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Device for determining punching shape of coal seam and using method thereof

A measurement device and coal seam technology, which is applied in the directions of measurement, earthwork drilling, wellbore/well components, etc., can solve the problems of inaccurate measurement of aperture, a large number of manual operations, and unsatisfactory results, so as to achieve comprehensive coverage and reduce labor Operation, data reliable effect

Active Publication Date: 2019-07-26
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a defect in this method of measuring by opening the measuring rod. When the shape of the hole is irregular, the hole diameter cannot be accurately measured.
At the same time, the calculation is cumbersome, the effect is not ideal, and a lot of manual operation is required

Method used

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  • Device for determining punching shape of coal seam and using method thereof
  • Device for determining punching shape of coal seam and using method thereof
  • Device for determining punching shape of coal seam and using method thereof

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] Such as Figure 1 to Figure 3 As shown, a measuring device for the shape of a coal seam punching hole comprises a telescopic rod 1, and the extended end of the telescopic rod 1 is connected with a hollow rail rod 2, and the distance measuring box 3 is nested on the rail rod 2. The distance measuring box 3 is provided with a first gear 4 which is slidingly connected with the track bar 2, the first gear 4, the distance measuring box 3 and the track bar 2 ...

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Abstract

The invention discloses a device for determining the punching shape of a coal seam and a using method thereof. The device comprises a telescopic rod, wherein a hollow rail rod is connected to the telescopic rod, and a ranging box is nested on the rail rod; the ranging box is internally provided with a first gear slidably connected with the rail rod, a fixed rod is arranged on the first gear, one end of the fixed rod penetrates into the rail rod, and a first micro motor is fixed to the end, penetrating into the rail rod, of the fixed rod; an output shaft of the first micro motor is provided with a second gear, and the rail rod is internally provided with a strip-shaped tooth plate meshing with the second gear; a second micro motor is fixed into the ranging box, and an output shaft of the second micro motor is provided with a third gear meshing with the first gear; a limiting rod is fixed to the first gear, and the two ends of the limiting rod abut against the inner walls of the two sides of the ranging box; and a laser rangefinder is arranged in the ranging box. According to the device for determining the punching shape of the coal seam and the using method thereof, the measurementof the diameter and depth of a cavity-forming hole can be realized effectively and accurately, the form of the hole is restored, and meanwhile, the device is easy to operate, accurate and reliable andhigh in adaptability.

Description

technical field [0001] The invention relates to the field of measuring the shape of a coal seam punching hole, in particular to a measuring device for the shape of a coal seam punching hole and a method for using the same. Background technique [0002] Coal resources, as the main energy source in my country, account for more than 60% of consumption. The frequent occurrence of coal accidents caused by gas restricts the safe mining of coal. Gas drainage is a necessary way for safe coal mining. In most coal seams in my country, the geological conditions are complex and the coal seams have poor air permeability, which seriously restricts the efficiency of gas drainage. Efficiency must be improved through hydraulic punching, hydraulic slotting, and other strengthening measures, and hydraulic punching is widely used in mines where gas drainage is difficult in my country because of its simple operation and strong adaptability. [0003] Hydraulic punching is to create holes in the...

Claims

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Application Information

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IPC IPC(8): E21B47/08
CPCE21B47/08
Inventor 刘清泉卢彦飞褚鹏程远平郝从猛王德洋
Owner CHINA UNIV OF MINING & TECH
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