CN201121581Y - High pressure-resistant anti-overloading gear pump - Google Patents
High pressure-resistant anti-overloading gear pump Download PDFInfo
- Publication number
- CN201121581Y CN201121581Y CNU2007201029619U CN200720102961U CN201121581Y CN 201121581 Y CN201121581 Y CN 201121581Y CN U2007201029619 U CNU2007201029619 U CN U2007201029619U CN 200720102961 U CN200720102961 U CN 200720102961U CN 201121581 Y CN201121581 Y CN 201121581Y
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- CN
- China
- Prior art keywords
- pump
- gear wheel
- oil
- utility
- model
- 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 - Fee Related
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Abstract
The utility model relates to a gear wheel pump which can tolerate high pressure and resist overloading, and is composed of a pump cover, a back pump cover, a pump body, a drive gear wheel and a driven gear wheel arranged in the pump body as well as an oil inlet and an oil outlet communicated with the pump body. The gear wheel pump is characterized in that: the oil outlet and the oil inlet are respectively arranged on the back pump cover; the oil outlet and the oil inlet are respectively communicated with the pump body through an oil-out cavity channel and an oil-in cavity channel; counterpressure floating lateral plates are arranged on the front and back end faces of the drive gear wheel and the driven gear wheel in the pump body. The gear wheel pump provided by the utility model can effectively improve and keep the volumetric efficiency of the gear wheel pump and prolong the service life of the gear wheel pump. The strength, rigidity, hardness and material, etc. of all the parts of the gear wheel pump of the utility model are designed according to the requirement of a gear wheel pump with the 30 MPa pressure grade, the anti-overloading capability and service life of the gear wheel pump are all improved.
Description
Technical field
The utility model relates to a kind of high pressure resistant, anti-overload gear pump.
Background technique
What present widely used CBT-E5 gear pump adopted is axle sleeve, thicker big, bearing is top loading also, do not have unsteady characteristics, can not reach clearance automatic compensation and pressure balance axial and radially, the intensity of the component that it adopted, rigidity etc. can not be born the use of 30Mpa pressure rating, the working life of these factor affecting gear pumps all according to the design of 16Mpa pressure rating.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of gear pump that has high pressure resistant, anti-overload performance and can effectively increase the service life.
The utility model is adopted down following technological scheme:
The utility model by front pump cover, rear pump cover, the pump housing, be arranged on driving gear in the pump housing and driven gear and and the pump housing filler opening and the oil outlet that are connected, it is characterized in that oil outlet and filler opening are separately positioned on the rear pump cover, oil outlet and filler opening are connected with the pump housing by fuel-displaced cavity and oil-feed cavity respectively, and former and later two end faces of pump housing inner pinion gear and driven gear are provided with the back-pressure floating side plate.
Be provided with profiled seal spare between the utility model floating side plate and the front pump cover and between floating side plate and the rear pump cover.
The utility model good effect is as follows: what the utility model adopted is the side plate that fluctuates that is made of double-layer metal material, bearing is contained in up and down on the pump cover, characteristics with floating compensation, can reach according to different pressures and carry out axial clearance compensation and radial pressure balance automatically automatically, can effectively improve and keep the volumetric efficiency of gear pump, prolonged the working life of gear pump, the utility model has adopted the high temperature resistance of rubber-plastics material, anti-oil, aging-resistant figure-three Sealing is as profiled seal spare, the high low pressure chamber is let out in not, extended the working life of gear pump greatly, the intensity of all component of the utility model, rigidity, hardness, materials etc. all are that the gear pump according to the 30Mpa pressure rating requires to design, and have improved the anti-overload capacity and the working life of gear pump.
Description of drawings
Accompanying drawing 1 is the utility model structural representation
Accompanying drawing 2 is the utility model turnover oil channel structure schematic representation
Accompanying drawing 3 is imported and exported the surface structure schematic representation for the utility model
Accompanying drawing 4 is the utility model filler opening structural representation
Accompanying drawing 5 is the utility model oil outlet structural representation
Accompanying drawing 6 is the utility model floating side plate structural representation
Accompanying drawing 7 is the utility model rear pump cover structural representation
In the accompanying drawings: 1 driving gear, 2 front pump covers, 3 sliding bearings, 4 pins, 5 pump housings, 6 seal rings, 7 profiled seal spares, 8 rear pump covers, 9 driven gears, 10 floating side plates, 11 oil sealings, 12 jump rings, 13 oil outlets, 14 filler openings, 15 fuel-displaced cavities, 16 oil-feed cavities.
Embodiment
Shown in accompanying drawing 1,2,4,5, the utility model comprises front pump cover 2, rear pump cover 8, the pump housing 5, be arranged on driving gear 1 in the pump housing 5 and driven gear 9 and and the pump housing 5 filler opening 14 and the oil outlet 13 that are connected.
Shown in accompanying drawing 2,3, the utility model oil outlet 13 and filler opening 14 are separately positioned on the rear pump cover 8, oil outlet 13 and filler opening 14 are connected with the pump housing 5 by fuel-displaced cavity 15 and oil-feed cavity 16 respectively, shown in accompanying drawing 1,2, former and later two end faces of the pump housing 5 inner pinion gears 1 and driven gear 9 are provided with back-pressure floating side plate 10.Shown in accompanying drawing 6,7, be provided with profiled seal spare 7 between the utility model floating side plate 10 and the front pump cover 2 and between floating side plate 10 and the rear pump cover 8.Accompanying drawing 6 is the utility model floating side plate structural representation, and as shown in Figure 7, the utility model has adopted the high temperature resistance of rubber-plastics material, anti-oil, aging-resistant figure-three Sealing as profiled seal spare 7.
Shown in accompanying drawing 1,2, the utility model drives driving gear 1 rotation by prime mover, drive driven gear 9 rotations again by driving gear 1, at this moment will form negative pressure at oil-feed cavity 16 and filler opening 14, thereby oil is sucked oil-feed cavity 16 from filler opening 14, in the cavity volume that the between cog of arrival main driven gear 1,9 and upper and lower floating side plate 10 form, the oil of between cog is by the rotation of gear, scraped fuel-displaced cavity 15 and oil outlet 13 places by inwall, extrude, form pressure oil along the pump housing 5.Simultaneously, shown in accompanying drawing 2,7, be provided with profiled seal spare 7 and seal ring 6 between the utility model floating side plate 10 and the front pump cover 2 and between floating side plate 10 and the rear pump cover 8, accompanying drawing 6 is the utility model floating side plate structural representation, pressure oil enters the chamber back-pressure floating side plate 10 that seal ring 6, profiled seal spare 7 and floating side plate 10 form from fuel-displaced cavity 15, make itself and main driven gear 1,9 end faces press tighter and tighter, thereby reduce oil from the interior leakage between tooth and the tooth, reach automatic compensating action.
Claims (2)
1, a kind of high pressure resistant, anti-overload gear pump, it comprises front pump cover (2), rear pump cover (8), the pump housing (5), be arranged on driving gear (1) and driven gear (9) in the pump housing (5), and and the pump housing (5) filler opening (14) and the oil outlet (13) that are connected, it is characterized in that oil outlet (13) and filler opening (14) are separately positioned on the rear pump cover (8), oil outlet (13) and filler opening (14) are connected with the pump housing (5) by fuel-displaced cavity (15) and oil-feed cavity (16) respectively, and former and later two end faces of the pump housing (5) inner pinion gear (1) and driven gear (9) are provided with back-pressure floating side plate (10).
2, a kind of high pressure resistant, anti-overload gear pump according to claim 1 is characterized in that being provided with profiled seal spare (7) between floating side plate (10) and the front pump cover (2) and between floating side plate (10) and the rear pump cover (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201029619U CN201121581Y (en) | 2007-11-02 | 2007-11-02 | High pressure-resistant anti-overloading gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201029619U CN201121581Y (en) | 2007-11-02 | 2007-11-02 | High pressure-resistant anti-overloading gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201121581Y true CN201121581Y (en) | 2008-09-24 |
Family
ID=40008807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201029619U Expired - Fee Related CN201121581Y (en) | 2007-11-02 | 2007-11-02 | High pressure-resistant anti-overloading gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201121581Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793249A (en) * | 2008-12-09 | 2010-08-04 | 罗伯特·博世有限公司 | Gear pump |
| CN101968052A (en) * | 2010-11-12 | 2011-02-09 | 合肥长源液压件有限责任公司 | High-pressure gear oil pump |
| CN102146915A (en) * | 2011-04-13 | 2011-08-10 | 徐州科源液压有限公司 | High-pressure gear pump without fixed side plate |
| CN106894990A (en) * | 2015-12-21 | 2017-06-27 | 中国科学院沈阳自动化研究所 | A kind of gear pump of balanced radial force |
-
2007
- 2007-11-02 CN CNU2007201029619U patent/CN201121581Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793249A (en) * | 2008-12-09 | 2010-08-04 | 罗伯特·博世有限公司 | Gear pump |
| CN101968052A (en) * | 2010-11-12 | 2011-02-09 | 合肥长源液压件有限责任公司 | High-pressure gear oil pump |
| CN102146915A (en) * | 2011-04-13 | 2011-08-10 | 徐州科源液压有限公司 | High-pressure gear pump without fixed side plate |
| CN106894990A (en) * | 2015-12-21 | 2017-06-27 | 中国科学院沈阳自动化研究所 | A kind of gear pump of balanced radial force |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |