CN211351861U - Integrated external rotor motor with encoder - Google Patents
Integrated external rotor motor with encoder Download PDFInfo
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- CN211351861U CN211351861U CN202020430192.0U CN202020430192U CN211351861U CN 211351861 U CN211351861 U CN 211351861U CN 202020430192 U CN202020430192 U CN 202020430192U CN 211351861 U CN211351861 U CN 211351861U
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- encoder
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- external rotor
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Abstract
The utility model provides an integral type external rotor electric machine with encoder belongs to motor technical field. The motor encoder solves the problems that an existing motor encoder is externally arranged, occupies space, and is low in transmission efficiency. The utility model discloses a stator structure and rotor structure, stator structure include stator disc and stator core, and rotor structure includes the external rotor and sets up a plurality of magnet steel on the external rotor, and the external rotor can rotate by relative stator disc, is equipped with the transmission hole on the external rotor with one heart, and the motor still includes the encoder subassembly, and the encoder subassembly includes encoder rotor and encoder stator, and the encoder stator is fixed on the stator disc, and the encoder rotor is fixed on the external rotor. The utility model has the advantages of combine encoder and motor structure as an organic whole, compact structure, feedback signal are accurate.
Description
Technical Field
The utility model belongs to the technical field of the motor, relate to external rotor electric machine, in particular to integral type external rotor electric machine with encoder.
Background
The encoder of current motor all is external, installs outside motor housing, and not only the structure is not compact, and the encoder still needs other transmission structure to link to each other with the motor just can measure the feedback to the motor, and the transmission progression is many, not only transmission efficiency is low, and because the existence of transmission error, transmission accuracy also has certain influence.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned defect that exists to current motor, and the integral type external rotor electric machine who combines encoder and motor structure as an organic whole, compact structure, feedback signal accuracy that provides.
The purpose of the utility model can be realized by the following technical proposal:
the utility model provides an integral type external rotor electric machine with encoder, includes the stator structure and the rotor structure of inside and outside setting, stator structure includes the stator disc and fixes the stator core in the stator disc periphery, is equipped with the winding on the stator core, rotor structure includes the external rotor and sets up a plurality of magnet steel on the external rotor, and a plurality of magnet steel are located the external rotor and set gradually along the stator core periphery, and the external rotor can rotate above-mentioned stator disc relatively, is equipped with the transmission hole that supplies the transmission shaft to wear to establish with one heart on the external rotor, the motor still includes the encoder subassembly, and the encoder subassembly includes encoder rotor and encoder stator, and the encoder stator is fixed on the stator disc, and the encoder rotor is fixed on above.
In the integrated outer rotor motor with the encoder, one side of the outer rotor is provided with an installation surface, and the installation surface is provided with a plurality of installation holes for installing belt wheels.
In the integrated outer rotor motor with the encoder, an inner hole which penetrates through the stator disc along the axial direction of the stator disc is concentrically arranged on the stator disc, the inner hole is concentric with the transmission hole, and the transmission shaft sequentially penetrates through the inner hole and the transmission hole.
In the integrated outer rotor motor with the encoder, the transmission hole is a conical hole, and the aperture of the transmission hole is gradually reduced along the penetrating direction of the transmission shaft.
In the integrated outer rotor motor with the encoder, the encoder rotor and the encoder stator are concentrically arranged, and the encoder rotor is located in the encoder stator.
In the above-mentioned integrated external rotor motor with an encoder, the external rotor includes an annular portion, a side portion disposed on one side of the annular portion, and a short shaft portion and a boss portion respectively disposed on both sides of the side portion, the short shaft portion is located in the annular portion, the short shaft portion is concentric with the transmission hole, the transmission hole penetrates through the short shaft portion, the encoder rotor is concentrically and tightly sleeved on the short shaft portion, the mounting surface is a surface of the boss portion facing outward, and the mounting hole is opened on the boss portion.
In the integrated external rotor motor with the encoder, the boss part is circular and is concentrically arranged with the transmission hole.
In the integrated external rotor motor with the encoder, a key groove which extends through the transmission hole along the axial direction of the transmission hole is further arranged in the transmission hole.
In the integrated outer rotor motor with the encoder, the mounting hole is a threaded hole.
Compared with the prior art, the utility model embeds the encoder in the motor, and combines the encoder and the motor into a whole, thereby having compact structure and good integrity; the encoder rotor and the outer rotor are fixed to realize synchronous rotation, indirect transmission measurement through other transmission structures is not needed, the measurement accuracy is high, and signal feedback is accurate; the outer rotor can directly drive the transmission shaft of the equipment, so that the transmission stage number is reduced, the transmission efficiency is high, the space is saved, and the manufacturing cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, a stator disc; 2. a stator core; 3. a winding; 4. magnetic steel; 5. an annular portion; 6. a side portion; 7. a short shaft portion; 8. a boss portion; 9. a mounting surface; 10. a screw hole; 11. a drive shaft; 12. a drive bore; 13. a nut; 14. an encoder rotor; 15. an encoder stator.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in FIG. 1, the utility model provides an integral type external rotor electric machine with encoder, stator structure and rotor structure including inside and outside concentric setting.
The stator structure comprises a stator disc 1 and a stator core 2 fixed on the periphery of the stator disc 1, when the motor is installed, the stator disc 1 is fixedly arranged on equipment such as a machine tool, the stator disc 1 is circular, an inner hole which penetrates through the stator disc 1 along the axial direction of the stator disc 1 is concentrically arranged on the stator disc 1, the stator core 2 is fixed on the periphery of the stator disc 1 and is concentric with the stator disc 1, the stator core 2 is close to the right end of the stator disc 1, and a winding 3 is arranged on the stator core 2;
the rotor structure comprises an outer rotor and a plurality of magnetic steels 4 arranged on the outer rotor, the outer rotor is concentric with the stator disc 1, the outer rotor can rotate relative to the stator disc 1, the outer rotor comprises an annular part 5, a side part 6 arranged on one side of the annular part 5, short shaft parts 7 and a boss part 8, the short shaft parts 7 and the boss part 8 are respectively arranged on two sides of the side part 6, the annular part 5 is annular and is positioned outside the stator core 2, the magnetic steels 4 are fixed on the inner wall of the annular part 5, the magnetic steels 4 are sequentially arranged at intervals along the periphery of the stator core 2, the side part 6 is positioned at the right end of the stator disc 1, the short shaft parts 7 and the boss part 8 are concentric with the side part 6, the short shaft parts 7 are positioned in the annular part;
the right side surface of the boss part 8 is an installation surface 9, a plurality of installation holes 10 for installing belt wheels are formed in the installation surface 9, and the installation holes 10 are threaded holes;
the outer rotor is concentrically provided with a transmission hole 12 for a transmission shaft 11 of equipment such as a machine tool to penetrate through, the transmission hole 12 penetrates through the outer rotor, the transmission hole 12 is a conical hole, the large end of the conical hole is positioned at the left end, a key groove which extends along the axial direction of the transmission hole 12 and penetrates through the transmission hole 12 is further arranged in the transmission hole 12, the transmission shaft 11 sequentially penetrates through an inner hole of the stator disc 1 and the transmission hole 12 from left to right and then is in threaded connection with a nut 13, and the transmission shaft 11 is connected with the outer rotor through the transmission hole 12 and is relatively fixed, so that synchronous rotation.
This external rotor electric machine still includes the encoder subassembly, and the encoder subassembly includes encoder rotor 14 and encoder stator 15 that the concentric setting, and encoder rotor 14 is located encoder stator 15, and encoder rotor 14 tight cover is on the minor axis, and encoder stator 15 is fixed on stator disc 1, and the external rotor rotates and drives encoder rotor 14, transmission shaft 11 synchronous revolution.
It is to be understood that in the claims, the specification of the present invention, all "including … …" are to be interpreted in an open-ended manner, i.e. in a manner equivalent to "including at least … …", and not in a closed manner, i.e. in a manner not to be interpreted as "including … … only".
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (9)
1. An integrated external rotor motor with an encoder comprises a stator structure and a rotor structure which are arranged inside and outside, it is characterized in that the stator structure comprises a stator disc (1) and a stator core (2) fixed on the periphery of the stator disc (1), the stator core (2) is provided with a winding (3), the rotor structure comprises an outer rotor and a plurality of magnetic steels (4) arranged on the outer rotor, the plurality of magnetic steels (4) are positioned in the outer rotor and are sequentially arranged along the periphery of a stator core (2), the outer rotor can rotate relative to the stator disc (1), a transmission hole (12) for a transmission shaft (11) to penetrate through is concentrically arranged on the outer rotor, the motor also comprises an encoder assembly, the encoder assembly comprises an encoder rotor (14) and an encoder stator (15), the encoder stator (15) is fixed on the stator disc (1), and the encoder rotor (14) is fixed on the outer rotor.
2. The integrated external rotor motor with encoder as claimed in claim 1, wherein said external rotor has a mounting surface (9) on one side, and the mounting surface (9) has a plurality of mounting holes (10) for mounting the pulley.
3. The integrated external rotor motor with the encoder according to claim 1 or 2, wherein the stator disc (1) is concentrically provided with an inner hole which penetrates through the stator disc (1) along the axial direction of the stator disc (1), the inner hole is concentric with the transmission hole (12), and the transmission shaft (11) sequentially penetrates through the inner hole and the transmission hole (12).
4. The integrated external rotor motor with the encoder according to claim 3, wherein the transmission hole (12) is a conical hole, and the diameter of the transmission hole (12) is gradually reduced along the direction of the transmission shaft (11).
5. The integrated external rotor motor with an encoder according to claim 4, wherein the encoder rotor (14) and the encoder stator (15) are concentrically arranged and the encoder rotor (14) is located in the encoder stator (15).
6. The integrated external rotor motor with an encoder according to claim 2, wherein the external rotor comprises a ring portion (5), a side portion (6) disposed at one side of the ring portion (5), and a short shaft portion (7) and a boss portion (8) respectively disposed at two sides of the side portion (6), the short shaft portion (7) is located in the ring portion (5), the short shaft portion (7) is concentric with the transmission hole (12), the transmission hole (12) penetrates through the short shaft portion (7), the encoder rotor (14) is concentrically and tightly sleeved on the short shaft portion (7), the mounting surface (9) is a surface facing outward of the boss portion (8), and the mounting hole (10) is opened on the boss portion (8).
7. The integrated external rotor motor with encoder according to claim 6, wherein the boss portion (8) is circular and is concentrically arranged with the transmission hole (12).
8. The integrated external rotor motor with the encoder as claimed in claim 1 or 2, wherein a key groove extending through the transmission hole (12) along the axial direction of the transmission hole (12) is further provided in the transmission hole (12).
9. The integrated external rotor motor with an encoder according to claim 2, wherein the mounting hole (10) is a threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020430192.0U CN211351861U (en) | 2020-03-30 | 2020-03-30 | Integrated external rotor motor with encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020430192.0U CN211351861U (en) | 2020-03-30 | 2020-03-30 | Integrated external rotor motor with encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211351861U true CN211351861U (en) | 2020-08-25 |
Family
ID=72108829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020430192.0U Active CN211351861U (en) | 2020-03-30 | 2020-03-30 | Integrated external rotor motor with encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211351861U (en) |
-
2020
- 2020-03-30 CN CN202020430192.0U patent/CN211351861U/en active Active
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