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　　Hook group is made of hooks. It is composed of cross beams, end surface bearings, hanging racks and other parts. There are two types of structural types: long hook and short hanger and short hook and long hanger.

　　The hook set of long hooks and short hangers is to install the hook and pulley on the same shaft. The hook uses a long hook for a squeezing type.

　　The short hook and long hanger hook group is a device that installs the hook on the cross beam, and the pulley shaft is connected to the cross beam through the hanger to form an up and down device. The hook adopts a stop-type short hook.

　　With the lifting weight of the long hook and short hanger hook group, the effective lifting height of the short hook and long hanger hook group, is greater. This is the advantage of the long hook and short hanger hook set. But its lateral size is even more obvious, especially when it is large tonnage. In addition, when the ratio of the double pulley set is odd, the balance wheel needs to be installed on the hanging rack, and it is difficult to set the balance wheel on the long hook and short hanger, so the long hook and short hanger hook set is only suitable for cranes with small tonnage and pulley sets with even plurality.

　　Since the short hook and long hanger hook set does not have the above disadvantages, it is widely used.

　　For hook sets of bridge cranes operating at room temperature, they should be inspected and refueled every three months, and the cranes used for pouring should be lubricated once a day. In addition, regular disassembly inspections should be carried out according to the specific use situation.

　　Hook group is made of hooks. It is composed of cross beams, end surface bearings, hanging racks and other parts. There are two types of structural types: long hook and short hanger and short hook and long hanger.

　　The hook set of long hooks and short hangers is to install the hook and pulley on the same shaft. The hook uses a long hook for a squeezing type.

　　The short hook and long hanger hook group is a device that installs the hook on the cross beam, and the pulley shaft is connected to the cross beam through the hanger to form an up and down device. The hook adopts a stop-type short hook.

　　With the lifting weight of the long hook and short hanger hook group, the effective lifting height of the short hook and long hanger hook group, is greater. This is the advantage of the long hook and short hanger hook set. But its lateral size is even more obvious, especially when it is large tonnage. In addition, when the ratio of the double pulley set is odd, the balance wheel needs to be installed on the hanging rack, and it is difficult to set the balance wheel on the long hook and short hanger, so the long hook and short hanger hook set is only suitable for cranes with small tonnage and pulley sets with even plurality.

　　Since the short hook and long hanger hook set does not have the above disadvantages, it is widely used.

　　For hook sets of bridge cranes operating at room temperature, they should be inspected and refueled every three months, and the cranes used for pouring should be lubricated once a day. In addition, regular disassembly inspections should be carried out according to the specific use situation.