Dust fall tool of coal mining heading machine

Abstract

The utility model discloses a dust falling tool of a coal mining heading machine, which comprises a heading head, the outer wall of the heading head is fixedly connected with an assembly plate, the outer wall of the assembly plate is fixedly connected with two side plates, the outer walls of the two side plates are both provided with round holes, the inner walls of the round holes are rotatably connected with water outlet pipes, and the water outlet pipes are connected with the water outlet pipes. A plurality of atomizing nozzles are uniformly and fixedly communicated with the outer wall of the water outlet pipe, and the outer wall of one side plate is fixedly connected with a water inlet cylinder. Through the arrangement of the water outlet pipe, the atomization nozzles, the water inlet cylinder, the driving rod, the torsion spring, the fixing block, the limiting block, the gasket, the impeller, the U-shaped blocking piece, the annular block, the connecting block and the water inlet pipe, the impeller is driven by water flow to rotate, and the driving rod rotates back and forth through shielding of the coil spring and the U-shaped blocking piece, so that the atomization nozzles are conveniently driven to swing; and the atomizing nozzles spray water mist far and near in the swinging process, so that the dust falling range is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a dust reduction tool for a coal mining and heading machine. Background Art

[0002] The dust generated by coal mine tunnel boring machines during the excavation process is an important environmental pollution problem and one of the main factors that endanger the health of miners. The dust generated during tunnel excavation operations not only affects the respiratory system of miners, but also affects the visibility of the working area, increasing the risk of accidents for miners. Therefore, it is very important to take comprehensive dust reduction and dust prevention measures during tunnel excavation.

[0003] After searching, the patent document with publication number: CN220134010U discloses a dust suppression device for coal mining and heading machine. Its technical scheme includes: a bottom plate, a through hole, a hydraulic cylinder and a water pipe, a first connecting block is fixed at the middle of both ends of the upper end surface of the bottom plate, a second connecting block is fixed at both ends of the lower side of the water pipe, the lower end of the water pipe is in a right angle shape, the lower end of the second connecting block is connected and installed with a connecting pipe, the upper end of the water pipe is connected and installed with a nozzle, the second connecting block at the lower end of the water pipe is movably mounted on the first connecting block at one end of the bottom plate through a connecting shaft, the second connecting block is fixed at the middle of the lower end of the hydraulic cylinder, the second connecting block at the lower end of the hydraulic cylinder is movably mounted on the first connecting block at the other end of the bottom plate through a connecting shaft, the upper end of the hydraulic cylinder is movably mounted with a hydraulic rod, and the second connecting block is fixed at the middle of the upper end of the hydraulic rod. The utility model is conducive to the advantage of spraying water to suppress dust during coal mining and heading by a heading machine.

[0004] Although the above patent solution solves the shortcomings of traditional methods for reducing dust during tunneling of tunnel boring machines, the solution still has some shortcomings. Because during the tunneling process, the dust has a large diffusion range and a fast diffusion speed. When a single nozzle is used for water spraying, the coverage range is small. Therefore, when the tunneling speed is fast or the dust diffusion speed is fast, the dust reduction demand cannot be met. Therefore, we propose a dust reduction tool for coal mining tunnel boring machines to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a dust reduction tool for a coal mining and heading machine.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A dust reduction tool for a coal mining tunneling machine comprises a tunneling head, the outer wall of the tunneling head is fixedly connected to a mounting plate, the outer wall of the mounting plate is fixedly connected to two side plates, the outer walls of the two side plates are each provided with a circular hole, the inner walls of the circular hole are rotatably connected to a water outlet pipe, the outer wall of the water outlet pipe is evenly fixed with a plurality of atomizing nozzles interconnected, the outer wall of one of the side plates is fixedly connected to a water inlet cylinder, the interior of the water inlet cylinder is provided with a swinging mechanism, and the outer wall of the water outlet pipe is provided with a driving mechanism.

[0008] Preferably, the swing mechanism includes a driving rod, the inner wall of the water inlet cylinder is rotatably connected to one end of the driving rod, the outer wall of the driving rod is sleeved with a torsion spring, the outer wall of the driving rod is fixedly connected with a fixed block, the inner wall of the water inlet cylinder is fixedly connected with two limit blocks, the outer wall of the driving rod is fixedly sleeved with an impeller, the outer wall of the driving rod is fixedly connected with a U-shaped baffle, and the U-shaped baffle is provided to partially block the port of the water inlet pipe to slow down the entry of water, and at the same time, the atomizing nozzle sprays water mist closer, and the coil spring drives the driving rod and the U-shaped baffle to reset, so that the water mist is sprayed out again with high pressure, and the water mist is sprayed farther, thereby expanding the dust reduction range.

[0009] Preferably, the driving mechanism includes an annular block, the outer wall of the water outlet pipe is fixedly connected to the inner wall of the annular block, the outer wall of the driving rod is fixedly connected to a plurality of connecting blocks, one end of each of the plurality of connecting blocks is fixedly connected to the inner wall of the water outlet pipe, and the annular block assists the water outlet pipe to rotate in the water inlet cylinder.

[0010] Preferably, one end of the torsion spring is fixedly connected to the outer wall of the driving rod, and the other end of the torsion spring is fixedly connected to the inner wall of the water inlet cylinder, and the driving rod is driven to rotate by arranging the torsion spring.

[0011] Preferably, a gasket is rotatably sleeved on the outer wall of the driving rod, and the outer wall of the gasket is fixedly connected to the inner wall of the water inlet cylinder. The gasket assists the driving rod in rotating and divides the water inlet cylinder into two areas.

[0012] Preferably, a through hole is formed on the outer wall of the water inlet cylinder, and the inner wall of the through hole is rotatably connected to the outer wall of the water outlet pipe.

[0013] Preferably, a water inlet pipe is fixedly connected to the outer wall of the water inlet cylinder, and one end of the water inlet pipe is fixedly connected to the pump body.

[0014] Compared with the prior art, the advantages of the utility model are:

[0015] This solution arranges a water outlet pipe, an atomizing nozzle, a water inlet cylinder, a driving rod, a torsion spring, a fixed block, a limit block, a gasket, an impeller, a U-shaped baffle, an annular block, a connecting block and a water inlet pipe, and utilizes the water flow to drive the impeller to rotate, and through the shielding of the coil spring and the U-shaped baffle, the driving rod rotates back and forth, which is convenient for driving multiple atomizing nozzles to swing, and the atomizing nozzle sprays water mist from far and near during the swinging process, thereby expanding the dust reduction range. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic cross-sectional structure diagram of a dust reduction tool for a coal mining and tunneling machine proposed by the utility model;

[0018] Figure 2 A dust reduction tool for a coal mining machine proposed in the utility model Figure 1 A schematic diagram of the enlarged structure of part A;

[0019] Figure 3 The utility model is a partial three-dimensional structural schematic diagram of a dust reduction tool for a coal mining and heading machine.

[0020] In the figure: 1. Excavation head; 2. Assembly plate; 3. Side plate; 4. Water outlet pipe; 5. Atomizing nozzle; 6. Water inlet cylinder; 7. Driving rod; 8. Torsion spring; 9. Fixing block; 10. Limiting block; 11. Gasket; 12. Impeller; 13. U-shaped baffle; 14. Ring block; 15. Connecting block; 16. Water inlet pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Depend on Figure 1-Figure 3As shown, it relates to a dust reduction tool for a coal mining tunneling machine, including a tunneling head 1, the outer wall of the tunneling head 1 is fixedly connected to a mounting plate 2, the outer wall of the mounting plate 2 is fixedly connected to two side plates 3, the outer walls of the two side plates 3 are both provided with circular holes, the inner walls of the circular holes are rotatably connected to a water outlet pipe 4, the water outlet pipe 4 rotates through the two side plates 3, the outer wall of the water outlet pipe 4 is evenly fixed with a plurality of atomizing nozzles 5 that are interconnected, water flows through the plurality of atomizing nozzles 5 for spraying, the outer wall of one of the side plates 3 is fixedly connected to a water inlet cylinder 6, the outer wall of the water inlet cylinder 6 is provided with a through hole, the inner wall of the through hole is rotatably connected to the outer wall of the water outlet pipe 4, and the inner wall of the through hole is mechanically sealed.

[0023] A swing mechanism is provided inside the water inlet cylinder 6, and the swing mechanism includes a driving rod 7. The inner wall of the water inlet cylinder 6 is rotatably connected to one end of the driving rod 7 through a bearing. A torsion spring 8 is sleeved on the outer wall of the driving rod 7. One end of the torsion spring 8 is fixedly connected to the outer wall of the driving rod 7, and the other end of the torsion spring 8 is fixedly connected to the inner wall of the water inlet cylinder 6. When the elastic force of the torsion spring 8 is tightened to a certain extent, the driving rod 7 is reset by the torsion spring 8.

[0024] The outer wall of the driving rod 7 is fixedly connected with a fixing block 9, and the inner wall of the water inlet cylinder 6 is fixedly connected with two limit blocks 10. When the fixing block 9 encounters one of the limit blocks 10, the driving rod 7 is limited so that it cannot rotate clockwise. The outer wall rotating sleeve of the driving rod 7 is provided with a gasket 11, and the outer wall of the gasket 11 is fixedly connected to the inner wall of the water inlet cylinder 6. The outer wall fixed sleeve of the driving rod 7 is provided with an impeller 12. The outer wall of the driving rod 7 is fixedly connected with a U-shaped baffle 13. The U-shaped baffle 13 is located at the end of the water inlet pipe 16 to play a blocking role, slowing down the flow of water entering the water inlet cylinder 6.

[0025] The outer wall of the water outlet pipe 4 is provided with a driving mechanism, and the driving mechanism includes an annular block 14. The outer wall of the water outlet pipe 4 is fixedly connected to the inner wall of the annular block 14. The outer wall of the driving rod 7 is fixedly connected to multiple connecting blocks 15. One ends of the multiple connecting blocks 15 are fixedly connected to the inner wall of the water outlet pipe 4. The driving rod 7 drives the multiple connecting blocks 15 and the water outlet pipe 4 to swing. The outer wall of the water inlet cylinder 6 is fixedly connected to a water inlet pipe 16, and one end of the water inlet pipe 16 is fixedly connected to a pump body.

[0026] Working principle: When in use, the pump body runs to transport water into the water inlet cylinder 6, and the water flow impacts the impeller 12 on the driving rod 7. Since the water flow impact direction is biased downward, the impeller 12 is driven to rotate. After the rotation, the impeller 12 drives the driving rod 7 to rotate. The rotation of the driving rod 7 tightens the torsion spring 8. At the same time, the fixing block 9 and the U-shaped baffle 13 rotate clockwise. When the fixing block 9 encounters one of the limit blocks 10, it is limited so that the driving rod 7 cannot rotate clockwise. At this time, the U-shaped baffle 13 is located at the end of the water inlet pipe 16, which plays a blocking role. At the same time, the elasticity of the torsion spring 8 When the force is tightened to a certain extent, the driving rod 7 is reset by the torsion spring 8, and the U-shaped baffle 13 and the fixing block 9 rotate counterclockwise, and the water flow impacts the impeller 12, and the above process is repeated again to form a swinging effect in a certain range. After the driving rod 7 swings, it drives multiple connecting blocks 15 and the water outlet pipe 4 to swing, and the swing of the water outlet pipe 4 drives multiple atomizing nozzles 5 to swing, and when the U-shaped baffle 13 blocks part of the water inflow, the water pressure and water flow are reduced, and the water mist sprayed by the atomizing nozzle 5 is reduced, so that the water mist of the atomizing nozzle is sometimes far and sometimes near during the swinging process, thereby expanding the dust reduction range.

[0027] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A dust reduction tool for a coal mining machine, comprising a tunneling head (1), characterized in that: The outer wall of the tunneling head (1) is fixedly connected to a mounting plate (2), and the outer wall of the mounting plate (2) is fixedly connected to two side plates (3). The outer walls of the two side plates (3) are each provided with a circular hole, and the inner walls of the circular hole are rotatably connected to a water outlet pipe (4). The outer wall of the water outlet pipe (4) is evenly fixed with a plurality of atomizing nozzles (5) that are interconnected, and the outer wall of one of the side plates (3) is fixedly connected to a water inlet cylinder (6), and a swing mechanism is provided inside the water inlet cylinder (6). The outer wall of the water outlet pipe (4) is provided with a driving mechanism.

2. A dust suppression tool for a coal mining machine according to claim 1, characterized in that: The swing mechanism comprises a driving rod (7), the inner wall of the water inlet cylinder (6) is rotatably connected to one end of the driving rod (7), the outer wall of the driving rod (7) is sleeved with a torsion spring (8), the outer wall of the driving rod (7) is fixedly connected with a fixing block (9), the inner wall of the water inlet cylinder (6) is fixedly connected with two limit blocks (10), the outer wall of the driving rod (7) is fixedly sleeved with an impeller (12), and the outer wall of the driving rod (7) is fixedly connected with a U-shaped baffle (13).

3. A dust suppression tool for a coal mining machine according to claim 2, characterized in that: The driving mechanism comprises an annular block (14), the outer wall of the water outlet pipe (4) is fixedly connected to the inner wall of the annular block (14), the outer wall of the driving rod (7) is fixedly connected to a plurality of connecting blocks (15), and one end of each of the plurality of connecting blocks (15) is fixedly connected to the inner wall of the water outlet pipe (4).

4. A dust suppression tool for a coal mining machine according to claim 2, characterized in that: One end of the torsion spring (8) is fixedly connected to the outer wall of the driving rod (7), and the other end of the torsion spring (8) is fixedly connected to the inner wall of the water inlet cylinder (6).

5. A dust suppression tool for coal mining and heading machine according to claim 2, characterized in that: A gasket (11) is rotatably sleeved on the outer wall of the driving rod (7), and the outer wall of the gasket (11) is fixedly connected to the inner wall of the water inlet cylinder (6).

6. A dust suppression tool for a coal mining machine according to claim 1, characterized in that: The outer wall of the water inlet cylinder (6) is provided with a through hole, and the inner wall of the through hole is rotatably connected to the outer wall of the water outlet pipe (4).

7. A dust suppression tool for a coal mining machine according to claim 1, characterized in that: A water inlet pipe (16) is fixedly connected to the outer wall of the water inlet cylinder (6), and one end of the water inlet pipe (16) is fixedly connected to the pump body.

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