CN203258070U - Inclined pressure-bearing high pressure oil seal for hydraulic motor - Google Patents

Inclined pressure-bearing high pressure oil seal for hydraulic motor Download PDF

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Publication number
CN203258070U
CN203258070U CN2013202059176U CN201320205917U CN203258070U CN 203258070 U CN203258070 U CN 203258070U CN 2013202059176 U CN2013202059176 U CN 2013202059176U CN 201320205917 U CN201320205917 U CN 201320205917U CN 203258070 U CN203258070 U CN 203258070U
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CN
China
Prior art keywords
face
circumferential face
outer circumferential
pressure
seal lip
Prior art date
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Active
Application number
CN2013202059176U
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Chinese (zh)
Inventor
陈增宝
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.)
ANHUI KUBO OIL SEAL CO.,LTD.
Original Assignee
ANHUI KUBO OIL SEAL Co Ltd
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Priority to CN2013202059176U priority Critical patent/CN203258070U/en
Application granted granted Critical
Publication of CN203258070U publication Critical patent/CN203258070U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an inclined pressure-bearing high pressure oil seal for a hydraulic motor. A seal lip opening of the inclined pressure-bearing high pressure oil seal for the hydraulic motor is provided with an inner circumferential face, an inclined end face and an outer circumferential face, the inner circumferential face is in transition connection with the outer circumferential face through the inclined end face, the outer end, close to the outer circumferential face, of the inclined end face is higher than the inner end, close to the inner circumferential face, of the inclined end face, the included angle of the inclined end face and a central axis is larger than the included angle of the outer circumferential face and the central axis, and the generatrix of the inclined end face is shorter than the generatrix of the outer circumferential face. The end faces of the seal lip opening are of an asymmetrical inclined pressure-bearing structure, through the asymmetrical inclined pressure-bearing structure, deformation of the seal lip opening can be greatly reduced under the high pressure condition, abnormal abrasion to the seal lip opening is avoided, therefore, the sealing effect of the seal lip opening is greatly improved, and the service life of the inclined pressure-bearing high pressure oil seal is prolonged.

Description

A kind of oil hydraulic motor is with oblique pressure-bearing High-pressure oil sealing
Technical field
The utility model relates to the High-pressure oil sealing technical field, relates in particular to a kind of oil hydraulic motor with oblique pressure-bearing High-pressure oil sealing, its good sealing effect, long service life.
Background technique
In recent years, along with the fast development of machinery industry, for the requirement of its supporting component also more and more higher.
At present, be the supporting oil hydraulic motor High-pressure oil sealings such as engineering machinery, farm machinery, building machinery, heavy mining machinery, its working condition requirement is very harsh, the normal pressure of this High-pressure oil sealing requires at 15-20Mpa, pressure maximum need reach 30Mpa, 1000 rev/mins of maximum (top) speeds require 300 hours nothings of operation to leak under this condition.
As shown in Figure 1, be the structural representation of a kind of typical High-pressure oil sealing in the prior art.
With reference to Fig. 1, this High-pressure oil sealing comprises skeleton 1 and rubber body 2, rubber body 2 is wrapped in outside the skeleton 1, form seal lip 20 in rubber body 2, the end face of seal lip 20 is the planar end surface A of plane structure, and its bearing capacity is poor, be easy to deform at High Pressure lower seal lip 20, thereby aggravated the wearing and tearing of seal lip 20, its sealing effect is relatively poor, and working life is shorter.Domestic not yet have an oil sealing MANUFACTURER can produce the High-pressure oil sealing of the harsh working condition requirement that satisfies oil hydraulic motor, and this High-pressure oil sealing generally depends on import.
Therefore, how the structure of prior art mesohigh oil sealing is improved, to improve its sealing effect, prolong its working life, satisfying the harsh working condition requirement of oil hydraulic motor, fill up the blank of domestic High-pressure oil sealing, is those skilled in the art assistant officer's technical problem to be solved.
The model utility content
For the problem that prior art exists, the purpose of this utility model is to have proposed a kind of oil hydraulic motor with oblique pressure-bearing High-pressure oil sealing, its good sealing effect, long service life.
For reaching this purpose, the utility model by the following technical solutions:
A kind of oil hydraulic motor is with oblique pressure-bearing High-pressure oil sealing, comprise skeleton and rubber body, rubber body is wrapped in outside the skeleton, form seal lip in rubber body, seal lip has inner peripheral surface, angled end-face and outer circumferential face, be connected by the angled end-face transition between inner peripheral surface and the outer circumferential face, angled end-face is higher than it near the inner of inner peripheral surface near the outer end of outer circumferential face.
Preferably, the angle of angled end-face and central axis is greater than the angle of outer circumferential face and central axis.
Preferably, the bus length of angled end-face is shorter than the bus length of outer circumferential face.
Based on disclosing of above technological scheme, the utility model possesses following beneficial effect:
In the utility model, the seal lip of High-pressure oil sealing has inner peripheral surface, angled end-face and outer circumferential face, be connected by the angled end-face transition between inner peripheral surface and the outer circumferential face, angled end-face is higher than it near the inner of inner peripheral surface near the outer end of outer circumferential face, the angle of angled end-face and central axis is greater than the angle of outer circumferential face and central axis, and the bus length of angled end-face is shorter than the bus length of outer circumferential face.The end face of seal lip adopts asymmetric oblique bearing structure, rather than plane structure of the prior art, under condition of high voltage, asymmetric oblique bearing structure can significantly be cut down the distortion of seal lip, avoided the inordinate wear of seal lip, thereby greatly improved its sealing effect, prolonged its working life.In actual application, this High-pressure oil sealing can be at normal pressure 15-20Mpa, pressure maximum 30Mpa, and operation 300 hours has been satisfied the application needs under the harsh working condition requirement of oil hydraulic motor without leaking under the condition that maximum (top) speed is 1000 rev/mins.
Description of drawings
Fig. 1 is the structural representation of a kind of typical High-pressure oil sealing in the prior art.
Fig. 2 is a kind of oil hydraulic motor that the utility model proposes with the structural representation of oblique pressure-bearing High-pressure oil sealing.
Embodiment
As shown in Figure 2, be a kind of oil hydraulic motor that the utility model proposes structural representation with oblique pressure-bearing High-pressure oil sealing.
With reference to Fig. 2, a kind of oil hydraulic motor that the utility model proposes is with oblique pressure-bearing High-pressure oil sealing, comprise skeleton 1 and rubber body 2, rubber body 2 is wrapped in outside the skeleton 1, form seal lip 20 in rubber body 2, seal lip 20 has inner peripheral surface 21, angled end-face 22 and outer circumferential face 23, be connected by angled end-face 22 transition between inner peripheral surface 21 and the outer circumferential face 23, angled end-face 22 is higher than it near the inner of inner peripheral surface 21 near the outer end of outer circumferential face 23, the end face of seal lip is oblique bearing structure, has improved the bearing capacity of seal lip.
Wherein, the angle of angled end-face 22 and central axis is greater than the angle of outer circumferential face 23 with central axis, the bus length of angled end-face 22 is shorter than the bus length of outer circumferential face 23, and the end face of seal lip is asymmetric oblique bearing structure, has further improved the bearing capacity of seal lip.
In the utility model, the seal lip of High-pressure oil sealing has inner peripheral surface, angled end-face and outer circumferential face, be connected by the angled end-face transition between inner peripheral surface and the outer circumferential face, angled end-face is higher than it near the inner of inner peripheral surface near the outer end of outer circumferential face, the angle of angled end-face and central axis is greater than the angle of outer circumferential face and central axis, and the bus length of angled end-face is shorter than the bus length of outer circumferential face.The end face of seal lip adopts asymmetric oblique bearing structure, rather than plane structure of the prior art, under condition of high voltage, asymmetric oblique bearing structure can significantly be cut down the distortion of seal lip, avoided the inordinate wear of seal lip, thereby greatly improved its sealing effect, prolonged its working life.
In actual application, High-pressure oil sealing of the present utility model can be used in the oil hydraulic motor, this High-pressure oil sealing can be at normal pressure 15-20Mpa, pressure maximum 30Mpa, 300 hours nothings of operation are leaked under the condition that maximum (top) speed is 1000 rev/mins, the application needs under the harsh working condition requirement of oil hydraulic motor have been satisfied, the fine blank of filling up domestic High-pressure oil sealing.
The above; it only is the better embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to replacement or change according to the technical solution of the utility model and model utility design thereof, all should be encompassed within the protection domain of the present utility model.

Claims (3)

1. an oil hydraulic motor is with oblique pressure-bearing High-pressure oil sealing, comprise skeleton (1) and rubber body (2), rubber body (2) is wrapped in outside the skeleton (1), form seal lip (20) in rubber body (2), it is characterized in that, seal lip (20) has inner peripheral surface (21), angled end-face (22) and outer circumferential face (23), be connected by angled end-face (22) transition between inner peripheral surface (21) and the outer circumferential face (23), angled end-face (22) is higher than it near the inner of inner peripheral surface (21) near the outer end of outer circumferential face (23).
2. oil hydraulic motor according to claim 1 is characterized in that with oblique pressure-bearing High-pressure oil sealing, and the angle of angled end-face (22) and central axis is greater than the angle of outer circumferential face (23) with central axis.
3. oil hydraulic motor according to claim 1 and 2 is characterized in that with oblique pressure-bearing High-pressure oil sealing, and the bus length of angled end-face (22) is shorter than the bus length of outer circumferential face (23).
CN2013202059176U 2013-04-22 2013-04-22 Inclined pressure-bearing high pressure oil seal for hydraulic motor Active CN203258070U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013202059176U CN203258070U (en) 2013-04-22 2013-04-22 Inclined pressure-bearing high pressure oil seal for hydraulic motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013202059176U CN203258070U (en) 2013-04-22 2013-04-22 Inclined pressure-bearing high pressure oil seal for hydraulic motor

Publications (1)

Publication Number Publication Date
CN203258070U true CN203258070U (en) 2013-10-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013202059176U Active CN203258070U (en) 2013-04-22 2013-04-22 Inclined pressure-bearing high pressure oil seal for hydraulic motor

Country Status (1)

Country Link
CN (1) CN203258070U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107355539A (en) * 2017-08-11 2017-11-17 徐州华通浮动油封科技有限公司 A kind of High-pressure oil sealing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107355539A (en) * 2017-08-11 2017-11-17 徐州华通浮动油封科技有限公司 A kind of High-pressure oil sealing

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: ANHUI KUBO SEALING TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: ANHUI KUBO OIL SEAL CO., LTD.

CP03 Change of name, title or address

Address after: 242300, Anhui, Ningguo, Ningguo Xuancheng economic and Technological Development Zone, Nanshan West Road, Ding Ding Industrial Park North Anhui Kolb Sealing Technology Co., Ltd.

Patentee after: ANHUI KUBO OIL SEAL CO.,LTD.

Address before: 242300, Anhui, Xuancheng, Ningguo Ningguo economic and Technological Development Zone, Nanshan West Road, Ding Ding Industrial Park North Anhui Kolb oil seal Co., Ltd.

Patentee before: Anhui Kubo Oil Seal Co., Ltd.