The electric hoist and its accessories are the main part of the lifting mechanism of the single beam crane. When lifting the load, the crooked pull and the crooked lift will produce the following hazards to the electric hoist and its accessories.
1. Harm to motor
When the load of the inclined crane is lifted off the ground and suspended in the air, the load will inevitably swing, which will cause the load to produce centripetal force and increase the load of the motor, especially when the swing direction is parallel to the running direction of the trolley, the load will repeatedly act on the thrust and resistance of the electric trolley through the swing, so that the motor will drive the load of the trolley when large and small. That is, the current through the motor is large and small, light to reduce the speed of the motor, its own overheating, noise increases and even abnormal sound, heavy may blow the fuse or damage the motor coil.
2. Damage to wire rope
The friction between the wire guide and the wire rope increases due to the compression between the wire rope guide and the wire rope, resulting in the wear and extrusion deformation of the wire rope. When the rope guide is damaged, the wire rope is easy to disgorge disorder, reduce its service life.
3. Wear of the hook When the load of the inclined crane is in the air, the load is bound to swing. When the swing amplitude is large, the sling loop chain or the rope sleeve of the sling wire rope will produce repeated slip phenomenon in the dangerous section of the hook hook hanging. When decoupling, the rope will also produce friction with the hook, over time will accelerate the dangerous section of the hook wear, reduce its service life.
Post time: Nov-18-2022