CN201351732Y - Oil sealing device for reduction gearbox bearing - Google Patents

Oil sealing device for reduction gearbox bearing Download PDF

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Publication number
CN201351732Y
CN201351732Y CNU2008202227344U CN200820222734U CN201351732Y CN 201351732 Y CN201351732 Y CN 201351732Y CN U2008202227344 U CNU2008202227344 U CN U2008202227344U CN 200820222734 U CN200820222734 U CN 200820222734U CN 201351732 Y CN201351732 Y CN 201351732Y
Authority
CN
China
Prior art keywords
oil
returning
rolling bearing
bearing
passage
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
CNU2008202227344U
Other languages
Chinese (zh)
Inventor
王高锋
赵玉良
王有飞
葛延
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.)
China National Heavy Machinery Research Institute Co Ltd
Original Assignee
CHINA HEAVY MACHINERY INSTITUTE
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 CHINA HEAVY MACHINERY INSTITUTE filed Critical CHINA HEAVY MACHINERY INSTITUTE
Priority to CNU2008202227344U priority Critical patent/CN201351732Y/en
Application granted granted Critical
Publication of CN201351732Y publication Critical patent/CN201351732Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

An oil sealing device for a reduction gearbox bearing comprises a shaft 1. A rolling bearing 3 is arranged on the shaft 1, the outer ring of the rolling bearing 3 clings to a tank body 2 and a lantern ring 7 respectively, the inner ring of the rolling bearing 3 is sequentially equipped with an oil slinger 10 and an oil slinger 11, an oil inlet pipe 5 is connected with an oil inlet passage of the tank body 2, a ring-groove-shaped gas sealing chamber 12 is arranged at the position of the inner diameter of an unclosed cover 8, the lower portion of the ring-groove-shaped gas sealing chamber 12 is provided with an oil returning hole 13, the lower portion of the lantern ring 7 is also equipped with an oil returning hole 14, and the oil returning hole 13 and the oil returning hole 14 are both communicated with an oil returning passage 17. When lubricating the bearing, lubricating oil passes through the oil inlet passage 4 of the tank body 2 from the oil inlet pipe 5 to lubricate the rolling bearing 3, and over 90% returning oil flows into the oil returning passage 17. Remained returning oil can flow to the oil returning passage through the oil returning holes of each portion. The oil sealing device for a reduction gear box bearing has the advantages of convenient mounting and dismounting, long service life, reliable operation, low cost, and simple and convenient use and maintenance.

Description

A kind of speed reducer bearing oil sealer
Technical field
The utility model relates to the sealing technique of heavy machinery with bearing, particularly a kind of speed reducer bearing oil sealer.
Background technique
In machinery equipment, between the counterpart that rotates mutually, higher seal request is arranged sometimes.For example, input or output bearing on the axle, when work, often utilize the lubricant oil that has certain pressure intensity in a large number that bearing is lubricated and cool off at speed reducer; Owing between axle and the end cap certain clearance is arranged, so will certainly cause lubricant oil from the gap, to spill.Therefore, seal and just seem very important.Usually all must guarantee sealing in the life-span at speed reducer to lubricant oil.
The general rubber seal that adopt of sealing to liquid oils realize more.Though this mode effect is fine, because rubber ring will closely contact Yi Shengre, easy to wear with axle, easily aging, continuous working period is shorter, so need periodic maintenance, the cost height, also cumbersome, be unfavorable in the open air or long-term work is carried out in place such as drilling well.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model provides a kind of speed reducer bearing oil sealer, has easy installation and removal, long service life, reliable operation, cost is low, operation and maintenance is easy characteristics.
The technical solution of the utility model is to realize like this, a kind of speed reducer bearing oil sealer, comprise axle 1, on the axle 1 rolling bearing 3 is installed, rolling bearing 3 outer rings are respectively near the casing 2 and the collar 7, rolling bearing 3 inner rings one end disposes disc 10 and disc 11 successively, the oil inlet passage 4 of oil inlet pipe 5 and casing 2 joins, the inner radius of saturating lid 8 is processed with annular groove shape sealing gland chamber 12, there is spill port 13 its underpart, spill port 13 gets rid of oilhole 15 by saturating lid 8, is connected with the drainback passage 17 of casing 2; The bottom of the collar 7 also is provided with spill port 14, spill port 14 successively by the drainback passage 16 of casing 2, thoroughly cover 8 get rid of oilhole 15, be connected with drainback passage 17.
Because the utility model has adopted bearing radial labyrinth sealing means, has reduced the cost that rubber seal produced, and has overcome the inconvenience that rubber seal brought.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing structural principle of the present utility model and working principle are described in detail.
The utility model comprises axle 1, on the axle 1 rolling bearing 3 is installed, rolling bearing 3 outer rings are respectively near the casing 2 and the collar 7, and rolling bearing 3 inner rings one end disposes disc 10 and disc 11 successively, fixes the axial position of disc 10 and disc 11 by saturating lid 8 and bolt 9.Oil inlet pipe 5 joins by the oil inlet passage 4 of fuel inlet fitting 6 and casing 2, covers 8 inner radius thoroughly and is processed with annular groove shape sealing gland chamber 12, and there is spill port 13 its underpart, and spill port 13 is connected with the drainback passage 17 of casing 2 by the oilhole 15 that gets rid of of saturating lid 8; The bottom of the collar 7 also is provided with spill port 14, spill port 14 successively by the drainback passage 16 of casing 2, thoroughly cover 8 get rid of oilhole 15, be connected with drainback passage 17.
When carrying out bearing lubrication, lubricant oil is lubricated rolling bearing 3 from oil inlet pipe 5 oil inlet passage 4 through casings 2,90% above oil return will be successively by spill port 14, drainback passage 16, get rid of oilhole 15 and enter drainback passage 17.Remaining oil return flows into by the gap between disc 10 and the disc 11 and gets rid of oilhole 15.Even the last also surplus oil return that has, by annular groove shape sealing gland chamber 12 time, also will flow into and get rid of oilhole 15, because axle 1 is when rotating by spill port 13, produce certain air pressure at 12 places, annular groove shape sealing gland chamber, prevention lubricant oil utilization axle 1 and the gap of covering thoroughly between 8 are oozed out.At last, flow into the lubricant oil that gets rid of oilhole 15 and also enter casing by drainback passage 17.Like this, just well realized seal action.

Claims (1)

1, a kind of oil sealer of speed reducer bearing oil, comprise axle (1), on the axle (1) rolling bearing (3) is installed, rolling bearing (3) outer ring is respectively near the casing (2) and the collar (7), it is characterized in that, rolling bearing (3) inner ring one end disposes disc (10) and disc (11) successively, oil inlet pipe (5) joins by the oil inlet passage (4) of fuel inlet fitting (6) and casing (2), the inner radius of saturating lid (8) is processed with annular groove shape sealing gland chamber (12), there is spill port (13) its underpart, and spill port (13) is connected with the drainback passage (17) of casing (2) by the oilhole (15) that gets rid of of saturating lid (8); The bottom of the collar (7) also is provided with spill port (14), spill port (14) successively the drainback passage (16) by casing (2), saturating lid (8) get rid of oilhole (15), be connected with drainback passage (17).
CNU2008202227344U 2008-12-02 2008-12-02 Oil sealing device for reduction gearbox bearing Expired - Fee Related CN201351732Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008202227344U CN201351732Y (en) 2008-12-02 2008-12-02 Oil sealing device for reduction gearbox bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008202227344U CN201351732Y (en) 2008-12-02 2008-12-02 Oil sealing device for reduction gearbox bearing

Publications (1)

Publication Number Publication Date
CN201351732Y true CN201351732Y (en) 2009-11-25

Family

ID=41375119

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008202227344U Expired - Fee Related CN201351732Y (en) 2008-12-02 2008-12-02 Oil sealing device for reduction gearbox bearing

Country Status (1)

Country Link
CN (1) CN201351732Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106438952A (en) * 2016-09-26 2017-02-22 宁波东力传动设备有限公司 Non-contact type sealing structure for speed reducer
CN106838018A (en) * 2017-04-19 2017-06-13 如皋市非标轴承有限公司 A kind of associated sealing arrangement for bearings
GB2545574B (en) * 2015-12-17 2018-10-17 Romax Tech Limited A Gearbox Seal for a Gearbox of a High Speed Train with a Pressure Differential

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2545574B (en) * 2015-12-17 2018-10-17 Romax Tech Limited A Gearbox Seal for a Gearbox of a High Speed Train with a Pressure Differential
CN106438952A (en) * 2016-09-26 2017-02-22 宁波东力传动设备有限公司 Non-contact type sealing structure for speed reducer
CN106838018A (en) * 2017-04-19 2017-06-13 如皋市非标轴承有限公司 A kind of associated sealing arrangement for bearings

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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: CHINA NATIONAL HEAVY MACHINERY RESEARCH INSTITUTE

Free format text: FORMER NAME: CHINA HEAVY MACHINERY INSTITUTE

CP01 Change in the name or title of a patent holder

Address after: 710032 Shaanxi province Xi'an Weiyang Road No. 209 Dong Yuan Xin Jiamiao Xi'an Heavy Machinery Research Institute room ten

Patentee after: China National Heavy Machinery Research Institute Co., Ltd.

Address before: 710032 Shaanxi province Xi'an Weiyang Road No. 209 Dong Yuan Xin Jiamiao Xi'an Heavy Machinery Research Institute room ten

Patentee before: China Heavy Machinery Institute

Address after: 710032 Shaanxi province Xi'an Weiyang Road No. 209 Dong Yuan Xin Jiamiao Xi'an Heavy Machinery Research Institute room ten

Patentee after: China National Heavy Machinery Research Institute Co., Ltd.

Address before: 710032 Shaanxi province Xi'an Weiyang Road No. 209 Dong Yuan Xin Jiamiao Xi'an Heavy Machinery Research Institute room ten

Patentee before: China National Heavy Machinery Research Institute Co., Ltd.

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

Granted publication date: 20091125

Termination date: 20151202

EXPY Termination of patent right or utility model