CN201258939Y - High pressure oil seal for shock damper - Google Patents

High pressure oil seal for shock damper Download PDF

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Publication number
CN201258939Y
CN201258939Y CNU2008200997301U CN200820099730U CN201258939Y CN 201258939 Y CN201258939 Y CN 201258939Y CN U2008200997301 U CNU2008200997301 U CN U2008200997301U CN 200820099730 U CN200820099730 U CN 200820099730U CN 201258939 Y CN201258939 Y CN 201258939Y
Authority
CN
China
Prior art keywords
oil seal
lip
oil
accessory
seal body
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
CNU2008200997301U
Other languages
Chinese (zh)
Inventor
张兴海
邹新国
崔建
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.)
Chongqing Yuan Innovation Technology Group Co Ltd
Original Assignee
YUAN INNOVATION TECH Co Ltd
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 YUAN INNOVATION TECH Co Ltd filed Critical YUAN INNOVATION TECH Co Ltd
Priority to CNU2008200997301U priority Critical patent/CN201258939Y/en
Application granted granted Critical
Publication of CN201258939Y publication Critical patent/CN201258939Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a high pressure oil seal of a shock absorber; an oil seal body is provided with a main lip and an accessory lip which wrap around a connecting bar, and a central ring groove is arranged on the end surface of the oil seal body facing an air cavity. An oil seal framework is embedded into the oil seal body, and one end of the oil seal framework facing the air cavity is bended inwards and then curved along the oblique course of an oil cavity to keep away from the accessory lip. On the basis of ensuring the intensity of the oil seal, the high pressure oil seal bends the oil seal framework to keep away from the accessory lip, so that the sizing materials of the accessory lip of the oil seal is increased, the stress concentration points are reduced, the part of the accessory lip of the oil seal is effectively protected, oil leakage is prevented, and the whole service life of the oil seal is prolonged. As the ring groove is arranged, the outside silt directly falls into the ring groove, but does not enter a combining surface between the oil seal and the connecting bar through the accessory lip; therefore, the oil seal is protected, and the excessive wear of the oil seal is avoided.

Description

A kind of vibration damper High-pressure oil sealing
Technical field
The utility model relates to the oil sealing parts, specifically refers to a kind of vibration damper High-pressure oil sealing.
Background technique
Be equipped with in the vibration damper damping with oil, for preventing leakage of oil, be provided with oil sealing in the vibration damper, oil sealing between connecting rod and urceolus, vibration damper by the oil sealing passing shaft to defeating tight guide holder and cylinder barrel.According to the working environment difference of oil sealing, oil sealing is divided into High-pressure oil sealing and low pressure oil sealing.Press in the High-pressure oil sealing greatly, the recovery resistance is big, is mainly used in the inflating type vibration damper.Existing High-pressure oil sealing structure as shown in Figure 1, it mainly is made up of oil seal body 1 and oil tight skeleton 2, oil tight skeleton 2 is embedded in the oil seal body 1, oil seal body 1 is provided with center hole 3, center hole 3 walls are provided with main lip 4 and the secondary lip 5 with the connecting rod obvolvent, and common main lip is a plurality of, and secondary lip has only one.Existing oil tight skeleton 2 is inboard near secondary lips, when the secondary lip of oil sealing with after connecting rod cooperates, cause the sizing material between connecting rod and the oil tight skeleton very few.In movement process, the secondary lip power that is squeezed is excessive, produces stress and concentrates, and simultaneously secondary lockjaw is pasted connecting rod, produces very big frictional force, and when connecting rod compress, frictional force was compressed in generation, under the alternating stress effect, secondary lip is more likely torn; Because the temperature of vibration damper rises, add frictional heat simultaneously, cause the temperature of secondary lip to rise to 80-100 ℃, this moment, the tear strength of rubber significantly reduced, and finally caused secondary lip to be torn.Because the effect of frictional force, the secondary lip that falls down may be stuck between two road lips and the main lip, two road lips and main lip is lifted, thereby cause leakage of oil.
The model utility content
At the prior art above shortcomings, thereby the purpose of this utility model provides a kind of concentrated vibration damper High-pressure oil sealing that improves working life of secondary lip stress that reduces.
The technical solution of the utility model is achieved in that a kind of vibration damper High-pressure oil sealing, it is made up of oil seal body and oil tight skeleton, oil tight skeleton is embedded in the oil seal body, oil seal body is provided with center hole, the center hole wall is provided with main lip and the secondary lip with the connecting rod obvolvent, it is characterized in that: oblique again oil pocket direction bending was to avoid secondary lip after oil tight skeleton bent inwards towards air cavity one end.
Described oil seal body is provided with the center annular groove towards the end face of air cavity, and the center annular groove is near secondary lip.
Compare existing vibration damper High-pressure oil sealing, the utility model is being guaranteed on the oil sealing intensity based, will avoid secondary lip after the oil tight skeleton bending; increase the sizing material of the secondary lip of oil sealing thus, reduced stress concentration point, can protect the secondary lip of oil sealing position effectively; prevent leakage of oil, improve the oil sealing bulk life time.Test shows that after 1,500,000 stand tests, the intact nothing of secondary lip is damaged, and oil sealing integral body is no abnormal.
In addition, the setting of circular groove is directly fallen in the circular groove outside silt, and can not enter the junction plane of oil sealing and connecting rod by secondary lip, has protected oil sealing, avoids the excessive wear of oil sealing.And the center annular groove makes the extruding space of secondary lip become big, and the increase of allowing property has reduced stress and concentrated.
Description of drawings
Fig. 1-prior art structural representation;
Fig. 2-the utility model structural representation.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 2, from the figure as can be seen, the utility model vibration damper High-pressure oil sealing, it is made up of oil seal body 1 and oil tight skeleton 2, oil seal body 1 is provided with center hole 3, and center hole 3 walls are provided with main lip 4 and the secondary lip 5 with the connecting rod obvolvent, and (the diagram lower end surface is to air cavity towards air cavity for oil seal body 1, the upper-end surface is to oil pocket) end face be provided with center annular groove 6, center annular groove 6 is near secondary lips.Oil tight skeleton 2 is embedded in the oil seal body 1, and oblique again oil pocket direction bending had increased the sizing material of the secondary lip of oil sealing thus to avoid secondary lip after oil tight skeleton 2 bent inwards towards air cavity one end, reduced stress concentration point.

Claims (2)

1, a kind of vibration damper High-pressure oil sealing, it is made up of oil seal body (1) and oil tight skeleton (2), oil tight skeleton (2) is embedded in the oil seal body (1), oil seal body (1) is provided with center hole (3), center hole (3) wall is provided with main lip (4) and the secondary lip (5) with the connecting rod obvolvent, it is characterized in that: oblique again oil pocket direction bending was to avoid secondary lip (5) after oil tight skeleton (2) bent inwards towards air cavity one end.
2, vibration damper High-pressure oil sealing according to claim 1 is characterized in that: described oil seal body (1) is provided with center annular groove (6) towards the end face of air cavity, and center annular groove (6) is near secondary lip.
CNU2008200997301U 2008-08-18 2008-08-18 High pressure oil seal for shock damper Expired - Fee Related CN201258939Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200997301U CN201258939Y (en) 2008-08-18 2008-08-18 High pressure oil seal for shock damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200997301U CN201258939Y (en) 2008-08-18 2008-08-18 High pressure oil seal for shock damper

Publications (1)

Publication Number Publication Date
CN201258939Y true CN201258939Y (en) 2009-06-17

Family

ID=40773174

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200997301U Expired - Fee Related CN201258939Y (en) 2008-08-18 2008-08-18 High pressure oil seal for shock damper

Country Status (1)

Country Link
CN (1) CN201258939Y (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Chang'an Vibration Damper Co., Ltd., Chongqing

Assignor: Yuan Innovation Tech Co., Ltd.

Contract record no.: 2010500000044

Denomination of utility model: High pressure oil seal for shock damper

Granted publication date: 20090617

License type: Exclusive License

Record date: 20100908

ASS Succession or assignment of patent right

Owner name: CHONGQING XIAOKANG AUTOMOBILE GROUP CO., LTD.

Free format text: FORMER OWNER: CHONGQING YU'AN INNOVATION AND TECHNOLOGY (GROUP) CO., LTD.

Effective date: 20110331

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 400037 AFFILIATED NO. 3, NO. 61, JINQIAO ROAD, SHANGQIAO VILLAGE, TANJIAGANG TOWN, SHABA DISTRICT, CHONGQING CITY TO: 400037 NO. 61-1, JINQIAO ROAD, SHAPINGBA DISTRICT, CHONGQING CITY

TR01 Transfer of patent right

Effective date of registration: 20110331

Address after: 400037 No. 61-1 Jinqiao Road, Shapingba District, Chongqing

Patentee after: Chongqing Sokon Automobile Group Co., Ltd.

Address before: 400037 Chongqing city Shapingba District Town Village Qin Jia Gang Bridge Road Bridge No. 61 of No. 3

Patentee before: Yuan Innovation Tech Co., Ltd.

EM01 Change of recordation of patent licensing contract

Change date: 20110322

Contract record no.: 2010500000044

Assignee after: Chongqing Yu'an Innovation Technology Co., Ltd.

Assignee before: Chang'an Vibration Damper Co., Ltd., Chongqing

C56 Change in the name or address of the patentee

Owner name: CHONGQING SOKON INDUSTRY GROUP CO., LTD.

Free format text: FORMER NAME: CHONGQING SOKON AUTOMOBILE GROUP CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: 400037 No. 61-1 Jinqiao Road, Shapingba District, Chongqing

Patentee after: Chongqing Xiaokang Industry Group Co., Ltd.

Address before: 400037 No. 61-1 Jinqiao Road, Shapingba District, Chongqing

Patentee before: Chongqing Sokon Automobile Group Co., Ltd.

ASS Succession or assignment of patent right

Owner name: CHONGQING YU'AN INNOVATION TECHNOLOGY CO., LTD.

Free format text: FORMER OWNER: CHONGQING SOKON INDUSTRY GROUP CO., LTD.

Effective date: 20120406

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 400037 SHAPINGBA, CHONGQING TO: 400033 SHAPINGBA, CHONGQING

TR01 Transfer of patent right

Effective date of registration: 20120406

Address after: 400033 Fenghuang Town, Shapingba District, Chongqing

Patentee after: Chongqing Yu'an Innovation Technology Co., Ltd.

Address before: 400037 No. 61-1 Jinqiao Road, Shapingba District, Chongqing

Patentee before: Chongqing Xiaokang Industry Group Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090617

Termination date: 20160818