An asphalt mixture storage device, a paver hopper and a paver

Abstract

The utility model discloses an asphalt mixture storage device, paver hopper and paver, include: main body warehouse frame, the main body warehouse frame bottom is equipped with the discharge gate for the transfer of asphalt mixture to the material belt of paver hopper and transports, cleaning port, at least one cleaning port is set up in the front wall of main body warehouse frame, the cleaning port is equipped with the seal cover that can open and close and is used for controlling the opening and closing assembly of seal cover, maintenance port, the maintenance port is set up in the rear wall of main body warehouse frame, and the position of maintenance port corresponds with the maintenance port of paver engine room, and is equipped with the maintenance cover that can open and close, tool box, two tool boxes are installed respectively in the left and right outer side wall of main body warehouse frame, reflector plate, the reflector plate detachable type installation is in the front wall board of main body warehouse frame is used for reflecting the light beam of asphalt transfer car laser ranging radar. The utility model discloses convenient cleaning and maintenance, and tool management is orderly, can guarantee that asphalt transfer car ranging radar ranging is accurate.

Description

Technical Field

[0001] This utility model relates to an asphalt mixture storage device, a paver hopper, and a paver, belonging to the technical field of road construction machinery and equipment. Background Technology

[0002] In asphalt pavement paving construction, the joint operation of asphalt transport trucks and pavers is the core technology to ensure paving quality: dump trucks first unload the high-temperature asphalt mixture into the asphalt transport trucks, and then the transport trucks accurately transport it to the special storage device in the paver's hopper. This device, as a key buffer, can balance the supply rhythm of the mixture and avoid problems such as uneven paving layer thickness and insufficient compaction caused by interruption of material supply. It is an important guarantee for achieving continuous and efficient paving.

[0003] However, existing material storage devices still have the following problems in practical applications, which seriously affect construction efficiency and operational safety: First, asphalt mixtures have the characteristics of high temperature and strong viscosity, and residual material is easily adhered to and accumulated on the inner wall of the device. Cleaning is difficult and time-consuming, and the residual material hardens and clumps after cooling, which not only affects the smoothness of subsequent material supply, but may also wear down equipment parts during material transportation, shortening the service life of the device; Second, there is a lack of dedicated storage space for cleaning tools and maintenance parts at the construction site, and they are generally piled up randomly and in a disorderly manner, which increases the time cost of retrieving tools and also easily leads to the loss of tools. Third, the material storage device is usually placed entirely inside the paver's hopper, and its rear wall directly obstructs the maintenance area of ​​the paver's engine compartment. This means that routine inspections and maintenance must be carried out by first removing the bulky material storage device, which is cumbersome and labor-intensive, seriously delaying the construction progress. Fourth, asphalt transport vehicles and pavers need to travel in sync. The laser ranging radar behind the transport vehicle needs to rely on a stable reference point to achieve precise distance control. However, the existing device does not have a dedicated ranging reference structure, which makes the radar ranging susceptible to environmental interference and the accuracy of the reference point insufficient. This increases the safety risks of collisions between the two vehicles and loss of distance control. Summary of the Invention

[0004] To address the problems existing in the prior art, this utility model provides an asphalt mixture storage device, a paver hopper, and a paver, which facilitates cleaning and maintenance, ensures orderly tool management, and guarantees accurate ranging by the radar of the asphalt transfer vehicle.

[0005] To achieve the above objectives, this utility model employs an asphalt mixture storage device, comprising: The main frame has an outlet at its bottom for transferring asphalt mixture into the paver's hopper conveyor belt; A cleaning port, at least one of the cleaning ports is provided on the front wall of the main compartment frame, and the cleaning port is equipped with an openable and closable sealing cover and a cover opening assembly for controlling the opening and closing of the sealing cover. The maintenance port is located on the rear wall of the main frame, and its position corresponds to the maintenance port of the paver engine compartment. It is equipped with an openable and closable maintenance cover. Toolboxes, two of which are respectively installed on the left and right outer walls of the main storage frame; A reflector, which is detachably installed on the front wall panel of the main frame, is used to reflect the laser ranging radar beam of the asphalt transfer vehicle.

[0006] As an improvement, the opening assembly is a steering handle, and the sealing cover is movably connected to the main storage rack through four steering handles; when the steering handle is vertical, the sealing cover is in a closed state; when the steering handle is rotated to a horizontal position and hooked onto the ear plate of the main storage rack, the sealing cover is in an open state.

[0007] As an improvement, the maintenance cover includes a left maintenance cover and a right maintenance cover, each with mounting holes, and is connected to the rear wall panel of the main warehouse frame by bolts passing through the mounting holes on the cover.

[0008] As an improvement, the toolbox is a sealed welded box with a hinged movable door panel on the front side of the box, and the movable door panel is equipped with an anti-theft lock.

[0009] As an improvement, the front wall panel of the main storage rack is provided with an upper ear plate and a lower ear plate; in the working state, the reflector is suspended at the upper ear plate; in the transportation state, the upper end of the reflector is suspended at the lower ear plate and the lower end is fixed at the pin shaft by a spring pin.

[0010] As an improvement, the main storage frame is welded from high-strength steel plates, and the cleaning port is located on the front wall slope of the main storage frame.

[0011] In a second aspect, this utility model also provides a paver hopper, on which the aforementioned asphalt mixture storage device is installed.

[0012] A third aspect of this utility model also provides a paver, on which the paver hopper is installed.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. Efficient Cleaning and Maintenance: Precisely matched structural design reduces operational difficulty and time costs. The front wall of the main frame is equipped with a cleaning port with a sealing cover and opening assembly, and the rear wall is equipped with a maintenance port corresponding to the paver's engine compartment and equipped with a maintenance cover. This design allows for quick cleaning of residual asphalt mixture inside the compartment through the cleaning port without disassembling the device (preventing hardening and caking that could damage the equipment). Furthermore, the engine compartment can be inspected through the maintenance port without removing the storage device. Compared to traditional devices, this significantly reduces cleaning and maintenance difficulty, shortens operation time, reduces equipment downtime, and thus improves equipment utilization and construction efficiency.

[0014] 2. Organized Tool Management: Utilizing a dual-toolbox structure, functional reuse and space optimization are achieved. Two toolboxes are installed on the left and right outer walls of the main storage rack. This integrated design allows for centralized storage of cleaning and maintenance tools, solving the problem of tool clutter and loss on-site and extending tool life. Furthermore, the toolboxes can serve as supports for the main storage rack, replacing traditional individual supports and effectively utilizing the space available for storage device supports. This achieves reuse of support and storage functions, improving space utilization and work efficiency.

[0015] 3. Significantly Enhanced Safety Performance: Based on a detachable reflector design, synchronized driving safety is ensured. The reflector is detachably installed on the front wall of the main frame and is used to reflect the laser ranging radar beam from the asphalt transport vehicle. This structure allows the reflector to stably provide a ranging reference point, ensuring that the asphalt transport vehicle and the paver maintain a fixed distance and the same speed when traveling synchronously. This avoids the risk of collisions due to inaccurate ranging, significantly improving operational safety and reducing the probability of accidents.

[0016] 4. Rational Structure and High Practicality: The layout revolves around core components, balancing functionality and performance. The modular layout of the main storage frame (with discharge port), cleaning port, maintenance port, toolbox, and reflector is designed with asphalt mixture storage and transfer as its core function. Each component operates independently and collaboratively: the main storage frame ensures basic storage and conveying, while other components, without affecting the core storage function, respectively perform cleaning, maintenance, tool storage, and safety distance measurement functions, comprehensively improving the practicality and reliability of the device. Simultaneously, the simplified structure reduces costs, resulting in outstanding economic efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is the front view of the present invention; Figure 3 This is a schematic diagram of the left side structure of this utility model (the installation position of the reflector during transportation). Figure 4 This is a schematic diagram of the left side structure of this utility model (the installation position of the reflector in the working state). Figure 5 This is a schematic diagram of the structure of the sealing cover plate of this utility model; Figure 6 This is a schematic diagram of the rear structure of the sealing cover plate of this utility model; In the diagram: 1. Main hopper frame; 11. Discharge port; 2. Cleaning port; 21. Sealing cover; 22. Steering handle; 23. Handle ear plate; 24. Clamping plate; 3. Maintenance port; 31. Left maintenance cover; 32. Right maintenance cover; 4. Toolbox; 41. Anti-theft lock; 42. Hinge; 5. Reflector; 51. Upper ear plate; 52. Lower ear plate; 53. Spring pin; 54. Pin shaft. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this application will be described in detail below through specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figures 1-4 As shown, an asphalt mixture storage device includes a main frame 1, a cleaning port 2, a maintenance port 3, a toolbox 4, and a reflector 5. The components are functionally compatible and work together to meet the needs of mixture storage and auxiliary operations. The main frame 1 is a frame structure with an open top and a closed bottom. A discharge port 11 is provided in the central area of ​​its bottom. The opening position and the size of the discharge port 11 are precisely corresponding to the feeding area of ​​the conveyor belt in the paver hopper. This can stably transfer the asphalt mixture in the silo to the conveyor belt in the paver hopper and avoid spillage during the transportation process. At least one of the cleaning ports 2 is opened on the front wall of the main silo frame 1. The size of the cleaning port 2 is such that construction personnel can enter the silo to ensure that they can enter the silo and use tools to clean the mixture adhering to the silo wall. Alternatively, it is suitable for personnel to operate or use cleaning tools (such as shovels and scrapers) from the outside to ensure efficient cleaning of residual mixture in the silo. The cleaning port 2 is equipped with a sealing cover 21 and a cover opening assembly. When the sealing cover 21 is closed, it can be tightly sealed to the silo frame wall. The cover opening assembly is used to control the opening and closing of the sealing cover 21. The maintenance opening 3 is located on the rear wall of the main frame 1. Its location, shape and size match the maintenance opening of the paver engine compartment, ensuring that the maintenance area of ​​the paver engine compartment can be directly exposed after the maintenance opening 3 is opened. The maintenance opening 3 is equipped with an openable and closable maintenance cover. The two toolboxes 4 are respectively fixed to the left and right outer walls of the main frame 1 by welding or bolts, and the bottom of the toolboxes 4 are closely attached to the support surface of the paver hopper. They can not only serve as a support structure to support the main frame 1 and ensure that the frame is placed stably, but also have a tool storage function, which can store the tools needed for cleaning and maintenance, thus realizing the reuse of structural functions. The reflector 5 is a flat plate structure with laser reflection function. It is installed on the front wall of the main frame 1 through a detachable structure. After installation, the reflective surface of the reflector 5 is precisely facing the emission direction of the laser ranging radar of the asphalt transfer vehicle, so as to stably reflect the beam emitted by the radar and assist the two vehicles to drive synchronously.

[0022] In some embodiments, such as Figure 2 , Figure 5 As shown, the opening assembly is a steering handle 22. There are four steering handles 22, which are symmetrically distributed on the front wall of the main frame 1 (corresponding to the four corners of the sealing cover 21) to form a balanced force structure. One end of each steering handle 22 is rotatably connected to the front wall of the main frame 1 via a rotating shaft. At the same time, the end of the rotating shaft (located on the back side of the sealing cover 21) is provided with a locking plate 24 that can rotate synchronously with the rotating shaft. When the steering handle 22 is rotated to the vertical downward position, the locking plate 24 on the rotating shaft can lock with the sealing cover 21, so that the sealing cover 21 is in a closed state. When the steering handle 22 is rotated to the horizontal direction and its end is hooked onto the handle ear plate 23 preset on the front wall of the main frame 1, the locking plate 24 is released from the sealing cover 21. At this time, the sealing cover 21 can be pushed inward to the device, thereby realizing the opening of the cleaning port 2.

[0023] In some embodiments, such as Figure 1 As shown, the maintenance cover includes a left maintenance cover 31 and a right maintenance cover 32. The overall size of the left maintenance cover 31 and the right maintenance cover 32 after being spliced ​​together is completely adapted to the maintenance opening 3, and can completely cover the maintenance opening 3. Both the left maintenance cover plate 31 and the right maintenance cover plate 32 are provided with several evenly distributed mounting holes. The rear wall of the main body frame 1 is pre-drilled with threaded holes that match the mounting holes at the edge of the maintenance opening 3. During installation, bolts are passed through the mounting holes on the cover plate and threadedly connected to the threaded holes on the rear wall of the main body frame 1 to achieve a stable fixation between the maintenance cover plate and the main body frame 1. When it is necessary to inspect the engine compartment, the left maintenance cover plate 31 and the right maintenance cover plate 32 can be completely removed from the main body frame 1 after the bolts are removed, which is convenient.

[0024] In some embodiments, the toolbox 4 is a sealed box made of high-strength steel plate, which can effectively prevent rain and dust and avoid the tools inside from getting damp or contaminated; the front edge of the box is rotatably connected to the side wall of the box through a hinge 42 to form a movable door panel that can be flipped open outwards, making it convenient to take out and put in tools. The movable door panel has a dedicated lock mounting position on the side away from the hinge 42. The anti-theft lock 41 is fixedly installed in the lock mounting position by bolts, and a latch is welded to the box body at the position corresponding to the anti-theft lock 41. After the movable door panel is closed, the door panel is locked by the cooperation of the anti-theft lock 41 and the latch to prevent tools from being lost.

[0025] In some embodiments, such as Figure 3 , Figure 4 As shown, an upper ear plate 51 and a lower ear plate 52 are fixedly provided on the outer side of the front wall panel of the main frame 1. The upper ear plate 51 is fixed to the upper area of ​​the front wall panel by welding or bolts, corresponding to the installation position of the reflector 5 in the working state. The lower ear plate 52 is fixed to the lower area of ​​the front wall panel by welding or bolts, corresponding to the installation position of the reflector 5 in the transportation state. The upper ear plate 51 and the lower ear plate 52 have the same structural specifications and are both provided with mounting slots that are compatible with the connecting rod of the reflector 5. The upper sides of the reflector plate 5 are integrally formed or welded with connecting rods. The end shape of the connecting rod is adapted to the mounting slots of the upper ear plate 51 and the lower ear plate 52, which can form a detachable snap-fit ​​or plug-in fit. The front wall panel of the main body frame 1 has a positioning hole at the position below the lower ear plate 52. The lower end of the reflector plate 5 has a through hole that matches the diameter of the positioning hole. By passing the pin 54 through the positioning hole of the front wall panel and the through hole of the reflector plate 5 in sequence, the lower end of the reflector plate 5 can be positioned and connected to the main body frame 1. In operation, the upper end of the reflector 5 is inserted into the mounting slot of the upper ear plate 51 through the connecting rods on both sides, so that the reflector 5 is naturally suspended at the upper ear plate 51, and the reflective surface is kept facing the emission direction of the laser ranging radar of the asphalt transfer vehicle to ensure accurate ranging. During transportation, the upper end of the reflector plate 5 is installed in conjunction with the mounting slot of the lower ear plate 52 via connecting rods on both sides. At the same time, the through hole at the lower end of the reflector plate 5 is aligned with the positioning hole of the front wall panel of the main frame 1. A pin 54 passes through the positioning hole and the through hole of the reflector plate 5, and a spring pin 53 passes through the pre-set pin hole at the end of the pin 54, forming a double fixing structure with the upper connecting rod engaging and the lower pin locking. This structure can achieve a stable fixation between the reflector plate 5 and the lower ear plate 52, so that the reflector plate 5 maintains a stable fixed installation state during transportation, effectively avoiding the shaking and collision of the reflector plate 5 due to vehicle bumps, thereby preventing damage to the reflective surface or loosening of the connecting structure.

[0026] In some embodiments, the main frame 1 is welded from high-strength wear-resistant steel plates, possessing sufficient load-bearing strength to meet the storage requirements of asphalt mixtures; its front wall is designed as a sloping structure inclined inwards towards the device, which can reduce the accumulation of mixtures on the wall surface; the cleaning port 2 is opened in the middle area of ​​the sloping front wall, which facilitates the cleaning of residual materials from the optimal angle; and the edge of the cleaning port 2 is affixed with sealing strips to enhance the sealing performance of the sealing cover 21 after it is closed, preventing the mixture from leaking out; The installation direction of the reflector plate 5 is consistent with the travel direction of the paver, ensuring that during the synchronous travel of the asphalt transport vehicle and the paver, the reflective surface of the reflector plate 5 can accurately receive the beam of light emitted by the laser rangefinder radar of the asphalt transport vehicle and stably reflect it back to the radar, thus ensuring accurate control of the distance between the two vehicles.

[0027] The working method of this utility model: 1. Operations during construction (storage and conveying of the mixture) The asphalt transfer truck unloads the asphalt mixture into the silo from the top opening of the main silo frame 1. The main silo frame 1 serves as a buffer silo to temporarily store the mixture, and the accumulation of the mixture is reduced by the front wall sloping structure. Under the action of gravity, the mixture falls from the bottom discharge port 11 into the conveyor belt in the paver hopper, realizing continuous material supply and avoiding uneven paving layer thickness caused by the interruption of material supply from the transfer truck.

[0028] During construction, the asphalt transport truck and the paver travel in sync. The laser ranging radar behind the transport truck emits a beam, which is reflected back to the radar after being reflected by reflector plate 5. The radar calculates the distance between the two vehicles in real time based on the reflected signal and automatically adjusts the driving speed to ensure that the two vehicles always maintain a safe distance and reduce the risk of collision.

[0029] If it is necessary to clear minor blockages in the discharge port 11 or check the condition inside the silo, the anti-theft lock 41 of the toolbox 4 can be opened and the corresponding tools (such as small shovels) can be taken out. After the operation is completed, the tools should be put back in place in time and the door should be locked to prevent the tools from being lost or contaminated by asphalt.

[0030] 2. Post-construction cleaning and maintenance After construction is completed, first empty the remaining mixture in the main silo frame 1, rotate the steering handle 22 of the cleaning port 2 to the horizontal direction, attach the end of the handle to the pre-set ear plate on the front wall of the main silo frame 1, and push the sealing cover 21 into the silo to open the cleaning port 2; the staff cleans the residual mixture adhering to the inner wall with tools or enters the silo (the cleaning difficulty is reduced due to the slope of the front wall and the anti-sticking structure); after cleaning, close the sealing cover 21 again and tighten the steering handle 22.

[0031] If maintenance of the paver's engine compartment is required, refer to... Figure 1 (Diagram of maintenance port) Use a wrench to remove the bolts on the left maintenance cover 31 and the right maintenance cover 32, remove the two covers, and directly inspect the components (such as oil pipes and filters) in the engine compartment through the maintenance port 3; after maintenance, reset the covers and tighten the bolts to ensure a seal.

[0032] 3. Equipment transportation and storage (after construction is completed) refer to Figure 4 (Transportation status diagram) First, remove the connecting rod connecting the reflector 5 and the upper ear plate 51. Move the reflector 5 downwards so that the connecting rod is aligned with the lower ear plate 52 at the bottom of the front wall panel and inserted into the mounting slot. Align the through hole at the bottom of the reflector 5 with the positioning hole below the lower ear plate 52, insert the pin 54 through the through hole, and then insert the spring pin 53 through the pin hole at the end of the pin 54 to form a double fixation, so as to prevent the reflector 5 from shaking and being damaged during transportation.

[0033] Check that all covers (sealing cover 21, maintenance cover) are closed and fixed, and that toolbox 4 is locked; use hoisting equipment to lift the main frame 1 out of the paver hopper and place it stably on the transport vehicle; avoid violent bumps during transportation to prevent loosening of the connections of various parts and ensure that no additional adjustments are needed for the next use.

[0034] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this utility model and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

Claims

1. An asphalt mixture storage device, characterized in that, include: The main frame (1) has an outlet (11) at the bottom for transferring asphalt mixture into the paver hopper conveyor belt. Cleaning port (2), at least one of the cleaning ports (2) is opened on the front wall of the main frame (1), the cleaning port (2) is equipped with an openable and closable sealing cover (21) and a cover opening assembly for controlling the opening and closing of the sealing cover (21); Maintenance port (3) is located on the rear wall of the main frame (1). The position of the maintenance port (3) corresponds to the maintenance port of the paver engine compartment and is equipped with an openable and closable maintenance cover. Toolbox (4), the two toolboxes (4) are respectively installed on the left and right outer walls of the main frame (1); A reflector (5) is detachably installed on the front wall of the main frame (1) to reflect the beam of the laser ranging radar of the asphalt transfer vehicle.

2. The asphalt mixture storage device according to claim 1, characterized in that, The opening assembly is a steering handle (22), and the sealing cover (21) is movably connected to the main storage rack (1) through the four steering handles (22); When the steering handle (22) is vertical, the sealing cover (21) is in a closed state; when the steering handle (22) is rotated to a horizontal position and hooked onto the ear plate of the main frame (1), the sealing cover (21) is in an open state.

3. The asphalt mixture storage device according to claim 1, characterized in that, The maintenance cover plate includes a left maintenance cover plate (31) and a right maintenance cover plate (32). Each maintenance cover plate has a mounting hole, and bolts are used to connect it to the rear wall plate of the main frame (1) through the mounting holes on the cover plate.

4. The asphalt mixture storage device according to claim 1, characterized in that, The toolbox (4) is a sealed welded box. A movable door panel is installed on the front side of the box via a hinge (42). The movable door panel is equipped with an anti-theft lock (41).

5. The asphalt mixture storage device according to claim 1, characterized in that, The front wall of the main frame (1) is provided with an upper ear plate (51) and a lower ear plate (52); in the working state, the reflector (5) is suspended at the upper ear plate (51); in the transportation state, the upper end of the reflector (5) is suspended at the lower ear plate (52) and the lower end is fixed at the pin shaft (54) by a spring pin (53).

6. The asphalt mixture storage device according to claim 1, characterized in that, The main storage frame (1) is made of high-strength steel plate welded together, and the cleaning port (2) is opened at the front wall slope of the main storage frame (1).

7. A paver hopper, characterized in that, The paver hopper is equipped with an asphalt mixture storage device as described in any one of claims 1-6.

8. A paver, characterized in that, The paver is equipped with the paver hopper as described in claim 7.

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