Automatic transferring and discharging rail car in tunnel

Abstract

The invention discloses an automatic transferring and discharging rail car in a tunnel. Comprising a frame, an upper track and a lower track which are spatially and vertically arranged on the frame, a tail platform which is connected to the frame and is positioned at the front end of the lower track, two lifting platforms which are respectively arranged at two ends of the upper track and the lower track, and a hoisting device, a collecting hopper and a material box which are respectively arranged at two ends of the upper track and the lower track. The upper track, the lower track and the tail platform are used for conveying material boxes supported on the upper track, the lower track and the tail platform in the length direction. The lifting platform is connected with the frame and is arranged in a space up-down lifting mode so as to communicate the upper track with the lower track. And the hoisting device is used for hoisting the material box between the ground and the tunnel. The aggregate bin is used for pulling the material box to enter and exit the aggregate bin for feeding and is used for temporarily storing the fed dry-mixed mortar. According to the rail car, the feeding efficiency can be greatly improved, the conveying amount of continuous feeding is large, manual feeding is not needed, dust pollution can be greatly reduced, and damage to the surrounding environment and human health is not likely to be caused.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction devices, and in particular to an automatic transport and unloading rail vehicle in a tunnel. Background Art

[0002] Shotcrete is the most widely used support form in underground mines. The shotcrete support process includes dry shotcrete and wet shotcrete. The dry shotcrete process is to transport the raw materials used for shotcrete to the underground operation site, mix the dry shotcrete materials by manual or semi-mechanical mixing, and then use a dry shotcrete machine to spray to the sprayed surface. The addition of water is completed at the spray gun at the end of the dry shotcrete machine. The dry shotcrete process has many disadvantages such as low production capacity, high labor intensity, large rebound during the dry shotcrete process, high dust concentration, poor underground working environment, and low strength of dry shotcrete. Wet shotcrete is to prepare cement, water, sand, gravel, admixtures, fibers and other materials into a fluid concrete slurry according to a certain mix ratio at a concrete mixing station, and transport it to the site by concrete slurry transportation equipment, and pump the concrete slurry to the sprayed surface by a wet shotcrete machine or a wet shotcrete trolley. Compared with the dry shotcrete process, the wet shotcrete process has many advantages such as high degree of construction mechanization, high work efficiency, less rebound, good working environment, superior mechanical properties of shotcrete, and significant overall economic and social benefits.

[0003] For convenience and practicality, wet shotcrete is usually prepared by dry mixing outside the tunnel, then transported to the concrete mixing station inside the tunnel for secondary slurrying, and then directly enters the pumping system and is sprayed to the working surface by the spraying device. Due to the narrow space inside the tunnel, the transportation and loading process of the concrete mixing station becomes particularly inconvenient, and the loading process of powder materials such as cement may even cause a lot of dust pollution.

[0004] In the prior art, materials are mostly transported by a transfer vehicle in the tunnel, and then manually loaded. For example, patent CN 209776425U is a tunnel construction transfer flat car, which has too little material transport capacity and low efficiency, and there is no shelter around when loading, which is easy to cause material scattering, causing harm to the environment and human health; patent CN 116001828A is a tunnel construction transfer vehicle, which also has too little material transport capacity and low efficiency, and the materials are exposed to the air during transportation, which is easy to cause dust pollution; patent CN116446240A is a construction concrete unloading device, which also has too little material transport capacity and low efficiency, and does not include a loading device, causing difficulty in loading; when loading manually, not only is the efficiency low, but also because the powder is exposed to the air, it will cause dust pollution, causing great harm to human health. Summary of the invention

[0005] The present invention provides an automatic transport and unloading rail vehicle in a tunnel to solve the technical problems of existing transport and unloading methods, such as being unsuitable for tunnels with narrow internal space, too little material transported, low loading efficiency, easy pollution to the surrounding environment during loading, and harm to the health of loading personnel.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A rail vehicle for automatic material transfer and unloading in a tunnel comprises: a frame extending along the length direction of the tunnel, an upper track and a lower track arranged vertically on the frame, a tail platform connected to the frame and located at the front end of the lower track, two lifting platforms respectively arranged at both ends of the length direction of the upper track and the lower track, a lifting device and a collecting hopper respectively arranged at both ends of the length direction of the upper track and the lower track, and a material box for containing and transferring dry-mixed mortar; the upper track, the lower track and the tail platform are used to transport the material box supported thereon respectively along their length directions; the lifting platform is connected to the frame and is arranged to be lifted and lowered in space so as to connect the upper track and the lower track; the lifting device is used to lift the material box between the ground and the tunnel; the collecting hopper is used to pull the material box in and out to load materials therein, and is used to temporarily store the loaded dry-mixed mortar.

[0008] Furthermore, the tail platform includes a base extending along the length direction of the frame, two first guide rails supported on both sides in the width direction of the base and extending along the length direction of the base, a plurality of rollers on the two first guide rails on both sides which are arranged in sequence and spaced apart along the length direction of the first guide rails and supported on both ends for rotation, and a first chain driving mechanism for driving the plurality of rollers to rotate; the first chain driving mechanism is connected to the frame, and the driving ends are respectively connected to each roller to drive the rollers to rotate and thereby move the material box supported on the rollers along the lower track.

[0009] Furthermore, the lifting device includes a second guide rail vertically connected to the frame, a moving device connected to the second guide rail for sliding up and down, a lifting device connected to the moving device and an electric control cabinet; the moving device is connected to the electric control cabinet to slide up and down on the second guide rail; the lifting device is used to lift the material box up and down between the ground and the tunnel.

[0010] Furthermore, the moving device includes a mounting frame, two rows of rollers connected to one side of the mounting frame and relatively spaced and rotatably arranged, and a moving motor connected to one of the rollers; the two rows of rollers are respectively mounted in the guide rail grooves of the second guide rail; the moving motor is connected to the mounting frame and electrically connected to the electrical control cabinet to drive the connected rollers to rotate and thereby cause the moving device to slide up and down along the guide rail grooves of the second guide rail.

[0011] Furthermore, the lifting device includes a cable winch and a lifting motor connected to the mounting frame, and a hook for hooking the material box; the driving end of the lifting motor is connected to the cable winch to drive the cable winch to rotate; the hook is fixed to the free end of the steel cable wound on the cable winch.

[0012] Furthermore, the lifting platform includes a vertical frame arranged between the upper track and the lower track, a support platform connected to the vertical frame for upward and downward sliding, and a second chain driving mechanism for driving the support platform to slide, the second chain driving mechanism includes: a driving motor connected to the top of the vertical frame, a rotating shaft rotatably installed on the top of the vertical frame, a plurality of sprockets fixedly installed on the outer circle of the rotating shaft at intervals in sequence, a plurality of transmission chains cooperatedly wound around each sprocket, and a counterweight block serving as a counterweight; the output end of the driving motor is connected to the rotating shaft to drive the rotating shaft to rotate; the first ends of the plurality of transmission chains are fixedly connected to the support platform, and the opposite second ends of the plurality of transmission chains are fixedly connected to the counterweight block.

[0013] Furthermore, the material box includes a hollow box-shaped box body, two relatively spaced slide rails connected to the top of the box body, and a support connected to one side of the box body; the box body is a self-unloading box whose bottom plate can be automatically opened for unloading.

[0014] Furthermore, the collecting hopper includes an upper hopper body and a lower hopper body which are arranged opposite to each other and connected, and a traction mechanism arranged in the upper hopper body; an inlet and outlet for the material box to enter and exit is opened on the side wall of the upper hopper body; the traction mechanism is connected to the top of the upper hopper body and is used to connect with the material box to pull the material box in and out of the upper hopper body.

[0015] Furthermore, the traction mechanism includes two supporting rails arranged on both sides along the in-and-out direction of the material box, a plurality of mounting shafts arranged in sequence and spaced apart along the length direction of the supporting rails and rotatably supported on the supporting rails on both sides at both ends, a third chain driving mechanism for driving the plurality of mounting shafts to rotate, and driving wheels fixed on the outer circles at both ends of the mounting shafts; the driving wheel is used to squeeze into the slide groove of the slide rail on the corresponding side of the top end of the box body under the action of external force, so as to rotate when the mounting shaft rotates and then pull the material box in and out of the collecting hopper through the friction between the mounting shaft and the slide groove.

[0016] Furthermore, the frame is arranged in a doorway shape; both sides of the frame are provided with an upper track and a lower track which are arranged in space up and down on the frame, a tail platform connected to the frame and located at the front end of the lower track, two lifting platforms which are arranged at both ends of the upper track and the lower track in the length direction, a lifting device and a collecting hopper which are arranged at both ends of the upper track and the lower track in the length direction, and a material box for containing and transporting dry mixed mortar.

[0017] The present invention has the following beneficial effects:

[0018] When the automatic transport and unloading rail vehicle in the tunnel of the present invention is working, the rear platform, the lifting device, the lifting platform, the lower track, the upper track and the collecting hopper cooperate with each other, so that the fully automatic continuous loading of the dry-mixed mortar can be realized, thereby greatly improving the loading efficiency, ensuring the continuous operation of the mixing unit, and improving the concrete preparation efficiency. The continuous loading has a large material transportation volume, which meets the large material demand for wet spraying concrete. The rail vehicle of the present invention is extended and arranged along the length direction of the tunnel, so that it can better adapt to tunnels with narrow spaces, making the transportation and loading process of the concrete mixing station simple. During the operation of the rail vehicle of the present invention, no manpower is required for loading, which greatly reduces the labor cost required for loading and reduces the risks brought by high-altitude operations. The dry-mixed mortar is transported in a closed material box and loaded in a closed environment in the collecting hopper. Therefore, the dry-mixed mortar will not be exposed to the air during the entire transport and unloading process, which greatly reduces dust pollution and is not easy to cause harm to the surrounding environment and human health.

[0019] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 This is a schematic diagram of the spatial structure of an automatic transport and unloading rail vehicle in a tunnel according to a preferred embodiment of the present invention;

[0022] Figure 2 yes Figure 1 Schematic diagram of part of the structure of the mid-tail platform;

[0023] Figure 3 yes Figure 2 Schematic diagram of the spatial structure of the middle roller;

[0024] Figure 4 yes Figure 1 Schematic diagram of the spatial structure of the lifting device;

[0025] Figure 5 yes Figure 1 Schematic diagram of the spatial structure of the middle lifting platform;

[0026] Figure 6 yes Figure 1 Schematic diagram of the spatial structure of the middle material box;

[0027] Figure 7 yes Figure 1 Schematic diagram of the spatial structure of the intermediate aggregate hopper.

[0028] Legend:

[0029] 1. Tail platform; 11. Base; 12. First guide rail; 13. Roller; 14. First chain drive mechanism; 2. Lifting device; 21. Second guide rail; 221. Cable winch; 222. Lifting motor; 223. Hook; 23. Electric control cabinet; 241. Mounting frame; 242. Roller; 243. Mobile motor; 3. Lifting platform; 31. Stand; 32. Support platform; 33. Second chain drive mechanism; 331. Drive motor; 33 2. Rotating shaft; 333. Sprocket; 334. Transmission chain; 335. Counterweight; 4. Lower track; 5. Upper track; 6. Frame; 7. Material box; 71. Slide rail; 72. Support; 73. Unloading door lock; 74. Box body; 9. Collecting hopper; 91. Lower hopper body; 92. Vibration motor; 931. Support rail; 932. Mounting shaft; 933. Third chain drive mechanism; 934. Driving wheel; 94. Upper hopper body; 10. Ventilation system support rollers. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0031] Reference Figure 1 The preferred embodiment of the present invention provides an automatic transport and unloading rail vehicle in a tunnel, comprising: a frame 6 extending along the length direction of the tunnel, an upper track 5 and a lower track 4 arranged vertically on the frame 6, a tail platform 1 connected to the frame 6 and located at the front end of the lower track 4, two lifting platforms 3 respectively arranged at both ends of the length direction of the upper track 5 and the lower track 4, a lifting device 2 and a collecting hopper 9 respectively arranged at both ends of the length direction of the upper track 5 and the lower track 4, and a material box 7 for containing and transporting dry-mixed mortar. The upper track 5, the lower track 4 and the tail platform 1 are used to transport the material box 7 supported thereon along their length directions respectively. The lifting platform 3 is connected to the frame 6 and is arranged to be lifted and lowered in space to connect the upper track 5 and the lower track 4. The lifting device 2 is used to lift the material box 7 between the ground and the tunnel. The collecting hopper 9 is used to pull the material box 7 in and out of it to load materials, and is used to temporarily store the loaded dry-mixed mortar.

[0032] When the rail car of the present invention is working, first, dry-mixed mortar is prepared by the dry-mixed mortar mixing station on the ground, and the prepared finished dry-mixed mortar is loaded into a special material box 7, and transported by a loading truck to the vicinity of the automatic transfer and unloading rail car of the present invention, and then the lifting device 2 is started to lift the material box 7 on the ground to the rear platform 1 of the rail car in the tunnel, and the material box 7 is moved to the lifting platform 3 at the rear of the lower track 4 under the action of the rear platform 1 (in other embodiments, the material box 7 can also be directly lifted to the lifting platform 3 under the action of the lifting device 2, and the rear platform 1 does not need to be set up at this time); at this time, the lifting platform 3 at the rear is located on the lower track 4, and when the material box 7 arrives on the lifting platform 3, the lifting platform 3 moves to lift the material box 7 to the upper track 5, and then the material box 7 is on the upper track 5, it continues to move along the upper track 5 toward the head of the rail car until it reaches the lifting platform 3 at the head of the rail car, and moves toward the collecting hopper 9 under the action of the lifting platform 3 until it is connected to the collecting hopper 9, and finally enters the interior of the collecting hopper 9 under the traction of the collecting hopper 9. At this time, the unloading door under the material box 7 is automatically opened, and the dry mixed mortar inside the material box 7 falls into the collecting hopper 9; after the unloading is completed, the empty material box 7 exits the collecting hopper 9 under the action of the collecting hopper 9 and reaches the lifting platform 3 at the head of the rail car, descends to the lower track 4 through the lifting platform 3 at the head, and moves along the lower track 4 to the rear of the rail car to the lifting platform 3 at the rear under the action of the lower track 4, and finally moves the empty material box 7 out of the rail car through the lifting device 2, thereby completing a working cycle.

[0033] When the automatic transport and unloading rail vehicle in the tunnel of the present invention is working, the rear platform 1, the lifting device 2, the lifting platform 3, the lower track 4, the upper track 5 and the collecting hopper 9 cooperate with each other to realize the fully automatic continuous loading of dry-mixed mortar, thereby greatly improving the loading efficiency, ensuring the continuous operation of the mixing unit, and improving the concrete preparation efficiency. The continuous loading has a large material transportation volume, which meets the large material demand for wet spraying concrete. The rail vehicle of the present invention is extended along the length direction of the tunnel, and can also better adapt to tunnels with narrow space, making the transportation and loading process of the concrete mixing station simple. During the operation of the rail vehicle of the present invention, no manpower is required for loading, which greatly reduces the labor cost required for loading and reduces the risks brought by high-altitude operations. The dry-mixed mortar is transported in a closed material box 7 and loaded in a closed environment in the collecting hopper 9, so that the dry-mixed mortar will not be exposed to the air during the entire transport and unloading process, which greatly reduces dust pollution and is not easy to cause harm to the surrounding environment and human health.

[0034] Alternatively, if Figure 2 and Figure 3As shown, the tail platform 1 includes a base 11 extending along the length direction of the frame 6, two first guide rails 12 supported on both sides of the width direction of the base 11 and extending along the length direction of the base 11, a plurality of rollers 13 arranged in sequence along the length direction of the first guide rails 12 and supported on the two first guide rails 12 on both sides for rotation at both ends, and a first chain driving mechanism 14 for driving the plurality of rollers 13 to rotate. The first chain driving mechanism 14 is connected to the frame 6, and the driving end is respectively connected to each roller 13 to drive the roller 13 to rotate and thus move the material box 7 supported on the roller 13 along the lower track 4. In this optional solution, the first chain driving mechanism 14 includes a driving motor connected to the frame 6, a driving sprocket fixedly mounted on the outer circle of the output shaft of the driving motor, a driven sprocket fixed on the outer circle of one end of each roller 13, and a chain wound around the driving sprocket and each driven sprocket. During operation, the driving motor is started to drive the driving sprocket to rotate, and the driving sprocket then drives each driven sprocket to rotate through the chain, thereby rotating the corresponding roller 13, so that the material box 7 supported thereon moves relative to the base 11. In other embodiments, the functions of the roller 13 and the first chain drive mechanism 14 can be replaced by an existing conventional continuous belt conveyor; the tail platform 1 can also be replaced by an existing conventional linear conveyor. In this optional solution, the tail platform 1 has a simple structure and is easy to process and prepare, and in the present invention, the structure of the upper track 5 and the lower track 4 are similar to that of the tail platform 1, which will not be repeated here.

[0035] Alternatively, if Figure 4 As shown, the lifting device 2 includes a second guide rail 21 vertically connected to the frame 6, a moving device connected to the second guide rail 21 for sliding up and down, a lifting device connected to the moving device, and an electric control cabinet 23. The moving device is connected to the electric control cabinet 23 to slide up and down on the second guide rail 21. The lifting device is used to lift the material box 7 up and down between the ground and the tunnel. During operation, when the material box 7 is transported to the vicinity of the rail car, the moving device starts to slide up and down along the second guide rail 21 to move the lifting device and the electric control cabinet 23 to a suitable position; then the lifting device starts to lift the material box 7 on the ground to the tail platform 1 of the rail car in the tunnel.

[0036] In this option, if Figure 4As shown, the moving device includes a mounting frame 241, two rows of rollers 242 connected to one side of the mounting frame 241 and arranged to rotate relative to each other, and a moving motor 243 connected to one of the rollers 242. The two rows of rollers 242 are respectively mounted in the guide rail grooves of the second guide rail 21. The moving motor 243 is connected to the mounting frame 241 and electrically connected to the electric control cabinet 23, so as to drive the connected rollers 242 to rotate and thus make the moving device slide up and down along the guide rail grooves of the second guide rail 21. When working, the moving motor 243 starts to drive the rollers 242 connected thereto to roll, and when the rollers 242 roll, the mounting frame 241 can be driven to slide up and down relative to the second guide rail 21, thereby driving the lifting device and the electric control cabinet 23 to slide up and down relative to the second guide rail 21. In this optional solution, the moving device has a simple structure and low preparation cost, and the overall sliding is smooth through the arrangement of multiple rows of rollers 242.

[0037] In this option, if Figure 4 As shown, the lifting device includes a cable winch 221 and a lifting motor 222 connected to a mounting frame 241, and a hook 223 for hooking the material box 7. The driving end of the lifting motor 222 is connected to the cable winch 221 to drive the cable winch 221 to rotate. The hook 223 is fixed to the free end of the steel cable wound on the cable winch 221. When working, the lifting motor 222 is started to drive the cable winch 221 to rotate, so that the wound steel cable is wound or released, and then the hook 223 is lifted or lowered accordingly, and the material box 7 is lifted by the hook 223. The lifting device has a simple structure and low preparation cost.

[0038] Alternatively, if Figure 5As shown, the lifting platform 3 includes a stand 31 disposed between the upper rail 5 and the lower rail 4, a support platform 32 slidably connected to the stand 31, and a second chain driving mechanism 33 for driving the support platform 32 to slide. The second chain driving mechanism 33 includes: a driving motor 331 connected to the top of the stand 31, a rotating shaft 332 rotatably mounted on the top of the stand 31, a plurality of sprocket wheels 333 fixedly mounted on the outer circle of the rotating shaft 332 at intervals in sequence, a plurality of transmission chains 334 matched and wound around each sprocket wheel 333, and a counterweight block 335 serving as a counterweight. The output end of the driving motor 331 is connected to the rotating shaft 332 to drive the rotating shaft 332 to rotate. The first ends of the plurality of transmission chains 334 are fixedly connected to the support platform 32, and the second ends of the plurality of transmission chains 334 are fixedly connected to the counterweight block 335. When working, the driving motor 331 is started, and then drives the rotating shaft 332 to rotate. When the rotating shaft 332 rotates, it drives the multiple sprockets 333 on it to rotate. When the sprockets 333 rotate, the multiple transmission chains 334 installed on it move, so that the counterweight block 335 and the support platform 32 set relatively are driven to move up and down in opposite directions through the movement of the transmission chain 334. In this optional solution, the structural setting of the support platform 32 is similar to that of the tail platform 1, and is used to make the material box 7 supported thereon slide into the connected upper track 5 or lower track 4. In this optional solution, the counterweight block 335 plays a balancing role, which is used to reduce the power of the driving motor 331 and reduce energy consumption.

[0039] Alternatively, if Figure 6 As shown, the material box 7 includes a hollow box body 74, two relatively spaced slide rails 71 connected to the top of the box body 74, and a support 72 connected to one side of the box body 74. The box body 74 is a self-unloading box whose bottom plate can be automatically opened for unloading. In this optional solution, the structure of the material box 7 is simple, and a discharge door lock 73 is installed on the box body 74 to automatically open the bottom plate of the box body 74. The discharge door lock 73 is an existing conventional structure.

[0040] Alternatively, if Figure 7As shown, the collecting hopper 9 includes an upper hopper body 94 and a lower hopper body 91 which are arranged opposite to each other and connected, and a traction mechanism arranged in the upper hopper body 94. An inlet and outlet for the feeding box 7 is provided on the side wall of the upper hopper body 94. The traction mechanism is connected to the top of the upper hopper body 94 and is used to connect with the material box 7 to pull the material box 7 in and out of the upper hopper body 94. During operation, the material box 7 enters the upper hopper body 94 through the inlet and outlet opened on the side wall of the upper hopper body 94 under the action of the lifting platform 3, and is connected to the traction mechanism, so that it completely enters the upper hopper body 94 under the traction of the traction mechanism. After entering the upper hopper body 94, the side wall of the material box 7 seals the inlet and outlet opened on the upper hopper body 94, and at the same time, the bottom plate of the material box 7 automatically opens to discharge the material. After the material is discharged, the empty material box 7 exits the upper hopper body 94 under the action of the traction mechanism, and the discharged dry mixed mortar falls into the lower hopper body 91 below. In this optional solution, the upper bucket body 94 and the lower bucket body 91 are connected by bolts, and a sealing gasket is placed in the middle to prevent dust leakage during material discharge; the bottom end of the lower bucket body 91 is also connected to a vibration motor 92 to prevent the dry-mixed mortar in the lower bucket body 91 from arching and clumping. Finally, the dry-mixed mortar is transported to the next mixing unit by a screw machine through the screw machine connection port below the lower bucket body 91.

[0041] In this option, if Figure 6 and Figure 7 As shown, the traction mechanism includes two support rails 931 arranged on both sides of the material box 7 in and out direction, a plurality of mounting shafts 932 arranged in sequence and spaced along the length direction of the support rails 931 and rotatably supported on the support rails 931 at both ends, a third chain driving mechanism 933 for driving the plurality of mounting shafts 932 to rotate, and a driving wheel 934 fixed on the outer circle of both ends of the mounting shaft 932. The driving wheel 934 is used to squeeze into the slide groove of the slide rail 71 on the corresponding side of the top end of the box body 74 under the action of external force, so as to rotate when the mounting shaft 932 rotates, and then pull the material box 7 in and out of the collecting hopper 9 through the friction between the mounting shaft 932 and the slide groove. In this optional solution, the setting of the third chain drive mechanism 933 is similar to that of the first chain drive mechanism 14. When working, the third chain drive mechanism 933 is started, thereby driving the multiple connected installation shafts 932 to rotate. When the installation shaft 932 rotates, it simultaneously drives the driving wheel 934 to rotate. When the driving wheel 934 rotates, it pulls the material box 7 in and out through the friction between it and the slide groove in the slide rail 71. The traction mechanism structure is simple and easy to process and prepare.

[0042] Alternatively, if Figure 1As shown, the frame 6 is arranged in a doorway shape. Both sides of the frame 6 are provided with an upper track 5 and a lower track 4 arranged in space on the frame 6, a tail platform 1 connected to the frame 6 and located at the front end of the lower track 4, two lifting platforms 3 arranged at both ends of the length direction of the upper track 5 and the lower track 4, a lifting device 2 and a collecting hopper 9 arranged at both ends of the length direction of the upper track 5 and the lower track 4, and a material box 7 for containing and transporting dry-mixed mortar. The rail car of the present invention is arranged in a doorway shape, and the same structural layout is performed on both sides, so that the loading speed and loading amount can be further improved, and the spraying requirements of wet spraying concrete can be better met.

[0043] Alternatively, if Figure 1 As shown, the rail vehicle of the present invention further comprises ventilation system supporting rollers 10 connected to the vehicle frame 6 for supporting ventilation duct components of the ventilation system.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tunnel automatic transfer and unloading rail vehicle, characterized in that: include: A vehicle frame (6) extending along the length direction of the tunnel, an upper track (5) and a lower track (4) arranged vertically on the vehicle frame (6), a tail platform (1) connected to the vehicle frame (6) and located at the front end of the lower track (4), two lifting platforms (3) respectively arranged at both ends of the upper track (5) and the lower track (4) in the length direction, a lifting device (2) and a collecting hopper (9) respectively arranged at both ends of the upper track (5) and the lower track (4) in the length direction, and a material box (7) for containing and transporting dry-mixed mortar; The upper track (5), the lower track (4) and the tail platform (1) are used to transport the material box (7) supported thereon along their length directions respectively; The lifting platform (3) is connected to the vehicle frame (6) and is arranged to be lifted up and down in space so as to connect the upper track (5) and the lower track (4); The lifting device (2) is used to lift the material box (7) between the ground and the tunnel; The collecting hopper (9) is used for pulling the material box (7) in and out to load the material therein, and for temporarily storing the loaded dry-mixed mortar.

2. The automatic transport and unloading rail vehicle in a tunnel according to claim 1 is characterized in that: The tail platform (1) comprises a base (11) extending along the length direction of the vehicle frame (6), two first guide rails (12) supported on both sides of the base (11) in the width direction and extending along the length direction of the base (11), a plurality of rollers (13) arranged in sequence and spaced apart along the length direction of the first guide rails (12) and supported on both sides for rotation at both ends, and a first chain driving mechanism (14) for driving the plurality of rollers (13) to rotate; The first chain driving mechanism (14) is connected to the vehicle frame (6), and the driving end is respectively connected to each roller (13) to drive the roller (13) to rotate and thereby move the material box (7) supported on the roller (13) along the lower track (4).

3. The automatic transport and unloading rail vehicle in a tunnel according to claim 1 is characterized in that: The lifting device (2) comprises a second guide rail (21) vertically connected to the vehicle frame (6), a moving device connected to the second guide rail (21) for sliding up and down movement, a lifting device connected to the moving device, and an electric control cabinet (23); The moving device is connected to the electric control cabinet (23) so as to slide up and down on the second guide rail (21); The lifting device is used to lift the material box (7) up and down between the ground and the tunnel.

4. The automatic transport and unloading rail vehicle in a tunnel according to claim 3 is characterized in that: The moving device comprises a mounting frame (241), two rows of rollers (242) connected to one side of the mounting frame (241) and arranged to rotate relative to each other at a distance, and a moving motor (243) connected to one of the rollers (242); Two rows of rollers (242) are respectively mounted in the guide rail grooves of the second guide rail (21); The moving motor (243) is connected to the mounting frame (241) and is electrically connected to the electric control cabinet to drive the connected roller (242) to rotate so as to make the moving device slide up and down along the guide rail groove of the second guide rail (21).

5. The automatic transport and unloading rail vehicle in a tunnel according to claim 4 is characterized in that: The lifting device comprises a steel cable winch (221) and a lifting motor (222) connected to a mounting frame (241), and a hook (223) for hooking a material box (7); The driving end of the lifting motor (222) is connected to the wire rope winch (221) to drive the wire rope winch (221) to rotate; The hook (223) is fixed to the free end of the steel cable wound on the steel cable winch (221).

6. The automatic transport and unloading rail vehicle in a tunnel according to claim 1, characterized in that: The lifting platform (3) comprises a stand (31) arranged between an upper track (5) and a lower track (4), a support platform (32) connected to the stand (31) for sliding up and down movement, and a second chain driving mechanism (33) for driving the support platform (32) to slide. The second chain driving mechanism (33) comprises: A driving motor (331) connected to the top of the stand (31), a rotating shaft (332) rotatably mounted on the top of the stand (31), a plurality of sprocket wheels (333) fixedly mounted on the outer circle of the rotating shaft (332) at intervals in sequence, a plurality of transmission chains (334) wound around the sprocket wheels (333), and a counterweight block (335) serving as a counterweight; The output end of the driving motor (331) is connected to the rotating shaft (332) to drive the rotating shaft (332) to rotate; The first ends of the plurality of transmission chains (334) are fixedly connected to the support platform (32), and the opposite second ends of the plurality of transmission chains (334) are fixedly connected to the counterweight block (335).

7. The automatic transport and unloading rail vehicle in a tunnel according to claim 1, characterized in that: The material box (7) comprises a hollow box-shaped box body (74), two slide rails (71) connected to the top of the box body (74) and arranged relatively spaced apart, and a support (72) connected to one side of the box body (74); The box body (74) is a self-unloading box whose bottom plate can be opened automatically for unloading.

8. The automatic transport and unloading rail vehicle in a tunnel according to claim 7, characterized in that: The collecting hopper (9) comprises an upper hopper body (94) and a lower hopper body (91) which are arranged opposite to each other and connected to each other, and a traction mechanism arranged in the upper hopper body (94); An inlet and outlet for the material supply box (7) are provided on the side wall of the upper bucket body (94); The traction mechanism is connected to the top end of the upper bucket body (94) and is used to be connected to the material box (7) so as to pull the material box (7) in and out of the upper bucket body (94).

9. The automatic transport and unloading rail vehicle in a tunnel according to claim 8, characterized in that: The traction mechanism comprises two support rails (931) arranged on both sides along the inlet and outlet direction of the material box (7), a plurality of mounting shafts (932) arranged in sequence and spaced apart along the length direction of the support rails (931) and rotatably supported at both ends on the support rails (931) on both sides, a third chain driving mechanism (933) for driving the plurality of mounting shafts (932) to rotate, and driving wheels (934) fixed on the outer circles at both ends of the mounting shafts (932); The driving wheel (934) is used to squeeze the material box (7) into the slide groove of the slide rail (71) on the corresponding side of the top end of the box body (74) under the action of external force, so as to rotate when the installation shaft (932) rotates and then pull the material box (7) in and out of the collecting hopper (9) through the friction between the slide groove.

10. The automatic transport and unloading rail vehicle in a tunnel according to claim 1, characterized in that: The vehicle frame (6) is arranged in a door opening shape; Both sides of the vehicle frame (6) are provided with an upper track (5) and a lower track (4) which are spatially arranged on the vehicle frame (6) in an upper and lower direction, a tail platform (1) which is connected to the vehicle frame (6) and is located at the front end of the lower track (4), two lifting platforms (3) which are respectively arranged at both ends of the upper track (5) and the lower track (4) in a length direction, a lifting device (2) and a collecting hopper (9) which are respectively arranged at both ends of the upper track (5) and the lower track (4) in a length direction, and a material box (7) for containing and transporting dry-mixed mortar.

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