METHOD FOR MONITORING A CHAIN HOIST

Abstract: a method for monitoring a chain hoist having an electric drive motor which is connected on the output side, via a friction clutch, to a transmission, wherein, via a sensor, a speed of the transmission is sensed, and the sensed speed of the transmission is compared with an operating speed of the drive motor by means of a control device. in order to achieve safe and efficient operation of the chain hoist, a vertical position of the load handling device of the chain hoist is also determined by means of the control device. the invention also relates to a chain hoist having a control device which is designed and configured to carry out the method according to the invention.

Inventor(s): Oliver MOLL, Torsten SATTLER

CPC Classification: B66D3/26 (CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS (winding or unwinding ropes or cables for feeding or storage purposes ; rope or cable winding or unwinding mechanisms for lifts ))

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