Dust-falling spraying device for coal tunneling

Abstract

The utility model discloses a coal tunneling dust fall spraying device which comprises an installation base, two sets of installation grooves are formed in the installation base, sliding bases are installed in the two sets of installation grooves in a sliding mode, a connecting plate is fixedly connected to the sliding bases, an installation frame is fixedly installed on the connecting plate, and a water conveying block is rotatably installed on the installation frame. A nozzle is fixedly mounted on one side of the water conveying block, a rotating rod is rotatably mounted in the mounting frame, a second gear is fixedly mounted outside the rotating rod, and an incomplete gear is meshed with one side of the second gear. According to the water mist spraying device, the spray nozzle rotates back and forth while moving on the mounting base, so that the spraying range is enlarged, the situation that the water amount in a partial area in front of the spray nozzle is too large or too small is avoided, the utilization rate of water resources is increased, waste of the water resources is reduced, meanwhile, water mist spraying is more uniform, the spraying blind area is reduced, and the dust falling effect is further achieved.

Description

Technical Field

[0001] This utility model relates to the field of coal mining equipment, specifically to a coal tunneling dust suppression spray device. Background Technology

[0002] Coal mining refers to the process of excavating and extracting underground or open-pit coal resources from coal seams using various technical means and equipment. A large amount of dust is generated during coal mining, so a dust suppression spray device is needed for dust control.

[0003] To further understand existing coal tunneling dust suppression spray devices, a search revealed Chinese Patent No. CN211081845U, which discloses a dust suppression spray for tunneling machines. The device includes a support frame, a placement frame fixedly connected to one side of the support frame, a fixing plate fixedly connected to one side of the placement frame, fixing bolts on the outer surface of the fixing plate, a side plate fixedly connected to the outer surface of the support frame, a water storage tank on the upper surface of the placement frame, a protective box on the upper surface of the support frame, a water supply pipe inside the water storage tank, and an atomizing nozzle fixedly connected to one end of the water supply pipe.

[0004] After exploration and analysis, the patent has the following drawbacks in actual use: the atomizing nozzle in the patent is fixed and can only spray water mist forward, resulting in uneven spraying and a large spray blind zone, which reduces the dust suppression effect. At the same time, it can cause some areas to have too much or too little water, resulting in a waste of water resources. Utility Model Content

[0005] To address the technical problems of existing dust suppression sprays having large spray blind spots, reducing dust suppression effectiveness, and causing excessive or insufficient water in some areas, resulting in water waste, this utility model provides a dust suppression spray device for coal mining.

[0006] The technical solution adopted by this utility model is as follows: It includes a mounting base with two sets of mounting grooves. A sliding block is slidably mounted in each of the two sets of mounting grooves. A connecting plate is fixedly connected to the sliding block. A mounting frame is fixedly mounted on the connecting plate. A water conveying block is rotatably mounted on the mounting frame. A nozzle is fixedly mounted on one side of the water conveying block. A rotating rod is rotatably mounted in the mounting frame. A second gear is fixedly mounted on the outside of the rotating rod. An incomplete gear meshes with one side of the second gear. A rotating shaft is fixedly connected to the lower end of the incomplete gear. The rotating shaft is rotatably mounted on the connecting plate. The upper end of the rotating rod is fixedly connected to the bottom of the water conveying block. A torsion spring is fixedly connected between the lower end face of the second gear and the mounting frame. The torsion spring is sleeved on the outside of the rotating rod.

[0007] Furthermore, a water delivery hose is fixedly connected to the side of the water delivery block away from the nozzle, and a water delivery channel is opened inside the water delivery block, which is connected to the inside of the water delivery hose.

[0008] By adopting the above technical solution, water in the water delivery hose is delivered to the nozzle through the water delivery channel inside the water delivery block.

[0009] Furthermore, a rack is fixedly installed on one side wall of the mounting groove, and a first gear meshes with one side of the rack. The first gear is fixedly sleeved on the outside of the rotating shaft.

[0010] By adopting the above technical solution, the incomplete gear will rotate when the slide moves in the mounting slot.

[0011] Furthermore, a motor is fixedly mounted on one end of the mounting base, and a bidirectional lead screw is fixedly connected to the drive shaft of the motor. The bidirectional lead screw is rotatably mounted in two sets of mounting slots, and both sets of slides are threadedly connected to the bidirectional lead screw.

[0012] By adopting the above technical solution, the motor drives the bidirectional lead screw to rotate, thereby pushing the slide to move in the mounting slot.

[0013] Furthermore, limiting grooves are formed on both sides of the mounting groove, and limiting blocks are slidably installed in the limiting grooves, with the limiting blocks fixedly installed on both sides of the slide block.

[0014] By adopting the above technical solution, the stability of the slide block when moving in the mounting slot is improved.

[0015] Furthermore, mounting plates are fixedly installed at each of the four corners of the mounting base, and mounting holes are provided on the mounting plates.

[0016] By adopting the above technical solution, the installation and removal of the mounting base can be facilitated.

[0017] The beneficial effects of this utility model are: by using a motor in conjunction with a sliding block, a connecting plate, a mounting frame, and a water conveying block, the nozzle moves on the mounting base, increasing the spraying range, avoiding excessive or insufficient water in the area in front of the nozzle, improving the utilization rate of water resources, and reducing the waste of water resources.

[0018] By using a rack and pinion in conjunction with the first gear, the incomplete gear, the second gear, and the torsion spring, the nozzle rotates back and forth while moving, further increasing the spray range of the nozzle, making the water mist spray more uniform and reducing the spray blind zone, thereby further improving the dust suppression effect on the dust generated during coal mining. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a top view of the present invention;

[0021] Figure 3 This is a cross-sectional structural diagram of the mounting base in this utility model;

[0022] Figure 4 This is a cross-sectional structural diagram of the water conveying block in this utility model.

[0023] The following are the labels in the diagram: 1. Mounting base; 2. Motor; 3. Mounting groove; 4. Slide; 5. Connecting plate; 6. Mounting frame; 7. Water supply block; 8. Nozzle; 9. Water supply hose; 10. Water supply channel; 11. Rotating shaft; 12. First gear; 13. Rack; 14. Incomplete gear; 15. Rotating rod; 16. Second gear; 17. Torsion spring; 18. Limiting groove; 19. Limiting block; 20. Two-way lead screw; 21. Mounting plate; 22. Mounting hole. Detailed Implementation

[0024] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The following is in conjunction with the appendix Figure 1-4 The present invention will be further described below.

[0027] To address the problems existing in the background technology, this application proposes the following technical solution: It includes a mounting base 1, on which two sets of mounting grooves 3 are provided. Slide seats 4 are slidably installed in both sets of mounting grooves 3. A connecting plate 5 is fixedly connected to the slide seat 4. The connecting plate 5 is Z-shaped, with its lower end fixed to the slide seat 4 and its upper end located outside the mounting groove 3. The connecting plate 5 provides installation conditions for the mounting frame 6. The mounting frame 6 is U-shaped and fixedly installed on the connecting plate 5. The mounting frame 6 provides installation conditions for the water conveying block 7 and the rotating rod 15. The water conveying block 7 is rotatably installed on the mounting frame 6. A nozzle 8 is fixedly installed on one side of the water conveying block 7. The nozzle 8 is used to spray water mist to suppress dust generated during coal mining.

[0028] A rotating rod 15 is rotatably mounted in the mounting frame 6. A second gear 16 is fixedly mounted on the outside of the rotating rod 15. An incomplete gear 14 meshes with one side of the second gear 16. A rotating shaft 11 is fixedly connected to the lower end of the incomplete gear 14. The rotating shaft 11 is rotatably mounted on the connecting plate 5. The upper end of the rotating rod 15 is fixedly connected to the bottom of the water conveying block 7. The rotating rod 15 drives the water conveying block 7 to rotate, thereby increasing the dust suppression range of the nozzle 8 and improving the dust suppression effect. A torsion spring 17 is fixedly connected between the lower end face of the second gear 16 and the mounting frame 6. The torsion spring 17 is sleeved on the outside of the rotating rod 15.

[0029] The mounting base 1 is fixedly installed on the flatbed trolley. When the teeth on the incomplete gear 14 mesh with the second gear 16, the rotation of the incomplete gear 14 drives the second gear 16 to rotate. The second gear 16 drives the rotating rod 15 to rotate, and the rotating rod 15 drives the water supply block 7 to rotate, thereby increasing the range of water mist sprayed by the nozzle 8 and improving the dust suppression effect. At the same time, the rotation of the second gear 16 causes the torsion spring 17 to twist. When the teeth of the incomplete gear 14 no longer mesh with the second gear 16, the second gear 16 loses the restriction of the teeth on the incomplete gear 14. The torsion spring 17, in order to return to its initial state, drives the second gear 16 to reverse. The second gear 16 drives the water supply block 7 and the nozzle 8 to reverse through the rotating rod 15. As the incomplete gear 14 rotates, the nozzle 8 rotates back and forth to perform dust suppression operations on the area in front, avoiding the situation where the nozzle 8 only suppresses dust in the area in front, resulting in too much or too little water in some areas. This improves the utilization rate of water resources and reduces the waste of water resources.

[0030] Furthermore, a water delivery hose 9 is fixedly connected to the side of the water delivery block 7 away from the nozzle 8, and a water delivery channel 10 is opened inside the water delivery block 7, which is connected to the inside of the water delivery hose 9.

[0031] The flatbed trolley is equipped with a water tank, which contains a water pump. The water pressurized by the water pump enters the internal water channel 10 of the water conveying block 7 through the water conveying hose 9, and then is sprayed out as water mist through the nozzle 8 to suppress dust during the coal mining process.

[0032] To further explain, a rack 13 is fixedly installed on one side wall of the mounting groove 3, and a first gear 12 is meshed on one side of the rack 13. The first gear 12 is fixedly sleeved on the outside of the rotating shaft 11.

[0033] When the slide block 4 moves in the mounting groove 3, the first gear 12 meshes with the rack 13, causing the first gear 12 to rotate. The first gear 12 drives the rotating shaft 11 to rotate, and the rotating shaft 11 drives the incomplete gear 14 to rotate. This allows the slide block 4 to move the nozzle 8 through the connecting plate 5 and the mounting frame 6, while the nozzle 8 swings back and forth. This further increases the range of water mist sprayed by the nozzle 8, making the water mist spray more even, reducing blind spots, and improving the dust suppression effect.

[0034] To further explain, a motor 2 is fixedly mounted on one end of the mounting base 1, and a bidirectional lead screw 20 is fixedly connected to the drive shaft of the motor 2. The bidirectional lead screw 20 is rotatably mounted in two sets of mounting slots 3, and both sets of slides 4 are threadedly connected to the bidirectional lead screw 20.

[0035] The motor 2 drives the bidirectional lead screw 20 to rotate, which in turn pushes the two sets of slides 4 to move relative to each other. The two sets of slides 4 move the nozzles 8 through the connecting plate 5 and the mounting frame 6 to increase the spraying range, reduce the spraying blind spot, and improve the spraying efficiency.

[0036] To further explain, limit grooves 18 are provided on both sides of the mounting groove 3, and limit blocks 19 are slidably installed in the limit grooves 18. The limit blocks 19 are fixedly installed on both sides of the slide block 4.

[0037] The limiting groove 18, together with the limiting block 19, guides and limits the movement of the slide 4, preventing the slide 4 from flipping over when the motor 2 drives the bidirectional lead screw 20 to rotate, thus improving the stability of the slide 4 when it moves in the mounting groove 3, and thereby improving the stability of the device during dust suppression operation.

[0038] Furthermore, mounting plates 21 are fixedly installed at all four corners of the mounting base 1, and mounting holes 22 are provided on the mounting plates 21.

[0039] The mounting plate 21 is fixed to the flatbed trolley by passing the fixing bolt through the mounting hole 22, thereby fixing the mounting seat 1 on the flatbed trolley. The mounting plate 21 facilitates the installation and disassembly of the mounting seat 1 and improves the practicality of the device.

[0040] The specific operation is as follows: Fix the mounting plate 21 to the flatbed trolley using fixing bolts passing through mounting holes 22. Connect the water supply hose 9 to the water storage tank on the flatbed trolley. Pressurized water enters the internal water supply channel 10 of the water supply block 7 through the water supply hose 9, and then forms a water mist through the nozzles 8 for dust suppression during coal mining. Start the motor 2, which drives the bidirectional lead screw 20 to rotate. The bidirectional lead screw 20 pushes two sets of sliding blocks 4 to move relative to each other. The sliding blocks 4, through the connecting plate 5 and mounting frame 6, drive the nozzles 8 to move, increasing the spray range of the nozzles 8. While the sliding blocks 4 move in the mounting groove 3, the first gear 12 meshes with the rack 13 and rotates. The first gear 12 drives the rotating shaft 11 to rotate, and the rotating shaft 11 drives the incomplete gear 14 to rotate. When the teeth on the full gear 14 mesh with the second gear 16, the incomplete gear 14 drives the second gear 16 to rotate. The second gear 16 drives the rotating rod 15 to rotate, and the rotating rod 15 drives the water conveying block 7 to rotate, thereby increasing the water mist range sprayed by the nozzle 8 and improving the dust suppression effect. At the same time, the rotation of the second gear 16 causes the torsion spring 17 to twist. When the teeth of the incomplete gear 14 no longer mesh with the second gear 16, the second gear 16 loses the restriction of the teeth on the incomplete gear 14. The torsion spring 17, in order to restore the initial state, drives the second gear 16 to reverse. The second gear 16 drives the water conveying block 7 and the nozzle 8 to reverse through the rotating rod 15. As the incomplete gear 14 rotates, the nozzle 8 rotates back and forth, realizing that the nozzle 8 moves and rotates back and forth at the same time, increasing the spray range.

[0041] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0042] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A coal tunneling dust suppression spraying device, characterized in that, The utility model provides a kind of water supply device, including mounting seat (1), two groups of installation slot (3) are opened in the mounting seat (1), two groups of the sliding seat (4) are slidably installed in the installation slot (3), the connecting plate (5) is fixedly connected on the sliding seat (4), the installation frame (6) is fixedly installed on the connecting plate (5), the water delivery block (7) is rotatably installed on the installation frame (6), the nozzle (8) is fixedly installed on the side of the water delivery block (7), the rotating rod (15) is rotatably installed in the installation frame (6), the second gear (16) is fixedly installed on the outside of the rotating rod (15), the incomplete gear (14) is engaged on the side of the second gear (16), the rotating shaft (11) is fixedly connected to the lower end of the incomplete gear (14), the rotating shaft (11) is rotatably installed on the connecting plate (5), the upper end of the rotating rod (15) is fixedly connected at the bottom of the water delivery block (7), the torsion spring (17) is fixedly connected between the lower end surface of the second gear (16) and installation frame (6), the torsion spring (17) is sleeved on the outside of the rotating rod (15).

2. The coal tunneling dust suppression spraying device according to claim 1, characterized in that, The water delivery block (7) is fixedly connected with water delivery hose (9) on the side away from the nozzle (8), and a water delivery channel (10) is formed in the water delivery block (7).

3. The coal tunneling dust suppression spraying device according to claim 2, characterized in that, A rack (13) is fixedly installed on one side wall of the installation slot (3), and a first gear (12) is engaged on one side of the rack (13).

4. The coal tunneling dust suppression spraying device according to claim 3, characterized in that, A motor (2) is fixedly installed at one end of the mounting seat (1), a bidirectional screw rod (20) is fixedly connected to a drive shaft of the motor (2), and the bidirectional screw rod (20) is rotatably installed in the two installation slots (3).

5. The coal tunneling dust suppression spraying device according to claim 4, characterized in that, Limiting grooves (18) are formed in the two side walls of the installation slot (3), and a limiting block (19) is slidably installed in the limiting groove (18).

6. The coal tunneling dust suppression spraying device according to claim 5, characterized in that, Mounting plates (21) are fixedly installed at four corners of the mounting seat (1), and mounting holes (22) are formed in the mounting plates (21).

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