Shield tunnel bottom slag removal equipment and use method

Abstract

The invention discloses shield tunnel bottom slag removing equipment and a using method, and relates to the technical field of tunnel equipment, the shield tunnel bottom slag removing equipment comprises a machine body arranged in a tunnel soil layer, a cutter head is rotatably arranged at the front end of the machine body, a plurality of cutter heads are fixedly installed on the surface of the cutter head, and a plurality of soil discharging holes are evenly formed in the surface of the cutter head; a deslagging mechanism is arranged on one side of the cutter head, and an expanding excavation mechanism is arranged in the cutter head. The residue discharging mechanism is arranged, the hoop consistent with the bottom of the tunnel soil layer in radian is arranged, the hoop can be attached to the bottom of the tunnel soil layer, under cooperation of the driving assembly and the lifting assembly, residue soil can be conveniently conveyed into a conveying system of the machine body multiple times, the residue soil can be smoothly conveyed to the outer side of a tunnel, and the construction efficiency is improved. And the situation that the slag is accumulated at the bottom of the tunnel and consequently the follow-up lining laying operation of inverted arch blocks is affected is avoided, the labor degree of a user can be reduced, the slag removing efficiency and quality are improved, and mechanical operation is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel equipment, and in particular to a shield tunnel bottom slag cleaning device and a use method thereof. Background Art

[0002] TBM (Tunnel Boring Machine) is a high-efficiency mechanical equipment used for tunnel construction. It is widely used in subways, hydropower stations, highways, railways and other fields. TBM will produce a lot of debris during the excavation process, which needs to be cleaned up in time to ensure the smooth progress and safety of the construction. After the debris is transported out of the tunnel, the waste residue at the bottom of the tunnel needs to be cleaned up. The cleaning work is usually done manually or mechanically, but manual operation requires workers to shovel the debris into the debris box with shovels and other equipment. The working environment is poor and the work efficiency is low. In addition, a steel arch partition is set at the bottom of the tunnel, which makes the arc bottom of the tunnel uneven and difficult to clean. A large amount of waste residue is accumulated in the steel arch partition, affecting the manual and mechanized operation results and making it inconvenient to implement the waste residue cleaning operation.

[0003] Based on this, a shield tunnel bottom slag cleaning device and a method of use are now provided to eliminate the drawbacks of the existing technical solutions. Summary of the invention

[0004] The object of the present invention is to provide a shield tunnel bottom slag cleaning device and a use method thereof, so as to solve the problem that it is inconvenient to implement waste slag cleaning operation in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A shield tunnel bottom slag cleaning device, comprising a machine body arranged inside the tunnel soil layer, a cutter disc rotatably arranged at the front end of the machine body, a plurality of cutter heads fixedly mounted on the surface of the cutter disc, a plurality of soil discharge holes evenly arranged on the surface of the cutter disc, a slag discharge mechanism for conveying slag soil arranged on one side of the cutter disc, and an expansion mechanism for expanding the tunnel excavation diameter arranged inside the cutter disc; The expansion mechanism includes a plurality of movable grooves evenly arranged on the surface of the cutter disc, a telescopic driver is arranged inside the movable groove, the telescopic end of the telescopic driver is fixedly connected to the connecting rod, the fixed end of the telescopic driver is fixedly connected to the inner wall of the movable groove, the other end of the connecting rod is rotatably connected to a rotary cutter, and the rotary cutter can move radially along the cutter disc to form milling cutting.

[0006] Preferably, the slag discharge mechanism includes a clamp symmetrically arranged inside the machine body, the top of the clamp is fixedly connected to a rotating rod, both ends of the rotating rod are rotatably connected to the fixed frame, a driving groove is arranged inside the fixed frame, one end of one of the rotating rods extends into the driving groove and is fixedly connected to the first gear, one end of the other rotating rod extends into the driving groove and is fixedly connected to the second gear, the first gear is meshed with the second gear, the gear shaft of the first gear is fixedly connected to the output end of the rotating motor, the rotating motor is fixedly installed on the inner wall of the driving groove, a positioning recess is arranged on the top of the fixed frame, a bottom plate is fixedly arranged on the inner lower end surface of the machine body trolley, and the positioning recess is connected to the bottom plate through an adjusting component.

[0007] Preferably, the adjustment component includes a guide rail fixedly arranged at the lower end of the base plate, the cross-section of the guide rail is arranged in an inverted "T" shape, a plurality of movable seats are slidably arranged on the guide rail, the cross-section of the movable seat is arranged in a U shape, a driving component for driving the movable seat to slide is arranged between the movable seat and the guide rail, and a lifting component for driving the clamp to move up and down is arranged at the lower end of the movable seat.

[0008] Preferably, the driving assembly includes a driving motor fixedly arranged on one side of the moving seat, the output end of the driving motor extends into the interior of the moving seat and is fixedly connected to the rotating shaft of the third gear, fourth gears are meshed on both sides of the third gear, a plurality of rollers are rotatably connected inside the moving seat, the rollers abut against the surface of the guide rail, the rollers are symmetrically arranged on both sides of the guide rail, and the rollers close to the driving motor side are fixedly connected to the rotating shaft of the fourth gear.

[0009] Preferably, the lifting assembly includes symmetrically arranged side panels, which are fixedly arranged on the bottom of the movable seat, and a mounting plate is arranged between the two side panels. A plurality of screw holes are opened on the surface of the side panels, and corresponding mounting holes matching the screw holes are opened on the surface of the mounting plate. A fastening bolt for fixing the mounting plate to the side panel is passed through the interior of each of the mounting holes, and a nut is threaded on the end of the fastening bolt. A chain box is fixedly arranged on the lower end of the mounting plate, and a chain is arranged below the chain box. The lower end of the chain is fixedly connected with a hook matching the positioning recess.

[0010] Preferably, the shape and specifications of the hoop are adapted to the shape and specifications of the bottom of the tunnel soil layer, the cross-section of the bottom of the hoop is arranged to be arc-shaped, and the surface of the bottom plate is symmetrically provided with openings for cooperating with the rotation of the hoop.

[0011] Preferably, grid-like protective plates are symmetrically arranged between the base plate and the cutter disc, a crushing knife is rotatably arranged between the two grid-like protective plates, one end of the crushing knife shaft extends into the interior of the grid-like protective plates and is fixedly connected to the output end of the crushing motor, and the crushing motor is arranged inside one of the grid-like protective plates.

[0012] Preferably, a hook is fixedly provided on the top of the chain collecting box, and a hanging ring cooperating with the hook is provided on the lower surface of the movable seat.

[0013] Preferably, one side of the telescopic drive, the rotating motor, the driving motor and the crushing motor is provided with a corresponding controller.

[0014] A method for using a slag removal device at the bottom of a shield tunnel, the specific steps of use are as follows: S1. During the excavation of the machine body, the debris generated during the tunnel excavation process moves to between the two grid-shaped protective plates, and the larger debris is initially crushed by the crushing knife; S2, the slag after preliminary crushing moves to the bottom of the bottom plate, at which time the hoop is in an open state, and the rotating motor is started to drive the first gear and the second gear to mesh and transmit, so that the two hoops are close to each other, and then the slag is collected inside the hoop; S3. With the cooperation of the chain and the chain collecting box, the hook drives the clamp to lift upward, and then the driving motor is started to drive the third gear and the fourth gear to engage and transmit, so that the roller rotates toward the side away from the cutter disc, so that the moving seat and the clamp move along the direction of the guide rail. When the moving seat moves to the end of the other side of the guide rail, the rotating motor reverses, driving the first gear and the second gear to engage and transmit, so that the two clamps move away from each other, and the slag can fall into the slag conveying equipment.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is provided with a slag discharge mechanism, and a hoop with the same curvature as the bottom of the tunnel soil layer is provided, so that the hoop can fit the bottom of the tunnel soil layer. With the cooperation of the driving component and the lifting component, it is convenient to transport the slag to the inside of the conveying system of the machine body for multiple times, so that the residual slag can be smoothly transported to the outside of the tunnel, avoiding accumulation at the bottom of the tunnel, thereby affecting the subsequent lining laying operation of the invert block, and can reduce the labor degree of the user, improve the efficiency and quality of slag removal, and facilitate the mechanized operation effect; 2. The present invention provides an expansion mechanism, which can realize the improvement of the expansion operation of the tunnel top, thereby forming a tunnel section that is larger at the top and smaller at the bottom, making it easier to omit the steel arch support structure in the lower half and reduce the excavation area. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the expansion and excavation mechanism of the present invention.

[0018] Figure 3 It is a structural schematic diagram of the bottom plate and the opening of the present invention.

[0019] Figure 4 It is a schematic diagram of the structure of the grid-shaped protective plate and the crushing knife of the present invention.

[0020] Figure 5 It is a schematic diagram of the interior of the present invention.

[0021] Figure 6 It is a structural schematic diagram of the clamp and the adjustment assembly of the present invention.

[0022] Figure 7 It is a schematic diagram of the structure of the driving assembly of the present invention.

[0023] Figure 8 It is a schematic structural diagram of the lifting assembly of the present invention.

[0024] Fig. 9 It is a schematic structural diagram of the rotating rod and the clamp of the present invention.

[0025] Fig.10 For the present invention Figure 6 Enlarged view of point A in the middle.

[0026] Notes on figure numbers: tunnel soil layer 101, machine body 102, cutter disc 103, cutter head 104, soil discharge hole 105, grid-shaped protective plate 106, crushing knife 107, slag discharge mechanism 200, clamping hoop 201, rotating rod 202, fixing frame 203, driving groove 204, first gear 205, second gear 206, positioning recess 207, bottom plate 208, guide rail 209, moving seat 210, third gear 211, fourth gear 212, roller 213, side plate 214, mounting plate 215, fastening bolt 216, chain box 217, chain 218, hook 219, opening 220, hook 221, hanging ring 222, expansion and excavation mechanism 300, moving groove 301, telescopic drive 302, connecting rod 303, rotating knife 304. DETAILED DESCRIPTION

[0027] Example 1

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] In this embodiment, if Figure 1-Figure 10As shown, a shield tunnel bottom slag cleaning device is shown. Considering the influence of steel arch frame on slag cleaning mechanization operation, economic cost, actual use space of tunnel and other factors, the internal structure of shield tunnel is improved. The upper half of the tunnel is supported by steel arch frame. Since the surrounding rock of the lower half of the tunnel is good, the steel arch frame support structure of the lower half is omitted to reduce the excavation area. The tunnel in the present invention adopts non-full ring steel arch frame. The upper part of the tunnel section adopts a conventional diameter section, and the lower part adopts a reduced diameter section within the range of 90°~120°. The arch foot of the steel arch frame is fixedly supported on the upper The step of changing the diameter of the lower tunnel section saves the excavation amount of the tunnel section and is conducive to the slag cleaning operation of the smooth arc surface at the bottom of the tunnel, so as to realize the mechanized slag cleaning effect at the bottom of the shield tunnel. The shield tunnel bottom slag cleaning equipment in the present invention is arranged based on the non-full ring steel arch tunnel, which greatly reduces the labor degree of the staff. The equipment includes a body 102 arranged inside the tunnel soil layer 101, and a driving structure for controlling the rotation of the cutter head 103 and the cutter head 104 and various devices such as the conveying system for discharging soil and exhausting gas are arranged inside the body 102. The above components are common components in this field and are prior art. The conveying system usually includes belt conveyors or screw conveyors, slag cleaning belts and other slag conveying equipment. Most of the slag in the excavation process falls into the conveying system of the machine body 102 through the soil discharge hole 105 and the connecting pipe, and then the slag is transported from the bottom of the tunnel to the outside of the tunnel through the slag conveying equipment. After the slag is transported out of the tunnel, some waste slag remains at the bottom of the tunnel. The residue is cleaned by the slag discharge mechanism 200. The front end of the machine body 102 is rotatably provided with a cutter head 103, which is convenient for moving the slag to the holding Below the hoop 201, a plurality of cutter heads 104 are fixedly mounted on the surface of the cutter disc 103 to ensure the normal operation of the equipment. A plurality of soil discharge holes 105 are evenly arranged on the surface of the cutter disc 103. A slag discharge mechanism 200 for conveying the slag under the trolley to the main mucking channel of the TBM is arranged on one side of the cutter disc 103. An expansion mechanism 300 for expanding the tunnel excavation diameter is arranged inside the cutter disc 103. Before a shield tunnel bottom slag removal device is used, first check whether the device can be used normally, and then start the corresponding controller to put the device into a standby state; The excavation mechanism 300 includes a plurality of movable grooves 301 evenly arranged on the surface of the cutter head 103. A connecting pipe connected to the soil discharge hole 105 is arranged inside the movable groove 301, so that the debris dropped into the movable groove 301 during the excavation process can be smoothly moved to the outside of the tunnel through the conveying system to avoid the accumulation of debris and the impact on the internal structure and normal operation of the telescopic drive 302 and the rotary cutter 304. The movable groove 301 is provided with a telescopic drive 302 to facilitate the rotary cutter 304 to move to the outside of the movable groove 301. , to facilitate the expansion of a certain distance, the telescopic end of the telescopic driver 302 is fixedly connected to the connecting rod 303, the fixed end of the telescopic driver 302 is fixedly connected to the inner wall of the movable groove 301, and the other end of the connecting rod 303 is rotatably connected to a rotary cutter 304, the rotary cutter 304 includes a cutter and a rotating structure that drives the cutter to rotate, and the rotary cutter 304 can move along the radial direction of the cutter disc 103. When expansion is required, several telescopic drivers 302 and rotary cutters 304 corresponding to the expansion range are started, thereby realizing the expansion and excavation improvement operation of the tunnel top.

[0030] Among them Figure 3-Figure 10 As shown, the slag discharge mechanism 200 includes a hoop 201 symmetrically arranged inside the machine body 102. After the hoop 201 is filled with bottom slag, the two sides of the hoop 201 can be retracted through the interaction between the rotating motor and the first gear and the second gear, and then the waste slag is packaged, which is convenient for driving the waste slag to move, and then moved to the outside of the tunnel through manual or conveying systems. The top of the hoop 201 is fixedly connected with a rotating rod 202, and the two ends of the rotating rod 202 are rotatably connected to the fixed frame 203. A driving groove 204 is arranged inside the fixed frame 203, and one end of one rotating rod 202 extends into the driving groove 204 and is fixedly connected to the first gear 205, and one end of the other rotating rod 202 extends into the driving groove 204 and is fixedly connected to the second gear 206, and the first gear 205 is meshed with the second gear 206. The gear shaft of the first gear 205 is fixedly connected to the output end of the rotating motor, and the rotating motor is fixedly installed on the inner wall of the driving groove 204. When the rotating motor is started, the first gear 205 is driven to rotate, and then the second gear 206 is driven to rotate, so that the rotating rod 202 is rotated, and then the clamp 201 is driven to open or close. A positioning recessed block 207 is provided on the top of the fixed frame 203, and a bottom plate 208 is fixedly provided on the lower end surface of the inner part of the body 102 trolley. The bottom plate 208 can be used as a supporting platform for the conveying system, and can also be used as a dividing line between the slag discharge area and various other devices, so as to facilitate the passage of operators and the operation of various devices without interfering with each other. The positioning recessed block 207 is connected to the bottom plate 208 through an adjusting component, and the clamp 201 is driven to move up and down and forward and backward through the adjusting component, so as to facilitate the movement of the slag.

[0031] Among them Figure 5-Figure 8As shown, the adjustment component includes a guide rail 209 fixedly arranged at the lower end of the bottom plate 208. The guide rail 209 is arranged so that the hoop 201 can move smoothly along the direction of the guide rail 209 to increase the stability of the structure. The cross section of the guide rail 209 is arranged in an inverted "T" shape. Limiting plates for preventing the moving seat 210 from moving in the front-rear direction are arranged at both ends of the guide rail 209, thereby ensuring safety. A plurality of moving seats 210 are slidably arranged on the guide rail 209, and a hydraulic cylinder can be arranged between the moving seats 210, so that the arch block can be synchronously driven forward when the hoop 201 moves toward one side of the cutter disc 103. At this time A clamp 201 is connected to the bottom of one moving seat 210, and an invert block is connected to the bottom of the other moving seat 210, so that when the clamp 201 moves to another slag cleaning area during the movement of the equipment, the invert block can move to the area where the slag cleaning operation has been completed, which is convenient for subsequent operations. The cross-section of the moving seat 210 is set to be U-shaped, and a driving component for driving the moving seat 210 to slide is set between the moving seat 210 and the guide rail 209. A lifting component for driving the clamp 201 to move up and down is set at the lower end of the moving seat 210, so that the clamp 201 can perform both lifting and lowering movements and axial movement along the tunnel, which is convenient for flexible lifting of slag.

[0032] Among them Figure 3-Figure 10 As shown, the driving assembly includes a driving motor fixedly arranged on one side of the moving seat 210, the output end of the driving motor extends to the inside of the moving seat 210 and is fixedly connected to the rotating shaft of the third gear 211, and the fourth gear 212 is meshed on both sides of the third gear 211. A plurality of rollers 213 are rotatably connected inside the moving seat 210, and the rollers 213 abut against the surface of the guide rail 209. The rollers 213 are symmetrically arranged on both sides of the guide rail 209, and the rollers 213 close to one side of the driving motor are fixedly connected to the rotating shaft of the fourth gear 212. The third gear 211 is driven to rotate by the driving motor, and then the fourth gear 212 is driven to rotate, so that the plurality of rollers 213 can move in the same direction, thereby realizing the adjustment operation of the position of the clamp 201.

[0033] Among them Figure 6-Figure 10As shown, the lifting assembly includes symmetrically arranged side plates 214, which are fixedly arranged at the bottom of the moving seat 210, and a mounting plate 215 is arranged between the two side plates 214. The surface of the side plates 214 is provided with a plurality of screw holes, and the surface of the mounting plate 215 is provided with mounting holes that match the screw holes. A fastening bolt 216 for fixing the mounting plate 215 to the side plate 214 is penetrated inside each mounting hole. The connection structure is relatively simple and easy to disassemble and install. The end thread of the fastening bolt 216 is provided with a nut, and the lower end of the mounting plate 215 is fixedly provided with a chain Box 217, a motor, a reducer and a chain drum are arranged inside the chain box 217, and the above components are common components in this field and are prior art, so that when the clamp 201 needs to be lifted, the motor drives the reducer to work, and then the hook 219 of the chain drum moves in the vertical direction, so as to achieve the purpose of lifting, and a chain 218 is arranged under the chain box 217, and the lower end of the chain 218 is fixedly connected with a hook 219 that cooperates with the positioning recessed block 207, and the hook 219 can be set to one or more, so as to increase the stability of the clamp 201 after lifting.

[0034] Among them Figure 3 As shown, the shape and specifications of the clamp 201 are compatible with the shape and specifications of the bottom of the tunnel soil layer 101. The cross-section of the bottom of the clamp 201 is set to an arc shape, which is convenient for shoveling the debris at the bottom of the tunnel soil layer 101. Baffles that match the clamp 201 can be set on both sides of the clamp 201 to avoid the debris from falling during the movement, resulting in low debris transportation efficiency and difficulty in subsequent cleaning. The surface of the bottom plate 208 is symmetrically provided with openings 220 for cooperating with the rotation of the clamp 201 to avoid interference with the opening and rotation operation of the clamp 201, which causes the equipment to be unable to be used normally.

[0035] Among them Figure 4 and Figure 5 As shown, grid-like protective plates 106 are symmetrically arranged between the bottom plate 208 and the cutter disc 103, and a crushing knife 107 is rotatably arranged between the two grid-like protective plates 106. The crushing knife 107 performs preliminary crushing operation on the debris to prevent some debris blocks with large areas from being difficult to shovel out by the clamp 201. One end of the rotating shaft of the crushing knife 107 extends to the inside of the grid-like protective plate 106 and is fixedly connected to the output end of the crushing motor. The crushing motor is arranged in one of the grid-like protective plates 106 to prevent the crushing motor from being damaged.

[0036] Among them Figure 8 As shown, a hook 221 is fixedly provided on the top of the chain collecting box 217, and a hanging ring 222 matching with the hook 221 is provided on the lower surface of the movable seat 210, so that when installing a plurality of fastening bolts 216, the staff does not need to lift the clamp 201 for a long time, thereby reducing the labor intensity.

[0037] Among them Figure 2-Figure 8 As shown, one side of the telescopic drive 302, the rotating motor, the driving motor and the crushing motor are all provided with corresponding controllers to control the corresponding components to execute corresponding commands and realize the automatic slag cleaning operation of the equipment. The controller can centralize data information, issue and execute instructions through the control panel.

[0038] Among them Figure 1-Figure 10 As shown, a method for using a shield tunnel bottom slag cleaning device, the specific steps are as follows: S1. During the excavation of the machine body 102, the debris generated during the tunnel excavation process moves between the two grid-shaped protective plates 106, and the larger debris is initially crushed by the crushing blade 107; S2, the slag after preliminary crushing moves to the bottom of the bottom plate 208, at which time the hoop 201 is in an open state, and the rotating motor is started to drive the first gear 205 and the second gear 206 to mesh and transmit, so that the two hoops 201 are close to each other, and then the slag is collected inside the hoop 201; S3. With the cooperation of the chain 218 and the chain box 217, the hook 219 drives the clamp 201 to lift upward, and then the driving motor is started to drive the third gear 211 and the fourth gear 212 to engage and transmit, so that the roller 213 rotates toward the side away from the cutter disc 103, so that the moving seat 210 and the clamp 201 move along the direction of the guide rail 209. When the moving seat 210 moves to the end on the other side of the guide rail 209, the rotating motor reverses, driving the first gear 205 and the second gear 206 to engage and transmit, so that the two clamps 201 move away from each other, and the slag can fall into the inside of the slag conveying equipment.

[0039] When the slag is cleared, the trolley continues to move forward, and a hoisting device for the inverted arch lining block is fixed to the rear of the bottom plate through the frame. The hoisting device works on the ground after the slag is cleared to install the inverted arch lining block, thereby realizing the rapid installation of the inverted arch lining block. In this embodiment, there are two groups of openings, the front one is mainly used for observation, and the rear one is mainly used for collection and lifting. Example 2

[0040] The principle of this embodiment is the same as that of embodiment 1, but the specific difference is that during the slag removal process, after the material is lifted, the transfer from the hoop to the main slag transportation channel can be realized manually, or an automated lifting device can be added to the construction site, the feed port of the lifting device is connected to the hoop through the opening 220, and the discharge port is connected to the slag transportation channel of the TBM itself to realize the transportation of slag. For the sake of distinction, the bottom of the channel is called slag, and the slag that is scraped off by the shield cutter head and transported outward is called slag. In this embodiment, the opening can be a group, which plays the role of observation and providing a lifting channel.

[0041] The lifting device is not shown in the attached figure and will be prepared on site during the construction process.

[0042] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A shield tunnel bottom slag cleaning device, comprising a body (102) arranged inside a tunnel soil layer (101), a cutter disc (103) rotatably arranged at the front end of the body (102), a plurality of cutter heads (104) fixedly mounted on the surface of the cutter disc (103), a plurality of soil discharge holes (105) evenly arranged on the surface of the cutter disc (103), characterized in that: A slag discharge mechanism (200) for conveying slag below the trolley to the TBM main slag discharge channel is provided on one side of the cutter head (103), and an excavation expansion mechanism (300) for expanding the tunnel excavation diameter is provided inside the cutter head (103); The excavation and enlarging mechanism (300) comprises a plurality of movable grooves (301) uniformly arranged on the surface of the cutter disc (103); a telescopic driver (302) is arranged inside the movable groove (301); a telescopic end of the telescopic driver (302) is fixedly connected to a connecting rod (303); a fixed end of the telescopic driver (302) is fixedly connected to an inner wall of the movable groove (301); a rotary cutter (304) is rotatably connected to the other end of the connecting rod (303); and the rotary cutter (304) can move along the radial direction of the cutter disc (103) to form milling-type cutting.

2. The shield tunnel bottom slag cleaning equipment according to claim 1, characterized in that: The slag discharge mechanism (200) comprises a hoop (201) symmetrically arranged inside the machine body (102), the top of each of the hoop (201) being fixedly connected to a rotating rod (202), both ends of the rotating rod (202) being rotatably connected to a fixing frame (203), a driving groove (204) being arranged inside the fixing frame (203), one end of one of the rotating rods (202) extending into the driving groove (204) and being fixedly connected to a first gear (205), and one end of the other rotating rod (202) extending into the driving groove (204) and being fixedly connected to a first gear (205), 4) inside and fixedly connected to the second gear (206), the first gear (205) is meshedly connected to the second gear (206), the gear shaft of the first gear (205) is fixedly connected to the output end of the rotating motor, the rotating motor is fixedly mounted on the inner wall of the driving groove (204), a positioning recessed block (207) is provided on the top of the fixing frame (203), a bottom plate (208) is fixedly provided on the inner lower end surface of the body (102) trolley, and the positioning recessed block (207) is connected to the bottom plate (208) through an adjustment component.

3. The shield tunnel bottom slag cleaning equipment according to claim 2 is characterized in that: The adjustment component comprises a guide rail (209) fixedly arranged at the lower end of the bottom plate (208), the guide rail (209) having a cross section arranged in an inverted "T" shape, a plurality of movable seats (210) being slidably arranged on the guide rail (209), the movable seats (210) having a cross section arranged in a U shape, a driving component for driving the movable seats (210) to slide being arranged between the movable seats (210) and the guide rail (209), and a lifting component for driving the clamp (201) to move up and down being arranged at the lower end of the movable seat (210).

4. The shield tunnel bottom slag cleaning equipment according to claim 3 is characterized in that: The driving assembly comprises a driving motor fixedly arranged on one side of the moving seat (210); an output end of the driving motor extends into the interior of the moving seat (210) and is fixedly connected to the rotating shaft of the third gear (211); fourth gears (212) are meshedly arranged on both sides of the third gear (211); a plurality of rollers (213) are rotatably connected inside the moving seat (210); the rollers (213) abut against the surface of the guide rail (209); the rollers (213) are symmetrically arranged on both sides of the guide rail (209); and the rollers (213) close to the driving motor are fixedly connected to the rotating shaft of the fourth gear (212).

5. The shield tunnel bottom slag cleaning equipment according to claim 4, characterized in that: The lifting assembly comprises symmetrically arranged side plates (214), wherein the side plates (214) are fixedly arranged at the bottom of the movable seat (210), and a mounting plate (215) is arranged between the two side plates (214). A plurality of screw holes are provided on the surface of the side plates (214), and mounting holes matching the screw holes are correspondingly provided on the surface of the mounting plate (215). A fastening bolt (216) for fixing the mounting plate (215) to the side plate (214) is passed through the interior of each of the mounting holes, and a nut is threadedly arranged at the end of the fastening bolt (216). A chain box (217) is fixedly arranged at the lower end of the mounting plate (215), and a chain (218) is arranged below the chain box (217). The lower end of the chain (218) is fixedly connected to a hook (219) matching the positioning recess (207).

6. The shield tunnel bottom slag cleaning equipment according to claim 2, characterized in that: The shape and specifications of the hoop (201) are compatible with the shape and specifications of the bottom of the tunnel soil layer (101); the cross-section of the bottom of the hoop (201) is arranged in an arc shape; and openings (220) for cooperating with the rotation of the hoop (201) are symmetrically provided on the surface of the bottom plate (208).

7. The shield tunnel bottom slag cleaning equipment according to claim 5, characterized in that: Grid-shaped protective plates (106) are symmetrically arranged between the bottom plate (208) and the blade disc (103); a crushing knife (107) is rotatably arranged between the two grid-shaped protective plates (106); one end of the rotating shaft of the crushing knife (107) extends into the interior of the grid-shaped protective plates (106) and is fixedly connected to the output end of a crushing motor; the crushing motor is arranged inside one of the grid-shaped protective plates (106).

8. The shield tunnel bottom slag cleaning equipment according to claim 5, characterized in that: A hook (221) is fixedly provided on the top of the chain collecting box (217), and a hanging ring (222) matching with the hook (221) is provided on the lower surface of the movable seat (210).

9. The shield tunnel bottom slag cleaning equipment according to claim 7, characterized in that: One side of the telescopic drive (302), the rotating motor, the driving motor and the crushing motor is provided with a corresponding controller.

10. A method for using a slag removal device at the bottom of a shield tunnel, characterized in that: The specific steps are as follows: S1. During the excavation process of the machine body (102), the debris generated during the tunnel excavation process moves between two grid-shaped protective plates (106), and the larger debris is initially crushed by the crushing blade (107); S2, the initially crushed slag is moved to the bottom of the bottom plate (208), the hoop (201) is in an open state at this time, and the rotating motor is started to drive the first gear (205) and the second gear (206) to mesh and drive, so that the two hoops (201) are moved closer to each other, and the slag is collected inside the hoop (201); S3. With the cooperation of the chain (218) and the chain collecting box (217), the hook (219) drives the clamp (201) to be lifted upward, and then the driving motor is started to drive the third gear (211) and the fourth gear (212) to mesh and transmit, so that the roller (213) rotates toward the side away from the cutter disc (103), so that the movable seat (210) and the clamp (201) move along the direction of the guide rail (209); when the movable seat (210) moves to the end of the other side of the guide rail (209), the rotating motor is reversed to drive the first gear (205) and the second gear (206) to mesh and transmit, so that the two clamps (201) move away from each other, and the slag can fall into the slag conveying equipment.

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