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A method for simultaneously detecting the circular cross-section profile and coaxiality of steel pipes for power towers at multiple points

A technology of electric power tower and circular section is applied in the field of multi-point simultaneous detection of circular section profile and coaxiality of electric power tower steel pipe, which can solve the problems that the section profile cannot be measured, and the error size of the actual circular section profile and the designed circular section profile cannot be known. , to achieve the effect of convenient and fast detection and accurate detection value

Active Publication Date: 2018-09-11
安徽天康特种钢管有限公司
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Problems solved by technology

[0003] The current processing method can only measure the diameter of the middle cross-sectional profile of the steel pipe, but cannot measure the cross-sectional profile, that is, it is impossible to know the error between the actual circular cross-sectional profile and the designed circular cross-sectional profile

Method used

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  • A method for simultaneously detecting the circular cross-section profile and coaxiality of steel pipes for power towers at multiple points
  • A method for simultaneously detecting the circular cross-section profile and coaxiality of steel pipes for power towers at multiple points
  • A method for simultaneously detecting the circular cross-section profile and coaxiality of steel pipes for power towers at multiple points

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0024] like figure 1 , figure 2 and image 3 As shown, a detection device capable of simultaneously detecting the circular section profile of steel pipes in power towers at multiple points, including a reference platform 1, an arc-shaped reference groove 11, a left sliding column 2, a positioning shaft 21, a right sliding column 3, and a rotating shaft 31 , fixed head 32, indexer 33, central shaft 321, electromagnet 322, spring 323, arc-shaped metal plate 324, elastic wear-resistant layer 325, guide section 326, open end 327, steel pipe 4, horizontal slide bar 5, telescopic bar 51 , horizontal chute 52, linear motor 53, distance sensor 6 and camera 61 and other main technical features.

[0025] A detection device capable of simultaneously detecting the circular cross-section profile of steel pipes in power towers at mult...

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Abstract

The invention discloses a method for detecting the circular cross section contour and coaxiality of an electric iron tower steel pipe from multiple points simultaneously. The method includes the steps of installing a steel pipe circular cross section contour detection apparatus, placing a steel pipe, fixing the steel pipe, positioning with a distance sensor, and detecting the circular cross section contour and coaxiality of the steel pipe. A circular cross section contour curve can be drawn by sequentially connecting point 1, point 2, point 3 till the point n that are recorded by PLC, sequentially connecting point 1', point 2', point 3' till point n', sequentially connecting point 1'', point 2'', point 3'' till point n'', and conducting fillet processing to fit and obtain the circular cross sections of three cross sections of the steel pipe to be tested. Coaxiality can be calculated by comparing the greatest difference between point 1, point 1' and point 1'' or point n, point n' and point n'' with a set coaxiality to obtain the coaxiality calculation result. Circular cross section contour of any cross section of a steel pipe can be detected, and the coaxiality of the steel pipe can also be detected.

Description

technical field [0001] The invention relates to a detection method using an electric power detection device, in particular to a multi-point simultaneous detection method for the circular section profile and coaxiality of steel pipes of electric iron towers. Background technique [0002] The power transmission process requires a large number of power towers, which are divided into angle steel towers and steel pipe towers. Angle steel towers are mainly used in mountainous areas where transportation is inconvenient. A large number of steel pipe towers with simple structure are used in plain areas. The main structure of the steel pipe tower is a steel pipe, and the tower body uses bolts to connect the steel pipes one by one to erect. The steel pipe is processed by flat cutting, bending, gap welding of the pipe body, welding of the port, the end and the flange, and hot-dip galvanizing on the surface of the steel pipe. The steel pipe is processed by bending, and the rectangular...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/20G01B21/24
CPCG01B21/20G01B21/24
Inventor 赵艳丽
Owner 安徽天康特种钢管有限公司
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