An asphalt paving device for highway construction

Abstract

This utility model discloses an asphalt paving device for highway construction, belonging to the field of asphalt paving technology. The device includes an asphalt paver, multiple sleeves connected to buffer mechanisms, and two connecting rods rotatably connected to deflection mechanisms at their other ends. Rotating plates are rotatably connected to the tops of the two deflection mechanisms, and these plates are rotatably connected to the bottom sides of the hopper. The deflection mechanisms and rotating plates work together to allow the asphalt mixture to automatically fall from the inclined rotating plates to the bottom of the hopper. This utility model achieves gradual impact attenuation through the buffer mechanism, converting the inertial impact energy of the material truck into controllable compressive deformation energy, effectively avoiding fatigue damage to hydraulic pipelines and sensing systems from rigid collisions. The mechanical linkage between the deflection mechanism and the rotating plates achieves integrated anti-collision unloading, solving the technical problem of low energy absorption efficiency versus unloading efficiency in traditional passive protection.

Description

Technical Field

[0001] This utility model relates to the field of asphalt paving technology, and in particular to an asphalt paving device for highway construction. Background Technology

[0002] Asphalt paving equipment for highway construction, also known as asphalt pavers, is a specialized machine used to evenly spread, compact, and level asphalt mixtures on the road surface, ensuring the smoothness and density of the road surface and improving construction efficiency and quality.

[0003] In highway construction, the docking efficiency of asphalt trucks and pavers, as well as equipment safety, directly affect construction progress and maintenance costs during asphalt paving operations. In traditional operation modes, trucks fully loaded with asphalt mixture must precisely dock with the paver's hopper by reversing. Since the trucks typically weigh tens of tons, the driver struggles to accurately control the stopping position and speed due to inertia, leading to frequent rigid collisions between the truck's rear and the paver's hopper. This impact load not only causes mechanical damage such as hopper deformation and loosening of connectors, but also easily triggers hidden faults such as hydraulic pipeline ruptures and sensor circuit breaks. Existing technologies often use rubber buffer blocks for passive protection, but these solutions have limitations such as limited buffer stroke and low energy absorption efficiency. Especially under continuous operation, repeated impacts still lead to accumulated fatigue damage. Furthermore, manual operation relies on driver experience, making it difficult to fundamentally address the potential threat posed by inertial impacts to equipment lifespan and construction safety.

[0004] Therefore, there is an urgent need to provide an asphalt paving device for highway construction to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an asphalt paving device for highway construction.

[0006] To solve the above-mentioned technical problems, the present invention provides a technical solution: providing an asphalt paving device for highway construction, including an asphalt paver, wherein a hopper is installed inside the paver, and two sleeves are fixedly connected to both sides of the bottom of the hopper;

[0007] Multiple sleeves are connected to a buffer mechanism. One end of the buffer mechanism is fixedly connected to a movable plate that matches the rear of the material cart. The buffer mechanism and the movable plate work together to buffer the impact force of the material cart.

[0008] The top of the movable plate is rotatably connected to two connecting rods on both sides, and the other end of each connecting rod is rotatably connected to a deflection mechanism.

[0009] The top of each of the two deflection mechanisms is rotatably connected to a rotating plate, and the two rotating plates are rotatably connected to the bottom sides of the hopper respectively. The deflection mechanism and the rotating plate cooperate to make the asphalt mixture automatically fall from the inclined rotating plate to the bottom of the hopper.

[0010] The present invention is further configured such that: two tracks for walking are installed at the bottom of the paver, two seats are installed at the top of the paver, a paving device for paving asphalt mixture is installed on one side of the paver, and a material conveyor connected to the paving device is installed at the bottom of the hopper, the conveyor being used to transport materials.

[0011] With the above technical solution, during operation, the operator sits in the seat and controls the paver to move to the designated position via the tracks. The paving device spreads the asphalt mixture from the hopper, which is conveyed by the material conveyor, evenly onto the road surface. This layout, through the design of a separate operating space and work area, allows the driver to focus on controlling the equipment. The linkage between the material conveyor and the paving device ensures that the asphalt supply and paving action are synchronized, avoiding construction interruptions caused by human coordination errors, and improving overall work efficiency and road surface forming quality.

[0012] The present invention is further configured such that: the buffer mechanism includes multiple movable shafts that are slidably connected in multiple sleeves respectively; the movable plate is fixedly connected to one end of the multiple movable shafts; springs are connected between the multiple movable shafts and the multiple sleeves respectively; and the two ends of the springs are fixedly connected to the other end of the movable shaft and the inside of the sleeve respectively.

[0013] Through the above technical solution, the buffer mechanism buffers the impact force of the material cart. When the material cart reverses to dock with the hopper, the material cart impacts the movable plate. The movable shaft slides along the sleeve axis to compress the spring. The spring absorbs the impact energy through deformation. The cooperation structure between the movable shaft and the sleeve extends the buffer stroke, so that the impact force is gradually attenuated rather than instantaneously rigidly transmitted. This design breaks through the stroke limitation of traditional rubber buffer blocks. Through the combined action of elastic deformation and sliding friction of metal components, it significantly improves the energy absorption efficiency, avoids fatigue damage to hydraulic pipelines and sensors caused by repeated impacts, and extends the service life of the equipment.

[0014] The present invention is further configured such that: the deflection mechanism includes connecting blocks rotatably connected to the other ends of two connecting rods via rotating shafts, one side of each of the two connecting blocks is rotatably connected to a second block via a rotating shaft, the top of each of the two second blocks is fixedly connected to a T-shaped block, and the bottom of each of the two rotating plates is slidably connected to the two T-shaped blocks respectively.

[0015] Through the above technical solution, the deflection mechanism deflects the rotating plate to assist the material in flowing into the bottom of the hopper. When the material car docks, the connecting rod is pressed and pushes the connecting block to rotate around the rotating shaft, which drives the second block to rotate synchronously. The T-shaped block slides along the T-shaped groove at the bottom of the rotating plate with the movement of the second block, forcing the rotating plate to deflect upward around the fixed axis. This mechanical transmission path converts the vertical impact force into the deflection motion of the rotating plate, which amplifies the buffering effect through the lever principle and uses the tilt angle of the rotating plate to achieve asphalt self-flow, thus solving the technical contradiction that traditional passive buffering cannot take into account both anti-collision and unloading efficiency.

[0016] The present invention is further configured such that: a T-shaped groove is provided at the center of the bottom of each of the two rotating plates, and the two T-shaped blocks correspond to the two T-shaped grooves respectively, and the two T-shaped blocks slide within the two T-shaped grooves respectively.

[0017] Through the above technical solution, during the deflection process, the T-block slides laterally along the T-groove at the bottom of the rotating plate, constraining the rotating plate to rotate only around a fixed axis, preventing deviation or jamming during deflection; this guiding design ensures that the rotating plate always maintains a stable deflection posture, allowing the asphalt mixture to slide down along the preset path, avoiding material spillage or equipment jamming caused by structural deviation, and improving the controllability of the unloading process.

[0018] The present invention is further configured such that: multiple first brackets are fixedly connected to both sides of the bottom of the hopper, the multiple first brackets are fixedly connected to two sleeves respectively, multiple fixing blocks are fixedly connected to both sides of the bottom of the hopper respectively, two fixing shafts are rotatably connected to the multiple fixing blocks respectively, and two rotating plates are fixedly connected to the two fixing shafts respectively.

[0019] Through the above technical solution, the first bracket firmly supports the sleeve on the side wall of the hopper, and the fixed block provides a rotation fulcrum for the rotating plate through the fixed shaft. When the movable plate is compressed, the rigid connection between the sleeve and the first bracket ensures that the buffer force is transmitted vertically to the hopper structure. The deflection of the rotating plate around the fixed shaft is precisely guided by the fixed block. This support system distributes the impact load to the overall frame of the hopper through multi-point rigid fixation, avoids local stress concentration, and ensures that the movement trajectory of the buffer mechanism and the deflection mechanism is precisely controllable, fundamentally solving the risk of damage to the main body of the equipment by inertial impact.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. This utility model achieves gradual impact attenuation through a buffer mechanism. It extends the buffer stroke by utilizing the sliding fit between the movable shaft and the sleeve, and converts the inertial impact energy of the material cart into controllable compressive deformation energy by combining the elastic deformation characteristics of the spring. This effectively avoids fatigue damage to the hydraulic pipeline and sensing system caused by rigid collisions. The mechanical linkage between the deflection mechanism and the rotating plate achieves integrated anti-collision unloading. The linkage transmission converts the vertical impact force into the fixed-axis deflection motion of the rotating plate, allowing the asphalt mixture to automatically slide to the bottom of the hopper under the action of gravity. This solves the technical problem of low energy absorption efficiency and the contradiction between unloading efficiency in traditional passive protection.

[0022] 2. This utility model achieves load dispersion through a rigid support system, and uses multi-point fixed brackets to vertically transfer the impact load to the hopper frame. Combined with the guide sliding design of the rotating plate, it ensures that the unloading path is precise and controllable, significantly reducing the risk of local stress concentration in the equipment. Ultimately, it achieves a composite technical effect of extending the service life of the equipment, improving the construction safety factor and operation efficiency. Attached Figure Description

[0023] Figure 1 This is a first-view structural diagram of the present invention;

[0024] Figure 2 This is a second-view sectional view of the present invention;

[0025] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0026] Figure 4 This is a third-view sectional view of the present invention;

[0027] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0028] Figure 6 This is a fourth-angle sectional view of the present invention;

[0029] Figure 7 This is a fifth-angle sectional view of the present invention;

[0030] Figure 8 for Figure 7 A magnified view of a section at point C.

[0031] In the diagram: 1. Paver; 2. Hopper; 3. Sleeve; 4. Buffer mechanism; 401. Movable shaft; 402. Spring; 5. Movable plate; 6. Connecting rod; 7. Deflection mechanism; 701. Connecting block; 702. Block 2; 703. T-block; 704. T-slot; 8. Rotating plate; 9. Track; 10. Seat; 11. Paver; 12. Conveyor; 13. First support; 14. Fixed block; 15. Fixed shaft. Detailed Implementation

[0032] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0033] Please see Figures 1-8 This embodiment of an asphalt paving device for highway construction includes an asphalt paver 1. A hopper 2 is installed inside the paver 1, and two sleeves 3 are fixedly connected to both sides of the bottom of the hopper 2. A buffer mechanism 4 is connected inside the sleeves 3. One end of the buffer mechanism 4 is fixedly connected to a movable plate 5 that matches the rear of the material truck. The buffer mechanism 4 and the movable plate 5 cooperate to buffer the impact force of the material truck. The buffer mechanism 4 includes multiple movable shafts 401 slidably connected inside the sleeves 3. One end of the movable plate 5 is fixedly connected to one end of the multiple movable shafts 401. Springs 402 are connected between the multiple movable shafts 401 and the multiple sleeves 3, and the two ends of the springs 402 are respectively connected to the movable shafts 401. 01 The other end is fixedly connected inside the sleeve 3. The function of the buffer mechanism 4 is to buffer the impact force of the material cart. When the material cart reverses to dock with the hopper 2, the material cart impacts the movable plate 5. The movable shaft 401 slides along the axial direction of the sleeve 3 to compress the spring 402. The spring 402 absorbs the impact energy through deformation. The cooperation structure between the movable shaft 401 and the sleeve 3 extends the buffer stroke, so that the impact force is gradually attenuated rather than instantaneously rigidly transmitted. This design breaks through the stroke limitation of traditional rubber buffer blocks. Through the combined action of elastic deformation and sliding friction of metal components, it significantly improves the energy absorption efficiency, avoids fatigue damage to hydraulic pipelines and sensors caused by repeated impacts, and extends the service life of the equipment.

[0034] like Figures 1-5As shown, connecting rods 6 are rotatably connected to both sides of the top of the movable plate 5. A deflection mechanism 7 is rotatably connected to the other end of each connecting rod 6. A rotating plate 8 is rotatably connected to the top of each of the two deflection mechanisms 7. The two rotating plates 8 are rotatably connected to the bottom sides of the hopper 2. The deflection mechanism 7 and the rotating plate 8 cooperate to allow the asphalt mixture to automatically fall from the inclined rotating plate 8 to the bottom of the hopper 2. The deflection mechanism 7 includes connecting blocks 701 rotatably connected to the other ends of the two connecting rods 6 via rotating shafts. A second block 702 is rotatably connected to one side of each connecting block 701 via a rotating shaft. A T-shaped block 703 is fixedly connected to the top of each of the two second blocks 702. The two rotating plates... The bottom of plate 8 is slidably connected to two T-blocks 703. The function of the deflection mechanism 7 is to deflect the rotating plate 8 and assist the material to flow into the bottom of the hopper 2. When the material car docks, the connecting rod 6 is pressed and pushes the connecting block 701 to rotate around the rotating shaft, which drives the second block 702 to rotate synchronously. The T-block 703 slides along the T-groove 704 at the bottom of the rotating plate 8 with the movement of the second block 702, forcing the rotating plate 8 to deflect upward around the fixed shaft 15. This mechanical transmission path converts the vertical impact force into the deflection motion of the rotating plate 8, which amplifies the buffering effect through the lever principle and realizes the asphalt self-flow by utilizing the tilt angle of the rotating plate 8, thus solving the technical contradiction that traditional passive buffering cannot take into account both anti-collision and unloading efficiency.

[0035] like Figures 1-2 As shown, the paver 1 has two tracks 9 installed at the bottom for movement, two seats 10 installed at the top, and a paving device 11 for paving asphalt mixture is installed on one side of the paver 1. A material conveyor 12 connected to the paving device 11 is installed at the bottom of the hopper 2. The conveyor 12 is used to transport materials. During operation, the operator sits on the seat 10 and controls the paver 1 to move to the designated position via the tracks 9. The paving device 11 evenly spreads the asphalt mixture from the hopper 2, which is conveyed by the material conveyor 12, onto the road surface. This layout, through the design of a separate operating space and work area, allows the driver to focus on controlling the equipment. The linkage between the material conveyor 12 and the paving device 11 ensures that the asphalt supply and paving action are synchronized, avoiding construction interruptions caused by human coordination errors, and improving overall work efficiency and road surface quality.

[0036] like Figures 4-6 As shown, T-slots 704 are provided at the center of the bottom of both rotating plates 8. Two T-blocks 703 correspond to the two T-slots 704 respectively. The two T-blocks 703 slide within the two T-slots 704 respectively. During the deflection process, the T-blocks 703 slide laterally along the T-slots 704 at the bottom of the rotating plate 8, constraining the rotating plate 8 to only rotate around the fixed axis 15, preventing deviation or jamming during deflection. This guiding design ensures that the rotating plate 8 always maintains a stable deflection posture, allowing the asphalt mixture to slide down along the preset path, avoiding material spillage or equipment jamming caused by structural deviation, and improving the controllability of the unloading process.

[0037] like Figures 1-3 As shown, multiple first supports 13 are fixedly connected to both sides of the bottom of the hopper 2. The multiple first supports 13 are fixedly connected to two sleeves 3 respectively. Multiple fixed blocks 14 are fixedly connected to both sides of the bottom of the hopper 2. Two fixed shafts 15 are rotatably connected to each of the multiple fixed blocks 14. Two rotating plates 8 are fixedly connected to the two fixed shafts 15 respectively. The first supports 13 firmly support the sleeves 3 to the side wall of the hopper 2. The fixed blocks 14 provide a rotation fulcrum for the rotating plates 8 through the fixed shafts 15. When the movable plate 5 is compressed, the rigid connection between the sleeves 3 and the first supports 13 ensures that the buffer force is vertically transmitted to the structure of the hopper 2. The deflection of the rotating plate 8 around the fixed shafts 15 is precisely guided by the fixed blocks 14. This support system distributes the impact load to the overall frame of the hopper 2 through multi-point rigid fixation, avoids local stress concentration, and ensures that the movement trajectory of the buffer mechanism 4 and the deflection mechanism 7 is precisely controllable, fundamentally solving the risk of damage to the main body of the equipment by inertial impact.

[0038] In use, this utility model achieves safe and efficient operation through a multi-stage energy conversion and structural linkage mechanism: When the fully loaded material truck reverses and approaches the hopper 2 of the paver 1, its tail first contacts the movable plate 5. At this time, the movable shaft 401 slides along the axial direction of the sleeve 3 and compresses the spring 402. Utilizing the elastic deformation and sliding friction characteristics of the metal components, the instantaneous impact energy is converted into progressive compression deformation energy. The deformation process of the spring 402 extends the buffer stroke, making the impact force non-rigid attenuation, effectively avoiding the impact load generated by rigid collisions. At the same time, after being compressed, the movable plate 5 pushes the connecting block 701 to rotate around the axis through the connecting rod 6, causing the second block 702 to rotate synchronously, forcing the T-shaped block 703 to slide laterally along the T-shaped groove 704 at the bottom of the rotating plate 8. This motion trajectory converts the vertical impact force into the force that compresses the rotating plate 8 around the axis. The upward deflection of the fixed shaft 15 causes the originally horizontal rotating plate 8 to form a preset tilt angle. At this time, the asphalt mixture in the material truck automatically slides down to the bottom of the hopper 2 under the action of gravity along the tilted rotating plate 8, completing the unloading action. In the above process, the sleeve 3 distributes the impact load to the overall frame of the hopper 2 through the first bracket 13. The rotating plate 8 achieves precise fixed-axis deflection through the fixed shaft 15 and the fixed block 14, ensuring that the buffer force is transmitted vertically and the unloading path is controllable. It not only protects the hydraulic pipeline and sensor from fatigue damage through the energy storage mechanism of the spring 402, but also couples the anti-collision buffer and automatic unloading functions through the mechanical transmission path, solving the problem of low energy absorption efficiency and unloading efficiency contradiction in traditional passive protection. Ultimately, it achieves the dual technical effects of extending equipment life and improving construction efficiency.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An asphalt paving device for road construction, comprising an asphalt paver (1), a hopper (2) being installed in the paver (1), characterized in that: Two sleeves (3) are fixedly connected to the bottom sides of the hopper (2); Multiple sleeves (3) are connected to a buffer mechanism (4), and one end of the buffer mechanism (4) is fixedly connected to a movable plate (5) that matches the tail of the material cart. The buffer mechanism (4) and the movable plate (5) work together to buffer the impact force of the material cart. The top two sides of the movable plate (5) are respectively rotatably connected to connecting rods (6), and the other ends of the two connecting rods (6) are rotatably connected to deflection mechanisms (7). The top of each of the two deflection mechanisms (7) is rotatably connected to a rotating plate (8). The two rotating plates (8) are rotatably connected to the bottom sides of the hopper (2) respectively. The deflection mechanism (7) and the rotating plate (8) cooperate to make the asphalt mixture fall automatically from the inclined rotating plate (8) to the bottom of the hopper (2).

2. The bitumen laying device for road construction as claimed in claim 1, wherein: The paver (1) is equipped with two tracks (9) for walking at the bottom, and two seats (10) are installed on the top of the paver (1). A paving device (11) for paving asphalt mixture is installed on one side of the paver (1). A material conveyor (12) connected to the paving device (11) is installed at the bottom of the hopper (2). The conveyor (12) is used to transport materials.

3. The bitumen laying device for road construction as claimed in claim 1, wherein: The buffer mechanism (4) includes multiple movable shafts (401) that are slidably connected in multiple sleeves (3). The movable plate (5) is fixedly connected to one end of the multiple movable shafts (401). A spring (402) is connected between the multiple movable shafts (401) and the multiple sleeves (3). The two ends of the spring (402) are fixedly connected to the other end of the movable shaft (401) and the inside of the sleeve (3).

4. The bitumen laying device for road construction as claimed in claim 1, wherein: The deflection mechanism (7) includes connecting blocks (701) that are rotatably connected to the other ends of the two connecting rods (6) via rotating shafts. Each of the two connecting blocks (701) has a second block (702) rotatably connected to one side via a rotating shaft. Each of the two second blocks (702) has a T-shaped block (703) fixedly connected to its top. The bottoms of the two rotating plates (8) are slidably connected to the two T-shaped blocks (703) respectively.

5. The asphalt paving device for road construction of claim 4, wherein: T-slots (704) are provided at the center of the bottom of the two rotating plates (8), and two T-blocks (703) correspond to the two T-slots (704) respectively. The two T-blocks (703) slide in the two T-slots (704) respectively.

6. The asphalt paving device for road construction of claim 1, wherein: Multiple first supports (13) are fixedly connected to both sides of the bottom of the hopper (2). The multiple first supports (13) are fixedly connected to two sleeves (3) respectively. Multiple fixed blocks (14) are fixedly connected to both sides of the bottom of the hopper (2). Two fixed shafts (15) are rotatably connected inside the multiple fixed blocks (14). The two rotating plates (8) are fixedly connected to the two fixed shafts (15) respectively.

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