Rapid calibration device and method based on multi-edge drill rod

Abstract

The invention provides a quick calibration device and method based on a multi-edge drill rod, the quick calibration device comprises a drill rod and a computer, a data acquisition circuit is embedded in the drill rod and is electrically connected with the computer, and the data acquisition circuit is used for acquiring a calibration coefficient of a calibration position and uploading the calibration coefficient to the computer; the computer is used for carrying out data processing on the calibration coefficient to obtain a correction coefficient, the drill rod is polygonal, the number of the edges of the drill rod is n, the rapid calibration device further comprises a disc, a plurality of first baffles are arranged on the disc in the circumferential direction of the disc, the first baffles are arranged in the radial direction of the disc, the length of each first baffle is smaller than the radius of the disc, and the first baffles are arranged in the radial direction of the disc. The disc is provided with a plurality of first baffles, the first baffles divide the disc into n equal parts, the disc is further provided with a multi-edge through hole, the center axis of the multi-edge through hole and the center axis of the disc are collinear, the number of edges of the multi-edge through hole is n, the multi-edge through hole is matched with the drill rod, the disc is provided with a due north guide line in the radial direction of the disc, and n is larger than or equal to 3.

Description

technical field [0001] The invention belongs to the field of underground drilling in coal mines, and in particular relates to a rapid calibration device and method based on a multi-edge drill pipe. Background technique [0002] Coal mine is an important pillar of my country's national economy, and the safety of coal mine is very important, which seriously affects the life safety of miners. Looking at the characteristics of coal mine accidents, gas and water hazards are the two most important coal mine accidents. Drilling technology is one of the most direct and effective means to control and prevent coal and gas outbursts and water hazards. With the development of technology, drilling technology has developed from ordinary drilling technology to directional drilling technology. The trajectory measurement and control of the directional drilling process are the two most important aspects of the drilling process. The measurement of the drilling trajectory is usually construct...

AI Technical Summary

Problems solved by technology

[0004] At present, the calibration of the attitude measurement drill pipe needs to use a special standard turntable. During the calibration, the drill pipe is installed on the special standard turntable. Two people are required to perform the operation. One person operates the standard turntable to rotate multiple positions in different spaces, and the other person The sensor is used to collect attitude data. In order to ensure that the operator can adjust the turntable to an accurate position, sufficient time must be reserved between each two measurement position points. The collected data is obtained through a related algorithm to obtain the error coefficient, and then through settlement, the obtained The parameters of the corrected inclination angle, tool face angle, and azimuth angle, this calibration process requires two people to operate, and there needs to be ample time interval between each two position points for the operator to adjust the turntable and data acquisition, so in the calibration In the case of a large number of points, the labor cost is huge. Since each position point of the turntable is manually adjusted, there is a calibration error, and the more points, the greater the error and low accuracy. In severe cases, the calibration process may fail. It is conducive to the production of large quantities of equipment. Secondly, the turntable is expensive according to the accuracy and degree of automation, and the universality and versatility are poor.

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