Introduction and installation method of Electric Chain Hoist
December 27, 2023
Introduction to chain hoist
The Electric Chain Hoist makes up for the disadvantages of the wire rope electric hoist being larger and bulkier. The electric chain hoist is composed of a motor, a transmission mechanism and a sprocket. The biggest difference from the wire rope electric hoist is that the wire rope is replaced by a chain. The lifting capacity is generally 0.5 to 60 tons, and the lifting height is 3 to 120 meters.
The Electric Chain Hoist retains the lightness and convenience of the hand chain hoist, but also improves the manual operation and slow lifting speed of the hand chain hoist. It combines the advantages of the hand chain hoist and the electric hoist, and uses a disc brake motor as the The power cycloidal needle reducer reduces the speed and the electric chain hoist has the characteristics of compact structure, small size, light weight, high efficiency, easy use, reliable braking and simple maintenance.
The tonnage of electric chain hoist: 240kg, 300kg, 0.5t, 1t, 2t, 3t, 5t, 10t, 20t, 25t, 30t, 35t, 50t, 60t, Shanghai can already achieve the maximum tonnage of 100 tons. The speed of chain electric hoist: two-speed, single speed, variable frequency start, two-speed variable frequency start, domestic technology has been able to meet the manufacturing requirements of two-speed variable frequency electric hoist.
1. Brakes of electric chain hoist: pound magnetic brake, cone rotor brake, double brake (pound magnetic brake + mechanical brake).
2. Electric chain hoists are divided into two types according to the lifting methods: forward lifting and reverse lifting, which are specially used for stage lifting.
3. Characteristics of the electric chain hoist: advanced performance and structure, small size, light weight, reliable performance, and easy operation. The electric chain hoist has a wide range of applications and is very convenient for lifting heavy objects, loading and unloading, repairing equipment, and lifting goods. The electric chain hoist can also be installed on suspended I-beams, curved tracks, jib crane guide rails and fixed lifting points to lift heavy objects.
4. The power supply for electric chain hoists is generally 110V-690V, and the domestic standard is generally 380V, 50HZ. Other countries/regions have different requirements for power supply, voltage and safe voltage used.
5. The control switch voltage of the electric chain hoist is 24V/36V (if the control switch is not transformed by the built-in transformer, it will cause personal injury, so the control voltage of most electric chain hoists is 24/36V).
The standard configuration of the electric chain hoist must include a limit switch and a phase sequence failure protector.
installation method
First, the chain box needs to be installed;
Secondly, connect the power cord
When connecting the power cord, the power must be cut off in advance. At the same time, the ground wire should be well grounded, otherwise the operator may feel an electric shock when touching any part of the hoist or chain.
Third, lubricate the load chain of the electric chain hoist
The degree of lubrication 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 arrangement of the chain
For electric chain hoists with multiple rows of chains, ensure that the lower hook frame is not turned over. If flipped, return it to normal, making sure the chain's welds line up. Never hang a load on a hoist with a twisted chain.
Finally, check the operating voltage
Since the electric chain hoist is equipped with the voltage specified by the user or a higher voltage (only for dual voltage), such as 230/460V, when it leaves the factory, you need to check the wiring and confirm whether it meets the requirements of the power supply voltage. If it does not comply, please refer to the instruction manual and make corrections to meet the necessary working voltage requirements.
