CN220791868U - Be used for motor overspeed protection to use electromagnetic braking ware - Google Patents
Be used for motor overspeed protection to use electromagnetic braking ware Download PDFInfo
- Publication number
- CN220791868U CN220791868U CN202322371166.1U CN202322371166U CN220791868U CN 220791868 U CN220791868 U CN 220791868U CN 202322371166 U CN202322371166 U CN 202322371166U CN 220791868 U CN220791868 U CN 220791868U
- Authority
- CN
- China
- Prior art keywords
- electromagnetic
- brake block
- brake
- motor
- box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003068 static effect Effects 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Abstract
The utility model discloses an electromagnetic brake for motor overspeed protection, relates to the technical field of electromagnetic brakes, and aims to solve the problems that in the prior art, when an output shaft of a motor is braked, the speed of change of the rotation speed of the output shaft is inconvenient to adjust according to requirements, and the flexibility is poor. The novel electric motor is characterized in that a dynamic friction disc is fixedly arranged on one side of the output shaft, a static friction disc is arranged on one side of the dynamic friction disc, the static friction disc is composed of an inner brake block and an outer brake block, an inner through hole is formed in the outer brake block, the inner brake block is arranged in the inner through hole, a long groove is formed in the outer brake block, a connecting groove is formed in the inner brake block, the number of the connecting groove is the same as that of the long groove, the positions of the connecting groove and the long groove are corresponding to each other, a vent hole is formed in the inner brake block, and the vent hole is communicated with the connecting groove.
Description
Technical Field
The utility model relates to the technical field of electromagnetic brakes, in particular to an electromagnetic brake for motor overspeed protection.
Background
The electromagnetic brake is an automatic executive component, mainly plays roles of transmitting power, controlling motion and the like in a mechanical transmission system, can brake the structure as required, has the characteristics of compact structure, simplicity in operation, sensitive response, easiness in realizing remote control and the like, and can often generate overspeed or stall conditions in the working process of the motor, and the electromagnetic brake is required to brake the output power of the motor;
for example, patent publication CN207069802U (an electromagnetic brake for motor): the device comprises a box body, wherein one end of the box body is provided with a port, an end cover is covered on the port, and an installation through hole is formed in the end cover; the inner chamber of box divide into from preceding brake chamber and the control chamber of arranging in proper order to the back, is equipped with brake block and brake clamp plate from preceding to the back in the brake chamber, and the external diameter of brake clamp plate is greater than the internal diameter of control chamber, characterized in that: the control cavity is divided into a first control cavity and a second control cavity, the first control cavity is positioned at the periphery of the second control cavity, the peripheral wall of the second control cavity is lower than the peripheral wall of the first control cavity, an electromagnetic coil is arranged in the first control cavity, a control rod is arranged in the second control cavity, one end of the control rod is connected with a brake pressing plate, the other end of the control rod is connected with a baffle plate, the baffle plate is positioned at the outer side of the bottom wall of the box body, an elastomer is sleeved on the control rod, and one end of the elastomer is connected with the brake pressing plate and the other end of the elastomer is connected with the bottom wall of the box body;
the prior art is convenient to increase the speed of the electromagnetic coil for releasing the brake pressing plate, but does not have the function of adjusting the braking speed for changing the output power of the motor, so that the speed of the change of the rotation speed of the output shaft is inconvenient to adjust according to the requirement when the output shaft of the motor is braked, and the flexibility is poor; therefore, the market is urgently required to develop an electromagnetic brake for motor overspeed protection to help people solve the existing problems.
Disclosure of Invention
The utility model aims to provide an electromagnetic brake for motor overspeed protection, which is used for solving the problems that the speed of rotation speed change of an output shaft is inconvenient to adjust according to the requirement and the flexibility is poor when an output shaft of a motor is braked in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an electromagnetic brake for motor overspeed protection, includes the output shaft, one side fixed mounting of output shaft has the dynamic friction disk, one side of dynamic friction disk is provided with the static friction disk, the static friction disk comprises interior brake block and outer brake block, the inside of outer brake block is provided with interior through-hole, interior brake block sets up in the inside of interior through-hole.
Preferably, the inside of outer brake block is provided with long recess, the inside of interior brake block is provided with the connection recess, the same and corresponding in position of connection recess and long recess quantity, the inside of interior brake block is provided with the air vent, and air vent and connection recess intercommunication.
Preferably, one side of static friction disc is provided with the electromagnetic box, one side of electromagnetic box is provided with outside straight-bar, and outside straight-bar and outer brake block pass through bolt fixed connection, the inside of electromagnetic box is provided with the second inner groovy, outside straight-bar pierces into the inside of second inner groovy, the inside of electromagnetic box is provided with the second solenoid along the outside of second inner groovy.
Preferably, an outer side spring is arranged between the electromagnetic box and the outer brake pad, a plurality of outer side springs are arranged, a first side plate is fixedly arranged on one side of the outer side spring, the first side plate is fixedly connected with the outer brake pad through a bolt, a second side plate is fixedly arranged on the other side of the outer side spring, and the second side plate is fixedly connected with the electromagnetic box through a bolt.
Preferably, one side of the electromagnetic box is provided with a middle straight rod, the middle straight rod is fixedly connected with the inner brake plate through a bolt, a first inner groove is formed in the electromagnetic box, the middle straight rod penetrates into the first inner groove, and a first electromagnetic coil is arranged in the electromagnetic box along the outer side of the first inner groove.
Preferably, an inner side spring is arranged between the electromagnetic box and the inner brake block, a plurality of inner side springs are arranged, a third side plate is fixedly arranged on one side of the inner side spring, the third side plate is fixedly connected with the inner brake block through a bolt, a fourth side plate is fixedly arranged on the other side of the inner side spring, and the fourth side plate is fixedly connected with the electromagnetic box through a bolt.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, through the arrangement of the static friction disc, the static friction disc consists of the inner brake disc and the outer brake disc, when the motor is braked at an overspeed or stall, the inner brake disc can be driven to move to be in contact with the dynamic friction disc, the motor output shaft is reduced in rotation speed through friction action, so that the motor output power is reduced, the motor is enabled to run stably, if emergency rapid braking is required, the inner brake disc and the outer brake disc can be driven to be in contact with the dynamic friction disc at the same time, the rapid braking of the motor is realized through increasing the contact area and enhancing friction, the flexibility of braking the motor is improved, and the practicability of the brake is improved.
2. According to the utility model, the long grooves are formed in the outer brake pad, and the connecting grooves and the vent holes are formed in the inner brake pad, so that air can conveniently circulate between the driven friction disc and the static friction disc in the braking process, heat dissipation can be performed in the braking process, overheat of the driven friction disc and the static friction disc is prevented, abrasion is reduced to a certain extent, and the service lives of the driven friction disc and the static friction disc are prolonged.
Drawings
FIG. 1 is a front view of an electromagnetic brake for motor overspeed protection of the present utility model;
FIG. 2 is a side view of the static friction disk of the present utility model;
FIG. 3 is an enlarged schematic view of the portion A of the present utility model;
fig. 4 is a cross-sectional view of the electromagnetic box of the present utility model.
In the figure: 1. an output shaft; 2. a dynamic friction plate; 3. a static friction plate; 4. an electromagnetic box; 5. an inner spring; 6. a middle straight rod; 7. an outer spring; 8. an outer straight rod; 9. an inner brake pad; 10. an outer brake pad; 11. an inner through hole; 12. a first side plate; 13. a second side plate; 14. a first inner groove; 15. a first electromagnetic coil; 16. a second inner groove; 17. a second electromagnetic coil; 18. a long groove; 19. a connection groove; 20. and a vent hole.
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. 1-4, an embodiment of the present utility model is provided: the utility model provides an electromagnetic brake for motor overspeed protection, includes output shaft 1, output shaft 1 is the inside power output shaft body of motor, and one side fixed mounting of output shaft 1 has movable friction disk 2, and one side of movable friction disk 2 is provided with static friction disk 3, and static friction disk 3 comprises interior brake block 9 and outer brake block 10, and the inside of outer brake block 10 is provided with interior through-hole 11, and interior brake block 9 sets up in the inside of interior through-hole 11.
When the motor is braked at an overspeed or stalled speed, the inner brake pad 9 can be made to move and contact with the movable friction disk 2 in a fitting manner, the friction effect is adopted to brake, so that the rotating speed of the motor output shaft 1 is reduced, the motor output power is reduced, the motor is enabled to run stably, if emergency quick braking is required, the inner brake pad 9 and the outer brake pad 10 can be driven to contact with the movable friction disk 2 in a fitting manner, the contact area is increased, the friction is enhanced, the quick braking of the motor is realized, the flexibility of braking the motor is improved, and the practicability of the brake is improved.
Further, the inside of outer brake block 10 is provided with long recess 18, and the inside of interior brake block 9 is provided with connecting groove 19, and connecting groove 19 and long recess 18 quantity are the same and the position is corresponding, and the inside of interior brake block 9 is provided with air vent 20, and air vent 20 and connecting groove 19 intercommunication, be convenient for in braking process, make things convenient for circulation between air driven friction disk 2 and the quiet friction disk 3, can dispel the heat in the braking process, prevent that dynamic friction disk 2 and quiet friction disk 3 from overheating, reduce wearing and tearing to a certain extent, improved dynamic friction disk 2 and quiet friction disk 3's life.
Further, one side of static friction disc 3 is provided with electromagnetic box 4, one side of electromagnetic box 4 is provided with outside straight-bar 8, and outside straight-bar 8 passes through bolt fixed connection with outer brake pad 10, the inside of electromagnetic box 4 is provided with second inner groovy 16, outside straight-bar 8 pierces into the inside of second inner groovy 16, the inside of electromagnetic box 4 is provided with second solenoid 17 along the outside of second inner groovy 16, through being on and off to second solenoid 17, be convenient for order about outside straight-bar 8 indent electromagnetic box 4 and stretch out in the electromagnetic box 4.
Further, be provided with outside spring 7 between electromagnetic box 4 and the outer brake shoe 10, and outside spring 7 is provided with a plurality of, one side fixed mounting of outside spring 7 has first curb plate 12, and first curb plate 12 passes through bolt fixed connection with outer brake shoe 10, the opposite side fixed mounting of outside spring 7 has second curb plate 13, and second curb plate 13 passes through bolt fixed connection with electromagnetic box 4, outside spring 7's setting for after second solenoid 17 outage, through the elastic tension effect of outside spring 7, outer brake shoe 10 can remove and move friction disk 2 contact, the braking work of being convenient for.
Further, one side of the electromagnetic box 4 is provided with a middle straight rod 6, the middle straight rod 6 is fixedly connected with the inner brake piece 9 through a bolt, a first inner groove 14 is formed in the electromagnetic box 4, the middle straight rod 6 penetrates into the first inner groove 14, a first electromagnetic coil 15 is arranged in the electromagnetic box 4 along the outer side of the first inner groove 14, and the middle straight rod 6 is conveniently driven to retract into the electromagnetic box 4 and extend out of the electromagnetic box 4 by electrifying and de-electrifying the first electromagnetic coil 15.
Further, be provided with inboard spring 5 between electromagnetic box 4 and the interior brake block 9, and inboard spring 5 is provided with a plurality of, inboard spring 5 distributes in the outside of middle straight-bar 6, one side fixed mounting of inboard spring 5 has the third curb plate, and the third curb plate passes through bolt fixed connection with interior brake block 9, the opposite side fixed mounting of inboard spring 5 has the fourth curb plate, and the fourth curb plate passes through bolt fixed connection with electromagnetic box 4, thereby after first solenoid 15 outage, through the elastic tension effect of inboard spring 5, interior brake block 9 can remove and move the contact with movable friction disk 2, the braking work of being convenient for.
Working principle: when the motor is in use, when the motor is not braked, the first electromagnetic coil 15 and the second electromagnetic coil 17 are electrified respectively to generate magnetic field magnetic force, the middle straight rod 6 and the outer straight rod 8 are retracted into the electromagnetic box 4 respectively, the inner side spring 5 and the outer side spring 7 are stressed to compress, then when the motor is braked at an overspeed or stall, the first electromagnetic coil 15 can be powered off, the inner brake plate 9 is enabled to move to be in contact with the movable friction disc 2 under the tension action of the inner side spring 5, the rotating speed of the motor output shaft 1 is reduced through the friction action to brake, the motor output power is reduced, the motor is enabled to run stably, if emergency and rapid braking is required, the first electromagnetic coil 15 and the second electromagnetic coil 17 can be powered off simultaneously under the tension action of the inner side spring 5 and the outer side spring 7, the inner brake plate 9 and the outer brake plate 10 are enabled to be in contact with the movable friction disc 2 in a contact mode, the contact area is increased, the friction is enhanced to realize rapid braking of the motor, the flexibility of motor braking is improved, and the practicability of the brake is increased.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. An electromagnetic brake for motor overspeed protection, comprising an output shaft (1), characterized in that: one side fixed mounting of output shaft (1) has dynamic friction disk (2), one side of dynamic friction disk (2) is provided with static friction disk (3), static friction disk (3) are constituteed by interior brake block (9) and outer brake block (10), the inside of outer brake block (10) is provided with interior through-hole (11), interior brake block (9) set up in the inside of interior through-hole (11).
2. An electromagnetic brake for motor overspeed protection according to claim 1, characterized in that: the inside of outer brake block (10) is provided with long recess (18), the inside of interior brake block (9) is provided with connecting groove (19), connecting groove (19) are the same and the position is corresponding with long recess (18), the inside of interior brake block (9) is provided with air vent (20), and air vent (20) and connecting groove (19) intercommunication.
3. An electromagnetic brake for motor overspeed protection according to claim 1, characterized in that: one side of static friction disc (3) is provided with electromagnetic box (4), one side of electromagnetic box (4) is provided with outside straight-bar (8), and outside straight-bar (8) pass through bolt fixed connection with outer brake block (10), the inside of electromagnetic box (4) is provided with second indent (16), the inside that outside straight-bar (8) were threaded into second indent (16), the inside of electromagnetic box (4) is provided with second solenoid (17) along the outside of second indent (16).
4. An electromagnetic brake for motor overspeed protection according to claim 3, characterized in that: an outer side spring (7) is arranged between the electromagnetic box (4) and the outer brake pad (10), a plurality of outer side springs (7) are arranged, a first side plate (12) is fixedly arranged on one side of the outer side spring (7), the first side plate (12) is fixedly connected with the outer brake pad (10) through bolts, a second side plate (13) is fixedly arranged on the other side of the outer side spring (7), and the second side plate (13) is fixedly connected with the electromagnetic box (4) through bolts.
5. An electromagnetic brake for motor overspeed protection according to claim 3, characterized in that: one side of electromagnetic box (4) is provided with middle straight-bar (6), and middle straight-bar (6) and interior brake block (9) pass through bolt fixed connection, the inside of electromagnetic box (4) is provided with first inner groovy (14), the inside of first inner groovy (14) is worn into in middle straight-bar (6), the inside of electromagnetic box (4) is provided with first solenoid (15) along the outside of first inner groovy (14).
6. An electromagnetic brake for motor overspeed protection according to claim 5, wherein: an inner side spring (5) is arranged between the electromagnetic box (4) and the inner brake block (9), a plurality of inner side springs (5) are arranged, a third side plate is fixedly arranged on one side of the inner side spring (5), the third side plate is fixedly connected with the inner brake block (9) through bolts, a fourth side plate is fixedly arranged on the other side of the inner side spring (5), and the fourth side plate is fixedly connected with the electromagnetic box (4) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322371166.1U CN220791868U (en) | 2023-09-01 | 2023-09-01 | Be used for motor overspeed protection to use electromagnetic braking ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322371166.1U CN220791868U (en) | 2023-09-01 | 2023-09-01 | Be used for motor overspeed protection to use electromagnetic braking ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220791868U true CN220791868U (en) | 2024-04-16 |
Family
ID=90663597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322371166.1U Active CN220791868U (en) | 2023-09-01 | 2023-09-01 | Be used for motor overspeed protection to use electromagnetic braking ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220791868U (en) |
-
2023
- 2023-09-01 CN CN202322371166.1U patent/CN220791868U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211283318U (en) | Brake for traction machine | |
| CN210034218U (en) | Tooth-embedded electromagnetic clutch | |
| CN110873135A (en) | Micro-rail vehicle and electromagnetic brake thereof | |
| CN220791868U (en) | Be used for motor overspeed protection to use electromagnetic braking ware | |
| CN113638991A (en) | New forms of energy electric axle | |
| CN213202002U (en) | Disc brake of traction machine | |
| CN216951536U (en) | Electromagnetic braking harmonic speed reducer | |
| US4609080A (en) | Spring engaged double caliper disc brake | |
| CN211082629U (en) | Novel double-sided disc brake | |
| CN202301591U (en) | Automatic resetting disc brake | |
| CN209671464U (en) | A kind of heat dissipation plate, clutch and vehicle | |
| CN210469017U (en) | Motor braking device | |
| CN102401044A (en) | Automatic reset disc type brake | |
| KR100498690B1 (en) | Electric disk break system using electromagnetic force | |
| CN203492404U (en) | Brake device of electric mower | |
| CN220081995U (en) | Disc brake for traction machine | |
| CN112572376A (en) | Robot complete machine of disc-driven braking type braking system | |
| CN219388474U (en) | Motor band-type brake structure and motor | |
| CN215171733U (en) | Brake shoe abrasion sensor for wireless signal transmission | |
| CN110635615A (en) | Motor braking device | |
| CN210686775U (en) | Protruding axial fan type magnetic powder brake | |
| CN211820304U (en) | Novel brake screw for speed reduction motor | |
| CN217904196U (en) | Vertical motor braking device and vertical motor | |
| CN217784070U (en) | Double-sided friction electric braking type electromagnetic brake | |
| CN216131290U (en) | Claw type eddy current brake |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |