Bulk cargo transport device and coal mining line

Abstract

The present application provides a bulk cargo transport device and a coal mining line, and relates to the technical field of coal mining, to solve the problem of low unloading efficiency. The bulk cargo transport device comprises a hopper, a flexible containing member and a first driving mechanism, the side wall of the hopper is provided with a side opening; the first driving mechanism is connected with the first end of the flexible containing member; the flexible containing member can be switched between a first state and a second state; when the flexible containing member is in the first state, the flexible containing member can block the side opening and cooperate with the inner wall of the hopper to contain the material; the flexible containing member can be driven by the first driving mechanism so that the second end of the flexible containing member located at the side wall can move downward to switch to the second state; when the flexible containing member is in the second state, the second end opens the side opening. It can improve the efficiency of discharging the material.

Description

Technical Field

[0001] This invention relates to the field of coal mining technology, and more specifically, to a bulk cargo transportation device and a coal mining line. Background Technology

[0002] Transport vehicles are a type of transportation tool used for transportation. They are divided into many types according to their functions. For coal mining transportation, small-sized transport vehicles with large carrying capacity and easy unloading are needed, which is beneficial for transportation in narrow waterways. Currently used coal transport vehicles are relatively troublesome to unload, and it is also inconvenient to tip over the transport vehicle bed. The operation is cumbersome, the weight is heavy, which seriously affects the transportation efficiency and consumes the physical strength of workers.

[0003] Some technical solutions for coal transport vehicles have also emerged in the prior art. For example, CN108163032A (publication date: June 15, 2018) discloses a coal transport vehicle, including a support structure and a loading device. The support structure includes a base and a transport vehicle frame. The transport vehicle frame is welded to the upper surface of the base. The loading device is movably installed inside the transport vehicle frame. The loading device includes a transport vehicle bed and a side door panel. One side of the transport vehicle bed is movably connected to the side door panel through a first hinge. A connector is welded to one end of the base. The upper ends of both sides of the transport vehicle frame are movably connected to the transport vehicle frame through a hook device. Spring buckles and inclined support plates are fixedly connected to the upper and lower parts of the side door panel and located on the outer surface of the transport vehicle bed, respectively. By installing a side door panel and spring buckle on one side of the transport truck bed, material can be unloaded from the side. This facilitates unloading while reducing the weight of the coal inside the truck bed, making it easier to tip the truck bed over and completely empty the coal. A support column, bearings, and hook device are used to connect the transport truck bed to the frame for secure fixing and to prevent the truck from tipping over during travel. This technical solution has a reasonable structure and the transport truck bed is easy to tip over. However, unloading is cumbersome, still requiring the entire transport truck bed to be tipped over, which is time-consuming and labor-intensive, thus limiting the effectiveness of this technical solution.

[0004] CN110406449A (November 5, 2019) discloses a coal transportation device for mines, including a base, a controller, and a transport hopper. The controller is mounted on the base. A first cylinder is fixedly mounted on the base, and the end of the first cylinder is hinged to the left end of the transport hopper. The right end of the transport hopper is hinged to the base. A vibration module is provided on the inner wall of the transport hopper. The vibration module includes a flexible cloth and a sliding shaft. Flexible cloth is provided on the three connected vertical surfaces and the bottom surface inside the transport hopper, and the flexible cloths are interconnected. A sliding shaft is provided at the bottom of the vertical surface on the left side of the transport hopper, and sliding grooves are provided on both sides of the bottom of the transport hopper. The flexible cloth is connected to the sliding shaft. The sliding shaft is installed in the sliding grooves by rollers on both sides. This solution uses the vibration module to clean the residual coal chunks and coal dust in the transport hopper out of the door, thereby cleaning the coal and improving the efficiency of coal unloading. The above technical solution solves the problems mentioned in the background art. However, the above technical solution still requires the truck bed to be raised at a large angle. Therefore, there is a need for a coal transportation device in mines that does not require the truck bed to be raised. Summary of the Invention

[0005] The first objective of this invention is to provide a bulk cargo transport device to solve the technical problem of low unloading efficiency in existing systems.

[0006] The bulk cargo transport device provided by the present invention includes a cargo hopper, a flexible containment member, and a first drive mechanism. The side wall of the cargo hopper is provided with a side opening. The first drive mechanism is connected to a first end of the flexible containment member. The flexible containment member can switch between a first state and a second state. When the flexible containment member is in the first state, it can block the side opening and cooperate with the inner wall of the cargo hopper to contain materials. The flexible containment member can be driven by the first drive mechanism so that the second end of the flexible containment member located on the side wall can move downward to switch to the second state. When the flexible containment member is in the second state, the second end opens the side opening.

[0007] The beneficial effects of the bulk cargo transportation device of the present invention are:

[0008] By connecting a flexible receiving component to a first driving mechanism, the first driving mechanism can move the flexible receiving component. This places the second end of the flexible receiving component at a higher position, allowing the side opening to be closed. The space above the flexible receiving component and the inner wall of the hopper can then form a receiving space to accommodate the material. When the second end of the flexible receiving component moves downwards, the side opening opens as the flexible receiving component switches from the first to the second state, allowing the material to be gradually discharged. Ultimately, material can be discharged from the hopper without lifting it, and material discharge can be achieved without a high-power or high-output mechanism, simplifying the structure of the bulk cargo transport device and improving the efficiency of material discharge.

[0009] In a preferred embodiment, the first driving mechanism includes a take-up roller, and the first end of the flexible container is fixedly connected to the take-up roller. When the take-up roller rotates, the local length of the flexible container in the hopper can change.

[0010] In a preferred embodiment, the bulk cargo transport device further includes a second drive mechanism; the first drive mechanism further includes a gear and a rack, the gear meshing with the rack; under the action of the second drive mechanism, the gear can roll relative to the rack.

[0011] In a preferred embodiment, the rack is an arc-shaped rack, and the rack is fixedly connected to the cargo bin; the second drive mechanism includes a swing member and a drive assembly, the swing member has a pivot end and a swing end, the gear is rotatably disposed at the swing end of the swing member, the swing member is pivotally connected to the cargo bin, and the drive assembly is drively connected to the swing member and configured to drive the swing member to swing relative to the cargo bin; the center of the arc-shaped rack is located at the pivot end.

[0012] In a preferred embodiment, the drive assembly includes a linear drive member pivotally connected to the cargo bin, and the other end of the linear drive member is pivotally connected between the pivot end and the swing end of the swing member.

[0013] In a preferred embodiment, the bulk cargo transport device further includes a reset mechanism, one end of which is fixedly disposed relative to the cargo hopper, and the other end of which is connected to the second end.

[0014] In a preferred embodiment, the reset mechanism includes a tension spring, one end of which is fixedly disposed relative to the cargo hopper, and the other end of which is connected to the second end.

[0015] In a preferred embodiment, the reset mechanism further includes a sliding connecting rod that connects the tension spring and the second end; a guide groove is provided on the hopper, the guide groove extends vertically, and the sliding connecting rod is slidably disposed in the guide groove.

[0016] In a preferred embodiment, the bulk cargo transport device further includes multiple support rods, which are disposed on the side of the flexible container facing away from the material, and the multiple support rods are arranged along the direction from the first end to the second end.

[0017] The second objective of this invention is to provide a coal mine excavation line to solve the technical problem of low unloading efficiency.

[0018] The coal mine excavation line provided by the present invention includes the above-mentioned bulk cargo transportation device.

[0019] By installing the aforementioned bulk cargo transportation device in the coal mine excavation line, the coal mine excavation line will have all the advantages of the aforementioned bulk cargo transportation device, which will not be elaborated here. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments or background art of the present invention, the drawings used in the description of the embodiments or background art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the bulk cargo transportation device provided in an embodiment of the present invention;

[0022] Figure 2 This is a cross-sectional view of a bulk cargo transport device provided in an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 10-Cargo bin; 11-Side opening; 12-Guide groove; 13-Spinning wheel;

[0025] 21-Flexible housing; 22-Take-up roller; 23-Support rod;

[0026] 31-Gear; 32-Rack; 33-Oscillating component; 34-Drive assembly;

[0027] 41-Tension spring; 42-Sliding connecting rod. Detailed Implementation

[0028] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0029] Example 1:

[0030] Figure 1 This is a schematic diagram of the structure of the bulk cargo transportation device provided in an embodiment of the present invention; Figure 2 This is a cross-sectional view of a bulk cargo transport device provided in an embodiment of the present invention. Figure 1 and Figure 2As shown, the bulk cargo transportation device provided in Embodiment 1 of the present invention includes a cargo hopper 10, a flexible receiving member 21, and a first driving mechanism. The side wall of the cargo hopper 10 is provided with a side opening 11. The first driving mechanism is connected to the first end of the flexible receiving member 21. The flexible receiving member 21 can switch between a first state and a second state. When the flexible receiving member 21 is in the first state, the flexible receiving member 21 can block the side opening 11 and the flexible receiving member 21 can cooperate with the inner wall of the cargo hopper 10 to accommodate materials. The flexible receiving member 21 can be driven by the first driving mechanism so that the second end of the flexible receiving member 21 located on the side wall can move downward to switch to the second state. When the flexible receiving member 21 is in the second state, the second end opens the side opening 11.

[0031] In this embodiment, the bulk cargo transport device can be a mine coal transport device used in the coal mining process. Of course, the bulk cargo transport device can also be used to transport other bulk cargoes, such as sand, gravel, mineral powder, grain, or soil.

[0032] Specifically, in this embodiment, the cargo hopper 10 can be fixedly installed on the vehicle body of the bulk cargo transport device. Further, the cargo hopper 10 can be formed by the vehicle body, i.e., a floor plate and side walls provided on the floor plate, thus constituting the cargo hopper 10. In this embodiment, the cargo hopper 10 is formed by the vehicle's floor plate and three side walls. The side without side walls is the side opening 11, through which materials can be discharged. Of course, in another implementation, a separate cargo hopper 10 can be installed on the body of a conventional flatbed truck.

[0033] The flexible housing 21 can be made of flexible fabric. Of course, the flexible fabric needs to be able to support the weight of the bulk materials inside. The parallel sidewalls on both sides of the flexible fabric and the flexible fabric together form an upwardly open housing space. Of course, when the flexible housing 21 is driven, the housing space can also open towards the side opening 11.

[0034] By connecting the flexible receiving member 21 to the first driving mechanism, the first driving mechanism can drive the flexible receiving member 21 to move. Thus, the second end of the flexible receiving member 21 is in a higher position, allowing the side opening 11 to be closed, and the space above the flexible receiving member 21 and the inner wall of the hopper 10 to form a receiving space to hold materials. When the second end of the flexible receiving member 21 moves downwards, it can open the side opening 11 when switching from the first state to the second state, allowing the materials to be gradually discharged. Ultimately, materials can be discharged from the hopper 10 without lifting it, and material discharge can be achieved without a high-power or high-output mechanism, simplifying the structure of the bulk cargo transport device and improving the efficiency of material discharge.

[0035] like Figure 1and Figure 2 As shown, preferably, the first drive mechanism includes a take-up roller 22, and the first end of the flexible container 21 is fixedly connected to the take-up roller 22. When the take-up roller 22 rotates, the local length of the flexible container 21 in the hopper 10 can change.

[0036] In this embodiment, the take-up roller 22 is disposed on the upper part of the side wall opposite to the side opening 11. Therefore, in the first state, the flexible accommodating member 21 forms the opposite side walls and bottom wall of the accommodating space. Specifically, in this embodiment, the connection point between the take-up roller 22 and the second end of the flexible accommodating member 21 is located at one end of the take-up roller 22 facing away from the side opening 11. When the take-up roller 22 rotates clockwise as shown in the figure, more of the flexible accommodating member 21 can be retracted, thereby causing the second end to move downward.

[0037] By rotating the take-up roller 22 to wind the flexible container 21, and considering the pressure exerted on the flexible container 21 by the weight of the material during discharge, the flexible container 21 can move along the lower edge of the receiving space. That is, the material presses the flexible container 21 downwards, so the take-up roller 22, by winding the flexible container 21, can drive the second end of the flexible container 21 downwards. The material gradually descends along the upper edge of the obstruction facing the opening. Since the material is not a regular, neatly arranged cube, it is affected by the natural angle of accumulation and slides downwards to be gradually discharged. By using the take-up roller 22 to wind the flexible container 21, the take-up roller 22 can be positioned further away from the side opening 11, thereby maximizing the space within the hopper 10 to accommodate more goods.

[0038] Of course, in another implementation, the flexible container 21 can be set only on the side where the side opening 11 is located, and the winding roller 22 starts to wind the flexible container 21. The second end of the flexible container 21, i.e. the upper end, descends and gradually discharges the material in the hopper 10.

[0039] In addition, to address the issue of materials not being able to be completely discharged due to their natural angle of repose, the bottom surface of the hopper 10 can be made into an inclined plane, with the angle between the inclined plane and the horizontal plane being greater than the natural angle of repose of the material.

[0040] like Figure 1 and Figure 2 As shown, preferably, the bulk cargo transport device further includes a second drive mechanism; the first drive mechanism further includes a gear 31 and a rack 32, with the gear 31 meshing with the rack 32; under the action of the second drive mechanism, the gear 31 can roll relative to the rack 32.

[0041] By setting the rack 32 to drive the gear 31 to rotate, the take-up roller 22 can be further driven to rotate. In particular, when the axis of the gear 31 also moves, the take-up roller 22 can be brought closer to the side opening 11, thereby making the angle between the unwound part of the flexible container 21 and the horizontal plane larger, which is more conducive to the rapid and thorough discharge of materials.

[0042] like Figure 1 and Figure 2 As shown, preferably, the rack 32 is an arc-shaped rack 32, which is fixedly connected to the hopper 10; the second drive mechanism includes a swing member 33 and a drive assembly 34. The swing member 33 has a pivot end and a swing end. The gear 31 is rotatably disposed at the swing end of the swing member 33. The swing member 33 is pivotally connected to the hopper 10. The drive assembly 34 is drively connected to the swing member 33 and configured to drive the swing member 33 to swing relative to the hopper 10; the center of the arc-shaped rack 32 is located at the pivot end.

[0043] In this embodiment, the pivot end is located at the lower part of the hopper 10, near the side opening 11. When the swing member 33 swings into place, the shortest part of the flexible container 21 can be pressed against the bottom wall of the hopper 10 by the material, so that as much material as possible can be discharged, so as to unload the material more thoroughly.

[0044] In this embodiment, the oscillating member 33 can be a swing arm, and further, the shape of the swing arm can be a straight rod or a curved rod, and the shape of the swing arm is not particularly limited. In another implementation, the oscillating member 33 can also be plate-shaped or other shapes. The gear 31 can be rotatably connected to the oscillating end of the oscillating member 33 by using a rotating roller as an intermediate shaft.

[0045] Specifically, the pivot end of the swing member 33 can be rotatably connected to the bottom of the hopper 10 via a pivot shaft. The pivot shaft can be rotatably connected to the hopper 10, while the swing member 33 is fixedly connected to the pivot shaft. Alternatively, the pivot shaft can be fixedly connected to the hopper 10, while the swing member 33 is movably connected to the pivot shaft.

[0046] By rotating gear 31 at the swing end of swing member 33 and pivotally connecting swing member 33 to hopper 10, gear 31 remains engaged with arc-shaped rack 32 during swing, ensuring continuous transmission. Furthermore, the swing of swing member 33 drives gear 31, increasing its rotation and increasing the length of flexible container 21 wound on take-up roller 22 while shortening the unwound length. This also allows for a larger angle between the unwound flexible container 21 and the horizontal plane when gear 31 finishes rotating, enabling more thorough and rapid discharge of material from the flexible container 21.

[0047] In another implementation, the rack 32 can also be a linear rack 32, in which the linear rack 32 moves while the gear 31 only rotates but its axis remains stationary; that is, the gear 31 only rotates on its own axis. For example, the rack 32 can be... Figure 2 The left sidewall shown can move up and down, or move horizontally above the hopper 10. The rotation of gear 31 can also drive the rotation of the take-up roller 22, thereby winding up the flexible container 21. Although the take-up roller 22 only rotates on its own axis and does not revolve around the sun, it can still wind the flexible container 21 into the following state, where the flexible container 21 is in a position where... Figure 2 The material is taut from the upper left corner to the lower right corner of the hopper 10, with the center direction as the reference, causing the material to slide down along the taut flexible receiving member 21 and be discharged from the hopper 10. Of course, in this case, the rack 32 can be driven by a linear motor, linear module, electric push rod, or a cylinder or hydraulic cylinder with the cylinder body fixed.

[0048] Alternatively, in another implementation, the rack 32 can be a straight rack 32, but the rack 32 is located on the upper edge of the side wall of the hopper 10, so that the gear 31 moves along the length of the rack 32. Starting from the first state of the flexible container 21, the rack 32 moves towards the side opening 11, thereby making the angle between the unwound part of the flexible container 21 and the horizontal plane larger, which is beneficial for quickly and thoroughly discharging the material.

[0049] like Figure 1 As shown, preferably, the drive assembly 34 includes a linear drive member pivotally connected to the hopper 10, and the other end of the linear drive member is pivotally connected between the pivot end and the swing end of the swing member 33.

[0050] In this embodiment, the linear drive can be a fluid pressure type working cylinder, more specifically, a pneumatic cylinder or a hydraulic cylinder. The tail of the cylinder body is pivotally connected to the hopper 10, and the piston rod is pivotally connected to the middle of the swing member 33. This embodiment uses a hydraulic cylinder. In other implementations, the linear drive can be a linear motor, a linear module, or an electric actuator.

[0051] By pivoting the linear drive to the hopper 10 and pivoting the other end of the linear drive to the swing member 33, the linear pivot can output a small stroke to drive the gear 31 to move a large distance, thereby realizing the rolling of the gear 31 on the rack 32, which in turn drives the flexible receiving member 21 to rewind, and makes the unwound part form a large slope.

[0052] like Figure 1 and Figure 2 As shown, preferably, the bulk cargo transport device further includes a reset mechanism, one end of which is fixedly disposed relative to the cargo hopper 10, and the other end of which is connected to the second end.

[0053] By setting a reset mechanism, the second end of the flexible accommodating member 21 can be driven by the reset mechanism in the first state to block the side opening 11 at a higher position.

[0054] like Figure 1 and Figure 2 As shown, preferably, the reset mechanism includes a tension spring 41, one end of which is fixedly disposed relative to the hopper 10, and the other end of which is connected to the second end.

[0055] In this embodiment, the upper end of the tension spring 41 is connected to a rod fixed to one end of the cargo hopper 10 at the side opening 11, while the lower end of the tension spring 41 is connected to the second end.

[0056] By providing a tension spring 41 with its two ends connected to the cargo hopper 10 and the second end respectively, the second end of the flexible container 21 can be pulled up in the first state so that the flexible container 21 can cover the side opening 11. Moreover, even if the side opening 11 is not covered, the portion of the flexible container 21 near the second end can remain in a stretched state and will not fall.

[0057] In another implementation, a compression spring can be used to push the second end of the flexible receiver 21 upward.

[0058] like Figure 1 and Figure 2 As shown, preferably, the reset mechanism further includes a sliding connecting rod 42, which connects the tension spring 41 and the second end; a guide groove 12 is provided on the hopper 10, which extends in the vertical direction, and the sliding connecting rod 42 is slidably disposed in the guide groove 12.

[0059] The sliding connecting rod 42 can be arranged in a direction perpendicular to the drawing, while the guide groove 12 is located in the area near the side opening 11 on the side wall of the hopper 10, penetrating the side wall of the hopper 10. Furthermore, the guide groove 12 can be located directly below the end of the rack 32 near the side opening 11. The sliding connecting rod 42 extends out of the side wall and connects to the lower end of the tension spring 41 located on the outer side of the side wall.

[0060] By providing a guide groove 12 extending vertically, the sliding connecting rod 42 can maintain a relatively close distance to the side opening 11 during its sliding motion within the guide groove 12. This allows the flexible container 21 and the hopper 10 to form a larger accommodating space to hold more material. Furthermore, by restricting the movement of the sliding connecting rod 42 through the guide groove 12, the horizontal position of the second end can be limited. Without this restriction, the second end of the flexible container 21 would gradually move away from the side opening 11 as the winding roller 22 winds around it. Consequently, when the maximum winding distance is reached, a large distance remains between the second end and the side opening 11, preventing the container from being completely emptied.

[0061] like Figure 1 and Figure 2 As shown, preferably, the bulk cargo transport device further includes multiple support rods 23, which are disposed on the side of the flexible container 21 facing away from the material, and the multiple support rods 23 are arranged in a direction from the first end to the second end.

[0062] Specifically, the support rod 23 can be sewn onto the back of the flexible container 21 or glued to the back of the flexible container 21.

[0063] By setting multiple support rods 23, the rigidity of the flexible container 21 can be improved. On the one hand, the gap between the two sides of the flexible container 21 and the side wall of the hopper 10 can be reduced, thus reducing the leakage of material from the container space to the bottom of the hopper 10. On the other hand, the flexible container 21 can be kept taut in its width direction, avoiding the flexible container 21 from being folded by the upper edge during the winding process, thereby extending the service life of the flexible container 21.

[0064] In addition, in this embodiment, the cargo box 10 is the vehicle body, and a set of movable wheels 13 can be provided at the bottom. The movable wheels 13 can be track wheels or rubber wheels.

[0065] The operating principle of this embodiment is as follows:

[0066] Taking the coal mining process as an example, the working principle of this bulk cargo transport device is described as follows:

[0067] During operation, coal is added to the hopper 10. Because the flexible container 21 and the side wall of the hopper 10 form a receiving space, and the flexible container 21 blocks the side opening 11, the coal is located within this space. Due to the action of the support rod 23, the flexible container 21 is supported in a direction perpendicular to the plane of the drawing, reducing the amount of coal spilling below it, thus achieving proper loading of the coal.

[0068] When the bulk cargo transport device reaches its designated position and needs to unload the coal, the hydraulic cylinder, acting as a linear drive component, extends, thereby driving the oscillating component 33 along... Figure 1 As shown, the swinging motion is clockwise. The swinging member 33 drives the gear 31 to move relative to the rack 32 through the take-up roller 22. The rolling of the gear 31 causes the take-up roller 22 to rotate and move towards the side opening 11.

[0069] As the unwound portion of the flexible housing 21 shortens, and the take-up roller 22 gradually moves towards... Figure 2 As the movement moves to the right, the area where the bottom of the flexible cloth is separated from the bottom of the hopper 10 increases. As a result, the weight of the coal is transferred to the take-up roller 22 and the sliding connecting rod 42 to share the load. As the downward force on the sliding connecting rod 42 gradually increases, the sliding connecting rod 42 overcomes the tension of the tension spring 41 and descends. The length of the tension spring 41 increases, causing the second end of the flexible connector in the side opening 11 to descend, thus reducing the interception height of the coal and allowing the coal to be discharged from the right side.

[0070] As the take-up roller 22 moves further and takes up its winding action, the length of the unwound portion of the flexible container 21 shortens, and the flexible container 21 also moves further to the right. When the take-up roller 22 has moved completely to the end of the rack 32 facing the side opening 11, the flexible container 21 wraps around the take-up roller 22, making the flexible container 21 vertical, thus emptying the coal from the surface of the flexible container 21 and completing the unloading operation.

[0071] Then, the hydraulic cylinder retracts, causing the swinging member 33 to rotate counterclockwise as shown in the figure. The gear 31 rolls in the opposite direction on the rack 32, and the take-up roller 22 also rotates counterclockwise, gradually releasing the flexible receiving member 21. The second end of the flexible receiving member 21 and the sliding connecting rod 42 move upward under the action of the tension spring 41 to close the side opening 11, facilitating the next loading.

[0072] Example 2:

[0073] Example 2 also provides a coal mine excavation line, including the aforementioned bulk cargo transportation device.

[0074] For example, a coal mine excavation line can be equipped with tracks, and bulk cargo conveying devices can travel on the tracks via their track wheels.

[0075] By installing the aforementioned bulk cargo transportation device in the coal mine excavation line, the coal mine excavation line will have all the advantages of the aforementioned bulk cargo transportation device, which will not be elaborated here.

[0076] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

[0077] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprising" or any other variations thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0078] In the above embodiments, descriptions of directions such as "up" and "down" are based on the accompanying drawings.

[0079] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention.

[0080] Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bulk cargo transport device, characterized in that, The device includes a hopper (10), a flexible container (21), and a first driving mechanism. The hopper (10) has a side opening (11) on its side wall. The first driving mechanism is connected to the first end of the flexible container (21). The flexible container (21) can switch between a first state and a second state. When the flexible container (21) is in the first state, it can block the side opening (11) and cooperate with the inner wall of the hopper (10) to accommodate materials. The flexible container (21) can be driven by the first driving mechanism so that the second end of the flexible container (21) located on the side wall can move downward to switch to the second state. When the flexible container (21) is in the second state, the second end opens the side opening (11). The first driving mechanism includes a take-up roller (22). The first end of the flexible container (21) is fixedly connected to the take-up roller (22). When the take-up roller (22) rotates, the first end of the flexible container (21) opens the side opening (11). The flexible container (21) has a variable length within the cargo bin (10); the bulk cargo transport device also includes a second drive mechanism; the first drive mechanism further includes a gear (31) and a rack (32), the gear (31) meshing with the rack (32); under the action of the second drive mechanism, the gear (31) can roll relative to the rack (32); the rack (32) is an arc-shaped rack (32), and the rack (32) is fixedly connected to the cargo bin (10); The second drive mechanism includes a swing member (33) and a drive assembly (34). The swing member (33) has a pivot end and a swing end. The gear (31) is rotatably disposed at the swing end of the swing member (33). The pivot end of the swing member (33) is pivotally connected to the cargo bin (10). The drive assembly (34) is drively connected to the swing member (33) and configured to drive the swing member (33) to swing relative to the cargo bin (10). The center of the arc-shaped rack (32) is located at the pivot end.

2. The bulk cargo transport device according to claim 1, characterized in that, The drive assembly (34) includes a linear drive pivotally connected to the hopper (10), the other end of which is pivotally connected between the pivot end and the swing end of the swing member (33).

3. The bulk cargo transport device according to claim 1 or 2, characterized in that, The bulk cargo transport device also includes a reset mechanism, one end of which is fixed relative to the cargo hopper (10), and the other end of which is connected to the second end.

4. The bulk cargo transport device according to claim 3, characterized in that, The reset mechanism includes a tension spring (41), one end of which is fixed relative to the cargo bin (10), and the other end of which is connected to the second end.

5. The bulk cargo transport device according to claim 4, characterized in that, The reset mechanism also includes a sliding connecting rod (42), which connects the tension spring (41) and the second end; the cargo hopper (10) is provided with a guide groove (12), which extends in the vertical direction, and the sliding connecting rod (42) is slidably disposed in the guide groove (12).

6. The bulk cargo transport device according to claim 1, 2, 4, or 5, characterized in that, The bulk cargo transport device also includes multiple support rods (23), which are disposed on the side of the flexible container (21) facing away from the material, and the multiple support rods (23) are arranged along the direction from the first end to the second end.

7. A coal mine excavation line, characterized in that, The coal mining line includes a bulk cargo transport device according to any one of claims 1-6.

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