CN214064542U - Rotor type oil pump with outer rotor not prone to abrasion - Google Patents
Rotor type oil pump with outer rotor not prone to abrasion Download PDFInfo
- Publication number
- CN214064542U CN214064542U CN202022349468.5U CN202022349468U CN214064542U CN 214064542 U CN214064542 U CN 214064542U CN 202022349468 U CN202022349468 U CN 202022349468U CN 214064542 U CN214064542 U CN 214064542U
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- Prior art keywords
- rotor
- oil
- outer rotor
- external
- oil pump
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- 238000005299 abrasion Methods 0.000 title claims description 7
- 239000003921 oil Substances 0.000 abstract description 47
- 239000010721 machine oil Substances 0.000 abstract 1
- 239000010705 motor oil Substances 0.000 description 7
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Rotary Pumps (AREA)
Abstract
The utility model discloses a rotor formula oil pump that external rotor is difficult for wearing and tearing, including casing, external rotor, inner rotor and pump cover, the external rotor setting is in the casing, and the inner rotor setting is in the external rotor, and the inner rotor is connected with the rotor spindle, and the external disc of external rotor is equipped with the oil feed tank of circumference, is equipped with a plurality of radial oil grooves of leading on the external disc of external rotor. The utility model discloses a set up the oil feed tank and lead the oil groove on the outer disc of outer rotor, introduce the machine oil in the casing, lubricate and cool down the rotation of outer rotor, alleviate the wearing and tearing of external rotor and the condition such as cavitation, improve the life of oil pump.
Description
Technical Field
The utility model relates to an oil pump technical field, in particular to rotor formula oil pump that outer rotor is difficult for wearing and tearing.
Background
The rotor type oil pump comprises a shell, an inner rotor, an outer rotor, a pump cover and the like. The inner rotor is fixed on the rotor shaft by a key or a pin and is directly or indirectly driven by a crankshaft gear, the eccentricity at the centers of the inner rotor and the outer rotor is e, and the inner rotor drives the outer rotor to rotate together along the same direction. Generally, the number of teeth of the inner rotor is 1 less than that of the outer rotor, the inner rotor drives the outer rotor to rotate asynchronously so as to achieve oil absorption and oil discharge actions, in the prior art, the outer circular surface of the outer rotor is generally a smooth circular surface and is in close contact with the inner wall of the shell, friction loss is easily generated on the outer circular surface when the outer rotor rotates in the shell, and in addition, small holes are easily generated on the outer circular surface of the outer rotor due to high temperature, cavitation and other reasons, so that the performance and the service life of an engine oil pump are affected.
SUMMERY OF THE UTILITY MODEL
The utility model provides a rotor formula oil pump that external rotor is difficult for wearing and tearing, its advantage is the difficult wearing and tearing of external rotor, and life is longer.
The above object of the utility model is realized through following technical scheme, a rotor formula oil pump of difficult wearing and tearing of external rotor, including casing, external rotor, inner rotor and pump cover, the external rotor setting is in the casing, and the inner rotor setting is in the external rotor, and the inner rotor is connected with the rotor spindle, and the outer disc of external rotor is equipped with the fuel feeding tank of circumference, is equipped with a plurality of radial oil grooves of leading on the outer disc of external rotor.
Through the technical scheme, the oil guide groove can guide the engine oil in the shell into the oil supply groove, oil buns are formed between the outer circular surface of the outer rotor and the inner wall of the shell, the effect of lubricating and cooling is achieved on the rotation of the outer rotor, the conditions of abrasion, cavitation erosion and the like of the outer rotor are relieved, and the service life of the engine oil pump is prolonged.
The utility model discloses further set up to, the cross sectional shape of fuel feeding groove is semi-circular, the cross sectional shape of leading the oil groove is convex.
Through above-mentioned technical scheme, the outer rotor is difficult for producing the phenomenon of stress concentration near oil feed groove and oil guide groove, and the structural strength of outer rotor is not weakened.
The utility model discloses further set up to, a plurality of oil grooves evenly distributed of leading are on the outer disc of outer rotor.
Through above-mentioned technical scheme, the whole shape of outer rotor is central symmetry, and evenly distributed leads the oil groove and can not destroy the central symmetry of outer rotor, and the atress of outer rotor is even, and the oil feed of leading the oil groove is even.
To sum up, the beneficial effects of the utility model are that:
1. an oil supply groove and an oil guide groove are formed in the outer circular surface of the outer rotor, engine oil in the shell is introduced, the rotation of the outer rotor is lubricated and cooled, the conditions of abrasion, cavitation and the like of the outer rotor are relieved, and the service life of the engine oil pump is prolonged;
2. the cross sections of the oil supply groove and the oil guide groove are in circular arc shape in smooth transition, the outer rotor is not easy to generate stress concentration near the oil supply groove and the oil guide groove, and the structural strength of the outer rotor is not weakened.
Drawings
FIG. 1 is an exploded view of the structure of the present embodiment;
fig. 2 is a schematic structural view of the outer rotor in the present embodiment.
In the figure, 1, a housing; 2. an inner rotor; 3. an outer rotor; 31. an oil supply tank; 32. an oil guide groove; 4. a pump cover; 5. a rotor shaft.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
Example (b): referring to fig. 1-2, a rotor type oil pump with an outer rotor not prone to wear comprises a shell 1, an outer rotor 3, an inner rotor 2 and a pump cover 4, wherein the outer rotor 3 is arranged in the shell 1, the inner rotor 2 is arranged in the outer rotor 3, and the inner rotor 2 is connected with a rotor shaft 5. The designs of the housing 1, the inner rotor 2, the rotor shaft 5 and the pump cover 4 are all conventional designs, and are not specifically described herein. The outer circle surface of outer rotor 3 is equipped with circumferential oil supply groove 31, and the outer circle surface of outer rotor 3 is equipped with a plurality of radial oil guide grooves 32. The oil guide groove 32 can guide the engine oil in the housing 1 into the oil supply groove 31, and oil buns are formed between the outer circumferential surface of the outer rotor 3 and the inner wall of the housing 1, so that the rotation of the outer rotor 3 is lubricated and cooled, the abrasion, cavitation and the like of the outer rotor 3 are relieved, and the service life of the engine oil pump is prolonged.
The cross-sectional shape of the oil supply groove 31 is semicircular, and the cross-sectional shape of the oil guide groove 32 is circular arc. Outer rotor 3 is less likely to cause stress concentration near oil supply groove 31 and oil guide groove 32, and the structural strength of outer rotor 3 is not weakened.
The oil guide grooves 32 are uniformly distributed on the outer circumferential surface of the outer rotor 3. The whole shape of outer rotor 3 is central symmetry, and evenly distributed leads oil groove 32 can not destroy outer rotor 3's central symmetry, and outer rotor 3's atress is even, leads the oil feed of oil groove 32 even.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.
Claims (3)
1. The utility model provides a rotor formula oil pump that outer rotor is difficult for wearing and tearing, includes casing (1), outer rotor (3), inner rotor (2) and pump cover (4), and outer rotor (3) set up in casing (1), and inner rotor (2) set up in outer rotor (3), and inner rotor (2) are connected with rotor shaft (5), and its characterized in that, the outer disc of outer rotor (3) are equipped with circumferential oil supply tank (31), are equipped with a plurality of radial oil groove (32) of leading on the outer disc of outer rotor (3).
2. The rotor type oil pump with the external rotor not prone to abrasion according to claim 1, characterized in that the cross-sectional shape of the oil supply groove (31) is semicircular, and the cross-sectional shape of the oil guide groove (32) is circular arc.
3. The rotor type oil pump with the external rotor not prone to abrasion according to claim 1, characterized in that the oil guide grooves (32) are evenly distributed on the outer circular surface of the external rotor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022349468.5U CN214064542U (en) | 2020-10-20 | 2020-10-20 | Rotor type oil pump with outer rotor not prone to abrasion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022349468.5U CN214064542U (en) | 2020-10-20 | 2020-10-20 | Rotor type oil pump with outer rotor not prone to abrasion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214064542U true CN214064542U (en) | 2021-08-27 |
Family
ID=77397956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022349468.5U Active CN214064542U (en) | 2020-10-20 | 2020-10-20 | Rotor type oil pump with outer rotor not prone to abrasion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214064542U (en) |
-
2020
- 2020-10-20 CN CN202022349468.5U patent/CN214064542U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231228 Address after: Room 1104, 11th Floor, Building G, Shanxi International Financial Center, No. 426 South Zhonghuan Street, Xuefu Industrial Park, Shanxi Transformation and Comprehensive Reform Demonstration Zone, Taiyuan City, Shanxi Province, 030032 Patentee after: JinJulong (Shanxi Transformation Comprehensive Reform Demonstration Zone) Energy Technology Development Co.,Ltd. Address before: No. 58, Danyang Hubei Road, Chunxi street, Gaochun District, Nanjing, Jiangsu 211300 Patentee before: Nanjing Jiayuan Technology Equipment Manufacturing Co.,Ltd. |