Dust removal device for tunnel boring machine

Abstract

The present invention discloses a dust removal device for a tunnel boring machine, which relates to the field of support technology and includes a first frame, a second frame and a push-pull mounting block, wherein the first frame is located in front of the second frame, the push-pull mounting block is fixedly mounted on both sides of the first frame and the second frame, and the front end of the push-pull mounting block is fixedly mounted with a push-pull structure. The dust removal device for a tunnel boring machine described in the present invention changes the water spray angle of all water spray heads to cooperate with dust removal in different occasions. The water spray angle adjustment is more convenient. The water spray head is used to spray water on the tunnel boring head to remove dust from the surface of the tunnel boring head after work, thereby realizing a dual-purpose dust removal function. The diameter of the water spray head and the water spray gap are changed according to needs, making the device more suitable for use with tunnel boring machines of different sizes, so that the dust collection box can be installed in different positions and at different angles. By changing the water spray head, dust can be removed from different positions on the end rod of the tunnel boring machine.

Description

Technical Field

[0001] The present invention relates to the field of dust removal, and in particular to a dust removal device for a roadheader. Background Art

[0002] The purpose of the roadheader dust removal device is to reduce dust pollution. It is installed on the roadheader to remove the dust generated by the roadheader. It mainly uses a nozzle to spray water to form a water barrier to remove dust and block dust. It is widely used on various roadheaders.

[0003] The Chinese patent with the publication number of "CN222207995U" discloses "a dust removal device for a tunnel boring machine, wherein a dust removal nozzle seat is provided on the upper part of the dust suction port, a dust removal nozzle head is provided on the lower part of the dust removal nozzle seat, and the exhaust fan blades and the centrifugal net cylinder are driven by the driving motor to rotate on the inner sides of the exhaust cylinder seat and the separation cylinder seat respectively". Although it can effectively remove the dust generated by the tunnel boring machine during operation, realize the separation and recovery of water, and effectively recycle and reuse the water while avoiding the waste of water outflow, which is beneficial to the site operation and can save a lot of water", the water spraying angle of the device is fixed when it is in use, and can only be used to remove the dust generated by the tunnel boring machine during operation. The water spraying angle cannot be changed as the tunnel boring machine moves, so it is not convenient to use with dust removal in different occasions, and the device can only spray water to remove dust in the air. After the tunnel boring machine works, a large amount of dust will remain on the tunneling head of the tunnel boring machine. The device cannot remove the dust on the tunneling head, which reduces the use effect. At the same time, it is also impossible to change the water spraying gap of the sprinkler head according to needs, which makes the device unsuitable for use with different sizes and different needs. Finally, the device usually installs an air suction box for additional dust suction and dust removal, but the installation position of the air suction dust removal is also fixed, which cannot be suitable for dust removal with different needs, reducing the dust removal effect. Summary of the Invention

[0004] The main purpose of the present invention is to provide a dust removal device for a roadheader, which can effectively solve the technical problems raised by the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A dust removal device for a tunnel boring machine comprises a first frame, a second frame and a push-pull mounting block, wherein the first frame is located in front of the second frame, the push-pull mounting block is fixedly mounted on both sides of the first frame and the second frame, the front end of the push-pull mounting block is fixedly mounted with a push-pull structure, the front end of the first frame and the rear end of the second frame are both fixedly mounted with a connecting frame, a dust suction structure is fixedly mounted on the outside of the connecting frame, a plurality of driving gears are movably mounted on the inside of the first frame, a lifting motor is fixedly mounted on the rear end of the first frame behind the driving gear, and the end of the first frame is fixedly mounted It is equipped with a first ring, a lifting gear column is movably installed inside the first ring, a second ring is fixedly installed on the end of the second frame, a lifting guide rod is movably installed inside the second ring, a rotating mounting frame is fixedly installed on the lower ends of the lifting gear column and the lifting guide rod, a nozzle mounting plate is movably installed in the middle of every two of the rotating mounting frames, two water spray heads are fixedly installed on the outer side of the nozzle mounting plate, a water pipe joint is fixedly installed on the front end of the nozzle mounting plate, a rotating motor is fixedly installed on one side of the rotating mounting frame, and a linkage rod structure is movably installed between multiple rotating mounting frames.

[0007] As a further solution of the present invention, the push-pull structure includes a push-pull cylinder, a cylinder piston rod and a cylinder mounting bracket. The push-pull cylinder is located in front of the first frame, the cylinder piston rod is movably installed at the front end of the push-pull cylinder, and the cylinder mounting bracket is fixedly installed on one side of the push-pull cylinder.

[0008] As a further solution of the present invention, the rear end of the cylinder piston rod is fixedly connected to the push-pull mounting block, a locking anchor is fixedly installed between the two push-pull mounting blocks, and the front end of the locking anchor is fixedly connected to the cylinder piston rod.

[0009] As a further solution of the present invention, the dust collection structure includes a quick-release clamp ring, a mounting rod, a dust collection box and an air pipe joint. The quick-release clamp ring is fixedly sleeved on the outside of the connecting frame, the mounting rod is welded to the outside of the quick-release clamp ring, the dust collection box is fixedly installed in front of the outside of the mounting rod, and the air pipe joint is fixedly installed on the opposite end face of the air inlet of the dust collection box.

[0010] As a further solution of the present invention, the air pipe joint is connected to the interior of the dust collection box, and the dust collection box is located in front of the first frame.

[0011] As a further solution of the present invention, the rotating shaft of the lifting motor passes through the first frame and is fixedly connected to the driving gear, and one side of the driving gear passes through the first ring and is meshed with the lifting gear column.

[0012] As a further solution of the present invention, the first frame and the second frame are both arranged in an annular shape, the nozzle mounting plate is located between the first frame and the second frame, and multiple nozzle mounting plates are arranged in a circle around the center of the first frame and the second frame.

[0013] As a further solution of the present invention, the rotary motor is fixedly mounted on one side of the upper rotary mounting frame, the rotating shaft of the rotary motor passes through the rotary mounting frame and is fixedly connected to the nozzle mounting plate, and the nozzle mounting plate rotates between the two rotary mounting frames.

[0014] As a further solution of the present invention, the linkage rod structure includes a spline rod, a telescopic sleeve rod and a universal shaft. The spline rod is fixedly mounted on one side of the two rotating mounting frames, the telescopic sleeve rod is movably sleeved on one end of the spline rod, and the universal shaft is fixedly mounted on one end of the two telescopic sleeve rods.

[0015] As a further solution of the present invention, the spline rod is inserted into the telescopic sleeve rod for telescopic movement, and one end of the spline rod away from the telescopic sleeve rod passes through the rotating mounting frame and is fixedly connected to the nozzle mounting plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: when the sprinkler head sprays water, the operation of the rotary motor drives all the sprinkler head mounting plates to rotate, thereby changing the sprinkler angles of all the sprinkler heads, making it easier to adjust the sprinkler angles for dust removal in different occasions. The invention has a simple structure and is convenient for spraying water and removing dust at different angles in different occasions.

[0017] When the tunneling head needs to be dusted, the sprinkler head is turned by rotating the sprinkler head mounting plate, and the first frame and the second frame are moved to the outside of the tunneling head. The sprinkler head is then used to spray water on the tunneling head to remove dust from the surface of the tunneling head after operation, thus achieving a dual dust removal function and making dust removal more convenient after the tunneling machine is used.

[0018] When spraying water at different positions, since the diameter of the tunneling head is larger than the diameter of the end rod, the rotating mounting frame and the nozzle mounting plate are raised and lowered by the operation of the lifting motor. Multiple nozzle mounting plates are raised and lowered simultaneously, which can change the inner diameter between multiple sprinkler heads. Therefore, when spraying water at different positions of the tunneling head for dust removal and water barrier, the diameter of the sprinkler head and the gap between the sprinklers can be changed according to needs, making the device more suitable for use with tunneling machines of different sizes. It is also convenient to use it on tunneling heads with larger diameters for water spraying and dust removal.

[0019] When vacuuming is needed, air can be sucked in through the dust box to suck in and remove the dust that has passed through the water barrier. The quick-release clamp ring can be installed on the connecting frame in different positions and at different angles according to different usage requirements. The dust box can be installed in different positions and at different angles. By changing the water spray head, dust can be sucked in different positions on the end rod of the tunnel boring machine, further improving the dust removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a schematic diagram of the overall structure of a dust removal device for a roadheader according to the present invention;

[0021] Figure 2 This is a rear view of a dust removal device for a roadheader according to the present invention;

[0022] Figure 3 This is an enlarged view of the first frame and the second frame of a dust removal device for a roadheader according to the present invention;

[0023] Figure 4 This is an exploded view of the dust collection structure in a dust removal device for a roadheader according to the present invention;

[0024] Figure 5 A partial view of a first frame and a second frame in a dust removal device for a roadheader according to the present invention;

[0025] Figure 6 This is a partial view of a nozzle mounting plate in a dust removal device for a roadheader according to the present invention;

[0026] Figure 7 This is an enlarged view of the second frame of a dust removal device for a roadheader according to the present invention;

[0027] Figure 8 This is a partial view of a water pipe joint after rotation in a dust removal device for a tunnel boring machine according to the present invention.

[0028] In the figure: 1. First frame; 2. Second frame; 3. Connecting frame; 4. Push-pull mounting block; 5. Push-pull structure; 6. Push-pull cylinder; 7. Cylinder piston rod; 8. Cylinder mounting frame; 9. Dust suction structure; 10. Quick-release clamp ring; 11. Mounting rod; 12. Dust suction box; 13. Air pipe joint; 14. Driving gear; 15. Lifting motor; 16. First set of rings; 17. Lifting gear column; 18. Second set of rings; 19. Lifting guide rod; 20. Rotating mounting frame; 21. Nozzle mounting plate; 22. Sprinkler head; 23. Water pipe joint; 24. Rotating motor; 25. Linkage rod structure; 26. Spline rod; 27. Telescopic sleeve; 28. Universal joint; 29. ​​Locking anchor. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] like Figures 1-8As shown, a dust removal device for a tunnel boring machine includes a first frame 1, a second frame 2 and a push-pull mounting block 4. The first frame 1 is located in front of the second frame 2, and the push-pull mounting block 4 is fixedly installed on both sides of the first frame 1 and the second frame 2. The front end of the push-pull mounting block 4 is fixedly installed with a push-pull structure 5. The front end of the first frame 1 and the rear end of the second frame 2 are both fixedly installed with a connecting frame 3. The outer side of the connecting frame 3 is fixedly installed with a dust suction structure 9. A plurality of driving gears 14 are movably installed on the inner side of the first frame 1. The rear end of the first frame 1 is located behind the driving gear 14 and is fixedly installed with a lifting motor 15. The end of the first frame 1 is fixedly installed with a first set Ring 16, a lifting gear column 17 is movably installed inside the first ring 16, a second ring 18 is fixedly installed at the end of the second frame 2, a lifting guide rod 19 is movably installed inside the second ring 18, and a rotating mounting frame 20 is fixedly installed at the lower ends of the lifting gear column 17 and the lifting guide rod 19. A nozzle mounting plate 21 is movably installed in the middle of every two rotating mounting frames 20, two water spray heads 22 are fixedly installed on the outside of the nozzle mounting plate 21, and a water pipe joint 23 is fixedly installed at the front end of the nozzle mounting plate 21. A rotating motor 24 is fixedly installed on one side of the rotating mounting frame 20, and a linkage rod structure 25 is movably installed between multiple rotating mounting frames 20.

[0031] In this embodiment, the push-pull structure 5 includes a push-pull cylinder 6, a cylinder piston rod 7 and a cylinder mounting bracket 8. The push-pull cylinder 6 is located in front of the first frame 1. The cylinder piston rod 7 is movably installed at the front end of the push-pull cylinder 6. The cylinder mounting bracket 8 is fixedly installed on one side of the push-pull cylinder 6. The cylinder piston rod 7 and the push-pull cylinder 6 constitute a cylinder structure for telescopic push-pull drive.

[0032] In this embodiment, the rear end of the cylinder piston rod 7 is fixedly connected to the push-pull mounting block 4, and a locking anchor 29 is fixedly installed between the two push-pull mounting blocks 4. The front end of the locking anchor 29 is fixedly connected to the cylinder piston rod 7. The locking anchor 29 has a reinforcing effect, so that the first frame 1 and the second frame 2 are connected.

[0033] In this embodiment, the dust collection structure 9 includes a quick-release clamp ring 10, a mounting rod 11, a dust collection box 12 and an air pipe joint 13. The quick-release clamp ring 10 is fixedly sleeved on the outside of the connecting frame 3, the mounting rod 11 is welded to the outside of the quick-release clamp ring 10, the dust collection box 12 is fixedly installed in front of the outside of the mounting rod 11, and the air pipe joint 13 is fixedly installed on the opposite end face of the air inlet of the dust collection box 12. The air pipe joint 13 is connected to the interior of the dust collection box 12. The dust collection box 12 is located in front of the first frame 1. The air pipe is installed on the air pipe joint 13, and then air is extracted and dust is removed from the dust collection box 12.

[0034] In this embodiment, the rotating shaft of the lifting motor 15 passes through the first frame 1 and is fixedly connected to the driving gear 14. One side of the driving gear 14 passes through the first ring 16 and is meshed with the lifting gear column 17. The lifting motor 15 drives the driving gear 14 to rotate, and the driving gear 14 then drives the lifting gear column 17 to move up and down.

[0035] In this embodiment, the first frame 1 and the second frame 2 are both arranged in a circular shape, the nozzle mounting plate 21 is located between the first frame 1 and the second frame 2, and multiple nozzle mounting plates 21 are arranged in a circular shape around the center of the first frame 1 and the second frame 2. The circular arrangement of the multiple nozzle mounting plates 21 causes the multiple water heads 22 to also form a circular arrangement structure.

[0036] In this embodiment, the rotary motor 24 is fixedly mounted on one side of the upper rotary mounting frame 20. The rotating shaft of the rotary motor 24 passes through the rotary mounting frame 20 and is fixedly connected to the nozzle mounting plate 21. The nozzle mounting plate 21 rotates around the two rotary mounting frames 20, and the upper nozzle mounting plate 21 is driven to rotate by a single rotary motor 24.

[0037] In this embodiment, the linkage rod structure 25 includes a spline rod 26, a telescopic sleeve rod 27 and a universal shaft 28. The spline rod 26 is fixedly mounted on one side of the two rotating mounting frames 20, the telescopic sleeve rod 27 is movably sleeved on one end of the spline rod 26, and the universal shaft 28 is fixedly mounted on one end of the two telescopic sleeve rods 27. The universal shaft 28 has the effect of transmitting at different angles.

[0038] In this embodiment, the spline rod 26 is inserted into the telescopic sleeve 27 and is telescopically movable. The end of the spline rod 26 away from the telescopic sleeve 27 passes through the rotating mounting frame 20 and is fixedly connected to the nozzle mounting plate 21. Through the telescopic movable structure of the spline rod 26 and the telescopic sleeve 27, the nozzle mounting plate 21 can be raised and lowered by changing its length through the extension and contraction of the spline rod 26 and the telescopic sleeve 27, thereby maintaining the connection of multiple nozzle mounting plates 21 at different positions.

[0039] It should be noted that the present invention is a dust removal device for a tunnel boring machine. When in use, the cylinder mounting frame 8 is installed on the end rod of the tunnel boring machine to connect and install the entire device to the tunnel boring machine. Then the first frame 1 and the second frame 2 are sleeved on the end rod. At the same time, the tunnel boring head is located behind the first frame 1 and the second frame 2. Therefore, the multiple water sprinklers 22 on the sprinkler mounting plate 21 are arranged in a ring on the end rod of the tunnel boring machine. Then, the water pipe is connected and water is transported through the water pipe joint 23. The water is sprayed from the sprinkler heads 22 through the sprinkler mounting plate 21. When the water sprayed by the multiple annular sprinkler heads 22 forms an annular water barrier, the annular water barrier is used to block dust and remove dust when the tunnel boring head is operating.

[0040] When the sprinkler head 22 sprays water, the top single sprinkler head mounting plate 21 is driven to rotate within the two rotating mounting frames 20 by the operation of the rotary motor 24. When the single sprinkler head mounting plate 21 rotates, the spline rod 26 on one side is also driven to rotate. The spline rod 26, the telescopic sleeve rod 27 and the universal shaft 28 are then used to drive the next sprinkler head mounting plate 21 to rotate. The cycle is repeated to drive all sprinkler head mounting plates 21 to rotate. At the same time, the universal transmission structure of the universal shaft 28 enables the circularly arranged sprinkler head mounting plates 21 to rotate, thereby changing the water spraying angles of all sprinkler heads 22 to meet the needs of dust removal in different occasions.

[0041] When the tunneling head needs to be dusted, the sprinkler head 22 is turned by rotating the sprinkler head mounting plate 21, and multiple sprinkler heads 22 are aimed at the inner sides of the first frame 1 and the second frame 2 to spray water. Then, the operation of the push-pull cylinder 6 drives the cylinder piston rod 7 to move back and forth, and the cylinder piston rod 7 then drives the first frame 1 and the second frame 2 to move back and forth as a whole through the push-pull mounting block 4, so that the first frame 1 and the second frame 2 can be moved to the outside of the tunneling head. Then, the sprinkler head 22 is used to spray water on the tunneling head inside the first frame 1 and the second frame 2 to remove dust from the surface of the tunneling head after work.

[0042] When spraying water at different positions, since the diameter of the tunneling head is larger than the diameter of the end head rod, the operation of the lifting motor 15 drives the driving gear 14 to rotate, and the driving gear 14 drives the meshing lifting gear column 17 to move up and down in the first ring 16, and the lifting guide rod 19 also moves up and down in the second ring 18, thereby lifting and lowering the rotating mounting frame 20 and the nozzle mounting plate 21. When multiple nozzle mounting plates 21 are lifted and lowered at the same time, the inner diameters between the multiple water spray heads 22 can be changed, so that when spraying water at different positions of the tunneling head dust removal and water barrier, the water spraying gap between the water spray heads 22 can be changed according to needs;

[0043] When dust collection is required, the quick-release clamp ring 10 is installed on the connecting frame 3 outside the first frame 1 and the second frame 2 to fix the dust collection box 12, and then the air pipe for suction is connected to the air pipe joint 13 to suck air through the dust collection box 12 to suck in the dust that passes through the water barrier. At the same time, according to different usage requirements, the quick-release clamp ring 10 is installed on the connecting frame 3 at different positions and at different angles, so that the dust collection box 12 can be installed in different positions and at different angles. By changing the water spray head 22, dust collection can be performed on different positions on the end rod of the tunneling machine.

[0044] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for a roadheader, comprising a first frame (1), a second frame (2) and a push-pull mounting block (4), wherein the first frame (1) is located in front of the second frame (2), and the push-pull mounting block (4) is fixedly mounted on both sides of the first frame (1) and the second frame (2), characterized in that: The front end of the push-pull mounting block (4) is fixedly mounted with a push-pull structure (5); the front end of the first frame (1) and the rear end of the second frame (2) are both fixedly mounted with a connecting frame (3); the outer side of the connecting frame (3) is fixedly mounted with a dust collecting structure (9); the inner side of the first frame (1) is movably mounted with a plurality of driving gears (14); the rear end of the first frame (1) is located behind the driving gears (14) and is fixedly mounted with a lifting motor (15); the end of the first frame (1) is fixedly mounted with a first ring (16); the interior of the first ring (16) is movably mounted with a lifting tooth column (17); the end of the second frame (2) is fixedly mounted with a first ring (16); A second sleeve (18) is provided, a lifting guide rod (19) is movably installed inside the second sleeve (18), a rotating mounting frame (20) is fixedly installed at the lower end of the lifting tooth column (17) and the lifting guide rod (19), a nozzle mounting plate (21) is movably installed between each two rotating mounting frames (20), two water spray heads (22) are fixedly installed on the outer side of the nozzle mounting plate (21), a water pipe joint (23) is fixedly installed at the front end of the nozzle mounting plate (21), a rotating motor (24) is fixedly installed on one side of the rotating mounting frame (20), and a linkage rod structure (25) is movably installed between the plurality of rotating mounting frames (20).

2. A dust removal device for a roadheader according to claim 1, characterized in that: The push-pull structure (5) comprises a push-pull cylinder (6), a cylinder piston rod (7) and a cylinder mounting frame (8); the push-pull cylinder (6) is located in front of the first frame (1); the cylinder piston rod (7) is movably mounted on the front end of the push-pull cylinder (6); and the cylinder mounting frame (8) is fixedly mounted on one side of the push-pull cylinder (6).

3. A dust removal device for a roadheader according to claim 2, characterized in that: The rear end of the cylinder piston rod (7) is fixedly connected to the push-pull mounting block (4), a locking anchor (29) is fixedly installed between the two push-pull mounting blocks (4), and the front end of the locking anchor (29) is fixedly connected to the cylinder piston rod (7).

4. The dust removal device for a roadheader according to claim 1, characterized in that: The dust collection structure (9) comprises a quick-release clamp ring (10), a mounting rod (11), a dust collection box (12) and an air pipe joint (13); the quick-release clamp ring (10) is fixedly sleeved on the outside of the connecting frame (3); the mounting rod (11) is welded to the outside of the quick-release clamp ring (10); the dust collection box (12) is fixedly mounted in front of the outside of the mounting rod (11); and the air pipe joint (13) is fixedly mounted on the end face opposite to the air inlet of the dust collection box (12).

5. A dust removal device for a roadheader according to claim 4, characterized in that: The air pipe joint (13) is connected to the interior of the dust collection box (12), and the dust collection box (12) is located in front of the first frame (1).

6. The dust removal device for a roadheader according to claim 1, characterized in that: The rotating shaft of the lifting motor (15) passes through the first frame (1) and is fixedly connected to the driving gear (14); one side of the driving gear (14) passes through the first collar (16) and is meshed with the lifting gear column (17).

7. The dust removal device for a roadheader according to claim 1, characterized in that: The first frame (1) and the second frame (2) are both arranged in a circular ring shape, the nozzle mounting plate (21) is located between the first frame (1) and the second frame (2), and a plurality of nozzle mounting plates (21) are arranged in a circular shape around the center of the first frame (1) and the second frame (2).

8. The dust removal device for a roadheader according to claim 1, characterized in that: The rotary motor (24) is fixedly mounted on one side of the upper rotary mounting frame (20), and the rotating shaft of the rotary motor (24) passes through the rotary mounting frame (20) and is fixedly connected to the nozzle mounting plate (21), and the nozzle mounting plate (21) rotates around the two rotary mounting frames (20).

9. The dust removal device for a roadheader according to claim 1, characterized in that: The linkage rod structure (25) comprises a spline rod (26), a telescopic sleeve rod (27) and a universal shaft (28), wherein the spline rod (26) is fixedly mounted on one side of the two rotating mounting frames (20), the telescopic sleeve rod (27) is movably sleeved on one end of the spline rod (26), and the universal shaft (28) is fixedly mounted on one end of the two telescopic sleeve rods (27).

10. The dust removal device for a roadheader according to claim 9, characterized in that: The spline rod (26) is inserted into the telescopic sleeve rod (27) for telescopic movement, and one end of the spline rod (26) away from the telescopic sleeve rod (27) passes through the rotating mounting frame (20) and is fixedly connected to the nozzle mounting plate (21).

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