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Multiple arms telescopic device automatically controlled by single telescopic cylinder

A telescopic oil cylinder and telescopic device technology, which is applied to cranes and other directions, can solve the problems of large difference in the design section of the telescopic arm, complex telescopic structure, and influence on the lifting capacity, so as to achieve strong lifting capacity and versatility, and increase the boom section. The effect of simple area and structure

Inactive Publication Date: 2003-05-21
XUZHOU HEAVY MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the layout of the wire rope row structure of the telescopic arm device, the design cross-sections of the telescopic arms are greatly different, the telescopic structure is complicated, the weight of the boom is large, and the rigidity is small, which affects the lifting capacity.

Method used

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  • Multiple arms telescopic device automatically controlled by single telescopic cylinder
  • Multiple arms telescopic device automatically controlled by single telescopic cylinder
  • Multiple arms telescopic device automatically controlled by single telescopic cylinder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Embodiment 1: Cylinder pins are connected to the left and right sides of the cylinder head, and an arm pin extraction device is connected to the upper part of the cylinder head. There is a detection switch for detecting its final position near the arm pin extraction device. There is an end position detection proximity switch at the lower end of the pin, and a position detection proximity switch for each arm on both sides of the rear end of each telescopic arm. The upper part of the rear end of the telescopic arm is connected with an arm pin, and a floating telescopic oil cylinder is provided on both sides of the cylinder head and the cylinder barrel. Slideway, the left and right position chute at the rear end of each section of the boom.

[0009] The device includes a basic arm 1, a two-section arm 2, a three-section arm 3, a four-section arm 4, and a five-section arm 5. Except for the basic arm 1, each section arm is connected with a two-section arm arm pin 9 and a thre...

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PUM

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Abstract

The automatic controlled multi-joint boom telescopic equipment is characterized by that the left and right two sides of cylinder head the cylinder pins are connected, the boom pin drawing-out device is connected in the upper portion of the cylinder head, a detection switch for detecting its end and initial positions of set nearby boom-pin drawing-out device, in the lower end of left and right cylinder pins there is an end and initial position detection proximity switch respectively, and in both sides of rear end of every telescopic boom a boom position detection proximity switch is set respectively, and the upper portion of the rear end of the telescopic boom is equipped with boom pin, and both sides of cylinder head and cylinder are equipped with float telescopic oil cylinder slideway and the left and right positions of rear end of every boom have sliding way chute respectively.

Description

technical field [0001] The invention relates to a telescopic arm expansion device controlled by a crane, in particular to a multi-section arm expansion device automatically controlled by a single telescopic oil cylinder. Background technique [0002] At present, the telescopic arm of the truck crane is a cylindrical structure, and the expansion and contraction of the telescopic arm is realized by the oil cylinder and the wire rope row. The cylinder is composed of a piston rod, a cylinder head and a cylinder barrel. The cylinder head is welded to the cylinder barrel. The cylinder head is connected with the two-section arm through the left and right half shafts. A roller is connected to the rear end of the cylinder barrel, and the steel wire rope passes through the roller It is connected with the rear end of the three-section arm, and the other end is connected with the rear end of the basic arm. The extension of the telescopic arm is controlled ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/687
Inventor 罗衍领彭铎史先信阎丽娟东权陈卫东刘木南程磊
Owner XUZHOU HEAVY MASCH CO LTD
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