Technical Research on Electromechanical Braking System in Coal Mine Hoisting Machine
The electromechanical braking principle of mine hoist is described,and the detailed parameters and braking performance of the electromechanical brake are given.In addition,a large-load,high-response electromechanical brake test platform was designed and developed.The test results show that the braking error of the designed electromechanical brake is less than 9％,and the braking gap elimination time is less than 0.1 s.The motor current input is linearly related to the brake positive pressure output,with a slope of 4.11 and an intercept of 0.58,which meets the requirements of positive pressure of the mine hoist.The screw displacement output and brake pressure output are in a cubic relationship with a small zero error.
mine hoistelectromechanical brakebraking responsebraking force
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