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Underground angle measuring and calculating instrument

A measuring instrument and angle technology, applied in the direction of measuring angles, instruments, measuring devices, etc., can solve problems such as low efficiency, impossible memory, and electronic calculators that are not explosion-proof, and achieve the effect of improving work efficiency

Inactive Publication Date: 2014-01-29
南通市海门雪盾冷冻设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Slope gauges and geological compasses are limited to collecting angle data and cannot perform simple angle function calculations
It is impossible for engineering and technical personnel to memorize the function values ​​of all angles in the underground field; at the same time, the electronic calculator cannot be brought into the underground for use because it is not explosion-proof
For example: A fault with a drop of 5 meters is encountered in front of a coal tunnel, and construction needs to be carried out at an angle of 15 degrees. How many meters is expected to expose the entire coal? What is the 100-meter penetration height of an excavation roadway on-site measurement of 3° penetration construction? This series of problems is difficult to calculate relatively accurately in the underground
[0004] At present, in most cases, the angle data is collected underground, and then the construction plan is determined after taking it to the surface for calculation. The work efficiency is obviously not high.

Method used

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  • Underground angle measuring and calculating instrument
  • Underground angle measuring and calculating instrument
  • Underground angle measuring and calculating instrument

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0025] Example 1, find the slope

[0026] Such as figure 2 , 3 As shown, put one side of the downhole angle measuring instrument under the object to be measured, and the wire rope with the pendant hanging on it will naturally droop. , it is necessary to judge whether the actual angle is the supplementary angle of the reading or the reading itself according to the situation on site; figure 2 The measured actual angle is the complementary angle of the reading, image 3 Measured actual angle in degrees.

example 2

[0027] Example 2. Find the function value or reverse the angle

[0028] Correspond the wire rope with the known angle. The value corresponding to the angle direction and the vertical length dial of the wire rope is the tangent value of the angle. The wire rope is fixed on the edge of the angle dial, and then the remaining wire rope is taken horizontally The value corresponding to the vertical length dial is the sine value of the angle, and the value corresponding to the horizontal length dial after the string is perpendicular to the edge of the angle dial is the cosine value of the angle, such as figure 1 shown; the angle can also be reversed according to this method. In a right triangle, the sine (sin) of the angle calculated according to trigonometric functions is equal to the ratio of the opposite side to the hypotenuse; the cosine (cos) is equal to the ratio of the adjacent side to the hypotenuse; the tangent (tan) is equal to the ratio of the opposite side to the adjacent...

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Abstract

The invention discloses an underground angle measuring and calculating instrument. The underground angle measuring and calculating instrument is characterized in that a square scale surface is comprised; an angle dial (1) is arranged on the square scale surface through taking one right angle of the square scale surface as a circle center and taking the square side length as a radius, a dial centre point (2) is movably connected with a pointer (3) which can sag freely by self-gravity, and the two sides,opposite to the dial centre point, of the square scale surface are respectively provided with a vertical length dial (4) and a horizontal length dial (5); and the scale values of the vertical length dial (4) and the horizontal length dial (5) are values formed by uniformly dividing the edges of the dials into 100 equal parts, and the maximum scale value is arranged at the joint of the vertical length dial (4) and the horizontal length dial (5). By using the underground angle measuring and calculating instrument disclosed by the invention, the angle data can be directly measured, and the data relevant to angle function values can be timely and accurately read as well; and a situation that the technical personnel can learn design parameters and schemes only after calculating or inquiring information is broken.

Description

technical field [0001] The invention relates to an angle measuring instrument. Background technique [0002] For a long time, the measurement and utilization of angles in underground construction design of coal mines has been very frequent. How to quickly and accurately measure various angles underground and calculate the relevant function values ​​of angles has become one of the many factors that affect the rapid determination of construction design schemes underground. . [0003] At present, the tools for measuring angles underground include: mining gradient gauges, geological compasses and other tools. Slope gauges and geological compasses are limited to collecting angle data and cannot perform simple angle function calculations. It is impossible for engineers and technicians to memorize the function values ​​of all angles in the downhole field; at the same time, the electronic calculator cannot be brought into the downhole for use because it is not explosion-proof. Fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C9/12G01C1/00
Inventor 袁中帮周宇
Owner 南通市海门雪盾冷冻设备有限公司