Asphalt compaction device for highway construction and working method thereof

Abstract

The invention relates to an asphalt compacting device for highway construction and a working method thereof.The asphalt compacting device comprises a road rolling vehicle, road rolling rollers, a balance weight mechanism and a material uniformizing mechanism, the two road rolling rollers are installed on the road rolling vehicle, the balance weight mechanism is installed at the tail of the road rolling vehicle, and the material uniformizing mechanism is installed at the head of the road rolling vehicle; the counterweight mechanism is arranged at the tail position of the road rolling vehicle, so that in the asphalt compaction process, water is added into the counterweight mechanism to increase weight, the tail counterweight is increased, the overall weight of the road rolling vehicle can be increased, the static linear pressure on the ground is enhanced, soil, asphalt and other materials are more easily compacted, slipping is prevented, and the service life of the road rolling vehicle is prolonged. When the road rolling vehicle works on an abrupt slope or a soft ground, if the front part of the road rolling vehicle sinks, the balance weight at the tail part of the road rolling vehicle can prevent the vehicle body from leaning backwards and warping, so that the safety is improved; and meanwhile, when the vehicle is driven and moved in a non-working state, water in the counterweight mechanism is drained to reduce weight, so that the mass of the whole vehicle is greatly reduced, and a driving road is prevented from being crushed.

Description

Technical Field

[0001] The present invention relates to the technical field of highway construction, and particularly relates to an asphalt compaction device for highway construction and its working method. Background Art

[0002] An asphalt compaction device is a road construction equipment belonging to the category of road equipment. 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 roll sandy, semi-viscous, and viscous soils, subgrade stabilized soils, and asphalt concrete pavement layers.

[0003] The existing asphalt compaction devices mostly use fixed cast iron blocks as counterweights, which cannot dynamically adjust the weight. There may be risks of insufficient driving force, slipping, or rearward tilting on soft or sloping road surfaces. The overall vehicle mass is large, which is likely to damage the paved road. Additional transport vehicles are required for assistance, and workers need to use shovels to assist in distributing asphalt, resulting in central accumulation and insufficient edges of the asphalt. After compaction, unevenness occurs. Manual operation poses great safety hazards in the high-temperature asphalt environment. The asphalt thickness needs to be adjusted visually by the operator, which easily results in over-thick or under-thin areas, affecting the compaction quality. Paving, trimming, and thickness adjustment all require personnel to participate, resulting in high labor intensity. Summary of the Invention

[0004] The problem solved by the present invention is to provide an asphalt compaction device for highway construction and its working method, which solves the technical problems that the existing asphalt compaction devices mostly use fixed cast iron blocks as counterweights, cannot dynamically adjust the weight, may have risks of insufficient driving force, slipping, or rearward tilting on soft or sloping road surfaces, the overall vehicle mass is large, is likely to damage the paved road, requires additional transport vehicles for assistance, requires workers to use shovels to assist in distributing asphalt, resulting in central accumulation and insufficient edges of the asphalt, unevenness occurs after compaction, manual operation poses great safety hazards in the high-temperature asphalt environment, the asphalt thickness needs to be adjusted visually by the operator, easily results in over-thick or under-thin areas, affecting the compaction quality, and paving, trimming, and thickness adjustment all require personnel to participate, resulting in high labor intensity.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An asphalt compaction device for highway construction includes a road roller vehicle, road rollers, a counterweight mechanism, and a material leveling mechanism. Two road rollers are installed on the road roller vehicle. A counterweight mechanism is installed at the rear of the road roller vehicle, and a material leveling mechanism is installed at the front of the road roller vehicle. The material leveling mechanism includes a fixed frame, and the fixed frame is connected to the road roller vehicle through a connecting frame. A rotating shaft is rotatably installed at the bottom of the fixed frame, and spiral blades with opposite spiral directions are respectively arranged at both ends of the rotating shaft. Translating frames are respectively installed at both ends of the fixed frame, and baffles are installed at the bottoms of the translating frames. A lifting plate is installed in the middle of the top side of the fixed frame, and the lifting plate is connected to a baffle inclined plate. A folded corner material plate is arranged in the middle of the bottom side of the baffle inclined plate.

[0007] Preferably, the counterweight mechanism includes a support frame installed on the road roller vehicle. A counterweight water tank is installed on the support frame, and a water inlet and outlet valve is installed on the counterweight water tank.

[0008] Preferably, a transmission box is installed at one end of the fixed frame, and a first motor is installed on the transmission box.

[0009] Preferably, chain teeth are installed at the output end of the first motor and the end of the rotating shaft inside the transmission box. The two chain teeth are connected by a chain drive.

[0010] Preferably, a shaft plate is installed in the middle of the bottom side of the fixed frame, and a threaded cylinder and a guide cylinder are installed on the shaft plate.

[0011] Preferably, the two ends of the threaded cylinder have opposite thread directions, and threaded rods are respectively installed at the two ends of the threaded cylinder in a threaded manner. Guide rods are respectively installed at the two ends of the guide cylinder in a sliding manner. The threaded rods and the guide rods penetrate through the fixed frame and are connected to the translation frame.

[0012] Preferably, a second motor is installed on the shaft plate. A rotating gear is installed at the output end of the second motor. A driven gear is arranged on the outer side of the threaded cylinder, and the driven gear meshes with the rotating gear.

[0013] Preferably, a first air cylinder is installed on the translation frame, and the telescopic end of the first air cylinder is connected to the baffle.

[0014] Preferably, a second air cylinder is installed on the lifting plate, and the telescopic end of the second air cylinder is connected to the fixed frame. A number of guide columns penetrating through the lifting plate are installed on the top side of the fixed frame.

[0015] A working method of an asphalt compaction device for road construction, the specific operation steps of the working method are as follows:

[0016] Step 1: The road roller vehicle moves, and the asphalt is compacted by the road roller. At this time, the road roller at the rear of the road roller vehicle is weighted by the counterweight mechanism. During the compaction process, water is added to the counterweight water tank through the water inlet and outlet valve to increase the weight. After the compaction is completed, the water in the counterweight water tank is discharged through the water inlet and outlet valve to reduce the weight;

[0017] Step 2: The second motor works to drive the rotating gear to rotate, which cooperates with the engaged driven gear, and then drives the threaded barrel to rotate. The threaded rod threadedly connected to the threaded barrel extends and retracts at the end of the threaded barrel. Guided by the cooperation of the guide cylinder and the guide rod, the translation frame and the baffle are driven to move, and the distance between the two baffles is adjusted to match the road width. At this time, the first air cylinder works to drive the baffle to move downward until the baffle is close to the ground. The first motor works, and the chain teeth and the chain drive, and then drive the rotating shaft and the spiral blade to rotate. As the spiral blade rotates, the asphalt in the middle position of the road is transported to both ends of the road. The second air cylinder works to drive the lifting plate to rise and fall, adjusting the heights of the material blocking inclined plate and the folding angle material plate, and then adjusting the thickness of the asphalt layer passing through. At the same time, the folding angle material plate pushes the asphalt in the middle position of the road to both sides of the road, realizing the uniform paving of the asphalt before compaction.

[0018] The beneficial effects of the present invention are as follows: By setting a counterweight mechanism at the rear of the road roller, it is convenient to add water to increase the weight during the asphalt compaction process. Increasing the rear counterweight can increase the overall weight of the road roller, enhance the static line pressure on the ground, make materials such as soil and asphalt easier to compact, and prevent slipping. It is more stable especially when operating on slopes or slippery roads. When the road roller operates on steep slopes or soft ground, if the front part sinks, the rear counterweight can prevent the body from tilting backward, improving safety; at the same time, when driving and moving during non-working hours, the water in the counterweight mechanism is drained to reduce the weight, greatly reducing the mass of the whole vehicle and avoiding damaging the driving road.

[0019] The spiral blade rotates to transport the asphalt in the center of the road to both sides, avoiding accumulation and ensuring uniform material distribution. The distance between the baffles is adjustable to adapt to different road widths, preventing asphalt from overflowing or being insufficiently paved. The folding angle material plate further pushes the asphalt to the edge, reducing the need for manual trimming, improving the paving quality, enhancing the paving uniformity, and optimizing the compaction effect.

[0020] By driving the threaded barrel and the threaded rod with the second motor, the electric width adjustment of the baffle is realized, quickly matching different lanes or construction requirements. Compared with traditional manual adjustment, the automatic operation saves time and labor costs, adapts to the road width automatically, and improves the construction efficiency.

[0021] The second air cylinder adjusts the height of the lifting plate, linking the material blocking inclined plate and the folding angle material plate, and adjusting the asphalt paving thickness in real time, avoiding material waste and ensuring that the thickness meets the design requirements.

[0022] Through the automatic material distribution of the spiral blade and the folding angle material plate, and the automatic lifting of the baffle to fit the ground, the construction safety is improved. It is especially suitable for large-area or high-temperature asphalt operations, reducing manual intervention and lowering the labor intensity. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is the first structural schematic diagram of the material leveling mechanism of the present invention;

[0025] Figure 3 This is the cross-sectional view of the transmission box of the present invention;

[0026] Figure 4 This is the second structural schematic diagram of the material leveling mechanism of the present invention;

[0027] Figure 5 This is the third structural schematic diagram of the material leveling mechanism of the present invention;

[0028] Figure 6 This is the fourth structural schematic diagram of the material leveling mechanism of the present invention.

[0029] Legend description:

[0030] 1. Road roller; 2. Road roller; 3. Counterweight mechanism; 4. Material leveling mechanism; 5. Support frame; 6. Counterweight water tank; 7. Water inlet and outlet valve; 8. Fixed frame; 9. Connecting frame; 10. Rotating shaft; 11. Spiral blade; 12. Transmission box; 13. First motor; 14. Chain teeth; 15. Second motor; 16. Rotating teeth; 17. Threaded cylinder; 18. Guide cylinder; 19. Driven teeth; 20. Threaded rod; 21. Guide rod; 22. Translation frame; 23. First air cylinder; 24. Baffle; 25. Lifting plate; 26. Second air cylinder; 27. Guide post; 28. Material baffle; 29. Folding angle material plate. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] The following gives specific embodiments.

[0033] See Figures 1 to 6, An asphalt compaction device for road construction, comprising a road roller vehicle 1, road rollers 2, a counterweight mechanism 3 and a material leveling mechanism 4. Two road rollers 2 are installed on the road roller vehicle 1, and a counterweight mechanism 3 is installed at the rear of the road roller vehicle 1. The counterweight mechanism 3 includes a support frame 5 installed on the road roller vehicle 1, a counterweight water tank 6 is installed on the support frame 5, and a water inlet and outlet valve 7 is installed on the counterweight water tank 6. By setting the counterweight mechanism 3 at the rear of the road roller vehicle 1, during the asphalt compaction process, water can be added to the counterweight mechanism 3 to increase the weight, and increasing the rear counterweight can increase the overall weight of the road roller vehicle 1, enhance the static linear pressure on the ground, make materials such as soil and asphalt easier to compact, and prevent slipping. It is more stable especially when operating on slopes or slippery roads. When the road roller vehicle 1 operates on a steep slope or soft ground, if the front part sinks, the rear counterweight can prevent the body from tilting backward, improving safety; at the same time, when driving and moving during non-working hours, the water in the counterweight mechanism 3 is drained to reduce the weight, greatly reducing the mass of the whole vehicle and avoiding damaging the driving road.

[0034] A material leveling mechanism 4 is installed at the front part of the road roller 1. The material leveling mechanism 4 includes a fixed frame 8, and the fixed frame 8 is connected to the road roller 1 through a connecting frame 9. A rotating shaft 10 is rotatably installed at the bottom of the fixed frame 8, and spiral blades 11 with opposite spiral directions are respectively arranged at both ends of the rotating shaft 10. Translation frames 22 are respectively installed at both ends of the fixed frame 8, and a baffle 24 is installed at the bottom of the translation frame 22. A lifting plate 25 is installed in the middle of the top side of the fixed frame 8, and the lifting plate 25 is connected to a material baffle inclined plate 28. A corner material plate 29 is arranged in the middle of the bottom side of the material baffle inclined plate 28. A transmission box 12 is installed at one end of the fixed frame 8, a first motor 13 is installed on the transmission box 12, and chain teeth 14 are installed at the output end of the first motor 13 and the end of the rotating shaft 10 inside the transmission box 12. The two chain teeth 14 are connected by a chain drive. A shaft plate is installed in the middle of the bottom side of the fixed frame 8, and a threaded cylinder 17 and a guide cylinder 18 are installed on the shaft plate. The threaded directions at both ends of the threaded cylinder 17 are opposite, and threaded rods 20 are respectively threadedly installed at both ends of the threaded cylinder 17. Guide rods 21 are respectively slidably installed at both ends of the guide cylinder 18. The threaded rods 20 and the guide rods 21 penetrate through the fixed frame 8 and are connected to the translation frame 22. A second motor 15 is installed on the shaft plate, a rotating gear 16 is installed at the output end of the second motor 15, a driven gear 19 is arranged on the outer side of the threaded cylinder 17, and the driven gear 19 meshes with the rotating gear 16. A first air cylinder 23 is installed on the translation frame 22, and the telescopic end of the first air cylinder 23 is connected to the baffle 24. A second air cylinder 26 is installed on the lifting plate 25, and the telescopic end of the second air cylinder 26 is connected to the fixed frame 8. A plurality of guide columns 27 penetrating through the lifting plate 25 are installed on the top side of the fixed frame 8. The spiral blades 11 rotate to convey the asphalt in the center of the road to both sides, avoiding accumulation and ensuring uniform material distribution. The distance between the baffles 24 is adjustable to adapt to different road widths, preventing asphalt from overflowing or insufficient paving. The corner material plate 29 further pushes the asphalt to the edge, reducing the need for manual trimming, improving the paving quality, enhancing the paving uniformity, optimizing the compaction effect. By driving the threaded cylinder 17 and the threaded rods 20 with the second motor 15, the electric width adjustment of the baffle 24 is realized, quickly matching different lanes or construction requirements. Compared with traditional manual adjustment, the automatic operation saves time and labor costs, adapts to the road width, and improves the construction efficiency. The second air cylinder 26 adjusts the height of the lifting plate 25, linking the material baffle inclined plate 28 and the corner material plate 29, and real-time adjusts the asphalt paving thickness, avoiding material waste and ensuring that the thickness meets the design requirements. Through the automatic material distribution of the spiral blades 11 and the corner material plate 29, and the automatic lifting of the baffle 24 to fit the ground, the construction safety is improved, especially suitable for large-area or high-temperature asphalt operations, reducing manual intervention and lowering the labor intensity.

[0035] Working principle: The road roller 1 moves, and compacts the asphalt through the compaction roller 2. At this time, the compaction roller 2 at the rear of the road roller 1 is weighted by the counterweight mechanism 3. During the compaction process, water is added to the counterweight water tank 6 through the water inlet and outlet valve 7 to increase the weight. After the compaction is completed, the water in the counterweight water tank 6 is discharged through the water inlet and outlet valve 7 to reduce the weight. The second motor 15 works to drive the rotating gear 16 to rotate, which cooperates with the engaged driven gear 19, and then drives the threaded barrel 17 to rotate. The threaded rod 20 threadedly connected to the threaded barrel 17 extends and retracts at the end of the threaded barrel 17. Through the cooperation and guidance of the guide cylinder 18 and the guide rod 21, the translation frame 22 and the baffle 24 are driven to move, and the distance between the two baffles 24 is adjusted to match the road width. At this time, the first air cylinder 23 works to drive the baffle 24 to move down until the baffle 24 is close to the ground. The first motor 13 works, and the chain teeth 14 and the chain drive, and then drive the rotating shaft 10 and the spiral blade 11 to rotate. As the spiral blade 11 rotates, the asphalt in the middle of the road is conveyed to both ends of the road. The second air cylinder 26 works to drive the lifting plate 25 to lift and lower, and adjust the heights of the material baffle 28 and the corner material baffle 29, so as to adjust the thickness of the asphalt layer passing through. At the same time, the corner material baffle 29 pushes the asphalt in the middle of the road to both sides of the road, realizing the uniform spreading of the asphalt before compaction.

[0036] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An asphalt compacting device for highway construction, characterized in that: The invention comprises a road roller (1), a road roller (2), a counterweight mechanism (3) and a material leveling mechanism (4), wherein the road roller (1) is provided with two road rollers (2), the counterweight mechanism (3) is provided at the rear of the road roller (1), the material leveling mechanism (4) is provided at the front of the road roller (1), the material leveling mechanism (4) comprises a fixing frame (8), and the fixing frame (8) is connected to the road roller (1) via a connecting frame (9), and the fixing frame (8) has a bottom A rotating shaft (10) is rotatably mounted on the fixed frame (8), and spiral blades (11) with opposite spiral directions are respectively arranged at both ends of the rotating shaft (10); translation frames (22) are respectively mounted on both ends of the fixed frame (8), and a baffle (24) is mounted on the bottom of the translation frame (22); a lifting plate (25) is mounted on the middle part of the top side of the fixed frame (8), and the lifting plate (25) is connected to a material blocking inclined plate (28); and a folded angle material plate (29) is arranged on the middle part of the bottom side of the material blocking inclined plate (28).

2. The asphalt compacting device for highway construction according to claim 1, characterized in that: The counterweight mechanism (3) comprises a support frame (5) mounted on the road roller (1), a counterweight water tank (6) being mounted on the support frame (5), and an inlet and outlet water valve (7) being mounted on the counterweight water tank (6).

3. The asphalt compacting device for highway construction according to claim 2, characterized in that: A transmission box (12) is installed at one end of the fixing frame (8), and a first motor (13) is installed on the transmission box (12).

4. The asphalt compacting device for highway construction according to claim 3, characterized in that: The output end of the first motor (13) and the end of the rotating shaft (10) are located in a transmission box (12) and are equipped with a sprocket (14), and the two sprockets (14) are connected by a chain transmission.

5. The asphalt compacting device for highway construction according to claim 4, characterized in that: An axis plate is installed at the middle part of the bottom side of the fixing frame (8), and a threaded cylinder (17) and a guide cylinder (18) are installed on the axis plate.

6. The asphalt compacting device for highway construction according to claim 5, characterized in that: The threaded directions of the two ends of the threaded cylinder (17) are opposite, and the two ends of the threaded cylinder (17) are respectively threadedly mounted with threaded rods (20), and the two ends of the guide cylinder (18) are respectively slidably mounted with guide rods (21), and the threaded rods (20) and guide rods (21) penetrate the fixed frame (8) and are connected to the translation frame (22).

7. The asphalt compacting device for highway construction according to claim 6, characterized in that: A second motor (15) is mounted on the shaft plate, a rotating tooth (16) is mounted on the output end of the second motor (15), a driven tooth (19) is arranged on the outside of the threaded barrel (17), and the driven tooth (19) is meshed with the rotating tooth (16).

8. The asphalt compacting device for highway construction according to claim 7, characterized in that: A first pneumatic cylinder (23) is installed on the translation frame (22), and the telescopic end of the first pneumatic cylinder (23) is connected to the baffle (24).

9. The asphalt compacting device for highway construction according to claim 8, characterized in that: A second pneumatic cylinder (26) is installed on the lifting plate (25), and the telescopic end of the second pneumatic cylinder (26) is connected to the fixing frame (8). A plurality of guide pillars (27) penetrating the lifting plate (25) are installed on the top side of the fixing frame (8).

10. A working method of an asphalt compacting device for highway construction according to claim 9, characterized in that: The specific steps of this working method are as follows: Step 1: The roller (1) moves and compacts the asphalt through the roller (2). At this time, the roller (2) at the rear of the roller (1) is weighted through the counterweight mechanism (3). During the compaction process, water is added to the counterweight water tank (6) through the inlet and outlet valves (7) to increase the weight. After the compaction is completed, the water in the counterweight water tank (6) is discharged through the inlet and outlet valves (7) to reduce the weight. Step 2: The second motor (15) drives the rotating gear (16) to rotate, and cooperates with the meshing driven gear (19), thereby driving the threaded cylinder (17) to rotate, and the threaded rod (20) threadedly connected to the threaded cylinder (17) is extended and retracted at the end of the threaded cylinder (17), and guided by the cooperation of the guide cylinder (18) and the guide rod (21), thereby driving the translation frame (22) and the baffle (24) to move, and adjusting the spacing between the two baffles (24) to match the road width. At this time, the first pneumatic cylinder (23) drives the baffle (24) to move downward until the baffle (24) is close to the road. The ground is driven by the first motor (13), the sprocket (14) and the chain transmission, thereby driving the rotating shaft (10) and the spiral blade (11) to rotate. As the spiral blade (11) rotates, the asphalt in the middle of the road is transported to the two ends of the road. The second pneumatic cylinder (26) drives the lifting plate (25) to rise and fall, adjusts the height of the material blocking inclined plate (28) and the angled plate (29), and then adjusts the thickness of the asphalt layer passed. At the same time, the angled plate (29) pushes the asphalt in the middle of the road to the two sides of the road, so as to achieve uniform spreading of the asphalt before compaction.

Images