CN215186318U - Double-output-shaft motor with built-in encoder - Google Patents
Double-output-shaft motor with built-in encoder Download PDFInfo
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- CN215186318U CN215186318U CN202120882026.9U CN202120882026U CN215186318U CN 215186318 U CN215186318 U CN 215186318U CN 202120882026 U CN202120882026 U CN 202120882026U CN 215186318 U CN215186318 U CN 215186318U
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Abstract
The utility model discloses a two play axle motors of built-in encoder, locate the epaxial external rotor of stator including stator shaft and rotation cover, the one end of stator shaft is exposed in the external rotor and is formed and expose the end, and the other end of stator shaft is equipped with the encoder subassembly, is equipped with in the external rotor with encoder subassembly matched with sensor, the one end that the stator shaft was kept away from to the external rotor exposes the end have with the coaxial bulge that sets up of stator shaft, the cover is equipped with first bearing on the bulge. The double-output-shaft motor with the built-in encoder not only realizes double output shafts, but also realizes the built-in encoder, thereby improving the stability of mechanical properties and reducing the occupied space of the whole machine. The double-output-shaft motor with the built-in encoder has the advantages of simple structure, low manufacturing cost and good stability of the whole machine.
Description
Technical Field
The utility model relates to an electrical equipment technical field especially relates to two play axle motors of built-in encoder.
Background
The existing motors with magnetic encoders (or other encoders) generally adopt two schemes: 1. the motor is provided with two output shafts, and the encoder is arranged outside; 2. the motor is single-output shaft and the encoder is built-in.
Typically, the magnetic encoder (or other encoder) needs to be aligned with the rotating shaft, so the motor built-in encoder and the dual output shaft cannot coexist. However, the single output shaft of the built-in encoder is usually used in a scene with small torque, and under the condition of large torque, the single output shaft motor and the fixed structure are easy to generate torsional deformation, so that a double output shaft motor is needed at the moment; the external encoder increases the system number, size and cost. Under the condition of large moment, the realization of double output shafts and built-in encoders is the next strong requirement.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a dual output shaft motor with a built-in encoder is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: the double-output-shaft motor with the built-in encoder comprises a stator shaft and an outer rotor which is rotatably sleeved on the stator shaft, wherein one end of the stator shaft is exposed out of the outer rotor to form an exposed end, the other end of the stator shaft is provided with an encoder assembly, a sensor matched with the encoder assembly is arranged in the outer rotor, one end, far away from the exposed end of the stator shaft, of the outer rotor is provided with a protruding portion which is coaxial with the stator shaft, and a first bearing is sleeved on the protruding portion.
Further, the outer rotor is connected with the stator shaft through two second bearings arranged at intervals.
Furthermore, a first shaft shoulder is arranged on the stator shaft, and the second bearing close to the exposed end abuts against the first shaft shoulder.
Further, the other end of stator shaft is equipped with the second shaft shoulder, the cover is equipped with the installation department on the second shaft shoulder, be equipped with the third shaft shoulder on the installation department, keep away from expose the end the second bearing supports and leans on the third shaft shoulder, the encoder subassembly is located on the installation department.
Furthermore, one end of the installation part, which is far away from the exposed end, is provided with an installation groove for installing the encoder assembly.
Furthermore, the outer rotor comprises a peripheral plate and two end plates arranged at intervals, the two end plates are fixedly connected through the peripheral plate, and the two end plates are respectively connected with the stator shaft through two second bearings.
Further, the encoder assembly comprises a circuit board and an encoder arranged on the circuit board, and the encoder is arranged corresponding to the axis of the stator shaft.
Furthermore, the stator shaft is provided with a wire passing hole, and the two ends of the stator shaft are penetrated through by the wire passing hole.
Furthermore, a fourth shaft shoulder is arranged on the protruding portion, and the first bearing sleeve is arranged on the fourth shaft shoulder in a sleeved mode.
Furthermore, the exposed end of the stator shaft is provided with a connecting part, and the connecting part is provided with a connecting hole.
The beneficial effects of the utility model reside in that: the double-output-shaft motor with the built-in encoder not only realizes double output shafts, but also realizes the built-in encoder, thereby improving the stability of mechanical properties and reducing the occupied space of the whole machine. The double-output-shaft motor with the built-in encoder has the advantages of simple structure, low manufacturing cost and good stability of the whole machine.
Drawings
Fig. 1 is a schematic structural view of a dual output shaft motor with a built-in encoder according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of another view angle of the dual output shaft motor with a built-in encoder according to the first embodiment of the present invention;
fig. 3 is a cross-sectional view of a built-in encoder according to a first embodiment of the present invention.
Description of reference numerals:
1. a stator shaft; 11. an exposed end; 12. a first shoulder; 13. a second shoulder; 14. a wiring hole;
2. an outer rotor; 21. a projection; 211. a fourth shoulder; 22. a peripheral plate; 23. an end plate;
3. an encoder assembly;
4. a sensor;
5. a first bearing;
6. a second bearing;
7. an installation part; 71. mounting grooves; 72. a third shoulder;
8. a connecting portion; 81. and connecting the holes.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 3, the dual-output shaft motor with a built-in encoder includes a stator shaft 1 and an outer rotor 2 rotatably sleeved on the stator shaft 1, one end of the stator shaft 1 is exposed out of the outer rotor 2 to form an exposed end 11, the other end of the stator shaft 1 is provided with an encoder assembly 3, a sensor 4 matched with the encoder assembly 3 is arranged in the outer rotor 2, one end of the outer rotor 2, which is far away from the exposed end 11 of the stator shaft 1, is provided with a protruding portion 21 coaxially arranged with the stator shaft 1, and a first bearing 5 is sleeved on the protruding portion 21.
The utility model discloses a structural principle brief follows as follows: under the condition of large moment, all the force is borne by the stator shaft 1, and all parts of the whole machine cannot generate torsional deformation, so that double output shafts are realized and the encoder is arranged in the machine.
From the above description, the beneficial effects of the present invention are: the double-output-shaft motor with the built-in encoder not only realizes double output shafts, but also realizes the built-in encoder, thereby improving the stability of mechanical properties and reducing the occupied space of the whole machine. The double-output-shaft motor with the built-in encoder has the advantages of simple structure, low manufacturing cost and good stability of the whole machine.
Further, the outer rotor 2 is connected with the stator shaft 1 through two second bearings 6 arranged at intervals.
As is apparent from the above description, the second bearing 6 is provided so that the outer rotor 2 can smoothly rotate with respect to the stator shaft 1.
Further, a first shaft shoulder 12 is arranged on the stator shaft 1, and the second bearing 6 close to the exposed end 11 abuts against the first shaft shoulder 12.
As apparent from the above description, the provision of the first shoulder 12 can improve the mounting accuracy of the second bearing 6 and ensure the structural stability of the motor.
Further, the other end of stator shaft 1 is equipped with second shaft shoulder 13, the cover is equipped with installation department 7 on the second shaft shoulder 13, be equipped with third shaft shoulder 72 on the installation department 7, keep away from expose end 11 second bearing 6 supports and leans on third shaft shoulder 72, encoder subassembly 3 is located on the installation department 7.
As can be seen from the above description, the installation portion 7 can facilitate the processing and manufacturing of the stator shaft 1, and can provide a large enough installation position for the encoder assembly 3, thereby facilitating the installation stability of the encoder assembly 3.
Furthermore, one end of the mounting portion 7, which is far away from the exposed end 11, is provided with a mounting groove 71 for mounting the encoder assembly 3.
As can be seen from the above description, the installation groove 71 is provided to facilitate positioning and installation of the encoder assembly 3.
Further, the outer rotor 2 includes a peripheral plate 22 and two end plates 23 arranged at an interval, the two end plates 23 are connected and fixed through the peripheral plate 22, and the two end plates 23 are respectively connected with the stator shaft 1 through the two second bearings 6.
As can be seen from the above description, the outer rotor 2 has a simple structure, is easy to manufacture, and is easy to assemble with the stator shaft 1.
Further, the encoder assembly 3 comprises a circuit board and an encoder arranged on the circuit board, wherein the encoder is arranged corresponding to the axis of the stator shaft 1.
Furthermore, a wire hole 14 is formed in the stator shaft 1, and the wire hole 14 penetrates through two ends of the stator shaft 1.
As can be seen from the above description, the cable electrically connected to the encoder assembly 3 can be routed through the routing hole 14.
Further, a fourth shaft shoulder 211 is arranged on the protruding portion 21, and the first bearing 5 is sleeved on the fourth shaft shoulder 211.
As is apparent from the above description, the provision of the third shoulder 72 on the projection 21 can improve the mounting accuracy of the first bearing 5 and ensure the structural stability of the motor.
Further, the exposed end 11 of the stator shaft 1 is provided with a connecting portion 8, and the connecting portion 8 is provided with a connecting hole 81.
As is apparent from the above description, the stator shaft 1 is fixedly coupled to an external member through the coupling hole 81.
Example one
Referring to fig. 1 to fig. 3, a first embodiment of the present invention is: the dual output shaft motor with built-in encoder can be used for fitness equipment and the like, wherein the fitness equipment comprises but is not limited to tension exercise equipment, weight exercise equipment and the like.
The double-output-shaft motor with the built-in encoder comprises a stator shaft 1 and an outer rotor 2 which is rotatably sleeved on the stator shaft 1, one end of the stator shaft 1 is exposed out of the outer rotor 2 to form an exposed end 11, an encoder assembly 3 is arranged at the other end of the stator shaft 1, a sensor 4 matched with the encoder assembly 3 is arranged in the outer rotor 2, a protruding portion 21 which is coaxially arranged with the stator shaft 1 is arranged at one end, away from the exposed end 11 of the stator shaft 1, of the outer rotor 2, and a first bearing 5 is sleeved on the protruding portion 21. The first bearing 5 and the exposed end 11 are respectively connected and fixed with an external component, and the external component includes but is not limited to a fixed bracket of the fitness equipment.
As shown in fig. 3, in detail, the encoder assembly 3 includes a circuit board and an encoder provided on the circuit board, the encoder being disposed corresponding to an axis of the stator shaft 1. It will be understood that the sensor 4 is also arranged in correspondence with the axis of the stator shaft 1. In this embodiment, the encoder is a magnetic encoder chip, and the sensor 4 is a magnet. It should be noted that the encoder assembly 3 and the sensor 4 may also be of other types, and need not be magnetic encoders.
As shown in fig. 3, in particular, the outer rotor 2 is connected to the stator shaft 1 via two second bearings 6 arranged at intervals. In this embodiment, the outer rotor 2 includes a peripheral plate 22 and two end plates 23 arranged at an interval, the two end plates 23 are connected and fixed by the peripheral plate 22, and the two end plates 23 are respectively connected with the stator shaft 1 by the two second bearings 6.
As shown in fig. 3, in order to ensure that the encoder assembly 3 has a sufficient mounting position and simplify the structure of the stator shaft 1, a mounting portion 7 is provided at one end of the stator shaft 1 away from the exposed end 11, and the encoder assembly 3 is provided on the mounting portion 7. In order to facilitate positioning and assembling of the encoder assembly 3, optionally, one end of the mounting portion 7, which is far away from the exposed end 11, is provided with a mounting groove 71 for mounting the encoder assembly 3. Preferably, the second bearing 6 far away from the exposed end 11 is sleeved on the mounting portion 7, that is, the second bearing 6 far away from the exposed end 11 is fixedly connected with the stator shaft 1 through the mounting portion 7, and the second bearing 6 far away from the exposed end 11 is fixedly connected with the end plate 23 far away from the exposed end 11.
Further, a first shaft shoulder 12 is arranged on the stator shaft 1, and the second bearing 6 close to the exposed end 11 abuts against the first shaft shoulder 12; a second shaft shoulder 13 is arranged at the other end of the stator shaft 1, and the mounting part 7 is sleeved on the second shaft shoulder 13; a third shoulder 72 is arranged on the mounting part 7, and the second bearing 6 far away from the exposed end 11 abuts against the third shoulder 72; the protruding portion 21 is provided with a fourth shoulder 211, and the first bearing 5 is sleeved on the fourth shoulder 211.
The stator shaft 1 is provided with a wire passing hole 14, the two ends of the stator shaft 1, which are penetrated through by the wire passing hole 14, and cables conducted with the encoder component 3 penetrate through the wire passing hole 14 and are electrically connected with external equipment.
As shown in fig. 2 and 3, the exposed end 11 of the stator shaft 1 is provided with a connecting portion 8, and the connecting portion 8 is provided with a connecting hole 81. The connecting portion 8 is fixedly connected with the exposed end 11, or the connecting portion 8 and the stator shaft 1 are of an integrally formed integrated structure. In detail, a connection screw is arranged in the connection hole 81, and the exposed end 11 of the stator shaft 1 is connected and fixed with an external component through the connection screw.
This built-in encoder's two play axle motors pass through connecting portion 8 reaches behind first bearing 5 and the external member are connected, under the big moment operating mode, strength conducts external rotor 2 earlier through first bearing 5, then conducts second bearing 6 again, conducts stator shaft 1 at last, and all strength are born by stator shaft 1, consequently, this built-in encoder's two play axle motors can bear big moment.
To sum up, the double-output shaft motor with the built-in encoder provided by the utility model not only realizes double output shafts, but also realizes built-in encoder, thereby reducing the occupied space of the whole machine while improving the stability of mechanical properties; the double-output-shaft motor with the built-in encoder has the advantages of simple structure, low manufacturing cost and good stability of the whole machine; the arrangement of the shaft shoulder can improve the installation precision and the structural stability of the motor; the provision of the mounting portion on the stator shaft can provide a sufficient mounting position for the encoder assembly.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (10)
1. The double-output-shaft motor with the built-in encoder comprises a stator shaft and an outer rotor which is sleeved on the stator shaft in a rotating mode, wherein one end of the stator shaft is exposed out of the outer rotor to form an exposed end, and the double-output-shaft motor is characterized in that: the other end of stator shaft is equipped with the encoder subassembly, is equipped with in the external rotor with encoder subassembly matched with sensor, and the one end that the external rotor kept away from the stator shaft's the end that exposes has the bulge with the coaxial setting of stator shaft, and the cover is equipped with first bearing on the bulge.
2. The dual output shaft motor with built-in encoder as claimed in claim 1, wherein: the outer rotor is connected with the stator shaft through two second bearings arranged at intervals.
3. The dual output shaft motor with built-in encoder as claimed in claim 2, wherein: and a first shaft shoulder is arranged on the stator shaft, and the second bearing close to the exposed end abuts against the first shaft shoulder.
4. The dual output shaft motor with built-in encoder as claimed in claim 2, wherein: the other end of stator shaft is equipped with the second shaft shoulder, the cover is equipped with the installation department on the second shaft shoulder, be equipped with the third shaft shoulder on the installation department, keep away from expose the end the second bearing supports and leans on the third shaft shoulder, the encoder subassembly is located on the installation department.
5. The dual output shaft motor with built-in encoder as claimed in claim 4, wherein: the mounting portion is kept away from the one end of exposing the end is equipped with and is used for installing the mounting groove of encoder subassembly.
6. The dual output shaft motor with built-in encoder as claimed in claim 2, wherein: the outer rotor comprises a peripheral plate and two end plates arranged at intervals, the two end plates are fixedly connected through the peripheral plate, and the two end plates are respectively connected with the stator shaft through the two second bearings.
7. The dual output shaft motor with built-in encoder as claimed in claim 1, wherein: the encoder assembly comprises a circuit board and an encoder arranged on the circuit board, and the encoder is arranged corresponding to the axis of the stator shaft.
8. The dual output shaft motor with built-in encoder as claimed in claim 1, wherein: the stator shaft is provided with wire holes, and the two ends of the stator shaft are penetrated through the wire holes.
9. The dual output shaft motor with built-in encoder as claimed in claim 1, wherein: and a fourth shaft shoulder is arranged on the protruding part, and the first bearing sleeve is arranged on the fourth shaft shoulder.
10. The dual output shaft motor with built-in encoder as claimed in claim 1, wherein: the stator shaft is provided with a connecting part at the exposed end, and the connecting part is provided with a connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120882026.9U CN215186318U (en) | 2021-04-26 | 2021-04-26 | Double-output-shaft motor with built-in encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120882026.9U CN215186318U (en) | 2021-04-26 | 2021-04-26 | Double-output-shaft motor with built-in encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215186318U true CN215186318U (en) | 2021-12-14 |
Family
ID=79364032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120882026.9U Active CN215186318U (en) | 2021-04-26 | 2021-04-26 | Double-output-shaft motor with built-in encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215186318U (en) |
-
2021
- 2021-04-26 CN CN202120882026.9U patent/CN215186318U/en active Active
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