Study of brake testing device

摘要

In many mechanically driven equipments, brake is an essential and important unit for ensuring safety and steady start-stop; especially when it is used in coal mine underground, it should meet the requirements stipulated in Coal Mine Safety Regulations. In this paper, we principally study simulated objects to be braked by means of thyristor and DC motor in laboratory to examine and check the braking ability and some other performances of the brake, including if the brake would meet the demand for safe operation in coal mine underground. In the meantime, the dynamic transient of brakingprocess and braking time of the brake can be plotted out and the maximum braking torque as well as the maximum outer case temperature can be printed out, so as to provide scientify grounds for the reliable operation of the equipments in-situ.