CN203476775U - Pump shaft support structure - Google Patents

Pump shaft support structure Download PDF

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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
Authority
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
Application number
CN201320315876.6U
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Chinese (zh)
Inventor
吴彩霞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201320315876.6U priority Critical patent/CN203476775U/en
Application granted granted Critical
Publication of CN203476775U publication Critical patent/CN203476775U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

Pump shaft supporting structure
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.
CN201320315876.6U 2013-05-24 2013-05-24 Pump shaft support structure Expired - Fee Related CN203476775U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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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