Transport device and heading machine

Abstract

The application provides a conveying device and a tunneling machine, and relates to the technical field of tunneling machines, wherein the conveying device comprises: a first conveyor, one end of the first conveyor being a first discharge end; a second conveyor, one end of the second conveyor being a second feeding end, and the other end of the second conveyor being a second discharge end; a turning connecting device, which is used for connecting the first discharge end and the second feeding end, and the second conveyor is turned up and down and / or swings left and right relative to the first conveyor through the turning connecting device; a guide rail, which is arranged on the top of a roadway; and a guide rolling device, which is used for connecting the guide rail and the second discharge end, and the second conveyor is turned up and down relative to the guide rail through the guide rolling device.

Description

Technical Field

[0001] This invention relates to the field of tunneling machine technology, and more specifically, to a transport device and a tunneling machine. Background Technology

[0002] Cantilever roadheaders are widely used in coal mine tunneling. During operation, the shovels collect coal, and a first conveyor connected to the shovels transports the coal from the front to the rear of the roadheader. A second conveyor, installed below the first conveyor, then continues transporting the coal, ensuring continuous transport.

[0003] In related technologies, the front end of the second transport machine is connected to the rear support of the tunneling machine by a pin shaft, and the rear end of the second transport machine rides on a pre-set track in the tunnel by a trolley.

[0004] In the process of developing this invention, the inventors discovered at least the following problems in the related technology: the second transport machine can only rotate up and down relative to the rear support of the tunneling machine around the axis of the pivot pin, resulting in low flexibility. Furthermore, the track is usually laid at the bottom of the tunnel, preventing the second transport machine from being suspended in the air, thus reducing space utilization. Summary of the Invention

[0005] In order to solve or improve at least one of the above-mentioned technical problems, one object of the present invention is to provide a transportation device.

[0006] Another object of the present invention is to provide a tunneling machine having the above-described transport device.

[0007] To achieve the above objectives, a first aspect of the present invention provides a transport device, comprising: a first conveyor, one end of which is a first discharge end; a second conveyor, one end of which is a second feed end, and the other end of which is a second discharge end; a steering connection device for connecting the first discharge end and the second feed end, wherein the second conveyor rotates up and down and / or swings left and right relative to the first conveyor via the steering connection device; a guide rail disposed at the top of a tunnel; and a guiding rolling device for connecting the guide rail and the second discharge end, wherein the second conveyor rotates up and down relative to the guide rail via the guiding rolling device.

[0008] According to the technical solution of the transportation device provided by the present invention, the second feed end of the second conveyor is directly connected to the first discharge end of the first conveyor through a steering connection device, and the second conveyor can rotate up and down and / or swing left and right relative to the first conveyor through the steering connection device, thus increasing its flexibility. Furthermore, by placing the guide rail at the top of the tunnel, the second conveyor can be hoisted as a whole, allowing it to adapt to any posture of the tunneling machine without interference. This helps ensure the continuity of coal transportation, meets the special transportation requirements of trackless tunnels, and improves space utilization.

[0009] Specifically, the transport device includes a first conveyor, a second conveyor, a steering connection device, guide rails, and a guiding rolling device. One end of the first conveyor is the first discharge end. Optionally, the other end of the first conveyor is the first feed end. The first feed end of the first conveyor is used to connect with the shovel of the tunneling machine. When the tunneling machine is working, the shovel is responsible for collecting coal, and the first conveyor, connected to the shovel, is responsible for transporting the coal from the first feed end to the first discharge end.

[0010] Furthermore, one end of the second conveyor is the second feed end, and the other end is the second discharge end. Further, the steering connection device is connected to the first discharge end of the first conveyor and also to the second feed end of the second conveyor. The steering connection device is used to connect the first discharge end of the first conveyor and the second feed end of the second conveyor. The second feed end of the second conveyor is directly connected to the first discharge end of the first conveyor via the steering connection device. Furthermore, the second conveyor can rotate up and down and / or swing left and right relative to the first conveyor via the steering connection device. Compared to connecting the second feed end of the second conveyor to the rear support of the tunneling machine via a pin, the second conveyor has multiple degrees of rotational freedom with the first conveyor, offering greater flexibility.

[0011] Furthermore, the guide rail is located at the top of the roadway. The guiding rolling device is connected to the guide rail and also to the second discharge end of the second conveyor. The guiding rolling device connects the guide rail and the second discharge end of the second conveyor. The second conveyor can rotate up and down relative to the guide rail via the guiding rolling device. Since the second feed end of the second conveyor is directly connected to the first discharge end of the first conveyor via a steering connection device, and the second discharge end of the second conveyor is connected to the guide rail via the guiding rolling device, the second conveyor can be hoisted as a whole. In this invention, the method of hoisting the second conveyor as a whole, compared to the method of having the second conveyor ride on a track laid at the bottom of the roadway via a trolley, is beneficial for improving space utilization and meeting the special transportation requirements of trackless tunnels. Furthermore, since the second conveyor can rotate up and down and / or swing left and right relative to the first conveyor via the steering connection device, and can rotate up and down relative to the guide rail via the guiding rolling device, the second conveyor can adapt to any posture of the tunneling machine without interference, which helps ensure the continuity of coal transportation. Optionally, the guide rail is a temporarily installed I-beam.

[0012] In the technical solution defined by this invention, the second feed end of the second conveyor is directly connected to the first discharge end of the first conveyor via a steering connection device. Furthermore, the second conveyor can rotate up and down and / or swing left and right relative to the first conveyor via the steering connection device, resulting in greater flexibility. Additionally, by placing the guide rail at the top of the tunnel, the second conveyor can be hoisted as a whole. The second conveyor can adapt to any posture of the tunneling machine without interference, which helps ensure the continuity of coal transportation, meets the special transportation requirements of trackless tunnels, and also improves space utilization.

[0013] In addition, the technical solution provided by the present invention may also have the following additional technical features:

[0014] Optionally, the steering connection device includes: a first part, which is rotatably connected to the second feed end via a first pin, and the second conveyor rotates up and down relative to the first conveyor around the axis of the first pin; and a second part, which is rotatably connected to the first part, and the second conveyor swings left and right relative to the first conveyor through the rotatable connection between the second part and the first part.

[0015] In this technical solution, the steering connection device includes a first part and a second part. Specifically, the first part of the steering connection device is rotatably connected to the second feed end of the second conveyor via a first pin. Optionally, the second conveyor includes a head frame, an intermediate frame, and a tail frame connected in sequence. The end of the head frame away from the intermediate frame is the second feed end. The first part is rotatably connected to the head frame via the first pin. The second conveyor can rotate up and down relative to the first conveyor around the axis of the first pin.

[0016] Furthermore, the second part is rotatably connected to the first part, meaning that the second part and the first part can rotate relative to each other. The second transport aircraft swings left and right relative to the first transport aircraft through the rotatable connection between the second part and the first part. In other words, by rotating relative to the first part, the relative rotation between the second transport aircraft and the first transport aircraft can be achieved, thereby enabling the second transport aircraft to swing left and right.

[0017] In the technical solution defined by the present invention, the second conveyor can rotate up and down and / or swing left and right relative to the first conveyor through a steering connection device. Compared with the method of connecting the second feed end of the second conveyor to the rear support of the tunneling machine through a pin, the second conveyor and the first conveyor have multiple degrees of rotational freedom, which is more flexible.

[0018] Optionally, the first part includes a fixed seat ring, the second part includes a rotating ring, one side of the rotating ring abuts against one side of the fixed seat ring, and the steering connection device further includes: a third part, including a first plate and a second plate, one side of the second plate is connected to the connecting side of the first plate, the first plate and the second plate form an L-shaped structure, the connecting side of the first plate abuts against the other side of the rotating ring, the distance between the other side of the second plate and the connecting side is greater than the thickness of the rotating ring, and the other side of the second plate is connected to the fixed seat ring.

[0019] In this technical solution, the first part includes a fixed seat ring, and the second part includes a rotating ring. The fixed seat ring and the rotating ring can rotate relative to each other. Optionally, the center line of the fixed seat ring is parallel to the center line of the rotating ring, and the second conveyor swings left and right relative to the first conveyor around the center line of the fixed seat ring.

[0020] Furthermore, the steering connection device also includes a third part. Specifically, the third part includes a first plate and a second plate connected together. One side of the first plate is the connecting side. One side of the second plate is connected to the connecting side of the first plate. The first plate and the second plate form an L-shaped structure. Furthermore, one side of the rotating ring abuts against one side of the fixed seat ring. The connecting side of the first plate abuts against the other side of the rotating ring. The rotating ring is located between the fixed seat ring and the first plate. Furthermore, the distance between the other side of the second plate and the connecting side is greater than the thickness of the rotating ring, and the other side of the second plate is connected to the fixed seat ring. By ensuring that the distance between the other side of the second plate and the connecting side is greater than the thickness of the rotating ring, it is ensured that the rotating ring can rotate relative to the fixed seat ring. Through the relative rotation between the second part and the first part, the relative rotation between the second transport machine and the first transport machine can be realized, thereby enabling the second transport machine to swing left and right.

[0021] Optionally, the first plate and the second plate can be detachably connected for easy assembly and disassembly; or, the first plate and the second plate can be fixed together by welding, which simplifies the processing method; or, the first plate and the second plate can be an integral structure, which has better mechanical properties and higher connection strength compared to post-processing, and helps to reduce the number of parts and improve assembly efficiency.

[0022] Optionally, the second plate and the fixed seat ring are detachably connected via a first connecting member. Optionally, the steering connection device also includes a first washer, with the first connecting member passing through the first washer, the second plate, and the fixed seat ring. The first washer helps reduce frictional damage to the working surfaces and improves service life. Optionally, the first connecting member is a first bolt.

[0023] Optionally, the first part further includes: a third plate, connected to the fixed seat ring, and the third plate is rotatably connected to the second feed end via a first pin.

[0024] In this technical solution, the first part also includes a third plate. Specifically, the third plate is connected to the fixed seat ring. The third plate is rotatably connected to the second feed end of the second conveyor via a first pin. Optionally, the third plate of the first part is rotatably connected to the head frame of the second conveyor via the first pin. The second conveyor can rotate up and down relative to the first conveyor around the axis of the first pin. By providing the third plate, it is beneficial to increase the installation space between the first part and the second feed end, ensuring the connection strength between the two in the connected state.

[0025] Optionally, the third plate and the fixed seat ring can be detachably connected for easy assembly and disassembly; or, the third plate and the fixed seat ring can be fixed to each other by welding, which simplifies the processing method; or, the third plate and the fixed seat ring can be an integral structure, which has better mechanical properties and higher connection strength compared to post-processing, and helps to reduce the number of parts and improve assembly efficiency.

[0026] Optionally, the center line of the fixed seat ring is parallel to the center line of the rotating ring, and the second transport machine swings left and right relative to the first transport machine around the center line of the fixed seat ring.

[0027] In this technical solution, this design allows for multiple degrees of rotational freedom between the second and first transport aircraft, resulting in greater flexibility. Optionally, the centerline of the fixed seat ring is perpendicular to the axis of the first pin.

[0028] Optionally, the steering connection device further includes: a material blocking assembly connected to the second part, the material blocking assembly being disposed between the first discharge end and the second feed end, the first discharge end being disposed above the second feed end.

[0029] In this technical solution, the steering connection device also includes a material-blocking assembly. Specifically, the material-blocking assembly is connected to the second part. Optionally, the material-blocking assembly and the rotating ring of the second part are detachably connected, facilitating disassembly and assembly by workers and aiding in maintenance or replacement. Further, the material-blocking assembly is located between the first discharge end and the second feed end, with the first discharge end positioned above the second feed end. By installing the material-blocking assembly, most of the coal falling from the first discharge end can be collected and fed to the second feed end, allowing the second conveyor to continue transporting the coal. This also helps to prevent falling coal from injuring workers, thus improving safety performance.

[0030] Optionally, the material stop assembly includes: a material stop member; and a fourth plate connected to the material stop member, and the fourth plate is connected to the second part.

[0031] In this technical solution, the material-blocking assembly includes a material-blocking component and a fourth plate. Specifically, the fourth plate is connected to the material-blocking component and also to the second part. The fourth plate is used to connect the material-blocking component and the second part. Optionally, the material-blocking component is made of rubber. By setting the material-blocking component, on the one hand, most of the coal falling from the first discharge end can be gathered to the second feed end; on the other hand, it can also buffer the coal.

[0032] Optionally, the fourth plate and the rotating ring of the second part are detachably connected via a second connector. Optionally, the stop assembly also includes a second washer, with the second connector passing through the second washer, the fourth plate, and the second part. The second washer helps reduce frictional damage to the working surface and improves service life. Optionally, the second connector is a second bolt.

[0033] Optionally, the stop component may have a certain angle of bending.

[0034] Optionally, the guide rail has a groove, and the guiding rolling device includes: a rolling frame, which is rotatably connected to the second discharge end via a second pin; a vertical roller, which is rotatably mounted on the rolling frame, with its circumferential sidewall abutting against the groove wall; and a horizontal roller, which is rotatably mounted on the rolling frame, with its centerline perpendicular to the centerline of the vertical roller, and its circumferential sidewall abutting against the groove wall.

[0035] In this technical solution, the guiding rolling device includes a rolling frame, vertical rollers, and horizontal rollers. Specifically, the rolling frame is rotatably connected to the second discharge end of the second conveyor via a second pin. Optionally, the second conveyor includes a head frame, an intermediate frame, and a tail frame connected in sequence. The end of the tail frame away from the intermediate frame is the second discharge end. The rolling frame and the tail frame are rotatably connected via a second pin. The second conveyor can rotate up and down relative to the rolling frame around the axis of the second pin.

[0036] Furthermore, the vertical roller is rotatably mounted on the rolling frame. The vertical roller can rotate relative to the rolling frame. Optionally, there are multiple vertical rollers. Further, the guide rail has a groove. The circumferential sidewall of the vertical roller abuts against the groove wall. Further, the horizontal roller is rotatably mounted on the rolling frame. The horizontal roller can rotate relative to the rolling frame. Optionally, there are multiple horizontal rollers. The centerline of the horizontal roller is perpendicular to the centerline of the vertical roller. The circumferential sidewall of the horizontal roller abuts against the groove wall. By providing the horizontal and vertical rollers, a sliding connection between the rolling frame and the guide rail can be achieved.

[0037] Optionally, the guide rolling device further includes: a first support shaft passing through the rolling frame, the first support shaft being fixed relative to the rolling frame; a first copper sleeve being sleeved on the first support shaft, the vertical roller being sleeved on the first copper sleeve, and the vertical roller rotating relative to the first support shaft through the first copper sleeve.

[0038] In this technical solution, the guiding rolling device further includes a first support shaft and a first copper sleeve. Specifically, the first support shaft passes through the rolling frame. The first support shaft is fixed relative to the rolling frame. Optionally, the rolling frame has a first mounting hole, and one end of the first support shaft passes through the first mounting hole. The rolling frame also has a first limiting groove, and the first limiting groove communicates with the first mounting hole. The guiding rolling device further includes a limiting plate. The limiting plate is disposed in the first limiting groove, and the limiting plate is connected to the first support shaft through a third connecting member. Optionally, the third connecting member is a bolt or a screw.

[0039] Furthermore, a first copper sleeve is fitted onto the first support shaft, and the vertical roller is fitted onto the first copper sleeve. The vertical roller rotates relative to the first support shaft via the first copper sleeve. The first copper sleeve has good wear resistance, and by setting the first copper sleeve, relative rotation between the vertical roller and the first support shaft can be achieved. Optionally, the vertical roller achieves a rotatable connection with the first support shaft via a bearing.

[0040] Optionally, one end of the first support shaft passes through the rolling frame, and the other end of the first support shaft is provided with a first slot. The guiding rolling device further includes: a first retaining spring, which is provided in the first slot, and a vertical roller is provided between the first retaining spring and the rolling frame.

[0041] In this technical solution, the guiding rolling device also includes a first retaining ring. Specifically, one end of the first support shaft passes through the rolling frame, and the other end of the first support shaft is provided with a first retaining groove. The first retaining ring is disposed in the first retaining groove. The vertical roller is disposed between the first retaining ring and the rolling frame. By providing the first retaining groove and the first retaining ring, the vertical roller can be axially limited to prevent it from detaching from the first support shaft.

[0042] Optionally, the guide rolling device further includes: at least two first thrust washers, the first thrust washers being sleeved on the first support shaft, at least one first thrust washer being disposed on one side of the vertical roller, and at least one first thrust washer being disposed on the other side of the vertical roller.

[0043] In this technical solution, the guiding rolling device further includes a first thrust washer. Specifically, the first thrust washer is sleeved on the first support shaft. The number of first thrust washers is at least two, that is, there can be two or more first thrust washers. At least one first thrust washer is provided on one side of the vertical roller, and at least one first thrust washer is provided on the other side of the vertical roller. At least one first thrust washer is provided on each side of the vertical roller. By providing the first thrust washer, the vertical roller can be axially limited.

[0044] Optionally, the guide rolling device further includes: a second support shaft passing through the rolling frame, the second support shaft being fixed relative to the rolling frame; a second copper sleeve sleeved on the second support shaft, the horizontal roller being sleeved on the second copper sleeve, and the horizontal roller rotating relative to the second support shaft through the second copper sleeve.

[0045] In this technical solution, the guiding rolling device further includes a second support shaft and a second copper sleeve. Specifically, the second support shaft passes through the rolling frame. The second support shaft is fixed relative to the rolling frame. Optionally, the rolling frame has a second mounting hole, and one end of the second support shaft passes through the second mounting hole. Further, the second copper sleeve is fitted onto the second support shaft, and the horizontal roller is fitted onto the second copper sleeve. The horizontal roller rotates relative to the second support shaft via the second copper sleeve. The second copper sleeve has good wear resistance, and by setting the second copper sleeve, relative rotation between the horizontal roller and the second support shaft can be achieved. Optionally, the horizontal roller achieves a rotatable connection with the second support shaft through a bearing.

[0046] Optionally, one end of the second support shaft passes through the rolling frame, and the other end of the second support shaft is provided with a second slot. The guiding rolling device also includes a second retaining spring, which is disposed in the second slot, and a horizontal roller is disposed between the second retaining spring and the rolling frame.

[0047] In this technical solution, the guiding rolling device also includes a second retaining ring. Specifically, one end of the second support shaft passes through the rolling frame, and the other end of the second support shaft is provided with a second retaining groove. The second retaining ring is disposed in the second retaining groove. The cross roller is disposed between the second retaining ring and the rolling frame. By providing the second retaining groove and the second retaining ring, the cross roller can be axially limited to prevent it from detaching from the second support shaft.

[0048] Optionally, the guide rolling device further includes: at least two second thrust washers, the second thrust washers being sleeved on the second support shaft, at least one second thrust washer being disposed on one side of the horizontal roller, and at least one second thrust washer being disposed on the other side of the horizontal roller.

[0049] In this technical solution, the guiding rolling device further includes a second thrust washer. Specifically, the second thrust washer is sleeved on the second support shaft. The number of second thrust washers is at least two, that is, there can be two or more second thrust washers. At least one second thrust washer is provided on one side of the horizontal roller, and at least one second thrust washer is provided on the other side of the horizontal roller. At least one second thrust washer is provided on each side of the horizontal roller. By providing the second thrust washer, the horizontal roller can be axially limited.

[0050] A second aspect of the present invention provides a tunneling machine, comprising: a shovel plate; a transport device according to any of the above technical solutions, wherein the other end of the first transporter of the transport device is a first feed end, and the first feed end is connected to the shovel plate.

[0051] According to the technical solution of the tunneling machine of the present invention, the tunneling machine includes a shovel and a conveying device as described in any of the above technical solutions. One end of the first conveyor of the conveying device is a first discharge end, and the other end of the first conveyor is a first feed end. The first feed end of the first conveyor is connected to the shovel. When the tunneling machine is working, the shovel is responsible for collecting coal, and the first conveyor connected to the shovel is responsible for transporting the coal from the first feed end to the first discharge end. A second conveyor can then continue to transport coal to achieve continuous coal transport.

[0052] Since the tunneling machine includes any of the transportation devices mentioned in the first aspect above, it has the beneficial effects of any of the above technical solutions, which will not be elaborated here.

[0053] Additional aspects and advantages of the technical solutions of the present invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0054] Figure 1 A schematic diagram of a transport device according to an embodiment of the present invention is shown;

[0055] Figure 2 A first schematic diagram of a steering connection device according to an embodiment of the present invention is shown;

[0056] Figure 3 A second schematic diagram of a steering connection device according to an embodiment of the present invention is shown;

[0057] Figure 4 A first schematic diagram of a guide rolling device according to an embodiment of the present invention is shown;

[0058] Figure 5 A second schematic diagram of a guide rolling device according to an embodiment of the present invention is shown;

[0059] Figure 6 A schematic diagram of a second transport aircraft according to an embodiment of the present invention is shown;

[0060] Figure 7 A schematic diagram of a tunneling machine according to an embodiment of the present invention is shown.

[0061] in, Figures 1 to 7 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0062] 100: Conveying device; 110: First conveyor; 111: First feed end; 112: First discharge end; 120: Second conveyor; 1211: Head frame; 1212: Second feed end; 1213: Guide roller; 1214: Buffer roller; 1221: Intermediate frame; 1222: Support roller; 1231: Tail frame; 1232: Second discharge end; 1233: Drive roller; 124: Belt; 125: Fifth plate; 126: Sixth plate; 130: Steering connection device; 131: First part; 1311: Fixed seat ring; 1312: Third plate; 132: Second part; 1321: Rotating ring; 133: Third part; 1331: First plate; 1332: Second plate; 134: Material stop Components; 1341: Material stop; 1342: Fourth plate; 135: First pin; 140: Guide rail; 141: Slide groove; 150: Guide rolling device; 151: Rolling frame; 1511: First mounting hole; 1512: First limiting groove; 1521: Vertical roller; 1522: First support shaft; 1523: First slot; 1524: First copper sleeve; 1525: First snap ring; 1526: First thrust washer; 1531: Horizontal roller; 1532: Second support shaft; 1533: Second slot; 1534: Second copper sleeve; 1535: Second snap ring; 1536: Second thrust washer; 154: Second pin; 155: Limiting plate; 156: Third connecting piece; 200: Tunneling machine; 210: Shovel plate. Detailed Implementation

[0063] To better understand the above-described objectives, features, and advantages of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0064] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, embodiments of the invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0065] The following reference Figures 1 to 7 The present invention describes a transport device 100 and a tunneling machine 200 provided according to some embodiments thereof.

[0066] In one embodiment of the invention, such as Figure 1 and Figure 7As shown, the conveying device 100 includes a first conveyor 110, a second conveyor 120, a steering connection device 130, a guide rail 140, and a guiding rolling device 150. One end of the first conveyor 110 is a first discharge end 112. Optionally, the other end of the first conveyor 110 is a first feed end 111. The first feed end 111 of the first conveyor 110 is used to connect with the shovel 210 of the tunneling machine 200. When the tunneling machine 200 is working, the shovel 210 is responsible for collecting coal, and the first conveyor 110, connected to the shovel 210, is responsible for transporting the coal from the first feed end 111 to the first discharge end 112.

[0067] Further, one end of the second conveyor 120 is a second feed end 1212. The other end of the second conveyor 120 is a second discharge end 1232. Further, the steering connection device 130 is connected to the first discharge end 112 of the first conveyor 110, and the steering connection device 130 is also connected to the second feed end 1212 of the second conveyor 120. The steering connection device 130 is used to connect the first discharge end 112 of the first conveyor 110 and the second feed end 1212 of the second conveyor 120. The second feed end 1212 of the second conveyor 120 is directly connected to the first discharge end 112 of the first conveyor 110 via the steering connection device 130. Furthermore, the second conveyor 120 can rotate up and down and / or swing left and right relative to the first conveyor 110 via the steering connection device 130. Compared with the method of connecting the second feed end 1212 of the second conveyor 120 to the rear support of the tunneling machine 200 via a pin, the second conveyor 120 and the first conveyor 110 have multiple degrees of rotational freedom, which is more flexible.

[0068] Furthermore, the guide rail 140 is located at the top of the tunnel. The guide rolling device 150 is connected to the guide rail 140 and also to the second discharge end 1232 of the second conveyor 120. The guide rolling device 150 connects the guide rail 140 and the second discharge end 1232 of the second conveyor 120. The second conveyor 120 can rotate up and down relative to the guide rail 140 via the guide rolling device 150. Since the second feed end 1212 of the second conveyor 120 is directly connected to the first discharge end 112 of the first conveyor 110 via the steering connection device 130, and the second discharge end 1232 of the second conveyor 120 is connected to the guide rail 140 via the guide rolling device 150, the second conveyor 120 can be hoisted as a whole. In this invention, the method of hoisting the second conveyor 120 as a whole, compared to the method of having the second conveyor 120 ride on a track laid at the bottom of the tunnel via a trolley, is beneficial for improving space utilization and meeting the special transportation requirements of trackless tunnels. Furthermore, since the second conveyor 120 can rotate up and down and / or swing left and right relative to the first conveyor 110 via the steering connection device 130, and can rotate up and down relative to the guide rail 140 via the guide rolling device 150, the second conveyor 120 can adapt to any posture of the tunneling machine 200 without interference, which helps ensure the continuity of coal transportation. Optionally, the guide rail 140 is a temporarily installed I-beam.

[0069] In the technical solution defined by this invention, the second feed end 1212 of the second conveyor 120 is directly connected to the first discharge end 112 of the first conveyor 110 through a steering connection device 130. Furthermore, the second conveyor 120 can rotate up and down and / or swing left and right relative to the first conveyor 110 through the steering connection device 130, thus increasing its flexibility. Additionally, by placing the guide rail 140 at the top of the tunnel, the second conveyor 120 can be hoisted as a whole. The second conveyor 120 can adapt to any posture of the tunneling machine 200 without interference, which helps ensure the continuity of coal transportation, meets the special transportation requirements of trackless tunnels, and also improves space utilization.

[0070] In one embodiment of the invention, such as Figure 1 , Figure 2 and Figure 3As shown, the steering connection device 130 includes a first part 131 and a second part 132. Specifically, the first part 131 of the steering connection device 130 is rotatably connected to the second feed end 1212 of the second conveyor 120 via a first pin 135. Optionally, the second conveyor 120 includes a head frame 1211, an intermediate frame 1221, and a tail frame 1231 connected in sequence. The end of the head frame 1211 away from the intermediate frame 1221 is the second feed end 1212. The first part 131 is rotatably connected to the head frame 1211 via the first pin 135. The second conveyor 120 is capable of rotating up and down relative to the first conveyor 110 about the axis of the first pin 135.

[0071] Furthermore, the second part 132 is rotatably connected to the first part 131, meaning that the second part 132 and the first part 131 can rotate relative to each other. The second transport 120 swings left and right relative to the first transport 110 through the rotatable connection between the second part 132 and the first part 131. In other words, through the relative rotation between the second part 132 and the first part 131, the relative rotation between the second transport 120 and the first transport 110 can be achieved, thereby realizing the left and right swinging of the second transport 120.

[0072] In the technical solution defined by the present invention, the second conveyor 120 can rotate up and down and / or swing left and right relative to the first conveyor 110 through the steering connection device 130. Compared with the method of connecting the second feed end 1212 of the second conveyor 120 to the rear support of the tunneling machine 200 through the pin, the second conveyor 120 and the first conveyor 110 have multiple degrees of rotational freedom, which is more flexible.

[0073] The first part 131 includes a fixed seat ring 1311, such as Figure 2 and Figure 3 As shown, the second part 132 includes a rotating ring 1321. The fixed seat ring 1311 and the rotating ring 1321 can rotate relative to each other. Optionally, the center line of the fixed seat ring 1311 is parallel to the center line of the rotating ring 1321, and the second transport machine 120 swings left and right relative to the first transport machine 110 about the center line of the fixed seat ring 1311.

[0074] Furthermore, such as Figure 1 , Figure 2 and Figure 3As shown, the steering connection device 130 also includes a third part 133. Specifically, the third part 133 includes a first plate 1331 and a second plate 1332 connected together. One side of the first plate 1331 is the connecting side. One side of the second plate 1332 is connected to the connecting side of the first plate 1331. The first plate 1331 and the second plate 1332 form an L-shaped structure. Further, one side of the rotating ring 1321 abuts against one side of the fixed seat ring 1311. The connecting side of the first plate 1331 abuts against the other side of the rotating ring 1321. The rotating ring 1321 is disposed between the fixed seat ring 1311 and the first plate 1331. Further, the distance between the other side of the second plate 1332 and the connecting side is greater than the thickness of the rotating ring 1321, and the other side of the second plate 1332 is connected to the fixed seat ring 1311. By ensuring that the distance between the other side of the second plate 1332 and the connecting side is greater than the thickness of the rotating ring 1321, it is ensured that the rotating ring 1321 can rotate relative to the fixed seat ring 1311. Through the relative rotation between the second part 132 and the first part 131, the relative rotation between the second transport machine 120 and the first transport machine 110 can be realized, thereby enabling the second transport machine 120 to swing left and right.

[0075] Optionally, the first plate 1331 and the second plate 1332 can be detachably connected for easy assembly and disassembly; or, the first plate 1331 and the second plate 1332 can be fixed to each other by welding, which simplifies the processing method; or, the first plate 1331 and the second plate 1332 can be an integral structure, which has better mechanical properties and higher connection strength than post-processing, and helps to reduce the number of parts and improve assembly efficiency.

[0076] Optionally, the second plate 1332 and the fixed seat ring 1311 are detachably connected via a first connecting member. Optionally, the steering connection device 130 further includes a first washer, and the first connecting member passes through the first washer, the second plate 1332, and the fixed seat ring 1311. By providing the first washer, frictional damage to the working surfaces is reduced, and service life is improved. Optionally, the first connecting member is a first bolt.

[0077] In another embodiment, such as Figure 2 and Figure 3 As shown, the first part 131 also includes a third plate 1312. Specifically, the third plate 1312 is connected to the fixed seat ring 1311. The third plate 1312 is rotatably connected to the second feed end 1212 of the second conveyor 120 via a first pin 135. Optionally, the third plate 1312 of the first part 131 is rotatably connected to the head frame 1211 of the second conveyor 120 via the first pin 135. The second conveyor 120 can rotate up and down relative to the first conveyor 110 about the axis of the first pin 135. By providing the third plate 1312, it is beneficial to increase the installation space between the first part 131 and the second feed end 1212, and ensure the connection strength between the two in the connected state.

[0078] Optionally, the third plate 1312 and the fixed seat ring 1311 can be detachably connected for easy disassembly and assembly; or, the third plate 1312 and the fixed seat ring 1311 can be fixed to each other by welding, which simplifies the processing method; or, the third plate 1312 and the fixed seat ring 1311 can be an integral structure, which has better mechanical properties and higher connection strength compared to post-processing, and helps to reduce the number of parts and improve assembly efficiency.

[0079] In another embodiment, the centerline of the fixed seat ring 1311 is parallel to the centerline of the rotating ring 1321, and the second transport 120 swings left and right relative to the first transport 110 about the centerline of the fixed seat ring 1311. This design allows the second transport 120 to have multiple degrees of rotational freedom between the second transport 120 and the first transport 110, providing greater flexibility. Optionally, the centerline of the fixed seat ring 1311 is perpendicular to the axis of the first pin 135.

[0080] In one embodiment of the invention, such as Figure 1 , Figure 2 and Figure 3 As shown, the steering connection device 130 also includes a baffle assembly 134. Specifically, the baffle assembly 134 is connected to the second part 132. Optionally, the baffle assembly 134 and the rotating ring 1321 of the second part 132 are detachably connected, facilitating disassembly and assembly by workers and aiding in maintenance or replacement. Further, the baffle assembly 134 is located between the first discharge end 112 and the second feed end 1212, with the first discharge end 112 positioned above the second feed end 1212. By setting the baffle assembly 134, most of the coal falling from the first discharge end 112 can be gathered to the second feed end 1212, allowing the second conveyor 120 to continue transporting the coal. This also helps to prevent falling coal from injuring workers, thus improving safety performance.

[0081] Furthermore, such as Figure 3 and Figure 4 As shown, the baffle assembly 134 includes a baffle element 1341 and a fourth plate 1342. Specifically, the fourth plate 1342 is connected to the baffle element 1341 and also to the second part 132. The fourth plate 1342 is used to connect the baffle element 1341 and the second part 132. Optionally, the baffle element 1341 is made of rubber. By setting the baffle element 1341, on the one hand, most of the coal falling from the first discharge end 112 can be gathered to the second feed end 1212; on the other hand, it can also buffer the coal.

[0082] Optionally, the fourth plate 1342 and the rotating ring 1321 of the second part 132 are detachably connected via a second connector. Optionally, the stop assembly 134 also includes a second washer, and the second connector passes through the second washer, the fourth plate 1342, and the second part 132. By providing the second washer, frictional damage to the working surface is reduced, and service life is improved. Optionally, the second connector is a second bolt.

[0083] Optionally, the stop 1341 may be bent at a certain angle.

[0084] In one embodiment of the invention, such as Figure 1 , Figure 4 and Figure 5 As shown, the guiding rolling device 150 includes a rolling frame 151, a vertical roller 1521, and a horizontal roller 1531. Specifically, the rolling frame 151 is rotatably connected to the second discharge end 1232 of the second conveyor 120 via a second pin 154. Optionally, the second conveyor 120 includes a head frame 1211, an intermediate frame 1221, and a tail frame 1231 connected in sequence. The end of the tail frame 1231 away from the intermediate frame 1221 is the second discharge end 1232. The rolling frame 151 and the tail frame 1231 are rotatably connected via the second pin 154. The second conveyor 120 can rotate up and down relative to the rolling frame 151 about the axis of the second pin 154.

[0085] Further, the vertical roller 1521 is rotatably mounted on the rolling frame 151. The vertical roller 1521 can rotate relative to the rolling frame 151. Optionally, there are multiple vertical rollers 1521. Further, the guide rail 140 has a groove 141. The circumferential sidewall of the vertical roller 1521 abuts against the groove wall of the groove 141. Further, the horizontal roller 1531 is rotatably mounted on the rolling frame 151. The horizontal roller 1531 can rotate relative to the rolling frame 151. Optionally, there are multiple horizontal rollers 1531. The centerline of the horizontal roller 1531 is perpendicular to the centerline of the vertical roller 1521. The circumferential sidewall of the horizontal roller 1531 abuts against the groove wall of the groove 141. By providing the horizontal roller 1531 and the vertical roller 1521, a sliding connection between the rolling frame 151 and the guide rail 140 can be achieved.

[0086] Furthermore, such as Figure 4 and Figure 5 As shown, the guide rolling device 150 also includes a first support shaft 1522 and a first copper sleeve 1524. Specifically, the first support shaft 1522 passes through the rolling frame 151. The first support shaft 1522 is fixed relative to the rolling frame 151. Optionally, as shown... Figure 4 and Figure 5As shown, the rolling frame 151 has a first mounting hole 1511, and one end of the first support shaft 1522 passes through the first mounting hole 1511. The rolling frame 151 also has a first limiting groove 1512, and the first limiting groove 1512 communicates with the first mounting hole 1511. The guiding rolling device 150 also includes a limiting plate 155. The limiting plate 155 is disposed in the first limiting groove 1512, and the limiting plate 155 is connected to the first support shaft 1522 through a third connecting member 156. Optionally, the third connecting member 156 is a bolt or screw.

[0087] Further, a first copper sleeve 1524 is fitted onto the first support shaft 1522, and the vertical roller 1521 is fitted onto the first copper sleeve 1524. The vertical roller 1521 rotates relative to the first support shaft 1522 via the first copper sleeve 1524. The first copper sleeve 1524 has good wear resistance, and by setting the first copper sleeve 1524, relative rotation between the vertical roller 1521 and the first support shaft 1522 can be achieved. Optionally, the number of first copper sleeves 1524 can be at least one. Optionally, the vertical roller 1521 is rotatably connected to the first support shaft 1522 via a bearing.

[0088] Furthermore, such as Figure 5 As shown, the guide rolling device 150 also includes a first retaining spring 1525. Specifically, one end of the first support shaft 1522 passes through the rolling frame 151, and the other end of the first support shaft 1522 is provided with a first retaining groove 1523. The first retaining spring 1525 is disposed in the first retaining groove 1523. The vertical roller 1521 is disposed between the first retaining spring 1525 and the rolling frame 151. By providing the first retaining groove 1523 and the first retaining spring 1525, the vertical roller 1521 can be axially limited to prevent it from detaching from the first support shaft 1522.

[0089] Furthermore, such as Figure 5 As shown, the guide rolling device 150 also includes a first thrust washer 1526. Specifically, the first thrust washer 1526 is sleeved on the first support shaft 1522. The number of first thrust washers 1526 is at least two, that is, there can be two or more first thrust washers 1526. At least one first thrust washer 1526 is provided on one side of the vertical roller 1521, and at least one first thrust washer 1526 is provided on the other side of the vertical roller 1521. At least one first thrust washer 1526 is provided on each side of the vertical roller 1521. By providing the first thrust washer 1526, the vertical roller 1521 can be axially limited.

[0090] In one embodiment of the invention, such as Figure 5As shown, the guide rolling device 150 further includes a second support shaft 1532 and a second copper sleeve 1534. Specifically, the second support shaft 1532 passes through the rolling frame 151. The second support shaft 1532 is fixed relative to the rolling frame 151. Optionally, the rolling frame 151 is provided with a second mounting hole, and one end of the second support shaft 1532 passes through the second mounting hole. Further, the second copper sleeve 1534 is sleeved on the second support shaft 1532, and the horizontal roller 1531 is sleeved on the second copper sleeve 1534. The horizontal roller 1531 rotates relative to the second support shaft 1532 through the second copper sleeve 1534. The second copper sleeve 1534 has good wear resistance, and by setting the second copper sleeve 1534, relative rotation between the horizontal roller 1531 and the second support shaft 1532 can be realized. Optionally, the horizontal roller 1531 is rotatably connected to the second support shaft 1532 through a bearing.

[0091] Furthermore, such as Figure 5 As shown, the guide rolling device 150 also includes a second retaining spring 1535. Specifically, one end of the second support shaft 1532 passes through the rolling frame 151, and the other end of the second support shaft 1532 is provided with a second retaining groove 1533. The second retaining spring 1535 is disposed in the second retaining groove 1533. The horizontal roller 1531 is disposed between the second retaining spring 1535 and the rolling frame 151. By providing the second retaining groove 1533 and the second retaining spring 1535, the horizontal roller 1531 can be axially limited to prevent it from disengaging from the second support shaft 1532.

[0092] Furthermore, such as Figure 5 As shown, the guide rolling device 150 also includes a second thrust washer 1536. Specifically, the second thrust washer 1536 is sleeved on the second support shaft 1532. The number of second thrust washers 1536 is at least two, that is, there can be two or more second thrust washers 1536. At least one second thrust washer 1536 is provided on one side of the horizontal roller 1531, and at least one second thrust washer 1536 is provided on the other side of the horizontal roller 1531. At least one second thrust washer 1536 is provided on each side of the horizontal roller 1531. By providing the second thrust washer 1536, the horizontal roller 1531 can be axially limited.

[0093] In one embodiment of the invention, such as Figure 1 and Figure 6As shown, the second conveyor 120 includes a head frame 1211, an intermediate frame 1221, and a tail frame 1231. Specifically, one end of the head frame 1211 is the second feed end 1212. The head frame 1211 of the second conveyor 120 is rotatably connected to the first part 131 of the steering connection device 130 via a first pin 135. Further, the intermediate frame 1221 is connected to the other end of the head frame 1211. One end of the tail frame 1231 is connected to the intermediate frame 1221, and the other end of the tail frame 1231 is the second discharge end 1232. The tail frame 1231 of the second conveyor 120 is rotatably connected to the rolling frame 151 of the guide rolling device 150 via a second pin 154. Optionally, the number of intermediate frames 1221 is at least one, that is, there can be one, two or more intermediate frames 1221. Taking into account the overall length of the second transport aircraft 120, the space occupied, the cost and other factors, the intermediate frames 1221 can be flexibly set according to actual needs.

[0094] Optionally, such as Figure 6 As shown, the second transport aircraft 120 also includes a fifth plate 125. The nose frame 1211 and the intermediate frame 1221 are connected by the fifth plate 125. The fifth plate 125 is a connecting plate. There are at least two fifth plates 125, with at least one fifth plate 125 located on one side of the nose frame 1211 and at least one fifth plate 125 located on the other side of the nose frame 1211.

[0095] Optionally, such as Figure 6 As shown, the second transport 120 also includes a sixth plate 126. Two adjacent intermediate frames 1221 are detachably connected via the sixth plate 126, allowing staff to easily add or remove intermediate frames 1221. Optionally, the sixth plate 126 is connected to the intermediate frames 1221 via a third connector. Optionally, the third connector is a third pin.

[0096] Furthermore, such as Figure 1 and Figure 6As shown, the second conveyor 120 also includes a guide roller 1213, a drive roller 1233, and a belt 124. Specifically, the guide roller 1213 is rotatably mounted on the head frame 1211. The guide roller 1213 can rotate relative to the head frame 1211. Further, the drive roller 1233 is rotatably mounted on the tail frame 1231. The drive roller 1233 can rotate relative to the tail frame 1231. Further, the belt 124 is sleeved on the guide roller 1213 and the drive roller 1233. The belt 124 is in frictional engagement with the guide roller 1213, and the belt 124 is in frictional engagement with the drive roller 1233. Optionally, the belt 124 has a pattern to increase the friction between the coal and the belt 124. The drive roller 1233 is the driving roller, used to connect the driving components; the guide roller 1213 is the driven roller, mainly serving a guiding function. Through the cooperation of the drive roller 1233 and the guide roller 1213, the belt 124 can transport the coal from the second feed end 1212 to the second discharge end 1232.

[0097] Furthermore, such as Figure 1 and Figure 6 As shown, the second conveyor 120 also includes multiple support rollers 1222. Specifically, the support rollers 1222 are rotatably mounted on the intermediate frame 1221. The support rollers 1222 are capable of rotating relative to the intermediate frame 1221. The support rollers 1222 are in frictional engagement with the belt 124. By providing the support rollers 1222, the belt 124 can be guided and supported.

[0098] Furthermore, such as Figure 1 and Figure 6 As shown, the second conveyor 120 also includes a buffer roller 1214. Specifically, the buffer roller 1214 is rotatably mounted on the head frame 1211. The buffer roller 1214 can rotate relative to the head frame 1211. The buffer roller 1214 is located below the first discharge end 112. By providing the buffer roller 1214, the coal falling from the first discharge end 112 can be buffered, so that the belt 124 of the second conveyor 120 can transport the coal more smoothly.

[0099] In one embodiment of the invention, such as Figure 7As shown, the tunneling machine 200 includes a shovel 210 and a transport device 100 as described in any of the above embodiments. One end of the first transporter 110 of the transport device 100 is a first discharge end 112, and the other end is a first feed end 111. The first feed end 111 of the first transporter 110 is connected to the shovel 210. When the tunneling machine 200 is working, the shovel 210 is responsible for collecting coal, and the first transporter 110, connected to the shovel 210, is responsible for transporting the coal from the first feed end 111 to the first discharge end 112. Then, a second transporter 120 can continue to transport coal to achieve continuous coal transport.

[0100] In this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0101] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0102] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0103] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A transport device, characterized in that, include: The first conveyor (110) has one end as the first discharge end (112). The second conveyor (120) has a second feed end (1212) at one end and a second discharge end (1232) at the other end. A steering connection device (130) is used to connect the first discharge end (112) and the second feed end (1212). The second conveyor (120) rotates up and down and / or swings left and right relative to the first conveyor (110) through the steering connection device (130). Guide rail (140) is located at the top of the tunnel; A guide rolling device (150) is used to connect the guide rail (140) and the second discharge end (1232), and the second conveyor (120) rotates up and down relative to the guide rail (140) through the guide rolling device (150); The steering connection device (130) includes: The first part (131) is rotatably connected to the second feed end (1212) via a first pin (135), and the second conveyor (120) rotates up and down relative to the first conveyor (110) around the axis of the first pin (135); The second part (132) is rotatably connected to the first part (131), and the second transport machine (120) swings left and right relative to the first transport machine (110) through the rotatable connection between the second part (132) and the first part (131); The first part (131) includes a fixed seat ring (1311), the second part (132) includes a rotating ring (1321), one side of the rotating ring (1321) abuts against one side of the fixed seat ring (1311), and the steering connection device (130) further includes: The third part (133) includes a first plate (1331) and a second plate (1332). One side of the second plate (1332) is connected to the connecting side of the first plate (1331). The first plate (1331) and the second plate (1332) form an L-shaped structure. The connecting side of the first plate (1331) abuts against the other side of the rotating ring (1321). The distance between the other side of the second plate (1332) and the connecting side is greater than the thickness of the rotating ring (1321). The other side of the second plate (1332) is connected to the fixed seat ring (1311).

2. The transport device according to claim 1, characterized in that, The first part (131) also includes: The third plate (1312) is connected to the fixed seat ring (1311), and the third plate (1312) is rotatably connected to the second feed end (1212) through the first pin (135).

3. The transport device according to claim 1, characterized in that, The center line of the fixed seat ring (1311) is parallel to the center line of the rotating ring (1321), and the second transport machine (120) swings left and right relative to the first transport machine (110) around the center line of the fixed seat ring (1311).

4. The transport device according to claim 1, characterized in that, The steering connection device (130) further includes: A material blocking assembly (134) is connected to the second part (132). The material blocking assembly (134) is located between the first discharge end (112) and the second feed end (1212). The first discharge end (112) is located above the second feed end (1212).

5. The transport device according to claim 4, characterized in that, The baffle assembly (134) includes: Material stop (1341); The fourth plate (1342) is connected to the stop (1341), and the fourth plate (1342) is connected to the second part (132).

6. The transport device according to any one of claims 1 to 5, characterized in that, The guide rail (140) has a groove (141), and the guide rolling device (150) includes: The rolling frame (151) is rotatably connected to the second discharge end (1232) via the second pin (154); A vertical roller (1521) is rotatably mounted on the rolling frame (151), and the circumferential sidewall of the vertical roller (1521) abuts against the groove wall of the slide groove (141). A horizontal roller (1531) is rotatably mounted on the rolling frame (151). The center line of the horizontal roller (1531) is perpendicular to the center line of the vertical roller (1521). The circumferential sidewall of the horizontal roller (1531) abuts against the groove wall of the slide (141).

7. The transport device according to claim 6, characterized in that, The guide rolling device (150) further includes: A first support shaft (1522) is inserted through the rolling frame (151), and the first support shaft (1522) is fixed relative to the rolling frame (151); The first copper sleeve (1524) is sleeved on the first support shaft (1522), and the vertical roller (1521) is sleeved on the first copper sleeve (1524). The vertical roller (1521) rotates relative to the first support shaft (1522) through the first copper sleeve (1524).

8. The transport device according to claim 7, characterized in that, One end of the first support shaft (1522) passes through the rolling frame (151), and the other end of the first support shaft (1522) is provided with a first slot (1523). The guide rolling device (150) further includes: The first retaining ring (1525) is disposed in the first retaining groove (1523), and the vertical roller (1521) is disposed between the first retaining ring (1525) and the rolling frame (151).

9. The transport device according to claim 8, characterized in that, The guide rolling device (150) further includes: At least two first thrust washers (1526) are sleeved on the first support shaft (1522), at least one first thrust washer (1526) is disposed on one side of the vertical roller (1521), and at least one first thrust washer (1526) is disposed on the other side of the vertical roller (1521).

10. The transport device according to claim 6, characterized in that, The guide rolling device (150) further includes: The second support shaft (1532) passes through the rolling frame (151), and the second support shaft (1532) is fixed relative to the rolling frame (151); The second copper sleeve (1534) is sleeved on the second support shaft (1532), and the horizontal roller (1531) is sleeved on the second copper sleeve (1534). The horizontal roller (1531) rotates relative to the second support shaft (1532) through the second copper sleeve (1534).

11. The transport device according to claim 10, characterized in that, One end of the second support shaft (1532) passes through the rolling frame (151), and the other end of the second support shaft (1532) is provided with a second slot (1533). The guide rolling device (150) further includes: The second retaining ring (1535) is disposed in the second retaining groove (1533), and the horizontal roller (1531) is disposed between the second retaining ring (1535) and the rolling frame (151).

12. The transport device according to claim 10, characterized in that, The guide rolling device (150) further includes: At least two second thrust washers (1536) are sleeved on the second support shaft (1532), at least one second thrust washer (1536) is provided on one side of the cross roller (1531), and at least one second thrust washer (1536) is provided on the other side of the cross roller (1531).

13. A tunneling machine, characterized in that, include: Shovel plate (210); According to any one of claims 1 to 12, the other end of the first conveyor (110) of the conveying device is a first feed end (111), and the first feed end (111) is connected to the shovel plate (210).

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