A paving machine for paving asphalt

Abstract

The utility model relates to road surface construction technical field, concretely is a kind of road surface asphalt paving equipment. It includes road roller main body and protective device. The front and rear end of road roller main body is equipped with steel wheel mounting bracket, and the vibration steel wheel is installed on the steel wheel mounting bracket of both sides, and vibration steel wheel is rotatably installed on steel wheel mounting bracket by pivot;Protective device includes arc baffle and the horizontal plate connected with the one end of arc baffle, and the power component for driving arc baffle rotation is installed on steel wheel mounting bracket. In the utility model, the arc baffle and horizontal plate formed isolation barrier when rolling, can prevent staff and passerby be rolled into vibration steel wheel inside, avoid the occurrence of safety accident, reduce construction risk.

Description

Technical Field

[0001] This utility model relates to the field of road construction technology, and in particular to a road asphalt paving equipment. Background Technology

[0002] Asphalt concrete pavement compaction equipment is used to lay asphalt concrete on the road surface and compact it. Road compaction equipment belongs to the category of road equipment in engineering machinery. It is widely used in the filling and compaction operations of large-scale engineering projects such as high-grade highways, railways, airport runways, dams, and stadiums. It can compact sandy, semi-cohesive and cohesive soils, roadbed stabilized soil and asphalt concrete pavement layers. The road roller uses its own gravity to be suitable for various compaction operations, causing permanent deformation and densification of the compacted layer.

[0003] Traditional asphalt paving equipment has many problems during the compaction process: there are significant safety hazards during operation, traditional equipment lacks effective protective devices, and construction workers are easily caught inside the steel wheel during operation, causing serious personal injury accidents. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a road asphalt paving device.

[0005] The technical solution of this utility model is a road asphalt paving device, comprising: The main body of the road roller is equipped with steel wheel mounting frames at both the front and rear ends. Vibrating steel wheels are mounted on the steel wheel mounting frames on both sides. The vibrating steel wheels are rotatably mounted on the steel wheel mounting frames via a rotating shaft. The protective device includes an arc-shaped shield and a horizontal plate connected to one end of the arc-shaped shield. Both ends of the arc-shaped shield and the horizontal plate are connected to reinforcing side plates. Rotating rings are provided on both sides of the arc-shaped shield. A connecting frame is connected between the rotating rings and the arc-shaped shield. The two arc-shaped shields are rotatably mounted on both ends of the rotating shaft. A power component for driving the arc-shaped shield to rotate is mounted on the steel wheel mounting frame.

[0006] Preferably, a flatness detection device is installed on the horizontal plate located at the rear of the road roller body. The flatness detection device includes a rectangular frame, two infrared ranging sensors, and multiple sets of detection components arranged side by side. The two ends of the rectangular frame are respectively connected to two reinforcing side plates. The detection components include a vertical rod, a ball bearing that is rolled on the bottom of the vertical rod, and a movable crossbar connected to the upper end of the vertical rod. The vertical rod is slidably mounted on the rectangular frame. A mounting hole is opened on one side of the reinforcing side plate, and the two infrared ranging sensors are installed inside the mounting hole.

[0007] Preferably, the power assembly includes a servo geared motor, a gear, and a gear ring. The servo geared motor is mounted on a steel wheel mounting bracket, the gear is mounted on the output shaft of the servo geared motor, and the gear ring is mounted on the outer circumference of the rotating ring and meshes with the gear.

[0008] Preferably, gear housings are installed on the steel wheel mounting brackets on both sides, and the gears and gear rings on the corresponding sides are located inside the gear housings.

[0009] Preferably, scrapers are inclinedly provided on the sides of both vibrating steel wheels, and the two scrapers are respectively connected to the mounting brackets of the steel wheels on both sides, and the two scrapers are in an inverted V-shape.

[0010] Preferably, when the horizontal plate is rotated to be parallel to the road surface, there is a gap between its bottom surface and the bottom end of the vibrating steel wheel.

[0011] Compared with the prior art, the present invention has the following beneficial technical effects: 1. The two vibrating steel wheels can be used to compact the road surface twice. The first compaction is used to initially compact the road surface, and the second compaction can further improve the compaction and smoothness of the road surface, effectively ensuring the construction quality of the road. 2. The arc-shaped baffle and horizontal plate form an isolation barrier during road rolling, which can prevent workers and pedestrians from being caught inside the vibrating steel wheel, avoid safety accidents, and reduce construction risks; after the work is completed, the horizontal plate is driven back to the vertical position to avoid road obstacles from damaging it. Attached Figure Description

[0012] Figure 1 and Figure 2 All of these are schematic diagrams of the structure of this utility model; Figure 3 This is a schematic diagram of the structure of the vibrating steel wheel and the steel wheel mounting frame in this utility model; Figure 4 This is a schematic diagram of the rectangular frame and detection components in this utility model; Figure 5 for Figure 2 A magnified schematic diagram of the structure at point A.

[0013] Reference numerals in the attached drawings: 1. Roller body; 2. Vibratory steel wheel; 3. Shaft; 4. Arc-shaped guard; 5. Horizontal plate; 6. Steel wheel mounting frame; 7. Servo geared motor; 8. Rotary ring; 9. Gear; 10. Gear ring; 11. Gear housing; 12. Connecting frame; 13. Scraper; 14. Reinforced side plate; 15. Rectangular frame; 16. Vertical rod; 17. Ball bearing; 18. Moving crossbar; 19. Infrared ranging sensor. Detailed Implementation

[0014] Example 1; as Figures 1-3As shown in the figure, the road asphalt paving equipment proposed in this embodiment includes a road roller body 1 and a protective device; The front and rear ends of the road roller body 1 are equipped with steel wheel mounting frames 6, and vibrating steel wheels 2 are installed on the steel wheel mounting frames 6 on both sides. The vibrating steel wheels 2 are rotatably mounted on the steel wheel mounting frames 6 via a rotating shaft 3.

[0015] The protective device includes an arc-shaped shield 4 and a horizontal plate 5 connected to one end of the arc-shaped shield 4. When the horizontal plate 5 rotates to be parallel to the road surface, there is a gap between its bottom surface and the bottom end of the vibrating steel wheel 2. Reinforcing side plates 14 are connected to both ends of the arc-shaped shield 4 and the horizontal plate 5. Rotating rings 8 are provided on both sides of the arc-shaped shield 4. A connecting frame 12 is connected between the rotating rings 8 and the arc-shaped shield 4. The two arc-shaped shields 4 are respectively rotatably mounted at both ends of the rotating shaft 3. A device for driving the arc-shaped shield 4 to rotate is installed on the steel wheel mounting frame 6. The moving power component includes a servo geared motor 7, a gear 9, and a gear ring 10. The servo geared motor 7 is mounted on a steel wheel mounting bracket 6, the gear 9 is mounted on the output shaft of the servo geared motor 7, and the gear ring 10 is mounted on the outer circumference of the rotating ring 8 and meshes with the gear 9. Gear housings 11 are mounted on both sides of the steel wheel mounting bracket 6. The gear 9 and gear ring 10 on the corresponding sides are located inside the gear housings 11. The gear housings 11 enclose the gear 9 and gear ring 10 inside, which serves to protect them and prevent dust.

[0016] Both vibrating steel wheels 2 are equipped with scrapers 13 at an angle on their sides. The two scrapers 13 are connected to the steel wheel mounting brackets 6 on both sides respectively, and the two scrapers 13 are in an inverted V-shape. This arrangement allows the scraped-off material to fall between the two vibrating steel wheels 2.

[0017] The working principle of this technical solution is as follows: This technical solution includes two vibrating steel wheels 2, enabling secondary compaction of the road surface. After asphalt paving, the first compaction initially compacts the road surface, while the second compaction further improves the compaction and smoothness. When the servo reduction motor 7 is started, its output shaft drives the gear 9 to rotate, which in turn drives the gear ring 10 to rotate, thereby causing the rotating ring 8 to rotate, thus achieving the rotation of the arc-shaped baffle 4. During the rolling process, the power component drives the arc-shaped baffle 4 to rotate, keeping the horizontal plate 5 in a horizontal state. At this time, the arc-shaped baffle 4 and the horizontal plate 5 form an isolation barrier, preventing workers from being caught inside the vibrating steel wheel 2, thus avoiding danger. If a pedestrian accidentally slips on the front side of the vibrating steel wheel 2, they may fall onto the horizontal plate 5, reducing the risk of injury to construction workers. After the work is completed, the arc-shaped baffle 4 is driven back to its original position, keeping the horizontal plate 5 in a vertical state. This prevents road obstacles from damaging the horizontal plate 5 and the arc-shaped baffle 4 during the movement of the roller body 1.

[0018] During the rolling process of the vibratory steel wheel 2, the scraper 13 can scrape away the asphalt and other debris adhering to the side of the vibratory steel wheel 2, keeping the side of the vibratory steel wheel 2 clean and ensuring the normal rolling and compaction effect of the vibratory steel wheel 2.

[0019] Example 2; as Figure 2 , Figure 4 as well as Figure 5 As shown in the figure, the road asphalt paving equipment proposed in this embodiment, compared with the first embodiment, has a smoothness detection device installed on the horizontal plate 5 located behind the main body 1 of the roller. The smoothness detection device includes a rectangular frame 15, two infrared ranging sensors 19 and multiple sets of detection components arranged side by side. The two ends of the rectangular frame 15 are respectively connected to two reinforcing side plates 14. The detection components include a vertical rod 16, a ball bearing 17 rolled on the bottom end of the vertical rod 16 and a movable crossbar 18 connected to the upper end of the vertical rod 16. The vertical rod 16 is vertically slidably installed on the rectangular frame 15. An installation hole is opened on one side of the reinforcing side plate 14, and the two infrared ranging sensors 19 are installed inside the installation hole.

[0020] In this embodiment, when the road surface is relatively flat, multiple moving crossbars 18 are all at the same height, and at this time, two infrared ranging sensors 19 are located above and below the moving crossbars 18 respectively. During the forward movement of the roller body 1, the ball bearings 17 roll on the road surface, and the vertical bar 16 slides vertically on the rectangular frame 15 with the undulation of the road surface. If there are potholes on the road surface, the corresponding vertical bar 16 will slide downward under the action of gravity, which will drive the moving crossbars 18 to move downward. When the moving crossbars 18 move downward to a certain position, they will block the detection end of the infrared ranging sensor 19 located at the bottom. The infrared ranging sensor 19 will feed back the signal to the PLC controller inside the roller body 1. After receiving the signal, the PLC controller can remind the operator to pay attention to the road surface condition of the area according to the preset program. If there are bumps on the road surface, the corresponding vertical bar 16 will move upward, which will drive the moving crossbars 18 to move upward. At this time, the moving crossbars 18 will be detected by the infrared ranging sensor 19 located at the top, and the infrared ranging sensor 19 will feed back the signal to the PLC controller.

[0021] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A road asphalt paving device, characterized in that, include: The main body of the road roller (1) is equipped with steel wheel mounting frames (6) at both the front and rear ends. Vibrating steel wheels (2) are installed on the steel wheel mounting frames (6) on both sides. The vibrating steel wheels (2) are mounted on the steel wheel mounting frames (6) by rotating shaft (3). The protective device includes an arc-shaped shield (4) and a horizontal plate (5) connected to one end of the arc-shaped shield (4). Both ends of the arc-shaped shield (4) and the horizontal plate (5) are connected to reinforcing side plates (14). Both sides of the arc-shaped shield (4) are provided with rotating rings (8). A connecting frame (12) is connected between the rotating rings (8) and the arc-shaped shield (4). The two arc-shaped shields (4) are respectively rotatably installed at both ends of the rotating shaft (3). A power component for driving the arc-shaped shield (4) to rotate is installed on the steel wheel mounting frame (6).

2. The asphalt paving equipment according to claim 1, characterized in that, A flatness detection device is installed on the horizontal plate (5) located behind the main body (1) of the road roller. The flatness detection device includes a rectangular frame (15), two infrared ranging sensors (19) and multiple sets of detection components arranged side by side. The two ends of the rectangular frame (15) are connected to two reinforcing side plates (14) respectively. The detection components include a vertical rod (16), a ball bearing (17) that is rolled on the bottom end of the vertical rod (16) and a movable crossbar (18) that is connected to the upper end of the vertical rod (16). The vertical rod (16) is vertically slidably installed on the rectangular frame (15). An installation hole is opened on one side of the reinforcing side plate (14). The two infrared ranging sensors (19) are installed inside the installation hole.

3. The asphalt paving equipment according to claim 1, characterized in that, The power assembly includes a servo geared motor (7), a gear (9) and a gear ring (10). The servo geared motor (7) is mounted on a steel wheel mounting bracket (6), the gear (9) is mounted on the output shaft of the servo geared motor (7), and the gear ring (10) is mounted on the outer circumference of the rotating ring (8) and meshes with the gear (9).

4. The asphalt paving equipment according to claim 3, characterized in that, Gear housings (11) are installed on both sides of the steel wheel mounting brackets (6), and the gears (9) and gear rings (10) on the corresponding sides are located inside the gear housings (11).

5. The asphalt paving equipment according to claim 1, characterized in that, Both vibrating steel wheels (2) are provided with scrapers (13) at an angle on their sides. The two scrapers (13) are connected to the steel wheel mounting brackets (6) on both sides respectively, and the two scrapers (13) are in the shape of an inverted V.

6. The asphalt paving equipment according to claim 1, characterized in that, When the horizontal plate (5) rotates to be parallel to the road surface, there is a gap between its bottom surface and the bottom end of the vibrating steel wheel (2).

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