Asphalt paving and compaction simultaneous operation device

Abstract

The utility model relates to road construction technical field especially is a kind of asphalt paving and compaction synchronous operation device, including trailer, operation mechanism is arranged on the trailer and is used to realize asphalt paving and compaction synchronous operation, operation mechanism includes: paving subassembly, including the agitator drum fixed in the top rear end of trailer, and spiral blade is installed in agitator drum inner wall;Compaction subassembly, including the fixed frame fixed in the rear end of trailer, the fixed frame rear end upper side is hinged with movable frame, and the shaft support is fixed in movable frame lower end, and vibration steel wheel is installed between the both ends of shaft support, and the both sides of fixed frame rear end lower side are hinged with hydraulic cylinder, and the output end of hydraulic cylinder upper side is hinged with movable frame;The paving subassembly still includes the feed inlet fixed in the agitator drum front end upper side, and the discharge port is provided in agitator drum rear end;Adopt paving and compaction synchronous operation, realize the efficient mixing of asphalt mixture, accurate temperature control and uniform paving;With adaptive compaction system, ensure that construction quality is stable.

Description

Technical Field

[0001] This utility model relates to the field of road construction technology, specifically to a device for simultaneous asphalt paving and compaction. Background Technology

[0002] In the field of road construction, asphalt pavement construction is one of the important infrastructure construction projects. Traditional asphalt pavement construction usually adopts a step-by-step operation of paver and roller. First, the paver spreads the hot-mix asphalt mixture evenly on the roadbed, and then the roller performs the compaction operation.

[0003] According to CN221740835U, a road asphalt paver is disclosed. This technology discloses a technical solution including "a machine body, a moving mechanism at the bottom of the machine body, an installation plate fixedly connected to the top of the moving mechanism, a feeding mechanism inside the installation plate, an asphalt mixture hopper at the top of the feeding mechanism, a driver's cavity on the left side of the asphalt mixture hopper, a connecting block fixedly connected to the left side of the machine body, and a paving mechanism and a compaction mechanism at the bottom of the connecting block". It has the technical effects of "the asphalt paver can move efficiently and smoothly by having a moving mechanism, the asphalt mixture hopper and the feeding mechanism are used to transport the asphalt mixture to the paving mechanism for paving operations, the spiral distribution roller and the paving scraper work together to ensure that the asphalt material can be laid quickly and evenly on the road surface, and the compaction roller rotates and applies pressure to make the paved asphalt material bond more tightly together".

[0004] The time interval between paving and compaction steps causes the temperature of the asphalt mixture to drop. In traditional construction, after the paver completes the paving operation, it needs to wait for the roller to compact it. During this time, the mixture gradually cools down due to exposure to the environment, resulting in increased viscosity and reduced plasticity, which seriously affects the final compaction effect and pavement quality. This temperature loss not only reduces the degree of compaction but may also lead to quality defects such as uneven porosity and insufficient smoothness in the pavement, ultimately affecting the service life of the road and driving comfort. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a device for simultaneous asphalt paving and compaction. By paving and compaction being carried out simultaneously, it achieves efficient mixing, precise temperature control, and uniform paving of asphalt mixtures. Combined with an adaptive compaction system, it ensures stable construction quality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for simultaneous asphalt paving and compaction, comprising a trailer, wherein the trailer is equipped with a working mechanism for achieving simultaneous asphalt paving and compaction, the working mechanism comprising:

[0007] The paving assembly includes a mixing drum fixed to the rear end of the top of a trailer, and the inner wall of the mixing drum is equipped with auger blades;

[0008] The compaction assembly includes a fixed frame fixed to the rear end of the trailer, a movable frame pivotally connected to the upper rear end of the fixed frame, an axle fixed to the lower end of the movable frame, a vibrating steel wheel installed between the two ends of the axle, and hydraulic cylinders pivotally connected to both sides of the lower rear end of the fixed frame, with the output end of the hydraulic cylinders pivotally connected to the movable frame.

[0009] Preferably, the paving assembly further includes a feed inlet fixed above the front end of the mixing drum, a discharge outlet at the rear end of the mixing drum, a drive device installed in the middle of the top of the trailer for controlling the rotation of the mixing drum, and a heating device installed at the front end of the top of the trailer for heating the inside of the mixing drum.

[0010] Preferably, the paving assembly further includes a bracket fixed below the rear end of the trailer, with a material ramp fixed at the upper end of the bracket, and the material ramp is located directly below the discharge port.

[0011] Preferably, the paving assembly further includes a roller ring fixed to the outer wall of the mixing drum, and axle seats are fixed on both sides of the top of the trailer, with a support roller rotatably mounted on the axle seats and cooperating with the roller ring.

[0012] Preferably, the paving assembly further includes a protective cover fixed to the trailer, and the protective cover covers the mixing drum.

[0013] Preferably, the vibrating steel wheel is provided with an eccentric vibration mechanism inside, and the fixed frame is equipped with a vibration controller electrically connected to the vibrating steel wheel for adjusting the vibration frequency and amplitude of the vibrating steel wheel.

[0014] Beneficial effects

[0015] This invention provides a device for simultaneous asphalt paving and compaction. Compared with the prior art, it has the following advantages:

[0016] 1. The system employs a linkage design between the movable frame and the hydraulic cylinder, enabling the vibratory steel wheel to adapt to road surface undulations and ensuring uniform distribution of compaction force. The entire device achieves simultaneous paving and compaction operations, effectively solving the temperature loss problem caused by traditional step-by-step construction and significantly improving construction efficiency and quality. By adjusting the working parameters of the eccentric vibration mechanism in real time through the vibration controller, combined with the pressure control of the hydraulic cylinder, the optimal compaction effect of asphalt mixture under different working conditions is achieved. This ensures the consistency of compacted material quality and avoids material damage caused by over-compaction, making the entire compaction process more stable and reliable.

[0017] 2. The pitch of the spiral blades inside the mixing drum gradually decreases from the feed end to the discharge end, achieving efficient mixing and uniform conveying of asphalt mixture; the spiral blades adopt a variable pitch design, pushing the mixture into the drum to maintain the mixing state when rotating forward, and pushing the mixture towards the discharge port to achieve unloading when rotating in reverse; the heating equipment adopts a surrounding hot air circulation system, which can be used with temperature sensors to achieve precise control of the internal temperature of the mixing drum. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the rear end structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the front end of the present invention;

[0020] Figure 3 This is a schematic diagram of the paving component in this utility model;

[0021] Figure 4 This is a schematic diagram of the compaction component in this utility model.

[0022] In the diagram: 1. Trailer; 2. Working mechanism; 21. Paving component; 211. Mixing drum; 212. Feed inlet; 213. Discharge outlet; 214. Drive unit; 215. Heating unit; 216. Support frame; 217. Material slope; 218. Roller ring; 219. Shaft seat; 2110. Support roller; 2111. Protective cover; 22. Compaction component; 221. Fixed frame; 222. Movable frame; 223. Shaft frame; 224. Vibrating steel wheel; 225. Hydraulic cylinder. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a device for simultaneous asphalt paving and compaction, including a trailer 1, on which a working mechanism 2 is installed to realize simultaneous asphalt paving and compaction. The working mechanism 2 includes:

[0025] The paving assembly 21 includes a mixing drum 211 fixed to the rear end of the top of the trailer 1, and the inner wall of the mixing drum 211 is equipped with spiral blades.

[0026] The compaction assembly 22 includes a fixed frame 221 fixed to the rear end of the trailer 1, a movable frame 222 pivotally connected to the upper rear end of the fixed frame 221, an axle frame 223 fixed to the lower end of the movable frame 222, a vibrating steel wheel 224 installed between the two ends of the axle frame 223, and hydraulic cylinders 225 pivotally connected to both sides of the lower rear end of the fixed frame 221, with the output end of the hydraulic cylinder 225 pivotally connected to the movable frame 222.

[0027] In this implementation plan, the linkage design of the movable frame 222 and the hydraulic cylinder 225 is adopted, which enables the vibrating steel wheel 224 to adapt to the undulation of the road surface and ensure the uniform distribution of compaction force. The whole set of equipment realizes the synchronous operation of paving and compaction, effectively solves the temperature loss problem caused by traditional step-by-step construction, and greatly improves construction efficiency and quality.

[0028] Specifically, the paving assembly 21 also includes a feed inlet 212 fixed above the front end of the mixing drum 211, a discharge outlet 213 provided at the rear end of the mixing drum 211, a drive device 214 installed in the middle of the top of the trailer 1 for controlling the rotation of the mixing drum 211, and a heating device 215 installed at the front end of the top of the trailer 1 for heating the inside of the mixing drum 211.

[0029] In this embodiment, the pitch of the spiral blades inside the mixing drum 211 gradually decreases from the feed end to the discharge end, thereby achieving efficient mixing and uniform conveying of the asphalt mixture. The spiral blades adopt a variable pitch design, which pushes the mixture into the drum to maintain the mixing state when rotating forward, and pushes the mixture towards the discharge port to achieve unloading when rotating in reverse. The heating device 215 adopts a hot air circulation system arranged in a ring, which can be used with a temperature sensor to achieve precise control of the internal temperature of the mixing drum 211.

[0030] Specifically, the paving component 21 also includes a bracket 216 fixed below the rear end of the trailer 1, with a material ramp 217 fixed at the upper end of the bracket 216, and the material ramp 217 is located directly below the discharge port 213.

[0031] In this embodiment, the stable support of the bracket 216 and the guiding effect of the material slope 217 ensure that the asphalt mixture discharged from the outlet 213 can be spread smoothly and evenly on the road surface, avoiding the accumulation and segregation of the mixture.

[0032] Specifically, the paving assembly 21 also includes a roller 218 fixed to the outer wall of the mixing drum 211, and a shaft seat 219 fixed on both sides of the top of the trailer 1. A support roller 2110 is rotatably mounted on the shaft seat 219 and cooperates with the roller 218.

[0033] In this embodiment, the cooperation between the rolling ring 218 and the support roller 2110 provides stable rotational support for the stirring drum 211, effectively reducing operating resistance and ensuring the stability of the stirring process.

[0034] Specifically, the paving assembly 21 also includes a protective cover 2111 fixed to the trailer 1, and the protective cover 2111 covers the mixing drum 211.

[0035] In this embodiment, the protective cover 2111 adopts a double-layer heat insulation structure, which effectively blocks the heat loss during the mixing process and maintains the working temperature of the asphalt mixture.

[0036] Specifically, the vibrating steel wheel 224 is equipped with an eccentric vibration mechanism, and the fixed frame 221 is equipped with a vibration controller that is electrically connected to the vibrating steel wheel 224 and is used to adjust the vibration frequency and amplitude of the vibrating steel wheel 224.

[0037] In this embodiment, the working parameters of the eccentric vibration mechanism are adjusted in real time by the vibration controller, and the pressure control of the hydraulic cylinder 225 is combined to achieve the best compaction effect of asphalt mixture under different working conditions. This ensures the consistency of compacted material quality and avoids material damage caused by over-compaction, making the entire compaction process more stable and reliable.

[0038] The working principle and usage process of this utility model are as follows: First, the pitch of the spiral blades inside the mixing drum 211 gradually decreases from the feed end to the discharge end, thereby achieving efficient mixing and uniform conveying of the asphalt mixture; the spiral blades adopt a variable pitch design, which pushes the mixture into the drum to maintain the mixing state when rotating forward, and pushes the mixture towards the discharge port to achieve unloading when rotating in reverse; the heating device 215 adopts a hot air circulation system arranged in a ring, which can be used with a temperature sensor to achieve precise control of the internal temperature of the mixing drum 211;

[0039] The stable support of the bracket 216 and the guiding effect of the material slope 217 ensure that the asphalt mixture discharged from the discharge port 213 can be laid smoothly and evenly on the road surface, avoiding the accumulation and segregation of the mixture.

[0040] The linkage design of the movable frame 222 and the hydraulic cylinder 225 enables the vibrating steel wheel 224 to adapt to road surface undulations, ensuring a uniform distribution of compaction force. The entire device achieves simultaneous paving and compaction operations, effectively solving the temperature loss problem caused by traditional step-by-step construction, and significantly improving construction efficiency and quality. By adjusting the working parameters of the eccentric vibration mechanism in real time through the vibration controller, and cooperating with the pressure control of the hydraulic cylinder 225, the optimal compaction effect of asphalt mixture under different working conditions is achieved, which not only ensures the consistency of compacted mass, but also avoids material damage caused by over-compaction, making the entire compaction process more stable and reliable.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for simultaneous asphalt paving and compaction, comprising a trailer (1), characterized in that: The trailer (1) is equipped with a working mechanism (2) for simultaneous asphalt paving and compaction. The working mechanism (2) includes: The paving assembly (21) includes a mixing drum (211) fixed to the rear end of the top of the trailer (1), and the inner wall of the mixing drum (211) is equipped with helical blades; The compaction assembly (22) includes a fixed frame (221) fixed to the rear end of the trailer (1), a movable frame (222) pivotally connected to the upper rear end of the fixed frame (221), an axle frame (223) fixed to the lower end of the movable frame (222), a vibrating steel wheel (224) installed between the two ends of the axle frame (223), and hydraulic cylinders (225) pivotally connected to both sides of the lower rear end of the fixed frame (221), and the output end of the hydraulic cylinder (225) is pivotally connected to the movable frame (222).

2. The asphalt paving and compaction synchronous operation device according to claim 1, characterized in that: The paving assembly (21) also includes a feed inlet (212) fixed above the front end of the mixing drum (211), a discharge outlet (213) provided at the rear end of the mixing drum (211), a drive device (214) installed in the middle of the top of the trailer (1) for controlling the rotation of the mixing drum (211), and a heating device (215) installed at the front end of the top of the trailer (1) for heating the inside of the mixing drum (211).

3. The asphalt paving and compaction synchronous operation device according to claim 1, characterized in that: The paving assembly (21) also includes a bracket (216) fixed below the rear end of the trailer (1), with a material ramp (217) fixed at the upper end of the bracket (216), and the material ramp (217) is located directly below the discharge port (213).

4. The asphalt paving and compaction synchronous operation device according to claim 1, characterized in that: The paving assembly (21) also includes a roller (218) fixed to the outer wall of the mixing drum (211), and a shaft seat (219) fixed on both sides of the top of the trailer (1). A support roller (2110) is rotatably mounted on the shaft seat (219) and cooperates with the roller (218).

5. The asphalt paving and compaction synchronous operation device according to claim 1, characterized in that: The paving assembly (21) also includes a protective cover (2111) fixed to the trailer (1) and the protective cover (2111) covers the mixing drum (211).

6. The asphalt paving and compaction synchronous operation device according to claim 1, characterized in that: An eccentric vibrator is installed inside the vibrating steel wheel (224), and a vibration controller electrically connected to the vibrating steel wheel (224) is installed on the fixed frame (221) to adjust the vibration frequency and amplitude of the vibrating steel wheel (224).

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