Introduction to crane hook group types and their characteristics
2026-03-04 02:18:18
The crane hook set is the combination of the sliding pulley hooked to the pulley set. There are two types of hook sets: long type and segment type.
The long hook group uses an ordinary short hook with a shorter hook handle, which is supported on the hook beam, and the pulley is supported on a separate pulley shaft. Its height is larger, which reduces the effective lifting height. Segment-type hook sets used to use long hooks. The pulleys of this hook set are directly installed on the hook beam, and the height is reduced, but they can only be used for double-rate pulley sets. Because the balancing wheel of the magnification pulley set is at the bottom, this balancing pulley can only be installed with a long hook set. The short hook group currently produced is similar in structure to the long hook group, but has the characteristics of the short type. Short hook sets can only be used with smaller pulley block magnifications. When the magnification is large, the number of pulley blocks increases, and the hook beam is too long, so the bending moment is too large, making the hook too heavy. Therefore short hook sets are only suitable for smaller cranes. In order to facilitate lifting, the hook should be able to rotate around the vertical axis and the horizontal axis. Therefore, the hook is supported on the hook beam with a thrust bearing, and the nut at the tail of the hook is pressed against this thrust bearing. The nut should have a reliable anti-loosening device, and the thrust bearing should have a dust-proof device. In order to allow the hook to rotate around the horizontal axis, the shaft end of the long hook beam is made into an annular groove where it matches the fixed axis baffle, allowing the beam to rotate; on the contrary, the shaft end of the upper pulley shaft is a flat notch, which does not allow the pulley shaft to rotate.The crane hook set is the combination of the sliding pulley hooked to the pulley set. There are two types of hook sets: long type and segment type.
The long hook group uses an ordinary short hook with a shorter hook handle, which is supported on the hook beam, and the pulley is supported on a separate pulley shaft. Its height is larger, which reduces the effective lifting height. Segment-type hook sets used to use long hooks. The pulleys of this hook set are directly installed on the hook beam, and the height is reduced, but they can only be used for double-rate pulley sets. Because the balancing wheel of the magnification pulley set is at the bottom, this balancing pulley can only be installed with a long hook set. The short hook group currently produced is similar in structure to the long hook group, but has the characteristics of the short type. Short hook sets can only be used with smaller pulley block magnifications. When the magnification is large, the number of pulley blocks increases, and the hook beam is too long, so the bending moment is too large, making the hook too heavy. Therefore short hook sets are only suitable for smaller cranes. In order to facilitate lifting, the hook should be able to rotate around the vertical axis and the horizontal axis. Therefore, the hook is supported on the hook beam with a thrust bearing, and the nut at the tail of the hook is pressed against this thrust bearing. The nut should have a reliable anti-loosening device, and the thrust bearing should have a dust-proof device. In order to allow the hook to rotate around the horizontal axis, the shaft end of the long hook beam is made into an annular groove where it matches the fixed axis baffle, allowing the beam to rotate; on the contrary, the shaft end of the upper pulley shaft is a flat notch, which does not allow the pulley shaft to rotate.The crane hook set is the combination of the sliding pulley hooked to the pulley set. There are two types of hook sets: long type and segment type.
The long hook group uses an ordinary short hook with a shorter hook handle, which is supported on the hook beam, and the pulley is supported on a separate pulley shaft. Its height is larger, which reduces the effective lifting height. Segment-type hook sets used to use long hooks. The pulleys of this hook set are directly installed on the hook beam, and the height is reduced, but they can only be used for double-rate pulley sets. Because the balancing wheel of the magnification pulley set is at the bottom, this balancing pulley can only be installed with a long hook set. The short hook group currently produced is similar in structure to the long hook group, but has the characteristics of the short type. Short hook sets can only be used with smaller pulley block magnifications. When the magnification is large, the number of pulley blocks increases, and the hook beam is too long, so the bending moment is too large, making the hook too heavy. Therefore short hook sets are only suitable for smaller cranes. In order to facilitate lifting, the hook should be able to rotate around the vertical axis and the horizontal axis. Therefore, the hook is supported on the hook beam with a thrust bearing, and the nut at the tail of the hook is pressed against this thrust bearing. The nut should have a reliable anti-loosening device, and the thrust bearing should have a dust-proof device. In order to allow the hook to rotate around the horizontal axis, the shaft end of the long hook beam is made into an annular groove where it matches the fixed axis baffle, allowing the beam to rotate; on the contrary, the shaft end of the upper pulley shaft is a flat notch, which does not allow the pulley shaft to rotate.Inquiry
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