CN211698093U - Servo motor test bench and test system - Google Patents
Servo motor test bench and test system Download PDFInfo
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- CN211698093U CN211698093U CN201921809278.8U CN201921809278U CN211698093U CN 211698093 U CN211698093 U CN 211698093U CN 201921809278 U CN201921809278 U CN 201921809278U CN 211698093 U CN211698093 U CN 211698093U
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Abstract
The utility model discloses a servo motor test bench and a test system, wherein, the test bench mainly comprises a base, a three-dimensional adjustable bracket, a sensor bracket, a load motor bracket, a torque sensor and a locked rotor device, wherein the three-dimensional adjustable bracket, the sensor bracket and the load motor bracket are fixed on the top surface of the base; the test system comprises the test bench, a load motor frequency converter, a data acquisition device and a main control cabinet, wherein the load motor, the load motor frequency converter, the data acquisition device and the main control cabinet are installed on the test bench. The utility model provides a test bench supports the experiment of multiple test item, through buildding the utility model discloses a test system can further improve motor efficiency of software testing and the degree of accuracy. Meanwhile, the frequency converter has a power grid feedback function, and electric energy generated in the test process is fed back to the power grid, so that energy is saved.
Description
Technical Field
The utility model relates to a dynamometer system especially relates to a servo motor test rack and test system.
Background
In order to ensure the quality of a new servo motor, the performance of the servo motor needs to be tested before the servo motor leaves a factory, so as to ensure that the quality of the servo motor meets the use requirement. The test types of the servo motor comprise a plurality of tests such as a rotation direction, a positive and negative rotation speed difference rate, a rated data test and the like, and the conventional dynamometer system is difficult to complete a comprehensive test project.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, an object of the present invention is to provide a servo motor testing rack, which includes a base, and a three-dimensional adjustable bracket, a sensor bracket and a load motor bracket fixed on the top surface of the base; and a torque sensor and a locked rotor device are fixed on the sensor bracket, and rotating shafts of the torque sensor and the locked rotor device are mutually connected to form a transmission shaft for connecting a tested motor arranged on the three-dimensional adjustable bracket and a load motor arranged on the load motor bracket.
Preferably, a flange type mounting motor support is arranged on the three-dimensional adjustable support and used for rapidly mounting a flange type mounting motor.
Preferably, a safety protection cover is installed on the transmission shaft.
Preferably, an inertia disc is connected between the transmission shaft and the motor to be measured.
Preferably, the sensor bracket and the load motor bracket are also provided with vibration sensors.
Another object of the present invention is to provide a servo motor testing system, which comprises the above-mentioned testing rack, a load motor installed on the testing rack, a load motor frequency converter, a data acquisition device and a main control cabinet; the load motor is connected with a load motor frequency converter; the load motor frequency converter is connected with the power grid and the main control cabinet; the tested motor is arranged on the test bench for testing and is connected with the power grid through an adaptive motor driver; the data acquisition device is used for acquiring the operation parameters of the tested motor and transmitting the parameters to the main control cabinet; the main control cabinet receives and displays the sensor data on the load motor frequency converter, the data acquisition device and the test bench, and is also used for controlling the load motor frequency converter and the motor driver driving motor to operate under different parameters.
Preferably, the data acquisition device is a power analyzer and acquires output current, voltage or harmonic parameters of the motor to be detected.
Preferably, the power analyzer is connected with the main control cabinet through an RS232 interface or an ethernet.
Preferably, the load motor frequency converter is a siemens S120 series four-quadrant frequency converter.
Preferably, the main control cabinet is a Siemens controller S-1500.
The beneficial effects of the utility model reside in that: the utility model provides a test bench supports the experiment of multiple test item, through buildding the utility model discloses a test system can further improve motor efficiency of software testing and the degree of accuracy. Meanwhile, the frequency converter has a power grid feedback function, and electric energy generated in the test process is fed back to the power grid, so that energy is saved.
Drawings
FIG. 1 is an embodiment of a servo motor test stand according to the present invention;
FIG. 2 is an embodiment of the servo motor test rack of the present invention;
fig. 3 is a schematic structural diagram of the testing system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
An object of the utility model is to provide a servo motor test bench for bearing a tested motor to test, as shown in fig. 1, comprising a three-dimensional adjustable bracket 2, a sensor bracket 3 and a load motor bracket 4, wherein the base 1 is fixed on the top surface of the base; a torque sensor 5 and a locked rotor device 6 are fixed on the sensor support 3, and rotating shafts of the torque sensor 5 and the locked rotor device 6 are connected with each other to form a transmission shaft 7 which is used for connecting a tested motor arranged on the three-dimensional adjustable support 2 and a load motor arranged on the load motor support 4.
The torque sensor 5 can specifically adopt a shaft type 4503 speed measurement torque sensor. The locked-rotor device 6 comprises a bearing, a rotating shaft is arranged inside the bearing, the locked-rotor device 6 limits the rotation of the rotating shaft inside by adopting a bolt, and the locked-rotor device can be designed to lock the rotating shaft from any angle when needed. The torque sensor 5 and the locked rotor device 6 can be connected through a coupler specifically, and the two ends of the locked rotor device can also be connected with the output shaft of the motor through the coupler.
As shown in fig. 2, in another embodiment of the test bench, a flange-type mounting motor bracket 8 is arranged on the three-dimensional adjustable bracket 2, and is used for quickly mounting a flange-type mounting motor. The mounting mode of motor divide into base formula and flange formula, and base formula motor can direct mount on three-dimensional adjustable support 2, and flange formula motor adopts flange formula installation motor support 8 to install on three-dimensional adjustable support 2. Meanwhile, a safety protection cover 9 is arranged on the transmission shaft 7 and mainly covers the torque sensor 5 and the upper part of the locked rotor device 6.
In order to further improve the test, an inertia disc 10 can be connected between the transmission shaft 7 and the tested motor. And the sensor bracket 3 and the load motor bracket 4 can also be provided with vibration sensors for testing the vibration condition of the motor during operation.
Another object of the present invention is to provide a servo motor testing system, which comprises the above-mentioned testing rack, a load motor installed on the testing rack, a load motor frequency converter, a data acquisition device and a main control cabinet; the load motor is connected with a load motor frequency converter; the load motor frequency converter is connected with the power grid and the main control cabinet; the tested motor is arranged on the test bench for testing and is connected with the power grid through an adaptive motor driver; the data acquisition device is used for acquiring the operation parameters of the tested motor and transmitting the parameters to the main control cabinet; the main control cabinet receives and displays the sensor data on the load motor frequency converter, the data acquisition device and the test bench, and is also used for controlling the load motor frequency converter and the motor driver driving motor to operate under different parameters.
Specifically, the data acquisition device is a power analyzer, acquires output current, voltage or harmonic parameters of the tested motor, the model of the power analyzer is WT333E, and the power analyzer is connected with the main control cabinet through an RS232 interface or an Ethernet. The load motor frequency converter is a Siemens S120 series four-quadrant frequency converter, adopts an IGBT control technology and a vector control technology, has two operation functions of constant torque and constant rotating speed, has four-quadrant operation capacity, and has a function of completing high-dynamic motor test bench transient test circulation. The main control cabinet is a Siemens controller S7-1500, and the PID period is shortest for 5 ms; the rotating speed and the load are regulated and controlled by adopting a digital segmented double-loop PID. The method has multiple control modes, undisturbed switching of various control characteristics, and switching of the control algorithm integrated with an undisturbed switching measurement and control mode in an undisturbed mode.
The servo motor test items mainly comprise a rotation direction test, a positive and negative rotation difference rate test, a rated data test, a continuous locked rotor test, a peak locked rotor test, a working area, a back electromotive force constant, a stator linear resistance test, an electric time constant test, a torque fluctuation coefficient, a temperature rise test (resistance measurement method), a static friction moment test and a thermal resistance and thermal time constant test. In the test, the main control cabinet obtains relevant parameters through a sensor and a power meter and analyzes the parameters to obtain a test result through a load motor frequency converter and a motor driver under the operating environment of a corresponding test project.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a ROM, a RAM, etc.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (10)
1. A servo motor test bench is characterized by comprising a base (1), a three-dimensional adjustable support (2) fixed on the top surface of the base, a sensor support (3) and a load motor support (4); a torque sensor (5) and a locked rotor device (6) are fixed on the sensor support (3), and rotating shafts of the torque sensor (5) and the locked rotor device (6) are connected with each other to form a transmission shaft (7) which is used for connecting a tested motor arranged on the three-dimensional adjustable support (2) and a load motor arranged on the load motor support (4).
2. The servo motor test bench according to claim 1, characterized in that the three-dimensional adjustable support (2) is provided with a flange-mounted motor support (8) for quick mounting of a flange-mounted motor.
3. A servo motor test bench according to claim 1, characterized in that the transmission shaft (7) has a safety shield (9) mounted thereon.
4. A servo motor test bench according to claim 1, characterized in that an inertia disc (10) is connected between the transmission shaft (7) and the motor to be tested.
5. A servo motor test bench according to claim 1, characterized in that the sensor holder (3) and the load motor holder (4) are further provided with vibration sensors.
6. A servo motor test system is characterized by comprising a test bench, a load motor frequency converter, a data acquisition device and a main control cabinet, wherein the test bench is as claimed in any one of claims 1 to 5; the load motor is connected with a load motor frequency converter; the load motor frequency converter is connected with the power grid and the main control cabinet; the tested motor is arranged on the test bench for testing and is connected with the power grid through an adaptive motor driver; the data acquisition device is used for acquiring the operation parameters of the tested motor and transmitting the parameters to the main control cabinet; the main control cabinet receives and displays the sensor data on the load motor frequency converter, the data acquisition device and the test bench, and is also used for controlling the load motor frequency converter and the motor driver driving motor to operate under different parameters.
7. The servo motor testing system of claim 6, wherein the data acquisition device is a power analyzer for acquiring output current, voltage or harmonic parameters of the tested motor.
8. The servo motor test system of claim 7, wherein the power analyzer is connected to the main control cabinet through an RS232 interface or an Ethernet.
9. The servo motor test system of claim 6, wherein the load motor inverter is a Siemens S120 series four quadrant inverter.
10. The servo motor test system of claim 6, wherein the master control cabinet is a siemens controller S7-1500.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921809278.8U CN211698093U (en) | 2019-10-25 | 2019-10-25 | Servo motor test bench and test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921809278.8U CN211698093U (en) | 2019-10-25 | 2019-10-25 | Servo motor test bench and test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110618383A (en) * | 2019-10-25 | 2019-12-27 | 四川诚邦浩然测控技术有限公司 | Servo motor test bench and test system |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110618383A (en) * | 2019-10-25 | 2019-12-27 | 四川诚邦浩然测控技术有限公司 | Servo motor test bench and test system |
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