Swinging method of large-scale square object and crane thereof

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...

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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

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