A high-pressure water flow beam flushing device and system inside a shield machine cutter drum

Abstract

The application relates to a tunneling technology field, in particular to a shield machine cutter drum internal high-pressure water flow beam flushing device and system, which comprises a shield machine cutter drum; a high-pressure water flow beam assembly arranged on the inner wall of the shield machine cutter drum, comprising a connecting base and a connecting nozzle arranged on the outer wall of the connecting base, and the connecting nozzle is internally provided with a shunt component and a transmission component; the application is characterized in that a plurality of high-pressure water flow beam assemblies are distributed in the shield machine cutter drum, the connecting nozzle can cyclically change the water flow direction and rotate back and forth through the unique shunt and transmission design, multi-angle flushing is realized, the shield machine cutter drum interior and the cutter surface are fully covered, and external silt intrusion is resisted. Meanwhile, the frequent change of the water flow impact force of the spoiler structure breaks the stable state of the sludge particles, and the sludge flushing effect is improved. The shunt component can automatically switch the water flow direction, the connecting nozzle cyclically changes the rotating direction, and the water flow can fully cover the cutter drum area.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of tunneling, in particular to a high-pressure water flow beam flushing device and system inside a cutter cylinder of a shield tunneling machine. BACKGROUND

[0002] During underground tunneling operation of the shield tunneling machine, the cutter cylinder as a key component has a very harsh and complex working environment and faces the risk of a large amount of silt flowing in, which seriously affects the normal operation and service life of the shield tunneling machine. At present, some shield tunneling machines adopt the method of setting a high-pressure water nozzle inside the cutter cylinder, expecting to use the high-pressure water jet to resist the silt intrusion outside the cutter cylinder. However, the water jet pressure at the outlet is greatly reduced, and it is difficult to form an effective silt shielding barrier. The silt can still enter the cutter cylinder and the cutter surface, increasing the equipment wear risk and reducing the tunneling efficiency.

[0003] A Chinese patent with the authorized publication number CN114151095B discloses a coaxial and different-speed shield tunneling machine / TBM (Tunnel Boring Machine) carrying high-pressure water jet structure and shield tunneling machine / TBM. The coaxial and different-speed shield tunneling machine / TBM carrying high-pressure water jet structure comprises a cutter head, a containing guide rail arranged on the cutter head, and a moving spray seat slidingly connected to the containing guide rail. The moving spray seat is provided with a mounting cavity, and the mounting cavity is provided with a water jet nozzle. The water jet nozzle is connected to a high-pressure water line through a pipeline. During operation, the moving spray seat is allowed to freely move along the containing guide rail, and the water jet nozzle is allowed to have a tangential relative motion with the cutter head, so as to realize coaxial and different-speed rotation of the water jet nozzle and the cutter head. The problem of too fast moving speed of the water jet nozzle, insufficient erosion time, and too low jet rock breaking efficiency of the existing water jet carried on the shield tunneling machine / TBM is solved.

[0004] However, the technical solution still has some technical problems. The water pressure is not enough when the water jet is sprayed, and the impact force of the water flow is fixed when the water jet nozzle is flushed, which is not conducive to the deep treatment of the sludge. SUMMARY

[0005] In view of the problems existing in the prior art, the application is proposed.

[0006] To solve the above technical problems, the application provides the following technical solution: a high-pressure water flow beam flushing device inside a cutter cylinder of a shield tunneling machine, comprising a shield tunneling machine cutter cylinder.

[0007] A high-pressure water jet assembly provided on the inner wall of the shield machine cutter barrel includes a connecting base and a connecting nozzle provided on the outer wall of the connecting base. A diverter component and a transmission component are provided inside the connecting nozzle. The diverter component divides the water flow entering the connecting nozzle into two directions in a reciprocating manner. The water flows in different directions drive the transmission component to move, causing the connecting nozzle to rotate back and forth outside the connecting base.

[0008] The outer wall of the connecting base is provided with a shell and the end of the shell is provided with a flow-disturbing structure. The flow-disturbing structure is affected by the rotation of the connecting nozzle to interfere with the sprayed water flow, thereby improving the flushing efficiency of the sludge by changing the impact force of the water flow.

[0009] As an optimal solution for the high-pressure water jet flushing device inside the shield machine barrel described in this application, the end of the outer shell is fixed to the outer wall of the connecting base, and the inner wall of the outer shell is provided with a pushing structure. The pushing structure is affected by the rotation of the connecting nozzle, driving the spoiler structure at the end of the outer shell to open and close.

[0010] As a preferred solution of the high-pressure water jet flushing device inside the shield machine barrel described in the present application, the pushing structure includes a movable ring mounted on the outer wall of the connecting nozzle, a slider is fixed to the outer wall of the movable ring, and the end of the slider extends into the vertical groove opened on the inner wall of the outer shell, and the movable ring is restricted by the vertical groove and cannot rotate.

[0011] As a preferred solution of the high-pressure water jet flushing device inside the shield machine barrel described in the present application, wherein: the inner wall of the movable ring is provided with an inclined groove, and the inclined groove cooperates with the sliding column provided on the outer wall of the connecting nozzle, and the sliding column slides on the inner wall of the inclined groove to drive the movable ring to move on the outer wall of the connecting nozzle, the end of the movable ring is connected to a connecting rod and the end of the connecting rod is hinged to a guide rod, the end of the guide rod is hinged to a connecting ring and the connecting ring is sleeved on the outer wall of the water outlet at the end of the connecting nozzle.

[0012] As a preferred solution of the high-pressure water jet flushing device inside the shield machine barrel described in the present application, the flow disturbance structure includes a guide rod and a fan blade arranged on the outer wall of the guide rod, the end of the guide rod is hinged to the outer wall of the connecting ring and the connecting ring is fixed to the end of the outer shell, and the end of the guide rod is located in the recess opened at the end of the outer shell.

[0013] As a preferred scheme of the shield machine cutter barrel internal high-pressure water flow beam flushing device described in the application, wherein: the flow dividing component comprises a turning plate, the turning plate is hinged to the inner wall of the connecting nozzle, the other end of the turning plate is connected with a rocker, the other end of the rocker is provided with a turning block, the end of the turning block extends into the inner wall of the arc groove formed in the end of the connecting nozzle and is located on the end surface of the guide block fixed on the outer wall of the arc groove, the turning block and the guide block extend into the inner wall of the limiting ring fixed on the outer wall of the connecting base and slide in the limiting groove formed in the inner wall of the limiting ring, when the guide block touches the inner wall of the limiting groove, the turning block rotates to drive the rocker to move the turning plate at the end to change the direction of water flow.

[0014] As a preferred scheme of the shield machine cutter barrel internal high-pressure water flow beam flushing device described in the application, wherein: the outer wall of the connecting nozzle is symmetrically provided with a water outlet hole, the turning plate is attached to the water outlet hole, the water outlet hole is fixed with a flow dividing plate on the side away from the turning plate, and the end of the flow dividing plate is provided with a flow guide plate, and the flow dividing plate and the flow guide plate cooperate to form flow channels in different directions.

[0015] As a preferred scheme of the shield machine cutter barrel internal high-pressure water flow beam flushing device described in the application, wherein: the outer wall of the connecting nozzle is provided with a water wheel at the center, the other end of the water wheel extends into the inner wall of the connecting nozzle and is provided with a transmission gear, the transmission gear is engaged with a reduction gear set arranged inside the connecting nozzle, and the end of the reduction gear set is engaged with the fixed nozzle on the inner wall of the connecting base to drive the connecting nozzle to rotate at the end of the connecting base.

[0016] As a preferred scheme of the shield machine cutter barrel internal high-pressure water flow beam flushing device described in the application, wherein: the outer wall of the connecting base is provided with a mounting head, the outer wall of the mounting head is connected with a pipeline, the inner wall of the pipeline is provided with a flow guide rib plate for reducing turbulence, the inside of the connecting nozzle is further fixed with an embedded block, the inner wall of the embedded block is provided with a cavity, the inner wall of the cavity is fixed with a support, the end of the support is sleeved with a stop ring, and the outer wall of the stop ring is provided with a first elastic member for pushing the stop ring to make it close to the inner wall of the cavity.

[0017] A regulating system applied to the shield machine cutter barrel internal high-pressure water flow beam flushing device, wherein: a plurality of high-precision pressure sensors are uniformly distributed on the outer wall of the cutter barrel, a central control system and a high-pressure water pump.

[0018] The pressure sensor is used to monitor the external soil pressure and water pressure changes in real time and transmit the data to the central control system.

[0019] The central control system is provided with an adaptive algorithm, which dynamically adjusts the output power and frequency of the high-pressure water pump according to the received pressure data, to accurately control the water jet pressure and keep the water jet pressure and the external pressure in dynamic balance.

[0020] The application has the beneficial effects that: the high-pressure water flow beam assembly is distributed in the cutter barrel of the shield machine, the connecting nozzle is connected through the unique shunt and transmission design, the water flow direction can be changed and rotated back and forth, multi-angle flushing is realized, the cutter barrel inside and the cutter surface are fully covered, and external silt intrusion is resisted. Meanwhile, the frequent change of the water flow impact force of the spoiler structure breaks the stable state of the sludge particles, and the sludge flushing effect is improved. The shunt part can automatically switch the water flow direction, so that the connecting nozzle changes the rotation direction cyclically, and the water flow fully covers the cutter barrel area. The design of the gradually expanding pressure chamber of the water outlet guides the water flow to be sprayed according to the predetermined path, reduces the disorder, stabilizes the outlet water jet pressure, and improves the shielding silt efficiency.

[0021] The device has an automatic water flow pressure adjusting function, which can automatically release pressure when the water pressure in the connecting nozzle is too high, and ensures the operation stability. Meanwhile, the guide rib plate in the pipeline reduces water flow turbulence, and provides stable water flow conditions for the overall flushing function. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 It is a whole structure schematic diagram of the high-pressure water flow beam flushing device in the cutter barrel of the shield machine.

[0024] Figure 2 It is a structure schematic diagram of the high-pressure water flow beam assembly in the application.

[0025] Figure 3 It is a side sectional view of the shell in the application.

[0026] Figure 4 It is an internal structure explosion schematic diagram of the shell in the application.

[0027] Figure 5 It is an explosion structure schematic diagram of the spoiler structure in the application.

[0028] Figure 6 It is a side schematic diagram of the connecting nozzle in the application.

[0029] Figure 7 It is a position relationship schematic diagram of the turning block and the guide block in the application.

[0030] Figure 8 It is an internal structure schematic diagram of the connecting nozzle in the application.

[0031] Figure 9 Figure 7 is a side view of the water jet in the present application;

[0032] Figure 10 Figure 8 is a schematic view of the structure at A in Figure 7. Figure 9

[0033] Reference signs: 100, shield machine cutter drum;

[0034] 200, high-pressure water flow beam assembly; 201, connecting base; 2011, mounting head; 2012, fixed nozzle; 2013, pipe; 2014, guide rib plate; 2015, limiting ring; 2016, limiting groove; 202, connecting nozzle; 2021, sliding column; 2022, arc groove; 2023, guide block; 203, water wheel; 2031, transmission gear; 204, water outlet hole; 2041, flow dividing plate; 2042, guide plate; 205, built-in block; 2051, cavity; 2052, support column; 2053, blocking ring; 2054, first elastic member; 206, speed reduction gear set; 207, turning plate; 2071, rocker; 2072, turning block; 208, water jet.

[0035] 300, outer shell; 301, vertical groove; 302, notch; 303, moving ring; 304, sliding block; 305, inclined groove; 306, connecting rod; 307, connecting ring; 308, guide rod; 309, fan blade. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0037] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0038] Secondly, "one embodiment" or "embodiment" referred to herein means that a specific feature, structure or characteristic can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent or alternative to other embodiments.

[0039] Embodiment 1

[0040] The first embodiment of the present application provides a high-pressure water flow beam flushing device inside a shield machine cutter drum.

[0041] Specifically, refer to Figures 1-5 ​The shield machine cutter drum 100 comprises a shield machine cutter drum 100;

[0042] The high-pressure water flow beam assembly 200 arranged on the inner wall of the shield machine cutter drum 100 comprises a connecting base 201 and a connecting nozzle 202 arranged on the outer wall of the connecting base 201. The connecting nozzle 202 is internally provided with a flow distribution component and a transmission component. The water flow entering the interior of the connecting nozzle 202 is circulated and reciprocated into two directions through the flow distribution component. The transmission component is driven to move by the water flow in different directions, so that the connecting nozzle 202 rotates back and forth outside the connecting base 201.

[0043] The outer wall of the connecting base 201 is sleeved with an outer shell 300, and the end of the outer shell 300 is provided with a spoiler structure. The spoiler structure is affected by the rotation of the connecting nozzle 202 to interfere with the water flow sprayed out, so as to improve the scouring efficiency of the sludge by changing the impact force of the water flow.

[0044] A plurality of high-pressure water flow beam assemblies 200 are installed in the interior of the shield machine cutter drum 100, which are used to resist the invasion of the silt outside the cutter drum and wash the silt on the surface of the cutter drum. The connecting base 201 is fixed in the interior of the shield machine cutter drum 100, and the water flow is sprayed outwards through the connecting nozzle 202.

[0045] The connecting nozzle 202 is internally provided with a flow distribution component and a transmission component. The water flow first passes through the flow distribution component in the interior of the connecting nozzle 202, and the water flow entering the interior of the connecting nozzle 202 is divided into two directions and transmitted outward. When passing through the transmission component, the transmission component is driven to move by the water flow. When the transmission component moves, the connecting nozzle 202 rotates on the surface of the connecting base 201. The connecting nozzle 202 rotates in one direction on the surface of the connecting base 201 under the influence of the transmission component. When it rotates to a certain angle, the flow direction of the water flow is changed by triggering the internal flow distribution component. The change of the flow direction of the water flow changes the movement of the transmission component, so that the connecting nozzle 202 moves in the opposite direction, and the cycle is repeated.

[0046] The outer shell 300 is fixed outside the connecting base 201 and sleeved outside the connecting nozzle 202. The connecting nozzle 202 reciprocally rotates in the interior of the outer shell 300. Through the reciprocating rotation of the connecting nozzle 202, the spoiler structure at the top of the outer shell 300 is driven to move. The spoiler structure interferes with the water flow sprayed out of the connecting nozzle 202, changes the impact force of the sprayed water, and breaks the relatively stable state formed between the sludge particles by frequently changing the impact force. When the impact force suddenly increases, it will produce stronger shear force and impact force on the sludge particles, so that the particles that have gathered together are more easily dispersed. When the impact force suddenly decreases, the sludge particles will also produce relative displacement due to the change of force, further promoting the separation between the particles.

[0047] Embodiment 2

[0048] For the second embodiment of the present application, the embodiment is based on the previous embodiment.

[0049] Specifically, referring to Figure 2 and Figure 3 , the end of the shell 300 is fixed to the outer wall of the connecting base 201, and the inner wall of the shell 300 is provided with a pushing structure, which is affected by the rotation of the connecting nozzle 202 and drives the opening and closing of the spoiler structure at the end of the shell 300.

[0050] Among them, the pushing structure cooperates with the spoiler structure, and the movement of the connecting nozzle 202 in the shell 300 drives the movement of the pushing structure. The connecting nozzle 202 rotates in a loop in the left and right half of the inner wall of the shell 300, and the pushing structure is affected by the driving of the connecting nozzle 202 and moves up and down in a loop, thereby driving the spoiler structure to continuously open and close outside the shell 300. The opening and closing of the spoiler structure will not be completely closed, but only slightly inwardly closed to change the diameter and flow rate of the water flow.

[0051] Preferably, the pushing structure includes a moving ring 303 sleeved on the outer wall of the connecting nozzle 202, and the outer wall of the moving ring 303 is fixed with a sliding block 304, and the end of the sliding block 304 extends into the vertical groove 301 in the inner wall of the shell 300. The moving ring 303 is limited by the vertical groove 301 and cannot rotate.

[0052] Among them, the sliding block 304 on the surface of the moving ring 303 is symmetrically provided with two blocks, which extend to the inner wall of the vertical groove 301 in the inner wall of the shell 300. Since the shell 300 is fixed outside the connecting base 201, the shell 300 cannot move, so the moving ring 303 can only slide linearly inside the shell 300 through the sliding block 304 on the surface, and cannot rotate.

[0053] Referring to Figures 2-5 and Figure 9 , the inner wall of the moving ring 303 is provided with an inclined groove 305, which cooperates with the sliding column 2021 provided on the outer wall of the connecting nozzle 202. The sliding column 2021 slides in the inner wall of the inclined groove 305 to drive the moving ring 303 to move on the outer wall of the connecting nozzle 202. The end of the moving ring 303 is connected with a connecting rod 306, and the end of the connecting rod 306 is hinged with a guide rod 308. The end of the guide rod 308 is hinged with a connecting ring 307, and the connecting ring 307 is sleeved on the outer wall of the water outlet 208 at the end of the connecting nozzle 202.

[0054] Among them, the end of the sliding column 2021 on the outer wall of the connecting nozzle 202 extends into the inclined groove 305 in the inner wall of the moving ring 303. When the connecting nozzle 202 rotates, the surface sliding column 2021 drives the moving ring 303 to move up and down inside the shell 300.

[0055] The water jet 208 is fixed outside the connecting nozzle 202, and the water flow finally enters the water jet 208 after entering the connecting nozzle 202 and is sprayed onto the shield cutter 100, as shown in Figure 9 The part where the water jet 208 is connected with the connecting nozzle 202 presents a gradually converging style, and after a narrow port pipeline, it presents an expanding style. The water jet 208 passes through a gradually expanding booster chamber to guide the high-pressure water flow to spray along a predetermined path, reduce the turbulent flow of the water flow inside the cutter, reduce the speed of the water flow in the chamber, and restore the pressure to ensure that the water jet pressure at the outlet meets the basic requirements of shielding silt and improves the shielding efficiency of the water flow.

[0056] The connecting ring 307 outside the water jet 208 is installed at the top end of the shell 300, and the guide rods 308 are hingedly arranged outside the connecting ring 307. The surface of the guide rod 308 is movably connected with the top end of the connecting rod 306. Through the movement of the moving ring 303 on the surface of the connecting nozzle 202, the connecting rod 306 drives the guide rod 308 to open and close outside the connecting ring 307.

[0057] Preferably, the spoiler structure includes the guide rod 308 and the fan blades 309 arranged on the outer wall of the guide rod 308. The end of the guide rod 308 is hingedly connected to the outer wall of the connecting ring 307, and the connecting ring 307 is fixed to the end of the shell 300. The end of the guide rod 308 is located in the notch 302 formed in the end of the shell 300.

[0058] The fan blades 309 are fixed to the surface of the guide rod 308. Through the array of multiple fan blades 309, when the moving ring 303 moves outside the connecting nozzle 202, the connecting rod 306 drives the guide rod 308 and the fan blades 309 to move together, and the moving ring 303 continuously opens and closes at the top of the shell 300. The water flow sprayed through the water jet 208 is disturbed, the outflow diameter of the water flow is changed, the impact force of the water flow is disturbed, and the sludge on the cutter is quickly washed by the change of the impact force of the water flow.

[0059] In summary, in use, the end of the shell 300 is fixed to the outer wall of the connecting base 201, and the connecting nozzle 202 is located inside the shell 300. The connecting nozzle 202 rotates left and right in the shell 300 by half a circle, and the sliding column 2021 on the surface drives the moving ring 303 to reciprocate on the outer surface of the connecting nozzle 202.

[0060] The connecting ring 307 is sleeved outside the water outlet 208 and fixed at the end of the shell 300. The guide rod 308 is hingedly connected outside the connecting ring 307 and located in the notch 302 formed at the end of the shell 300. The outer wall of the guide rod 308 is provided with the fan blade 309. The connecting rod 306 is affected by the movement of the moving ring 303, drives the guide rod 308 and the fan blade 309 on the surface to move and form a spoiler structure, interferes with the water flow sprayed by the water outlet 208, guides the high-pressure water flow to spray along a predetermined path through the gradually expanding booster chamber, reduces the turbulent flow of the water flow in the cutter barrel, reduces the speed of the water flow in the chamber and restores the pressure, and ensures that the water jet pressure at the outlet meets the basic requirements of shielding silt. During the spraying of the water flow, the fan blade 309 of the spoiler structure disturbs the water flow, changes the outflow diameter of the water flow, and interferes with the impact force of the water flow. The change of the impact force of the water flow is used to quickly flush the sludge on the cutter barrel. The opening and closing of the spoiler structure is not completely closed, but only slightly changes the diameter and flow rate of the water flow.

[0061] Embodiment 3

[0062] For the third embodiment of the present application, the embodiment is based on the previous embodiment.

[0063] Specifically, referring to Figures 7-10 , the flow splitting component includes a turning plate 207 hingedly connected to the inner wall of the connecting nozzle 202. The turning plate 207 is connected to a rocker 2071 at the other end, and the rocker 2071 is provided with a turning block 2072 at the other end. The turning block 2072 extends to the inner wall of the arc groove 2022 formed at the end of the connecting nozzle 202 and is located at the end surface of the guide block 2023 fixed to the outer wall of the arc groove 2022. The turning block 2072 and the guide block 2023 extend to the inner wall of the limiting ring 2015 fixed to the outer wall of the connecting base 201 and slide in the limiting groove 2016 formed in the inner wall of the limiting ring 2015. When the guide block 2023 touches the inner wall of the limiting groove 2016, the turning block 2072 rotates to drive the rocker 2071 to move the turning plate 207 at the end to change the direction of the water flow.

[0064] The turning plate 207 and the rocker 2071 cooperate to flip on the inner wall of the connecting nozzle 202. The turning block 2072 at the bottom of the rocker 2071 extends to the outside of the connecting nozzle 202 and rotates in the limiting groove 2016 below the limiting ring 2015 along with the connecting nozzle 202. The connecting nozzle 202 rotates inside the limiting ring 2015, driving the turning block 2072 to rotate. Since the limiting ring 2015 is installed outside the connecting base 201, the limiting ring 2015 does not move.

[0065] When the connecting nozzle 202 rotates, the guide block 2023 on the outer surface moves with the rotating block 2072. When the guide block 2023 touches the edge of the inner wall of the limiting groove 2016, the rotating block 2072 touches the edge of the inner wall of the limiting groove 2016 and moves, the rocker 2071 rotates, driving the rotating plate 207 to rotate, changing the path of the water flow, changing the movement of the transmission component, changing the rotating direction of the connecting nozzle 202, and repeating the cycle.

[0066] Preferably, referring to Figures 6-8 , the connecting nozzle 202 has a water outlet hole 204 symmetrically formed on the outer wall, the rotating plate 207 is attached to the water outlet hole 204, the water outlet hole 204 has a flow dividing plate 2041 fixed on the side away from the rotating plate 207, and the flow dividing plate 2041 has a flow guide plate 2042 at the end.

[0067] The water outlet hole 204 is symmetrically formed on the outer surface of the connecting nozzle 202, and the water outlet hole 204 and the rotating plate 207 are matched, the rotating plate 207 is driven by the rocker 2071, so that one side of the rotating plate 207 is attached to the surface of the water outlet hole 204, so that the water flow flows out from the other water outlet hole 204 that is not blocked.

[0068] As shown in Figure 6 , the flow dividing plate 2041 is fixed on the surface of the connecting nozzle 202, and is located between the two water outlet holes 204, and cooperates with the flow guide plate 2042 to form two-direction water flow channels. When one side of the water outlet hole 204 is blocked, the water flow will flow out from the other side of the water outlet hole 204 and form another water flow.

[0069] As shown in Figure 8 , Figure 10 , the connecting nozzle 202 has a water wheel 203 at the outer wall shaft center, the water wheel 203 extends to the inner wall of the connecting nozzle 202 and is provided with a transmission gear 2031, the transmission gear 2031 is engaged with a speed reduction gear set 206 arranged inside the connecting nozzle 202, and the end of the speed reduction gear set 206 is engaged with the fixed nozzle 2012 on the inner wall of the connecting base 201 to drive the connecting nozzle 202 to rotate at the end of the connecting base 201.

[0070] The water wheel 203 is fixed in the middle of the connecting nozzle 202 and is driven to rotate by the water flow from the water outlet hole 204. The directions of rotation of the water wheel 203 driven by the water flows from different water outlet holes 204 are opposite.

[0071] The water wheel 203 rotates coaxially with the transmission gear 2031. The rotation of the water wheel 203 drives the transmission gear 2031 to rotate inside the connecting nozzle 202. The transmission gear 2031 is engaged with the speed reduction gear set 206. The rotation speed of the water wheel 203 is reduced by the speed reduction gear set 206 and then transmitted to the last speed reduction gear. The last speed reduction gear is engaged with the fixed nozzle 2012. The fixed nozzle 2012 is fixed on the connecting base 201. The connecting nozzle 202 rotates slowly outside the connecting base 201 through the fixed nozzle 2012. At the same time, the rotation of the connecting nozzle 202 drives the rocker 2071 inside to deflect and drive the deflection plate 207 to flip, changing the rotation direction of the water wheel 203 and the connecting nozzle 202.

[0072] Preferably, referring to Figures 1-3 、 Figure 9 and Figure 10 , the connecting base 201 is provided with a mounting head 2011 on the outer wall, and a pipeline 2013 is connected to the outer wall of the mounting head 2011. The inner wall of the pipeline 2013 is provided with a flow guide rib plate 2014 for reducing turbulence. The connecting nozzle 202 is further fixed with an embedded block 205 inside. The inner wall of the embedded block 205 is provided with

[0073] a cavity 2051, and the inner wall of the cavity 2051 is fixed with a support 2052. The end of the support 2052 is sleeved with a stop ring 2053, and the outer wall of the stop ring 2053 is provided with a first elastic member 2054 for pushing the stop ring 2053 to be close to the inner wall of the cavity 2051.

[0074] The flow guide rib plate 2014 is fixed on the inner wall of the pipeline 2013 to reduce turbulence in the pipeline 2013. After the water flow enters the inside of the connecting nozzle 202, it directly flows through the water outlet hole 204 to the water spraying port 208 and is sprayed out. When the internal water flow pressure of the connecting nozzle 202 is too large, the water flow is discharged at a certain speed only through the water outlet hole 204, which cannot quickly reduce the pressure. At this time, the stop ring 2053 will move on the surface of the support 2052, so that the water flow enters the cavity 2051 and enters the water spraying port 208 through the pressure relief port connected with the cavity 2051 through the connecting nozzle 202.

[0075] In summary, in use, the mounting head 2011 on the outer wall of the connecting base 201 connects the pipeline 2013. The flow guide rib plate 2014 on the inner wall of the pipeline 2013 reduces water flow turbulence. The water flow flows from the pipeline 2013 into the connecting nozzle 202.

[0076] When the water flow enters the connecting nozzle 202, if the internal water pressure is normal, the water flow directly flows through the water outlet hole 204 to the water outlet 208 and is sprayed out. The water flow from the water outlet hole 204 drives the water wheel 203 to rotate, and the water wheel 203 rotates coaxially with the transmission gear 2031, thereby driving the transmission gear 2031 to rotate. The transmission gear 2031 is engaged with the speed reduction gear set 206, and the speed reduction gear set 206 transmits the rotation speed of the water wheel 203 to the last speed reduction gear after slowing down, and the last speed reduction gear is engaged with the fixed nozzle 2012. Since the fixed nozzle 2012 is fixed on the connecting base 201, the connecting nozzle 202 is slowly rotated at the end of the connecting base 201.

[0077] When the connecting nozzle 202 rotates, the guide block 2023 on the outside thereof moves and rotates with the steering block 2072. When the guide block 2023 touches the inner wall edge of the limiting groove 2016, the steering block 2072 also touches the inner wall edge of the limiting groove 2016 and moves, driving the rocker 2071 to rotate, thereby making the steering plate 207 rotate. After the steering plate 207 rotates, one side thereof is attached to the surface of one water outlet hole 204, blocking the water outlet hole 204, so that the water flow flows out from another water outlet hole 204 which is not blocked, changing the water flow path.

[0078] The speeds at which the water flows from different water outlet holes 204 drive the water wheel 203 to rotate are opposite. Since the rotation direction of the water wheel 203 is changed, the rotation direction of the connecting nozzle 202 is finally changed through the transmission gear 2031 and the speed reduction gear set 206, and the cycle is repeated.

[0079] When the internal water flow pressure of the connecting nozzle 202 is too large, and the water flow cannot be quickly discharged through the water outlet hole 204 to reduce the pressure, the water pressure drives the blocking ring 2053 to move on the surface of the support 2052, the water flow enters the cavity 2051 of the built-in block 205, and passes through the pressure relief port connected with the cavity 2051, enters the water outlet 208 through the connecting nozzle 202, and realizes pressure relief.

[0080] Embodiment 4

[0081] For the fourth embodiment of the present application, the embodiment provides an adjusting system.

[0082] Specifically, it comprises a plurality of high-precision pressure sensors uniformly distributed on the outer wall of the cutter barrel, a central control system and a high-pressure water pump;

[0083] The pressure sensor is used to monitor the external soil pressure and water pressure in real time and transmit data to the central control system;

[0084] The central control system has a built-in adaptive algorithm that dynamically adjusts the output power and frequency of the high-pressure water pump based on the received pressure data to accurately control the water jet pressure and maintain a dynamic balance between the water jet pressure and the external pressure.

[0085] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, which should be included in the scope of the claims of the present application.

Claims

1. A shield tunneling machine cutter drum internal high pressure water jet beam scouring device, characterized in that, include: Shield machine cutter barrel (100); A high-pressure water jet assembly (200) provided on the inner wall of the shield machine cutter barrel (100) comprises a connecting base (201) and a connecting nozzle (202) provided on the outer wall of the connecting base (201); a diversion component and a transmission component are provided inside the connecting nozzle (202); the diversion component divides the water flow entering the connecting nozzle (202) into two directions in a reciprocating manner; the water flows in different directions drive the transmission component to move, so that the connecting nozzle (202) rotates back and forth outside the connecting base (201); The outer wall of the connecting base (201) is provided with a shell (300), and the end of the shell (300) is provided with a flow-disturbing structure. The flow-disturbing structure is affected by the rotation of the connecting nozzle (202) to interfere with the ejected water flow, thereby improving the flushing efficiency of the sludge by changing the impact force of the water flow; The end of the housing (300) is fixed to the outer wall of the connecting base (201), and the inner wall of the housing (300) is provided with a pushing structure, which is affected by the rotation of the connecting nozzle (202) and drives the flow-disturbing structure at the end of the housing (300) to open and close; The pushing structure comprises a movable ring (303) sleeved on the outer wall of the connecting nozzle (202), a slider (304) being fixed to the outer wall of the movable ring (303), an end of the slider (304) extending into a vertical groove (301) provided on the inner wall of the housing (300), and the movable ring (303) being restricted by the vertical groove (301) and unable to rotate; The inner wall of the movable ring (303) is provided with an inclined groove (305), and the inclined groove (305) cooperates with a sliding column (2021) provided on the outer wall of the connecting nozzle (202). The sliding column (2021) slides on the inner wall of the inclined groove (305) to drive the movable ring (303) to move on the outer wall of the connecting nozzle (202). The end of the movable ring (303) is connected to a connecting rod (306), and the end of the connecting rod (306) is hinged to a guide rod (308). The end of the guide rod (308) is hinged to a connecting ring (307), and the connecting ring (307) is sleeved on the outer wall of the water outlet (208) at the end of the connecting nozzle (202); The spoiler structure comprises a guide rod (308) and a fan blade (309) arranged on the outer wall of the guide rod (308); the end of the guide rod (308) is hinged to the outer wall of the connecting ring (307), and the connecting ring (307) is fixed to the end of the housing (300); the end of the guide rod (308) is located in a notch (302) opened at the end of the housing (300); The shunt component includes a turning plate (207) hinged to the inner wall of the connecting nozzle (202), the other end of the turning plate (207) is connected with a rocker (2071), the other end of the rocker (2071) is provided with a turning block (2072), the end of the turning block (2072) extends to the inner wall of the arc groove (2022) opened in the end of the connecting nozzle (202) and is located on the end surface of the guide block (2023) fixed on the outer wall of the arc groove (2022), the turning block (2072) and the guide block (2023) extend to the inner wall of the limiting ring (2015) fixed on the outer wall of the connecting base (201) and slide in the limiting groove (2016) opened in the inner wall of the limiting ring (2015), when the guide block (2023) touches the inner wall of the limiting groove (2016), the turning block (2072) rotates to drive the rocker (2071) to move the end of the turning plate (207) to change the direction of water flow; The outer wall of the connecting nozzle (202) is provided with a water wheel (203) at the center of the shaft, the other end of the water wheel (203) extends to the inner wall of the connecting nozzle (202) and is provided with a transmission gear (2031), the transmission gear (2031) is engaged with a speed reduction gear set (206) arranged in the connecting nozzle (202), the end of the speed reduction gear set (206) is engaged with the fixed nozzle (2012) in the inner wall of the connecting base (201) to drive the connecting nozzle (202) to rotate at the end of the connecting base (201); The outer wall of the connecting nozzle (202) is symmetrically provided with a water outlet hole (204), the turning plate (207) is attached to the water outlet hole (204), the side, away from the turning plate (207), of the water outlet hole (204) is fixed with a shunt plate (2041), and the end of the shunt plate (2041) is provided with a flow guide plate (2042), and different direction flow channels are formed by the shunt plate (2041) and the flow guide plate (2042).

2. The shield machine cutter cylinder internal high-pressure water flow beam flushing device according to claim 1, characterized in that: The outer wall of the connecting base (201) is provided with a mounting head (2011), and the outer wall of the mounting head (2011) is connected with a pipeline (2013), the inner wall of the pipeline (2013) is provided with a flow guide rib plate (2014) for reducing turbulence, and the inner wall of the connecting nozzle (202) is further fixed with an embedded block (205), the inner wall of the embedded block (205) is provided with a cavity (2051), and the inner wall of the cavity (2051) is fixed with a support column (2052), the end of the support column (2052) is sleeved with a blocking ring (2053), and the outer wall of the blocking ring (2053) is provided with a first elastic member (2054) for pushing the blocking ring (2053) to make it close to the inner wall of the cavity (2051).

3. A regulating system applied to the high-pressure water jet scouring device inside the cutter drum of the shield tunneling machine as claimed in claim 1 or 2, characterized in that, It comprises: A plurality of high-precision pressure sensors uniformly distributed on the outer wall of the cutter barrel, a central control system, and a high-pressure water pump; The pressure sensor is used for real-time monitoring of external soil pressure and water pressure changes and transmitting data to the central control system; The central control system is built-in adaptive algorithm, according to the received pressure data dynamic adjustment high pressure water pump's output power, frequency, with precision control water jet pressure, make water jet pressure and external pressure keep dynamic balance.

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