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Moment hoisting method for three connecting rods of gantry crane

A portal crane and three-link technology, applied in cranes and other directions, can solve the problem of high hoisting costs, achieve the effects of saving hoisting costs and reducing performance requirements

Inactive Publication Date: 2010-08-04
GUANGZHOU WENCHUAN HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When selecting a crane, it is necessary to choose a model with a larger specification, and the hoisting cost is generally higher

Method used

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  • Moment hoisting method for three connecting rods of gantry crane
  • Moment hoisting method for three connecting rods of gantry crane
  • Moment hoisting method for three connecting rods of gantry crane

Examples

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Effect test

Embodiment

[0033] Example: such as Figure 1 to Figure 13 As shown, the three-link moment lifting method of portal crane is characterized in that it comprises the following steps:

[0034] 1) Connect the boom 1 and the elephant trunk bridge 2 at hinge points and install them.

[0035] Such as Figure 1 to Figure 3 As shown, in step 1), the upper rotating column 3 of the door machine is used as the support platform when the boom 1 and the elephant trunk beam 2 are connected and installed at hinge points, and the end connecting the arm frame 1 and the elephant trunk beam 2 is placed on the upper rotating column of the door machine. The upper end of 3, and its other end is propping up with back pile 10. That end that elephant trunk bridge 2 is connected with jib 1 is placed on the upper end of rotating column 3 on door machine, and its other end is placed on bracket 11.

[0036] 2) Fix the relative position between the boom 1 and the elephant trunk bridge 2, and form two connecting rods ...

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Abstract

The invention discloses a moment hoisting method for three connecting rods of a gantry crane, which is characterized by comprising the following steps: 1) connecting hinged points between an arm frame and a fly-jib; 2) fixing relative positions between the arm frame and the fly-jib to form two connecting rods at the time; 3) hoisting the arm frame and a hinged end of a turntable of the crane to a turntable of the gantry crane and connecting hinged points between the arm frame and the turntable of the crane; 4) connecting a big pull rod and the upper end point of the fly-jib of the two connecting rods to form a three-connecting rod mechanism; and 5) integrally hoisting the three-connecting rod mechanism with the crane by taking the hinged point between the arm frame and the turntable of the crane as a rotating hinged point and taking the lower end point of the fly-jib of three connecting rods as a hoisting point so that the three-connecting rod mechanism is hoisted upwards around the rotating hinged point. The moment hoisting method for the three connecting rods of the gantry crane of the invention has low requirements on performance of the crane needing to be hoisted and can save hoisting cost.

Description

technical field [0001] The invention relates to a three-link moment lifting method for a portal crane. Background technique [0002] In the current technology, the mechanism composed of the jib above the rotating disk of the portal crane, the elephant trunk beam, and the large tie rod is called a three-link. Usually, the overall hoisting work of the three-link rod requires a relatively large working capacity of the crane. Its lifting capacity will exceed the total weight of the three connecting rods, and the height of the lifting point will also exceed the height of the top of the component. When hoisting, it should be higher than the highest point of the three-link installation position. When selecting a crane, it is necessary to choose a model with a larger specification, and the hoisting cost is generally higher. Contents of the invention [0003] The technical problem to be solved in the present invention is to provide a three-link moment lifting method for a portal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/64
Inventor 饶佳建韩淼荣陈世明张少勇
Owner GUANGZHOU WENCHUAN HEAVY IND
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