Air rail vehicle, air rail transportation system and transportation method

Abstract

The invention relates to the technical field of aerial rail loading and unloading, in particular to an aerial rail vehicle, an aerial rail transportation system and a transportation method.The aerial rail vehicle comprises a vehicle body, bottom doors arranged in pairs are arranged at the bottom of the vehicle body, each pair of bottom doors comprises a first bottom door and a second bottom door which are symmetrically arranged, and the first bottom door and the second bottom door are both hinged to the vehicle body; a bottom opening and closing mechanism is arranged between the first bottom door and the second bottom door and comprises a support and a main shaft, the support is connected with the bottom of the vehicle body, the main shaft is rotationally arranged on the support, a driving arm and a middle connecting piece are fixedly arranged on the main shaft, and a left connecting piece and a right connecting piece are hinged to the two ends of the middle connecting piece respectively. The left connecting piece is hinged to the first bottom door, the right connecting piece is hinged to the second bottom door, and when the bottom doors are closed, the left connecting piece, the middle connecting piece and the right connecting piece are collinear to form a mechanical dead point position. By arranging the bottom opening and closing mechanism and the sliding top door, the loading and unloading efficiency of the sky rail vehicle can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of loading and unloading an empty rail, and in particular to an empty rail vehicle, an empty rail transportation system and a transportation method. Background Art

[0002] In recent years, the application of coal transportation mode of sky rail system has gradually become widespread. Taking the Heishan Coal Mine Sky Rail as an example, the system adopts intelligent control monorail suspension transportation equipment, with a total length of 67.419 kilometers, a single vehicle rated load of 35 tons, and a design speed of 50 kilometers per hour. The system not only improves the efficiency and safety of coal transportation, but also reduces transportation costs and promotes the sustainable development of the coal industry.

[0003] In the coal transportation scenario, the sky rail system, as a major link, can effectively connect multiple modes of transportation. However, it requires multiple modes of transportation to cooperate with each other and carry out reasonable transportation organization planning to give full play to the system's transportation capacity. Among them, the efficiency of sky rail loading and unloading has a great impact on the overall transportation efficiency. It is necessary to design an efficient loading and unloading structure to improve the loading and unloading efficiency of the sky rail. Summary of the invention

[0004] The purpose of the present invention is to provide an aerial rail vehicle, an aerial rail transportation system and a transportation method to address the defects of the prior art. By arranging a bottom opening and closing mechanism and a sliding top door, the loading and unloading efficiency of the aerial rail vehicle can be improved.

[0005] In order to solve the above technical problems, in a first aspect, the present invention provides an aerial rail vehicle, comprising a vehicle body, wherein bottom doors arranged in pairs are arranged at the bottom of the vehicle body, each pair of bottom doors comprises a first bottom door and a second bottom door which are symmetrically arranged, the first bottom door is hinged to the vehicle body at one end close to the second bottom door, the second bottom door is hinged to the vehicle body at one end close to the first bottom door, a bottom opening and closing mechanism is arranged between the first bottom door and the second bottom door, the bottom opening and closing mechanism comprises a bracket and a main shaft, the bracket is connected to the bottom of the vehicle body, the main shaft is rotatably arranged on the bracket, a driving arm and a middle connecting piece are fixedly arranged on the main shaft, a left connecting piece and a right connecting piece are respectively hinged at two ends of the middle connecting piece, an end of the left connecting piece away from the middle connecting piece is hinged to the first bottom door, and an end of the right connecting piece away from the middle connecting piece is hinged to the second bottom door, when the first bottom door and the second bottom door are closed, the left connecting piece, the middle connecting piece and the right connecting piece are collinear to form a mechanical dead point, and the driving arm is used to drive the main shaft to rotate and break through the mechanical dead point.

[0006] The sky rail vehicle of the present invention arranges bottom doors symmetrically and arranges a bottom opening and closing mechanism between the two bottom doors, so that the bottom opening and closing mechanism can open and close the two bottom doors at the same time, thereby improving the opening and closing efficiency. The bottom opening and closing mechanism utilizes the principle that the left connecting piece, the middle connecting piece, and the right connecting piece are collinear to form a mechanical dead point, so that the bottom door can remain stable after closing.

[0007] In some embodiments, the driving arm includes a first driving arm and a second driving arm, and the first driving arm and the second driving arm are centrally symmetrically arranged at two ends of the main shaft.

[0008] The present invention provides a first driving arm and a second driving arm that are centrally symmetrical. When the first driving arm rotates upward counterclockwise to open the two bottom doors, the second driving arm rotates downward counterclockwise, so that the bottom doors can be closed by rotating the second driving arm upward clockwise. In addition, the first driving arm and the second driving arm are arranged at both ends of the main shaft, which can avoid affecting the unloading.

[0009] Furthermore, a roller is rotatably arranged at the end of the driving arm.

[0010] The present invention arranges a roller on the driving arm and drives the driving arm to rotate through the roller, thereby reducing the friction between the touch slope of the touch table and the driving arm and reducing the required driving force.

[0011] In some embodiments, two top doors are provided on the top of the vehicle body, the two top doors are symmetrically arranged along the axis of the vehicle body, the top doors are slidably connected to the vehicle body along an axis perpendicular to the vehicle body, and a driving mechanism is provided between the two top doors, the driving mechanism being used to drive the top doors to open.

[0012] The invention provides a top door slidably on the top of the vehicle body so that the top door can be opened automatically, thereby improving the loading efficiency.

[0013] In a second aspect, the present invention provides an aerial rail transportation system, comprising a touch mechanism, wherein the touch mechanism comprises two parallel longitudinal beams, tracks are arranged at both ends of the longitudinal beams, the tracks are arranged perpendicular to the longitudinal beams, the longitudinal beams are parallel to the axis of the vehicle body, a touch platform is slidably arranged on the longitudinal beams, a touch slope is arranged on the upper end surface of the touch platform, and the touch slopes of the touch platforms on the two longitudinal beams are respectively used to cooperate with a first driving arm and a second driving arm to realize the opening and closing of the bottom door.

[0014] The present invention arranges a track, and when the empty rail vehicle moves to the unloading area, the longitudinal beam can approach the driving arm of the empty rail vehicle along the track, and a touch platform is slidably arranged on the longitudinal beam, and the touch platform can slide along the longitudinal beam, so that the touch inclined surface on the touch platform pushes the first driving arm and the second driving arm, thereby realizing the automatic opening and closing of the bottom door.

[0015] Furthermore, the inclination directions of the touch slopes of the touch platforms on the two longitudinal beams are opposite.

[0016] The touch slopes of the touch platforms on the two longitudinal beams of the present invention have opposite inclination directions, and the touch slopes with opposite inclination directions can realize clockwise and counterclockwise rotation of the first driving arm and the second driving arm.

[0017] In some embodiments, a funnel is included, a telescopic chute is arranged at the bottom of the funnel, the telescopic chute includes a fixed chute and a sliding chute, the top of the fixed chute is fixedly connected to the bottom of the funnel, and the sliding chute is slidably connected to the fixed chute, so that after the ATR vehicle enters the loading range, the sliding chute can be placed on the vehicle body through the top door of the vehicle body for loading.

[0018] The present invention provides a sliding chute. When the empty rail vehicle enters the loading range, the sliding chute can be placed on the vehicle body through the top door of the vehicle body, thereby improving the automation of loading.

[0019] Furthermore, two funnels are symmetrically arranged, and the fixed chute is tiltedly arranged. The distance between the two funnels is greater than the width of the vehicle body, so that after the ATR vehicle enters the range between the two telescopic chutes, the sliding chute can be tilted and overlapped at the open position of the top door of the vehicle body.

[0020] The present invention symmetrically arranges two funnels and arranges the fixed chute obliquely, so that the two funnels can load materials into the vehicle body at the same time, which is beneficial to improving the loading efficiency.

[0021] Furthermore, an inner liner is arranged in the fixed chute, the upper end of the inner liner is sealed and connected to the inner wall of the fixed chute, the sliding chute is inserted from the lower end of the inner liner into the area between the inner liner and the inner wall of the fixed chute, and a hydraulic cylinder is arranged in the inner liner, and the hydraulic cylinder is used to drive the sliding chute to extend or retract.

[0022] The present invention arranges an inner liner in a fixed chute so that the sliding chute slides in the area between the inner liner and the inner wall of the fixed chute, thereby avoiding interference between the material and the sliding chute.

[0023] In some embodiments, it includes a buffer bin, a quantitative bin and a loading bin connected in sequence. A weighing device is provided in the buffer bin, and the weighing device is used to weigh the material. The funnel is rotatably connected to the loading bin so that the funnel can swing during the loading process.

[0024] The present invention rotatably connects the funnel with the charging bin so that the funnel can swing during the charging process to load all the materials in the funnel into the vehicle body. The swing of the funnel can be achieved by a hydraulic mechanism, which can be fixed on the outer wall of the charging bin.

[0025] In a third aspect, the present invention provides an aerial rail transportation method, comprising:

[0026] Start the feeding command, and the conveyor feeds the material into the buffer bin. When the material in the buffer bin reaches the preset weight, the feeding stops, and the material in the buffer bin enters the quantitative bin.

[0027] After the empty rail vehicle arrives at the designated loading position, the driving mechanism controls the top door to open, starts the unloading and loading command, and the quantitative bin discharges the material into the two hoppers. The telescopic chute under the two hoppers extends out of the sliding chute under the action of the hydraulic cylinder. The sliding chute is placed on the side beam on the top of the vehicle body and then discharges the material. At the same time, the hopper swings left and right. After the loading is completed, the driving mechanism controls the top door to close;

[0028] When the empty rail vehicle moves to the unloading area, the two longitudinal beams move to the positions below the main shaft and close to the two ends of the main shaft respectively. The touch platform of one of the longitudinal beams moves along the longitudinal beam and pushes the second driving arm. The second driving arm drives the main shaft to rotate, so that the left connecting piece, the middle connecting piece and the right connecting piece break through the mechanical dead point, thereby realizing the opening of the bottom door. When the unloading is completed, the touch platform on the other longitudinal beam moves along the longitudinal beam and pushes the first driving arm. The first driving arm drives the main shaft to rotate in the opposite direction. The main shaft drives the middle connecting piece and the left connecting piece and the right connecting piece to rotate, so that the bottom door is closed. At this time, the left connecting piece, the middle connecting piece and the right connecting piece return to the mechanical dead point.

[0029] The beneficial effects of the present invention are as follows: the present invention matches material loading and unloading with aerial rail transportation, so that the loading and unloading of aerial rail vehicles can be automated, the loading and unloading time is reduced, and the material transportation efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a side view of the vehicle body of the present invention;

[0031] Figure 2 It is a front view of the vehicle body of the present invention;

[0032] Figure 3 A bottom view of the vehicle body of the present invention;

[0033] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0034] Figure 5 It is a structural schematic diagram of the bottom opening and closing mechanism of the present invention;

[0035] Figure 6 This is a schematic diagram of the structure of the present invention when the bottom door is closed;

[0036] Figure 7 This is a schematic diagram of the structure of the present invention when the bottom door is open;

[0037] Figure 8 It is a charging structure diagram of the present invention;

[0038] Fig. 9 It is a structural schematic diagram of the funnel and the telescopic chute of the present invention;

[0039] Fig.10 It is a structural schematic diagram of the collision mechanism of the present invention.

[0040] Reference numerals: vehicle body 1; bottom door 11; first bottom door 111; second bottom door 112; bracket 12; main shaft 13; middle connecting member 14; first driving arm 15; second driving arm 16; left connecting member 17; right connecting member 18; top door 19; driving mechanism 191;

[0041] Touch mechanism 2; longitudinal beam 21; transverse beam 22; touch platform 23; touch inclined surface 24;

[0042] Funnel 3; fixed chute 4; sliding chute 5; buffer bin 6; quantitative bin 7; charging bin 8. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0044] like Figure 1 , 3 As shown, the present invention provides an empty rail vehicle, comprising a vehicle body 1, a bottom door 11 arranged in pairs is arranged at the bottom of the vehicle body 1, and two pairs of bottom doors 11 are arranged in total, such as Figure 4 , 5 As shown, each pair of bottom doors 11 includes a first bottom door 111 and a second bottom door 112 that are symmetrically arranged. The first bottom door 111 is hinged to the vehicle body 1 at one end close to the second bottom door 112, and the second bottom door 112 is hinged to the vehicle body 1 at one end close to the first bottom door 111. That is, Figure 5 In the embodiment, the top ends of the first bottom door 111 and the second bottom door 112 are hinged to the vehicle body 1, and a bottom opening and closing mechanism is arranged between the first bottom door 111 and the second bottom door 112, and the bottom opening and closing mechanism comprises a bracket 12 and a main shaft 13, the bracket 12 is connected to the bottom of the vehicle body 1 by welding, the main shaft 13 is rotatably arranged on the bracket 12 through a bearing, a driving arm and a middle connecting member 14 are fixedly arranged on the main shaft 13, a left connecting member 17 and a right connecting member 18 are hinged to the two ends of the middle connecting member 14 respectively, one end of the left connecting member 17 away from the middle connecting member 14 is hinged to the first bottom door 111, and one end of the right connecting member 18 away from the middle connecting member 14 is hinged to the second bottom door 112, when the first bottom door 111 and the second bottom door 112 are closed, the left connecting member 17, the middle connecting member 14 and the right connecting member 18 are in the same line to form a mechanical dead point, and the driving arm is used to drive the main shaft 13 to rotate and break through the mechanical dead point. There are two left connecting pieces 17, two middle connecting pieces 14 and two right connecting pieces 18.

[0045] It can be understood that when the first bottom door 111 and the second bottom door 112 are closed, that is, Figure 5In the shown state, the force applied by the first bottom door 111 to the left connecting member 17 passes through the rotation point of the middle connecting member 14, and the rotation point of the middle connecting member 14 is located on the axis of the main shaft 13. The force applied by the second bottom door 112 to the right connecting member 18 also passes through the rotation point of the middle connecting member 14. At this time, the structure forms a mechanical dead point. The bottom door 11 cannot be opened under the action of gravity and the gravity of the material. When external force acts on the driving arm, the main shaft 13 rotates to break through the mechanical dead point, and the first bottom door 111 and the second bottom door 112 are opened at the same time, which improves the opening and closing efficiency and can ensure the stability of the bottom door 11 after closing.

[0046] In some embodiments, the driving arm includes a first driving arm 15 and a second driving arm 16, and the first driving arm 15 and the second driving arm 16 are centrally symmetrically disposed at two ends of the main shaft 13. In addition, the length of the main shaft 13 is greater than the width of the bottom door 11.

[0047] The present invention provides a first driving arm 15 and a second driving arm 16 that are centrally symmetrical. When the first driving arm 15 rotates upward counterclockwise to open the two bottom doors 11, the second driving arm 16 rotates downward counterclockwise, so that the bottom doors 11 can be closed by rotating the second driving arm 16 upward clockwise. In addition, the first driving arm 15 and the second driving arm 16 are arranged at both ends of the main shaft 13, which can avoid affecting the unloading.

[0048] Furthermore, a roller is rotatably arranged at the end of the driving arm.

[0049] The present invention provides a roller on the driving arm, and the roller drives the driving arm to rotate, thereby reducing the friction between the contact inclined surface 24 of the contact platform 23 and the driving arm, and reducing the required driving force.

[0050] In some embodiments, Figure 2 As shown, two top doors 19 are arranged on the top of the vehicle body 1, and the two top doors 19 are symmetrically arranged along the axis of the vehicle body 1. Slide rails are arranged at both ends of the vehicle body 1 along the axial direction, and the slide rails are perpendicular to the axial direction of the vehicle body 1. The top doors 19 are slidably connected to the vehicle body 1 along the axial direction perpendicular to the axial direction of the vehicle body 1. A driving mechanism 191 is arranged between the two top doors 19, and the driving mechanism 191 is used to drive the top doors 19 to open. The driving mechanism 191 can adopt a cylinder.

[0051] The present invention provides a top door 19 that is slidably disposed on the top of the vehicle body 1, so that the top door 19 can be opened automatically, thereby improving loading efficiency.

[0052] Based on the above-mentioned empty rail vehicle, the present invention provides an empty rail transportation system, including a touch mechanism 2, the touch mechanism 2 is arranged at a height lower than the bottom of the vehicle body 1, such as Fig.10As shown, the touch mechanism 2 includes two longitudinal beams 21 arranged in parallel, tracks are arranged at both ends of the longitudinal beams 21, the tracks are arranged perpendicular to the longitudinal beams 21, the longitudinal beams 21 are parallel to the axis of the vehicle body 1, a touch platform 23 is slidably arranged on the longitudinal beams 21, and a touch slope 24 is arranged on the upper end surface of the touch platform 23. The touch slopes 24 of the touch platforms 23 on the two longitudinal beams 21 are respectively used to cooperate with the first driving arm 15 and the second driving arm 16 to realize the opening and closing of the bottom door 11. Among them, the movement of the longitudinal beams 21 and the touch platform 23 can be driven by a motor and in the form of gear transmission, that is, racks are arranged on the cross beam 22 and the longitudinal beam 21, and gears are arranged on the longitudinal beam 21 and the touch platform 23. The motor drives the gears to drive the gears on the longitudinal beam 21 and the touch platform 23 to move along the racks.

[0053] The present invention sets a track. When the empty rail vehicle moves to the unloading area, the longitudinal beam 21 can approach the driving arm of the empty rail vehicle along the track. The touch platform 23 is slidably set on the longitudinal beam 21. The touch platform 23 can slide along the longitudinal beam 21, so that the touch inclined surface 24 on the touch platform 23 pushes the first driving arm 15 and the second driving arm 16, thereby realizing the automatic opening and closing of the bottom door 11.

[0054] Furthermore, the touch slopes 24 of the touch platforms 23 on the two longitudinal beams 21 are inclined in opposite directions. The touch slopes 24 with opposite inclination directions can realize the clockwise rotation and counterclockwise rotation of the first driving arm 15 and the second driving arm 16.

[0055] like Figure 6 As shown, when the empty rail vehicle travels to the unloading area, the two longitudinal beams 21 move to the positions below the main shaft 13 and close to the two ends of the main shaft 13, and the touch platform 23 of one of the longitudinal beams 21 moves to the left along the longitudinal beam 21 to push the second driving arm 16, and the second driving arm 16 rotates clockwise, thereby driving the left connecting piece 17, the middle connecting piece 14, and the right connecting piece 18 to break through the mechanical dead point and rotate. Under the action of the bottom door 11 and the gravity of the material, the bottom door 11 is automatically fully opened, as shown in FIG. Figure 7 As shown, it is a fully opened state. At this time, the first driving arm 15 has rotated to a position close to the bottom, pushing the touch platform 23 of the second driving arm 16 to move to a position away from the vehicle body 1. The touch platform 23 of the other longitudinal beam 21 moves to the right along the longitudinal beam 21 to push the first driving arm 15. The first driving arm 15 rotates counterclockwise, thereby driving the left connecting member 17, the middle connecting member 14, and the right connecting member 18 to rotate until the left connecting member 17, the middle connecting member 14, and the right connecting member 18 rotate to a colinear state. At this time, the force applied by the first bottom door 111 to the left connecting member 17 passes through the rotation point of the middle connecting member 14, and the force applied by the second bottom door 112 to the right connecting member 18 also passes through the rotation point of the middle connecting member 14. At this time, the structure is in a mechanical dead point again, and the bottom door 11 is closed.

[0056] In some embodiments, Fig. 9 As shown, it includes a funnel 3, a telescopic chute is arranged at the bottom of the funnel 3, the telescopic chute includes a fixed chute 4 and a sliding chute 5, the top of the fixed chute 4 is fixedly connected to the bottom of the funnel 3, and the sliding chute 5 is slidably connected to the fixed chute 4, so that after the empty rail vehicle enters the loading range, the sliding chute 5 can be placed on the vehicle body 1 through the top door 19 of the vehicle body 1 for loading.

[0057] The present invention provides a sliding chute 5. When the empty rail vehicle enters the loading range, the sliding chute 5 can be placed on the vehicle body 1 through the top door 19 of the vehicle body 1, thereby improving the automation of loading.

[0058] Furthermore, two funnels 3 are symmetrically arranged, and the fixed chute 4 is tiltedly arranged. The distance between the two funnels 3 is greater than the width of the vehicle body 1, so that after the empty rail vehicle enters the range between the two telescopic chutes, the sliding chute 5 can be tilted and overlapped at the open position of the top door 19 of the vehicle body 1.

[0059] The present invention symmetrically arranges two funnels 3 and tilts the fixed chute 4 so that the two funnels 3 can simultaneously load materials into the vehicle body 1, which is beneficial to improving the loading efficiency.

[0060] Furthermore, an inner shell is arranged in the fixed chute 4, and the upper end of the inner shell is sealed and connected to the inner wall of the fixed chute 4. The sliding chute 5 is inserted from the lower end of the inner shell into the area between the inner shell and the inner wall of the fixed chute 4. A hydraulic cylinder is arranged in the inner shell, and the hydraulic cylinder is used to drive the sliding chute 5 to extend or retract.

[0061] In the present invention, an inner liner is arranged in the fixed chute 4 so that the sliding chute 5 slides in the area between the inner liner and the inner wall of the fixed chute 4, thereby avoiding interference between the material and the sliding chute 5.

[0062] In some embodiments, Fig.10 As shown, it includes a buffer bin 6, a quantitative bin 7 and a charging bin 8 connected in sequence. A weighing device is arranged in the buffer bin 6, and the weighing device is used to weigh the material. The funnel 3 is rotatably connected with the charging bin 8, so that the funnel 3 can swing during the charging process. The swing of the funnel 3 can be driven by a reduction motor.

[0063] The present invention rotatably connects the hopper 3 to the charging bin 8 so that the hopper 3 can swing during the charging process to load all the materials in the hopper 3 into the vehicle body 1. The swing of the hopper 3 can be achieved by a hydraulic mechanism, which can be fixed on the outer wall of the charging bin 8.

[0064] Based on the above-mentioned sky rail transportation system, the present invention provides a sky rail transportation method, comprising:

[0065] Start the feeding instruction, and the conveyor feeds the material into the buffer bin 6. When the material in the buffer bin 6 reaches the preset weight, the feeding stops, and the material in the buffer bin 6 enters the quantitative bin 7;

[0066] After the empty rail vehicle arrives at the designated loading position, the driving mechanism 191 controls the top door 19 to open, starts the unloading and loading instruction, and the quantitative bin 7 discharges the material to the two funnels 3. The telescopic chute under the two funnels 3 extends the sliding chute 5 under the action of the hydraulic cylinder. The sliding chute 5 is placed on the side beam on the top of the vehicle body 1 to discharge the material. At the same time, the funnel 3 swings left and right. After the loading is completed, the driving mechanism 191 controls the top door 19 to close;

[0067] When the empty rail vehicle moves to the unloading area, the two longitudinal beams 21 move to the positions below the main shaft 13 and close to the two ends of the main shaft 13 respectively. The touch platform 23 of one of the longitudinal beams 21 moves along the longitudinal beam 21 to push the second driving arm 16. The second driving arm 16 drives the main shaft 13 to rotate, so that the left connecting member 17, the middle connecting member 14, and the right connecting member 18 break through the mechanical dead point, thereby realizing the opening of the bottom door 11. When the unloading is completed, the touch platform 23 on the other longitudinal beam 21 moves along the longitudinal beam 21 to push the first driving arm 15. The first driving arm 15 drives the main shaft 13 to rotate in the opposite direction. The main shaft 13 drives the middle connecting member 14 and the left connecting member 17 and the right connecting member 18 to rotate, so that the bottom door 11 is closed. At this time, the left connecting member 17, the middle connecting member 14, and the right connecting member 18 return to the mechanical dead point.

[0068] The present invention matches material loading and unloading with air rail transportation, so that the loading and unloading of air rail vehicles can be automated, the loading and unloading time is reduced, and the material transportation efficiency is improved.

[0069] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An empty rail vehicle, characterized in that: The invention comprises a vehicle body (1), wherein the bottom of the vehicle body (1) is provided with a pair of bottom doors (11), each pair of bottom doors (11) comprises a first bottom door (111) and a second bottom door (112) which are symmetrically arranged, wherein the first bottom door (111) is hinged to the vehicle body (1) at one end close to the second bottom door (112), and the second bottom door (112) is hinged to the vehicle body (1) at one end close to the first bottom door (111), and a bottom opening and closing mechanism is provided between the first bottom door (111) and the second bottom door (112), and the bottom opening and closing mechanism comprises a bracket (12) and a main shaft (13), wherein the bracket (12) is connected to the bottom of the vehicle body (1), and the main shaft (13) is rotatably provided on the bracket (12). A driving arm and a middle connecting member (14) are fixedly arranged on the main shaft (13); two ends of the middle connecting member (14) are respectively hinged with a left connecting member (17) and a right connecting member (18); one end of the left connecting member (17) away from the middle connecting member (14) is hinged to the first bottom door (111); one end of the right connecting member (18) away from the middle connecting member (14) is hinged to the second bottom door (112); when the first bottom door (111) and the second bottom door (112) are closed, the left connecting member (17), the middle connecting member (14) and the right connecting member (18) are in a collinear line to form a mechanical dead point; the driving arm is used to drive the main shaft (13) to rotate and break through the mechanical dead point.

2. The empty rail vehicle according to claim 1, characterized in that: The driving arm comprises a first driving arm (15) and a second driving arm (16), wherein the first driving arm (15) and the second driving arm (16) are centrally symmetrically arranged at two ends of a main shaft (13).

3. The empty rail vehicle according to claim 2, characterized in that: A roller is rotatably arranged at the end of the driving arm.

4. The empty rail vehicle according to claim 1, characterized in that: Two top doors (19) are arranged on the top of the vehicle body (1), the two top doors (19) are symmetrically arranged along the axis of the vehicle body (1), the top doors (19) are slidably connected to the vehicle body (1) along an axial direction perpendicular to the vehicle body (1), and a driving mechanism (191) is arranged between the two top doors (19), the driving mechanism (191) is used to drive the top door (19) to open.

5. An empty rail transportation system of an empty rail vehicle according to any one of claims 1 to 4, characterized in that: The invention comprises a touch mechanism (2), wherein the touch mechanism (2) comprises two longitudinal beams (21) arranged in parallel, tracks are arranged at both ends of the longitudinal beam (21), the tracks are arranged perpendicular to the longitudinal beam (21), the longitudinal beam (21) is parallel to the axis of the vehicle body (1), a touch platform (23) is slidably arranged on the longitudinal beam (21), a touch inclined surface (24) is arranged on the upper end surface of the touch platform (23), and the touch inclined surfaces (24) of the touch platforms (23) on the two longitudinal beams (21) are respectively used to cooperate with a first driving arm (15) and a second driving arm (16) to realize the opening and closing of the bottom door (11).

6. The sky rail transportation system according to claim 5, characterized in that: The inclination directions of the touch slopes (24) of the touch platforms (23) on the two longitudinal beams (21) are opposite.

7. The sky rail transportation system according to claim 5, characterized in that: The invention comprises a hopper (3), a telescopic chute is arranged at the bottom of the hopper (3), the telescopic chute comprises a fixed chute (4) and a sliding chute (5), the top of the fixed chute (4) is fixedly connected to the bottom of the hopper (3), and the sliding chute (5) is slidably connected to the fixed chute (4), so that after the empty rail vehicle enters the loading range, the sliding chute (5) can be placed on the vehicle body (1) through the top door (19) of the vehicle body (1) for loading.

8. The sky rail transportation system according to claim 7, characterized in that: Two funnels (3) are symmetrically arranged, and the fixed chute (4) is arranged obliquely. The distance between the two funnels (3) is greater than the width of the vehicle body (1), so that after the empty rail vehicle enters the range between the two telescopic chutes, the sliding chute (5) can be obliquely overlapped at the open position of the top door (19) of the vehicle body (1).

9. The sky rail transportation system according to claim 7, characterized in that: An inner liner is arranged in the fixed chute (4), the upper end of the inner liner is sealedly connected to the inner wall of the fixed chute (4), the sliding chute (5) is inserted from the lower end of the inner liner into the area between the inner liner and the inner wall of the fixed chute (4), and a hydraulic cylinder is arranged in the inner liner, and the hydraulic cylinder is used to drive the sliding chute (5) to extend or retract.

10. An empty rail transportation method of an empty rail transportation system according to any one of claims 7 to 9, characterized in that: include: Start the feeding instruction, and the conveyor feeds the material into the buffer bin (6). When the material in the buffer bin (6) reaches a preset weight, the feeding is stopped, and the material in the buffer bin (6) enters the quantitative bin (7); After the empty rail vehicle arrives at the designated loading position, the driving mechanism (191) controls the top door (19) to open, starts the unloading and loading instruction, and the quantitative bin (7) discharges the material to the two funnels (3). The telescopic chute below the two funnels (3) extends the sliding chute (5) under the action of the hydraulic cylinder. The sliding chute (5) is placed on the side beam on the top of the vehicle body (1) to discharge the material. At the same time, the funnel (3) swings left and right. After the loading is completed, the driving mechanism (191) controls the top door (19) to close; When the empty rail vehicle moves to the unloading area, the two longitudinal beams (21) respectively move to the positions below the main shaft (13) and close to the two ends of the main shaft (13), and the touch platform (23) of one of the longitudinal beams (21) moves along the longitudinal beam (21) to push the second driving arm (16), and the second driving arm (16) drives the main shaft (13) to rotate, so that the left connecting piece (17), the middle connecting piece (14), and the right connecting piece (18) break through the mechanical dead point, thereby realizing the opening of the bottom door (11). When unloading is completed, the touch platform (23) on the other longitudinal beam (21) moves along the longitudinal beam (21) to push the first driving arm (15), and the first driving arm (15) drives the main shaft (13) to rotate in the opposite direction, and the main shaft (13) drives the middle connecting piece (14) and the left connecting piece (17) and the right connecting piece (18) to rotate, so that the bottom door (11) is closed. At this time, the left connecting piece (17), the middle connecting piece (14) and the right connecting piece (18) return to the mechanical dead point position.

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