Armature insulation and voltage resistance testing device

Abstract

The invention discloses an armature insulation and voltage resistance testing device, which comprises an insulation and voltage resistance tester, an upper computer, a voltage switching device and an armature voltage applying device, and is used for detecting the voltage resistance performance and the insulation performance among all commutator segments of an armature. The armature insulation and voltage resistance testing device is simple in control process, does not leave a trace on a commutator, does not damage a probe, and can test the insulation and voltage resistance performance between any commutator segments flexibly, conveniently and efficiently.

Description

technical field [0001] The invention relates to armature insulation withstand voltage testing equipment for testing the withstand voltage performance and insulation performance between commutator segments of a DC motor armature. Background technique [0002] The armature is the core component of the DC motor, and its structure and manufacturing process are quite complicated. Therefore, it is necessary to test the performance of the armature before assembly. The withstand voltage performance and insulation performance between the commutator segments are the main tests. project. At present, the method of testing the withstand voltage performance and insulation performance between each commutator segment is as follows: First, two probes are respectively in contact with the first commutator segment and the second commutator segment (probes and The cylinder piston is connected), and then apply voltage to the commutator slice for testing. After the test, release the probe, drive ...

AI Technical Summary

Problems solved by technology

(2) When the spacing needs to be changed, the angle between the probes must be adjusted

(3) During each test, it is necessary to make the probe contact and separate from the commutator segment, therefore, the cylinder piston must be extended and retracted

(5) When the accuracy of the armature rotation mechanism under test is not high, it is easy to cause poor contact between the commutator plate and the probe. When the voltage is applied, the contact part of the probe will melt due to the excessive contact resistance, and the There are traces left on the surface, which will affect the service life of the probe and product quality

During each commutator plate performance test, the cylinder piston must complete the extension and retraction actions, and the armature needs to be rotated by an angle driven by the rotating mechanism, so the test efficiency is low; the insulation and voltage resistance performance between any commutator plates During the test, it is very inconvenient to adjust; in order to avoid poor contact between the commutator plate and the probe, the rotation accuracy of the armature rotating mechanism is required to be high

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