Electric hoist
Introduction to electric hoist products
Electric hoist is a special lifting equipment installed on overhead cranes and gantry cranes. It has the characteristics of small volume, light weight, simple operation, and convenient use, and is used in industrial and mining enterprises, storage terminals, and other places.
Composition structure of electric hoist
The lifting capacity is generally 0.1-80 tons, and the lifting height is 3-30 meters. Composed of an electric motor, transmission mechanism, and a drum or sprocket, it is divided into two types: wire rope electric hoist and ring chain electric hoist. The electric chain hoist is divided into two types: imported and domestically produced; The wire rope electric hoist is divided into single speed lifting and double speed lifting; Micro electric hoist, winch, multifunctional hoist. The reducer, lifting motor, running motor, flame arrester, cable sliding wire, drum device, hook device, coupling, soft cable current introducer, etc. integrate power and braking force.
Electric hoist related parameters
Lifting capacity: 0.25t-60t
Lifting height: 3m-30m
Work level: M3
Running speed: 20 (30) m/min
Lifting speed: 8m/min.
Installation and use of electric hoists
Electric hoists are generally installed on single beam cranes, bridge cranes, gantry cranes, and suspension cranes. With slight modifications, it can also be used as a winch. Therefore, it is an essential machinery for improving labor efficiency and working conditions.
Operating conditions of electric hoist
Environmental temperature: -20 ℃~+40 ℃ Working system: Intermediate JC25% Heavy level: JC40%.
Characteristics of electric hoists
The advantage of wire rope electric hoist is its small length and size, and the motor is installed inside the drum of the electric hoist. The electric hoist has a compact structure, and the electric hoist with the motor axis perpendicular to the drum axis adopts a worm gear transmission device. Its disadvantages are: large length, large width, bulky structure, low mechanical efficiency, and difficult processing. The hydraulic system adopts dual control, and the overflow regulating valve and magnetic contact pressure gauge can accurately control the pressure. The electrical control department has adopted low-voltage control to increase the safety of the control system, and there are no manufacturers producing products with this structural type anymore.
The use of electric hoists can be said to be very extensive, but there may be very few personnel who can correctly utilize the advantages of electric hoists for operation. I suggest that everyone should have a better understanding of the characteristics and knowledge of electric hoists, so that they can be better used.
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