Spiral deslagging earth pressure TBM (tunnel boring machine) dual-mode shield tunneling machine

Abstract

The invention relates to the technical field of tunnel engineering, in particular to a spiral deslagging earth pressure TBM dual-mode shield tunneling machine which comprises a machine body, the left end of the machine body is rotationally connected with a machine head, the left end of the machine head is provided with multiple sets of annularly-formed strip-shaped grooves, the inner walls of the strip-shaped grooves located on the outermost side are fixedly connected with the same circular ring, and the same circular ring is fixedly connected with the outer wall of the machine head. According to the device, rotation of the motor can be transmitted to the machine head through the rotating rod to drive the machine head to work, and meanwhile, a first belt wheel, a third belt wheel and a belt rotate through transmission of the belt; then a second belt wheel drives a second gear to rotate so that the second gear can be meshed with a first gear to drive a transmission round pipe to rotate, the transmission round pipe transmits the second gear to a gear disc to achieve rotation of the gear disc so as to drive a bevel gear to rotate, then a third belt wheel drives a spiral feeding piece to work, and silt in the machine head is conveyed out of the machine head.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel engineering, and specifically to an earth pressure TBM dual-mode shield machine with spiral slag discharge. Background Art

[0002] It is a tunnel boring equipment that combines the characteristics of TBM (full-face tunnel boring machine) and shield machine, and adopts a dual-mode working method. Its work is mainly achieved by the rotation of the machine head. The motor drives the rotating rod, and the rotating rod transmits the power to the machine head to make the machine head rotate, and uses the cutter head to cut and excavate the rock and soil.

[0003] When the traditional shield machine is in tunneling operation, the problem of tunneling efficiency is relatively prominent. In the face of different geological conditions, due to the lack of a mechanism like that in the new shield machine where the spiral blade is driven by a gear disk to assist tunneling, and the design of using a fixed cylinder to push the machine head to fully contact the mud and stones, the tunneling speed is limited and it is difficult to meet the growing demand for rapid construction. Especially in hard rock formations or soil layers with high viscosity, the cutting resistance of the cutter head is large, and the auxiliary force cannot be effectively used to improve the tunneling efficiency, resulting in slow construction progress. In terms of anti-blocking performance, the defects of the traditional shield machine are obvious. There is no effective cleaning structure inside its machine head, and sediment is extremely easy to accumulate on the inner wall of the machine head, causing blockage and affecting the normal operation of the shield machine. Once the spiral component is blocked by sediment, it will lead to poor slag discharge. In severe cases, it even needs to stop for cleaning, which not only increases the construction cost but also prolongs the construction period. In terms of power transmission, the transmission system of the traditional shield machine is not efficient and stable enough. It is difficult to achieve the coordinated operation of multiple components accurately and efficiently like the new shield machine through a set of ingenious transmission components such as motors, pulleys, and gears. During the power transmission process, there are often large energy losses and the components do not operate synchronously, which not only reduces the overall performance of the shield machine but also affects the continuity and stability of the construction. Therefore, we propose an earth pressure TBM dual-mode shield machine with spiral slag discharge to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an earth pressure TBM dual-mode shield machine with spiral slag discharge to solve the problems raised in the above background art.

[0005] The technical solution of the present invention is: An earth pressure TBM dual-mode shield machine with spiral slag discharge, including a fuselage. The left end of the fuselage is rotatably connected to a machine head. The left end of the machine head is provided with multiple groups of annularly arranged strip-shaped grooves. The inner wall of the strip-shaped groove located on the outermost side is fixedly connected to the same circular ring. The inner wall of each group of strip-shaped grooves is rotatably connected to the same round rod. The inner walls of multiple groups of strip-shaped grooves are all provided with spiral blades. The inner wall of the spiral blade is fixedly connected to the surface of the round rod. The inner wall of the fuselage is provided with a circular groove. The inner wall of the circular groove is fixedly connected to a rotating rod. The inner wall of the circular groove is provided with a gear disc. The inner wall of the gear disc is rotatably connected to the surface of the rotating rod. The inner wall of the circular groove is rotatably connected to multiple groups of annularly arranged bevel gears. The right end of the gear disc is fixedly connected to a transmission circular tube. The inner wall of the fuselage is fixedly connected to three parallel circular fixing plates. An extrusion and feeding device is arranged inside the fuselage. A cleaning mechanism for scraping the inner wall of the machine head to prevent sediment accumulation is arranged inside the machine head. A transmission mechanism is arranged inside the fuselage. A transmission mechanism is arranged inside the fuselage.

[0006] Preferably, the extrusion and feeding device includes multiple hydraulic push rods. The right ends of multiple hydraulic push rods are fixedly connected to the left end of the middle circular fixing plate. The output ends of multiple hydraulic push rods are fixedly connected to the right end of the leftmost circular fixing plate. The left end of the middle circular fixing plate is fixedly connected to a fixed cylinder for supporting the hydraulic push rod. The left end of the leftmost circular fixing plate is fixedly connected to a feeding cylinder for facilitating feeding. The other end of the feeding cylinder penetrates the left end of the rightmost circular fixing plate and extends to the right side. A transmission round rod is arranged inside the feeding cylinder. A spiral feeding blade is fixedly connected to the surface of the transmission round rod.

[0007] Preferably, the cleaning mechanism includes multiple square rods. One end of multiple square rods is fixedly connected to the surface of the transmission circular tube. Two symmetrically arranged struts are fixedly connected to the side walls of multiple square rods. The same wire brush is fixedly connected to the surfaces of two struts. Springs are fixedly connected to the inner walls of multiple square rods. The other end of the spring is fixedly connected to a strip-shaped sliding plate. A strip-shaped movable rod is fixedly connected to the side wall of the strip-shaped sliding plate. A scraper is fixedly connected to the other end of the strip-shaped movable rod.

[0008] Preferably, the transmission mechanism includes a first gear. The inner wall of the first gear is fixedly connected to the surface of the transmission circular tube. A first pulley is fixedly connected to the surface of the rotating rod. A transmission rod is rotatably connected to the right end of the middle circular fixing plate. A second gear is fixedly connected to the other end of the transmission rod. The first gear is meshed with the second gear. A second pulley is fixedly connected to the other end of the second gear. A third pulley is fixedly connected to the right end of the transmission round rod. The same belt is sleeved on the surfaces of the third pulley, the second pulley, and the first pulley.

[0009] Preferably, the conveying mechanism includes a conveyor belt located below the blanking cylinder. Baffles for preventing sediment from falling are provided on both sides of the conveyor belt. An outlet is provided at the left end of the rightmost circular fixing plate.

[0010] Preferably, one end of the round rod is rotatably connected to the surface of the ring. The other end of the ring penetrates the inner wall of the strip-shaped groove and extends into the circular groove. The other end of the ring is fixedly connected to the bevel gear, and the bevel gear is meshed with the gear disk.

[0011] Preferably, a motor is fixedly connected to the left end of the rightmost circular fixing plate, and the output end of the motor is fixedly connected to the right end of the rotating rod.

[0012] Preferably, the second pulley and the third pulley have the same diameter, and the diameters of the second pulley and the third pulley are smaller than the diameter of the first pulley.

[0013] Preferably, the left end of the spiral feeding blade is located inside the machine head, and the cleaning mechanism is located on the left side of the spiral feeding blade.

[0014] The present invention provides an earth pressure TBM dual-mode shield machine with spiral slag discharge through improvement. Compared with the prior art, it has the following improvements and advantages:

[0015] First: In the present invention, the work of the shield machine is realized by the rotation of the machine head. At the same time, through the transmission of the gear disk, multiple bevel gears are rotated, so that the spiral blades are rotated to assist the work of the shield machine. Secondly, through the action of multiple fixed cylinders, the machine head is pushed inward to make the machine head fully contact with the mud and stone, thereby improving the work efficiency.

[0016] Second: In the present invention, the sediment on the inner wall of the machine head is cleaned by the scraper to prevent sediment accumulation from blocking the inside of the machine head. At the same time, through the action of the wire brush, the spiral blades are cleaned to prevent sediment from blocking the spiral blades, thereby affecting the work efficiency. The sediment in the machine head is transported to the conveyor belt and then transported to the outside by the rotation of the spiral feeding blade.

[0017] Third: In the present invention, the rotation of the motor is transmitted to the machine head through the rotating rod to drive the machine head to work. At the same time, the first pulley, the third pulley and the belt rotate through the transmission of the belt. Then, the second pulley drives the second gear to rotate, which meshes with the first gear to drive the transmission pipe to rotate. The transmission pipe is transmitted to the gear disk to realize the rotation of the gear disk, thereby driving the bevel gear to rotate. Then, the spiral feeding blade is driven to work by the third pulley to transport the sediment in the machine head to the outside of the machine head. Description of the Drawings

[0018] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 is a front view structural schematic diagram of the present invention;

[0020] Figure 2 is an internal structural schematic diagram of the present invention;

[0021] Figure 3 is an internal structural schematic diagram of the present invention;

[0022] Figure 4 is an internal structural schematic diagram of the machine head of the present invention;

[0023] Figure 5 is a structural schematic diagram of the spiral blade of the present invention;

[0024] Figure 6 is a sectional structural schematic diagram of the cleaning mechanism of the present invention;

[0025] Figure 7 is Figure 5 an enlarged structural schematic diagram at position A in

[0026] Explanation of reference numerals in the drawings:

[0027] 1, fuselage; 2, machine head; 3, strip groove; 4, circular ring; 5, round rod; 6, spiral blade; 7, circular groove; 8, rotating rod; 9, gear disc; 10, bevel gear; 11, transmission circular tube; 12, circular fixing plate; 13, hydraulic push rod; 14, fixed cylinder; 15, blanking cylinder; 16, transmission round rod;

[0028] 17, spiral feeding blade; 18, square rod; 19, support column; 20, wire brush; 21, spring; 22, strip sliding plate; 23, strip movable rod; 24, scraping plate; 25, first gear; 26, first pulley; 27, transmission rod; 28, second gear; 29, second pulley; 30, third pulley;

[0029] 31, belt; 32, motor; 33, conveyor belt; 34, baffle; 35, discharge port. Detailed implementation manners

[0030] The present invention will be described in detail below. The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0031] The present invention provides an earth pressure TBM dual-mode shield machine with spiral slag discharge through improvement. The technical solution of the present invention is:

[0032] As Figure 1 - Figure 7 shown, an earth pressure TBM dual-mode shield machine with spiral slag discharge includes a fuselage 1. The left end of the fuselage 1 is rotatably connected to a machine head 2. A plurality of annularly arranged strip grooves 3 are opened at the left end of the machine head 2. The inner wall of the outermost strip groove 3 is fixedly connected to the same circular ring 4. The inner wall of each group of strip grooves 3 is rotatably connected to the same round rod 5. The inner walls of the plurality of strip grooves 3 are all provided with spiral blades 6. The inner wall of the spiral blade 6 is fixedly connected to the surface of the round rod 5. A circular groove 7 is opened on the inner wall of the fuselage 1. A rotating rod 8 is fixedly connected to the inner wall of the circular groove 7. A gear disk 9 is arranged on the inner wall of the circular groove 7. The inner wall of the gear disk 9 is rotatably connected to the surface of the rotating rod 8. A plurality of annularly arranged bevel gears 10 are rotatably connected to the inner wall of the circular groove 7. A transmission circular tube 11 is fixedly connected to the right end of the gear disk 9. Three parallel circular fixing plates 12 are fixedly connected to the inner wall of the fuselage 1. An extrusion and feeding device is arranged inside the fuselage 1. A cleaning mechanism for scraping the inner wall of the machine head 2 to prevent sediment accumulation is arranged inside the machine head 2. A transmission mechanism is arranged inside the fuselage 1. A transmission mechanism is arranged inside the fuselage 1.

[0033] Furthermore, the extrusion and feeding device includes a plurality of hydraulic push rods 13. The right ends of the plurality of hydraulic push rods 13 are fixedly connected to the left end of the middle circular fixing plate 12. The output ends of the plurality of hydraulic push rods 13 are fixedly connected to the right end of the leftmost circular fixing plate 12. A fixing cylinder 14 for supporting the hydraulic push rods 13 is fixedly connected to the left end of the middle circular fixing plate 12. A feeding cylinder 15 for facilitating feeding is fixedly connected to the left end of the leftmost circular fixing plate 12. The other end of the feeding cylinder 15 penetrates through the left end of the rightmost circular fixing plate 12 and extends to the right side. A transmission round rod 16 is arranged on the inner wall of the feeding cylinder 15. A spiral feeding blade 17 is fixedly connected to the surface of the transmission round rod 16. By the push of the plurality of hydraulic push rods 13, the left end of the machine head 2 is fully contacted with the sediment, improving the working efficiency.

[0034] Furthermore, the cleaning mechanism includes a plurality of square rods 18. One end of each of the plurality of square rods 18 is fixedly connected to the surface of the transmission circular tube 11. Two symmetrically arranged struts 19 are fixedly connected to the side walls of each of the plurality of square rods 18. The same wire brush 20 is fixedly connected to the surfaces of the two struts 19. Springs 21 are fixedly connected to the inner walls of each of the plurality of square rods 18. The other end of each spring 21 is fixedly connected to a strip-shaped sliding plate 22. A strip-shaped movable rod 23 is fixedly connected to the side wall of the strip-shaped sliding plate 22. The other end of the strip-shaped movable rod 23 is fixedly connected to a scraping plate 24. The square rods 18 are connected to the transmission circular tube 11, enabling the entire cleaning mechanism to move along with the movement of the transmission circular tube 11. The struts 19 are connected to the wire brush 20. During the operation of the device, the wire brush 20 can clean the relevant spiral components. The position of the wire brush 20 is relatively fixed and can continuously contact the spiral components, effectively preventing impurities such as sediment from blocking the spiral components.

[0035] Furthermore, the transmission mechanism includes a first gear 25. The inner wall of the first gear 25 is fixedly connected to the surface of the transmission circular tube 11. A first belt pulley 26 is fixedly connected to the surface of the rotating rod 8. A transmission rod 27 is rotatably connected to the right end of the middle circular fixing plate 12. A second gear 28 is fixedly connected to the other end of the transmission rod 27. The first gear 25 is meshed with the second gear 28. A second belt pulley 29 is fixedly connected to the other end of the second gear 28. A third belt pulley 30 is fixedly connected to the right end of the transmission circular rod 16. The same belt 31 is sleeved on the surfaces of the third belt pulley 30, the second belt pulley 29, and the first belt pulley 26. By connecting the third belt pulley 30, the second belt pulley 29, and the first belt pulley 26 with the belt 31, a transmission chain is formed. This transmission method can achieve efficient power transmission, enabling the power of the motor 32 to be sequentially transmitted from the rotating rod 8 to the first belt pulley 26, the second belt pulley 29, and the third belt pulley 30, thereby driving the rotation of multiple components such as the transmission circular rod 16 and the transmission rod 27.

[0036] Furthermore, the transmission mechanism includes a conveyor belt 33. The conveyor belt 33 is located below the blanking cylinder 15. Baffles 34 for preventing sediment from falling are provided on both sides of the conveyor belt 33. A discharge port 35 is formed at the left end of the rightmost circular fixing plate 12. The conveyor belt 33 is located below the blanking cylinder 15 and can directly receive the sediment discharged from the blanking cylinder 15. As a continuous conveying device, the conveyor belt 33 can efficiently transmit the sediment to the outside of the device, avoiding the accumulation of sediment inside the machine body 1 and ensuring that the sediment can be continuously and stably transported away.

[0037] Further, one end of the round rod 5 is rotatably connected to the surface of the ring 4. The other end of the ring 4 penetrates through the inner wall of the strip-shaped groove 3 and extends into the circular groove 7. The other end of the ring 4 is fixedly connected to the bevel gear 10. The bevel gear 10 is meshed with the gear disk 9. The rotatable connection between the round rod 5 and the ring 4 enables the ring 4 to rotate flexibly relative to the round rod 5. The ring 4 is fixedly connected to the bevel gear 10, and the bevel gear 10 is meshed with the gear disk 9. Such a structural design can effectively transmit the power of the gear disk 9 to the bevel gear 10. Through the meshing transmission between the gears, the conversion of the power direction and speed can be realized, and the power from the gear disk 9 can be transmitted to other relevant components in a suitable manner, and the spiral blade 6 associated with the bevel gear 10 can be driven to rotate to realize the function of assisting work.

[0038] Further, the left end of the rightmost circular fixing plate 12 is fixedly connected with a motor 32. The output end of the motor 32 is fixedly connected with the right end of the rotating rod 8. The output end of the motor 32 is fixedly connected with the right end of the rotating rod 8, providing an efficient starting point for subsequent power transmission.

[0039] Further, the second pulley 29 and the third pulley 30 have the same diameter, and the diameters of the second pulley 29 and the third pulley 30 are smaller than the diameter of the first pulley 26. The rotation of the second pulley 29 drives the second pulley 29 and the third pulley 30 to rotate.

[0040] Further, the left end of the spiral feeding piece 17 is located inside the machine head 2, and the cleaning mechanism is located on the left side of the spiral feeding piece 17, avoiding the cleaning mechanism touching the spiral feeding piece 17 during the operation of the equipment and causing damage to the equipment.

[0041] Working principle: First, start the motor 32. At this time, the motor 32 drives the machine head 2 to rotate through the rotation of the rotating rod 8. At the same time, the first pulley 26 on the rotating rod 8 drives the second pulley 29 and the third pulley 30 to rotate through the belt 31. The second pulley 29 drives the second gear 28 to rotate and meshes with the first gear 25 to rotate. At this time, the rotation of the transmission round tube 11 not only drives the bevel gear 10 to rotate through the gear disk 9, and drives the spiral blade 6 to rotate through the transmission of the round rod 5, playing an auxiliary role in the work of the machine head 2 and improving the work efficiency. Then, the transmission round tube 11 drives a plurality of square rods 18 to work, so that the scraper 24 cleans the inner wall of the machine head 2, and at the same time cleans the surface of the spiral blade 6 through the action of the wire brush 20 to prevent the spiral blade 6 from being blocked due to long-term contact with sediment. Secondly, when the third pulley 30 rotates, it drives the spiral feeding piece 17 to work, so that the sediment in the machine head 2 is discharged onto the conveyor belt 33 through the action of the spiral feeding piece 17.

[0042] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double-mode shield machine with spiral slag discharge, comprising a machine body (1), characterized in that: The left end of the machine body (1) is rotatably connected to the machine head (2), and the left end of the machine head (2) is provided with a plurality of groups of annular strip grooves (3), the inner wall of the outermost strip groove (3) is fixedly connected to the same circular ring (4), the inner wall of each group of the strip grooves (3) is rotatably connected to the same round rod (5), the inner walls of the plurality of groups of the strip grooves (3) are all provided with spiral blades (6), the inner wall of the spiral blades (6) is fixedly connected to the surface of the round rod (5), the inner wall of the machine body (1) is provided with a circular groove (7), the inner wall of the circular groove (7) is fixedly connected to a rotating rod (8), and the inner wall of the circular groove (7) is provided with a A gear plate (9) is arranged, the inner wall of the gear plate (9) is rotatably connected to the surface of the rotating rod (8), the inner wall of the circular groove (7) is rotatably connected to a plurality of groups of bevel gears (10) arranged in an annular manner, the right end of the gear plate (9) is fixedly connected to a transmission circular tube (11), the inner wall of the machine body (1) is fixedly connected to three parallel circular fixing plates (12), an extrusion and unloading device is arranged in the machine body (1), a cleaning mechanism for scraping the inner wall of the machine head (2) to prevent sediment accumulation is arranged inside the machine head (2), a transmission mechanism is arranged in the machine body (1), and a transmission mechanism is arranged in the machine body (1).

2. The spiral slag discharge earth pressure TBM dual-mode shield machine according to claim 1, characterized in that: The extrusion and unloading device comprises a plurality of hydraulic push rods (13), the right ends of the plurality of hydraulic push rods (13) are fixedly connected to the left end of the circular fixed plate (12) located in the middle, the output ends of the plurality of hydraulic push rods (13) are fixedly connected to the right end of the circular fixed plate (12) located on the far left, the left end of the circular fixed plate (12) located in the middle is fixedly connected to a fixed cylinder (14) used for supporting the hydraulic push rods (13), the left end of the circular fixed plate (12) located on the far left is fixedly connected to a unloading cylinder (15) for facilitating unloading, the other end of the unloading cylinder (15) passes through the left end of the rightmost circular fixed plate (12) and extends to the right, the inner wall of the unloading cylinder (15) is provided with a transmission round rod (16), and the surface of the transmission round rod (16) is fixedly connected to a spiral feeding sheet (17).

3. The spiral slag discharge earth pressure TBM dual-mode shield machine according to claim 1, characterized in that: The cleaning mechanism comprises a plurality of square rods (18), one end of each of the square rods (18) is fixedly connected to the surface of a transmission circular tube (11), the side walls of each of the square rods (18) are fixedly connected to two symmetrically arranged pillars (19), the surfaces of the two pillars (19) are fixedly connected to the same wire brush (20), the inner walls of each of the square rods (18) are fixedly connected to a spring (21), the other end of each of the springs (21) is fixedly connected to a strip sliding plate (22), the side wall of each of the strip sliding plates (22) is fixedly connected to a strip movable rod (23), and the other end of each of the strip movable rods (23) is fixedly connected to a scraper (24).

4. The spiral slag discharge earth pressure TBM dual-mode shield machine according to claim 2, characterized in that: The transmission mechanism comprises a first gear (25), the inner wall of the first gear (25) is fixedly connected to the surface of the transmission circular tube (11), the surface of the rotating rod (8) is fixedly connected to a first pulley (26), the right end of the circular fixed plate (12) located in the middle is rotatably connected to a transmission rod (27), the other end of the transmission rod (27) is fixedly connected to a second gear (28), the first gear (25) is meshedly connected to the second gear (28), the other end of the second gear (28) is fixedly connected to a second pulley (29), the right end of the transmission circular rod (16) is fixedly connected to a third pulley (30), and the surfaces of the third pulley (30), the second pulley (29) and the first pulley (26) are sleeved with the same belt (31).

5. The spiral slag discharge earth pressure TBM dual-mode shield machine according to claim 1, characterized in that: The transmission mechanism comprises a conveyor belt (33), the conveyor belt (33) is located below the unloading cylinder (15), baffles (34) are arranged on both sides of the conveyor belt (33) to prevent mud and sand from falling, and a discharge port (35) is opened at the left end of the rightmost circular fixed plate (12).

6. The spiral slag discharge earth pressure TBM dual-mode shield machine according to claim 1, characterized in that: One end of the round rod (5) is rotatably connected to the surface of the circular ring (4), the other end of the circular ring (4) penetrates the inner wall of the strip groove (3) and extends into the circular groove (7), the other end of the circular ring (4) is fixedly connected to the bevel gear (10), and the bevel gear (10) is meshingly connected to the gear plate (9).

7. The spiral slag-discharging earth pressure TBM dual-mode shield machine according to claim 1, characterized in that: The left end of the circular fixed plate (12) located at the far right is fixedly connected to a motor (32), and the output end of the motor (32) is fixedly connected to the right end of the rotating rod (8).

8. The spiral slag-discharging earth pressure TBM dual-mode shield machine according to claim 4, characterized in that: The diameters of the second belt pulley (29) and the third belt pulley (30) are the same, and the diameters of the second belt pulley (29) and the third belt pulley (30) are smaller than the diameter of the first belt pulley (26).

9. The spiral slag discharge earth pressure TBM dual-mode shield machine according to claim 2, characterized in that: The left end of the spiral feeding piece (17) is located in the machine head (2), and the cleaning mechanism is located on the left side of the spiral feeding piece (17).

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