此电机的电机轴两端伸出分别同一风叶和一皮带轮通过键槽和键相 配接固定；
Two ends of the motor shaft of the motor respectively extend to match and fix with an impeller inducer and a belt pulley through a key slot and a key.
本设备大皮带轮（槽轮）的固定采用无键联胀套联结。
The fixation adoption distends cover with no saw(tough wheel)of large belt of equipment.
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