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Multi-knuckle-arm retracting mechanism and engineering machinery vehicle

A telescopic mechanism and articulated arm technology, applied in cranes, fire rescue and other directions, can solve problems such as reducing the stability of the telescopic oil cylinder and the stability of the telescopic mechanism

Active Publication Date: 2015-05-13
CHANGSHA ZOOMLION FIRE FIGHTING VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, as the lifting height of fire trucks or cranes increases, the number of segments of the telescopic arm increases, and the telescopic cylinder needs to pass through the multi-section arm within the range of the telescopic stroke. position, which further reduces the stability of the telescopic cylinder and the stability of the entire telescopic mechanism

Method used

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  • Multi-knuckle-arm retracting mechanism and engineering machinery vehicle
  • Multi-knuckle-arm retracting mechanism and engineering machinery vehicle
  • Multi-knuckle-arm retracting mechanism and engineering machinery vehicle

Examples

Experimental program
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Embodiment Construction

[0031] see figure 1 , is a structural schematic diagram of an embodiment of the multi-section boom telescoping mechanism of the present invention.

[0032] The multi-section arm telescoping mechanism of this embodiment includes but is not limited to at least the first section arm 11, the second section arm 12 and the third section arm 13 which are arranged in sequence, which can be used for engineering machinery vehicles such as fire trucks or cranes. , Construction machinery and equipment, not limited here.

[0033] In this embodiment, the multi-section boom telescopic mechanism may also include a telescopic oil cylinder 20 and a supporting device. The telescopic oil cylinder 20 includes a piston rod 21 and a cylinder body 22. The telescopic oil cylinder 20 is installed in the multi-section arm of the multi-section arm telescopic mechanism. When installing, the piston rod 21 is fixedly connected with the first section arm 11, and the cylinder body 22 is connected with the se...

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PUM

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Abstract

The embodiment of the invention discloses a multi-knuckle-arm retracting mechanism, at least comprising a first knuckle arm, a second knuckle arm and a third knuckle arm. The multi-knuckle-arm retracting mechanism further comprises a retracting oil cylinder and a supporting device. The retracting oil cylinder comprises a piston rod and a cylinder body; the piston rod is connected with the first knuckle arm and the cylinder body is connected with the second knuckle arm; and the supporting device is correspondingly arranged on the other knuckle arm which is different from the first knuckle arm and the second knuckle arm and is used for supporting the cylinder body. According to the embodiment of the invention, the effect of the supporting device improves the stability of the retracting oil cylinder and the stability of the whole multi-knuckle-arm retracting mechanism is improved.

Description

technical field [0001] The invention relates to the technical field of telescopic mechanisms, in particular to a multi-section boom telescopic mechanism, and also to an engineering machinery vehicle. Background technique [0002] At present, various construction machinery vehicles equipped with telescopic mechanisms, such as fire trucks, all adopt the structural form of telescopic arms. [0003] The expansion and contraction of the telescopic arm is realized by the telescopic oil cylinder. Specifically, the telescopic oil cylinder is arranged in the telescopic arm, which usually has the following arrangements: [0004] 1. Two telescopic oil cylinders are arranged. Usually, the piston rods of the two telescopic oil cylinders are fixed at the end of the first section arm and the second section arm in turn, and the cylinder body is fixed at the end of the second section arm and the third section arm in turn. , the expansion and contraction of other joint arms is realized by m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/693A62C27/00
Inventor 邹冬秀刘召华梁米
Owner CHANGSHA ZOOMLION FIRE FIGHTING VEHICLE
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