Hoist with head sheave overhauling and locking device
A locking device, hoist technology, applied in elevators, transportation and packaging, elevators in buildings, etc., can solve the problems of inability to confirm the operation of maintenance personnel, safety accidents, and easy misoperation, etc. Powerful and safe
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[0017] A hoist with a sky wheel maintenance locking device, such as figure 1 As shown, it includes the friction wheel 2 and the PLC control platform 1, the steel wire rope 9 is wound around the outer circumference of the friction wheel 2, one end of the steel wire rope 9 is connected to the lifting container 6 around the upper sky wheel 7, and the other end of the steel wire rope 9 is wound around the lower sky wheel 8 and the counterweight 3 The lifting container 6 and the counterweight 3 are connected through the tail rope 4; the PLC control platform 1 controls the start and stop of the friction wheel 2, and the PLC control platform 1 is connected to the power supply 14 through a wire, and the power supply 14 is connected to the switch sheet 13 through a wire, and the PLC The control platform 1 is also connected to the first contact 15 by a wire, and the buzzer switch 11 is connected in parallel with the buzzer 10 in series with the warning light 12. One end of the warning li...
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