Laser azimuth instrument

An azimuth and laser technology, applied in the field of laser azimuth, can solve the problem of low measurement accuracy and achieve the effect of high accuracy and simple operation

Active Publication Date: 2013-05-08
HUAINAN MINING IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a laser azimuth, which is used to overcome the defects in the prior art, solve the technical problem of low measurement accuracy in the prior art, and realize accurate and simple measurement

Method used

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Experimental program
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Embodiment 1

[0017] Such as figure 1 As shown, the embodiment of the present invention provides a kind of laser azimuth instrument, and this laser azimuth instrument is made of angle ruler 1, ruler 2, sliding seat, laser instrument 4 and level instrument 6; Angle ruler is a sector frame, and this sector frame is composed of radial The frame 11, the arc-shaped frame 13 and the radial frame 12 are surrounded by (in this embodiment, integrally formed), the angle between the radial frame 11 and the radial frame 12 can be between 0 degrees and 180 degrees, Specifically, it is 30 degrees, 60 degrees, 90 degrees, 120 degrees, 150 degrees, etc., which can be selected according to the angle to be adjusted. The arc frame 9 forming the fan-shaped frame is provided with a scale, and the scale 2 is a strip-shaped plate with one end of the scale 2 Rotatingly connected with the center of the fan-shaped frame, the other end of the scale is provided with an observation hole 3 corresponding to the scale; th...

Embodiment 2

[0020] Such as Figure 6-8 As shown, as a further improvement of Embodiment 1, in order to reduce the calculation, the angle reading observed through the observation hole 3 is the angle between the drill body 10 and the center line, so that the reading is more intuitive, and the fan-shaped frame The central angle is 90 degrees, that is, the angle between the radial frame 11 and the radial frame 12 is 90 degrees. During use, the radial frame 11 of the 90-degree scale is attached to the rig body 10, i.e. c=90, a=b is obtained by a=90+b-c, and the angle b read from the observation hole 3 is The angle a between the drill body and the center line is more convenient to use and saves calculation.

[0021] The scale 2 is rotatably connected with the angle ruler 1 through a pin shaft 7 . Such as Figure 4 As shown, the bottom of the base plate 5 is provided with a chute 52 , and the scale 2 is placed in the chute 52 . The structure is simple and easy to manufacture.

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Abstract

The invention provides a laser azimuth instrument used for measuring coal mine downhole drilling azimuth. The laser azimuth instrument comprises an angle ruler, a scale, a sliding seat, a laser instrument and a spirit level, the angle ruler is a fan-shaped frame which is formed by enclosing of two radial borders and an arc-shaped border, graduations are arranged on the arc-shaped border, the scale is a strip plate, one end of the scale is rotationally connected to the circle center position of the fan-shaped frame, an observation hole is arranged at the position, corresponding to the graduations, at the other end of the scale, the sliding seat is provided with a bottom plate, a mounting hole is arranged on the bottom plate, the laser instrument is arranged inside the mounting hole, the spirit level is fixed on the bottom plate which is slidingly connected with the scale, the fan-shaped frame, the strip plate and the bottom plate are parallel to one another, and an observation hole is arranged at the position, corresponding to the mounting hole, on the strip plate in the length direction. The fan-shaped frame achieves accurate measurement and solves the technical problem of measurement inaccuracy due to external disturbance in the prior art.

Description

technical field [0001] The invention relates to the technical field of azimuth measurement, in particular to a laser azimuth instrument suitable for measuring the azimuth of an underground coal mine borehole. Background technique [0002] During the construction of underground coal mine drilling, compass measurement or azimuth ruler is generally used to measure the drilling azimuth. The compass is used to measure the drilling azimuth. Since the roof support of the underground drilling site is basically supported by anchor nets or U-shaped shed metal (iron) supports, and the drilling rig itself is also iron, there is a certain degree of magnetic field. It has a great influence on the accuracy of the compass. Using the azimuth ruler to measure the drilling azimuth requires drawing down the center line of the drilling site as a reference line. Due to the influence of wind, the center line drifts, and the stability of the reference line directly affects the accuracy of the meas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/024
Inventor 李昌宝苏丽君刘涛陈功胜汪金业汪峰荣
Owner HUAINAN MINING IND GRP
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