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Construction method for assemble cargo boom of crawling crane through breaking-off method

The technology of a crawler crane and construction method, which is applied in the directions of crane, transportation and packaging, can solve problems such as the combination of boom sections, and achieve the effect of reducing trimming, reducing damage to the ecological environment and having a wide range of applications.

Inactive Publication Date: 2017-02-08
POWERCHINA SEPCO1 ELECTRIC POWER CONSTR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aiming at the construction site with uneven ground and a slope, a new assembly method is proposed, which solves the problem that the conventional assembly method cannot be adopted due to site restrictions (that is, the installation starts from the root of the boom section by section, and the boom section The upper and lower four pins of the unit are all installed in place at one time) The problem of combining the boom section unit

Method used

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  • Construction method for assemble cargo boom of crawling crane through breaking-off method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A construction method using the "breaking method" to combine the boom of a crawler crane is as follows:

[0032] When 8 pairs of booms are combined on the horizontal ground with the same height as the platform where the main engine 1 of the crawler crane is located, each boom section unit 2 is sequentially connected with the upper pin shaft and the lower pin shaft from the root section; when the boom is combined under the ground In the slope position, a support device 7 is placed on the ground adjacent to the downhill position to support the assembled boom unit 2;

[0033] Then the boom section unit 3 at this position and the next boom section unit 4 are only connected to the lower parts of the two boom section units through the lower pin shaft, and then connected successively through the upper pin shaft and the lower pin shaft along the ground slope. down each arm section unit;

[0034] After all the boom section units are assembled and the hook rope 5 is put on, use ...

Embodiment 2

[0038] When the ground is extremely uneven, drive the main engine of the crawler crane to a position with a certain height above the ground, and then use the upper pin shaft and the lower pin shaft to connect each arm section unit sequentially from the root section in the air, when installed to the set position When the boom section unit at this position is connected to the next boom section unit, the lower parts of the two boom section units are only connected through the lower pin shaft, and then the next boom sections are connected sequentially through the upper pin shaft and the lower pin shaft. unit;

[0039] After all the boom section units are assembled, lift the head position of the boom, and gradually lift it to the same level as the boom root section, install the upper pin between the two boom section units at the downhill position The shaft connects the tie rods of the two boom section units;

[0040] After all the installation work is completed, the main hoisting ...

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Abstract

The invention discloses a construction method for assemble a cargo boom of a crawling crane through a breaking-off method. When the cargo boom is assembled on the ground at the same height with the platform where a main crane of the crawling crane is located, all boom joint units are connected sequentially through upper hinge pins and lower hinge pins starting from the root joint. When the cargo boom is assembled to the ground downhill position, a support device is placed on the ground near the downhill position and is used for supporting assembled cargo boom units, then the lower portion of the boom joint unit in the position and the lower portion of the next boom joint unit only through a lower hinge pin, and then along the ground slope, the all next boom joint units are connected sequentially through lower hinge pins and lower hinge pins. When the head position is lifted gradually to be on the same horizontal line with the root segment of the cargo boom, the upper hinge pins of the two boom joint units in the downhill position, and thus pull rods of the two boom joint units are connected in a butt joint mode. After all installation work is completed, a main lifting machine of the crane is started, and assembly of the cargo boom is completed.

Description

technical field [0001] The invention discloses a construction method for combining a boom of a crawler crane by adopting a "breaking method". Background technique [0002] Crawler Crane is a kind of crane that gets off the chassis type crawler traveling mechanism and walks on the crawler belt. The jib unit is a multi-section assembled truss structure, and the length can be changed after adjusting the number of sections. Its lower end is hinged at the front of the turntable, and its top is suspended and supported by a luffing wire rope pulley block, and its inclination angle can be changed. There is also an auxiliary arm installed on the top of the boom, and the auxiliary arm and the boom form a certain angle. The hoisting mechanism has two hoisting systems, main and auxiliary, the main hoisting system is used for lifting the boom, and the auxiliary hoisting system is used for lifting the jib. [0003] Due to the characteristics of the crawler crane boom section unit, it mu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/683
CPCB66C23/68B66C2700/0307B66C2700/0392
Inventor 张亭森于景龙杨政罗强
Owner POWERCHINA SEPCO1 ELECTRIC POWER CONSTR CO LTD
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