Mine roof settlement monitoring device

Abstract

A mine roof settlement monitoring device comprises a reference sensor and a plurality of monitoring sensors, the reference sensor is arranged at a stable rock, and the plurality of monitoring sensors are uniformly scattered and arranged on a mine bottom plate; mounting brackets are arranged at the bottoms of the reference sensor and the monitoring sensor, each mounting bracket comprises at least three supporting legs, and a gradienter is arranged on each mounting bracket. The settlement monitoring device can improve the mine roof settlement monitoring precision.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of settlement monitoring, and particularly relates to a mine roof settlement monitoring device. BACKGROUND

[0002] In the process of mining, the settlement of the roof is an important parameter for evaluating the safety of the mine. The existing roof monitoring method usually requires the equipment to directly contact the floor to obtain accurate settlement data.

[0003] But these methods may cause data errors due to uneven contact surface or floor heave and other external disturbances; in addition, the equipment contacting the floor is easily affected by the mine environment, resulting in errors and failures, reducing the monitoring accuracy. UTILITY MODEL CONTENT

[0004] The utility model provides a mine roof settlement monitoring device to solve the problem of poor mine roof settlement monitoring precision.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of:

[0006] A mine roof settlement monitoring device, comprising a reference sensor and a plurality of monitoring sensors, the reference sensor is arranged at a stable rock, and the monitoring sensors are uniformly scattered and arranged on the mine floor;

[0007] The reference sensor and the monitoring sensor bottom are provided with mounting brackets, the mounting bracket comprises at least three legs, and a level is arranged on the mounting bracket.

[0008] Further, the mounting bracket comprises a mounting disc, a plurality of legs are fixed around the peripheral side of the mounting disc, the level is arranged close to the reference sensor or the monitoring sensor, and the level is arranged at the center of the mounting disc.

[0009] Further, the leg comprises an anchoring segment for anchoring into the rock, an installation segment for detachable connection with the mounting disc, and an adjusting segment arranged between the anchoring segment and the installation segment, the adjusting segment is rotationally connected with the anchoring segment, and the adjusting segment is threadedly connected with the installation segment.

[0010] Further, one end of the adjusting segment for connecting with the mounting disc is provided with a spherical hinge head seat, and the spherical hinge head seat is detachably fixed on the mounting disc.

[0011] Further, a mounting ring groove is formed in the side wall of the anchoring segment close to the adjusting segment, and an annular sliding block is formed in the inner wall of the adjusting segment for slidingly inserting into the mounting ring groove.

[0012] Further, the adjusting section comprises a first half and a second half, both ends of the first half and the second half are provided with connecting lugs, and the first half and the second half are detachably spliced.

[0013] Further, the anchor section is coated with a rust-proof coating.

[0014] Further, the anchor section is obliquely arranged in the stratum, and the anchor section is provided with a water-blocking steel cylinder around the section arranged in the stratum.

[0015] The utility model discloses can reach following beneficial effects:

[0016] The application uses the reference sensor as the positioning basis, and the multiple monitoring sensors are evenly arranged on the mine floor, when the settlement of the mine roof needs to be monitored, the monitoring sensors are used to measure the settlement of each point, whether the monitoring sensor is settled is observed by rechecking the relative position of the monitoring sensor and the reference sensor, and then the absolute amount of the settlement of the mine roof can be calculated by the settlement amount of the mine roof measured by the monitoring sensor and the relative displacement of the settlement of the monitoring sensor, and the uneven settlement of the mine floor can also be monitored.

[0017] The installation support is arranged at the bottom of each reference sensor and monitoring sensor, when the uneven settlement occurs at the bottom of the reference sensor and monitoring sensor, the settlement amount of each supporting leg is different, and then the level meter on the installation support is no longer centered, so that the staff can be reminded that the monitoring result at this place may have errors, and further rechecking is needed, and the measurement accuracy of the settlement monitoring device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described below in combination with the drawings and examples:

[0019] Fig. 1 It is the structural schematic diagram of the monitoring sensor and the installation support of the utility model;

[0020] Fig. 2 It is the structural schematic diagram of the supporting leg of the utility model;

[0021] Fig. 3 It is the explosion structural schematic diagram of the supporting leg of the utility model.

[0022] In the drawings, the components represented by each reference numeral are listed as follows:

[0023] 1. Monitoring sensor; 2. Mounting bracket; 21. Support leg; 211. Anchoring section; 2111. Mounting annular groove; 212. Mounting section; 213. Adjustment section; 2131. First half; 2132. Second half; 2133. Connecting ear plate; 2134. Annular slider; 214. Ball joint head seat; 22. Mounting plate; 3. Level; 4. Water-blocking steel cylinder. Detailed Implementation

[0024] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0025] like Figs. 1 to 3 As shown, a mine roof settlement monitoring device includes a reference sensor and several monitoring sensors 1. A relatively stable area is selected within the mine, far from the impact of mining activities. The reference sensor is installed on stable rock or structures within this area to reduce the possibility of significant displacement during monitoring. Additionally, personnel need to periodically verify the position of the reference sensor. Several monitoring sensors 1 are evenly distributed across the mine floor. Multiple monitoring sensors 1 are used to monitor the settlement of various areas of the mine roof. To improve monitoring accuracy, the monitoring sensors 1 are laser rangefinders. Since uneven settlement also exists in the mine floor, simply using monitoring sensors 1 is insufficient for accurate measurement of the mine roof settlement. Therefore, a reference sensor is used. First, the monitoring sensors 1 detect whether their relative positions to the reference sensor have changed, and then the monitoring sensors 1 are used to measure the settlement of the mine roof.

[0026] In addition, when installing multiple monitoring sensors 1, a measuring instrument is used to locate each monitoring sensor 1 in three-dimensional space, recording the position information of the monitoring sensor 1 on the mine floor and inputting it into the data processing module. The data processing module establishes a geometric relationship model between the monitoring sensors 1 based on their spatial coordinates, including parameters such as distance and angle between the monitoring sensors 1. Through this model, the measurement results of each monitoring sensor 1 can be transformed into a unified coordinate system during data analysis, considering the influence of the relative positional relationship between the sensors on the measurement data, thereby more accurately assessing the settlement of the mine roof.

[0027] Each reference sensor and monitoring sensor 1 is provided with a mounting bracket 2 below, and the stable support of the reference sensor and monitoring sensor 1 is realized through the mounting bracket 2. The mounting bracket 2 comprises a mounting disc 22 and at least three legs 21, the reference sensor and monitoring sensor 1 are fixed to the center area of the mounting disc 22, and the plurality of legs 21 are uniformly and spacedly mounted on the mounting disc 22. The monitoring sensor 1 and the reference sensor are also provided with a level 3, and the level 3 is also provided in the center of the mounting disc 22. The level 3 can be a bubble level 3.

[0028] When the mine floor is unevenly subsided, because the fulcrums of the plurality of legs 21 are different, the subsidence amount is different, and then the mounting disc 22 is inclined, which causes the bubbles of the level 3 to be not centered, at this time, it reminds the staff that the mine floor is unevenly subsided, which may cause errors in the measurement accuracy, and the measurement results need to be rechecked.

[0029] The leg 21 comprises an anchoring segment 211, an adjusting segment 213 and a mounting segment 212 arranged in sequence, the anchoring segment 211 is used for anchoring into the rock, the adjusting segment 213 is used for adjusting the length of the leg 21, and the mounting segment 212 is used for connecting with the mounting disc 22. Specifically, the anchoring segment 211 is inclined outwardly into the stratum, and then the stable fixation of the mounting bracket 2 is realized by using the anchoring segment 211. Since the anchoring segment 211 needs to be punched into the stratum, the anchoring segment 211 is made of steel material, and rust-proof paint is coated on the outside of the anchoring segment 211 to reduce the rusting of the anchoring segment 211. Before the anchoring segment 211 is punched into the stratum, a water-blocking steel cylinder 4 is punched at the punching point, the length of the water-blocking steel cylinder 4 is greater than the length of the anchoring segment 211, and after the water-blocking steel cylinder 4 is punched, the anchoring segment 211 is punched into the water-blocking steel cylinder 4, and then the underground water is partially blocked by using the water-blocking steel cylinder 4 to reduce the contact between the underground water and the anchoring segment 211.

[0030] The adjusting segment 213 is rotationally connected with the anchoring segment 211. Specifically, the adjusting segment 213 comprises a first half 2131 and a second half 2132, and the first half 2131 and the second half 2132 form a cylindrical structure after splicing. The first half 2131 and the second half 2132 are provided with connecting lugs 2133 on both sides of the ends, and the detachable splicing of the first half 2131 and the second half 2132 can be realized by connecting the abutting connecting lugs 2133 through bolts and nuts. The side wall of the anchoring segment 211 near the adjusting segment 213 is provided with a mounting ring groove 2111, and the inner wall of the adjusting segment 213 is integrally formed with a ring-shaped sliding block 2134 for inserting into the mounting ring groove 2111. When the adjusting segment 213 is installed, the ring-shaped sliding block 2134 is inserted into the mounting ring groove 2111, and the relative rotation between the adjusting segment 213 and the anchoring segment 211 is realized, and the relative displacement between the adjusting segment 213 and the anchoring segment 211 is also limited.

[0031] The mounting section 212 is threadedly connected with the adjusting section 213, so that the length of the leg 21 can be adjusted by rotating the adjusting section 213, and when the mounting bracket 2 is inclined, the levelness of the mounting disc 22 can be adjusted by adjusting the length of each leg 21; the end of the mounting section 212 away from the adjusting section 213 is provided with a spherical hinge head base 214 which is detachably fixed to the mounting disc 22, so that the rotating connection between the mounting disc 22 and the leg 21 can be realized, thereby facilitating the leveling of the mounting disc 22.

[0032] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A mine roof subsidence monitoring device characterised by: It comprises a reference sensor arranged at stable rock and several monitoring sensors (1) arranged evenly on the mine floor. The reference sensor and the monitoring sensors (1) are both provided with mounting brackets (2) at the bottom, the mounting brackets (2) comprise at least three legs (21), and the mounting brackets (2) are provided with levels (3).

2. The mine roof settlement monitoring device of claim 1, wherein: The mounting bracket (2) comprises a mounting disc (22), and a plurality of legs (21) are fixedly arranged around the peripheral side of the mounting disc (22), the level (3) is arranged close to the reference sensor or the monitoring sensor (1), and the level (3) is arranged at the center of the mounting disc (22).

3. The mine roof settlement monitoring device of claim 1, wherein: The leg (21) comprises an anchoring section (211) for anchoring into rock, an installation section (212) for detachable connection with the mounting disc (22), and an adjusting section (213) arranged between the anchoring section (211) and the installation section (212), the adjusting section (213) is rotationally connected with the anchoring section (211), and the adjusting section (213) is threadedly connected with the installation section (212).

4. The mine roof settlement monitoring device of claim 3, wherein: One end of the adjusting section (213) for connection with the mounting disc (22) is provided with a spherical hinge head seat (214), and the spherical hinge head seat (214) is detachably fixed on the mounting disc (22).

5. The mine roof settlement monitoring device of claim 3, wherein: The side wall of the anchoring section (211) close to the adjusting section (213) is provided with an installation ring groove (2111), and the inner wall of the adjusting section (213) is provided with an annular sliding block (2134) for slidingly inserting into the installation ring groove (2111).

6. The mine roof settlement monitoring device of claim 5, wherein: The adjusting section (213) comprises a first half (2131) and a second half (2132), the first half (2131) and the second half (2132) are both provided with connecting ear plates (2133) at both ends, and the first half (2131) and the second half (2132) are detachably spliced.

7. The mine roof settlement monitoring device of claim 3, wherein: The anchoring section (211) is coated with a rust-proof coating.

8. The mine roof settlement monitoring device of claim 3, wherein: The anchoring section (211) is arranged obliquely in the stratum, and the peripheral side of the section of the anchoring section (211) inserted into the stratum is provided with a water-blocking steel cylinder (4).

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