Electric hoist
Electric hoist is abbreviated as electric hoist, which is a kind of light and small lifting equipment. Electric hoist has the characteristics of small size, light weight, simple operation and convenient use. It is used in industrial and mining enterprises, storage docks and other places. The lifting weight is generally 0.1 to 80 tons, and the lifting height is 3 to 30 meters. It is composed of a motor, a transmission mechanism and a drum or sprocket, and is divided into two types: steel wire rope and endless chain. Electric chain hoists are divided into imported and domestic ones; wire rope electric hoists are divided into CD1 and MD1 types; miniature electric hoists, hoists, and multi-function hoists. It is usually driven by a squirrel-cage conical rotor motor with its own brake (or a cylindrical rotor motor equipped with an electromagnetic brake). Most electric hoists are operated by people using buttons to follow the ground, or they can be operated in the driver's cabin or wired (wireless) remote control.
Electric hoist Lifting weight: 0.25t-20t
Lifting height of electric hoist: 6m-30m
Electric hoist working level: M3
Electric hoist operating speed: 20(30)m/min
Electric hoist lifting speed: 8m/min
The main structure of the electric hoist: reducer, operating mechanism, reel device, hook device, coupling, flexible cable current introducer, stopper. The motor adopts a conical rotor motor, which integrates power and braking force.
Electric hoist installation and use: hoist single beam, bridge crane, gantry crane, suspension crane. It can also be used for hoisting. Therefore, it is an essential machine for improving labor efficiency and improving working conditions.
Electric hoist operating conditions:
Environmental temperature: -20℃～+40℃
Work system: Intermediate JC 25%
Heavy: JC40%
When the lifting capacity of the electric hoist with the intermediate working system is reduced by 30%, it is an electric hoist with the heavy working system JC40%.
Heavy duty work system JC40% electric hoist is used for heavy work and the load is often at the rated value or requires a higher safety factor. Electric hoist structure reducer: adopts three-stage fixed-axis helical gear rotation mechanism, gears and gear shafts are made of heat-treated alloy steel, and the box body and box cover are made of high-quality cast iron, with tight assembly and good sealing. The reducer is a self-contained part, which is extremely convenient for loading and unloading.
Control box: It adopts a device that can cut off the main circuit in an emergency, and is equipped with an up and down stroke to protect the fire limiter. Ensure the safe operation of the electric hoist. The electrical components have a long life and are reliable in use.
Steel wire rope: GB1102-74 (6*37+1) X-type lifting wire rope is adopted, which guarantees durability.
Cone traveling motor: The hoisting motor adopts a large starting torque conical rotor to brake the asynchronous motor, and no external brake is required. The motor load duration rate is 25%, the motor adopts B or F insulation, and the motor protection class is IP44/IP54.
button switch: hand-operated lightly and dexterously, divided into two ways: rope operation and wireless remote control.
Electric hoist classification
The main classification of electric hoist: electric chain hoist, wire rope electric hoist, miniature electric hoist, hoist, multi-function hoist.
