Coal mine underground drilling dustproof device
By designing a drilling device that combines a dust cover with a centrifugal fan, the problem of dust pollution from drilling in coal mines has been solved, achieving efficient dust collection and removal while reducing costs and water consumption.
Patent Information
- Application Number
- CN202520281238.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Existing drilling equipment lacks dust prevention capabilities during underground drilling in coal mines, resulting in severe dust pollution. Furthermore, water spraying for dust suppression is costly and ineffective.
A device comprising a rectangular frame, a dust cover, a rotating rod, a volute, an impeller, and a dust collection bag was designed. The rotating rod drives the drill bit to rotate, the dust cover is pressed against the well wall to form protection, and a centrifugal fan and negative pressure are used to suck up the dust, which is then collected by the dust collection bag.
It effectively reduces dust dispersion, achieves dust prevention and removal during the drilling process, avoids dust pollution, reduces water consumption and costs, and improves safety and health.
Smart Images
Figure CN223854191U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the underground drilling dust prevention technical field, especially relates to a coal mine underground drilling dust prevention device. BACKGROUND
[0002] Coal mine is the area that human extracts coal resources in the coal-rich mining area, generally divided into underground coal mine and open coal mine, when the coal seam is far from the ground surface, generally selects to excavate the roadway to the underground to mine the coal, this is the underground coal mine, when the distance between the coal seam and the ground surface is very close, generally selects to directly strip the ground surface soil layer to excavate the coal, this is the open coal mine, most of the coal mines in China belong to the underground coal mine, in the process of coal mining, drilling equipment is often used to drill holes on the sidewall of the coal mine roadway, so as to install and lay out the related equipment.
[0003] At present, the existing drilling equipment does not have the dust prevention function, in the process of drilling in the coal mine, a large amount of dust will be generated and dispersed into the air, which will pollute the work site and bring great hidden danger to the safety production of the mine and the health of the personnel, some use the way of sprinkling water to reduce dust, this way needs to use a large amount of water, increases the cost investment, and the water mixed with dust sprayed will form mud at the bottom of the roadway, which will also pollute the work site, and the dust removal effect is poor.
[0004] In view of the above problems, the coal mine underground drilling dust prevention device is provided. UTILITY MODEL CONTENTS
[0005] TECHNICAL SCHEME
[0006] In order to solve the above technical problems, the utility model provides a kind of coal mine underground drilling dust prevention device, including rectangle frame and dust cover, elastic component is arranged between the rectangle frame and dust cover, rotating rod is movably arranged in the dust cover, one end of the rotating rod is connected with drill bit, two connecting rods are movably arranged on the inner wall of the dust cover, one end of the connecting rod close to the drill bit is connected with cylindrical gear, one end of the cylindrical gear away from the connecting rod is fixed with rotating shaft, two dust exhaust pipes are embedded on the dust cover, one end of the two dust exhaust pipes close to the inner side is communicated with volute, impeller is movably arranged in the volute, the rotating shaft penetrates the volute, and the rotating shaft is rotatably connected with the volute, the impeller is arranged on the rotating shaft, suction inlet is formed in one side of the volute, movable gear is arranged on the rotating rod, and the movable gear is engaged with the cylindrical gear.
[0007] The dust cover is provided with a round hole, the rotating rod is movably arranged in the round hole, a limit plate is arranged on the outer side of the rotating shaft, the limit plate is fixedly connected with one end of the cylindrical gear away from the connecting rod, and the suction inlet on the volute is arranged on the side away from the limit plate.
[0008] The outer wall of the rotating shaft is fixed with a brush, and the inner wall of the suction inlet of the volute is provided with a filter screen.
[0009] The dust cover is provided with a dust collecting bag outside, the opening end of the dust collecting bag is threadedly connected with a dust collecting pipe through an adapter, one end of a hose communicated with the dust collecting pipe is communicated with the outer side of the dust discharging pipe, and the other end of the two hoses is communicated with the dust collecting pipe.
[0010] The elastic assembly comprises a disc, a sleeve, a spring and a piston rod, the disc is fixed on one side of the dust cover close to the rectangular frame, a through hole is formed in the disc, the rotating rod is movably connected with the through hole, the two sleeves are oppositely arranged on the inner side of the rectangular frame, the piston rod is in T-shaped structure in cross section, the piston rod is movably connected with the sleeve, the spring is connected between the inner wall of the sleeve and the piston rod, and one end of the piston rod away from the spring is fixedly connected with the disc.
[0011] A motor is mounted on the inner side of the rectangular frame, the output end of the motor is fixedly connected with one end of the rotating rod away from the drill bit, two handle rods are fixedly arranged on the rectangular frame, and antiskid sleeves are arranged on the outer sides of the handle rods.
[0012] Compared with the prior art, the utility model has the advantages of:
[0013] The rotating rod can conveniently drive the drill bit to rotate, the dust cover is effectively extruded under the action of the elastic assembly, the dust cover is abutted against the well wall, the protection is formed outside the drilling position, and the dust generated in the drilling process is reduced to be scattered outward.
[0014] Meanwhile, the movable gear is driven to rotate synchronously in the rotating process of the rotating rod, the movable gear and the cylindrical gear are meshed, the connecting rod and the dust cover are rotationally connected, the rotating shaft and the volute are rotationally connected, the rotating shaft is driven to rotate synchronously, the impeller is driven to rotate along with the rotation of the rotating shaft, the air containing dust in the inner side of the dust cover enters the volute through the suction inlet under the action of centrifugal force and air negative pressure, and is discharged outward through the dust discharging pipe, the dust discharged outward is accumulated in the dust collecting bag through the cooperation of the hose and the dust collecting pipe, the dust is collected, the dustproof function of the existing drilling equipment is effectively solved, a large amount of dust is generated in the drilling process in the coal mine, the dust is scattered in the air, the working place is polluted, great hidden troubles are brought to mine safety production and personnel health, the dust is treated by spraying water, the water is used in large amount, the cost input is increased, the water mixed with dust is sprayed to form mud at the bottom of the roadway, the working place is also polluted, and the dust removal effect is poor. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a top view of the present invention;
[0017] Figure 3 for Figure 2 Schematic diagram of the structure of section AA;
[0018] Figure 4 for Figure 3 Schematic diagram of the structure of the mid-section BB;
[0019] Figure 5 for Figure 3 Enlarged structural diagram at point C;
[0020] Figure 6 for Figure 3 Enlarged structural diagram at point D;
[0021] Figure 7 for Figure 4 Enlarged structural diagram at point E;
[0022] Figure 8 for Figure 1 A structural diagram from another perspective;
[0023] Figure 9 for Figure 8 A magnified structural diagram at point F in the middle.
[0024] The markings in the attached diagram are as follows: 1. Rectangular frame; 2. Dust cover; 3. Rotating rod; 4. Drill bit; 5. Connecting rod; 6. Cylindrical gear; 7. Limiting plate; 8. Rotating shaft; 9. Dust exhaust pipe; 10. Volute; 11. Impeller; 12. Filter screen; 13. Brush; 14. Movable gear; 15. Hose; 16. Dust collection pipe; 17. Dust collection bag; 18. Disc; 19. Sleeve; 20. Spring; 21. Piston rod; 22. Motor; 23. Handle. Detailed Implementation
[0025] This specific embodiment is a dust control device for underground drilling in coal mines, such as... Figures 1-9As shown, the coal mine underground drilling dustproof device, including rectangular frame 1 and dust cover 2, rectangular frame 1 and dust cover 2 between the elastic component is provided, dust cover 2 within the movable setting has rotating rod 3, one end of rotating rod 3 is connected with drill bit 4, dust cover 2 inner wall is opposite rotating setting has two connecting rods 5, connecting rod 5 near one end of drill bit 4 is connected with cylindrical gear 6, cylindrical gear 6 away from one end of connecting rod 5 is fixed with rotating shaft 8, dust cover 2 on the opposite side of the embedded with two dust exhaust pipe 9, two dust exhaust pipe 9 close to the inner side of one end is communicated with volute 10, volute 10 within the movable setting has impeller 11, rotating shaft 8 through volute 10, and rotating shaft 8 and volute 10 rotation connection, impeller 11 is arranged on rotating shaft 8, volute 10 one side is provided with suction inlet, rotating rod 3 is provided with movable gear 14, movable gear 14 and cylindrical gear 6 is engaged.
[0026] Through rotating rod 3 is convenient to drive drill bit 4 to rotate, implementation drilling operation, wherein under the action of elastic component, effectively to dust cover 2 play extrusion effect, so that dust cover 2 and well wall, on the outside of the drilling position forms protection, reduce the drilling process produces dust to the outside of the drift, at the same time in the process of rotating rod 3 rotation, drive movable gear 14 synchronous rotation, under the meshing effect of movable gear 14 and cylindrical gear 6, combined with connecting rod 5 and dust cover 2 rotation connection, and rotating shaft 8 and volute 10 rotation connection, drive rotating shaft 8 synchronous rotation, with the rotation of rotating shaft 8, drive impeller 11 to rotate, under the action of centrifugal force and air negative pressure, so that dust cover 2 inside contains dust air through the suction inlet into volute 10, and through dust exhaust pipe 9 to the outside, the subsequent collection of dust is convenient, effectively solve the existing drilling equipment does not have dustproof function, in the process of drilling in coal mine, will produce a large amount of dust, drift to the air, will cause pollution to the workplace, to the mine safety production and personnel health has brought great hidden trouble of the drawbacks, at the same time solves part of the way to spray water for dust treatment, this way needs to use a large amount of water, increase the cost investment, and the water mixed with dust sprayed in the roadway bottom will form mud, also will cause pollution to the workplace, the dust removal effect is not good of the drawbacks.
[0027] Dust cover 2 through the opening is provided with round hole, rotating rod 3 is movably arranged in the round hole, rotating shaft 8 outside is provided with a limit plate 7, limit plate 7 is fixedly connected with cylindrical gear 6 away from one end of connecting rod 5, the suction inlet on volute 10 is provided on the side away from limit plate 7, rotating shaft 8 outer wall side is fixed with brush 13, the suction inlet on volute 10 inner wall is provided with filter screen 12, brush 13 and filter screen 12 are matched with each other.
[0028] The dust cover 2 is provided with a dust collecting bag 17 outside, the opening end of the dust collecting bag 17 is threadedly connected with a dust collecting pipe 16 through an adapter, the dust discharging pipe 9 is communicated with a hose 15 at one end away from the dust discharging pipe 9, and the two ends of the two hoses 15 away from the dust discharging pipe 9 are communicated with the dust collecting pipe 16.
[0029] The elastic assembly comprises a disc 18, sleeves 19, a spring 20 and a piston rod 21, the disc 18 is fixed on one side of the dust cover 2 close to the rectangular frame 1, the disc 18 is provided with a through hole, the rotating rod 3 is movably connected with the through hole, the two sleeves 19 are oppositely arranged on the inner side of the rectangular frame 1, the piston rod 21 is in a T-shaped structure, the piston rod 21 is movably connected with the sleeves 19, the spring 20 is connected between the inner wall of the sleeve 19 and the piston rod 21, and the end of the piston rod 21 away from the spring 20 is fixedly connected with the disc 18.
[0030] A motor 22 is mounted on the inner side of the rectangular frame 1, the output end of the motor 22 is fixedly connected with the end of the rotating rod 3 away from the drill bit 4, two handle rods 23 are fixed on the rectangular frame 1, and antiskid sleeves are arranged on the outer sides of the handle rods 23.
[0031] Embodiment:
[0032] In use, the staff member holds the handle rod 23, adjusts the drill bit 4 to be aligned with the position to be drilled, at this moment, the end of the dust cover 2 away from the rectangular frame 1 is abutted against the well wall, so that the dust cover 2 is arranged outside the drilling position, then the motor 22 is started, the rotating rod 3 is driven to rotate by the motor 22, and then the drill bit 4 is driven to rotate, along with the rotation of the drill bit 4, the rectangular frame 1 is driven to be close to the well wall under the cooperation of the piston rod 21 and the sleeve 19 and the elastic action of the spring 20, so that the drill bit 4 is drilled into the inner side of the well wall, and the drilling purpose is achieved.
[0033] In this process, the dust generated in the drilling is effectively reduced to be scattered outward under the isolation of the dust cover 2, and the dust scattering causes pollution to the operation environment.
[0034] When the rectangular frame 1 is driven to be close to the well wall, the rotating rod 3 is driven to move synchronously, and then the movable gear 14 is driven to slide along the cylindrical gear 6, in the process of the rotation of the rotating rod 3, the movable gear 14 is driven to rotate synchronously, the cylindrical gear 6 is driven to rotate synchronously in combination with the meshing action of the movable gear 14 and the cylindrical gear 6 and the rotary connection of the connecting rod 5 and the inner wall of the dust cover 2.
[0035] Through the rotation of the cylindrical gear 6, the rotating shaft 8 is driven to rotate, combined with the rotating cooperation of the rotating shaft 8 and the volute 10, and the impeller 11 is movably arranged in the volute 10, thereby driving the impeller 11 to rotate, so that the dust-containing air in the dust cover 2 enters the position of the impeller 11 through the suction port on the volute 10, and then enters the dust removal pipe 9 through the inner cavity of the volute 10, and then enters the dust collecting bag 17 through the hose 15 and the dust collecting pipe 16, and the air is discharged through the gap on the dust collecting bag 17, and the dust in the air is separated out and accumulated in the dust collecting bag 17, facilitating subsequent same treatment, achieving the purposes of dust prevention and dust removal during drilling, effectively solving the problem that the existing drilling equipment does not have a dust prevention function, and a large amount of dust is generated during drilling in a coal mine, which is dispersed into the air and pollutes the workplace, causing great hidden dangers to mine safety production and personnel health, and solving the problem that some people use the water spraying method to reduce dust, which needs to use a large amount of water, increases the cost investment, and the water mixed with dust sprayed on the roadway bottom forms mud, which also pollutes the workplace and has poor dust removal effect.
[0036] Wherein under the action of the limiting plate 7, the movable gear 14 is effectively limited, effectively avoiding the movable gear 14 from being separated from the cylindrical gear 6 during the movement of the rotating rod 3, and ensuring the use effect of the device during drilling.
[0037] Wherein under the action of the filter screen 12, the dust-containing air entering the volute 10 is effectively preliminarily filtered, avoiding large particles of gravel and the like from entering the volute 10 and damaging the impeller 11, ensuring the use effect and service life of the impeller 11, and at the same time, the rotating shaft 8 drives the brush 13 to rotate synchronously with the filter screen 12 during rotation, achieving the purpose of cleaning the surface of the filter screen 12 and avoiding the filter screen 12 from being blocked and affecting the discharge of dust-containing air in the dust cover 2.
[0038] It should be further pointed out that the installation structure, connection mode or setting mode of each component in the utility model are common mechanical modes, as long as the beneficial effects can be achieved, and at the same time, the motor 22 in the utility model is purchased on the market, and the person skilled in the art can install and use it according to the requirements.
[0039] Wherein the rotating shaft 8, the volute 10 and the impeller 11 cooperate with each other to form the structure of a centrifugal fan, achieving the purposes of sucking the dust-containing air in the dust cover 2 during drilling and achieving the effects of dust prevention and dust removal.
[0040] All the technical features in the embodiment can be freely combined according to actual needs.
[0041] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.
Claims
1. A dust protection device for underground drilling in coal mines, comprising a rectangular frame (1) and a dust protection cover (2), characterized in that, The elastic assembly is arranged between the rectangular frame (1) and the dust cover (2), the rotating rod (3) is movably arranged in the dust cover (2), one end of the rotating rod (3) is connected with the drill bit (4), two connecting rods (5) are movably arranged on the inner wall of the dust cover (2), the end of the connecting rod (5) close to the drill bit (4) is connected with the cylindrical gear (6), the end of the cylindrical gear (6) away from the connecting rod (5) is fixedly connected with the rotating shaft (8), two dust exhaust pipes (9) are oppositely embedded on the dust cover (2), the inner side of the two dust exhaust pipes (9) is communicated with the volute (10), the impeller (11) is movably arranged in the volute (10), the rotating shaft (8) penetrates through the volute (10) and is rotatably connected with the volute (10), the impeller (11) is arranged on the rotating shaft (8), the volute (10) is provided with the suction inlet, the movable gear (14) is arranged on the rotating rod (3), and the movable gear (14) is engaged with the cylindrical gear (6).
2. The dust prevention device for underground coal mine drilling according to claim 1, characterized in that, The dust cover (2) is provided with a circular hole, the rotating rod (3) is movably arranged in the circular hole, the outer side of the rotating shaft (8) is sleeved with the limiting plate (7), the limiting plate (7) is fixedly connected with the end of the cylindrical gear (6) away from the connecting rod (5), and the suction inlet on the volute (10) is arranged on the side away from the limiting plate (7).
3. The dust prevention device for underground coal mine drilling according to claim 2, characterized in that, The outer wall of the rotating shaft (8) is fixedly connected with the brush (13), the inner wall of the suction inlet on the volute (10) is provided with the filter screen (12), and the brush (13) and the filter screen (12) are matched with each other.
4. The dust prevention device for underground coal mine drilling according to claim 3, characterized in that, The dust cover (2) is provided with the dust collecting bag (17), the opening end of the dust collecting bag (17) is threadedly connected with the dust collecting pipe (16) through the adapter, the outer side of the dust exhaust pipe (9) is communicated with the hose (15), and the ends of the two hoses (15) away from the dust exhaust pipe (9) are communicated with the dust collecting pipe (16).
5. The dust prevention device for underground coal mine drilling according to claim 4, characterized in that, The elastic assembly comprises a disc (18), a sleeve (19), a spring (20) and a piston rod (21), the disc (18) is fixed on the side of the dust cover (2) close to the rectangular frame (1), the disc (18) is provided with a through hole, the rotating rod (3) is movably matched with the through hole, the two sleeves (19) are oppositely arranged on the inner side of the rectangular frame (1), the piston rod (21) is in T-shaped structure, the piston rod (21) is movably matched with the sleeve (19), the spring (20) is connected between the inner wall of the sleeve (19) and the piston rod (21), and the end of the piston rod (21) away from the spring (20) is fixedly connected with the disc (18).
6. The dust prevention device for underground coal mine drilling according to claim 5, characterized in that, The motor (22) is mounted on the inner side of the rectangular frame (1), the output end of the motor (22) is fixedly connected with the end of the rotating rod (3) away from the drill bit (4), two handle rods (23) are fixedly arranged on the rectangular frame (1), and the anti-skid sleeve is sleeved on the outer side of the handle rod (23).