CN201435642Y - Automatic compensation structure for motor rotor double bearing clearance - Google Patents
Automatic compensation structure for motor rotor double bearing clearance Download PDFInfo
- Publication number
- CN201435642Y CN201435642Y CN200920043458XU CN200920043458U CN201435642Y CN 201435642 Y CN201435642 Y CN 201435642Y CN 200920043458X U CN200920043458X U CN 200920043458XU CN 200920043458 U CN200920043458 U CN 200920043458U CN 201435642 Y CN201435642 Y CN 201435642Y
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- CN
- China
- Prior art keywords
- contact ball
- angular contact
- ball bearings
- compensation structure
- spring
- 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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- Motor Or Generator Frames (AREA)
- Support Of The Bearing (AREA)
Abstract
The utility model discloses an automatic compensation structure for a motor rotor double bearing clearance, which comprises a positioning structure and a compensation structure, wherein the positioning structure comprises a sleeve, a gland, angular contact ball bearings and a spacer sleeve, which are nested between the inner hole of an end cover and a rotor shaft and are locked by round nuts, andthe large taper ends of the angular contact ball bearings are arranged outwards. The compensation structure is arranged between the outer rims of the two angular contact ball bearings and consists ofan annular flat gasket, a seat gasket and a pressure spring, and the pressure spring is uniformly and axially arranged between the annular flat gasket and the seat gasket. By utilizing the elastic stress of the spring, the utility model pushes the flat gasket and the seat gasket which are in clearance fit with the end cover to axially move so as to automatically prop against the outer rims of theangular contact ball bearings, thereby ensuring the angular contact ball bearings are in non-clearance fit so as to effectively improve the rotating quality of the motor rotor bearing and reduce the rotating noise.
Description
Technical field
The utility model relates to the compound supported clearance of a kind of rotor and adjusts structure, the structure of the compound supported clearance of particularly a kind of automatic small electromotor rotor.
Background technology
Motor rotates the mechanical abrasion that produces and mainly concentrates on the rotor bearing, and the rotor bearing of wearing and tearing must reduce the rotor rotation precision and increase rotational noise if can not get effective compensation.The motor bigger to service load becomes duplex with the rotor support design usually, and two angular contact ball bearings that direction is opposing promptly are installed on same supporting point.For the gap of play between the inside and outside circle of angular contact ball bearing and rotation wearing and tearing generation, prior art is regulated by the gland axial location and is eliminated.But this structure can only can realize just by manual adjustment under stopped status that the structure that seems during practical application is unreasonable, and it is convenient inadequately to regulate, and promptness is relatively poor.
The utility model content
The utility model is primarily aimed at the deficiencies in the prior art, proposes a kind of simple in structure, compensation in time, the compound supported clearance automatic compensation structure of the rotor of even regulation.
The utility model is achieved through the following technical solutions technical goal.
The compound supported clearance automatic compensation structure of rotor, it comprises location structure and collocation structure.Described location structure comprises suit between end cap endoporus and the armature spindle, and cover, gland, angular contact ball bearing and spacer by round nut locking, and angular contact ball bearing is installed outwardly with the big end of circular cone.Its improvements are: described collocation structure is between two angular contact ball bearing outer rings, and it is made of jointly the column spring of uniform axial installation between the annular plain cushion of parallel installation and the seat cushion.
In the said structure, spring is a compression spring, and spring is the ring-type plain cushion of the parallel installation of basic roof pressure with seat cushion.Plain cushion and seat cushion outer wall and end cap endoporus matched in clearance.
The utility model compared with prior art has following good effect:
1, elastic compensating is simple in structure, makes easily;
2, the elastic compensating structure is done uninterrupted compensation, and the compensation promptness is good, makes rotor bearing remain the best fit state, and rotation precision height, noise are low;
3, the elastic compensating structure that is in place need not shut down and be made the artificial angular contact ball bearing fit clearance of adjusting, and saves cost of upkeep.
Description of drawings
Accompanying drawing is the utility model structural profile schematic diagram.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the utility model is described in further detail.
Be the utility model structural representation shown in the accompanying drawing, it is the motor embodiment of horizontal type structure, comprises location structure and collocation structure two parts altogether.Described location structure comprises suit between end cap 8 endoporus and the armature spindle 1, and cover 3, gland 4, angular contact ball bearing 5 and spacer 7 by round nut 2 locking, be separated by by spacer 7 between the angular contact ball bearing 5, spacer 7 rotates with axle 1 between two angular contact ball bearing 5 inner rings, and the big end of the taper hole of two angular contact ball bearings 5 outwardly.Described collocation structure is between two angular contact ball bearing 5 outer rings, it is made of jointly the column spring 9 of uniform axial installation between the annular plain cushion 6 of parallel installation and the seat cushion 10, spring 9 is a compression spring, utilize spring 9 elasticity tensions to promote to move axially with the plain cushion 6 and the seat cushion 10 of end cap 8 matched in clearance, make it the outer ring of automatic roof pressure angular contact ball bearing 5, guarantee that angular contact ball bearing 5 is in no gap all the time and cooperates.This elastic compensating structure can compensate automatically in motor operation course and in time compensate the supporting abrasion gap, effectively improves rotor supporting rotating mass, alleviates rotational noise.
Claims (2)
1, the compound supported clearance automatic compensation structure of a kind of rotor, it comprises location structure and collocation structure; Described location structure comprises suit between end cap (8) endoporus and the armature spindle (1), and passes through cover (3), gland (4), angular contact ball bearing (5) and the spacer (7) of round nut (2) locking, and angular contact bearing (5) is installed outwardly with the big end of circular cone; It is characterized in that: described collocation structure holds between (5) outer ring between two angular contact ball bearings, and it is made of jointly the column spring (9) of uniform axial installation between the annular plain cushion (6) of parallel installation and the seat cushion (10).
2, the compound supported clearance automatic compensation structure of rotor according to claim 1 is characterized in that: described plain cushion (6) and seat cushion (10) outer wall and end cap (8) endoporus matched in clearance, spring (9) is a compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920043458XU CN201435642Y (en) | 2009-07-01 | 2009-07-01 | Automatic compensation structure for motor rotor double bearing clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920043458XU CN201435642Y (en) | 2009-07-01 | 2009-07-01 | Automatic compensation structure for motor rotor double bearing clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201435642Y true CN201435642Y (en) | 2010-03-31 |
Family
ID=42054456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920043458XU Expired - Fee Related CN201435642Y (en) | 2009-07-01 | 2009-07-01 | Automatic compensation structure for motor rotor double bearing clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201435642Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541884A (en) * | 2019-10-09 | 2019-12-06 | 苏州三光科技股份有限公司 | Structure for automatically eliminating bearing play of guide wheel |
| CN110985552A (en) * | 2019-12-26 | 2020-04-10 | 广州恩梯恩裕隆传动系统有限公司 | Tool for eliminating pre-tightening force of angular contact shaft |
-
2009
- 2009-07-01 CN CN200920043458XU patent/CN201435642Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541884A (en) * | 2019-10-09 | 2019-12-06 | 苏州三光科技股份有限公司 | Structure for automatically eliminating bearing play of guide wheel |
| CN110985552A (en) * | 2019-12-26 | 2020-04-10 | 广州恩梯恩裕隆传动系统有限公司 | Tool for eliminating pre-tightening force of angular contact shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100331 Termination date: 20120701 |