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 PDF

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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
Application number
CNU2007201740653U
Other languages
Chinese (zh)
Inventor
黄德华
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.)
Jiangxi Copper Corp
Original Assignee
Jiangxi Copper Corp
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 Jiangxi Copper Corp filed Critical Jiangxi Copper Corp
Priority to CNU2007201740653U priority Critical patent/CN201090440Y/en
Application granted granted Critical
Publication of CN201090440Y publication Critical patent/CN201090440Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

A kind of crane hydraulic pressure duplex gear oil pump front end oil sealing
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.
CNU2007201740653U 2007-09-03 2007-09-03 Crane hydraulic pressure duplicate gear oil pump front end oil seal Expired - Fee Related CN201090440Y (en)

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)

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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