Heavy-load leveling crane

Abstract

The invention discloses a heavy-load leveling crane. The heavy-load leveling crane comprises a power device, a working mechanism, a movable arm, a rotary table and a base plate, wherein the rotary table is arranged on the base plate; the base plate is connected with the rotary table by a supporting mechanism; the supporting mechanism comprises three hydraulic oil cylinder systems; an equilateral triangle shape is formed by three vertexes of the three hydraulic oil cylinder systems. According to the heavy-load leveling crane, the supporting mechanism comprising the three hydraulic oil cylinder systems is arranged and the three hydraulic oil cylinder systems form the equilateral triangle shape to finish crosswise and lengthwise adjustment; with the adoption of the structure, the space can be saved effectively and the rotary table is kept on one horizontal plane all the time, center-of-gravity shift caused by suspending a heavy object is prevented, and the crane is prevented from being turned on one side due to the weight of a cantilever and the like of the crane and moment shift caused by the center-of-gravity shift; the weight of the base plate is lightened effectively; meanwhile, the bearing weight of the crane can be increased and the performance of the crane is improved.

Description

technical field [0001] The invention relates to a construction machine, in particular to a heavy-duty leveling crane. Background technique [0002] Crawler crane is a kind of self-propelled crane used in high-rise building construction, and it is a kind of boom rotating crane that uses crawler walking. The track has a large grounding area, good passability, strong adaptability, and can walk with a load, which is suitable for hoisting operations on construction sites. It can be used for digging, ramming, piling and other operations. [0003] The crawler crane is composed of a power unit, a working mechanism, a boom, a turntable, and a chassis. Since the crane is used for hoisting heavy objects, the center of gravity is shifted due to the suspension of the heavy objects, and the weight of the cantilever of the crane. The offset of the moment caused by the shift will easily cause the crane to roll over. Therefore, the weight of the chassis must be increased to ensure the ...

AI Technical Summary

Problems solved by technology

[0003] The crawler crane is composed of a power unit, a working mechanism, a boom, a turntable, and a chassis. Since the crane is used for hoisting heavy objects, the center of gravity is shifted due to the suspension of the heavy objects, and the weight of the cantilever of the crane. The offset of the moment caused by the shift will easily cause the crane to roll over. Therefore, the weight of the chassis must be increased to ensure the safety of the crane. However, excessive weight will cause the load of the crane's traveling mechanism and also cause the crane to damage the road surface. Larger, but also have a greater impact on the operating environment of the crane

If the weight of the chassis is reduced, the load capacity of the crane will be reduced.

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