Slurry balance push bench

Abstract

The invention discloses a slurry balance pipe jacking machine which comprises an outer cylinder, a cutter head and a turning plate. The cutterhead is rotationally arranged on the outer cylinder, a mud-water mixing bin is arranged between the cutterhead and the outer cylinder, a plurality of windows are formed in the cutterhead, and the windows are arranged at intervals in the circumferential direction of the cutterhead; the turning plate is rotationally arranged in the window, cutter heads are arranged on the two side faces of the turning plate, the turning plate can rotate along with the cutter head, the turning plate can turn over relative to the cutter head in the window, the cutter head on one side is located on the outer side of the cutter head, and the cutter head on the other side is located in the mud-water mixing bin. And the mud-water mixing bin is communicated with the outside through the window. According to the slurry balance pipe jacking machine, the turning plate is controlled to turn over in a reciprocating mode, and the tool bits on the two sides of the turning plate can be switched to the working state, so that the influence of mud cake forming on the working efficiency is reduced, and the working efficiency of the slurry balance pipe jacking machine is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe jacking machines, in particular to a slurry-balanced pipe jacking machine. Background Art

[0002] A slurry pipe jacking machine is a mechanical, automated tunnel construction device primarily used for underground pipeline laying projects with high groundwater pressure (capable of withstanding water pressures up to 10 bar) and a wide range of soil properties. Its main components include a cutterhead, a slurry mixing chamber, a working chamber, a water inlet pipe, and a slurry discharge pipe. During construction, the cutterhead cuts rock into the slurry mixing chamber, where water is fed through the water inlet pipe. The rock and water mix in the chamber, forming a slurry that is then discharged through the slurry discharge pipe. This process not only creates a slurry balance but also ensures that the pressure within the slurry mixing chamber is balanced with the pressure on the cutterhead working surface, thereby ensuring stable cutterhead rotation.

[0003] However, the existing slurry-water balanced pipe jacking machine still has some problems in actual operation. The mud generated by the cutter disc cutting easily sticks to the cutter disc, forming a mud cake, and the accumulation of mud cake will significantly reduce the working efficiency of the cutter disc. Moreover, since the slurry-water balanced pipe jacking machine usually works in an underground environment and the working surface of the cutter disc is in close contact with the mud, it is very difficult to clean the cutter disc during operation, which not only affects the construction efficiency of the equipment, but also increases the construction cost. Summary of the Invention

[0004] In view of the above problems, the present invention proposes a slurry-water balanced pipe jacking machine to overcome the above problems or at least partially solve the above problems.

[0005] A slurry-water balanced pipe jacking machine comprises an outer cylinder, a cutter disc and a flap; the cutter disc is rotatably arranged on the outer cylinder, a mud-water mixing chamber is provided between the cutter disc and the outer cylinder, a plurality of windows are provided on the cutter disc, and the plurality of windows are spaced apart along the circumferential direction of the cutter disc; the flap is rotatably arranged on the window, a cutter head is provided on both sides of the flap, the flap can rotate with the cutter disc, the flap can be flipped relative to the cutter disc in the window, the cutter head on one side is located outside the cutter disc, and the cutter head on the other side is located in the mud-water mixing chamber, and the window keeps the mud-water mixing chamber connected to the outside.

[0006] Preferably, the slurry-water balanced pipe jacking machine is also provided with a control disk; the control disk is rotatably arranged with the cutter disc, and a control track is provided on the control disk; a flip pin is provided at one end of the flap, and the flip pin and the flip plate are eccentrically arranged relative to the rotating shaft of the window, and the flip pin is slidably arranged on the control track; the control disk can rotate relative to the cutter disc to drive the flip pin to move relative to the control track to drive the flap to rotate.

[0007] Preferably, the control track includes a first track, a second track, a third track and a limiting track. The first track, the second track and the third track are connected to form a Y-shaped structure. The limiting track is arranged along the circumferential direction of the control disk. The free end of the first track and the free end of the third track are both connected to the adjacent limiting track. The flip pin can drive the flip plate to flip 180 degrees in the process of entering the third track from the first track via the second track and entering the first track from the third track via the second track.

[0008] Preferably, the slurry-water balanced pipe jacking machine is further provided with a push rod; one end of the push rod is connected to the cutter disc, and the other end of the push rod is connected to the control disc, and the push rod can push the control disc to rotate back and forth relative to the cutter disc.

[0009] Preferably, the mud-water balanced pipe jacking machine is further provided with a stirring frame and a water injection pipe; the stirring frame is rotatably arranged in the mud-water mixing bin, and the water inlet of the water injection pipe extends to the mud-water mixing bin.

[0010] Preferably, a cleaning plate is provided on the stirring frame; the cleaning plate is located on the side of the stirring frame facing the window, and the cleaning plate extends between the multiple cutter heads located on one side of the mud-water mixing bin in the flap and can rotate relative to the cutter heads.

[0011] Preferably, the mud-water balancing jacking pipe is further provided with a cleaning flow channel; the cleaning flow channel extends to the cleaning plate, and the end of the cleaning flow channel is provided with a water spray hole facing the cutter head.

[0012] Preferably, the slurry balanced pipe jacking machine is also provided with a first bevel gear, a second bevel gear and a third bevel gear; the first bevel gear is coaxially fixedly connected to the cutter disc, the second bevel gear is rotatably set on the outer cylinder, the third bevel gear is fixedly connected to the stirring frame and is coaxially arranged with the first bevel gear, the second bevel gear is located between the first bevel gear and the third bevel gear and is simultaneously meshed with the first bevel gear and the third bevel gear.

[0013] Preferably, the cutter disc is driven to rotate by the main shaft, the first bevel gear is sleeved and fixed on the main shaft, the third bevel gear is sleeved on the outside of the main shaft, the first bevel gear, the second bevel gear and the third bevel gear are located in a gear cavity composed of the outer cylinder, the main shaft and the stirring frame, the water injection pipe is provided with an auxiliary flow channel extending to the gear cavity, and the cleaning flow channel is connected to the gear cavity through a one-way valve.

[0014] Preferably, the slurry balance pipe jacking machine is further provided with a slurry pump, and the inlet end of the slurry pump is connected to the slurry mixing bin.

[0015] The mud-water balanced pipe jacking machine of the present invention has the following beneficial technical effects: 1. In the present invention, a plurality of flaps are provided, and cutter heads are provided on both sides of each flap. When the mud cake is formed on one side of the flap during operation, causing the working efficiency of the mud-water balanced pipe jacking machine to decrease, the flap can be turned in the window to rotate the cutter head on the side with the mud cake into the mud-water mixing chamber, and the other side of the flap is rotated out, so as to switch to the cutter head on the other side to continue working, thereby reducing the influence of the mud cake formation on the working efficiency and improving the working efficiency of the mud-water balanced pipe jacking machine.

[0016] 2. In the present invention, a cleaning plate is provided on the stirring frame, and the stirring frame drives the cleaning plate to rotate relative to the flap to clean the mud cake on the surface of the cutter head and the flap, thereby cleaning the side of the cutter head. At the same time, a cleaning flow channel and a water spray hole are provided in the stirring frame. The high-pressure water sprayed from the water spray hole can flush the gaps between the cutter heads, thereby improving the cleaning quality and achieving the effect of online cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional view of the mud-water balanced pipe jacking machine in this embodiment; Figure 2 Schematic diagram of the internal structure of the mud-water balanced pipe jacking machine in this embodiment; Figure 3 Schematic diagram of the cross-sectional structure of the slurry-water balanced pipe jacking machine of this embodiment; Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along the AA direction; Figure 5 Schematic diagram of the partial structure of the connection between the control disk and the stirring frame in this embodiment; Figure 6 Schematic diagram of the partial structure of the connection between the stirring frame and the flap in this embodiment; Figure 7 This is a schematic diagram of the partial structure of the connection between the flap, the cutter head and the control disc in this embodiment; Figure 8 Schematic diagram of the structure of the control panel in this embodiment; Figure 9 Schematic diagram of the structure of the flap in this embodiment. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0019] Combine Figures 1 to 9 As shown, the mud-water balanced pipe jacking machine of this embodiment includes an outer cylinder 1, a cutterhead 2, and a flap 3. The cutterhead 2 is rotatably arranged at one end of the outer cylinder 1, and a mud-water mixing chamber 4 is provided between the cutterhead 2 and the outer cylinder 1. Six windows 5 are provided on the cutterhead 2, and the six windows 5 are spaced apart along the circumferential direction of the cutterhead 2. The six flaps 3 are rotatably arranged in the six windows 5 respectively. A plurality of cutter heads 6 are provided on both sides of each flap 3. The flap 3 can rotate with the cutterhead 2 and can be flipped relative to the cutterhead 2 in the corresponding window 5. The cutter head 6 on one side is located outside the cutterhead 2 for cutting, and the cutter head 6 on the other side is located in the mud-water mixing chamber 4. The windows 5 keep the mud-water mixing chamber 4 connected to the outside.

[0020] In the slurry balance pipe jacking machine of this embodiment, multiple flaps are provided and cutter heads are provided on both sides of the flaps. Therefore, during the operation of the slurry balance pipe jacking machine, if a mud cake is formed on one side of the flap, causing the working efficiency of the slurry balance pipe jacking machine to decrease, the flap can be flipped in the window to rotate the cutter head with the mud cake on the side into the mud-water mixing bin, and the other side of the flap is turned out, so as to switch to the cutter head on the other side to continue working, thereby reducing the influence of mud cake formation on the working efficiency and improving the working efficiency of the slurry balance pipe jacking machine.

[0021] Combine Figure 1 、 Figure 7 and Figure 9 As shown, in the slurry balance pipe jacking machine of this embodiment, the window 5 adopts a fan-shaped design, and the flap 3 adopts a half-fan-shaped design similar to a triangle, so that the flap 3 can be flipped back and forth in the window 5 while keeping the window 5 connecting the mud and water mixing chamber 4 with the outside world, without affecting the normal operation of the slurry balance pipe jacking machine.

[0022] Combine Figures 3 to 8 As shown, the slurry-water balanced pipe jacking machine of this embodiment is further provided with a control disk 7. The control disk 7 is rotatably mounted with the cutterhead 2 and is provided with a control track. A flip pin 8 is provided at one end of the flap 3. The flip pin 8 is eccentrically positioned relative to the rotation axis of the flap 3 with respect to the window 5 and is slidably mounted on the control track. The control disk 7 can rotate relative to the cutterhead 2 to drive the flip pin 8 to move relative to the control track, thereby driving the flap 3 to rotate.

[0023] In this embodiment, by providing a control disk that can rotate relative to the cutter disc, and connecting the control track on the control disk with the flip pin eccentrically set on the flap, the rotation control of the control disk can be used to achieve rotation control of the flap, thereby achieving switching of the cutter heads on both sides of the flap.

[0024] Combine Figure 8 As shown, in the mud-water balanced pipe jacking machine of this embodiment, the control track specifically includes a first track 9, a second track 10, a third track 11 and a limit track 12, wherein the first track 9, the second track 10 and the third track 11 are sequentially connected to form a Y-shaped structure, the limit track 12 is arranged along the circumferential direction of the control disk 7, and the free ends of the first track 9 and the third track 11 are both connected to the adjacent limit track 12. At this time, when the flip pin 8 is located at the limit track 12, the flap 3 is in the working state, that is, Figure 1 and Figure 7 The cutting heads on both sides of the flap 3 are respectively located on both sides of the window 5. In the process of the flip pin 8 entering the first track 9 along the limiting track 12 and entering the third track 11 through the second track 10, and in the process of entering the third track 11 along the limiting track 12 and entering the first track 9 through the second track 10, the flip plate 3 can be driven to flip 180 degrees, and after the flip pin 8 enters the limiting track 12 again, the flap 3 re-enters the working state.

[0025] In this embodiment, by designing the control track to be composed of a first track, a second track, a third track and a limit track, the flip pin can be transferred between the limit tracks on both sides of the first track, the second track and the third track during the unidirectional rotation of the control disk relative to the flip pin, and the flip plate can be flipped 180 degrees, thereby realizing the switching operation of the cutter heads on both sides of the flip plate.

[0026] In this embodiment, in view of the design of six windows and six flaps, six groups of corresponding first tracks, second tracks and third tracks and corresponding limit tracks are set on the control panel, so as to realize the reciprocating flipping control of the six flaps.

[0027] Combine Figure 4 and Figure 7 As shown, in the slurry-water balanced pipe jacking machine of this embodiment, a push rod 13 is further provided. One end of the push rod 13 is connected to the cutterhead 2, and the other end of the push rod 13 is connected to the control disk 7. The push rod 13 can reciprocate and extend to push the control disk 7 to reciprocate relative to the cutterhead 2, thereby controlling the reciprocating rotation of the flap.

[0028] Combine Figure 2 and Figure 3As shown, the slurry-water balanced pipe jacking machine of this embodiment is also equipped with a stirring frame 14 and a water injection pipe 15. The stirring frame 14 is rotatably mounted in the slurry-water mixing chamber 4, and the water inlet 29 of the water injection pipe 15 extends into the slurry-water mixing chamber 4. Water can be injected into the slurry-water mixing chamber using the water injection pipe, and then the stirring frame can be used to mix the water with the stones and mud blocks that enter through the window to form a slurry. The stirring frame 14 is equipped with a plurality of stirring rods 28 spaced apart, so that the stirring rods 28 can be used to mix and stir the stones, mud blocks, and water in the slurry-water mixing chamber.

[0029] Combine Figure 3 、 Figure 5 and Figure 6 As shown, in the mud-water balanced pipe jacking machine of this embodiment, a cleaning plate 16 is further provided on the stirring frame 14. The cleaning plate 16 is located on the side of the stirring frame 14 facing the window 5, that is, the side away from the stirring rod 28, and extends between the multiple cutter heads 6 located on one side of the mud-water mixing chamber 4 in the flap 3. The cleaning plate 16 can rotate relative to the cutter heads 6.

[0030] At this time, during the working process of the flap rotating with the cutter disc, the cleaning plate and the cutter head can be rotated relative to each other, and the cleaning plate can be used to scrape and clean the mud cake between the cutter heads and the surface of the flap, thereby realizing online cleaning operation of the cutter head and the surface of the flap, so as to facilitate the subsequent flipping of the flap again and switching the cutter head to work.

[0031] Combine Figure 3 As shown, in the mud-water balancing jacking pipe of this embodiment, a cleaning flow channel 17 is further provided. The cleaning flow channel 17 is connected to the cleaning water source and extends to the cleaning plate 16, and the end of the cleaning flow channel 17 is provided with a water spray hole 18 facing the cutter head 6.

[0032] In this embodiment, a cleaning flow channel is provided and extended to the cleaning plate, so that clean water can be directed to spray onto the cutter head during the mud cake cleaning process, thereby achieving high-pressure flushing and cleaning of the cutter head and improving the cleaning quality and effect.

[0033] Combine Figure 3 As shown, in the slurry balanced pipe jacking machine of this embodiment, a first bevel gear 19, a second bevel gear 20 and a third bevel gear 21 are further provided. Among them, the first bevel gear 19 is coaxially fixedly connected to the cutter head 2, the second bevel gear 20 is rotatably arranged on the outer cylinder 1, and the third bevel gear 21 is fixedly connected to the stirring frame 14 and is coaxially arranged with the first bevel gear 19. The second bevel gear 20 is located between the first bevel gear 19 and the third bevel gear 21 and is meshed with the first bevel gear 19 and the third bevel gear 21 at the same time.

[0034] In this embodiment, by arranging the first bevel gear, the second bevel gear and the third bevel gear between the cutter disc and the stirring frame, the cutter disc can drive the stirring frame to rotate, and the stirring frame and the cutter disc can rotate in opposite directions, thereby realizing the stirring operation of the stirring frame and the cleaning operation of the flap and the blade head.

[0035] according to Figure 3 As shown, in the mud-water balanced pipe jacking machine of this embodiment, the cutter disc 2 is driven to rotate by the main shaft 22, the main shaft 22 is connected to the motor 23, the first bevel gear 19 is sleeved and fixed on the main shaft 22, the stirring frame 14 and the third bevel gear 21 are sleeved on the outside of the main shaft 22, the first bevel gear 19, the second bevel gear 20 and the third bevel gear 21 are located in the gear cavity 24 composed of the outer cylinder 1, the main shaft 22 and the stirring frame 14, the water injection pipe 15 is provided with an auxiliary flow channel 25 extending to the gear cavity 24, and the cleaning flow channel 17 is connected to the gear cavity 24 through a one-way valve 26. At this time, when the cutter disc and the stirring frame are driven by the main shaft to rotate in opposite directions, clean water can be smoothly introduced into the cleaning plate through the water injection pipe through the one-way valve and the gear cavity to achieve online cleaning operations on the cutter head and the flap.

[0036] Combine Figure 3 As shown, in the slurry balanced pipe jacking machine of this embodiment, a slurry pump 27 is further provided, and the inlet end of the slurry pump 27 is connected to the slurry mixing chamber 4, so as to realize the extraction and discharge of the slurry in the slurry mixing chamber 4.

[0037] Combine Figures 1 to 9 As shown, the working process of the mud-water balanced pipe jacking machine in this embodiment is as follows: When the slurry pipe jacking machine of this embodiment is used for construction, clean water is introduced into the slurry mixing chamber 4 through the water inlet 29 via the water injection pipe 15, the motor 23 is started, and the cutter head 2 is driven to rotate via the main shaft 22. At the same time, the slurry pipe jacking machine is controlled to move forward in the horizontal direction. The rotation of the cutter head 2 drives the cutter head 6 on the flap 3 to cut stones and mud blocks, and the stones and mud blocks pass through the window 5 into the slurry mixing chamber 4. The main shaft 22 simultaneously drives the first bevel gear 19 to rotate. The first bevel gear 19 drives the third bevel gear 21 to rotate in the opposite direction via the second bevel gear 20. The third bevel gear 21 drives the stirring frame 14 to rotate in the opposite direction relative to the cutter head 2. The stirring frame 14 then drives the stirring rod 28 to stir the clean water, stones and mud blocks in the slurry mixing chamber 4. The slurry pump 27 is started to pump out the mud and water in the slurry mixing chamber 4, thereby realizing the continuous forward movement of the slurry pipe jacking machine for construction.

[0038] During the operation of the slurry balance pipe jacking machine, when a large amount of mud cakes are formed near the cutter head 6 in the working state, causing the working efficiency of the slurry balance pipe jacking machine to decrease, it is in the state of Figure 1When the cutter head 6 in the position shown forms a large amount of mud cakes around it due to the cutting of stones and mud blocks, first, the control motor 23 is stopped, so that the cutter head 2 and the stirring frame 14 both stop rotating, wherein the stirring rod 28 on the stirring frame 14 is stopped at a position staggered with the window 5, and the control push rod 13 is retracted, driving the control disc 7 to rotate relative to the cutter head 2, so that the flip pin 8 slides relatively along the limit track 12, and the flap 3 remains stationary at this time. When the flip pin 8 moves into the third track 11, the flip pin 8 starts to rotate with the flap 3, so that the flap 3 is moved to the mud-water mixture. The first track 9 is used to move the first and second tracks 10, 12 and 13, respectively, and the first track 9 is used to move the first and second tracks 10. When the first track 9 is moved and the second track 9 is moved, the first and second tracks 10 are used to move the first and second tracks 13. When the first track 9 is moved and the second track 9 is moved, the first and second tracks 10 are used to move the second and second tracks 13. When the first track 9 is moved and the second track 9 is moved, the first and second tracks 10 are used to move the second and second tracks 13. Afterwards, the starting motor 23 drives the cutter disc 2 and the mixing frame 14 to rotate in the opposite direction through the main shaft 22. On the one hand, the cutter disc 2 drives the cutter head 6 facing outward to cut stones and mud blocks, and then cooperates with the jacking equipment to enable the mud-water balanced pipe jacking machine to continue to work normally. On the other hand, the opposite rotation between the cutter disc 2 and the mixing frame 14 causes the cleaning plate 16 on the mixing frame 14 to clean the cutter head 6 on the side of the flap 3 facing the mud-water mixing bin 4. The clean water in the water injection pipe 15 flows into the gear cavity 24 through the auxiliary flow channel 25, and then enters the cleaning flow channel 17 through the one-way valve 26 and is sprayed out through the water spray hole 18, performing high-pressure water spraying on the surface of the flap 3 and the gap between the cutter heads 6, thereby realizing online cleaning of the flap 3 and the cutter heads 6.

[0039] Similarly, when the slurry-water balanced pipe jacking machine is working, a large amount of mud cakes are formed again near the cutter head 6 in the working state, causing the working efficiency of the slurry-water balanced pipe jacking machine to decrease. Repeat the above operation, control the push rod 13 to extend and make the control disc 7 rotate in the opposite direction relative to the cutter disc 2, so that the flap 3 can complete the reverse 180-degree flip, thereby completing the switching of the cutter heads 6 on both sides, so that the slurry-water balanced pipe jacking machine can continue to work normally.

Claims

1. A slurry balance pipe jacking machine, characterized in that: It includes an outer cylinder, a cutter disc and a flap; the cutter disc is rotatably arranged on the outer cylinder, a mud-water mixing chamber is provided between the cutter disc and the outer cylinder, a plurality of windows are provided on the cutter disc, and the plurality of windows are spaced apart along the circumferential direction of the cutter disc; the flap is rotatably arranged on the window, and a cutter head is provided on both sides of the flap, the flap can rotate with the cutter disc, and the flap can be flipped relative to the cutter disc in the window, so that the cutter head on one side is located outside the cutter disc, and the cutter head on the other side is located in the mud-water mixing chamber, and the window keeps the mud-water mixing chamber connected to the outside.

2. The slurry balanced pipe jacking machine according to claim 1, characterized in that: The slurry-water balanced pipe jacking machine is further provided with a control disk; the control disk is rotatably arranged with the cutter disc, and a control track is provided on the control disk; a flip pin is provided at one end of the flap, the flip pin and the flap are eccentrically arranged relative to the rotating shaft of the window, and the flip pin is slidably arranged on the control track; The control disc can rotate relative to the cutter disc to drive the flip pin to move relative to the control track to drive the flap to rotate.

3. The slurry balanced pipe jacking machine according to claim 2, characterized in that: The control track includes a first track, a second track, a third track and a limiting track. The first track, the second track and the third track are connected to form a Y-shaped structure. The limiting track is arranged along the circumferential direction of the control disk. The free end of the first track and the free end of the third track are both connected to the adjacent limiting track. The flip pin can drive the flip plate to flip 180 degrees during the process of entering the third track from the first track via the second track and entering the first track from the third track via the second track.

4. The slurry balanced pipe jacking machine according to claim 2, characterized in that: The slurry-water balanced pipe jacking machine is also provided with a push rod; one end of the push rod is connected to the cutter disc, and the other end of the push rod is connected to the control disc, and the push rod can push the control disc to rotate back and forth relative to the cutter disc.

5. The slurry balanced pipe jacking machine according to claim 1, characterized in that: The mud-water balanced pipe jacking machine is also provided with a stirring frame and a water injection pipe; the stirring frame is rotatably arranged on the mud-water mixing bin, and the water inlet of the water injection pipe extends to the mud-water mixing bin.

6. The slurry balanced pipe jacking machine according to claim 5, characterized in that: A cleaning plate is provided on the stirring frame; the cleaning plate is located on the side of the stirring frame facing the window, and the cleaning plate extends between the multiple cutter heads on one side of the mud-water mixing bin in the flap and can rotate relative to the cutter heads.

7. The slurry balanced pipe jacking machine according to claim 6, characterized in that: The mud-water balance jacking pipe is also provided with a cleaning flow channel; the cleaning flow channel extends to the cleaning plate, and the end of the cleaning flow channel is provided with a water spray hole facing the cutter head.

8. The slurry balanced pipe jacking machine according to claim 7, characterized in that: The slurry balancing pipe jacking machine is also provided with a first bevel gear, a second bevel gear and a third bevel gear; the first bevel gear is coaxially fixedly connected to the cutter disc, the second bevel gear is rotatably set on the outer cylinder, the third bevel gear is fixedly connected to the stirring frame and is coaxially arranged with the first bevel gear, the second bevel gear is located between the first bevel gear and the third bevel gear and is simultaneously meshed with the first bevel gear and the third bevel gear.

9. The slurry balanced pipe jacking machine according to claim 8, characterized in that: The cutter disc is driven to rotate by the main shaft, the first bevel gear is sleeved and fixed on the main shaft, the third bevel gear is sleeved on the outside of the main shaft, the first bevel gear, the second bevel gear and the third bevel gear are located in a gear cavity composed of the outer cylinder, the main shaft and the stirring frame, the water injection pipe is provided with an auxiliary flow channel extending to the gear cavity, and the cleaning flow channel is connected to the gear cavity through a one-way valve.

10. The slurry balanced pipe jacking machine according to claim 1, characterized in that: The slurry-water balanced pipe jacking machine is also provided with a slurry-water pump, and the inlet end of the slurry-water pump is communicated with the slurry-water mixing bin.

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