Affected by electromagnetism and structure, the rotor shaft of big length to diameter ratio high power density asynchronous motor shows low intensity and bad rigidity.
大长径比高功率密度电机受电磁及结构因素的影响，转轴的强度低，钢度差。
The utility model has the advantages of compact structure, long service life, big driving torque and small loss of driving power and small maintenance ratio and can realize the replacement of gears.
本实用新型具有结构紧凑、使用寿命长、传动扭矩大且传动功率损失小的优点，它可以实现挡位的更换，维修率小。
The utility model overcomes the shortcomings of complicated structure, easy fault, big noise, large power consumption and especially unlifelike actions in the prior art.
克服了已有技术结构复杂、容易故障、噪音大、耗电大，特别是动作不逼真的弊病。
It has the characteristics of power engine, high transmission efficiency, big traction, low fuel consumption, high adaptability, compact structure and easy operation and maintenance.
具有配套动力强劲、传动效率高、牵引力大、油耗率低、适应性强、使用维护方便等优点。
Its structure is simple, throughput is big, and power consumption is low, it is not easy to be blocked and very simple to operate and repair.
整机结构简单，处理量大，耗电低，不易堵塞，操作简单，维修方便等特点。
Its structure is simple, throughput is big, and power consumption is low, it is not easy to be blocked and very simple to operate and repair.
整机结构简单，处理量大，耗电低，不易堵塞，操作简单，维修方便等特点。
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