CN102997022B - Self-lubricating structure of oil pump - Google Patents
Self-lubricating structure of oil pump Download PDFInfo
- Publication number
- CN102997022B CN102997022B CN201210482493.8A CN201210482493A CN102997022B CN 102997022 B CN102997022 B CN 102997022B CN 201210482493 A CN201210482493 A CN 201210482493A CN 102997022 B CN102997022 B CN 102997022B
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- CN
- China
- Prior art keywords
- oil pump
- oil
- pump shaft
- self
- rotor
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- 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.)
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Links
- 239000003921 oil Substances 0.000 claims description 74
- 239000010721 machine oil Substances 0.000 claims description 32
- 239000000314 lubricant Substances 0.000 claims description 8
- 239000012208 gear oil Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 3
- 239000010705 motor oil Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
Abstract
The invention relates to a self-lubricating structure of an oil pump, which comprises an inner rotor, three grooves, a first oil channel and a second oil channel, wherein the inner rotor is arranged in an oil pump body and an oil pump shaft penetrates through the inner rotor; the three grooves are uniformly arranged in the periphery of the inner contact surface of the inner rotor and the oil pump shaft; one end of the second oil channel is connected with the first oil channel, the other end of the second oil channel is used for supplying oil to the three grooves, and thus lubrication is carried out between the inner rotor and the oil pump shaft. The lubrication between the oil pump rotor shaft and the inner rotor is ensured when a motor carries out large torque transferring, therefore the reliable lubrication between the oil pump rotor shaft and the inner rotor is ensured to play a load shedding effect when the motor carries out large torque transferring, and the oil pump is effectively protected from being damaged.
Description
Technical field
The present invention relates to a kind of oil pump of motor car engine, particularly relate to a kind of reliable voluntarily lubricating structure of oil pump.
Background technique
Oil pump is one of most crucial component of engine lubrication system; in whole engine lubrication system, there is conclusive effect; it provides the machine oil of enough pressure and flow for whole motor; lubricant oil is constantly circulated in lubrication system; to ensure that each friction member is lubricated fully, the pressure part that protection is relevant is not damaged.
The layout of current engine lubrication system oil pump mainly contains by bent axle Direct driver with by chain transmission two kinds of structures, oil pump due to bent axle Direct driver is arranged in cylinder body outer end, not only higher to sealing requirement, simultaneously owing to connecing in succession with crankshaft straight, drive area larger, the shortcomings such as engine friction horsepower loss is larger, engine oil pump is arranged and is gradually tended to Chain conveyer.For Chain conveyer oil pump, chain gear is connected as a single entity by Spielpassung and oil pump bearing, particularly for diesel engine or agricultural machine, when needing the moment of torsion of transmission larger, machine oil pump shaft and internal rotor, can not be lubricated reliably between chain gear and machine oil pump shaft, the fricative heat in this place is also higher.If worked long hours, aggravation of not only wearing and tearing, and also the abrasive dust produced enters motor, seriously can cause the Bearing score of motor even the scrapping of motor.
Summary of the invention
The object of the present invention is to provide a kind of self-lubricating structure of oil pump, by rotor of engine oil pump axle and internal rotor interference fit, uniform 3 grooves around internal rotor, the rotor shaft inner radial be connected with sprocket wheel distributes an annular oil storage tank.The lubricant oil of rotor shaft annular oil storage tank is to chain gear reliably pressure lubrication.The present invention solve well driving engine moment larger time, ensure that the proper lubrication of machine oil pump shaft and internal rotor, rotor of engine oil pump axle and chain gear.Drain charge under improving oil pump high pressure is played a very good protection simultaneously.
Concrete technological scheme is as follows:
A self-lubricating structure for oil pump, comprises internal rotor, groove, the first oil duct, the second oil duct, and wherein, described internal rotor is arranged in oil pump body, and is passed by machine oil pump shaft; Described groove is 3, is evenly arranged on the periphery of the interior surface of contact that internal rotor and oil pump shaft are touched; Described second oil duct one end connects the first oil duct, and the other end to 3 groove fuel feeding, thus can lubricate between internal rotor and machine oil pump shaft.
Further, also comprise chain gear and cross key, described machine oil pump shaft and chain gear are driven through cross key transmission.
Further, also comprise the 3rd oil duct, lubricant oil is lubricated by the driving structure cross key of the 3rd oil duct pair and chain gear and machine oil pump shaft, thus lubricates between chain gear and machine oil pump shaft.
Further, described 3rd oil duct comprises the first annular oil storage tank being arranged on and laterally being formed along machine oil pump shaft.
Further, described annular oil storage tank its be positioned on the machine oil pump shaft inside cross key.
Further, described 3rd oil duct also comprises the second annular oil storage tank formed between chain gear and cross key, and described first annular oil storage tank and the second annular oil storage tank are by the space UNICOM between cross key and machine oil pump shaft.
Further, machine oil pump shaft and internal rotor interference fit.
Further, the end oil duct of machine oil pump shaft passes through steel ball sealing.
Further, the lubricant oil of described annular oil storage tank carries out pressure lubrication to chain gear.
Further, also comprise external rotor, described external rotor is arranged in oil pump body, outside internal rotor.
Compared with currently available technology, the present invention, when driving engine moment is larger, ensure that the proper lubrication of machine oil pump shaft and internal rotor, rotor of engine oil pump axle and chain gear.Drain charge under improving oil pump high pressure is played a very good protection simultaneously.
Specifically:
When 1, effectively ensure that motor high pulling torque transmits, the proper lubrication of rotor of engine oil pump axle and internal rotor.
When 2, effectively ensure that motor high pulling torque transmits, the proper lubrication of rotor of engine oil pump axle and chain gear.
3, serve the effect of drain charge, effectively protect the damage that oil pump occurs.
Accompanying drawing explanation
Fig. 1 is decomposition view of the present invention
Fig. 2 is plan view of the present invention
Fig. 3 is section A-A schematic diagram of the present invention
Fig. 4 is section B-B schematic diagram of the present invention
Fig. 5 is cross section of the present invention C-C schematic diagram
Fig. 6 is that the present invention checks details A schematic diagram
Fig. 7 is that the present invention checks details B schematic diagram
In figure:
1-oil pump body, 2-cross key
3-chain gear, 4-machine oil pump shaft
5-internal rotor, 6-external rotor
7-oil duct, 1 8-steel ball
9-oil duct, 2 10-oil duct 3
11-groove
Embodiment
Describe the present invention with reference to the accompanying drawings below, it is a kind of preferred embodiment in numerous embodiments of the present invention.
The key point of the present embodiment is as follows:
1, rotor of engine oil pump axle and internal rotor interference fit, uniform 3 grooves around internal rotor.
2, the rotor shaft inner radial be connected with sprocket wheel distributes an annular oil storage tank.
3, the lubricant oil of rotor shaft annular oil storage tank is to chain gear reliably pressure lubrication.
With reference to accompanying drawing, the present embodiment is rotor-type oil pump, primarily of compositions such as oil pump body (1), machine oil pump shaft (4), internal rotor (5), external rotors (6).Machine oil pump shaft (4) and chain gear (3) are driven through cross key (2) and transmit.
Current machine oil pump shaft and internal rotor (5), can not be lubricated reliably between chain gear (3) and machine oil pump shaft (4), the fricative heat in this place is also higher.For ensureing its reliably working, internal rotor (5) periphery uniform Design 3 grooves (11), lubricant oil enters groove (11), is reliably lubricated internal rotor (5) by oil duct 2 (9).Lubricant oil passes through oil duct 3 (10) to driving structure cross key (2) proper lubrication with chain gear and (3) and machine oil pump shaft (4) simultaneously.The end oil duct of machine oil pump shaft (4) is by steel ball (8) sealing.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the various improvement that method of the present invention is conceived and technological scheme is carried out; or directly apply to other occasion, all within protection scope of the present invention without improving.
Claims (6)
1. a self-lubricating structure for oil pump, is characterized in that, comprises internal rotor, groove, the first oil duct, the second oil duct, the 3rd oil duct, chain gear, cross key, wherein,
Described internal rotor is arranged in oil pump body, and is passed by machine oil pump shaft;
Described groove is 3, is evenly arranged on the periphery of the interior surface of contact that internal rotor and oil pump shaft are touched;
Described second oil duct one end connects the first oil duct, and the other end to 3 groove fuel feeding, thus can lubricate between internal rotor and machine oil pump shaft;
Lubricant oil is lubricated by the driving structure cross key of the 3rd oil duct pair and chain gear and machine oil pump shaft, thus lubricates between chain gear and machine oil pump shaft;
Described machine oil pump shaft and chain gear are driven through cross key transmission;
Described 3rd oil duct comprises the first annular oil storage tank being arranged on and laterally being formed along machine oil pump shaft.
2. the self-lubricating structure of oil pump as claimed in claim 1, is characterized in that, described first annular oil storage tank its be positioned on the machine oil pump shaft inside cross key.
3. the self-lubricating structure of oil pump as claimed in claim 1 or 2, it is characterized in that, described 3rd oil duct also comprises the second annular oil storage tank formed between chain gear and cross key, and described first annular oil storage tank and the second annular oil storage tank are by the space UNICOM between cross key and machine oil pump shaft.
4. the self-lubricating structure of oil pump as claimed in claim 3, is characterized in that, machine oil pump shaft and internal rotor interference fit.
5. the self-lubricating structure of oil pump as claimed in claim 4, it is characterized in that, the end oil duct of machine oil pump shaft passes through steel ball sealing.
6. the self-lubricating structure of oil pump as claimed in claim 3, it is characterized in that, also comprise external rotor, described external rotor is arranged in oil pump body, outside internal rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210482493.8A CN102997022B (en) | 2012-11-23 | 2012-11-23 | Self-lubricating structure of oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210482493.8A CN102997022B (en) | 2012-11-23 | 2012-11-23 | Self-lubricating structure of oil pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102997022A CN102997022A (en) | 2013-03-27 |
| CN102997022B true CN102997022B (en) | 2015-06-10 |
Family
ID=47925959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210482493.8A Active CN102997022B (en) | 2012-11-23 | 2012-11-23 | Self-lubricating structure of oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102997022B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662423A (en) * | 2018-08-16 | 2018-10-16 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump that can balance end face oil pressure |
| CN110513593A (en) * | 2019-09-24 | 2019-11-29 | 联禾厚普（太仓）精密机械有限公司 | A kind of oil pump casing of self-lubricating |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5215165A (en) * | 1991-02-19 | 1993-06-01 | Atsugi Unisia Corporation | Oil pump |
| US5312192A (en) * | 1992-06-04 | 1994-05-17 | Ebara Corporation | Bearing lubricating structure for rotary machinery |
| CN201326433Y (en) * | 2008-12-19 | 2009-10-14 | 佛山市南海区轻骑摩托车有限公司 | Motorcycle engine |
| CN201363271Y (en) * | 2009-01-16 | 2009-12-16 | 胡东文 | Vane pump/motor |
| CN201747422U (en) * | 2010-08-16 | 2011-02-16 | 浙江平柴泵业有限公司 | Circulating lubrication oil pump |
| CN202074217U (en) * | 2011-05-23 | 2011-12-14 | 奇瑞汽车股份有限公司 | Oil pump of diesel engine |
| CN102312988A (en) * | 2011-08-25 | 2012-01-11 | 奇瑞汽车股份有限公司 | Chain wheel with double driving ends and engine oil pump assembled with chain wheel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3402064B2 (en) * | 1996-04-30 | 2003-04-28 | スズキ株式会社 | Oil pump |
-
2012
- 2012-11-23 CN CN201210482493.8A patent/CN102997022B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5215165A (en) * | 1991-02-19 | 1993-06-01 | Atsugi Unisia Corporation | Oil pump |
| US5312192A (en) * | 1992-06-04 | 1994-05-17 | Ebara Corporation | Bearing lubricating structure for rotary machinery |
| CN201326433Y (en) * | 2008-12-19 | 2009-10-14 | 佛山市南海区轻骑摩托车有限公司 | Motorcycle engine |
| CN201363271Y (en) * | 2009-01-16 | 2009-12-16 | 胡东文 | Vane pump/motor |
| CN201747422U (en) * | 2010-08-16 | 2011-02-16 | 浙江平柴泵业有限公司 | Circulating lubrication oil pump |
| CN202074217U (en) * | 2011-05-23 | 2011-12-14 | 奇瑞汽车股份有限公司 | Oil pump of diesel engine |
| CN102312988A (en) * | 2011-08-25 | 2012-01-11 | 奇瑞汽车股份有限公司 | Chain wheel with double driving ends and engine oil pump assembled with chain wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102997022A (en) | 2013-03-27 |
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