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Proper inspection of wire ropes can eliminate safety hazards
2022-12-15
Wire rope is a crucial part of the crane operation industry, any mistake is easy to lead to a major accident! Therefore, lifting operators must carefully check the wire rope, does not meet the requirements will be scrapped, to ensure the smooth operation. There are many ways to check wire ropes. Let's take a look at it with Xiaobian.
1. Inspection method The wire rope inspector measures the diameter of the wire rope with a caliper. The measurement method is the two outside diameters of the wire rope. The middle section is a measuring point every 100m, and two points are measured before and after 1m. Write down the minimum diameter, compare with the new wire rope factory measuring diameter, change the measuring point every month, do monthly fixed, do comparative analysis. The lay measurements in the strand of the wire rope are compared with those measured at the time of delivery of the new rope to determine the degree of looseness. 2. Check components for safety General position inspection should pay attention to check the wire rope movement and its beginning and end fixation; Take care to check the section of rope that passes through or around the block, especially any part of the rope that passes around the block under load; Pay attention to check the rope section of the balancing pulley; Watch out for rope segments that may cause wear on a part of the machine; Pay attention to rope segment rust, corrosion and fatigue, excessive corrosion of the wire rope should be scrapped in time. Rope head check: rope head fixed joint is safe and reliable, it is very important for the safety of lifting machinery. The rope end shall be checked by the wire rope leading from the fixed end. Fatigue fracture or corrosion of this part is very dangerous. The fixed device itself should also be checked for deformation or wear; For end fixtures using pressed or forged loops, check for cracks and the possibility of sliding between the wire rope and the loops; Inspect detachable wedges, rope clamps, platelets and other equipment for wire breakage and corrosion inside and at the end of the rope to ensure that the ends are connected together. 3. Security check period Check daily. It is the duty of the crane operator to inspect as many visible parts of the wire rope as possible in his daily work so that damage and deformation can be detected in a timely manner and the competent authorities can be notified in a timely manner for treatment. Personnel responsible for regular safety inspection: at least once a month, the safety inspection shall be carried out on the wire rope for general lifting machinery and hoisting and binding operations. The steel wire rope used by the crane at the construction site should be inspected at least once a week. Supervisors should use wire ropes to lift lifting machines with hot metals, acid solutions, inflammable and explosive substances and carry out safety checks at least twice a week to prevent lifting accidents. |
