Asphalt pavement paving device

Abstract

The utility model discloses an asphalt pavement paving device in the field of road construction equipment, the asphalt pavement paving device comprises a flattening plate and a cleaning assembly, the cleaning assembly comprises a supporting rod and a scraper, the two ends of the supporting rod are provided with connecting plates, the lower parts of the connecting plates are rotatably connected with screw rods, the screw rods are connected with servo motors through couplings, and the servo motors are mounted on the connecting plates; threaded sleeves are connected to the two ends of the scraper and connected to the two lead screws in a threaded mode respectively. The two connecting plates are arranged on the two sides of the flattening plate in an up-down moving mode, the ends of the connecting plates and the ends of the lead screws exceed the ends of the flattening plate, the supporting rod is arranged above the flattening plate in a lifting mode, and when the flattening plate is cleaned, the supporting rod descends to make the scraper make contact with the bottom of the flattening plate. When the flattening plate works, the supporting rod is lifted to enable the scraper to move upwards from the end of the flattening plate to be higher than the bottom of the flattening plate. The scheme replaces manpower to clean asphalt of the flattening plate, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of road construction equipment, and particularly relates to an asphalt pavement paving device. Background Art

[0002] An asphalt pavement refers to a road paved with road asphalt materials in mineral materials. The asphalt pavement has good high-temperature stability, low-temperature crack resistance and excellent anti-fatigue performance, and can resist the damage of driving and natural factors to the road surface, making the road surface flat, less dusty, waterproof and durable. During the paving process of the asphalt pavement, a paving device is needed for paving. A paver is an important machine for paving asphalt pavements. Generally, there are three processes in the paving process. The first process is spreading, the second process is preliminary compaction, and the third process is road surface compaction. The corresponding structures for the three processes are a screed board, a pressing plate and a flattening roller. The structures of such pavers are similar. For example, a paving device for a highly viscous asphalt modifier permeable asphalt pavement with the publication number CN215593584U combines the two processes of initial compaction paving and trimming. The asphalt is driven to move by a feeding component, and the asphalt falls from the discharge port to the ground to be paved. At the same time, the device moves and drives the screed board to move. The screed board spreads the asphalt falling on the ground. The pressing plate that moves up and down preliminarily compacts the road surface spread by the screed board, and the flattening roller further compacts the preliminarily compacted road surface, further improving the paving effect and paving quality of the asphalt pavement.

[0003] In the preliminary compaction process, the asphalt is still relatively loose. Since the pressing plate is in direct contact with the asphalt and has a certain pressure, after the paving operation is completed, a lot of asphalt will adhere to the bottom of the pressing plate. If it is not cleaned in time and the asphalt solidifies, the solidified asphalt will make the bottom surface of the pressing plate uneven, affecting the subsequent paving operation. And to clean it, the flat plate needs to be disassembled and cleaned, or the worker has to squat down and use a cleaning agent to scrub the bottom of the screed board. Obviously, such a cleaning method has low efficiency and high labor intensity for the worker. Therefore, the current cleaning work of the pressing plate is very inconvenient. Content of the Utility Model

[0004] The utility model aims to provide an asphalt pavement paving device to solve the problems of low efficiency and high working intensity of manually cleaning the pressing plate in the prior art.

[0005] An asphalt pavement paving device in this solution includes a pressing plate and a cleaning component. The cleaning component includes a support rod and a scraper. Connecting plates are provided at both ends of the support rod. A lead screw is rotatably connected below the connecting plates. The lead screw is connected to a servo motor through a coupling. The servo motor is installed on the connecting plate. Threaded sleeves are connected to both ends of the scraper, and the threaded sleeves are respectively threadedly connected to the two lead screws;

[0006] The two connecting plates are arranged on both sides of the pressing plate in a vertically movable manner, and the ends of the connecting plates and the screw rods extend beyond the ends of the pressing plate. The supporting rod is arranged above the pressing plate in a vertically movable manner. When cleaning the pressing plate, the supporting rod is lowered so that the scraper contacts the bottom of the pressing plate. When the pressing plate is working, the supporting rod is raised so that the scraper moves upward from the end of the pressing plate to a position higher than the bottom of the pressing plate.

[0007] The working principle of this solution is as follows: When cleaning the pressing plate, asphalt cleaner or diesel is sprayed and adsorbed on the lower surface of the pressing plate and soaked for a certain period of time to soften the asphalt and reduce the adhesion of the asphalt to the pressing plate. Then, the supporting rod is lowered so that the scraper contacts the bottom of the pressing plate. The servo motor drives the screw rod to rotate, and the scraper reciprocates on the lower surface of the pressing plate to scrape off the asphalt.

[0008] When the pressing plate is working, the scraper moves to a position beyond the end of the pressing plate, and then the supporting rod is raised so that the scraper moves upward from the end of the pressing plate to a position higher than the bottom of the pressing plate, and the supporting rod remains in the raised state.

[0009] This solution replaces manual cleaning of the asphalt on the pressing plate and improves the cleaning efficiency.

[0010] Further, the connecting plate is longitudinally slidably connected to the pressing plate. By means of the sliding connection, the lateral sliding of the connecting plate is restricted, which helps the scraper to work orderly and stably when cleaning the pressing plate.

[0011] Further, a support groove parallel to the supporting rod is provided on the pressing plate. When cleaning the pressing plate, the supporting rod is located in the support groove. It plays a positioning role. When the supporting rod is placed in the support groove, the scraper can just contact the bottom of the pressing plate.

[0012] Further, a support block is slidably connected to the top of the pressing plate, and the sliding direction of the support block is perpendicular to the length direction of the supporting rod. When the pressing plate is working, after the supporting rod is lifted to drive the scraper to move upward, the support block is slid under the supporting rod to support the supporting rod, and the supporting rod is maintained in the lifted position with a simple structure.

[0013] Further, a limiting groove matching the supporting rod is provided on the support block. The supporting rod is located in the limiting groove during the process of remaining lifted. At the same time, because the connecting plate connected to the supporting rod cannot slide laterally, they cooperate with each other to lock the sliding of the support block, avoiding the support block sliding easily due to the inclination or vibration of the road surface during the working process of the pressing plate, and avoiding the misalignment of the support block and the supporting rod resulting in the failure of the supporting function.

[0014] Further, cutting edges are provided on both sides of the scraper. In the case where cutting edges are provided on both sides, during the process of the scraper reciprocating under the pressing plate, the residual asphalt on the pressing plate can be scraped off.

[0015] Further, the blade is a serrated blade. The force application points of the serrated blade are concentrated, making it easier to scrape the asphalt.

[0016] Further, the serrated blades on both sides of the scraper are offset from each other along the length direction of the scraper. The offset serrated blades can scrape the asphalt missed by each other, improving the cleaning efficiency and cleanliness. Description of the Drawings

[0017] Figure 1 It is the front view when the pressing plate works in an asphalt pavement paving device of the present utility model;

[0018] Figure 2 It is the front view when cleaning the pressing plate in an asphalt pavement paving device of the present utility model. Detailed Description of the Embodiment

[0019] The following is further detailed through specific embodiments:

[0020] The reference numerals in the drawings of the specification include: scraper 1, serrated blade 2, lead screw 3, connecting plate 4, support rod 5, pressing plate 6, support groove 7, support block 8, sliding bar 9.

[0021] The embodiment is basically as shown in the attached Figure 1 , Figure 2 : An asphalt pavement paving device includes a pressing plate 6 and a cleaning assembly. The cleaning assembly includes a support rod 5 and a scraper 1. Connecting plates 4 are provided at both ends of the support rod 5. A lead screw 3 is rotatably connected below the connecting plate 4. The lead screw 3 is connected to a servo motor through a coupling. The servo motor is installed on the connecting plate 4. Threaded sleeves are connected to both ends of the scraper 1, and the threaded sleeves are respectively threadedly connected to the two lead screws 3; the two connecting plates 4 are arranged to move up and down on both sides of the pressing plate 6, and the connecting plate 4 and the pressing plate 6 are slidably connected through a longitudinal sliding bar 9. The ends of the connecting plate 4 and the lead screw 3 both extend beyond the ends of the pressing plate 6. The support rod 5 is arranged to move up and down above the pressing plate 6. A support groove 7 parallel to the support rod 5 is provided on the pressing plate 6. When cleaning the pressing plate 6, the support rod 5 is located in the support groove 7. A support block 8 is slidably connected to the top of the pressing plate 6. The sliding direction of the support block 8 is perpendicular to the length direction of the support rod 5. A limiting groove matching the support rod 5 is provided on the support block 8. When cleaning the pressing plate 6, the support rod 5 is lowered so that the scraper 1 contacts the bottom of the pressing plate 6. When the pressing plate 6 works, the support rod 5 is raised so that the scraper 1 moves upward from the end of the pressing plate 6 to a position higher than the bottom of the pressing plate 6.

[0022] Serrated blades are provided on both sides of the scraper 1, and the serrated blades 2 on both sides of the scraper 1 are offset from each other along the length direction of the scraper 1.

[0023] Similar to a paving device for a highly viscous asphalt modifier permeable asphalt pavement with the announcement number of "CN215593584U", the center of the top of the pressing plate 6 is connected to the paver through a lifting mechanism.

[0024] The specific implementation process is as follows: When the pressing plate 6 is working, the scraper 1 moves to a position beyond the end of the pressing plate 6, and then the support rod 5 is lifted to drive the scraper 1 to move upward, and then the support block 8 is slid under the support rod 5 to support the support rod 5.

[0025] When cleaning the pressing plate 6, asphalt cleaner or diesel is sprayed and adsorbed on the lower surface of the pressing plate 6 for a certain period of time to soften the asphalt and reduce the adhesion of the asphalt to the pressing plate 6. Then, the support block 8 is slid away, the support rod 5 is lowered so that the scraper 1 contacts the bottom of the pressing plate 6, and the servo motor drives the screw rod 3 to rotate, driving the scraper 1 to reciprocate on the lower surface of the pressing plate 6 to scrape off the asphalt.

Claims

1. An asphalt pavement paving device, characterized in that: It includes a flattening plate and a cleaning component. The cleaning component includes a support rod and a scraper. Connecting plates are provided at both ends of the support rod. A lead screw is rotatably connected below the connecting plate. The lead screw is connected to a servo motor through a coupling. The servo motor is installed on the connecting plate. Threaded sleeves are connected to both ends of the scraper and are respectively threadedly connected to the two lead screws. The two connecting plates are arranged to move up and down on both sides of the flattening plate, and the ends of the connecting plate and the lead screw extend beyond the ends of the flattening plate. The support rod is arranged to move up and down above the flattening plate. When cleaning the flattening plate, the support rod is lowered so that the scraper contacts the bottom of the flattening plate. When the flattening plate is working, the support rod is raised so that the scraper moves upward from the end of the flattening plate to a position higher than the bottom of the flattening plate.

2. The paving device for asphalt pavement according to claim 1, characterized in that: The connecting plate is longitudinally slidably connected to the flattening plate.

3. The paving device for asphalt pavement according to claim 2, characterized in that: A support groove parallel to the support rod is provided on the flattening plate. When cleaning the flattening plate, the support rod is located in the support groove.

4. The paving device for asphalt pavement according to claim 3, characterized in that: A support block is slidably connected to the top of the flattening plate, and the sliding direction of the support block is perpendicular to the length direction of the support rod.

5. The paving device for asphalt pavement according to claim 4, characterized in that: A limit groove matching the support rod is provided on the support block.

6. A paving device for asphalt pavement according to any one of claims 1 to 5, characterized in that: Blades are provided on both sides of the scraper.

7. An asphalt pavement paving device according to claim 6, characterized in that: The blades are serrated blades.

8. A paving device for asphalt pavement according to claim 7, characterized in that: The serrated blades on both sides of the scraper are offset from each other along the length direction of the scraper.

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