Simulation Study on Emergency Safety Braking of Hoist Brakes under Different Working Conditions
In order to improve the safety and reliability of the hoist in mine operation,we choose the shaftless disc brake by comparing the performance of the rear-mounted and shaftless disc brakes,and analyse the effects of initial braking speed,pressure and friction coefficient on the emergency safety braking performance according to the control variable method,and conclude that:increasing the initial braking speed reduces the braking performance,and increasing braking pressure and friction coefficient improves the braking performance.It is found that:increasing the initial braking speed will reduce the braking performance,increasing the braking pressure and friction coefficient will improve the braking performance,but all of them will increase the fluctuation range and vibration frequency,and the braking stability will be poor;and the attenuation of the friction coefficient will reduce the braking torque and weaken the braking effect.
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