CN211209505U - Motor with self-locking structure - Google Patents
Motor with self-locking structure Download PDFInfo
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- CN211209505U CN211209505U CN201922337589.5U CN201922337589U CN211209505U CN 211209505 U CN211209505 U CN 211209505U CN 201922337589 U CN201922337589 U CN 201922337589U CN 211209505 U CN211209505 U CN 211209505U
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- motor
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- self
- bearing
- retainer ring
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Abstract
The utility model relates to the technical field of motors, a motor with self-locking structure is disclosed, including motor body and the pivot that runs through this body, its characterized in that still include one with motor body connects's end cover, the end cover by the lid, be fixed in bearing retainer ring in this lid, overlap the bearing of arranging in this bearing retainer ring, with friction disc, the cover that the pivot contacted are arranged in the integrated structure that the outer spring of friction disc constitutes jointly, wherein be equipped with a recess on the inner wall of lid be equipped with one on the friction disc with recess assorted arch. The utility model has the advantages that the bearing retainer ring, the bearing, the friction plate and the spring are assembled in the end cover and are of an integrated structure, so that the structure is simple and stable, and the installation is convenient.
Description
Technical Field
The utility model relates to the technical field of motors, especially indicate a motor with self-locking structure.
Background
Usually, the rotor of the dc brush motor is a permanent magnet, and when the motor is powered off, the rotor can continue to rotate due to the action of inertia and a weak magnetic field. In order to enable the rotor to be quickly stopped after the motor is powered off, various schemes are made by people in the technical field. However, the various self-locking schemes adopted for the rotor in the prior art also have the following disadvantages in conclusion:
1) the installation is carried out manually, when a rotor is inserted into a stator, the shaft tail is difficult to insert into an end cover under the condition of slight inaccurate positioning, and meanwhile, a damaged friction plate is easy to insert, and the installation method needs professional training and forms installation memory;
2) riveting installation, which is difficult to achieve manually unless an automated line is used;
3) the friction plate is difficult to mount and return after being repaired and disassembled, and the friction plate is easy to be knocked and broken by the shaft top;
4) the problems of small self-locking torque and insufficient self-locking capacity exist in the electromagnetic self-locking;
5) the physical friction self-locking is adopted, the installation process is complicated, and the production cost is high.
The utility model discloses a remedy prior art not enough, developed a self-locking structure of motor, not only simple structure, installation are convenient, and the auto-lock ability is far beyond prior art moreover.
SUMMERY OF THE UTILITY MODEL
The invention aims to provide a motor with a self-locking structure, which has the advantages of simple structure, convenient installation and strong self-locking capability.
In order to realize the technical characteristics, the utility model discloses a structural scheme is: the motor comprises a motor body, a rotating shaft penetrating through the motor body and an end cover connected with the motor body, wherein the end cover is an integrated structure formed by a cover body, a bearing retainer ring fixed in the cover body, a bearing sleeved in the bearing retainer ring, a friction plate contacted with the rotating shaft and a spring sleeved outside the friction plate, a groove is formed in the inner wall of the cover body, and a bulge matched with the groove is formed in the friction plate.
The cover body comprises a cover plate fixedly connected with the motor body through a fastener and a cover cap used for covering the bearing retainer ring, the bearing, the friction plate and the spring, the cover body and the cover cap are integrally molded through injection, and the groove is formed in the top end of the cover cap.
The friction plates are three, a gap larger than or equal to 1mm exists between every two adjacent friction plates, and the protrusions are arranged on one of the friction plates.
The utility model has the advantages that the bearing retainer ring, the bearing, the friction plate and the spring are assembled in the end cover and are of an integrated structure, so that the structure is simple and stable, and the installation is convenient.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic cross-sectional view of the overall structure of a motor with a self-locking structure according to the present invention;
fig. 2 is a schematic view of a structural relationship between an internal structure of a cover 31 and a rotating shaft 2 in a motor with a self-locking structure according to the present invention;
fig. 3 is a partial schematic view of the structural relationship of the cover 31 in the motor with the self-locking structure of the present invention
Fig. 4 is a schematic sectional view of a structural relationship between the end cap 3 and the rotating shaft 2 in the motor with the self-locking structure according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the invention. However, the technical solution claimed in the present invention can be realized without these technical details and various changes and modifications based on the following embodiments.
Referring to fig. 1 to 4, the present invention provides a motor with a self-locking structure, which includes a motor body 1, a rotating shaft 2 penetrating through the motor body 1, and an end cover 3 connected to the motor body 1. The end cap 3 is an integrated structure formed by a cap 31, a bearing retainer 32 fixed in the cap 31, a bearing 33 sleeved in the bearing retainer 32 and supporting the rotation of the rotating shaft 2, a friction plate 34 contacting with the rotating shaft 2, and a spring 35 sleeved outside the friction plate 34.
The cover 31 is formed by integrally injection-molding a cover plate 311 and a cap 312, the cover plate 311 is fixedly connected to an end portion of the motor body 1 by a fastener, and the cap 312 encloses the retainer ring 32, the bearing 33, the friction plate 34, and the spring 35. A groove 36 is arranged on the inner wall of the top end of the cap 312;
the friction plates 34 are three, a gap larger than or equal to 1mm exists between every two adjacent friction plates 34, a protrusion 37 is arranged on one friction plate 34, the protrusion 37 is matched with the groove 36 and can be clamped in the groove 36, and therefore the friction plates 34 are prevented from rotating.
As described above, the rotating shaft 2 passes through the bearing 33 and is located in the cap 312, and the periphery of the rotating shaft 2 contacts with the three friction plates 34, when the motor is powered off, the three friction plates 34 tightly hold the rotating shaft 2 which is rotated by inertia under the action of the spring 35, and the rotating shaft 2 stops rotating by utilizing the friction force generated between the friction plates 34 and the rotating shaft 2, so as to achieve the self-locking effect. 30-60 mN.m.
The utility model discloses an assemble retaining ring 32, bearing 33, friction disc 34, spring 35 in end cover 3 and rather than being the integral structure, not only simple structure is firm, and it is convenient to install moreover.
It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.
Claims (3)
1. The motor with the self-locking structure comprises a motor body and a rotating shaft penetrating through the motor body, and is characterized by further comprising an end cover connected with the motor body, wherein the end cover is an integrated structure formed by a cover body, a bearing retainer ring fixed in the cover body, a bearing sleeved in the bearing retainer ring, a friction plate contacted with the rotating shaft and a spring sleeved outside the friction plate, a groove is formed in the inner wall of the cover body, and a bulge matched with the groove is formed in the friction plate.
2. The motor with the self-locking structure as claimed in claim 1, wherein the cover comprises a cover plate fixedly connected with the motor body through a fastener, and a cap for covering the retainer ring, the bearing, the friction plate and the spring, the cover and the cap are integrally injection-molded, and the groove is opened at the top end of the cap.
3. The motor with the self-locking structure as claimed in claim 1, wherein the friction plates are three, a gap of 1mm or more is formed between adjacent friction plates, and the protrusion is provided on one of the friction plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922337589.5U CN211209505U (en) | 2019-12-23 | 2019-12-23 | Motor with self-locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922337589.5U CN211209505U (en) | 2019-12-23 | 2019-12-23 | Motor with self-locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211209505U true CN211209505U (en) | 2020-08-07 |
Family
ID=71851985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922337589.5U Active CN211209505U (en) | 2019-12-23 | 2019-12-23 | Motor with self-locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211209505U (en) |
-
2019
- 2019-12-23 CN CN201922337589.5U patent/CN211209505U/en active Active
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