Bridge crane general assembly technology

A technology for bridge cranes and cranes, which is applied in the direction of walking bridge cranes, cranes, and traveling mechanisms, and can solve problems such as high difficulty in hoisting, limited space, and complex working conditions for crane assembly, so as to reduce construction difficulty and reduce work volume, eliminating the effect of being unable to turn

Active Publication Date: 2019-08-09
NANTONG ZHENHUA HEAVY EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the intelligent differential traction crane built for the first time in China has no relevant production experience to learn from. At the same time, the crane assembly conditions are complicated, the space is limited, and the hoisting is extremely difficult.

Method used

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Examples

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Embodiment Construction

[0049] The following examples can enable those skilled in the art to understand the present invention more comprehensively, but the present invention is not limited to the scope of the described examples.

[0050] There are two types of bridge cranes: 100T and 200T. This process plan is only described for 200T bridge cranes. For 100T bridge cranes, you can refer to this process.

[0051] A bridge crane assembly process, the specific structure of the crane is as follows figure 1 As shown, the specific structure of the bridge crane mainly includes a rail bearing beam 1, a cart traveling mechanism 2, a main beam 3 placed on the cart traveling mechanism, a lifting mechanism 8 installed on the main beam, and a trolley track 4 , the driver's cab 5 placed under the main beam, the maintenance cage 6 and the trolley assembly 7 placed on the track of the trolley, the upper surface of the rail bearing beam needs to be adjusted to a horizontal state with the help of a laser, and the maxim...

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PUM

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Abstract

The invention relates to a bridge crane general assembly technology. The general assembly technology sequentially includes site cleaning, cart walking mechanism arranging assembling, crane main beam lifting, main beam arranging assembling, trolley assembly arranging assembling, crane general assembling simulating and crane general assembling. Arranging assembling of main beams is conducted correspondingly, and main beam mechanisms are formed, and in addition, the main beam mechanisms are lifted in the crane general assembling process. The bridge crane general assembly technology has the beneficial effects that pre-assembling of main beams and trolleys is completed on the ground surface, the workload of aerial construction is reduced, and the construction difficulty is lowered; and the mainbeam assembly I and the main beam assembly II are subjected to general assembling separately, the requirement for the lifting capability is low, and in addition, the requirement for a bed jig and a foundation is low; and balancing weights are increased for weight balancing, the gravity center of the main beam mechanism I and the gravity center of the main beam mechanism II are accurately calculated, a single truck-mounted crane is adopted for lifting, and the defect that multiple truck-mounted cranes are used for lifting and cannot rotate is overcome.

Description

technical field [0001] The invention relates to the technical field of crane assembly, in particular to a bridge crane assembly process. Background technique [0002] In view of the demand for lightweight bridge cranes, the existing technology is currently used to focus on the research of two or more new transmission devices of "intelligent electric differential traction" lifting trolleys of different levels, and complete the new transmission device of bridge cranes. Developed so that it can be applied to 75-200 ton bridge cranes, achieving a weight reduction of more than 25% and power saving of more than 15%. [0003] The key technology of this type of crane lies in the design and manufacture. The crane has a double box girder structure, and the new transmission system is moved from the trolley to the girder box. It is a national test project and has high construction requirements. [0004] At present, the intelligent differential traction crane built for the first time in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C17/04B66C6/00B66C9/00
CPCB66C6/00B66C9/00B66C17/04
Inventor 曹凤丽吴正峰林海桥季秋兵王昕
Owner NANTONG ZHENHUA HEAVY EQUIP MFG
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