Transportation equipment

Abstract

The invention relates to the technical field of road construction, and discloses transportation equipment which comprises a vehicle body, a stirring device and a first driving device, a compartment is arranged on the vehicle body, the stirring device comprises at least one stirring assembly arranged in the compartment, a stirring shaft of the stirring assembly extends in the length direction of the compartment, and the first driving device is connected with the stirring assembly. The driving assembly is used for driving the stirring assembly to rotate and linearly pushing the asphalt mixture stirred by the stirring assembly in the first direction, and the pressure reducing devices are arranged on the upper portion of the stirring assembly at intervals and used for dispersing pressure of the mixture on the stirring assembly. Through the arrangement of the stirring assembly and the first driving device for driving the stirring assembly to rotate and linearly pushing the mixture to move in the first direction, the mixture can be continuously and fully stirred and pushed in the loading, transporting and unloading processes, and the paving smoothness and uniformity are improved; the pressure reducing device disperses the pressure of the mixture on the stirring assembly, the service life is prolonged, and the operation efficiency and reliability of the equipment are improved.

Description

Technical Field

[0001] This invention relates to the field of road construction technology, and more particularly to a transportation device. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] Asphalt pavement is widely used in highway construction due to its excellent performance, but segregation during construction seriously affects pavement quality. Segregation leads to problems such as reduced pavement smoothness and shortened service life. Especially in the unloading process, the traditional unloading method of raising and tilting the truck bed causes significant movement of the asphalt mixture, resulting in severe segregation and posing safety hazards.

[0004] Currently, common methods for solving segregation problems have many shortcomings: First, adding a transfer vehicle for secondary mixing can improve segregation, but it is costly, complex to construct, requires a large space, and has the risk of cooling and equipment failure; Second, using scraper or conveyor belt transport vehicles can alleviate segregation during unloading, but cannot eliminate segregation during loading and transportation. Summary of the Invention

[0005] The objective of this invention is to at least solve the problem of segregation in asphalt mixtures during loading, transportation, and unloading. This objective is achieved through the following technical solution:

[0006] This invention proposes a transportation device, comprising:

[0007] The vehicle body has a cargo compartment for holding asphalt mixture.

[0008] A stirring device includes at least one stirring component, the stirring component being disposed inside the carriage, and the stirring shaft of the stirring component extending along a first direction, the first direction being the length direction of the carriage;

[0009] A first driving device, wherein the driving end of the first driving device is connected to one end of the mixing assembly, the first driving device is used to drive the mixing assembly to rotate and to push the asphalt mixture mixed by the mixing assembly in a straight line along the first direction;

[0010] Pressure reducing devices are spaced apart on the upper part of the mixing assembly, and the pressure reducing devices are used to disperse the pressure of the asphalt mixture on the mixing assembly.

[0011] The transportation equipment of the present invention, by setting at least one mixing component with a mixing shaft extending along the length of the carriage, and a first driving device that drives the mixing component to rotate and pushes the asphalt mixture to move in a straight line along a first direction, can continuously and fully mix and push the asphalt mixture throughout the entire process of loading, transportation and unloading, thereby improving the mixing effect and efficiency. It not only effectively solves the problem of segregation of the mixture during the loading, transportation and unloading stages, but also can deliver the mixture more evenly into the paver, providing the paver with a more uniform asphalt mixture continuously and uninterruptedly, thereby improving the smoothness and uniformity of paving, comprehensively improving the overall performance of asphalt pavement construction, extending the service life of the pavement, and ensuring the continuity and stability of construction, improving construction efficiency and reducing construction costs. In addition, it can also improve construction safety and reduce potential risks caused by equipment failure and mixture cooling. By setting up a pressure-reducing device, the pressure of the mixture on the mixing components can be effectively dispersed, reducing the impact and vibration on the mixing components during operation, extending their service life, improving the operating efficiency and reliability of the equipment, and enhancing the safety of the construction process. In addition, the pressure-reducing device can also divert the asphalt mixture in the upper part, so that the mixture can be more evenly distributed around the mixing components during the mixing process, improving the uniformity and efficiency of mixing.

[0012] In addition, the transport equipment according to the present invention may also have the following additional technical features:

[0013] In some embodiments of the present invention, the stirring device includes a plurality of stirring components, which are spaced apart in the carriage along a second direction perpendicular to the first direction.

[0014] In some embodiments of the present invention, the stirring assembly includes a stirring shaft and helical blades connected to the stirring shaft, the helical blades extending helically along the length direction of the stirring shaft.

[0015] In some embodiments of the present invention, the pressure reducing device includes a frame and pressure reducing components disposed on the frame. An installation space is formed in the frame, and the stirring assembly is disposed in the installation space. The pressure reducing components are spaced apart on the upper part of the stirring assembly along a third direction, which is the height direction of the carriage.

[0016] In some embodiments of the present invention, there are multiple pressure-reducing components, and the multiple pressure-reducing components are spaced apart on the frame along the first direction.

[0017] In some embodiments of the present invention, the pressure-reducing member is a truncated cone structure that protrudes from the side near the frame to the side away from the frame.

[0018] In some embodiments of the present invention, the transport equipment further includes a cover plate, one end of which is connected to the inner wall of the carriage. The cover plate is openable and closeable relative to the bottom wall of the carriage. When the cover plate is closed, it is located above the pressure relief device and extends along the first direction.

[0019] In some embodiments of the present invention, the carriage includes a floor and inclined plates connected to both sides of the floor, wherein the two inclined plates are inclined relative to the height direction of the carriage in a direction of mutual proximity toward one end of the floor.

[0020] In some embodiments of the present invention, the transport equipment further includes a first door body connected to the rear of the carriage along the first direction. The first door body has a first state and a second state that can be switched between each other. In the first state, the first door body is closed, and in the second state, the first door body is open.

[0021] In the second state, along the first direction, the orthographic projection of the stirring assembly onto the plane where the first door is located is within the area of ​​the first door.

[0022] In some embodiments of the present invention, the transport equipment further includes a second drive device and a control device. The drive end of the second drive device is connected to the first door body and is used to drive the first door body to switch between the first state and the second state. The control device is electrically connected to the first drive device and the second drive device respectively. Attached Figure Description

[0023] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0024] Figure 1 A schematic diagram of the structure of a transportation device according to an embodiment of the present invention is shown.

[0025] Figure 2 A cross-sectional view of a transport device according to an embodiment of the present invention is shown schematically.

[0026] The attached figures are labeled as follows:

[0027] 100. Transportation equipment;

[0028] 1. Vehicle body;

[0029] 2. Carriage; 21. Floor; 22. Inclined plate; 231. First cover plate; 232. Second cover plate; 24. First space; 25. Second space;

[0030] 3. Stirring assembly; 31. Stirring shaft; 32. Spiral blades;

[0031] 4. First driving device;

[0032] 51. Frame; 52. Pressure-reducing components;

[0033] 6. First phylum;

[0034] 7. Second phylum;

[0035] 8. Mixture;

[0036] X, first direction;

[0037] Y, the second direction;

[0038] Z, Third-party orientation. Detailed Implementation

[0039] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0040] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0041] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0042] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0043] Segregation is a significant factor affecting pavement quality during asphalt pavement construction. Segregation leads to water damage and reduced smoothness, severely impacting pavement performance and lifespan. Studies show a direct link between asphalt pavement distress and segregation during construction, particularly during asphalt mixture unloading, where significant vertical displacement easily causes severe aggregate segregation. Therefore, controlling asphalt mixture segregation is crucial for improving paving quality.

[0044] In related technologies, the most common unloading method in asphalt pavement construction is to transport the asphalt mixture to the construction site by a truck, and then unload the mixture into the paver's hopper by raising the truck bed. This unloading method has many problems: on the one hand, the mixture will undergo significant movement during the unloading process, leading to severe segregation; on the other hand, this method of unloading with a high-supported truck bed poses a great safety hazard, especially on slightly steep road sections, where there is a risk of the entire truck overturning.

[0045] To address the aggregate segregation problem caused by traditional unloading methods, the following two main approaches are currently used: (1) Adding a transfer vehicle for the mixture: A transfer vehicle is added between the transport vehicle and the paver. The transport vehicle unloads the mixture into the transfer vehicle, where it is then mixed a second time before being transported to the paver. Although this method can eliminate aggregate segregation during loading and transportation, it has drawbacks such as high operating costs, increased construction complexity, high requirements for working space, and potential risks of mixture cooling and equipment failure leading to downtime. Therefore, it has not been widely used in asphalt construction in my country. (2) Using a transport vehicle equipped with a scraper and conveyor belt: The mixture is transported to the paver hopper via a scraper or conveyor belt located at the bottom of the truck bed. Although this method can solve the unloading segregation problem, it is difficult to eliminate the segregation of the mixture during loading and transportation.

[0046] In view of this, this embodiment provides a transport device 100, which aims to continuously and fully mix and push the asphalt mixture 8 throughout the entire process of loading, transporting and unloading by setting at least one mixing component 3 and a first driving device 4 to drive the mixing component 3 to rotate, thereby eliminating the segregation of the asphalt mixture 8 during loading, transporting and unloading, and improving the smoothness and uniformity of paving, thereby solving the above-mentioned technical problems.

[0047] like Figures 1 to 2 As shown, according to an embodiment of the present invention, a transport device 100 is provided for transporting asphalt mixture 8. The transport device 100 includes a vehicle body 1, a mixing device and a first drive device 4.

[0048] The vehicle body 1 forms the main frame of the entire transport equipment 100. It is typically welded from high-strength steel and possesses sufficient strength and rigidity to support the weight of the cargo box 2 and the load of the asphalt mixture 8. The vehicle body 1 includes components such as a frame and wheels. The frame provides support and connection, and can be used to mount the cargo box 2 and other equipment. The wheels are used to move the transport equipment 100. The cargo box 2 is mounted on the vehicle body 1 and is primarily used to hold the asphalt mixture 8. The cargo box 2 is typically a cuboid structure, welded from high-strength steel plates, with a smooth interior to reduce the adhesion of the mixture 8. The top and rear of the cargo box 2 are respectively equipped with an inlet and an outlet. The inlet is used to load the mixture 8, and the outlet is used to unload the asphalt mixture 8 into the paver's hopper.

[0049] The mixing device includes at least one mixing component 3, which has a mixing shaft 31, which may be made of high-strength steel and is arranged along the length of the truck bed 2. The mixing component 3 is usually installed at the bottom or lower middle part of the truck bed 2, and the specific location is designed according to the loading height of the mixture 8 and the unloading requirements. The mixing component 3 continuously mixes the mixture 8 in the truck bed 2 by rotating, preventing segregation. At the same time, the mixing component 3 performs secondary mixing of the mixture 8 during rotation and pushes the material towards the rear of the truck bed 2, evenly conveying the mixture 8 into the paver hopper at the rear of the truck bed 2, ensuring continuous and sufficient mixing and pushing of the asphalt mixture 8.

[0050] The driving end of the first driving device 4 is connected to one end of the mixing assembly 3. The first driving device 4 is used to drive the mixing assembly 3 to rotate and push the asphalt mixture 8 mixed by the mixing assembly 3 along the first direction X. The first driving device 4 may include a motor, a reducer, and a transmission mechanism. The motor provides power, the reducer is used to adjust the speed and torque, and the transmission mechanism can adopt a gear and rack drive, chain drive, or hydraulic drive, etc., to transmit the rotational motion of the motor to the mixing assembly 3, so that the mixing assembly 3 rotates continuously and pushes the asphalt mixture 8 along the first direction X. During mixing and feeding, the motor drives the mixing assembly 3 to rotate to mix the mixture 8. Through the continuous mixing and conveying of the mixture 8 by the mixing assembly 3, it is ensured that the asphalt mixture 8 remains uniform during loading, transportation, and unloading, effectively preventing segregation.

[0051] Pressure reducing devices are spaced apart on the upper part of the mixing assembly 3. The pressure reducing devices are used to disperse the pressure of the asphalt mixture 8 on the mixing assembly 3.

[0052] The transport equipment 100 of the present invention, by providing at least one mixing component 3 with a mixing shaft 31 extending along the length of the carriage 2, and a first driving device 4 that drives the mixing component 3 to rotate and push the asphalt mixture 8 along the first direction X, can continuously and fully mix and push the asphalt mixture 8 throughout the entire process of loading, transporting and unloading, thereby improving the mixing effect and efficiency. It not only effectively solves the segregation problem of the asphalt mixture 8 during the loading, transporting and unloading stages, but also enables the mixture 8 to be delivered more evenly into the paver, providing the paver with a more uniform asphalt mixture 8 continuously and uninterruptedly. This improves the smoothness and uniformity of paving, comprehensively enhances the overall performance of asphalt pavement construction, extends the service life of the pavement, and ensures the continuity and stability of construction, improves construction efficiency, and reduces construction costs. In addition, it can also improve construction safety and reduce potential risks caused by equipment failure and cooling of the mixture 8. By setting up a pressure reducing device, the pressure of the mixture 8 on the mixing component 3 can be effectively dispersed, reducing the impact and vibration of the mixing component 3 during operation, extending its service life, improving the operating efficiency and reliability of the transportation equipment, and the safety of the construction process. In addition, the pressure reducing device plays a diversion role on the upper asphalt mixture 8, so that the mixture 8 can be more evenly distributed around the mixing component 3 during the mixing process, improving the uniformity and efficiency of mixing.

[0053] In some embodiments of the present invention, the stirring device includes a plurality of stirring components 3, which are spaced apart in the carriage 2 along a second direction Y, the second direction Y being perpendicular to the first direction X.

[0054] like Figure 1As shown, a partition is installed inside the carriage 2, dividing the interior of the carriage 2 into two independent spaces: a first space 24 and a second space 25. There are three mixing components 3, with the second direction Y being the width direction of the carriage 2. The three mixing components 3 are arranged in the first space 24 at intervals along the width direction of the carriage 2. The asphalt mixture 8 is loaded into the first space 24. By arranging the three mixing components 3 at intervals along the width direction of the first space 24, it is ensured that the asphalt mixture 8 in all parts of the first space 24 is fully mixed, effectively preventing local accumulation or segregation of the mixture 8 within the carriage 2, especially on the sides and in the middle of the carriage 2. Furthermore, through the coordinated work of the three mixing components 3, each mixing component 3 is responsible for the mixing task of a specific area, avoiding the problem of uneven mixing caused by a single mixing component 3, thereby improving the overall uniformity of the mixture 8. The spacing between two adjacent mixing components 3 is designed according to the particle size and flowability of the asphalt mixture 8. Generally, the spacing between the mixing components 3 should be less than twice the maximum particle size of the mixture 8 to prevent the asphalt mixture 8 from accumulating between the mixing components 3. The mixing component 3 can be detachably installed inside the carriage 2. The detachable installation method and optimized support structure facilitate the maintenance and replacement of the mixing component 3, reduce equipment downtime, and improve equipment availability.

[0055] The first drive device 4 is disposed within the second space 25, which is approximately 100 cm long along the first direction X. By placing the first drive device 4 within the second space 25, it can be isolated from the asphalt mixture 8, preventing the asphalt mixture 8 from affecting the first drive device 4 and ensuring the stability and reliability of its operation. The first drive device 4 includes three motors, each connected to one of the three mixing components 3. By equipping each mixing component 3 with an independent motor, the speed and movement mode of each mixing component 3 can be independently controlled as needed. This independent drive method can better adapt to mixtures 8 with different particle sizes and flowability, and can dynamically adjust the mixing speed according to the actual conditions of the mixture 8 (such as particle size, moisture content, etc.), further improving the mixing effect.

[0056] In other embodiments, the number of mixing components 3 can be flexibly adjusted according to actual needs to meet the requirements of different construction scenarios and the characteristics of the mixture 8. For example, if the width of the truck bed 2 is large, the number of mixing components 3 can be increased evenly along the width direction of the truck bed 2. For truck beds with larger capacity, increasing the number of mixing components 3 can ensure that the mixture 8 in each area of ​​the truck bed 2 is fully mixed, which can better adapt to truck beds of different sizes and improve the versatility and flexibility of the equipment. For example, different types of asphalt mixtures 8 (such as coarse aggregate and fine aggregate) have different fluidity and segregation tendencies. For mixtures 8 with a greater tendency to segregate, increasing the number of mixing components 3 can better prevent segregation. For example, the number of mixing components 3 can be adjusted according to construction requirements and paving quality standards. If the construction requires a high degree of uniformity of the mixture 8, the number of mixing components 3 can be appropriately increased.

[0057] In some embodiments of the present invention, the stirring assembly 3 includes a stirring shaft 31 and a spiral blade 32 connected to the stirring shaft 31, the spiral blade 32 extending spirally along the length direction of the stirring shaft 31.

[0058] like Figure 1 As shown, the stirring shaft 31 passes through the partition and connects to the first drive device 4. The stirring shaft 31 is cylindrical with a smooth surface to reduce friction, and its length can be adjusted according to the length of the carriage 2. The stirring shaft 31 is usually made of high-strength steel, which can withstand continuous rotation and thrust, while also having good wear resistance and fatigue resistance. The spiral blades 32 extend spirally along the length of the stirring shaft 31, and can be spiral or paddle-shaped, so that the blades can generate thrust when rotating, conveying the mixture 8 along the direction of the stirring shaft 31. The diameter of the spiral blades 32 is 25cm-32cm, for example, the diameter of the spiral blades 32 can be 25cm, 26cm, 27cm, 28cm, 29cm, 30cm, 32cm, etc. The diameter of the spiral blades 32 determines the range that it can cover during the stirring process. A larger diameter can more effectively push the material, reduce the stirring dead zone, and improve the stirring efficiency. By setting the spiral blades 32 within the above-mentioned diameter range, it is possible to ensure that the mixture 8 is evenly distributed throughout the carriage 2, reduce segregation, and improve the uniformity and efficiency of stirring.

[0059] The spiral blades 32 can be made of wear-resistant steel or alloy materials to adapt to the wear of the mixture 8 and extend the service life of the spiral blades 32. The spiral blades 32 are evenly distributed on the stirring shaft 31, and the spacing between the blades is designed according to the particle size and flowability of the mixture 8 to ensure uniform distribution of the mixture 8 during stirring. The angle of the spiral blades 32 can be adjusted according to the properties of the mixture 8 and stirring requirements; the larger the spiral angle, the greater the thrust generated by the blades during rotation. The spiral blades 32 can be designed in different shapes, such as constant pitch spirals and variable pitch spirals. Constant pitch spiral blades 32 can evenly push the material during stirring, while variable pitch spiral blades 32 can adjust the thrust according to the distribution of the mixture 8, further improving the stirring effect. The thickness of the spiral blades 32 can be adjusted according to the particle size and wear characteristics of the mixture 8; thicker blades are suitable for mixtures with larger particle sizes, while thinner blades are suitable for mixtures with smaller particle sizes.

[0060] In some embodiments of the present invention, the pressure reducing device includes a frame 51 and pressure reducing components 52 disposed on the frame 51. An installation space is formed inside the frame 51, and the stirring assembly 3 is disposed in the installation space. The pressure reducing components 52 are spaced apart on the upper part of the stirring assembly 3 along a third direction Z, where the third direction Z is the height direction of the carriage 2.

[0061] like Figure 2 As shown, the frame 51 is typically a frame structure, which ensures sufficient strength while reducing material usage and weight. The frame 51 is usually made of high-strength steel or alloy materials, which have good mechanical properties and durability, capable of withstanding large loads and long-term use. The frame 51 is fixed within the first space 24 by welding or bolting to ensure its stability. An installation space is formed inside the frame 51 to accommodate the mixing assembly 3. The dimensions of the frame 51 are designed according to the dimensions of the mixing assembly 3 and the internal space of the carriage 2, ensuring that the mixing assembly 3 can rotate freely while avoiding collisions with the inner wall of the carriage 2.

[0062] Pressure-reducing components 52 are spaced apart along the height of the carriage 2 on the upper part of the mixing assembly 3. These components are typically made of wear-resistant materials such as polyurethane, rubber, or high-strength plastics, which possess good elasticity and wear resistance. The pressure-reducing components 52 can be solid or hollow. Solid components offer higher strength and wear resistance, are less prone to deformation during operation, and can withstand greater pressure and long-term wear, extending their service life. Hollow components are lighter, reducing the overall weight of the equipment and improving its mobility and energy efficiency. The pressure-reducing components 52 can be integrally molded with the frame 51, manufactured through injection molding or casting processes, improving their stability and integrity, reducing connection points between components, and lowering the failure rate. Alternatively, the pressure-reducing components 52 can be separately mounted on the frame 51, typically secured with bolts or clips. Separately mounted components 52 can be replaced as needed, facilitating replacement and maintenance and reducing equipment maintenance costs and time.

[0063] By setting up the pressure-reducing component 52, the pressure of the mixture 8 on the mixing assembly 3 can be effectively dispersed, reducing the impact and vibration experienced by the mixing assembly 3 during operation, extending its service life, improving the operating efficiency and reliability of the equipment, and thus improving the safety of the construction process. Furthermore, the pressure-reducing component 52 acts as a diversion mechanism for the upper asphalt mixture 8. When the mixture 8 passes through the pressure-reducing component 52, it guides the asphalt mixture 8 to be evenly dispersed on both sides, allowing the mixture 8 to be more evenly distributed around the mixing assembly 3 during mixing. This ensures that the asphalt mixture 8 is more evenly subjected to the force of the mixing blades during mixing, thereby improving the uniformity and efficiency of the mixing process.

[0064] In some embodiments of the present invention, there are multiple pressure-reducing elements 52, and the multiple pressure-reducing elements 52 are arranged at intervals along the first direction X on the frame 51.

[0065] like Figure 2 As shown, multiple pressure-reducing components 52 are spaced apart along the length of the first space 24, with the same spacing between adjacent pressure-reducing components 52. This allows the pressure of the asphalt mixture 8 on the mixing assembly 3 to be evenly distributed across each pressure-reducing component 52 during mixing, rather than concentrated at a single point. This reduces the localized pressure on the mixing assembly 3 during operation, preventing excessive wear and damage caused by pressure concentration and extending its service life. Furthermore, the evenly spaced pressure-reducing components 52 along the length of the carriage 2 reduce localized accumulation of the asphalt mixture 8 during mixing, ensuring that the asphalt mixture 8 passes evenly through each pressure-reducing component 52 and is more evenly distributed on both sides of the mixing assembly 3, improving mixing uniformity and efficiency.

[0066] In some embodiments of the present invention, the pressure-reducing member 52 is a truncated cone structure that protrudes from the side near the frame 51 to the side away from the frame 51.

[0067] like Figure 2 As shown, the pressure-reducing component 52 is a triangular pyramid structure, with its base and three sides being equilateral triangles. The side length 'a' of the equilateral triangle is 18cm-20cm, for example, 18cm, 18.5cm, 18.9cm, 19cm, 19.3cm, 19.6cm, 19.8cm, 20cm, etc. The vertex of the triangular pyramid is located directly above the center of the base. The vertical height 'h' between the vertex and the center of the base can be calculated based on the side length 'a'. For example, when the side length 'a' is 18cm, 'h' is 15.59cm; when the side length 'a' is 20cm, 'h' is 17.32cm. By setting the pressure-reducing component 52 with a conical structure, the pressure of the mixture 8 on the stirring assembly 3 can be evenly distributed over a larger area, thereby significantly reducing the local pressure borne by the stirring assembly 3 during operation.

[0068] In other embodiments, the pressure-reducing member 52 can also be designed as a square pyramid, a cone, or a multi-faceted pyramid. For example, the base of the square pyramid structure is a square, and the sides are four triangles. The vertex of the square pyramid is located directly above the center of the square. The square base provides good stability and can evenly distribute the pressure on the square base, reducing the phenomenon of local pressure concentration. The smooth surface of the cone structure can more effectively guide the flow of the mixture 8, reduce the accumulation of the mixture 8 on the surface of the pressure-reducing member 52, and can evenly distribute the pressure on the circular base, reducing the phenomenon of local pressure concentration.

[0069] In some embodiments of the present invention, the transport device 100 further includes at least one cover plate, one end of which is connected to the inner wall of the carriage 2. The cover plate can be opened and closed relative to the bottom wall of the carriage 2. When the cover plate is closed, it is located above the pressure relief device and extends along the first direction X.

[0070] like Figure 2As shown, the system includes a first cover plate 231 and a second cover plate 232, which are respectively connected to the inner sidewall of the carriage 2. They can be connected by hinges or slide rails and can be driven manually or hydraulically, allowing the covers to open and close relative to the bottom wall of the carriage 2. The first cover plate 231 and the second cover plate 232 are typically made of high-strength steel or alloy materials to ensure they can withstand certain loads and provide sufficient strength. The dimensions of the first cover plate 231 and the second cover plate 232 are designed to completely cover the stirring assembly 3, ensuring effective protection of the stirring assembly 3 when closed. When the first cover plate 231 and the second cover plate 232 are closed, the plane containing the first cover plate 231 and the second cover plate 232 is located above the pressure reducing device and extends along the first direction X (the length direction of the carriage 2), so that the first cover plate 231 and the second cover plate 232 can completely cover the stirring assembly 3, providing protection. When the stirring component 3 is not required to work, the first cover plate 231 and the second cover plate 232 can be closed to completely cover the stirring component 3, thereby effectively protecting the stirring component 3 from the influence of the external environment, reducing wear and damage, extending the service life of the stirring component 3, and improving the versatility and applicability of the equipment, enabling the equipment to adapt to various transportation scenarios.

[0071] In some embodiments of the present invention, the carriage 2 includes a floor plate 21 and inclined plates 22 connected to both sides of the floor plate 21. The two inclined plates 22 are inclined relative to the height direction of the carriage 2 in a direction that brings them closer to each other.

[0072] like Figure 1 As shown, the base plate 21 is a planar structure extending horizontally. Inclined plates 22 are connected to both sides of the base plate 21. The inclined plates 22 slope towards each other from one end towards the base plate 21, forming a funnel-shaped structure. The two inclined plates 22 have the same inclination angle, typically designed to be 15°-30°. For example, the inclination angle can be 15°, 18°, 20°, 22°, 25°, 30°, etc. The specific angle is adjusted according to the fluidity of the mixture 8 and construction requirements. By setting the inclined plates 22, the asphalt mixture 8 can move more smoothly towards the center of the base plate 21 within the truck bed 2, reducing the accumulation of the mixture 8 on the side walls of the truck bed 2. This allows the mixing assembly 3 to deliver the asphalt mixture 8 to the rear of the truck bed 2 without residue, improving the utilization rate of the mixture 8, reducing waste, and lowering construction costs. In addition, by setting the inclined plate 22, the conveying path of the mixture 8 can be optimized, making it easier for the mixture 8 to reach the mixing component 3, improving the feeding efficiency of the mixing device, and enabling the mixture 8 to be evenly subjected to the force of the mixing blades.

[0073] In some embodiments of the present invention, the transport device 100 further includes a first door 6, which is connected to the rear of the carriage 2 along a first direction X. The first door 6 has a first state and a second state that can be switched between each other. In the first state, the first door 6 is closed, and in the second state, the first door 6 is open. In the second state, the orthographic projection portion of the stirring assembly 3 on the plane where the first door 6 is located is located within the area of ​​the first door 6.

[0074] Specifically, it also includes a second door 7, which is larger than the first door 6. The second door 7 is vertically positioned above the first door 6, approximately 60cm from the bottom of the carriage 2. This allows the second door 7 to partially obstruct the spiral agitator, preventing the mixture 8 from freely sliding down during unloading and ensuring that it does not slide directly from the rear of the carriage 2. The second door 7 remains closed throughout transportation and unloading, ensuring that the mixture 8 does not leak and improving equipment safety.

[0075] The first door 6 is connected to the rear of the carriage 2 via hinges or slide rails, and can be opened and closed. During transportation, the first door 6 remains closed to ensure that the mixture 8 does not leak; during unloading, the first door 6 can be opened to allow the mixture 8 to be unloaded gradually. By controlling the degree of opening and closing of the first door 6, the unloading speed of the mixture 8 can be effectively controlled.

[0076] In the second state (first gate 6 open state), the orthographic projection of the mixing component 3 onto the plane of the first gate 6 is located within the area of ​​the first gate 6. That is, a portion of the mixing component 3 is obscured by the first gate 6, with an obscuring ratio of three-quarters. In other words, when the first gate 6 is open, it can obscure three-quarters of the mixing component 3. Even when open, the first gate 6 can still partially obscure the mixing component 3, preventing the mixture 8 from sliding directly from the rear of the truck bed 2 during unloading. Instead, it is gradually unloaded through the first gate 6, reducing the free flow of the mixture 8 and ensuring normal material transport. This allows for more even delivery of the asphalt mixture 8 into the paver's hopper, providing the paver with a continuous and uninterrupted supply of a more uniform asphalt mixture 8, improving paving quality and effect, and further ensuring the uniformity and durability of the asphalt pavement.

[0077] In some embodiments of the present invention, the transport device 100 further includes a second drive device and a control device. The drive end of the second drive device is connected to the first door 6 and is used to drive the first door 6 to switch between a first state and a second state. The control device is electrically connected to the first drive device 4 and the second drive device respectively.

[0078] Specifically, the second drive device includes a control handle and a lifting device. The control handle is usually installed in a location easily accessible to the operator, such as in the cab or on the operating platform, to ensure convenient operation. The lifting device can be driven by a hydraulic cylinder, an electric push rod, or a pneumatic cylinder. The lifting device is installed at the rear of the carriage 2, typically on the side or bottom of the first door 6. The drive end of the lifting device is connected to the first door 6 to provide power, effectively driving the opening and closing of the first door 6, and driving the lifting or lowering of the first door 6. The hydraulic system can provide stable power output, ensuring smooth and reliable opening and closing of the first door 6. In this embodiment, the lifting device includes components such as a hydraulic cylinder, a hydraulic pump, and hydraulic valves. The hydraulic cylinder is connected to the first door 6 and is connected to the hydraulic pump through a hydraulic pipeline. The hydraulic cylinder is driven to extend and retract by the pressure oil provided by the hydraulic pump, thereby realizing the lifting or lowering of the first door 6.

[0079] The signal output terminal of the control device is electrically connected to the signal input terminal of the second drive device. The control device and the second drive device can be connected via electrical wiring (such as wires or cables), enabling the control device to send electrical signals to control the operating state of the second drive device. The second drive device can then drive the first gate 6 to switch between a first state and a second state according to the instructions from the control device. During transportation, the first gate 6 remains closed; during unloading, the first gate 6 opens, allowing the mixture 8 to be gradually discharged.

[0080] By operating the control handle, the operator can issue commands to drive the lifting device, thereby controlling the lifting or lowering of the first door 6, allowing the first door 6 to switch between a first state (closed state) and a second state (open state). During unloading, the operator operates the control handle to issue a lifting command. The control handle transmits a signal to the hydraulic system, the hydraulic pump starts working, supplying pressurized oil to the hydraulic cylinder. The hydraulic cylinder extends and retracts, driving the small tail door upwards along a predetermined track or hinge, gradually opening the first door 6, and allowing the mixed material 8 to begin unloading from the rear of the carriage 2. During loading, the operator operates the control handle to issue a lowering command. The control handle transmits a signal to the hydraulic system, the hydraulic pump stops working, the hydraulic cylinder retracts, and the first door 6 descends downwards along the predetermined track or hinge, gradually closing the first door 6, creating a closed receiving space in the carriage 2 for material to be fed into the first space 24.

[0081] The control device is electrically connected to the first drive device 4. It can be connected via electrical wiring (such as wires or cables) to allow the control device to send electrical signals to control the operation of the first drive device 4. The control device is operated via an electronic control panel installed in the driver's cab of the transport vehicle for easy access by the operator. The electronic control panel includes a speed control panel, a start button, a stop button, and an emergency stop button. The start button starts the mixing assembly 3, the stop button stops it, and the emergency stop button can quickly stop the mixing assembly 3 in an emergency to ensure the safety of equipment and personnel. The speed control panel includes a display screen and speed adjustment buttons. The display screen shows the current rotation speed of the mixing assembly 3, as well as other possible operating parameters (such as running time and fault information). The speed adjustment buttons allow the operator to manually adjust the rotation speed of the mixing assembly 3, enabling precise control to adapt to different construction needs. By installing an electronic control panel inside the cab, operators can easily control the operating status of the mixing component 3, ensuring the smooth progress of the construction process, improving the convenience and accuracy of operation, and enhancing the safety and reliability of the equipment.

[0082] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A transportation device, characterized in that, include: The vehicle body has a cargo box on it, which is used to hold asphalt mixture; A stirring device includes at least one stirring component, the stirring component being disposed inside the carriage, and the stirring shaft of the stirring component extending along a first direction, the first direction being the length direction of the carriage; A first driving device, wherein the driving end of the first driving device is connected to one end of the mixing assembly, the first driving device is used to drive the mixing assembly to rotate and to push the asphalt mixture mixed by the mixing assembly in a straight line along the first direction; Pressure reducing devices are spaced apart on the upper part of the mixing assembly, and the pressure reducing devices are used to disperse the pressure of the asphalt mixture on the mixing assembly.

2. The transportation equipment according to claim 1, characterized in that, The stirring device includes multiple stirring components, which are spaced apart in the carriage along a second direction perpendicular to the first direction.

3. The transportation equipment according to claim 1, characterized in that, The stirring assembly includes a stirring shaft and helical blades connected to the stirring shaft, the helical blades extending helically along the length of the stirring shaft.

4. The transportation equipment according to claim 1, characterized in that, The pressure-reducing device includes a frame and pressure-reducing components disposed on the frame. An installation space is formed within the frame, and the stirring assembly is disposed within the installation space. The pressure-reducing components are spaced apart on the upper part of the stirring assembly along a third direction, which is the height direction of the carriage.

5. The transportation equipment according to claim 4, characterized in that, The number of pressure-reducing components is multiple, and the multiple pressure-reducing components are spaced apart on the frame along the first direction.

6. The transportation equipment according to claim 4, characterized in that, The pressure-reducing component is a conical truncated structure that protrudes from the side closest to the frame to the side furthest from the frame.

7. The transport equipment according to any one of claims 1 to 6, characterized in that, The transport equipment also includes a cover plate, one end of which is connected to the inner wall of the carriage. The cover plate can be opened and closed relative to the bottom wall of the carriage. When the cover plate is closed, it is located above the pressure relief device and extends along the first direction.

8. The transport equipment according to any one of claims 1 to 6, characterized in that, The carriage includes a floor and inclined plates connected to both sides of the floor. The two inclined plates are inclined relative to the height direction of the carriage, with one end of each inclined plate facing the floor and moving closer to each other.

9. The transport equipment according to any one of claims 1 to 6, characterized in that, The transport equipment also includes a first door, which is connected to the rear of the carriage along the first direction. The first door has a first state and a second state that can be switched between each other. In the first state, the first door is closed, and in the second state, the first door is open. In the second state, along the first direction, the orthographic projection of the stirring assembly onto the plane where the first door is located is within the area of ​​the first door.

10. The transport equipment according to claim 9, characterized in that, The transport equipment also includes a second drive device and a control device. The drive end of the second drive device is connected to the first door body and is used to drive the first door body to switch between the first state and the second state. The control device is electrically connected to the first drive device and the second drive device respectively.

Images