A water removal device for a vacuum suction cup of a tunneling machine

Abstract

The application discloses a kind of for shield machine vacuum chuck water removal device, it is related to water removal device technical field.The application discloses a kind of for shield machine vacuum chuck water removal device, including shell, the shell is divided into upper and lower intercommunication water removal cavity b and water collection cavity c, the condenser body is fixed in the shell and corresponding water removal cavity b, the drain pipe is equipped at the bottom of the shell, electromagnetic valve is equipped on the drain pipe, the top of the shell is equipped with symmetric air inlet pipe and air outlet pipe along width direction, the air inlet pipe and the air outlet pipe are connected with the shell by swivel joint, water vapor enters into the condenser body by the air inlet pipe, liquid and gas restored by condenser body are discharged to water collection cavity c by discharge pipe, gas flows from water collection cavity c to water removal cavity b and then flows out from air outlet pipe.The application can be better used with vacuum chuck and vacuum pump, to avoid the emulsification phenomenon of lubricating oil of vacuum pump.

Description

Technical Field

[0001] This invention relates to the field of dewatering devices, specifically a dewatering device for a tunnel boring machine's vacuum suction cup. Background Technology

[0002] Tunnel boring machines (TBMs) are widely used in the construction of urban subway tunnels. During operation, the TBM cutterhead scrapes and breaks up the soil in front of it by cutting rollers. The TBM then pushes the rear ring segments to propel itself forward. A screw conveyor discharges the excavated soil from the soil chamber, while a segment assembly machine assembles and supports the segments, thus enabling the TBM to excavate.

[0003] Traditional tunnel boring machines (TBMs) use mechanical grippers or vacuum suction cups to grab and install tunnel segments. The working principle of a vacuum suction cup is that after the suction cup contacts the segment, the entire seal on the suction cup is compressed, creating a temporary sealed space between the inner side of the seal and the segment. The vacuum system then operates, drawing air from the pressure-holding chamber, making the pressure inside the chamber significantly lower than the external atmospheric pressure. The external atmospheric pressure then presses the segment against the suction cup surface, and the resulting suction force is sufficient to overcome the segment's own weight and construction vibrations, thus achieving a firm grip on the segment.

[0004] Because the environment inside the tunnel is humid, and mud and impurities tend to accumulate on the surface after the assembled segments are transported to the designated location, the surface of the segments is washed before assembly to ensure the safety of the suction cups gripping the segments and the quality of the segments after assembly. This results in residual water on the surface of the segments.

[0005] A vacuum environment affects the natural state of water. Under vacuum, water evaporates into gas, known as water vapor (or humid air). When the assembly machine's suction cup grips the tube segment and evacuates it, residual water vapor on the segment's surface enters the vacuum system piping along with the air. After entering the pump chamber, the water vapor is compressed and reverts back to water. During vacuum pump operation, water vapor and oil molecules physically mix under the combined effects of mechanical agitation and temperature changes, forming an emulsion. This leads to lubricant emulsification, which has the following harmful effects: significantly reduced lubrication performance, deterioration of vacuum levels, equipment corrosion and shortened lifespan, impaired system stability, and a substantial increase in maintenance costs.

[0006] Because the segments need to be assembled into a pipe, both the vacuum suction cup and the vacuum pump need to rotate, making it inconvenient for the existing dewatering device to be used in conjunction with the vacuum suction cup and the vacuum pump. Summary of the Invention

[0007] The purpose of this invention is to provide a dewatering device for a vacuum suction cup of a tunnel boring machine, so as to solve the problems mentioned in the prior art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a water removal device for a vacuum suction cup of a tunnel boring machine, comprising a housing, wherein the housing is divided into a water removal chamber b and a water collection chamber c that are connected vertically, a condenser body is fixedly installed in the housing and at the corresponding water removal chamber b, a drain pipe is provided at the bottom of the housing, and a solenoid valve is provided on the drain pipe, and a symmetrical air inlet pipe and an air outlet pipe are provided at the top of the housing along the width direction, the housing is suspended in the air through the air inlet pipe and the air outlet pipe, the air inlet pipe is connected to the suction cup through a rotary joint one, and the air outlet pipe is connected to a vacuum pump through a rotary joint two, water vapor enters the condenser body through the air inlet pipe, the reduced liquid and gas are discharged to the water collection chamber c through the discharge pipe of the condenser body, and the gas flows upward from the water collection chamber c to the water removal chamber b and then flows out from the air outlet pipe;

[0009] The air inlet pipe, the air outlet pipe, and the drain pipe are in the same plane.

[0010] Furthermore, the housing is provided with a partition, the partition has a through hole, the partition divides the housing into an upper and lower water removal chamber b and a water collection chamber, and the through hole connects the water removal chamber b and the water collection chamber c.

[0011] Furthermore, the housing is provided with an upper opening a for installing the water removal cylinder. The water removal cylinder, which passes through the upper opening a and the through hole in sequence, is inserted into the water removal chamber b. The lower opening of the water removal cylinder is connected to the water collection chamber. The side wall of the water removal cylinder is provided with a splicing hole. When the splicing hole is spliced ​​with the air outlet pipe, the two are connected. The water removal cylinder is provided with an upper and lower water removal mechanism one and a lower water removal mechanism two. The upper and lower openings of the water removal cylinder are respectively provided. The upper opening is threaded with a sealing cap. The lower opening is connected to the water collection chamber c.

[0012] Furthermore, the first water removal mechanism controls the second water removal mechanism to rotate. The first water removal mechanism includes a rotating shaft and two symmetrical arc-shaped trays. One of the arc-shaped trays is fixedly connected to the rotating shaft through a connecting seat, and the other arc-shaped tray is rotatably connected to the rotating shaft through a connecting seat. The arc-shaped trays are provided with a collection groove and a water squeezing net at the top and bottom. A water-absorbing component is placed in the collection groove.

[0013] The edge of the arc-shaped tray has several sliding holes along the height direction. A connecting rod is slidably installed in the sliding holes. The bottom of the connecting rod is connected to the sliding hole by a spring. It also includes a squeezing block for squeezing the water-absorbing component into the collection slot. The top of the connecting rod extends to the top of the arc-shaped tray and is fixedly connected to the squeezing block.

[0014] Furthermore, a power mechanism is provided on the housing and at the corresponding location of the rotating shaft. When the power mechanism is connected to the rotating shaft and the connecting seat, it drives the rotating shaft and the connecting seat to rotate in opposite directions.

[0015] Furthermore, the power mechanism includes a support block, a support frame, a first spur gear, a second spur gear, and a belt. The housing is provided with a support block, and the support block is provided with an axially movable support frame. The support frame is provided with a second rotating shaft, a third rotating shaft, and a motor. The support block moves along the central axis of the second rotating shaft. A sleeve is rotatably fitted on the second rotating shaft. The second rotating shaft is connected to the third rotating shaft via a belt. A first spur gear is provided at a corresponding position on the third rotating shaft, and a second spur gear is provided at a corresponding position on the sleeve. The first spur gear and the second spur gear mesh with each other. The end of the output shaft of the motor is fixedly connected to the second rotating shaft.

[0016] The end face of the second rotating shaft is provided with a first insertion block along the central axis, the end face of the sleeve is provided with a second insertion block along the central axis, the end face of the first rotating shaft is provided with a first insertion hole, the end face of the second connecting seat is provided with a second insertion hole, when the first insertion block is inserted into the first insertion hole and the second insertion block is inserted into the second insertion hole, the second rotating shaft drives the first rotating shaft to rotate, the sleeve drives the second connecting seat to rotate, and adjustment holes are provided on the housing and at corresponding locations on the second rotating shaft.

[0017] Furthermore, the second dewatering mechanism includes a dewatering ball, a rotating shaft four, and a driven plate. The dewatering ball is provided inside the dewatering cylinder and above the first dewatering mechanism. The rotating shaft four is fixedly inserted through one diameter of the dewatering ball. The dewatering ball has a chamber for filling with adsorbed carbon. A ring of power grooves is opened on the dewatering ball. The power grooves are perpendicular to the rotating shaft four. Several driven plates are arranged in a circumferential array at equal intervals in the power grooves. An active plate is fixed on one of the arc-shaped trays. When the arc-shaped tray is flipped, it drives the active plate to touch the driven plate and push the driven plate, causing the dewatering ball to rotate.

[0018] Furthermore, the dewatering cylinder is equipped with a deformable elastic baffle to block the power channel along its horizontal cross-section, ensuring that gas passes through the dewatering ball.

[0019] Furthermore, the side wall of the water-removing ball is provided with a door for replacing the adsorbent carbon.

[0020] Furthermore, the absorbent element is an absorbent sponge.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] This invention ensures that the drain pipe always faces downwards, guaranteeing that the condenser's discharge pipe always faces downwards, allowing for the smooth collection of liquid water. This enables the device to work better with vacuum suction cups and vacuum pumps. The second water removal mechanism drives the first water removal mechanism to rotate intermittently, saving energy. The water suction element and adsorbent carbon sequentially remove water from gases with different moisture contents, improving the water removal effect. Furthermore, the invention automatically drains the water suction element and flips the water removal balls containing adsorbent carbon, ensuring that the water removal operation is always at its best and preventing lubricant emulsification in the vacuum pump. Attached Figure Description

[0023] Figure 1 This is a front sectional view of the present invention;

[0024] Figure 2 This is a perspective view of the arc-shaped tray in this invention;

[0025] Figure 3 This is a cross-sectional view of the extrusion block in this invention;

[0026] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0027] Figure 5 This is a cross-sectional view of the interior of the present invention;

[0028] Figure 6 for Figure 5 A magnified view of a section at point B.

[0029] In the diagram: 1. Shell; 2. Condenser body; 3. Drain pipe; 4. Inlet pipe; 5. Outlet pipe; 6. Discharge pipe; 7. Baffle plate; 8. Through hole; 9. Water removal cylinder; 10. Splicing hole; 11. Sealing cover; 12. Arc-shaped tray; 13. Rotating shaft one; 14. Connecting seat one; 15. Connecting seat two; 16. Storage groove; 17. Water squeezing screen; 18. Water suction component; 19. Sliding hole; 20. Connecting rod; 21. Spring; 22. Extrusion block; 23. Support block; 24. Support frame; 25. Motor; 26. Rotating shaft two; 27. Rotating shaft three; 28. Sleeve; 29. ​​Circular gear one; 30. Circular gear two; 31. Insertion hole one; 32. Insertion hole two; 33. Insertion block one; 34. Insertion block two; 35. Adjustment hole; 36. Water removal ball; 37. Rotating shaft four; 38. Driven plate; 39. Power groove; 40. Active plate; 41. Elastic baffle. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] like Figures 1-6 As shown, the present invention provides a water removal device for a vacuum suction cup of a tunnel boring machine, including a housing 1. The housing 1 is divided into a water removal chamber b and a water collection chamber c that are connected vertically. A condenser body 2 is fixedly installed in the housing 1 and at the corresponding water removal chamber b. A drain pipe 3 is provided at the bottom of the housing 1. A solenoid valve is provided on the drain pipe 3. A symmetrical air inlet pipe 4 and an air outlet pipe 5 are provided at the top of the housing 1 along the width direction. The housing 1 is suspended in the air by the air inlet pipe 4 and the air outlet pipe 5. The air inlet pipe 4 is connected to the suction cup through a rotary joint one. The air outlet pipe 5 is connected to a vacuum pump through a rotary joint two. Water vapor enters the condenser body 2 through the air inlet pipe 4. The reduced liquid and gas are discharged to the water collection chamber c through the discharge pipe 6 of the condenser body 2. The gas flows upward from the water collection chamber c to the water removal chamber b and then flows out from the air outlet pipe 5.

[0032] The air inlet pipe 4, the air outlet pipe 5, and the drain pipe 3 are in the same plane.

[0033] The housing 1 is provided with a partition 7, and the partition 7 is provided with a through hole 8. The partition 7 divides the housing 1 into an upper and lower water removal chamber b and a water collection chamber c. The through hole 8 connects the water removal chamber b and the water collection chamber c.

[0034] The housing 1 has an upper opening a for installing the water removal cylinder 9. The water removal cylinder 9 is inserted into the water removal chamber b, passing through the upper opening a and the through hole 8 in sequence. The lower opening of the water removal cylinder 9 is connected to the water collection chamber. The side wall of the water removal cylinder 9 is provided with a splicing hole 10. When the splicing hole 10 is spliced ​​with the air outlet pipe 5, the two are connected. The water removal cylinder 9 is provided with a first water removal mechanism and a second water removal mechanism, which are located at the top and bottom. The water removal cylinder 9 is provided with an upper opening and a lower opening, respectively. The upper opening is threaded with a sealing cap 11, and the lower opening is connected to the water collection chamber c.

[0035] The first water removal mechanism controls the rotation of the second water removal mechanism. The first water removal mechanism includes a rotating shaft 13 and two symmetrical arc-shaped trays 12. One of the arc-shaped trays 12 is fixedly connected to the rotating shaft 13 via a connecting seat 14, and the other arc-shaped tray 12 is rotatably connected to the rotating shaft 13 via a connecting seat 2 15. The arc-shaped tray 12 is provided with a collection groove 16 and a water squeezing net 17 at the top and bottom. A water-absorbing component 18 is placed in the collection groove 16.

[0036] The edge of the arc-shaped tray 12 is provided with a plurality of sliding holes 19 along the height direction. A connecting rod 20 is slidably disposed in the sliding holes 19. The bottom of the connecting rod 20 is connected to the sliding hole 19 by a spring 21. It also includes a squeezing block 22 for entering the storage groove 16 to squeeze the water-absorbing component 18. The top of the connecting rod 20 extends to the top of the arc-shaped tray 12 and is fixedly connected to the squeezing block 22.

[0037] A power mechanism is provided on the housing 1 and at the corresponding position of the rotating shaft 13. When the power mechanism is connected to the rotating shaft 13 and the connecting seat 15, it drives the rotating shaft 13 and the connecting seat 15 to rotate in opposite directions.

[0038] The power mechanism includes a support block 23, a support frame 24, a first spur gear 29, a second spur gear 30, and a belt. The housing 1 is provided with a support block 23, and the support block 23 is provided with an axially movable support frame 24. The support frame 24 is provided with a second rotating shaft 26, a third rotating shaft 27, and a motor 25. The support block 23 moves along the central axis of the second rotating shaft 26. A sleeve 28 is rotatably fitted on the second rotating shaft 26. The second rotating shaft 26 is connected to the third rotating shaft 27 via a belt. A first spur gear 29 is provided at a corresponding position on the third rotating shaft 27, and a second spur gear 30 is provided at a corresponding position on the sleeve 28. The first spur gear 29 and the second spur gear 30 mesh with each other. The end of the output shaft of the motor 25 is fixedly connected to the second rotating shaft 26. Pulleys are installed on the outer walls of both the second rotating shaft 26 and the sleeve 28. The belt is wound around the two pulleys, so that the second rotating shaft 26 and the sleeve 28 rotate simultaneously. The support block 23 is equipped with a cylinder, which drives the support frame 24 to move horizontally. This is existing technology.

[0039] The end face of the second rotating shaft 26 is provided with a first insertion block 33 along the central axis direction, the end face of the sleeve 28 is provided with a second insertion block 34 along the central axis direction, the end face of the first rotating shaft 13 is provided with a first insertion hole 31, and the end face of the second connecting seat 15 is provided with a second insertion hole 32. When the first insertion block 33 is inserted into the first insertion hole 31 and the second insertion block 34 is inserted into the second insertion hole 32, the second rotating shaft 26 drives the first rotating shaft 13 to rotate, and the sleeve 28 drives the second connecting seat 15 to rotate. Adjustment holes 35 are provided on the housing 1 and at corresponding positions of the second rotating shaft 26.

[0040] The second dewatering mechanism includes a dewatering ball 36, a rotating shaft 37, and a driven plate 38. The dewatering ball 36 is provided inside the dewatering cylinder 9 and above the first dewatering mechanism. The rotating shaft 37 is fixedly passed through one diameter of the dewatering ball 36. The dewatering ball 36 has a chamber for filling with adsorbed carbon. A ring of power grooves 39 is opened on the dewatering ball 36. The power grooves 39 are perpendicular to the rotating shaft 37. Several driven plates 38 are arranged in a circumferential array at equal intervals in the power grooves 39. An active plate 40 is fixed on one of the arc-shaped trays 12. When the arc-shaped tray 12 is flipped, it drives the active plate 40 to touch the driven plate 38 and push the driven plate 38, causing the dewatering ball 36 to rotate.

[0041] Furthermore, the dewatering cylinder 9 is equipped with a deformable elastic baffle 41, which is used to block the power channel 39 along its horizontal cross-section to ensure that the gas passes through the dewatering ball 36. When the dewatering ball 36 rotates, if no driven plate 38 can block the horizontal cross-section of the power channel 39, the elastic baffle 41 will always block the horizontal cross-section of the power channel 39. When the driven plate 38 passes through the elastic baffle 41, it will push the elastic baffle 41, causing the elastic baffle 41 to deform. After the driven plate 38 has completely passed through, the elastic force of the elastic baffle 41 will cause it to return to its original position.

[0042] Furthermore, the side wall of the water-removing ball 36 is provided with a door for replacing the adsorbent carbon. This is existing technology and is relatively simple, so it is not shown in the figure.

[0043] Furthermore, the absorbent element 18 is an absorbent sponge.

[0044] In specific implementation, Example 1: The inlet pipe 4 is connected to the suction cup, and the outlet pipe 5 is connected to the inlet of the vacuum pump. After the vacuum pump is started, humid air enters the condenser body 2 from the inlet pipe 4. The reduced liquid water and the gas after initial separation are discharged from the outlet pipe 6 to the water collection chamber c. The gas flows upward from the water collection chamber c to the water removal chamber b and then flows out from the outlet pipe 5. The vacuum pump stops, and the water collection chamber c returns to normal pressure. The solenoid valve is opened, and the liquid water is discharged from the drain pipe 3. During the rotation of the segment assembly machine, because both the inlet pipe 4 and the outlet pipe 5 are connected to the housing 1 through a rotary joint, and both the inlet pipe 4 and the outlet pipe 5 are located at the top of the housing 1, the connection between the housing 1 and the inlet pipe 4, and between the housing 1 and the outlet pipe 5 will rotate under the influence of gravity distribution inside and outside the housing 1. This ensures that the drain pipe 3 always faces downward, ensuring that the outlet pipe 6 of the condenser body 2 always faces downward, and that the liquid water can be collected smoothly. This allows the device to be better used in conjunction with the vacuum suction cup and the vacuum pump.

[0045] Example 2: Unlike Example 1, the shell 1 and the outside of the condenser body 2 are provided with an upper opening a; the water removal cylinder 9 is inserted through the upper opening a and the through hole 8 in sequence, and the two joints are provided with sealing rings. The positions of slot 1 and slot 2 can be observed and adjusted through the adjustment hole 35 so that the first insertion block 33 is aligned with slot 1 and the second insertion block 34 is aligned with slot 2.

[0046] When the vacuum pump starts, as the gas flows upward from the water collection chamber c to the water removal chamber b, it first passes through the first water suction mechanism, then the second water suction mechanism, and finally flows out from the outlet pipe 5. When the gas passes through the sponge, some water remains in the sponge; when the gas passes through the adsorbed carbon, some water remains in the adsorbed carbon. Thus, the gas undergoes multiple water absorption processes, further reducing its water content and improving the water removal efficiency. This three-stage water removal treatment of the humid air enhances the efficiency, thereby reducing the water content of the gas entering the vacuum pump and ensuring its smooth operation.

[0047] After the vacuum pump stops, the support frame 24 moves along the width of the support block 23, thereby driving the rotating shaft 26 and the sleeve to pass through the adjusting hole 35. Then, the insert block 33 is inserted into the insertion hole 31, and the insert block 24 is inserted into the insertion hole 32. The motor 25 starts, driving the rotating shaft 26 and the belt to rotate. The belt drives the rotating shaft 37 to rotate. The first gear (29) on the rotating shaft 327 meshes with the second gear (30) on the sleeve, driving the rotating shaft 26 to rotate. The rotating shaft 26 drives the insert block 33, the slot 1, the rotating shaft 13 and the connecting seat 14 to rotate in the forward direction. Rotation causes the sleeve to rotate in the opposite direction, driving the insert block 34, slot 2, and connecting seat 15. Connecting seat 14 and connecting seat 2 15 simultaneously rotate the two arc-shaped trays 12 on both sides inwards. During this process: 1. After the pressing blocks 22 on both sides contact, a portion of the pressing block 22 begins to enter the storage groove 16, squeezing the sponge in the storage groove 16. The pressing block 22 drives the connecting rod 20 to move downwards along the sliding hole 19, and the spring 21 is in a stretched state until both pressing blocks 22 on both sides have entered the storage groove 16, completing the squeezing of the sponge; 2. Figure 1 In the middle, when the arc-shaped tray 12 on the right side rotates to the left, it drives the active block to rotate. After the active block comes into contact with one of the driven blocks, it moves the driven block, thereby pushing the water removal ball 36 to rotate around the rotating shaft 37, thereby driving the water removal ball 36 to rotate a certain distance. The amount of adsorbent carbon filled in the water removal ball 36 is not less than two-thirds of the capacity of the water removal ball 36.

[0048] The output shaft of motor 25 rotates in the opposite direction, which in turn drives the arc-shaped trays 12 on both sides to open and reset outwards at the same time. The arc-shaped tray 12 on the right side drives the active block to rotate in the opposite direction and reset.

[0049] After multiple vacuum pump starts and stops, that is, after motor 25 rotates forward and backward multiple times, the water removal ball 36 rotates significantly, so that the upper hemisphere of the water removal ball 36 rotates to become the lower hemisphere and the lower hemisphere rotates to become the upper hemisphere. This allows the water removal ball 36 to contact the gas coming from below evenly, improving the utilization rate and uniformity of the adsorbed carbon inside the water removal ball 36.

[0050] It should be noted that if the embodiments of the invention involve directional indicators such as up and down, the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the figure. If the specific posture changes, the directional indicators will also change accordingly.

[0051] Furthermore, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B. Additionally, if the embodiments of the invention involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" can explicitly or implicitly include at least one of those features. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the invention.

Claims

1. A dewatering device for a vacuum suction cup of a tunnel boring machine, characterized in that: The device includes a housing, which is divided into a water removal chamber b and a water collection chamber c that are connected vertically. A condenser body is fixedly installed inside the housing and at the corresponding water removal chamber b. A drain pipe is provided at the bottom of the housing, and a solenoid valve is installed on the drain pipe. A symmetrical air inlet pipe and air outlet pipe are provided at the top of the housing along the width direction. The housing is suspended in the air by the air inlet pipe and the air outlet pipe. The air inlet pipe is connected to a suction cup through a rotary joint one, and the air outlet pipe is connected to a vacuum pump through a rotary joint two. Water vapor enters the condenser body through the air inlet pipe. The reduced liquid and gas are discharged to the water collection chamber c through the discharge pipe of the condenser body. The gas flows upward from the water collection chamber c to the water removal chamber b and then flows out from the air outlet pipe. The air inlet pipe, the air outlet pipe, and the drain pipe are in the same plane; The housing is provided with a partition, and the partition is provided with a through hole. The partition divides the housing into an upper and lower water removal chamber b and a water collection chamber, and the through hole connects the water removal chamber b and the water collection chamber c. The housing has an upper opening a for installing a water removal cylinder. A water removal cylinder is inserted into the water removal chamber b, passing through the upper opening a and the through hole in sequence. The lower opening of the water removal cylinder is connected to the water collection chamber. The side wall of the water removal cylinder has a splicing hole, which is connected to the air outlet pipe when spliced. The water removal cylinder has an upper and lower water removal mechanism one and a water removal mechanism two inside. The upper and lower openings of the water removal cylinder are respectively provided. A sealing cap is threaded to the upper opening, and the lower opening is connected to the water collection chamber c. The first water removal mechanism controls the second water removal mechanism to rotate. The first water removal mechanism includes a rotating shaft and two symmetrical arc-shaped trays. One of the arc-shaped trays is fixedly connected to the rotating shaft through a connecting seat, and the other arc-shaped tray is rotatably connected to the rotating shaft through a connecting seat. The arc-shaped trays are provided with a collection groove and a water squeezing net at the top and bottom. A water-absorbing component is placed in the collection groove. The edge of the arc-shaped tray is provided with several sliding holes along the height direction. A connecting rod is slidably arranged in the sliding holes. The bottom of the connecting rod is connected to the sliding hole by a spring. It also includes a squeezing block for squeezing the water-absorbing component into the storage tank. The top of the connecting rod extends to the top of the arc-shaped tray and is fixedly connected to the squeezing block. A power mechanism is provided on the housing and at the corresponding position of the rotating shaft. When the power mechanism is connected to the rotating shaft and the connecting seat, it drives the rotating shaft and the connecting seat to rotate in opposite directions. The second dewatering mechanism includes a dewatering ball, a rotating shaft, and a driven plate. The dewatering ball is located inside the dewatering cylinder and above the first dewatering mechanism. The rotating shaft is fixedly inserted through one diameter of the dewatering ball. The dewatering ball has a chamber for filling with adsorbed carbon. A ring of power grooves is formed on the dewatering ball. The power grooves are perpendicular to the rotating shaft. Several driven plates are arranged in a circumferential array at equal intervals in the power grooves. An active plate is fixed on one of the arc-shaped trays. When the arc-shaped tray is flipped, it causes the active plate to touch the driven plate and push the driven plate, causing the dewatering ball to rotate.

2. The dewatering device for a tunnel boring machine vacuum suction cup according to claim 1, characterized in that: The power mechanism includes a support block, a support frame, a first spur gear, a second spur gear, and a belt. The housing is provided with a support block, and the support block is provided with an axially movable support frame. The support frame is provided with a second rotating shaft, a third rotating shaft, and a motor. The support block moves along the central axis of the second rotating shaft. A sleeve is rotatably fitted on the second rotating shaft. The second rotating shaft is connected to the third rotating shaft via a belt. A first spur gear is provided at a corresponding position on the third rotating shaft, and a second spur gear is provided at a corresponding position on the sleeve. The first spur gear and the second spur gear mesh with each other. The end of the output shaft of the motor is fixedly connected to the second rotating shaft. The end face of the second rotating shaft is provided with a first insertion block along the central axis, the end face of the sleeve is provided with a second insertion block along the central axis, the end face of the first rotating shaft is provided with a first insertion hole, the end face of the second connecting seat is provided with a second insertion hole, when the first insertion block is inserted into the first insertion hole and the second insertion block is inserted into the second insertion hole, the second rotating shaft drives the first rotating shaft to rotate, the sleeve drives the second connecting seat to rotate, and adjustment holes are provided on the housing and at corresponding locations on the second rotating shaft.

3. The dewatering device for a tunnel boring machine vacuum suction cup according to claim 2, characterized in that: The dewatering cylinder is equipped with a deformable elastic baffle, which is used to block the power channel along the horizontal cross section of the power channel to ensure that the gas passes through the dewatering ball.

4. A dewatering device for a vacuum suction cup of a tunnel boring machine according to claim 3, characterized in that: The side wall of the water removal ball is equipped with a door for replacing the adsorbent carbon.

5. The dewatering device for a tunnel boring machine vacuum suction cup according to any one of claims 1-4, characterized in that: The absorbent component is an absorbent sponge.

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