CN203784102U - Ball bearing for high-speed motor - Google Patents
Ball bearing for high-speed motor Download PDFInfo
- Publication number
- CN203784102U CN203784102U CN201420148121.6U CN201420148121U CN203784102U CN 203784102 U CN203784102 U CN 203784102U CN 201420148121 U CN201420148121 U CN 201420148121U CN 203784102 U CN203784102 U CN 203784102U
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- CN
- China
- Prior art keywords
- outer ring
- inner ring
- ball
- curvature
- ball bearing
- 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
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Abstract
The utility model provides a ball bearing for a high-speed motor. The ball bearing comprises an inner ring, an outer ring, a ball and a retainer, wherein an outer ring channel and an inner ring channel are respectively formed in the outer ring and the inner ring, and the outer ring and the inner ring oppositely and movably clamp the ball in the outer ring channel and the inner ring channel; an anti-shedding layer is arranged on each of the outer ring and the inner ring, and anti-shedding openings smoothly abutted with the inner ring channel and the outer ring channel are formed in the positions, corresponding to the inner ring channel and the outer ring channel, of the anti-shedding openings; the coefficient of curvature of the inner ring channel is 1.01-1.02, and the coefficient of curvature of the outer ring channel is 1.03-1.04. By decreasing the coefficients of curvature of the inner ring channel and the outer ring channel, the speed of temperature rise caused by frictional heating is low. As the anti-shedding layers are arranged on the inner ring and the outer ring, the ball is not likely to shed.
Description
Technical field
The utility model relates to a kind of ball bearing, particularly a kind of ball bearing for high-speed motor.
Background technique
Bearing is in order to supporting and positioning rotating shaft, so that it can do the rotational motion of expecting, bearing generally can be divided into sliding bearing or rolling bearing, face contact movement is done in sliding bearing and rotating shaft, and rolling bearing and rotating shaft are done a little or line contact movement, generally speaking, because the area of contact of rolling bearing is little, admittedly there is more smooth action effect.Rolling bearing is widely used between various sports equipments, to rotate.Rolling bearing comprises the assemblies such as inner ring, outer ring, rolling element, retainer, and rolling element is arranged between outer ring and inner ring, and locates to carry out roll rotational by retainer.Rolling bearing is generally categorized as ball bearing, needle bearing or roller bearing with rolling element pattern, with ball bearing, can insert appropriate lubricant body, it can be lubricant oil or lubricating grease, lubricant body is evenly coated rolling element surface to reduce surface friction drag, guarantees that rolling bearing runs well.
At present, ball bearing is in operation process, and rolling element and Internal and external cycle raceway groove respectively form an Elliptical Contacts area, groove curvature value is generally greater than 1.04, because high-speed motor rotating speed is very high, in such ball bearing, ball and raceway groove area of contact are larger, cause bearing rotary dynamic temperature to rise very fast.On the other hand, if curvature value is too small, although can reduce area of contact to reduce temperature, can cause ball easily the situation about coming off in situation such as being impacted.
Model utility content
The technical problems to be solved in the utility model is to rise defect faster in order to overcome prior art bearing rotary dynamic temperature, provides a kind of and rotates temperature rise slowly and the ball bearing for high-speed motor of ball difficult drop-off.
The utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of ball bearing for high-speed motor, it includes an inner ring, one outer ring, one ball and a retainer, on described outer ring and described inner ring, be respectively arranged with an outer ring raceway and a bear inner ring grooved railway, described outer ring and described inner ring in opposite directions and the movable described ball of clamping in described outer ring raceway and described bear inner ring grooved railway, its feature is, on described outer ring and described inner ring, be respectively arranged with an anti-delamination, the described anti-delamination position corresponding with described bear inner ring grooved railway and described outer ring raceway is provided with the anticreep mouth smoothly docking with described bear inner ring grooved railway and described outer ring raceway,
The coefficient of curvature of described bear inner ring grooved railway is 1.01～1.02, and the coefficient of curvature of described outer ring raceway is 1.03～1.04.
That is to say, anti-delamination has been equivalent to deepen the degree of depth of raceway groove on inner ring, outer ring, makes more difficult drop-off of ball; On the other hand, the coefficient of curvature of inner ring, outer ring raceway itself is reduced, can reduce the area of contact of inner ring, outer ring raceway and ball, the temperature rise speed that frictional heating is caused is slower.
Preferably, described anti-delamination is made up of Ni-based oxidation-resistant alloy.Herein, the rigidity of Ni-based oxidation-resistant alloy and heat-conducting property are all very high, and itself is comparatively heat-resisting, the heat in bear inner ring grooved railway and outer ring raceway can be derived and are fallen apart but.
Preferably, the coefficient of curvature of the interface of described anticreep mouth and described bear inner ring grooved railway or described outer ring raceway is 1.10.Herein, the interface coefficient of curvature that anticreep mouth and bear inner ring grooved railway or outer ring raceway are set is larger, can, ball being worn and torn little in the situation that, its zone of action be limited.
Positive progressive effect of the present utility model is: slower by reducing the temperature rise speed that the coefficient of curvature of inner ring, outer ring raceway itself causes frictional heating; By anti-delamination is set on inner ring and outer ring, make ball difficult drop-off.
Brief description of the drawings
Fig. 1 is the ball bearing structure schematic diagram for high-speed motor of the utility model preferred embodiment.
Embodiment
Lift a preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the utility model that intactly illustrates.
Fig. 1 is the ball bearing structure schematic diagram for high-speed motor of the present embodiment, and as shown in Figure 1, the ball bearing for high-speed motor that the present embodiment relates to includes:
Inner ring 1, outer ring 2, ball 4 and retainer 3, on outer ring 2 and inner ring 1, be respectively arranged with outer ring raceway 21 and bear inner ring grooved railway 11, outer ring 2 and inner ring 1 in opposite directions and movable clamping ball 4 in outer ring raceway 21 and bear inner ring grooved railway 11, on outer ring 2 and inner ring 1, be respectively arranged with an anti-delamination 5, anti-delamination 5 position corresponding with bear inner ring grooved railway 11 and outer ring raceway 21 is provided with the anticreep mouth smoothly docking with bear inner ring grooved railway 11 and outer ring raceway 21.
The coefficient of curvature of bear inner ring grooved railway 11 is 1.01～1.02, and the coefficient of curvature of outer ring raceway 21 is 1.03～1.04.
Anti-delamination 5 is made up of Ni-based oxidation-resistant alloy.
The coefficient of curvature of the interface of anticreep mouth and bear inner ring grooved railway 11 or outer ring raceway 21 is 1.10.
The effect reducing in order to characterize the ball bearing temperature rise for high-speed motor that the present embodiment relates to, its corresponding data is as shown in table 1～2:
Table 1 existing ball bearing (bear inner ring grooved railway coefficient of curvature is 1.04, and outer ring raceway coefficient of curvature is 1.08) temperature rise data as a comparison case:
Ball bearing (bear inner ring grooved railway coefficient of curvature is 1.02, and outer ring raceway coefficient of curvature is 1.04) the temperature rise data of table 2 the present embodiment:
From table 1～2, can find out, the temperature rise of the ball bearing of the present embodiment obviously reduces with respect to prior art.
Although more than described embodiment of the present utility model, it will be understood by those of skill in the art that this only illustrates, protection domain of the present utility model is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present utility model and essence, can make various changes or modifications to these mode of executions, but these changes and amendment all fall into protection domain of the present utility model.
Claims (3)
1. the ball bearing for high-speed motor, it includes an inner ring, one outer ring, one ball and a retainer, on described outer ring and described inner ring, be respectively arranged with an outer ring raceway and a bear inner ring grooved railway, described outer ring and described inner ring in opposite directions and the movable described ball of clamping in described outer ring raceway and described bear inner ring grooved railway, it is characterized in that, on described outer ring and described inner ring, be respectively arranged with an anti-delamination, the described anti-delamination position corresponding with described bear inner ring grooved railway and described outer ring raceway is provided with the anticreep mouth smoothly docking with described bear inner ring grooved railway and described outer ring raceway,
The coefficient of curvature of described bear inner ring grooved railway is 1.01～1.02, and the coefficient of curvature of described outer ring raceway is 1.03～1.04.
2. the ball bearing for high-speed motor as claimed in claim 1, is characterized in that, described anti-delamination is made up of Ni-based oxidation-resistant alloy.
3. the ball bearing for high-speed motor as described in any one in claim 1～2, is characterized in that, the coefficient of curvature of the interface of described anticreep mouth and described bear inner ring grooved railway or described outer ring raceway is 1.10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420148121.6U CN203784102U (en) | 2014-03-28 | 2014-03-28 | Ball bearing for high-speed motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420148121.6U CN203784102U (en) | 2014-03-28 | 2014-03-28 | Ball bearing for high-speed motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203784102U true CN203784102U (en) | 2014-08-20 |
Family
ID=51320293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420148121.6U Expired - Fee Related CN203784102U (en) | 2014-03-28 | 2014-03-28 | Ball bearing for high-speed motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203784102U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939829A (en) * | 2016-08-23 | 2018-04-20 | 宋震天 | A kind of motor bearings |
-
2014
- 2014-03-28 CN CN201420148121.6U patent/CN203784102U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939829A (en) * | 2016-08-23 | 2018-04-20 | 宋震天 | A kind of motor bearings |
| CN107939829B (en) * | 2016-08-23 | 2019-05-17 | 扬州英泰机械有限公司 | A kind of motor bearings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20170328 |