Ultrahigh-precision asphalt concrete pavement paving device and use method

Abstract

The invention discloses an ultrahigh-precision asphalt concrete pavement paving device and a using method, and belongs to the technical field of asphalt concrete pavement paving. The ultrahigh-precision asphalt concrete pavement paving device comprises a first supporting frame and a second supporting frame, and a driving mechanism is arranged on one side of the first supporting frame; a paving mechanism is arranged on the driving mechanism, a first pressing roller and a second pressing roller are arranged on the baffle, and adjusting mechanisms are arranged at the two ends of the second pressing roller. According to the asphalt concrete paving device, the paving mechanism is driven by the driving mechanism to move in a reciprocating mode, asphalt concrete paving work at different positions can be achieved, the asphalt concrete is preliminarily leveled through the first pressing roller, and the asphalt concrete is further leveled and compacted through the second pressing roller; and the height and position change of the second pressing roller can be detected through a displacement sensor, the paving flatness of the asphalt concrete and the accuracy of the paving thickness can be improved, and it is ensured that the construction requirement is met.

Description

Technical Field

[0001] The present invention belongs to the technical field of asphalt concrete pavement paving, and particularly relates to an ultra-high-precision asphalt concrete pavement paving device and a usage method thereof. Background Art

[0002] Asphalt concrete is a mixture made by mixing crushed stones with a certain proportion of asphalt. Because of its advantages such as smooth road surface, seamless joints, stable driving, short construction period, and convenient maintenance, it has been widely promoted and used. When laying asphalt concrete, an asphalt concrete paving device is needed to pave the processed asphalt concrete. The Chinese patent with the publication number CN217104614U proposes a high-precision asphalt concrete pavement paving device, which includes side brackets, a spiral roller and a leveling roller connected between the side brackets for leveling the asphalt, and also includes a dispersion mechanism located in front of the side brackets for dispersing the accumulated asphalt. Among them, the dispersion mechanism includes a support rod installed at the front end of the side bracket, a rotating mechanism rotatably connected to the support rod, dispersion plates circumferentially distributed at the lower end of the rotating mechanism, and a driving mechanism for driving the dispersion plates to rotate. Through the paving device of the present application, the upper part of the accumulated asphalt can be spread to both sides during the rotation and advancement of the dispersion plates, which is convenient for subsequent leveling by the spiral roller and the leveling roller, improves the working efficiency of road surface paving, and is more convenient to use.

[0003] Problems existing in the prior art are: the heights of the two leveling rollers in the above-mentioned paving device are fixed, and when there is a deviation in the paving thickness, the positions of the rollers cannot be adjusted, which is not conducive to subsequent use. Moreover, there is a certain distance between the dispersion plates on both sides, and the asphalt concrete accumulated in the middle cannot be dispersed. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the present invention provides an ultra-high-precision asphalt concrete pavement paving device, which has the advantages of uniform and high-precision paving, and solves the problems that the heights of the two leveling rollers in the above-mentioned paving device are fixed, and when there is a deviation in the paving thickness, the positions of the rollers cannot be adjusted, which is not conducive to subsequent use, and there is a certain distance between the dispersion plates on both sides, and the asphalt concrete accumulated in the middle cannot be dispersed.

[0005] The present invention is implemented as follows. A super-high-precision asphalt concrete pavement paving device includes a first support frame and a second support frame. Both ends of the first support frame and the second support frame are fixedly connected with fixing frames. Legs are fixedly installed on the lower surfaces of both ends of the fixing frames. Casters are fixedly installed at the bottoms of the legs. A baffle is fixedly installed on the lower surface of the fixing frame. A driving mechanism is arranged on one side of the first support frame. A paving mechanism is arranged on the driving mechanism. A first pressing roller and a second pressing roller are arranged on the baffle. Adjusting mechanisms are arranged at both ends of the second pressing roller.

[0006] Preferably, a towing frame is fixedly installed on the upper surfaces of the first support frame and the second support frame. Both ends of the first pressing roller are rotatably installed on two baffles. Adjusting grooves for the movement of the second pressing roller are formed on the baffles.

[0007] Preferably, the driving mechanism includes two mounting plates and a mounting seat. The two mounting plates and the mounting seat are respectively fixedly installed at one end of the two fixing frames. A reciprocating lead screw is rotatably installed on the mounting seat. A first motor is fixedly installed on one of the mounting plates. The output end of the first motor is fixedly connected with one end of the reciprocating lead screw.

[0008] Preferably, a first lead screw sleeve is threadedly sleeved on the lead screw body of the reciprocating lead screw. An active block is fixedly connected to the outside of the first lead screw sleeve. A limiting block is fixedly connected to one side of the active block. The limiting block is slidably connected inside the first support frame.

[0009] Preferably, the paving mechanism includes a connecting plate and two fixing blocks. The connecting plate is fixedly connected to one side of the active block. A mounting rod is rotatably connected to the connecting plate. A gear is fixedly sleeved on the upper end of the mounting rod. The two fixing blocks are respectively fixedly connected to the upper surfaces of the two mounting plates. Rack bars are fixedly connected to the upper ends of the two fixing blocks.

[0010] Preferably, the gear is meshed with the rack bar. A limiting rod is fixedly connected to the lower surface of the connecting plate. The mounting rod is rotatably sleeved inside the limiting rod. Four mounting columns are fixedly connected to the bottom rod body of the mounting rod. Convex blocks are fixedly connected to the tops of the four mounting columns. Connecting sleeves are sleeved on the four mounting columns. Fan blades are fixedly connected to one sides of the four connecting sleeves.

[0011] Preferably, an internal thread sleeve is fixedly sleeved on the middle rod body of the mounting rod. An external thread sleeve is threadedly sleeved on the internal thread sleeve. A rotating ring is rotatably connected to the inside of the lower end of the external thread sleeve. A compression spring is fixedly connected to the lower surface of the rotating ring. A mounting ring is fixedly connected to the bottom of the compression spring. Four limiting sleeves corresponding to the convex blocks are fixedly connected to the lower surface of the mounting ring. The limiting sleeves are sleeved on the convex blocks. The rotating ring, the compression spring and the mounting ring are all sleeved on the mounting rod.

[0012] Preferably, the adjusting mechanism includes a second motor and a guide rod. The second motor and the guide rod are fixedly installed on the lower surface of the fixed frame. One side of the baffle is fixedly connected with a bottom plate. The bottom of the guide rod is fixedly connected to the bottom plate. The output end of the second motor is fixedly connected with a unidirectional lead screw. The bottom of the unidirectional lead screw is rotatably connected to the bottom plate. An activity seat is slidably sleeved on the guide rod.

[0013] Preferably, a second lead screw sleeve is fixedly installed inside one side of the activity seat. The second lead screw sleeve is threadedly sleeved on the unidirectional lead screw. Both ends of the second pressing roller are rotatably connected to one side of the activity seat. A displacement sensor is fixedly installed inside the lower end of the activity seat. A detection plate corresponding to the displacement sensor is fixedly installed on the upper surface of the bottom plate.

[0014] The present invention also provides a use method of a super-high-precision asphalt concrete pavement paving device, which specifically includes the following steps: S1: First, install the device on the tractor through the traction frame, and drive the device to move through the tractor.

[0015] S2: Adjust the height of the second pressing roller according to the specified paving thickness. According to the distance between the detection plates detected by the displacement sensor, the height of the second pressing roller can be obtained. During adjustment, start the second motor to drive the unidirectional lead screw to rotate. Through the threaded cooperation between the unidirectional lead screw and the second lead screw sleeve, the second lead screw sleeve drives the activity seat and the displacement sensor to move downward. When moving to the specified position, turn off the second motor.

[0016] S3: Start the first motor to drive the reciprocating lead screw to rotate. Through the threaded cooperation between the reciprocating lead screw and the first lead screw sleeve, the movable block and the limiting block drive the paving mechanism to reciprocate along the reciprocating lead screw.

[0017] S4: During the movement of the installation rod, through the meshing between the gear and the rack, the gear drives the installation rod and the fan blade to rotate, so that the fan blade rotates around the installation rod during the reciprocating movement, and can evenly pave the accumulated asphalt concrete.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention drives the reciprocating lead screw to rotate through the first motor. Through the threaded cooperation between the reciprocating lead screw and the first lead screw sleeve, the movable block drives the paving mechanism to reciprocate along the reciprocating lead screw. By setting the meshing connection between the gear and the rack, during the movement of the installation rod, the gear drives the installation rod to rotate, thereby driving the fan blade to rotate, and can realize the paving work of asphalt concrete at different positions.

[0019] In the present invention, a connecting sleeve is sleeved on the mounting post, and by rotating the external thread sleeve, the limiting sleeve is driven to move downward, so that the limiting sleeve presses the convex block under the elastic force of the compression spring, thereby realizing the limitation of the fan blade, which can facilitate the installation and disassembly of the fan blade and play a role in facilitating maintenance and cleaning.

[0020] In the present invention, the asphalt concrete is initially leveled by the first pressing roller, further leveled and compacted by the second pressing roller, and the displacement sensor can detect the height and position changes of the second pressing roller. When adjusting the height of the second pressing roller, the second motor drives the one-way lead screw to rotate. Through the threaded cooperation between the one-way lead screw and the second lead screw sleeve, the movable seat drives the displacement sensor to gradually move downward, and the parameters detected by the displacement sensor gradually change. When it descends to the specified position, the second motor is turned off. Through this setting, the flatness of the asphalt concrete paving and the accuracy of the paving thickness can be improved, ensuring that the construction requirements are met. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall three-dimensional structure schematic diagram of the present invention; Figure 2 is of the present invention Figure 1 magnified view of the structure at A in Figure 3 is of the present invention Figure 1 magnified view of the structure at B in Figure 4 is the partial sectional three-dimensional structure schematic diagram of the present invention; Figure 5 is of the present invention Figure 4 magnified view of the structure at D in Figure 6 is the partial structure exploded view of the present invention; Figure 7 is of the present invention Figure 6 magnified view of the structure at E in Figure 8 is of the present invention Figure 1 magnified view of the structure at C in

[0022] In the figure: 1. First support frame; 101. Second support frame; 102. Fixed frame; 103. Leg; 104. Caster; 105. Baffle; 106. Adjustment groove; 2. Paving mechanism; 201. Connecting plate; 202. Mounting rod; 203. Gear; 204. Fixed block; 205. Rack; 206. Limiting rod; 207. Internal thread sleeve; 208. External thread sleeve; 209. Rotating ring; 210. Compression spring; 211. Mounting ring; 212. Limiting sleeve; 213. Mounting column; 214. Protrusion; 215. Fan blade; 216. Connecting sleeve; 3. Driving mechanism; 301. Mounting plate; 302. First motor; 303. Mounting seat; 304. Reciprocating lead screw; 305. First lead screw sleeve; 306. Movable block; 307. Limiting block; 4. Adjusting mechanism; 401. Second motor; 402. Detection plate; 403. One-way lead screw; 404. Guide rod; 405. Movable seat; 406. Second lead screw sleeve; 407. Displacement sensor; 408. Base plate; 5. Towing frame; 6. First pressing roller; 7. Second pressing roller. Detailed implementation manners

[0023] In order to further understand the content, features and effects of the present invention, the following embodiments are exemplified and described in detail with reference to the accompanying drawings.

[0024] The structure of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] As Figures 1 to 8 shown, a super-high-precision asphalt concrete pavement paving device provided by an embodiment of the present invention includes a first support frame 1 and a second support frame 101. Fixed frames 102 are fixedly connected to both ends of the first support frame 1 and the second support frame 101. Legs 103 are fixedly installed on the lower surfaces of both ends of the fixed frame 102. Casters 104 are fixedly installed at the bottoms of the legs 103. A baffle 105 is fixedly installed on the lower surface of the fixed frame 102. A driving mechanism 3 is arranged on one side of the first support frame 1. A paving mechanism 2 is arranged on the driving mechanism 3. A first pressing roller 6 and a second pressing roller 7 are arranged on the baffle 105. An adjusting mechanism 4 is arranged at both ends of the second pressing roller 7.

[0026] Furthermore, a towing frame 5 is fixedly installed on the upper surfaces of the first support frame 1 and the second support frame 101. Both ends of the first pressing roller 6 are rotatably installed on two baffles 105. An adjustment groove 106 for the movement of the second pressing roller 7 is formed on the baffle 105.

[0027] In the present application, the towing frame 5 is used to connect the device to a tractor, and the device is towed and moved by the tractor. Among them, both the first pressing roller 6 and the second pressing roller 7 are used to flatten the asphalt concrete. The first pressing roller 6 is used for preliminary leveling, and the second pressing roller 7 is used for further flattening. The height of the second pressing roller 7 can be accurately adjusted according to the paving thickness, so as to improve the paving accuracy of the asphalt concrete.

[0028] Further, the driving mechanism 3 includes two mounting plates 301 and a mounting base 303. The two mounting plates 301 and the mounting base 303 are respectively fixedly mounted at one end of the two fixing frames 102. A reciprocating lead screw 304 is rotatably mounted on the mounting base 303. A first motor 302 is fixedly mounted on one of the mounting plates 301. The output end of the first motor 302 is fixedly connected to one end of the reciprocating lead screw 304. A first lead screw sleeve 305 is threadedly sleeved on the rod body of the reciprocating lead screw 304. An active block 306 is fixedly connected to the outside of the first lead screw sleeve 305. A limiting block 307 is fixedly connected to one side of the active block 306. The limiting block 307 is slidably connected inside the first support frame 1.

[0029] In the present application, the driving mechanism 3 is used to drive the paving mechanism 2 to reciprocate, so that the asphalt concrete is evenly paved. During operation, by starting the first motor 302 to drive the reciprocating lead screw 304 to rotate, through the threaded cooperation between the reciprocating lead screw 304 and the first lead screw sleeve 305, the first lead screw sleeve 305 drives the active block 306 to move, and the limiting block 307 slides along the inner wall of the first support frame 1, thereby driving the paving mechanism 2 to move synchronously.

[0030] Further, the paving mechanism 2 includes a connecting plate 201 and two fixing blocks 204. The connecting plate 201 is fixedly connected to one side of the active block 306. A mounting rod 202 is rotatably connected to the connecting plate 201. A gear 203 is fixedly sleeved on the upper end of the mounting rod 202. The two fixing blocks 204 are respectively fixedly connected to the upper surfaces of the two mounting plates 301. A rack 205 is fixedly connected to the upper ends of the two fixing blocks 204. The gear 203 is meshed with the rack 205. A limiting rod 206 is fixedly connected to the lower surface of the connecting plate 201. The mounting rod 202 is rotatably sleeved inside the limiting rod 206. Four mounting columns 213 are fixedly connected to the bottom rod body of the mounting rod 202. Convex blocks 214 are fixedly connected to the tops of the four mounting columns 213. Connecting sleeves 216 are sleeved on the four mounting columns 213. Fan blades 215 are fixedly connected to one side of the four connecting sleeves 216.

[0031] In the present application, the paving mechanism 2 is used to push and disperse the accumulated asphalt concrete, facilitating the leveling by the first pressing roller 6 and the second pressing roller 7. During operation, the connecting plate 201 moves synchronously with the active block 306. The connecting plate 201 drives the mounting rod 202 and the gear 203 to move synchronously. Since the position of the rack 205 is fixed and the gear 203 is meshed with the rack 205, the mounting rod 202 is driven to rotate during the movement of the gear 203. The limiting rod 206 is used to limit the mounting rod 202 to improve the stability of the mounting rod 202. The fan blades 215 are detachably sleeved on the mounting columns 213 through the connecting sleeves 216. The fan blades 215 rotate synchronously with the mounting rod 202 to evenly push and disperse the asphalt concrete.

[0032] Further, an internal thread sleeve 207 is fixedly sleeved on the middle rod body of the installation rod 202. An external thread sleeve 208 is threadedly sleeved on the internal thread sleeve 207. A rotating ring 209 is rotatably connected to the inside of the lower end of the external thread sleeve 208. A compression spring 210 is fixedly connected to the lower surface of the rotating ring 209. The bottom of the compression spring 210 is fixedly connected to an installation ring 211. Four limiting sleeves 212 corresponding to the convex blocks 214 are fixedly connected to the lower surface of the installation ring 211. The limiting sleeves 212 are sleeved on the convex blocks 214. The rotating ring 209, the compression spring 210 and the installation ring 211 are all sleeved on the installation rod 202.

[0033] When specifically setting, the connecting sleeve 216 is sleeved on the installation column 213 and slides from the upper end of the installation column 213 to the bottom of the installation column 213, so as to realize the installation of the fan blade 215. A convex block 214 is arranged at the upper end of the installation column 213. After the fan blade 215 is installed, rotate the external thread sleeve 208. Through the thread fit between the external thread sleeve 208 and the internal thread sleeve 207, the external thread sleeve 208 gradually moves downward. The external thread sleeve 208 drives the rotating ring 209, the compression spring 210, the installation ring 211 and the limiting sleeve 212 to move downward synchronously, adjusts the position of the limiting sleeve 212, and makes it correspondingly sleeved on the convex block 214. As the external thread sleeve 208 continues to move downward, the bottom of the limiting sleeve 212 abuts against the upper surface of the connecting sleeve 216, so as to play a role in limiting the connecting sleeve 216 and the fan blade 215. On the contrary, the fan blade 215 can be disassembled from the installation column 213. Through this setting, it is convenient to disassemble and clean the fan blade 215, the installation and disassembly operations are more convenient, and it is convenient for the maintenance of the device.

[0034] Further, the adjusting mechanism 4 includes a second motor 401 and a guide rod 404. The second motor 401 and the guide rod 404 are fixedly installed on the lower surface of the fixed frame 102. One side of the baffle 105 is fixedly connected with a bottom plate 408. The bottom of the guide rod 404 is fixedly connected to the bottom plate 408. The output end of the second motor 401 is fixedly connected with a one-way lead screw 403. The bottom of the one-way lead screw 403 is rotatably connected to the bottom plate 408. A movable seat 405 is slidably sleeved on the guide rod 404. A second lead screw sleeve 406 is fixedly installed inside one side of the movable seat 405. The second lead screw sleeve 406 is threadedly sleeved on the one-way lead screw 403. Both ends of the second pressure roller 7 are rotatably connected to one side of the movable seat 405. A displacement sensor 407 is fixedly installed inside the lower end of the movable seat 405. A detection plate 402 corresponding to the displacement sensor 407 is fixedly installed on the upper surface of the bottom plate 408.

[0035] In this application, the adjusting mechanism 4 is used to precisely adjust the specific position of the second pressing roller 7. Specifically, movable seats 405 are provided at both ends of the second pressing roller 7. The movable seat 405 at the end away from the second motor 401 is slidably sleeved on two guide rods 404. When adjusting the height of one of the movable seats 405, the other movable seat 405 moves synchronously upward or downward along the two guide rods 404. The height of the first pressing roller 6 is higher than that of the second pressing roller 7. After spreading the asphalt concrete, the asphalt concrete is initially leveled by the first pressing roller 6, and then further leveled by the second pressing roller 7 to improve the spreading accuracy. During adjustment, the second motor 401 drives the one-way lead screw 403 to rotate. Through the threaded engagement between the one-way lead screw 403 and the second lead screw sleeve 406, the second lead screw sleeve 406 drives the movable seat 405 and the displacement sensor 407 to move downward. During the movement, the parameters detected by the displacement sensor 407 gradually change. When the specified position is reached, the second motor 401 is turned off.

[0036] As Figures 1 - 8 shown, a method for using a super-high-precision asphalt concrete pavement spreading device provided by an embodiment of the present invention includes the following steps: S1: First, install the device on the tractor through the towing frame 5, and drive the device to move through the tractor.

[0037] S2: Adjust the height of the second pressing roller 7 according to the specified spreading thickness. According to the distance between the detection plates 402 detected by the displacement sensor 407, the height of the second pressing roller 7 can be obtained. During adjustment, start the second motor 401 to drive the one-way lead screw 403 to rotate. Through the threaded engagement between the one-way lead screw 403 and the second lead screw sleeve 406, the second lead screw sleeve 406 drives the movable seat 405 and the displacement sensor 407 to move downward. When the specified position is reached, turn off the second motor 401.

[0038] S3: Start the first motor 302 to drive the reciprocating lead screw 304 to rotate. Through the threaded engagement between the reciprocating lead screw 304 and the first lead screw sleeve 305, the movable block 306 and the limiting block 307 drive the spreading mechanism 2 to reciprocate along the reciprocating lead screw 304.

[0039] S4: During the movement of the mounting rod 202, through the meshing between the gear 203 and the rack 205, the gear 203 drives the mounting rod 202 and the fan blade 215 to rotate, so that the fan blade 215 rotates around the mounting rod 202 during the reciprocating movement, and can spread the piled asphalt concrete evenly.

[0040] In summary, for the ultra-high-precision asphalt concrete pavement paving device, the first motor 302 drives the reciprocating lead screw 304 to rotate. Through the threaded cooperation between the reciprocating lead screw 304 and the first lead screw sleeve 305, the movable block 306 drives the paving mechanism 2 to reciprocate along the reciprocating lead screw 304. By setting the gear 203 and the rack 205 to be meshed and connected, during the movement of the mounting rod 202, the gear 203 drives the mounting rod 202 to rotate, thereby driving the fan blade 215 to rotate, and the asphalt concrete paving work at different positions can be realized. By setting the connecting sleeve 216 to be sleeved on the mounting column 213, and by rotating the external thread sleeve 208 to drive the limit sleeve 212 to move downward, the limit sleeve 212 presses the convex block 214 under the elastic force of the compression spring 210, so as to realize the limitation of the fan blade 215, which is convenient for the installation and disassembly of the fan blade 215, and plays a role in facilitating maintenance and cleaning. The asphalt concrete is initially leveled by the first pressing roller 6, and further leveled and compacted by the second pressing roller 7. The displacement sensor 407 can detect the height and position changes of the second pressing roller 7. When adjusting the height of the second pressing roller 7, the second motor 401 drives the one-way lead screw 403 to rotate. Through the threaded cooperation between the one-way lead screw 403 and the second lead screw sleeve 406, the movable seat 405 drives the displacement sensor 407 to gradually move downward, and the parameters detected by the displacement sensor 407 gradually change. When it drops to the specified position, the second motor 401 is turned off. Through this setting, the flatness of the asphalt concrete paving and the accuracy of the paving thickness can be improved, ensuring that the construction requirements are met.

[0041] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultra-high precision asphalt concrete pavement paving device, comprising a first support frame (1) and a second support frame (101), characterized in that: Both ends of the first support frame (1) and the second support frame (101) are fixedly connected to a fixing frame (102); legs (103) are fixedly mounted on the lower surfaces of both ends of the fixing frame (102); casters (104) are fixedly mounted on the bottoms of the legs (103); a baffle (105) is fixedly mounted on the lower surface of the fixing frame (102); a driving mechanism (3) is arranged on one side of the first support frame (1); a paving mechanism (2) is arranged on the driving mechanism (3); a first pressing roller (6) and a second pressing roller (7) are arranged on the baffle (105); and adjustment mechanisms (4) are arranged on both ends of the second pressing roller (7).

2. The ultra-high precision asphalt concrete pavement paving device according to claim 1, characterized in that: A traction frame (5) is fixedly mounted on the upper surfaces of the first support frame (1) and the second support frame (101), and both ends of the first pressing roller (6) are rotatably mounted on two baffles (105), and the baffles (105) are provided with adjustment slots (106) for the movement of the second pressing roller (7).

3. The ultra-high precision asphalt concrete pavement paving device according to claim 1, characterized in that: The driving mechanism (3) comprises two mounting plates (301) and mounting seats (303), the two mounting plates (301) and mounting seats (303) being fixedly mounted on one end of two fixed frames (102) respectively, a reciprocating screw rod (304) being rotatably mounted on the mounting seats (303), a first motor (302) being fixedly mounted on one of the mounting plates (301), and an output end of the first motor (302) being fixedly connected to one end of the reciprocating screw rod (304).

4. The ultra-high precision asphalt concrete pavement paving device according to claim 3, characterized in that: A first screw sleeve (305) is threadedly sleeved on the shaft of the reciprocating screw (304); a movable block (306) is fixedly connected to the outside of the first screw sleeve (305); a limiting block (307) is fixedly connected to one side of the movable block (306); and the limiting block (307) is slidably connected to the inside of the first support frame (1).

5. The ultra-high precision asphalt concrete pavement paving device according to claim 4, characterized in that: The paving mechanism (2) comprises a connecting plate (201) and two fixed blocks (204); the connecting plate (201) is fixedly connected to one side of a movable block (306); a mounting rod (202) is rotatably connected to the connecting plate (201); a gear (203) is fixedly sleeved on the upper end of the mounting rod (202); the two fixed blocks (204) are respectively fixedly connected to the upper surfaces of the two mounting plates (301); and racks (205) are fixedly connected to the upper ends of the two fixed blocks (204).

6. The ultra-high precision asphalt concrete pavement paving device according to claim 5, characterized in that: The gear (203) is meshingly connected with the rack (205); the lower surface of the connecting plate (201) is fixedly connected to a limiting rod (206); the mounting rod (202) is rotatably sleeved inside the limiting rod (206); four mounting columns (213) are fixedly connected to the bottom of the mounting rod (202); the tops of the four mounting columns (213) are fixedly connected to protrusions (214); the four mounting columns (213) are sleeved with connecting sleeves (216); and one side of the four connecting sleeves (216) is fixedly connected to a fan blade (215).

7. The ultra-high precision asphalt concrete pavement paving device according to claim 6, characterized in that: An internal threaded sleeve (207) is fixedly sleeved on the middle part of the mounting rod (202); an external threaded sleeve (208) is threadedly sleeved on the internal threaded sleeve (207); a rotating ring (209) is rotatably connected to the interior of the lower end of the external threaded sleeve (208); a compression spring (210) is fixedly connected to the lower surface of the rotating ring (209); a mounting ring (211) is fixedly connected to the bottom of the compression spring (210); four limiting sleeves (212) corresponding to the protrusion (214) are fixedly connected to the lower surface of the mounting ring (211); the limiting sleeves (212) are sleeved on the protrusion (214); and the rotating ring (209), the compression spring (210) and the mounting ring (211) are all sleeved on the mounting rod (202).

8. The ultra-high precision asphalt concrete pavement paving device according to claim 1, characterized in that: The adjustment mechanism (4) comprises a second motor (401) and a guide rod (404), the second motor (401) and the guide rod (404) being fixedly mounted on the lower surface of the fixing frame (102), one side of the baffle (105) being fixedly connected to a bottom plate (408), the bottom of the guide rod (404) being fixedly connected to the bottom plate (408), the output end of the second motor (401) being fixedly connected to a one-way screw rod (403), the bottom of the one-way screw rod (403) being rotatably connected to the bottom plate (408), and a movable seat (405) being slidably sleeved on the guide rod (404).

9. The ultra-high precision asphalt concrete pavement paving device according to claim 8, characterized in that: A second screw sleeve (406) is fixedly mounted inside one side of the movable seat (405), the second screw sleeve (406) is threadedly sleeved on the one-way screw (403), both ends of the second pressure roller (7) are rotatably connected to one side of the movable seat (405), a displacement sensor (407) is fixedly mounted inside the lower end of the movable seat (405), and a detection plate (402) corresponding to the displacement sensor (407) is fixedly mounted on the upper surface of the bottom plate (408).

10. A method for using an ultra-high precision asphalt concrete pavement paving device according to any one of claims 1 to 9, characterized in that: The steps include: S1: firstly, the device is mounted on a tractor by means of a traction frame (5), and the tractor drives the device to move; S2: adjusting the height of the second pressure roller (7) according to the specified paving thickness; the height of the second pressure roller (7) can be obtained according to the distance between the detection plate (402) detected by the displacement sensor (407); during adjustment, the second motor (401) is started to drive the one-way screw (403) to rotate; the second screw sleeve (406) drives the movable seat (405) and the displacement sensor (407) to move downward through the threaded engagement between the one-way screw (403) and the second screw sleeve (406); and the second motor (401) is turned off when the movable seat (405) and the displacement sensor (407) are moved to the specified position; S3: starting the first motor (302) to drive the reciprocating screw (304) to rotate, and through the threaded engagement between the reciprocating screw (304) and the first screw sleeve (305), the movable block (306) and the limit block (307) drive the paving mechanism (2) to move back and forth along the reciprocating screw (304); S4: During the movement of the mounting rod (202), the gear (203) and the rack (205) are meshed, so that the gear (203) drives the mounting rod (202) and the fan blade (215) to rotate, so that the fan blade (215) rotates around the mounting rod (202) during the reciprocating movement, thereby evenly spreading the accumulated asphalt concrete.

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