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Easily-dismounted portal crane and dismounting method thereof

A technology of gantry cranes and slabs, which is applied in the direction of hoisting equipment braking devices, load hanging components, bottom support structures, etc., can solve the problems of cumbersome assembly of components, long time-consuming, self-heavy, etc., and achieve simplified disassembly and Hoisting and assembling process, reduction of working time at heights, and easy operation

Inactive Publication Date: 2016-03-30
TIANJIN 20 CONSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Gantry cranes, also known as gantry cranes, have been widely used in engineering and other fields. Among them, the installation and disassembly of gantry cranes occur more frequently in economic life. The assembly of the main girder and the bracket requires the use of a large crane when dismantling, and there are many high-altitude operations, which often take a long time

Method used

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  • Easily-dismounted portal crane and dismounting method thereof
  • Easily-dismounted portal crane and dismounting method thereof
  • Easily-dismounted portal crane and dismounting method thereof

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] as attached Figure 1-3 As shown, a gantry crane that is easy to disassemble includes a gantry crane main girder 6 and four gantry crane supports 7 supporting the main girder 6, and an opening and closing device is arranged between the main girder 6 and the supports 7 11. The opening and closing device 11 includes a first page plate arranged on the main beam 6 and located outside the connection with the bracket 7, and arranged on the bracket 7, located outside the connection with the main beam 6 and connected to the first page The second leaf plate 2 corresponding to the plate; the edge of the first leaf plate is provided with a first mandrel 3, and the first mandrel 3 is connected to the first leaf plate by double-sided welding; the first The mandrel 3 is connected with the second mandrel 4 arranged on the edge of the second page 2 and matched with the first m...

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Abstract

The invention discloses an easily-dismounted portal crane. The easily-dismounted portal crane comprises a main beam, and brackets for supporting the main beam, wherein an opening-closing device is arranged between the main beam and each bracket, and each opening-closing device comprises a first leaf plate arranged on the main beam, and a second leaf plate arranged on the each bracket; a first mandrel is arranged at the side edge of each first leaf plate; a second mandrel which is arranged at the side edge of each second leaf plate is connected to the corresponding first mandrel through a hinge pin. The invention further discloses a dismounting method of the portal crane. The method comprises the following steps: preparing and mounting the portal crane; hoisting the main beam, and dismounting a bottom longitudinal beam between the brackets; then releasing opposed bolts so as to integrally chain the main beam and the brackets through the opening-closing devices; finally lowering down the main beam, wherein the brackets can outwards slide along a bottom rail under the effect of the opening-closing devices. With the adoption of the method, the dismounting and mounting processes of a main structure of the portal crane can be simplified, thus the crane work shift and the time of working at heights can be decreased, and as a result, the cost can be saved, and meanwhile, the safety risk of construction can be reduced.

Description

technical field [0001] The invention relates to construction tooling, in particular to an easy-to-disassemble gantry crane and a disassembly method thereof. Background technique [0002] Gantry cranes, also known as gantry cranes, have been widely used in engineering and other fields. Among them, the installation and disassembly of gantry cranes occur more frequently in economic life. The assembly of the main girder and the bracket requires the use of a large crane when dismantling, and there are many high-altitude operations, which often take a long time. [0003] The main girder and support of the gantry crane are mostly connected by bolts. The normal disassembly procedure is to remove the main girder first, and then remove the support. This process requires the cooperation of the crane throughout the process. The main girder and support are lifted in sequence. The crane needs to lift the hook at least five times to completely dismantle the gantry crane structure. main bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C5/00B66C6/00
CPCB66C5/00B66C6/00
Inventor 常龙龙赵盼林刘超张玉峰尤永强黄永斌
Owner TIANJIN 20 CONSTR
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