Research and Test on Full Hydraulic Wet Brake System for Rubber Wheel Rig's Chassis

In order to solve the brake safety problem accompanying the rubber wheel drilling machine walking under the coal mine, it is designed that a full hydraulic wet braking system, and its working principle and design scheme of the whole system are analyzed. Adopting the idea of redundant design, starting from the hydrostatic closed system and the mechanical wet brake, the system meets the requirements of working conditions. For the problem of unstable parking brake pressure, a detailed calculation is performed, preferably an accumulator group. The test results show that the whole system has high parking torque, stable pressure relief, safe and reliable driving brake performance, rapid response, and braking distance less than 5m, which meets the requirements in coal mine.