CN202338486U - Low-pressure variable vane pump - Google Patents
Low-pressure variable vane pump Download PDFInfo
- Publication number
- CN202338486U CN202338486U CN2011204833162U CN201120483316U CN202338486U CN 202338486 U CN202338486 U CN 202338486U CN 2011204833162 U CN2011204833162 U CN 2011204833162U CN 201120483316 U CN201120483316 U CN 201120483316U CN 202338486 U CN202338486 U CN 202338486U
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- spring
- pressure
- adjusting
- pump
- variable vane
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Abstract
The utility model relates to a low-pressure variable vane pump, comprising a pump body and a pump cover. The pump body and the pump cover form a chamber, a stator and a rotor are arranged in the chamber, the stator is arranged at the outer circumference of the rotor, the rotor is provided with a blade, a pressure regulator is arranged above the chamber and comprises a spring seat, a pressure regulating spring, a pressure regulating valve core, a regulating screw and a locking nut, the spring seat is arranged on the stator, one end of the pressure regulating spring is arranged on the spring seat, the pressure regulating valve core is arranged at the other end of the pressure regulating spring, the regulating screw passes through a pressure regulating valve cover on the pump body and is in contact with the pressure regulating valve core, and the regulating screw goes out of one end of the pressure regulating valve cover and is connected with the locking nut. The low-pressure variable vane pump disclosed by the utility model has the advantages that the variable vane pump can obtain higher volume efficiency under different stop pressures, the volume efficiency can reach 80%-95%, and the work efficiency is effectively improved.
Description
Technical field
The utility model relates to a kind of vane pump, particularly relates to a kind of low pressure variable vane pump that has regulator.
Background technique
The regulator of the present formula of limiting the quantity of variable vane pump adopts a discharge capacity specification by the identical pressure adjusting spring of the highest cutoff pressure configuration, causes when lower cutoff pressure, and the volumetric efficiency of pump is very low, has only 50%～60%, has a strong impact on working efficiency.
The model utility content
The purpose of the utility model is in order to solve in the existing technology in the existing defective of vane pump, to provide a kind of low pressure variable vane pump to solve the problems referred to above.
To achieve these goals, the technological scheme of the utility model is following:
A kind of low pressure variable vane pump comprises the pump housing and pump cover, is formed with chamber in the pump housing and the pump cover; Be provided with stator and rotor in the chamber, stator is arranged at rotor periphery, and rotor is provided with blade; It is characterized in that the top of said chamber is provided with regulator, regulator comprises spring seat, pressure adjusting spring, adjusting pressuring valve core, adjusting screw and locking nut; Said spring seat is arranged on the stator, and an end of pressure adjusting spring is arranged on the spring seat, and adjusting pressuring valve core is arranged on the other end of pressure adjusting spring; The pressure regulation valve gap that adjusting screw is passed on the pump housing contacts with adjusting pressuring valve core, and the end that adjusting screw passes the pressure regulation valve gap is connected with locking nut.
Above-mentioned a kind of low pressure variable vane pump, it is characterized in that: the outer periphery of said adjusting pressuring valve core is equipped with seal ring, and seal ring contacts with the inwall of regulator.
Above-mentioned a kind of low pressure variable vane pump is characterized in that: said pressure adjusting spring comprises three kinds, and the specification of three kinds of pressure adjusting springs is respectively:
Steel wire diameter 5.2mm * middle footpath 19mm * spring height 48mm;
Steel wire diameter 5.6mm * middle footpath 19mm * spring height 48mm;
Steel wire diameter 6mm * middle footpath 19mm * spring height 48mm.
The beneficial effect that the utlity model has: make variable vane pump under different cutoff pressures, can both obtain higher volumetric efficiency, its volumetric efficiency can reach 80%-95%, has improved working efficiency effectively.
Description of drawings
Fig. 1 is the sectional view of the utility model;
Embodiment
For making structure characteristic of the utility model and the effect of being reached there are further understanding and understanding, cooperate detailed explanation, explain as follows in order to preferred embodiment and accompanying drawing:
Referring to Fig. 1, a kind of low pressure variable vane pump comprises the pump housing 100 and pump cover 200; Be formed with chamber 300 in the pump housing 100 and the pump cover 200; Be provided with stator 400 and rotor 500 in the chamber 300, stator 400 is arranged at rotor 500 peripheries, and rotor 500 is provided with blade 600.
The top of chamber 300 is provided with regulator 700; Regulator 700 comprises spring seat 710, pressure adjusting spring 720, adjusting pressuring valve core 730, adjusting screw 740 and locking nut 750; Spring seat 710 is arranged on the stator 400; One end of pressure adjusting spring 720 is arranged on the spring seat 710, and adjusting pressuring valve core 730 is arranged on the other end of pressure adjusting spring 720, and the outer periphery of adjusting pressuring valve core 730 is equipped with seal ring 731; Seal ring 731 contacts with the inwall of regulator 700; Make that adjusting pressuring valve core 730 sealabilities are better, the pressure regulation valve gap 760 that adjusting screw 740 is passed on the pump housing 100 contacts with adjusting pressuring valve core 730, and the end that adjusting screw 740 passes pressure regulation valve gap 760 is connected with locking nut 750.
When using; When the pressure in the chamber 300 is very big; Oil pressure just can upwards push away adjusting pressuring valve core 730; Know that adjusting pressuring valve core 730 touches till the adjusting screw 740,, can both obtain higher volumetric efficiency if can make variable vane pump under different cutoff pressures just change the pressure adjusting spring 720 of different model.
In sum; Be merely the preferred embodiment of the utility model; Be not to be used for limiting the scope that the utility model is implemented; All equalizations of doing according to the described shape of the utility model claim scope, structure, characteristic and spirit change and modify, and all should be included in the claim scope of the utility model.
Claims (3)
1. a low pressure variable vane pump comprises the pump housing and pump cover, is formed with chamber in the pump housing and the pump cover; Be provided with stator and rotor in the chamber, stator is arranged at rotor periphery, and rotor is provided with blade; It is characterized in that the top of said chamber is provided with regulator, regulator comprises spring seat, pressure adjusting spring, adjusting pressuring valve core, adjusting screw and locking nut; Said spring seat is arranged on the stator, and an end of pressure adjusting spring is arranged on the spring seat, and adjusting pressuring valve core is arranged on the other end of pressure adjusting spring; The pressure regulation valve gap that adjusting screw is passed on the pump housing contacts with adjusting pressuring valve core, and the end that adjusting screw passes the pressure regulation valve gap is connected with locking nut.
2. according to the said a kind of low pressure variable vane pump of claim 1, it is characterized in that: the outer periphery of said adjusting pressuring valve core is equipped with seal ring, and seal ring contacts with the inwall of regulator.
3. according to the said a kind of low pressure variable vane pump of claim 1, it is characterized in that: said pressure adjusting spring comprises three kinds, and the specification of three kinds of pressure adjusting springs is respectively:
Steel wire diameter 5.2mm * middle footpath 19mm * spring height 48mm;
Steel wire diameter 5.6mm * middle footpath 19mm * spring height 48mm;
Steel wire diameter 6mm * middle footpath 19mm * spring height 48mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204833162U CN202338486U (en) | 2011-11-28 | 2011-11-28 | Low-pressure variable vane pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204833162U CN202338486U (en) | 2011-11-28 | 2011-11-28 | Low-pressure variable vane pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202338486U true CN202338486U (en) | 2012-07-18 |
Family
ID=46487178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204833162U Expired - Fee Related CN202338486U (en) | 2011-11-28 | 2011-11-28 | Low-pressure variable vane pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202338486U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411121A (en) * | 2013-08-29 | 2013-11-27 | 长城汽车股份有限公司 | Variable fuel pump |
| CN110107498A (en) * | 2019-05-25 | 2019-08-09 | 浙江永灵液压机械有限公司 | A kind of variable vane pump |
-
2011
- 2011-11-28 CN CN2011204833162U patent/CN202338486U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411121A (en) * | 2013-08-29 | 2013-11-27 | 长城汽车股份有限公司 | Variable fuel pump |
| CN103411121B (en) * | 2013-08-29 | 2015-12-02 | 长城汽车股份有限公司 | Variable oil pump |
| CN110107498A (en) * | 2019-05-25 | 2019-08-09 | 浙江永灵液压机械有限公司 | A kind of variable vane pump |
| CN110107498B (en) * | 2019-05-25 | 2020-09-25 | 浙江永灵液压机械有限公司 | Variable vane pump |
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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 |
Granted publication date: 20120718 Termination date: 20151128 |