分析了球磨机等大惯量设备难于起动的原因,指出加装液力偶台器使起动过程分为两步,既可提高电机起动载荷的能力而又使载荷降低了起动力矩,因而可降低电机功率,获得明显的技术经济效益。 The reasons why the large inertia device such as ball mill is difficult to start are analyzed. It is pointed out that the hydraulic coupling device can make the starting process be divided into two steps, which not only can improve the ability of motor starting load but also reduce the starting torque of load, , Access to significant technical and economic benefits.