Special permanent magnet direct drive motor for mining mills

Compared with the traditional "asynchronous motor+gearbox" drive structure, permanent magnet direct drive motors have the advantages of large output torque, high system efficiency, fast dynamic response, and strong resistance to impact and vibration, greatly improving the reliability of system operation and effectively reducing maintenance costs. Currently, they have been successfully applied in industries such as leather belt conveyor, ore crushing, and steel metallurgy, with broad market prospects.
The permanent magnet direct drive motor that was taken offline this time was independently developed by CRRC Zhuzhou Electric Machinery Co., Ltd. It is mainly loaded on large mining electric shovel hoists and used for heavy-duty shovel operations under various harsh working conditions, transferring open-pit mineral deposits to electric wheel trucks for transportation out of the mining area. The motor has a power of 1400 kilowatts and can output over one million Newton meters of torque at an ultra-low speed of just over 10 revolutions per minute. It can easily lift 300 tons of heavy objects, withstand vibration impacts of over 10 times the acceleration of gravity, and withstand axial impacts when the vehicle body tilts