High-precision positioning and mounting method applied to heavy machinery columns and construction steel structures in large space

A heavy machinery, positioning and installation technology, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems of high processing and installation positioning accuracy, and achieve the effect of improving control accuracy

Active Publication Date: 2018-11-23
CHINA CONSTR STEEL STRUCTURE CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For ultra-large equipment, it is impossible to fully process it into an integral component in the factory, and it requires high installation and positioning accuracy for on-site installation. It is rare for projects that need to determine the positioning reference according to the site conditions

Method used

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  • High-precision positioning and mounting method applied to heavy machinery columns and construction steel structures in large space
  • High-precision positioning and mounting method applied to heavy machinery columns and construction steel structures in large space
  • High-precision positioning and mounting method applied to heavy machinery columns and construction steel structures in large space

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specific Embodiment approach

[0024] The preferred specific implementation method of the high-precision positioning and installation method of the large-space heavy machinery column and the building steel structure of the present invention is:

[0025] Include steps:

[0026] A. Measure the positioning datum on the steel structure foundation;

[0027] B. Milling the mounting surface of the mechanical column;

[0028] C. Processing positioning key;

[0029] D. The positioning key is adjusted to determine the baseline;

[0030] E. Use laser tracker, electronic theodolite and dial indicator to cooperate with three precision measuring instruments to measure and adjust the positioning key;

[0031] F. The positioning key is fixed;

[0032] G. Install the mechanical column.

[0033] In the step A, the steel structure foundation is welded and assembled, and the position of the positioning key keyway as the positioning reference is shifted with the welding deformation of the steel member, and the laser tracke...

specific Embodiment

[0050] 1 Measuring the positioning datum on the steel structure foundation

[0051] Due to the welding and assembly of the steel structure foundation, the position of the positioning reference (keyway) shifts with the welding deformation of the steel member. The laser tracker is used to measure the position of the keyway on the steel structure foundation and the flatness of the installation plane of the mechanical column, such as figure 1 shown.

[0052] 2 Milling mechanical column mounting surface

[0053] Set up a gantry milling machine on site to mill the installation surface of the mechanical column to make the flatness reach 0.1mm / m. The height difference of the installation surfaces of the four mechanical columns is not more than 0.1mm, and the milling process is as follows: figure 2 shown.

[0054] 3 processing positioning key

[0055]According to the measurement results of the position offset of the keyway of the positioning key and the analysis of the data, the w...

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Abstract

The invention discloses a high-precision positioning and mounting method applied to heavy machinery columns and construction steel structures in large space. The method comprises the following steps:measuring positioning reference of steel structure foundations; milling machinery column mounting surfaces; processing positioning keys; determining positioning key adjustment reference lines; adjusting the positioning keys by using a laser tracker; fixing the positioning keys; and mounting machinery columns. Through the method, the laser tracker is used for measuring and analyzing deformation size of the welded steel structure foundations; the positioning reference adjustment scheme is determined; a large line is formed by a theodolite; the laser tracker is used for adjusting large-space multi-freedom positioning reference by taking the large line as rough reference; then the laser tracker is used for fitting more accurate reference lines so as to complete adjustment of the positioning reference; dial indicators are used for monitoring; high-strength grouting material is grouted in gaps among key grooves; a method for grouting fluid and then solidifying is adopted, so that the gaps can be fully filled; the property of the grouting material is better than the property of concrete; meanwhile, the grouting material is free of shrinkage and expansion in the solidifying process; movable T-shaped keys are adopted, so that the mounting is easier; the problem that the positioning reference is re-determined in the large space is solved; an efficient and convenient solution scheme is provided for high-precision positioning of the large space; the problem that large equipment cannot be pre-assembled in factory is solved; the problem that the large equipment cannot be positioned whenthe large equipment is mounted in the large space is solved; and the control precision of mounting of the large equipment is improved.

Description

technical field [0001] The invention relates to a large-space multi-degree-of-freedom multi-group positioning key high-precision adjustment and installation technology, in particular to a large-space heavy machinery column and a high-precision positioning and installation method for building steel structures. Background technique [0002] During the installation of large-scale equipment, the parts are generally processed for the factory and pre-assembled. Commonly used positioning measures are positioning keys and positioning pins, which are all precisely machined by machine tools and can be installed directly. For ultra-large equipment, it is impossible to fully process it into an integral component in the factory, and it requires high installation and positioning accuracy for on-site installation. It is rare for projects that need to determine the positioning reference according to the site conditions. Contents of the invention [0003] The purpose of the present invent...

Claims

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Application Information

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IPC IPC(8): B23P15/00B23P19/00
CPCB23P15/00B23P19/00
Inventor 杜得强苏田中吕志珍孙建运李士杰许洋洋
Owner CHINA CONSTR STEEL STRUCTURE CORP LTD
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