CN105276000A - Variable-frequency motor bearing - Google Patents
Variable-frequency motor bearing Download PDFInfo
- Publication number
- CN105276000A CN105276000A CN201510721970.5A CN201510721970A CN105276000A CN 105276000 A CN105276000 A CN 105276000A CN 201510721970 A CN201510721970 A CN 201510721970A CN 105276000 A CN105276000 A CN 105276000A
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- CN
- China
- Prior art keywords
- bearing
- outer ring
- frequency motor
- steel ball
- variable
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- 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.)
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Abstract
The invention discloses a variable-frequency motor bearing. The variable-frequency motor bearing comprises a bearing outer ring and a bearing inner ring, wherein a steel ball is arranged between the bearing outer ring and the bearing inner ring; cages are arranged at the left and right sides of the steel ball; annular sealing grooves are formed in the forward and reverse sides of the bearing outer ring; waterproof rubber rings are arranged in the sealing grooves; and dustproof covers are arranged above the waterproof rubber rings. The variable-frequency motor bearing has such advantages as simple structure, lower cost, use safety, stronger stability, low noise and longer service life, and can increase the bearing area of a rolling body through strictly controlling radial internal clearances among the bearing outer ring, the bearing inner ring and the steel ball, so that the bearing can bear higher load; and relatively smaller radial internal clearances can improve the support rigidity after the installation, and can reduce the vibration and the nose to prevent the slide of the steel ball corresponding to the inner and outer rings caused by inertia moment.
Description
Technical field
The present invention relates to power tool accessory field, particularly a kind of variable frequency motor bearing.
Background technique
Bearing (Bearing) is a kind of important spare part in contemporary machinery.Its major function is supported mechanical solid of rotation, reduces the friction factor in its movement process, and ensures its rotating accuracy.By the difference of motor element frictional property, bearing can be divided into rolling bearing and the large class of sliding bearing two.Wherein rolling bearing standardization, seriation, but its radial dimension, vibration & noise is comparatively large compared with sliding bearing, and price is also higher.Rolling bearing is generally made up of outer ring, inner ring, rolling element and retainer four part, is made up of strictly speaking outer ring, inner ring, rolling element, retainer, sealing, the large part of lubricant oil six.Mainly possess outer ring, inner ring, rolling element and just surely can mean rolling bearing.By the shape of rolling element, rolling bearing is divided into ball bearing and the large class of roller bearing two.
And well-known, on market, many machinery all adopt variable-frequency motor, by variable-frequency motor self-regulating rotary speed, save electric energy.Because variable-frequency motor is in the convenient superiority compared with common electric machine of VFC, be applied to widely in all kinds of machinery of industrial or agricultural and office, electric equipment.And the bearing great majority that some variable-frequency motors use are imported bearing, there is very high requirement to the quality of bearing and the vibration values of basic, normal, high frequency and the stability of waveform.
Summary of the invention
The object of this invention is to provide the variable frequency motor bearing that a kind of cost is lower, structure is simple, stability is high, noise is little.
The technical solution used in the present invention is:
A kind of variable frequency motor bearing, comprise bearing outer ring and bearing inner race, its innovative point is: be provided with steel ball between described bearing outer ring and bearing inner race, the left and right sides of described steel ball is provided with retainer, the positive and negative both sides of described bearing outer ring are provided with the seal groove of annular, be provided with water proof rubber circle in described seal groove, the top of described water proof rubber circle is also provided with dust-proof cover.
Further, described water proof rubber circle and described seal groove are inserted connection.
Further, described water proof rubber circle and dust-proof cover are all located in described seal groove.
Further, described bearing inner race roughness≤0.03um, the radial internal clearance of described bearing inner race and bearing outer ring is 0.004 ~ 0.008mm.
Beneficial effect of the present invention is as follows:
The present invention has that structure is simple, cost compared with low, use safety, stability compared with the advantage such as strong, noise is little, working life is longer, by the radial internal clearance scope between strict Control Shaft bearing outer-ring, bearing inner race, steel ball, the loaded area of rolling element can be increased, bearing is enable to bear larger load, relatively little radial internal clearance can make installation increase the rigidity of support afterwards, reduce vibration & noise, prevent the steel ball caused by moment of inertia relative to the slip of Internal and external cycle.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
Fig. 1 is structural representation of the present invention.
Embodiment
A kind of variable frequency motor bearing as shown in Figure 1, comprise bearing outer ring 1 and bearing inner race 2, steel ball 3 is provided with between described bearing outer ring 1 and bearing inner race 2, the left and right sides of described steel ball 3 is provided with retainer 4, the positive and negative both sides of described bearing outer ring 1 are provided with the seal groove 5 of annular, be provided with water proof rubber circle 6 in described seal groove 5, the top of described water proof rubber circle 6 is also provided with dust-proof cover 7.
Working principle of the present invention is:
In use, by the radial internal clearance scope between strict Control Shaft bearing outer-ring 1, bearing inner race 2, steel ball 3, the loaded area of rolling element can be increased, bearing is enable to bear larger load, relatively little radial internal clearance can make installation increase the rigidity of support afterwards, reduce vibration & noise, prevent the steel ball caused by moment of inertia relative to the slip of Internal and external cycle.
The above is the preferred embodiment of the present invention, can not limit the interest field of the present invention with this.It should be pointed out that for those skilled in the art, technological scheme of the present invention is modified or equivalent replacement, do not depart from protection scope of the present invention.
Claims (4)
1. a variable frequency motor bearing, comprise bearing outer ring and bearing inner race, it is characterized in that: between described bearing outer ring and bearing inner race, be provided with steel ball, the left and right sides of described steel ball is provided with retainer, the positive and negative both sides of described bearing outer ring are provided with the seal groove of annular, be provided with water proof rubber circle in described seal groove, the top of described water proof rubber circle is also provided with dust-proof cover.
2. a kind of variable frequency motor bearing according to claim 1, is characterized in that: described water proof rubber circle and described seal groove are inserted connection.
3. a kind of variable frequency motor bearing according to claim 1, is characterized in that: described water proof rubber circle and dust-proof cover are all located in described seal groove.
4. a kind of variable frequency motor bearing according to claim 1, is characterized in that: described bearing inner race roughness≤0.03um, and the radial internal clearance of described bearing inner race and bearing outer ring is 0.004 ~ 0.008mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510721970.5A CN105276000A (en) | 2015-10-31 | 2015-10-31 | Variable-frequency motor bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510721970.5A CN105276000A (en) | 2015-10-31 | 2015-10-31 | Variable-frequency motor bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105276000A true CN105276000A (en) | 2016-01-27 |
Family
ID=55145583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510721970.5A Pending CN105276000A (en) | 2015-10-31 | 2015-10-31 | Variable-frequency motor bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105276000A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849478A (en) * | 2017-04-01 | 2017-06-13 | 无锡康沃特变频电机有限公司 | A kind of pivot structure and motor rotor component and motor |
| CN107654491A (en) * | 2017-11-10 | 2018-02-02 | 江苏格林机械有限公司 | A kind of variable frequency motor bearing |
| CN108757722A (en) * | 2018-06-13 | 2018-11-06 | 苏州云联车控信息科技有限公司 | A kind of rolling bearing component |
| CN108953384A (en) * | 2018-09-05 | 2018-12-07 | 宁波艾德轴业有限公司 | A kind of variable frequency motor bearing |
-
2015
- 2015-10-31 CN CN201510721970.5A patent/CN105276000A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849478A (en) * | 2017-04-01 | 2017-06-13 | 无锡康沃特变频电机有限公司 | A kind of pivot structure and motor rotor component and motor |
| CN107654491A (en) * | 2017-11-10 | 2018-02-02 | 江苏格林机械有限公司 | A kind of variable frequency motor bearing |
| CN108757722A (en) * | 2018-06-13 | 2018-11-06 | 苏州云联车控信息科技有限公司 | A kind of rolling bearing component |
| CN108953384A (en) * | 2018-09-05 | 2018-12-07 | 宁波艾德轴业有限公司 | A kind of variable frequency motor bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160127 |