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Lifting arm assembly of ship crane and ship crane

A boom and crane technology, applied in the field of boom components and ship cranes, can solve problems such as limited operating conditions and single functions, and achieve the effect of expanding operating conditions and wide applicability

Active Publication Date: 2016-03-02
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the functions of the folding-arm crane and the straight-arm crane in the prior art are relatively single and their respective applicable operating conditions are limited, the embodiment of the present invention provides a boom assembly of a ship crane and a ship crane

Method used

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  • Lifting arm assembly of ship crane and ship crane
  • Lifting arm assembly of ship crane and ship crane
  • Lifting arm assembly of ship crane and ship crane

Examples

Experimental program
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Embodiment 1

[0025] An embodiment of the present invention provides a boom assembly of a ship crane. The ship crane includes a crane turntable and a boom assembly. See figure 1 , the boom assembly includes the main boom frame 1, the secondary boom frame 2, the primary oil cylinder 3, the secondary oil cylinder 4, the secondary hook 5, the main hook 6, the guide hook device 7, the main hoist wire rope 8, and the main hoist guide rope pulley block 9. Secondary hoisting wire rope 10, and secondary hoisting guide rope pulley block 11.

[0026] In this embodiment, the crane turntable ( figure 1 not shown) is connected with the bottom end of the main arm frame 1. The secondary boom 2 is hinged on the top of the main boom 1 . The cylinder portion 31 in the primary cylinder 3 is hinged at the bottom of the main boom 1 , and the piston rod portion 32 in the primary cylinder 3 is hinged at the middle of the cylinder portion 41 in the secondary cylinder 4 . The cylinder part 41 in the secondary oi...

Embodiment 2

[0046] An embodiment of the present invention provides a ship crane, and the ship crane includes a crane turntable and a boom assembly as shown in the first embodiment.

[0047] In the embodiment of the present invention, the secondary hook is set on the secondary boom, and the primary and secondary oil cylinders are used to drive the secondary boom to unfold to realize the function of the folding arm crane. By setting the main hook on the primary boom, And use the first-level oil cylinder and the second-level oil cylinder to pull the secondary boom back to realize the function of the main boom crane. The functions of two kinds of cranes are integrated on one ship crane, which expands the applicable operating conditions of the ship crane and has wide applicability. .

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Abstract

The invention discloses a lifting arm assembly of a ship crane and the ship crane, and belongs to the technical field of ships. The lifting arm assembly comprises a primary arm rest, a secondary arm rest, a primary oil cylinder, a secondary oil cylinder and a secondary lifting hook. The secondary arm rest is hinged to the top end of the primary arm rest. The oil cylinder part of the primary oil cylinder is hinged to the bottom end of the primary arm rest. The piston rod part of the primary oil cylinder is hinged to the middle portion of the oil cylinder part of the secondary oil cylinder. The oil cylinder part of the secondary oil cylinder is hinged to the middle portion of the primary arm rest. The piston rod part of the secondary oil cylinder is hinged to the middle portion of a secondary lifting arm. The lifting arm assembly further comprises a primary lifting hook, a hook guide device, a primary lifting steel wire rope, a primary lifting rope guide pulley set, a secondary lifting steel wire rope and a secondary lifting rope guide pulley set. The primary lifting rope guide pulley set, the secondary lifting rope guide pulley set and the hook guide device are all arranged on the primary arm rest. The lifting end of the primary lifting steel wire rope is wound around the primary lifting rope guide pulley set and the hook guide device to be connected with the primary lifting hook. The lifting end of the secondary lifting steel wire rope is wound around the secondary lifting rope guide pulley set and the secondary lifting arm to be connected with the secondary lifting hook. The lifting arm assembly is high in applicability.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a boom assembly of a ship crane and the ship crane. Background technique [0002] Ship cranes are machinery used for lifting, loading and unloading cargo of ships transported by sea. Ship cranes are divided into folding-arm cranes and straight-arm cranes according to their structural forms. The boom of the folding-arm crane is folded when not in use, and stretched when in use, which has the characteristics of flexibility and convenience, but the load capacity is poor; the boom of the straight-arm crane has always been set vertically, which has overload Ability is strong, but not flexible enough. Both the knuckle-arm crane and the straight-arm crane have relatively single functions, and their respective applicable operating conditions are limited. Contents of the invention [0003] In order to solve the problem that the functions of the folding-arm crane and the straight-arm cr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/16
Inventor 王小洋张军福魏巍
Owner WUHAN MARINE MACHINERY PLANT