Mine tunnel support deformation monitoring device
The mine roadway support deformation monitoring device, which combines U-shaped columns and mounting columns, solves the problem that existing monitoring devices cannot adapt to the differences in the curvature of the roof support. It enables accurate monitoring of deformation in multiple directions, reduces costs, and improves safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG TAIXI ANHUI CONSULTING SERVICES CO LTD
- Filing Date
- 2025-09-12
- Publication Date
- 2026-07-14
AI Technical Summary
Existing mine roadway support deformation monitoring devices cannot adapt to the actual curvature differences of the roof support, resulting in monitoring blind spots and data deviations. Furthermore, multi-directional monitoring requires additional devices, increasing costs and complexity.
By combining U-shaped columns and mounting columns with gear drive and telescopic mechanisms, laser monitoring and ball bearing adaptation are achieved, enabling the roof protection panels with different curvatures to monitor lateral and longitudinal deformation.
It enables close-contact monitoring of roof linings with different curvatures, simplifies device installation, reduces equipment costs, and improves monitoring accuracy and safety.
Smart Images
Figure CN224499421U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mine support technology, and in particular to a mine roadway support deformation monitoring device. Background Technology
[0002] Mine roadway support is a core facility for ensuring the safety of underground operations. As a key component of the support structure, the deformation of the roof support plate is directly related to the stability of the roadway and the safety of personnel and equipment. Therefore, it is necessary to monitor the deformation status of the roof support plate in real time through professional monitoring devices and give timely warnings of potential collapse risks.
[0003] Existing mine roadway support deformation monitoring devices have significant limitations: Firstly, the contact monitoring components (such as the detection end that contacts the roof support) of most devices are in fixed positions and cannot be adapted to the actual curvature of the roof support. When there are differences in curvature in the inner wall of the roof support, the monitoring components are difficult to fit tightly against the roof support, which can easily lead to blind spots or data deviations. Secondly, traditional devices can only monitor deformation in a single direction (such as horizontal or vertical). If it is necessary to complete the all-round deformation monitoring of the roof support, multiple sets of devices need to be deployed, which increases equipment costs and installation complexity. Therefore, we propose a mine roadway support deformation monitoring device to solve this problem. Utility Model Content
[0004] The purpose of this application is to provide a mine roadway support deformation monitoring device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this application provides the following technical solution: a mine roadway support deformation monitoring device, comprising two U-shaped columns, two connecting columns fixedly installed on the sides of the two U-shaped columns that are close to each other, and mounting columns slidably installed on the two U-shaped columns, wherein the mounting columns are connected to the top of one of the U-shaped columns through a gear drive mechanism;
[0006] The top of the mounting column is evenly provided with multiple rectangular holes along the direction of the mounting column, and a rectangular column is slidably installed in each of the multiple rectangular holes. A light-transmitting tube is fixedly installed at the bottom of each of the multiple rectangular columns. A laser monitoring mechanism is installed at the bottom of the mounting column, and the laser monitoring mechanism corresponds to the position of the multiple light-transmitting tubes.
[0007] Each of the rectangular columns is equipped with ball bearings via a telescopic mechanism, and the tops of the ball bearings contact the inner top wall of the top plate.
[0008] Preferably, the laser monitoring mechanism includes two vertical plates fixedly installed at the bottom of the mounting column. A laser sensor is fixedly installed on the side of one of the vertical plates near the rectangular column, and a monitor is fixedly installed on the side of the other vertical plate. A laser receiving plate is fixedly installed on one side of the monitor, and the laser receiving plate, the laser sensor, and the positions of the multiple light-transmitting tubes correspond to each other.
[0009] Preferably, the gear drive mechanism includes a motor fixedly mounted on the top of the mounting column, a gear fixedly mounted on the output shaft of the motor, and a rack fixedly mounted on the top of the U-shaped column below the gear, the gear meshing with the rack.
[0010] Preferably, the telescopic mechanism includes a rectangular groove formed at the top of a rectangular column, a rectangular rod slidably installed in the rectangular groove, a ball groove formed at the top of the rectangular rod, a ball bearing rotatably installed in the ball groove, a threaded hole formed on one inner wall of the rectangular groove, a bolt threaded in the threaded hole, and one end of the bolt abutting against the side of the rectangular rod.
[0011] Preferably, the telescopic mechanism further includes two guide rods, each of which is slidably fitted with a guide block. The sides of the two guide blocks that are close to each other are fixedly connected to the two sides of the rectangular column. Each of the two guide blocks is fitted with a spring, and the two ends of the spring are respectively fixedly installed on the sides of the guide block and the mounting column that are close to each other.
[0012] Preferably, connecting plates are fixedly installed on both sides of the vertical plate connected to the laser sensor, one of the connecting plates has an audible and visual alarm installed on its side, and the other connecting plate has a power supply fixedly installed on its side.
[0013] Preferably, both ends of the mounting column are fixedly mounted with sliders, and the sides of the two U-shaped columns that are close to each other are provided with sliding grooves, and the two sliders are slidably mounted in the two sliding grooves respectively.
[0014] Preferably, the length of the plurality of rectangular columns decreases sequentially from the middle to both ends of the mounting column, and the bottom ends of the plurality of rectangular columns are located on the same horizontal plane.
[0015] In summary, the technical effects and advantages of this utility model are as follows:
[0016] This mine roadway support deformation monitoring device uses bolts to adjust the sliding position of a rectangular rod within a rectangular groove, allowing the ball bearings to adapt to and closely contact the inner top wall of the roof support plate with different curvatures. Simultaneously, the laser monitoring mechanism, in conjunction with the ball bearings and the light-transmitting tube, can accurately monitor the lateral deformation of the roof support plate, while the gear drive mechanism moves the mounting column longitudinally to achieve longitudinal deformation detection. It takes into account multi-curvature adaptability and bidirectional monitoring of both horizontal and vertical directions, is easy to operate, and effectively ensures the safety of mine roadway support. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 A three-dimensional diagram of a mine roadway support deformation monitoring device, multiple support pillars, and roof support plate connections;
[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0020] Figure 3 A first-person perspective stereoscopic view of a mine roadway support deformation monitoring device;
[0021] Figure 4 A second-view stereoscopic image of a mine roadway support deformation monitoring device;
[0022] Figure 5 for Figure 4 Enlarged view of point A in the middle.
[0023] In the diagram: 1. U-shaped column; 2. Connecting column; 3. Top plate; 4. Support column; 5. Slide groove; 6. Sliding block; 7. Mounting column; 8. Light-transmitting tube; 9. Laser receiving plate; 10. Monitor; 11. Vertical plate; 12. Laser sensor; 13. Rectangular column; 14. Spring; 15. Guide block; 16. Guide rod; 17. Bolt; 18. Rectangular rod; 19. Ball bearing; 20. Motor; 21. Gear; 22. Power supply; 23. Rack; 24. Connecting plate; 25. Audible and visual alarm. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1 - Figure 5 The embodiments provided by this utility model are as follows:
[0026] The mine roadway support deformation monitoring device includes two U-shaped columns 1. Two connecting columns 2 are fixedly installed on the sides of the two U-shaped columns 1 that are close to each other. Mounting columns 7 are slidably installed on the two U-shaped columns 1. The mounting columns 7 are connected to the top of one of the U-shaped columns 1 through a gear drive mechanism.
[0027] like Figure 5 As shown, the gear drive mechanism includes a motor 20 fixedly mounted on the top of the mounting column 7. A gear 21 is fixedly mounted on the output shaft of the motor 20. Below the gear 21, a rack 23 is fixedly mounted on the top of the U-shaped column 1. The gear 21 meshes with the rack 23. When longitudinal inspection of the top plate 3 is required, the motor 20 is started. The output shaft of the motor 20 rotates, driving the gear 21 to rotate. The rotating gear 21 rolls on the rack 23, allowing the mounting column 7 to slide along the direction of the U-shaped column 1. The movement of the mounting column 7 drives the movement of multiple rectangular columns 13, multiple rectangular rods 18, and multiple ball bearings 19.
[0028] Multiple rectangular holes are evenly opened on the top of the mounting column 7 along the direction of the mounting column 7. A rectangular column 13 is slidably installed in each of the multiple rectangular holes. A light-transmitting tube 8 is fixedly installed at the bottom of each of the multiple rectangular columns 13. A laser monitoring mechanism is installed at the bottom of the mounting column 7. The laser monitoring mechanism corresponds to the position of the multiple light-transmitting tubes 8.
[0029] like Figure 5 As shown, the laser monitoring mechanism includes two vertical plates 11 fixedly installed at the bottom of the mounting column 7. A laser sensor 12 is fixedly installed on the side of one vertical plate 11 near the rectangular column 13, and a monitor 10 is fixedly installed on the side of the other vertical plate 11. The monitor is a programmable PLC controller. A laser receiving plate 9 is fixedly installed on one side of the monitor 10. The positions of the laser receiving plate 9, the laser sensor 12 and the multiple light-transmitting tubes 8 correspond to each other.
[0030] Both sides of the vertical plate 11 connected to the laser sensor 12 are fixedly installed with connecting plates 24. One side of the connecting plate 24 is equipped with an audible and visual alarm 25, and the other side of the connecting plate 24 is fixedly equipped with a power supply 22. When the lateral position of the roof guard plate 3 is detected, the laser sensor 12 emits a laser. The laser passes through multiple light-transmitting tubes 8 and is received by the laser receiving plate 9. When the top of the roof guard plate 3 deforms, it will squeeze the ball bearing 19, the rectangular rod 18 and the rectangular column 13 to move downward, thereby causing the light-transmitting tubes 8 to move downward, thus blocking the laser emitted by the laser sensor 12. At this time, the laser receiving plate 9 does not receive a signal, and the monitor 10 controls the audible and visual alarm 25 to sound an alarm.
[0031] Multiple rectangular columns 13 are equipped with ball bearings 19 via a telescopic mechanism, and the tops of the multiple ball bearings 19 are in contact with the inner top wall of the top plate 3.
[0032] Multiple support columns 4 are installed at the bottom of the roof support plate 3. The two bottom ends of the U-shaped column 1 are fixedly connected to the bottom ends of two of the support columns 4. The advantage of this arrangement is that when the upper part of the support column 4 deforms, the U-shaped column 1 will not deform accordingly. The mine roadway can be supported by multiple support columns 4 and the roof support plate 3.
[0033] like Figure 5 As shown, the telescopic mechanism includes a rectangular groove at the top of the rectangular column 13, a rectangular rod 18 slidably installed in the rectangular groove, a ball groove at the top of the rectangular rod 18, and a ball bearing 19 rotatably installed in the ball groove. A threaded hole is provided on one inner wall of the rectangular groove, and a bolt 17 is threadedly installed in the threaded hole. One end of the bolt 17 abuts against the side of the rectangular rod 18. By setting the bolt 17, the rectangular rod 18 can slide in the rectangular groove, thereby adjusting the position of the ball bearing 19 so that the top of the ball bearing 19 can contact the inner bottom wall of the top plate 3 with different curvatures. The telescopic mechanism also includes two guide rods 16, each of which is slidably sleeved with a guide block 15. The sides of the two guide blocks 15 that are close to each other are fixedly connected to the two sides of the rectangular column 13. Each guide block 15 is sleeved with a spring 14, and the two ends of the spring 14 are respectively fixedly installed on the sides of the guide block 15 and the mounting column 7 that are close to each other. When the ball bearing 19 encounters the collapsed position at the top of the top plate 3, the ball bearing 19 is squeezed, causing the rectangular rod 18 to move downward. The movement of the rectangular rod 18 drives the rectangular column 13 and the light-transmitting tube 8 to move, thereby causing the light-transmitting tube 8 to block the laser, which in turn causes the audible and visual alarm 25 to sound an alarm. At the same time, the movement of the rectangular column 13 drives the two guide blocks 15 to move, and the two springs 14 deform, thereby enabling the ball bearing 19 to return to its normal position.
[0034] like Figure 2 As shown, sliders 6 are fixedly installed at both ends of the mounting column 7, and grooves 5 are opened on the sides of the two U-shaped columns 1 that are close to each other. The two sliders 6 are slidably installed in the two grooves 5 respectively. The mounting column 7 can slide along the direction of the U-shaped column 1 by means of the sliders 6 and the grooves 5.
[0035] like Figure 3 As shown, the lengths of the multiple rectangular columns 13 decrease sequentially from the middle to both ends of the mounting column 7, and the bottom ends of the multiple rectangular columns 13 are located on the same horizontal plane. The advantage of this arrangement is that it allows the multiple light-transmitting tubes 8 to be located at the same horizontal position, while also allowing the multiple ball bearings 19 to conform to the inner top wall of the top plate 3.
[0036] Working principle:
[0037] The tops of multiple ball bearings 19 contact the inner top wall of the top plate 3. When the lateral position of the top plate 3 is detected, a laser is emitted by the laser sensor 12. The laser passes through multiple light-transmitting tubes 8 and is received by the laser receiving plate 9. When the top of the top plate 3 is deformed, it will squeeze the ball bearings 19, rectangular rods 18 and rectangular columns 13 to move downward, thereby causing the light-transmitting tubes 8 to move downward, thus blocking the laser emitted by the laser sensor 12. At this time, the laser receiving plate 9 cannot receive the signal, and the monitor 10 controls the audible and visual alarm 25 to sound an alarm.
[0038] When longitudinal inspection of the top plate 3 is required, the motor 20 is started. The output shaft of the motor 20 rotates, driving the gear 21 to rotate. The gear 21 rotates and rolls on the rack 23, allowing the mounting column 7 to slide along the direction of the U-shaped column 1. The movement of the mounting column 7 drives multiple rectangular columns 13, multiple rectangular rods 18, and multiple ball bearings 19 to move. When the ball bearing 19 encounters the collapsed position at the top of the top plate 3, the ball bearing 19 is squeezed, causing the rectangular rod 18 to move downward. The movement of the rectangular rod 18 drives the rectangular column 13 and the light-transmitting tube 8 to move, thereby causing the light-transmitting tube 8 to block the laser, which in turn causes the audible and visual alarm 25 to sound an alarm. At the same time, the movement of the rectangular column 13 drives the two guide blocks 15 to move, and the two springs 14 deform, allowing the ball bearing 19 to return to its normal position.
[0039] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A mine roadway support deformation monitoring device, characterized in that: It includes two U-shaped columns (1), two connecting columns (2) are fixedly installed on the sides of the two U-shaped columns (1) that are close to each other, and mounting columns (7) are slidably installed on the two U-shaped columns (1). The mounting columns (7) are connected to the top of one of the U-shaped columns (1) through a gear drive mechanism. The top of the mounting column (7) is provided with a plurality of rectangular holes evenly distributed along the direction of the mounting column (7). A rectangular column (13) is slidably installed in each of the plurality of rectangular holes. A light-transmitting tube (8) is fixedly installed at the bottom of each of the plurality of rectangular columns (13). A laser monitoring mechanism is installed at the bottom of the mounting column (7). The laser monitoring mechanism is positioned corresponding to the position of the plurality of light-transmitting tubes (8). Each of the rectangular columns (13) is equipped with ball bearings (19) via a telescopic mechanism, and the top of each ball bearing (19) contacts the inner top wall of the top plate (3).
2. The mine roadway support deformation monitoring device according to claim 1, characterized in that: The laser monitoring mechanism includes two vertical plates (11) fixedly installed at the bottom of the mounting column (7). A laser sensor (12) is fixedly installed on the side of one of the vertical plates (11) near the rectangular column (13), and a monitor (10) is fixedly installed on the side of the other vertical plate (11). A laser receiving plate (9) is fixedly installed on one side of the monitor (10). The laser receiving plate (9), the laser sensor (12) and the positions of the multiple light-transmitting tubes (8) correspond to each other.
3. The mine roadway support deformation monitoring device according to claim 1, characterized in that: The gear drive mechanism includes a motor (20) fixedly installed on the top of the mounting column (7), a gear (21) fixedly installed on the output shaft of the motor (20), and a rack (23) fixedly installed on the top of the U-shaped column (1) below the gear (21), and the gear (21) meshes with the rack (23).
4. The mine roadway support deformation monitoring device according to claim 1, characterized in that: The telescopic mechanism includes a rectangular groove at the top of a rectangular column (13), a rectangular rod (18) is slidably installed in the rectangular groove, a ball groove is provided at the top of the rectangular rod (18), a ball (19) is rotatably installed in the ball groove, a threaded hole is provided on the inner wall of one side of the rectangular groove, a bolt (17) is threaded in the threaded hole, and one end of the bolt (17) abuts against the side of the rectangular rod (18).
5. The mine roadway support deformation monitoring device according to claim 4, characterized in that: The telescopic mechanism also includes two guide rods (16), each of which is slidably sleeved with a guide block (15). The sides of the two guide blocks (15) that are close to each other are fixedly connected to the two sides of the rectangular column (13). Each of the two guide blocks (15) is sleeved with a spring (14), and the two ends of the spring (14) are respectively fixedly installed on the sides of the guide block (15) and the mounting column (7) that are close to each other.
6. The mine roadway support deformation monitoring device according to claim 2, characterized in that: A connecting plate (24) is fixedly installed on both sides of the vertical plate (11) connected to the laser sensor (12). A sound and light alarm (25) is installed on the side of one of the connecting plates (24), and a power supply (22) is fixedly installed on the side of the other connecting plate (24).
7. The mine roadway support deformation monitoring device according to claim 1, characterized in that: Both ends of the mounting column (7) are fixedly installed with sliders (6), and the two U-shaped columns (1) are provided with grooves (5) on their sides that are close to each other. The two sliders (6) are slidably installed in the two grooves (5).
8. The mine roadway support deformation monitoring device according to claim 1, characterized in that: The lengths of the plurality of rectangular columns (13) decrease sequentially from the middle to both ends of the mounting column (7), and the bottom ends of the plurality of rectangular columns (13) are located on the same horizontal plane.