An asphalt pavement compactor

Abstract

This utility model relates to the field of road engineering construction technology and discloses an asphalt pavement compaction device, including a road roller. A fixed frame is rotatably connected to the left side of the road roller, and a compaction mechanism is provided at the bottom of the fixed frame. Installation grooves are provided on both the front and rear sides of the outer wall of the road roller. A pressure-fixing mechanism is provided on the outer wall of the road roller. A compaction roller is rotatably connected to the inner wall of the fixed frame. A rotation mechanism and a maintenance mechanism are provided on the outer wall of the road roller. The water spraying mechanism includes a water tank, the bottom of which is fixedly connected to the top right side of the road roller. In this utility model, the water supply pipe is fixed by a fixing block to prevent displacement or interfering with components, reducing the risk of blockage. The universal joint and electric telescopic rod allow for flexible adjustment, preventing nozzle blockage and improving the compaction efficiency and quality of the pavement, thereby significantly reducing the cost of backwashing and maintenance of the device.

Description

Technical Field

[0001] This utility model relates to the field of road engineering construction technology, and in particular to an asphalt pavement compaction device. Background Technology

[0002] Asphalt pavement is a road structure constructed by using asphalt as a binder and bonding minerals. It features good smoothness, low noise, and convenient maintenance. However, the quality of asphalt pavement depends on the compaction process. Good compaction can improve the density and strength of the pavement and extend its service life. For this reason, asphalt pavement compaction devices have been developed.

[0003] As a core piece of equipment to ensure the quality of asphalt pavement construction, asphalt pavement compaction devices use mechanical, hydraulic, or vibration techniques to compact the paved asphalt mixture to the specified density. By flexibly using road rollers according to different project needs, the load-bearing capacity, stability, and durability of asphalt pavement can be effectively improved, ensuring that the road maintains good performance during long-term use.

[0004] Although asphalt pavement compaction devices ensure the quality of asphalt pavement construction, the nozzles of the water spraying equipment in the original devices are clogged with asphalt impurities. Because asphalt is viscous at high temperatures, impurities adhere to the nozzles during operation. At the same time, the pipelines are hidden inside the machine body and are interspersed with the compaction wheel and vibration mechanism components. Maintenance requires disassembly of the external structure, making cleaning extremely difficult. The existing solution is to use backflushing self-cleaning technology, which involves installing a high-pressure water pump and solenoid valve to periodically backflush the pipelines. The impact force of the water flow removes asphalt residue from the nozzles and pipelines. However, this greatly increases the energy consumption of the device, thus increasing the cost of the device. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an asphalt pavement compaction device, which aims to improve the problem that the cost of the device is greatly increased due to the backwashing self-cleaning technology in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an asphalt pavement watering device, including a road roller, a fixed frame rotatably connected to the left side of the road roller, a compaction mechanism provided at the bottom of the fixed frame, mounting grooves provided on both the front and rear sides of the outer wall of the road roller, a pressure fixing mechanism provided on the outer wall of the road roller, a road roller rotatably connected to the inner wall of the fixed frame, a rotating mechanism provided on the outer wall of the road roller, and a maintenance mechanism provided on the outer wall of the road roller;

[0007] The water spraying mechanism includes a water tank, the bottom of which is fixedly connected to the top right side of the road roller. A water pump is fixedly connected to the front of the water tank, and a water supply pipe is connected to the front of the water pump. Multiple steering gears are fixedly connected to the bottom left side of the fixed frame, and the bottom of each steering gear is fixedly connected to the same water box. Multiple rotating nozzles are rotatably connected to the bottom of the water box. Multiple fixing blocks are fixedly connected to the top front side of the road roller and the front side of the fixed frame. A steering assembly is provided on the outer wall of the road roller.

[0008] As a further description of the above technical solution:

[0009] The pressure fixing mechanism includes two rotating joints, the outer walls of which are rotatably connected to the right side of the fixed frame. A bearing is rotatably connected to the left side of the inner wall of the roller. Support seats are fixedly connected to the front and rear sides of the outer wall of the roller. A hydraulic cylinder is fixedly connected to the left side of each of the two support seats. A steering gear is fixedly connected to the left end of each of the two hydraulic cylinders. An oil tank is fixedly connected to the bottom of the inner wall of each of the two mounting slots. A hydraulic pump is fixedly connected to the bottom of the inner wall of each of the two mounting slots. Reinforcing components are provided on the outer walls of the two rotating joints.

[0010] As a further description of the above technical solution:

[0011] The rotating mechanism includes a servo motor, the front side of which is fixedly connected to the rear side of the fixed frame, and a rotating shaft is fixedly connected to the inner wall of the roller.

[0012] As a further description of the above technical solution:

[0013] The maintenance mechanism includes two maintenance doors, the outer walls of which are rotatably connected to the inner walls of two mounting slots, and rotating pins are fixedly connected to the opposite sides of the two maintenance doors.

[0014] As a further description of the above technical solution:

[0015] The steering assembly includes two universal joints, the top ends of which are fixedly connected to the bottom left side of the mounting frame, and the bottom ends of which are fixedly connected to electric telescopic rods. The bottom ends of which are fixedly connected to universal joints.

[0016] As a further description of the above technical solution:

[0017] The reinforcing component includes two bolts, the outer walls of which are rotatably connected to the opposite sides of two rotating pairs, and threaded grooves are provided on the opposite sides of the two rotating pairs.

[0018] As a further description of the above technical solution:

[0019] A temperature display is fixedly connected to the front right end of the water tank, and a heater is fixedly connected to the top front side of the water tank.

[0020] As a further description of the above technical solution:

[0021] The bottom of the road roller is rotatably connected to multiple movable wheels, and the outer walls of the multiple movable wheels are fixedly connected to anti-skid chains.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the water supply pipe is fixed to the surface of the road roller and the fixed frame by multiple fixing blocks, which avoids the water supply pipe from shifting due to vibration and the interlacing of components. After starting, the spraying direction can be flexibly adjusted by universal joint and electric telescopic rod, which reduces the probability of nozzle clogging and ensures that the steel wheel surface can be evenly covered with water film, improves the compaction quality of the road surface, reduces the risk of clogging of water spraying components, and avoids the installation of backwashing components, thereby greatly reducing the cost of backwashing and maintenance of the device.

[0024] 2. In this utility model, the rotating pair and the bearing are fixed by tightening the bolts, and the connection strength between the fixed frame and the road roller is strengthened to prevent loosening. After the device is started, the hydraulic pump delivers oil to the hydraulic cylinder. The operator drives the fixed frame to rotate around the bearing through the steering gear two, and precisely adjusts the angle of the road roller to prevent the road roller from deviating and ensure that the compaction work is carried out stably. Attached Figure Description

[0025] Figure 1 This is a perspective view of an asphalt pavement compaction device proposed in this utility model;

[0026] Figure 2 This is a front view of an asphalt pavement compaction device proposed in this utility model;

[0027] Figure 3 This is a cross-sectional view of the roller of an asphalt pavement compaction device proposed in this utility model;

[0028] Figure 4 This is a cross-sectional view of the fixing frame of an asphalt pavement compaction device proposed in this utility model;

[0029] Figure 5 This is an exploded view of the steering gear of an asphalt pavement compaction device proposed in this utility model.

[0030] Legend:

[0031] 1. Road roller; 2. Mounting frame; 3. Sprinkler mechanism; 301. Water tank; 302. Water pump; 303. Water pipe; 304. Steering gear one; 305. Water box; 306. Rotating nozzle; 307. Fixing block; 308. Steering assembly; 3081. Universal joint one; 3082. Electric telescopic rod; 3083. Universal joint two; 309. Temperature display; 310. Heater; 4. Mounting slot; 5. Pressure fixing mechanism; 5 01. Rotating pair; 502. Bearing; 503. Support base; 504. Hydraulic cylinder; 505. Steering gear II; 506. Oil tank; 507. Hydraulic pump; 508. Reinforcing components; 5081. Bolt; 5082. Threaded groove; 6. Roller roller; 7. Rotating mechanism; 701. Servo motor; 702. Rotating shaft; 8. Maintenance mechanism; 801. Maintenance door; 802. Rotating pin; 9. Moving wheel; 10. Anti-skid chain. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0033] Reference Figure 1 , Figure 2 and Figure 5 This utility model provides an embodiment of an asphalt pavement watering device, including a road roller 1, which serves as the mounting body for a roller 6. A fixed frame 2 is rotatably connected to the left side of the road roller 1, which is used to fix the roller 6. A watering mechanism 3 is provided at the bottom of the fixed frame 2, which sprays water onto the roller 6. The road roller 1 has mounting grooves 4 on both the front and rear sides of its outer wall. A pressure fixing mechanism 5 is provided on the outer wall of the road roller 1, which is used to fix and control the vertical movement of the fixed frame 2 and the roller 6. The roller 6 is rotatably connected to the inner wall of the fixed frame 2, which compacts the ground. A rotating mechanism 7 is provided on the outer wall of the road roller 1, which is used to control the rotation speed of the roller 6. A maintenance mechanism 8 is provided on the outer wall of the road roller 1, which is used to inspect the components in the mounting grooves 4.

[0034] The water spraying mechanism 3 includes a water tank 301, which stores a large amount of clean water. The bottom of the water tank 301 is fixedly connected to the top right side of the road roller 1. A water pump 302 is fixedly connected to the front of the water tank 301. The water pump 302 draws out and pressurizes the clean water. A water delivery pipe 303 is connected to the front of the water pump 302, which guides the pressurized clean water to the water box 305. Multiple diverters 304 are fixedly connected to the bottom left side of the mounting bracket 2. The diverters 304 facilitate the rotation of the water box 305. The bottom of each diverter 304 is fixedly connected to the same... A water box 305 is used to evenly distribute pressurized clean water to multiple rotating nozzles 306. Multiple rotating nozzles 306 are rotatably connected to the bottom of the water box 305. Water is sprayed onto the roller 6 through the rotating nozzles 306. Multiple fixing blocks 307 are fixedly connected to the front top of the roller 1 and the front of the fixing frame 2. The water supply pipe 303 is fixed to the front top of the roller 1 and the front of the fixing frame 2 through the fixing blocks 307. A steering component 308 is provided on the outer wall of the roller 1. The steering component 308 controls the orientation of the multiple rotating nozzles 306.

[0035] The steering assembly 308 includes two universal joints 3081. The top ends of the two universal joints 3081 are fixedly connected to the bottom left side of the mounting bracket 2. The bottom ends of the two universal joints 3081 are fixedly connected to electric telescopic rods 3082. The rotation of the water box 305 is controlled by the telescopic movement of the electric telescopic rods 3082. The bottom ends of the two electric telescopic rods 3082 are fixedly connected to universal joints 3083. The right side of universal joints 3083 is fixedly connected to the left side of the water box 305. Universal joints 3081 and universal joints 3083 facilitate the rotation of the water box 305.

[0036] Specifically, before starting the device, technicians fill the water tank 301 with clean water. The water tank 301 is fixed to the top right side of the road roller 1 and can store a large amount of water. After starting the water pump 302, the clean water in the water tank 301 is extracted and pressurized. The water flows through the water pipe 303 to the water box 305 at the bottom of the fixed frame 2. During transportation, the water pipe 303 is fixed to the road roller 1 and the fixed frame 2 by the fixing block 307 to prevent the pipe from shifting due to operational vibration and to avoid cross-arrangement with the compaction wheel and vibration mechanism components, reducing the difficulty of cleaning. When the road roller 1 starts to compact the road surface, the water spraying mechanism 3 operates simultaneously. Through the multiple diverters 304 at the bottom of the fixed frame 2, the water box 305 is directed to the water box 305. With flexible rotation, the water box 305 receives pressurized clean water from the water supply pipe 303 and distributes the water to multiple rotating nozzles 306 at the bottom. When the spray direction needs to be adjusted, the electric telescopic rod 3082 extends and retracts, pushing the universal joint 2 3083, which, in conjunction with the universal joint 1 3081, precisely controls the rotation angle of the water box 305, thereby driving the rotating nozzles 306 to adjust their orientation. This ensures that the water flow evenly covers the surface of the roller 6, preventing asphalt from sticking to the rotating nozzles 306. The clean water forms a water film on the surface of the steel wheel, which not only prevents asphalt adhesion but also reduces the temperature of the steel wheel, ensuring high efficiency of compaction and road quality. This also reduces the probability of downtime for maintenance of the water spraying mechanism 3 and lowers the overall cost of the device.

[0037] Reference Figure 2 , Figure 3 and Figure 4 The pressure fixing mechanism 5 includes two rotating joints 501. The outer walls of both rotating joints 501 are rotatably connected to the right side of the fixed frame 2. A bearing 502 is rotatably connected to the left side of the inner wall of the roller 1. The fixed frame 2 and the roller 1 are rotatably connected through the rotating joints 501 and the bearing 502. Support seats 503 are fixedly connected to the front and rear sides of the outer wall of the roller 1. The support seats 503 are used to support the hydraulic cylinders 504. The left side of both support seats 503 is fixedly connected to the hydraulic cylinders 504. The rotation of the fixed frame 2 is controlled by the extension and retraction of the hydraulic cylinders 504. The left ends of the two hydraulic cylinders 504 are fixedly connected to the steering gear 505, which facilitates the rotation of the fixed frame 2. The bottom of the inner wall of the two mounting slots 4 are fixedly connected to the oil tank 506, which stores hydraulic oil. The bottom of the inner wall of the two mounting slots 4 are fixedly connected to the hydraulic pump 507, which draws hydraulic oil to provide power to the hydraulic cylinders 504. The outer wall of the two rotating pairs 501 is provided with the reinforcement component 508, which reinforces the connection between the fixed frame 2 and the road roller 1.

[0038] The reinforcement component 508 includes two bolts 5081. The outer walls of the two bolts 5081 are rotatably connected to the opposite sides of the two rotating pairs 501. The opposite sides of the two rotating pairs 501 are provided with threaded grooves 5082. The rotating pairs 501 and the bearings 502 are fixed by the two bolts 5081 and the threaded grooves 5082, thereby fixing the fixing frame 2 to the road roller 1.

[0039] Specifically, before the compaction mechanism 5 starts working, a tool is used to screw the bolt 5081 into the threaded groove 5082 of the rotating pair 501, and the bolt 5081 is tightened to fix the rotating pair 501 and the bearing 502, and to reinforce the connection between the fixed frame 2 and the road roller 1, so as to ensure the stable progress of the compaction work. Sufficient hydraulic oil is stored in the oil tank 506. After the device is started, the hydraulic pump 507 draws hydraulic oil to power the hydraulic cylinder 504. When the device starts working, according to the road conditions, the operator controls the hydraulic cylinder 504 to make telescopic movements, which drives the steering gear 2 505 to push the fixed frame 2, so that the fixed frame 2 can rotate flexibly around the rotating pair 501 and the bearing 502, and adjust the road roller 6 to a suitable compaction angle. When the angle is adjusted to the right position, the compaction work on the ground begins.

[0040] Reference Figure 1 , Figure 2 and Figure 3 The rotating mechanism 7 includes a servo motor 701, which provides power for the rotation of the roller 6. The front side of the servo motor 701 is fixedly connected to the rear side of the fixed frame 2. A rotating shaft 702 is fixedly connected to the inner wall of the roller 6, and the rotating shaft 702 is connected to the servo motor 701. The maintenance mechanism 8 includes two maintenance doors 801, which are used to inspect the internal components of the mounting slot 4. The outer walls of the two maintenance doors 801 are rotatably connected to the inner walls of the two mounting slots 4. A rotating pin 802 is fixedly connected to the opposite side of each of the two maintenance doors 801. Shaft 802 facilitates the opening and closing of the maintenance door 801. A temperature display 309 is fixedly connected to the front right end of the water tank 301. The temperature display 309 is used to detect and display the water temperature in the water tank 301, so that the clean water is heated when the temperature is low. A heater 310 is fixedly connected to the top front of the water tank 301. The clean water is heated by the heater 310. Multiple moving wheels 9 are rotatably connected to the bottom of the road roller 1. The multiple moving wheels 9 are used to control the movement of the road roller 1. Anti-skid chains 10 are fixedly connected to the outer wall of the multiple moving wheels 9. The anti-skid chains 10 can increase the stability of the vehicle movement.

[0041] Specifically, before starting the device, the water level in the water tank 301 is checked. When the temperature display 309 shows a low water temperature, the heater 310 is started to heat the water to prevent the water temperature from being too low and affecting the anti-sticking effect. At the same time, the connection status of the anti-skid chain 10 is checked to ensure the vehicle's movement efficiency under complex road conditions. When starting the device and carrying out compaction work, the operator starts the servo motor 701, which drives the rotating shaft 702, thereby driving the roller 6 to rotate. During the compaction process, the components in the mounting groove 4 need to be inspected and maintained. The inspection door 801 can be opened by rotating the pin 802 to quickly inspect, maintain, or replace the hydraulic pump 507 and the oil tank 506. When the roller 1 travels on different road sections, multiple moving wheels 9 flexibly control the movement of the equipment, while the anti-skid chain 10 can provide reliable grip on wet or mountainous roads to prevent the equipment from slipping and ensure that the device can operate safely and stably.

[0042] Working principle: Before the device starts, the operator stores a large amount of clean water in the water tank 301. After starting the water pump 302, the clean water is pressurized and delivered to the water box 305 through the water pipe 303. The fixing block 307 fixes the water pipe 303 to the surface of the roller 1 and the fixing frame 2, preventing the pipeline from shifting due to vibration of the device. It also avoids the water pipe 303 from intersecting with other components, reducing the risk of blockage and maintenance difficulty. After the device starts, the directional device 304 at the bottom of the fixing frame 2 supports the water box 305 to rotate flexibly left and right. The water box 305 receives the pressurized water. After the water is rinsed, water is sprayed evenly through the bottom rotating nozzle 306. When the spray direction needs to be adjusted, the electric telescopic rod 3082 moves to extend and retract, and together with universal joint one 3081 and universal joint two 3083, changes the angle of the water box 305, which drives the rotating nozzle 306 to accurately cover the surface of the roller 6. This makes the sprayed water form a water film on the surface of the steel wheel, reducing the adhesion between the asphalt and the steel wheel. At the same time, it helps to cool the steel wheel, improves the compaction quality of the road surface, reduces the installation cost of the backwashing structure of the sprinkler mechanism 3, and reduces the energy consumption of the device.

[0043] Furthermore, before the device is started, the bolt 5081 is screwed into the threaded groove 5082 of the rotating pair 501 and tightened to form a mechanical connection, fixing the rotating pair 501 and the bearing 502. This strengthens the initial stability of the fixed frame 2 and the road roller 1, and ensures that the oil tank 506 has sufficient hydraulic oil to provide power for the subsequent hydraulic cylinder 504. After the device is started, the hydraulic pump 507 can draw hydraulic oil from the oil tank 506 and deliver it to the hydraulic cylinder 504 through the pipeline. The operator controls the hydraulic cylinder 504 to perform telescopic movements according to the work requirements. The linear movement of the piston rod connected to the hydraulic cylinder 504 drives the fixed frame 2 to rotate around the rotating pair 501 and the bearing 502 through the steering gear 2 505, accurately adjusting the angle of the road roller 6. After the angle is in place, it can ensure that the road roller 6 remains stable during vibration compaction and avoids deviation due to external forces, thereby affecting the compaction quality.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An asphalt pavement compaction device, comprising a road roller (1), characterized in that: The left side of the road roller (1) is rotatably connected to a fixed frame (2), and a water spraying mechanism (3) is provided at the bottom of the fixed frame (2). The front and rear sides of the outer wall of the road roller (1) are provided with mounting grooves (4). The outer wall of the road roller (1) is provided with a pressure fixing mechanism (5). The inner wall of the fixed frame (2) is rotatably connected to a road roller (6). The outer wall of the road roller (1) is provided with a rotating mechanism (7). The outer wall of the road roller (1) is provided with a maintenance mechanism (8). The water spraying mechanism (3) includes a water tank (301), the bottom of which is fixedly connected to the top right side of the road roller (1). A water pump (302) is fixedly connected to the front side of the water tank (301), and a water supply pipe (303) is connected to the front side of the water pump (302). Multiple steering gears (304) are fixedly connected to the bottom left side of the fixed frame (2). The bottom of each of the multiple steering gears (304) is fixedly connected to the same water box (305). Multiple rotating nozzles (306) are rotatably connected to the bottom of the water box (305). Multiple fixing blocks (307) are fixedly connected to the top front side of the road roller (1) and the front side of the fixed frame (2). A steering assembly (308) is provided on the outer wall of the road roller (1).

2. The asphalt pavement compaction device according to claim 1, characterized in that: The pressure fixing mechanism (5) includes two rotating pairs (501). The outer walls of the two rotating pairs (501) are rotatably connected to the right side of the fixed frame (2). The inner wall of the roller (1) is rotatably connected to a bearing (502). The front and rear sides of the outer wall of the roller (1) are fixedly connected to support seats (503). The left side of the two support seats (503) is fixedly connected to a hydraulic cylinder (504). The left end of the two hydraulic cylinders (504) is fixedly connected to a steering gear (505). The bottom of the inner wall of the two mounting slots (4) is fixedly connected to an oil tank (506). The bottom of the inner wall of the two mounting slots (4) is fixedly connected to a hydraulic pump (507). The outer walls of the two rotating pairs (501) are provided with a reinforcing component (508).

3. The asphalt pavement compaction device according to claim 1, characterized in that: The rotating mechanism (7) includes a servo motor (701), the front side of which is fixedly connected to the rear side of the fixed frame (2), and the inner wall of the roller (6) is fixedly connected to a rotating shaft (702).

4. The asphalt pavement compaction device according to claim 1, characterized in that: The maintenance mechanism (8) includes two maintenance doors (801), the outer walls of the two maintenance doors (801) are rotatably connected to the inner walls of the two mounting slots (4), and rotating pins (802) are fixedly connected to the opposite sides of the two maintenance doors (801).

5. An asphalt pavement compaction device according to claim 1, characterized in that: The steering assembly (308) includes two universal joints (3081), the top ends of which are fixedly connected to the bottom left side of the mounting bracket (2), the bottom ends of which are fixedly connected to electric telescopic rods (3082), and the bottom ends of which are fixedly connected to universal joints (3083).

6. An asphalt pavement compaction device according to claim 2, characterized in that: The reinforcing component (508) includes two bolts (5081), the outer walls of which are rotatably connected to the opposite sides of two rotating pairs (501), and threaded grooves (5082) are provided on the opposite sides of the two rotating pairs (501).

7. An asphalt pavement compaction device according to claim 1, characterized in that: A temperature display (309) is fixedly connected to the front right end of the water tank (301), and a heater (310) is fixedly connected to the top front side of the water tank (301).

8. An asphalt pavement compaction device according to claim 1, characterized in that: The bottom of the roller (1) is rotatably connected to multiple movable wheels (9), and the outer walls of the multiple movable wheels (9) are fixedly connected to anti-skid chains (10).

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