CN112781776A - Motor brake protection method and device and motor - Google Patents
Motor brake protection method and device and motor Download PDFInfo
- Publication number
- CN112781776A CN112781776A CN202011471263.2A CN202011471263A CN112781776A CN 112781776 A CN112781776 A CN 112781776A CN 202011471263 A CN202011471263 A CN 202011471263A CN 112781776 A CN112781776 A CN 112781776A
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- China
- Prior art keywords
- brake
- motor
- pressure value
- protection method
- encoder
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/28—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for testing brakes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
Abstract
The present disclosure provides a motor braking protection method, including: detecting a pressure value of a brake of the motor; judging the running state of the brake according to the pressure value of the brake; and if the pressure value is abnormal, controlling the motor to stop running. According to the motor brake protection method, the running state of the motor brake system can be fed back to the encoder through the pressure sensor, the encoder receives and processes signals from the pressure sensor, the driver is communicated with the encoder, and the running of the motor brake system can be controlled according to the received encoder signals. When the value of the pressure sensor is abnormal, the driver controls the motor to stop running, so that the condition that the motor is abnormally stopped due to abnormal work of a motor braking system is prevented, and the life cycle and the competitiveness of a servo product are improved.
Description
Technical Field
The disclosure belongs to the technical field of motors, and particularly relates to a motor brake protection method, a motor brake protection device and a motor.
Background
The motor is an electromagnetic device for realizing electric energy conversion or transmission according to the electromagnetic induction law, and is mainly used as a power source of various machines. Currently, our electric machines mainly use electromagnetic brakes to realize braking.
The motor using the electromagnetic brake causes abnormal failure of braking of the whole motor due to abnormality of the brake, thereby affecting the operation characteristics and control accuracy of the whole motor.
Disclosure of Invention
Therefore, the technical problem to be solved by the present disclosure is that a brake of a motor fails due to an abnormal brake, and the operation characteristics and control accuracy of the whole motor are affected, thereby providing a motor brake protection method, a protection device and a motor.
In order to solve the above problem, the present disclosure provides a motor braking protection method, including:
detecting a pressure value of a brake of the motor;
judging the running state of the brake according to the pressure value of the brake;
and if the pressure value is abnormal, controlling the motor to stop running.
The purpose of the present disclosure and the technical problems solved thereby can be further achieved by the following technical measures.
In some embodiments, the step of detecting a pressure value of the brake of the motor comprises: the pressure value of the brake of the motor is detected by a pressure sensor arranged inside the motor.
In some embodiments, the brake includes an armature, a stator, and the step of detecting a pressure value of the brake of the motor includes: and detecting a pressure value between the armature and the stator.
In some embodiments, an elastic member is disposed between the stator and the armature, a pressure sensor is disposed on the elastic member, and the step of detecting the pressure value of the brake of the motor includes: the pressure sensor is used for detecting the pressure value applied to the elastic element.
In some embodiments, the step of determining the operation state of the brake according to the pressure value of the brake includes: and feeding the pressure value back to the encoder, and processing the signal by the encoder and outputting alarm information.
In some embodiments, the alert information includes: the brake works normally, the brake needs to be overhauled, and the brake is damaged.
In some embodiments, the step of determining the operating state of the brake according to the pressure value of the brake further comprises: and if the pressure value is not abnormal, controlling the motor to normally operate.
In some embodiments, the motor braking protection method further comprises:
the encoder feeds the alarm information back to the driver, and the driver responds and processes.
In some embodiments, the response processing includes: normally controlling the motor to run, controlling the motor to be at a low speed, prompting that the brake needs to be overhauled, controlling the motor to stop and prompting that the brake is damaged.
A protection device adopts the motor braking protection method.
The purpose of the present disclosure and the technical problems solved thereby can be further achieved by the following technical measures.
In some embodiments, the brake comprises an armature and a stator, wherein an elastic part is arranged between the armature and the stator, and a pressure sensor is arranged on the elastic part.
A motor adopts the motor braking protection method.
The motor braking protection method and the motor provided by the disclosure have the following beneficial effects:
according to the motor brake protection method, the running state of the motor brake system can be fed back to the encoder through the pressure sensor, the encoder receives and processes signals from the pressure sensor, the driver is communicated with the encoder, and the running of the motor brake system can be controlled according to the received encoder signals. When the value of the pressure sensor is abnormal, the driver controls the motor to stop running, so that the condition that the motor is abnormally stopped due to abnormal work of a motor braking system is prevented, and the life cycle and the competitiveness of a servo product are improved.
Drawings
Fig. 1 is a schematic structural diagram of a motor brake protection device according to an embodiment of the disclosure;
FIG. 2 is a schematic diagram illustrating motor brake protection signal transmission according to an embodiment of the present disclosure;
FIG. 3 is an encoder signal processing look-up table according to an embodiment of the present disclosure;
FIG. 4 is a driver response handling look-up table of an embodiment of the present disclosure;
fig. 5 is a graph of the operating speed of the motor versus the pressure value of the pressure sensor according to an embodiment of the disclosure.
The reference numerals are represented as:
1. a pressure sensor; 2. a stator; 3. an armature; 4. an elastic member.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, the following embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings. It is to be understood that the described embodiments are merely a subset of the disclosed embodiments and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
Referring to fig. 1 to 5, the present embodiment provides a motor braking protection method, including:
s1 detects a pressure value of the brake of the motor.
The pressure value of the brake reflects the real-time state of the brake, and the real-time state of the brake can be known by detecting the pressure value of the brake, whether the brake normally operates or not, whether the brake needs to be overhauled or not and the like. Compared with the traditional motor, the method has important significance for improving the control precision of motor braking by knowing the real-time state of the brake.
The step of S101 detecting the pressure value of the brake of the motor comprises the following steps: the pressure value of the brake of the motor is detected by a pressure sensor 1 provided inside the motor.
The stopper is as a part of motor, sets up pressure sensor 1 in the inside of motor, can in time obtain the pressure value of stopper, and it is higher to detect the precision.
In some embodiments, the brake comprises an armature 3, a stator 2, and the step of detecting the pressure value of the brake of the electric machine comprises: the pressure value between the armature 3 and the stator 2 is detected.
The armature 3 and the stator 2 are parts for reflecting the stress of the brake in the brake, and the stress condition of the brake can be obtained by detecting the quality detection pressure of the armature 3 and the stator 2.
In some embodiments, an elastic member 4 is disposed between the stator 2 and the armature 3, a pressure sensor 1 is disposed on the elastic member 4, and the step of detecting the pressure value of the brake of the motor includes: the pressure value applied to the elastic member 4 is detected by the pressure sensor 1.
The pressure sensor 1 is placed at the bottom of the elastic part 4, when the brake works, the elastic part 4 is stressed, the pressure borne by the pressure sensor 1 is generated by the elastic part 4, the direction is determined according to the extension and contraction of the elastic part 4, and the real-time state of the brake can be known according to the pressure value output by the pressure sensor 1.
S2 judges the operating state of the brake based on the pressure value of the brake.
The pressure value output by the pressure sensor 1 can reflect the operation state of the brake, thereby facilitating the control of the operation of the motor according to the state of the brake.
The step S201 of judging the running state of the brake according to the pressure value of the brake comprises the following steps: and feeding the pressure value back to the encoder, and processing the signal by the encoder and outputting alarm information. Under different working conditions of the motor, the pressure sensor 1 can output different pressure values to be fed back to the encoder.
The alert information includes, but is not limited to: the brake works normally, the brake needs to be overhauled, and the brake is damaged.
When the pressure value of the pressure sensor 1 is H, the alarm information reported by the encoder alarm system is that the brake is normal, and the alarm position prompt parameter is 001; when the pressure value of the pressure sensor 1 is M, the alarm information reported by the encoder alarm system indicates that the brake needs to be overhauled, and the alarm position prompt parameter is 002; when the pressure value of the pressure sensor is L, the alarm information reported by the encoder alarm system is that the brake is damaged, and the alarm position prompt parameter is 003. Wherein H > M > L > 0.
S3, if the pressure value is not abnormal, controlling the motor to normally operate; and if the pressure value is abnormal, controlling the motor to stop running.
When the pressure value is abnormal, the running state of the brake is poor, measures need to be taken at the moment, the brake protection mode is started, the running characteristic of the motor is prevented from being reduced, and the control precision is prevented from being reduced.
S301, if the pressure value is abnormal, controlling the motor to stop running; if the pressure value is not abnormal, the step of controlling the motor to normally operate comprises the following steps: the encoder feeds the alarm information back to the driver, and the driver responds and processes.
Response processing includes, but is not limited to: normally controlling the motor to run, controlling the motor to be at a low speed, prompting that the brake needs to be overhauled, controlling the motor to stop and prompting that the brake is damaged.
When the encoder gives an alarm to prompt the position 001, the driver controls the motor to normally operate; when the encoder gives an alarm to prompt the bit 002, the driver controls the motor to run at a low speed and prompts the brake to need maintenance and alarm; when the encoder alarms and prompts the bit to prompt 003, the driver controls the motor to stop and prompts that the brake is damaged.
When the motor normally runs and the pressure value of the pressure sensor 1 is H, the driver controls the current of the motor to be unchanged, and the motor keeps normally running; when the pressure value of the pressure sensor 1 is M, the driver controls the current of the motor to be reduced, the motor runs at a low speed, and the driver reports the need of maintenance and alarm; when the pressure value of the pressure sensor 1 is L, the driver controls the current of the motor to be 0, the motor stops running, and the driver reports that the brake is damaged and gives an alarm. Wherein H > M > L > 0.
According to the motor brake protection method, the running state of the motor brake system can be fed back to the encoder through the pressure sensor 1, the encoder receives and processes signals from the pressure sensor 1, the driver is communicated with the encoder, and the running of the motor brake system can be controlled according to the received encoder signals. When the value of the pressure sensor 1 is abnormal, the driver controls the motor to stop running, so that the condition that the motor is abnormally stopped due to abnormal work of a motor braking system is prevented, and the life cycle and the competitiveness of a servo product are improved.
The embodiment also provides a protection device, and the motor braking protection method is adopted.
In some embodiments, the brake is included, the brake includes an armature 3 and a stator 2, an elastic member 4 is arranged between the armature 3 and the stator 2, and the pressure sensor 1 is arranged on the elastic member 4. The pressure sensor 1 can be fixed by screws or by gluing, without limitation to the mounting method.
A motor adopts the motor braking protection method.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present disclosure is to be considered as limited only by the preferred embodiments and not limited to the specific embodiments described herein, and all changes, equivalents and modifications that come within the spirit and scope of the disclosure are desired to be protected. The foregoing is only a preferred embodiment of the present disclosure, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present disclosure, and these improvements and modifications should also be considered as the protection scope of the present disclosure.
Claims (12)
1. A motor braking protection method, comprising:
detecting a pressure value of a brake of the motor;
judging the running state of the brake according to the pressure value of the brake;
and if the pressure value is abnormal, controlling the motor to stop running.
2. The motor brake protection method of claim 1, wherein the step of detecting a pressure value of a brake of the motor comprises: the pressure value of the brake of the motor is detected by a pressure sensor arranged inside the motor.
3. The motor brake protection method according to claim 2, wherein the brake comprises an armature and a stator, and the step of detecting the pressure value of the brake of the motor comprises the steps of: detecting a pressure value between the armature and the stator.
4. The motor brake protection method according to claim 3, wherein an elastic member is disposed between the stator and the armature, a pressure sensor is disposed on the elastic member, and the step of detecting the pressure value of the brake of the motor includes: and detecting the pressure value applied to the elastic piece through the pressure sensor.
5. The motor brake protection method according to claim 1, wherein the step of determining the operation state of the brake according to the pressure value of the brake comprises: and feeding the pressure value back to the encoder, and processing the signal by the encoder and outputting alarm information.
6. The motor brake protection method of claim 5, wherein the warning information includes: the brake works normally, the brake needs to be overhauled, and the brake is damaged.
7. The motor brake protection method according to claim 5, wherein the step of determining the operation state of the brake according to the pressure value of the brake further comprises the following steps: and if the pressure value is not abnormal, controlling the motor to normally operate.
8. The motor brake protection method of claim 7, further comprising:
the encoder feeds the alarm information back to the driver, and the driver responds and processes.
9. The motor brake protection method of claim 8, wherein the response process comprises: normally controlling the motor to run, controlling the motor to be at a low speed, prompting that the brake needs to be overhauled, controlling the motor to stop and prompting that the brake is damaged.
10. A protection device, characterized in that a motor brake protection method according to any one of claims 1-9 is used.
11. The protection device of claim 10, comprising a brake, wherein the brake comprises an armature and a stator, an elastic member is arranged between the armature and the stator, and a pressure sensor is arranged on the elastic member.
12. An electric machine, characterized in that a method of brake protection of an electric machine according to any of claims 1-9 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011471263.2A CN112781776A (en) | 2020-12-14 | 2020-12-14 | Motor brake protection method and device and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011471263.2A CN112781776A (en) | 2020-12-14 | 2020-12-14 | Motor brake protection method and device and motor |
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| Publication Number | Publication Date |
|---|---|
| CN112781776A true CN112781776A (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011471263.2A Pending CN112781776A (en) | 2020-12-14 | 2020-12-14 | Motor brake protection method and device and motor |
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| CN (1) | CN112781776A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4538228A (en) * | 1982-02-18 | 1985-08-27 | Knorr-Bremse Gmbh | Hydraulic pressure actuated brake system for rail vehicles |
| CN102606654A (en) * | 2012-03-27 | 2012-07-25 | 天津永恒泰科技有限公司 | Electromagnetic brake with buffer for noise reduction |
| CN204239574U (en) * | 2014-11-25 | 2015-04-01 | 河北钢铁股份有限公司承德分公司 | A kind of lifting mechanism brake pressure and brake rubber block wearing and tearing exceed standard monitoring alarm device |
| CN106394540A (en) * | 2016-11-28 | 2017-02-15 | 中环天仪股份有限公司 | Intelligent brake boosting control system and method of electric vehicle |
| CN206017508U (en) * | 2016-08-28 | 2017-03-15 | 宁波申泽机电有限公司 | A kind of improved disk brake and disk brake accident warning device |
| CN109424678A (en) * | 2017-08-25 | 2019-03-05 | 宝山钢铁股份有限公司 | A kind of electromagnetic brake |
| CN111623062A (en) * | 2020-06-30 | 2020-09-04 | 江西工创科技协同创新有限公司 | Electromagnet for electromagnetic brake |
-
2020
- 2020-12-14 CN CN202011471263.2A patent/CN112781776A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4538228A (en) * | 1982-02-18 | 1985-08-27 | Knorr-Bremse Gmbh | Hydraulic pressure actuated brake system for rail vehicles |
| CN102606654A (en) * | 2012-03-27 | 2012-07-25 | 天津永恒泰科技有限公司 | Electromagnetic brake with buffer for noise reduction |
| CN204239574U (en) * | 2014-11-25 | 2015-04-01 | 河北钢铁股份有限公司承德分公司 | A kind of lifting mechanism brake pressure and brake rubber block wearing and tearing exceed standard monitoring alarm device |
| CN206017508U (en) * | 2016-08-28 | 2017-03-15 | 宁波申泽机电有限公司 | A kind of improved disk brake and disk brake accident warning device |
| CN106394540A (en) * | 2016-11-28 | 2017-02-15 | 中环天仪股份有限公司 | Intelligent brake boosting control system and method of electric vehicle |
| CN109424678A (en) * | 2017-08-25 | 2019-03-05 | 宝山钢铁股份有限公司 | A kind of electromagnetic brake |
| CN111623062A (en) * | 2020-06-30 | 2020-09-04 | 江西工创科技协同创新有限公司 | Electromagnet for electromagnetic brake |
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