Connecting device, combined crane with the connecting device and connecting method
A connection device and connection method technology, applied in cranes, transportation and packaging, load hoisting components, etc., can solve the problems of complex structure, high capital investment, no enhancement of the anti-overturning ability and structural stability of the foundation crane, and achieve hinged connection. Simple structure, easy to manufacture and easy to assemble
Active Publication Date: 2017-09-22
TEREX GLOBAL GMBH
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Problems solved by technology
[0006] For the above three combined lifting methods, there are limitations in the following aspects: 1) Compared with the basic crane, the combined crane does not reduce the axial load of a single crane jib, and does not enhance the anti-overturning ability and structural stability of the basic crane; 2) The structure is relatively complex; 3) The existing crane itself needs to be modified to meet the needs of combined lifting, thus resulting in relatively high capital investment
Method used
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Embodiment Construction
[0068] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
[0069] For purposes of illustration, the present invention will be described using the example of a crawler crane with a jib. Those skilled in the art can easily imagine that the present invention is also applicable to other types of cranes with booms, such as truck cranes and the like.
[0070] refer to Figure 1a and Figure 1b , it can be seen that the existing crawler crane 10 includes a lower propulsion body 11 with a walking track 110, an upper slewing body 13 installed on the lower propulsion body through a slewing support mechanism 12, and a jib mounted on the upper slewing body 13. 14. The free end 140 of the boom 14 is provided with a hoisting block 15 and a hook 16 suspended from the block for hooking a weight 21 . The tra...
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The present invention relates to a connection apparatus for connecting a first crane and a second crane, wherein the first crane and the second crane are respectively provided with an arm frame, the connection apparatus comprises a first connection arm and a second connection arm, the first connection arm forms the top portion of the arm frame of the first crane, the second connection arm forms the top portion of the arm frame of the second crane, the first connection arm and the second connection arm are integrally hinged around the only co-pivot shaft in the same pivot plane, the arm frames of the first crane and the second crane are subjected to linkage in the same amplitude change plane, and the amplitude change plane and the pivot plane are the same plane. The present invention further relates to a combined crane having the connection apparatus, and a connection method thereof.
Description
technical field [0001] The invention relates to the technical field of crane equipment, in particular to a connection device for connecting two foundation cranes with booms and a combined crane with the connection device. Background technique [0002] For crane equipment, each of its load-bearing components must have a certain safety margin to ensure the safety of equipment, personnel and property. Therefore, once the load expected to be lifted exceeds the limit load range of the crane, the crane is not allowed to lift the load. The alternative is to choose a larger model of crane. In addition, from an economical point of view, purchasing a larger crane to lift the heavy object will greatly increase the cost, and when the tonnage of a larger crane exceeds a certain level, the requirements for the ground will be more stringent, which will make the ground foundation treatment more difficult. The cost is very expensive. In order to solve this problem, it has been considered ...
Claims
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IPC IPC(8): B66C13/00B66C23/36
CPCB66C13/00B66C23/36
Inventor 李俊杰G·卡尔普
Owner TEREX GLOBAL GMBH