Swinging method of large-scale square object and crane thereof

A technology of cranes and bridge cranes, which is applied in the direction of walking bridge cranes, cranes, load blocks, etc., and can solve the problems of not too large a gap in width, uneven force on lifting points, and damage to suspended objects, etc., to improve The effect of upper limit, lower manufacturing cost, and reliable performance

Active Publication Date: 2013-05-22
ZHUZHOU TIANQIAO CRANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, when lifting objects whose length and width are not too different, one lifting point can be used to achieve safe lifting; when lifting slender objects, two-point lifting is usually enough; but when lifting both long and wide , Rigid and particularly good objects, the two-point lifting method is obviously not enough to meet the requirements, so the four-point lifting method must be used for lifting, so as to ensure the stable lifting and transportation of the lifted objects, but According to the principle that three points determine a plane, four-point lifting obviously has the problem of over-positioning, especially for long, wide and particularly rigid objects, because such objects have no deformation or are not allowed to deform during lifting, so It is easy to happen that the force of each lifting point is uneven, resulting in some of the lifting points being overloaded, causing accidents, or directly damaging the hanging objects. Therefore, it is urgent to improve the current four-point lifting method to ensure the lifting quality. Safe and fast

Method used

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  • Swinging method of large-scale square object and crane thereof
  • Swinging method of large-scale square object and crane thereof
  • Swinging method of large-scale square object and crane thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: A method for hoisting large square objects, adopting the scheme of lifting with four lifting points, installing two sets of lifting mechanisms on one bridge crane, and the two sets of lifting mechanisms are installed on the same running trolley, each There are two lifting points on the lifting mechanism, and four lifting points are used to lift large square objects. The two lifting points on the lifting mechanism are fixed on the bracket of the lifting mechanism, and are driven by the same motor to lift synchronously; A balance arm device is set between the two lifting points of another set of lifting mechanism. The balance arm device is fixedly connected to the support of the running trolley by means of a cross hinge. Lifting, the balance arm device automatically adjusts the load of the two lifting points in real time, balances the load between the two lifting points, and realizes that the loads on the two lifting points are consistent, which is equivalent...

Embodiment 2

[0033] The principle of the second embodiment is the same as that of the first embodiment, except that the structure is different. The difference from the first embodiment is that two sets of lifting mechanisms are respectively installed on two independently running trolleys.

Embodiment 3

[0035] The principle of the third embodiment is the same as that of the first embodiment, but the structure is different. The difference from the first embodiment is that the balance arm device includes a support, a balance beam, two support beams, two pulleys, a suspension fork and Pin shaft; the support is installed on the running trolley, the two support beams are installed above the support, and the two balance pulleys are respectively installed at the two ends of the balance beam, and the balance beam Cross-hinged on two support beams through the suspension fork and the pin shaft.

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PUM

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Abstract

The invention discloses a swinging method of a large-scale square object. The scheme of four-lifting-point hoisting is that a bridge crane is provided with two sets of the lifting mechanisms, each lifting mechanism is provided with two lifting points, the four lifting points are utilized to lift the large-scale square object, and a balance arm device is arranged between the two of the four lifting points; and the whole crane is regarded as a lifting system, the two connected lifting points form a lifting point of the system, the four-lifting-point excessive positioning problem is solved, the stable rise and fall and swing of the large-scale square object are realized, and the swinging level of the large-scale square object is improved to the new height. The invention simultaneously discloses a crane of the large-scale square object using the swing method, the crane has the advantages that the design is reasonable, the operation is stable, and the cane is worth of popularizing and applying.

Description

technical field [0001] The invention relates to a hoisting method and equipment for a crane, in particular to a hoisting method and equipment for square objects with large dimensions and good rigidity, and belongs to the technical field of heavy machinery. Background technique [0002] At present, when lifting objects whose length and width are not too different, one lifting point can be used to achieve safe lifting; when lifting slender objects, two-point lifting is usually enough; but when lifting both long and wide , Rigid and particularly good objects, the two-point lifting method is obviously not enough to meet the requirements, so the four-point lifting method must be used for lifting, so as to ensure the stable lifting and transportation of the lifted objects, but According to the principle that three points determine a plane, four-point lifting obviously has the problem of over-positioning, especially for long, wide and particularly rigid objects, because such object...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C13/04B66C11/00B66C11/12B66C17/06
Inventor 郭旭春
Owner ZHUZHOU TIANQIAO CRANE
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