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Arm tip pulley mechanism, self-dismounting method thereof and crane

A crane and pulley technology, applied in cranes and other directions, can solve the problems such as the inability to satisfy the rapid self-disassembly and folding transportation of the arm tip pulley, increase the structural weight and complexity, etc.

Active Publication Date: 2014-02-26
SANY AUTOMOBILE HOISTING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a large-tonnage crane needs to consider factors such as total weight, parameter size, structural requirements, and customer needs, if it can only be folded but not self-disassembled, or the self-disassembly of the arm tip pulley can only be achieved by adding auxiliary structures, It cannot meet the requirements of rapid self-disassembly and folding transportation of the arm tip pulley, and also increases the weight and complexity of the structure

Method used

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  • Arm tip pulley mechanism, self-dismounting method thereof and crane
  • Arm tip pulley mechanism, self-dismounting method thereof and crane
  • Arm tip pulley mechanism, self-dismounting method thereof and crane

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Embodiment Construction

[0054] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0055] see Figure 1 to Figure 11 It can be seen from the relevant drawings that the arm tip pulley mechanism 1 described in this embodiment is a device used in conjunction with the arm head 3 of the main arm 2 of the crane. Usually, the arm head 3 of the main arm 2 is provided with a pulley 31 on the arm head, Arm head lower pulley 32, upper pulley shaft 34 and lower pulley shaft 33, the two ends of lower pulley shaft 33 are provided with the auxiliary arm installation hole 331 that is used to connect auxiliary arm.

[0056]The arm tip pulley mechanism 1 described in this embodiment includes a pulley frame 12 , an arm tip pulley 11 , lifting lugs 13 and a pull plate 14 . Specifically, the pull...

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Abstract

The invention provides an arm tip pulley mechanism, a self-dismounting method thereof and a crane. The arm tip pulley mechanism is arranged on the arm head of the crane, and comprises a pulley frame, an arm tip pulley, a hoisting part and a connection part; the arm tip pulley is rotatably arranged at the head part of the pulley frame, and the tail part of the pulley frame is provided with connection forks respectively correspondingly matching with the two ends of a lower pulley shaft; the hoisting part is arranged on the pulley frame and is disposed between the gravity center of the arm tip pulley mechanism and the tail part of the pulley frame; and one end of the connection part is connected with the head part of the pulley frame, and the other end is detachably connected with an upper pulley shaft. When the arm tip pulley mechanism of a crane is hoisted by a winching steel wire rope of the crane self, the connection fork parts are warped upwards, and because of the lifting of a winch, the connection forks automatically buckle the two ends of the lower pulley shaft, so that the self-dismounting of the arm tip pulley mechanism is realized, then the angel of the arm tip pulley mechanism is fixed by the connection part.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to an arm tip pulley mechanism, a self-disassembling method for the arm tip pulley mechanism and a crane. Background technique [0002] The current crane arm tip pulleys are basically directly installed on the main arm arm head, and generally can be rotated around one side of the pin shaft and retracted to the side of the main arm arm tip, but this arm tip pulley mechanism usually cannot be self-detached. In addition, a special installation structure and position for the arm tip pulley must be provided on the main arm arm head. In addition, there is a kind of arm tip pulley mechanism. An auxiliary frame is added on the arm tip pulley frame, and a rope passing wheel mechanism is set on the auxiliary frame. It is necessary to add a fork hole for installation at the front end of the arm head, corresponding to the arm tip pulley mechanism. When a large-tonnage crane needs to consi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/66B66C23/62
Inventor 韦仕持张晓广文门照
Owner SANY AUTOMOBILE HOISTING MACHINERY
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