Truss arm and crane

A lattice boom and crane technology, which is applied in the field of lattice booms and cranes, can solve problems such as insufficient lateral load resistance.

Pending Publication Date: 2020-01-17
ZHEJIANG SANY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing lattice arms have insufficient lateral load resistance

Method used

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  • Truss arm and crane
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  • Truss arm and crane

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Embodiment Construction

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0033] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The embodiment of the invention provides a truss arm and a crane, and relates to the field of cranes. The aim is to solve the problem of limited lifting capacity of existing truss arms. The truss armincludes a first arm rest, a first reducing joint and a second arm rest which are sequentially arranged in the preset straight line direction, and the cross-sectional area of the second arm rest is smaller than the cross-sectional area of the first arm rest and is larger than the cross-sectional area of a first connecting arm and the cross-sectional area of a second connecting arm; the first arm rest comprises at least two sub arm rests which are arranged side by side. The crane comprises the truss arm. The at least two sub arm rests are arranged, compared with the manner that one sub arm restis arranged, the overall width of the truss arm can be increased, and the ability of the arm rests to withstand lateral loads can be increased; the second arm rest is arranged, so that the width fromthe first arm rest to the end of the truss arm is gradually reduced, sudden changes in width are prevented from affecting the overall strength of the truss arm, when the width of the truss arm is increased, the strength of the truss arm and the capacity to withstand the lateral loads can be increased, and the overall lifting capacity is effectively improved.

Description

technical field [0001] The invention relates to a crane, in particular to a lattice arm and the crane. Background technique [0002] The lattice boom type crawler crane is usually connected by hinged multi-section lattice boom to form a certain length of boom combination. Transport the truss-type jib components, mast components, jib head components, etc. to the hoisting site and assemble them by hinges. In the working state, the lattice arm can be articulated around the horizontal axis and installed on the crane turntable so that it can be lifted or lowered in the vertical plane. [0003] The truss jib of the crane usually maintains strength and rigidity by cables or pull plates. When the truss jib lifts a large load, the limitation on the lifting capacity is usually not the ability of the jib to resist the deflection in the vertical lifting plane. Rather, it is lateral deformation in the horizontal plane, that is, the ability to resist lateral loads. [0004] The existin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/68B66C23/62
CPCB66C23/62B66C23/68
Inventor 秦绪起郭晓晨刘涛
Owner ZHEJIANG SANY EQUIP
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