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Supporting device for cranes and similar work machines and cranes having such a supporting device

A technology for supporting devices and operating machinery, which is applied in the direction of mechanically driven excavators/dredgers, cranes, lifting devices, etc., and can solve problems that are difficult to achieve

Active Publication Date: 2022-04-29
LIEBHERR WERK BIBERACH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such locally different component sizes are difficult to achieve in manufacturing technology

Method used

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  • Supporting device for cranes and similar work machines and cranes having such a supporting device
  • Supporting device for cranes and similar work machines and cranes having such a supporting device
  • Supporting device for cranes and similar work machines and cranes having such a supporting device

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Embodiment Construction

[0041] Such as figure 1 As stated, the bearing device 8 according to the invention can be part of the crane 1 and form its boom 3 and, when the crane is constructed as a tower crane, its tower. However, it should be pointed out that the support device can also be part of other similar working machines with a high load structure, wherein other working machines can be, for example, crawler machines, tractors, lifting mechanisms, such as wheel loaders or material handling equipment, Examples are overlying conveyors or construction machinery.

[0042] as well figure 1 As shown, the support device 8 can in particular be configured as a truss or a truss carrier, but in this case the support device can also comprise a support device component, for example a support 7 of a crane.

[0043] Such as figure 1 As shown, the crane 1 can be constructed as a tower crane comprising a vertically extending tower part 2 which supports an approximately horizontally extending jib 3 and possibly ...

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PUM

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Abstract

The invention relates to a support device for a crane, a hoist, a material handling device or a similar work machine, which has at least one elongated support support strut (9). The invention also relates to such a work machine with such a bearing device. According to a first solution, it is proposed that no separate double plates or no separate receiving tabs are welded or screwed to the bearing element as reinforcement, but that the bearing struts are arranged in one piece in the required, highly loaded areas. . A reinforcement layer ( 11 ) molded without gaps in order to achieve an organically growing wall thickness and / or cross-sectional increase here gently and uniformly. The reinforcement layer is formed in 3D printing.

Description

technical field [0001] The invention relates to a support device for a crane, hoist, material handling device or similar work machine, which has at least one elongate support device strut. The invention also relates to such a work machine with such a bearing device. Background technique [0002] The deadweight of high-load bearings of work machines, such as cranes, is of great importance, which until now usually only met the requirements of a lightweight construction on the one hand and sufficient safety and reliability on the other to a limited extent. Since safety-related strength has the highest priority, the bearing struts are designed with regard to safety on the basis of the maximum load, which is often overdimensioned in the bearing section which is subjected to lesser loads and thus leads to component weight improve. In particular, the highest loads, which are often relevant for the design of the component, occur only in certain sections of the bearing device, whil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/00B33Y80/00
CPCB32B15/00B66C23/62B33Y80/00E02F9/08B66C23/64B66F9/08E02F3/34E02F3/38E02F9/14
Inventor 约阿希姆·马耶尔
Owner LIEBHERR WERK BIBERACH