Jiaozuo brake

Brake adjustment system

Braking is one of the main technical key issues in the development of high-power downward conveyor belts. The energy absorbed by the brake during braking is much greater than that of the horizontal and upward conveyor belts. If only mechanical brake is used, the brake lining will wear quickly and easily cause flying accidents. The surface temperature of the brake wheel is high, and even sparks may be generated due to wear of the brake lining, which can cause explosion accidents. Excessive braking deceleration can cause material rolling. To solve these problems, this device adopts a two-stage braking scheme, which first uses hydraulic braking to reduce the speed from 1520 rpm to around 500 rpm, absorbs most of the energy, and then uses mechanical brake to stop. Equipped with an automatic adjustment system to ensure smooth braking.

The brake has four levels of braking torque, and during the braking process, an accelerometer is used to control the pneumatic operating system, automatically adjusting the braking torque to ensure smooth braking under various load conditions. When the speed drops to 1/3 to 1/4 of the rated speed, the speed detector controls the holding brake action to brake the conveyor. In the event of a sudden power outage in the mining area, hydraulic braking and mechanical holding brake can still be sequentially applied through gas and power storage devices

After feasibility and prototype laboratory tests, it has been proven that the selected technical solution is feasible, the design parameters determined by the prototype are correct, and the performance meets the original requirements. This project has successfully completed the requirements specified in the plan task book and fully meets the basic technical requirements of the up and down conveyor belt in the mining area. It can be used in conjunction with downward conveyor belts and similar equipment.