CN201860198U - Axial pre-tightening structure for rolling bearing - Google Patents
Axial pre-tightening structure for rolling bearing Download PDFInfo
- Publication number
- CN201860198U CN201860198U CN2010205910091U CN201020591009U CN201860198U CN 201860198 U CN201860198 U CN 201860198U CN 2010205910091 U CN2010205910091 U CN 2010205910091U CN 201020591009 U CN201020591009 U CN 201020591009U CN 201860198 U CN201860198 U CN 201860198U
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- Prior art keywords
- bearing
- spring
- deep groove
- groove ball
- outer ring
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Abstract
The utility model relates to an axial pre-tightening structure for a rolling bearing. The structure comprises a deep groove ball bearing, a bearing sleeve, a spring, a gasket and a bearing outer lid. The inner ring of the deep groove ball bearing is fastened on a main shaft and rotates with the main shaft, and the outer ring of the deep groove ball bearing and the bearing sleeve are in loose connection; the spring is fixed in the bearing outer lid, one end of the spring is propped against the gasket, the gasket and the bearing outer ring are in contact with each other, and the elasticity of the spring is transmitted to the bearing outer ring through the gasket. The pre-tightening force is generated without external axial force, so that a bearing roller can not skid and whistle during motion, thereby improving operation working conditions of the bearing and prolonging the service life of the bearing.
Description
Technical field
The utility model relates to bearing arrangement, relates in particular to the axial pre-pressing structure of rolling bearing.
Background technology
Motor bearings has two kinds on sliding bearing and rolling bearing.Rolling bearing often has the minimum load requirement, if do not reach minimum load, the wearing and tearing of bearing will increase, and bearing life will shorten.
The utility model content
The purpose of this utility model is to overcome rolling bearing and reaches in the situation of the no extraneous axial force deficiency less than minimum load, thereby provides a kind of rolling bearing axial pre-pressing structure, and motor bearings is added a load in advance, satisfies the minimum load requirement of rolling bearing.
The technical solution of the utility model is as follows:
The axial pre-pressing structure of a kind of rolling bearing is made of deep groove ball bearing, bearing holder (housing, cover), spring, pad and bearing end cover; The bearing inner race of deep groove ball bearing is fastened on the main shaft and rotates with main shaft, the loosening connection between the bearing outer ring of deep groove ball bearing and the bearing holder (housing, cover); Spring is fixed in the bearing end cover, and an end of spring withstands on the pad, and pad contacts with bearing outer ring, by pad the elastic force of spring is delivered to bearing outer ring.
Its further technical scheme is: described number of springs is 6 or 8, evenly distributes on the circumference of bearing end cover.
And its further technical scheme is: be processed with the support holes of placing spring on the described bearing end cover.
Useful technique effect of the present utility model is:
The utility model makes the motor rolling bearing also can produce pretightning force under the situation of no extraneous axial force, and the motor rolling bearing is added a load in advance, satisfies the minimum load requirement of rolling bearing.Make the roller of bearing non-slip when motion, do not send howling, can improve the operating condition of bearing, improve the life-span of bearing.The utility model is simple in structure, compact, can be according to measuring and calculating to applying the about 300kg of pretightning force as 6330 bearings, and action effect is obvious.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
As shown in Figure 1, the utility model is made of deep groove ball bearing 1, bearing holder (housing, cover) 2, spring 3, pad 4 and bearing end cover 5.The bearing inner race 6 of deep groove ball bearing 1 is fastened on the main shaft 8 and rotates with main shaft 8, and is loose relatively right between the bearing outer ring 7 of deep groove ball bearing 1 and the bearing holder (housing, cover) 2, and less displacement can be arranged.Spring 3 is fixed on 5 li of bearing end covers, and an end of spring 3 withstands on the pad 4, and pad 4 contacts with bearing outer ring 7, by pad 4 elastic force of spring 3 is delivered to bearing outer ring 7.Spring 3 quantity are 6 or 8, evenly distribute on the circumference of bearing end cover 7.
The utility model is higher to the coherence request of spring 3, and elastic energy of deformation meets the demands.It is high that the flatness of pad 4 and fineness are wanted.To process the support holes 9 of placing spring 3 on the bearing end cover 5, require processing smooth.The tolerance of 2 pairs of bearing outer rings 7 of bearing holder (housing, cover) is appropriate.
Above-described only is preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite that does not break away from spirit of the present utility model and design, all should think to be included within the protection range of the present utility model.
Claims (3)
1. the axial pre-pressing structure of rolling bearing is characterized in that: be made of deep groove ball bearing (1), bearing holder (housing, cover) (2), spring (3), pad (4) and bearing end cover (5); The bearing inner race (6) of deep groove ball bearing (1) is fastened on main shaft (8) and goes up with main shaft (8) rotation, the loosening connection between the bearing outer ring (7) of deep groove ball bearing (1) and the bearing holder (housing, cover) (2); Spring (3) is fixed on bearing end cover (5) lining, and an end of spring (3) withstands on the pad (4), and pad (4) contacts with bearing outer ring (7), by pad (4) elastic force of spring (3) is delivered to bearing outer ring (7).
2. according to the axial pre-pressing structure of the described rolling bearing of claim 1, it is characterized in that: described spring (3) quantity is 6 or 8, evenly distributes on the circumference of bearing end cover (7).
3. according to the axial pre-pressing structure of the described rolling bearing of claim 1, it is characterized in that: be processed with the support holes (9) of placing spring (3) on the described bearing end cover (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205910091U CN201860198U (en) | 2010-10-29 | 2010-10-29 | Axial pre-tightening structure for rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205910091U CN201860198U (en) | 2010-10-29 | 2010-10-29 | Axial pre-tightening structure for rolling bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201860198U true CN201860198U (en) | 2011-06-08 |
Family
ID=44105997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205910091U Expired - Lifetime CN201860198U (en) | 2010-10-29 | 2010-10-29 | Axial pre-tightening structure for rolling bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201860198U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974972A (en) * | 2012-12-05 | 2013-03-20 | 中国南方航空工业(集团)有限公司 | Bearing constant-pressure pretightening device and selective assembly method thereof |
| CN103029020A (en) * | 2012-06-18 | 2013-04-10 | 上海崇明机床厂 | Device for improving precision of steel ball machine tool plate groove |
| CN103532288A (en) * | 2013-10-23 | 2014-01-22 | 中达电机股份有限公司 | Bearing preloading device for electric motor |
| CN104325406A (en) * | 2014-09-19 | 2015-02-04 | 新昌县嘉瑞机械有限公司 | Dresser self-warning device for groove grinder on outer ring of ball bearing |
| CN104500587A (en) * | 2014-12-18 | 2015-04-08 | 重庆赛力盟电机有限责任公司 | Axial pretensioner of hydroturbine or motor bearing |
-
2010
- 2010-10-29 CN CN2010205910091U patent/CN201860198U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103029020A (en) * | 2012-06-18 | 2013-04-10 | 上海崇明机床厂 | Device for improving precision of steel ball machine tool plate groove |
| CN102974972A (en) * | 2012-12-05 | 2013-03-20 | 中国南方航空工业(集团)有限公司 | Bearing constant-pressure pretightening device and selective assembly method thereof |
| CN103532288A (en) * | 2013-10-23 | 2014-01-22 | 中达电机股份有限公司 | Bearing preloading device for electric motor |
| CN104325406A (en) * | 2014-09-19 | 2015-02-04 | 新昌县嘉瑞机械有限公司 | Dresser self-warning device for groove grinder on outer ring of ball bearing |
| CN104500587A (en) * | 2014-12-18 | 2015-04-08 | 重庆赛力盟电机有限责任公司 | Axial pretensioner of hydroturbine or motor bearing |
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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: SEC ELECTRIC MACHINERY CO., LTD. Free format text: FORMER NAME: WUXI HEC ELECTRIC MACHINERY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 214131 No. 777 East high wave road, Jiangsu, Wuxi Patentee after: SEC Electric Machinery Co., Ltd. Address before: 214131, Wuxi, Binhu province Wuxi Jiangsu Development Zone, No. 2, Kazakhstan power Patentee before: Wuxi HEC Electric Machinery Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110608 |