A tracked mining vehicle

Abstract

This invention discloses a tracked mining transport vehicle, belonging to the technical field of mining equipment. It includes a vehicle body, a cargo box, and a tipping mechanism. The cargo box is mounted on the vehicle body via the tipping mechanism, which includes a connecting plate, a base, and a drive assembly. The base is mounted on the vehicle body, and the connecting plate is connected to the bottom of the cargo box and rotatably mounted on the base. The drive assembly is mounted on the base and drives the connecting plate to rotate. Each adjacent side of the connecting plate has a rotating rod, and the base has slots corresponding to these rotating rods. A limiting plate is movable on one side of each slot. When the connecting plate rotates, only one limiting plate presses against the corresponding rotating rod within the slot, causing the connecting plate to rotate around the rotating rod. The tracked mining transport vehicle provided by this invention, through its tipping mechanism, enables the cargo box to tilt in four directions, solving the technical problem of the need for repeated turning and adjusting the parking position to complete unloading, which is cumbersome and time-consuming.

Description

Technical Field

[0001] This invention belongs to the field of mining equipment technology, and specifically relates to a tracked mining transport vehicle. Background Technology

[0002] Mining tracked transport vehicles are core auxiliary transport equipment for underground and open-pit mining operations. With the advantage of low ground pressure due to their tracked walking structure, they can flexibly adapt to complex working conditions such as muddy and soft soil, steep inclines, and narrow tunnels. They can effectively complete the transfer of materials such as gangue, equipment, and auxiliary materials, and are key equipment for improving the efficiency and safety of mining operations.

[0003] In the current technology, from the perspective of unloading methods, the cargo beds of mainstream tracked mining vehicles all adopt a one-way tilting design, and the tilting direction is mostly limited to the rear of the vehicle. This design has a simple structure and low manufacturing cost, and can meet basic unloading needs in conventional scenarios where there is ample space in the tunnel and the unloading point is fixed.

[0004] However, in narrow underground tunnels or intersections of branch tunnels, sufficient working space must be reserved for unloading at the rear of the vehicle. The vehicle must repeatedly turn around and adjust its parking position to complete the unloading, making the operation cumbersome and consuming a significant amount of time. In open-pit mines with irregular unloading points or steeply inclined downhill tunnels, when the direction of the vehicle's rear tilt is inconsistent with the unloading target area, problems such as material rolling down and injuring people or inaccurate unloading can easily occur. Therefore, it is urgent to improve existing transport vehicles to solve these problems. Summary of the Invention

[0005] The purpose of this invention is to provide a tracked mining transport vehicle that allows the cargo bed to tilt and unload in multiple directions, adapting to various scenarios and shortening operation time.

[0006] To achieve the above objectives, this invention provides a tracked mining vehicle, including a body, a cargo box, and a tipping mechanism. The cargo box is mounted on the body via the tipping mechanism. The tipping mechanism includes a connecting plate, a base, and a drive assembly. The base is mounted on the body, and the connecting plate is rotatably mounted on the base and connected to the bottom of the cargo box. The drive assembly is mounted on the base and drives the connecting plate to rotate. At least one rotating rod is provided on each of the two sides of the connecting plate. The base has slots corresponding to the rotating rods. A limiting plate is movably provided on the side of each slot. When any limiting plate limits the corresponding rotating rod to engage in the slot, the connecting plate can rotate around the rotating rod engaged in the slot under the action of the drive assembly to drive the cargo box to swing vertically.

[0007] In one possible implementation, the drive assembly includes a bracket, a first hinge rod, a second hinge rod, and a cross shaft. The bracket is mounted on the base and located below the connecting plate. A cross shaft is rotatably provided at the bottom of the connecting plate and at the top of the bracket. One end of the first hinge rod and the second hinge rod are hinged to each other, and the other end of each has a U-shaped connecting portion. The U-shaped connecting portion of the first hinge rod is hinged to the cross shaft on the bracket, and the U-shaped connecting portion of the second hinge rod is hinged to the cross shaft on the connecting plate. The bracket is provided with a rotation drive for driving the first hinge rod to rotate. The rotation drive is used to drive the first hinge rod to rotate, and the first hinge rod can drive the connecting plate to rotate through the second hinge rod under the action of the rotation drive.

[0008] In one possible implementation, the rotating rod has an annular groove on its peripheral wall, and the limiting plate has a protrusion that can engage with the annular groove to lock the rotating rod in the corresponding slot.

[0009] In one possible implementation, the annular groove has several protrusions spaced apart circumferentially, and the base is also provided with an elastic element. The elastic element can provide an upward pushing force to bring the rotating rod closer to the limiting plate. After the limiting plate presses the rotating rod against the slot, the rotating rod can rotate and drive the several protrusions to intermittently impact the protrusions, so that the truck bed vibrates and assists in unloading the truck bed.

[0010] In one possible implementation, the limiting plate can be translated toward the center of the base to limit the rotating rod within the slot. The end of the limiting plate near the slot has an arc-shaped guide surface, which can press down on the corresponding rotating rod to move it into the corresponding slot after the limiting plate moves.

[0011] In one possible implementation, a linear drive is provided between the base and the vehicle body, the linear drive being used to drive the base to rise and fall.

[0012] In one possible implementation, a rotating rod is provided on each of the four sides of the connecting plate, and the four sides of the base have slots corresponding to the rotating rods.

[0013] In one possible implementation, all four sides of the base protrude beyond the edge of the connecting plate, and the rotating rod is connected to the bottom of the connecting plate via an extension rod and protrudes outward beyond the edge of the connecting plate.

[0014] In one possible implementation, the base is frame-shaped, and the bracket is disposed in the middle of the inner side of the base.

[0015] In one possible implementation, the vehicle body is also equipped with a lifting hook or a swinging bucket. A winch mechanism is also provided at the rear of the vehicle body to assist in traction of the vehicle body.

[0016] The significant technical advantages of this invention are as follows: the rotating rod on the adjacent side of the connecting plate cooperates with the slot of the base and the movable limiting plate, combined with the driving action of the drive assembly, to realize the tipping and unloading of the truck bed in two adjacent directions, solving the problem of needing to adjust the vehicle position for a single unloading direction; the limiting plate is movable on one side of the slot, and the locking and releasing of the rotating rod can be achieved by moving the limiting plate, completing the switching of the rotating fulcrum of the connecting plate without the need for additional components, simplifying the operation steps; when the connecting plate rotates, there is only one limiting plate pressing against the corresponding rotating rod in the slot, so that there is only one fixed rotating fulcrum for each tipping of the connecting plate, avoiding interference from multiple fulcrums or fulcrum offset during tipping, ensuring the stability of the driving assembly when driving the connecting plate to rotate, and thus ensuring the stability of the tipping and unloading process of the truck bed. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of a transport vehicle according to one embodiment of the present invention;

[0019] Figure 2 for Figure 1 Schematic diagram of the structure of the middle car bucket;

[0020] Figure 3 for Figure 2 A schematic diagram of the central flipping mechanism from one perspective;

[0021] Figure 4 for Figure 3 A magnified structural diagram of part A in the middle;

[0022] Figure 5 for Figure 2 A structural schematic diagram of the central flipping mechanism from another perspective;

[0023] Figure 6 for Figure 3 Schematic diagram of the middle limiting plate;

[0024] In the diagram: 1. Vehicle body, 2. Truck bed, 3. Tilting mechanism, 31. Connecting plate, 311. Rotating rod, 3111. Annular groove, 3112. Protrusion, 32. Base, 321. Slot, 322. Limiting plate, 3221. Protrusion, 3222. Arc-shaped guide surface, 323. Linear drive component, 33. Drive assembly, 331. Bracket, 332. Hinge rod one, 3321. U-shaped connecting part, 333. Hinge rod two, 334. Cross shaft, 335. Rotation drive component, 336. Elastic component, 4. Hoisting mechanism. Detailed Implementation

[0025] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0027] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] In the description of the embodiments of this application, the term "and / or" is merely a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0030] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0031] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation", "connection", "linking", and "fixing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components.

[0032] Tracked mining vehicles are core auxiliary transportation equipment in underground and open-pit mining operations. Their tracked walking structure offers the advantage of low ground pressure, allowing them to flexibly adapt to complex working conditions such as muddy, soft, steep, and narrow tunnels. They are primarily used for transferring materials such as gangue, equipment, and auxiliary materials. Currently, most mainstream tracked mining vehicles employ a unidirectional tilting design, with the tilting direction often limited to the rear of the vehicle. In scenarios such as narrow underground tunnels, intersections of branch tunnels, and irregular unloading points in open-pit mines, this results in problems such as the need for repeated vehicle position adjustments, cumbersome operation, low unloading efficiency, and even the risk of material rolling and causing injury. This embodiment provides a tracked mining vehicle that, through optimized structural design, enables multi-directional tilting and unloading of the cargo bed, adapting to various complex operating scenarios and improving operational efficiency and safety.

[0033] Please see Figures 1-2This illustration shows the three-dimensional structure of the transport vehicle and the structure of the cargo box in one embodiment of the present invention. The tracked mining transport vehicle of this embodiment includes a body 1, a cargo box 2, and a tipping mechanism 3. The cargo box 2 is mounted on the body 1 via the tipping mechanism 3, and a winch mechanism 4 is also provided at the rear of the body 1. The body 1 serves as the mounting base for the entire equipment, providing support for the cargo box 2, the tipping mechanism 3, and the winch mechanism 4. The tracked walking structure ensures the equipment's mobility in complex mining environments. The cargo box 2 is used to load materials to be transferred. The tipping mechanism 3 drives the cargo box 2 to tip over for unloading. The winch mechanism 4 assists in traction of the body 1 when the equipment encounters difficulties in passage. The tipping mechanism 3 includes a connecting plate 31, a base 32, and a drive assembly 33. The base 32 is mounted on the body 1, the connecting plate 31 is connected to the bottom of the cargo box 2, and the connecting plate 31 is rotatably mounted on the base 32. The drive assembly 33 is mounted on the base 32 and is used to drive the connecting plate 31 to rotate relative to the base 32, thereby causing the cargo box 2 to tip over. Each of the four sides of the connecting plate 31 is equipped with a rotating rod 311. The base 32 has slots 321 corresponding to the four rotating rods 311. A limiting plate 322 is movable on one side of each slot 321. Optionally, the rotating rods 311 and the connecting plate 31 are integral or fixedly connected to each other, ensuring that the rotating rods 311 can move synchronously when the connecting plate 31 rotates. The size of the slots 321 is adapted to the rotating rods 311, which can accommodate the rotating rods 311 and provide them with rotation space. A linear drive component 323 is provided between the base 32 and the vehicle body 1. The linear drive component 323 is used to drive the base 32 to rise and fall, thereby driving the connecting plate 31 and the truck bed 2 to rise and fall synchronously. The linear drive component 323 can be a hydraulic cylinder or an electric push rod, with its two ends fixedly connected to the vehicle body 1 and the base 32, respectively. The lifting and lowering adjustment of the base 32 is achieved through telescopic movement.

[0034] Compared with the prior art, the transport vehicle provided in this embodiment has a rotating rod 311 on the adjacent side of the connecting plate 31 cooperating with the slot 321 of the base 32 and the movable limiting plate 322. Combined with the driving action of the drive component 33, the truck bed 2 can be flipped and unloaded in two adjacent directions, solving the problem of adjusting the vehicle position for a single unloading direction. The limiting plate 322 is movable on one side of the slot 321. The movement of the limiting plate 322 can lock and release the rotating rod 311, completing the switching of the rotation fulcrum of the connecting plate 31. No additional components are needed, simplifying the operation steps. When the connecting plate 31 rotates, there is only one limiting plate 322 pressing the corresponding rotating rod 311 in the slot 321, so that the connecting plate 31 has only one fixed rotation fulcrum each time it flips. This avoids interference from multiple fulcrums or fulcrum offset during the flipping process, ensuring the stability of the driving component 33 when driving the connecting plate 31 to rotate, and thus ensuring the stability of the truck bed 2 during the flipping and unloading process.

[0035] Please see Figures 3-6In some embodiments, the drive assembly 33 includes a bracket 331, a first hinge rod 332, and a second hinge rod 333. The bracket 331 is mounted on the base 32 and located below the connecting plate 31. The bracket 331 is fixed to the base 32 by bolts or welding to ensure the stability of the drive assembly 33 after installation. A cross shaft 334 is horizontally rotatable at the bottom of the connecting plate 31 and the top of the bracket 331. The cross shaft 334 can rotate flexibly in the horizontal direction around its own axis, providing a basis for multi-angle hinges of subsequent components. One end of the first hinge rod 332 and the second hinge rod 333 are hinged to each other, and the other end of each has a U-shaped connecting portion 3321. The U-shaped connecting portion 3321 of the first hinge rod 332 is hinged to the remaining two ends of the cross shaft 334 at the bottom of the connecting plate 31, and the U-shaped connecting portion 3321 of the second hinge rod 333 is hinged to the remaining two ends of the cross shaft 334 at the top of the bracket 331. One end of the hinge rod 332, which is hinged to the cross shaft 334, is driven to be connected to a rotation drive 335. The rotation drive 335 is used to drive the hinge rod 332 to rotate. Optionally, the rotation drive 335 is an electric motor or a hydraulic motor, and its output end is fixedly connected to the hinge rod 332 to ensure that the power can be transmitted stably.

[0036] The transport vehicle provided in this embodiment achieves multi-directional rotational adaptation between hinge rod 1 332 and hinge rod 2 333, between hinge rod 1 332 and connecting plate 31, and between hinge rod 2 333 and bracket 331 through the hinged engagement of cross shaft 334 and U-shaped connecting part. When the rotation drive 335 drives hinge rod 1 332 to rotate, hinge rod 1 332 drives hinge rod 2 333 to move through the hinge point. Hinged rod 2 333 transmits power to connecting plate 31 through cross shaft 334, thereby driving connecting plate 31 to rotate around preset rotation fulcrum. The workflow is as follows: After the limit lock of the rotating rod 311 is completed, the rotating drive 335 is activated. The rotating drive 335 drives the first hinge rod 332 to rotate around its hinge point with the cross shaft 334 at the bottom of the connecting plate 31. During the rotation of the first hinge rod 332, the second hinge rod 333, which is hinged to it, moves. The second hinge rod 333 rotates around its hinge point with the cross shaft 334 at the top of the bracket 331. At the same time, through the rotation adaptation of the cross shaft 334, the relative angle between the first hinge rod 332 and the second hinge rod 333 is adjusted with the movement. The second hinge rod 333 continuously applies force to the connecting plate 31 through the cross shaft 334, driving the connecting plate 31 to rotate around the locked rotating rod 311, thereby driving the truck bed 2 to tilt and unload. After unloading is completed, the rotating drive 335 is controlled to rotate in the opposite direction, and the first hinge rod 332 and the second hinge rod 333 move in opposite directions, driving the connecting plate 31 to rotate in the opposite direction and reset, and the truck bed 2 returns to the initial position.

[0037] Compared with the prior art, in this embodiment, the bracket 331 is positioned below the connecting plate 31, which makes the installation layout of the drive assembly 33 reasonable, does not occupy the space for the tilting of the truck bed 2, and avoids interference with the tilting movement of the truck bed 2 or the connecting plate 31; the hinged cooperation between the cross shaft 334 and the U-shaped connecting part realizes multi-angle rotation adaptation between the components, eliminates stress concentration caused by the deviation of the motion trajectory during the driving process, and improves the motion stability of the drive assembly 33; the hinged structure of the first hinge rod 332 and the second hinge rod 333, together with the setting of the two cross shafts 334, makes the force transmission path of the drive assembly 33 continuous and smooth, and smoothly converts the rotational power of the rotating drive component 335 into the rotational power of the connecting plate 31, improves the driving efficiency, and realizes stable driving of multi-directional unloading.

[0038] Please see Figures 3-6 As a specific embodiment, the circumferential wall of the rotating rod 311 has an annular groove 3111, which extends circumferentially along the rotating rod 311. The annular groove 3111 is provided with a plurality of protrusions 3112 that are spaced apart circumferentially.

[0039] Compared with the prior art, the transport vehicle provided in this embodiment, through the engagement of the protrusion 3221 and the annular groove 3111, restricts the horizontal displacement of the rotating rod 311 along its axial and radial directions when the limiting plate 322 presses against the rotating rod 311 in the groove 321, thereby locking the horizontal position of the rotating rod 311 and ensuring the stability of the fulcrum when the connecting plate 31 rotates around the rotating rod 311. The annular groove 3111 of the rotating rod 311 engages with the protrusion 3221 of the limiting plate 322. Based on the limiting plate 322 pressing against the rotating rod 311, the horizontal position of the rotating rod 311 is further locked, preventing the rotating rod 311 from shifting horizontally during the rotation of the connecting plate 31, and ensuring the accuracy of the rotation fulcrum of the connecting plate 31. The protrusion 3221 is inserted into the annular groove 3111, increasing the contact area and engagement stability between the limiting plate 322 and the rotating rod 311, improving the locking effect of the limiting plate 322 on the rotating rod 311, and preventing the rotating rod 311 from detaching from the constraint of the limiting plate 322 under force.

[0040] Please see Figures 3-6As a specific embodiment, the slot 321 is also provided with an elastic element 336. The elastic element 336 is disposed at the bottom of the slot 321. When the rotating rod 311 is placed into the slot 321, the elastic element 336 abuts against the bottom of the rotating rod 311, providing a force for the rotating rod 311 to move upward toward the limiting plate 322. Optionally, the elastic element 336 is a spring, one end of which is fixed to the bottom of the slot 321, and the other end is freely disposed, ensuring that an elastic restoring force can be generated after being squeezed. The limiting plate 322 has a protrusion 3221 corresponding to the annular groove 3111. The protrusion 3221 can be inserted into the annular groove 3111 when the limiting plate 322 presses against the rotating rod 311. The front end of the limiting plate 322 has an arc-shaped guide surface 3222, which is formed by a smooth transition from the front edge of the limiting plate 322 to the inward side.

[0041] Compared with the prior art, the transport vehicle provided in this embodiment provides an elastic element 336 that provides a force for the rotating rod 311 to move upward toward the limiting plate 322, so that the protrusion 3221 and the protrusion 3112 in the annular groove 3111 maintain a contact tendency. When the connecting plate 31 drives the rotating rod 311 to rotate around its own axis, the protrusion 3112 rotates with the rotating rod 311. The protrusion 3221 intermittently abuts against the spaced protrusions 3112, generating periodic vibration. This vibration is transmitted to the connecting plate 31 and the truck bed 2, assisting the material in the truck bed 2 to fall. The working process is as follows: the limiting plate 322 presses the rotating rod 311 into the slot 321, the protrusion 3221 is engaged in the annular groove 3111, the elastic element 336 abuts against the rotating rod 311 and applies an upward force, so that the protrusion 3112 and the protrusion 3221 remain in contact; the drive assembly 33 is started to drive the connecting plate 31 to rotate, the connecting plate 31 drives the rotating rod 311 to rotate around its own axis, the protrusion 3112 in the annular groove 3111 rotates with the rotating rod 311, the protrusion 3112 and the protrusion 3221 intermittently abut against each other, generating vibration, the vibration is transmitted to the connecting plate 31 and the hopper 2 in sequence, and the material in the hopper 2 is detached from the hopper 2 to complete the unloading. The intermittent contact between the protrusions 3112 and 3221 within the annular groove 3111, combined with the upward force provided by the elastic element 336, causes the rotating rod 311 to vibrate during rotation and transmit the vibration to the hopper 2, thereby achieving the auxiliary feeding function and solving the problem of materials adhering to the inner wall of the hopper 2 and being difficult to detach. The setting of the elastic element 336 ensures that the protrusions 3112 and 3221 always maintain a contact tendency, ensuring the continuity and stability of the vibration and improving the auxiliary feeding effect.

[0042] In addition, in this embodiment, the guiding effect of the arc-shaped guide surface 3222 causes the horizontal moving force to be converted into the downward force of the rotating rod 311 when the limiting plate 322 contacts the rotating rod 311 during the movement, thus guiding the rotating rod 311 into the slot 321 and avoiding interference caused by the rigid collision between the limiting plate 322 and the rotating rod 311.

[0043] Furthermore, the vehicle body 1 can also be equipped with a lifting hook or a swinging bucket. The hook is connected to the vehicle body 1 via a lifting mechanism, and the bucket is connected to the vehicle body 1 via a swinging mechanism. The hook is used to lift small equipment or materials required in mining operations, and the bucket is used to excavate small amounts of bulk material and load them into the truck bed 2, so that the equipment has the functions of transportation, unloading, lifting, or excavation. Both the protrusion 3221 and the protrusion 3112 are hemispherical. The hemispherical structure can reduce the friction when the two come into contact, while ensuring the smoothness of the contact and separation process.

[0044] Compared with the prior art, the transport vehicle provided in this embodiment, by setting rotating rods 311 on the four sides of the connecting plate 31, and cooperating with the four slots 321 of the base 32 and the corresponding limiting plates 322, enables the connecting plate 31 to rotate around any one of the four rotating rods 311, thereby driving the truck bed 2 to flip and unload in four directions, expanding the unloading direction range.

[0045] In summary, when transporting materials, the transport vehicle loads the materials to be transferred into the truck bed 2, and transports the materials to the target unloading area via the tracked walking structure of the vehicle body 1. Upon reaching the unloading area, the corresponding rotating rod 311 is selected according to the unloading direction requirement, and the corresponding limiting plate 322 is moved, causing the limiting plate 322 to move in the direction of the rotating rod 311. During the movement of the limiting plate 322, the arc-shaped guide surface 3222 at its front end first contacts the rotating rod 311. As the limiting plate 322 continues to move, the arc-shaped guide surface 3222 generates a downward component force, pressing the rotating rod 311 down into the slot 321, thus avoiding rigid contact between the limiting plate 322 and the rotating rod 311 and preventing interference.

[0046] When the limiting plate 322 continuously presses the rotating rod 311 to a preset position within the slot 321, the protrusion 3221 on the limiting plate 322 engages with the annular groove 3111 on the circumferential wall of the rotating rod 311. At this time, the elastic element 336 is compressed by the rotating rod 311, generating an upward elastic restoring force, causing the rotating rod 311 to always tend to move upward toward the limiting plate 322. The protrusion 3221 remains in contact with the protrusion 3112 within the annular groove 3111. At this time, the other three limiting plates 322 are all in positions away from their corresponding rotating rods 311, ensuring that they do not interfere with the rotation of the currently selected rotating rod 311.

[0047] The rotation drive 335 is activated, which drives hinge rod 332 to rotate around its hinge point with the bottom cross shaft 334 of the connecting plate 31. During the rotation of hinge rod 332, hinge rod 333, which is hinged to it, moves. Hinged rod 333 rotates around its hinge point with the top cross shaft 334 of the bracket 331. Simultaneously, through the horizontal rotation adaptation of the two cross shafts 334, the relative angle between hinge rod 332 and hinge rod 333 is adjusted in real time with the movement to ensure smooth force transmission. Hinged rod 333 continuously applies force to the connecting plate 31 through the cross shaft 334, driving the connecting plate 31 to rotate around the rotating rod 311 locked by the limiting plate 322. The connecting plate 31 causes the truck bed 2 to flip in the direction of the limiting plate 322.

[0048] As the connecting plate 31 drives the rotating rod 311 to rotate around its own axis, the hemispherical protrusion 3112 in the annular groove 3111 rotates synchronously with the rotating rod 311. The protrusion 3112 intermittently abuts against the hemispherical protrusion 3221 on the limiting plate 322. Due to the action of the elastic element 336, the abutment between the protrusion 3112 and the protrusion 3221 has a certain pressure, and periodic vibration is generated during the intermittent abutment. This vibration is transmitted to the connecting plate 31 through the rotating rod 311, and then to the hopper 2 by the connecting plate 31, which helps the material attached to the wall surface in the hopper 2 to fall off and improve the material feeding efficiency.

[0049] When it is necessary to change the unloading direction, the control rotation drive 335 rotates in the opposite direction, and the first hinge rod 332 and the second hinge rod 333 move in the opposite direction, driving the connecting plate 31 and the bucket 2 to rotate in the opposite direction and reset. Then, the limiting plate 322 that is currently pressing against the rotating rod 311 moves in the opposite direction, causing the protrusion 3221 to disengage from the annular groove 3111. Under the elastic restoring force of the elastic member 336, the rotating rod 311 moves upward, releasing the lock on the rotating rod 311. Then, the limiting plate 322 corresponding to the target direction is moved again, and the above locking steps are repeated. After locking the target rotating rod 311, the rotation drive 335 is activated, so that the bucket 2 can be flipped and unloaded in the new direction.

[0050] When the unloading height needs to be adjusted, the linear drive 323 between the base 32 and the vehicle body 1 is activated. When the linear drive 323 extends, it pushes the base 32 to move upward, and the base 32 drives the connecting plate 31 and the truck bed 2 to rise synchronously. When the linear drive 323 retracts, the base 32 moves downward under its own weight and the weight of the truck bed 2, driving the connecting plate 31 and the truck bed 2 to fall synchronously until the required height is reached. Then the linear drive 323 is stopped, and the unloading operation is carried out.

[0051] When the equipment is difficult to move in complex working conditions such as mud or getting stuck in a pit, start the winch mechanism 4 at the rear of the vehicle body 1, fix the traction end of the winch mechanism 4 to the fixed point at the front, control the winch mechanism 4 to wind the traction rope, generate traction force to assist in moving the vehicle body 1; when it is necessary to adjust the traction direction or release the traction, control the winch mechanism 4 to release the traction end, move the traction end to the new fixed point or retract the traction rope.

[0052] When lifting heavy objects, control the lifting hook on vehicle body 1 to move the hook to the position of the heavy object and secure it. Control the lifting hook to raise the heavy object. After moving vehicle body 1 to the target position, control the lifting hook to lower the heavy object, completing the lifting operation. When excavating materials, control the swinging of the bucket on vehicle body 1 to excavate the material. After excavation, load the material into truck bed 2 for transportation and unloading. When no lifting or excavation is required, keep the hook raised and the bucket retracted to avoid affecting the normal transportation and unloading of truck bed 2.

[0053] In this embodiment, the cross shaft 334 is a connecting component capable of multi-angle transmission. It can rotate flexibly in the horizontal direction around its own axis to accommodate multi-angle relative movements between the hinge rod and the connecting plate 31, and between the hinge rod and the bracket 331. The U-shaped connecting part refers to a connecting structure with a U-shaped end. Its opening size is adapted to the shaft diameter of the cross shaft 334 to realize the hinged engagement between the hinge rod and the cross shaft 334. The linear drive component 323 refers to a drive component capable of linear telescopic movement, such as a hydraulic cylinder or an electric push rod, used to drive the base 32 to rise and fall. The rotation drive component 335 refers to a component capable of outputting rotational power, such as a motor or a hydraulic motor, used to drive the hinge rod 332 to rotate.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of protection of the claims of the present invention.

Claims

1. A tracked mining vehicle, comprising a body (1), a cargo box (2), and a tipping mechanism (3), wherein the cargo box (2) is mounted on the body (1) via the tipping mechanism (3), characterized in that, The flipping mechanism (3) includes a connecting plate (31), a base (32) and a drive assembly (33). The base (32) is disposed on the vehicle body (1). The connecting plate (31) is rotatably disposed on the base (32) and connected to the bottom of the truck bed (2). The drive assembly (33) is disposed on the base (32) and is used to drive the connecting plate (31) to rotate. The drive assembly (33) includes a bracket (331), a first hinge rod (332), a second hinge rod (333), and a cross shaft (334). The bracket (331) is mounted on the base (32) and located below the connecting plate (31). A cross shaft (334) is rotatably provided at the bottom of the connecting plate (31) and at the top of the bracket (331). One end of the first hinge rod (332) and the second hinge rod (333) are hinged to each other, and the other end of each has a U-shaped connecting part (3321). The U-shaped connecting part (3321) of the first hinge rod (332) The U-shaped connecting part (3321) of the second hinge rod (333) is hinged to the cross shaft (334) on the bracket (331), and the cross shaft (334) on the connecting plate (31) is hinged to the cross shaft (334) on the connecting plate (31). The bracket (331) is provided with a rotation drive (335) for driving the first hinge rod (332) to rotate. The rotation drive (335) is used to drive the first hinge rod (332) to rotate. The first hinge rod (332) can drive the connecting plate (31) to rotate through the second hinge rod (333) under the action of the rotation drive (335). The connecting plate (31) has a rotating rod (311) on each of its four sides. The base (32) has a slot (321) that corresponds to the rotating rod (311). Each slot (321) has a moving limiting plate (322) on its side. When any limiting plate (322) limits the corresponding rotating rod (311) to engage in the slot (321), the connecting plate (31) can rotate around the rotating rod (311) engaged in the slot (321) under the action of the driving component (33) to drive the truck bed (2) to flip. When the connecting plate (31) rotates, there is only one limiting plate (322) pressing against the corresponding rotating rod (311) in the slot (321), so that the connecting plate (31) has only one fixed rotation fulcrum each time it flips. The rotating rod (311) has an annular groove (3111) on its peripheral wall, and the limiting plate (322) has a protrusion (3221) that can be engaged in the annular groove (3111). The protrusion (3221) can engage with the annular groove (3111) to lock the rotating rod (311) in the corresponding slot (321).

2. A tracked mining transport vehicle according to claim 1, characterized in that, The annular groove (3111) has several protrusions (3112) spaced out in the circumferential direction. The base (32) is also provided with an elastic element (336). The elastic element (336) can provide an upward force to push the rotating rod (311) so that the rotating rod (311) approaches the limiting plate (322). After the limiting plate (322) presses the rotating rod (311) against the slot (321), the rotating rod (311) can rotate and drive several protrusions (3112) to intermittently hit the protrusion (3221) so that the truck bed (2) vibrates and assists the truck bed (2) in unloading.

3. A tracked mining transport vehicle according to claim 2, characterized in that, The limiting plate (322) can be translated towards the center of the base (32) to limit the rotating rod (311) in the slot (321). The end of the limiting plate (322) near the slot (321) has an arc-shaped guide surface (3222). The arc-shaped guide surface (3222) can press down on the corresponding rotating rod (311) after the limiting plate (322) moves to move into the corresponding slot (321).

4. A tracked mining transport vehicle according to claim 1, characterized in that, A linear drive (323) is provided between the base (32) and the vehicle body (1), and the linear drive (323) is used to drive the base (32) to rise and fall.

5. A tracked mining transport vehicle according to claim 1, characterized in that, The connecting plate (31) has a rotating rod (311) on each of its four sides, and the base (32) has a slot (321) on each of its four sides that corresponds to the rotating rod (311).

6. A tracked mining transport vehicle according to claim 1, characterized in that, The four sides of the base (32) protrude from the edge of the connecting plate (31), and the rotating rod (311) is connected to the bottom of the connecting plate (31) through an extension rod and protrudes outward from the edge of the connecting plate (31).

7. A tracked mining transport vehicle according to claim 1, characterized in that, The base (32) is frame-shaped, and the bracket (331) is located in the middle of the inner side of the base (32).

8. A tracked mining transport vehicle according to claim 1, characterized in that, The rear of the vehicle body (1) is also provided with a winch mechanism (4), which is used to assist in traction of the vehicle body (1) to move.

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