CN219611530U - Manual release mechanism of external rotor motor for power-off braking - Google Patents
Manual release mechanism of external rotor motor for power-off braking Download PDFInfo
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- CN219611530U CN219611530U CN202320214326.9U CN202320214326U CN219611530U CN 219611530 U CN219611530 U CN 219611530U CN 202320214326 U CN202320214326 U CN 202320214326U CN 219611530 U CN219611530 U CN 219611530U
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- connecting screws
- magnetic yoke
- release mechanism
- manual release
- power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The utility model relates to the technical field of rehabilitation instrument braking, in particular to a manual release mechanism of an external rotor motor for power-off braking, which comprises a motor body, a mandrel, a stator and a rotor, wherein the mandrel, the stator and the rotor are arranged in the motor body, an inner shell is arranged at the outer end of the rotor, an outer shell is arranged at the outer side of the inner shell, friction plates and magnetic yokes are arranged in the outer shell, a driving disc and a release frame are arranged on the magnetic yokes, positioning blocks with the same number as that of connecting screws are arranged on the driving disc, connecting screw holes are formed in the positioning blocks, the connecting screw holes are matched with the connecting screws, a first spring is arranged on the connecting screws, and a ceiling nut is arranged at the outer end of each connecting screw. Compared with the traditional manual release mechanism, the device has the advantages that the first spring is added at the connecting screw rod on the driving disc, the first spring is used for buffering the suspended ceiling nut when the driving disc moves, the hard contact between the suspended ceiling nut and the driving disc is reduced, and accordingly the loosening condition of the suspended ceiling nut can be reduced.
Description
Technical Field
The utility model relates to the technical field of rehabilitation instrument braking, in particular to a manual release mechanism of an external rotor motor for power-off braking.
Background
The existing brake used on the motor mainly comprises a motor rotor, a brake spring sleeved on the motor rotor, a brake wheel and a brake ring arranged on an end cover, wherein the motor is electrified, the motor rotor generates axial displacement under the action of an axial magnetic field force, so that the brake wheel and the brake ring are separated, the motor can automatically rotate, and the brake spring is compressed; when the power is off, the axial magnetic force disappears, and the motor rotor generates axial displacement under the thrust of the braking spring, so that the fan braking wheel compresses the braking ring to generate friction force, and the motor is forced to stop rapidly.
When the motor brake is required to be released, the handle type manual release device is traditionally used, and the handle is arranged at the outer end of the electromagnetic power-off brake, and the friction plate connected with the driving disc is released by rotating the handle, but after the conventional manual release device is used for a long time, the suspended ceiling nut for fixing the friction plate is easy to loosen, and the manual release mechanism of the external rotor motor for power-off brake is provided for solving the problems.
Disclosure of Invention
The utility model aims to solve the defect that a suspended ceiling nut for fixing a friction plate is easy to loosen after the conventional manual release device in the prior art is used for a long time, and provides a manual release mechanism of an external rotor motor for power-off braking.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the manual release mechanism of the external rotor motor for power-off braking comprises a motor body, a mandrel, a stator and a rotor, wherein the mandrel, the stator and the rotor are arranged in the motor body;
the friction plate and the magnetic yoke are arranged in the outer shell, a plurality of second springs are arranged between the friction plate and the magnetic yoke, and a plurality of connecting screws are fixed on the friction plate and penetrate through the magnetic yoke and are in sliding fit with the magnetic yoke;
the magnetic yoke is fixed on the mandrel, a release frame is arranged on the inner side of the magnetic yoke, a driving disk is sleeved on the release frame, a plurality of propping blocks are arranged at the inner end of the release frame, and grooves matched with the propping blocks are formed in the driving disk;
the driving disc is provided with positioning blocks with the same number as the connecting screws, the positioning blocks are provided with connecting screw holes, the connecting screw holes are matched with the connecting screws, the connecting screws are provided with first springs, and the outer ends of the connecting screws are provided with suspended ceiling nuts;
the outside of shell body is installed through the axle sleeve rotation and is released the casing, the one side of release casing is inserted and is equipped with the handle, and the handle screw thread is installed on the release frame, when using, through rotating the handle, drive the release frame and rotate, make to support the kicking block and break away from the recess on the driving plate to push out the driving plate upwards, the driving plate drives the friction disc through connecting screw and keeps away from interior casing, carries out manual release operation to rotor motor.
As a preferable technical scheme of the utility model, two symmetrically arranged mounting screw holes are formed in the outer wall of the release frame, the inner end of the handle is provided with a threaded part matched with the mounting screw holes, the handle is in threaded connection with the mounting screw holes, so that the handle is convenient to mount, and meanwhile, the handle is fixed in different mounting screw holes, so that the outer rotor motor with different left and right directions can be manually released.
As a preferable technical scheme of the utility model, the number of the connecting screws is two to five, the connecting screws are uniformly distributed around the friction plate, and the plurality of connecting screws can improve the stability of the axial movement of the friction plate.
As a preferable technical scheme of the utility model, the bottom surface of the magnetic yoke is provided with the positioning holes with the same number as the second springs, the second springs are arranged in the positioning holes, and when the magnetic yoke is used, the friction plate is pushed to be attached to the inner shell body through the second springs to lock the motor, and the second springs are positioned through the positioning holes.
As a preferable technical scheme of the utility model, the top end of the positioning block is provided with the countersunk hole, the connecting screw hole is positioned in the countersunk hole, the first spring is positioned in the countersunk hole, the top end of the first spring is exposed out of the countersunk hole, and the first spring is positioned so as to avoid deflection when the driving disc moves axially.
The beneficial effects of the utility model are as follows:
1. compared with the traditional manual release mechanism, the device has the advantages that the first spring is added at the connecting screw rod on the driving disc, the first spring is used for buffering the suspended ceiling nut when the driving disc moves, the hard contact between the suspended ceiling nut and the driving disc is reduced, and accordingly the loosening condition of the suspended ceiling nut can be reduced.
2. Through all seting up the installation screw in the both sides of release frame, and handle and installation screw threaded connection, make the handle when the installation is convenient, through fixing in different installation screw, adaptable outer rotor motor that the left and right directions is different carries out manual release.
Drawings
Fig. 1 is a schematic structural diagram of a manual release mechanism of an external rotor motor for power-off braking according to the present utility model;
fig. 2 is a schematic structural diagram of a release frame and a driving disc in a manual release mechanism of an external rotor motor for power-off braking;
fig. 3 is a schematic structural diagram of connection between a connecting screw and a driving disc in a manual release mechanism of an external rotor motor for power-off braking;
fig. 4 is a schematic structural diagram of connection between a yoke and a friction plate in a manual release mechanism of an external rotor motor for power-off braking according to the present utility model;
fig. 5 is a schematic view of the bottom of fig. 4.
In the figure: 1. a motor body; 2. a mandrel; 3. a stator; 4. a rotor; 5. an inner housing; 6. an outer housing; 7. a yoke; 8. a friction plate; 9. a drive plate; 91. a positioning block; 92. a connecting screw hole; 93. a first spring; 10. a release rack; 101. installing a screw hole; 102. a pushing block; 11. a connecting screw; 12. a second spring; 13. a ceiling nut; 14. releasing the housing; 15. a handle; 16. a shaft sleeve.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-5, a manual release mechanism of an external rotor motor for power-off braking comprises a motor body 1, a mandrel 2 arranged in the motor body 1, a stator 3 and a rotor 4, wherein the stator 3 is fixed on the mandrel 2, meanwhile, a winding is arranged on the stator 3, the rotor 4 surrounds the periphery of the stator 3, an inner shell 5 is arranged at the outer end of the rotor 4, a friction plate 8 is arranged at the outer side of the inner shell 5, and the friction plate 8 is sleeved on the mandrel 2 in an empty mode;
an outer shell 6 is arranged on the outer side of the inner shell 5, and the outer shell 6 is fixed on the motor body 1; the friction plate 8 is positioned in the outer shell 6, the outer shell 6 is also provided with a magnetic yoke 7, the magnetic yoke 7 is provided with a central hole, the magnetic yoke 7 is sleeved on the mandrel 2 and is circumferentially fastened with the mandrel 2 into a whole through key connection, the axial direction of the magnetic yoke 7 is limited, meanwhile, the magnetic yoke 7 is provided with an exciting coil which is not shown in the figure, the axial end surface of the magnetic yoke 7 facing the friction plate 8 forms a containing cavity, and the exciting coil is arranged in the containing cavity;
wherein, a plurality of second springs 12 are arranged between the friction plate 8 and the magnetic yoke 7, positioning holes with the same number as the second springs 12 are formed on the bottom surface of the magnetic yoke 7, the second springs 12 are arranged in the positioning holes, and when in use, the friction plate 8 is pushed to be attached to the inner shell 5 by the second springs 12 to lock the motor, and the second springs 12 are positioned by the positioning holes;
meanwhile, a plurality of connecting screws 11 are fixed on the friction plate 8, the connecting screws 11 penetrate through the magnet yoke 7 and are in sliding fit with the magnet yoke 7, the number of the connecting screws 11 is two to five, the connecting screws 11 are uniformly distributed around the friction plate 8, and the plurality of connecting screws 11 can improve the stability of axial movement of the friction plate 8;
the magnetic yoke 7 is fixed on the mandrel 2, a release frame 10 is arranged on the inner side of the magnetic yoke 7, a driving disc 9 is sleeved on the release frame 10, three supporting blocks 102 which are circumferentially distributed are arranged at the inner end of the release frame 10, grooves matched with the supporting blocks 102 are formed in the driving disc 9, when the supporting blocks 102 are separated from the grooves, the driving disc 9 is pushed to move upwards, meanwhile, a friction plate 8 is driven to be far away from the inner shell 5, and otherwise, the friction plate 8 is pushed to be contacted with the inner shell 5 through a second spring 12, so that the rotor motor is locked;
the driving disc 9 is provided with positioning blocks 91 the same as the connecting screws 11 in number, the positioning blocks 91 are provided with connecting screw holes 92, the connecting screw holes 92 are matched with the connecting screws 11, the connecting screws 11 are provided with first springs 93, and the outer ends of the connecting screws 11 are provided with ceiling nuts 13;
it should be noted that, the top end of the positioning block 91 is provided with a countersunk hole, the connecting screw hole 92 is located in the countersunk hole, the first spring 93 is located in the countersunk hole, and the top end of the first spring 93 exposes out of the countersunk hole, so as to position the first spring 93 and avoid the offset when the driving disc 9 moves axially
The outside of the outer shell 6 is rotatably provided with a release shell 14 through a shaft sleeve 16, one side of the release shell 14 is inserted with a handle 15, the handle 15 is arranged on the release frame 10 in a threaded manner, when the release frame 10 is driven to rotate through rotating the handle 15, the propping block 102 is separated from a groove on the driving disc 9, the driving disc 9 is ejected upwards, and the driving disc 9 drives the friction plate 8 to be far away from the inner shell 5 through the connecting screw 11, so that manual release operation is carried out on the rotor motor.
It should be noted that, two installation screw holes 101 symmetrically arranged are formed on the outer wall of the release frame 10, and a threaded portion matched with the installation screw holes 101 is formed at the inner end of the handle 15, and the handle 15 is in threaded connection with the installation screw holes 101, so that the handle 15 is convenient to install, and meanwhile, the handle 15 is fixed in different installation screw holes 101, so that the outer rotor motors in different left and right directions can be manually released.
In this embodiment: when the handle 15 is rotated to release, the release frame 10 is driven to rotate, the propping block 102 is separated from the groove on the driving disc 9, the driving disc 9 is pushed upwards, the driving disc 9 drives the friction plate 8 to be far away from the inner shell 5 through the connecting screw 11, and the manual release operation is carried out on the rotor motor;
the device is different from the existing manual release mechanism in that the first spring 93 is arranged between the suspended ceiling nut 13 and the driving disc 9, and the suspended ceiling nut 13 is buffered when the driving disc 9 moves axially by the first spring 93, so that the hard contact between the suspended ceiling nut 13 and the driving disc 9 is reduced, and the loosening condition of the suspended ceiling nut 13 can be reduced;
meanwhile, by fixing the handle 15 in different mounting screw holes 101, manual release of the outer rotor motor in different left and right directions can be adapted.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (5)
1. The manual release mechanism of the external rotor motor for power-off braking comprises a motor body (1), a mandrel (2), a stator (3) and a rotor (4), wherein the mandrel (2), the stator (3) and the rotor (4) are arranged in the motor body (1), an inner shell (5) is arranged at the outer end of the rotor (4), an outer shell (6) is arranged at the outer side of the inner shell (5), and the outer shell (6) is fixed on the motor body (1);
the friction plate (8) and the magnetic yoke (7) are arranged in the outer shell (6), a plurality of second springs (12) are arranged between the friction plate (8) and the magnetic yoke (7), a plurality of connecting screws (11) are fixed on the friction plate (8), and the connecting screws (11) penetrate through the magnetic yoke (7) and are in sliding fit with the magnetic yoke (7);
the magnetic yoke (7) is fixed on the mandrel (2), and release frame (10) is installed to the inboard of magnetic yoke (7), and the cover is equipped with driving disk (9) on release frame (10), and the inner of release frame (10) is provided with a plurality of kicking blocks (102) to set up on driving disk (9) with the recess that props kicking block (102) looks adaptation, its characterized in that:
the driving disc (9) is provided with positioning blocks (91) the same as the connecting screws (11) in number, the positioning blocks (91) are provided with connecting screw holes (92), the connecting screw holes (92) are matched with the connecting screws (11), the connecting screws (11) are provided with first springs (93), and the outer ends of the connecting screws (11) are provided with suspended ceiling nuts (13);
the outside of shell body (6) is installed through axle sleeve (16) rotation and is released casing (14), handle (15) are inserted to one side of release casing (14), and handle (15) screw thread is installed on release frame (10).
2. The manual release mechanism of an external rotor motor for power-off braking according to claim 1, wherein two symmetrically arranged mounting screw holes (101) are formed in the outer wall of the release frame (10), and a threaded portion matched with the mounting screw holes (101) is arranged at the inner end of the handle (15).
3. The manual release mechanism of an external rotor motor for electric-power-failure braking according to claim 1, characterized in that the number of the connecting screws (11) is two to five, and the connecting screws (11) are uniformly distributed around the friction plate (8).
4. The manual release mechanism of an external rotor motor for power-off braking according to claim 1, wherein the bottom surface of the magnetic yoke (7) is provided with positioning holes the same as the second springs (12), and the second springs (12) are installed in the positioning holes.
5. The manual release mechanism of an external rotor motor for power-off braking according to claim 1, wherein a counter bore is formed at the top end of the positioning block (91), the connecting screw hole (92) is located in the counter bore, the first spring (93) is located in the counter bore, and the top end of the first spring (93) is exposed out of the counter bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320214326.9U CN219611530U (en) | 2023-02-15 | 2023-02-15 | Manual release mechanism of external rotor motor for power-off braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320214326.9U CN219611530U (en) | 2023-02-15 | 2023-02-15 | Manual release mechanism of external rotor motor for power-off braking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219611530U true CN219611530U (en) | 2023-08-29 |
Family
ID=87742441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320214326.9U Active CN219611530U (en) | 2023-02-15 | 2023-02-15 | Manual release mechanism of external rotor motor for power-off braking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219611530U (en) |
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2023
- 2023-02-15 CN CN202320214326.9U patent/CN219611530U/en active Active
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