System for monitoring roadway floor heave in coal mine production

Abstract

The utility model discloses a system for monitoring roadway floor heave in coal mine production, which comprises a steel wire rope, the upper end of the steel wire rope is fixed on the side part of a roadway, and the lower end of the steel wire rope firstly penetrates through a first detection hole formed in the side part of the roadway from top to bottom and then penetrates through a second detection hole which is horizontally formed and is formed from the side part to the bottom of the roadway; the third detection hole is formed downwards from the bottom of the roadway from top to bottom, and then is clamped at the lowermost end of the third detection hole; the first guide wheel is installed on the side portion of the roadway, and the second guide wheel is located at the lower end of the first detection hole and fixed; the steel wire rope is redirected by 90 degrees; the third guide wheel is positioned at the junction of the second detection hole and the third detection hole, is fixed and is used for changing the direction of the steel wire rope by 90 degrees; normal use of the section of the roadway is not affected, the most accurate result can be obtained, on-site real-time display can be achieved, and cost is low.

Description

Technical Field

[0001] The utility model belongs to the field of tunnel floor drum detection, in particular to a system for monitoring tunnel floor drum in coal mine production. Background Art

[0002] The bottom drum of the tunnel has a great impact on production. During the production process, the bottom drum needs to be continuously monitored in order to timely grasp the surrounding rock deformation and mining pressure conditions. The traditional monitoring method is to set a monitoring probe sensor in the middle of the tunnel where the tunnel bottom drum is the largest. This method is direct, intuitive and cheap. The problem is that it affects the utilization of the tunnel section, affects production, and is often interfered by human interference and cannot obtain accurate data, so it is not suitable for most cases. The laser ranging sensor that has appeared in recent years can be installed on the roof without affecting the tunnel section, and can be connected to the network to continuously upload data. However, the disadvantage is that the tunnel roof also has a certain amount of subsidence, which affects the reliability of the monitoring bottom plate deformation data. On the other hand, there are many factors on the surface that affect the measurement accuracy and even produce erroneous results, which is the biggest hidden danger of safety monitoring. The existing technology either needs to occupy the key position of the tunnel, affecting production and safety; or the measurement data is inaccurate or even wrong, which will lead to adverse consequences. Utility Model Content

[0003] The utility model aims to provide a system for monitoring the floor drum of a roadway in coal mine production, so as to solve the problems that the existing roadway floor drum detection is difficult, the result is inaccurate, and the normal use of the roadway is affected.

[0004] The utility model adopts the following technical scheme: a system for monitoring the bottom drum of a roadway in coal mine production, comprising:

[0005] The upper end of the steel wire rope is fixed on the side of the tunnel, and the lower end thereof first passes through the first detection hole opened on the side of the tunnel from top to bottom, and then passes through the second detection hole opened horizontally from the side to the bottom of the tunnel, and finally passes through the third detection hole opened from the bottom of the tunnel from top to bottom and is stuck at the lowest end of the third detection hole; the first detection hole, the second detection hole, and the third detection hole are connected in sequence;

[0006] The first guide wheel is installed on the side of the tunnel and is used to redirect the upper end of the wire rope so that the upper end of the wire rope hangs down and is easy to pull downward;

[0007] The second guide wheel is located at the lower end of the first detection hole and is fixed; it is used to redirect the wire rope 90 degrees;

[0008] The third guide wheel is located at the junction of the second detection hole and the third detection hole and is fixed, and is used to redirect the wire rope 90 degrees;

[0009] Among them, the wire rope is used when the tunnel floor drum occurs, the third detection hole is squeezed upward and becomes shallower, thereby causing the wire rope in the third detection hole to bend, and the wire rope is pulled through the upper end of the wire rope until the wire rope in the third detection hole becomes straight and cannot be pulled, and then the deformation of the tunnel floor drum is judged by observing the distance of the wire rope pulled outward.

[0010] Furthermore, the lower end of the steel wire rope is hooked at the lowermost end of the third detection hole through a hook.

[0011] Furthermore, the first guide wheel is installed on the detection plate, and the detection plate is fixed on the side of the tunnel. A mounting hole is horizontally opened through the center of the detection plate, and the first guide wheel is installed in the mounting hole.

[0012] Furthermore, the detection plate is marked with a scale and is arranged close to the first guide wheel.

[0013] Furthermore, a guide tube is placed in the second detection hole. The guide tube is arranged horizontally, and its inner cavity is used for the wire rope to pass through and avoid being pressed when the bottom drums.

[0014] The beneficial effects of the utility model are:

[0015] The utility model does not need to arrange equipment in the middle of the tunnel bottom drum, thus avoiding the influence on production. The deformation of the bottom drum is displayed in real time, and the operation is convenient and intuitive.

[0016] The utility model does not affect the normal use of the lane and can avoid the influence of activities in the lane on the equipment;

[0017] The utility model can directly display the bottom drum deformation through the scale on the detection plate, which is clear at a glance, and the scale is consistent with the bottom drum deformation direction, so that the observer can see the result at a glance at any time;

[0018] The utility model is not affected by external interference, and the measurement is accurate and avoids the influence of top plate deformation;

[0019] The utility model does not affect the normal use of the tunnel section, can obtain the most accurate result, can display it in real time on site, and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 A schematic diagram of the detection hole of the utility model;

[0022] Figure 3 It is a schematic diagram of the direction of the steel wire rope of the utility model.

[0023] Among them: 10, wire rope; 11, first detection hole; 12, second detection hole; 13, third detection hole; 14, first guide wheel; 15, second guide wheel; 16, third guide wheel; 17, tunnel; 18, guide tube; 19, hook; 20, detection plate. DETAILED DESCRIPTION

[0024] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] The utility model discloses a system for monitoring the bottom drum of a roadway in coal mine production. Figure 1-3 As shown, it includes a steel wire rope 10, a first guide wheel 14, a second guide wheel 15 and a third guide wheel 16.

[0027] The upper end of the wire rope 10 is fixed on the side of the tunnel 17, and the lower end of the wire rope 10 first passes through the first detection hole 11 opened on the side of the tunnel 17 from top to bottom, and then passes through the second detection hole 12 which is horizontally opened from the side to the bottom of the tunnel 17, and finally passes through the third detection hole 13 opened from the bottom of the tunnel 17 from top to bottom and is stuck at the lower end of the third detection hole 13; the first detection hole 11, the second detection hole 12, and the third detection hole 13 are connected in sequence.

[0028] The first guide wheel 14 is installed on the side of the tunnel 17. The first guide wheel 14 is used to redirect the upper end of the wire rope 10, thereby making the upper end of the wire rope 10 hang down and facilitate downward pulling.

[0029] The second guide wheel 15 is located at the lower end of the first detection hole 11 and is fixed; the second guide wheel 15 is used to redirect the steel wire rope 10 by 90 degrees.

[0030] The third guide wheel 16 is located at the junction of the second detection hole 12 and the third detection hole 13 and is fixed. The third guide wheel 16 is used to redirect the steel wire rope 10 by 90 degrees.

[0031] The steel wire rope 10 is used to press the third detection hole 13 upward and shallow it when the tunnel 17 has a bottom drum, so that the steel wire rope 10 in the third detection hole 13 is bent, and the steel wire rope 10 is pulled by the upper end of the steel wire rope 10 until the steel wire rope 10 in the third detection hole 13 becomes straight and cannot be pulled, and then the bottom drum deformation of the tunnel 17 is judged by observing the distance of the steel wire rope 10 pulled outward. The lower end of the steel wire rope 10 is clamped at the lowermost end of the third detection hole 13 by the hook 19.

[0032] The first guide wheel 14 is mounted on the detection plate 20, which is fixed on the side of the lane 17. A mounting hole is horizontally provided through the center of the detection plate 20, and the first guide wheel 14 is mounted in the mounting hole. The detection plate 20 is marked with scales and is arranged close to the first guide wheel 14.

[0033] A guide tube 18 is placed in the second detection hole 12. The guide tube 18 is arranged horizontally, and the inner cavity of the guide tube 18 is used for the steel wire rope 10 to pass through and avoid being pressed when the bottom drums.

[0034] The utility model does not need to arrange equipment in the middle position of the tunnel bottom drum, so as to avoid affecting the production. The deformation of the bottom drum is displayed in real time, and the operation is convenient and intuitive. It does not affect the normal use of the tunnel section, and can obtain the most accurate results. It can be displayed in real time on site, and the cost is low.

[0035] The method of using the utility model is:

[0036] After the utility model is installed, as time goes by, the tunnel 17 continues to bottom bulge, and when the bottom bulge occurs, the third detection hole 13 is squeezed upward and becomes shallower, thereby bending the wire rope 10 located in the third detection hole 13, and then the wire rope 10 is pulled through the upper end of the wire rope 10 until the wire rope 10 located in the third detection hole 13 becomes straight and cannot be pulled, and then the deformation of the bottom drum of the tunnel 17 can be judged by observing the distance of the wire rope 10 pulled outward.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A system for monitoring tunnel floor heave in coal mine production, characterized in that: include: A steel wire rope (10), wherein the upper end of the steel wire rope (10) is fixed on the side of the tunnel (17), and the lower end of the steel wire rope (10) first passes through a first detection hole (11) provided on the side of the tunnel (17) from top to bottom, then passes through a second detection hole (12) provided horizontally from the side to the bottom of the tunnel (17), and finally passes through a third detection hole (13) provided downward from the bottom of the tunnel (17) and is then stuck at the lowest end of the third detection hole (13); the first detection hole (11), the second detection hole (12), and the third detection hole (13) are connected in sequence; A first guide wheel (14) is installed on the side of the tunnel (17) and is used to redirect the upper end of the steel wire rope (10), thereby making the upper end of the steel wire rope (10) hang down and be easy to pull downward; A second guide wheel (15) is located at the lower end of the first detection hole (11) and is fixed; it is used to redirect the steel wire rope (10) by 90 degrees; A third guide wheel (16) is located at the junction of the second detection hole (12) and the third detection hole (13) and is fixed, and is used to redirect the steel wire rope (10) by 90 degrees; The steel wire rope (10) is used to press the third detection hole (13) upward to become shallower when the tunnel (17) has a bottom drum, thereby causing the steel wire rope (10) located in the third detection hole (13) to bend, and the steel wire rope (10) is pulled by the upper end of the steel wire rope (10) until the steel wire rope (10) located in the third detection hole (13) becomes straight and cannot be pulled, and then the bottom drum deformation of the tunnel (17) is judged by observing the distance of the steel wire rope (10) pulled outward.

2. A system for monitoring tunnel floor heave in coal mine production according to claim 1, characterized in that: The lower end of the steel wire rope (10) is clamped at the lowermost end of the third detection hole (13) through a clamping hook (19).

3. A system for monitoring tunnel floor heave in coal mine production according to claim 1, characterized in that: The first guide wheel (14) is mounted on a detection plate (20), and the detection plate (20) is fixed on the side of the lane (17), and a mounting hole is horizontally opened through the center of the detection plate (20), and the first guide wheel (14) is mounted in the mounting hole.

4. A system for monitoring tunnel floor heave in coal mine production according to claim 3, characterized in that: The detection plate (20) is marked with scale and is arranged close to the first guide wheel (14).

5. The system for monitoring tunnel floor heave in coal mine production according to claim 1, characterized in that: A guide tube (18) is placed in the second detection hole (12). The guide tube (18) is arranged horizontally, and its inner cavity is used for the steel wire rope (10) to pass through and avoid being pressed when the bottom drums.

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