Displacement on line measuring method of tower crane structure

A technology of tower cranes and measurement methods, which is applied to cranes and other directions, can solve the problems of hidden dangers, uncontrollability, casualties and other problems of drivers and lifting equipment, and achieve the effect of ensuring life safety and preventing overturning

Inactive Publication Date: 2007-04-18
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the crane is actually in use, it cannot be detected online. When the structural displacement index of the crane exceeds the standard, it cannot be controlled, which brings great hidden dangers to the driver and the lifting equipment itself.
In actual u

Method used

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  • Displacement on line measuring method of tower crane structure
  • Displacement on line measuring method of tower crane structure
  • Displacement on line measuring method of tower crane structure

Examples

Experimental program
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Example Embodiment

[0014] With reference to Figure 1, the steps of the online measurement method for the structural displacement of the tower crane are as follows:

[0015] 1. Install an angle sensor at the hinge point of the boom root of the tower crane.

[0016] 2. Use the angle sensor to detect the angle change of the boom root and convert it into an analog electric signal.

[0017] 3. The angle change analog electrical signal is converted into a digital signal that can be processed by the single-chip microcomputer through the analog input interface circuit and the A / D conversion circuit.

[0018] Fourth, the angle change digital electrical signal is connected to the single-chip microcomputer, and after the corresponding mathematical model is processed, the horizontal change of the boom root is obtained, which is the structural displacement of the tower crane.

[0019] In actual application, use theodolite or other equipment to measure the two horizontal change values ​​Y1 and Y2 of the boom root...

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PUM

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Abstract

An in-line measuring method for the structural displacement of tower crane includes such steps as arranging an angle sensor at the pivoted root of gibbet, detecting the angle variation of gibbet, A/D conversion to become digital signal, inputting the digital signal to single-chip processor, and processing by mathematic model to obtain the structural displacement.

Description

technical field [0001] The invention relates to an online measurement method for the structural displacement of a tower crane, belonging to the technical field of measurement control. Background technique [0002] In construction, electric power, water conservancy, petrochemical, mining and other industries, it is generally necessary to use a large number of cranes for lifting, transportation, loading and unloading. Especially in construction projects, the amount of lifting and installation is quite large, and engineering cranes are required to lift and carry large volumes. , heavy weight of various equipment and raw materials, so its safety is very important. For this reason, the country has listed hoisting machinery as special equipment with high safety and danger, and has formulated strict specifications and regulations from design to production. National mandatory standards. The national standard has strict regulations on the safety of cranes, and stipulates various saf...

Claims

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Application Information

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IPC IPC(8): B66C23/88
Inventor 张广明魏晓冬
Owner NANJING UNIV OF TECH
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