Linear motor performance test method

Abstract

The invention relates to the technical field of performance testing, in particular to a linear motor performance testing method. The test method specifically comprises the following steps: respectively connecting three phases U / V / W of the linear motor into three signal input ports of an oscilloscope, controlling a rotary servo shaft to move, dragging the linear motor to run at a constant speed, obtaining a reaction potential oscillogram of the linear motor, and calculating to obtain a line peak value back electromotive force constant and a thrust constant; in the torque mode, the motion direction of the linear motor is blocked by adopting a force sensor, corresponding locked-rotor force is measured in different current states, and a force constant, rated thrust and peak thrust are obtained; a laser interferometer is adopted to measure the positioning precision and the repeated positioning precision value of each section in the whole stroke under the no-load condition of the linear motor; a laser interferometer is adopted to measure position fluctuation and speed fluctuation of the linear motor in different states.

Description

technical field [0001] The invention relates to the technical field of performance testing, in particular to a method for testing the performance of a linear motor. Background technique [0002] Linear motor is a conversion device from rotary motion to linear motion. It is an electric transmission device that can directly convert electrical energy into linear mechanical energy. It is widely used in the mechanical field. [0003] For the test of linear motor performance, in the prior art, the test of different performance parameters of the motor is mainly completed through the control of the upper computer to the lower computer, which includes output torque, output speed, voltage, current, power, efficiency, temperature, armature Winding and other performance, so as to judge the quality of the product; and by testing the thrust, speed and output power of the motor, as well as the input characteristic voltage, current or temperature rise and other parameters, based on the abov...

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Problems solved by technology

[0003] For the performance test of the linear motor, in the prior art, the test of different performance parameters of the motor is mainly completed through the control of the upper computer to the lower computer, which includes output torque, output speed, voltage, current, power, efficiency, temperature, armature Winding and other performance, so as to judge the quality of the product; and by testing the thrust, speed and output power of the motor, as well as the input characteristic voltage, current or temperature rise and other parameters, based on the above tests, the performance of the linear motor cannot be fully obtained, and different Proper use of type linear motor

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