Tunnel slag discharge device and tunnel boring machine

Abstract

The present invention relates to the field of tunnel boring machines, and in particular to a tunnel slag discharge device and a tunnel boring machine. The tunnel slag discharge device includes a moving seat, a moving seat driving mechanism for driving the moving seat to move forward and backward, and the moving seat driving mechanism is arranged on a trailer; the tunnel slag discharge device also includes a conveyor and a material shifting mechanism, and the front end of the conveyor has a shoveling opening, and the conveyor transports the slag in the tunnel to the main conveying device of the tunnel boring machine or the location of the slag truck; the conveyor is arranged on the moving seat so that the moving seat can drive the conveyor to move forward and backward with the wheel cutter of the tunnel boring machine; the material shifting mechanism is arranged on the conveyor or the moving seat, and is used to shift the slag to the shoveling opening. The conveyor of the tunnel slag discharge device of the present invention can timely transport the slag cut off by the wheel cutter to the main conveying device or the slag truck, so as to achieve real-time slag discharge, and the slag is not easy to accumulate in the tunnel, and it is easier to clean the slag.

Description

Technical Field

[0001] The invention relates to the field of tunnel boring machines, and in particular to a tunnel slag discharge device and a tunnel boring machine. Background Art

[0002] Traditional circular cross-section tunnels generally use a tunnel boring machine with a circular cutter disc to excavate the entire cross-section. The area swept by the cutter disc rotating around the central axis is the circular tunnel cross-section. For rectangular cross-section, horseshoe cross-section or other special-shaped cross-section (non-circular cross-section) tunnels, tunnel boring machines usually use a combined cutter disc to excavate. For example, for arch tunnels, tunneling is usually carried out by cooperating with a circular main cutter disc and wheel cutter discs on both sides of the rear of the main cutter disc. In order to facilitate the transportation of the slag cut by the main cutter disc and the wheel cutter disc, the tunnel boring machine is provided with a main conveying device for conveying the slag. The main conveying device is used to convey the slag cut by the main cutter disc from front to back, including a main conveyor belt conveyor on the rear side of the main cutter disc arranged from front to back and a rear supporting belt conveyor on a trailer equipped with the tunnel boring machine. The slag cut by the main cutter disc is sequentially conveyed by the main conveyor belt conveyor and the rear supporting belt conveyor, and then transported out of the tunnel by a slag truck. The debris cut off by the wheel cutter is usually first piled up in the tunnel, and then the construction workers use shovels and other auxiliary tools to pour the debris into the dump truck, and finally the dump truck transports the debris out of the tunnel. This method of transporting debris is inefficient and has high labor costs.

[0003] The Chinese invention patent application with application publication number CN113586073A discloses a continuous excavation device and a full-face tunnel boring machine, which includes a circular cutter disc and a wheel cutter disc. The wheel cutter disc is located at the rear side of the circular cutter disc and cooperates with the circular cutter disc to realize the one-time excavation and forming of the special-shaped cross-section tunnel. The excavation process of the wheel cutter disc is as follows: first, the push rod of the main oil cylinder extends to push the slide box and other components connected to the slide box to slide forward a certain distance on the rear main beam, and then the support shoe presses against the side wall of the tunnel under the action of the internal oil cylinder to fix the slide box and provide the necessary reaction force for the normal operation of the wheel cutter disc. After completing the above actions, the main oil cylinder releases pressure so that the push rod and the cylinder body can slide relative to each other under the action of external tension or pressure. The swing oil cylinder extends to adjust the position of the wheel cutter disc so that the wheel cutter disc is located on the excavation surface. Then the swing oil cylinder is locked so that the relative positions between the swing oil cylinder, the slider, the support arm and the wheel cutter disc remain unchanged and form a fixed whole. The thrust cylinder extends, pushing the wheeled cutter forward to achieve excavation, until the thrust cylinder works to the end of the stroke. The slag is taken away from the excavation surface as the wheeled cutter rolls, flows into the elevator through the slag guide trough, and is transported by the elevator to the belt conveyor in the rear main beam, and finally transported to the outside of the tunnel. After the wheeled cutter completes the above excavation action, the thrust cylinder retracts, and the wheeled cutter returns to the starting position to prepare for the next excavation action.

[0004] In the above scheme, the hoist is used as a slag cleaning device to clean the slag cut by the wheel cutter, replacing the traditional cleaning method relying on manpower, which is highly efficient and saves labor costs. However, when the wheel cutter moves forward to realize excavation, the hoist is installed on the main beam. When the slide box moves, the hoist keeps its position unchanged. Only when the main beam moves forward, the hoist cleans the slag in the tunnel. The problem with this slag cleaning method is that the slag cut by the wheel cutter accumulates in the tunnel and is not cleaned in time. When the slag accumulates a lot, it will be scattered in a large area and is not easy to clean. In addition, the above-mentioned wheel cutter moves back and forth during cutting, which can easily break up the accumulated slag, further increasing the difficulty of cleaning. Summary of the invention

[0005] The purpose of the present invention is to provide a tunnel slag discharge device to solve the problem that the existing slag cleaning device does not clean the slag in time and the slag is not easy to clean. The present invention also provides a tunnel boring machine including the tunnel slag discharge device.

[0006] The technical solution of the tunnel slag discharge device of the present invention is:

[0007] The tunnel slag discharge device includes a moving seat installed on a trailer equipped behind the tunnel boring machine for forward and backward guiding movement, and a moving seat driving mechanism for driving the moving seat to move forward and backward. The moving seat driving mechanism is used to be set on the trailer; the tunnel slag discharge device also includes a conveyor and a material shifting mechanism. The front end of the conveyor has a shoveling port, and the conveyor is used to transport the slag in the tunnel to the main conveying device of the tunnel boring machine or the location of the slag truck; the conveyor is configured on the moving seat so that the moving seat can drive the conveyor to move forward and backward with the wheel cutter head of the tunnel boring machine; the material shifting mechanism is set on the conveyor or the moving seat, and is used to shift the slag to the shoveling port.

[0008] Beneficial effect: The conveyor of the tunnel slag discharge device is arranged on a moving seat, and the moving seat is installed on a trailer for forward and backward guiding movement. Under the drive of the moving seat driving mechanism, the moving seat can drive the conveyor to move forward and backward with the wheel cutter of the tunnel boring machine. The material shifting mechanism shifts the slag cut by the wheel cutter to the shoveling port of the conveyor, and the slag is transported to the main conveying device or the slag truck through the conveyor, and then transported to the outside of the tunnel by the main conveying device or the slag truck. The conveyor of the tunnel slag discharge device of the present invention can timely transport the slag cut by the wheel cutter to the main conveying device or the slag truck, so as to achieve real-time slag discharge, and the slag is not easy to accumulate in the tunnel, and it is easier to clean the slag.

[0009] Furthermore, the moving seat includes a moving seat body and a rotating seat body rotatably assembled on the moving seat body. The conveyor is installed on the rotating seat body so that the conveyor can swing left and right relative to the moving seat body to change the position of the shoveling port. A rotating drive mechanism is provided on the moving seat, and the rotating drive mechanism drives the rotating seat body to rotate relative to the moving seat body.

[0010] Beneficial effect: When a tunnel boring machine is excavating a tunnel, due to geological environment restrictions and other reasons, the tunnel will inevitably have turns. At this time, the direction of the shoveling mouth of the conveyor has an angle with the moving direction of the wheel cutter disc. The slag generated by the wheel cutter disc cutting and excavation is not easy to be cleaned up by the conveyor. In order to avoid the above situation, the rotating seat body is driven to rotate relative to the moving seat body through a rotary drive mechanism. The conveyor can swing left and right relative to the moving seat body to change the position of the shoveling mouth, so that the shoveling mouth of the conveyor is directed in the same direction as the moving direction of the wheel cutter disc, and the slag generated by the wheel cutter disc cutting and excavation is easier to be cleaned up by the conveyor.

[0011] Furthermore, the rotary drive mechanism comprises a rotary drive cylinder, one end of which is hinged on the movable seat body, and the other end of which is hinged on the rotating seat body. The rotary drive cylinder drives the rotating seat body to rotate through telescopic movement.

[0012] Beneficial effects: The rotary drive cylinder is used to drive the rotary seat body to rotate, and the structure is simple and easy to install.

[0013] Furthermore, the conveyor is arranged on the rotating seat body to swing up and down, and a conveyor swing driving mechanism for adjusting the swing angle of the conveyor is arranged between the conveyor and the rotating seat body.

[0014] Beneficial effect: The conveyor is set on the rotating seat to swing up and down. Construction personnel can control the conveyor swing drive mechanism to adjust the swing angle of the conveyor according to the result of whether the conveyor transports the debris to the main conveying device or the debris truck, so that the conveyor can smoothly transport the debris to the main conveying device or the debris truck.

[0015] Furthermore, the conveyor is arranged on a moving seat for up and down swinging, and a conveyor swing driving mechanism for adjusting the swing angle of the conveyor is arranged between the conveyor and the moving seat.

[0016] Beneficial effect: The conveyor is set on a moving seat to swing up and down. Construction personnel can control the conveyor swing drive mechanism to adjust the swing angle of the conveyor according to the result of whether the conveyor transports the slag to the main conveying device or the slag truck, so that the conveyor can smoothly transport the slag to the main conveying device or the slag truck.

[0017] Furthermore, the conveyor is hinged to the moving seat, and the conveyor swing driving mechanism is a conveyor telescopic driving mechanism that adjusts the posture of the conveyor to make the conveyor swing relative to the moving seat.

[0018] Beneficial effects: The conveyor swing drive mechanism is a conveyor telescopic drive mechanism, which has a simple structure and is easy to install.

[0019] Furthermore, the middle part of the conveyor is hinged to the moving seat, and the conveyor swing driving mechanism is arranged at the rear part of the conveyor.

[0020] Beneficial effect: The conveyor swing driving mechanism is arranged at the rear of the conveyor, and it is more labor-saving when the conveyor swing driving mechanism drives the conveyor to swing.

[0021] Furthermore, the tunnel slag discharge device also includes a transfer machine, which is arranged on a mobile seat. The transfer machine has a transfer machine feed port for receiving the slag transported from the conveyor discharge port of the conveyor. The transfer machine is used to transfer the slag transported by the conveyor to the main conveying device of the tunnel boring machine or the location of the slag truck.

[0022] Beneficial effect: The setting of the transfer machine makes the conveyor include only one straight conveying section for straightly conveying the slag, which can simplify the structure of the conveyor and make the conveyor processing and installation more convenient.

[0023] Furthermore, the transfer machine is arranged on the moving seat to swing up and down, and a transfer machine swing driving mechanism for driving the transfer machine to swing is arranged between the transfer machine and the moving seat.

[0024] Beneficial effect: The transfer machine is set on a moving seat to swing up and down. Construction workers can control the transfer machine's swing drive mechanism to adjust the transfer machine's swing angle according to the result of the transfer machine transporting the debris to the main conveying device or the debris truck, so that the transfer machine can smoothly transport the debris to the main conveying device or the debris truck.

[0025] Furthermore, the transfer machine extends left and right, one end of the transfer machine is hinged on the moving seat, and the transfer machine swing driving mechanism drives the other end of the transfer machine to swing the transfer machine.

[0026] Beneficial effect: The transfer machine adopts this arrangement, which makes it more convenient and quick to adjust the swing angle of the transfer machine.

[0027] Furthermore, the material-moving mechanism includes a mechanical arm, which is arranged at the front end of the conveyor, and the mechanical arm has a bucket for moving the debris in the tunnel to the debris shoveling opening.

[0028] Beneficial effect: By controlling the movement of the mechanical arm, the bucket of the mechanical arm pushes the debris in the tunnel to the shoveling port of the conveyor, and the debris in the tunnel is cleaned more cleanly.

[0029] The technical solution of the tunnel boring machine of the present invention is:

[0030] The tunnel boring machine includes a rear supporting trailer, a main cutter disc at the front end, a wheel cutter disc at the rear side of the main cutter disc for cooperating with the main cutter disc to cut out a special-shaped cross-section tunnel, a wheel cutter disc mounting beam, and a wheel cutter disc driving mechanism for driving the wheel cutter disc to move forward and backward relative to the wheel cutter disc mounting beam. The wheel cutter disc is arranged on the wheel cutter disc mounting beam, and the wheel cutter disc mounting beam is connected in series with the trailer so that the wheel cutter disc mounting beam can drive the trailer to move forward. The tunnel boring machine also includes a tunnel slag discharge device, which includes a front and rear guide movable mounted on the trailer supporting the tunnel boring machine. A moving seat and a moving seat driving mechanism for driving the moving seat to move forward and backward, wherein the moving seat driving mechanism is arranged on a trailer; the tunnel slag discharge device also includes a conveyor and a material shifting mechanism, wherein the front end of the conveyor is provided with a shoveling port, and the conveyor transports the slag in the tunnel to the main conveying device of the tunnel boring machine or the location of the slag truck; the conveyor is arranged on the moving seat so that the moving seat can drive the conveyor to move forward and backward along with the wheel cutter head of the tunnel boring machine; the material shifting mechanism is arranged on the conveyor or the moving seat, and is used to shift the slag to the shoveling port, and the wheel cutter head and the moving seat can move synchronously.

[0031] Beneficial effect: The conveyor of the tunnel slag discharge device of the tunnel boring machine is arranged on a moving seat, and the moving seat is installed on a trailer for forward and backward guiding movement. Under the drive of the moving seat driving mechanism, the moving seat can drive the conveyor to move forward and backward synchronously with the wheel cutter disc of the tunnel boring machine. The material shifting mechanism shifts the slag cut by the wheel cutter disc to the shoveling port of the conveyor, and the slag is transported to the main conveying device or the slag truck through the conveyor, and then transported to the outside of the tunnel by the main conveying device or the slag truck. The conveyor of the tunnel boring machine of the present invention can timely transport the slag cut by the wheel cutter disc to the main conveying device or the slag truck, so as to achieve real-time slag discharge, and the slag is not easy to accumulate in the tunnel, and it is easier to clean the slag.

[0032] Furthermore, the moving seat includes a moving seat body and a rotating seat body rotatably assembled on the moving seat body. The conveyor is installed on the rotating seat body so that the conveyor can swing left and right relative to the moving seat body to change the position of the shoveling port. A rotating drive mechanism is provided on the moving seat, and the rotating drive mechanism drives the rotating seat body to rotate relative to the moving seat body.

[0033] Beneficial effect: When a tunnel boring machine is excavating a tunnel, due to geological environment restrictions and other reasons, the tunnel will inevitably have turns. At this time, the direction of the shoveling mouth of the conveyor has an angle with the moving direction of the wheel cutter disc. The slag generated by the wheel cutter disc cutting and excavation is not easy to be cleaned up by the conveyor. In order to avoid the above situation, the rotating seat body is driven to rotate relative to the moving seat body through a rotary drive mechanism. The conveyor can swing left and right relative to the moving seat body to change the position of the shoveling mouth, so that the shoveling mouth of the conveyor is directed in the same direction as the moving direction of the wheel cutter disc, and the slag generated by the wheel cutter disc cutting and excavation is easier to be cleaned up by the conveyor.

[0034] Furthermore, the rotary drive mechanism comprises a rotary drive cylinder, one end of which is hinged on the movable seat body, and the other end of which is hinged on the rotating seat body. The rotary drive cylinder drives the rotating seat body to rotate through telescopic movement.

[0035] Beneficial effects: The rotary drive cylinder is used to drive the rotary seat body to rotate, and the structure is simple and easy to install.

[0036] Furthermore, the conveyor is arranged on the rotating seat body to swing up and down, and a conveyor swing driving mechanism for adjusting the swing angle of the conveyor is arranged between the conveyor and the rotating seat body.

[0037] Beneficial effect: The conveyor is set on the rotating seat to swing up and down. Construction personnel can control the conveyor swing drive mechanism to adjust the swing angle of the conveyor according to the result of whether the conveyor transports the debris to the main conveying device or the debris truck, so that the conveyor can smoothly transport the debris to the main conveying device or the debris truck.

[0038] Furthermore, the conveyor is arranged on a moving seat for up and down swinging, and a conveyor swing driving mechanism for adjusting the swing angle of the conveyor is arranged between the conveyor and the moving seat.

[0039] Beneficial effect: The conveyor is set on a moving seat to swing up and down. Construction personnel can control the conveyor swing drive mechanism to adjust the swing angle of the conveyor according to the result of whether the conveyor transports the slag to the main conveying device or the slag truck, so that the conveyor can smoothly transport the slag to the main conveying device or the slag truck.

[0040] Furthermore, the conveyor is hinged to the moving seat, and the conveyor swing driving mechanism is a conveyor telescopic driving mechanism that adjusts the posture of the conveyor to make the conveyor swing relative to the moving seat.

[0041] Beneficial effects: The conveyor swing drive mechanism is a conveyor telescopic drive mechanism, which has a simple structure and is easy to install.

[0042] Furthermore, the middle part of the conveyor is hinged to the moving seat, and the conveyor swing driving mechanism is arranged at the rear part of the conveyor.

[0043] Beneficial effect: The conveyor swing driving mechanism is arranged at the rear of the conveyor, and it is more labor-saving when the conveyor swing driving mechanism drives the conveyor to swing.

[0044] Furthermore, the tunnel slag discharge device also includes a transfer machine, which is arranged on a mobile seat. The transfer machine has a transfer machine feed port for receiving the slag transported from the conveyor discharge port of the conveyor. The transfer machine is used to transfer the slag transported by the conveyor to the main conveying device of the tunnel boring machine or the location of the slag truck.

[0045] Beneficial effect: The setting of the transfer machine makes the conveyor include only one straight conveying section for straightly conveying the slag, which can simplify the structure of the conveyor and make the conveyor processing and installation more convenient.

[0046] Furthermore, the transfer machine is arranged on the moving seat to swing up and down, and a transfer machine swing driving mechanism for driving the transfer machine to swing is arranged between the transfer machine and the moving seat.

[0047] Beneficial effect: The transfer machine is set on a moving seat to swing up and down. Construction workers can control the transfer machine's swing drive mechanism to adjust the transfer machine's swing angle according to the result of the transfer machine transporting the debris to the main conveying device or the debris truck, so that the transfer machine can smoothly transport the debris to the main conveying device or the debris truck.

[0048] Furthermore, the transfer machine extends left and right, one end of the transfer machine is hinged on the moving seat, and the transfer machine swing driving mechanism drives the other end of the transfer machine to swing the transfer machine.

[0049] Beneficial effect: The transfer machine adopts this arrangement, which makes it more convenient and quick to adjust the swing angle of the transfer machine.

[0050] Furthermore, the material-moving mechanism includes a mechanical arm, which is arranged at the front end of the conveyor, and the mechanical arm has a bucket for moving the debris in the tunnel to the debris shoveling opening.

[0051] Beneficial effect: By controlling the movement of the mechanical arm, the bucket of the mechanical arm pushes the debris in the tunnel to the shoveling port of the conveyor, and the debris in the tunnel is cleaned more cleanly. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a schematic diagram of the structure of the tunnel slag discharge device in Example 1 of the tunnel boring machine of the present invention;

[0053] Figure 2 yes Figure 1 Sectional view at the middle BB;

[0054] Figure 3 yes Figure 1 Section view at AA in the middle.

[0055] Explanation of the reference numerals: 1. trailer; 2. tunnel slag discharge device; 3. moving seat; 301. moving seat body; 302. rotating seat body; 4. moving seat driving mechanism; 401. moving seat cylinder; 5. conveyor; 501. scraper conveyor; 6. material discharging mechanism; 601. mechanical arm; 6011. bucket; 7. muck truck; 8. slag shoveling port; 9. transfer machine; 901. conveyor belt; 10. rotating shaft; 11. rotating driving mechanism; 111. rotating driving cylinder; 12. pulley; 13. slide rail; 14. conveyor swing driving mechanism; 141. conveyor telescopic driving mechanism; 1411. scraper conveyor cylinder; 15. transfer machine swing driving mechanism; 151. transfer machine telescopic driving mechanism; 1511. transfer machine cylinder. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0057] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0058] It should be noted that, in the specific implementation of the present invention, the terms that may appear, such as "first" and "second", etc., are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of such an actual relationship or order between these entities or operations. Moreover, the terms that may appear, such as "include", "comprise" or any other variants thereof, are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the phrase "including a ..." and other defined elements that may appear do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0059] In the description of the present invention, unless otherwise clearly specified and limited, the terms that may appear, such as "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0060] In the description of the present invention, unless otherwise clearly specified and limited, the term "provided with" that may appear should be understood in a broad sense. For example, the object "provided with" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or an inseparable connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] The present invention is further described in detail below in conjunction with embodiments.

[0062] Embodiment 1 of the tunnel boring machine provided in the present invention:

[0063] like Figures 1 to 3 As shown, the tunnel boring machine includes a rear-mounted trailer 1, a main cutter disc at the front end, a wheel cutter disc at the rear side of the main cutter disc for cooperating with the main cutter disc to cut out a special-section tunnel, a wheel cutter disc mounting beam, and a wheel cutter disc driving mechanism for driving the wheel cutter disc to move forward and backward relative to the wheel cutter disc mounting beam.

[0064] A sliding sleeve is provided on the wheel cutter disc mounting beam, and the wheel cutter disc is arranged on the sliding sleeve. When the sliding sleeve slides forward and backward, the sliding sleeve can drive the wheel cutter disc to move forward and backward. The wheel cutter disc mounting beam is driven forward by the main engine of the tunnel boring machine, and the wheel cutter disc mounting beam is connected in series with the trailer 1 so that the wheel cutter disc mounting beam can drive the trailer 1 to move forward.

[0065] The wheel cutter disc is used to cooperate with the main cutter disc to cut and excavate a tunnel with a special-shaped section (non-circular section). When the wheel cutter disc is cutting and excavating, the wheel cutter disc moves back and forth under the drive of the wheel cutter disc drive mechanism to perform cutting and excavation actions.

[0066] The structures of the above-mentioned wheel cutter disc, wheel cutter disc drive mechanism and wheel cutter disc mounting beam are prior art. For example, the Chinese invention patent application with application publication number CN113586073A mentioned in the background technology has a corresponding structure disclosed, which will not be elaborated in detail in this embodiment.

[0067] The tunnel boring machine also includes a main conveying device for conveying the debris cut by the main cutter disc from front to rear. The main conveying device includes a main conveyor belt conveyor on the rear side of the main cutter disc and a rear conveyor belt conveyor on a trailer 1 provided at the rear of the tunnel boring machine, which are arranged in sequence from front to rear. The debris cut by the main cutter disc is conveyed by the main conveyor belt conveyor and the rear conveyor belt conveyor in sequence, and then transported out of the tunnel by a dump truck 7.

[0068] In addition, in order to prevent the debris generated by wheeled cutter cutting and excavation from accumulating in the tunnel and to transport the debris away from the tunnel in time, the tunnel boring machine also includes a tunnel slag discharge device 2. The tunnel slag discharge device 2 includes a moving seat 3 installed on the trailer 1 for forward and backward guiding movement, a moving seat driving mechanism 4 for driving the moving seat 3 to move forward and backward, a conveyor 5 arranged on the moving seat 3, and a material shifting mechanism 6 arranged on the conveyor 5. The conveyor 5 is used to transport the debris in the tunnel to the location of the slag truck 7. The front end of the conveyor 5 has a slag shoveling port 8, and the material shifting mechanism 6 is used to shift the debris to the slag shoveling port 8 of the conveyor 5.

[0069] When the tunnel slag discharge device 2 is cleaning the slag in the tunnel, the moving seat 3 and the wheeled cutter disc move synchronously, that is, when the wheeled cutter disc moves forward for cutting and excavation under the drive of the wheeled cutter disc drive mechanism, the moving seat 3 will move forward synchronously with the wheeled cutter disc under the drive of the moving seat drive mechanism 4, and then the conveyor 5 will move forward under the drive of the moving seat 3, and the material shifting mechanism 6 will shift the slag cut by the wheeled cutter disc to the shoveling port 8 of the conveyor 5, and then the slag will be transported to the slag truck 7 by the conveyor 5. When the wheeled cutter disc moves backward to the starting position under the drive of the wheeled cutter disc drive mechanism, the moving seat 3 will move backward under the drive of the moving seat drive mechanism 4, and then the conveyor 5 will move backward under the drive of the moving seat 3, and the conveyor 5 will not interfere with the wheeled cutter disc. The movable seat 3 and the wheeled cutter disc move synchronously, so that the slag cut by the wheeled cutter disc can be transported to the main conveying device or the slag truck 7 in time, so that the slag can be discharged in real time, the slag is not easy to accumulate in the tunnel, and the slag is easier to clean.

[0070] In this embodiment, the conveyor 5 is a scraper conveyor 501, which is a common conveyor in the prior art, and its specific structure will not be described in detail.

[0071] In this embodiment, the material transfer mechanism 6 includes a robotic arm 601, which is hinged at the front end of the scraper conveyor 501. The joints of the robotic arm 601 can be driven by a cylinder to enable the robotic arm 601 to move flexibly. In addition, a bucket 6011 is provided at the front end of the robotic arm 601. The movement of the robotic arm 601 causes the bucket 6011 to transfer the debris to the shoveling port 8 of the scraper conveyor 501, thereby making it easier for the debris in the tunnel to be transferred to the scraper conveyor 501.

[0072] The tunnel slag discharge device 2 also includes a transfer machine 9 extending left and right, the transfer machine 9 includes a conveyor belt 901 for transporting slag, the transfer machine 9 is arranged on the moving seat 3, and the transfer machine 9 has a transfer machine feed port and a transfer machine discharge port, the transfer machine feed port is used to receive the slag transported out of the conveyor discharge port of the scraper conveyor 501, and the slag transported by the scraper conveyor 501 is transported to the slag truck 7 through the transfer machine discharge port. The arrangement of the transfer machine 9 enables the scraper conveyor 501 to include only one linear conveying section for linearly conveying the slag, which can simplify the structure of the scraper conveyor 501, and the processing and installation of the scraper conveyor 501 is more convenient.

[0073] like Figure 2 , Figure 3 As shown, the moving seat 3 includes a moving seat body 301 and a rotating seat body 302 rotatably assembled on the moving seat body 301, and the scraper conveyor 501 and the transfer machine 9 are both arranged on the rotating seat body 302. Specifically, a rotating shaft 10 is arranged on the moving seat body 301, and the rotating seat body 302 is rotatably assembled on the moving seat body 301 with the rotating shaft 10 as the rotation center. In addition, a rotating drive mechanism 11 is arranged on the moving seat 3. In this embodiment, the rotating drive mechanism 11 includes a rotating drive cylinder 111, and the rotating drive cylinder 111 is specifically a telescopic oil cylinder. One end of the rotating drive cylinder 111 is hinged on the rotating seat body 302, and the other end is hinged on the moving seat body 301. The telescopic movement of the piston rod of the rotating drive cylinder 111 can drive the rotating seat body 302 to rotate. In other embodiments, the rotating drive cylinder can be replaced by a cylinder, a screw nut mechanism, etc. When the tunnel boring machine is excavating a tunnel, due to geological environment restrictions and other reasons, the tunnel will inevitably have turns. At this time, the direction of the shoveling port 8 of the scraper conveyor 501 is at an angle to the moving direction of the wheel cutter disc. The slag generated by the cutting and excavation of the wheel cutter disc is not easy to be cleaned up by the scraper conveyor 501. In order to avoid the above situation, the rotating seat 302 is driven to rotate relative to the moving seat 301 by rotating the drive cylinder 111. The scraper conveyor 501 can swing left and right relative to the moving seat 301 to change the position of the shoveling port 8, so that the shoveling port 8 of the scraper conveyor 501 is directed to be consistent with the moving direction of the wheel cutter disc, and the slag generated by the cutting and excavation of the wheel cutter disc is easier to be cleaned up by the scraper conveyor 501.

[0074] like Figure 1 As shown, a pulley 12 is provided on the lower side of the moving seat body 301 of the moving seat 3, and a slide rail 13 is provided on the trailer 1. The moving seat body 301 moves forward and backward along the slide rail 13 through the pulley 12, thereby realizing the forward and backward guided movement of the moving seat 3 installed on the trailer 1.

[0075] In this embodiment, the moving seat driving mechanism 4 includes a moving seat cylinder 401, one end of the moving seat cylinder 401 is hinged on the trailer 1, and the other end is hinged to the moving seat body 301. When the piston rod of the moving seat cylinder 401 is extended or retracted, it can drive the moving seat 3 to move forward and backward.

[0076] More specifically, the scraper conveyor 501 is hinged with the rotating seat body 302, and the scraper conveyor 501 is set on the rotating seat body 302 to swing up and down. A conveyor swing drive mechanism 14 for adjusting the swing angle of the scraper conveyor 501 is provided between the conveyor 5 and the rotating seat body 302. The conveyor swing drive mechanism 14 is a conveyor telescopic drive mechanism 141 for adjusting the posture of the scraper conveyor 501 so that the scraper conveyor 501 swings relative to the moving seat 3. In this embodiment, the conveyor telescopic drive mechanism 141 is a scraper conveyor cylinder 1411, and the middle part of the scraper conveyor 501 is hinged with the rotating seat body 302. One end of the scraper conveyor cylinder 1411 is hinged on the rotating seat body 302, and the other end is hinged to the rear of the scraper conveyor 501.

[0077] In addition, the transfer machine 9 is hinged to the rotating seat body 302, and the transfer machine 9 is set on the rotating seat body 302 to swing up and down. A transfer machine swing driving mechanism 15 for driving the transfer machine 9 to swing is set between the transfer machine 9 and the rotating seat body 302. The transfer machine swing driving mechanism 15 is a transfer machine telescopic driving mechanism 151 that adjusts the posture of the transfer machine 9 so that the transfer machine 9 swings relative to the moving seat 3. In this embodiment, the transfer machine telescopic driving mechanism 151 is a transfer machine oil cylinder 1511, the front end of the transfer machine 9 is hinged to the rotating seat body 302, one end of the transfer machine oil cylinder 1511 is hinged to the rotating seat body 302, and the other end is hinged to the transfer machine 9.

[0078] When the piston rod of the scraper conveyor oil cylinder 1411 is extended or retracted, the inclination angle of the scraper conveyor 501 can be adjusted. When the piston rod of the transfer machine oil cylinder 1511 is extended or retracted, the inclination angle of the transfer machine 9 can be adjusted. By adjusting the inclination angle of the scraper conveyor 501 and the inclination angle of the transfer machine 9, the slag in the tunnel can be smoothly transported to the slag truck 7. In other embodiments, the slag cut off by the wheeled cutter head can also be transported to the main conveying device, and then directly transported out of the tunnel by the main conveying device. When this slag transportation method is adopted, it is necessary to adjust the inclination angle of the scraper conveyor 501 and the inclination angle of the transfer machine 9 so that the slag in the tunnel can be smoothly transported to the main conveying device.

[0079] In this embodiment, there are two sets of tunnel slag discharge devices 2 and they are arranged symmetrically on the trailer 1. In other embodiments, the number and layout of the tunnel slag discharge devices can be adjusted according to the design of the wheel cutter head.

[0080] It should be noted that the oil cylinder for realizing the linear telescopic motion in this embodiment can be replaced by an air cylinder, a screw nut mechanism, a linear motor and the like.

[0081] The process of transporting slag by the tunnel slag discharge device 2 is:

[0082] When the wheeled cutter disc moves forward for cutting and excavation, the moving seat 3 moves forward synchronously with the wheeled cutter disc under the drive of the moving seat oil cylinder 401, and then the scraper conveyor 501 also moves forward synchronously with the moving seat 3 and the wheeled cutter disc. The slag cut by the wheeled cutter disc enters the scraper conveyor 501 through the shovel opening 8 of the scraper conveyor 501 under the manipulation of the mechanical arm 601. The slag is sent to the slag truck 7 through the scraper conveyor 501 and the transfer machine 9, and then transported out of the tunnel by the slag truck 7. When the wheeled cutter disc moves backward, the moving seat 3 moves backward under the drive of the moving seat oil cylinder 401, and then the scraper conveyor 501 moves backward under the drive of the moving seat 3. The scraper conveyor 501 does not interfere with the wheeled cutter disc, and the scraper conveyor 501 cooperates with the mechanical arm 601 to transport the slag generated in this process to the transfer machine 9, and the slag is transported out of the tunnel through the transfer machine 9 and the slag truck 7.

[0083] Embodiment 2 of the tunnel boring machine of the present invention is different from embodiment 1 in that, in this embodiment, the wheel cutter disc is mounted on the sliding sleeve, and a cutter disc drive cylinder is arranged on the wheel cutter disc mounting beam, and the cutter disc drive cylinder pushes the wheel cutter disc, so that the sliding sleeve and the wheel cutter disc move forward together to perform cutting operation, when the sliding sleeve moves forward to the maximum distance relative to the wheel cutter disc mounting beam, the cutter disc drive cylinder extends to the limit position, at this time, the pressure chamber of the cutter disc drive cylinder is depressurized, the wheel cutter disc mounting beam moves forward under the drive of the tunnel boring machine mainframe, the wheel cutter disc mounting beam moves forward relative to the sliding sleeve, the cutter disc drive cylinder shortens, the wheel cutter disc mounting beam stops after moving into position, the cutter disc drive cylinder can extend to drive the wheel cutter disc to move forward again, and the wheel cutter disc can continuously step forward according to the above steps without retreating. The conveyor moves synchronously with the wheel cutter disc, the trailer is driven by the tunnel boring machine mainframe, the trailer is connected to the rear end of the wheel cutter disc drive cylinder, and when the wheel cutter disc moves forward relative to the wheel cutter disc mounting beam, the conveyor moves forward relative to the trailer. When the wheel cutter disc does not move and the wheel cutter disc mounting beam moves forward, the wheel cutter disc mounting beam drives the trailer to move forward. At this time, the conveyor does not move in place, and the moving seat cylinder driving the moving seat is shortened.

[0084] Embodiment 3 of the tunnel boring machine of the present invention is different from Embodiment 1 in that the transfer machine transports the slag from the scraper conveyor to the rear supporting belt conveyor, and then the slag truck transports the slag to the outside of the tunnel.

[0085] Embodiment 4 of the tunnel boring machine of the present invention is different from Embodiment 1 in that the moving seat only includes a moving seat body, and the scraper conveyor and the transfer machine are both arranged on the moving seat body. The forward and backward movement of the moving seat body drives the forward and backward movement of the scraper conveyor and the transfer machine.

[0086] Embodiment 5 of the tunnel boring machine of the present invention is different from Embodiment 1 in that the moving seat includes a moving seat body and a rotating seat body rotatably assembled on the moving seat body, the moving seat body is provided with a rotating shaft, the rotating seat body is rotatably assembled on the moving seat body with the rotating shaft as the rotation center, and corresponding pin holes are provided on the rotating seat body and the moving seat body. After the construction personnel manually rotate the rotating seat body into place, they insert the pin to lock the rotating seat body and the moving seat body.

[0087] Embodiment 6 of the tunnel boring machine of the present invention is different from Embodiment 1 in that the scraper conveyor is fixed on the moving seat so that the scraper conveyor cannot adjust its own inclination angle, and the inclination angle of the scraper conveyor is fixed. In other embodiments, the transporter is fixed on the moving seat so that the transporter cannot adjust its own inclination angle, and the inclination angle of the transporter is fixed. Or in other implementations, the scraper conveyor and the transporter can both be fixed on the moving seat so that the scraper conveyor and the transporter cannot adjust their own inclination angles, and the inclination angles of the scraper conveyor and the transporter are fixed.

[0088] Embodiment 7 of the tunnel boring machine of the present invention is different from Embodiment 1 in that the scraper conveyor includes two straight conveying sections, and the two straight conveying sections are arranged at right angles. In this embodiment, the slag generated by the cutting of the wheel cutter disc is directly transported to the slag truck via the two straight conveying sections.

[0089] Embodiment 8 of the tunnel boring machine of the present invention is different from Embodiment 1 in that the material shifting mechanism includes a star wheel rotatably mounted at the shoveling port of the scraper conveyor, the star wheel includes a disc body and shifting plates spaced around the edge of the disc body, and when the star wheel rotates, the slag is shifted to the scraper conveyor through the shifting plates.

[0090] In the embodiment of the tunnel slag discharge device of the present invention, the structure of the tunnel slag discharge device is the same as the structure of the tunnel slag discharge device in any embodiment of the tunnel boring machine described above, and will not be described in detail here.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A tunnel boring machine, comprising a rear supporting trailer, a main cutter disc at the front end, a wheel cutter disc at the rear side of the main cutter disc for cooperating with the main cutter disc to cut out a tunnel with a special cross-section, a wheel cutter disc mounting beam, and a wheel cutter disc driving mechanism for driving the wheel cutter disc to move forward and backward relative to the wheel cutter disc mounting beam, the wheel cutter disc is arranged on the wheel cutter disc mounting beam, the wheel cutter disc mounting beam is connected in series with the trailer so that the wheel cutter disc mounting beam can drive the trailer to move forward, characterized in that: The tunnel slag discharge device comprises a moving seat installed on a trailer matched with a tunnel boring machine for forward and backward guiding movement, a moving seat driving mechanism for driving the moving seat to move forward and backward, a conveyor and a material shifting mechanism. The moving seat driving mechanism is arranged on the trailer. The front end of the conveyor has a slag shoveling opening. The conveyor is used to transport the slag in the tunnel to the main conveying device of the tunnel boring machine or the location of the slag truck. The conveyor is arranged on the moving seat so that the moving seat can drive the conveyor to move synchronously forward and backward with the wheel cutter head of the tunnel boring machine. The material shifting mechanism is arranged on the conveyor or the moving seat and is used to shift the slag to the shoveling opening. The moving seat comprises a moving seat body and a rotating seat body rotatably assembled on the moving seat body. The conveyor is installed on the rotating seat body and can swing left and right to change the position of the shoveling opening.

2. The tunnel boring machine according to claim 1, characterized in that: The movable seat is provided with a rotation driving mechanism, and the rotation driving mechanism drives the rotating seat body to rotate relative to the movable seat body.

3. The tunnel boring machine according to claim 2, characterized in that: The rotary drive mechanism comprises a rotary drive cylinder, one end of which is hinged on the movable seat body, and the other end of which is hinged on the rotary seat body. The rotary drive cylinder drives the rotary seat body to rotate through telescopic movement.

4. The tunnel boring machine according to claim 2, characterized in that: The conveyor is arranged on the rotating seat body for swinging up and down, and a conveyor swing driving mechanism for adjusting the swing angle of the conveyor is arranged between the conveyor and the rotating seat body.

5. The tunnel boring machine according to any one of claims 1 to 3, characterized in that: The conveyor is arranged on a moving seat for swinging up and down, and a conveyor swing driving mechanism for adjusting the swing angle of the conveyor is arranged between the conveyor and the moving seat.

6. The tunnel boring machine according to claim 5, characterized in that: The conveyor is hinged to the moving seat, and the conveyor swing driving mechanism is a conveyor telescopic driving mechanism for adjusting the posture of the conveyor to make the conveyor swing relative to the moving seat.

7. The tunnel boring machine according to claim 5, characterized in that: The middle part of the conveyor is hinged with the moving seat, and the conveyor swing driving mechanism is arranged at the rear part of the conveyor.

8. The tunnel boring machine according to any one of claims 1 to 4, characterized in that: The tunnel slag discharge device also includes a transfer machine, which is arranged on a mobile seat. The transfer machine has a transfer machine feed port for receiving the slag transported from the conveyor discharge port of the conveyor. The transfer machine is used to transfer the slag transported by the conveyor to the main conveying device of the tunnel boring machine or the location of the slag truck.

9. The tunnel boring machine according to claim 8, characterized in that: The transfer machine is arranged on the moving seat for swinging up and down, and a transfer machine swing driving mechanism for driving the transfer machine to swing is arranged between the transfer machine and the moving seat.

10. The tunnel boring machine according to claim 9, characterized in that: The transfer machine extends left and right, one end of the transfer machine is hinged on the moving seat, and the transfer machine swing driving mechanism drives the other end of the transfer machine to swing the transfer machine.

11. The tunnel boring machine according to any one of claims 1 to 4, characterized in that: The material-moving mechanism comprises a mechanical arm, which is arranged at the front end of the conveyor and has a bucket for moving the slag in the tunnel to a shoveling opening.

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