Causes of uncontrolled hoisting of chain hoist
The development direction of the chain hoist is safe, reliable, light, efficient, maintenance-free and intelligent. This type of lifting hoist belongs to light and small hoisting machinery, with large volume and wide range, flexible and convenient operation, and strong applicability. However, problems inevitably occur during use. Why does the chain hoist run out of control? In this regard, we explain the reasons for the uncontrolled lifting of the chain hoist. Chain hoist
1. Improper operation: Frequently switching on and off the starting current of the motor will lead to a shortened service life of the contactor and bury hidden dangers for the safe operation of the electric chain hoist.
2. Poor quality of contactors: The technical specifications of the main contacts of the low-quality contactors produced by some counterfeit fixed-point manufacturers are far from the relevant national standards, are easy to stick together, and cannot meet the requirements of use at all. Once the main contacts are stuck together, it will cause the chain electric hoist to run out of control.
3. The safety device is not complete: the fire breaker is an indispensable device to ensure the safety of the hoisting operation of the electric chain hoist. It can cut off the power supply of the lifting motor in time when the electric hoist reaches the set upper and lower limit after the lifting control is out of control.
4. Breakdown of control buttons: The use of unqualified control buttons is also a factor that cannot be ignored because of the uncontrolled lifting.
