CN203445722U - Asynchronous motor front and rear end cover structure - Google Patents
Asynchronous motor front and rear end cover structure Download PDFInfo
- Publication number
- CN203445722U CN203445722U CN201320471480.0U CN201320471480U CN203445722U CN 203445722 U CN203445722 U CN 203445722U CN 201320471480 U CN201320471480 U CN 201320471480U CN 203445722 U CN203445722 U CN 203445722U
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- rear end
- bearing
- end cover
- housing
- cover
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Abstract
The utility model relates to the technical field of motors, and discloses an asynchronous motor front and rear end cover structure. The asynchronous motor front and back end cover structure comprises a front end cover and a rear end cover. The size of the front end cover is the same as the front-end size of a motor housing. The edge of the front end cover is provided with a plurality of installation screw holes. The size of the rear end cover is the same as the rear-end size of the motor housing. The edge of the rear end cover is provided with a plurality of installation screw holes. The inner surface of the front end cover is provided with a plurality of front end cover bearing chambers. Each front end cover bearing chamber is provided with a bearing sleeve. The inner surface of the rear end cover is provided with a rear end cover bearing chamber. The rear end cover bearing chamber is provided with a bearing sleeve. The rear end cover bearing chamber is arranged at the central position of the rear end cover. According to the utility model, the front and rear end covers are provided with the bearing sleeves, so the bearing installation accuracy can be improved; through the through holes formed in the front and rear end covers, the weight of the end covers can be reduced, and the consumption of raw materials can be reduced.
Description
Technical field
The utility model relates to motor technology field, relates in particular to a kind of front and rear cover structure of asynchronous machine.
Background technology
Asynchronous motor claims again induction motor, is to be interacted and produced electromagnetic torque by air-gap rotating magnetic field and rotor winding induced current, thereby realizes a kind of alternating current machine that energy converting between mechanical is mechanical energy.Asynchronous motor is divided into two kinds of forms according to rotor structure: have squirrel-cage and wire wound asynchronous motor.Make the asynchronous machine of motor operation.Because its rotor winding current is that induction produces, claim again induction motor.Asynchronous motor be most widely used in all kinds of motor, that requirement is maximum is a kind of.Take in the machinery that electricity is power of various countries, approximately having 90% left and right is asynchronous motor, its small and middle induction motors accounts for more than 70%.In the total load of electric power system, the power consumption of asynchronous motor accounts for sizable proportion.In China, the power consumption of asynchronous motor accounts for more than 60% of total load.Stator and rotor are installed in the casing of asynchronous machine, at the two ends of casing, front end housing and rear end cap are installed respectively.Existing front and rear cover is disk-like structure, is provided with bearing chamber on front and rear cover, and bearing chamber is used for installing bearing, so as rotor by transmission of power to rotating shaft.
Utility model content
The purpose of this utility model is in order to address the above problem, and a kind of front and rear cover structure of asynchronous machine is provided, and by the structural design of end plate before and after changing, the positioning precision of bearing is improved.
The technical scheme that the utility model is taked is:
A kind of front and rear cover structure of asynchronous machine, comprise front end housing and rear end cap, the front end of described front end housing and motor housing is measure-alike, at the edge of described front end housing, be provided with a plurality of installation screws, the rear end of described rear end cap and motor housing is measure-alike, at the edge of described rear end cap, is provided with a plurality of installation screws, it is characterized in that, described front end housing inner surface is provided with a plurality of front end housing bearing chambers, on each front end housing bearing chamber, is equipped with bearing holder (housing, cover); Described rear end cap inner surface is provided with a bearing of rear end cover chamber, and described bearing of rear end cover chamber is provided with bearing holder (housing, cover), and described bearing of rear end cover chamber is arranged on the center of described rear end cap.
Further, the height of described front end housing bearing holder (housing, cover) is greater than the width of the bearing being mounted thereon, and the height of described bearing of rear end cover cover is greater than the width of the bearing being mounted thereon.
Further, described front end housing is comprised of a plurality of horizontal bars and a plurality of perpendicular muscle, and described bearing chamber is arranged on described horizontal bar and perpendicular muscle, between described horizontal bar and perpendicular muscle, forms a plurality of through holes.
Further, the bearing of rear end cover chamber in the middle of described rear end cap is many spokes of ambient radiation of end cap backward, between adjacent two spokes, form fan-shaped pylone.
Further, described front end housing and rear end cap are all integrated.
The beneficial effects of the utility model are:
Bearing holder (housing, cover) is set on front and rear cover, bearing installation accuracy is improved;
The through hole arranging on front and rear cover, has alleviated the weight of end cap, has saved raw material;
End cap adopts one-shot forming technique, and efficiency is high.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of front end housing in the utility model;
Accompanying drawing 2 is structural representations of rear end cap in the utility model.
Label in accompanying drawing is:
11. front end housings; 12. installation screws;
13. front end housing bearing chambers; 14. bearing holder (housing, cover)s;
15. horizontal bars; 16. perpendicular muscle;
17. through holes; 21. rear end caps;
22. installation screws; 23. bearing of rear end cover chambers;
24. bearing holder (housing, cover)s; 25. spokes;
26. fan-shaped pylones.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the front and rear cover structure of the utility model asynchronous machine is elaborated.
Referring to accompanying drawing 1, in the front end housing structure of asynchronous machine, front end housing 11 is measure-alike with the front end of motor housing, at the edge of front end housing 11, be provided with a plurality of installation screws 12, front end housing 11 inner surfaces are provided with a plurality of front end housing bearing chambers 13, in figure, be 3, on each front end housing bearing chamber 13, be equipped with bearing holder (housing, cover) 14.The height of the bearing holder (housing, cover) 14 of front end housing is greater than the width of the bearing being mounted thereon.Front end housing 11 is comprised of a plurality of horizontal bars 15 and a plurality of perpendicular muscle 16, and bearing chamber 13 is arranged on horizontal bar 15 and perpendicular muscle 16, forms a plurality of through holes 17 between horizontal bar 15 and perpendicular muscle 16.Front end housing 11 is by die-casting process one-shot forming.
Referring to accompanying drawing 2, in the rear end cover structure of asynchronous machine, rear end cap 21 is measure-alike with the rear end of motor housing, at the edge of rear end cap 21, be provided with a plurality of installation screws 22, rear end cap 21 inner surfaces are provided with a bearing of rear end cover chamber 23, bearing of rear end cover chamber 23 is arranged on the center of rear end cap 21, and bearing of rear end cover chamber 23 is provided with bearing holder (housing, cover) 24, and the height of bearing of rear end cover cover 24 is greater than the width of the bearing being mounted thereon.Bearing of rear end cover chamber 23 in the middle of rear end cap 21 is many spokes of ambient radiation 25 of end cap 21 backward, between adjacent two spokes 25, form fan-shaped pylone 26.Rear end cap 21 is by die-casting process one-shot forming.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1. the front and rear cover structure of an asynchronous machine, comprise front end housing and rear end cap, the front end of described front end housing and motor housing is measure-alike, at the edge of described front end housing, be provided with a plurality of installation screws, the rear end of described rear end cap and motor housing is measure-alike, at the edge of described rear end cap, be provided with a plurality of installation screws, it is characterized in that: described front end housing inner surface is provided with a plurality of front end housing bearing chambers, on each front end housing bearing chamber, be equipped with bearing holder (housing, cover); Described rear end cap inner surface is provided with a bearing of rear end cover chamber, and described bearing of rear end cover chamber is provided with bearing holder (housing, cover), and described bearing of rear end cover chamber is arranged on the center of described rear end cap.
2. the front and rear cover structure of asynchronous machine according to claim 1, is characterized in that: the height of described front end housing bearing holder (housing, cover) is greater than the width of the bearing being mounted thereon, and the height of described bearing of rear end cover cover is greater than the width of the bearing being mounted thereon.
3. the front and rear cover structure of asynchronous machine according to claim 1, is characterized in that: described front end housing is comprised of a plurality of horizontal bars and a plurality of perpendicular muscle, and described bearing chamber is arranged on described horizontal bar and perpendicular muscle, between described horizontal bar and perpendicular muscle, forms a plurality of through holes.
4. the front and rear cover structure of asynchronous machine according to claim 1, is characterized in that: the bearing of rear end cover chamber in the middle of described rear end cap is many spokes of ambient radiation of end cap backward, between adjacent two spokes, form fan-shaped pylone.
5. according to the front and rear cover structure of the asynchronous machine described in any one in claim 1 to 4, it is characterized in that: described front end housing and rear end cap are all integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320471480.0U CN203445722U (en) | 2013-08-05 | 2013-08-05 | Asynchronous motor front and rear end cover structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320471480.0U CN203445722U (en) | 2013-08-05 | 2013-08-05 | Asynchronous motor front and rear end cover structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203445722U true CN203445722U (en) | 2014-02-19 |
Family
ID=50096738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320471480.0U Expired - Fee Related CN203445722U (en) | 2013-08-05 | 2013-08-05 | Asynchronous motor front and rear end cover structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203445722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374282A (en) * | 2014-11-11 | 2015-02-25 | 中国第一汽车股份有限公司 | Inspection method for air gap between stator and rotor of permanent magnet motor |
-
2013
- 2013-08-05 CN CN201320471480.0U patent/CN203445722U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374282A (en) * | 2014-11-11 | 2015-02-25 | 中国第一汽车股份有限公司 | Inspection method for air gap between stator and rotor of permanent magnet motor |
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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: 20140219 Termination date: 20190805 |