| 摘要 |
PURPOSE: A cooling device for a rolling system is provided to prevent a rotary shaft and a coupling shaft from being twisted by covering a joint part of a transmission shaft and a rotary shaft. CONSTITUTION: A cooling device(100) for a rolling system comprises a motor(110), a rotary shaft(120), a transmission shaft(130), and a cooling fan(140). The rotary shaft is coupled with the motor. The transmission shaft engages with the rotary shaft and delivers the torque. The cooling fan is coupled with the transmission shaft and rotates. The cooling fan discharges the air. The insert body projected from the rotary shaft is inserted into an insertion hole(131) formed in the transmission shaft.
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