CN203476775U - Pump shaft support structure - Google Patents
Pump shaft support structure Download PDFInfo
- Publication number
- CN203476775U CN203476775U CN201320315876.6U CN201320315876U CN203476775U CN 203476775 U CN203476775 U CN 203476775U CN 201320315876 U CN201320315876 U CN 201320315876U CN 203476775 U CN203476775 U CN 203476775U
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- CN
- China
- Prior art keywords
- pump
- pump shaft
- support structure
- shaft
- cylinder
- 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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- Details And Applications Of Rotary Liquid Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to a power steering oil pump for an automobile, particularly to a support structure of a pump shaft. The pump shaft support structure comprises a pump body, a rear cover, an antifriction bearing, a pump shaft, a shaft sleeve, an O-shaped ring and a snap spring, and is characterized in that one end of the pump shaft is matched with the pump body through the antifriction bearing, the other end is matched with the shaft sleeve, the shaft sleeve and the O-shaped ring are installed in the rear cover and limited by the snap spring, the shaft sleeve is a step-shaped cylinder, the excircle of one end of the cylinder is provided with a groove, and the other end of the cylinder is provided with a hole. The pump shaft support structure has the beneficial effect that through improvement of pump shaft support, the service life of the power steering oil pump is effectively prolonged.
Description
Technical field
The utility model relates to a kind of automobile power steering oil pump, particularly a kind of supporting structure of pump shaft.
Background technique
Automobile is all the work cycle that the volume-variation in the space that forms based on blade, stator, rotor and both sides oil distribution casing completes oil suction, force feed substantially with power steering oil pump, to realize hydraulic oil, with certain pressure, outputs to steering system.In this process; pump shaft is powered attendant-controlled wheelchairs input source; its one end of existing pump shaft is supported by oil pump case by rolling bearing; the other end coordinates with the set needle bearing of oil pump end cap; High Rotation Speed due to pump shaft; between needle bearing and pump shaft, conventionally can produce larger wearing and tearing, greatly affect the working life of oil pump.
Summary of the invention
The utility model is the supporting structure that a kind of pump shaft is provided in order to address the above problem, the working life of effectively having improved steerig pump.
Scheme of the present utility model is achieved in that a kind of supporting structure of pump shaft, comprise that the pump housing, bonnet, rolling bearing, pump shaft, axle sleeve, O shape circle and jump ring is characterized in that: pump shaft one end coordinates with the pump housing by rolling bearing, the other end coordinates with axle sleeve, and axle sleeve and O shape circle pack bonnet spacing with jump ring into; Described axle sleeve is step-like cylinder, and one end cylinder cylindrical is provided with groove, and the other end cylinder is provided with hole.
The beneficial effects of the utility model are: by the improvement to pump shaft supporting, the working life of effectively having improved power steering oil pump.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, rolling bearing, 2, pump shaft, 3, the pump housing, 4, bonnet, 5, jump ring, 6, axle sleeve, 7, O shape circle.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is further described:
As shown in Figure 1, pump shaft one end coordinates with the pump housing by rolling bearing, the other end coordinates with axle sleeve, axle sleeve is provided with O shape circle and packs bonnet spacing with jump ring into, due to the High Rotation Speed of pump shaft, and between axle sleeve, has formed oil film, effectively avoided the friction producing with pump shaft, thereby effectively extend the working life of oil pump, and the setting of O shape circle, prevented the seepage of fluid.
Claims (2)
1. a pump shaft supporting structure, comprise the pump housing, bonnet, rolling bearing, pump shaft, axle sleeve, O shape circle and jump ring, it is characterized in that: pump shaft one end coordinates with the pump housing by rolling bearing, the other end coordinates with axle sleeve, and axle sleeve and O shape circle pack bonnet spacing with jump ring into.
2. by a kind of pump shaft supporting structure claimed in claim 1, it is characterized in that: described axle sleeve is step-like cylinder, one end cylinder cylindrical is provided with groove, and the other end cylinder is provided with hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320315876.6U CN203476775U (en) | 2013-05-24 | 2013-05-24 | Pump shaft support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320315876.6U CN203476775U (en) | 2013-05-24 | 2013-05-24 | Pump shaft support structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476775U true CN203476775U (en) | 2014-03-12 |
Family
ID=50225113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320315876.6U Expired - Fee Related CN203476775U (en) | 2013-05-24 | 2013-05-24 | Pump shaft support structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476775U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640636A (en) * | 2016-12-01 | 2017-05-10 | 大连液压件有限公司 | Steering pump body structure for preventing sliding of framework oil seal |
-
2013
- 2013-05-24 CN CN201320315876.6U patent/CN203476775U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640636A (en) * | 2016-12-01 | 2017-05-10 | 大连液压件有限公司 | Steering pump body structure for preventing sliding of framework oil seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20140524 |