CN201057273Y - Gas sealing structure of slide bearing - Google Patents

Gas sealing structure of slide bearing Download PDF

Info

Publication number
CN201057273Y
CN201057273Y CNU2007201116354U CN200720111635U CN201057273Y CN 201057273 Y CN201057273 Y CN 201057273Y CN U2007201116354 U CNU2007201116354 U CN U2007201116354U CN 200720111635 U CN200720111635 U CN 200720111635U CN 201057273 Y CN201057273 Y CN 201057273Y
Authority
CN
China
Prior art keywords
bearing
air
annular gasbag
sealing cover
utility
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
CNU2007201116354U
Other languages
Chinese (zh)
Inventor
何建东
裘叶军
黄燕红
钱忠
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.)
Shanghai Shenke Slide Bearing Corporation
Shen Ke sliding bearing Limited by Share Ltd
Original Assignee
何全波
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 何全波 filed Critical 何全波
Priority to CNU2007201116354U priority Critical patent/CN201057273Y/en
Application granted granted Critical
Publication of CN201057273Y publication Critical patent/CN201057273Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model relates to a sliding bearing gas sealing structure that comprises a sealing cover fixed on a bearing seat, and two sealing rings positioned between the sealing cover and a rotating shaft. An annular gasbag forms between the two sealing rings. The top of the annular gasbag is provided with a supercharging airflow via. The top of the supercharging via is provided with a source nipple. The supercharging air is led into the annular gasbag through the source nipple, and is divided into two airflows after entering the annular gasbag, wherein most is inhaled to a negative pressure region outside the bearing and little enters into a oil mist region inside the bearing to guarantee the oil mist not to leak towards the interior of a motor. The utility model is of simple and reasonable structure and obvious effect.

Description

The sliding bearing air seal structure
Technical field
The utility model relates to a kind of sealing configuration, especially a kind of sliding bearing air seal structure.
Background technique
The leakage of oil problem of bearing in running once becoming problem the most thorny in the industry and headache, influenced the operation and the working life of bearing.Owing to need fan to drive air cooling during the motor operation, the rotation of fan makes and is forming a negative pressuren zone near bearing end place, and conventional bearing seal lid can only simply seal by a seal ring of being located in it, the air pressure in bearing sealing gland chamber is more on the low side than bearing inside, cause the mist of oil in the bearing to be inhaled into motor, cause leakage of oil.Domestic electric machine can't address this problem with sliding bearing always.
Summary of the invention
The purpose of this utility model is a kind of simple in structure, obvious results sliding bearing air seal structure of design.The technical solution of the utility model is so to realize:
A kind of sliding bearing air seal structure, comprise the sealing cover (1) that is fixed on the bearing support (5), be located at the seal ring (2) between sealing cover (1) and the rotating shaft (7), seal ring (2) is two, form an annular air-pocket (3) between two seal rings (2), the top of air bag (3) is provided with a pressurized air stream through hole (6).
As preferably, the top of pressurized air stream through hole (6) is provided with threaded coupling (4).
Be provided with two seal rings between the utility model sealing cover and the rotating shaft, form the air bag of an annular between two seal rings, a through hole is opened at the air bag top, the outside increases a threaded coupling, introduce pressurized air to annular air-pocket by threaded coupling, divide two strands of air-flows after entering annular air-pocket, major part is inhaled into the negative pressuren zone outside the bearing, seldom a part enters the mist of oil district in the bearing, thereby has guaranteed that mist of oil does not leak to motor internal.The utility model is simple and reasonable, and effect is remarkable.
Description of drawings
Accompanying drawing is a kind of structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing,, the technical solution of the utility model is described in further detail by embodiment.
Embodiment: with reference to the accompanying drawings, a kind of sliding bearing air seal structure, comprise the sealing cover (1) that is fixed on the bearing support (5), be located at the seal ring (2) between sealing cover (1) and the rotating shaft (7), seal ring (2) is two, form an annular air-pocket (3) between two seal rings (2), the top of air bag (3) is provided with a pressurized air stream through hole (6), and its top is provided with threaded coupling (4).
Introduce pressurized air to annular air-pocket (3) by threaded coupling (4), enter annular air-pocket (3) back and divide two strands of air-flows, major part is inhaled into the negative pressuren zone in the bearing outside, and seldom a part enters the mist of oil district in the bearing, thereby has guaranteed that mist of oil does not leak to motor internal.

Claims (2)

1. sliding bearing air seal structure, comprise the sealing cover (1) that is fixed on the bearing support (5), be located at the seal ring (2) between sealing cover (1) and the rotating shaft (7), it is characterized in that described seal ring (2) is two, form an annular air-pocket (3) between two seal rings (2), the top of air bag (3) is provided with a pressurized air stream through hole (6).
2. sliding bearing air seal structure according to claim 1 is characterized in that the top of described pressurized air stream through hole (6) is provided with threaded coupling (4).
CNU2007201116354U 2007-07-04 2007-07-04 Gas sealing structure of slide bearing Expired - Fee Related CN201057273Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007201116354U CN201057273Y (en) 2007-07-04 2007-07-04 Gas sealing structure of slide bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007201116354U CN201057273Y (en) 2007-07-04 2007-07-04 Gas sealing structure of slide bearing

Publications (1)

Publication Number Publication Date
CN201057273Y true CN201057273Y (en) 2008-05-07

Family

ID=39426115

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007201116354U Expired - Fee Related CN201057273Y (en) 2007-07-04 2007-07-04 Gas sealing structure of slide bearing

Country Status (1)

Country Link
CN (1) CN201057273Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103403321A (en) * 2011-03-17 2013-11-20 博格华纳公司 Gas pressure biased sealing method for an actuating shaft
CN103438197A (en) * 2013-09-12 2013-12-11 太重（天津）滨海重型机械有限公司 Transmission case and shaft end high-pressure antiseep device thereof
CN105370887A (en) * 2015-11-04 2016-03-02 西北工业大学 Static and dynamic composite sealing structure and method for rotary machine rotor
CN108397551A (en) * 2018-05-16 2018-08-14 雷磊 A kind of supercharging dedusting slide plate movable sealing structure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103403321A (en) * 2011-03-17 2013-11-20 博格华纳公司 Gas pressure biased sealing method for an actuating shaft
CN103438197A (en) * 2013-09-12 2013-12-11 太重（天津）滨海重型机械有限公司 Transmission case and shaft end high-pressure antiseep device thereof
CN103438197B (en) * 2013-09-12 2016-08-10 太重（天津）滨海重型机械有限公司 Change speed gear box and axle head high pressure leakage-resistant device thereof
CN105370887A (en) * 2015-11-04 2016-03-02 西北工业大学 Static and dynamic composite sealing structure and method for rotary machine rotor
CN105370887B (en) * 2015-11-04 2017-07-14 西北工业大学 A kind of quiet dynamic compound sealing structure and method for rotary machine rotor
CN108397551A (en) * 2018-05-16 2018-08-14 雷磊 A kind of supercharging dedusting slide plate movable sealing structure

Similar Documents

Publication Publication Date Title
CN201057273Y (en) Gas sealing structure of slide bearing
CN205533096U (en) Compressor air cooling packs
CN104454150A (en) Turbocharger gas compressor sealing structure
CN103174506B (en) A kind of turbocharger
CN202812203U (en) Oil mist-prevention air seal structure for sliding bearing
CN205190312U (en) A atmoseal device for centrifugal blower
CN208397310U (en) A kind of air blower carbon ring sealing structure
CN102434225A (en) Sealing structure of booster impeller shaft
CN202560625U (en) Gas fan sealing device
CN203686162U (en) Novel ultrahigh vacuum valve
CN204402646U (en) Compressor end sealing structure of turbosuperchargers
CN204025051U (en) A kind of novel slide vane compressor
CN201177045Y (en) Bearing inner cup gas seal structure
CN202611779U (en) Double-seal-ring and double-oil-cavity middle body structure for turbocharger
CN206860482U (en) Technique blower fan and technique blower fan system
CN209083689U (en) The ship compressor rotor shaft that installation spiral water sink cools down
CN204420125U (en) A kind of boiler accessory machinery bearing housing inflatable seal device
CN107143507A (en) Technique blower fan and technique blower fan system
CN207212625U (en) A kind of compressor return oil system
CN202221938U (en) End cover type sliding bearing for high-speed motor
CN207500112U (en) A kind of twin-stage scroll compressor with pressure difference oil supply structure
CN201057272Y (en) Gas sealing mechanism of bearing inner cover
CN206723047U (en) A kind of novel magnetic seal fan
CN207212672U (en) A kind of compressor oil-return device
CN201507468U (en) Negative pressure anti-oil leakage device of blower bearing box

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: ZHEJIANG SHENKE SLIDING BEARING CO.,LTD.

Free format text: FORMER OWNER: HE QUANBO

Effective date: 20080704

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20080704

Address after: Zhejiang city of Zhuji Province Wang Yun Road No. 138, zip code: 311800

Patentee after: Zhejiang Tymoshenko Sliding Bearing Co., Ltd.

Address before: Zhejiang city of Zhuji Province Wang Yun Lu No. 138 Zhejiang Tymoshenko Sliding Bearing Co. Ltd, zip code: 311800

Patentee before: He Quanbo

ASS Succession or assignment of patent right

Owner name: ZHEJIANG SHENKE SLIDING BEARING CO.,LTD.; PATENTE

Free format text: FORMER OWNER: ZHEJIANG SHENKE SLIDING BEARING CO.,LTD.

Effective date: 20081031

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20081031

Address after: Zhejiang city of Zhuji Province Wang Yun Road No. 138, zip code: 311800

Co-patentee after: Shanghai Shenke Slide Bearing Corporation

Patentee after: Zhejiang Tymoshenko Sliding Bearing Co., Ltd.

Address before: Zhejiang city of Zhuji Province Wang Yun Road No. 138, zip code: 311800

Patentee before: Zhejiang Tymoshenko Sliding Bearing Co., Ltd.

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20090320

Address after: No. 132, Wang Yun Road, Zhuji, Zhejiang, zip code: 311800

Co-patentee after: Shanghai Shenke Slide Bearing Corporation

Patentee after: Shen Ke sliding bearing Limited by Share Ltd

Address before: Zhejiang city of Zhuji Province Wang Yun Road No. 138, zip code: 311800

Co-patentee before: Shanghai Shenke Slide Bearing Corporation

Patentee before: Zhejiang Tymoshenko Sliding Bearing Co., Ltd.

ASS Succession or assignment of patent right

Owner name: SHENKE SLIDING BEARING CO., LTD.

Free format text: FORMER OWNER: ZHEJIANG SHENKE SLIDING BEARING CO.,LTD.

Effective date: 20090320

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080507

Termination date: 20120704