CN106921314B - Brake for power-off of wheelchair motor - Google Patents
Brake for power-off of wheelchair motor Download PDFInfo
- Publication number
- CN106921314B CN106921314B CN201710323874.4A CN201710323874A CN106921314B CN 106921314 B CN106921314 B CN 106921314B CN 201710323874 A CN201710323874 A CN 201710323874A CN 106921314 B CN106921314 B CN 106921314B
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- China
- Prior art keywords
- motor
- electromagnet
- brake
- spring
- rotating disc
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- 230000006835 compression Effects 0.000 claims abstract description 5
- 238000007906 compression Methods 0.000 claims abstract description 5
- 230000005672 electromagnetic field Effects 0.000 claims abstract description 5
- 230000005426 magnetic field effect Effects 0.000 claims abstract description 5
- 230000001360 synchronised effect Effects 0.000 claims abstract description 5
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000004804 winding Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/02—Details of stopping control
- H02P3/04—Means for stopping or slowing by a separate brake, e.g. friction brake or eddy-current brake
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a power-off brake of a wheelchair motor, which comprises a motor, a rotating disc provided with a clamping groove, an adjusting screw, a sleeve, a brake rod, an electromagnet and a spring, wherein the rotating disc is provided with a clamping groove; the rotating disc is fixed on the motor shaft and always keeps synchronous motion with the motor; the rotating disc is internally provided with a bearing piece, and the brake rod is fixedly connected with the inner ring of the bearing piece after penetrating out from one end of the sleeve; the other end of the brake rod is connected with an electromagnet, the electromagnet abuts against a spring, and the spring can adjust the pressing force by an adjusting screw screwed on the other end of the sleeve; the electromagnet and the brake rod can slide along the x axis in the sleeve; when the electromagnet is electrified, the spring is compressed backwards under the action of an electromagnetic field, the bearing piece is kept at the center of the rotating disc, and the motor runs; when the power is off, the magnetic field effect of the electromagnet disappears, the spring releases the compression force, and the magnet pushes the brake rod to drive the bearing piece to be clamped into any clamping groove of the rotating disc, so that the rotating disc stops rotating, and the motor stops. The invention can reduce the power consumption of the braking motor, save electric energy and reduce cost.
Description
Technical Field
The invention belongs to the field of wheelchair braking, and particularly relates to a power-off brake of a wheelchair motor.
Background
Existing brake motors typically include a housing assembly, an electrode spindle extending outwardly within the housing assembly, a stator frame, a rotor frame, etc., secured within the housing assembly. The motor winding is arranged on the stator frame, meanwhile, the magnet is arranged on the rotor frame, and the power is output through the matching of the magnet and the motor winding to drive the rotor frame to rotate, so that the motor spindle is driven to rotate, and the power output is realized. In order to realize the instant and accurate braking of the braking motor, an electromagnetic brake is usually arranged at the tail part of the braking motor, when a motor winding is electrified, the electromagnetic brake is electrified and attracted, and the motor is not braked at the moment and normally rotates to output power; when the motor winding is powered off, the electromagnetic brake is powered off, and the brake pad is pushed to brake under the action of the spring. The existing wheelchair brake mainly uses a spring to compress a friction plate to lock a rotor, so that a motor is braked. This approach has the disadvantage of: the brake pads wear out and consume much power.
Disclosure of Invention
The invention aims to: the invention aims to solve the problems of high power consumption and serious abrasion of the existing wheelchair friction braking mode, and provides a novel wheelchair motor power-off brake.
The technical scheme is as follows: a power-off brake of a wheelchair motor comprises a motor, a rotating disc provided with a clamping groove, an adjusting screw, a sleeve, a braking rod, an electromagnet and a spring, wherein the braking rod, the electromagnet and the spring are arranged in the sleeve; the rotating disc is fixed on the motor shaft and always keeps synchronous motion with the motor; the rotating disc is internally provided with a bearing piece, and the brake rod is fixedly connected with the inner ring of the bearing piece after penetrating out from one end of the sleeve; the other end of the brake rod is connected with an electromagnet, the electromagnet abuts against a spring, and the spring can adjust the pressing force by an adjusting screw screwed on the other end of the sleeve; the electromagnet and the brake rod can slide along the x axis in the sleeve; when the motor is electrified, the electromagnet compresses the spring backwards under the action of an electromagnetic field, the electromagnet drives the brake rod to keep the bearing piece at the center of the rotating disc, and the motor runs; when the power is off, the magnetic field effect of the electromagnet disappears, the spring releases the compression force, the electromagnet pushes the electromagnet forwards, the electromagnet pushes the brake rod to drive the bearing piece to be clamped into any clamping groove of the rotating disc, the rotating disc stops rotating, and the motor stops.
Further, the motor further comprises a supporting block and a supporting bottom plate, the sleeve is supported on the supporting bottom plate through the supporting block, and the supporting bottom plate is fixed on the motor.
Further, the number of the supporting blocks is two, and the two supporting blocks are respectively fixed with the electromagnet and the sleeve outside the spring.
Further, the sleeve is fixed on the supporting block through a screw.
Further, the supporting bottom plate is fixed on the motor through screws.
Further, the rotating disc is fixed on the motor shaft through a screw.
The beneficial effects are that: compared with the prior art, the invention can greatly reduce the power consumption of the brake motor, save electric energy, reduce cost, and has small abrasion and long service life.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic illustration of the present invention;
FIG. 3 is a schematic view of the present invention in a state in which the motor is operating;
fig. 4 is a schematic view of the state of the invention at the time of motor braking.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the attached drawings;
as shown in fig. 1-4, a power-off brake of a wheelchair motor comprises a motor 1, a rotating disk 2, a bearing piece 3, a brake rod 4, a sleeve 5, an electromagnet 6, a spring 7, an adjusting screw 8, a supporting block 9 and a supporting bottom plate 10, clamping grooves are formed in the periphery of the rotating disk 2, and the brake rod 4, the electromagnet 6 and the spring 7 are arranged in the sleeve 5. The rotary disk 2 is fixed on the motor shaft and always keeps synchronous motion with the motor; the rotating disc 2 is internally provided with a bearing part 3, and a brake rod 4 penetrates out from one end of the sleeve 5 and is fixedly connected with the inner ring of the bearing part 3; the other end of the brake rod 4 is connected with an electromagnet 6, the electromagnet 6 abuts against a spring 7, and the spring 7 can adjust the pressing force by an adjusting screw 8 screwed at the other end of the sleeve 5; the electromagnet 6 and the brake lever 4 can slide along the x axis in the sleeve 5; when the electric motor is electrified, the electromagnet 6 compresses the spring 7 backwards under the action of an electromagnetic field, the electromagnet 6 drives the brake rod 4 to keep the bearing part 3 at the center of the rotating disc 2, and the motor runs; when the power is off, the magnetic field effect of the electromagnet 6 disappears, the spring 7 releases the compression force to push the electromagnet 6 forwards, the electromagnet 6 pushes the brake rod 4 to drive the bearing piece 3 to be clamped into any clamping groove of the rotating disc 2, the rotating disc 2 stops rotating, and the motor stops.
In the embodiment, the rotating disc 2 is fixed on a motor shaft through a screw and always keeps synchronous motion with the motor; the inner ring of the bearing part 3 is fixedly connected with the brake rod 4 and can slide along the x axis in the sleeve 5; the electromagnet 6 is abutted against the spring 7 and can slide along the x axis in the sleeve 5; the adjusting screw 8 is screwed at the extreme end of the sleeve 5 through threads, compresses the spring 7, and according to different pretightening force requirements, the screwing-in lengths of the adjusting screws are different; the electromagnet 6 and the sleeve 5 outside the spring 7 are fixed on the supporting bottom plate 10 through two supporting blocks 9 by using screws; the support base plate 10 is fixed to the motor 1 by screws.
As shown in fig. 3, when the coil is energized, the electromagnet 6 compresses the spring 7 backward under the action of the electromagnetic field, and the restoring force of the spring 7 keeps balance, the bearing member 3 is hung on the front end of the brake lever 4 and is positioned in the center of the rotating disc 2, and the motor operates normally.
As shown in fig. 4, when the coil is de-energized, the magnetic field effect disappears, the spring 7 releases the compression force, and pushes the electromagnet 6 and the brake lever 4 forward, driving the bearing member 4 to be clamped into any clamping groove of the rotating disc 2, so that the rotating disc 2 stops rotating, and the motor stops.
Compared with a transmission braking mode, the invention has the advantages of small abrasion and long service life, greatly reduces the power consumption of the braking motor, saves electric energy and reduces the cost.
Claims (6)
1. The power-off brake of the wheelchair motor is characterized by comprising a motor, a rotating disc provided with a clamping groove, an adjusting screw, a sleeve, a braking rod, an electromagnet and a spring, wherein the braking rod, the electromagnet and the spring are arranged in the sleeve; the rotating disc is fixed on the motor shaft and always keeps synchronous motion with the motor; the rotating disc is internally provided with a bearing piece, and the brake rod is fixedly connected with the inner ring of the bearing piece after penetrating out from one end of the sleeve; the rotary disk is hollow, the inner side surfaces of the hollow parts are arc-shaped surfaces, and the bearing piece moves in the plane of the rotary disk; the other end of the brake rod is connected with an electromagnet, the electromagnet abuts against a spring, and the spring can adjust the pressing force by an adjusting screw screwed on the other end of the sleeve; the electromagnet and the brake rod can slide along the x axis in the sleeve; when the motor is electrified, the electromagnet compresses the spring backwards under the action of an electromagnetic field, the electromagnet drives the brake rod to keep the bearing piece at the center of the rotating disc, and the motor runs; when the power is off, the magnetic field effect of the electromagnet disappears, the spring releases the compression force, the electromagnet pushes the electromagnet forwards, the electromagnet pushes the brake rod to drive the bearing piece to be clamped into any clamping groove of the rotating disc, the rotating disc stops rotating, and the motor stops.
2. The wheelchair motor power-off brake of claim 1 further comprising a support block and a support base plate, the sleeve being supported on the support base plate by the support block, the support base plate being secured to the motor.
3. The wheelchair motor power-off brake of claim 2, wherein the support block is two and is fixed with the electromagnet and a sleeve outside the spring.
4. A wheelchair motor disconnect brake as claimed in claim 2 or claim 3, in which the sleeve is secured to the support block by screws.
5. A wheelchair motor disconnect brake as claimed in claim 2 or claim 3 wherein the support base plate is secured to the motor by screws.
6. The wheelchair motor power-off brake of claim 1 wherein the rotating disk is secured to the motor shaft by screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710323874.4A CN106921314B (en) | 2017-05-10 | 2017-05-10 | Brake for power-off of wheelchair motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710323874.4A CN106921314B (en) | 2017-05-10 | 2017-05-10 | Brake for power-off of wheelchair motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106921314A CN106921314A (en) | 2017-07-04 |
| CN106921314B true CN106921314B (en) | 2023-12-08 |
Family
ID=59568054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710323874.4A Active CN106921314B (en) | 2017-05-10 | 2017-05-10 | Brake for power-off of wheelchair motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106921314B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190120311A1 (en) * | 2017-10-20 | 2019-04-25 | Akebono Brake Industry Co., Ltd | High efficiency multi-piston actuation assembly |
| CN107994839B (en) * | 2017-12-25 | 2020-10-13 | 厦门市逢兴机电设备有限公司 | Motor safety control circuit and motor safety control system |
| CN108634911B (en) * | 2018-04-26 | 2019-11-19 | 安徽圣洁家居有限公司 | Vamp rainwater removal device based on centrifugal force and inertia |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710066A (en) * | 2012-05-18 | 2012-10-03 | 横店集团联宜电机有限公司 | Tubular motor |
| CN106026511A (en) * | 2016-06-27 | 2016-10-12 | 泰州市姜堰德力电机有限公司 | Lever brake type motor |
| CN206727909U (en) * | 2017-05-10 | 2017-12-08 | 南京康尼机电股份有限公司 | Wheel chair motor power-off braker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7612477B2 (en) * | 2005-04-22 | 2009-11-03 | Harmonic Drive Systems Inc. | Electromagnetic brake device for small-sized motor |
-
2017
- 2017-05-10 CN CN201710323874.4A patent/CN106921314B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710066A (en) * | 2012-05-18 | 2012-10-03 | 横店集团联宜电机有限公司 | Tubular motor |
| CN106026511A (en) * | 2016-06-27 | 2016-10-12 | 泰州市姜堰德力电机有限公司 | Lever brake type motor |
| CN206727909U (en) * | 2017-05-10 | 2017-12-08 | 南京康尼机电股份有限公司 | Wheel chair motor power-off braker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106921314A (en) | 2017-07-04 |
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