Transport vehicle for coal mine mineral aggregate

Abstract

The invention discloses a transport vehicle for coal mine mineral aggregate. The transport vehicle comprises a base, a first connecting device and a box body. Wherein the base is provided with a bearing surface, the first connecting device comprises a first connecting device first end and a first connecting device second end which are in sliding connection, and the first connecting device first end is arranged on the bearing surface; the bottom surface of the box body comprises a first bottom plate, a second bottom plate and a bottom plate connecting part, the first side of the first bottom plate is rotatably connected with the first side of the second bottom plate through the bottom plate connecting part, and the second end of the first connecting device is connected with the base; the first side of the first bottom plate and the first side of the second bottom plate are driven to move in the direction perpendicular to the bearing surface, so that the first bottom plate and the second bottom plate are obliquely arranged relative to the bearing surface; a discharging opening is formed in the side portion of the box body and used for discharging coal mine mineral aggregate. According to the scheme, unloading can be conducted on the two sides of the transport vehicle, and the unloading efficiency is improved.

Description

Technical Field

[0001] The present disclosure generally relates to the field of vehicle technology. More specifically, the present disclosure relates to a transport vehicle for coal mine materials. Background Art

[0002] During the mining process, the gangue and waste rock generated during coal mining must be promptly removed, otherwise their accumulation will block the working face. Underground mine cars are required to promptly transport these materials to the pit yard and then hoist them to the surface via the main shaft. Furthermore, after mining, underground tunnels and working faces require immediate support (to prevent collapse). The sand, cement, concrete, I-beams, and other materials required for support must be precisely delivered via specialized transport vehicles (such as mixer-transport vehicles and rail-mounted dump trucks). Failure to promptly transport cement and sand will lead to delayed support, causing the tunnel roof to sink and collapse, potentially causing safety accidents. Furthermore, in underground mining operations, inclined tunnels (such as uphill and downhill tunnels in the mining area) are critical transportation channels connecting different mining levels. The track laying in these tunnels is affected by geological conditions, construction accuracy, and long-term mine pressure, making them prone to problems such as uneven track heights, excessive gauge deviation, and track joint settlement.

[0003] Existing solutions often suffer from undersized design volumes, resulting in limited single-trip transport capacity and a difficulty meeting the high-volume hauling demands of modern mines. Furthermore, during loading operations in inclined tunnels, the lack of effective material guidance and distribution mechanisms in these vehicles can lead to uneven distribution of materials such as gangue and ore due to uneven drop locations and varying particle sizes (e.g., concentrated accumulation of large gangue lumps). This uneven material distribution directly causes the car's center of gravity to shift. As the car travels along uneven tracks in inclined tunnels, the undulations of the track further exacerbate these fluctuations. If the car encounters track joints with steps or localized subsidence, the load on one wheel pair can increase dramatically, potentially exceeding the vehicle's stability threshold and causing a rollover. A rollover not only spills material and blocks the tunnel, disrupting subsequent transport operations, but can also damage supporting structures, cables, and other auxiliary facilities within the tunnel, posing a serious threat to the lives of on-site workers and resulting in extremely unsafe conditions.

[0004] Furthermore, existing mine car unloading operations (especially in small and medium-sized mines or older mines) still widely rely on manual tipping, which requires the coordinated operation of multiple operators: several personnel are typically responsible for levering the turning fulcrum of the mine car, additional personnel are required to control the brakes to prevent the car from slipping, and additional personnel are required to monitor the unloading area to ensure it is clear of obstacles. The entire unloading process requires close contact with the tipping mine car, and each unloading operation is time-consuming, which seriously restricts the turnover efficiency of the mine car and reduces the overall throughput of the transportation system.

[0005] In view of this, there is an urgent need to provide a transport vehicle for coal mine materials so as to improve the efficiency of unloading of the transport vehicle while ensuring the safe operation of the transport vehicle. Summary of the Invention

[0006] In order to at least solve one or more of the technical problems mentioned above, the present application proposes a solution for a transportation vehicle for coal mine materials in multiple aspects.

[0007] In a first aspect, the present application provides a transport vehicle for coal mine materials, the transport vehicle comprising a base, a first connecting device and a box body; wherein the base has a load-bearing surface, and a plurality of through holes perpendicular to the load-bearing surface are provided on the base, and one or more wheels are provided in the through holes; the first connecting device comprises a first end of a first connecting device and a second end of a first connecting device that are slidably connected, wherein the first end of the first connecting device is arranged on the load-bearing surface; the bottom surface of the box body comprises a first bottom plate, a second bottom plate and a bottom plate connecting portion, the first bottom plate first side of the first bottom plate and the second bottom plate first side of the second bottom plate are rotatably connected through the bottom plate connecting portion, wherein the second end of the first connecting device is connected to the base to drive the first side of the first bottom plate and the first side of the second bottom plate to move in a direction perpendicular to the load-bearing surface, so that the first bottom plate and the second bottom plate are inclined relative to the load-bearing surface; the side of the box body is provided with a discharge port for unloading coal mine materials.

[0008] In some embodiments, the second end of the first connecting device is connected to the base plate connecting portion to drive the base plate connecting portion to move in a direction perpendicular to the bearing surface, so as to drive the first side of the first base plate and the first side of the second base plate to move in a direction perpendicular to the bearing surface.

[0009] In some embodiments, the first connecting device includes a first hydraulic device and a second hydraulic device, the piston rod of the first hydraulic device is connected to the first base plate, and the piston rod of the second hydraulic device is connected to the second base plate, so as to drive the first side of the first base plate and the first side of the second base plate to move in a direction perpendicular to the bearing surface.

[0010] In some embodiments, a first ear plate is provided on the first base plate, a second ear plate is provided on the second base plate, the piston rod of the first hydraulic device is connected to the first ear plate, the piston rod of the second hydraulic device is connected to the first ear plate, the fixed end of the first hydraulic device is rotatably connected to the first bearing surface, and the fixed end of the second hydraulic device is rotatably connected to the first bearing surface.

[0011] In some embodiments, the piston rod of the first hydraulic device and the first lug plate are connected via a pin, and the piston rod of the second hydraulic device and the second lug plate are connected via a pin.

[0012] In some embodiments, the base is formed by welding I-beams.

[0013] In some embodiments, a partition is provided inside the box.

[0014] In some embodiments, an operating valve is provided on the box body, and the operating valve is electrically connected to the second hydraulic device.

[0015] By providing a transport vehicle for coal mine materials as described above, the first and second bottom plates of the transport vehicle of the present application can be tilted relative to the load-bearing surface so that unloading can be carried out on both sides of the transport vehicle, thereby improving unloading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an illustrative and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 An exemplary structural diagram of a transport vehicle for coal mine materials according to some embodiments of the present application is shown; Figure 2 An exemplary bottom view of a transport vehicle for coal mine materials with the floor removed is shown in some embodiments of the present application; Figure 3 An exemplary side view of a coal mine material transport vehicle including a first hydraulic device and a second hydraulic device according to some embodiments of the present application is shown.

[0017] Tag Name 10 - base, 11 - bearing surface, 12 - through hole, 13 - wheel, 20 - first connecting device, 21 - first hydraulic device, 22 - second hydraulic device, 30 - housing, 31 - first bottom plate, 32 - second bottom plate, 33 - bottom plate connecting portion, 40 - operating valve. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of this disclosure in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this disclosure, not all of them. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this disclosure.

[0019] It should be understood that the terms “include” and “comprising” used in the specification and claims of the present disclosure indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections thereof.

[0020] It should also be understood that the terminology used in this disclosure is for the purpose of describing specific embodiments only and is not intended to limit the disclosure. As used in this disclosure and the claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise. It should be further understood that the term "and / or" as used in this disclosure and the claims refers to any and all possible combinations of one or more of the associated listed items, including and including these combinations.

[0021] As used in this specification and claims, the term “if” can be interpreted as “when” or “upon” or “in response to determining” or “in response to detecting,” depending on the context. Similarly, the phrase “if it is determined” or “if [described condition or event] is detected” can be interpreted as meaning “upon determination” or “in response to determining” or “upon detection of [described condition or event]” or “in response to detecting [described condition or event],” depending on the context.

[0022] The specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0023] Figure 1 An exemplary structural diagram of a transport vehicle for coal mine materials according to some embodiments of the present application is shown. Figure 2 An exemplary bottom view of a transport vehicle for coal mine materials with the floor removed is shown in some embodiments of the present application. Figure 1 and Figure 2As shown, the transport vehicle includes a base 10, a first connecting device 20 and a box body 30; wherein the base 10 has a bearing surface 11, and a plurality of through holes 12 are provided on the base 10 and are perpendicular to the bearing surface 11, and one or more wheels 13 are provided in the through holes; the first connecting device 20 includes a first end of a first connecting device and a second end of a first connecting device that are slidably connected, wherein the first end of the first connecting device is provided on the bearing surface 11; the bottom surface of the box body 30 includes a first bottom plate 31, a second bottom plate 32 and a bottom plate connecting portion 33, wherein the first bottom plate first side of the first bottom plate 31 and the second bottom plate first side of the second bottom plate 32 are rotatably connected through the bottom plate connecting portion 33, wherein the second end of the first connecting device is connected to the base 10 to drive the first side of the first bottom plate and the first side of the second bottom plate to move in a direction perpendicular to the bearing surface 11, so that the first bottom plate 31 and the second bottom plate 32 are tilted relative to the bearing surface 11; the side of the box body 30 is provided with a discharge port for unloading coal mine material.

[0024] In some embodiments, the aforementioned coal mine materials may include sand, cement, gravel, gangue, etc. It is understandable that during the mining process, the gangue and gravel generated during the coal mining / mining process need to be transported out in a timely manner, otherwise the accumulation will block the working face. At this time, the mine cars underground need to promptly transport these gangue and gravel and other materials to the pit bottom parking lot, and then lift them to the ground through the main shaft. Furthermore, after the underground tunnels and working faces are mined, they need to be supported immediately to prevent collapse, and the sand, cement, I-beams and other materials required for support must be accurately delivered by special transport vehicles. If the cement and sand are not transported in time, the support lag will cause the tunnel roof to sink and collapse, causing safety accidents.

[0025] In some embodiments, the side of the base 10 facing away from the bottom surface can be a load-bearing surface 11. Furthermore, a plurality of through holes 12 can be provided on the base 10, and one or more wheels 13 can be provided in the through holes 12. It is understood that since the transport vehicle has a high load capacity and requires strong power, it can transmit power through axles.

[0026] In some embodiments, the first connecting device may be configured as a retractable hydraulic device, wherein the first end of the first connecting device may be a fixed end of the hydraulic device, and the second end of the first connecting device may be a piston end of the hydraulic device. The first end of the first connecting device disposed on the bearing surface 11 may include a fixed end of the hydraulic device fixedly connected to the bearing surface 11 or a rotatable connection therebetween.

[0027] In some embodiments, the bottom surface of the box body 30 may include a first bottom plate 31, a second bottom plate 32, and a bottom plate connecting portion 33. The first bottom plate 31 and the second bottom plate 32 may be rotatably connected via the bottom plate connecting portion 33, wherein the first bottom plate 31 may be rotatably connected to the bottom plate connecting portion 33, and the second bottom plate 32 may also be rotatably connected to the bottom plate connecting portion 33.

[0028] In some embodiments, the bottom plate connection portion 33 may be a rotational axis parallel to the support surface 11, and the rotational axis may also be parallel to the direction of movement of the transport vehicle. The first bottom plate 31 may be provided with a first through hole rotatably connected to the rotational axis, and the second bottom plate 32 may be provided with a second through hole rotatably connected to the rotational axis.

[0029] In other embodiments, the bottom plate connection portion 33 may be a hinge, and the first bottom plate 31 and the second bottom plate 32 may be connected by the hinge, so that the first bottom plate 31 and the second bottom plate 32 may be rotatably connected around the axis of the hinge.

[0030] In some embodiments, the first side of the first bottom plate may be the side connected to the bottom plate connecting portion, and the first side of the second bottom plate may also be the side connected to the bottom plate connecting portion.

[0031] It is understood that the bottom plate connection portion can be provided in the middle region of the base 10, the first side of the first bottom plate can also be located in the middle region, the second side of the first bottom plate can be an edge region of the base 10, and the second side of the first bottom plate can be connected to the side of the box 30. Similarly, the first side of the second bottom plate can also be located in the middle region, the second side of the second bottom plate can be an edge region of the base 10, and the second side of the second bottom plate can be connected to the side of the box 30.

[0032] In some embodiments, the second end of the first connecting device can be connected to the base 10. It is understandable that the second end of the first connecting device can be a piston end of a hydraulic device.

[0033] In some embodiments, the piston end of the hydraulic device can move relative to the fixed end of the hydraulic device, thereby driving the first side of the first base plate and the first side of the second base plate to move in a direction perpendicular to the bearing surface 11.

[0034] In some embodiments, the fixed end of the aforementioned hydraulic device can be arranged in a direction perpendicular to the bearing surface 11, and the axis of the aforementioned piston end can also be perpendicular to the bearing surface 11. In this case, the aforementioned piston rod can be connected to the base plate connection portion. When the aforementioned piston rod moves in a direction perpendicular to the bearing surface 11 and toward the side away from the bearing surface, it can drive the base plate connection portion to move toward the side away from the bearing surface 11. At this time, the first side of the first base plate can rotate relative to the axis of the base plate connection portion while following the base plate connection portion to move toward the side away from the bearing surface 11. Similarly, the first side of the second base plate can rotate relative to the axis of the base plate connection portion while following the base plate connection portion to move away from the bearing surface 11. It can be understood that at this time, the middle area of ​​the base plate can move together toward the side away from the bearing surface 11.

[0035] Furthermore, since the second side of the first bottom plate can be connected to the side of the box body 30, and the second side of the first bottom plate can be connected to the first side of the box body 30 by a hinge, the second side of the second bottom plate can also be connected to the second side of the box body 30 by a hinge. When the first side of the first bottom plate moves toward the side away from the load-bearing surface, the second side of the first bottom plate can move toward the middle area of ​​the first bottom plate, and it will not move toward the side away from the load-bearing surface. At this time, the first bottom plate can be changed from being parallel to the load-bearing surface 11 to being inclined to the load-bearing surface 11, and the position of the first side of the first bottom plate can be higher than the second side of the first bottom plate. Similarly, when the first side of the second bottom plate moves toward the side away from the load-bearing surface, the second side of the second bottom plate can move toward the middle area of ​​the first bottom plate, and it will not move toward the side away from the load-bearing surface. At this time, the second bottom plate can be changed from being parallel to the load-bearing surface 11 to being inclined to the load-bearing surface 11, and the position of the first side of the second bottom plate can be higher than the second side of the second bottom plate. It is understandable that, at this time, for the entire base 10, the middle area of ​​the base 10 can be higher than the edge area of ​​the base 10. The coal material located on the base 10 can move along the aforementioned inclined first and second bottom plates toward the second side of the first and second bottom plates, that is, toward the edge area of ​​the base 10.

[0036] Furthermore, a discharge port can be provided on the box side connected to the second side of the first floor and the box side connected to the second side of the second bottom plate, and the discharge port can be opened to realize the discharge of coal mine materials.

[0037] In some embodiments, the aforementioned hydraulic device may further include a first hydraulic device and a second hydraulic device, wherein the fixed ends of the first hydraulic device and the second hydraulic device may be rotatably connected to the bearing surface 11, the first piston rod of the aforementioned first hydraulic device may be connected to the middle area of ​​the first base plate, and the second piston rod of the second hydraulic device may be connected to the middle area of ​​the second base plate. Furthermore, along a direction perpendicular to the bearing surface 11, the projection of the first fixed end of the first hydraulic device and the projection of the second base plate 32 may at least partially overlap; the projection of the second fixed end of the second hydraulic device may at least partially overlap with the projection of the first base plate 31, so that the axes of the first piston rod and the second piston rod are arranged crosswise, and the axis of the first piston rod may be arranged at an angle relative to the first base plate, and the axis of the second piston rod may be arranged at an angle relative to the second base plate. It is understood that at this time, the axis of the first piston rod may also be arranged at an angle relative to the bearing surface 11, and the axis of the second piston rod may also be arranged at an angle relative to the bearing surface 11.

[0038] When the first piston rod moves along its axis, the first ear plate connected to the first piston rod can move along its axis with the first piston rod. At this time, the first bottom plate can rotate around the axis of the first ear plate while following the movement of the first ear plate. At this time, the first side of the first bottom plate gradually rises around the axis of the first ear plate, and the second side of the first bottom plate can move toward the middle area of ​​the bottom plate, so that the first bottom plate is tilted.

[0039] Similarly, when the piston rod moves along its axis, the second lug connected to the second piston rod can move along its axis with the second piston rod. At this time, the second base plate can follow the movement of the first lug while rotating around the axis of the second lug. At this time, the first side of the second base plate gradually rises around the axis of the second lug, and the second side of the second base plate can move toward the middle area of ​​the base plate, causing the second base plate to tilt. It is understood that at this time, the middle area of ​​the base plate can move together toward the side away from the bearing surface 11.

[0040] Furthermore, since the second side of the first bottom plate can be connected to the side of the box body 30, and the second side of the first bottom plate can be connected to the first side of the box body 30 by a hinge, the second side of the second bottom plate can also be connected to the second side of the box body 30 by a hinge. When the first side of the first bottom plate moves toward the side away from the load-bearing surface, the second side of the first bottom plate can move toward the middle area of ​​the first bottom plate, and it will not move toward the side away from the load-bearing surface. At this time, the first bottom plate can be changed from being parallel to the load-bearing surface 11 to being inclined to the load-bearing surface 11, and the position of the first side of the first bottom plate can be higher than the second side of the first bottom plate. Similarly, when the first side of the second bottom plate moves toward the side away from the load-bearing surface, the second side of the second bottom plate can move toward the middle area of ​​the first bottom plate, and it will not move toward the side away from the load-bearing surface. At this time, the second bottom plate can be changed from being parallel to the load-bearing surface 11 to being inclined to the load-bearing surface 11, and the position of the first side of the second bottom plate can be higher than the second side of the second bottom plate. It is understandable that, at this time, for the entire base 10, the middle area of ​​the base 10 can be higher than the edge area of ​​the base 10. The coal material located on the base 10 can move along the aforementioned inclined first and second bottom plates toward the second side of the first and second bottom plates, that is, toward the edge area of ​​the base 10.

[0041] Through the solution of the present application, the first and second bottom plates of the transport vehicle can be tilted relative to the load-bearing surface so that unloading can be carried out on both sides of the transport vehicle, which can shorten the unloading time and thus improve the unloading efficiency. At the same time, it can reduce the labor intensity of personnel and improve the safety management level of inclined shaft transportation. In addition, the vehicle can load sand, cement, gangue equipment parts, etc. used underground, and through the setting of the partition, the vehicle has the functionality of a multi-purpose vehicle and can load different materials at the same time, with good versatility.

[0042] In some embodiments, the second end of the first connecting device is connected to the bottom plate connecting portion 33, driving the bottom plate connecting portion 33 to move in a direction perpendicular to the bearing surface 11, so as to drive the first side of the first bottom plate and the first side of the second bottom plate to move in a direction perpendicular to the bearing surface 11.

[0043] In some embodiments, the fixed end of the aforementioned hydraulic device can be arranged in a direction perpendicular to the bearing surface 11, and the axis of the aforementioned piston end can also be perpendicular to the bearing surface 11. In this case, the aforementioned piston rod can be connected to the base plate connection portion. When the aforementioned piston rod moves in a direction perpendicular to the bearing surface 11 and toward the side away from the bearing surface, it can drive the base plate connection portion to move toward the side away from the bearing surface 11. At this time, the first side of the first base plate can rotate relative to the axis of the base plate connection portion while following the base plate connection portion to move toward the side away from the bearing surface 11. Similarly, the first side of the second base plate can rotate relative to the axis of the base plate connection portion while following the base plate connection portion to move away from the bearing surface 11. It can be understood that at this time, the middle area of ​​the base plate can move together toward the side away from the bearing surface 11.

[0044] Furthermore, since the second side of the first bottom plate can be connected to the side of the box body 30, and the second side of the first bottom plate can be connected to the first side of the box body 30 by a hinge, the second side of the second bottom plate can also be connected to the second side of the box body 30 by a hinge. When the first side of the first bottom plate moves toward the side away from the load-bearing surface, the second side of the first bottom plate can move toward the middle area of ​​the first bottom plate, and it will not move toward the side away from the load-bearing surface. At this time, the first bottom plate can be changed from being parallel to the load-bearing surface 11 to being inclined to the load-bearing surface 11, and the position of the first side of the first bottom plate can be higher than the second side of the first bottom plate. Similarly, when the first side of the second bottom plate moves toward the side away from the load-bearing surface, the second side of the second bottom plate can move toward the middle area of ​​the first bottom plate, and it will not move toward the side away from the load-bearing surface. At this time, the second bottom plate can be changed from being parallel to the load-bearing surface 11 to being inclined to the load-bearing surface 11, and the position of the first side of the second bottom plate can be higher than the second side of the second bottom plate. It is understandable that, at this time, for the entire base 10, the middle area of ​​the base 10 can be higher than the edge area of ​​the base 10. The coal material located on the base 10 can move along the aforementioned inclined first and second bottom plates toward the second side of the first and second bottom plates, that is, toward the edge area of ​​the base 10.

[0045] Figure 3 FIG2 shows an exemplary side view of a transport vehicle for coal mine materials according to some embodiments of the present application, including a first hydraulic device and a second hydraulic device. Figure 3 As shown, the piston rod of the first hydraulic device is connected to the first base plate 31, and the piston rod of the second hydraulic device is connected to the second base plate 32, so as to drive the first side of the first base plate and the first side of the second base plate to move in a direction perpendicular to the bearing surface 11.

[0046] In some embodiments, a first ear plate is provided on the first base plate 31, a second ear plate is provided on the second base plate 32, the piston rod of the first hydraulic device is connected to the first ear plate, the piston rod of the second hydraulic device is connected to the first ear plate, the fixed end of the first hydraulic device is rotatably connected to the first bearing surface, and the fixed end of the second hydraulic device is rotatably connected to the first bearing surface.

[0047] In some embodiments, the hydraulic device may further include a first hydraulic device 21 and a second hydraulic device 22. The fixed ends of the first and second hydraulic devices may be rotatably connected to the bearing surface 11. The first piston rod of the first hydraulic device may be connected to the middle area of ​​the first base plate, and the second piston rod of the second hydraulic device may be connected to the middle area of ​​the second base plate. Furthermore, along a direction perpendicular to the bearing surface 11, the projection of the first fixed end of the first hydraulic device and the projection of the second base plate 32 may at least partially overlap; the projection of the second fixed end of the second hydraulic device may at least partially overlap with the projection of the first base plate 31, so that the axes of the first and second piston rods are arranged crosswise, and the axes of the first and second piston rods may be arranged at an angle relative to the first and second base plates. It is understood that in this case, the axes of the first and second piston rods may also be arranged at an angle relative to the bearing surface 11, and the axes of the second and first piston rods may also be arranged at an angle relative to the bearing surface 11.

[0048] When the first piston rod moves along its axis, the first ear plate connected to the first piston rod can move along its axis with the first piston rod. At this time, the first bottom plate can rotate around the axis of the first ear plate while following the movement of the first ear plate. At this time, the first side of the first bottom plate gradually rises around the axis of the first ear plate, and the second side of the first bottom plate can move toward the middle area of ​​the bottom plate, so that the first bottom plate is tilted.

[0049] Similarly, when the piston rod moves along its axis, the second lug connected to the second piston rod can move along its axis with the second piston rod. At this time, the second base plate can follow the movement of the first lug while rotating around the axis of the second lug. At this time, the first side of the second base plate gradually rises around the axis of the second lug, and the second side of the second base plate can move toward the middle area of ​​the base plate, causing the second base plate to tilt. It is understood that at this time, the middle area of ​​the base plate can move together toward the side away from the bearing surface 11.

[0050] Furthermore, since the second side of the first bottom plate can be connected to the side of the box body 30, and the second side of the first bottom plate can be connected to the first side of the box body 30 by a hinge, the second side of the second bottom plate can also be connected to the second side of the box body 30 by a hinge. When the first side of the first bottom plate moves toward the side away from the load-bearing surface, the second side of the first bottom plate can move toward the middle area of ​​the first bottom plate, and it will not move toward the side away from the load-bearing surface. At this time, the first bottom plate can be changed from being parallel to the load-bearing surface 11 to being inclined to the load-bearing surface 11, and the position of the first side of the first bottom plate can be higher than the second side of the first bottom plate. Similarly, when the first side of the second bottom plate moves toward the side away from the load-bearing surface, the second side of the second bottom plate can move toward the middle area of ​​the first bottom plate, and it will not move toward the side away from the load-bearing surface. At this time, the second bottom plate can be changed from being parallel to the load-bearing surface 11 to being inclined to the load-bearing surface 11, and the position of the first side of the second bottom plate can be higher than the second side of the second bottom plate. It is understandable that, at this time, for the entire base 10, the middle area of ​​the base 10 can be higher than the edge area of ​​the base 10. The coal material located on the base 10 can move along the aforementioned inclined first and second bottom plates toward the second side of the first and second bottom plates, that is, toward the edge area of ​​the base 10.

[0051] In some embodiments, the base 10 is formed by welding I-beams.

[0052] In some embodiments, the cross-sectional moment of inertia is large and the bending and torsional resistance is strong: its upper and lower flanges (i.e., the upper and lower horizontal sides of the "I" character) can effectively disperse lateral pressure, and the web (the vertical side of the "I" character) can withstand longitudinal shear force. Compared with structures made of ordinary steel plates spliced ​​or round steel welded, it can have greater bearing capacity with the same material usage.

[0053] In addition, the "I"-shaped cross-section of the I-beam itself has excellent torsional resistance, which can offset the torsional force generated by the height difference of the road surface during vehicle driving and reduce the twisting and deformation of the frame; the welding process can rigidly connect the I-beam with other components (wheel brackets, fenders, load-bearing beams). Compared with bolt connections, the overall structure has stronger integrity and can effectively disperse local impact loads.

[0054] In some embodiments, a partition is provided inside the box 30 .

[0055] It is understandable that partitions may be provided inside the aforementioned box body to divide the interior of the box body into different areas. Furthermore, a discharge opening may be provided on the side of the box body corresponding to each area.

[0056] In some embodiments, different coal mine materials can be placed in different areas within the box body, and when unloading, the materials can be unloaded in sequence according to the different areas, thereby avoiding mixing of different coal mine materials.

[0057] In some embodiments, an operating valve 40 is provided on the box body 30 , and the operating valve is electrically connected to the first connecting device.

[0058] In some embodiments, the aforementioned operating valve may be electrically connected to the first connecting device, so that the movement of the second end of the first connecting device may be controlled by controlling the operating valve, thereby facilitating the disassembly of the transport vehicle.

[0059] Through the solution of the present application, the first and second bottom plates of the transport vehicle can be tilted relative to the load-bearing surface so that unloading can be carried out on both sides of the transport vehicle, which can shorten the unloading time and thus improve the unloading efficiency. At the same time, it can reduce the labor intensity of personnel and improve the safety management level of inclined shaft transportation. In addition, the vehicle can load sand, cement, gangue equipment spare parts, etc. for underground use, and through the setting of the partition, the vehicle has the functionality of a multi-purpose vehicle and can load different materials at the same time, with good versatility.

[0060] Although a plurality of embodiments of the present disclosure have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art may conceive of many modifications, changes, and alternatives without departing from the ideas and spirit of the present disclosure. It should be understood that in practicing the present disclosure, various alternatives to the embodiments of the present disclosure described herein may be adopted. The appended claims are intended to define the scope of protection of the present disclosure and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A transport vehicle for coal mine materials, characterized in that: The transport vehicle comprises a base (10), a first connecting device (20) and a box (30); wherein, The base (10) has a bearing surface (11), and a plurality of through holes perpendicular to the bearing surface (11) are provided on the base (10), and one or more wheels (13) are provided in the through holes; The first connecting device (20) comprises a first connecting device first end and a first connecting device second end of a sliding connection, wherein the first connecting device first end is arranged on the bearing surface (11); The bottom surface of the box body (30) includes a first bottom plate (31), a second bottom plate (32), and a bottom plate connecting portion (33). The first bottom plate first side of the first bottom plate (31) and the second bottom plate first side of the second bottom plate (32) are rotatably connected via the bottom plate connecting portion (33). wherein the second end of the first connecting device is connected to the base (10) to drive the first side of the first bottom plate and the first side of the second bottom plate to move in a direction perpendicular to the bearing surface (11), so that the first bottom plate (31) and the second bottom plate (32) are inclined relative to the bearing surface (11); A discharge port is provided on the side of the box body (30) for unloading coal mine materials.

2. The transport vehicle according to claim 1, characterized in that: The second end of the first connecting device is connected to the bottom plate connecting portion (33) to drive the bottom plate connecting portion (33) to move in a direction perpendicular to the bearing surface (11), thereby driving the first side of the first bottom plate and the first side of the second bottom plate to move in a direction perpendicular to the bearing surface (11).

3. The transport vehicle according to claim 1, characterized in that: The first connecting device includes a first hydraulic device and a second hydraulic device, wherein the piston rod of the first hydraulic device is connected to the first base plate (31), and the piston rod of the second hydraulic device is connected to the second base plate (32), so as to drive the first side of the first base plate and the first side of the second base plate to move in a direction perpendicular to the bearing surface (11).

4. The transport vehicle according to claim 3, characterized in that: A first ear plate is provided on the first base plate (31), a second ear plate is provided on the second base plate (32), a piston rod of the first hydraulic device is connected to the first ear plate, a piston rod of the second hydraulic device is connected to the first ear plate, a fixed end of the first hydraulic device is rotatably connected to the bearing surface (11), and a fixed end of the second hydraulic device is rotatably connected to the bearing surface (11).

5. The transport vehicle according to claim 4, characterized in that: The piston rod of the first hydraulic device and the first lug plate are connected via a pin shaft, and the piston rod of the second hydraulic device and the second lug plate are connected via a pin shaft.

6. The transport vehicle according to claim 1, characterized in that: The base (10) is formed by welding I-beams.

7. The transport vehicle according to claim 1, characterized in that: A partition is provided inside the box (30).

8. The transport vehicle according to claim 1, characterized in that An operating valve is provided on the box body (30), and the operating valve is electrically connected to the first connecting device.

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