CN204243971U - A kind of electric machine structure, servomotor and stepping motor - Google Patents
A kind of electric machine structure, servomotor and stepping motor Download PDFInfo
- Publication number
- CN204243971U CN204243971U CN201420513291.XU CN201420513291U CN204243971U CN 204243971 U CN204243971 U CN 204243971U CN 201420513291 U CN201420513291 U CN 201420513291U CN 204243971 U CN204243971 U CN 204243971U
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- China
- Prior art keywords
- circlip
- electric machine
- machine structure
- motor shaft
- motor
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Abstract
The utility model provides a kind of electric machine structure, servomotor and stepping motor.Electric machine structure comprises motor shaft and is assembled in protecgulum, fore bearing, rotor, rear bearing and the bonnet on motor shaft, and wherein, the first position adjacent with motor shaft between protecgulum and fore bearing has installed the first elastic washer; Second position between the surface vertical with axis of motor shaft and fore bearing rear end face has installed the second circlip; The 3rd circlip has been installed in the 3rd position between the surface vertical with axis of motor shaft and the rear end face of rotor; The 4th circlip has been installed in four position adjacent with motor shaft between bonnet and rear bearing.The utility model by elastic washer and circlip complement each other to form to the fixing of each assembly in electric machine structure and regulating action, effectively prevent or alleviate moving axially of motor, reducing motor oscillating, improve motor reliability.
Description
Technical field
The utility model relates to machine field, and more particularly, the utility model relates to a kind of electric machine structure.
Background technology
The non-fixed electrical machinery axle of existing motor and the parts be arranged on axle, specifically, such as, front and back bearings, rotor, connection between shaft position and motor shaft are not completely fixed.In this case, for some application scenario, the problem that motor easily moves axially, makes motor produce mechanical oscillation or parts covibration, thus can cause the reduction of motor safety.
Utility model content
Technical problem to be solved in the utility model is for there is above-mentioned defect in prior art, provides one effectively can prevent from or alleviate motor moving axially, and reduces motor oscillating, improves the electric machine structure of motor reliability.
In order to realize above-mentioned technical purpose, according to the utility model, providing a kind of electric machine structure, comprising motor shaft and being assembled in protecgulum, fore bearing, rotor, rear bearing and the bonnet on motor shaft; Wherein, the first position adjacent with motor shaft between protecgulum and fore bearing has installed the first elastic washer; Second position between the surface vertical with axis of motor shaft and fore bearing rear end face has installed the second circlip; The 3rd circlip has been installed in the 3rd position between the surface vertical with axis of arbor and the rear end face of rotor; The 4th circlip has been installed in four position adjacent with motor shaft between bonnet and rear bearing.
Preferably, the external diameter of the first elastic washer is less than protecgulum counter bore hole diameters.
Preferably, the second circlip external diameter is greater than fore bearing internal diameter.
Preferably, the 3rd circlip external diameter is greater than rotor internal diameter.
Preferably, the 4th circlip external diameter is greater than bonnet counter bore hole diameters; Described bonnet is provided with the groove of placement the 4th circlip.
The utility model additionally provides a kind of servomotor, adopts above-mentioned electric machine structure.
The utility model additionally provides a kind of stepping motor, adopts above-mentioned electric machine structure.
According in electric machine structure of the present utility model, by formed after the cooperatively interacting of the first elastic washer, the second circlip, the 3rd circlip and the 4th circlip to the fixing of each assembly in electric machine structure and regulating action, effectively prevent or alleviate moving axially of motor, reduce motor oscillating, improve motor reliability.
Accompanying drawing explanation
By reference to the accompanying drawings, and by reference to detailed description below, will more easily there is more complete understanding to the utility model and more easily understand its adjoint advantage and feature, wherein:
Fig. 1 schematically shows the cutaway view of the electric machine structure according to the utility model embodiment.
It should be noted that, accompanying drawing is for illustration of the utility model, and unrestricted the utility model.Note, represent that the accompanying drawing of structure may not be draw in proportion.Further, in accompanying drawing, identical or similar element indicates identical or similar label.
Embodiment
In order to make content of the present utility model clearly with understandable, below in conjunction with specific embodiments and the drawings, content of the present utility model is described in detail.
Fig. 1 schematically shows the cutaway view of the electric machine structure according to the utility model embodiment.
Specifically, as shown in Figure 1, comprise according to the electric machine structure of the utility model embodiment: motor shaft 10, protecgulum 20, fore bearing 30, rotor 40, bonnet 50 and rear bearing 60; Wherein, on the length direction (that is, axial direction) of motor shaft 10, protecgulum 20, fore bearing 30, rotor 40, bonnet 50 and rear bearing 60 engage with motor shaft 10 successively.
And wherein, the primary importance adjacent with motor shaft 10 between protecgulum 20 and fore bearing 30 is (as shown in locative first elliptical coil 100, this elliptical coil is tag line, instead of represents the structure lines of electric machine structure) place installed the first elastic washer.Thus, motor length (such as, the distance between front and rear covers) can be adjusted by the first elastic washer, and the relative position of fixed electrical machinery axle.
Preferably, the external diameter of the first elastic washer is less than protecgulum counter bore hole diameters.
And wherein, the second place between fore bearing 30 and the surface vertical with axis of motor shaft 10 is (as shown in locative second elliptical coil 200, this elliptical coil is tag line, instead of represents the structure lines of electric machine structure) place installed the second circlip.Thus, the relative position between fore bearing and motor shaft can be fixed.
Preferably, the second elastic scheibe external diameter is greater than fore bearing internal diameter.
And wherein, the rear end face of rotor 40 (namely, near the side of rear bearing 60) and motor shaft 10 with the 3rd position between axially vertical surface (as shown in locative 3rd elliptical coil 300, this elliptical coil is tag line, instead of represent the structure lines of electric machine structure) place installed the 3rd circlip, the 3rd circlip 300 can be fixed in the groove of motor shaft 10 outer peripheral face.In the present embodiment, as shown in Figure 1, rotor 40 front end is engaged fixing with a lug boss 11 on front side of motor shaft 10, the movement of restrict rotor 40 forward direction, and rotor 40 rear end is by the bed knife of the 3rd circlip 300, limit the movement that it is backward, thus, can relative position between fixed rotor and motor shaft, prevent the revolution of rotor from vibrating.Being understandable that, if motor shaft 10 does not have lug boss 11, also by arranging another circlip in the groove of motor shaft 10 outer peripheral face, the forward movement of restrict rotor 40 can being carried out.
Preferably, the 3rd circlip external diameter is greater than rotor internal diameter.
And wherein, four position adjacent with motor shaft 10 between bonnet 50 and rear bearing 60 is (as shown in locative 4th elliptical coil 400, this elliptical coil is tag line, instead of represents the structure lines of electric machine structure) place installed the 4th circlip.Thus, the relative position of fixing rear bearing 60 and motor shaft 10.
Preferably, the 4th circlip external diameter is greater than bonnet counter bore hole diameters, and bonnet 50 is provided with the groove of placement the 4th circlip 400.
In a specific embodiment, servomotor and stepping motor can be applied to by according to the electric machine structure of the utility model embodiment.
According in the electric machine structure of the utility model embodiment, by formed after the cooperatively interacting of the first elastic washer, the second circlip, the 3rd circlip and the 4th circlip to the fixing of each assembly in electric machine structure and regulating action, effectively prevent or alleviate moving axially of motor, reduce motor oscillating, improve motor reliability.
In addition, it should be noted that, unless stated otherwise or point out, otherwise the term " first " in specification, " second ", " the 3rd " etc. describe only for distinguishing each assembly, element, step etc. in specification, instead of for representing logical relation between each assembly, element, step or ordinal relation etc.
Be understandable that, although the utility model with preferred embodiment disclose as above, but above-described embodiment and be not used to limit the utility model.For any those of ordinary skill in the art, do not departing under technical solutions of the utility model ambit, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solutions of the utility model, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solutions of the utility model protection.
Claims (7)
1. an electric machine structure, comprises motor shaft and is assembled in protecgulum, fore bearing, rotor, rear bearing and the bonnet on motor shaft, it is characterized in that, the first position adjacent with motor shaft between protecgulum and fore bearing has installed the first elastic washer; Second position between the surface vertical with axis of motor shaft and fore bearing rear end face has installed the second circlip; The 3rd circlip has been installed in the 3rd position between the surface vertical with axis of motor shaft and the rear end face of rotor; The 4th circlip has been installed in four position adjacent with motor shaft between bonnet and rear bearing.
2. electric machine structure according to claim 1, is characterized in that, the external diameter of the first elastic washer is less than protecgulum counter bore hole diameters.
3. electric machine structure according to claim 1, is characterized in that, the second circlip external diameter is greater than fore bearing internal diameter.
4. electric machine structure according to claim 1, is characterized in that, the 3rd circlip external diameter is greater than rotor internal diameter.
5. electric machine structure according to claim 1, is characterized in that, the 4th circlip external diameter is greater than bonnet counter bore hole diameters; Described bonnet is provided with the groove of placement the 4th circlip.
6. a servomotor, is characterized in that, adopts electric machine structure as described in any one of Claims 1 to 5.
7. a stepping motor, is characterized in that, adopts electric machine structure as described in any one of Claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420513291.XU CN204243971U (en) | 2014-09-05 | 2014-09-05 | A kind of electric machine structure, servomotor and stepping motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420513291.XU CN204243971U (en) | 2014-09-05 | 2014-09-05 | A kind of electric machine structure, servomotor and stepping motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204243971U true CN204243971U (en) | 2015-04-01 |
Family
ID=52773414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420513291.XU Expired - Fee Related CN204243971U (en) | 2014-09-05 | 2014-09-05 | A kind of electric machine structure, servomotor and stepping motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204243971U (en) |
-
2014
- 2014-09-05 CN CN201420513291.XU patent/CN204243971U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201206 Pudong New Area Jinqiao Ning Road, Shanghai, No. 888 Patentee after: SHANGHAI HIGHLY ELECTRICAL APPLIANCES Co.,Ltd. Address before: 201206 Pudong New Area Jinqiao Ning Road, Shanghai, No. 888 Patentee before: SHANGHAI HITACHI ELECTRICAL APPLICANCES Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |