Residue soil stirring device of shield tunneling machine

Abstract

The utility model relates to the technical field of muck stirring of shield tunneling machines, in particular to a muck stirring device of a shield tunneling machine. According to the technical scheme, the device comprises a stirring barrel, the outer ring of the top of the stirring barrel is in threaded connection with a barrel cover, a mounting frame is arranged on the top surface of the barrel cover, a motor is arranged on the top surface of the mounting frame, and the output end of the motor penetrates and extends to the inner bottom surface of the mounting frame and is provided with a rotating rod. Through the arrangement of the mounting frame, the motor, the upper fluted disc, the gear and the lower fluted disc, the rotating rod and the sleeve rod can rotate in opposite directions, so that the internal stirring blades and the sleeve rod are driven to rotate in opposite directions, the stirring efficiency and the stirring uniformity are improved, and the external stirring blades are attached to the inner wall of the stirring barrel, so that the stirring efficiency is improved. The inner wall of the stirring barrel is scraped and cleaned while the external stirring blades rotate, so that muck is prevented from being adhered to the inner wall of the stirring barrel to influence the stirring efficiency, dead angles of stirring are reduced, and the muck and the modifier are fully mixed.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine slag mixing technology, and in particular to a tunnel boring machine slag mixing device. Background Technology

[0002] A tunnel boring machine (TBM) is a large-scale mechanical equipment used for tunnel construction. It has many advantages such as high efficiency, safety, and environmental friendliness, and is widely used in modern tunnel engineering construction. However, TBMs generate a large amount of excavated soil during the construction process.

[0003] The excavated soil encountered during tunnel boring machine (TBM) construction often has complex properties and needs to be thoroughly mixed with added modifiers, such as bentonite, foaming agents, and polymers, to adjust its consistency, fluidity, and permeability, thereby achieving better construction performance and facilitating subsequent transportation and processing. Furthermore, in strata rich in clay minerals or with high water content, the excavated soil may clump together or adhere to the inner walls of the equipment, affecting the normal operation of the soil chamber and the smooth operation of excavation equipment such as screw conveyors, leading to poor excavation and even equipment failure. To prevent soil adhesion and maintain its loose state, it is necessary to mix the excavated soil to make it easier to transport and to ensure thorough mixing with the modifier. However, existing excavated soil mixing devices often produce uneven mixing and dead zones, resulting in insufficient mixing of the excavated soil and modifier, thus affecting the performance improvement effect. Therefore, a new excavated soil mixing device for TBMs is needed. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a tunnel boring machine slag mixing device.

[0005] The technical solution of this utility model: A tunnel boring machine slag mixing device includes a mixing drum. A drum cover is threadedly connected to the top outer ring of the mixing drum. A mounting frame is provided on the top surface of the drum cover. A motor is provided on the top surface of the mounting frame. The output end of the motor extends through to the inner bottom surface of the mounting frame and is provided with a rotating rod. An upper gear plate is provided on the top outer ring of the rotating rod. Two gears are meshed on the bottom of the upper gear plate. The bottom of the two gears are meshed on the same lower gear plate. An inner mixing blade is provided on the outer ring of the rotating rod. A sleeve is provided on the bottom surface of the lower gear plate. A connecting rod one is provided on one side of the bottom end of the sleeve. An outer mixing blade is provided on the other end of the connecting rod one. A connecting rod two is provided on the bottom end of the outer mixing blade. A collar is provided on the other end of the connecting rod two. The inner ring of the collar is rotatably connected to the outer ring of the rotating rod.

[0006] Preferably, the top surface of the upper gear plate is rotatably connected to the inner top surface of the mounting frame, the top surface of the upper gear plate is provided with an L-shaped ring bar, and the inner top surface of the mounting frame is provided with an L-shaped ring groove, the L-shaped ring bar and the L-shaped ring groove are rotatably connected.

[0007] Preferably, the inner rings of both gears are provided with support rods, and the outer rings of the two support rods that are far apart from each other are rotatably provided with support plates, and the bottom surface of the support plates is fixedly connected to the top surface of the bucket lid.

[0008] Preferably, the bottom surface of the lower gear disc is rotatably connected to the top surface of the barrel lid, the bottom surface of the lower gear disc is provided with an L-shaped ring bar, and the top surface of the barrel lid is provided with an L-shaped ring groove. The L-shaped ring bar and the L-shaped ring groove are rotatably connected.

[0009] Preferably, the inner ring of the sleeve rod is rotatably connected to the outer ring of the rotating rod, and the outer ring of the sleeve rod is rotatably connected to the bucket lid.

[0010] Preferably, the mixing tank is arranged in an inverted cone shape, and the outer mixing blades are also arranged in an inverted cone shape, with the outermost ring of the outer mixing blades fitting against the inner wall of the mixing tank.

[0011] Preferably, a rectangular block is provided at the bottom of the rotating rod, and a rectangular frame is slidably provided on the outside of the rectangular block. Connecting rods three are provided on both the left and right sides of the rectangular frame. The same T-shaped ring is provided on the side of the two connecting rods three that are far apart from each other. A T-shaped ring groove is opened at the bottom of the inside of the mixing tank, and the T-shaped ring is rotatably connected to the T-shaped ring groove.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] This invention, by setting up a mounting frame, motor, upper gear plate, gear, and lower gear plate, enables the rotating rod and sleeve rod to rotate in opposite directions, thereby driving the internal stirring blades and sleeve rod to rotate in opposite directions, improving stirring efficiency and uniformity. By setting the external stirring blades to fit against the inner wall of the mixing tank, the external stirring blades scrape and clean the inner wall of the mixing tank while rotating, preventing the slag and soil from adhering to the inner wall of the mixing tank and affecting the stirring efficiency, reducing dead corners in the stirring, and ensuring that the slag and soil and the amendment are fully mixed. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a partial cross-sectional structural diagram of the present invention;

[0016] Figure 3 for Figure 2 Enlarged diagram of A in the middle;

[0017] Figure 4 This is a schematic diagram of the internal structure of the mixing tank in this utility model.

[0018] Reference numerals in the attached diagram: 1. Mixing tank; 2. Tank lid; 3. Mounting bracket; 4. Motor; 5. Rotating rod; 6. Upper gear plate; 7. Gear; 8. Lower gear plate; 9. Internal mixing blade; 10. Sleeve rod; 11. Connecting rod one; 12. External mixing blade; 13. Connecting rod two; 14. Collar ring; 15. L-shaped ring one; 16. Support rod; 17. Support plate; 18. L-shaped ring two; 19. Rectangular block; 20. Rectangular frame; 21. Connecting rod three; 22. T-shaped ring. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example

[0021] like Figures 1 to 4 As shown, the present invention proposes a tunnel boring machine slag mixing device, including a mixing bucket 1. The top outer ring of the mixing bucket 1 is threadedly connected to a bucket cover 2, which facilitates installation and disassembly. A mounting frame 3 is provided on the top surface of the bucket cover 2, and the top surface of the bucket cover 2 is fixedly connected to the bottom surface of the mounting frame 3. A motor 4 is provided on the top surface of the mounting frame 3, and the top surface of the mounting frame 3 is fixedly connected to the bottom surface of the motor 4. The output end of the motor 4 extends through to the inner bottom surface of the mounting frame 3 and is provided with a rotating rod 5. The output end of the motor 4 is rotatably connected to the mounting frame 3. The output end of the motor 4 is fixedly connected to the top of the rotating rod 5. A rectangular block 19 is provided at the bottom of the rotating rod 5, and the bottom end of the rotating rod 5 is fixedly connected to the top surface of the rectangular block 19. A rectangular frame 20 is slidably provided on the outside of the rectangular block 19, which facilitates the sliding installation of the rectangular block 19 into the interior of the rectangular frame 20. Connecting rods 3 21 are provided on both the left and right sides of the rectangular frame 20, and the rectangular frame 20 is fixedly connected to the connecting rods 3 21.

[0022] Two connecting rods 21, on opposite sides, are fitted with the same T-shaped ring 22. The connecting rods 21 and the T-shaped ring 22 are fixedly connected. A T-shaped groove is formed at the bottom of the mixing tank 1, and the T-shaped ring 22 is rotatably connected to it. The T-shaped groove guides and limits the T-shaped ring 22 while simultaneously supporting and fixing it. This, in turn, supports and fixes the connecting rods 21, which in turn supports and fixes the rectangular frame 20, and consequently, the rectangular block 19. To ensure stable operation of the bottom end of the rotating rod 5, an upper gear plate 6 is provided on the outer ring of the top end of the rotating rod 5. The outer ring of the top end of the rotating rod 5 is fixedly connected to the inner ring of the upper gear plate 6. The top surface of the upper gear plate 6 is rotatably connected to the inner top surface of the mounting frame 3, which facilitates auxiliary support for the operation of the upper gear plate 6. An L-shaped ring bar 15 is provided on the top surface of the upper gear plate 6. The top surface of the upper gear plate 6 is fixedly connected to the bottom surface of the L-shaped ring bar 15. An L-shaped ring groove is opened on the inner top surface of the mounting frame 3. The L-shaped ring bar 15 is rotatably connected to the L-shaped ring groove.

[0023] The L-shaped groove can guide and limit the L-shaped ring bar 15, thereby guiding and limiting the running trajectory of the upper gear disk 6, making the operation of the upper gear disk 6 more stable. Two gears 7 are meshed at the bottom of the upper gear disk 6. The rotation of the upper gear disk 6 can drive the gears 7 to rotate. The inner ring of each gear 7 is provided with a support rod 16, and the inner ring of the gear 7 is fixedly connected to the support rod 16. The outer ring of the two support rods 16, which are far apart from each other, is rotatably provided with a support plate 17. The bottom surface of the support plate 17 is fixedly connected to the top surface of the bucket lid 2. The support plate 17 can support and fix the support rod 16, and the support rod 16 can support and fix the gear 7, making the rotation of the gear 7 more stable. The bottom of the two gears 7 is meshed with the same lower gear disk 8. The rotation of the gear 7 can drive the lower gear disk 8 to rotate in the opposite direction to the upper gear disk 6. The bottom surface of the lower gear disk 8 is rotatably connected to the top surface of the bucket lid 2, which facilitates the support and fixation of the operation of the lower gear disk 8.

[0024] The bottom surface of the lower gear disc 8 is provided with an L-shaped ring bar 18, and the bottom surface of the lower gear disc 8 is fixedly connected to the top surface of the L-shaped ring bar 18. The top surface of the barrel cover 2 is provided with an L-shaped annular groove 2, and the L-shaped ring bar 18 is rotatably connected to the L-shaped annular groove 2. The L-shaped annular groove 2 can guide and limit the L-shaped ring bar 18, thereby guiding and limiting the running trajectory of the lower gear disc 8, making the rotation of the lower gear disc 8 more stable. The outer ring of the rotating rod 5 is provided with an internal stirring blade 9, and the outer ring of the rotating rod 5 is connected to the inner ring of the rotating rod 5. The mixing blade 9 is fixedly connected. The bottom surface of the lower gear plate 8 is provided with a sleeve rod 10. The bottom surface of the lower gear plate 8 is fixedly connected with the top of the sleeve rod 10. The inner ring of the sleeve rod 10 is rotatably connected with the outer ring of the rotating rod 5, so that the rotating rod 5 and the sleeve rod 10 can rotate in opposite directions. The outer ring of the sleeve rod 10 is rotatably connected with the bucket cover 2, so that the sleeve rod 10 can rotate. A connecting rod 11 is provided on one side of the bottom end of the sleeve rod 10. The left side of the sleeve rod 10 is fixedly connected with the left end of the connecting rod 11.

[0025] An external stirring blade 12 is provided at the other end of the connecting rod 11. The connecting rod 11 and the external stirring blade 12 are fixedly connected. The mixing tank 1 is arranged in an inverted cone shape, and the external stirring blade 12 is also arranged in an inverted cone shape. The outermost ring of the external stirring blade 12 is in contact with the inner wall of the mixing tank 1, which facilitates the external stirring blade 12 to rotate and stir the slag while scraping and cleaning the inner wall of the mixing tank 1. A connecting rod 2 13 is provided at the bottom end of the external stirring blade 12. The bottom end of the external stirring blade 12 is fixedly connected to the connecting rod 2 13. A collar 14 is provided at the other end of the connecting rod 2 13. The connecting rod 2 13 and the collar 14 are fixedly connected. The inner ring of the collar 14 is rotatably connected to the outer ring of the rotating rod 5. The rotatable connection between the collar 14 and the outer ring of the rotating rod 5 facilitates the support and fixation of the collar 14, thereby supporting and fixing the rotation of the connecting rod 2 13 and the external stirring blade 12, and ensuring the stable operation of the external stirring blade 12.

[0026] In this embodiment, when using this device, the slag and modifier to be mixed are placed inside the mixing tank 1, and then the tank cover 2 is threaded onto the outside of the mixing tank 1. At the same time, the rectangular block 19 is installed inside the rectangular frame 20. Then, the motor 4 is run, and the output end of the motor 4 can drive the rotating rod 5 to rotate. The rotation of the rotating rod 5 can drive the upper gear plate 6 and the internal stirring blade 9 to rotate. The rotation of the upper gear plate 6 can drive the gear 7 to rotate. The rotation of the gear 7 can drive the lower gear plate 8 to rotate in the opposite direction to the upper gear plate 6, thereby driving the sleeve rod 10 to rotate in the opposite direction to the rotating rod 5. This, in turn, drives the connecting rod 11, the external stirring blade 12, the connecting rod 2 13, and the collar 14 to rotate in the opposite direction to the internal stirring blade 9. The opposite rotation of the internal stirring blade 9 and the external stirring blade 12 can make the slag and modifier inside the mixing tank 1 fully and evenly mixed, and at the same time scrape and clean the inner wall of the mixing tank 1 to prevent the slag from adhering to the inner wall of the mixing tank 1 and causing blockage.

[0027] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.

Claims

1. A TBM muck mixing device comprising a mixing drum (1), characterised in that: The top outer ring of the mixing tank (1) is threaded with a tank cover (2). A mounting bracket (3) is provided on the top surface of the tank cover (2). A motor (4) is provided on the top surface of the mounting bracket (3). The output end of the motor (4) extends through to the inner bottom surface of the mounting bracket (3) and is provided with a rotating rod (5). An upper gear plate (6) is provided on the top outer ring of the rotating rod (5). Two gears (7) are meshed at the bottom of the upper gear plate (6). The bottom of the two gears (7) are meshed with the same lower gear plate (8). The outer ring of the rotating rod (5) is provided with an internal stirring blade (9), the bottom surface of the lower gear disc (8) is provided with a sleeve rod (10), one side of the bottom end of the sleeve rod (10) is provided with a connecting rod one (11), the other end of the connecting rod one (11) is provided with an external stirring blade (12), the bottom end of the external stirring blade (12) is provided with a connecting rod two (13), the other end of the connecting rod two (13) is provided with a collar (14), the inner ring of the collar (14) is rotatably connected to the outer ring of the rotating rod (5).

2. The sludge stirring device of a shield tunneling machine according to claim 1, characterized in that, The top surface of the upper gear plate (6) is rotatably connected to the inner top surface of the mounting bracket (3). The top surface of the upper gear plate (6) is provided with an L-shaped ring bar (15), and the inner top surface of the mounting bracket (3) is provided with an L-shaped ring groove. The L-shaped ring bar (15) and the L-shaped ring groove are rotatably connected.

3. The sludge stirring device of a shield tunneling machine according to claim 1, characterized in that, The inner rings of the two gears (7) are provided with support rods (16), and the outer rings of the two support rods (16) that are far apart from each other are rotatably provided with support plates (17). The bottom surface of the support plates (17) is fixedly connected to the top surface of the bucket lid (2).

4. The sludge stirring device of a shield tunneling machine according to claim 1, characterized in that, The bottom surface of the lower gear disc (8) is rotatably connected to the top surface of the barrel lid (2). The bottom surface of the lower gear disc (8) is provided with an L-shaped ring bar (18), and the top surface of the barrel lid (2) is provided with an L-shaped ring groove. The L-shaped ring bar (18) and the L-shaped ring groove are rotatably connected.

5. The shield machine muck mixing device of claim 1, wherein, The inner ring of the sleeve rod (10) is rotatably connected to the outer ring of the rotating rod (5), and the outer ring of the sleeve rod (10) is rotatably connected to the bucket lid (2).

6. The sludge stirring device of a shield tunneling machine according to claim 1, wherein, The mixing tank (1) is arranged in an inverted cone shape, and the outer mixing blade (12) is also arranged in an inverted cone shape. The outermost ring of the outer mixing blade (12) is in contact with the inner wall of the mixing tank (1).

7. The shield machine muck mixing device of claim 1, wherein, A rectangular block (19) is provided at the bottom of the rotating rod (5). A rectangular frame (20) is slidably provided on the outside of the rectangular block (19). Connecting rods (21) are provided on both the left and right sides of the rectangular frame (20). The same T-shaped ring (22) is provided on the side of the two connecting rods (21) that are far apart from each other. A T-shaped ring groove is opened at the bottom of the inside of the mixing tank (1). The T-shaped ring (22) is rotatably connected to the T-shaped ring groove.

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