A device for monitoring deformation of a coal mine underground roadway

Abstract

This invention belongs to the field of coal mine safety monitoring, specifically a device for monitoring deformation in underground coal mine roadways. It includes a base plate with pulleys at its bottom. A support plate is fixedly connected to one side of the upper surface of the base plate, and a rotating block is rotatably mounted on the upper surface of the support plate. A laser rangefinder is fixedly connected to one end of the rotating block. A deformation marking assembly is also provided on the base plate. The deformation marking assembly includes a flip plate rotatably mounted on the upper surface of the base plate, with multiple guide rods slidably connected to the flip plate. This invention utilizes the deformation marking assembly to spray pigment onto the abnormal area when the measured distance data is abnormal. When subsequent workers process and repair the abnormal area, they can quickly locate the deformed area by observing the location of the pigment, thus improving repair efficiency.

Description

Technical Field

[0001] This invention belongs to the field of coal mine safety monitoring, specifically a device for monitoring deformation in underground coal mine roadways. Background Technology

[0002] Coal mine underground roadways are a network of passages formed in underground rock strata during coal mining, either manually excavated or through blasting, mechanical tunneling, and other methods. They are the core infrastructure of coal mine production. As the depth of coal mining increases, roadway deformation and collapse accidents caused by mining activities become increasingly serious, severely affecting normal mine production and threatening the personal safety of workers. Therefore, it is necessary to monitor roadway deformation.

[0003] The announced patent discloses a coal mine roadway deformation monitoring device and its usage method, comprising three parts: an installation platform, sensors and actuators, and an ARM processor. The device is connected to a mine car via the installation platform and, pulled by an electric locomotive, reaches the corresponding measuring point to monitor the roadway cross-section. It utilizes sensor technology to automatically level the ranging device, ensuring the accuracy of subsequent measurements; employs laser ranging technology to achieve precise monitoring of roadway deformation; and uses a high-definition camera to capture images of detected abnormal roadways, providing data for subsequent roadway maintenance. This patent features an explosion-proof casing, a reasonable and reliable structural design, high efficiency, and low error, effectively reducing the labor intensity of coal mine workers and improving the level of mine automation.

[0004] However, the above technical solutions still have the following shortcomings in practical applications:

[0005] When monitoring deformation in roadways, a laser rangefinder is used to strike the surrounding rock of the roadway vertically. The rangefinder then measures the distance to the roadway cross-section at the current measuring point to detect whether deformation has occurred. However, when monitoring is conducted continuously, multiple deformation areas may be detected. After the monitoring is completed, these deformed areas require further treatment or repair. After the monitoring is finished, it may be difficult for staff to quickly locate the deformed areas, thus affecting the efficiency of subsequent repairs. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a device for monitoring deformation in underground coal mine roadways.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a device for deformation monitoring of underground roadways in coal mines, including a base plate, a pulley provided at the bottom of the base plate, a support plate fixedly connected to one side of the upper surface of the base plate, a rotating block rotatably provided on one side of the upper surface of the support plate, a laser rangefinder fixedly connected to one end of the rotating block, and a deformation marking component also provided on the base plate;

[0008] The deformation marking assembly includes a flip plate rotatably mounted on one side of the upper end of the base plate. Multiple guide rods are slidably connected to the flip plate. One end of each guide rod is fixedly connected to a mounting plate. Mounting blocks are fixedly and slidably connected to one side of the upper end of the mounting plate and to the sliding groove, respectively. Sliding columns are slidably connected to both sides of the mounting block. A bracket is fixedly connected to one end of each sliding column. A flexible hose is passed through and fixedly connected to one side of the bottom of the bracket. A connecting plate is fixedly connected to one end of each sliding column.

[0009] Preferably, a cylinder is fixedly connected to one side of the flipping plate, and the piston end of the cylinder is fixedly connected to one side of the mounting plate. A motor is fixedly connected to one side of the upper end of the base plate, and the output end of the motor is fixedly connected to one side of the flipping plate. A motor is fixedly connected to one side of the upper end of the support plate, and the output end of the motor is fixedly connected to one end of the rotating block.

[0010] Preferably, a pigment box is fixedly connected to one side of the mounting plate, and a paint pump is connected and fixedly connected to one side of the pigment box. The outlet end of the paint pump is connected to one end of a hose.

[0011] Preferably, one end of the lower mounting block is threadedly connected to a threaded rod, both ends of which are rotatably mounted on the mounting plate. A motor is fixedly connected to one side of the upper end of the mounting plate, and the output end of the motor is fixedly connected to one end of the threaded rod.

[0012] Preferably, the bracket has adsorption rollers fixedly connected to both ends, and multiple air holes are provided on one side of the adsorption rollers. An air pump is fixedly connected to one side of the upper surface of the mounting block, and an air pipe is connected to the air inlet of the air pump. One end of the air pipe is connected to one side of the adsorption roller.

[0013] Preferably, a spring is fitted on one side of the sliding column, one end of the spring is fixedly connected to the connecting plate, and the other end is fixedly connected to the mounting block.

[0014] Preferably, a film roll is rotatably mounted on both ends of one side of the support plate, and a second motor is fixedly connected to one end of the support plate, with the output end of the second motor fixedly connected to one end of the film roll.

[0015] Preferably, a glue tank is fixedly connected to one side of the upper end of the support plate, a glue pump is connected and fixedly connected to one side of the bottom of the glue tank, a glue outlet pipe is connected to the glue outlet end of the glue pump, a long pipe is connected to one end of the glue outlet pipe, both ends of the long pipe are fixedly connected to the support plate, and multiple nozzles are provided on one side of the long pipe.

[0016] Preferably, a cutting plate is fixedly connected to one side of the upper end of the support plate, and a blade plate is slidably connected to one end of the cutting plate.

[0017] Preferably, an electric push rod is fixedly connected to one end of the cutting plate, and the piston end of the electric push rod is fixedly connected to one end of the blade plate.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The device for monitoring deformation in underground coal mine roadways, as described in this invention, utilizes a deformation marking component. When abnormal distance data is detected, pigment can be sprayed onto the abnormal area. Subsequent processing and repair of the abnormal area allows for rapid localization of the deformation zone by observing the location of the pigment, thus improving repair efficiency.

[0020] 2. The device for deformation monitoring in underground coal mine roadways according to the present invention, after the deformed area is sprayed with pigment, drives the mounting plate to reset. Simultaneously, a second motor drives the film roll to rotate, unwinding the film. At the same time, a cylinder drives the adsorption rollers on both sides to adhere to the film surface. First, the lower air pump is activated, using negative pressure adsorption to adsorb the film end onto the surface of the lower adsorption roller. Then, the lower adsorption roller is driven to descend, while the film roll continues to unwind the film. Then, a glue pump extracts glue from the glue tank and sprays it onto the unwinding part of the film. Once the unwinding part of the film is evenly coated with glue, the upper air pump is activated, and the upper adsorption roller also adsorbs the film. At this point, the electric actuator moves the blade plate laterally, cutting the film in conjunction with the cutting plate. The cut film is then adsorbed onto two adsorption rollers. Motor 1 rotates the flipping plate, and a cylinder moves the mounting plate to adjust the position of the cut film, adhering it to the deformed area of ​​the tunnel. The air pump is then turned off, preventing further adsorption. Simultaneously, motor 4 rotates the threaded rod, bringing one adsorption roller closer to the other. The adsorption rollers, with the help of a sliding column and spring, tightly adhere to the deformed area, firmly pressing the film there. The paint sprayed on the deformed area is covered by the film, providing protection. This process is repeated; each time paint is sprayed onto a deformed area, it is covered by the film. Even if foreign objects come into contact with the deformed area, the film will separate the objects from the paint. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the laser rangefinder.

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure at the support plate.

[0025] Figure 4 yes Figure 3 Enlarged view of a portion of point A in the middle;

[0026] Figure 5 yes Figure 3 Enlarged view of a section at point B in the middle;

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of the thin film roll;

[0028] Figure 7 This is a schematic diagram of the three-dimensional structure of the long tube.

[0029] Figure 8 This is a three-dimensional structural diagram of the glue tank.

[0030] In the diagram: 1. Base plate; 2. Flip plate; 3. Guide rod; 4. Cylinder; 5. Motor 1; 6. Mounting plate; 7. Support plate; 8. Laser rangefinder; 9. Glue tank; 10. Film roll; 11. Motor 2; 12. Pulley; 13. Motor 3; 14. Pigment tank; 15. Paint pump; 16. Hose; 17. Motor 4; 18. Rotating block; 19. Glue pump; 20. Glue outlet pipe; 21. Long pipe; 22. Spray nozzle; 23. Mounting block; 24. Sliding column; 25. Spring; 26. Connecting plate; 27. Air pump; 28. Air pipe; 29. ​​Bracket; 30. Adsorption roller; 31. Cutting plate; 32. Electric actuator; 33. Blade plate; 34. Threaded rod. Detailed Implementation

[0031] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please refer to Figures 1-8 The present invention provides a technical solution: a device for deformation monitoring of underground roadways in coal mines, including a base plate 1, a pulley 12 at the bottom of the base plate 1, a support plate 7 fixedly connected to one side of the upper surface of the base plate 1, a rotating block 18 rotatably arranged on one side of the upper surface of the support plate 7, a laser rangefinder 8 fixedly connected to one end of the rotating block 18, and a deformation marking component also provided on the base plate 1.

[0033] The deformation marking assembly includes a flip plate 2 rotatably mounted on one side of the upper end of the base plate 1. Multiple guide rods 3 are slidably connected to the flip plate 2. One end of the guide rod 3 is fixedly connected to a mounting plate 6. Mounting blocks 23 are fixedly and slidably connected to one side of the upper end of the mounting plate 6 and to the sliding groove, respectively. Sliding columns 24 are slidably connected to both sides of the mounting block 23. A bracket 29 is fixedly connected to one end of the sliding column 24. A flexible hose 16 is passed through and fixedly connected to one side of the bottom of the bracket 29. A connecting plate 26 is fixedly connected to one end of the sliding column 24.

[0034] In this embodiment, as Figures 2-4 , Figure 6 , Figure 8 As shown, a cylinder 4 is fixedly connected to one side of the flip plate 2, and the piston end of the cylinder 4 is fixedly connected to one side of the mounting plate 6. A motor 5 is fixedly connected to one side of the upper end of the base plate 1, and the output end of the motor 5 is fixedly connected to one side of the flip plate 2. A motor 13 is fixedly connected to one side of the upper end of the support plate 7, and the output end of the motor 13 is fixedly connected to one end of the rotating block 18.

[0035] A pigment box 14 is fixedly connected to one side of the mounting plate 6. A paint pump 15 is connected and fixed to one side of the pigment box 14. The discharge end of the paint pump 15 is connected to one end of the hose 16.

[0036] One end of the lower mounting block 23 is threadedly connected to a threaded rod 34. Both ends of the threaded rod 34 are rotatably mounted on the mounting plate 6. A motor 17 is fixedly connected to one side of the upper end of the mounting plate 6. The output end of the motor 17 is fixedly connected to one end of the threaded rod 34.

[0037] Specifically, in existing technologies, deformation monitoring of roadways is achieved by vertically projecting a laser emitted from a laser rangefinder 8 onto the surrounding rock of the roadway. The laser rangefinder 8 then measures the distance to the roadway cross-section at the current measuring point, thereby detecting whether deformation has occurred. However, under normal circumstances, when monitoring is conducted continuously, multiple deformation areas may be detected. After the monitoring work is completed, these deformation areas require further processing or repair. After the monitoring work is finished, it may be difficult for staff to quickly locate the deformation areas, thus affecting the efficiency of subsequent repairs.

[0038] Therefore, to solve the above problems, in this embodiment, the original information of the tunnel is first scanned and entered. The bottom plate 1 can be moved by the pulley 12, and at the same time, the motor 13 drives the rotating block 18 to rotate, which can adjust the angle of the laser rangefinder 8. When the device reaches the designated measuring point, the laser emitted by the laser rangefinder 8 is made to strike the tunnel cross-section vertically to measure the distance.

[0039] When the measured distance data is abnormal, the position of the hose 16 opening can be adjusted by rotating the flip plate 2 via motor 5 and moving the mounting plate 6 via cylinder 4, aligning the opening with the abnormal area. Simultaneously, rotating the threaded rod 34 via motor 17 allows the lower mounting block 23 to slide, adjusting the height of the opening. This, combined with the movement of the base plate 1, ensures the opening is aligned with the deformed area. Then, paint pump 15 extracts paint from the paint tank 14 and sprays it onto the abnormal area. This process is repeated, with paint sprayed onto the abnormal area whenever a distance data anomaly is detected. Subsequent repair work can then quickly locate the deformed area by observing the location of the paint, improving repair efficiency.

[0040] In this embodiment, as Figures 3-8 As shown, the bracket 29 is fixedly connected to the two ends of the adsorption roller 30. Multiple air holes are provided on one side of the adsorption roller 30. An air pump 27 is fixedly connected to one side of the upper end face of the mounting block 23. An air pipe 28 is connected to the air inlet end of the air pump 27. One end of the air pipe 28 is connected to one side of the adsorption roller 30.

[0041] A spring 25 is fitted on one side of the sliding column 24. One end of the spring 25 is fixedly connected to the connecting plate 26, and the other end is fixedly connected to the mounting block 23.

[0042] A film roll 10 is rotatably mounted on both ends of one side of the support plate 7. A motor 2 11 is fixedly connected to one end of the support plate 7, and the output end of the motor 2 11 is fixedly connected to one end of the film roll 10.

[0043] A glue tank 9 is fixedly connected to one side of the upper end of the support plate 7. A glue pump 19 is connected and fixedly connected to one side of the bottom of the glue tank 9. A glue outlet pipe 20 is connected to the glue outlet end of the glue pump 19. A long pipe 21 is connected to one end of the glue outlet pipe 20. Both ends of the long pipe 21 are fixedly connected to the support plate 7. Multiple nozzles 22 are provided on one side of the long pipe 21.

[0044] A cutting plate 31 is fixedly connected to one side of the upper end of the support plate 7, and a blade plate 33 is slidably connected to one end of the cutting plate 31.

[0045] One end of the cutting plate 31 is fixedly connected to an electric push rod 32, and the piston end of the electric push rod 32 is fixedly connected to one end of the blade plate 33.

[0046] Specifically, in the above embodiments, although the pigment can be sprayed on the deformed area so that the subsequent staff can quickly locate the deformed area, in some cases, the monitoring cycle is long and the tunnel environment is complex with many foreign objects. When these foreign objects come into contact with the deformed area under the action of external force, the pigment may be rubbed off, thereby affecting the staff's ability to locate the deformed area.

[0047] Therefore, to solve the above problems, in this embodiment, after the deformed area is sprayed with pigment, the mounting plate 6 is driven to reset. At the same time, the motor 11 drives the film roll 10 to rotate, unwinding the film. Simultaneously, the cylinder 4 drives the suction rollers 30 on both sides to adhere to the film surface. First, the lower air pump 27 is started, and the film end is adsorbed onto the surface of the lower suction roller 30 through negative pressure adsorption. Then, the lower suction roller 30 is driven to descend, while the film roll 10 continues to unwind the film. Then, the glue pump 19 extracts glue from the glue tank 9 and sprays it onto the unwinding part of the film. After the unwinding part of the film is evenly coated with glue, the upper air pump 27 is turned on, and the upper suction roller 30 also adsorbs the film. At this point, the electric actuator 32 drives the blade plate 33 to move laterally, which, in conjunction with the cutting plate 31, cuts the film. The cut film is then adsorbed onto the two adsorption rollers 30 and rises. Then, the position of the cut film is adjusted by the motor 5 driving the rotating plate 2 and the cylinder 4 driving the mounting plate 6 to move, adhering the film to the deformation area of ​​the tunnel. The air pump 27 is then turned off, preventing the film from being adsorbed again. Simultaneously, the motor 17 drives the threaded rod 34 to rotate, causing one adsorption roller 30 to move closer to the other. The adsorption roller 30, with the cooperation of the sliding column 24 and the spring 25, tightly adheres to the deformation area until the film is firmly pressed against it. The paint sprayed on the deformation area is covered by the film, which provides protection. This process is repeated, ensuring that each deformation area is covered by the film after paint is sprayed. Even if foreign objects come into contact with the deformation area, the film separates them from the paint, preventing the paint from being rubbed off and further ensuring accurate positioning of the deformation area by the workers.

[0048] Working Principle: First, the original information of the tunnel is scanned and entered. The base plate 1 can be moved via pulley 12, while motor 3 13 drives rotating block 18 to adjust the angle of laser rangefinder 8. When the equipment reaches the designated measuring point, the laser emitted by laser rangefinder 8 is perpendicularly projected onto the tunnel cross-section for distance measurement. When the measured distance data is abnormal, the position of the hose 16 opening can be adjusted by motor 1 5 driving the tilting plate 2 to rotate and cylinder 4 driving the mounting plate 6 to move, aligning the opening with the abnormal area. Furthermore, motor 4 17 drives threaded rod 34 to rotate, allowing the lower mounting block 23 to slide, thereby adjusting the height of the opening. Simultaneously, the movement of the base plate 1 ensures the opening is aligned with the deformed area. Then, paint pump 15 extracts paint from paint tank 14 and sprays it onto the abnormal area. This process is repeated; whenever an abnormal distance data is detected, paint is sprayed onto the abnormal area. Subsequent workers can quickly locate the deformed area by observing the location of the paint, improving repair efficiency. After the deformed area is sprayed with pigment, the mounting plate 6 is driven to reset. At the same time, the motor 11 drives the film roll 10 to rotate, unwinding the film. Simultaneously, the cylinder 4 drives the suction rollers 30 on both sides to adhere to the film surface. First, the lower air pump 27 is started, and the film end is adsorbed onto the surface of the lower suction roller 30 through negative pressure adsorption. Then, the lower suction roller 30 is driven to descend, while the film roll 10 continues to unwind the film. Then, the glue pump 19 extracts glue from the glue tank 9 and sprays it onto the unwinding part of the film. After the unwinding part of the film is evenly coated with glue, the upper air pump 27 is turned on, and the upper suction roller 30 also adsorbs the film. At this point, the electric actuator 32 drives the blade plate 33 to move laterally, which, in conjunction with the cutting plate 31, cuts the film. The cut film is then adsorbed onto the two adsorption rollers 30 and rises. Then, the position of the cut film is adjusted by the motor 5 driving the rotating plate 2 and the cylinder 4 driving the mounting plate 6 to move, adhering the film to the deformation area of ​​the tunnel. The air pump 27 is then turned off, preventing the film from being adsorbed again. Simultaneously, the motor 17 drives the threaded rod 34 to rotate, causing one adsorption roller 30 to move closer to the other. The adsorption roller 30, with the cooperation of the sliding column 24 and the spring 25, tightly adheres to the deformation area until the film is firmly pressed against it. The paint sprayed on the deformation area is covered by the film, which provides protection. This process is repeated, ensuring that each deformation area is covered by the film after paint is sprayed. Even if foreign objects come into contact with the deformation area, the film separates them from the paint, preventing the paint from being rubbed off and further ensuring accurate positioning of the deformation area by the workers.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for monitoring deformation in underground coal mine roadways, comprising a base plate (1), characterized in that: The bottom of the base plate (1) is provided with a pulley (12), and a support plate (7) is fixedly connected to one side of the upper surface of the base plate (1). A rotating block (18) is rotatably provided on one side of the upper surface of the support plate (7). A laser rangefinder (8) is fixedly connected to one end of the rotating block (18). A deformation marking assembly is also provided on the base plate (1). The deformation marking assembly includes a flip plate (2) rotatably mounted on one side of the upper end of the base plate (1). Multiple guide rods (3) are slidably connected to the flip plate (2). One end of each guide rod (3) is fixedly connected to a mounting plate (6). Mounting blocks (23) are distributed on both the upper and lower sides of the mounting plate (6). The upper mounting block (23) is fixedly connected to the mounting plate (6), and the lower mounting block (23) is slidably connected to the mounting plate (6). Sliding columns (24) are slidably connected to both sides of each mounting block (23). A bracket (29) is fixedly connected to one end of each sliding column (24). A flexible hose (16) is threaded through and fixedly connected to one side of the bottom of the bracket (29). A connecting plate (26) is fixedly connected to one end of each sliding column (24). The bracket (29) is fixedly connected to two ends of an adsorption roller (30). The adsorption roller (30) has multiple air holes on one side. The upper end of the mounting block (23) is fixedly connected to an air pump (27). The air pump (27) has an air inlet connected to an air pipe (28). One end of the air pipe (28) is connected to one side of the adsorption roller (30). A spring (25) is sleeved on one side of the sliding column (24). One end of the spring (25) is fixedly connected to the connecting plate (26), and the other end is fixedly connected to the mounting block (23). A film roll (10) is rotatably set at both ends of one side of the support plate (7). A motor (11) is fixedly connected to one end of the support plate (7). The output end of the motor (11) is fixedly connected to one end of the film roll (10).

2. The device for monitoring deformation in underground coal mine roadways according to claim 1, characterized in that: A cylinder (4) is fixedly connected to one side of the flip plate (2). The piston end of the cylinder (4) is fixedly connected to one side of the mounting plate (6). A motor (5) is fixedly connected to one side of the upper end of the base plate (1). The output end of the motor (5) is fixedly connected to one side of the flip plate (2). A motor (13) is fixedly connected to one side of the upper end of the support plate (7). The output end of the motor (13) is fixedly connected to one end of the rotating block (18).

3. The device for monitoring deformation in underground coal mine roadways according to claim 1, characterized in that: A pigment box (14) is fixedly connected to one side of the mounting plate (6), and a paint pump (15) is connected and fixed to one side of the pigment box (14). The discharge end of the paint pump (15) is connected to one end of the hose (16).

4. The device for monitoring deformation in underground coal mine roadways according to claim 1, characterized in that: The mounting block (23) on the lower side is threaded to one end with a threaded rod (34). Both ends of the threaded rod (34) are rotatably mounted on the mounting plate (6). A motor (17) is fixedly connected to one side of the upper end of the mounting plate (6). The output end of the motor (17) is fixedly connected to one end of the threaded rod (34).

5. The device for monitoring deformation in underground coal mine roadways according to claim 1, characterized in that: A glue tank (9) is fixedly connected to one side of the upper end of the support plate (7). A glue pump (19) is connected and fixed to one side of the bottom of the glue tank (9). A glue outlet pipe (20) is connected to the glue outlet end of the glue pump (19). A long pipe (21) is connected to one end of the glue outlet pipe (20). Both ends of the long pipe (21) are fixedly connected to the support plate (7). Multiple nozzles (22) are provided on one side of the long pipe (21).

6. The device for monitoring deformation in underground coal mine roadways according to claim 1, characterized in that: A cutting plate (31) is fixedly connected to one side of the upper end of the support plate (7), and a blade plate (33) is slidably connected to one end of the cutting plate (31).

7. The device for monitoring deformation in underground coal mine roadways according to claim 6, characterized in that: One end of the cutting plate (31) is fixedly connected to an electric push rod (32), and the piston end of the electric push rod (32) is fixedly connected to one end of the blade plate (33).

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