A mobile unloading vehicle and a method of operation thereof

Abstract

The application provides a mobile unloading vehicle and a working method thereof, and relates to the field of mobile unloading vehicles.The adopted scheme is: including a vehicle frame and a conveying frame, a conveying belt is arranged on the conveying frame, a supporting frame is arranged on the vehicle frame in an inclined manner, the supporting frame comprises a transition part, the transition part is close to the conveying frame, a transition roller assembly is arranged on the transition part, the transition roller assembly comprises a bracket one, the bracket one is arranged on the transition part in a lifting manner, a horizontal roller one is arranged on the bracket one in a rotating manner, and inclined rollers one are arranged at the two ends of the horizontal roller one in a rotating manner.The application can reduce the shaking, deviation and collapse in the transition area of the belt, and even the stacking phenomenon, so that the conveying belt can stably convey materials.

Description

Technical Field

[0001] This invention relates to the field of mobile unloading vehicles, and more particularly to a mobile unloading vehicle and its operating method. Background Technology

[0002] The mobile unloading vehicle includes a walking drive mechanism, a belt conveyor system, an unloading device, a frame support structure, and an electrical control system. These components work together to achieve the functions of movement and unloading. The electrical control system controls the walking mechanism, which, in conjunction with position sensors, moves the equipment precisely to the designated unloading point. It then receives bulk materials conveyed by upstream equipment. The drive rollers of the belt conveyor system drive the conveyor belt to smoothly transport the material to the unloading hopper. Finally, the material is directionally unloaded into a silo, stockpile, or downstream equipment via the unloading hopper and chute. If the unloading position needs to be changed, the movement and positioning steps can be repeated.

[0003] The belt undergoes a process of changing from a horizontal state to a climbing state. At the same time, since the frame support structure needs to move across the belt conveyor system, the idler assembly on the frame support structure used to support the belt climbing needs to be positioned higher than the idler assembly on the lower belt conveyor system used to support the belt horizontally, in order to avoid interference during the movement of the frame support structure.

[0004] Because the idler rollers used for belt climbing support are set too high, the belt in the transition zone from horizontal to climbing is not supported when moving. When the unloading vehicle starts, the driving torque is coupled through the friction between the idler rollers and the belt, generating a large longitudinal impact and tension on the belt surface. This, combined with the additional tension required for the bending stiffness of the transition zone and the dynamic load of the falling material, results in uneven force in the belt width direction, which easily triggers lateral instability. This manifests as belt deviation and collapse or even belt overlap in the transition zone, causing damage to the belt and spillage of material. Summary of the Invention

[0005] To address the technical problems of vibration, misalignment, and belt overlap in the transition area of ​​mobile unloading vehicles in the prior art, this invention provides a mobile unloading vehicle and its operating method, which can reduce belt misalignment, collapse, and even belt overlap in the transition area, ensuring stable material transport by the conveyor belt.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a mobile unloading vehicle, including a frame and a conveyor frame, a conveyor belt is provided on the conveyor frame, a support frame is inclinedly provided on the frame, the support frame includes a transition part, the transition part is close to the conveyor frame, a transition idler assembly is provided on the transition part, the transition idler assembly includes a bracket, the bracket is vertically disposed on the transition part, a horizontal idler is rotatably disposed on the bracket, and inclined idlers are rotatably disposed at both ends of the horizontal idler.

[0007] This invention arranges liftable transition idler assemblies in the transition section of the support frame, enabling the conveyor belt to obtain continuous, adjustable, and stable multi-point support and guidance in the transition area. The horizontal idler bears the main load, while the inclined idler provides edge centripetal constraint. With the lifting adjustment, it can quickly adapt to different loads and working conditions, thereby effectively reducing conveyor belt deviation, collapse, and overlap, and improving the smoothness of conveyor belt operation and the reliability of material transfer.

[0008] Furthermore, the support frame includes two support beams arranged opposite each other, and a limit plate is vertically arranged on the support beam of the transition part. The limit plate has a C-shaped structure. The bracket includes a support plate. Sliding plates are respectively arranged at both ends of the support plate. The sliding plates are arranged in the cavity of the limit plate and are slidably connected to the limit plate. A lifting drive component is connected to one end of the bracket.

[0009] The present invention can guide the bracket by setting a limiting plate, thus ensuring the stable lifting and lowering of the bracket.

[0010] Furthermore, the lifting drive component adopts a hydraulic cylinder with a built-in displacement sensor.

[0011] This invention uses a hydraulic cylinder to provide lifting power, enabling it to bear a large load and ensuring the reliability of the adjustment.

[0012] Furthermore, the lower end of the sliding plate is connected to the first support plate, the piston rod of the lifting drive is connected to the limiting plate, the cylinder of the lifting drive is connected to the sliding plate, and the first support plate is located below the limiting plate.

[0013] By inverting the lifting drive component, this invention reduces the space occupied in the lower part of the conveyor belt, allowing the pallet to descend to a sufficiently low position, thereby expanding the lifting range of the transition roller assembly and enhancing its support for the conveyor belt.

[0014] Furthermore, the support frame also includes a climbing section, which is equipped with an anti-deviation roller assembly. The anti-deviation roller assembly includes a bracket two, on which a horizontal roller two is rotatably mounted. Anti-deviation frames are provided at both ends of the horizontal roller two, and inclined roller two is rotatably mounted on the anti-deviation frames. The end of the anti-deviation frame near the horizontal roller two is hinged to the bracket two, and the end of the anti-deviation frame away from the horizontal roller two is connected to the bracket two with an anti-deviation driving member. The anti-deviation driving member can drive the anti-deviation frame to rotate in a vertical plane.

[0015] This invention, by setting up an anti-deviation idler assembly, can adjust the tilt angle of the two square frames according to the deviation of the conveyor belt or material, change the conveying shape of the conveyor belt, correct the deviation of the conveyor belt or material, and reduce material spillage.

[0016] Furthermore, the anti-deviation drive component is a hydraulic cylinder with a built-in position sensor. The cylinder body of the anti-deviation drive component is hinged to the bracket, and the piston rod of the anti-deviation drive component is hinged to the anti-deviation frame.

[0017] Furthermore, a limit frame is provided at the end of the transition section near the conveyor frame. The limit frame has a U-shaped structure and two telescopic members are provided on the limit frame. A limit wheel is rotatably provided at the lower part of the telescopic member. The limit wheel is located on the upper part of the conveyor belt and can generate friction with the material on the conveyor belt.

[0018] This invention uses limiting wheels to laterally limit and guide the material and belt edge, restricting the lateral freedom and serpentine movement tendency of the conveyor belt, avoiding conveyor belt deviation and belt stacking caused by edge accumulation due to uneven loading or insufficient guidance, and improving the running stability of the transition zone.

[0019] Furthermore, it also includes an electrically connected controller and a conveying module. The controller is electrically connected to the lifting drive, the anti-deviation drive, and the telescopic component. The transition section is also equipped with an image acquisition module, which is electrically connected to the controller. The image acquisition module is capable of acquiring the position information of the conveyor belt, the position information of the material, the amount of material spillage, and the status information of the conveyor belt in the transition section.

[0020] Secondly, the present invention also provides a method for operating a mobile unloading vehicle, which, using the aforementioned mobile unloading vehicle, includes the following steps:

[0021] S01: Input material type:

[0022] S02: Adjust the height of bracket one and the tilt angle of the anti-deviation frame according to the material type to enhance the support of the belt at the transition section and reduce material spillage;

[0023] S03: Conveyor belt transports materials;

[0024] S04: When the amount of material spillage exceeds the set threshold, the tilt angle of the anti-deviation frame is dynamically adjusted. When the conveyor belt is found to be collapsing and vibrating in the transition zone, the height of the bracket and the limit wheel is dynamically adjusted.

[0025] This invention reduces reliance on manual intervention through a pre-set and online feedback closed-loop process, taking into account the stability and efficiency of different materials and working conditions, and helps to reduce wear and maintenance costs.

[0026] Furthermore, before S01, it is necessary to conduct experiments to obtain the anti-deviation frame tilt angle corresponding to the minimum spillage amount of each material, and to obtain the height of bracket one corresponding to the stable state of the conveyor belt for each material, so as to form a material-conveyor belt direction model and store it in the controller.

[0027] This invention obtains the correspondence between the "minimum spillage amount - anti-deviation frame tilt angle" and the "stable state - bracket height" of each material in advance through experiments, and stores the optimal setting value in the controller. This allows the mobile unloading vehicle to be used normally without repeated on-site trials, significantly reducing debugging time and trial and error costs.

[0028] As can be seen from the above technical solutions, the present invention has the following advantages:

[0029] This invention provides a mobile unloading vehicle and its operating method. By setting a transition section on the inclined support frame of the chassis and arranging a liftable transition idler assembly there, the conveyor belt obtains continuous, adjustable, and stable multi-point support and guidance in the transition area. The horizontal idler bears the main load, while the inclined idler provides edge centripetal constraint. Combined with lifting adjustment, it can quickly adapt to different loads and working conditions, thereby effectively reducing conveyor belt deviation, sagging, and overlapping phenomena, improving the smoothness of conveyor belt operation and the reliability of material transfer. A limit plate guides the support frame, ensuring stable lifting. The use of a hydraulic cylinder to provide lifting power allows for the bearing of larger loads, ensuring the reliability of adjustment. By inverting the lifting drive component, the space occupied below is reduced, allowing the support plate to descend to a sufficiently low position, expanding the lifting range of the transition idler assembly and improving the support for the conveyor belt. Support function; by setting anti-deviation idler components, the tilt angle of the two square frames can be adjusted according to the deviation of the conveyor belt or materials, changing the conveyor belt's conveying shape, correcting the deviation of the conveyor belt or materials, and reducing material spillage; the limit wheels form lateral limits and guides for materials and belt edges, restricting the lateral freedom and serpentine movement tendency of the conveyor belt, avoiding conveyor belt deviation and edge accumulation caused by uneven loading or insufficient guidance, and improving the smoothness of operation in the transition zone; the closed-loop process that can be preset and fed back online reduces the reliance on manual intervention, takes into account the stability and efficiency of different materials and working conditions, and helps to reduce wear and maintenance costs; by testing, the correspondence between "minimum spillage - anti-deviation frame tilt angle" and "stable state - bracket height" for each material is obtained in advance, and the optimal setting value is stored in the controller, so that the system does not need to be repeatedly tested on site, significantly shortening the debugging time and trial and error costs. Attached Figure Description

[0030] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying 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.

[0031] Figure 1 This is a partial structural diagram of an embodiment of the present invention.

[0032] Figure 2 This is a schematic diagram of the transition idler assembly in Embodiment 1 of the present invention. Figure 1 .

[0033] Figure 3 This is a schematic diagram of the transition idler assembly in Embodiment 1 of the present invention. Figure 2 .

[0034] Figure 4 This is a schematic diagram of the assembly structure of the bracket, the limiting plate, and the lifting drive component in Embodiment 1 of the present invention.

[0035] Figure 5 This is a schematic diagram of the anti-deviation idler assembly in Embodiment 1 of the present invention.

[0036] Figure 6 This is a schematic diagram of the assembly structure of the limiting frame and the limiting wheel in Embodiment 1 of the present invention.

[0037] In the diagram, 1. Conveyor frame; 2. Conveyor belt; 3. Transition idler assembly; 4. Support beam; 5. Anti-deviation idler assembly; 6. Chassis; 7. Transition section; 8. Climbing section; 9. Support frame; 10. Lifting drive component; 11. Sliding plate; 12. Inclined idler one; 13. Horizontal idler one; 14. Pallet one; 15. Bracket two; 16. Anti-deviation frame; 17. Horizontal idler two; 18. Inclined idler two; 19. Anti-deviation drive component; 20. Mounting base; 21. Dustproof brush strip; 22. Reinforcing rib plate; 23. Base plate; 24. Limiting frame; 25. Telescopic component; 26. Limiting wheel; 27. Image acquisition module; 28. Bracket one; 29. ​​Limiting plate. Detailed Implementation

[0038] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0039] Example 1

[0040] like Figures 1 to 4As shown in the figure, this specific embodiment provides a mobile unloading vehicle, including a frame 6 and a conveyor frame 1. A conveyor belt 2 is provided on the conveyor frame 1. A support frame 9 is inclinedly provided on the frame 6. The support frame 9 includes a transition section 7. The transition section is close to the conveyor frame 1. A transition idler assembly is provided on the transition section 7. The transition idler assembly includes a bracket 28. The bracket 28 is vertically and vertically disposed on the transition section 7. A horizontal idler 13 is rotatably disposed on the bracket 28. An inclined idler 12 is rotatably disposed at both ends of the horizontal idler 13. The horizontal idler 13 and the inclined idler 12 can be supported by rolling friction with the lower surface of the conveyor belt 2. In this embodiment, multiple transition idler assemblies 3 are evenly arranged along the length direction of the transition section 7. The distance between two adjacent transition idler assemblies 3 is 502mm~600mm.

[0041] In this embodiment, by arranging a liftable transition roller assembly in the transition section 7 of the support frame 9, the conveyor belt 2 obtains continuous, adjustable and stable multi-point support and guidance in the transition area, which improves the situation of insufficient support and uneven force in the transition section 7. In addition, with the lifting adjustment, it can adapt to different loads and working conditions of the conveyor belt 2, thereby effectively reducing the phenomena of belt deviation, collapse and belt overlap of the conveyor belt 2, and improving the smoothness of the operation of the conveyor belt 2 and the reliability of material transfer.

[0042] To achieve stable support for the transition idler assembly 3, such as Figures 2 to 4As shown, in this embodiment, the support frame 9 includes two opposing support beams 4. A limiting plate 29 is vertically arranged on the support beams 4 of the transition part 7. The limiting plate 29 has a C-shaped structure. A base plate 23 is welded to the lower part of the limiting plate 29. A reinforcing rib plate 22 is provided between the base plate 23 and the limiting plate 29. The base plate 23 is connected to the support beams 4 by bolts. The bracket 28 includes a support plate 14. Sliding plates 11 are respectively provided at both ends of the support plate 14. The sliding plates 11 are disposed in the cavity of the limiting plate 29. The cross-section of the 1 has a T-shaped structure. The sliding plate 11 and the limiting plate 29 are slidably connected by a slide rail. The sliding plate 11 is provided with corresponding slide grooves. To prevent dust from entering the limiting plate 29 and causing jamming, a dustproof brush strip 21 is provided on the upper part of the limiting plate 29. A portion of the dustproof brush strip 21 can protrude into the slide groove of the sliding plate 11. The end of the bracket 28 is connected to a lifting drive component 10. Since the load of the conveyor belt 2 is large and is a dynamic load, in order to improve the support capacity of the lifting drive component 10, in this embodiment, the lifting drive component 10... A hydraulic cylinder is used. To improve the accuracy of displacement control, a displacement sensor is built into the hydraulic cylinder. Specifically, a mounting base 20 is bolted to the top of the sliding plate 11, and the cylinder body of the hydraulic cylinder is bolted onto the mounting base 20. To provide sufficient descent space for the bracket 28 and enhance the support for the conveyor belt 2 at the transition section 7, the lower end of the sliding plate 11 is connected to the bracket 14. The lifting drive component 10 is inverted, and the piston rod of the lifting drive component 10 is connected to the limiting plate 29. The cylinder body of the lifting drive component 10 is connected to the limiting plate 29. The sliding plate 11 is connected, and the support plate 14 is located below the limiting plate 29. With this arrangement, the lifting drive component 10 does not occupy the space below the support bracket 28, allowing the support bracket 28 to descend to a position close to the conveyor frame 1, thereby enhancing the support for the conveyor belt 2. In order to reduce the impact of dust on the hydraulic cylinder, a telescopic hose is sleeved on the outside of the piston rod of the hydraulic cylinder. The telescopic hose is made of rubber and is also connected to the cylinder body. When the cylinder body of the lifting drive component 10 moves upward, it drives the sliding plate 11 to move upward, thereby raising the height of the support bracket 28.

[0043] like Figure 1 and Figure 5As shown, the support frame 9 also includes a climbing section 8, which is equipped with multiple idler roller assemblies to support the conveyor belt 2. When the conveyor belt 2 runs along the climbing section, the gravitational component of the material will act downward along the slope. In addition, due to the structural characteristics of the mobile unloading vehicle, the material on the conveyor belt 2 will deviate, causing spillage from one side of the conveyor belt 2, increasing the cleaning workload. To solve the problem of spillage during the climbing process, in this embodiment, the idler roller assembly is improved into an anti-deviation idler roller assembly 5. The anti-deviation idler roller assembly 5 includes a bracket 2 15, which has an inverted U-shaped structure. Both ends of the bracket 2 15 are bolted to the climbing section 8 of the support frame 9. A horizontal idler roller 2 17 is rotatably mounted on the bracket 2 15. Anti-deviation frames 16 are provided at both ends of the horizontal idler roller 2 17. An inclined idler roller 2 18 is rotatably mounted on the anti-deviation frame 16. The end of the anti-deviation frame 16 near the horizontal idler roller 2 17 is connected to the bracket 2 15 by a hinge seat. The anti-deviation frame 16 is hinged, and an anti-deviation drive component 19 is connected between the end of the anti-deviation frame 16 away from the horizontal idler roller 17 and the bracket 15. The anti-deviation drive component 19 can drive the anti-deviation frame 16 to rotate in the vertical plane. The anti-deviation drive component 19 is a hydraulic cylinder with a built-in position sensor. The cylinder body of the anti-deviation drive component 19 is hinged to the bracket 15, and the piston rod of the anti-deviation drive component 19 is hinged to the anti-deviation frame 16. With this configuration, when the material deviates, the position of the support point on the side of the conveyor belt 2 is changed by adjusting the tilt angle of the anti-deviation frames 16 on both sides, thereby changing the shape of the conveyor belt 2 and changing the distribution position of the material on the conveyor belt 2, so that the material moves towards the center of the conveyor and reduces spillage. For example, when spillage occurs on the left side of the conveyor belt 2, the anti-deviation frame 16 on the left side is raised to increase the tilt of the left side of the conveyor belt 2, forcing the material to move to the right and reducing spillage on the left side. The reverse is also true.

[0044] When the mobile unloading vehicle is working, the feeding end of conveyor belt 2 receives the impact load of falling material, and the front end receives the tension of the drive motor. The tension is unevenly distributed in the width direction, and the resultant force in the width direction is no longer zero, resulting in a tendency for belt misalignment driven by lateral force. Conveyor belt 2 adjusts back and forth between misalignment and return to center, causing vibration. To improve this phenomenon, such as... Figure 1 and Figure 6As shown, in this embodiment, a limiting frame 24 is also provided at the end of the transition section 7 near the conveyor frame 1. The limiting frame 24 has a U-shaped structure, and its two ends are welded to the corresponding support beams 4. Two telescopic members 25 are vertically arranged on the limiting frame 24. A limiting wheel 26 is rotatably arranged at the lower part of the telescopic member 25. The limiting wheel 26 is located on the upper part of the conveyor belt 2 and can generate friction with the material on the conveyor belt 2. In this embodiment, the telescopic member 25 is an electric telescopic rod. After this arrangement, the limiting wheel 26 and the material on the conveyor belt 2 are rubbed together. The material on the conveyor belt 2 comes into contact with each other and generates friction, which is equivalent to increasing the resistance to the lateral movement of the conveyor belt 2. This resistance can absorb the speed fluctuations caused by changes in the support stiffness of the transition area, sudden load changes, or speed switching, weakening the resulting periodic excitation and thus reducing the vibration amplitude. At the same time, the amount of pressure and the height of the point of action of the limiting wheel 26 can be adjusted by the telescopic component 25 to match the conveying of different materials. According to the size of the support frame 9, multiple limiting frames 24 can be set. In this embodiment, two limiting wheels 26 and two telescopic components 25 are set respectively, and the distance between the two limiting wheels 26 is less than the bandwidth.

[0045] To achieve closed-loop control and intelligent adjustment, this embodiment also includes an electrically connected controller and conveying module. The controller is electrically connected to the lifting drive 10, the anti-deviation drive 19, and the telescopic component 25. The transition section 7 is also equipped with an image acquisition module 27, which is electrically connected to the controller. The image acquisition module 27 can acquire the position information of the conveyor belt 2, the position information of the material, the amount of material spillage, and the state information of the conveyor belt 2 in the transition section 7. In this embodiment, the image acquisition module 27 includes a vision camera. The vision camera transmits the acquired image information back to the controller. The controller determines whether there is a phenomenon of conveyor belt 2 deviation, excessive material spillage, or unstable state of conveyor belt 2 based on the image information. Unstable state of conveyor belt 2 includes phenomena such as vibration, belt overlap, and collapse in the transition section 7. Multiple vision cameras can be set according to the size of the support frame 9.

[0046] The traveling mechanism, unloading device and other structures of the frame 6 are the same as those in the prior art and will not be described in detail in this article. The conveyor frame 1 is also equipped with multiple horizontally supported roller assemblies to support the horizontal conveying of the conveyor belt 2.

[0047] Example 2

[0048] This embodiment provides a method for operating a mobile unloading vehicle, using the mobile unloading vehicle from Embodiment 1, including the following steps:

[0049] S01: Input material type:

[0050] S02: Adjust the height of bracket 28 and the tilt angle of anti-deviation bracket 16 according to the material type to enhance the support of the belt at the transition section 7 and reduce material spillage.

[0051] S03: Conveyor belt 2 transports materials;

[0052] S04: When the amount of material spillage exceeds the set threshold, the tilt angle of the anti-deviation frame 16 is dynamically adjusted. When the conveyor belt 2 is found to have collapse and vibration in the transition zone, the height of the bracket 28 and the limit wheel 26 is dynamically adjusted.

[0053] In this embodiment, after identifying the material type, the height of bracket 28 and the tilt angle of anti-deviation frame 16 are first adjusted to match the working condition, so that the support stiffness and guiding constraint of transition section 7 are matched with the material characteristics. When the spillage exceeds the standard during operation, the contact angle between the material landing point and the belt surface can be changed instantly by dynamically fine-tuning the tilt angle of anti-deviation frame 16, reducing lateral impact and enhancing edge constraint, and quickly converging the spillage trend. When collapse or vibration of transition section 7 is detected, the height of bracket 28 and limit wheel 26 are adjusted in linkage. On the one hand, the lower position supports the conveyor belt 2, enhancing the support of the conveyor belt 2 and preventing further collapse or even belt overlap. On the other hand, the rolling contact of limit wheel 26 provides controllable lateral guidance and resistance, suppressing lateral vibration and edge rebound, and ensuring stable conveying of conveyor belt 2 in transition section 7. This embodiment reduces the reliance on manual intervention through a closed-loop process of pre-setting and online feedback, which helps to improve the stability and reliability of conveying and helps to reduce wear and maintenance costs.

[0054] Before S01, various material conveying tests need to be conducted. By manually controlling and adjusting the height of each bracket 28 and the tilt angle of the anti-deviation frame, material spillage is reduced and the unstable conveying state of the conveyor belt 2 is improved. This allows for obtaining the minimum spillage amount of each material and the corresponding tilt angle of the anti-deviation frame 16, as well as the height of the bracket 28 corresponding to the stable state of the conveyor belt 2 under each material. This forms a material-conveyor belt 2 path model, which is stored in the controller. During normal operation, the relevant data can be directly called for adjustment, eliminating the need for repeated on-site trials when the mobile unloading vehicle is in normal use, significantly reducing debugging time and trial-and-error costs.

[0055] When the mobile unloading vehicle is moving, in order to avoid interference between the transition roller assembly 3 at the lowest position and the conveyor support, one or more brackets 28 at the lower end of the transition section 7 can be raised when the frame 6 is moving to avoid interference; when the frame 6 stops moving and unloading is carried out, the position of one or more brackets 28 at the lower end of the transition section 7 can be lowered to the set position to facilitate the stable conveying of materials by the conveyor belt 2.

[0056] As can be seen from the above specific embodiments, the present invention has the following beneficial effects:

[0057] 1. By setting a transition section 7 on the inclined support frame 9 of the frame and arranging a liftable transition idler assembly there, the conveyor belt 2 can obtain continuous, adjustable and stable multi-point support and guidance in the transition area. The horizontal idler 13 bears the main load, and the inclined idler 12 provides edge centripetal constraint. With the lifting adjustment, it can quickly adapt to different loads and working conditions, thereby effectively reducing the deviation, collapse and overlap of the conveyor belt 2, and improving the smoothness of the conveyor belt 2 operation and the reliability of material transfer.

[0058] 2. The limit plate 29 can guide the bracket 28, ensuring the stable lifting and lowering of the bracket 28; the use of hydraulic cylinders to provide lifting power can bear a large load, ensuring the reliability of adjustment;

[0059] 3. By inverting the lifting drive component 10, the space occupied in the lower part can be reduced, allowing the pallet 14 to descend to a sufficiently low position, expanding the lifting range of the transition roller assembly 3, and enhancing the support for the conveyor belt 2.

[0060] 4. By setting the anti-deviation idler assembly 5, the tilt angle of the two square frames can be adjusted according to the deviation of the conveyor belt 2 or the material, thereby changing the conveying shape of the conveyor belt 2, correcting the deviation of the conveyor belt 2 or the material, and reducing the spillage.

[0061] 5. The limiting wheels 26 form lateral limiting and guiding for the material and belt edge, restricting the lateral freedom and serpentine movement tendency of the conveyor belt 2, avoiding belt deviation and belt stacking caused by edge accumulation due to uneven loading or insufficient guidance, and improving the running stability of the transition zone.

[0062] 6. Through a closed-loop process of pre-setting and online feedback, the reliance on manual intervention is reduced, ensuring the stable and reliable conveying of conveyor belt 2;

[0063] 7. By conducting experiments, the correspondence between the "minimum spillage amount - anti-deviation frame 16 tilt angle" and the "stable state - bracket - 28 height" for each material is obtained in advance. The optimal setting value is stored in the controller, so that the system does not need to be repeatedly tested, significantly shortening the debugging time and trial and error cost.

[0064] 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. Therefore, the 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 mobile unloading vehicle, comprising a frame (6) and a conveyor frame (1), wherein a conveyor belt (2) is provided on the conveyor frame (1), characterized in that, A support frame (9) is inclinedly arranged on the frame (6). The support frame (9) includes a transition section (7) which is close to the conveyor frame (1). A transition roller assembly (3) is arranged on the transition section (7). The transition roller assembly (3) includes a bracket (28). The bracket (28) is vertically arranged on the transition section (7). A horizontal roller (13) is rotatably arranged on the bracket (28). Inclined rollers (12) are rotatably arranged at both ends of the horizontal roller (13). The support frame (9) includes two support beams (4) arranged opposite to each other. A limit plate (29) is vertically arranged on the support beam (4) of the transition part (7). The limit plate (29) has a C-shaped structure. The bracket (28) includes a support plate (14). Sliding plates (11) are respectively arranged at both ends of the support plate (14). The sliding plates (11) are arranged in the cavity of the limit plate (29). The sliding plates (11) are slidably connected to the limit plate (29). A lifting drive component (10) is connected to the end of the bracket (28). The support frame (9) also includes a climbing part (8), which is provided with an anti-deviation roller assembly (5). The anti-deviation roller assembly (5) includes a bracket (15), on which a horizontal roller (17) is rotatably mounted. Anti-deviation frames (16) are provided at both ends of the horizontal roller (17), and an inclined roller (18) is rotatably mounted on the anti-deviation frame (16). The end of the anti-deviation frame (16) near the horizontal roller (17) is hinged to the bracket (15). An anti-deviation drive (19) is connected between the end of the anti-deviation frame (16) away from the horizontal roller (17) and the bracket (15). The anti-deviation drive (19) can drive the anti-deviation frame (16) to rotate in the vertical plane. The transition section (7) is also provided with a limit frame (24) near the end of the conveyor frame (1). The limit frame (24) has a gate-shaped structure and two telescopic members (25) are provided on the limit frame (24). The lower part of the telescopic member (25) is provided with a limit wheel (26). The limit wheel (26) is located on the upper part of the conveyor belt (2). The limit wheel (26) can generate friction with the material on the conveyor belt (2). It also includes a controller, which is electrically connected to the lifting drive (10), the anti-deviation drive (19) and the telescopic component (25). The transition section (7) is also provided with an image acquisition module (27), which is electrically connected to the controller. The image acquisition module (27) can acquire the position information of the conveyor belt (2), the position information of the material, the amount of material spillage, and the status information of the conveyor belt (2) in the transition section (7). Through experiments, the tilt angle of the anti-deviation frame (16) corresponding to the minimum spillage of each material was obtained, and the height of the bracket (28) corresponding to the stable state of the conveyor belt (2) for each material was obtained, forming a material-conveyor belt direction model, which was stored in the controller.

2. The mobile unloading vehicle as described in claim 1, characterized in that, The lifting drive component (10) is a hydraulic cylinder with a built-in displacement sensor.

3. The mobile unloading vehicle as described in claim 2, characterized in that, The lower end of the sliding plate (11) is connected to the first support plate (14), the piston rod of the lifting drive (10) is connected to the limiting plate (29), the cylinder of the lifting drive (10) is connected to the sliding plate (11), and the first support plate (14) is located below the limiting plate (29).

4. The mobile unloading vehicle as described in claim 3, characterized in that, The anti-deviation drive (19) is a hydraulic cylinder with a built-in position sensor. The cylinder body of the anti-deviation drive (19) is hinged to the bracket (15), and the piston rod of the anti-deviation drive (19) is hinged to the anti-deviation frame (16).

5. A method for operating a mobile unloading vehicle, characterized in that, The mobile unloading vehicle as described in claim 4 includes the following steps: S01: Enter the material type; S02: Adjust the height of bracket 1 (28) and the tilt angle of anti-deviation bracket (16) according to the material type to enhance the support of the belt at the transition section (7) and reduce material spillage; S03: Conveyor belt (2) conveys materials; S04: When the amount of material spilled exceeds the set threshold, the tilt angle of the anti-deviation frame (16) is dynamically adjusted. When the conveyor belt (2) is found to have collapse and vibration in the transition zone, the height of the bracket (28) and the limit wheel (26) is dynamically adjusted.

Images