A shield machine slag conveying device for water-rich soft strata

Abstract

The present invention provides a shield machine slag conveying device for water-rich soft strata, which solves the problems of difficulty in conveying mud and water, excessive area occupied by the slag pit, difficulty in cleaning and clogging of the slag filter plate, and waste of transportation space. It includes a screw conveyor, and the slag falls from the discharge port of the screw conveyor into the filter box, is filtered by the upper inclined plate, and then falls into the lower inclined plate for secondary filtration. At the same time, a toggle shaft is provided in the filter box to rotate and drive the fluctuating plate to push away large pieces of slag so that the filter plate will not be blocked by large pieces of slag. A cleaning brush is provided near the filter plate in the mud and water tank to prevent the filter holes of the filter plate from being blocked by small pieces of slag. A high-pressure water gun is provided in the mud and water tank aimed at the filter plate to prevent the filter plate from being blocked by silt. The filtered mud and water are discharged by a mud and water pump, and the filtered slag is crushed by a crushing device and then transported to the slag truck via a conveyor belt. The present invention can comprehensively clean the filter plate and handle blockages, and separate and crush large pieces of slag from mud and water.

Description

Technical Field

[0001] The invention relates to the technical field of slag transportation, in particular to a shield machine slag transportation device for use in water-rich soft strata. Background Art

[0002] When excavating a tunnel, an earth pressure balance shield machine often uses a screw conveyor and a conveyor belt to transport the excavated soil. However, the shield machine is very likely to encounter water-rich strata when excavating the tunnel. In this case, due to the high water content of the excavated soil, the belt conveyor cannot transport a large amount of water, making it difficult to treat the wastewater of the shield machine. If the problem is solved by filtering, it is impossible to achieve the continuity of the shield excavation work and clean the clogged filter holes.

[0003] Being transported to the slag pit requires a lot of ground space, making it difficult to arrange and place other facilities perfectly;

[0004] In the current slag transportation process, large pieces of slag, small pieces of slag and muddy water are mixed together for transportation, which greatly wastes transportation space.

[0005] Therefore, the present invention provides a shield machine slag conveying device for water-rich soft strata to solve the above problems. Summary of the Invention

[0006] In view of the above situation, in order to overcome the defects of the existing technology, the present invention provides a shield machine slag conveying device for water-rich soft strata, which effectively solves the problems of filtration and cleaning during the transportation of slag in water-rich strata, the inability of the conveyor belt to transport sludge water, the large space occupied by the ground slag pool, and the mixing of large and small slag blocks occupying the transportation space.

[0007] The top of the filter box is provided with a lifting mechanism, and the lifting mechanism is connected with the lifting mechanism by the lifting mechanism, and the lifting mechanism is connected with the lifting mechanism of the lifting mechanism. The filter box is provided with an air pressure box, and each of the air pressure boxes is provided with a telescopic rod connected to the two push plates respectively, and a filter plate is installed at the upper end of the front side surface of the filter box, and the filter plate has two through slots arranged up and down and through which the tips of the upper inclined plate and the lower inclined plate can pass. A mud and water box with an opening on the rear side is fixedly installed on the front side surface of the filter box, and two toggle shafts located on the rear side of the filter plate and respectively located above the upper inclined plate and the lower inclined plate are rotatably installed between the left and right inner walls of the filter box, and a plurality of toggle plates are fixedly installed on the outer side of each of the toggle shafts, and a plurality of cleaning brushes located on the front side of the filter plate are rotatably installed between the left and right inner walls of the mud and water box, and a plurality of high-pressure water guns facing the filter plates are installed on the top surface of the mud and water tank, a crushing device located below the lower inclined plate is installed inside the filter box, and a conveyor belt located below the crushing device is installed inside the filter box.

[0008] Preferably, the sliding control device includes an upper annular plate installed on the upper surface of the flat plate located in the cavity of the upper inclined plate, two upper turntables arranged front and back and surrounded by the upper annular plate are installed on the upper surface of the flat plate located above, an upper fixed bevel gear is coaxially fixedly installed above the upper turntable located on the rear side, a sliding motor is installed on the left outer wall of the filter box, the rotating shaft of the sliding motor is fixedly connected to an upper connecting rod passing through an annular hole, and the other end of the upper connecting rod is coaxially fixedly connected to an upper transmission bevel gear meshing with the upper fixed bevel gear, each of the upper The outer side surface of the turntable is equipped with multiple evenly distributed upper ratchets, each of which is kept springing outward by a spring steel sheet and the outer end points in a counterclockwise direction. Two upper gears are installed on the upper surface of the flat plate located above, which are respectively located on the left and right sides of the rear end of the upper annular plate. Teeth that mesh with the upper gears are fixedly connected to the left and right outer sides of the upper annular plate. The shaft of the upper gear is fixedly connected to the flat plate, and racks are fixedly installed on the left and right sides of the cavity in the upper inclined plate, and the two upper gears are respectively meshed with the racks located in the upper inclined plate.

[0009] Preferably, the sliding control device also includes a lower annular plate installed on the upper surface of the flat plate located in the cavity of the lower inclined plate, two lower rotating plates arranged front and back and surrounded by the lower annular plate are installed on the upper surface of the flat plate located below, a lower fixed bevel gear is coaxially fixedly installed above the lower rotating plate located on the rear side, a lower connecting rod passing through an annular hole and connected to the upper connecting rod through a sprocket transmission is installed in the lower inclined plate, the lower connecting rod is coaxially fixedly connected to a lower transmission bevel gear located in the lower inclined plate and meshing with the lower fixed bevel gear, each of the lower rotating plates outside The side surfaces are equipped with multiple evenly distributed lower ratchets, each of which is kept springing outward by a spring steel sheet and the outer end points in a clockwise direction. Two lower gears are installed on the upper surface of the flat plate located below, which are respectively located on the left and right sides of the rear end of the lower annular disk. The left and right outer surfaces of the lower annular disk are fixedly connected with teeth that mesh with the lower gears. The shaft of the lower gear is fixedly connected to the flat plate, and racks are respectively fixedly installed on the left and right sides of the cavity in the lower inclined plate, and the two lower gears are respectively meshed with the racks located in the lower inclined plate.

[0010] Preferably, the toggle shaft located above is coaxially connected to a cleaning motor, the two toggle shafts are connected through a sprocket transmission, each of the cleaning brushes is coaxially fixedly connected to a cleaning gear located on the left side of the mud and water tank and meshing with each other, and the cleaning motor and the topmost cleaning brush are connected through a sprocket transmission.

[0011] Preferably, a rubber strip is installed on the lower side of each push plate, and multiple compression springs are installed between each rubber strip and the push plate above it. The top surface of the upper inclined plate is in close contact with the rubber strip above it, and the top surface of the lower inclined plate is in close contact with the rubber strip above it.

[0012] Preferably, the crushing device includes two front-to-back arranged twisted shafts rotatably installed between the left and right inner walls of the filter box, a guide plate is fixedly installed on the front inner wall of the filter box, which is inclined and has its lower end located above the two twisted shafts, and a plurality of circumferentially distributed crushing columns are installed on the outer surface of each twisted shaft, and the two twisted shafts are coaxially fixedly connected to a crushing gear, and the two crushing gears are meshed with each other.

[0013] Preferably, the driving shaft of the conveyor belt is coaxially connected to the conveying motor located in the filter box, the rotating shaft of the conveying motor is coaxially connected to the conveying bevel gear, a conveying shaft is rotatably installed on the left side of the filter box, the conveying shaft is coaxially fixedly connected to a transfer bevel gear meshing with the conveying bevel gear, and the conveying shaft is connected to the crushing gear through a sprocket transmission.

[0014] Preferably, a mud water pump connected by a pipeline is installed at the lower left front position of the mud water tank.

[0015] Preferably, a power motor is coaxially mounted on the top of the screw conveyor.

[0016] Compared with the prior art, the present invention filters the slag discharged from the screw conveyor onto the upper inclined plate of the filter box through a filter plate to separate the muddy water in the slag from some large stone blocks. The filtered muddy water is directly discharged into the muddy water treatment system on the ground through a muddy water pump. The filter plate is cleaned by a toggle shaft, a cleaning brush, and a high-pressure water gun. The large pieces of slag filtered on the upper inclined plate fall onto the lower inclined plate for secondary filtration, while the screw conveyor continuously discharges the slag. The small amount of slag filtered on the lower inclined plate falls into a crushing device. The crushed small pieces of slag fall onto a conveyor belt and are transported to a slag truck. This not only avoids the problem of the conveyor belt being unable to transport muddy water, but also the small amount of slag remaining after filtration greatly reduces the area of ​​the slag pit, reduces the difficulty of design and layout during ground installation, saves a lot of transportation space, and provides a cleaning and treatment solution for various clogging situations of the filter holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0018] Figure 2 It is a left side cross-sectional schematic diagram of the present invention.

[0019] Figure 3 Schematic diagram of the upper inclined plate inner sliding control device of the present invention.

[0020] Figure 4 Schematic diagram of the lower inclined plate inner sliding control device of the present invention.

[0021] Figure 5 This is the left-side gear motor distribution diagram of the present invention.

[0022] Figure 6 For the present invention Figure 2 Enlarged view of point A in the middle.

[0023] Figure 7 For the present invention Figure 2 Enlarged view of point B in the middle.

[0024] Figure 8 For the present invention Figure 5 Enlarged view of point C in the middle.

[0025] Figure 9 For the present invention Figure 3 Enlarged view of point D in the middle.

[0026] Figure 10 For the present invention Figure 4 Enlarged view of point E in the middle. DETAILED DESCRIPTION

[0027] The above and other technical contents, features and effects of the present invention are described below with reference to the attached Figures 1 to 10 The detailed description of the embodiments will clearly show that the structural contents mentioned in the following embodiments are all based on the accompanying drawings.

[0028] Various exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

[0029] Embodiment 1, the present invention is a shield machine slag conveying device for water-rich soft strata, including an inclined screw conveyor 1, the screw conveyor 1 conveys the slag to the top, and a filter box 2 fixedly connected to the screw conveyor 1 is placed below the discharge port at the top of the screw conveyor 1, and two chutes 5 arranged up and down are opened on the rear side surface of the filter box 2, an upper inclined plate 3 is slidably installed in the upper chute 5, and a lower inclined plate 4 is slidably installed in the lower chute 5, and the slag filtered on the upper inclined plate 3 will be discharged and fall onto the lower inclined plate 4, and the upper inclined plate 3 and the lower inclined plate 4 can both slide back and forth through the chute 5, and a cavity 41 is opened in the upper inclined plate 3 and the lower inclined plate 4, and two chutes 5 are fixedly installed on the rear side surface inside the filter box 2. A flat plate 15 is respectively located in the two cavities 41, and a sliding control device 6 is installed on each of the two flat plates 15 and located in the cavity 41. The sliding control device 6 can respectively control the upper inclined plate 3 and the lower inclined plate 4 to slide forward and backward. When the upper inclined plate 3 and the lower inclined plate 4 slide forward and backward, the flat plate 15 does not move, and the sliding control device 6 can only control the upper inclined plate 3 or the lower inclined plate 4 at the same time. An annular hole 49 is opened on the left side of the upper inclined plate 3 and the lower inclined plate 4. A pressure sensor 48 is installed on the upper inclined plate 3. A push plate 7 is respectively installed on the inner wall of the rear side of the filter box 2, which is located above the upper inclined plate 3 and the lower inclined plate 4. Two air pressure boxes 36 are fixedly installed on the rear side of the filter box 2. The air pressure box 36 provides power for the movement of the push plate 7. Each of the air pressure boxes 36 are each equipped with a telescopic rod 35 fixedly connected to the rear side surfaces of the two push plates 7. A filter plate 8 is installed at the upper end of the front side surface of the filter box 2. The slag dropped from the discharge port of the screw conveyor 1 falls on the upper inclined plate 3. The slag on the upper inclined plate 3 naturally rolls down to the vicinity of the filter plate 8 under the action of gravity, and the mud and water therein are filtered out by the filter plate 8. When the slag on the upper inclined plate 3 reaches a certain weight, the pressure sensor 48 sends a signal. After receiving the signal, the intelligent system commands the sliding control device 6 to work. The sliding control device 6 moves the upper inclined plate 3 backward. At this time, the lower inclined plate 4 remains in its original position and does not move. The slag dropped from the screw conveyor 1 and the slag on the upper inclined plate 3 fall on the lower inclined plate 4 together. When the upper inclined plate 3 moves backward to the limit, it is located at The upper air pressure box 36 moves the push plate 7 connected thereto forward through the telescopic rod 35, pushing the slag blocks that have not naturally rolled down from the upper inclined plate 3 under the action of gravity onto the lower inclined plate 4, and then the upper inclined plate 3 moves forward to reset, and the slag on the lower inclined plate 4 is filtered twice through the filter plate 8, and then the upper inclined plate 3 remains in place and continues to receive the slag dropped by the screw conveyor 1. The sliding control device 6 controls the lower inclined plate 4 to move backward, and the slag blocks after the secondary filtration roll down under the action of gravity. When the lower inclined plate 4 moves backward to the limit, the air pressure box 36 located below moves the push plate 7 connected thereto forward through the telescopic rod 35, pushing the slag blocks that have not naturally rolled down from the lower inclined plate 4 under the action of gravity to the bottom of the lower inclined plate 4.The filter plate 8 is provided with two through grooves 10 arranged up and down and for the tips of the upper inclined plate 3 and the lower inclined plate 4 to pass through. The tip of the upper inclined plate 3 passes through the through groove 10 to prevent the filtered muddy water from flowing down along the filter plate 8 and falling onto the lower inclined plate 4. The tip of the lower inclined plate 4 passes through the through groove 10 to prevent the muddy water from remaining and accumulating in the filter hole, causing silt blockage. A mud water box 9 with an opening on the rear side is fixedly installed on the front side of the filter box 2. The slag on the upper inclined plate 3 and the lower inclined plate 4 is filtered by the filter plate 8, and the muddy water passes through the filter plate 8 flows into the mud water tank 9, and the slag blocks remain on the upper inclined plate 3 and the lower inclined plate 4. Two toggle shafts 27 are rotatably installed between the left and right inner walls of the filter box 2, which are located on the rear side of the filter plate 8 and respectively above the upper inclined plate 3 and the lower inclined plate 4. A plurality of toggle plates 28 are fixedly installed on the outer side of each toggle shaft 27. When the toggle shaft 27 rotates, the toggle plate 28 will push away the large pieces of slag that fall near the filter plate 8, preventing the slag blocks from silting up and blocking the rear of the filter plate 8, so that the mud and water on the upper inclined plate 3 and the lower inclined plate 4 cannot flow into the mud water tank 9. A plurality of cleaning brushes 30 are rotatably installed between the left and right inner walls of the mud and water tank 9 and are located on the front side of the filter plate 8. The bristles of the cleaning brush 30 are made of elastic material. When the cleaning brush 30 rotates, the bristles contact the filter plate 8 and produce elastic deformation. As the cleaning brush 30 continues to rotate, the ends of the bristles bounce into the filter holes of the filter plate 8, which will bounce off the small pieces of debris blocking the filter holes. A plurality of high-pressure water guns 32 facing the filter plate 8 are installed on the top surface of the mud and water tank 9. The high-pressure water guns 32 will clean and disperse the silt blocking the filter holes on the filter plate 8, and then Under the action of gravity, the mud flows into the mud water tank 9. The filter box 2 is equipped with a crushing device 11 located below the lower inclined plate 4. The mud blocks filtered on the upper inclined plate 3 fall onto the lower inclined plate 4. The mud blocks filtered on the lower inclined plate 4 fall into the crushing device 11. The crushing device 11 crushes the filtered large mud blocks into small pieces. The filter box 2 is equipped with a conveyor belt 13 located below the crushing device 11. The small pieces of mud crushed by the crushing device 11 fall onto the conveyor belt 13 under the action of gravity and are transported to the mud truck by the conveyor belt 13.

[0030] During use, the slag falls from the discharge port of the screw conveyor 1 onto the upper inclined plate 3 in the filter box 2 for preliminary filtration. When the weight of the slag reaches a certain level, the pressure sensor 48 sends a signal, and the sliding control device 6 controls the upper inclined plate 3 to move backward. After the upper inclined plate 3 stops moving, the push plate 7 above it moves forward. The slag rolls onto the lower inclined plate 4 under the action of gravity and the push plate 7. The sliding control system 6 controls the upper inclined plate 3 to reset, and the lower inclined plate 4 and the push plate 7 below repeat the above actions. The filtered slag blocks are crushed by the crushing device 11 and fall onto the conveyor belt 13 and transported to the slag truck, and then transported to the slag pit. During the process, the toggle shaft 27 and the cleaning brush 30 continue to work, and the high-pressure water gun 32 works intermittently to prevent and deal with the blockage of the filter plate.

[0031] Embodiment 2, on the basis of embodiment 1, the sliding control device 6 includes an upper annular disk 14 installed on the upper surface of the flat plate 15 located in the cavity 41 of the upper inclined plate 3, and two upper turntables 16 arranged front and back and surrounded by the upper annular disk 14 are installed on the upper surface of the flat plate 15 located above. The upper turntable 16 can drive the upper annular disk 14 to rotate counterclockwise in one direction, and an upper fixed bevel gear 17 is coaxially fixedly installed above the upper turntable 16 located on the rear side. When the upper fixed bevel gear 17 rotates, it drives the upper turntable 16 to rotate synchronously. A sliding motor 19 is installed on the left outer wall of the filter box 2, and the rotating shaft of the sliding motor 19 is fixedly connected to an upper connecting rod 51 passing through the annular hole 49, and the other end of the upper connecting rod 51 is coaxially fixedly connected to the upper fixed bevel gear 17. When the upper transmission bevel gear 18 engaged with the gear 17 and the rotating shaft of the sliding motor 19 rotate forward, the upper transmission bevel gear 18 rotates synchronously, and the upper fixed bevel gear 17 engaged with the upper transmission bevel gear 18 rotates counterclockwise to drive the upper turntable 16 to rotate counterclockwise. Similarly, when the rotating shaft of the sliding motor 19 rotates reversely, it drives the upper turntable 16 to rotate clockwise. Each of the outer sides of the upper turntable 16 is equipped with a plurality of evenly distributed upper ratchets 20, and each of the upper ratchets 20 is kept always bounced outward by a spring steel sheet and the outer end points in the counterclockwise direction. When the upper turntable 16 rotates counterclockwise, the top of the upper ratchet 20 is pressed against the oblique groove on the inner side of the upper annular disk 14, so that the upper annular disk 14 rotates counterclockwise on the flat plate 15. When the upper ratchet 20 rotates clockwise, the spring steel sheet is pressed The upper annular disk 14 is retracted and cannot drive the upper annular disk 14 to move. Two upper gears 21 are installed on the upper surface of the flat plate 15 located on the left and right sides of the rear end of the upper annular disk 14. The left and right outer surfaces of the upper annular disk 14 are fixedly connected with teeth that mesh with the upper gear 21. When the upper annular disk 14 rotates to the left tooth meshing with the left upper gear 21, the toothed part on the right side of the upper annular disk 14 just leaves the right upper gear 21. When the upper annular disk 14 rotates to the right tooth meshing with the right upper gear 21, the toothed part on the left side of the upper annular disk 14 just completely leaves the left upper gear 21. The axis of the upper gear 21 is fixedly connected to the flat plate 15. The two upper gears 21 can rotate around the axis and are located on the left and right sides of the cavity 41 in the upper inclined plate 3. Racks are fixedly installed on each of them, and the two upper gears 21 are respectively meshed with the racks located in the upper inclined plate 3. The sliding motor 19 starts working and drives the upper annular plate 14 to rotate counterclockwise. At this time, the upper annular plate 14 is meshed with the upper gear 21 located on the left, and the motion is transmitted to the rack through the upper gear 21, and the upper inclined plate 3 is driven to move backward. When the upper inclined plate 3 moves backward to the limit, the sliding motor stops working. When the push plate 7 cleans the slag on the upper inclined plate 3 and returns to its original position, the rotating shaft of the sliding motor 19 continues to rotate forward. At this time, the teeth on the left side of the upper annular plate 14 have been separated from the upper gear 21 located on the left, and the teeth on the right side of the upper annular plate 14 start to mesh with the upper gear 21 located on the right, and the motion is transmitted to the teeth on the right side through the upper gear 21.And drive the upper inclined plate 3 to reset and move forward,

[0032] Embodiment 3, on the basis of embodiment 2, the sliding control device 6 also includes a lower annular disk 22 installed on the upper surface of the flat plate 15 located in the cavity 41 of the lower inclined plate 4, the lower annular disk 22 can rotate on the flat plate 15, and two lower turntables 23 arranged front and back and surrounded by the lower annular disk 22 are installed on the upper surface of the flat plate 15 located below. The lower turntable 23 can drive the lower annular disk 22 to rotate clockwise in one direction, and a lower fixed bevel gear 24 is coaxially fixedly installed above the lower turntable 23 located on the rear side. A lower connecting rod 42 is installed in the lower inclined plate 4, which passes through the annular hole 49 and is connected to the upper connecting rod 51 through a sprocket transmission. The lower connecting rod 42 is coaxially fixedly connected to a lower transmission bevel gear 50 that meshes with the lower fixed bevel gear 24, and the sliding motor When the rotating shaft of 19 is reversed, the lower transmission bevel gear 50 rotates synchronously, and the lower fixed bevel gear 24 meshing with the lower transmission bevel gear 50 rotates clockwise to drive the lower turntable 23 to rotate clockwise. Similarly, when the rotating shaft of the sliding motor 19 rotates forward, it drives the lower turntable 23 to rotate counterclockwise. Each of the outer side surfaces of the lower turntable 23 is installed with a plurality of evenly distributed lower ratchet teeth 25. Each of the lower ratchet teeth 25 is kept always bounced outward by a spring steel sheet and the outer end points in the clockwise direction. When the lower turntable 23 rotates clockwise, the top of the lower ratchet teeth 25 is pressed against the oblique groove on the inner side of the lower annular disk 22, so that the lower annular disk 22 rotates clockwise on the flat plate 15. When the lower turntable 23 rotates counterclockwise, the spring steel sheet is compressed and cannot drive the lower annular disk 22 to move. Two lower gears 26 are installed on the upper surface of the flat plate 15, which are respectively located on the left and right sides of the rear end of the lower annular plate 22. The left and right outer surfaces of the lower annular plate 22 are fixedly connected with teeth that mesh with the lower gear 26. When the lower annular plate 22 rotates to the point where the left teeth mesh with the left lower gear 26, the part with teeth on the right side of the lower annular plate 22 just leaves the right lower gear 26. Before the lower annular plate 22 rotates to the point where its right teeth mesh with the right lower gear 26, the part with teeth on the left side of the lower annular plate 22 just completely leaves the left lower gear 26. The shaft of the lower gear 26 is fixedly connected to the flat plate 15, and the two lower gears 26 can rotate around the axis. Racks are fixedly installed on the left and right sides of the cavity 41 in the lower inclined plate 4, and the two lower gears 26 are respectively connected to the lower gears 26. The rack located in the lower inclined plate 4 is engaged. After the upper inclined plate 3 is reset, the rotating shaft of the sliding motor 19 is reversed and drives the lower annular plate 22 to rotate clockwise. At this time, the lower annular plate 22 is engaged with the lower gear 26 located on the right side, and the motion is transmitted to the rack through the lower gear 26, and the lower inclined plate 4 is driven to move backward. When the lower inclined plate 4 moves backward to the limit, the sliding motor stops working. When the push plate 7 cleans the debris on the lower inclined plate 4 and returns to its original position, the rotating shaft of the sliding motor 19 continues to reverse. At this time, the right side teeth of the lower annular plate 22 have been separated from the lower gear 26 located on the right, and the left side teeth of the lower annular plate 22 begin to mesh with the lower gear 26 located on the left side, and the motion is transmitted to the teeth on the left side through the lower gear 26, and the lower inclined plate 4 is reset and moves forward.

[0033] Example 4. On the basis of Example 1, the toggle shaft 27 located at the top is coaxially connected to a cleaning motor 29, and the two toggle shafts 27 are connected by a sprocket transmission. The cleaning motor 29 drives the two toggle shafts 27 to rotate synchronously and continuously through the sprocket. Each of the cleaning brushes 30 is coaxially fixedly connected to a cleaning gear 31 located on the left side of the mud and water tank 9 and meshing with each other. The cleaning motor 29 and the top cleaning brush 30 are connected by a sprocket transmission. The rotating shaft of the cleaning motor 29 keeps rotating continuously, and the toggle shaft 27 located at the top keeps rotating synchronously with it. The toggle shaft 27 located at the bottom keeps rotating continuously through the sprocket transmission. The cleaning brush 30 located at the top keeps rotating continuously through the sprocket transmission between the rotating shaft of the cleaning belt machine 29, thereby driving other cleaning brushes 30 meshing with it to rotate continuously.

[0034] Embodiment 5, on the basis of embodiment 1, a rubber strip 33 is installed on the lower side of each push plate 7, and a plurality of compression springs 34 are installed between each rubber strip 33 and the push plate 7 above it. The lower end of the compression spring 34 is fixedly connected to the top surface of the rubber strip 33, and the upper end is fixedly connected to the top surface inside the push plate 7. The upper end of the rubber strip 33 is located inside the push plate 7 and can slide up and down. The top surface of the upper inclined plate 3 is in close contact with the rubber strip 33 above it, and the top surface of the lower inclined plate 4 is in close contact with the rubber strip 33 above it. When the upper inclined plate 3 or the lower inclined plate 4 moves, the push plate 7 is moved under the action of the telescopic rod 35. As the push plate 7 moves forward from below, the rubber strip 33 below it keeps the bottom surface of the rubber strip 33 in close contact with its top surface at all times under the elastic force of the compression spring 34, thereby cleaning the debris and silt remaining on the upper surface of the upper inclined plate 3 or the lower inclined plate 4. When the upper inclined plate 3 or the lower inclined plate 4 moves backward to the limit, the air pressure box 36 pushes the push plate 7 forward through the telescopic rod 35, so that the push plate 7 pushes away the debris blocks that have not naturally rolled down due to gravity from the upper surface of the upper inclined plate 3 and the lower inclined plate 4. At the same time, the rubber strip 33 below cleans the small particles of debris and silt remaining on the upper surface of the upper inclined plate 3 and the lower inclined plate 4.

[0035] Example 6. On the basis of Example 1, the crushing device 11 includes two front-to-back arranged twisted shafts 37 rotatably installed between the left and right inner walls of the filter box 2. When the twisted shafts 37 rotate, the slag blocks falling between them are squeezed and crushed. A guide plate 12 is fixedly installed on the front inner wall of the filter box 2, and its lower end is located above the two twisted shafts 37. The slag blocks falling from the lower inclined plate 4 are guided to the upper part between the two twisted shafts 37 by the guide plate 12 to improve the crushing efficiency. A plurality of circumferentially distributed crushing columns 38 are installed on the outer side surface of each twisted shaft 37. The two twisted shafts 37 are coaxially fixedly connected with a crushing gear 39. The two crushing gears 39 are engaged with each other, and the crushing gear 39 rotates continuously to keep the crushing work of the twisted shaft 37 going on.

[0036] Embodiment 7, on the basis of embodiment 6, the driving shaft of the conveyor belt 13 is coaxially connected to the conveying motor 43 located in the filter box 2, and the rotating shaft of the conveying motor 43 is coaxially connected to the conveying bevel gear 44, and the conveying bevel gear 44 rotates synchronously with the driving shaft of the conveyor belt 13, and a conveying shaft 40 is rotatably installed on the left side of the filter box 2, and the conveying shaft 40 is coaxially fixedly connected to the adapter bevel gear 45 meshing with the conveying bevel gear 44, and the conveying shaft 40 is connected to the crushing gear 39 through a sprocket transmission, and the rotating shaft of the conveying motor 43 rotates continuously, driving the conveyor belt 13 to continuously transmit, and the adapter bevel gear 45 meshing with the conveying bevel gear 44 rotates continuously, so that the conveying shaft 40 coaxially fixedly connected to the adapter bevel gear 45 rotates continuously, thereby driving the crushing device to continue to operate through the sprocket transmission.

[0037] Embodiment 8, based on embodiment 1, a mud water pump 46 connected by a pipeline is installed at the lower left front position of the mud water tank 9, and the mud water pump 46 will continuously transport the mud water in the mud water tank 9 to the mud water treatment system on the ground.

[0038] Embodiment 9: Based on embodiment 1, a power motor 47 is coaxially mounted on the top of the screw conveyor 1 .

[0039] Compared to the prior art, the present invention filters the soil discharged from the screw conveyor onto the upper inclined plate of the filter box through a filter plate, thereby separating the muddy water from some large rocks and clods in the soil. The filtered muddy water is then directly discharged into the ground muddy water treatment system via a mud pump. The toggle shaft drives the toggle plate to rotate, preventing large pieces of soil from clogging the filter plate. The cleaning brush removes small rocks and clods that are blocking the filter plate pores, and a high-pressure water gun flushes some solid silt that is clogging the filter plate. The large pieces of soil filtered from the upper inclined plate fall onto the lower inclined plate for secondary filtration after reaching a certain weight, simultaneously achieving continuous soil discharge from the screw conveyor. The small amount of soil filtered from the lower inclined plate falls into a crushing device, and the crushed small pieces of soil fall onto a conveyor belt for transportation to a dump truck. This not only avoids the problem of the conveyor belt being unable to transport muddy water, but also greatly reduces the area of ​​the soil pit by the small amount of soil remaining after filtration, reducing the design and layout difficulty of ground installation, saving a lot of transportation space, and providing a cleaning solution for various filter hole blockage situations.

Claims

1. A shield machine soil conveying device for water-rich soft strata, comprising an inclined screw conveyor, characterized in that: The filter box that is fixedly connected to the screw conveyor is placed below the discharge port at the top of the screw conveyor, and two slide grooves arranged up and down are opened on the rear side surface of the filter box, and an upper inclined plate is slidably installed in the upper slide groove, and a lower inclined plate is slidably installed in the lower slide groove, and a cavity is opened in the upper and lower inclined plates. Two flat plates respectively located in the two cavities are fixedly installed on the rear side surface of the interior of the filter box, and sliding control devices located in the cavity are installed on the two flat plates. Annular holes are opened on the left sides of the upper and lower inclined plates, and a pressure sensor is installed on the upper inclined plate. Pressure sensors are installed on the inner wall of the rear side of the filter box, which are respectively located on the upper and lower inclined plates. The filter box has a push plate above the plate, and two air pressure boxes are fixedly installed on the rear side surface of the filter box, and each of the air pressure boxes is equipped with a telescopic rod fixedly connected to the rear side surfaces of the two push plates. The upper end of the front side surface of the filter box is equipped with a filter plate, and the filter plate has two through slots arranged up and down for the tips of the upper inclined plate and the lower inclined plate to pass through. A mud and water box with an opening on the rear side surface is fixedly installed on the front side surface of the filter box, and two toggle shafts located on the rear side of the filter plate and respectively above the upper inclined plate and the lower inclined plate are rotatably installed between the left and right inner walls of the filter box. A plurality of toggle plates are fixedly installed on the outer side surface of each of the toggle shafts, and a plurality of A cleaning brush is located on the front side of the filter plate, a plurality of high-pressure water guns facing the filter plate are installed on the top surface of the mud and water box, a crushing device is installed inside the filter box below the lower inclined plate, and a conveyor belt is installed inside the filter box below the crushing device; the sliding control device includes an upper annular disk installed on the upper surface of the flat plate in the cavity of the upper inclined plate, and two upper turntables arranged front and back and surrounded by the upper annular disk are installed on the upper surface of the flat plate located above, and an upper fixed bevel gear is coaxially fixed above the upper turntable located on the rear side, and a sliding motor is installed on the left outer wall of the filter box, and the rotating shaft of the sliding motor is fixedly connected to the upper connecting rod passing through the annular hole. The other end of the upper connecting rod is coaxially fixedly connected to the upper transmission bevel gear that meshes with the upper fixed bevel gear. A plurality of evenly distributed upper ratchets are installed on the outer side surface of each of the upper turntables. Each of the upper ratchets is kept always bounced outward by a spring steel sheet and the outer end points in the counterclockwise direction. Two upper gears are installed on the upper surface of the upper plate, respectively located on the left and right sides of the rear end of the upper annular plate. Teeth that mesh with the upper gear are fixedly connected on the left and right outer surfaces of the upper annular plate. The shaft of the upper gear is fixedly connected to the plate. Racks are respectively fixedly installed on the left and right sides of the cavity in the upper inclined plate. The two upper gears are respectively meshed with the racks located in the upper inclined plate.

2. The shield machine slag conveying device for water-rich soft strata according to claim 1, characterized in that: The gear train is fixedly mounted on the upper surface of the gear train, and the gear train is connected to the gear train by a toothed connection, and the toothed connection is fixedly mounted on the upper surface of the gear train.

3. The shield machine slag conveying device for water-rich soft strata according to claim 1, characterized in that: The toggle shaft located above is coaxially connected to a cleaning motor, and the two toggle shafts are connected through a sprocket transmission. Each cleaning brush is coaxially fixedly connected to a cleaning gear located on the left side of the mud and water tank and meshing with each other, and the cleaning motor and the topmost cleaning brush are connected through a sprocket transmission.

4. The shield machine slag conveying device for water-rich soft strata according to claim 1, characterized in that: A rubber strip is installed on the lower side of each push plate, and multiple compression springs are installed between each rubber strip and the push plate above it. The top surface of the upper inclined plate is in close contact with the rubber strip above it, and the top surface of the lower inclined plate is in close contact with the rubber strip above it.

5. The shield machine slag conveying device for water-rich soft strata according to claim 1, characterized in that: The crushing device includes two twisted shafts arranged in front and behind and rotatably installed between the left and right inner walls of the filter box. A guide plate is fixedly installed on the front inner wall of the filter box, which is inclined and has its lower end located above the two twisted shafts. A plurality of circumferentially distributed crushing columns are installed on the outer surface of each twisted shaft. The two twisted shafts are coaxially fixedly connected to crushing gears, and the two crushing gears are meshed with each other.

6. The shield machine slag conveying device for water-rich soft strata according to claim 5, characterized in that: The driving shaft of the conveyor belt is coaxially connected to the conveying motor located in the filter box, the rotating shaft of the conveying motor is coaxially connected to the conveying bevel gear, a conveying shaft is rotatably installed on the left side of the filter box, the conveying shaft is coaxially fixedly connected to a transfer bevel gear that meshes with the conveying bevel gear, and the conveying shaft is connected to the crushing gear through a sprocket transmission.

7. The shield machine slag conveying device for water-rich soft strata according to claim 1, characterized in that: A mud water pump connected by a pipeline is installed at the lower left front position of the mud water tank.

8. The shield machine slag conveying device for water-rich soft strata according to claim 1, characterized in that: A power motor is coaxially mounted on the top of the screw conveyor.

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