Non-asbestos brake ring of Nanjing Crane Motor Factory was rated as green product
Application of non-asbestos brake ring for electric hoist conical rotor motor Asbestos high temperature volatile matter is a carcinogen. According to the trend of environmental protection, it is an inevitable trend that the electric hoist cone rotor motor is suitable for asbestos brake ring. From the 2009-2011 three-year interval, Nanjing Jiangling Electromechanical Group Co., Ltd. spent three years using non-asbestos brake rings for electric hoist conical rotor motors instead of asbestos brake rings for braking performance, wear and noise. In other aspects of performance testing, new products are currently on the market. The reaction was good.
Non-asbestos brake ring application test scheme Wire rope electric hoist cone rotor motor brake principle The brake part consists of a pressure spring mounted on the motor, a brake ring on the fan brake wheel and a motor rear end cover. After the motor is energized, radial electromagnetic force and axial electromagnetic force are simultaneously generated between the tapered stator and the rotor. The axial electromagnetic force overcomes the frictional resistance of the displacement of the rotor shaft and the static frictional resistance between the braking surfaces, and overcomes the elastic resistance of the helical compression spring, so that the brake ring on the fan brake wheel and the rear end cover of the motor are opened. The motor can rotate freely; when the power is off, the axial electromagnetic force disappears, the spring return work causes the rotor to move axially toward the big end of the cone, the brake ring of the fan brake wheel presses the rear end cover, and the friction torque forces the motor to stop quickly. Turn to brake.
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