High-altitude operation and multiple-section telescopic boom thereof

Abstract

The invention discloses a multiple-section telescopic boom which comprises a telescopic oil cylinder and a wirerope bracket mounted on the telescopic oil cylinder, wherein the wirerope bracket comprises a pin-connected support, a first pin shaft, a second pin shaft, a connection block and a wirerope clamping piece; the pin-connected support is fixedly connected with the telescopic oil cylinder, and a pin shaft hole is formed in the pin-connected support; the first pin shaft is inserted into the pin shaft hole of the pin-connected support, and the second pin shaft is mutually vertical to the first pin shaft; the connection block is hinged to the first pin shaft through the second pin shaft; the wirerope clamping piece is connected with the connection block. The multiple-section telescopic boom can effectively solve the problem that the wirerope bracket and a wirerope are not on the same straight line, so that the wirerope bracket is not influenced by unbalance loading pulling force of the wirerope. The invention further discloses high-altitude operation equipment which comprises the multiple-section telescopic boom.

Description

Technical field [0001] The invention relates to the technical field of engineering machinery, and more specifically to a multi-section telescopic arm. In addition, the present invention also relates to an aerial work equipment including the above-mentioned multi-section telescopic boom. Background technique [0002] With the rapid development of my country's economic construction, the market demand for telescopic booms is increasing. At present, the market application of telescopic booms is wider and wider, mainly used in some aerial work equipment. [0003] A common telescopic movement of a multi-section telescopic arm in the prior art is mainly realized by a combination of a hydraulic telescopic cylinder and a steel wire rope mechanism. One end of the hydraulic telescopic cylinder is connected to the first section arm (the order here is divided into the first section arm, the second section arm, etc. according to the cross-sectional size of the arm from large to small), and the ...

AI Technical Summary

Problems solved by technology

When the arm is stretched out, the extended steel wire rope is pulled and retracted. The steel wire rope is basically unstressed. When the steel wire rope is not stressed, it will sag due to its own gravity, causing the steel wire rope to rub against other structures, shortening the steel wire rope and other structures. service life

In the prior art, a wire rope bracket is often installed on the telescopic oil cylinder, which limits the drooping of the wire rope

[0004] However, due to errors in manufacturing and assembly, it is difficult to ensure that the wire rope bracket and the wire rope are on the same straight line, which will cause the wire rope bracket to be subjected to the partial load tension of the wire rope, which not only makes the wire rope bracket easy to be pulled, but also makes the wire rope Normal orientation is affected

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