CN103780002A - Double-supported motor output end structure - Google Patents
Double-supported motor output end structure Download PDFInfo
- Publication number
- CN103780002A CN103780002A CN201210411206.4A CN201210411206A CN103780002A CN 103780002 A CN103780002 A CN 103780002A CN 201210411206 A CN201210411206 A CN 201210411206A CN 103780002 A CN103780002 A CN 103780002A
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- China
- Prior art keywords
- bearings
- motor
- output shaft
- bearing
- shaft end
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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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- Rolling Contact Bearings (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a double-supported motor output end structure. The double-supported motor output end structure comprises a motor shaft, a left end cover, a left pressing cover and bearings; a near output shaft end of the motor shaft are sheathed with two identically-structured radial-thrust ball bearings of which the parameters are consistent. According to the double-supported motor output end structure of the invention, the two bearings are sleeved on the near output shaft end of the motor shaft in a manner that tapered large end surfaces of the inner holes of the outer rings of the bearings are back to back; an adjusting gasket is arranged between the outer rings of the two bearings; the inner holes of the inner rings of the two bearings are in clearance fit with the near output shaft end of the motor shaft; the left side of the two bearings is sheathed with a fastening nut and a spacer bush; and the fastening nut and the spacer bush fasten the inner rings of the two bearings at the near output shaft end of the motor shaft. With the double-supported motor output end structure of the invention adopted, pre-deformation can be generated between bearing rolling bodies and the inner/outer rings, and therefore, the stiffness and rotation accuracy of the bearings can be improved, vibration and noise of the motor shaft can be decreased; and motor output shaft end back-up bearing fit clearance can be timely adjusted and compensated, and motor rotation precision can be maintained.
Description
Technical field
The present invention relates to a kind of drive shaft support structure for use, particularly a kind of motor output shaft end rotation supporting structure.
Background technology
Common motor rotates outputting power with axle, and the frictional resistance while rotation in order to reduce motor reel is provided with rotating support on motor reel under regular situation.The rotating support of existing common motor is single-row ball-bearing, and this supporting structure is simple, rotation is flexible, can meet motor reel and rotate requirement.But, before and after the motor of this structure, supporting is because of position difference, its load is also different, it is larger that the ball bearing that is particularly in motor output shaft end is born load, its wear extent is also large than the other end, if the fit clearance that wearing and tearing cause can not get adjusting in time and compensation, will cause the reduction of motor rotation precision, vibration and noise to increase.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide one can adjust in time and compensated motor output shaft end block bearing fit clearance, keep the motor output end structure of the compound supporting of employing of motor rotation precision, use this supporting structure, can make to produce predeformation between bearing roller and Internal and external cycle, can improve like this rigidity and the rotation precision of bearing, reduce vibration and the noise of motor reel.
The present invention is achieved through the following technical solutions technical goal.
Adopt the motor output end structure of compound supporting, it comprises motor reel, left end cap, left gland, bearing, on the nearly output shaft end of described motor reel, be set with two bearings that structure is identical, parameter is consistent, described bearing is angular contact ball bearing, its outer ring and left end cap endoporus interference fit, its improvements are: described two bearings are sleeved on the nearly output shaft end of motor reel so that outer ring hole taper large end face is opposing, are provided with adjustment pad between two bearing outer rings; Described two bearing inner race endoporus and the nearly output shaft end matched in clearance of motor reel, at the left side of two bearings suit clamp nut, spacer, two bearing inner races are fastened on the nearly output shaft end of motor reel by described clamp nut, spacer.
The present invention compared with prior art, has following good effect:
1. can make to produce predeformation between bearing roller and Internal and external cycle, can improve like this rigidity and the rotation precision of bearing, reduce vibration and the noise of motor reel.
2. adjust in time and compensated motor output shaft end block bearing fit clearance, keep motor rotation precision.
Accompanying drawing explanation
Accompanying drawing is structural representation of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments below.
The motor output end structure of the compound supporting of employing shown in the drawings, it comprises motor reel 7, left end cap 1, left gland 3, bearing 4, on the nearly output shaft end of motor reel 7, be set with two bearings that structure is identical, parameter is consistent 4, bearing 4 is angular contact ball bearing, its outer ring and left end cap 1 endoporus interference fit, in the present invention, two bearings 4 are sleeved on the nearly output shaft end of motor reel 7 so that outer ring hole taper large end face is opposing, be provided with and adjust pad 2 between two bearing 4 outer rings; Two bearing 4 inner ring endoporus and the nearly output shaft end matched in clearance of motor reel 7, at the left side of two bearings 4 suit clamp nut 6, spacer 5, two bearing 4 inner rings are fastened on the nearly output shaft end of motor reel 7 by clamp nut 6, spacer 5.
The present invention, by adjusting the position of clamp nut 6, adjusts the axial location of two bearing 4 inner rings, can make to produce predeformation between bearing 4 rolling elements and Internal and external cycle, can improve like this bearing 4 rigidity and rotation precision, reduces motor reel 7 and vibrates and noise; Also can adjust in time and compensated motor output shaft end block bearing fit clearance, keep motor rotation precision.
Claims (1)
1. one kind adopts the motor output end structure of compound supporting, it comprises motor reel (7), left end cap (1), left gland (3), bearing (4), on the nearly output shaft end of described motor reel (7), be set with two structures identical, the bearing (4) that parameter is consistent, described bearing (4) is angular contact ball bearing, its outer ring and left end cap (1) endoporus interference fit, it is characterized in that: described two bearings (4) are sleeved on the nearly output shaft end of motor reel (7) so that outer ring hole taper large end face is opposing, between two bearings (4) outer ring, be provided with and adjust pad (2), the nearly output shaft end matched in clearance of described two bearings (4) inner ring endoporus and motor reel (7), at the left side of two bearings (4) suit clamp nut (6), spacer (5), two bearings (4) inner ring is fastened on the nearly output shaft end of motor reel (7) by described clamp nut (6), spacer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210411206.4A CN103780002A (en) | 2012-10-23 | 2012-10-23 | Double-supported motor output end structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210411206.4A CN103780002A (en) | 2012-10-23 | 2012-10-23 | Double-supported motor output end structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103780002A true CN103780002A (en) | 2014-05-07 |
Family
ID=50571950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210411206.4A Pending CN103780002A (en) | 2012-10-23 | 2012-10-23 | Double-supported motor output end structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103780002A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830065A (en) * | 2017-12-04 | 2018-03-23 | 洛阳理工学院 | Paired thrust ball bearing pre-tightening apparatus |
-
2012
- 2012-10-23 CN CN201210411206.4A patent/CN103780002A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830065A (en) * | 2017-12-04 | 2018-03-23 | 洛阳理工学院 | Paired thrust ball bearing pre-tightening apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140507 |