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Die hanger

The English name of lifting sling is lifting sling, which refers to the device for lifting heavy objects in lifting machinery. The most commonly used lifting tools for lifting items are hooks and slings, and others include rings, lifting suction cups, clamps and forks. It is widely used in the lifting industry.
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　　The English name of lifting sling is lifting sling, which refers to the device for lifting heavy objects in lifting machinery. The most commonly used lifting tools for lifting items are hooks and slings, and others include rings, lifting suction cups, clamps and forks. It is widely used in the lifting industry.

　　Special rigging such as hooks, wire ropes, and chains are commonly used in the spreader. Lifting suction cups, clamps and forks can be used as special spreaders on the crane for a long time, and can also be used as replaceable auxiliary spreaders hanging on the hook for temporary use. They are often used in multi-cargo warehouses and yards to improve work efficiency. The spreader for grabbing bulk materials is generally a grab bucket with a jaw plate that can be opened and closed, and an electromagnetic chuck can also be used to absorb magnetic materials such as metal chips. Commonly used spreaders for lifting fluid materials are buckets and hanging tanks. Generally, molten steel or chemical solutions are discharged by tilting or bottom plugging, and fluid materials such as concrete are discharged by opening the bottom door of the hanging tank. In order to meet the daily maintenance and lifting of large machinery, some domestic sling companies have also designed some special spreaders, such as fan spreaders, tower spreaders, blade spreaders, hub spreaders, steam turbines and other non-standard spreaders. Tool.

　　(1) During the use of the spreader, if the rotation of the twist lock is inflexible or not in place, check and adjust the adjusting nut, and then check the following parts: ① Whether the tension spring of the ratchet is damaged, and if it is damaged, it should be replaced; ② Whether the transmission mechanism is stuck, if it is stuck, it is poorly lubricated, and lubricating oil (or grease) should be added to the movable connection of the transmission mechanism. If the guide pin is too tight, loosen the nut properly. If the connection is loose, the transmission tube or other rods are deformed, it should be corrected; ③ Whether the stretch of the buffer spring is too small, if it is too small, the length of the wire rope connected to the buffer spring should be shortened. (2) During use, prevent the indicator paint on the indicator plate of the spreader from falling off. Once found, it is necessary to replenish the paint with the original instruction mark in time. (3) For the steel wire rope on the spreader, it should be cleaned and lubricated with lubricating oil or grease in time, especially at the bend of the steel wire rope. (4) For the main stress-bearing components, rings, twistlocks, ear plates and rigging shackles, under normal use conditions, they should be inspected at least once every 3 months, and there must be no cracks or serious deformation. (5) For all oil cups, including the ratchet mechanism oil cup, the oil cup on the sliding bearing seat and the oil cup of the twist lock box, the main movable joints should be filled with lubricating oil in a timely manner according to the usage conditions. (6) Frequently check whether the rope clamp is loose, whether the buffer spring is overstretched, and deal with the problem in time. (7) Each type of spreader must not exceed the rated lifting capacity, and the buffer spring must not be overstretched. (8) During the hoisting process, it should be hoisted smoothly to avoid deformation due to mutual collision between the spreader and the crane or other equipment.

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