Comprehensive Mechanized Filling Coal Mining Goaf Roof Dynamic Monitor

A comprehensive mechanized and filling coal mining technology, which is applied in mining equipment, mining equipment, earthwork drilling and mining, etc., can solve the problem of inability to measure the subsidence, and achieve the effect of reducing the difficulty of measurement, simple application and accurate measurement data

Inactive Publication Date: 2016-01-06
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the goaf is densely filled with solid materials, other equipment cannot measure the sinking of the roof above the densely filled material in the gob

Method used

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  • Comprehensive Mechanized Filling Coal Mining Goaf Roof Dynamic Monitor
  • Comprehensive Mechanized Filling Coal Mining Goaf Roof Dynamic Monitor
  • Comprehensive Mechanized Filling Coal Mining Goaf Roof Dynamic Monitor

Examples

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Embodiment Construction

[0022] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0023] figure 1 As shown, the comprehensive mechanized filling coal mining goaf roof dynamic monitor of the present invention is mainly composed of a monitoring assembly and a multi-stage telescopic rod; the monitoring assembly includes a chassis 12, a displacement meter support 9 arranged on the chassis 12, a displacement meter The base cylinder 5 is provided with a base cylinder 5, the base cylinder 5 is provided with a multi-stage telescopic rod, the base cylinder 5 is provided with a spring support 8 and a grating displacement meter 15 inserted in the spring support 8, so The grating displacement meter 15 described above includes four parts: a scale grating, an indicating grating, an optical system and a measuring system. When the scale grating moves relative to the indicating grating, it forms moiré fringes that are distributed roughly according to a s...

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Abstract

A dynamic state monitor of roof for filling coal mining goaf in a comprehensive and mechanized way is composed of a monitor base, a multiplestage telescopic rod and a floor offer (12). The monitor base is composed of a base cylinder (5), a spring (6), a transmission cable (13), a pattern displacement meter (15) and a guide rod (7). A displacement meter support (9), a protective port (11), a spring seat (8) and range limiting plates (16, 17) are arranged in the base cylinder. The pattern displacement meter (15) contains a chip (14). The base cylinder (5) is fixed on the floor offer (12) with screws. The spring (6) is arranged in the bayonet slot of the spring seat (8), the pattern displacement meter (15) is arranged in the bayonet slot of the displacement meter support (9), the guide rod (7) is directly connected to the pattern displacement meter (15), the guide rod (7)and the pattern displacement meter (15) are sleeved in the spring (6), and the transmission cable (13) is connected with the chip (14). The multiplestage telescopic rod is composed of a first stage rod (4), a second stage rod (20) and a third stage rod (21), wherein the first stage rod is installed in the base cylinder (5)and is in direct contact with the range limiting plates (16, 17) on the guide rod (7). The second stage rod (20) is fixed in the installation groove in the first stage rod (4) with a fastening bolt (19), and the third stage rod (21) and the second stage rod (20) are fixed with a fixing bolt (2). The monitor can directly and accurately monitor the dynamic subsidence amount of the roof, and is ingenious in structure and convenient to use.

Description

technical field [0001] The invention relates to a comprehensive mechanized filling coal mining goaf roof dynamic monitor, which is especially suitable for the working face in the filling coal mining goaf to detect the sinking amount of the roof. Background technique [0002] In filling coal mining, the average tamping force of the tamping mechanism behind the hydraulic support to the filling material is 2MPa, which can make the filling material preliminarily dense. Since the gob is densely filled with solid materials, other equipment cannot measure the sinking of the roof above the densely filled material in the goaf. However, the roof subsidence of the filling goaf has a direct impact on the failure pattern of the overlying strata and the surface subsidence, so it is very important to measure the roof subsidence of the filling goaf, and it is also an urgent problem to be solved on site. . Contents of the invention [0003] Technical problem: The purpose of the present i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F17/18
CPCE21F17/18
Inventor 张强张吉雄孙强李百宜殷伟李剑
Owner CHINA UNIV OF MINING & TECH
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