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Truss arm and crawling crane with truss arm

A lattice arm and jib technology, which is applied in the field of lattice arms and crawler cranes, can solve problems such as limiting lifting performance, and achieve the effect of improving lateral deformation resistance and carrying capacity

Pending Publication Date: 2019-09-10
XCMG CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention mainly solves the technical problem that the performance of the crawler crane is restricted by the lateral stiffness of the jib and limits the lifting performance

Method used

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  • Truss arm and crawling crane with truss arm
  • Truss arm and crawling crane with truss arm
  • Truss arm and crawling crane with truss arm

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0032] Such as figure 1 As shown, the composite node integrated boom 100, 400, 500 and the transition joints 200, 300, 600, 700 connected at both ends can change the stiffness level of the boom along the axial direction. The specific connection scheme is the bottom section arm 800, the transition section 600, the composite node integrated boom 400, the transition section 200, the composite node integrated boom 100, the transition section 300, the composite node integrated boom 500, the transition section 700, the single The jib frame 900 and the jib head 1000 are connected sequentially; among them, the transition section 200, the transition section 300, the transition section 600, and the trans...

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PUM

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Abstract

The invention discloses a truss arm. The truss arm comprises an integrated arm rest composed of multiple segments of composite pitch points and multiple arm rests, any one arm rest is formed through alternative longitudinal detachable connection of multiple segments of sub arm rests and the composite pitch points, the sub arm rests on the same transverse position segment in the multiple arm restsare arranged in parallel, through the composite pitch points, all the sub arm rests on the transverse position segment are transversely connected, through the truss arm, the rotation face section inertia moment of the crawling crane can be effectively increased, the lateral-deforming-resisting capacity of the truss arm can be improved, the bearing capacity is obviously improved, and process producing, assembling and transporting are convenient; and the small-section sub arm rests are combined and connected to form the large-section arm rest, the property improving is achieved, and the large-section arm rest which is directly produced and cannot be dismounted wholly is avoided.

Description

technical field [0001] The invention relates to a truss arm and a crawler crane thereof, belonging to the technical field of crane hoisting. Background technique [0002] With the vigorous development of the national infrastructure industry and construction needs in recent years, crawler products, especially for large-tonnage products, have higher and higher hoisting performance requirements, especially in the field of wind power. At present, the hoisting height of wind power has reached more than 160m. Conventional crawler The performance of the single jib of the crane is far from meeting the requirements due to the constraints of lateral stiffness, and a new type of jib structure is urgently needed to solve the above problems. [0003] The prior art adopts a rectangular boom section, which is characterized by a wide section and nearly equal heights. The jib is a mechanical model in which one end is fixed and the other end is free on the slewing plane. When it is subjected...

Claims

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Application Information

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IPC IPC(8): B66C23/36B66C23/70
CPCB66C23/70B66C23/36
Inventor 崔丹丹余钦伟朱发浩
Owner XCMG CONSTR MACHINERY