CN102953986A - Oil pump - Google Patents
Oil pump Download PDFInfo
- Publication number
- CN102953986A CN102953986A CN2012104779010A CN201210477901A CN102953986A CN 102953986 A CN102953986 A CN 102953986A CN 2012104779010 A CN2012104779010 A CN 2012104779010A CN 201210477901 A CN201210477901 A CN 201210477901A CN 102953986 A CN102953986 A CN 102953986A
- Authority
- CN
- China
- Prior art keywords
- pump
- shaft
- pump body
- shaft sleeve
- axle sleeve
- 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.)
- Pending
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Abstract
The invention discloses an oil pump, which comprises a pump body, a pump shaft and a shaft sleeve, wherein the shaft sleeve is in a cylindrical shape and is sleeved on the pump shaft at a connecting part of the pump shaft and the pump body; one end of the shaft sleeve is extended towards the pump body so as to form a bulge; and a groove corresponding to the bulge is arranged on the pump body. According to the oil pump, the shaft sleeve is additionally arranged between the pump body and the pump shaft, the shaft sleeve and the pump body are arranged to be a mutually matched structure, and the shaft sleeve is the extension unit of the pump body relatively, so that the high toughness and the abrasive resistance of the pump body in rolling friction with the pump shaft are improved, and the service life of the pump body or even the oil pump is prolonged; and the bulge on the shaft sleeve can be arranged on an inner side or an outer side of the pump body, so that the shaft sleeve can be disassembled, assembled and replaced conveniently, and is made of materials with high toughness and high abrasive resistance.
Description
Technical field
The present invention is a kind of oil pump.
Background technique
Oil pump is a kind of transferring oil or the machinery that oil carried out supercharging, mainly comprise the pump housing, gear train, pump shaft, wherein gear train is installed on the pump shaft, and pump shaft is located on the pump housing, be rolling friction between existing pump shaft and the pump housing, easily damage in pump shaft high speed rotating middle pump body contacting point, cause pump housing leakage of oil, and the working life of oil pump.
Summary of the invention
The purpose of this invention is to provide a kind of oil pump, solve existing oil pump short problem in working life.
Purpose of the present invention is come specific implementation by the following technical programs: a kind of oil pump, include the pump housing and pump shaft, also include axle sleeve, this axle sleeve is made as cylindric, be set on the pump shaft of pump shaft and pump housing joint, and an end of this axle sleeve extends to form projection to the pump housing; This pump housing is provided with the groove corresponding with this projection.
Further, this axle sleeve is made by the 7Cr7Mo2V2Si material.
Further, the projection on this axle sleeve is located at the pump housing outside.
Further, the projection on this axle sleeve is located at pump housing inboard.
Oil pump of the present invention is set up axle sleeve between the pump housing and pump shaft, and axle sleeve and the pump housing are made as mutual matching structure, be the extension component of the pump housing with respect to axle sleeve, pump housing high tenacity and wear resistance with the pump shaft rolling friction have been improved, the pump housing even oil pump working life have been prolonged, and the projection on the axle sleeve can be located at inboard or the outside of the pump housing, and easy disassembly is changed, and adopts high tenacity and high wear resistance material to make.
Figure of description
The below is described in further detail the present invention with embodiment with reference to the accompanying drawings.
Fig. 1 is the structural representation of the described oil pump of the embodiment of the invention.
Embodiment
The below adopts specific embodiment to describe the present invention by reference to the accompanying drawings:
A kind of oil pump as shown in Figure 1 includes the pump housing 2 and pump shaft 1, also includes axle sleeve 3, and this axle sleeve 3 is made as cylindric, be set on the pump shaft 1 of pump shaft 1 and the pump housing 2 joints, and an end of this axle sleeve 3 extends to form projection to the pump housing 2; This pump housing 2 is provided with the groove corresponding with this projection.
Selectively the projection on the axle sleeve 3 is located at inboard or the outside of the pump housing 2, even can adopts axle sleeve 3 is threaded on the pump housing 2, dismounting and change convenient.
Claims (4)
1. an oil pump includes the pump housing and pump shaft, it is characterized in that: also include axle sleeve, this axle sleeve is made as cylindric, be set on the pump shaft of pump shaft and pump housing joint, and an end of this axle sleeve extends to form projection to the pump housing; This pump housing is provided with the groove corresponding with this projection.
2. oil pump as claimed in claim 1, it is characterized in that: this axle sleeve is made by the 7Cr7Mo2V2Si material.
3. oil pump as claimed in claim 1, it is characterized in that: the projection on this axle sleeve is located at the pump housing outside.
4. oil pump as claimed in claim 1, it is characterized in that: the projection on this axle sleeve is located at pump housing inboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104779010A CN102953986A (en) | 2012-11-22 | 2012-11-22 | Oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104779010A CN102953986A (en) | 2012-11-22 | 2012-11-22 | Oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102953986A true CN102953986A (en) | 2013-03-06 |
Family
ID=47763236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104779010A Pending CN102953986A (en) | 2012-11-22 | 2012-11-22 | Oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102953986A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200940574Y (en) * | 2006-08-16 | 2007-08-29 | 季裕成 | Novel chemical centrifugal pump |
| CN201013650Y (en) * | 2007-03-27 | 2008-01-30 | 胡滨 | Mechanical sealing member for hot oil pump axis |
| CN101349267A (en) * | 2007-11-16 | 2009-01-21 | 江苏驰翔精密齿轮有限公司 | Engine oil pump |
| CN201554686U (en) * | 2009-10-31 | 2010-08-18 | 邬国平 | Mechanical sealing device for marine pump |
| CN201679760U (en) * | 2010-04-02 | 2010-12-22 | 宝钢集团新疆八一钢铁有限公司 | Water pump shaft sleeve sealing device |
| CN201858149U (en) * | 2010-11-18 | 2011-06-08 | 山东章晃机械工业有限公司 | Non-contact seal type Roots fan |
| CN102345608A (en) * | 2010-07-29 | 2012-02-08 | 蒋国泉 | Waste acid concentration pump with labyrinth type auxiliary impeller |
-
2012
- 2012-11-22 CN CN2012104779010A patent/CN102953986A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200940574Y (en) * | 2006-08-16 | 2007-08-29 | 季裕成 | Novel chemical centrifugal pump |
| CN201013650Y (en) * | 2007-03-27 | 2008-01-30 | 胡滨 | Mechanical sealing member for hot oil pump axis |
| CN101349267A (en) * | 2007-11-16 | 2009-01-21 | 江苏驰翔精密齿轮有限公司 | Engine oil pump |
| CN201554686U (en) * | 2009-10-31 | 2010-08-18 | 邬国平 | Mechanical sealing device for marine pump |
| CN201679760U (en) * | 2010-04-02 | 2010-12-22 | 宝钢集团新疆八一钢铁有限公司 | Water pump shaft sleeve sealing device |
| CN102345608A (en) * | 2010-07-29 | 2012-02-08 | 蒋国泉 | Waste acid concentration pump with labyrinth type auxiliary impeller |
| CN201858149U (en) * | 2010-11-18 | 2011-06-08 | 山东章晃机械工业有限公司 | Non-contact seal type Roots fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130306 |