Stacked classification conveying arbitrary turn belt conveyor and conveying method

Abstract

The application discloses a kind of arbitrary turning belt conveyors of laminated classification conveying and conveying method, first conveying unit and second conveying unit can transport the residue generated by first tunneling machine and second tunneling machine synchronously, and, in the tunnel hole before turning, first conveying unit and second conveying unit are vertically arranged in the direction of conveying in upper and lower layers, can make full use of vertical direction space, reduce the floor area in horizontal direction, adapt to complex working conditions of narrow space, reserve the action space of other equipment, so as to realize the continuous transport of large angle turning in small space;Further, after first conveying unit and second conveying unit complete turning by laminated turning device, they are changed from vertically arranged in upper and lower layers to horizontally arranged side by side outside the tunnel hole, so that the two conveying lines extend side by side in horizontal direction at the discharge end, the discharge ports do not interfere with each other, can directly correspond to different discharge stations, to improve the convenience of classified discharge and residue recovery, thereby improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor technology, and more specifically to a stacked, classified, and arbitrarily turning belt conveyor. Background Technology

[0002] Currently, most tunnel excavation operations use the TBM / shield method, which involves tunneling using a TBM / shield machine and transporting excavated materials using a continuous belt conveyor.

[0003] Chinese Patent Publication No. CN 115199291 A discloses an automatic muck loading and conveying device for tunnels, including a conveyor belt, a control console, and lifting arms. The conveyor belt is mounted on a bottom beam aligned with its direction, with one end at the working face and the other end at the tunnel exit. It is inclined from low to high from the working face to the exit, and has a horizontal section near the exit. The control console is located below the conveyor belt and near the working face, with a vertical support on it. The upper end of the support near the working face is connected to the bottom beam to support it. Two lifting arms are located on the control console near the exit, spaced apart along the width of the bottom beam. The upper end of each lifting arm is inclined upwards, and its end is hinged to the end of the inclined section of the bottom beam, enabling the transport of muck within a single-track tunnel.

[0004] However, existing slag transport devices have a small turning radius and occupy a large space, making it impossible to reserve enough space for other equipment to operate. At the same time, transporting slag through a single conveyor belt makes it difficult to classify, unload, and efficiently recycle slag under different geological conditions, resulting in low production efficiency.

[0005] Therefore, providing a belt conveyor that can reduce space occupation, meet the requirements of continuous transportation and classified unloading and recycling, and improve production efficiency has become an urgent problem to be solved in this field. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the purpose of this invention is to provide a stacked classified conveyor belt conveyor and conveying method that occupies little space and can realize continuous transportation and classified unloading with arbitrary turning.

[0007] To achieve the above objectives, the present invention provides a stacked, classified, and arbitrarily turning belt conveyor, which works in conjunction with two tunneling machines. It includes a first conveying unit, a second conveying unit, a discharge chute, and a stacked turning device. The discharge chute is located at the inlet end of the first and second conveying units. The first and second conveying units extend from inside the tunnel to outside, respectively. The stacked turning device can adjust the conveying direction of the first and second conveying units. The conveyors of the first tunneling machine and the second tunneling machine respectively cooperate with the first conveying unit and the second conveying unit through the unloading chute. The first conveying unit and the second conveying unit are arranged vertically in layers along the conveying direction inside the tunnel, and are turned by the layered turning device. Outside the tunnel, the conveying direction of the first conveying unit and the second conveying unit changes from vertical stacking to horizontal side-by-side arrangement.

[0008] Furthermore, it also includes a stacked arrangement frame, which is used to support the first conveying unit and the second conveying unit. The feeding ends of the first conveying unit and the second conveying unit are respectively provided with a first support tail and a second support tail, and a height difference is formed between the first support tail and the second support tail. It can cooperate with the stacked arrangement frame to make the first conveying unit and the second conveying unit form a vertical stacked arrangement.

[0009] Furthermore, the stacked arrangement frame includes a double-layer support and two sets of roller assemblies. The two sets of roller assemblies are stacked on the double-layer support along the height direction and extend along the conveying direction of the first conveying unit and the second conveying unit.

[0010] Furthermore, the stacked turning device includes two sets of turning modules, which are arranged in a spatially staggered manner and cooperate with the first conveying unit and the second conveying unit respectively. Each set of turning modules is equipped with a corresponding steering guide mechanism, which can drive the first conveying unit and the second conveying unit to turn.

[0011] Furthermore, the steering guidance mechanism includes a first-layer steering assembly and a second-layer reversing assembly. The first-layer steering assembly is positioned above the second-layer turnaround assembly. The conveying sections of the conveyor belts in the first and second conveying units are driven by the first-layer steering assembly, and the return sections are driven by the second-layer turnaround assembly. The conveying section extends along the first direction to form a feeding section, turns after passing the first-layer turning component, and extends along the second direction to form a dropping section. The feeding section and the dropping section are spatially staggered. The return section turns after passing the second-layer turning component along the second direction and resumes extending along the first direction.

[0012] Furthermore, the first-layer steering assembly includes a first-layer steering roller, a first-layer pressure roller, a first-layer redirecting roller, and a set of idlers. The first-layer pressure roller is disposed between the first-layer steering roller and the first-layer redirecting roller. The installation height of the first-layer redirecting roller is lower than that of the first-layer steering roller. The set of idlers is arranged below the first-layer steering roller along the conveying direction.

[0013] Furthermore, the conveying section of the conveyor belt enters from the top of the first-layer deflector roller, exits from the bottom of the first-layer deflector roller, is pressed against the bottom of the first-layer pressing roller, and then passes over the top of the first-layer deflector roller, is laid along the conveying direction, and is supported on the idler roller assembly.

[0014] Furthermore, the second-layer reversing assembly is distributed correspondingly to the first-layer steering assembly, including a second-layer steering roller, a second-layer pressure roller, a second-layer redirecting roller, and a second-layer idler roller. The return section of the conveyor belt extends from the bottom of the second-layer idler roller to the bottom of the second-layer redirecting roller, passes around the top of the second-layer redirecting roller, presses against the bottom of the second-layer steering roller, and then passes around the bottom of the second-layer steering roller and is distributed on the top of the second-layer steering roller.

[0015] Furthermore, the stacked turning device also includes a turning frame, on which the second-layer turning roller and the first-layer turning roller are respectively mounted, and the rotation axes of the second-layer turning roller and the first-layer turning roller form an angle with the central axis of the turning frame.

[0016] To achieve the above objectives, the present invention provides a stacked classification conveying method with arbitrary turning, based on the aforementioned stacked classification conveying method with arbitrary turning, the conveying method comprising: The first and second tunneling machines operate synchronously. The excavated material produced by the first and second tunneling machines is transported to the unloading chute via corresponding conveyors, and then transferred to the feed ends of the first and second conveying units respectively. The first and second conveying units transport slag along the conveying direction in a vertically stacked arrangement inside the tunnel. After turning through a stacked turning device, they extend out of the tunnel, changing from a vertically stacked arrangement to a horizontally parallel arrangement and continuously conveying slag.

[0017] The present invention provides a stacked, classified, and arbitrarily turning belt conveyor and conveying method. The first conveying unit and the second conveying unit can synchronously transport the slag generated by the first tunneling machine and the second tunneling machine. Furthermore, in the tunnel before turning, the first conveying unit and the second conveying unit are arranged vertically in a stacked manner along the conveying direction, which can make full use of the vertical space, reduce the horizontal footprint, adapt to complex working conditions with narrow spaces, and reserve space for other equipment, thereby realizing continuous transportation with large-angle turns in small spaces. In addition, after the first conveying unit and the second conveying unit complete the turning through the stacked turning device, they are changed from a vertically stacked arrangement to a horizontally parallel arrangement outside the tunnel, so that the two conveying lines extend horizontally side by side at the discharge end, and the discharge ports do not interfere with each other, and can directly correspond to different unloading positions, thereby improving the convenience of classified unloading and slag recycling, and thus improving production efficiency. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 A schematic diagram of the conveying process of the stacked classification conveyor with arbitrary turning belt provided by the present invention; Figure 2 This is a schematic diagram of the main structure of the stacked classification conveyor with arbitrary turning in this invention inside a tunnel; Figure 3 This is a top view of the stacked classification conveyor with arbitrary turning in this invention inside a tunnel. Figure 4 This is a schematic diagram of the main structure of the stacked classification conveyor with arbitrary turning in this invention outside a tunnel; Figure 5 This is a top view of the stacked classification conveyor belt with arbitrary turning in this invention outside a tunnel. Figure 6 This is a schematic diagram of the feeding end structure of the first conveying unit and the second conveying unit in this invention; Figure 7 This is a schematic diagram of the stacked frame structure in this invention; Figure 8 This is a schematic diagram of the overall structure of the stacked turning device in this invention; Figure 9 This is a front view schematic diagram of the stacked turning device for the belt conveyor provided by the present invention; Figure 10 A top view schematic diagram of the stacked turning device for the belt conveyor provided by the present invention; Figure 11 for Figure 10 A cross-sectional view; Figure 12 This is a schematic diagram of the structure of the first-layer steering roller in this invention; Figure 13 This is a schematic diagram of the arc-shaped mounting plate in this invention; Figure 14 A schematic diagram of the structure of the adjustment block in this invention; Figure 15 This is a schematic diagram of the cooperation structure between the first-layer steering roller and the angle adjustment mechanism in this invention.

[0020] Figure label: 1. First conveying unit; 11. First supporting tail section; 12. First conveyor belt; 121. Conveying section; 1211. Feeding section; 1212. Discharge section; 122. Return section; 13. First guide chute; 14. Drive unit; 15. Transmission unit; 16. Tensioning and redirecting device; 17. Track; 18. Tensioning trolley; 19. Tensioning device; 20. Unloading device; 2. Second conveying unit; 21. Second support tail section; 22. Second conveyor belt; 23. Second guide chute; 3. Unloading chute; 4. Stacked turning device; 41. Turning frame; 42. Turning module; 4201. First turning module; 4202. Second turning module; 43. Steering guide mechanism; 431. First-layer turning assembly; 4311. First-layer turning roller; 4312. First-layer pressure roller; 4313. First-layer redirecting roller; 4314. Steering idler roller group; 4315. Adjusting bearing seat; 4316. Rolling bearing; 4317. Cylinder; 4318. Special-shaped roller; 432. Second-layer reversing assembly; 4321. Second-layer turning roller; 4322. Second-layer pressure roller; 4323. Second-layer redirecting roller; 4324. Second-layer idler roller; 44. Angle adjustment structure; 441. Arc-shaped mounting plate; 4411. Mounting hole; 442. Adjusting block; 4421. Set screw; 45. Material stop plate; 5. Stacked frame; 51. Double-layer support; 52. Idler assembly; 521. Carrying idler assembly; 522. Return idler assembly; 6. First tunneling machine; 61. First conveyor; 7. Second tunneling machine; 71. Second conveyor. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0022] See Figures 1 to 5 The image shows an example of a stacked classification conveyor belt conveyor with arbitrary turning corners provided by the present invention.

[0023] As shown in the figure, the stacked classification conveyor with arbitrary turning in this example mainly includes a first conveying unit 1, a second conveying unit 2, a discharge chute 3, and a stacked turning device 4, and works in conjunction with two tunneling machines.

[0024] The unloading chute 3 is set at the feeding end of the first conveying unit 1 and the second conveying unit 2. The first conveying unit 1 and the second conveying unit 2 extend from inside the tunnel to outside the tunnel, respectively. The stacked turning device 4 can adjust the conveying direction of the first conveying unit 1 and the second conveying unit 2. The conveyors of the first and second tunneling machines are respectively connected to the first conveying unit 1 and the second conveying unit 2 via unloading chutes 3. The first conveying unit 1 and the second conveying unit 2 are arranged vertically in layers along the conveying direction inside the tunnel, and are turned by the stacked turning device 4. Outside the tunnel, the conveying direction of the first conveying unit 1 and the second conveying unit 2 changes from vertical stacking to horizontal parallel arrangement, thereby making full use of vertical space, reducing horizontal space occupation, adapting to complex working conditions with narrow space, realizing continuous transportation and classified unloading with large-angle turns in small space, and improving production efficiency.

[0025] Combination Figure 2 and Figure 6 The first conveying unit 1 has a first support tail 11 at its feed end, and the second conveying unit 2 has a second support tail 21 at its feed end. There is a height difference between the first support tail 11 and the second support tail 21, with the first support tail 11 being higher than the second support tail 21. The first support tail 11 and the second support tail 21 are respectively provided with return steering rollers, so that the first conveyor belt 12 in the first conveying unit 1 can be supported on the first support tail 11 and fitted on the corresponding return steering roller. Correspondingly, the second conveyor belt 22 in the second conveying unit 2 can be supported on the second support tail 21 and fitted on the corresponding return steering roller. At the same time, the second conveyor belt 22 passes through the first support tail 11 from below the first conveyor belt 12, so that the first conveying unit 1 and the second conveying unit 2 form a vertical stacked arrangement at the feed end.

[0026] Furthermore, this belt conveyor also includes a stacked frame 5, which can cooperate with the first support tail 11 and the second support tail 12 to form a stable vertical stacked structure between the first conveying unit 1 and the second conveying unit 2.

[0027] Combination Figure 7 Specifically, the stacked frame 5 includes a double-layer support 51 and two sets of roller assemblies 52. The two sets of roller assemblies 52 are stacked on the double-layer support 5 along the height direction and respectively support the first conveying unit 1 and the second conveying unit 2.

[0028] The idler assembly 52 includes a support idler group 521 and a return idler group 522. The support idler group 521 is used to support the conveying section of the conveyor belt in the first conveying unit 1 and the second conveying unit 2. The return idler group 522 is used to support the return section of the conveyor belt in the first conveying unit 1 and the second conveying unit 2. At the same time, the idler assembly 52 extends along the conveying direction of the first conveying unit 1 and the second conveying unit 2, so that the first conveying unit 1 and the second conveying unit 2 maintain a stable vertical stacked arrangement structure before turning in the tunnel.

[0029] Combination Figure 2 and Figure 3 Based on the above structure, the first conveying unit 1 and the second conveying unit 2 can be arranged vertically in the tunnel along the conveying direction, thereby making full use of the vertical space, reducing the horizontal footprint, adapting to complex working conditions with narrow space, reserving space for other equipment, and thus realizing continuous transportation with large-angle turns in a small space.

[0030] Combination Figure 1 Meanwhile, the feeding ends of the first conveying unit 1 and the second conveying unit 2 are arranged in the same area, which can cooperate with the conveyors of the first tunneling machine 6 and the second tunneling machine 7 to synchronously transfer and transport the slag produced by the first tunneling machine 6 and the second tunneling machine 7.

[0031] Combined Figure 1 and Figure 6 Specifically, the unloading chute 3 is located at the feeding end of the first conveying unit 1 and the second conveying unit 2. The first tunneling machine 6 and the second tunneling machine 7 are distributed opposite each other and tunnel in both directions. The first conveyor 61 configured on the first tunneling machine 6 extends synchronously with the first tunneling machine 6 and is connected to the unloading chute 3. The second conveyor 71 configured on the second tunneling machine 7 extends synchronously with the second tunneling machine 7 and is connected to the unloading chute 3.

[0032] Here, the specific configuration of the first tunneling machine 6 and the second tunneling machine 7, as well as the first conveyor 61 and the second conveyor 71, is a conventional technical means in this field and will not be described in detail here.

[0033] Furthermore, the unloading chute 3 is provided with inlets that cooperate with the first conveyor 61 and the second conveyor 71 respectively, and the inlets are respectively connected to the first guide chute 13 of the first conveying unit 1 and the second guide chute 23 of the second conveying unit 2, so that the different slag materials generated by the first tunneling machine 6 and the second tunneling machine 7 can be transported by the first conveyor 61 and the second conveyor 71 respectively, and then transported to the first conveying unit 1 and the second conveying unit 2 through the unloading chute 3, thereby realizing the synchronous, continuous and classified transportation of different slag materials.

[0034] Combination Figure 4 and Figure 5To achieve continuous transportation of slag by turning between the first conveying unit 1 and the second conveying unit 2, the stacked turning device 4 is preferably set at the tunnel entrance and can adjust the conveying direction of the first conveying unit 1 and the second conveying unit 2, so that the first conveying unit 1 and the second conveying unit 2 respectively complete the turning through the stacked turning device 4. Outside the tunnel entrance, the conveying direction changes from vertical stacking to horizontal parallel arrangement, thereby realizing continuous transportation with large-angle turning in a small space. The discharge ends of the first conveying unit 1 and the second conveying unit 2 extend horizontally side by side, and the discharge ports do not interfere with each other, and can directly correspond to different unloading positions to improve the convenience of classified unloading and slag recycling, thereby improving production efficiency.

[0035] Combination Figures 8 to 10 Specifically, the stacked turning device 4 includes a turning frame 41 and two sets of turning modules 42. The two sets of turning modules 42 are arranged in a spatially staggered manner and cooperate with the first conveying unit 1 and the second conveying unit 2 respectively. Each set of turning modules 42 is equipped with a corresponding steering guide mechanism 43, which can drive the first conveying unit 1 and the second conveying unit 2 to turn.

[0036] Furthermore, the turning frame 41 is generally L-shaped, with the first turning module 4201 and the second turning module 4202 respectively located at both ends of the turning frame 41 and staggered in the horizontal and vertical directions to present a spatial staggered distribution. This ensures that the feeding and discharging of the first conveying unit 1 and the second conveying unit 2 do not interfere with each other when passing through the first turning module 4201 and the second turning module 4202 respectively, and that the slag transportation and classified unloading can be carried out synchronously.

[0037] In conjunction with this, the steering guide mechanism 43 of each turning module 42 includes a first-layer steering component 431 and a second-layer turning component 432. The first-layer steering component 431 and the second-layer turning component 432 are arranged vertically stacked. The first-layer steering component 431 is located above the second-layer turning component 432 to further make full use of the vertical space and reduce the occupation of the horizontal space.

[0038] Combination Figure 11 Furthermore, taking the first conveying unit 1 as an example, the conveying section 121 of the first conveyor belt 12 is driven and cooperates with the first-layer turning component 431, and the return section 122 is driven and cooperates with the second-layer turning component 432. The conveying section 121 extends along the first direction to form the feeding section 1211, turns after passing the first-layer turning component 431, and extends along the second direction to form the dropping section 1212, so that the feeding section 1211 and the dropping section 1212 are spatially staggered. The return section 122 turns after passing the second-layer turning component 432 along the second direction and returns to extending along the first direction, so as to realize the turning of the conveying direction of the first conveying unit 1 and the reset of the return.

[0039] Specifically, the first-layer steering assembly 431 includes a first-layer steering roller 4311, a first-layer pressure roller 4312, a first-layer redirecting roller 4313, and a steering idler group 4314. The first-layer steering roller 4311 is rotatably mounted on the turning frame 41, providing core steering support for the first conveyor belt 12. The first-layer pressure roller 4312 is arranged between the first-layer steering roller 4311 and the first-layer redirecting roller 4313, and is pressed against the conveying section 121 of the first conveyor belt 12, capable of tensioning the first conveyor belt. The conveyor belt 12 is fed and its deviation is suppressed to ensure the stability of the turning process. The installation height of the first-layer redirecting roller 4313 is lower than that of the first-layer turning roller 4311, so that the first conveyor belt 12 forms a stable vertical height difference when passing the first-layer redirecting roller 4313 and the first-layer turning roller 4311, providing a structural basis for the spatial transfer of materials. The turning idler group 4314 is arranged below the first-layer turning roller 4311 along the conveying direction, which can support the first conveyor belt 12 after turning and ensure the smooth conveying of the falling material.

[0040] Furthermore, the feeding section 1211 of the conveying section 121 is supported on the top of the first-layer turning roller 4311. After turning around from the top of the first-layer turning roller 4311 and exiting from the bottom of the first-layer turning roller 4311, it is pressed and adhered to the bottom of the first-layer pressing roller 4312. After passing around from the top of the first-layer redirecting roller 4313, it is laid along the conveying direction and stably supported on the turning roller group 4314 to form the dropping section 1212.

[0041] Based on the above structure, the cross-sections of the feeding section 1211 and the dropping section 1212 of the conveying section 121 are distributed in a "H" shape, and a vertical height difference is formed between the feeding section 1211 and the dropping section 1212. As the first conveyor belt 12 continues to run, the material carried on the feeding section 1211 can fall smoothly onto the dropping section 1212 below by its own gravity after completing the turning process, so as to realize the material transfer without impact and continuous transfer during the turning process.

[0042] Combination Figure 8 and Figure 11 Furthermore, to ensure the smooth descent of materials, a baffle plate 45 is also provided on the turning frame 41. The baffle plate 45 is arranged on one side of the first-layer turning roller 4311 and connects the feeding section 1211 and the dropping section 1212. The material on the feeding section 1211 comes into contact with the baffle plate 45 under the conveying action of the first conveyor belt 12. After being guided and limited by the baffle plate 45, the material falls smoothly to the dropping section 1212 below as the first conveyor belt 12 continues to run.

[0043] Therefore, through the transmission cooperation between the first-layer steering component 431 and the conveying section 121, the feeding section 1211 and the unloading section 1212 of the first conveying unit 1 form a height difference in the vertical direction, which transforms the direct turning that the traditional belt conveyor can only complete in the horizontal plane into a spatial three-dimensional turning that relies on the vertical height difference, thereby breaking through the limitations of the conveyor belt tension and turning radius on the turning in the horizontal plane, and effectively increasing the turning angle.

[0044] Combination Figure 10 To achieve the turning of the first conveying unit 1 and to form a turning angle between the feeding section 1211 and the unloading section 1212, the first-layer turning roller 4311 is installed on the turning frame 41 through the angle adjustment mechanism 44, and the rotation axis of the first-layer turning roller 4311 is arranged at an inclined angle with the central axis of the turning frame 41. The conveying section 121 of the first conveyor belt 12 is attached to the top outer side of the first-layer turning roller 4311 along the first direction. When the first conveyor belt 12 runs around the first-layer turning roller 4311, under the circumferential guidance of the inclined first-layer turning roller 4311, the conveying direction of the first conveyor belt 12 is forcibly deflected, so that the conveying section 121 enters from the top of the first-layer turning roller 4311, exits from the bottom of the first-layer turning roller 4311, and extends along the second direction to complete the horizontal turning, and finally forms a turning angle between the feeding section 1211 and the unloading section 1212 to achieve the turning of the first conveying unit 1.

[0045] Combination Figure 12 Specifically, the first-layer steering roller 4311 includes an adjusting bearing 4315, a rolling bearing 4316, and a cylinder 4317. The rolling bearing 4316 is built into the cylinder 4317 and extends from the end of the cylinder 4317, supporting the cylinder 4317 and driving it to rotate synchronously. The adjusting bearing 4315 is correspondingly arranged at both ends of the rolling bearing 4316, and has a convex shape. The rolling bearing 4316 is rotatably mounted in the shaft hole of the adjusting bearing 4315. The adjusting bearing 4315 is installed on the turning frame 41 through the angle adjustment mechanism 44, providing an adjustable mounting base for the cylinder 4317.

[0046] Combination Figure 13 and Figure 14 Correspondingly, the angle adjustment mechanism 44 includes an arc-shaped mounting plate 441 and an adjustment block 442. The arc-shaped mounting plate 441 is mounted on the turning frame 41 along the rotation axis of the first-layer steering roller 4311 and corresponds to the adjustment shaft seats 4315 at both ends of the first-layer steering roller 4311. The adjustment block 442 can cooperate with the arc-shaped mounting plate 441 and the adjustment shaft seats 4315 respectively to connect the first-layer steering roller 4311 and the arc-shaped mounting plate 441, thereby installing and adjusting the first-layer steering roller 4311.

[0047] Combination Figure 15 Furthermore, the arc-shaped mounting plate 441 has several mounting holes 4411 distributed along the arc-shaped trajectory; the connecting plates at both ends of the adjusting shaft seat 4315 are bolted into the corresponding mounting holes 4411 to achieve the initial connection between the adjusting shaft seat 4315 and the arc-shaped mounting plate 441; the adjusting block 442 has an overall L-shaped structure and is correspondingly set at both ends of the adjusting shaft seat 4315. The bottom of the adjusting block 442 is locked and fixed to the mounting holes 4411 at both ends of the arc-shaped mounting plate 441 by fixing bolts. The top of the adjusting block 442 has a horizontally arranged threaded hole, and a set screw 4421 is installed in the threaded hole so that the set screw 4421 can be screwed into the threaded hole until the end of the set screw 4421 abuts against the connecting plates at both ends of the adjusting shaft seat 4315, thereby stably locking the adjusting shaft seat 4315 on the arc-shaped mounting plate 441, effectively preventing the first layer steering roller 4311 from slipping during operation and ensuring the stable steering of the first conveyor belt 12.

[0048] Simultaneously, when the steering angle needs to be adjusted, the connecting bolts on the connecting plates at both ends of the adjusting shaft seat 4315 are loosened, allowing the adjusting shaft seat 4315 to move along the arc-shaped trajectory of the arc-shaped mounting plate 441 and reconnect with the mounting holes 4411 at any position on the arc-shaped mounting plate 441, thereby adjusting the installation angle of the first-layer steering roller 4311. After the angle adjustment is completed, the connecting bolts of the adjusting shaft seat 4315 are tightened again, and the set screw 4421 on the top of the adjusting block 442 is tightened to ensure that the end of the set screw 4421 abuts against the connecting plates at both ends of the adjusting shaft seat 4315, so that the adjusting shaft seat 4315 after adjustment is firmly connected to the arc-shaped mounting plate 441, completing the angle adjustment and locking of the first-layer steering roller 4311, thereby synchronously adjusting the angle between the rotation axis of the first-layer steering roller 4311 and the central axis of the turning frame 41, realizing the flexible adjustment of the steering angle of the first conveying unit 1, which can turn arbitrarily.

[0049] Combination Figure 12 Furthermore, the first-layer turning roller 4311 also includes irregular rollers 4318. The irregular rollers 4318 are evenly distributed on the surface of the cylinder 4317. The irregular rollers 4318 have a drum-shaped structure, and the envelope circle formed by several irregular rollers 4318 is exactly the outer circle of the cylinder 4317, which can fit tightly with the cylinder 4317.

[0050] Furthermore, the irregularly shaped roller 4318 has a built-in rolling bearing and can rotate around its own axis. The rotation axis of the irregularly shaped roller 4318 is perpendicular to that of the cylinder 4317, so that the first conveyor belt 12 can rely on its own flexibility to bypass the first-layer turning roller 4311 at a set transport angle. When the first conveyor belt 12 is running, it drives the first-layer turning roller 4311 to rotate around the rolling bearing 4316. During the winding and turning process at the set angle, the first conveyor belt 12 will have a tendency to deviate to one side. The irregularly shaped roller 4318, which is in contact with the side and surface of the first conveyor belt 12, rotates synchronously with the deviation tendency of the first conveyor belt 12. The rotation of the irregularly shaped roller 4318 can convert the sliding friction between the first conveyor belt 12 and the cylinder 4317 into rolling friction. In addition, the drum-shaped structure of the irregularly shaped roller 4318, together with the vertically arranged rotation direction, forms a lateral guiding constraint on the first conveyor belt 12, thereby counteracting the deviation tendency of the first conveyor belt 12 during the turning process and ensuring the stable turning and conveying of the first conveyor belt 12.

[0051] The first-layer steering assembly 431 thus formed is driven and cooperates with the conveying section 121 of the first conveyor belt 12, so that the feeding section 1211 of the conveying section 121 extends along the first direction, and after passing around the first-layer steering assembly 431, a vertical height difference and a turn are formed, so that the dropping section 1212 extends along the second direction, and the feeding section 1211 and the dropping section 1212 are spatially staggered, which can realize the turning of the conveying direction of the first conveying unit 1.

[0052] Combination Figure 11 Conversely, the return section 122 of the first conveyor belt 12 turns around the second-layer reversing assembly 432 in the second direction and resumes its extension in the first direction to achieve the reset of the return of the first conveying unit 1.

[0053] Specifically, the second-layer turnaround assembly 432 is located below the first-layer steering assembly 431 and is distributed correspondingly to the first-layer steering assembly 431. The second-layer turnaround assembly 432 includes a second-layer steering roller 4321, a second-layer pressure roller 4322, a second-layer redirecting roller 4323, and a second-layer idler roller 4324. The second-layer steering roller 4321, the second-layer pressure roller 4322, the second-layer redirecting roller 4323, and the second-layer idler roller 4324 are stacked and distributed correspondingly to the first-layer steering roller 4311, the first-layer pressure roller 4312, the first-layer redirecting roller 4313, and the steering idler roller group 4314.

[0054] In contrast to the conveying section 121, the return section 122 of the first conveyor belt 12 extends from the bottom of the second-layer idler roller 4324 to the bottom of the second-layer redirecting roller 4323, passes around the top of the second-layer redirecting roller 4323 and presses against the bottom of the second-layer steering roller 4321, then passes around the bottom of the second-layer steering roller 22 and is distributed on the top of the second-layer steering roller 4321, so as to realize the steering reset of the return section 122.

[0055] Here, the second-layer steering roller 4321 is mounted on the turning frame 41 through the angle adjustment mechanism 44, and the rotation axis of the second-layer steering roller 4321 corresponds to that of the first-layer steering roller 4311. The structure of the second-layer steering roller 4321 and its cooperation structure with the angle adjustment mechanism 44 are the same as those of the first-layer steering roller 4311, and will not be described in detail here.

[0056] Therefore, the first conveyor belt 12 in the first conveying unit 1 is driven by the steering guide mechanism 43 of the first turning module 4201 to realize the turning of the conveying direction of the first conveying unit 1 and the reset of the return stroke.

[0057] Similarly, the cooperation structure between the second conveying unit 2 and the steering guide mechanism 43 in the second turning module 4202 is the same as that of the first conveying unit 1, and will not be described in detail here.

[0058] The first turning module 4201 and the second turning module 4202 thus formed are respectively set at both ends of the turning frame 41 and are staggered in the horizontal and vertical directions to present a spatial staggered distribution. This makes the steering guide mechanism 43 corresponding to the first turning module 4201 and the steering guide mechanism 43 corresponding to the second turning module 4202 arranged in a layered staggered manner on the turning frame 41, and the steering angle and steering trajectory are staggered with each other.

[0059] Combination Figure 4 and Figure 5 Based on the above structure, the first conveying unit 1 and the second conveying unit 2 respectively complete the turning action through their respective turning guide mechanisms 43. The conveying line direction of the first conveying unit 1 and the conveying line of the second conveying unit 2 deflect along different spatial paths during the turning process. The conveying directions of the first conveying unit 1 and the second conveying unit 2 gradually unfold from the vertical stacked state to the horizontal direction.

[0060] Therefore, in the discharge side area, the conveying directions of the first conveying unit 1 and the second conveying unit 2 are completely separated from the vertical overlapping state and turn to the horizontal direction respectively, so that the discharge ends of the first conveying unit 1 and the second conveying unit 2 extend side by side in the horizontal direction, thereby realizing the spatial distribution structure of vertical stacking distribution on the inlet side inside the tunnel and horizontal side by side arrangement on the outlet side outside the tunnel.

[0061] Furthermore, in order to ensure the stable conveying of slag by the first conveying unit 1 and the second conveying unit 2, the first conveying unit 1 and the second conveying unit 2 are respectively equipped with a drive device 14, a transmission device 15, a tensioning redirection device 16, a track 17, a tensioning trolley 18, a tensioning device 19 and a discharge device 20.

[0062] Combination Figure 5Taking the first conveying unit 1 as an example, the unloading device 20 is set at the discharge end of the first conveying unit 1. The unloading device 20 has an integrated end redirecting roller, which can unload and discharge the slag conveyed by the first conveyor belt 12 from the belt body, thus completing the unloading of the slag. At the same time, the end redirecting roller realizes the redirection of the first conveyor belt 12, so that the conveying section can smoothly enter the return section and complete the conveying cycle.

[0063] Furthermore, the drive device 14 can provide a power source for the first conveying unit 1, and the transmission device 15 is connected to the drive device 14. The transmission device 15 is composed of a drive roller, which can transmit the rotational power output by the drive device 14 to the first conveyor belt 12. Through the friction between the drive roller and the first conveyor belt 12, the first conveyor belt 12 is driven to perform a closed-loop cyclic motion in a preset running direction.

[0064] Meanwhile, the tensioning redirection device 16 is arranged inside the transmission device 15 along the conveying direction and integrates the redirection roller and the tension adjustment structure, so that the redirection roller changes the running direction of the first conveyor belt 12 and works with the tensioning system to adjust the tension of the first conveyor belt 12, preventing the first conveyor belt 12 from slipping or running off-center, and ensuring transmission stability.

[0065] Furthermore, the track 17 is fixedly laid along the conveying direction of the first conveying unit 1, providing guidance and support for the movement of the tensioning trolley 18. The tensioning trolley 18 is movably mounted on the track 17 and fixedly connected to the redirecting roller of the first conveyor belt 12. By displacing along the track 17, the redirecting roller changes position, thereby adjusting the tension of the first conveyor belt 12 and ensuring that the first conveyor belt 12 is always kept taut. The tensioning device 19 is driven by the tensioning trolley 18 and can apply a continuous and stable tension force to the tensioning trolley 18, driving the tensioning trolley 18 to move along the track 17 in a direction away from the transmission device 15, maintaining the stable tension of the first conveyor belt 12 and ensuring the reliable operation of the first conveying unit 1.

[0066] Based on the above structure, the first conveying unit 1 and the second conveying unit 2 can work together to realize the synchronous and continuous transportation of slag from both directions, so as to meet the working conditions of synchronous tunneling by two tunneling machines.

[0067] Combination Figure 1 Therefore, inside the tunnel, the first tunneling machine 6 and the second tunneling machine 7 tunnel in both directions, and the generated slag is transported to the unloading chute 3 by the corresponding conveyor, and then transferred to the first conveying unit 1 and the second conveying unit 2 respectively through the unloading chute 3.

[0068] Combination Figure 2 and Figure 3Meanwhile, the first conveying unit 1 and the second conveying unit 2 are arranged vertically in layers along the conveying direction to make full use of the vertical space, reduce the horizontal footprint, adapt to complex working conditions with narrow space, and thus realize continuous transportation of slag material with large-angle turns in a small space.

[0069] Combination Figure 4 and Figure 5 Furthermore, after the first conveying unit 1 and the second conveying unit 2 are turned by the stacked turning device 4, outside the tunnel, the conveying direction of the first conveying unit 1 and the second conveying unit 2 gradually changes to a horizontal arrangement. The discharge ends extend side by side in the horizontal direction without interfering with each other, and can directly correspond to different unloading stations, so as to improve the convenience and efficiency of classified unloading and recycling.

[0070] Furthermore, the turning angle between the first conveying unit 1 and the second conveying unit 2 can be adjusted by the turning angle adjustment mechanism 44 to achieve the adjustment and adaptation of the turning angle and arbitrary turning.

[0071] This constitutes the stacked classification conveyor with arbitrary turning belt conveyor provided by the present invention.

[0072] This invention also provides a method for stacked sorting and conveying with arbitrary turns, based on a stacked sorting and conveying conveyor with arbitrary turns constructed by the above scheme. This conveying method includes: Combination Figure 1 First, synchronous tunneling and material supply are carried out. The first tunneling machine 6 and the second tunneling machine 7 perform synchronous bidirectional tunneling operations. The slag produced by the first tunneling machine 6 and the second tunneling machine 7 are respectively transported to the unloading chute 3 by the corresponding conveyors, and then transferred from the unloading chute 3 to the feeding end of the first conveying unit 1 and the second conveying unit 2.

[0073] Combination Figure 2 and Figure 3 Furthermore, the slag is conveyed in layers inside the tunnel. The first conveying unit 1 and the second conveying unit 2 convey the slag along the conveying direction in a vertically stacked arrangement inside the tunnel, making full use of the vertical space, reducing the horizontal footprint, and reserving space for other equipment.

[0074] Combination Figure 4 and Figure 5 Next, the conveying units perform a turning conveying process. After the first conveying unit 1 and the second conveying unit 2 complete the turning through the stacked turning device 4, they extend out of the tunnel, changing from a vertical stacked arrangement to a horizontal parallel arrangement and continuously conveying slag. This allows the two conveying lines to extend horizontally side by side at the discharge end, with the discharge ports not interfering with each other, and can directly correspond to different unloading positions, thereby improving the convenience of classified unloading and slag recycling, and thus improving production efficiency.

[0075] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A layered, classified, and arbitrarily turning belt conveyor, used in conjunction with two tunneling machines, characterized in that, The system includes a first conveying unit, a second conveying unit, a discharge chute, and a stacked turning device. The discharge chute is located at the inlet end of the first and second conveying units. The first and second conveying units extend from inside the tunnel to outside the tunnel, respectively. The stacked turning device can adjust the conveying direction of the first and second conveying units. The conveyors of the first tunneling machine and the second tunneling machine respectively cooperate with the first conveying unit and the second conveying unit through the unloading chute. The first conveying unit and the second conveying unit are arranged vertically in layers along the conveying direction inside the tunnel, and are turned by the layered turning device. Outside the tunnel, the conveying direction of the first conveying unit and the second conveying unit changes from vertical stacking to horizontal side-by-side arrangement.

2. The stacked classification conveyor with arbitrary turning belt conveyor according to claim 1, characterized in that, It also includes a stacked arrangement frame, which is used to support the first conveying unit and the second conveying unit. The feeding ends of the first conveying unit and the second conveying unit are respectively provided with a first support tail and a second support tail, and a height difference is formed between the first support tail and the second support tail. It can cooperate with the stacked arrangement frame to make the first conveying unit and the second conveying unit form a vertical stacked arrangement.

3. The stacked classification conveyor with arbitrary turning belt conveyor according to claim 2, characterized in that, The stacked frame includes a double-layer support and two sets of roller assemblies. The two sets of roller assemblies are stacked on the double-layer support along the height direction and extend along the conveying direction of the first conveying unit and the second conveying unit.

4. The stacked classification conveyor with arbitrary turning belt conveyor according to claim 1, characterized in that, The stacked turning device includes two sets of turning modules, which are arranged in a spatially staggered manner and cooperate with the first conveying unit and the second conveying unit respectively. Each set of turning modules is equipped with a corresponding steering guide mechanism, which can drive the first conveying unit and the second conveying unit to turn.

5. The stacked classification conveyor with arbitrary turning belt conveyor according to claim 4, characterized in that, The steering and guiding mechanism includes a first-layer steering component and a second-layer turning-back component. The first-layer steering assembly is positioned above the second-layer turnaround assembly. The conveying sections of the conveyor belts in the first and second conveying units are driven by the first-layer steering assembly, and the return sections are driven by the second-layer turnaround assembly. The conveying section extends along the first direction to form a feeding section, turns after passing the first-layer turning component, and extends along the second direction to form a dropping section. The feeding section and the dropping section are spatially staggered. The return section turns after passing the second-layer turning component along the second direction and resumes extending along the first direction.

6. The stacked classification conveyor with arbitrary turning belt conveyor according to claim 5, characterized in that, The first-layer steering assembly includes a first-layer steering roller, a first-layer pressure roller, a first-layer redirecting roller, and a set of idlers. The first-layer pressure roller is disposed between the first-layer steering roller and the first-layer redirecting roller. The installation height of the first-layer redirecting roller is lower than that of the first-layer steering roller. The set of idlers is arranged below the first-layer steering roller along the conveying direction.

7. The stacked classification conveyor with arbitrary turning belt conveyor according to claim 6, characterized in that, The conveyor section of the conveyor belt enters from the top of the first-layer deflector roller, exits from the bottom of the first-layer deflector roller, is pressed against the bottom of the first-layer pressure roller, and then passes over the top of the first-layer deflector roller, is laid along the conveying direction, and is supported on the idler roller assembly.

8. The stacked classification conveyor with arbitrary turning belt conveyor according to claim 6, characterized in that, The second-layer turnaround assembly is distributed correspondingly to the first-layer steering assembly, including a second-layer steering roller, a second-layer pressure roller, a second-layer redirecting roller, and a second-layer idler roller. The return section of the conveyor belt extends from the bottom of the second-layer idler roller to the bottom of the second-layer redirecting roller, passes around the top of the second-layer redirecting roller, presses against the bottom of the second-layer steering roller, and then passes around the bottom of the second-layer steering roller and is distributed on the top of the second-layer steering roller.

9. The stacked classification conveyor with arbitrary turning belt conveyor according to claim 8, characterized in that, The stacked turning device also includes a turning frame, on which the second-layer turning roller and the first-layer turning roller are respectively mounted, and the rotation axes of the second-layer turning roller and the first-layer turning roller form an angle with the central axis of the turning frame.

10. A method for stacked, classified, and conveyed transport with arbitrary turns, characterized in that, Based on any one of claims 1-9, the stacked classification conveyor with arbitrary turning mechanism, the conveying method includes: The first and second tunneling machines operate synchronously. The excavated material produced by the first and second tunneling machines is transported to the unloading chute via corresponding conveyors, and then transferred to the feed ends of the first and second conveying units respectively. The first and second conveying units transport slag along the conveying direction in a vertically stacked arrangement inside the tunnel. After turning through a stacked turning device, they extend out of the tunnel, changing from a vertically stacked arrangement to a horizontally parallel arrangement and continuously conveying slag.

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