CN204615525U - A kind of motor - Google Patents
A kind of motor Download PDFInfo
- Publication number
- CN204615525U CN204615525U CN201520215715.9U CN201520215715U CN204615525U CN 204615525 U CN204615525 U CN 204615525U CN 201520215715 U CN201520215715 U CN 201520215715U CN 204615525 U CN204615525 U CN 204615525U
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- rotor
- rotating shaft
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- rotor core
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Abstract
The utility model discloses a kind of motor, comprise rotating shaft, rotor assembly, stator module and casing assembly, rotor assembly is arranged in rotating shaft, stator module and casing assembly are installed together and are nested in outside rotor assembly, rotating shaft two ends are bearing on the bearing of casing assembly respectively, described rotor assembly comprises the rotor core be overrided to form by some stamping forming rotor punchings, the shaft hole diameter size being positioned at the rotor punching of rotor core mid portion is D4, the shaft hole diameter size being positioned at the rotor punching of rotor core two end portions is D5, D5 is greater than D4, by the axis hole of the rotor punching being positioned at rotor core end is suitably increased, make in the process of installing rotating shaft, rotor punching can not produce distortion, exempt and fraising required in rotating shaft process was installed in the past, improve production efficiency and conforming product rate.
Description
Technical field:
The utility model relates to a kind of motor, belongs to technical field of motors.
Background technology:
In existing motor scheme, stator core and rotor core are all generally adopt stamping forming punching to be overrided to form, and stator core is nested in outside rotor core.Axis hole is offered in the middle of rotor core, the rotating shaft of motor is nested to be arranged on inside axis hole, and the size of axis hole is equal everywhere, in die casting locked mode process, easily make several rotor punchings being positioned at rotor core end produce distortion at axis hole place, affect the installation of rotating shaft, there are substandard products, and reduce production efficiency.
Gap between the stator core simultaneously produced and rotor core cannot meet the requirement of design, the follow-up cylindrical to rotor core is needed to carry out finish turning processing, with the air gap requirements making the gap between stator core and rotor core meet design, but carry out finish turning processing to the cylindrical of rotor core comparatively to bother, production efficiency is low, and the location base of stator core and rotor core and form and position tolerance are difficult to be guaranteed, causing the motor performance finally produced poor, there is abnormal sound in running.
Summary of the invention:
The purpose of this utility model is to provide a kind of motor, by the axis hole of the rotor punching being positioned at rotor core end is suitably increased, make in the process of installing rotating shaft, rotor punching can not produce distortion, exempt and fraising required in rotating shaft process was installed in the past, improve production efficiency and conforming product rate.
The purpose of this utility model is achieved by following technical proposals.
A kind of motor, comprise rotating shaft, rotor assembly, stator module and casing assembly, rotor assembly is arranged in rotating shaft, stator module and casing assembly are installed together and are nested in outside rotor assembly, rotating shaft two ends are bearing on the bearing of casing assembly respectively, described rotor assembly comprises the rotor core be overrided to form by some stamping forming rotor punchings, the shaft hole diameter size being positioned at the rotor punching of rotor core mid portion is D4, the shaft hole diameter size being positioned at the rotor punching of rotor core two end portions is that D5, D5 are greater than D4.
D4 × 1.1 described above≤D5≤D4 × 1.5.
The described above shaft hole diameter size of 2 to 6 rotor punchings that respectively has at rotor core two ends is set to D5.
Stator module described above comprises the stator core be overrided to form by some stamping forming stator punchings and the coil windings be winding and installed on stator core, the internal diameter of stator core is D1, the external diameter of rotor core is D2, air gap D3 is formed, D3=(D1-D2)/2 between stator core and rotor core.
It is D7 that rotating shaft two ends described above are used for bearings mounted spindle outer diameter, is that D6, D6 equal D7 between rotating shaft two bearings for installing the spindle outer diameter of rotor core.
D4≤D6 described above≤D4+0.006.
Casing assembly described above comprises casing and is arranged on front end housing and the rear end cap at casing two ends respectively, and rotating shaft two ends are bearing on the bearing of front end housing and rear end cap respectively.
The utility model compared with prior art, has following effect:
1) by the axis hole of the rotor punching being positioned at rotor core end is suitably increased, make in the process of installing rotating shaft, rotor punching can not produce distortion, exempts and installs fraising required in rotating shaft process in the past, improve production efficiency and conforming product rate;
2) the direct punching press from mould of the air gap between stator core and rotor core completes, meet design requirement, save follow-up cylindrical turning process, improve production efficiency, and due to stator core, rotor core punch process simultaneously, positioning datum is consistent, and ensure that the consistency of morpheme work difference and product, improves production efficiency and conforming product rate;
3) shaft bearing position outer diameter D 7 is used for identical with the rotor core section of cooperation outer diameter D 6 outside dimension with two bearings interdigit, two bearings interdigit is used for and the rotor core section of cooperation outer diameter D 6=axis hole D4+0.006/+0, axle mode is entered with hot jacket, do not need beading or annular knurl, decrease the shaft distortion that stress in the course of processing causes, improve production efficiency and product quality, rotating shaft and axis hole adopt disc to coordinate, adhesion is higher, better reliability.
Accompanying drawing illustrates:
Fig. 1 is the stereogram of motor in embodiment;
Fig. 2 is the exploded view of motor in embodiment;
Fig. 3 is the structural representation of embodiment rotor iron core;
Fig. 4 is the assembling schematic diagram of stator core and rotor core in embodiment;
Fig. 5 is the structure chart of embodiment shaft.
Embodiment:
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
Embodiment one: as Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4 and Fig. 5, the present embodiment is a kind of motor, comprise rotating shaft 1, rotor assembly 2, stator module 3 and casing assembly 4, described casing assembly 4 comprises casing 41 and is arranged on front end housing 42 and the rear end cap 43 at casing 41 two ends respectively, rotor assembly 2 is arranged in rotating shaft 1, stator module 3 and casing 41 are installed together and are nested in outside rotor assembly 2, rotating shaft 1 two ends are bearing on the bearing 5 of front end housing 42 and rear end cap 43 respectively, described rotor assembly 2 comprises the rotor core 21 be overrided to form by some stamping forming rotor punchings 22, the shaft hole diameter size being positioned at the rotor punching 22 of rotor core 21 mid portion is D4, the shaft hole diameter size being positioned at the rotor punching 22 of rotor core 21 two end portions is D5, D5 is greater than D4.And meet D4 × 1.1≤D5≤D4 × 1.5.The shaft hole diameter size of 2 to 6 rotor punchings 22 is respectively had to be set to D5 at rotor core 21 two ends.Described stator module 3 comprises the stator core 31 be overrided to form by some stamping forming stator punchings 32 and the coil windings 33 be winding and installed on stator core 31, the internal diameter of stator core 31 is D1, the external diameter of rotor core 21 is D2, air gap D3 is formed, D3=(D1-D2)/2 between stator core 31 and rotor core 21.Rotating shaft 1 two ends are D7 for installing rotating shaft 1 external diameter of bearing 5, are that D6, D6 equal D7 between rotating shaft 1 two bearings 5 for installing rotating shaft 1 external diameter of rotor core 21.And meet D4≤D6≤D4+0.006.
Above embodiment is better embodiment of the present invention; but embodiments of the present invention are not limited thereto; other are any do not deviate from Spirit Essence of the present invention and principle under do change, modification, substitute, combine, simplify; be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (7)
1. a motor, comprise rotating shaft (1), rotor assembly (2), stator module (3) and casing assembly (4), rotor assembly (2) is arranged in rotating shaft (1), stator module (3) and casing assembly (4) are installed together and are nested in rotor assembly (2) outside, rotating shaft (1) two ends are bearing on the bearing (5) of casing assembly (4) respectively, it is characterized in that: described rotor assembly (2) comprises the rotor core (21) be overrided to form by some stamping forming rotor punchings (22), the shaft hole diameter size being positioned at the rotor punching (22) of rotor core (21) mid portion is D4, the shaft hole diameter size being positioned at the rotor punching (22) of rotor core (21) two end portions is D5, D5 is greater than D4.
2. a kind of motor according to claim 1, is characterized in that: D4 × 1.1≤D5≤D4 × 1.5.
3. a kind of motor according to claim 2, is characterized in that: respectively have the shaft hole diameter size of 2 to 6 rotor punchings (22) to be set to D5 at rotor core (21) two ends.
4. a kind of motor according to claim 1 or 2 or 3, it is characterized in that: described stator module (3) comprises the stator core (31) be overrided to form by some stamping forming stator punchings (32) and the coil windings (33) be winding and installed on stator core (31), the internal diameter of stator core (31) is D1, the external diameter of rotor core (21) is D2, air gap D3 is formed, D3=(D1-D2)/2 between stator core (31) and rotor core (21).
5. a kind of motor according to claim 4, it is characterized in that: rotating shaft (1) two ends are D7 for installing rotating shaft (1) external diameter of bearing (5), be that D6, D6 equal D7 for installing rotating shaft (1) external diameter of rotor core (21) between rotating shaft (1) two bearings (5).
6. a kind of motor according to claim 5, is characterized in that: D4≤D6≤D4+0.006.
7. a kind of motor according to claim 1 or 2 or 3, it is characterized in that: described casing assembly (4) comprises casing (41) and is arranged on front end housing (42) and the rear end cap (43) at casing (41) two ends respectively, and rotating shaft (1) two ends are bearing on the bearing (5) of front end housing (42) and rear end cap (43) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520215715.9U CN204615525U (en) | 2015-04-10 | 2015-04-10 | A kind of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520215715.9U CN204615525U (en) | 2015-04-10 | 2015-04-10 | A kind of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204615525U true CN204615525U (en) | 2015-09-02 |
Family
ID=53968049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520215715.9U Active CN204615525U (en) | 2015-04-10 | 2015-04-10 | A kind of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204615525U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901457A (en) * | 2015-06-08 | 2015-09-09 | 广东美的环境电器制造有限公司 | Motor rotor assembly and motor |
-
2015
- 2015-04-10 CN CN201520215715.9U patent/CN204615525U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901457A (en) * | 2015-06-08 | 2015-09-09 | 广东美的环境电器制造有限公司 | Motor rotor assembly and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |