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Operating principle of electric hoist


Basic principle: Electric hoist is a small and lightweight lifting device, which is equipped with a motor, a reducer, a reel and a brake in a box. It can be fixed independently at a high place and vertically lifts heavy objects. It can also be hung on a trolley that travels along a monorail to form a monorail crane to lift heavy objects. It can also form a double-beam simple bridge crane to lift heavy objects. The lifting weight ranges from 5 to 100 t, the lifting height ranges from 6 to 30 1 TI, and the lifting speed is 4.5 to 10 m/rain. Operation essentials: The operator controls all the movements of the electric hoist on the ground through the hanging electrical button box. When the conical rotor motor is not energized, the brake wheel is pressed against the friction disc under the action of the spring force, and the fan wheel and the rotor are made. The lifting mechanism does not work; when the cone rotor motor is energized, the electromagnetic field generates an axial pulling force on the rotor to overcome the resistance generated by the spring, so that the braking wheel is separated from the friction disc, and the rotor shaft drives the reel through the gear of the reducer The device works one--lifting heavy objects and dropping heavy objects. After the trolley motor is energized, the electric trolley wheel is driven to run along the I-beam track, so that the electric hoist reaches different positions to meet the needs of lifting work.