CN217718022U - Motor fault simulation platform - Google Patents
Motor fault simulation platform Download PDFInfo
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- CN217718022U CN217718022U CN202220515839.9U CN202220515839U CN217718022U CN 217718022 U CN217718022 U CN 217718022U CN 202220515839 U CN202220515839 U CN 202220515839U CN 217718022 U CN217718022 U CN 217718022U
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Abstract
The utility model discloses a motor fault simulation platform, which comprises a power transmission line, a motor module, a mechanical fault monitoring module, an electrical fault simulation module and a signal collection module; the power transmission line is provided with a power supply end connected with an external power supply and a power utilization end connected with the motor module; the motor module comprises a plurality of fault motors for testing and at least one normal motor; the mechanical fault monitoring module is matched with one of the fault motors or one of the normal motors, and transmits motor operation parameters with the signal collecting module; the electric fault simulation module is arranged at the power utilization end side of the power transmission line; the signal collection module is disposed on the power supply end side of the power transmission line. The utility model discloses can simulate and gather the electrical parameter and the mechanical parameter of motor.
Description
Technical Field
The utility model relates to an electrical technology field, concretely relates to motor fault simulation platform.
Background
In the current society, along with the development of electrification, various electric appliances fill the aspects of life and production, in order to ensure the normal work of the electric appliances, accurately analyze and judge the faults of the electric appliances in the using process and correctly deal with the faults, and particularly, if the faults of the electric appliances in industrial occasions such as production and the like occur in the operation, serious loss can be caused, so that the electric appliances need to be regularly checked. However, in the current inspection process of the electric appliance, the health state of the electric appliance cannot be deeply evaluated, such as detection of motor faults, although various existing inspection equipment on the market supports fault diagnosis of the motor in the inspection process, the diagnosis depth is intelligently stopped in simple faults such as undercurrent, overvoltage and locked rotor which may occur to the motor, and the possibility of other various faults which may occur to the motor cannot be overcome.
In order to accurately diagnose the motor, various faults of the motor need to be simulated, the simulated data are collected and processed in a variable control mode, various characteristics about the motor faults are summarized, and various fault data are matched with the running motor in inspection, so that various abnormalities of the motor can be found in time.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a motor fault simulation platform can simulate and gather the electrical parameter and the mechanical parameter of motor.
The utility model adopts the technical scheme as follows:
a motor fault simulation platform comprises a power transmission line, a motor module, a mechanical fault monitoring module, an electrical fault simulation module and a signal collection module;
the power transmission line is provided with a power supply end connected with external power supply and a power utilization end connected with the motor module; the motor module comprises a plurality of fault motors for testing and at least one normal motor; the mechanical fault monitoring module is matched with one of the fault motors or one of the normal motors, and motor operation parameters are transmitted between the mechanical fault monitoring module and the signal collecting module; the electric fault simulation module is arranged at the power utilization end side of the power transmission line; the signal collection module is arranged on the power supply end side of the power transmission line.
Further, the motor operating parameter comprises at least one of a vibration parameter, a temperature parameter and a humidity parameter; the mechanical fault monitoring module comprises a vibration speed sensor and a vibration acceleration sensor which are used for measuring the vibration parameters, and further comprises a temperature sensor and a humidity sensor, wherein the temperature sensor is used for measuring the temperature parameters, and the humidity sensor is used for measuring the humidity parameters.
Further, the electrical fault simulation module comprises a breaking assembly capable of breaking the transmission line, a short-circuiting assembly capable of short-circuiting two adjacent transmission lines, and a grounding assembly capable of grounding the transmission line.
Further, the short-circuit assembly comprises at least one first switching element and at least one first driving module for driving the first switching element; the first switching element is connected in series between two adjacent live wires and used for realizing short circuit of the two live wires, and the first driving module is arranged between any live wire and a zero line;
the circuit breaking assembly comprises at least one second switch piece and at least one second driving module used for driving the second switch piece, the second switch piece is connected in series on any live wire and used for achieving on-off of the live wire, and the second driving module is arranged between any live wire and the zero wire.
Further, the grounding assembly comprises a third switch element, a resistance element and a current sensor, the resistance element and the third switch element are connected between any live wire and zero wire in series, a measuring end of the current sensor is used for obtaining a current value flowing through the resistance element, and a data transmission end of the current sensor is used for transmitting the current value to the signal collection module.
Furthermore, the electric fault simulation module further comprises a master control module, the master control module comprises a fourth switch, and the fourth switch is respectively connected with the circuit breaking assembly, the short circuit assembly and the grounding assembly in series and is arranged between any live wire and a zero line.
Further, the signal collection module comprises a sensor module and a data processor;
the measuring end of the sensor module is matched with the power transmission line and used for measuring a first operating parameter of the power transmission line, and data transmission is carried out between the data transmission end of the sensor module and the data processor, so that the data processor obtains the first operating parameter of the power transmission line; the first operating parameter comprises a current, a voltage, and a residual current of the transmission line;
and the mechanical fault monitoring module and the data processor are in data transmission, so that the data processor obtains the motor operating parameters.
Further, the sensor module comprises a current transformer, a residual current transformer and a voltage transformer which are respectively arranged on the power transmission line.
Further, the signal collection module further comprises a contactor, a disconnecting switch and a circuit breaker; and along the direction from the power supply end to the power utilization end of the power transmission line, the isolating switch, the circuit breaker and the contactor are sequentially connected in series on the power transmission line.
Furthermore, a surge protector is arranged on the power transmission line and electrically connected with the data processor; the surge protector is connected with the isolating switch in parallel.
Has the advantages that:
the utility model provides a signal collection module is used for distribution, monitoring, the protection of motor, through collection, diagnosis, analysis, storage and the transmission to motor operating parameter, realizes motor failure's early warning.
The electric fault simulation module can simulate various electric faults of the motor and can realize the reproduction of the fault characteristics of the motor so as to obtain valuable data under the same operating state condition. The power transmission line in the scheme is used for supplying power to the motor. The electric fault simulation module is matched with the power transmission line to realize various circuit faults, and the power transmission line can be equivalent to an internal circuit of the motor, so that the electric faults generated by the electric fault simulation module can be equivalent to various electric faults generated in the motor.
The utility model provides a fault motor and normal motor are the equipment of same model, and every fault motor has known various mechanical failure. When various parameters of the fault motor are collected, the fault motors are sequentially operated, the mechanical fault monitoring module transmits the motor operation parameters to the signal collecting module, and the signal collecting module collects and processes the motor operation parameters transmitted by the mechanical fault monitoring module and various electrical faults generated by the electrical fault simulation module. Because the specific fault of the current fault motor is known, during monitoring, the operation parameters corresponding to the specific fault can be respectively collected, the operation parameters are compared with the operation parameters of the normal motor, and the corresponding relation between the specific parameters and the specific fault is obtained through machine learning. When the learning result is applied to fault elimination detection of a corresponding motor of the same type, the running state, abnormal running and fault type of the motor at the moment are deduced by detecting various running parameters of the motor during running.
Drawings
Fig. 1 is an overall schematic diagram provided in an embodiment of the present invention;
fig. 2 is a partial schematic view of a signal collection module according to an embodiment of the present invention;
fig. 3 is a partial schematic view of an electrical fault simulation module according to an embodiment of the present invention.
The system comprises a signal collection module, a 2-power transmission line, a 3-electrical fault simulation module, a 4-mechanical fault monitoring module, a 5-motor module, a 6-external power supply, a 7-residual current transformer, an 8-isolating switch, a 9-voltage transformer, a 10-circuit breaker, an 11-current transformer, a 12-contactor, a 13-cloud processor, a 14-center collector, a 15-data processor, a 16-surge protector, a 17-vibration speed sensor, an 18-vibration acceleration sensor, a 19-temperature sensor, a 20-live wire, a 21-zero wire, a 22-fourth switch, a 23-total control module, a 24-second drive module, a 25-circuit breaking component, a 26-resistor, a 27-third switch, a 28-grounding component, a 29-current sensor, a 30-first drive module, a 31-short circuit component, a 32-first switch, a 33-fifth drive module, a 34-phase-failure component, a 35-fifth switch and a 36-second switch.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of examples.
The utility model provides a motor fault simulation platform, as shown in figure 1, including power transmission line 2, motor module 5, mechanical failure monitoring module 4, electric fault simulation module 3 and signal collection module 1.
The transmission line 2 has a power supply terminal connected to an external power supply 6 and a power utilization terminal connected to the motor module 5; the motor module 5 comprises a plurality of fault motors for testing and at least one normal motor; the mechanical fault monitoring module 4 is matched with one of a plurality of fault motors or one of normal motors, and transmits motor operation parameters with the signal collecting module 1; the electric fault simulation module 3 is arranged at the power utilization end side of the power transmission line 2; the signal collection module 1 is provided on the power supply end side of the power transmission line 2.
The signal collection module 1 is used for power distribution, monitoring and protection of the motor, and early warning of motor faults is realized by collecting, diagnosing, analyzing, storing and transmitting motor operating parameters.
The fault motor and the normal motor are the same type of equipment, and each fault motor has various known mechanical faults. When collecting each parameter of trouble motor, with each trouble motor operation in proper order, mechanical fault monitoring module 4 transmits the motor operation parameter to signal collection module 1, and signal collection module 1 collects and handles these parameters. Because the specific fault of the current fault motor is known, during monitoring, the operation parameters corresponding to the specific fault can be respectively collected, the operation parameters are compared with the operation parameters of the normal motor, and the corresponding relation between the specific parameters and the specific fault is obtained through machine learning. When the learning result is applied to fault elimination detection of a corresponding motor of the same type, the running state, abnormal running and fault type of the motor at the moment are deduced by detecting various running parameters of the motor during running.
The motor with the faults comprises a plurality of fault motors, a plurality of motors with the faults, a plurality of dragger motors, and the like, and further comprises abnormal operation caused by various environments, wherein each fault motor has one mechanical fault, and one motor is a normal motor and is used for testing the abnormal operation caused by the environments, such as overheating caused by poor ventilation of the normal motor or overhigh environment humidity, frequent starting or excessive forward and reverse rotation times, and loosening of combination between an iron core and a base. When mechanical failure monitoring is carried out, all failure motors and normal motors are sequentially matched with the installation position, the mechanical failure monitoring module 4 is matched with the current motor, and the motor is started, so that all motor operation parameters, such as vibration parameters, temperature and humidity parameters and the like, of the motor in the operation process are obtained.
The electric fault simulation module 3 can simulate various electric faults of the motor and can realize the reproduction of the fault characteristics of the motor so as to obtain valuable data under the same operating state condition. The transmission line 2 in this embodiment comprises three live wires 20 and one neutral wire 21, which cooperate for supplying a three-phase alternating current motor. Therefore, the electric fault simulation module 3 is matched with the live wire 20 and the zero wire 21 to realize various circuit faults, and the power transmission line 2 can be equivalent to an internal circuit of the motor, so that the electric faults generated by the electric fault simulation module 3 can be equivalent to various electric faults generated in the motor.
As shown in fig. 3, the electrical fault simulation module 3 comprises a breaking assembly 25 capable of breaking the transmission line 2, a short-circuiting assembly 31 capable of short-circuiting two adjacent transmission lines 2, and a grounding assembly 28 capable of grounding the transmission lines 2.
The electric fault simulation module 3 is connected in series with the live wires 20, the on-off of the live wires 20 is realized through an actuating mechanism (namely a driving module) in the electric fault simulation module 3, and when three live wires 20 are all broken, the electric fault simulation module 3 realizes fault simulation of the broken circuit of the internal circuit of the motor; when only one or two live wires 20 are disconnected, the simulation of the motor open-phase operation fault is realized. One end of the electric fault simulation module 3 is connected with one live wire 20, the other end of the electric fault simulation module 3 is connected with the other adjacent live wire 20, for example A, B, C, the electric fault simulation module 3 is respectively connected between A and B, between A and C or between B and C, when an actuating mechanism in the electric fault simulation module 3 enables a passage to be formed between the two live wires, the electric fault simulation module 3 realizes the simulation of the interphase short-circuit fault of the live wires.
The power supply of the electrical fault simulation module 3 is realized by the cooperation of one of the live wire 20 and the neutral wire 21, and is used for driving the operation of an actuating mechanism of the electrical fault simulation module 3 and transmitting signals.
In an alternative embodiment, the motor operating parameter comprises at least one of a vibration parameter, a temperature parameter, and a humidity parameter; the mechanical failure monitoring module 4 comprises a vibration speed sensor 17 and a vibration acceleration sensor 18 for measuring vibration parameters, a temperature sensor 19 for measuring temperature parameters and a humidity sensor for measuring humidity parameters.
During mechanical fault monitoring, for faults such as eccentric operation of a motor rotor, unbalanced operation of the rotor, broken operation of a rotor bar, bearing fault, clamping of dragging machinery and the like, monitoring of electrical parameters and vibration parameters of a current fault motor is required; when the operation caused by the monitoring environment is abnormal, the temperature parameter of the current normal motor needs to be monitored for the faults such as overheating caused by poor ventilation of the normal motor or overhigh environment humidity, overheating caused by frequent starting or excessive forward and reverse rotation times, and the vibration parameter needs to be monitored for the fault of loose combination between the iron core and the machine base.
In an alternative embodiment, the short-circuit assembly 31 comprises at least one first switching element 32 and at least one first driving module 30 for driving the first switching element 32, the first switching element 32 is connected in series between two adjacent live wires 20 for short-circuiting the two live wires 20, and the first driving module 30 is disposed between any live wire 20 and the neutral wire 21; the breaking assembly 25 comprises at least one second switching element 36 and at least one second driving module 24 for driving the second switching element 36, the second switching element 36 is connected in series to any live wire 20 for switching the live wire 20, and the second driving module 24 is arranged between any live wire 20 and the neutral wire 21.
The second switch element 36 and the second driving module 24 in the circuit breaking assembly 25 form the contactor 12, the three second switch elements 36 are respectively connected in series to the three live wires 20 and are driven by the second driving module 24 in a unified manner, and the second driving module 24 is connected in series between any one of the three live wires 20 and the neutral wire 21 and is used for supplying power to the second driving module 24.
When the second driving module 24 is powered on, the three second switching elements 36 are in a connected state through electromagnetic force, and at the moment, the three live wires 20 are all connected; when the open-circuit fault needs to be simulated, the power supply of the second driving module 24 is disconnected, the acting force of the second driving module 24 on the second switch element 36 disappears, at the moment, the second switch element 36 is reset to the disconnected state under the action of the reset spring, and the three live wires 20 are all disconnected, so that the simulation of the open-circuit fault is realized. The phase-lack assembly 34 comprises a fifth driving module 33 and a fifth switching element 35, the fifth switching element 35 and the fifth driving module 33 form the contactor 12, the fifth switching element 35 is connected in series to one of the three live wires 20, and the fifth driving module 33 is connected in series between any one of the three live wires 20 and the zero wire 21 and used for supplying power to the fifth driving module 33. When the fifth driving module 33 drives the fifth switching element 35 to open one live wire 20, the simulation of the motor open-phase operation fault is realized.
The first switch element 32 and the first driving module 30 in the short-circuit assembly 31 constitute the contactor 12, the first switch element 32 is connected in series between two adjacent live wires 20, and the first driving module 30 is connected in series between any one of the three live wires 20 and the neutral wire 21.
When the first driving module 30 is not powered on, the first switching element 32 is in an off state under the action of the return spring, and at this time, the three live wires 20 are independently powered; when short-circuit faults need to be simulated, the power supply of the first driving module 30 is communicated, the first driving module 30 enables the first switch piece 32 to overcome the elastic force of the return spring to be communicated through electromagnetic force, and the two live wires 20 are communicated, so that the simulation of the short-circuit faults is realized.
In an alternative embodiment, the grounding assembly 28 comprises a third switching element 27, a resistive element 26 and a current sensor 29, the resistive element 26 and the third switching element 27 being connected in series between either the live wire 20 and the neutral wire 21, the measuring terminal of the current sensor 29 being adapted to obtain the value of the current flowing through the resistive element 26, and the data transmission terminal of the current sensor 29 being adapted to transmit the value of the current to the signal collection module 1.
The resistive element 26 is connected in series between the live wire 20 and the neutral wire 21, and the current sensor 29 measures the current of the circuit in which the resistive element 26 is located and outputs a current value signal obtained by monitoring. The circuit of the resistance member 26 is provided with a third switch member 27, the third switch member 27 is in a normally open state, no current passes through the resistance member 26, when the ground fault of the motor winding needs to be simulated, the third switch member 27 is communicated, and the current flows through the circuit of the resistance member 26, so that the simulation of the ground fault of the winding is realized.
In an alternative embodiment, the electrical fault simulation module 3 further includes a general control module 23, the general control module 23 includes a fourth switching element 22, and the fourth switching element 22 is respectively connected in series with the circuit breaking assembly 25, the short circuit assembly 31 and the grounding assembly 28 and is disposed between any live wire 20 and the neutral wire 21.
The output end of the fourth switch 22 is connected with a conductive wire, and the first switch 32, the second switch 36 and the third switch 27 are all electrically connected with the live wire 20 through the conductive wire, so that the master control module 23 can control the short-circuit assembly 31, the disconnection assembly 25 and the grounding assembly 28 to be disconnected.
In an alternative embodiment, as shown in fig. 2, the signal collection module 1 comprises a sensor module and a data processor 15.
The measuring end of the sensor module cooperates with the power transmission line 2 for measuring a first operating parameter of the power transmission line 2, and data transmission between the data transmission end of the sensor module and the data processor 15 is enabled so that the data processor 15 obtains the first operating parameter of the power transmission line 2. The first operating parameters comprise the current, the voltage and the residual current of the transmission line 2.
Data transmission between the mechanical failure monitoring module 4 and the data processor 15 is enabled to enable the data processor 15 to obtain motor operating parameters.
The data processor 15 is a local processor or a cloud processor 13 connected with the local processor through a network; the signal collecting module 1 further comprises a concentrator 14, the concentrator 14 is used for processing and transmitting data, the surge protector 16 is connected with the concentrator 14 through a bus, and the concentrator 14 is connected with the data processor 15 through the bus.
The concentrator 14 is a regional management unit, is a bridge connecting an upper computer, each terminal and a sensor, has functions of managing terminals and digital sensors in a group, has strong calculation, storage and communication capabilities, and can effectively manage a large number of lower-level devices, such as the contactor 12, the circuit breaker 10, the residual current transformer 7, the voltage transformer 9, the current transformer 11, the vibration speed sensor 17, the vibration acceleration sensor 18, the temperature sensor 19 and the like in the embodiment, and the concentrator 14 can summarize information of the above elements and send the information to the data processor 15.
In an alternative embodiment, the sensor module comprises a current transformer 11, a residual current transformer 7 and a voltage transformer 9, each arranged on the transmission line 2.
The current, the voltage and the residual current of the power transmission line 2 are obtained by monitoring the power transmission line 2 through the sensor module, and are specifically measured through a current transformer 11, a residual current transformer 7 and a voltage transformer 9 which are arranged on the power transmission line 2. The power supply end side of the power transmission line 2 is electrically connected with an electrical appliance, and the running state of the electrical appliance can influence the electrical parameters on the power transmission line 2, such as the electrical parameter abnormality of the power transmission line 2 caused by the short circuit, the leakage and other faults of the electrical appliance.
In an alternative embodiment, the signal collection module 1 further comprises a contactor 12, a disconnector 8 and a circuit breaker 10; along the direction from the power supply end to the power utilization end of the power transmission line 2, the disconnecting switch 8, the circuit breaker 10 and the contactor 12 are sequentially arranged on the power transmission line 2 in series.
In an alternative embodiment, the power transmission line 2 is provided with a surge protector 16, and the surge protector 16 is connected with the data processor 15; a surge protector 16 is arranged in parallel with the disconnector 8.
The surge protector 16 is used for conducting and shunting the peak current or voltage suddenly generated on the power transmission line 2 due to external interference, so as to prevent the surge from damaging the electrical components on the power transmission line 2. The surge protector 16 in this embodiment is provided between the disconnecting switch 8 and the power supply end of the power transmission line 2, and the surge protector 16 and the disconnecting switch 8 are connected in parallel with each other, thereby protecting the disconnecting switch 8, the voltage transformer 9, the circuit breaker 10, the current transformer 11, the contactor 12, the electrical appliance, and the like.
In summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A motor fault simulation platform is characterized by comprising a power transmission line (2), a motor module (5), a mechanical fault monitoring module (4), an electric fault simulation module (3) and a signal collection module (1);
the power transmission line (2) is provided with a power supply end connected with an external power supply (6) and a power utilization end connected with the motor module (5); the motor module (5) comprises a plurality of fault motors for testing and at least one normal motor; the mechanical fault monitoring module (4) is matched with one of the fault motors or one of the normal motors, and motor operation parameters are transmitted between the mechanical fault monitoring module and the signal collecting module (1); the electric fault simulation module (3) is arranged at the power utilization end side of the power transmission line (2); the signal collection module (1) is arranged on the power supply end side of the power transmission line (2).
2. The motor fault simulation platform of claim 1, wherein the motor operating parameters comprise at least one of vibration parameters, temperature parameters, and humidity parameters; the mechanical fault monitoring module (4) comprises a vibration speed sensor (17) and a vibration acceleration sensor (18) for measuring the vibration parameters, and further comprises a temperature sensor (19) for measuring the temperature parameters and a humidity sensor for measuring the humidity parameters.
3. The motor fault simulation platform according to claim 1, characterized in that the electrical fault simulation module (3) comprises a breaking assembly (25) capable of breaking the transmission line (2), a short-circuiting assembly (31) capable of short-circuiting two adjacent transmission lines (2) and a grounding assembly (28) capable of grounding the transmission lines (2).
4. A motor fault simulation platform according to claim 3, characterized in that the short-circuit assembly (31) comprises at least one first switching element (32) and at least one first driving module (30) for driving the first switching element (32); the first switching element (32) is connected between two adjacent live wires (20) in series and used for realizing short circuit of the two live wires (20), and the first driving module (30) is arranged between any live wire (20) and the zero wire (21);
the circuit breaking assembly (25) comprises at least one second switch piece (36) and at least one second driving module (24) used for driving the second switch piece (36), the second switch piece (36) is connected in series on any live wire (20) and used for achieving the on-off of the live wire (20), and the second driving module (24) is arranged between any live wire (20) and a neutral wire (21).
5. A motor fault simulation platform according to claim 3, characterized in that the grounding assembly (28) comprises a third switching element (27), a resistive element (26) and a current sensor (29), the resistive element (26) and the third switching element (27) being connected in series between either the live wire (20) and the neutral wire (21), the measuring terminal of the current sensor (29) being adapted to obtain the value of the current flowing through the resistive element (26), and the data transmission terminal of the current sensor (29) being adapted to transmit the value of the current to the signal collection module (1).
6. A motor fault simulation platform according to claim 3, characterized in that the electrical fault simulation module (3) further comprises a general control module (23), the general control module (23) comprising a fourth switching element (22), the fourth switching element (22) being arranged in series with the circuit breaking assembly (25), the short circuit assembly (31) and the grounding assembly (28), respectively, between any live wire (20) and neutral wire (21).
7. The motor fault simulation platform of claim 1, characterized in that the signal collection module (1) comprises a sensor module and a data processor (15);
the measuring end of the sensor module is matched with the power transmission line (2) and is used for measuring a first operating parameter of the power transmission line (2), and the data transmission end of the sensor module is in data transmission with the data processor (15), so that the data processor (15) obtains the first operating parameter of the power transmission line (2); the first operating parameter comprises a current, a voltage and a residual current of the transmission line (2);
and the mechanical fault monitoring module (4) and the data processor (15) are in data transmission, so that the data processor (15) obtains the motor operating parameters.
8. The motor fault simulation platform of claim 7, characterized in that the sensor modules comprise a current transformer (11), a residual current transformer (7) and a voltage transformer (9) respectively arranged on the power transmission line (2).
9. The motor fault simulation platform of claim 8, characterized in that the signal collection module (1) further comprises a contactor (12), a disconnector (8) and a circuit breaker (10); the isolating switch (8), the circuit breaker (10) and the contactor (12) are sequentially connected in series on the power transmission line (2) along the direction from the power supply end to the power utilization end of the power transmission line (2).
10. The motor fault simulation platform according to claim 9, characterized in that a surge protector (16) is provided on the power transmission line (2), the surge protector (16) being electrically connected to the data processor (15); the surge protector (16) is connected with the isolating switch (8) in parallel.
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| CN202220515839.9U CN217718022U (en) | 2022-03-10 | 2022-03-10 | Motor fault simulation platform |
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| CN202220515839.9U CN217718022U (en) | 2022-03-10 | 2022-03-10 | Motor fault simulation platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117666446A (en) * | 2024-01-30 | 2024-03-08 | 湖南高至科技有限公司 | Servo control driver test system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117666446A (en) * | 2024-01-30 | 2024-03-08 | 湖南高至科技有限公司 | Servo control driver test system |
| CN117666446B (en) * | 2024-01-30 | 2024-04-19 | 湖南高至科技有限公司 | Servo control driver test system |
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