CN216209709U

CN216209709U - Servo motor rotating speed testing system

Info

Publication number: CN216209709U
Application number: CN202122421379.1U
Authority: CN
Inventors: 徐东
Original assignee: Suzhou Chenhang Zhiyuan Intelligent Technology Co ltd
Current assignee: Suzhou Chenhang Zhiyuan Intelligent Technology Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-04-05
Anticipated expiration: 2031-10-08

Abstract

The utility model relates to a servo motor rotating speed testing system which comprises a main control computer, wherein the main control computer is in communication coupling connection with a motor test bed, the motor test bed comprises a motor controller, the motor controller is electrically connected with at least one servo motor to be tested, each servo motor to be tested is provided with an independently arranged pulse control module and a DTU control driver, the motor test bed is provided with a data acquisition unit in coupling connection with the servo motor to be tested, the data acquisition unit comprises a dynamometer and a data exchanger, the dynamometer is provided with a rotating speed testing module and a torque testing module, the data acquisition unit is provided with a CAN bus module which is electrically connected with the DTU control driver, and the output end of the data exchanger is connected with the main control computer. The main control computer performs data interaction with the motor test bed and the data acquisition unit by using the data switch, and the motor test bed has the advantages of quick response, good stability and excellent data compatibility.

Description

Servo motor rotating speed testing system

Technical Field

The utility model relates to the technical field of motor testing, in particular to a servo motor rotating speed testing system.

Background

At present, in a research laboratory for testing the rotating speed of a servo motor, the servo motor needs to be subjected to model selection and then to control characteristic and output characteristic testing so as to meet the subsequent working requirements, the work of a dynamometer is influenced by external interference and internal temperature, the defects of slow response and poor data compatibility of the traditional wired communication exist, the testing effect is poor, and an optimization space exists.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the background art, the utility model provides a servo motor rotating speed testing system, which performs data interaction with a motor test bed and a data acquisition unit by using a data switch through a main control computer, and has the advantages of quick response, good stability and excellent data compatibility.

The utility model provides the following technical scheme:

a servo motor rotating speed testing system comprises a main control computer, wherein the main control computer is communicatively coupled with a motor test bed, the motor test bed comprises a motor controller, the motor controller is electrically connected with at least one servo motor to be tested, each servo motor to be tested is provided with an independently arranged pulse control module and a DTU control driver, the pulse control module is connected between the motor controller and the servo motor to be tested in series, an output port of the DTU control driver is connected with at least one DTU interface, the DTU interface is connected with the servo motor to be tested, the motor test bed is provided with a data acquisition unit which is coupled with the servo motor to be tested, the data acquisition unit comprises a dynamometer and a data exchanger, the dynamometer is provided with a rotating speed testing module and a torque testing module, the data acquisition unit is provided with a CAN bus module electrically connected with the DTU control driver, the data switch is coupled with the dynamometer and the CAN bus module, and the output end of the data switch is connected with the main control computer.

Preferably, the dynamometer is connected with a temperature testing channel through an interface, and an output port of the temperature testing channel is connected with an input port of the data switch.

Preferably, the temperature testing channel is a PT100 temperature sensor configured to be connected to a circuit interface of the dynamometer.

Preferably, the motor test bed is configured with a torque loading driver, an output port of the torque loading driver is connected with a torque loader, the torque loader is electrically connected between an output end of the pulse control module and an input end of the servo motor to be tested, the data acquisition unit is configured with a DTU communication module, and the DTU communication module is in communication connection with the torque loading driver.

Preferably, the torque loader is provided with a loading torque threshold for overload protection.

Preferably, the data acquisition unit further includes an ADC sampling module, an output port of the ADC sampling module is connected to an input port of the data switch, the ADC sampling module is coupled to the pulse control module and the torque loader, and the ADC sampling module is configured to acquire a voltage value and a current value associated with the pulse control module and the torque loader.

Preferably, the motor test bed is provided with at least one direct current power supply for supplying power, and the direct current power supply is electrically connected with the motor controller and the data acquisition unit.

Preferably, a memory and a display module are configured in the main control machine, the memory stores the test data associated with the motor test bed, and the display module displays the test data associated with the motor test bed on a screen.

The utility model has the beneficial effects that: utilize data exchange machine to carry out data interaction with motor test bench and data acquisition unit through the main control computer, data acquisition unit carries out data acquisition through dynamometer machine and ADC sampling module, can test multiunit servo motor, motor test bench utilizes DTU communication module, the wireless communication that DTU interface cooperation DTU control driver carried out data transfer, rethread data exchange machine integration test data carries out centralized transmission to the host computer, its response is swift, stability is good, data compatibility is superior.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

FIG. 1 is a block diagram of a test system according to the present invention.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The servo motor torque testing device is applied to the test of the control characteristic and the output characteristic related to the servo motor, and can test the torque, voltage and current characteristics of the servo motor.

The embodiment provides a system for testing the rotating speed of a servo motor, please refer to fig. 1, and fig. 1 is an architecture diagram of the testing system provided by the embodiment of the utility model, and the testing system comprises a main control computer, wherein a memory and a display module are configured in the main control computer, the memory stores test data associated with a motor test bed, and the display module displays the test data associated with the motor test bed on a screen;

the main control machine is communicatively coupled with a motor test bed, the motor test bed comprises a motor controller, the motor controller is electrically connected with at least one servo motor to be tested, the servo motors to be tested can be arranged in a plurality and are connected with the motor controller in parallel, each servo motor to be tested is provided with an independently arranged pulse control module and a DTU control driver, the pulse control module is connected between the motor controller and the servo motor to be tested in series, the pulse control module manages and controls the pulse quantity and the pulse direction of a pulse signal for driving the servo motor to be tested, the motor controller is an upper computer of the pulse control module, the output port of the DTU control driver is connected with at least one DTU interface, the DTU interface is connected with the servo motor to be tested, the DTU control driver is used for driving the working operation of the DTU interface, and the data acquisition unit further comprises an ADC sampling module, the output port of the ADC sampling module is connected with the input port of the data switch, the ADC sampling module is coupled with the pulse control module and the torque loader, and the ADC sampling module is used for collecting a voltage value and a current value which are related to the pulse control module and the torque loader;

the motor test bed is provided with a data acquisition unit which is coupled with a servo motor to be tested, the data acquisition unit comprises a dynamometer and a data exchanger, the dynamometer is provided with a rotating speed test module and a torque test module, the rotating speed and the torque of the servo motor to be tested are output by adopting analog quantity signals, the test efficiency is further improved, the reliable communication of data is enhanced, the data acquisition unit is provided with a CAN bus module which is electrically connected with a DTU control driver, the data exchanger is coupled with the dynamometer and the CAN bus module, and the output end of the data exchanger is connected with a main control computer.

In order to ensure effective and reliable data of the rotating speed testing module and the torque testing module and ensure the safety of the dynamometer, the dynamometer is connected with a temperature testing channel through an interface, an output port of the temperature testing channel is connected with an input port of a data exchanger, in some embodiments, the temperature testing channel is a PT100 temperature sensor which is configured and connected with a circuit interface of the dynamometer, the testing precision is high, the stability is good, and a temperature variable can be directly converted into a transmittable standardized output signal.

The motor test bed is configured with a torque loading driver, an output port of the torque loading driver is connected with a torque loader, the torque loader is electrically connected between an output end of the pulse control module and an input end of a servo motor to be tested, the data acquisition unit is configured with a DTU communication module, the DTU communication module is in communication connection with the torque loading driver, and the torque loader is provided with a loading torque threshold value used for overload protection and the torque loader.

In order to meet the power supply of the test end of the test system, the motor test bed is provided with at least one direct current power supply for supplying power, and the direct current power supply is electrically connected with the motor controller and the data acquisition unit.

The working principle of the servo motor test system is that data interaction is carried out between the main control machine and the motor test bed and between the main control machine and the motor test bed through the data switch and the data acquisition unit, the motor controller receives a control signal of the main control machine to the servo motor to be tested, the pulse control module outputs a pulse signal to drive the servo motor to be tested, and on one hand, the rotating speed test module and the torque test module in the dynamometer respectively sense the rotating speed and the torque variation of the servo motor to be tested in real time; on one hand, the CAN bus module is matched with the DTU to control the driver to start data transmission, so that the test data of the servo motor to be tested is acquired; the ADC sampling module collects a voltage value and a current value which are associated with the pulse control module and the torque loader, then test data which are associated with the rotating speed, the torque, the voltage and the current of the servo motor to be tested and related circuit characteristics are output to the main control computer through the data switch for analysis and calculation, the display module displays the test data on a screen, the DTU communication module and the DTU interface are matched with the DTU control driver for wireless communication of data transmission, and the response is quick and the stability is good.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A servo motor rotating speed testing system comprises a main control computer and is characterized in that the main control computer is communicatively coupled with a motor test bed, the motor test bed comprises a motor controller, the motor controller is electrically connected with at least one servo motor to be tested, each servo motor to be tested is provided with an independently arranged pulse control module and a DTU control driver, the pulse control module is connected between the motor controller and the servo motor to be tested in series, an output port of the DTU control driver is connected with at least one DTU interface, the DTU interface is connected with the servo motor to be tested, the motor test bed is provided with a data acquisition unit which is coupled with the servo motor to be tested, the data acquisition unit comprises a dynamometer and a data switch, the dynamometer is provided with a rotating speed testing module and a torque testing module, the data acquisition unit is provided with a CAN bus module electrically connected with the DTU control driver, the data switch is coupled with the dynamometer and the CAN bus module, and the output end of the data switch is connected with the main control computer.

2. The servo motor speed testing system of claim 1, wherein: the dynamometer is connected with a temperature testing channel through an interface, and an output port of the temperature testing channel is connected with an input port of the data switch.

3. The servo motor speed testing system of claim 2, wherein: the temperature testing channel is a PT100 temperature sensor which is configured and connected with a circuit interface of the dynamometer.

4. The servo motor speed testing system of claim 1, wherein: the motor test bed is provided with a torque loading driver, an output port of the torque loading driver is connected with a torque loader, the torque loader is electrically connected between an output end of the pulse control module and an input end of the servo motor to be tested, the data acquisition unit is provided with a DTU communication module, and the DTU communication module is in communication connection with the torque loading driver.

5. The servo motor speed testing system of claim 4, wherein: the torque loader is provided with a loading torque threshold for overload protection.

6. The servo motor speed testing system of claim 4, wherein: the data acquisition unit still includes ADC sampling module, ADC sampling module's output port with the input port of data switch links to each other, ADC sampling module coupling connection pulse control module and the moment of torsion loader, ADC sampling module is used for gathering pulse control module with the voltage value and the current value that the moment of torsion loader is relevant.

7. The servo motor speed testing system of claim 1, wherein: the motor test bed is provided with at least one direct current power supply for supplying power, and the direct current power supply is electrically connected with the motor controller and the data acquisition unit.

8. The servo motor speed testing system of claim 1, wherein: the main control machine is internally provided with a memory and a display module, the memory stores the test data associated with the motor test bed, and the display module displays the test data associated with the motor test bed on a screen.