Detection method for parallelism and coaxiality of flanges at two ends of pylon

A detection method and parallelism technology, which is applied in the field of parallelism and coaxiality detection of flanges at both ends of the tower section, can solve problems such as poor precision, large influence on workshop production process, long adjustment time, etc., and achieve the goal of reducing human factors Effects of interference, mitigation of site turnover issues, and simple detection methods

Inactive Publication Date: 2013-11-20
AVIC HONGBO WINDPOWER EQUIP
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Problems solved by technology

[0002] At present, the method of measuring the parallelism and coaxiality of flanges is the horizontal tire frame measurement method or the flange centering method, but there are many disadvantages: 1. It is necessary to make a fixed horizontal tire frame, which consumes a lot of manpower and material resources, and requires regular inspection. Check the tire frame; 2. It occupies a large space and has a great impact on the production process of the workshop; 3. The measurement is more cumbersome, the adjustment is more inconvenient, the adjustment time is too long, the entire measurement process takes a long time, and has a greater impact on the production process; 4. The traditional method of parallelism is to measure by hanging a plumb line, and the accuracy is poor

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  • Detection method for parallelism and coaxiality of flanges at two ends of pylon

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Embodiment approach

[0020] Such as figure 1 with figure 2 An embodiment of the method for detecting the parallelism and coaxiality of the flanges at both ends of the tower section of the present invention is shown, which includes the following steps:

[0021] A. Measuring parallelism:

[0022] a. Place the laser transmitter 1 on the large diameter end of the tower section 2, the large diameter end is the proximal end, that is, the small diameter end is the distal end;

[0023] b. Adjust the first laser beam 3 emitted by the laser transmitter 1 so that the rotating surface of the first laser beam 3 is parallel to the proximal flange surface. Specifically, the three-point leveling method is used: first use the tripod of the laser transmitter for rough adjustment , To ensure that the first laser beam can hit the target frame of the three reference points, and then use the coarse and fine adjustment screws on the laser transmitter to make fine adjustments, and adjust the height difference of the three poi...

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Abstract

The invention discloses a detection method for parallelism and coaxiality of flanges at two ends of a pylon, which comprises the following steps: the flange parallelism measuring function of a laser planometer is adopted to measure the parallelism; the parallelism between faces are switched to the parallelism between lines; the parallelism at horizontal positions of mutually perpendicular diameters of to-be-measured faces respectively; therefore, the coaxiality of the parallelism of two faces is obtained. The detection method is relatively simple, does not need to adjust the level, does not need to manufacture massive horizontal moulding beds so as to greatly save materials, does not need to occupy massive field specially for a special measuring field so as to greatly relieve the problem of the turnover of the field, allows the production process to be smoother, and improves the production efficiency.

Description

technical field [0001] The invention relates to a method for detecting the parallelism and coaxiality of flanges at both ends of a tower section, and belongs to the special field of wind power generation. Background technique [0002] At present, the method of measuring the parallelism and coaxiality of flanges is the horizontal tire frame measurement method or the flange centering method, but there are many disadvantages: 1. It is necessary to make a fixed horizontal tire frame, which consumes a lot of manpower and material resources, and requires regular inspection. Check the tire frame; 2. It takes up a lot of space and has a great impact on the production process of the workshop; 3. The measurement is more cumbersome, the adjustment is more inconvenient, the adjustment time is too long, the entire measurement process takes a long time, and has a greater impact on the production process; 4. The traditional method of parallelism is to measure by hanging a plumb line, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/26G01B11/27
Inventor 高险峰戴锦明马飞何蓓蓓
Owner AVIC HONGBO WINDPOWER EQUIP
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