An asphalt paving apparatus

Abstract

The application discloses a kind of asphalt pavement paving equipment, it is related to the technical field of paving equipment, it includes transport vehicle, transport vehicle is equipped with car head and tail, tail is equipped with: asphalt mixing device, located tail upper end, for for mixing heating treatment to asphalt;Spraying device, located tail end away from car head, for extracting asphalt raw materials in asphalt mixing device, and spraying asphalt raw materials to ground to form asphalt layer;Press wheel, for compaction treatment to asphalt layer;Caulking assembly, between press wheel and spraying assembly, for filling and pushing flat to the joint between two asphalt layers;Driving assembly, for driving caulking assembly to push flat treatment to filled asphalt raw materials.The application has the effect of filling joint while paving pavement, improving the convenience of construction personnel when construction.

Description

Technical Field

[0001] This invention relates to the technical field of paving equipment, and in particular to an asphalt pavement paving device. Background Technology

[0002] Asphalt pavement refers to various types of pavement formed by paving and compacting asphalt and concrete. Asphalt concrete is mainly made by mixing appropriate asphalt materials with certain mineral materials and then thoroughly mixing them. Asphalt concrete has good stability and anti-aging properties, and pavement made using asphalt concrete as a base material has good service functions.

[0003] When laying asphalt pavement, specialized paving vehicles are required. The paving vehicle has a feeding device at the front to receive asphalt raw materials, and a spreading device connected to the feeding device at the rear. During paving, asphalt raw materials are added to the feeding device, and the paving vehicle is started, allowing it to move forward at a constant speed. After being mixed and heated, the asphalt raw materials are evenly sprayed onto the road surface through the spreading device, forming an asphalt layer. A road roller is then used to compact the asphalt layer. Due to the limited length of the spreading device, when the road to be constructed is wide, the paving vehicle needs to pave multiple times along the construction section, splicing together multiple parallel asphalt layers to form a complete asphalt pavement.

[0004] Regarding the aforementioned technologies, when constructing wider roads, to reduce the probability of overlapping between adjacent asphalt layers during laying, the paving truck leaves a certain gap between adjacent asphalt layers during repeated paving, thus forming a joint. Before the asphalt layers are compacted, construction workers need to manually fill the joint. Since the road roller follows closely behind the paving truck, construction workers are required to quickly fill the joint, resulting in high workload and inconvenience during construction. Summary of the Invention

[0005] In order to fill the joints during road paving and improve the convenience of construction workers, this application provides an asphalt pavement paving device.

[0006] In a first aspect, this application provides an asphalt pavement paving device, which adopts the following technical solution:

[0007] An asphalt pavement paving device includes a transport vehicle with a front and a rear. The transport vehicle is equipped with: an asphalt mixing unit located at the upper end of the rear for mixing and heating asphalt raw materials, with an inlet near the front; a spraying assembly including a spray head, a feeding pipe, and a drive pump, the spray head located at the rear of the vehicle away from the front, with several nozzles at its lower end; one end of the feeding pipe connected to the spray head, and the other end connected to the asphalt mixing unit; the drive pump fixedly connected to the feeding pipe for driving the asphalt in the asphalt mixing unit to flow towards the spray head; and a pressure roller located at the end of the spray head away from the transport vehicle. Two sets of connecting arms are horizontally arranged at the rear of the vehicle, with the pressure roller located between the two sets of connecting arms and rotating circumferentially with the two connecting arms. The joint filling assembly includes a hose, a spray pipe, a mounting block, a rotating rod, and several scrapers. A crossbeam is fixedly connected between two connecting arms. The crossbeam is located between the spray head and the pressure roller. The mounting block is located at the lower end of the crossbeam. The spray pipe is fixed to the side of the mounting block near the spray head. The hose is equipped with a switch valve. One end of the hose is connected to the feed pipe, and the other end is connected to the spray pipe. The spray pipe is vertically positioned, and its lower end has a spray nozzle connected to the hose. The rotating rod is located on the side of the mounting block opposite to the spray pipe and is rotatably connected to the mounting block vertically. Several scrapers are located at the lower end of the rotating rod and are arranged circumferentially along the rotating rod. When the spray pipe sprays asphalt, the lower end face of the scraper is flush with the upper end face of the asphalt layer. A drive assembly is located between the pressure roller and the joint filling assembly to drive the rotating rod to rotate.

[0008] By adopting the above technical solution, asphalt raw materials are added to the asphalt mixing device through the feeding port. The asphalt mixing device mixes and heats the raw materials, and the driven pump drives the mixed asphalt to flow along the feeding pipe to the spray head, and finally sprays it onto the ground through the spray nozzle. The transport vehicle moves forward, thus forming an asphalt layer on the ground. As the transport vehicle moves forward, the connecting arm drives the pressure roller to flatten the asphalt layer. When laying the first asphalt layer, the switch valve is in the closed state. When laying the second asphalt layer, the switch valve is opened. At this time, the asphalt in the feeding pipe flows along the hose to the spray pipe. The spray pipe is aligned with the joint between the two asphalt layers, and the asphalt raw material spray nozzle sprays into the joint. With the support of the horizontal rail, the transport vehicle moves, causing the mounting block to move, which in turn causes the spray pipe to fill the joint. The lower end of the scraper is flush with the upper end of the asphalt layer. After spraying the material into the joint, the drive assembly rotates the rotating rod, which in turn moves the scraper, leveling the filler material. Finally, a pressure roller compacts the filled and leveled asphalt material, completing the joint filling. This method eliminates the need for manual filling by construction workers, reducing their workload and improving construction convenience.

[0009] Optionally, both connecting arms are provided with connecting holes, and the connecting arms are rotatably connected to bushings. The bushings are located inside the connecting holes and are rotatably connected to the inner wall of the connecting holes. The connecting arms are provided with polygonal prisms, which pass through the bushings and are inserted into the pressure roller. The end of the polygonal prism away from the pressure roller is fixedly connected to a mounting plate. The mounting plate is provided with several connecting bolts, and all connecting bolts pass through the mounting plate and are threadedly connected to the bushings.

[0010] By adopting the above technical solution, the connecting arm limits the bushing through the connecting hole, thereby allowing the bushing to support and position the polygonal prism. The connecting bolts cooperate with the bushing, thereby limiting the mounting plate, so that the bushing and the polygonal prism are mutually positioned. The two polygonal prisms cooperate to support and position the pressure roller, allowing the pressure roller to rotate around the polygonal prism as its axis. When it is necessary to disassemble the pressure roller, the positioning of the mounting plate is released by removing all connecting bolts, thereby facilitating the disassembly of the polygonal prism. After the two polygonal prisms are disassembled, it is convenient to disassemble and replace the pressure roller.

[0011] Optionally, the lower end of the spray head is fixedly connected with a plurality of nozzles corresponding to the nozzles, each nozzle is connected to the corresponding nozzle, and the lower end of each nozzle is hinged with a cap. The spray head is provided with a cylinder corresponding to each nozzle, and the output end of the cylinder is hinged to the cap of the corresponding nozzle.

[0012] By adopting the above technical solution, in the initial state, all caps are located far from the nozzles. The asphalt raw material in the feed pipe enters the nozzle through the nozzle and is sprayed out along the nozzle. When it is necessary to adjust the width of the asphalt layer, the cylinder is operated to push the caps towards the nozzle, so that the caps block the nozzle at either end. At this time, the width of the asphalt layer sprayed by the nozzle is shortened, making the nozzle suitable for laying asphalt layers of different widths.

[0013] Optionally, at least two parallel sliding rods are fixedly connected to the lower end of the cross frame. All sliding rods are arranged along the length of the cross frame. Each sliding rod passes through a mounting block and is slidably connected to the mounting block. The cross frame is rotatably connected to a lead screw. The lead screw passes through a mounting block and is threadedly connected to the mounting block. The cross frame is equipped with a motor for driving the lead screw to rotate.

[0014] By adopting the above technical solution, the slide bar limits the installation block, so that the installation block moves along the length of the slide bar. In the initial state, the lead screw limits the installation block. When the motor drives the lead screw to rotate, the lead screw pushes the installation block to move, which in turn causes the installation block to move the spray pipe, thus facilitating the adjustment of the spray position of the spray pipe.

[0015] Optionally, the drive assembly includes a pulley one, a pulley two, a belt, a rotating rod, a gear one, and a gear two. The pulley one is coaxially fixed with any bushing. The rotating rod is rotatably connected to the crossbeam. The pulley two is fixedly connected to the end of the rotating rod near the pulley one. The belt is wrapped around the outside of the pulley one and pulley two, and the belt is tumblingly connected to both pulley one and pulley two. The rotating rod passes through the gear one and is coaxially arranged with the gear. The gear one is fixedly connected to a limit block. The rotating rod has a limit groove along its length that matches the limit block. The limit block is inserted into the limit groove. The mounting block is fixedly connected to a support ring that matches the gear one. The gear one has an annular groove along its circumference that matches the support ring. The support ring is located in the annular groove and is rotatably connected to the gear one. The gear two is fixedly connected to the upper end of the rotating rod, and the gear two meshes with the gear one.

[0016] By adopting the above technical solution, when the pressure roller rotates, it drives the bushing to rotate via the polygonal prism. The bushing's rotation drives pulley one to rotate. Under the connection of the belt, pulley one's rotation drives pulley two to rotate. Supported by the two straight plates, pulley two's rotation drives the rotating rod to rotate. Through the limiting groove's limiting effect on the limiting block, the rotating rod's rotation drives gear one to rotate. The support ring and annular groove further limit gear one's rotation, causing gear one to drive gear two to rotate, which in turn drives the rotating rod to rotate.

[0017] Optionally, the spray pipe is provided with two sets of limiting plates, both sets of limiting plates are located inside the spray nozzle, the spray nozzle is rectangular, the two sets of limiting plates are respectively located on both sides of the spray nozzle along the width direction, the upper ends of the limiting plates are rotatably connected to the spray pipe, the mounting block is fixedly provided with cylinder two, the output end of cylinder two is fixedly connected to a moving block, the lower ends of the two sets of limiting plates are provided with connecting plates, one end of the two connecting plates is rotatably connected to the moving block, and the other end is rotatably connected to the corresponding limiting plate.

[0018] By adopting the above technical solution, in the initial state, the two limiting plates are parallel to each other, and the width of the asphalt material sprayed from the nozzle is at its maximum. The output end of the second control cylinder is retracted, which in turn drives the two connecting plates upwards via the moving block. As the connecting plates move, they cause the corresponding limiting plates to rotate, bringing the lower ends of the two limiting plates closer together. At this point, the width of the asphalt material sprayed from the nozzle is shortened, making it easier to fill joints of different widths.

[0019] Optionally, the upper ends of several scrapers are fixedly connected to the same connecting post. The connecting post has a polygonal cross-section. A vertical hole adapted to the connecting post is opened in the circumferential direction of the rotating rod. The connecting post is located in the vertical hole and is slidably connected to the rotating rod in the axial direction of the vertical hole. A clearance opening adapted to the scraper is opened in the vertical direction of the rotating rod. The scraper passes through the clearance opening and fits against the inner wall of the clearance opening. A threaded rod is rotatably connected to the rotating rod. The threaded rod is located in the vertical hole. The threaded rod passes through the connecting post and is threadedly engaged with the connecting post. A handle is fixedly connected to the upper end of the threaded rod. An opening adapted to the handle is opened on the rotating rod.

[0020] By adopting the above technical solution, the vertical hole limits the connection column, thereby allowing the connection column to move along the length of the vertical hole. Under the restriction of the scraper by the clearance opening, the movement of the connection column drives the scraper to move vertically. The opening is used to rotate the handle, which in turn drives the threaded rod to rotate. When the threaded rod rotates, it drives the connection column to move, thereby facilitating the adjustment of the distance between the lower end face of the scraper and the upper end face of the asphalt layer.

[0021] Optionally, the upper end of the rear of the vehicle is provided with an exhaust pipe, which is connected to an exhaust fan. One end of the exhaust pipe is fixedly connected to an air inlet corresponding to the feed inlet, and the end of the exhaust pipe away from the air inlet is equipped with a filter cartridge for removing odors.

[0022] By adopting the above technical solution, when the mixing device mixes and heats the asphalt, the asphalt is prone to producing irritating gases. The odor is emitted from the feed inlet. When the exhaust fan is running, it drives the airflow in the exhaust pipe, which in turn causes the irritating gases to flow along the air inlet and the exhaust pipe to the filter cartridge. The gas is then filtered through the filter cartridge, reducing the emission of irritating gases in the construction environment.

[0023] In summary, this application includes at least one of the following beneficial technical effects of asphalt pavement paving equipment:

[0024] 1. Add asphalt raw materials into the asphalt mixing device through the feeding port. The asphalt mixing device mixes and heats the raw materials. The drive pump drives the mixed asphalt to flow along the feeding pipe to the spray head, and finally sprays it onto the ground through the nozzle. The transport vehicle moves forward, forming an asphalt layer on the ground. As the transport vehicle moves forward, the connecting arm drives the pressure roller to flatten the asphalt layer. When laying the first asphalt layer, the switch valve is in the closed state. When laying the second asphalt layer, the switch valve is opened. At this time, the asphalt in the feeding pipe flows along the hose to the spray pipe. The spray pipe is aligned with the joint between the two asphalt layers. The asphalt raw material spray nozzle sprays into the joint. With the support of the cross rail, the transport vehicle moves, causing the mounting block to move, which in turn causes the spray pipe to fill the joint. The lower end of the scraper is flush with the upper end of the asphalt layer. After spraying the material into the joint, the drive assembly rotates the rotating rod, which in turn moves the scraper, allowing it to smooth the filler material. Finally, a pressure roller compacts the filled and smoothed asphalt material, completing the filling of the joint. Filling the joint does not require manual operation by construction workers, reducing their workload and improving construction convenience.

[0025] 2. The connecting arm limits the bushing through the connecting hole, thereby allowing the bushing to support and position the polygonal prism. The connecting bolts cooperate with the bushing, thereby limiting the mounting plate, allowing the bushing and polygonal prism to be mutually positioned. The two polygonal prisms cooperate to support and position the pressure roller, allowing the pressure roller to rotate around the polygonal prism as its axis. When it is necessary to disassemble the pressure roller, the positioning of the mounting plate is released by removing all connecting bolts, thus facilitating the disassembly of the polygonal prism. After the two polygonal prisms are disassembled, it is convenient to disassemble and replace the pressure roller.

[0026] 3. Initially, all caps are located away from the nozzles. The asphalt material in the feed pipe enters the nozzle through the nozzle and is then sprayed out. When it is necessary to adjust the width of the asphalt layer, the cylinder is operated to push the caps towards the nozzle, so that the caps block the nozzle at either end. At this time, the width of the asphalt layer sprayed by the nozzle is shortened, making the nozzle suitable for laying asphalt layers of different widths. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the embodiment.

[0028] Figure 2 This is a schematic diagram designed to highlight the structure of the spraying component.

[0029] Figure 3 This is a schematic diagram designed to highlight the connection between the spray head and the nozzle.

[0030] Figure 4 This is a schematic diagram designed to highlight the connection between the pressure roller and the connecting arm.

[0031] Figure 5 This is a schematic diagram designed to highlight the structure of the spray nozzle.

[0032] Figure 6 This is a schematic diagram designed to highlight the connection between the rotating rod and the scraper.

[0033] Figure 7 This is a schematic diagram designed to highlight the gear structure.

[0034] Explanation of reference numerals in the attached drawings: 1. Transport vehicle; 11. Vehicle front; 12. Vehicle rear; 13. Exhaust pipe; 131. Exhaust fan; 132. Air inlet; 133. Filter cartridge; 14. Connecting arm; 141. Crossbar; 142. Connecting hole; 143. Bushing; 144. Polyhedral prism; 145. Mounting plate; 146. Connecting bolt; 151. Slide rod; 152. Lead screw; 153. Motor 1; 2. Asphalt mixing device; 21. Feed inlet; 3. Spraying assembly; 31. Spray head; 311. Nozzle; 32. Feed pipe; 33. Drive pump; 34. Nozzle; 341. Cover; 342. Cylinder 1; 4. Pressure roller; 5. 51. Sealing assembly; 52. Hose; 53. Switch valve; 54. Spray pipe; 55. Spray nozzle; 56. Limiting plate; 57. Cylinder II; 58. Connecting plate; 59. Moving block; 50. Mounting block; 51. Support ring; 52. Rotating rod; 53. Vertical hole; 54. Clearance opening; 55. Threaded rod; 56. Handle; 57. Opening; 58. Scraper; 59. Connecting column; 60. Drive assembly; 61. Pulley I; 62. Pulley II; 63. Belt; 64. Rotating rod; 65. Limiting groove; 66. Gear I; 67. Limiting block; 68. Annular groove; 69. Gear II. Detailed Implementation

[0035] The present application will be further described in detail below with reference to all the accompanying drawings.

[0036] This application discloses an asphalt pavement paving device. Example

[0037] Reference Figure 1 An asphalt pavement paving device includes a transport vehicle 1, which comprises a front end 11 and a rear end 12. An asphalt mixing device 2 is installed on the upper part of the rear end 12. When the transport vehicle 1 moves, it drives the asphalt mixing device 2. The asphalt mixing device 2 is existing technology and is used to mix and heat asphalt raw materials, which will not be described in detail here. The asphalt mixing device 2 is provided with a feed inlet 21. Construction personnel add asphalt raw materials into the asphalt mixing device 2 through the feed inlet 21. The feed inlet 21 is located at one end near the front end 11, which facilitates the continuous addition of raw materials to the feed inlet 21 by a dump truck while the transport vehicle 1 is moving.

[0038] Reference Figure 1 When asphalt raw materials are heated and mixed, they easily emit an irritating odor. When this odor diffuses into the construction environment along the feed inlet 21, it can easily cause discomfort to construction workers. An exhaust pipe 13 is also provided at the upper end of the rear of the vehicle 12. An air inlet 132 is located at the end of the exhaust pipe 13 closest to the feed inlet 21, directly opposite it. An exhaust fan 131 is installed in the exhaust pipe 13. When the exhaust fan 131 operates, it drives the gas at the feed inlet 21 to flow along the air inlet 132 into the exhaust pipe 13.

[0039] Reference Figure 1 A filter cartridge 133 is installed at the end of the exhaust pipe 13 away from the air inlet 132. Irritating gas flows along the exhaust pipe 13 to the filter cartridge 133 under the action of the exhaust fan 131. The gas is filtered by the filter cartridge 133, which helps to reduce the content of harmful substances in the gas and improves the safety of the working environment for construction workers.

[0040] Reference Figure 2 and Figure 3 The rear of the vehicle 12 is also equipped with a spraying assembly 3, which includes a spray head 31, a feed pipe 32, and a drive pump 33. The spray head 31 is installed at the end of the rear of the vehicle 12 away from the front of the vehicle 11, and the lower end of the spray head 31 has multiple evenly arranged nozzles 311. When the transport vehicle 1 is moving, the nozzles 311 are facing the road surface. One end of the feed pipe 32 is fixedly connected to the spray head 31, and the feed pipe 32 is connected to all the nozzles 311.

[0041] Reference Figure 2 and Figure 3 The other end of the feeding pipe 32 is connected to the asphalt mixing device 2. The drive pump 33 is installed on the feeding pipe 32. When the drive pump 33 is in operation, it drives the asphalt raw material in the mixing device to flow along the feeding pipe 32 to the nozzle 311 and spray it out onto the road surface along the nozzle 311. The spray head 31 has multiple nozzles 34 fixed along its length, each corresponding to a nozzle 311. The nozzles 34 are connected to the corresponding nozzles 311, and the asphalt raw material enters the corresponding nozzle 34 along the nozzle 311.

[0042] Reference Figure 2 and Figure 3 Each nozzle 34 has a cap 341 hinged to its lower end. The cap 341 is compatible with the nozzle 34. When the cap 341 is engaged with the nozzle 34, the asphalt material inside the nozzle 34 is not easily discharged. The spray head 31 is equipped with multiple cylinders 342, which correspond one-to-one with the nozzle 34. The output end of the cylinder 342 is hinged to the cap 341 of the corresponding nozzle 34. When the output end of the cylinder 342 extends, it drives the corresponding cap 341 to engage with the nozzle 34, thereby sealing the nozzle 34.

[0043] Reference Figure 1 and Figure 2 Initially, all caps 341 are open, and asphalt raw material is evenly sprayed onto the road surface along the nozzles 34, forming an asphalt layer. When it is necessary to adjust the width of the asphalt layer, the corresponding cylinder 342 is operated to engage the caps 341 with the corresponding nozzles 34, thereby reducing the number of nozzles 34 spraying asphalt and shortening the overall width of the asphalt layer. After the first asphalt layer is laid, the transport vehicle 1 is moved back and forth to lay the second asphalt layer. The two asphalt layers are parallel to each other and have a joint between them.

[0044] Reference Figure 1 and Figure 4 At the rear end 12, away from the front end 11, a pressure roller 4 is provided. Two parallel connecting arms 14 are mounted on the rear end 12, with the pressure roller 4 located between the two connecting arms 14. Each connecting arm 14 has a connecting hole 142, which is coaxially aligned with the pressure roller 4. Each connecting arm 14 has a bushing 143, which is rotatably connected within the connecting hole 142. The connecting hole 142 limits the movement of the bushing 143, allowing it to rotate around its own axis.

[0045] Reference Figure 1 and Figure 4 Both ends of the bushing 143 are fixedly connected with retaining rings. The diameter of the retaining rings is larger than that of the bushing 143. The retaining rings abut against the connecting arm 14, thereby reducing the probability of the bushing 143 falling out of the connecting hole 142. The connecting arm 14 is provided with a polygonal prism 144, the cross-section of which is polygonal. The polygonal prism 144 passes through the bushing 143 axially and is slidably connected to the bushing 143. One end of the polygonal prism 144 is inserted into the pressure roller 4 and fits against the pressure roller 4. When the transport vehicle 1 moves, the connecting arm 14 drives the polygonal prism 144 to move, which in turn drives the pressure roller 4 to roll, thereby compacting the asphalt layer.

[0046] Reference Figure 1 and Figure 4When the pressure roller 4 rolls, it drives the bushing 143 to rotate via the polygonal prism 144. A mounting plate 145 is fixedly connected to the end of the polygonal prism 144 away from the pressure roller 4. The end of the mounting plate 145 near the polygonal prism 144 abuts against the end of the bushing 143 away from the pressure roller 4. Multiple connecting bolts 146 are provided circumferentially on the mounting plate 145, and all connecting bolts 146 pass through the mounting plate 145 and are threadedly connected to the bushing 143. The connecting bolts 146 push the mounting plate 145 to abut against the bushing 143, thereby positioning the mounting plate 145 and the bushing 143 and improving the connection stability between the polygonal prism 144 and the bushing 143. When it is necessary to disassemble or replace the pressure roller 4, first remove all the connecting bolts 146 on the mounting plate 145 to release the restriction on the polygonal prism 144, then separate the polygonal prism 144 from the bushing 143, thereby releasing the positioning of the pressure roller 4 by the two polygonal prisms 144, making disassembly of the pressure roller 4 more convenient.

[0047] Reference Figure 1 and Figure 2 The rear of the vehicle 12 is also equipped with a caulking assembly 5, which includes a hose 51, a spray pipe 52, a mounting block 53, a rotating rod 54, and multiple scrapers 55. A common crossbeam 141 is fixed between the two connecting arms 14, and the crossbeam 141 is arranged parallel to the spray head 31. The mounting block 53 is located at the lower end of the crossbeam 141, and its upper surface is in contact with the lower surface of the crossbeam 141. Multiple sliding rods 151 are fixed along the length of the lower end of the crossbeam 141, with at least two sliding rods 151. Each sliding rod 151 passes through the mounting block 53 and is slidably connected to it. The sliding rods 151 limit the movement of the mounting block 53 along its length.

[0048] Reference Figure 2 and Figure 5 The spray pipe 52 is fixed to one end of the mounting block 53 near the spray head 31. A spray nozzle 521 is provided at the lower end of the spray pipe 52. The spray pipe moves when the mounting block 53 moves. A lead screw 152 is provided along the length of the cross frame 141. The lead screw 152 is parallel to the slide rod 151 and is rotatably connected to the cross frame 141. The cross frame 141 is equipped with a motor 153 (see reference) to drive the lead screw 152 to rotate. Figure 1 The lead screw 152 passes through the mounting block 53 and is threadedly connected to the mounting block 53.

[0049] Reference Figure 2 and Figure 5 When the lead screw 152 is in a stationary state, it limits the displacement of the mounting block 53 along the length of the slide rod 151. The construction worker operates motor 153 (reference). Figure 1 The screw 152 rotates, causing the mounting block 53 to rotate along the slide bar 151. The mounting block 53 then moves the spray pipe 52, so that the spray nozzle 521 is aligned with the splice seam.

[0050] Reference Figure 2 and Figure 5 One end of the hose 51 is connected to the spray pipe 52. When the spray pipe 52 moves, it drives the hose 51 to move as well. The other end of the hose 51 is connected to the feeding pipe 32, allowing the asphalt material in the feeding pipe 32 to flow along the hose 51 towards the spray pipe 52. The hose 51 is equipped with a switch valve 511, which is initially closed. When it is necessary to fill the joint, the switch valve 511 is opened, allowing the asphalt material to enter the spray pipe 52 along the hose 51 and be sprayed out towards the joint through the spray nozzle 521.

[0051] Reference Figure 2 and Figure 5 The spray pipe 52 is equipped with two sets of limiting plates 522, both located within the spray nozzle 521. The limiting plates 522 are vertically positioned and rotatably connected to the spray pipe 52. Initially, the two sets of limiting plates 522 are parallel to each other, and the asphalt material in the spray pipe 52 passes between the two limiting plates 522. A connecting plate 524 is rotatably connected to the lower end of each limiting plate 522. When the two connecting plates 524 approach each other, they cause the lower ends of the two limiting plates 522 to approach each other. A second cylinder 523 is mounted on the mounting block 53. The second cylinder 523 is vertically positioned, and a moving block 525 is fixed to the output end of the second cylinder 523. When the output end of the second cylinder 523 moves, it causes the moving block 525 to move.

[0052] Reference Figure 2 and Figure 5 The ends of both connecting plates 524 furthest from the limiting plate 522 are rotatably connected to the moving block 525. When the cylinder 523 drives the moving block 525 upward, the moving block 525 drives the two connecting plates 524 to move synchronously. Initially, both connecting plates 524 are tilted upward from bottom to top, towards the moving block 525. When the moving block 525 moves upward, it drives the two connecting plates 524 to rotate towards a parallel state, causing the lower ends of the two connecting plates 524 to move closer to each other, thereby causing the connecting plates 524 to drive the limiting plate 522 to move. When the lower ends of the two limiting plates 522 move closer to each other, they limit the asphalt material sprayed from the spray pipe 52, thereby shortening the spray width of the asphalt material and facilitating the filling of joints of different widths.

[0053] Reference Figure 2 and Figure 6The rotating rod 54 is located on the side of the mounting block 53 opposite to the spray pipe 52, and is rotatably connected to the mounting block 53 vertically. The scraper blades 55 are evenly arranged circumferentially, and the upper ends of all scraper blades 55 are fixed with the same connecting post 551. The connecting post 551 has a polygonal cross-section. The rotating rod 54 has a vertical hole 541 circumferentially, and the connecting post 551 is inserted into the vertical hole 541 and fits against the inner wall of the vertical hole 541. The rotating rod 54 limits the connecting post 551 through the vertical hole 541, so that the rotating rod 54 drives the connecting post 551 to rotate when it rotates. The rotating rod 54 has a clearance opening 542 adapted to the scraper blades 55, and the scraper blades 55 pass through the corresponding clearance opening 542 and fit against the inner wall of the clearance opening 542. Under the connecting action of the connecting post 551, the rotating rod 54 drives the scraper blades 55 to rotate when it rotates.

[0054] Reference Figure 2 and Figure 6 A threaded rod 543 is rotatably connected inside the rotating rod 54. The threaded rod 543 passes through and is threadedly connected to the connecting post 551. When the threaded rod 543 rotates, it drives the connecting post 551 to move vertically, which in turn causes the connecting post 551 to move all the scrapers 55 along the length of the clearance opening 542. The construction worker rotates the threaded rod 543, causing the connecting post 551 to move the scrapers 55 downward. When the lower end face of the scraper 55 is in contact with the upper end face of the asphalt layer, the rotation of the threaded rod 543 is stopped, thus positioning the threaded rod 543 around the connecting post 551. A handle 544 is fixed to the upper end of the threaded rod 543. The handle 544 improves the convenience of rotating the threaded rod 543, and the rotating rod 54 has an opening 545 that matches the handle 544, making it easier for the construction worker to pass through the opening 545 and rotate the handle 544.

[0055] Reference Figure 4 and Figure 6 12 at the rear (reference) Figure 1 It also includes a driver component 6 (see reference). Figure 1 ), Driver Component 6 (Reference) Figure 1 The system includes a first pulley 61, a second pulley 62, a belt 63, and a rotating rod 64. The first pulley 61 is coaxially fixed to any one of the bushings 143. When the bushing 143 rotates, it drives the first pulley 61 to rotate. The rotating rod 64 is located on the side of the crossbeam closest to the pressure roller 4 and is parallel to the crossbeam 141. The rotating rod 64 is rotatably connected to the crossbeam 141. The second pulley 62 is fixed to the end of the rotating rod 64 near the first pulley 61. The belt 63 is wrapped around the outside of the first pulley 61 and the second pulley 62, and is in rolling connection with both the first pulley 61 and the second pulley 62. Under the connecting action of the belt 63, when the first pulley 61 rotates, it drives the second pulley 62 to rotate, which in turn drives the rotating rod 64 to rotate.

[0056] Reference Figure 6 and Figure 7Driver component 6 (reference) Figure 1 The system also includes gear 65 and gear 66. A rotating rod 64 is coaxially arranged with gear 65, and the rotating rod 64 passes through and is slidably connected to gear 65. The rotating rod 64 limits the movement of gear 65, allowing gear 65 to move along the length of the rotating rod 54. Two sets of support rings 531 are fixed to the mounting block 53. Gear 65 is located between the two sets of support rings 531. The two sets of support rings 531 cooperate to limit the movement of gear 65. When the mounting block 53 moves, it drives gear 65 to move axially through the support rings 531. Gear 65 has an annular groove 652 that matches the support ring 531. The support ring 531 is inserted into the corresponding annular groove 652 and is rotatably connected to gear 65 along the circumference of the annular groove 652. The annular groove 652 limits the movement of the support ring 531, which helps improve the stability of the connection between gear 65 and the mounting block 53.

[0057] Reference Figure 6 and Figure 7 Gear 65 is fixed with a limiting block 651. A limiting groove 641 is formed along the length of the rotating rod 64. The limiting block 651 is inserted into the limiting groove 641 and fits against the inner wall of the groove. The limiting groove 641 limits the limiting block 651, so that when the rotating rod 64 rotates, it drives gear 65 to rotate via the limiting block 651. Gear 66 is located at the upper end of the rotating rod 54 and is coaxially fixed to the rotating rod 54. When the mounting block 53 moves, it drives gear 66 to move via the rotating rod 54. Gear 65 meshes with gear 66, thus causing the rotating rod 54 to rotate via gear 66 when gear 65 rotates.

[0058] Reference Figure 6 and Figure 7 The rotating rod 54 drives all the scrapers 55 to rotate via the connecting column 551, causing the scrapers 55 to flatten the asphalt material filled in the joint, making the subsequently filled asphalt material flush with the asphalt layer. After flattening the asphalt filling material, the pressure roller 4 flattens the asphalt, thus completing the joint filling operation. When filling the joint, no manual filling and leveling operations are required, reducing the workload of construction workers. Simultaneously, the leveling effect is less affected by the scraper 55 leveling of the asphalt filler, improving the filling effect of the joint and enhancing construction convenience.

[0059] The implementation principle of an asphalt pavement paving device according to this application embodiment is as follows: Under the action of the drive pump 33, the asphalt raw material in the asphalt mixing device 2 flows along the feeding pipe 32 to the spray head 31 and is sprayed out onto the ground by the spray head 34. When the transport vehicle 1 moves forward, it drives the spray head 31 to form an asphalt layer on the ground. Under the connection of the connecting arm 14, the transport vehicle 1 continues to move forward, driving the pressure roller 4 to compact the asphalt layer. When it is necessary to fill the splice joint, the operating motor 153 drives the lead screw 152 to rotate, so that the lead screw 152 drives the mounting block 53 to move along the length direction of the slide rod 151, thereby causing the mounting block 53 to move the spray pipe 52 to move directly above the splice joint, so that the spray nozzle 521 is directly opposite the splice joint. The switch valve 511 is opened, so that the asphalt raw material flows along the feeding pipe 32 to the hose 51 and is sprayed out onto the splice joint through the spray nozzle 521 of the spray pipe 52, and the asphalt raw material fills the splice joint. When the transport vehicle 1 moves, it drives the pressure roller 4 to rotate. The rotation of the pressure roller 4, through the connection of pulley 61, pulley 62, and belt 63, drives the rotating rod 64 to rotate. The rotation of the rotating rod 64, through the limiting block 651, drives gear 65 to rotate, which in turn drives the rotating rod 54 to rotate under the meshing action of gear 65 and gear 66. As the rotating rod 54 rotates, the scraper 55 smooths the filled asphalt material, which is then compacted by the pressure roller 4, thus completing the filling and repair of the joint. Repairing the joint does not require manual work by construction personnel, reducing their workload and improving construction convenience.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An asphalt pavement paving device, comprising a transport vehicle (1), the transport vehicle (1) having a cab (11) and a tail (12), characterized in that: The transport vehicle (1) is equipped with: The asphalt mixing device (2) is located at the upper end of the rear (12) of the vehicle and is used to mix and heat the asphalt raw materials. The asphalt mixing device (2) has a feed inlet (21) near the front (11) of the vehicle. The spraying assembly (3) includes a spray head (31), a feeding pipe (32) and a drive pump (33). The spray head (31) is located at the rear of the vehicle (12) away from the front of the vehicle (11). The lower end of the spray head (31) is provided with several nozzles (311). One end of the feeding pipe (32) is connected to the spray head (31), and the other end is connected to the asphalt mixing device (2). The drive pump (33) is fixedly connected to the feeding pipe (32) and is used to drive the asphalt in the asphalt mixing device (2) to flow to the spray head (31). The pressure roller (4) is located at the end of the spray head (31) away from the transport vehicle (1). The rear (12) of the vehicle is provided with two sets of connecting arms (14) in the horizontal direction. The pressure roller (4) is located between the two sets of connecting arms (14), and the pressure roller (4) is rotatably connected to the two connecting arms (14) in the circumferential direction. The caulking assembly (5) includes a hose (51), a spray pipe (52), a mounting block (53), a rotating rod (54), and several scrapers (55). A crossbeam (141) is fixedly connected between two connecting arms (14). The crossbeam (141) is located between the spray head (31) and the pressure roller (4). The mounting block (53) is located at the lower end of the crossbeam (141). The spray pipe (52) is fixed to the side of the mounting block (53) near the spray head (31). The hose (51) is equipped with a switch valve (511). One end of the hose (51) is connected to the feed pipe (32). One end is connected to the spray pipe (52), the other end is connected to the spray pipe (52), the spray pipe (52) is set vertically, and the lower end of the spray pipe (52) is opened with a spray port (521) connected to the hose (51). The rotating rod (54) is located on the side of the mounting block (53) away from the spray pipe (52), and the rotating rod (54) is rotatably connected to the mounting block (53) vertically. Several scrapers (55) are located at the lower end of the rotating rod (54) and are set around the circumference of the rotating rod (54). When the spray pipe (52) sprays out asphalt, the lower end face of the scraper (55) is flush with the upper end face of the asphalt layer. The drive assembly (6), located between the pressure roller (4) and the caulking assembly (5), is used to drive the rotating rod (54) to rotate.

2. The asphalt pavement paving equipment according to claim 1, characterized in that: Both connecting arms (14) are provided with connecting holes (142). The connecting arm (14) is rotatably connected to a bushing (143). The bushing (143) is located inside the connecting hole (142) and is rotatably connected to the inner wall of the connecting hole (142). The connecting arm (14) is provided with a polygonal prism (144). The polygonal prism (144) passes through the bushing (143) and is inserted into the pressure roller (4). The end of the polygonal prism (144) away from the pressure roller (4) is fixedly connected to a mounting plate (145). The mounting plate (145) is provided with several connecting bolts (146). All connecting bolts (146) pass through the mounting plate (145) and are threadedly connected to the bushing (143).

3. The asphalt pavement paving equipment according to claim 1, characterized in that: The lower end of the spray head (31) is fixedly connected to a plurality of spray heads (34) corresponding one-to-one with the nozzles (311). Each spray head (34) is connected to the corresponding nozzle (311). Each spray head (34) is hinged to a cover (341). The spray head (31) is provided with a cylinder (342) corresponding one-to-one with the spray head (34). The output end of the cylinder is hinged to the cover (341) of the corresponding spray head (34).

4. The asphalt pavement paving equipment according to claim 1, characterized in that: At least two parallel sliding rods (151) are fixedly connected to the lower end of the cross frame (141). All sliding rods (151) are arranged along the length of the cross frame (141). Each sliding rod (151) passes through a mounting block (53) and is slidably connected to the mounting block (53). A lead screw (152) is rotatably connected to the cross frame (141). The lead screw (152) passes through the mounting block (53) and is threadedly connected to the mounting block (53). The cross frame (141) is provided with a motor (153) for driving the lead screw (152) to rotate.

5. An asphalt pavement paving device according to claim 2, characterized in that: The drive assembly (6) includes a pulley (61), a pulley (62), a belt (63), a rotating rod (64), a gear (65), and a gear (66). The pulley (61) is coaxially fixed with any bushing (143). The rotating rod (64) is rotatably connected to the crossbeam (141). The pulley (62) is fixedly connected to the end of the rotating rod (64) near the pulley (61). The belt (63) is wrapped around the outside of the pulleys (61) and (62), and the belt (63) is tumblingly connected to both the pulleys (61) and (62). The rotating rod (64) passes through the gear (65) and is coaxially arranged with the gear (65). Gear 1 (65) is fixedly connected to a limiting block (651). The rotating rod (64) has a limiting groove (641) adapted to the limiting block (651) along its length. The limiting block (651) is inserted into the limiting groove (641). The mounting block (53) is fixedly connected to a support ring (531) adapted to gear 1 (65). Gear 1 (65) has an annular groove (652) adapted to the support ring (531) along its circumferential direction. The support ring (531) is located in the annular groove (652) and is rotatably connected to gear 1 (65). Gear 2 (66) is fixedly connected to the upper end of the rotating rod (54) and meshes with gear 1 (65).

6. The asphalt pavement paving equipment according to claim 1, characterized in that: The spray pipe (52) is provided with two sets of limiting plates (522), both sets of limiting plates (522) are located inside the spray nozzle (521), the spray nozzle (521) is rectangular, the two sets of limiting plates (522) are respectively located on both sides of the spray nozzle (521) along the width direction, the upper end of the limiting plates (522) is rotatably connected to the spray pipe (52), the mounting block (53) is fixedly provided with cylinder two (523), the output end of cylinder two (523) is fixedly connected to a moving block (525), the lower end of the two sets of limiting plates (522) is provided with connecting plates (524), one end of the two connecting plates (524) is rotatably connected to the moving block (525), and the other end is rotatably connected to the corresponding limiting plate (522).

7. The asphalt pavement paving equipment according to claim 1, characterized in that: Several scrapers (55) are fixedly connected to the upper ends of the same connecting post (551). The connecting post (551) has a polygonal cross-section. The rotating rod (54) has a vertical hole (541) adapted to the connecting post (551) along the circumferential direction. The connecting post (551) is located in the vertical hole (541) and is slidably connected to the rotating rod (54) along the axial direction of the vertical hole (541). The rotating rod (54) has a clearance opening (542) adapted to the scraper (55) along the vertical direction. 55) A relief opening (542) is provided and fits against the inner wall of the relief opening (542). A threaded rod (543) is rotatably connected to the rotating rod (543). The threaded rod (543) is located in the vertical hole (541). The threaded rod (543) passes through the connecting post (551) and is threadedly engaged with the connecting post (551). A handle (544) is fixedly connected to the upper end of the threaded rod (543). An opening (545) is provided on the rotating rod (544) to match the handle (544).

8. The asphalt pavement paving equipment according to claim 1, characterized in that: The upper end of the rear (12) of the vehicle is provided with an exhaust pipe (13), which is connected to an exhaust fan (131). One end of the exhaust pipe (13) is fixedly connected to an air inlet (132) corresponding to the feed inlet (21). The end of the exhaust pipe (13) away from the air inlet (132) is equipped with a filter cartridge (133) for removing odors.

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