What are the common faults of gantry cranes?
Gantry crane is a common lifting equipment, which is widely used for lifting materials in docks, material yards, freight yards and other occasions. In the process of use, some faults are often encountered. If the faults are not dealt with in time, work may be delayed and safety hazards may be caused. Therefore, in order to ensure the safe use of Gantry crane and bring out good benefits, attention should be paid to the common failures of Gantry crane.
Gantry crane’s main beam is equipped with legs at both ends, which resemble a door frame, and can run along a dedicated track on the ground with longitudinal loads. It has the characteristics of strong versatility, wide application, high utilization rate, etc., which can greatly improve production efficiency and reduce human labor intensity.
Gantry crane common failures include:
1, wire rope failure
The wire rope is an important component of the crane. During operation, the force of the wire rope is more complicated, which will produce extrusion stress, bending stress, tensile stress, etc., and will also be subjected to extrusion stress and bending when passing through pulleys and drums. Stress, so it is difficult to accurately calculate the force of the wire rope. When passing through the drum and pulley, the wire rope will bend repeatedly, and when the number of windings increases, the wire rope is prone to wear. In addition, wire rope failures are also related to maintenance, work intensity, and whether the diameter of the reel is appropriate.
2, reducer gear failure
The reducer is an important transmission structure in the crane. When working, the reduction gear can adjust the running motor to an appropriate speed and generate greater torque. However, in the process of torque transmission, gears are prone to failures, such as gear deformation, breakage, and fatigue pitting on the gear surface. The possible causes of these failures are: after the gear fatigue cracks, the gear is broken due to excessive load; when the load is large, the friction force of the transmission gear is too large, which leads to the plastic deformation of the teeth; the tooth surface is more dusty and clean If the effect of the agent is not good, it will also cause the tooth surface to wear.
3, wheel, track failure
Crane gnawing rail is a common fault. Rail gnawing will reduce the service life of the crane and may lead to safety accidents in severe cases. The cause of the crane's rail gnawing may be: the rail installation quality of the cart is not good enough, and the balance is not up to the standard; the height difference between the two rails is too large; the driving wheel and the driven wheel of the cart are not synchronized, etc., will cause the rail gnawing failure. .
When using Gantry crane, pay attention to the inspection work, eliminate the fault in time, extend the service life of the crane, and ensure the safety of the operation.