CN203522433U - Axial limiting device of motor rotor - Google Patents
Axial limiting device of motor rotor Download PDFInfo
- Publication number
- CN203522433U CN203522433U CN201320673692.7U CN201320673692U CN203522433U CN 203522433 U CN203522433 U CN 203522433U CN 201320673692 U CN201320673692 U CN 201320673692U CN 203522433 U CN203522433 U CN 203522433U
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- CN
- China
- Prior art keywords
- gear
- ball bearing
- bearing
- rotating shaft
- motor
- 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 relates to an axial limiting device of a motor rotor. The device comprises an end cover, a rotating shaft and a ball bearing installed in a bearing chamber of the end cover. The outer end of the ball bearing is provided with a limiting baffle plate which is fixed on the inner wall of the end cover. The inner end of the ball bearing is provided with a gear. The gear and the rotating shaft are coaxially installed, and the gear is matched with the outer diameter of the rotating shaft. The gear tooth upper end face of the gear is matched with the lower end of the end cover and is in contact with the lower end face of the ball bearing. Limiting devices are installed at two side end faces of the end cover respectively to form a whole body to limit the axial movement of the bearing, the noise caused by a motor axial movement is reduced, the axial stability of the motor can be raised, the service lives of the bearing and the motor are prolonged, and the security is improved.
Description
Technical field
The utility model relates to a kind of axially stop block of rotor, belongs to field of motor manufacturing.
Background technology
Rolling bearing is called for short bearing, is rotate and bear the standarized component of load on axle for supporting axis, by people, is called mechanical joint, and for example motor does not have bearing just can not work.Rolling bearing of a great variety, but its structure is substantially identical, generally outer ring, inner ring, rolling element and retainer, consists of, and inner ring is contained on axle, with axle, rotates; Outer ring is contained in body or bearing pedestal, generally maintains static.The fixed form of ball bearing and end cap has a variety of, for preventing that the mating surface relative sliding of inner ring and axle journal from producing wearing and tearing, affect the service behaviour of bearing, thereby require between mating surface, to there is certain interference, but in the larger occasion of variations in temperature, because bearing inner race, outer ring are all thin-walled parts, if the too large easily distortion of interference, so would be not suitable for adopting interference fit; And adopt gap or interference fits to tend to cause the axial restraint of bearing bad, cause bearing early failure.
Summary of the invention
The purpose of this utility model is to provide a kind of axially stop block of rotor, by adopting stopping means in bearing internal external side, not only limited the axial motion of motor bearings, and guaranteed that motor, in high temperature and high reliability of shaking in situation, has improved fail safe.
For achieving the above object, the utility model provides a kind of axially stop block of rotor, comprise end cap, rotating shaft and be arranged on the ball bearing in the bearing chamber of end cap, outer end at described ball bearing is provided with postive stop baffle, described postive stop baffle is fixed on the inwall of end cap, in ball bearing the inner, be provided with a gear, described gear and described rotating shaft are coaxially installed, and external diameter is suitable with it, gear teeth upper surface and the end cap lower end of gear are suitable, and contact with the lower surface of ball bearing, described rotating shaft is respectively through postive stop baffle and gear, and be connected with ball bearing.At end cap both sides end face difference mounting limit device, form the axial motion that one limits bearing, reduce the noise that axial movement of motor causes, can also improve the axial stability of motor, extend the useful life of bearing and motor, improve fail safe.
Further improvement of the utility model is: in described postive stop baffle upper surface, be provided with a bowl-type axle sleeve, described rotating shaft is connected with ball bearing through described bowl-type axle sleeve.Prevent from causing inefficacy in bearing grease inflow rotor commutator.
The beneficial effects of the utility model are: simple in structure, cheap, installation and removal convenience, and practical.
Accompanying drawing explanation
Fig. 1 represents installation diagram of the present utility model;
Drawing reference numeral: 1-end cap, 2-ball bearing, 3-rotating shaft, 4-bowl-type axle sleeve, 5-postive stop baffle, 6-gear.
Embodiment
In order to deepen, to understanding of the present utility model, below in conjunction with drawings and Examples, the utility model to be described in further detail, this embodiment, only for explaining the utility model, does not form and limits this practical protection range.
Referring to accompanying drawing 1, the utility model proposes a kind of axially stop block of rotor, comprise end cap 1, rotating shaft 3 and be arranged on the ball bearing 2 in the bearing chamber of end cap 1, in the outer end of described ball bearing 2, be provided with postive stop baffle 5, described postive stop baffle 5 is fixed on the inwall of end cap, in ball bearing 2 the inners, be provided with a gear 6, described gear 6 is coaxially installed with described rotating shaft 3, and external diameter is suitable with it, gear teeth upper surface and end cap 1 lower end of gear 6 are suitable, and contact with the lower surface of ball bearing 2, described rotating shaft 3 is respectively through postive stop baffle 5 and gear 6, and be connected with ball bearing 2.In described postive stop baffle 5 upper surfaces, be provided with a bowl-type axle sleeve 4, described rotating shaft 3 is connected with ball bearing 2 through described bowl-type axle sleeve 4.Prevent from causing inefficacy in bearing grease inflow rotor commutator.Described postive stop baffle 5 is loop configuration, and is provided with the annular protrusion that acts on ball bearing outer ring, and adopts laser welding to fix with the contact position of end cap 1.The displacement of bearing can be limited on the one hand, radiating effect and the speed of bearing can be improved on the other hand.
At end cap both sides end face difference mounting limit device, form the axial motion that one limits bearing, reduce the noise that axial movement of motor causes, can also improve the axial stability of motor, extend the useful life of bearing and motor, improve fail safe.
The foregoing is only better embodiment of the present utility model; protection range of the present utility model is not limited with above-mentioned execution mode; in every case the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or is changed, and all should include in the protection range of recording in claims.
Claims (2)
1. the axially stop block of a rotor, comprise end cap (1), rotating shaft (3) and be arranged on the ball bearing (2) in the bearing chamber of end cap (1), in the outer end of described ball bearing (2), be provided with postive stop baffle (5), described postive stop baffle (5) is fixed on the inwall of end cap, it is characterized in that: in ball bearing (2) the inner, be provided with a gear (6), described gear (6) is coaxially installed with described rotating shaft (3), and external diameter is suitable with it, the gear teeth upper surface of gear (6) and end cap (1) lower end are suitable, and contact with the lower surface of ball bearing (2), described rotating shaft (3) is respectively through postive stop baffle (5) and gear (6), and be connected with ball bearing (2).
2. the axially stop block of a kind of rotor according to claim 1, it is characterized in that: in described postive stop baffle (5) upper surface, be provided with a bowl-type axle sleeve (4), described rotating shaft (3) is connected with ball bearing (2) through described bowl-type axle sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673692.7U CN203522433U (en) | 2013-10-30 | 2013-10-30 | Axial limiting device of motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673692.7U CN203522433U (en) | 2013-10-30 | 2013-10-30 | Axial limiting device of motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203522433U true CN203522433U (en) | 2014-04-02 |
Family
ID=50381307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320673692.7U Expired - Fee Related CN203522433U (en) | 2013-10-30 | 2013-10-30 | Axial limiting device of motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203522433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529592A (en) * | 2019-09-10 | 2019-12-03 | 芜湖伯特利汽车安全系统股份有限公司 | Executing agency applied to electronic parking system |
-
2013
- 2013-10-30 CN CN201320673692.7U patent/CN203522433U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529592A (en) * | 2019-09-10 | 2019-12-03 | 芜湖伯特利汽车安全系统股份有限公司 | Executing agency applied to electronic parking system |
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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 |
Granted publication date: 20140402 Termination date: 20201030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |