Super lifting device and flare angle control device thereof, as well as crane containing super lifting device

A technology of control devices and super-lifting devices, which is applied to cranes and other directions, can solve the problems of small opening angle adjustment range, limitation, and inability to take into account the maximum restraint effect of the boom at the same time, so as to achieve the effect of increasing the working height and improving the restraint effect

Active Publication Date: 2012-09-19
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of this type of superlift device is relatively simple, and its mast opening angle is basically fixed into two types, and some even have only one type.
Although this type of super-lifting device effectively reduces the deflection of the jib in the luffing plane and the slewing plane, due to structural limitations, the adjustment range of the opening angle is small, and it is impossible to take into account the effect of the boom on the slewing plane and the luffing plane at the same time. The maximum constraint effect of the crane, thus limiting the ability of the crane to further improve its lifting performance including working height, amplitude and hoisting weight

Method used

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  • Super lifting device and flare angle control device thereof, as well as crane containing super lifting device
  • Super lifting device and flare angle control device thereof, as well as crane containing super lifting device
  • Super lifting device and flare angle control device thereof, as well as crane containing super lifting device

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Embodiment Construction

[0028] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0029] The luffing plane mentioned in the present invention refers to the plane parallel to the length direction of the boom formed by the rotation of the superlift device around its fixed point with the boom.

[0030] The basic arm mentioned in the present invention refers to the lifting arm pivotally connected with the upper part of the crane, and the basic arm can be the main arm of the crawler crane, or the first section arm in the telescopic boom crane. In the telescopic boom crane, at least one telescopic boom is set in the basic boom, and the telescopic boom can be extended or retracted relative to the basic boom.

[0031] The boom described in the present invention is a whole composed of a b...

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Abstract

The invention provides a super lifting device and a flare angle control device thereof, as well as a crane containing the super lifting device. The flare angle control device comprises that a support rod connecting base, and a pin roll connecting hole is arranged on the support rod connecting base; a first super lifting support rod (20), a second super lifting support rod (20'), a third super lifting support rod (40) and a fourth super lifting support rod (40'), and first ends of the first super lifting support rod (20), the second super lifting support rod (20'), the third super lifting support rod (40) and the fourth super lifting support rod (40') can be connected on the support connecting base in a pivot way; and the third super lifting support rod (40) is arranged outside the first super lifting support rod (20), and the fourth super lifting support rod (40') is arranged outside the second super lifting support rod (20'). According to the flare angle control device, the constraint function of the crane arm can be enhanced, and the lifting performance of the crane is further increased.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a super-lifting device, an opening angle control device thereof, and a crane including the super-lifting device. Background technique [0002] With the rapid development of the world economy, construction cranes as major equipment are widely used, and wind power projects and large-scale petrochemical projects are increasing day by day. At the same time, with the continuous development of the leasing industry, the market demand for large-tonnage cranes is increasing year by year. Type all-terrain cranes are favored by the market for their flexible movement, quick transition, and quick operation. But at the same time, its performance in large-tonnage hoisting is far lower than that of the same-ton lattice boom crawler crane, and its shortcomings have gradually emerged. [0003] As we all know, the lifting performance of a crane is one of the important indicators to m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/72B66C23/66
CPCB66C23/826
Inventor 詹纯新刘权李孟寒宁玮
Owner ZOOMLION HEAVY IND CO LTD
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