Carbon brush retention force testing device and testing system

Abstract

This utility model relates to the field of carbon brush holding force testing, and discloses a carbon brush holding force testing device and system. The testing device consists of an upper pressure block, a lower base, and an ejector block. A first front end and a second front end extend from the top of the upper pressure block and the lower base, respectively. The middle of the first and second front ends are respectively provided with a first through hole and a second through hole. The top of the second front end is used to mount a spring, with the carbon brush portion of the spring embedded in the second through hole. One end of the ejector block is connected to the force measuring end of an external force measuring machine, and the other end of the ejector block protrudes through the first through hole and presses down on the top of the carbon brush. The force measuring machine applies gradually increasing downward pressure to the ejector block, measuring and recording the carbon brush holding force in real time to determine product quality, improve testing efficiency and reliability. Simultaneously, the testing device has a simple structure, is easy to install and disassemble, facilitates subsequent maintenance, and reduces costs.

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