Fixing device and method for motor brush spring pressure test

Abstract

The invention proposes a motor brush spring pressure test fixing device and method, the fixing device device includes a slide rail and a self-centering vise, the self-centering vise can move along the slide rail; each jaw of the self-centering vise is installed There are two sets of rolling elements; four sets of rolling elements in the two jaws clamp the shell of the cylindrical motor product; each set of rolling elements can roll freely in its own installation space, so that the clamped cylindrical motor product can rotate around its own axis Rotate so that during the motor brush spring pressure test, the force measuring line connecting the carbon brush and the tensile test equipment is automatically at the position passing through the axis of the cylindrical motor product itself. With the motor brush spring pressure test fixing device of the present invention, it is not necessary to accurately align the measurement position during measurement. Under the action of the measurement force, the rotation of the motor around the axis will automatically make the carbon brush and the tension meter in a vertical position, so that it can be quickly and accurately Measuring the carbon brush pressure value, the measurement efficiency and data accuracy are greatly improved.

Description

technical field [0001] The invention relates to the technical field of motor brush spring testing, in particular to a fixing device and method for motor brush spring pressure testing. Background technique [0002] The motors used in the aviation field have high requirements on the carbon brush pressure. Generally, the tension test equipment is used to measure the brush spring pressure to reflect the carbon brush pressure value of the motor; Align the hook with the tension test equipment in a vertical position, the operation is cumbersome, the measurement efficiency is low, and human factors affect the accuracy of the measurement: for example, when the motor carbon brush is in the figure 1 When the middle position is 1, the reading value of the tension test can truly reflect the pressure of the motor carbon brush, but when the motor carbon brush is in figure 1 When the middle position is 2 or 3, the error between the reading value of the tension test and the pressure of the ...

AI Technical Summary

Problems solved by technology

[0002] The motors used in the aviation field have high requirements on the carbon brush pressure. Generally, the tension test equipment is used to measure the brush spring pressure to reflect the carbon brush pressure value of the motor; Align the hook with the tension test equipment in a vertical position, the operation is cumbersome, the measurement efficiency is low, and human factors affect the accuracy of the measurement: for example, when the motor carbon brush is in the figure 1 When the middle position is 1, the reading value of the tension test can truly reflect the pressure of the motor carbon brush, but when the motor carbon brush is in figure 1 When the middle position is 2 or 3, the error between the reading value of the tension test and the pressure of the carbon brush of the motor is relatively large, and when it is difficult to ensure the measurement by manual measurement, the carbon brush of the motor is always at figure 1 The middle position is in 1 state, so the artificial measurement error is relatively large. If the motor carbon brush pressure exceeds the specified value, the failure rate of the motor will be high during use, which will seriously affect flight safety.

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