Electric hoist is usually installed on overhead crane, gantry crane and other suspension cranes. The lifting capacity is generally 0.3 ~ 80 tons, lifting height of 3-30 meters. It is composed of motor, transmission mechanism and drum or chain wheel, and is divided into wire rope electric hoist and chain electric hoist.
Structure and characteristics of electric wire rope hoist: the hoist adopts mechanical and electrical integration design, and can press steel wire rope of different specifications by changing different molds, which is easy to control and safe; it is convenient to check, install and maintain the motor.
Application fields: lifting, hauling, loading and unloading heavy objects, oil tank inversion welding, such as the installation and movement of various large and medium-sized concrete, steel structure and mechanical equipment, which are applicable to the civil engineering and bridge construction of construction and installation companies, factories and mines, electric power, ships, automobile manufacturing, construction, roads, bridges, metallurgy, mines, slope tunnels, shaft governance and protection and other infrastructure construction projects mechanical equipment.
Electric Chain Hoist
The electric chain hoist makes up for the bulky volume of the electric wire rope hoist. The electric chain hoist consists of motor, transmission mechanism and chain wheel. The biggest difference between the electric chain hoist and the electric wire rope hoist is that the wire rope is replaced by the chain. The lifting capacity is generally 0.5-60 tons, and the lifting height is 3-120 meters.
The chain electric hoist retains the light and convenient features of the hand chain block, and improves the manual operation of the hand chain hoist, slow lifting speed and other shortcomings. The advantages of the hand chain hoist and the electric hoist are combined. The disc brake motor is used as the power cycloidal pin reducer to reduce the speed. The chain electric hoist is compact in structure, small in volume, light in weight, high in efficiency, convenient in use and reliable in braking .
Features of electric chain hoist: advanced performance and structure, small volume, light weight, reliable performance, convenient operation, wide application range of electric chain hoist, which is very convenient for lifting heavy objects, loading and unloading work, maintenance equipment, and lifting goods. The electric chain hoist can also be installed on suspended I-beam, curve track, swing arm lifting guide rail and fixed lifting point to lift heavy objects.
The standard configuration of electric chain hoist must include limit switch and phase sequence phase break protector.
Installation Method of Electric Chain Hoist
First, install the chain box;
Second, connect the power cord. When connecting the power cord, the power must be cut off in advance. At the same time, the ground wire shall be well grounded, otherwise the operator may feel electric shock when touching any part of the hoist or chain.
Third, lubricate the load chain of the chain hoist. The lubrication degree of the chain is an important factor affecting the service life of the load chain. Timely and effective lubrication of the load chain can ensure the effective service life of the chain.
Fourth, check the chain arrangement. For the electric chain hoist with multiple chains, ensure that the lower hook frame is not turned over. If it is turned over, return it to normal state, and make sure that the welding ports of the chain are arranged in rows. Do not hang the load on the hoist with twisted chain.
Finally, check the working voltage. When the chain hoist is delivered from the factory, it is equipped according to the voltage or higher voltage specified by the user (only for dual voltage). For example, 230 / 460V, it is necessary to check the wiring and confirm whether it meets the requirements of power supply voltage. If not, please refer to the manual for correction to meet the necessary operating voltage requirements.
Electric Wire Rope Hoist
The main components of the electric wire rope hoist include: reducer, operating mechanism, drum device, hook device, coupling, soft cable current introducer, limiter, etc. Wire rope electric hoist is one of the lifting equipment commonly used in factories, mines, ports, warehouses, freight yards, stores, etc. it is the necessary machinery to improve labor efficiency and labor conditions.
Features of Wire Rope Hoist
Light weight, small volume, compact structure, various specifications, stable operation, simple operation and convenient use. They can be used on the same plane to make straight, curved and circulating overhead rails, or on the electric single beam, manual single beam, bridge, suspension, cantilever, gantry and other cranes with I-beam as the rail. Electric hoist is widely used in factories, warehouses, docks, power stations, logging fields and other occasions. It is the most ideal lifting equipment for lifting and transporting goods.
Applications of Electric Wire Rope Hoist
- It is used in machine shop and repair shop to install equipment and lift heavy objects.
- It is used for material warehouse and goods yard to lift and stack materials;
- It is used for hoisting prefabricated components and cement pipes in construction industry and pipeline operation.
- It is used for lifting heavy objects in light textile industrial warehouses, hospitals, stores and food factories.
- It is used to lift heavy objects at River terminals.
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