刮板输送机在重载下启动难是影响工作面生产的主要问题之一。许多国家为此从各个不同角度进行了研究,以寻求在不增大电动机容量情况下,来增大启动扭矩。由于液力传动具有防止电机过载、减少链子承受的动负荷,在多电机传动中使电机负荷分配趋于均匀等一系列优点,故至今仍为大多数国家所采用。液力偶合器的缺点是与交流鼠 Scraper conveyor start under heavy load is difficult to affect the production of the face of one of the major problems. To this end, many countries have studied from various angles to seek to increase the starting torque without increasing the motor capacity. As the hydraulic transmission has to prevent the motor overload, reduce the dynamic load on the chain, the motor load distribution in the motor tends to even a series of advantages, it is still used in most countries. The disadvantage of a fluid coupling is with an AC rat