CN102355079A - End cover type sliding bearing of high-speed motor - Google Patents
End cover type sliding bearing of high-speed motor Download PDFInfo
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- CN102355079A CN102355079A CN2011102674433A CN201110267443A CN102355079A CN 102355079 A CN102355079 A CN 102355079A CN 2011102674433 A CN2011102674433 A CN 2011102674433A CN 201110267443 A CN201110267443 A CN 201110267443A CN 102355079 A CN102355079 A CN 102355079A
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- end cover
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Abstract
The invention discloses an end cover type sliding bearing of a high-speed motor. The end cover type sliding bearing comprises a bearing box, an outer bearing cover, an upper bearing cover, a valve, a bearing bush, an oil inlet pipe, an inner bearing cover and sealing rings, wherein the upper bearing cover and the bearing box form a bisectioned structure; the bearing box is integrated with the lower half of an end cover of the motor; a lower cavity is formed in the sidewall, close to one side of the motor, of the bearing box, and leads to a part below the motor shaft; an upper cavity corresponding to the lower cavity is formed in the sidewall, close to one side of the motor, of the upper bearing cover, and leads to a part above the motor shaft; and after the bearing box and the upper bearing cover are connected, the upper and lower cavities form an airtight cavity which surrounds the motor shaft and is communicated with air. The end cover type sliding bearing of the high-speed motor can prevent oil absorption caused by a negative pressure generated by a fan in the motor around the inner bearing cover of the motor, and effectively prevent oil penetration.
Description
Technical field
The invention belongs to electric motor end cap formula sliding bearing field, be specifically related to a kind of sealing of high-speed electric expreess locomotive end cover type sliding bearing.
Background technology
The bearing of big-and-middle-sized high-speed electric expreess locomotive is generally selected sliding bearing for use; Mainly by bearing housing; Bearing end cover; Bearing upper cover; Valve; Bearing shell; Oil inlet pipe; Composition such as internal bearing cover and sealing ring; Electric motor end cap is fixedly connected between internal bearing cover and bearing housing and the bearing upper cover; Electric motor end cap and internal bearing cover; Bearing housing; Bearing upper cover surrounds a relative sealed space jointly; This type sliding bearing in use; Because the motor internal action of fan can produce negative pressure in the sealing space; Lubricating oil in bearing housing takes place in regular meeting is sucked into the phenomenon of motor internal; Make the greasy dirt and the dust stratification of motor internal too much; Cause improper ventilation; Thereby make motor temperature too high and damage; Or electrical machine insulation resistance is reduced, produce punch-through.The leakage of oil of high-speed electric expreess locomotive sliding bearing is a problem demanding prompt solution.
Summary of the invention
The object of the present invention is to provide a kind of compact conformation, can solve the high-speed electric expreess locomotive end cover type sliding bearing of high-speed electric expreess locomotive sliding bearing leakage of oil problem.
For realizing above-mentioned purpose, the technical scheme that the present invention takes is:
A kind of high-speed electric expreess locomotive end cover type sliding bearing; Comprise bearing housing, bearing end cover, bearing upper cover, valve, bearing shell, oil inlet pipe, internal bearing cover and sealing ring; Bearing upper cover and bearing housing are branch half hitch structures; The latter half of described bearing housing and electric motor end cap unites two into one; Bearing housing leans in the sidewall of motor one side and is provided with down cavity, and described cavity down leads to the motor shaft below; In bearing upper cover leans on the sidewall of motor one side, be provided with and the corresponding upper plenum of following cavity, described upper plenum leads to the motor shaft top; Bearing housing is with after bearing upper cover is connected, the sealing gland cavity that upper plenum and following cavity become a wound motor axle and communicate with air.
Described bearing housing and electric motor end cap are for dividing body structure.
Above-mentioned high-speed electric expreess locomotive end cover type sliding bearing provided by the invention; Owing to lean on the sealing gland cavity that is provided with the wound motor axle and communicates in the sidewall of motor one side with air at bearing housing and bearing upper cover; Avoided in the prior art because the oil suction phenomenon that the negative pressure that the motor internal fan produces around the motor bearings inner cap causes; Effectively prevent oil impregnate, and easy to assembly.
Description of drawings
Fig. 1: high-speed electric expreess locomotive end cover type sliding bearing sketch map of the present invention.
Among the figure: 1-bearing housing, 2-bearing end cover, 3-sealing ring, 4-bearing upper cover, 5-valve, 6-bearing shell, 7-oil inlet pipe, 8-internal bearing cover, 9-sealing ring, 10-sealing ring, 11-electric motor end cap, 12-sealing gland cavity.
Embodiment
As shown in Figure 1, in the embodiment of a kind of high-speed electric expreess locomotive end cover type sliding bearing provided by the invention:
This high-speed electric expreess locomotive end cover type sliding bearing comprises bearing housing 1, bearing end cover 2, bearing upper cover 4, valve 5, bearing shell 6, oil inlet pipe 7, internal bearing cover 8 and sealing ring 3, sealing ring 9, sealing ring 10.Bearing upper cover 4 is a branch half hitch structure with bearing housing 1, and bearing housing 1 unites two into one with the latter half of electric motor end cap; Bearing housing 1 leans in the sidewall of motor one side and is provided with down cavity, and this time cavity leads to the motor shaft below, and is fluted in the inner radius near bearing shell 5 sidewalls, built-in floating seal ring 10; By being provided with in the sidewall of motor one side and the corresponding upper plenum of following cavity, this upper plenum leads to the motor shaft top at bearing upper cover 4.
Bearing housing 1 is with after bearing upper cover 4 usefulness bolts are connected, the sealing gland cavity 12 that upper plenum and following cavity become a wound motor axle and communicate with air.The bottom of this sealing gland cavity 12 and atmosphere, this sealing gland cavity 12 can effectively stop because the oil suction phenomenon that the negative pressure that the motor internal fan produces around motor bearings inner cap 8 causes together with the floating seal ring on the internal bearing cover 89.
Bearing housing 1 unites two into one with the latter half of electric motor end cap, becomes as a whole, can strengthen the rigidity of bearing housing, reduces bearing vibration.
Bearing housing 1 is to divide body structure with electric motor end cap 11, is convenient to be installed on maintenance.
Above-described only is preferred embodiment of the present invention, does not limit to the present invention.Should be understood that for the person of ordinary skill of the art, under teachings provided by the present invention, can also make other equivalent modifications and improvement, all can realize the object of the invention, all should be considered as protection scope of the present invention.
Claims (2)
1. high-speed electric expreess locomotive end cover type sliding bearing; Comprise bearing housing, bearing end cover, bearing upper cover, valve, bearing shell, oil inlet pipe, internal bearing cover and sealing ring; Bearing upper cover and bearing housing are branch half hitch structures; It is characterized in that: the latter half of described bearing housing and electric motor end cap unites two into one; Bearing housing leans in the sidewall of motor one side and is provided with down cavity, and described cavity down leads to the motor shaft below; In bearing upper cover leans on the sidewall of motor one side, be provided with and the corresponding upper plenum of following cavity, described upper plenum leads to the motor shaft top; Bearing housing is with after bearing upper cover is connected, the sealing gland cavity that upper plenum and following cavity become a wound motor axle and communicate with air.
2. high-speed electric expreess locomotive end cover type sliding bearing according to claim 1 is characterized in that: described bearing housing and electric motor end cap are for dividing body structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102674433A CN102355079A (en) | 2011-09-09 | 2011-09-09 | End cover type sliding bearing of high-speed motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102674433A CN102355079A (en) | 2011-09-09 | 2011-09-09 | End cover type sliding bearing of high-speed motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102355079A true CN102355079A (en) | 2012-02-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102674433A Pending CN102355079A (en) | 2011-09-09 | 2011-09-09 | End cover type sliding bearing of high-speed motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102355079A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705373A (en) * | 2012-05-25 | 2012-10-03 | 湖南崇德工业科技有限公司 | Negative-pressure-resistant oil-gas sealing device of end-cover sliding bearing |
| CN103516111A (en) * | 2013-11-06 | 2014-01-15 | 江苏航天动力机电有限公司 | Structure for balancing interior negative pressure of motor |
| CN103762774A (en) * | 2013-12-31 | 2014-04-30 | 中船重工电机科技股份有限公司 | Externally-arranged type rotating rectifier alternating current motor with oil-leakage preventing device |
| CN106286606A (en) * | 2016-10-20 | 2017-01-04 | 陈雪刚 | End bracket type bearing |
| CN107350100A (en) * | 2017-07-21 | 2017-11-17 | 辽宁朗源环境科技有限公司 | A kind of high speed centrifugal atomization device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764453A (en) * | 2009-09-24 | 2010-06-30 | 无锡哈电电机有限公司 | Bearing structure of motor |
| CN202221938U (en) * | 2011-09-09 | 2012-05-16 | 兰州电机股份有限公司 | End cover type sliding bearing for high-speed motor |
-
2011
- 2011-09-09 CN CN2011102674433A patent/CN102355079A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764453A (en) * | 2009-09-24 | 2010-06-30 | 无锡哈电电机有限公司 | Bearing structure of motor |
| CN202221938U (en) * | 2011-09-09 | 2012-05-16 | 兰州电机股份有限公司 | End cover type sliding bearing for high-speed motor |
Non-Patent Citations (1)
| Title |
|---|
| 熊世煊: "《电机用端盖式球面滑动轴承防负压结构的改进》", 《工艺与测试》, no. 1, 31 December 2005 (2005-12-31), pages 53 - 54 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705373A (en) * | 2012-05-25 | 2012-10-03 | 湖南崇德工业科技有限公司 | Negative-pressure-resistant oil-gas sealing device of end-cover sliding bearing |
| CN103516111A (en) * | 2013-11-06 | 2014-01-15 | 江苏航天动力机电有限公司 | Structure for balancing interior negative pressure of motor |
| CN103762774A (en) * | 2013-12-31 | 2014-04-30 | 中船重工电机科技股份有限公司 | Externally-arranged type rotating rectifier alternating current motor with oil-leakage preventing device |
| CN106286606A (en) * | 2016-10-20 | 2017-01-04 | 陈雪刚 | End bracket type bearing |
| CN107350100A (en) * | 2017-07-21 | 2017-11-17 | 辽宁朗源环境科技有限公司 | A kind of high speed centrifugal atomization device |
| CN107350100B (en) * | 2017-07-21 | 2022-09-09 | 辽宁朗源环境科技有限公司 | High-speed centrifugal atomizer |
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Application publication date: 20120215 |