A TBM cutter head slag inlet limiting device

Abstract

The present invention relates to a slag inlet limiting device for a TBM cutterhead. The present invention effectively solves problems such as mud and sand gushing in the cutterhead. The technical solution adopted includes a cutterhead, on the surface of which a slag inlet mechanism is provided. The slag inlet mechanism includes a slag inlet, a slag inlet hopper, a switching frame, and filtering blades. The slag inlet hopper is integrally provided on the inner side of the cutterhead, the slag inlet is opened on the surface of the cutterhead, a switching frame is slidably arranged inside the slag inlet hopper, and a filtering blade is rotatably arranged on one side of the switching frame. The designed switching frame in this solution can move horizontally left and right under the action of a control rod, achieving the effect of opening channels for two switching frames, enabling rocks to be normally conveyed along the opened channels. When encountering water, mud, or sand gushing, the water or sand can reach one side of a pressing plate through the filtering blades for water extrusion. On the side where water is extruded, a row of water-absorbing holes are provided through a rotating plate to suck the extruded and filtered water into a conveying pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel boring, and particularly to a TBM cutter head slag inlet limiting device. Background Art

[0002] With the development of science and technology, tunnel boring machines have received increasing attention in various industries due to their great advantages in terms of economy, safety, environmental protection, and tunneling efficiency, and have been widely used in the construction of underground projects such as railway tunnels, highway tunnels, urban subway tunnels, coal mine tunnels, and water diversion tunnels. In particular, the application of tunnel boring machines (TBMs) in ultra-long railway tunnels, highway tunnels, and water diversion tunnels is increasing.

[0003] The TBM method is generally suitable for rock geological tunnels with low water content and relatively stable rock formations. Since TBM construction tunnels are generally relatively long and the geology is complex, it is inevitable to encounter water-rich altered rock formations or water-rich fractured zone rock formations during construction. Such formations have poor stability and high water content, and there will be situations of water gushing, mud gushing, and sand gushing. Without a certain limiting device at the slag inlet of the cutter head, the gushing mud and sand can be orderly transported to the tail of the fuselage along with the rock slag, and the water entering the inner fuselage can also be discharged.

[0004] In view of the above, we provide a TBM cutter head slag inlet limiting device to solve the above problems. Summary of the Invention

[0005] In view of the above situation, the present invention provides a TBM cutter head slag inlet limiting device. The switching frame designed in this device can move horizontally left and right under the action of the control rod to achieve the effect of opening the channels of the two switching frames. When encountering water gushing, mud gushing, and sand gushing, water or sand can reach one side of the extrusion plate through the filtering blades for squeezing out water.

[0006] A TBM cutter head slag inlet limiting device includes a cutter head. A slag inlet mechanism is provided on the surface of the cutter head. The slag inlet mechanism includes a slag inlet, a slag inlet hopper, a switching frame, and filtering blades. The slag inlet hopper is integrally provided on the inner side surface of the cutter head. The slag inlet is opened on the surface of the cutter head. A switching frame is slidably provided inside the slag inlet hopper. Filtering blades are rotatably provided on one side of the switching frame. A control mechanism is provided below the switching frame. The control mechanism includes a horizontal bar, a control rod, and a control frame. The control frame is slidably provided in the middle of the slag inlet hopper. A control rod is integrally provided on the upper surface of the control frame. The horizontal bar is slidably provided inside the slag inlet hopper. A through rod is lapped on the surface of the horizontal bar. The through rod is slidably provided in the middle of the switching frame. A control rod is lapped on one side of the horizontal bar. A misalignment block is rotatably provided on one side of the switching frame.

[0007] The beneficial effects of the above technical solution are as follows:

[0008] The switching rack designed in this solution can move horizontally left and right under the action of the control rod, achieving the effect of opening the channels of the two switching racks, enabling the rock to be normally transported along the open channels. When encountering water, mud, or sand gushing, the water or sand can reach one side of the extrusion plate through the filter blades for extrusion and water discharge. On the side where water is extruded, there are a row of water-absorbing holes through the rotating plate to suck the extruded and filtered water into the conveying pipe. The conveying pipe transports the water to the outside of the cutter head through the installed water pump. The soil after extrusion is pushed out by the pushing piece and mixed with the rock slag for conveying. Moreover, in this solution, the filter blades can be rotated and reset through the through rod, enabling the rock to reach near the discharge port and wait for discharge. Brief Description of the Drawings

[0009] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0010] Figure 2 It is a schematic diagram of the side of the cutter head of the present invention;

[0011] Figure 3 It is a schematic diagram of the unilateral cutting of the cutter head of the present invention;

[0012] Figure 4 It is a schematic diagram of the slag inlet hopper of the present invention;

[0013] Figure 5 It is a schematic diagram of the side of the slag inlet hopper of the present invention;

[0014] Figure 6 It is a schematic diagram of the partial cutting of the slag inlet hopper of the present invention;

[0015] Figure 7 For the present invention Figure 6 The enlarged schematic diagram at position A;

[0016] Figure 8 It is a schematic diagram of the middle cutting of the slag inlet hopper of the present invention;

[0017] Figure 9 It is a schematic diagram of the hidden part of the slag inlet hopper of the present invention;

[0018] Figure 10 It is a schematic diagram of the inside of the slag inlet hopper of the present invention;

[0019] Figure 11 It is a schematic diagram of the partial cutting of the slag inlet hopper of the present invention.

[0020] In the figure: 1. Cutter head; 2. Slag inlet; 3. Slag hopper; 4. Switching frame; 5. Filter leaf; 6. Horizontal bar; 7. Control rod; 8. Control frame; 9. Through rod; 10. Misalignment block; 11. Return spring; 12. Discharge port; 13. Partition board; 14. Horizontal spring; 15. Driving leaf; 16. Guide block; 17. Extrusion plate; 18. Rotating plate; 19. Delivery pipe; 20. Push rod; 21. Pushing piece; 22. Adjusting plate; 23. Adjusting spring; 24. Machine body; 25. Fixed ring; 26. Adjusting groove; 27. Adjusting rod; 28. Positioning groove; 29. Positioning frame; 30. Vertical rod; 31. Side wheel; 32. Conveyor belt; 33. Main wheel; 34. Reciprocating groove; 35. Conveying platform; 36. Pulling bar. Detailed implementation manners

[0021] Regarding the foregoing and other technical contents, features and effects of the present invention, they can be clearly presented in the following detailed description of the embodiments in conjunction with the attached Figures 1 to 11 drawings. The structural contents mentioned in the following embodiments are all referenced to the drawings of the specification.

[0022] This embodiment provides a TBM cutter head slag inlet limiting device. As shown in the attached Figures 1-11 drawings, the attached drawings of the specification Figure 1 are the flow schematic diagrams of this solution. The attached drawings of the specification Figure 2 can show the structure inside the cutter head 1. The attached drawings of the specification Figure 3 cut one side of the slag hopper 3. Starting from the attached drawings of the specification Figure 4 , the cutter head 1 and the machine body 24 are not shown in this solution, and the results are shown centered on the slag hopper 3. The attached drawings of the specification Figure 5 show another perspective of the slag hopper 3. The attached drawings of the specification Figure 6 show a traditional sectional view, but only show the top of the slag hopper 3. The attached drawings of the specification Figure 8 cut one side of the slag hopper 3. The attached drawings of the specification Figure 9 hide the slag hopper 3. The attached drawings of the specification Figure 10 are another perspective of the attached drawings of the specification Figure 9 . The attached drawings of the specification Figure 11What is cut is the bottom of the slag inlet hopper 3. The following will introduce this solution from two aspects. First is the structure centered on the switching frame 4, which introduces the inside of the slag inlet hopper 3 with the switching frame 4 as the center. Second is the structure centered on the adjusting plate 22, which introduces the outside of the slag inlet hopper 3. First, the slag inlet hopper 3 is integrally arranged on one side of the cutter head 1. Since the cutter head 1 of this solution can rotate on the fuselage 24, the slag inlet hopper 3 will also rotate accordingly (the rotation of the cutter head 1 is prior art, and this solution does not limit the rotation of the cutter head 1). The slag inlet 2 is just on one side of the slag inlet hopper 3. In this way, the rock slag will enter the slag inlet 2 during the rotation of the cutter head 1 and reach the inside of the slag inlet hopper 3. Then it is conveyed inside the slag inlet hopper 3 to the conveying platform 35 to complete the slag inlet conveying work. The conveying platform 35 is actually a belt conveyor. Since the fuselage 24 does not move, the conveying platform 35 also does not move. It extends from one side of the slag inlet hopper 3 to the rotation center of the fuselage 24. A spiral blade can be set at the rotation center of the slag inlet hopper 3 to the fuselage 24 to ensure that the rock slag can smoothly reach the conveying platform 35. A switching frame 4 is slidably arranged horizontally inside the slag inlet hopper 3. As shown in the instruction manual appendix Figure 6 and 7 shown, the switching frame 4 can slide stably according to the limit of the partition board, and there is a certain sealing performance between the two. The partition board is integrally arranged inside the slag inlet hopper 3. A transverse spring 14 is arranged between the partition board and the switching frame 4. In the figure, the transverse spring 14 is in the original length state, so the switching frame 4 can be reset after sliding. A filtering blade 5 is rotatably arranged on the upper surface of the switching frame 4. A reset spring 11 is arranged on one side of the rotation center of the filtering blade 5. The reset spring 11 is a torsion spring, which can make the filtering blade 5 rotate and reset. The filtering blade 5 is provided with filtering holes at the edge (there are no filtering holes on the side close to the rotation center, so as to prevent sediment from reaching the other side of the pressing plate 17). When water and sand enter the cutter head 1, the rock blocks can be retained on the filtering blade 5. Since the cutter head 1 is mostly arranged horizontally and water and sand need to reach the low-lying area, a low-lying dividing line is arranged below the filtering blade 5. As shown in the instruction manual appendix Figure 6 shown, it is higher above the line and lower below the line, so as to ensure that the liquid can smoothly reach one side of the pressing plate 17 for pressing. The pressing in this solution relies on the horizontal movement of the pressing plate 17. The pressing plate 17 (the shape of the pressing plate 17 is an L shape, as shown in the instruction manual appendix Figure 7 shown) is fixed on one side of the switching frame 4. Only by controlling the horizontal movement of the switching frame 4 can the effect of moving the pressing plate 17 be achieved. The horizontal movement of the switching frame 4 relies on the control rod 7. The control rod 7 is integrally arranged in the middle of the control frame 8. Since the control frame 8 can move up and down in the middle of the slag inlet hopper 3 (how to move up and down will be introduced in the next paragraph), the control rod 7 will also move up and down. The upper part of the control rod 7 extends to the bottom of the misalignment block 10. As shown in the instruction manual appendix Figure 6As shown, the offset rack rotates unidirectionally on one side of the switching rack 4. Since the tops of the offset block 10 and the control rod 7 are offset in this solution, it is easy to mistake them for being suspended when viewing the attached drawings. In fact, they are not. Instead, the offset causes the connection part not to be displayed, as shown in the attached drawings of the specification. Figure 11 That is, the connection position is shown. Since the offset block 10 can only rotate unidirectionally on the switching rack 4, when the control rod 7 moves upward, the offset block 10 and the switching rack 4 form an inclined plane. Under the action of this inclined plane, the switching rack 4 moves along the middle part of the slag inlet hopper 3. When it reaches the top, the switching rack 4 is released. At this time, the switching rack 4 returns toward the middle under the action of the transverse spring 14. When the control rod 7 returns from top to bottom, it will cause the offset block 10 to rotate (one side of the offset block 10 also has a torsion spring and can be rotated and reset), so that the offset block 10 can be rotated and reset, facilitating the next control of the switching rack 4 to move. At the same time as the control rod 7 moves upward, it can also control the transverse bar 6 to move. The transverse bar 6 is limited and slidably arranged inside the slag inlet hopper 3 and is vertically limited and slidable. One side of the transverse bar 6 is lapped with the control rod 7, and both sides of the transverse bar 6 are connected up and down by the small blocks extending from the control rod 7, which can also be understood as being fixed on one side of the control rod 7. A notch is provided on one side of the transverse bar 6, and the notch lapped with the through rod 9. The reason for setting the notch is that the switching rack 4 needs to move horizontally. Without affecting the horizontal movement of the switching rack 4, the through rod 9 can move up and down. When the through rod 9 moves upward, it will first cause the filter blade 5 to rotate and store energy. Since a return spring 11 is provided at the edge of the filter blade 5, after the return spring 11 stores energy, because there is a cylinder on one side of the rotation center of the filter blade 5, this cylinder will rotate away from the through rod 9. At this time, the through rod 9 will reach the upper end, and after the return spring 11 stores energy, it will quickly control the filter blade 5 to rotate toward the middle. Since at this time the switching rack 4 is moving toward the edge synchronously, a larger channel (through the discharge port 12) is formed between the two switching racks 4. This larger channel facilitates the rock to enter the bottom of the slag inlet hopper 3. Since the return spring 11 stores energy, the rock is bounced up under the action of the elastic force, so that the rock falls into the larger channel. After the through rod 9 moves upward, it will move downward. During the downward movement, it can cause the filter blade 5 to move in the opposite direction so that the rock can accumulate toward the middle, facilitating the next drop. A rotating plate 18 is rotatably arranged on the surface of the pressing plate 17, and small holes are provided on the back of the rotating plate 18 (as shown in the attached drawings of the specification). Figure 7As shown, a small hole is provided on one side of the middle part of the rotating plate 18 deviating from the pushing piece 21. One side of the rotating plate 18 is connected by inserting a conveying pipe 19. A channel is opened in the middle of the rotating plate 18 (there is also a torsion spring on one side of the rotating plate 18 to keep the rotating plate 18 in a vertical state). This channel is circular and is adapted to the outer diameter of the conveying pipe 19, so that one side of the conveying pipe 19 can also communicate with the rotating rotating plate 18). There is a protrusion on the pressing plate 17 in the direction towards the pushing piece 21, and there is a strip on the right side of the pushing piece 21 to block the movement of the protrusion. When the pressing plate 17 moves to the tail, it can make the rotating plate 18 rotate clockwise. The clockwise rotation of the rotating plate 18 can form a long channel with a smaller gap between the rotating plate 18 and the pressing plate 17. Then the water can flow back to one side of the pressing plate 17, and there are just small holes on the rotating plate 18 to absorb water and suck the water into the conveying pipe 19 (here is an introduction to how the conveying pipe 19 absorbs water. A water pump needs to be installed in the middle of the conveying pipe 19, that is, the water pump cuts the conveying pipe 19 into two sections. The water pump makes the small holes on the rotating plate 18 absorb water, and the conveying pipe 19 winds upward inside the switching frame 4 and communicates with the surface of the cutter head 1. Since the conveying pipe 19 is circular, round holes also need to be opened on the surface of the cutter head 1 so that the conveying pipe 19 can discharge to the surface of the cutter head 1, so that the liquid is circulated and transported, and the temperature of the surface of the cutter head 1 can also be reduced. Since the water pump belongs to the prior art, this solution will not introduce it in detail. For the convenience of understanding how the conveying pipe 19 reaches the outside, the conveying pipe 19 is shown suspended entirely. In fact, a part of the conveying pipe 19 is hidden inside the switching frame 4 and the slag inlet hopper 3, and in order to adapt to the horizontal movement of the switching frame 4, one section of it is a flexible pipe). Since there is a pushing piece 21 on one side of the pressing plate 17, there is a groove in the middle of the pushing piece 21, and when the pushing piece 21 moves downward, it can drive the soil in the groove to the lower part of the partition plate. Installing the pushing piece 21 below the push rod 20 can discharge the filtered soil to the lower part of the slag inlet hopper 3;

[0023] The previous paragraph introduced how this solution filters the sediment and circulates it to the cutter head 1 for cooling. This paragraph introduces another core adjusting plate 22 of this solution. The adjusting plate 22 is rotatably arranged at the slag inlet 2. There is an adjusting spring 23 on one side of the adjusting plate 22. The adjusting spring 23 is also a torsion spring. When there are more rocks at the slag inlet 2, it will drive the adjusting plate 22 to rotate at a larger angle, and when there are fewer rocks at the slag inlet 2, less force is required, so that the adjusting plate 22 rotates at a smaller angle or even does not rotate. Therefore, this solution determines according to this. There is a disc on one side of the adjusting plate 22, and there is a horizontal strip on the upper part of the middle of the disc, as shown in the attached instruction Figure 5As shown, above the positioning groove 28 is the horizontal bar. At this time, the horizontal bar 6 is just horizontal and the adjusting spring 23 is in a twisted state, that is, without external force, the adjusting plate 22 deviates slightly counterclockwise, that is, without external force, the adjusting rod 27 moves upward to make the adjusting plate 22 rotate counterclockwise (that is, the adjusting plate 22 makes the throughput of the slag inlet 2 smaller), and makes the left side of the adjusting rod 27 coincide with the lower surface of the horizontal bar 6. When there is external force, the adjusting plate 22 rotates clockwise, then the adjusting rod 27 moves upward to make the adjusting plate 22 rotate clockwise, and makes the right side of the adjusting rod 27 coincide with the lower surface of the horizontal bar 6 to achieve the fixing effect. The up and down movement of the adjusting rod 27 is through the fixed ring 25. The fixed ring 25 is vertically slidably arranged on the cutter head 1 (there is a frame on the cutter head 1 for the fixed ring 25 and the positioning frame 29 to slide. Since the cutter head 1 is not shown in the manual, it seems to be suspended). The lower part of the adjusting rod 27 is lapped on the fixed ring 25. The fixed ring 25 is integrally arranged on the fuselage 24. The rotation of the cutter head 1 makes the adjusting rod 27 change its position. The change of the position of the adjusting rod 27 depends on the adjusting groove 26. The adjusting groove 26 is an annular groove. The adjusting groove 26 has two ranges, the upper range is larger and the lower range is smaller. As shown in the manual appendix Figure 4 Since the cutter head 1 is not shown, it seems to be suspended), the lower part of the adjusting rod 27 is lapped on the fixed ring 25. The fixed ring 25 is integrally arranged on the fuselage 24. The rotation of the cutter head 1 makes the adjusting rod 27 change its position. The change of the position of the adjusting rod 27 depends on the adjusting groove 26. The adjusting groove 26 is an annular groove. The adjusting groove 26 has two ranges, the upper range is larger and the lower range is smaller. As shown in the manual appendix Figure 4 As shown, at this time, it is in the lower range of the adjusting groove 26, that is, the adjusting rod 27 is at the bottom. As the cutter head 1 rotates (the adjusting rod 27 rotates together), the adjusting rod 27 will be mostly above. Generally speaking, every time the cutter head 1 rotates one circle, the adjusting rod 27 will move downward and then move upward again to achieve the effect of repositioning and adjustment. Since the adjusting plate 22 will be positioned at different rotations by the adjusting rod 27 and can achieve two-angle rotations, the positioning groove 28 is designed thereon. The positioning groove 28 is an arc-shaped groove, but there is a feature that the distances from both ends to the center of the circle are constantly increasing or decreasing. In this way, the positioning frame 29 will move upward or downward (the positioning frame 29 also limits the vertical upward or downward movement of the cutter head 1). The vertical rods 30 extending and lapping on both sides of the positioning frame 29 make the vertical rods 30 move horizontally (there is an inclined notch on the vertical rods 30, so the vertical rods 30 can move horizontally left and right). The movement of the vertical rods 30 can drive the pulling strips 36 lapped on both sides. The middle part of the pulling strip 36 is also lapped on the conveyor belt 32, so that the conveyor belt 32 can have the effect of convex or concave conveying. In this way, the rotation of the conveyor belt 32 can be judged through the adjusting plate 22, that is, when the pressure received on one side of the adjusting plate 22 is large (when there is a lot of rock slag), it will control the conveyor belt 32 to convey concavely (as shown in the manual appendix Figure 9As shown, at this time, the conveyor belt 32 is in a slack state, and a pulling bar 36 is lapped on the surface. When the pressure received on one side of the adjusting plate 22 is small (when there is less slag), it will control the conveyor belt 32 to bulge and convey. And a tooth block is provided on the fixed ring 25, which can mesh with the main wheel 33 to drive the main wheel 33 to rotate. The rotation of the main wheel 33 can drive the wheels to rotate, achieving the effect of the operation of the conveyor belt 32. On one side of the main wheel 33, there is a reciprocating groove 34, which is an elliptical groove, and the control frame 8 is lapped on the reciprocating groove 34. The control frame 8 is limited to slide on the slag inlet hopper 3 (vertically slide and seal slide with the slag inlet hopper 3, because a long strip seal is provided on the edge of the control frame 8, and the vertical rod 30 has the same structure). Due to the rotation of the main wheel 33, the control frame 8 will move up and down, corresponding to the up and down movement of the control frame 8 introduced above. The up and down movement of the control frame 8 can also drive the driving blade 15 to continuously switch actions, as shown in the attached Figure 11 As shown, a guide block 16 is provided on the inner side wall of the slag inlet hopper 3. When the control frame 8 moves downward (in this perspective, the control frame 8 is in the upper position, and in other perspectives, such as the attached Figure 6When the control frame 8 is in the lower position), it can move along the left side of the guide block 16 under the pushing of the guide block 16 (at this time, the torsion spring on the edge of the driving blade 15 is twisted, and a torsion spring is arranged on the edge of the driving blade 15). However, when it reaches the bottom of the guide block 16, the torsion spring resets, causing the cylinder on the edge of the driving blade 15 (there is a cylinder on the edge of the driving blade 15) to reach the inclined surface of the guide block 16. Then, when the control frame 8 moves upward, it will control the driving blade 15 to reduce the angle, achieving the effect of reducing the angle upward and expanding the angle downward, which can facilitate the downward pushing of the rock slag inside the slag inlet hopper 3. The surface of the cutter head 1 is provided with a slag inlet mechanism, and the slag inlet mechanism includes a slag inlet 2, a slag inlet hopper 3, a switching frame 4, and a filtering blade 5. The slag inlet hopper 3 is integrally arranged on the inner side surface of the cutter head 1, the slag inlet 2 is opened on the surface of the cutter head 1, a switching frame 4 is slidably arranged inside the slag inlet hopper 3, a filtering blade 5 is rotatably arranged on one side of the switching frame 4, a control mechanism is arranged below the switching frame 4, and the control mechanism includes a horizontal bar 6, a control rod 7, and a control frame 8. The control frame 8 is slidably arranged in the middle of the slag inlet hopper 3, a control rod 7 is integrally arranged on the upper surface of the control frame 8, the horizontal bar 6 is slidably arranged inside the slag inlet hopper 3, a through rod 9 is lapped on the surface of the horizontal bar 6, the through rod 9 is slidably arranged in the middle of the switching frame 4, one side of the horizontal bar 6 is lapped with the control rod 7, a dislocation block 10 is rotatably arranged on one side of the switching frame 4, a return spring 11 is arranged on one side of the filtering blade 5, a discharge port 12 is opened in the middle of the switching frame 4, a partition plate 13 is integrally arranged inside the slag inlet hopper 3, a horizontal spring 14 is arranged between the partition plate 13 and the switching frame 4, driving blades 15 are rotatably arranged on both sides of the control frame 8, a guide block 16 is integrally arranged on the inner side wall of the slag inlet hopper 3, an extrusion plate 17 is integrally arranged on one side of the switching frame 4, a rotating plate 18 is rotatably arranged on one side of the extrusion plate 17, a conveying pipe 19 is communicated on one side of the extrusion plate 17, the other end of the conveying pipe 19 is communicated with the cutter head 1, a push rod 20 is arranged inside the slag inlet hopper 3, a pushing piece 21 is installed on the lower surface of the push rod 20, an adjusting plate 22 is rotatably arranged on one side of the slag inlet 2, an adjusting spring 23 is arranged on one side of the adjusting plate 22, a fuselage 24 is rotatably arranged on one side of the cutter head 1, a fixing ring 25 is integrally arranged inside the fuselage 24, an adjusting groove 26 is opened at the inner arc of the fixing ring 25, an adjusting rod 27 is lapped on the surface of the adjusting groove 26, the adjusting rod 27 is slidably arranged on one side of the cutter head 1, a positioning groove 28 is opened on one side of the adjusting plate 22, a positioning frame 29 is lapped on the surface of the positioning groove 28, the positioning frame 29 is slidably arranged on the outer surface of the slag inlet hopper 3, vertical rods 30 are slidably arranged on both sides of the slag inlet hopper 3, a pulling bar 36 is lapped on the surface of the vertical rods 30, a conveying mechanism is arranged inside the slag inlet hopper 3, and the conveying mechanism includes side wheels 31, a conveyor belt 32, and a main wheel 33. The main wheel 33 is rotatably arranged on one side of the slag inlet hopper 3, one side of the main wheel 33 is meshed with the fixing ring 25, the other side of the main wheel 33 is meshed with the side wheel 31, the side wheel 31 is rotatably arranged on one side of the slag inlet hopper 3, the conveyor belt 32 is lapped on the surface of the side wheel 31, and a reciprocating groove 34 is opened on one side of the main wheel 33.The surface of the reciprocating groove 34 is lapped with a control frame 8, the surface of the cutter head 1 is provided with blades, and a conveying platform 35 is arranged on one side of the fuselage 24.

[0024] The above description is only for the purpose of illustrating the present invention. It should be understood that the present invention is not limited to the above embodiments, and various flexible forms conforming to the idea of the present invention are within the protection scope of the present invention.

Claims

1. A TBM cutterhead slag feeding limiting device, comprising a cutterhead (1), characterized in that: The surface of the cutter disc (1) is provided with a slag feeding mechanism, the slag feeding mechanism comprising a slag feeding port (2), a slag feeding bucket (3), a switching frame (4) and a filter leaf (5), the slag feeding bucket (3) being integrally provided on the inner side surface of the cutter disc (1), the slag feeding port (2) being opened on the surface of the cutter disc (1), the switching frame (4) being slidably provided inside the slag feeding bucket (3), the filter leaf (5) being rotatably provided on one side of the switching frame (4), and a control mechanism being provided below the switching frame (4), the control mechanism comprising a transverse bar (6 ), a control rod (7) and a control frame (8), the control frame (8) being slidably arranged in the middle of the slag feed bucket (3), the upper surface of the control frame (8) being integrally provided with the control rod (7), the transverse bar (6) being slidably arranged inside the slag feed bucket (3), the surface of the transverse bar (6) being overlapped with a through rod (9), the through rod (9) being slidably arranged in the middle of the switching frame (4), one side of the transverse bar (6) being overlapped with the control rod (7), and one side of the switching frame (4) being rotatably provided with a dislocation block (10); The control rod (7) extends from the top to the bottom of the dislocation block (10). The dislocation block (10) rotates unidirectionally on the switching frame (4). When the control rod (7) moves upward, the dislocation block (10) and the switching frame (4) form an inclined plane. Under the action of the inclined plane, the switching frame (4) moves along the middle of the slag feed bucket (3). When the control rod (7) reaches the top, the switching frame (4) is released. Under the action of the transverse spring (14), the switching frame (4) returns to the middle. During the process of the control rod (7) returning from top to bottom, the dislocation block (10) is rotated. A torsion spring is provided on one side of the dislocation block (10). The dislocation block (10) can be rotated and reset to facilitate the next control of the switching frame (4) to move.

2. A TBM cutter head slag feeding limiting device according to claim 1, characterized in that: A return spring (11) is provided on one side of the filter leaf (5), a discharge port (12) is provided in the middle of the switching frame (4), a partition plate (13) is integrally provided inside the slag inlet hopper (3), a transverse spring (14) is provided between the partition plate (13) and the switching frame (4), driving leaves (15) are rotatably provided on both sides of the control frame (8), and a guide block (16) is integrally provided on the inner side wall of the slag inlet hopper (3).

3. A TBM cutter head slag feeding limiting device according to claim 1, characterized in that: An extrusion plate (17) is integrally provided on one side of the switching frame (4), a rotating plate (18) is rotatably provided on one side of the extrusion plate (17), a conveying pipe (19) is connected to one side of the extrusion plate (17), and a cutter disc (1) is connected to the other end of the conveying pipe (19), a push rod (20) is provided inside the slag feed bucket (3), and a push piece (21) is installed on the lower surface of the push rod (20).

4. A TBM cutter head slag feeding limiting device according to claim 1, characterized in that: An adjusting plate (22) is rotatably provided on one side of the slag inlet (2), an adjusting spring (23) is provided on one side of the adjusting plate (22), a body (24) is rotatably provided on one side of the cutter disc (1), a fixing ring (25) is integrally provided inside the body (24), an adjusting groove (26) is provided at the inner arc of the fixing ring (25), an adjusting rod (27) is overlapped on the surface of the adjusting groove (26), and the adjusting rod (27) is slidably provided on one side of the cutter disc (1), a positioning groove (28) is provided on one side of the adjusting plate (22), and a positioning frame (29) is overlapped on the surface of the positioning groove (28).

5. A TBM cutter head slag feeding limiting device according to claim 4, characterized in that: The positioning frame (29) is slidably arranged on the outer surface of the slag inlet bucket (3), and vertical rods (30) are slidably arranged on both sides of the slag inlet bucket (3), and the surfaces of the vertical rods (30) are overlapped with pulling bars (36).

6. A TBM cutter head slag feeding limiting device according to claim 4, characterized in that: A conveying mechanism is arranged inside the slag inlet hopper (3), the conveying mechanism comprising a side wheel (31), a conveyor belt (32) and a main wheel (33), the main wheel (33) being rotatably arranged on one side of the slag inlet hopper (3), a fixing ring (25) being meshed on one side of the main wheel (33), and a side wheel (31) being meshed on the other side of the main wheel (33).

7. A TBM cutter head slag feeding limiting device according to claim 6, characterized in that: The side wheel (31) is rotatably arranged on one side of the slag inlet hopper (3), and a conveyor belt (32) is overlapped on the surface of the side wheel (31).

8. The TBM cutter head slag feeding limiting device according to claim 6, characterized in that: A reciprocating groove (34) is formed on one side of the main wheel (33), and a control frame (8) is overlapped on the surface of the reciprocating groove (34).

9. The TBM cutter head slag feeding limiting device according to claim 1, characterized in that: The surface of the cutter disc (1) is provided with blades.

10. The TBM cutter head slag feeding limiting device according to claim 4, characterized in that: A conveying platform (35) is provided on one side of the machine body (24).

Images