FIELD: machine building.
SUBSTANCE: device for fan switching on consists of driving shaft. Also, the device is equipped with a driven disk rigidly connected with a driven shaft freely entering into an axial orifice of the driving shaft facilitating axial transfer and rotation. A ball bearing is secured on a free end of the driven shaft and is connected with a sensor made of material with a shape memory effect. The sensor has a shape of a stepped bellows. A spring is installed between the driven and driving disks. Ends of pulleys connected to hubs are opposite to each other and are made in form of helical gearing.
EFFECT: increased efficiency of operation of device and simplified design of fan drive.
2 dwg
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