CN204458785U - A kind of rotating shaft export structure of motor - Google Patents
A kind of rotating shaft export structure of motor Download PDFInfo
- Publication number
- CN204458785U CN204458785U CN201520089968.6U CN201520089968U CN204458785U CN 204458785 U CN204458785 U CN 204458785U CN 201520089968 U CN201520089968 U CN 201520089968U CN 204458785 U CN204458785 U CN 204458785U
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- rotating shaft
- column
- output shaft
- motor
- expansion sleeve
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Abstract
The utility model relates to a kind of rotating shaft export structure of motor, comprise expansion sleeve (1), rotating shaft output shaft (2) and motor body (3), rotating shaft output shaft (2) one end is connected with motor body (3), expansion sleeve (1) is enclosed within rotating shaft output shaft (2), it is characterized in that: described rotating shaft output shaft (2) is divided into column rounded face (21) and column plane (22) composition vertically; Wherein, column rounded face (21) is connected with motor body (3); Column plane (22) is two, and two column planes (22) are with the distribution of rotating shaft output shaft (2) diameter symmetry, and by two cambered surface transition between two column planes (22), expansion sleeve (1) is coated in column plane (22); Column rounded face (21) plays and the effect of external parts coaxial positioning, and column plane (22) plays outside transmitting torque effect.
Description
Technical field
The utility model relates to a kind of machine field, especially relates to a kind of rotating shaft export structure of motor.
Background technique
Current electromobile motor rotary shaft exports the interference fit of Spielpassung and the optical axis output mostly being rectangular spline, and the small―gap suture of its rectangular spline coordinates, and course of working is complicated, and requirement on machining accuracy is higher, not easily processes; Optical axis interference fit needs the enclasping force that expansion sleeve is very large, and is not suitable for the power transmitting larger torque.In order to solve i.e. processing, easy to loading and unloading while but also the problem of power of larger torque can be transmitted, invented above-mentioned motor output shaft structure.
Model utility content
The utility model devises a kind of rotating shaft export structure of motor, and its technical problem solved is that the enclasping force existed with rotating shaft interference fit expansion sleeve in the rotating shaft export structure of existing motor is excessive, but is not suitable for the power transmitting larger torque.
In order to solve the technical problem of above-mentioned existence, the utility model have employed following scheme:
A kind of rotating shaft export structure of motor, comprise expansion sleeve (1), rotating shaft output shaft (2) and motor body (3), rotating shaft output shaft (2) one end is connected with motor body (3), expansion sleeve (1) is enclosed within rotating shaft output shaft (2), it is characterized in that: described rotating shaft output shaft (2) is divided into column rounded face (21) and column plane (22) composition vertically; Wherein, column rounded face (21) is connected with motor body (3); Column plane (22) is two, and two column planes (22) are with the distribution of rotating shaft output shaft (2) diameter symmetry, and by two cambered surface transition between two column planes (22), expansion sleeve (1) is coated in column plane (22); Column rounded face (21) plays and the effect of external parts coaxial positioning, and column plane (22) plays outside transmitting torque effect.
Further, described expansion sleeve (1) is made up of skin cover (11) and internal layer cover (12), and internal layer cover (12) is clamped between outer cover (11) and rotating shaft output shaft (2), and internal layer cover (12) covers in column plane (22).
Further, described internal layer cover (12) inner side is provided with two planes symmetrically and coordinates with two column planes (22), inside it in addition two symmetrically cambered surface coordinate with two cambered surfaces of rotating shaft output shaft (2).
Further, described internal layer cover (12) axial length is greater than the axial length of column plane (22).
The rotating shaft export structure of this motor, compared with the rotating shaft of traditional motor, has following beneficial effect:
The utility model is provided with two planes in the bilateral symmetry of rotating shaft output shaft, uses the outside Driving Torque of form of expansion sleeve interference fit, to guarantee both have enough large enclasping force, transmits again the power of larger torque simultaneously.
Accompanying drawing explanation
Fig. 1: the rotating shaft export structure schematic diagram I of the utility model motor;
Fig. 2: the rotating shaft export structure schematic diagram II of the utility model motor;
Fig. 3: expansion sleeve structural representation in the rotating shaft export structure of the utility model motor;
Fig. 4: the utility model shaft output shaft structural representation I;
In Fig. 5: Fig. 4, A-A is to sectional view;
Fig. 6: the utility model shaft output shaft structural representation II.
Description of reference numerals:
1-expansion sleeve; 11-outer cover; 12-internal layer cover; 2-rotating shaft output shaft; 21-column rounded face; 22-column plane; 3-motor body.
Embodiment
Below in conjunction with Fig. 1 to Fig. 6, the utility model is described further:
As shown in Figure 1, a kind of rotating shaft export structure of motor, it is located at the rotating shaft external part 2 of motor, and comprise expansion sleeve 1 and rotating shaft output shaft 2 two-part, rotating shaft output shaft 2 is connected on motor body 3, and expansion sleeve 1 is connected on rotating shaft output shaft 2.
As shown in Fig. 2, rotating shaft output shaft 2 is connected to one end of motor body 3, and it is partly column rounded face 21 that motor output shaft 2 extends out from motor body, and the motor output shaft 2 of column rounded face 21 outer end is arranged with two column planes 22.Column rounded face 21 plays and the effect of external parts coaxial positioning, and column plane 22 plays outside transmitting torque effect.
As shown in Figure 3, expansion sleeve 1 overlaps 12 by internal layer and forms with outer cover 11, and two the column planes 22 corresponding with rotating shaft output shaft 2 at the internal surface of internal layer cover 12 connect.With bolt, the inside and outside layer cover of expansion sleeve 2 is fixed together, under the pulling force of bolt, internal layer cover 12 produces and shrinks, and is close together with rotating shaft output shaft 2.Make the outside Driving Torque of form of expansion sleeve 1 and rotating shaft output shaft 2 interference fit.
Specifically, the cambered surface of expansion sleeve 2 coordinates with the cambered surface of rotating shaft output shaft 2, and radial nominal diameter is identical, can obtain a large interference fit after expansion sleeve 2 swelling.The plane of expansion sleeve 2 coordinates with column plane 22, and its axial length is equal, and radial width nominal size is identical, can obtain a slight interference and coordinate after expansion sleeve 2 swelling.
As shown in Figure 4, rotating shaft output shaft 2 is axially made up of two-part: column rounded face 21 and column plane 22.Column rounded face 21 plays and the effect of external parts coaxial positioning, and column plane 22 plays outside transmitting torque effect.
As illustrated in Figures 5 and 6, two column planes 22 are symmetrical arranged, by cambered surface transition between two column planes 22.Two symmetrical column planes 22 be from two spacing that mill out of motor output shaft 2 end surface symmetric be 48mm, two planes that length is identical.It is 48mm that the full circle of the cambered surface of transition to be a diameter be originally Ф 60mm mills two spacing, the plane gained that length is identical.
By reference to the accompanying drawings exemplary description is carried out to the utility model above; obvious realization of the present utility model is not subject to the restrictions described above; as long as have employed the various improvement that method of the present utility model is conceived and technological scheme is carried out; or design of the present utility model and technological scheme directly applied to other occasion, all in protection domain of the present utility model without to improve.
Claims (4)
1. the rotating shaft export structure of a motor, comprise expansion sleeve (1), rotating shaft output shaft (2) and motor body (3), rotating shaft output shaft (2) one end is connected with motor body (3), expansion sleeve (1) is enclosed within rotating shaft output shaft (2), it is characterized in that: described rotating shaft output shaft (2) is divided into column rounded face (21) and column plane (22) composition vertically; Wherein, column rounded face (21) is connected with motor body (3); Column plane (22) is two, and two column planes (22) are with the distribution of rotating shaft output shaft (2) diameter symmetry, and by two cambered surface transition between two column planes (22), expansion sleeve (1) is coated in column plane (22); Column rounded face (21) plays and the effect of external parts coaxial positioning, and column plane (22) plays outside transmitting torque effect.
2. the rotating shaft export structure of motor according to claim 1, it is characterized in that: described expansion sleeve (1) is made up of skin cover (11) and internal layer cover (12), internal layer cover (12) is clamped between outer cover (11) and rotating shaft output shaft (2), and internal layer cover (12) covers in column plane (22).
3. the rotating shaft export structure of motor according to claim 2, it is characterized in that: described internal layer cover (12) inner side is provided with two planes symmetrically and coordinates with two column planes (22), inside it in addition two symmetrically cambered surface coordinate with two cambered surfaces of rotating shaft output shaft (2).
4. the rotating shaft export structure of motor according to claim 3, is characterized in that: described internal layer cover (12) axial length is greater than the axial length of column plane (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520089968.6U CN204458785U (en) | 2015-02-09 | 2015-02-09 | A kind of rotating shaft export structure of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520089968.6U CN204458785U (en) | 2015-02-09 | 2015-02-09 | A kind of rotating shaft export structure of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204458785U true CN204458785U (en) | 2015-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520089968.6U Active CN204458785U (en) | 2015-02-09 | 2015-02-09 | A kind of rotating shaft export structure of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204458785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381028A (en) * | 2017-08-15 | 2017-11-24 | 广东紫晶信息存储技术股份有限公司 | A kind of standard optical disc clamping-type upending device and its method |
-
2015
- 2015-02-09 CN CN201520089968.6U patent/CN204458785U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381028A (en) * | 2017-08-15 | 2017-11-24 | 广东紫晶信息存储技术股份有限公司 | A kind of standard optical disc clamping-type upending device and its method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |