Early warning device for preventing coal mine rock burst

Abstract

The utility model relates to the technical field of coal mine early warning, and discloses a coal mine rock burst prevention early warning device which comprises a winding box, the side face of the winding box is fixedly connected with a winding mechanism, and the upper surface of the winding box is fixedly connected with a supporting plate. According to the early warning device for preventing and treating the coal mine rock burst, by arranging a winding box, a winding mechanism, a supporting plate and a monitoring assembly, when the rock burst in a coal mine is monitored, a servo motor is started, a winding column is made to rotate clockwise, and a data line starting to be wound in the middle is connected with a borehole stress meter to be slowly placed into a hole formed in the ground in advance; the monitored data is transmitted to the dynamometer display, after the dynamometer display is used, the servo motor is started to rotate anticlockwise, and the data line is wound on the winding column again, so that the data line in the device can be stored, the use is convenient, and the data line can be stored and released according to the monitored rock burst of different depths. And meanwhile, the stressometer display can perform early warning on the rock burst.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine early warning, in particular to an early warning device for preventing and controlling rock burst in coal mines. Background Art

[0002] Among the rock burst monitoring and early warning methods for coal mine prevention and control, the drill cuttings method is one of the most economical and effective methods for predicting rock burst in coal mines. The stress state in the coal rock mass is evaluated based on the amount of coal powder at different drilling depths and the macroscopic dynamic phenomena during the drilling process, and the rock burst hazard of the coal mass is then monitored and tested. The drill cuttings method is generally combined with a handheld electromagnetic radiation detector or a borehole stress meter for manual measurement to obtain more rock burst precursor information and make the detection results more accurate.

[0003] However, the current device structure lacks winding components and support components, which is not conducive to saving manpower and requires manual winding. At the same time, the device cannot be elevated to avoid direct contact with the ground, reduce the erosion of the equipment by moisture, water accumulation and other environmental factors, and extend the service life of the equipment.

[0004] A rock burst warning device for coal mine prevention and control disclosed in announcement number CN207701179U, although, the utility model discloses a rock burst warning device for coal mine prevention and control, including a borehole stress gauge, the bottom of the borehole stress gauge is fixedly connected to a fixing rod, the middle of the fixing rod is provided with a spring, and the right side of the spring is provided with a convex torsion, the bottom of the fixing rod is connected to a sleeve rod, the bottom of the sleeve rod is connected to a handle, and the surface of the handle is provided with a rubber pad, the bottom of the sleeve rod is provided with a connecting wire, and the top of the connecting wire is provided with a connector, the bottom of the connector is threadedly connected to a stress display meter, the middle of the stress display meter is provided with an index needle, and winding plates are fixedly connected to both sides of the stress display meter. The rock burst warning device for coal mine prevention and control adopts a structure consisting of a handle, a fixing rod and a sleeve rod, which makes it easier to plug in and out of the borehole stress gauge and makes monitoring more convenient. In addition, the structure of the winding plate can better organize the connecting wire, thereby reducing the operation time and improving the speed of rock burst monitoring and warning work.

[0005] Although the above patent has achieved the goal of making the diameter of the cylindrical structure on the inner side of the winding plate the same as the diameter of the stress display gauge, and the diameter of the circular plate on the outer side of the winding plate is larger than the diameter of the stress display gauge, this structure enables the operator to wind the connecting wires on its surface in an orderly manner, preventing the connecting wires from being difficult to comb and disorganized after use, thereby saving time for impact ground pressure monitoring and early warning work; however, the device lacks winding components and support components, which is not conducive to saving manpower, requires manual winding, and the device cannot be raised to avoid direct contact with the ground, reducing the erosion of the equipment by moisture, accumulated water and other environmental factors, and extending the service life of the equipment.

[0006] Therefore, it is necessary to invent an early warning device for preventing and controlling coal mine rock burst to solve the above problems. Utility Model Content

[0007] (1) Technical problems solved

[0008] The technical problem solved by the utility model is to provide a coal mine rock burst warning device that is highly practical, can be operated simply, and has a relatively simple structure. It solves the problem raised in the above background technology that the current device structure lacks winding components and support components, is not conducive to saving manpower, requires manual winding, and cannot be raised to avoid direct contact with the ground, thereby reducing the erosion of the equipment by moisture, accumulated water and other environmental factors and extending the service life of the equipment.

[0009] (2) Technical solution

[0010] To achieve the above purpose, the present invention is implemented through the following technical solutions: an early warning device for preventing and controlling impact ground pressure in coal mines, comprising a winding box, a winding mechanism fixedly connected to the side of the winding box, a support plate fixedly connected to the upper surface of the winding box, one end of the support plate fixedly connected to a monitoring component, a loading plate fixedly connected to the bottom surface of the winding box, three groups of supporting components fixedly connected to the side of the loading plate, the surfaces of the three supporting components are fixedly connected to support legs, one end of the three supporting legs are fixedly connected to an auxiliary mechanism, through the winding box, the winding mechanism, The support plate and the monitoring component are set up. When monitoring the rock burst in the coal mine, the servo motor is started to make the winding column rotate clockwise. The data line wound from the middle is connected to the drilling stress gauge and is slowly placed into the hole drilled in advance on the ground. The monitored data is transmitted to the stress gauge display. After use, the servo motor is started counterclockwise to rewind the data line onto the winding column. This is conducive to storing the data line in the device and is convenient for use. It also has the function of retracting and releasing according to the rock burst at different depths. At the same time, the stress gauge display will issue an early warning of the rock burst.

[0011] As a further solution of the present invention, the winding mechanism includes a motor box fixedly connected to the surface of the winding box, a servo motor is fixedly connected to the inside of the motor box, the output end of the servo motor is splined to a transmission column, one end of the transmission column is fixedly connected to a winding column, and both ends of the winding column are rotatably connected to support blocks. Through the setting of the support blocks, the rotation of the winding column is supported.

[0012] As a further solution of the present invention, the monitoring component includes a stress gauge display fixedly connected to one end of the support plate, a power line on one side of the stress gauge display is electrically connected to a data line, and a power line at one end of the data line is electrically connected to a drilling stress gauge. Through the setting of the monitoring component, the impact ground pressure monitoring is played.

[0013] As a further solution of the present invention, the support assembly includes a rotating block fixedly connected to the side of the loading plate, a sleeve is rotatably connected to the surface of the rotating block, one end of the rotating block is fixedly connected to a fixed block, and the internal thread of the fixed block is connected to a bolt. The setting of the bolt plays a role in limiting the support leg.

[0014] As a further solution of the present invention, two sets of handles are threadedly connected to the surface of the loading plate, and anti-slip sleeves are fixedly connected to the surfaces of the two handles. The arrangement of the handles makes it easier to hold the device.

[0015] As a further solution of the present invention, the internal thread of the loading plate is connected with a threaded pipe, and one end of the threaded pipe is fixedly connected with a protective tube. The provision of the protective tube protects the drilling stress gauge when the device is moved.

[0016] (3) Beneficial effects

[0017] The utility model provides an early warning device for preventing and controlling rock burst in coal mines, which has the following beneficial effects:

[0018] 1. The coal mine rock burst warning device, through the arrangement of a winding box, a winding mechanism, a support plate and a monitoring component, starts the servo motor to rotate the winding column clockwise when monitoring rock burst in the coal mine. The data cable wound from the middle is connected to the drilling stress gauge and is slowly lowered into a hole drilled in advance in the ground. The monitored data is transmitted to the stress gauge display. After use, the servo motor is started counterclockwise to rewind the data cable onto the winding column. This is conducive to storing the data cable in the device and is convenient for use. The device also has the function of retracting and releasing the data cable according to the rock burst at different depths. At the same time, the stress gauge display will issue an early warning of the rock burst.

[0019] 2. The coal mine rock burst warning device is equipped with support legs and support components. When using the device, first spread out the three groups of support legs, rotate the three groups of bolts, and press one end of the three groups of bolts against the support legs to fix the support legs. This is conducive to raising the device to avoid direct contact with the ground, reducing the erosion of the equipment by moisture, accumulated water and other environmental factors, and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 This is a schematic diagram of the monitoring component and winding mechanism structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the support assembly structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the auxiliary mechanism structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the auxiliary mechanism structure of the utility model.

[0025] In the figure: 1. Winding box; 2. Winding mechanism; 201. Motor box; 202. Servo motor; 203. Transmission column; 204. Winding column; 205. Support block; 3. Support plate; 4. Monitoring assembly; 401. Strain gauge display; 402. Data cable; 403. Drilling strain gauge; 5. Loading plate; 6. Support assembly; 601. Rotating block; 602. Casing; 603. Fixed block; 604. Bolt; 7. Support leg; 8. Auxiliary mechanism; 801. Connecting block; 802. Spacer block; 803. Fixed plate; 804. Nail; 9. Handle; 10. Threaded pipe; 11. Protective tube. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] See also Figures 1 to 5 The utility model provides a technical solution: an early warning device for preventing and controlling impact ground pressure in coal mines, comprising a winding box 1. The arrangement of the winding box 1, the winding mechanism 2, the support plate 3 and the monitoring component 4 is conducive to storing the data line 402 in the device, which is convenient for use, and also has the function of being retracted and released according to the impact ground pressure monitored at different depths. At the same time, the stress gauge display 401 will give an early warning of the impact ground pressure. The side of the winding box 1 is fixedly connected with the winding mechanism 2, the upper surface of the winding box 1 is fixedly connected with the support plate 3, one end of the support plate 3 is fixedly connected with the monitoring component 4, the bottom surface of the winding box 1 is fixedly connected with the loading plate 5, the side of the loading plate 5 is fixedly connected with three groups of support components 6, the surfaces of the three support components 6 are fixedly connected with support legs 7, the arrangement of the support legs 7 and the support components 6 is conducive to raising the device to avoid direct contact with the ground, reducing the erosion of the equipment by moisture, accumulated water and other environmental factors, and extending the service life of the equipment, and one end of the three support legs 7 is fixedly connected with an auxiliary mechanism 8;

[0028] See also Figure 2 The winding mechanism 2 includes a motor box 201 fixedly connected to the surface of the winding box 1, a servo motor 202 is fixedly connected to the inside of the motor box 201, and the output end of the servo motor 202 is spline-connected to a transmission column 203, one end of the transmission column 203 is fixedly connected to a winding column 204, and both ends of the winding column 204 are rotatably connected to support blocks 205. The setting of the support blocks 205 plays a role in supporting the rotation of the winding column 204;

[0029] See also Figure 2 The monitoring component 4 includes a strain gauge display 401 fixedly connected to one end of the support plate 3. A power line on one side of the strain gauge display 401 is electrically connected to a data line 402. A power line on one end of the data line 402 is electrically connected to a drilling strain gauge 403. The setting of the monitoring component 4 plays a role in monitoring rock burst.

[0030] See also Figure 3 The support assembly 6 includes a rotating block 601 fixedly connected to the side of the loading plate 5. A sleeve 602 is rotatably connected to the surface of the rotating block 601. One end of the rotating block 601 is fixedly connected to a fixed block 603. The internal thread of the fixed block 603 is connected to a bolt 604. The setting of the bolt 604 plays a role in limiting the support leg 7.

[0031] See also Figure 1 The surface of the loading plate 5 is threadedly connected with two sets of handles 9, and the surfaces of the two handles 9 are fixedly connected with anti-slip sleeves. The setting of the handles 9 makes it easy to take the anti-skid device;

[0032] See also Figure 3 The internal thread of the loading plate 5 is connected with a threaded pipe 10, and one end of the threaded pipe 10 is fixedly connected with a protective tube 11. The setting of the protective tube 11 plays a role in protecting the drilling stress gauge 403 when the device is moved.

[0033] Example 1:

[0034] See also Figure 4 The auxiliary mechanism 8 includes a connecting block 801 fixedly connected to one end of the supporting leg 7, and one end of the connecting block 801 is fixedly connected to a pad 802. Through the setting of the auxiliary mechanism 8, the device is stably placed;

[0035] Example 2:

[0036] See also Figure 5The auxiliary mechanism 8 includes a fixing plate 803 fixedly connected to one end of the connecting block 801, and a nail 804 is fixedly connected to the bottom surface of the fixing plate 803. The setting of the nail 804 can fix the device more firmly on the ground.

[0037] In the present invention, the working steps of the device are as follows:

[0038] Step 1: When monitoring rock burst in a coal mine, the servo motor 202 is started, causing the winding column 204 to rotate clockwise. The data cable 402 connected to the borehole stress gauge 403 is slowly lowered into a pre-drilled hole in the ground. The monitored data is transmitted to the stress gauge display 401. After use, the servo motor 202 is started again to rotate counterclockwise, and the data cable 402 is rewound onto the winding column 204.

[0039] Step 2: When using the device, first spread the three groups of support legs 7, and by rotating the three groups of bolts 604, push one end of the three groups of bolts 604 against the support legs 7 to fix the support legs 7. It should be noted that the device structure and the accompanying drawings of the present utility model mainly describe the principle of the present utility model. In terms of the technology of this design principle, the settings of the device's power mechanism, power supply system and control system are not fully described. However, on the premise that those skilled in the art understand the principles of the above-mentioned utility model, they can clearly know the details of its power mechanism, power supply system and control system. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art.

[0040] The standard parts used can be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mine rock burst warning device, comprising a winding box (1), characterized in that: The side of the winding box (1) is fixedly connected to a winding mechanism (2), the upper surface of the winding box (1) is fixedly connected to a support plate (3), one end of the support plate (3) is fixedly connected to a monitoring component (4), the bottom surface of the winding box (1) is fixedly connected to a loading plate (5), the side of the loading plate (5) is fixedly connected to three groups of supporting components (6), the surfaces of the three supporting components (6) are fixedly connected to supporting legs (7), and one end of the three supporting legs (7) is fixedly connected to an auxiliary mechanism (8).

2. The early warning device for preventing and controlling coal mine rock burst according to claim 1, characterized in that: The winding mechanism (2) comprises a motor box (201) fixedly connected to the surface of the winding box (1); a servo motor (202) is fixedly connected inside the motor box (201); an output end of the servo motor (202) is spline-connected to a transmission column (203); one end of the transmission column (203) is fixedly connected to a winding column (204); and both ends of the winding column (204) are rotatably connected to support blocks (205).

3. The early warning device for preventing and controlling coal mine rock burst according to claim 1, characterized in that: The monitoring assembly (4) comprises a strain gauge display (401) fixedly connected to one end of the support plate (3), a power line on one side of the strain gauge display (401) being electrically connected to a data line (402), and a power line on one end of the data line (402) being electrically connected to a drilling strain gauge (403).

4. The early warning device for preventing and controlling coal mine rock burst according to claim 1, characterized in that: The support assembly (6) comprises a rotating block (601) fixedly connected to the side of the carrier plate (5); a sleeve (602) is rotatably connected to the surface of the rotating block (601); one end of the rotating block (601) is fixedly connected to a fixed block (603); and a bolt (604) is internally threadedly connected to the fixed block (603).

5. The early warning device for preventing and controlling coal mine rock burst according to claim 1, characterized in that: Two sets of handles (9) are threadedly connected to the surface of the loading plate (5), and anti-slip sleeves are fixedly connected to the surfaces of the two handles (9).

6. The early warning device for preventing and controlling coal mine rock burst according to claim 1, characterized in that: The internal thread of the loading plate (5) is connected to a threaded pipe (10), and one end of the threaded pipe (10) is fixedly connected to a protective tube (11).

Images