An automated transport apparatus and method for tunneling

Abstract

The application discloses a kind of tunnel automation transport equipment and transport method, it is related to sealed conveying equipment technical field.The present application includes sealed conveying pipeline, the inside of sealed conveying pipeline is provided with inner conveying line body, the import and export of sealed conveying pipeline are slidably connected with feeding line body, the feeding line body includes sealed cover that is slidably connected in the import and export of sealed conveying pipeline, two groups of roller racks are fixedly installed in the inside of sealed cover, multiple groups of transmission rollers and multiple groups of conveying rollers are rotatably installed between two groups of roller racks, the inside of sealed cover is slidably connected with multiple groups of sealing transmission plates, and folding plate is provided between adjacent sealing transmission plates.The present application is provided in feeding line body in the both ends of sealed conveying pipeline, improves the gas stability inside sealed conveying pipeline, then by the setting of sealing transmission plate and folding plate, can adjust the space inside feeding line body according to the length of ore, can save the use of inert gas, reduces conveying cost.

Description

Technical Field

[0001] This invention relates to the field of sealed conveying equipment technology, and specifically to an automated transport equipment and method for tunnels. Background Technology

[0002] As the modern mining industry continues to demand higher production efficiency and environmental protection, the methods of transporting ore materials are also constantly being innovated and improved. In traditional ore transportation systems, belt conveyors and roller conveyors are widely used for long-distance ore transportation due to their high transportation capacity and relatively simple structure.

[0003] Currently, large ore blocks, bauxite blocks, and non-ferrous metal ores are difficult to handle effectively during transport due to their large size and high density. Belt conveyors have limited load capacity. Furthermore, these large ores are prone to oxidation during transport, and the complex gas environment in mine tunnels increases the risk of safety accidents. Chinese patent (publication number: CN221939287U) discloses a sealed conveyor table for ore processing, including a support frame and a loading frame. The loading frame is fixedly connected to one end of the top of the support frame. A first groove is formed inside the support frame, and a discharge chute is formed at the bottom of the support frame away from the loading frame. A second groove is formed at the top of the support frame near the loading frame, and both the second groove and the discharge chute communicate with the first groove. A first servo motor is fixedly connected to the outer wall of one side of the support frame, and the output end of the first servo motor is connected via a... A first rotating shaft is fixedly connected to the shaft assembly. The other end of the first rotating shaft extends through the support frame into the interior of the first groove and is fixedly sleeved with a first transmission wheel. A second rotating shaft is rotatably connected inside the first groove away from the first rotating shaft. A second transmission wheel is fixedly sleeved on the shaft wall of the second rotating shaft inside the first groove. The second transmission wheel is connected to the first transmission wheel via a transmission belt. A feeding groove is opened at the top of the feeding rack at the end away from the support frame, and a third groove is opened at the bottom of the feeding rack near the support frame. The third groove communicates with the second groove. This patent also uses a belt conveyor line, which has a limited load capacity. At the same time, this patent will cause gas leakage inside the device during the loading and unloading process. For ore transportation that requires inert gas sealing, the cost is too high. Currently, the main difficulty of sealed conveyor lines is that the inert gas inside the sealed conveyor line will leak during the loading and unloading process, and air is easily introduced. For example, helium and argon are used as high-purity inert gases, which are expensive. The amount of inert gas replenished during the loading and unloading process is too large, resulting in excessive transportation costs. Summary of the Invention

[0004] The purpose of this invention is to provide an automated transportation device and method for tunnels in order to solve the above problems.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution: An automated transportation device for tunnels includes a sealed conveying pipe, an inner conveying line is provided inside the sealed conveying pipe, and a feeding line is slidably connected to both the inlet and outlet of the sealed conveying pipe. The feeding line includes a sealed outer cover that is slidably connected to the inlet and outlet of the sealed conveying pipe. Two sets of roller frames are fixedly installed inside the sealed outer cover. Multiple sets of transmission rollers and multiple sets of conveying rollers are rotatably installed between the two sets of roller frames. Multiple sets of sealed transmission plates are slidably connected inside the sealed outer cover. Folding plates are provided between adjacent sealed transmission plates. The sealed transmission plates can slide along the transmission rollers in a sealed manner, and the sliding speed decreases from the outside to the inside. The inner walls of the two sets of roller frames are respectively equipped with air inlet valves and air outlet valves. The sealing cover has a discharge port on one side near the inner conveyor line, and the other side is an open design. The discharge port is equipped with a sealing door inside.

[0006] Furthermore, the outer surface of the transmission roller is provided with an outer spiral groove. The spiral spacing of the outer spiral grooves on multiple sets of transmission rollers decreases sequentially from the outside to the inside. There is one more sealing transmission plate than the transmission roller, and the extra sealing transmission plate is fixedly installed on the conveying roller. The inside of the sealing transmission plate is provided with a transmission hole, through which the transmission roller passes. The inner wall of the transmission hole is provided with a transmission protrusion, which is inserted into the outer spiral groove.

[0007] Furthermore, multiple sets of sprockets are rotatably installed inside the front roller frame. The sprockets are fixedly connected to the drive roller and the conveyor roller, respectively. The multiple sets of sprockets are connected by chain drive. A conveyor motor is fixedly installed inside the front roller frame. The output end of the conveyor motor is fixedly connected to the leftmost sprocket. An annular groove is opened at the end of the drive roller away from the sprocket. The annular groove is connected to the outer spiral groove and has the same depth as the outer spiral groove. Multiple sets of top-pressure cylinders are fixedly installed inside the back roller frame. The number of top-pressure cylinders is the same as the number of drive rollers.

[0008] Furthermore, the outer surface of the conveying roller is provided with an annular groove, and the inner conveying line is a roller conveying line, and the roller has the same structure as the conveying roller.

[0009] Furthermore, a gas supply pipe and an inert gas detection sensor are provided at the top of the sealed delivery pipe.

[0010] Furthermore, an air inlet pipe and an air outlet pipe are provided at the end of the roller frame away from the sealed conveying pipeline. The air inlet pipe is connected to an inert gas source, and an inert gas detection sensor is installed on the air outlet pipe. The air inlet pipe is connected to an air inlet valve, and the air outlet pipe is connected to an air outlet valve. The air outlet valve is located near the top of the roller frame, and the air inlet valve is located near the bottom of the roller frame.

[0011] Furthermore, the top of the sealing door is hinged to the inner top of the discharge port, and a spring is provided between the top of the sealing door and the sealing cover. A pressure sensor is fixedly installed on the outside of the spring, which is used to detect the pressure between the spring and the sealing door. A top rod is slidably connected to the top of the sealing cover, and the top rod is connected to the sealing door through a transmission steel wire rope.

[0012] Furthermore, both ends of the sealed conveying pipe are provided with bottom rails, the bottom of the sealed outer cover is equipped with a slider, the slider is slidably connected to the bottom rail, the bottom of the sealed outer cover is provided with a nut sleeve, a drive motor is fixedly installed in the middle of the bottom rail, a drive screw is fixedly installed at the output end of the drive motor, and the drive screw is threadedly connected to the nut sleeve.

[0013] Furthermore, the top of the open end of the sealing cover is designed to be inclined, and sealing rubber pads are provided at the top and bottom of the sealing transmission plate and the folding plate.

[0014] An automated transport method for tunnels includes the following steps: S1. Large ore is placed into the inlet feeding line in sequence. The inlet feeding line automatically adjusts the storage space according to the length of the ore. After the space adjustment is completed, a mixture of helium and argon inert gas is injected into the ore storage space through the air inlet valve. The air in the storage space is discharged from bottom to top through the exhaust valve. When the storage space is completely filled with inert gas, the air inlet valve and the exhaust valve are closed to complete the inlet filling and venting. S2. Open the sealed door and transport the ore to the inner conveyor line. At this time, the storage space is connected to the sealed conveyor pipe to ensure that no air enters the sealed conveyor pipe. When the ore is transported to the next station by the inner conveyor line, the sealed door on the feeding line at the outlet end is opened and the ore is transported to the outlet feeding line. Then the sealed transmission plate is opened to take out the ore, completing the low-cost inert gas sealed conveying.

[0015] The beneficial effects of this invention are as follows: 1. This invention, through the design of a sealed conveying pipeline and the injection of inert gas inside the sealed conveying pipeline, can ensure the safety of ore conveying, prevent ore oxidation during conveying, and achieve high conveying quality.

[0016] 2. This invention, by setting up a feeding line at both ends of the sealed conveying pipe, prevents air from mixing into the sealed conveying pipe during ore loading and unloading, thereby improving the gas stability inside the sealed conveying pipe. Furthermore, through the setting of the sealed transmission plate and the folding plate, the internal space of the feeding line can be automatically adjusted according to the length of the ore, which can save the use of inert gas and reduce the conveying cost. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the sealed conveying pipeline of the present invention; Figure 3 This is a schematic diagram of the overall structure of the feeding line of the present invention; Figure 4 This is an exploded view of the feeding line of this invention; Figure 5 This is a schematic diagram of the roller frame structure of the present invention. Figure 1 ; Figure 6 This is a schematic diagram of the roller frame structure of the present invention. Figure 2 ; Figure 7 This is a schematic diagram of the sealed transmission plate structure of the present invention; Figure 8 This is a schematic diagram of the transmission roller structure of the present invention.

[0018] Reference numerals: 2. Sealed conveying pipe; 21. Air supply pipe; 22. Inert gas detection sensor; 23. Bottom rail; 24. Drive motor; 25. Drive screw; 3. Roller frame; 31. Inlet valve; 32. Inlet pipe; 33. Exhaust valve; 34. Exhaust pipe; 35. Top pressure cylinder; 4. Inner conveying line; 5. Sealed outer cover; 51. Discharge port; 52. Slider; 53. Nut sleeve; 6. Sealed door; 61. Spring; 62. Pressure sensor; 63. Top rod; 64. Transmission wire rope; 7. Transmission roller; 71. Sprocket; 72. Outer spiral groove; 73. Annular groove; 8. Conveying roller; 9. Sealed transmission plate; 91. Folding plate; 92. Transmission hole; 93. Transmission protrusion. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0020] Example 1, as Figures 1-8 As shown, an automated transportation device for tunnels includes a sealed conveying pipe 2, an inner conveying line 4 is provided inside the sealed conveying pipe 2, and a feeding line is slidably connected to both the inlet and outlet of the sealed conveying pipe 2. The feeding line includes a sealed outer cover 5 that is slidably connected to the inlet and outlet of the sealed conveying pipe 2. Two sets of roller frames 3 are fixedly installed inside the sealed outer cover 5. Multiple sets of drive rollers 7 and multiple sets of conveying rollers 8 are rotatably installed between the two sets of roller frames 3. In this embodiment, nine sets of drive rollers 7 and five sets of conveying rollers 8 are provided. The specific number can be adjusted according to the length of the ore. Multiple sets of sealed drive plates 9 are slidably connected inside the sealed outer cover 5. Folding plates 91 are provided between adjacent sealed drive plates 9. The sealed drive plates 9 can slide along the drive rollers 7 in a sealed manner, and the sliding speed decreases from the outside to the inside. The inner walls of the two sets of roller frames 3 are respectively equipped with an air inlet valve 31 and an air outlet valve 33. The sealing cover 5 has an outlet 51 on one side near the inner conveyor line 4, and the other side is an open design. The outlet 51 is equipped with a sealing door 6 inside.

[0021] The left end of the ore is aligned with the left end of the roller frame 3. The drive roller 7 conveys the ore towards the sealed conveying pipe 2. Simultaneously, the sealing drive plate 9 slides along the drive roller 7, moving from the front roller frame 3 to the back roller frame 3. Since the sliding speed of the sealing drive plate 9 decreases sequentially from the outside to the inside, the multiple sets of sealing drive plates 9 are tilted as a whole, with the left end tilted towards the back. Figure 1 With the center position as a reference, as the ore is conveyed, the sealing transmission plates 9 from left to right are sequentially pressed against the roller frame 3 on the back to achieve sealing of the open end of the sealing cover 5. It should be noted that by setting the folding plate 91, the adjacent sealing transmission plates 9 are misaligned and the folding plate 91 is stretched, which ensures the overall sealing performance without affecting the operation of the adjacent sealing transmission plates 9.

[0022] When the ore is conveyed to the sealing door 6, the conveying stops. The shorter the ore, the slower it approaches the sealing door 6, and the longer the conveying time. The more sealing transmission plates 9 are pressed against the back roller frame 3, the smaller the space for storing the ore in the sealing cover 5. Therefore, the feeding line of this invention can automatically adjust the storage space according to the length of the ore. After the space adjustment is completed, inert gas is injected into the ore storage space through the air inlet valve 31. The inert gas is a mixture of helium and argon, which can give full play to the advantages of the two gases. It can provide a better inert atmosphere and control the surface hardness and other properties of the ore to a certain extent. The helium and argon mixture is usually more economical than a single gas and has greater flexibility in atmosphere control. The specific mixing ratio is adjusted according to the actual type of ore. The density of the inert gas is greater than that of air. The air in the storage space is discharged from bottom to top through the exhaust valve 33. When the storage space is completely filled with inert gas, the air inlet valve 31 and the exhaust valve 33 are closed. Since the storage space is automatically adjusted according to the size of the ore, the amount of inert gas used can be greatly reduced, the conveying cost can be reduced, and the conveying efficiency can be improved.

[0023] Then open the sealing door 6 and transport the ore to the inner conveyor line 4. At this time, the storage space is connected to the sealed conveyor pipe 2 to ensure that no air enters the sealed conveyor pipe 2. When the ore is transported to the next station by the inner conveyor line 4, the sealing door 6 on the other end of the feeding line is opened and the ore is transported to the storage space. Then the sealing transmission plate 9 is opened to take out the ore.

[0024] In embodiment two, based on the above embodiment, an outer spiral groove 72 is provided on the outer surface of the transmission roller 7. The spiral spacing of the outer spiral groove 72 on multiple sets of transmission rollers 7 decreases sequentially from the outside to the inside. The sealing transmission plate 9 is one more set than the transmission roller 7, and the extra set of sealing transmission plates 9 is fixedly installed on the conveying roller 8. A transmission hole 92 is provided inside the sealing transmission plate 9. The transmission roller 7 passes through the transmission hole 92. A transmission protrusion 93 is provided on the inner wall of the transmission hole 92. The transmission protrusion 93 is inserted into the outer spiral groove 72.

[0025] While conveying ore, the transmission roller 7 drives the sealing transmission plate 9 to slide along the transmission roller 7 via the outer spiral groove 72 and the transmission protrusion 93. Since the spiral spacing of the outer spiral groove 72 on the multiple sets of transmission rollers 7 decreases sequentially from the outside to the inside, the sliding speed of the sealing transmission plate 9 can be reduced sequentially from the outside to the inside. Through the setting of this embodiment, it can be ensured that the sliding of the sealing transmission plate 9 is synchronized with the ore conveying, and the transmission is more stable.

[0026] In embodiment three, based on the above embodiments, multiple sets of sprockets 71 are rotatably installed inside the front roller frame 3. The sprockets 71 are fixedly connected to the drive roller 7 and the conveyor roller 8, respectively. The multiple sets of sprockets 71 are connected by chain drive. A conveyor motor is fixedly installed inside the front roller frame 3. The output end of the conveyor motor is fixedly connected to the leftmost sprocket 71. An annular groove 73 is opened at the end of the drive roller 7 away from the sprocket 71. The annular groove 73 is connected to the outer spiral groove 72 and has the same depth as the outer spiral groove 72. Multiple sets of top-pressing cylinders 35 are fixedly installed inside the back roller frame 3. The number of top-pressing cylinders 35 is the same as the number of drive rollers 7.

[0027] The design of the sprocket 71 and chain enables the transmission roller 7 to rotate synchronously, reducing the use of drive. However, this can cause the sealing transmission plates 9 to interfere with each other. Therefore, the design of the annular groove 73 ensures that when the sealing transmission plate 9 is tightly attached to the back roller frame 3, the transmission protrusion 93 disengages from the outer spiral groove 72 and enters the annular groove 73. At this time, the sealing transmission plate 9 will not exert a rotational limiting force on the transmission roller 7, will not affect the rotation of the transmission roller 7, and will not affect the other sealing transmission plates 9 from continuing to be tightly attached to the back roller frame 3.

[0028] Example 4, based on the above examples, further includes an annular groove on the outer surface of the conveying roller 8, and the inner conveying line 4 is a roller conveying line, with the roller having the same structure as the conveying roller 8.

[0029] The annular groove helps keep the ore stable during transportation, especially for materials that are susceptible to external forces. The trough structure provides a certain guiding effect, preventing the material from shifting or tilting, thus ensuring a smooth transportation process.

[0030] Example 5, based on the above examples, further includes a gas supply pipe 21 and an inert gas detection sensor 22 installed at the top of the sealed delivery pipe 2. The design of the gas supply pipe 21 and the inert gas detection sensor 22 can ensure the stability of the gas inside the sealed delivery pipe 2.

[0031] Furthermore, an air inlet pipe 32 and an air outlet pipe 34 are provided at the end of the roller frame 3 furthest from the sealed conveying pipe 2. The air inlet pipe 32 is connected to an inert gas source, and an inert gas detection sensor 22 is installed on the air outlet pipe 34. The air inlet pipe 32 is connected to an air inlet valve 31, and the air outlet pipe 34 is connected to an air outlet valve 33. The air outlet valve 33 is located near the top of the roller frame 3, and the air inlet valve 31 is located near the bottom of the roller frame 3. This design ensures that the exhaust and intake do not affect the sealing performance between the sealed outer cover 5 and the sealed conveying pipe 2.

[0032] Example 6, based on the above examples, further includes: the top of the sealing door 6 is hinged to the inner top of the discharge port 51; a spring piece 61 is provided between the top of the sealing door 6 and the sealing cover 5; a pressure sensor 62 is fixedly installed on the outside of the spring piece 61; the pressure sensor 62 is used to detect the pressure between the spring piece 61 and the sealing door 6; a top rod 63 is slidably connected to the top of the sealing cover 5; the top rod 63 is connected to the sealing door 6 via a transmission steel wire rope 64.

[0033] Since the sealing door 6 requires space to open, there is initially sufficient space between the sealing door 6 and the inner conveyor line 4. Therefore, after introducing inert gas into the storage space, the sealing cover 5 needs to be controlled to move closer to the inner conveyor line 4 to stably achieve ore conveying. Thus, when the sealing cover 5 is close to the inner conveyor line 4, the push rod 63 presses against the sealed conveying pipe 2 and will not move with the sealing cover 5. The push rod 63 slides to the left relative to the sealing cover 5. The push rod 63 drives the sealing door 6 to swing upwards via the transmission wire rope 64, opening the sealing door 6. Because the inner conveyor line 4 is positioned low, the sealing door 6 can move above the inner conveyor line 4 with only a small upward swing angle. Therefore, the sealing door 6... The outer cover 5 does not need to move a long distance. When the discharge port 51 approaches the inner conveyor line 4, the outer cover 5 stops moving. At this time, the sealing door 6 is fully open, and the ore can be smoothly conveyed to the inner conveyor line 4. When the outer cover 5 resets, the sealing door 6 automatically closes under the action of the spring 61. Through the design of the pressure sensor 62, when the ore hits the sealing door 6, the pressure sensor 62 is triggered. The triggering pressure is much less than the elastic force of the spring 61, so the sealing door 6 will not be pushed open at this time. After the pressure sensor 62 is triggered, the conveying roller 8 and the drive roller 7 stop running, and the storage space is adjusted. Inert gas is injected into the storage space. The whole process is automated and the operation is stable.

[0034] Example 7, based on the above examples, further includes: both ends of the sealed conveying pipe 2 are provided with bottom rails 23; the bottom of the sealed outer cover 5 is equipped with a slider 52, which is slidably connected to the bottom rails 23; the bottom of the sealed outer cover 5 is provided with a nut sleeve 53; a drive motor 24 is fixedly installed in the middle of the bottom rails 23; a drive screw 25 is fixedly installed at the output end of the drive motor 24; and the drive screw 25 is threadedly connected to the nut sleeve 53.

[0035] When the drive motor 24 is powered on, the drive motor 24 drives the drive screw 25 to rotate, and the drive screw 25 drives the sealing cover 5 to slide in the sealed conveying pipe 2 through the nut sleeve 53.

[0036] Example 8, based on the above examples, also includes a top inclined design at the open end of the sealing cover 5, which makes it fit the overall shape of the sealing transmission plate 9 better and provides a larger loading space. Sealing rubber pads are provided at the top and bottom of both the sealing transmission plate 9 and the folding plate 91 to improve sealing performance.

[0037] Example 9: An automated transportation method for tunnels, comprising the following steps: S1. Large ore is placed into the inlet feeding line in sequence. The inlet feeding line automatically adjusts the storage space according to the length of the ore. After the space adjustment is completed, a mixture of helium and argon inert gas is injected into the ore storage space through the air inlet valve 31. The air in the storage space is discharged from bottom to top through the exhaust valve 33. When the storage space is completely filled with inert gas, the air inlet valve 31 and the exhaust valve 33 are closed to complete the inlet filling and venting. S2. Open the sealing door 6 and transport the ore to the inner conveyor line 4. At this time, the storage space is connected to the sealed conveyor pipe 2 to ensure that no air enters the sealed conveyor pipe 2. When the ore is transported to the next station by the inner conveyor line 4, the sealing door 6 on the feeding line at the outlet end is opened and the ore is transported to the outlet feeding line. Then the sealing transmission plate 9 is opened to take out the ore, thus completing the low-cost inert gas sealed conveying.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automated transportation device for tunnels, comprising a sealed conveying pipe (2), characterized in that, The sealed conveying pipe (2) is provided with an inner conveying line (4), and the inlet and outlet of the sealed conveying pipe (2) are slidably connected to a feeding line; The feeding line includes a sealed outer cover (5) that is slidably connected to the inlet and outlet of the sealed conveying pipe (2). Two sets of roller frames (3) are fixedly installed inside the sealed outer cover (5). Multiple sets of transmission rollers (7) and multiple sets of conveying rollers (8) are rotatably installed between the two sets of roller frames (3). The conveying rollers (8) are located inside the sealed outer cover (5) on the side close to the sealed conveying pipe (2). Multiple sets of sealed transmission plates (9) are slidably connected inside the sealed outer cover (5). A folding plate (91) is provided between adjacent sealed transmission plates (9). The sealed transmission plates (9) can slide along the transmission rollers (7) in a sealed manner, and the sliding speed decreases from the outside to the inside. The inner walls of the two sets of roller frames (3) are respectively provided with an air inlet valve (31) and an exhaust valve (33). The sealing cover (5) has an outlet (51) on one side near the inner conveyor line (4) and an open design on the other side. The outlet (51) is provided with a sealing door (6). The outer surface of the transmission roller (7) is provided with an outer spiral groove (72). The spiral spacing of the outer spiral groove (72) on multiple sets of transmission rollers (7) decreases sequentially from the outside to the inside. The sealing transmission plate (9) is one more than the transmission roller (7), and the extra sealing transmission plate (9) is fixedly installed on the conveying roller (8). The inside of the sealing transmission plate (9) is provided with a transmission hole (92). The transmission roller (7) passes through the transmission hole (92). The inner wall of the transmission hole (92) is provided with a transmission protrusion (93), which is inserted into the outer spiral groove (72).

2. The automated transportation equipment for tunnels according to claim 1, characterized in that, The roller frame (3) on the front side has multiple sets of sprockets (71) installed inside. The sprockets (71) are fixedly connected to the drive roller (7) and the conveyor roller (8) respectively. The multiple sets of sprockets (71) are connected by chain drive. The roller frame (3) on the front side has a conveyor motor fixedly installed inside. The output end of the conveyor motor is fixedly connected to the leftmost sprocket (71). The drive roller (7) has an annular groove (73) at the end away from the sprocket (71). The annular groove (73) is connected to the outer spiral groove (72) and has the same depth as the outer spiral groove (72). The roller frame (3) on the back side has multiple sets of top pressure cylinders (35) fixedly installed inside. The number of top pressure cylinders (35) is the same as the number of drive rollers (7).

3. The automated transportation equipment for tunnels according to claim 2, characterized in that, The outer surface of the conveying roller (8) is provided with an annular groove, and the inner conveying line (4) is a roller conveying line, and the roller has the same structure as the conveying roller (8).

4. The automated transportation equipment for tunnels according to claim 1, characterized in that, The top of the sealed delivery pipe (2) is provided with a gas supply pipe (21) and an inert gas detection sensor (22).

5. An automated transportation device for tunnels according to claim 4, characterized in that, The roller frame (3) is provided with an air inlet pipe (32) and an exhaust pipe (34) at the end away from the sealed conveying pipe (2). The air inlet pipe (32) is connected to an inert gas source. An inert gas detection sensor (22) is installed on the exhaust pipe (34). The air inlet pipe (32) is connected to an air inlet valve (31). The exhaust pipe (34) is connected to an exhaust valve (33). The exhaust valve (33) is close to the top of the roller frame (3), and the air inlet valve (31) is close to the bottom of the roller frame (3).

6. The automated transportation equipment for tunnels according to claim 1, characterized in that, The top of the sealing door (6) is hinged to the inner top of the discharge port (51). A spring piece (61) is provided between the top of the sealing door (6) and the sealing cover (5). A pressure sensor (62) is fixedly installed on the outside of the spring piece (61). The pressure sensor (62) is used to detect the pressure between the spring piece (61) and the sealing door (6). A top rod (63) is slidably connected to the top of the sealing cover (5). The top rod (63) is connected to the sealing door (6) through a transmission steel wire rope (64).

7. An automated transportation device for tunnels according to claim 1, characterized in that, Both ends of the sealed conveying pipe (2) are provided with bottom rails (23). The bottom of the sealed outer cover (5) is equipped with a slider (52), which is slidably connected to the bottom rail (23). The bottom of the sealed outer cover (5) is provided with a nut sleeve (53). The middle of the bottom rail (23) is fixedly installed with a drive motor (24). The output end of the drive motor (24) is fixedly installed with a drive screw (25), which is threadedly connected to the nut sleeve (53).

8. An automated transportation device for tunnels according to claim 1, characterized in that, The top of the open end of the sealing cover (5) is designed to be inclined, and the top and bottom ends of the sealing transmission plate (9) and the folding plate (91) are provided with sealing rubber pads.

9. An automated transportation method for tunnels, employing an automated transportation device for tunnels as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. Large ore is placed into the inlet feeding line in sequence. The inlet feeding line automatically adjusts the storage space according to the length of the ore. After the space adjustment is completed, helium and argon mixed inert gas are injected into the ore storage space through the air inlet valve (31). The air in the storage space is discharged from bottom to top through the exhaust valve (33). When the storage space is completely filled with inert gas, the air inlet valve (31) and the exhaust valve (33) are closed to complete the inlet filling and exhaust. S2. Open the sealing door (6) and transport the ore to the inner conveying line (4). At this time, the storage space is connected to the sealed conveying pipe (2) to ensure that no air enters the sealed conveying pipe (2). When the ore is transported to the next station with the inner conveying line (4), the sealing door (6) on the feeding line at the outlet end is opened, and the ore is transported to the outlet feeding line. Then the sealing transmission plate (9) is opened to take out the ore, thus completing the low-cost inert gas sealed conveying.

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