Composition and application of electric hoist

The electric hoist is a kind of light and small lifting equipment, which adopts electromechanical integration design. It is powered by the sliding contact line, operated by the handle, and controlled by the control circuit in the control box to control the lifting motor and walking motor of the electric hoist, so as to achieve the purpose of lifting equipment. It is composed of mechanical and electrical parts. The mechanical part includes: reducer, lifting motor, traveling motor, traveling wheel, cargo breaker, drum device, hook device, coupling, etc; The electrical part includes: power switch (iron box switch), power supply cable, safety slide wire, collector, lifting limiter, control box, etc.

Electric hoist structure reducer: three-stage fixed shaft helical gear rotating mechanism is adopted. The gear and gear shaft are made of heat-treated alloy steel. The box and cover are made of cast iron, tightly assembled and well sealed. The reducer is a part, which is convenient for loading and unloading.

Control box: It adopts a device that can cut off the main circuit in case of emergency, and is equipped with up and down travel protection fire stop limiter.

The safe operation of the electric hoist is ensured. Electrical components have long service life and reliable use.

Wire rope: GB1102-74 (6 * 37+1) X type lifting wire rope is used to ensure durability.

Conical motor: the asynchronous motor is braked by the conical rotor with large starting torque, without additional brake. The load duration of the motor is 25%. The motor adopts class B or F insulation, and the motor protection grade is IP44/IP54.

Button switch: It is light and convenient to operate by hand, including rope control and wireless remote control.

The utility model has the advantages of small volume, light weight, simple operation, convenient use, etc.

It can be separately installed on electric single beam, double beam, cantilever and gantry crane.

The lifting capacity is generally 0.3-80t, and the lifting height is 3-30m. It is composed of motor, transmission mechanism and drum or chain wheel, and can be divided into wire rope electric hoist and ring chain electric hoist. The chain electric hoist is divided into two types: imported and domestic; Wire rope electric hoist is divided into single speed lifting and double speed lifting; Micro electric hoist, winch, multi-function hoist.