CN201090440Y - Crane hydraulic pressure duplicate gear oil pump front end oil seal - Google Patents
Crane hydraulic pressure duplicate gear oil pump front end oil seal Download PDFInfo
- Publication number
- CN201090440Y CN201090440Y CNU2007201740653U CN200720174065U CN201090440Y CN 201090440 Y CN201090440 Y CN 201090440Y CN U2007201740653 U CNU2007201740653 U CN U2007201740653U CN 200720174065 U CN200720174065 U CN 200720174065U CN 201090440 Y CN201090440 Y CN 201090440Y
- Authority
- CN
- China
- Prior art keywords
- oil seal
- oil sealing
- oil
- hydraulic pressure
- oil pump
- 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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- Sealing Devices (AREA)
Abstract
The utility model provides a front oil seal for a hydraulic duplicate gear oil pump of a crane, comprising an oil seal. The utility model is characterized in that an 0-shaped seal gasket is arranged between the oil seal and an oil seal retainer hole at the front end face of the pump; the oil seal which is made of nylon is designed aiming at bigger gap between the output shaft of the oil pump and the oil seal retainer hole; the oil seal has the advantages of good seal property and long service life.
Description
Technical field:
The utility model relates to a kind of crane hydraulic pressure duplex gear oil pump front end oil sealing.
Background technique:
The oil sealing of crane hydraulic pressure duplex gear oil pump front end use now is the General Purpose Rubber oil sealing, because oil pump front end oil sealing base hole is totally greater than oil pump input shaft 1mm, the gap is bigger than normal, during the oil pump starting operation, have the input shaft rotating eccentricity, the lip of oil sealing stands oil pump input shaft off-centre bigger rotation, collision for a long time, cause oil seal lip premature ageing to occur, lose due elasticity, well turgor pressure on oil pump shaft, thereby leakage phenomenon takes place.
Summary of the invention:
The purpose of this utility model just provides a kind of crane hydraulic pressure duplex gear oil pump front end oil sealing.
This oil sealing is bigger than normal and design at oil pump input shaft and oil sealing base interporal lacuna, has good seal performance, characteristics such as long service life.
The purpose of this utility model can realize by following scheme: comprise oil sealing, it is characterized in that also being provided with O-ring seals between oil sealing and front cover oil sealing base hole that described oil sealing is made by nylon material.
Owing between oil sealing and front cover oil sealing base hole, be provided with O-ring seals, increased sealing, because oil sealing is to be made by nylon material, increase oil sealing elasticity in addition, both cooperate, and play better sealability.
Description of drawings:
Fig. 1, the utility model user mode structural representation.
Embodiment:
Contrast Fig. 1 as can be known, the utility model comprises oil sealing 5, it is characterized in that also being provided with O-ring seals 3 between oil sealing 5 and front cover 2 oil sealing base holes, described oil sealing 5 is made by nylon material.
Claims (1)
1. a crane hydraulic pressure duplex gear oil pump front end oil sealing comprises oil sealing (5), it is characterized in that also being provided with O-ring seals (3) between oil sealing (5) and front cover (2) oil sealing base hole, and described oil sealing (5) is made by nylon material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2007201740653U CN201090440Y (en) | 2007-09-03 | 2007-09-03 | Crane hydraulic pressure duplicate gear oil pump front end oil seal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2007201740653U CN201090440Y (en) | 2007-09-03 | 2007-09-03 | Crane hydraulic pressure duplicate gear oil pump front end oil seal |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201090440Y true CN201090440Y (en) | 2008-07-23 |
Family
ID=39862201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2007201740653U Expired - Fee Related CN201090440Y (en) | 2007-09-03 | 2007-09-03 | Crane hydraulic pressure duplicate gear oil pump front end oil seal |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201090440Y (en) |
-
2007
- 2007-09-03 CN CNU2007201740653U patent/CN201090440Y/en not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080723 Termination date: 20120903 |