explanations.For this utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, it is also possible to make some simple deduction or replace, protection domain of the present utility model all should be considered as belonging to.
Claims (5)
- null1. accumulator loop guide's lotus overflow valve，Including main valve (21) and pilot valve (22)，Pilot valve (22) is arranged on the top of main valve (21)，Described main valve (21) is main by main valve body (12) be arranged on the main valve plug (11) inside main valve body (12) and main valve plug spring (5) forms，Described pilot valve (22) is mainly by guide valve blocks (16) and the pilot poppet valve (1) being arranged on guide valve blocks (16) inside、Guide pin bushing (2) and plunger (3) composition，Guide valve blocks (16) is provided with outside control mouth (20)，It is characterized in that: integrally disposed on main valve body (12) have one-way valve structures，The inner elements of check valve (8) of described one-way valve structures is in parallel with main valve plug (11)，Namely the check valve oil-in (9) of one-way valve structures is connected with the main valve oil-in (24) of main valve (21)，The upper port in the fuel-displaced duct (25) of one-way valve structures is connected with the outside control mouth (20) of pilot valve (22)，The lower port in the fuel-displaced duct (25) of one-way valve structures is connected with accumulator oil-in.
- 2. a kind of accumulator loop guide's lotus overflow valve according to claim 1, it is characterised in that: described main valve oil-in (24) is arranged on the shaft core position of main valve body (12), and check valve oil-in (9) is perpendicular to main valve oil-in (24).
- 3. a kind of accumulator loop guide's lotus overflow valve according to claim 2, it is characterized in that: described inner elements of check valve (8) adopts check valve end cap (7) to promote one-way valve spring (6) to be pressed on check valve oil-in (9) position, blocks check valve oil-in (9) and fuel-displaced duct (25) during inner elements of check valve (8) Guan Bi.
- 4. a kind of accumulator loop guide's lotus overflow valve according to claim 1, it is characterised in that: the right-hand member of described plunger (3) is provided with positive stop lug boss, is used for limiting the limit on the left position that plunger (3) moves in guide pin bushing (2).
- 5. a kind of accumulator loop guide's lotus overflow valve according to claim 1, it is characterized in that: the left end of described pilot poppet valve (1) is provided with pressure spring (17), the left end of pressure spring (17) is arranged on slide block (26), the left position place of slide block (26) is provided with adjustment screw (13), and the left end regulating screw (13) is provided with adjusting handle (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620152771.7U CN205401290U (en) | 2016-03-01 | 2016-03-01 | Energy storage ware return circuit is with guide's off -load overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620152771.7U CN205401290U (en) | 2016-03-01 | 2016-03-01 | Energy storage ware return circuit is with guide's off -load overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205401290U true CN205401290U (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620152771.7U Expired - Fee Related CN205401290U (en) | 2016-03-01 | 2016-03-01 | Energy storage ware return circuit is with guide's off -load overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205401290U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461524A (en) * | 2017-07-19 | 2017-12-12 | 李国强 | A kind of fountain pressure valve |
| CN108561613A (en) * | 2018-05-13 | 2018-09-21 | 华东交通大学 | A kind of MR valve with rewind circuit |
| CN109162978A (en) * | 2018-10-22 | 2019-01-08 | 陈少同 | Guide type valve |
| CN111005906A (en) * | 2019-12-31 | 2020-04-14 | 华中科技大学无锡研究院 | Ultrahigh-pressure large-flow high-water-base unloading valve |
| CN111315991A (en) * | 2019-03-28 | 2020-06-19 | 深圳市大疆创新科技有限公司 | Pump device and agricultural plant protection machine |
| CN112228622A (en) * | 2020-11-02 | 2021-01-15 | 扬中市众成管路配件有限公司 | Pilot-operated control type pipeline instrument root valve |
-
2016
- 2016-03-01 CN CN201620152771.7U patent/CN205401290U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461524A (en) * | 2017-07-19 | 2017-12-12 | 李国强 | A kind of fountain pressure valve |
| CN108561613A (en) * | 2018-05-13 | 2018-09-21 | 华东交通大学 | A kind of MR valve with rewind circuit |
| CN108561613B (en) * | 2018-05-13 | 2023-10-13 | 华东交通大学 | Magnetorheological valve with quick return loop |
| CN109162978A (en) * | 2018-10-22 | 2019-01-08 | 陈少同 | Guide type valve |
| CN111315991A (en) * | 2019-03-28 | 2020-06-19 | 深圳市大疆创新科技有限公司 | Pump device and agricultural plant protection machine |
| WO2020191730A1 (en) * | 2019-03-28 | 2020-10-01 | 深圳市大疆创新科技有限公司 | Pump device and agricultural plant protection machine |
| CN111315991B (en) * | 2019-03-28 | 2022-07-22 | 深圳市大疆创新科技有限公司 | Pump device and agricultural plant protection machine |
| CN111005906A (en) * | 2019-12-31 | 2020-04-14 | 华中科技大学无锡研究院 | Ultrahigh-pressure large-flow high-water-base unloading valve |
| CN112228622A (en) * | 2020-11-02 | 2021-01-15 | 扬中市众成管路配件有限公司 | Pilot-operated control type pipeline instrument root valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 |