CN202309327U - Oil leakage prevention structure of large and medium high-speed motor sliding bearing - Google Patents
Oil leakage prevention structure of large and medium high-speed motor sliding bearing Download PDFInfo
- Publication number
- CN202309327U CN202309327U CN2011203733256U CN201120373325U CN202309327U CN 202309327 U CN202309327 U CN 202309327U CN 2011203733256 U CN2011203733256 U CN 2011203733256U CN 201120373325 U CN201120373325 U CN 201120373325U CN 202309327 U CN202309327 U CN 202309327U
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- Prior art keywords
- rotating shaft
- sliding bearing
- disc
- thread pair
- oil
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- Sliding-Contact Bearings (AREA)
Abstract
The utility model discloses an oil leakage prevention structure of a large and medium high-speed motor sliding bearing, which comprises a rotating shaft, a bearing inner cover and a linoleum sealing area arranged on the rotating shaft. A thread pair and an oil slinger which are inverse with the motor in rotating direction are sequentially arranged on the rotating shaft at the inner end of the linoleum sealing area, and an oil drainage hole and an oil drainage groove which are matched with the thread pair and the oil slinger are respectively arranged on the bearing inner cover. After the sealing structure is used, the difficult problem of oil leakage of the large and medium high-speed motor sliding bearing is solved thoroughly, running reliability of the motor is improved greatly, and accordingly good economic benefit and social benefit are created.
Description
Technical field
The utility model relates to technical field of motors, is specifically related to 2 utmost points (medium-sized, large-scale), 4 utmost points (large-scale) motor sliding bearing hermetically-sealed construction.
Background technology
Medium-and-large-sized high-speed electric expreess locomotive is because the rotating speed height all is to adopt sliding bearing structure, and homemade sliding bearing always has oil leakage phenomenon, and professional sliding bearing manufacturer also is at a loss what to do to this.In sliding bearing structure design in the past, generally adopt secondary floating seal, the sealing of one-level malthoid, the structure of recessing on the machine shaft; But because the bearing inboard all is a negative pressure; Negative pressure can directly suck oil in the motor body, gets rid of on motor windings, has shortened motor useful life greatly.Fact proved that original design satisfied not the requirement of energy-saving and environment friendly.
Summary of the invention
The purpose of the utility model is to provide a kind of medium-and-large-sized high-speed electric expreess locomotive sliding bearing leak-proof arrangement that is used for; This structure can effectively solve medium-and-large-sized high-speed electric expreess locomotive sliding bearing leakage of oil problem; Play key effect useful life to prolonging motor, realized the operation reliably and with long-term of motor.
For achieving the above object, the technical scheme of the utility model is:
Medium-and-large-sized high-speed electric expreess locomotive sliding bearing leak-proof arrangement; Comprise rotating shaft and internal bearing cover; Comprise the malthoid seal area that is arranged in the rotating shaft; In the inner rotating shaft of malthoid seal area, be provided with the screw thread pair opposite, disc successively, be respectively equipped with the draining hole and the drain pan that cooperate with screw thread pair, disc on the internal bearing cover with motor steering.
The further improvement project of the utility model is that the external diameter of said disc is greater than rotating shaft external diameter 5-80mm.
The utility model further improvement project is, the sealing that cooperatively interacts of disc in the rotating shaft and the drain pan on the internal bearing cover, the sealing that cooperatively interacts of screw thread pair in the rotating shaft and the draining hole on the internal bearing cover.
The beneficial effect of the utility model:
The lubricating oil that major part is leaked in the disc in the rotating shaft and the combination of the drain pan on the internal bearing cover stops; Form once sealing; Produce a barotropic field and go out the screw thread pair opposite with motor steering at next grade Handcart capable of climbing step of disc; This barotropic field can stop that lubricating oil gets into the malthoid sealing area, and this is a secondary seal.After using the sealing structure, thoroughly solved medium-and-large-sized high-speed electric expreess locomotive sliding bearing leakage of oil hard nut to crack, increased the motor reliability of operation greatly, thereby createed economic benefit and social benefit.
Description of drawings
Fig. 1 is the utility model partial cutaway schematic.
Embodiment
As shown in Figure 1; The utility model comprises rotating shaft 4 and internal bearing cover 5; Also comprise the malthoid seal area 6 that is arranged in the rotating shaft; In the rotating shaft of malthoid seal area 6 the inners, be provided with the screw thread pair 2 opposite, disc 1 successively, be respectively equipped with the draining hole 3 and the drain pan 7 that cooperate with screw thread pair 2, disc 1 on the internal bearing cover 5 with motor steering.Drain pan 7 on said disc 1 and the internal bearing cover 5 and the draining hole 3 on screw thread pair 2 and the internal bearing cover 5 are for being sealed and matched.The external diameter of said disc 1 is greater than rotating shaft external diameter 10mm.
During assembling, earlier internal bearing cover is installed on the sliding bearing, drain pan and the draining hole on the internal bearing cover must cooperatively interact with disc and the screw thread pair in the rotating shaft simultaneously, reaches effective secondary seal.
Though the utility model is described with reference to the above embodiments; But those of ordinary skill in the art; Will be appreciated that above instance only is to be used for explaining the utility model; Should understand and wherein can make variations and modifications and do not break away from the utility model in a broad sense; So be not as qualification, as long as in the connotation scope of the utility model, to the variation of above-described embodiment, the protection range that distortion all will fall into the utility model claim to the utility model.
Claims (4)
1. medium-and-large-sized high-speed electric expreess locomotive sliding bearing leak-proof arrangement; Comprise rotating shaft and internal bearing cover; Comprise the malthoid seal area that is arranged in the rotating shaft; It is characterized in that: in the inner rotating shaft of malthoid seal area, be provided with the screw thread pair opposite, disc successively, be respectively equipped with the draining hole and the drain pan that cooperate with screw thread pair, disc on the internal bearing cover with motor steering.
2. medium-and-large-sized high-speed electric expreess locomotive sliding bearing leak-proof arrangement as claimed in claim 1, it is characterized in that: the external diameter of said disc is greater than rotating shaft external diameter 5-80mm.
3. medium-and-large-sized high-speed electric expreess locomotive sliding bearing leak-proof arrangement as claimed in claim 1, it is characterized in that: disc in the rotating shaft and the drain pan on the internal bearing cover are for being sealed and matched.
4. medium-and-large-sized high-speed electric expreess locomotive sliding bearing leak-proof arrangement as claimed in claim 1 is characterized in that: screw thread pair in the rotating shaft and the draining hole on the internal bearing cover are for being sealed and matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203733256U CN202309327U (en) | 2011-09-30 | 2011-09-30 | Oil leakage prevention structure of large and medium high-speed motor sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203733256U CN202309327U (en) | 2011-09-30 | 2011-09-30 | Oil leakage prevention structure of large and medium high-speed motor sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202309327U true CN202309327U (en) | 2012-07-04 |
Family
ID=46378140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203733256U Expired - Lifetime CN202309327U (en) | 2011-09-30 | 2011-09-30 | Oil leakage prevention structure of large and medium high-speed motor sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202309327U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878413A (en) * | 2012-09-27 | 2013-01-16 | 宁波狮球通风机电有限公司 | Lubricating structure of motor |
| CN102983663A (en) * | 2012-11-30 | 2013-03-20 | 南阳防爆集团股份有限公司 | Self-lubricating sliding bearing for high-speed large-power motor |
| CN103545974A (en) * | 2013-10-23 | 2014-01-29 | 中达电机股份有限公司 | Lubricating structure of bearing assembly of vertical motor for water conservancy and biochemistry |
| CN108494144A (en) * | 2018-05-04 | 2018-09-04 | 苏州瑞纳电气科技有限公司 | A kind of axle sealing structure of the grease lubrication of motor axis |
-
2011
- 2011-09-30 CN CN2011203733256U patent/CN202309327U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878413A (en) * | 2012-09-27 | 2013-01-16 | 宁波狮球通风机电有限公司 | Lubricating structure of motor |
| CN102983663A (en) * | 2012-11-30 | 2013-03-20 | 南阳防爆集团股份有限公司 | Self-lubricating sliding bearing for high-speed large-power motor |
| CN103545974A (en) * | 2013-10-23 | 2014-01-29 | 中达电机股份有限公司 | Lubricating structure of bearing assembly of vertical motor for water conservancy and biochemistry |
| CN103545974B (en) * | 2013-10-23 | 2015-09-30 | 中达电机股份有限公司 | The lubrication system of the bearing assembly of water conservancy and biochemistry vertical machine |
| CN108494144A (en) * | 2018-05-04 | 2018-09-04 | 苏州瑞纳电气科技有限公司 | A kind of axle sealing structure of the grease lubrication of motor axis |
| CN108494144B (en) * | 2018-05-04 | 2020-04-07 | 苏州瑞纳电气科技有限公司 | Grease lubricated shaft sealing structure of motor transmission shaft |
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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: WOLONG ELECTRIC HUAIAN QINGJIANG MOTOR CO., LTD. Free format text: FORMER NAME: JIANGSU QINGJIANG ELECTRIC MOTOR MANUFACTURING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 223300 No. 2 Guangzhou North Road, Huaian Economic Development Zone, Jiangsu Patentee after: Electric Huaian, Wolong Qingjian River Electric Machine Co., Ltd Address before: 223300 No. 2 Guangzhou North Road, Huaian Economic Development Zone, Jiangsu Patentee before: Jiangsu Qingjiang Electric Motor Manufacturing Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |
|
| CX01 | Expiry of patent term |