Strain measuring method for large-scale prestressed wire winding machine frame

A technology of prestressed steel wire and measurement method, applied in the field of strain measurement, can solve problems such as difficult engineering, many patch points, easy to produce errors, etc., and achieve the effect of solving heavy workload and ensuring measurement accuracy

Inactive Publication Date: 2012-06-20
CHINA 22MCC GROUP CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large volume of the large press frame, there are many placement points, the project is difficult, and the data of the placement measurement is also greatly affected by the environment, which is prone to errors and brings a lot of inconvenience to the measurement.

Method used

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  • Strain measuring method for large-scale prestressed wire winding machine frame
  • Strain measuring method for large-scale prestressed wire winding machine frame
  • Strain measuring method for large-scale prestressed wire winding machine frame

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Embodiment Construction

[0020] The present invention is further described below in conjunction with the examples, the purpose is only to better understand the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0021] see figure 1 , figure 2 , a method for measuring the frame strain of a large prestressed steel wire winding machine, according to the following steps:

[0022] In the first step, surface treatment is carried out on the measurement area 4 on the press frame 1, so that the area can achieve an ideal measurement effect.

[0023] In the second step, the lens fixing and moving device 2 is installed in the measurement area 4. The lens fixing and moving device 2 is composed of a mounting bracket 7, an up and down translation mechanism 8 assembled on the installation bracket 7, and an up and down translation mechanism. The left and right translation mechanism 9 on the 8 and the front and rear translation mechanism 10 a...

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Abstract

The invention relates to a strain measuring method, particularly to a strain measuring method for a large-scale prestressed wire winding machine frame, which includes the steps: surface treating the area of a press frame to be strain measured to achieve an ideal measuring effect and mounting a camera positioning and moving device in the area; mounting a microscope and connecting a lens interface with a computer interface through an optical fiber; extracting and storing a microscopic image, calculating edge of the image through a digital image processing software and recording data; re-obtaining the edge of the microscopic image in the area and recording the data after the strain of the press frame is changed; and comparing the twice-obtained image edges, and calculating the displacement of the edges and calculating the strain. The strain measuring method overcomes the problems that by adopting the conventional strain foil method to measure the strain, the work load is big, the foil attaching is difficult, and the calculating data is easy to be interfered to be incorrect, and the digital image processing technology ensures the measuring precision.

Description

Technical field: [0001] The invention relates to a strain measurement method, in particular to a measurement method for the frame strain of a large prestressed steel wire winding machine. Background technique: [0002] At present, the patch method is used to measure the strain of the large-scale prestressed steel wire winding press frame, and the strain gauge is attached to the position where the strain needs to be measured, and the strain of the press is calculated by the data obtained by the strain gauge measurement. Due to the large volume of the large press frame, there are many placement points, the project is difficult, and the data of the placement measurement is also greatly affected by the environment, which is prone to errors and brings many inconveniences to the measurement. Invention content: [0003] The present invention aims to solve the problems existing in the above-mentioned strain measurement method, and provides a large-scale prestressed steel wire wind...

Claims

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Application Information

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IPC IPC(8): G01B11/16
Inventor 刘永前万以明孙富丁宁
Owner CHINA 22MCC GROUP CORP
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