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Truss arm frame and folding method thereof as well as crane

A folding method and truss arm technology, applied to cranes and other directions, can solve the problems of high transfer cost, unstable center of gravity of the boom, and low transfer efficiency, so as to improve stability and safety, improve transfer efficiency, and reduce transfer costs Effect

Inactive Publication Date: 2012-09-19
ZOOMLION HEAVY IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] But in general, the ground conditions of the construction site are poor, and the boom of the crane is long and the center of gravity is high. When the crane is moving, it is easily affected by the ground conditions. Due to the influence of bumps, the center of gravity of the jib is unstable, and it is easy to lose balance. Therefore, the risk factor of the crane walking with the arm is high, and it is difficult to meet the direct transfer of the arm on the site.
In the case of poor ground conditions, it is often necessary to dismantle the truss arm by dismantling the main engine, and then assemble the arm frame after arriving at the transition site, resulting in a long construction period, high transshipment cost, and low transshipment efficiency

Method used

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  • Truss arm frame and folding method thereof as well as crane
  • Truss arm frame and folding method thereof as well as crane
  • Truss arm frame and folding method thereof as well as crane

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Embodiment Construction

[0023] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0024] Such as Figure 1 to Figure 6 As shown, according to the embodiment of the present invention, the lattice arm jib includes an arm root 10 , a folded portion 20 and an intermediate transition beam 30 disposed between the arm root 10 and the folded portion 20 to connect the arm root 10 and the folded portion 20 . Preferably, the intermediate transition beam 30 is located at the center of gravity of the entire lattice arm, and the center of gravity of the intermediate transition beam 30 coincides with the center of gravity of the lattice arm.

[0025] The first end of the arm root 10 is hinged with the car body 40, so that the elevation angle of the whole lattice arm can be adjusted. The second...

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Abstract

The invention provides a truss arm frame and a folding method thereof as well as a crane. The truss arm frame comprises an arm root part (10) and a folding part (20), wherein the arm root part (10) is connected with a crane body (40); the head of the folding part (20) is provided with a head pulling plate hanging point (21); and the connecting part between the arm root part (10) and the folding part (20) is provided with an arm-root pulling plate hanging point (11) on the arm root part (10). According to the invention, the center of gravity of the arm frame is reduced when the crane is turned, the transferring stability of the crane is improved and the transferring cost is reduced.

Description

technical field [0001] The invention relates to the arm frame folding technology of a large lattice arm, in particular to a lattice arm arm frame, a folding method thereof, and a crane. Background technique [0002] The crawler cranes in the prior art often need to be transferred within the construction site to meet the construction needs of different stages. In the case of good ground conditions, the crawler crane can move slowly with the arm to make a transition. At this time, since the crawler crane walks smoothly, it will not cause too much impact on its balance and can safely transition. [0003] But in general, the ground conditions of the construction site are poor, and the boom of the crane is long and the center of gravity is high. When the crane is moving, it is easily affected by the ground conditions. Affected by the bumps, the center of gravity of the boom is unstable, and it is easy to lose balance. Therefore, the risk factor of the crane walking with the boom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/68
Inventor 詹纯新刘权高一平黎伟福牟江涛
Owner ZOOMLION HEAVY IND CO LTD
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