TBM cutterhead slag feeding limiting device

Abstract

The invention relates to a TBM cutterhead slag feeding limiting device. The problems that mud and sand burst from a cutterhead and the like are effectively solved. According to the technical scheme, a cutter head is included, a slag feeding mechanism is arranged on the surface of the cutter head, the slag feeding mechanism comprises a slag inlet, a slag feeding hopper, a switching frame and filtering blades, the slag feeding hopper is integrally arranged on the inner side face of the cutter head, the slag inlet is formed in the surface of the cutter head, the switching frame is slidably arranged in the slag feeding hopper, and the filtering blades are arranged on the switching frame. And filtering blades are rotationally arranged on one side of the switching frame. The switching frames designed in the scheme can transversely move left and right under the action of the control rod, the effect that the channels of the two switching frames are opened is achieved, rock can be normally conveyed along the opened channels, when water gushing, mud gushing and sand gushing are met, water or sand can reach one side of an extrusion plate through filter blades to be extruded out of water, and the rock conveying efficiency is improved. And the extruded and filtered water is sucked to the conveying pipe through a row of water suction holes in the rotating plate on the extruded water outlet side.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel excavation, and in particular to a slag feeding limiting device for a TBM cutter head. Background Art

[0002] With the development of science and technology, tunnel boring machines have been increasingly valued by all walks of life due to their great advantages in economy, safety, environmental protection and excavation efficiency, and have been widely used in underground engineering construction such as railway tunnels, highway tunnels, urban subway tunnels, coal mine tunnels and water diversion tunnels. In particular, rock tunnel boring machines (TBMs) are increasingly used in ultra-long-distance railway tunnels, highway tunnels and water diversion tunnels.

[0003] The TBM construction method is generally suitable for rock geological tunnels with low water content and relatively stable rock formations. Since TBM construction tunnels are generally long and the geology is complex, it is inevitable to encounter water-rich altered rock formations or water-rich broken zone rock formations during the construction process. This type of formation has poor stability and high water content, and will cause water, mud and sand to gush out. The lack of a certain limiting device at the slag inlet of the cutterhead can not only allow the gushing mud and sand to be transported to the tail of the fuselage in an orderly manner along with the rock slag, but also discharge the water that enters the internal fuselage.

[0004] In view of the above, we provide a TBM cutter head slag feeding 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 feeding limiting device. The switching frame designed in the device can move left and right under the action of a control rod, so as to achieve the effect of opening channels of the two switching frames. When encountering gushing water, mud and sand, the water or sand can be squeezed out through the filtering leaves to reach one side of the extrusion plate.

[0006] A slag feeding limiting device for a TBM cutter disc comprises a cutter disc, a slag feeding mechanism is arranged on the surface of the cutter disc, the slag feeding mechanism comprises a slag feeding port, a slag feeding bucket, a switching frame and filter leaves, the slag feeding bucket is integrally arranged on the inner side surface of the cutter disc, the slag feeding port is opened on the surface of the cutter disc, a switching frame is slidably arranged inside the slag feeding bucket, a filter leaf is rotatably arranged on one side of the switching frame, a control mechanism is arranged below the switching frame, the control mechanism comprises a transverse bar, a control rod and a control frame, the control frame is slidably arranged in the middle part of the slag feeding bucket, a control rod is integrally arranged on the upper surface of the control frame, the transverse bar is slidably arranged inside the slag feeding bucket, a through rod is overlapped on the surface of the transverse bar, the through rod is slidably arranged in the middle part of the switching frame, a control rod is overlapped on one side of the transverse bar, and a misalignment block is rotatably arranged on one side of the switching frame.

[0007] The above technical solution has the following beneficial effects: The switching frame designed in this scheme can move left and right under the action of the control rod, so as to achieve the effect of opening the channels of the two switching frames, so that the rock can be normally transported along the open channels. When encountering water, mud or sand, the water or sand can be squeezed out through the filtering leaves to reach one side of the extrusion plate. On the side where the water is squeezed out, a row of water-absorbing holes on the rotating plate are used to suck the squeezed and filtered water into the conveying pipe. The conveying pipe conveys the water to the outside of the cutter disc through the installed water pump. The squeezed soil is pushed out by the pushing piece and mixed with the rock slag for conveying. In addition, this scheme can rotate and reset the filtering leaves through the penetrating rod, so that the rock can reach the vicinity of the discharge port and wait for discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side schematic diagram of the cutter head of the present invention; Figure 3 This is a schematic diagram of the single-side cutting of the knife disc of the present invention; Figure 4 This is a schematic diagram of the slag feeding bucket of the present invention; Figure 5 It is a side schematic diagram of the slag feeding bucket of the present invention; Figure 6 It is a partial cut schematic diagram of the slag feeding bucket of the present invention; Figure 7 For the present invention Figure 6 The enlarged schematic diagram at A in the middle; Figure 8 This is a schematic diagram of the middle cutting of the slag feeding bucket of the present invention; Fig. 9 This is a hidden schematic diagram of the slag feeding bucket of the present invention; Fig.10 This is a schematic diagram of the interior of the slag feeding hopper of the present invention; Fig.11 It is a partial cutting schematic diagram of the slag feeding bucket of the present invention.

[0009] In the figure: 1. cutter disc; 2. slag inlet; 3. slag inlet hopper; 4. switching frame; 5. filter leaf; 6. transverse strip; 7. control rod; 8. control frame; 9. through rod; 10. offset block; 11. reset spring; 12. discharge port; 13. partition; 14. transverse spring; 15. driving leaf; 16. guide block; 17. extrusion plate; 18. rotating plate; 19. conveying pipe; 20. push rod; 21. push piece; 22. adjustment plate; 23. adjustment spring; 24. fuselage; 25. fixing ring; 26. adjustment slot; 27. adjustment rod; 28. positioning slot; 29. ​​positioning frame; 30. vertical rod; 31. side wheel; 32. conveyor belt; 33. main wheel; 34. reciprocating slot; 35. conveying platform; 36. pulling strip. DETAILED DESCRIPTION

[0010] The above and other technical contents, features and effects of the present invention are described in detail below with reference to the attached Figures 1 to 11 It can be clearly presented in the detailed description of the embodiments that the structural contents mentioned in the following embodiments are all referenced to the drawings in the specification.

[0011] This embodiment provides a TBM cutter head slag feeding limiting device, as shown in the attached Figure 1-11 As shown in the instruction manual, Figure 1 This is a schematic diagram of the process of this program, and the instruction manual is attached. Figure 2 You can see the result inside the cutter head 1, the instruction manual is attached Figure 3 One side of the slag hopper 3 was cut, and the Figure 4 At the beginning, this solution does not show the cutter head 1 and the machine body 24, and the results are displayed with the slag hopper 3 as the center. Figure 5 Another view of the slag hopper 3, the instruction manual is attached Figure 6 It is a conventional cross-sectional view, which only shows the top of the slag inlet hopper 3. Figure 8 One side of the slag hopper 3 was cut, and the instructions are attached. Fig. 9 The slag hopper 3 is hidden, and the instruction manual is attached. Fig.10 It is included in the instruction manual Fig. 9 Another perspective, the instruction manual is attached Fig.11 The bottom of the slag inlet 3 is cut. The following introduces the present scheme in two aspects. The first is the structure centered on the switching frame 4. The switching frame 4 is the center of the introduction of the inside of the slag inlet 3. The second is the structure centered on the adjustment plate 22. The introduction is about the outside of the slag inlet 3. First, the slag inlet 3 is an integrally arranged side of the cutter disc 1. Since the cutter disc 1 of the present scheme can rotate on the machine body 24, the slag inlet 3 will also rotate with it (the rotation of the cutter disc 1 belongs to the prior art, and the present scheme does not limit the rotation of the cutter disc 1). The slag inlet 2 is just at the slag inlet 3. The slag is then transported to the conveying platform 35 by the slag inlet port 2 during the rotation of the cutter head 1. The conveying platform 35 is actually a belt conveyor. Since the machine body 24 is stationary, the conveying platform 35 is also stationary. One side of the slag inlet port 3 extends to the rotation center of the machine body 24. A spiral blade can be arranged at the rotation center from the slag inlet port 3 to the machine body 24 to ensure that the slag can smoothly reach the conveying platform 35. A switching frame 4 is arranged for horizontal sliding inside the slag inlet port 3, as shown in the attached manual. Figure 6 and 7As shown, the switching frame 4 can slide stably according to the limit of the partition, and there is a certain sealing between the two. The partition is integrally arranged inside the slag inlet hopper 3, and a transverse spring 14 is arranged between the partition and the switching frame 4. The transverse spring 14 is in the original length state in the figure, so the switching frame 4 can be reset after sliding. A filter leaf 5 is rotatably arranged on the upper surface of the switching frame 4, and a reset spring 11 is arranged on one side of the rotation center of the filter leaf 5. The reset spring 11 is a torsion spring, which can enable the filter leaf 5 to rotate and reset. The filter leaf 5 is provided with a filter hole on the edge (there is no filter hole on the side close to the rotation center, so that the mud and sand are placed on the other side of the extrusion plate 17). When the cutter disc 1 enters water and sand, the rock can be retained on the filter leaf 5. Since the cutter disc 1 is mostly arranged horizontally, water and sand need to reach a low-lying area, a low-lying dividing line is provided below the filter leaf 5, as shown in the attached manual Figure 6 As shown, the liquid is higher above the line and lower below the line, which ensures that the liquid can smoothly reach one side of the squeezing plate 17 for squeezing. The squeezing of this solution relies on the lateral movement of the squeezing plate 17. The squeezing plate 17 (the shape of the squeezing plate 17 is an L shape, as shown in the attached manual) Figure 7 As shown in the figure, the switching frame 4 is fixed on one side of the switching frame 4. The extrusion plate 17 can be moved by controlling the switching frame 4 to move horizontally. The horizontal movement of the switching frame 4 depends 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 (the next paragraph will introduce how to move up and down), the control rod 7 will also move up and down. The upper part of the control rod 7 extends to the bottom of the dislocation block 10, as shown in the attached manual. Figure 6 As shown, the dislocation frame rotates unidirectionally on one side of the switching frame 4. Since the dislocation block 10 and the top of the control rod 7 are dislocated in this solution, it is easy to think that they are suspended when viewing the attached drawings. In fact, they are not, but the dislocation causes the connection part to be not shown. Fig.11That is, the connection position is displayed. Since the dislocation block 10 can only rotate in one direction 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 inlet hopper 3. When it reaches the top, the switching frame 4 is released. At this time, the switching frame 4 returns to the middle under the action of the transverse spring 14. When the control rod 7 returns from top to bottom, the dislocation block 10 will rotate (one side of the dislocation block 10 also has a torsion spring, which can be rotated and reset). The dislocation block 10 can be rotated and reset, which is convenient for controlling the switching frame 4 to move next time. When the control rod 7 moves upward, the transverse bar 6 can also be controlled to move. The transverse bar 6 is limited and slidably arranged inside the slag feed bucket 3, and is a vertical limited sliding. A control rod 7 is overlapped on one side of the transverse bar 6. The small blocks on both sides of the transverse bar 6 are respectively extended by the control rod 7 to connect up and down, and 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 is overlapped with a through rod 9. The reason for the notch is that the switching frame 4 needs to be moved upward. The filter leaf 5 is moved laterally, and the through rod 9 is moved up and down without affecting the lateral movement of the switching frame 4. The upward movement of the through rod 9 will first cause the filter leaf 5 to rotate and accumulate force. Since the edge of the filter leaf 5 is provided with a return spring 11, after the return spring 11 accumulates force, since one side of the rotation center of the filter leaf 5 has a cylinder, this cylinder will rotate and separate from the through rod 9. At this time, the through rod 9 will reach the upper end, and the return spring 11 will quickly control the filter leaf 5 to rotate toward the middle after accumulating force. Since the switching frame 4 is moved toward the edge synchronously at this time, A larger channel (through the discharge port 12) is formed between the two switching frames 4, and this larger channel facilitates the rock to enter the bottom of the slag inlet hopper 3. Because the reset spring 11 is charged, the rock is bounced up under the action of the elastic force, so that the rock falls into the larger channel, and the through rod 9 moves upward and then moves downward. During the downward movement, the filter leaf 5 can move in the opposite direction so that the rock can be accumulated toward the middle, which is convenient for the next drop. The surface of the extrusion plate 17 is rotatably provided with a rotating plate 18, and the back of the rotating plate 18 is provided with small holes (as shown in the attached manual Figure 7As shown, a small hole is provided on one side of the middle of the rotating plate 18 which deviates from the ejection piece 21, and one side of the rotating plate 18 is plugged and connected through the delivery pipe 19, and a channel is opened in the middle of the rotating plate 18 (one side of the rotating plate 18 also has a torsion spring, so that the rotating plate 18 maintains a vertical state), this channel is circular and adapted to the outer diameter of the delivery pipe 19, so that one side of the delivery pipe 19 and the rotating rotating plate 18 can also be connected), and a protrusion is provided on the extrusion plate 17 toward the ejection piece 21, and at the ejection piece 21 There is a bar on the right side that blocks the movement of the protrusion, so that when the extrusion plate 17 moves to the tail, the rotating plate 18 can rotate clockwise. The clockwise rotation of the rotating plate 18 can form a long channel with a small gap between the rotating plate 18 and the extrusion plate 17, and the water can flow back to one side of the extrusion plate 17, and the rotating plate 18 is just provided with a small hole to absorb water, and the water is sucked into the delivery pipe 19 (here is an introduction to how the delivery pipe 19 absorbs water. A water pump needs to be installed in the middle of the delivery pipe 19. That is, the water pump cuts the delivery pipe 19 into two sections, and the water pump makes the small holes on the rotating plate 18 absorb water, and the delivery pipe 19 winds upward inside the switching frame 4 to connect to the surface of the cutter disc 1. Since the delivery pipe 19 is circular, a circular hole also needs to be opened on the surface of the cutter disc 1 so that the delivery pipe 19 can be discharged to the surface of the cutter disc 1, so that the liquid is circulated and transported, and the surface temperature of the cutter disc 1 can be reduced. Since the water pump belongs to the prior art, this scheme does not introduce it in detail. In order to facilitate understanding of how the delivery pipe 19 reaches the outside, the delivery pipe 19 is fully suspended for display. In fact, a part of the delivery 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 hose). Since a push-out piece 21 is provided on one side of the extrusion plate 17, a groove is provided in the middle of the push-out piece 21, and the downward movement of the push-out piece 21 can drive the soil in the groove to the bottom of the partition, and the push-out piece 21 is installed below the push rod 20, so that the filtered soil can be discharged to the bottom of the slag inlet hopper 3; The previous paragraph introduced how to filter the silt and circulate it to the cutter head 1 for cooling in this scheme. This paragraph introduces another core adjustment plate 22 of this scheme. The adjustment plate 22 is rotatably arranged at the slag inlet 2. An adjustment spring 23 is arranged on one side of the adjustment plate 22. The adjustment spring 23 is also a torsion spring. When there are more rocks at the slag inlet 2, the adjustment plate 22 will be driven to rotate at a large angle, and when there are fewer rocks at the slag inlet 2, the force required is also smaller, so that the adjustment plate 22 rotates at a small angle or even does not rotate. Therefore, this scheme is determined based on this. A disc is arranged on one side of the adjustment plate 22, and a horizontal strip is arranged on the upper middle part of the disc, as shown in the attached manual. Figure 5As shown, above the positioning groove 28 is the transverse bar. At this time, the transverse bar 6 is just horizontal and the adjusting spring 23 is in a twisted state. That is, the adjusting plate 22 deviates slightly counterclockwise without external force, that is, the adjusting rod 27 moves upward without external force to make the adjusting plate 22 rotate counterclockwise (that is, the adjusting plate 22 makes the amount of slag inlet 2 smaller), and the left side of the adjusting rod 27 coincides with the bottom of the transverse bar 6. When there is an external force, the adjusting plate 22 rotates clockwise, and then the adjusting rod 27 moves upward to make the adjusting plate 22 rotate clockwise, and the right side of the adjusting rod 27 coincides with the bottom of the transverse bar 6 to achieve a fixing effect. The up and down movement of the adjusting rod 27 passes through the fixing ring 25, and the fixing ring 25 is vertically slidably arranged on the cutter disc 1 (the cutter disc 1 is provided with a fixing ring 25 and a sliding frame of the positioning frame 29, because the instruction manual is attached Figure 4 The blade disc 1 is not shown, so it looks like it is suspended). The lower part of the adjusting rod 27 is overlapped on the fixing ring 25. The fixing ring 25 is integrally provided on the fuselage 24. The blade disc 1 rotates to change the position of the adjusting rod 27. The adjusting rod 27 changes its position by the adjusting groove 26. The adjusting groove 26 is an annular groove. The adjusting groove 26 has two upper and lower ranges. The upper position range is larger and the lower range is smaller. Figure 4 As shown, at this time, in the lower range of the adjustment slot 26, that is, the adjustment rod 27 is at the bottom, and as the cutter head 1 rotates (the adjustment rod 27 also rotates together), the adjustment rod 27 will be at the top most of the time. In summary, each rotation of the cutter head 1 will cause the adjustment rod 27 to move downward, and then move upward again, to achieve the effect of repositioning and adjustment. Since the adjustment plate 22 will be positioned differently by the adjustment rod 27 and can achieve two angles of rotation, a positioning slot 28 is designed on it. The positioning slot 28 is an arc slot, but one of the characteristics is that the distance between the two ends close to the center of the circle is constantly increasing or decreasing, so that the positioning frame 29 will move upward. Or move downward (the positioning frame 29 is also used to limit the vertical upward or downward movement of the cutter head 1), the vertical rods 30 extending and overlapping on both sides of the positioning frame 29 allow the vertical rods 30 to move horizontally (there is an oblique notch on the vertical rod 30, so the vertical rod 30 can move horizontally to the left and right), the movement of the vertical rod 30 can drive the pulling strips 36 overlapped on both sides, and the middle part of the pulling strips 36 is overlapped on the conveyor belt 32, so that the conveyor belt 32 can have a convex or concave conveying effect, so that the rotation of the conveyor belt 32 can be determined by 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), the conveyor belt 32 will be controlled to be concave for conveying (as shown in the attached manual Fig. 9As shown, at this time, the conveyor belt 32 is in a loose state, and a pulling strip 36 is overlapped on the surface. When the pressure received on one side of the adjusting plate 22 is small (when there is little rock slag), the conveyor belt 32 will be controlled to bulge for transportation, and a tooth block is provided on the fixing ring 25 to mesh with the main wheel 33, driving the main wheel 33 to rotate. The rotation of the main wheel 33 can drive the wheel to rotate, thereby achieving the effect of the conveyor belt 32 running, and a reciprocating groove 34 is provided on one side of the main wheel 33. The reciprocating groove 34 is an elliptical groove, and the control frame 8 is overlapped on the reciprocating groove 34, and the control frame 8 is limited to slide on the slag inlet hopper 3 (vertical sliding and sealed sliding between 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 also 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 blades 15 to switch actions continuously, as shown in the attached manual Fig.11 As shown in the figure, a guide block 16 is provided on the inner side wall of the slag feeding bucket 3. When the control frame 8 moves downward (the control frame 8 is at the top in this perspective, and other perspectives, as shown in the appendix of the specification Figure 6The control frame 8 is at the bottom) and can move against 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 leaf 15 is twisted, and the edge of the driving leaf 15 is provided with a torsion spring), but when it reaches the bottom of the guide block 16, the torsion spring is reset, so that the cylinder on the edge of the driving leaf 15 (there is a cylinder on the edge of the driving leaf 15) reaches the inclined surface of the guide block 16, and then the control frame 8 moves upward to control the driving leaf 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 feed bucket 3. The surface of the cutter disc 1 is provided with a slag feed mechanism, which includes a slag feed port 2, a slag feed bucket 3, a switching frame 4 and a filter leaf 5. The slag feed bucket 3 is integrally arranged on the inner side of the cutter disc 1, and the slag feed port 2 is opened on the cutter disc 1, a switching frame 4 is slidably arranged inside the slag inlet 3, a filter leaf 5 is rotatably arranged on one side of the switching frame 4, a control mechanism is arranged below the switching frame 4, the control mechanism includes a transverse 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 3, the upper surface of the control frame 8 is integrally provided with a control rod 7, the transverse bar 6 is slidably arranged inside the slag inlet 3, a through rod 9 is overlapped on the surface of the transverse bar 6, the through rod 9 is slidably arranged in the middle of the switching frame 4, the control rod 7 is overlapped on one side of the transverse bar 6, a dislocation block 10 is rotatably arranged on one side of the switching frame 4, a reset spring 11 is arranged on one side of the filter leaf 5, a discharge port 12 is opened in the middle of the switching frame 4, a partition 13 is integrally arranged inside the slag inlet 3, and the partition 13 and the switching frame 4 A transverse spring 14 is arranged between them, driving leaves 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 feed bucket 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 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 arranged inside the slag feed bucket 3, and a push 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 feed port 2, an adjusting spring 23 is arranged on one side of the adjusting plate 22, a body 24 is rotatably arranged on one side of the cutter disc 1, a fixing ring 25 is integrally arranged inside the body 24, an adjusting groove 26 is opened at the inner arc of the fixing ring 25, and the adjusting groove 26 An adjusting rod 27 is overlapped on the surface, and the adjusting rod 27 is slidably set on one side of the cutter disc 1. A positioning groove 28 is opened on one side of the adjusting plate 22. A positioning frame 29 is overlapped on the surface of the positioning groove 28. The positioning frame 29 is slidably set on the outer surface of the slag feed bucket 3. Vertical rods 30 are slidably set on both sides of the slag feed bucket 3. A pulling bar 36 is overlapped on the surface of the vertical rod 30. A conveying mechanism is arranged inside the slag feed bucket 3. The conveying mechanism includes a side wheel 31, a conveyor belt 32 and a main wheel 33. The main wheel 33 is rotatably set on one side of the slag feed bucket 3. A fixing ring 25 is meshed on one side of the main wheel 33, and a side wheel 31 is meshed on the other side of the main wheel 33. The side wheel 31 is rotatably set on one side of the slag feed bucket 3. The surface of the side wheel 31 is overlapped with the conveyor belt 32, and a reciprocating groove 34 is opened on one side of the main wheel 33.The surface of the reciprocating groove 34 is overlapped with a control frame 8, the surface of the cutter head 1 is provided with a blade, and a conveying platform 35 is provided on one side of the machine body 24.

[0012] The above description is only for illustrating the present invention. It should be understood that the present invention is not limited to the above embodiments, and various variations that conform to the concept 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 control rod (7) being integrally arranged on the upper surface of the control frame (8), 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 arranged with a dislocation block (10).

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).

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