CN220829574U - Moment motor blocking test equipment - Google Patents

Abstract

The utility model relates to torque motor load blocking test equipment which comprises a workbench, a load motor, a torque rotating speed sensor, an angle encoder, a simulation oscilloscope, a resistance meter and a three-dimensional adjustable clamp, wherein the load motor, the torque rotating speed sensor, the angle encoder, the simulation oscilloscope, the resistance meter and the three-dimensional adjustable clamp are sequentially arranged on the workbench from back to front, the load motor is arranged at the rear end of the workbench, the torque rotating speed sensor is connected to the front end of the load motor and is electrically connected with the angle encoder, the simulation oscilloscope and the resistance meter, the three-dimensional adjustable clamp is positioned at the front end of the torque rotating speed sensor and is used for bearing a measuring motor, and the measuring motor is connected with the front end of the torque rotating speed sensor. The utility model has the advantages of high automation degree, high testing efficiency, high testing precision, reduced labor intensity of personnel and the like.

Description

Moment motor blocking test equipment

Technical Field

The utility model relates to the technical field of motor performance test, in particular to torque motor load blocking test equipment.

Background

The torque motor is a special motor with soft mechanical property and wide speed regulation range. Can still keep running when the motor is low-speed even locked-rotor (namely the rotor can not rotate), and can not cause the damage of the motor. In this mode of operation, the motor may provide a steady torque to the load (hence the name torque motor). The torque motor may also provide a torque (braking torque) opposite to the direction of operation. The shaft of such a motor outputs power not at constant power but at constant torque.

The torque motor blocking load test aims to evaluate the performance and characteristics of the motor in a blocking load state. Through fixing the motor, preventing the motor from rotating and applying a certain load, the parameters such as maximum torque output, current and power consumption of the motor in a blocked load state can be tested. This test can help determine important performance metrics such as power rating, torque capacity, and current rating of the motor, as well as evaluate the quality and reliability of the motor. In addition, the blocking test can also be used for detecting the protection function of the motor, such as overload protection, short-circuit protection and the like.

The test items aiming at the torque motor are armature resistance (voltammetry), static friction torque, peak locked-rotor torque/current, continuous locked-rotor torque/current, locked-rotor sensitivity, torque fluctuation coefficient and torque current linearity, and are automatically recorded. Most of the current market adopts a mode of manually utilizing an instrument and meter to cooperate with a clamp jig to measure static friction torque and blocking torque by utilizing weights, and usually, a torque motor needs to be tested for 30-50 minutes, the test cannot be interrupted in the process of testing, the interruption needs to be retested, so that a large amount of labor is consumed in the test, and the efficiency is extremely low; the test process needs to manually record data, and the real-time data can not be tested, so that only the test result can be displayed, and the accuracy and the beat of the data are greatly influenced.

In summary, there is a need in the market for a torque motor load blocking test device with high automation degree, high test efficiency and reduced labor intensity, so as to solve the beat problem and the test precision problem of the torque motor load blocking test.

Disclosure of utility model

To solve the problems set forth in the background art. The torque motor blocking test equipment provided by the utility model has the advantages of reasonable structural design, high degree of automation, high test efficiency, high test precision, reduced labor intensity and the like, solves the beat problem and the test precision problem of the torque motor blocking test in the prior art, and is used for testing parameters such as current, voltage, torque, motor resistance and the like when the torque motor is blocked.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a torque motor blocks up and carries test equipment, includes the workstation, installs load motor, moment of torsion rotational speed sensor, angle encoder, analog oscilloscope, resistance meter and the three-dimensional adjustable anchor clamps on the workstation in proper order from the back to the front, load motor installs the rear end of workstation, and moment of torsion rotational speed sensor connects in load motor's front end to with angle encoder, analog oscilloscope and resistance meter electric connection, the three-dimensional adjustable anchor clamps are located moment of torsion rotational speed sensor's front end for bear and measure the motor, measure the motor and be connected with moment of torsion rotational speed sensor's front end.

As a further explanation of the present technical solution:

Preferably, the rear end of the workbench is provided with a first bracket, the front end of the first bracket is provided with a second bracket, the load motor is mounted on the first bracket, and the torque rotation speed sensor is mounted between the first bracket and the second bracket.

Preferably, the front end and the rear end of the torque rotating speed sensor are respectively provided with a coupler, and the torque rotating speed sensor is connected with the load motor through a coupler positioned at the rear end and is connected with the measuring motor through a coupler positioned at the front end.

Preferably, the three-dimensional adjustable clamp comprises a clamping motor, clamping jaws and a pressing plate, wherein the clamping motor is vertically arranged at the front end of the second bracket, the clamping jaws are vertically arranged at the upper end of a transmission rod of the clamping motor and can move upwards or downwards relative to the workbench under the transmission action of the clamping motor, the pressing plate is transversely arranged at the upper end of the clamping jaws, the measuring motor is arranged between the clamping jaws and the pressing plate, and the clamping motor, the clamping jaws and the pressing plate are mutually matched to bear the measuring motor, so that the measuring motor is connected with the torque rotation speed sensor through a coupler positioned at the front end of the torque rotation speed sensor.

Preferably, a bearing support seat is arranged on the second bracket, and a transmission rod of the measuring motor penetrates through the bearing support seat to be connected with the torque rotating speed sensor.

Preferably, the load motor, the torque rotation speed sensor, the angle encoder, the analog oscilloscope, the resistance meter and the three-dimensional adjustable clamp all comprise three groups, and are uniformly distributed on the workbench at intervals.

Preferably, the load motor is a servo motor speed reducer.

Preferably, the intelligent control system further comprises an industrial personal computer, wherein the industrial personal computer is electrically connected with three groups of load motors, torque and rotation speed sensors, an angle encoder, an analog oscilloscope, a resistance meter and a clamping motor of the three-dimensional adjustable clamp respectively, and controls the operation of the three groups of load motors, torque and rotation speed sensors, the angle encoder, the analog oscilloscope, the resistance meter and the clamping motor of the three-dimensional adjustable clamp.

Compared with the prior art, the utility model has the beneficial effects that:

the load motor, the torque rotation speed sensor, the angle encoder, the analog oscilloscope, the resistance meter and the three-dimensional adjustable clamp comprise three groups which are uniformly distributed on the workbench at intervals, so that the three groups of measuring motors can be subjected to load blocking test at the same time, large moment, medium moment and small moment measurement can be respectively carried out, the load motor adopts a servo motor speed reducer, and a large amount of manpower is saved while the test efficiency is greatly improved.

The torque rotation speed sensor is connected to the front end of the load motor and is electrically connected with the angle encoder, the analog oscilloscope and the resistance meter, and the measurement can be completed by controlling the industrial personal computer, so that the defects that the torque motor needs to be tested for 30-50 minutes, the torque motor cannot be interrupted and needs to be retested in the testing process, the labor intensity of personnel is reduced, the automation degree is high, the testing can be completed in 3-5 minutes, the testing efficiency is improved by 10 times compared with the prior art, and the testing precision is high.

The utility model does not need to manually record data and test the data in real time, can accurately measure and record the monitoring of the whole process, ensures the real-time property and accuracy of the data, is used for testing the parameters such as current, voltage, torque, motor resistance and the like when the torque motor is locked, has high practicability and is suitable for popularization.

Fourthly, the three-dimensional adjustable clamp carries the measuring motor through the mutual matching of the clamping motor, the clamping jaw and the pressing plate, so that the measuring motor is connected with the torque rotating speed sensor through the coupler positioned at the front end of the torque rotating speed sensor, and the degree of automation is further improved.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

In the figure: 1. a work table; 2. a load motor; 3. a torque rotation speed sensor; 4. a first bracket; 5. a second bracket; 6. a coupling; 7. clamping the motor; 8. a clamping jaw; 9. and (5) pressing plates.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, the utility model relates to a torque motor load blocking test device, which comprises a workbench 1, a load motor 2, a torque rotation speed sensor 3, an angle encoder (not shown in the figure), a simulation oscilloscope (not shown in the figure), a resistance meter (not shown in the figure) and a three-dimensional adjustable clamp, wherein the load motor 2, the torque rotation speed sensor 3, the angle encoder, the simulation oscilloscope and the resistance meter are sequentially arranged on the workbench 1 from back to front, the load motor 2 is arranged at the rear end of the workbench 1, the torque rotation speed sensor 3 is connected to the front end of the load motor 2, the simulation oscilloscope is electrically connected with the angle encoder, the resistance meter, the three-dimensional adjustable clamp is positioned at the front end of the torque rotation speed sensor 3 and is used for bearing a measuring motor, and the measuring motor is connected with the front end of the torque rotation speed sensor 3.

As shown in fig. 1, a first bracket 4 is disposed at the rear end of the workbench 1, a second bracket 5 is disposed at the front end of the first bracket 4, the load motor 2 is mounted on the first bracket 4, and the torque rotation speed sensor 3 is mounted between the first bracket 4 and the second bracket 5.

As shown in fig. 1, the front end and the rear end of the torque rotation speed sensor 3 are respectively provided with a coupling 6, and the torque rotation speed sensor 3 is connected with the load motor 2 through the coupling 6 positioned at the rear end and is connected with the measuring motor through the coupling 6 positioned at the front end.

As shown in fig. 1, the three-dimensional adjustable clamp comprises a clamping motor 7, a clamping jaw 8 and a pressing plate 9, wherein the clamping motor 7 is vertically installed at the front end of the second bracket 5, the clamping jaw 8 is vertically installed at the upper end of a transmission rod of the clamping motor 7 and can move upwards or downwards relative to the workbench 1 under the transmission action of the clamping motor 7, the pressing plate 9 is transversely arranged at the upper end of the clamping jaw 8, the measuring motor is arranged between the clamping jaw 8 and the pressing plate 9 front and back, and the clamping motor 7, the clamping jaw 8 and the pressing plate 9 are mutually matched to bear the measuring motor, so that the measuring motor is connected with the torque rotation speed sensor 3 through a coupler 6 positioned at the front end of the torque rotation speed sensor 3.

Further, a bearing support seat (not shown in the figure) is arranged on the second bracket 5, and a transmission rod of the measuring motor passes through the bearing support seat to be connected with the torque rotation speed sensor 3. The load motor 2, the torque rotation speed sensor 3, the angle encoder, the analog oscilloscope, the resistance meter and the three-dimensional adjustable clamp all comprise three groups, and are uniformly distributed on the workbench 1 at intervals. In this embodiment, the load motor 2 is a servo motor reducer.

Further, the device also comprises an industrial personal computer (not shown in the figure), wherein the industrial personal computer is electrically connected with the three groups of load motors 2, the torque rotation speed sensor 3, the angle encoder, the analog oscilloscope, the resistance meter and the clamping motor 7 of the three-dimensional adjustable clamp respectively, and controls the operation of the three groups of load motors.

The method for testing the parameters of current, voltage, torque, motor resistance and the like when the torque motor is locked up comprises the following steps:

And (3) detecting the resistance of the motor: the method comprises the steps of fixing a motor to be measured, recording the value of a current angle encoder, controlling a load motor 2 by a testing system to output maximum torque, applying forward set voltage to the motor to be measured, measuring the voltage and current of an armature end between two lead wires of the motor by a power meter, recording the voltage and current of the armature end under the current angle, powering off the motor to be measured, controlling the load motor 2 by the testing system to drag an extending shaft of the motor to be measured to another angle, continuously testing the voltage and current of the motor to be measured at different positions, continuously measuring the voltage and current at three or more positions, and calculating the resistance of the motor by a formula.

Static friction force detection: the measured moment motor is fixed, the value of the current angle encoder is recorded, the test system controls the load motor 2 to be in a rotating speed mode torque limiting state (the actual output of the rotating speed is set to be 1-10 rpm), the measured moment motor is dragged to stretch out of the shaft through slow loading, the angle change is larger than or equal to a specified value, the sum angle of real-time torque is recorded, and the maximum torque is taken as the static friction torque.

Peak locked torque/peak locked current: the motor of the measured moment is fixed, the testing software is started through the industrial personal computer, the value of the current angle encoder is recorded, the testing system controls the load motor 2 to output the maximum torque, and the forward peak value locked-rotor voltage is applied to the motor of the measured moment. And the peak torque and current of the measured torque motor under the current angle are read through an electric parameter meter and a torque rotating speed sensor 3 meter. And the tested torque motor is powered off, and the testing system controls the load motor 2 to drag the extending shaft of the tested torque motor to another angle so as to continuously test the peak torque and current under the angle. And (3) testing reverse peak torque and current according to the same method after the peak torque and current under all angles are set after the test is finished and the original point is returned, and storing the data.

Continuous locked-rotor torque/continuous locked-rotor current: the motor with the moment to be measured is fixed, the testing software is started through the industrial personal computer, the value of the current angle encoder is recorded, the testing system controls the load motor 2 to output the maximum torque, and the forward set voltage is applied to the motor with the moment to be measured. And the continuous torque and current of the measured torque motor under the current angle are read in real time through an electric parameter instrument and a torque rotation speed sensor 3 instrument and are stopped after a period of time is continued or the surface of the measured torque motor reaches a certain temperature, and the process data are stored. The measured moment motor is powered off, and the testing system controls the load motor 2 to drag the extending shaft of the measured moment motor to another angle so as to continuously test the continuous torque and current under the angle. And (3) testing reverse continuous torque and current according to the same method after the continuous torque and current at all angles are set after the test is finished and return to the original point, and storing data.

Torque ripple coefficient: the test software confirms the maximum value and the minimum value of continuous locked-rotor torque in the positive and negative directions according to the test data in continuous locked-rotor, and calculates and determines the torque fluctuation coefficient according to the following formula: kmb = (Tmax-Tmin)/(tmax+tmin)/100%; wherein: kmb —torque ripple coefficient; tmax—maximum continuous locked rotor torque (N.m); tmin-minimum continuous locked rotor torque (N.m).

Torque-current linearity: the motor of the measured moment is fixed, the testing software is started through the industrial personal computer, the value of the current angle encoder is recorded, the testing system controls the load motor 2 to output the maximum torque, the forward set voltage is applied to the motor of the measured moment, and the blocking current is controlled to be 20%,40%,60%,80% and 100%. Measuring corresponding continuous blocking torque, reading continuous torque and current of a measured torque motor under the current angle in real time through an electric parameter meter and a torque rotating speed sensor 3 meter, stopping after a period of time is continued or the surface of the measured torque motor reaches a certain temperature, storing process data, manufacturing a torque-current characteristic diagram (the x axis is current, the Y axis is torque) in an EXCEL table, drawing the most approximate straight line according to each measuring point, calculating the absolute value of the difference between each measuring point and the corresponding point (calculated by Y=ax+b) under the same current on the most approximate straight line, dividing the blocking torque value of the point on the most approximate straight line, namely the torque current linearity of the point, calculating the linearity of the direction according to the same method, and recording data.

In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. The utility model provides a moment motor stifled test equipment that carries which characterized in that: the three-dimensional adjustable clamp comprises a workbench, a load motor, a torque rotating speed sensor, an angle encoder, a simulated oscilloscope, a resistance meter and a three-dimensional adjustable clamp which are sequentially arranged on the workbench from back to front, wherein the load motor is arranged at the rear end of the workbench, the torque rotating speed sensor is connected to the front end of the load motor and is electrically connected with the angle encoder, the simulated oscilloscope and the resistance meter, and the three-dimensional adjustable clamp is arranged at the front end of the torque rotating speed sensor and is used for bearing a measuring motor which is connected with the front end of the torque rotating speed sensor.

2. The torque motor load lock testing apparatus of claim 1, wherein: the rear end of workstation is equipped with first support, and the front end of first support is equipped with the second support, load motor installs on first support, torque rotation speed sensor installs between first support and second support.

3. The torque motor load lock testing apparatus of claim 2, wherein: the front end and the rear end of the torque rotating speed sensor are respectively provided with a coupler, and the torque rotating speed sensor is connected with the load motor through the coupler positioned at the rear end and is connected with the measuring motor through the coupler positioned at the front end.

4. A torque motor load lock testing device according to claim 3, wherein: the three-dimensional adjustable clamp comprises a clamping motor, clamping jaws and a pressing plate, wherein the clamping motor is vertically arranged at the front end of the second support, the clamping jaws are vertically arranged at the upper end of a transmission rod of the clamping motor and can move upwards or downwards relative to a workbench under the transmission action of the clamping motor, the pressing plate is transversely arranged at the upper end of the clamping jaws, the measuring motor is arranged between the clamping jaws and the pressing plate, and the clamping motor, the clamping jaws and the pressing plate are mutually matched to bear the measuring motor, so that the measuring motor is connected with the torque rotation speed sensor through a coupler positioned at the front end of the torque rotation speed sensor.

5. The torque motor load lock testing apparatus of claim 4, wherein: and the second bracket is provided with a bearing support seat, and a transmission rod of the measuring motor penetrates through the bearing support seat to be connected with the torque rotating speed sensor.

6. The torque motor load lock testing apparatus of claim 5, wherein: the load motor, the torque rotation speed sensor, the angle encoder, the analog oscilloscope, the resistance meter and the three-dimensional adjustable clamp all comprise three groups, and are uniformly distributed on the workbench at intervals.

7. The torque motor load lock testing apparatus of claim 6, wherein: the load motor is a servo motor speed reducer.

8. The torque motor load lock testing apparatus according to any one of claims 1 to 7, wherein: the intelligent control system further comprises an industrial personal computer which is electrically connected with the three groups of load motors, the torque and rotation speed sensor, the angle encoder, the analog oscilloscope, the resistance meter and the clamping motor of the three-dimensional adjustable clamp respectively and controls the operation of the three groups of load motors, the torque and rotation speed sensor, the angle encoder, the analog oscilloscope, the resistance meter and the clamping motor of the three-dimensional adjustable clamp.