A highway pavement asphalt mixture paving device

Abstract

The application discloses a highway pavement asphalt mixture paving device and belongs to the technical field of road construction. The device comprises a vehicle body, a loading bucket fixedly arranged on the vehicle body, a T-shaped connecting plate fixedly arranged at the front of the vehicle body, a front surface of the T-shaped connecting plate far from the ground, a back surface of the T-shaped connecting plate close to the ground, a cylinder one fixedly arranged on the back surface of the T-shaped connecting plate, a gear plate fixedly arranged on the output end of the cylinder one, and a connecting plate fixedly connected between the gear plate and the T-shaped connecting plate. Two symmetrical discharging structures are rotatably arranged on the connecting plate. The gear plate is fixed on the output end of the cylinder one through the cylinder one arranged on the T-shaped connecting plate. When facing roads with different widths, the staff can drive the gear plate to move through the cylinder one, control the rotation of the gear, adjust the included angle between the discharging structure and the T-shaped connecting plate, and complete the paving work on different pavements.

Description

Technical Field

[0001] This invention belongs to the field of road construction technology, and in particular relates to a road pavement asphalt mixture paving device. Background Technology

[0002] Asphalt can be mainly divided into three types: coal tar pitch, petroleum asphalt, and natural asphalt. Coal tar pitch is a byproduct of coking. Petroleum asphalt is the residue after crude oil distillation. Natural asphalt is stored underground, sometimes forming mineral layers or accumulating on the earth's surface. Asphalt is mainly used in industries such as coatings, plastics, and rubber, as well as in road paving. During road construction, asphalt paving equipment is often used to lay asphalt on the road surface.

[0003] An asphalt paver is a specialized machine that spreads asphalt mixture evenly and smoothly according to specified requirements. Existing asphalt paver systems mainly consist of a hopper, chain conveyor, auger, vibrator, paving plate, traveling mechanism, and engine. During operation, the chain conveyor transports the material from the hopper to the paving plate, and the engine, carrying the traveling mechanism, moves the material to complete the paving work. staff Different sizes of pavers are installed depending on the measured road width to ensure convenient operation for paving the road surface. However, when the paver is working at an intersection, the road surface may merge or disperse, which may cause the road width to expand or shrink. Since traditional pavers often only have automatic leveling function and the length of the pavers is not adjustable, when the road surface widens, the pavers are usually repeated to complete the work. However, when the road surface narrows, the pavers need to be replaced to complete the work.

[0004] To address these issues, we propose a highway pavement asphalt mixture paving device. Summary of the Invention

[0005] The purpose of this invention is to solve the problem in the prior art where the road width may increase or decrease due to the merging or dispersing of roads. Since the length of the material feeding structure is fixed, when the road widens, the work is usually completed by repeated paving. However, when the road narrows, the workers need to change the material feeding structure to complete the work. Regardless of the change in road width, it increases the working time of the workers, which is time-consuming and labor-intensive. Therefore, this invention proposes a highway asphalt mixture paving device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A road asphalt mixture paving device includes a vehicle body, a material loading hopper fixedly mounted on the vehicle body, a T-shaped connecting plate fixedly mounted at the front of the vehicle body, with the side of the T-shaped connecting plate away from the ground being the front and the side of the T-shaped connecting plate close to the ground being the back. A cylinder is fixedly mounted on the back of the T-shaped connecting plate, a toothed plate is fixedly mounted on the output end of the cylinder, and the toothed plate is fixedly connected to the T-shaped connecting plate. Two symmetrically arranged material feeding structures are rotatably mounted on the connecting plate. A discharge pipe is fixedly mounted on the material loading hopper, and the other end of the discharge pipe is fixedly connected to the material feeding structures. A transmission device for controlling the rotation angle of the material feeding structures is provided on the cylinder.

[0008] The transmission device includes two rotating shafts rotatably mounted on a T-shaped connecting plate. Gears are fixedly mounted on both rotating shafts, and both gears mesh with a toothed plate. The feeding structure includes a shell, a screening channel one, and an auger. The screening channel one is fixedly connected to the shell, and the auger is fixedly connected to the shell. Two long plates are fixedly mounted on the outer wall of the shell, and both long plates are fixedly connected to the rotating shafts.

[0009] Two sets of wheels are rotatably mounted on the vehicle body, and a conical wheel is rotatably mounted on the vehicle body. A transmission unit for controlling the rotation speed of the conical wheel is provided between the conical wheel and the wheels. A transmission mechanism for controlling the rotation speed of the auger is provided between the auger, the cylinder and the conical wheel.

[0010] Preferably, a motor is fixedly installed on the top of the filling barrel, a stirring rod is fixedly installed on the output end of the motor, and a scraper is fixedly installed on the stirring rod. The scraper is inclined and fits against the inner wall of the filling barrel. A discharge port is opened on the top of the filling barrel, and a locking structure for locking the discharge port valve is provided on the discharge port.

[0011] Preferably, the locking structure includes a baffle rotatably mounted on the filling barrel, the baffle being connected to the outer wall of the filling barrel via a hinge, a limit frame being fixedly mounted on the outer peripheral side wall of the filling barrel, a limit rod being rotatably mounted on the limit frame, a groove being provided on the baffle, a screw wheel being threadedly connected to the limit rod, and a sliding connection being made between the limit rod and the groove.

[0012] Preferably, the bottom of the outer shell has multiple discharge ports that are evenly distributed among each other, and the first screening channel has multiple screening holes that are located above the discharge ports.

[0013] Preferably, the transmission mechanism includes a shaft rotatably mounted on the front of the T-shaped connecting plate, with a bevel gear one fixedly mounted on the end of the shaft away from the vehicle body, and two bevel gears two rotatably mounted on the T-shaped connecting plate that mesh with the auger wheel one, and the two bevel gears two being connected to the auger via universal joints two respectively, and a transmission structure is provided between the shaft and the bevel gears.

[0014] Preferably, the transmission structure includes a bracket fixedly mounted on the reverse side of the T-shaped connecting plate, a pulley rotatably mounted on the bracket, another pulley fixedly mounted on the end of the shaft near the vehicle body, the two pulleys being connected by a belt drive, a support frame fixedly mounted on the toothed plate, a guide rod rotatably mounted on the support frame, a limit plate fixedly mounted on the circumference of the guide rod, a slot being provided on the pulley on the bracket, the guide rod passing through the pulley on the bracket and the limit plate engaging with the slot, and a pulley fixedly mounted on the end of the guide rod away from the support frame, the pulley being in contact with the outer circumference of the conical wheel.

[0015] Preferably, the screening device includes a second cylinder fixedly mounted on the outer casing, a second screening channel slidably mounted on the first screening channel, a cylinder fixedly mounted on the second screening channel, and the cylinder and the output end of the second cylinder fixedly connected by a fixing plate. Both the first screening channel and the second screening channel are provided with screening holes of the same diameter.

[0016] Preferably, the transmission unit includes a connecting shaft rotatably mounted on the vehicle body, a worm gear fixedly mounted on the wheel, a worm wheel meshing with the worm gear fixedly mounted on one end of the connecting shaft, and a universal joint connecting the other end of the connecting shaft to a tapered wheel.

[0017] Preferably, a collection bucket is fixedly provided on the outer shell, and the collection bucket is located below the end of the auger.

[0018] Preferably, the blades of the two augers on the feeding structure rotate in opposite directions, and the length of the two augers is equal to the length of the screening channel one.

[0019] In summary, the technical effects and advantages of this invention are as follows:

[0020] 1. This highway pavement asphalt mixture paving device uses a motor installed on the loading hopper and a mixing rod fixedly installed on the motor output end to mix the asphalt in the loading hopper, and uses a scraper to scrape off the material adhering to the inner wall of the loading hopper to prevent it from solidifying and sticking to the inner wall of the loading hopper.

[0021] 2. By fixing the cylinder one on the T-shaped connecting plate to the toothed plate at the output end of the cylinder one, when facing roads of different widths, the operator can drive the toothed plate to move through the cylinder one, thereby controlling the rotation of the gear and adjusting the angle between the material feeding structure and the T-shaped connecting plate, thus enabling paving operations to be completed on different road surfaces.

[0022] 3. By using connecting rods mounted on the wheels of the machine body and worm gears fixed on the connecting rods, the worm gears can be driven to rotate when the machine moves. This rotation is then achieved through universal joint one, which drives the conical wheel to rotate. The rotation of the conical wheel drives the pulley to rotate, which in turn drives the bevel gear one to rotate. The rotation of bevel gear one drives the two meshing bevel gears two to rotate, which in turn drives the auger to rotate. This allows the feeding structure to control the feeding speed more precisely with the machine's movement. When the toothed plate is moved by cylinder one, the toothed plate pushes the guide rod, changing the contact surface between the pulley and the conical wheel, thereby adjusting the rotation speed of the guide rod and ensuring the stability of the feeding speed in different states. Attached Figure Description

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

[0024] Figure 2 This is a schematic diagram of the internal structure of the material loading barrel of the present invention;

[0025] Figure 3 The structure of this invention Figure 1 Enlarged structural diagram at point A in the middle;

[0026] Figure 4 This is a schematic diagram of the bottom of the structure of the present invention;

[0027] Figure 5 The structure of this invention Figure 4 Enlarged structural diagram at point B;

[0028] Figure 6 This is a schematic diagram of the material cutting structure of the present invention;

[0029] Figure 7 The structure of this invention Figure 6 Enlarged structural diagram at point C;

[0030] Figure 8 The structure of this invention Figure 1 Enlarged structural diagram at point D;

[0031] Figure 9 This is a schematic diagram of the working state of the material feeding structure of the present invention. Figure 1 ;

[0032] Figure 10 This is a schematic diagram of the working state of the material feeding structure of the present invention. Figure 2 .

[0033] In the diagram: 1. Vehicle body; 2. Loading hopper; 3. T-shaped connecting plate; 4. Cylinder 1; 5. Gear plate; 6. Rotating shaft; 7. Gear; 8. Outer casing; 9. Screening channel 1; 10. Screwdriver; 11. Long plate; 12. Wheel; 13. Connecting shaft; 14. Worm gear; 15. Worm wheel; 16. Conical wheel; 17. Universal joint 1; 18. Motor; 19. Agitator rod; 20. Scraper; 21. 21. Baffle; 22. Hinge; 23. Limiting frame; 24. Limiting rod; 25. Tightening wheel; 26. Discharge port; 27. Shaft; 28. Bevel gear one; 29. ​​Bevel gear two; 30. Universal joint two; 31. Bracket; 32. Pulley; 33. Collection bucket; 34. Support frame; 35. Guide rod; 36. Limiting plate; 37. Pulley; 38. Cylinder two; 39. Screening channel two; 40. Cylinder. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] This invention provides a highway asphalt mixture paving device. A toothed plate fixed to the output end of a cylinder mounted on a T-shaped connecting plate allows the toothed plate to extend and retract when the cylinder is activated. This extension and retraction drives two gears meshing with the toothed plate, which in turn rotates two material feeding structures fixed to a rotating shaft. This allows the device to pave roads of varying widths, solving the problem of road width changes due to merging or diverging. In existing technologies, the fixed length of the material feeding structures necessitates repeated paving when the road widens, but requires workers to replace the material feeding structures when the road narrows, regardless of the road width. This increases the time and effort required for workers.

[0036] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0037] Reference Figure 1 A road surface asphalt mixture paving device includes a vehicle body 1, a material loading bucket 2 fixedly installed on the vehicle body 1, and a T-shaped connecting plate 3 fixedly installed at the front of the vehicle body 1.

[0038] Reference Figure 1-3A motor 18 is fixedly installed on the top of the loading hopper 2. A stirring rod 19 is fixedly installed on the output end of the motor 18, and a scraper 20 is fixedly installed on the stirring rod 19. The scraper 20 is inclined and fits against the inner wall of the loading hopper 2. The top of the loading hopper 2 has a discharge port, which is equipped with a locking structure for locking the discharge port valve. After asphalt is filled into the loading hopper 2, the motor 18 is started, causing the stirring rod 19 fixed on the output end of the motor 18 to rotate, thus stirring the... The mixing rod 19 can stir the asphalt in the loading bucket 2 and delay the asphalt curing time. Since the asphalt itself has strong viscosity, it will adhere to the inner wall of the loading bucket 2 during the stirring process of the mixing rod 19. At this time, the scraper 20 fixed on the mixing rod 19 can scrape off the material on the side wall of the loading bucket 2, and the inclined scraper 20 ensures that the material can move to the bottom of the scraper 20 and the bottom of the loading bucket 2, thus ensuring the cleanliness of the inner wall of the loading bucket 2.

[0039] Reference Figure 2-4 The locking structure includes a baffle 21 rotatably mounted on the filling barrel 2. The baffle 21 is connected to the outer wall of the filling barrel 2 via a hinge 22. A limit frame 23 is fixedly mounted on the outer peripheral side wall of the filling barrel 2. A limit rod 24 is rotatably mounted on the limit frame 23. A groove is provided on the baffle 21. A screw wheel 25 is threadedly connected to the limit rod 24. The limit rod 24 is slidably connected to the groove. Through the limit frame 23 mounted on the outer wall of the filling barrel 2, when the filling barrel 2 needs to be filled, the operator can rotate the screw wheel 25 and use the screw wheel 25 to push the limit rod 24 out of the groove. Then, the baffle 21 can be pulled up by the pull rod on the baffle 21 to open the feed port. After filling is completed, the limit rod 24 can be pushed back into the groove and the screw wheel 25 can be rotated to complete the fixing.

[0040] The T-shaped connecting plate 3 includes a vertical plate fixedly mounted on the front end of the vehicle body 1 and a horizontal plate fixedly mounted on the vertical plate. A cylinder 4 is fixedly mounted on the reverse side of the T-shaped connecting plate 3. A toothed plate 5 is fixedly mounted on the output end of the cylinder 4. The toothed plate 5 is fixedly connected to the T-shaped connecting plate 3. Two symmetrically arranged feeding structures are rotatably mounted on the T-shaped connecting plate 3. A discharge pipe is fixedly mounted on the loading hopper 2. The other end of the discharge pipe is fixedly connected to the feeding structure. A transmission device is provided on the cylinder 4 to control the rotation angle of the feeding structure.

[0041] The transmission device includes two rotating shafts 6 rotatably mounted on the T-shaped connecting plate 3. Gears 7 are fixedly mounted on both rotating shafts 6, and both gears 7 mesh with the toothed plate 5. The feeding structure includes a housing 8, a screening channel 9, and an auger 10. The screening channel 9 is fixedly connected to the housing 8.

[0042] Reference Figure 4-5Multiple discharge ports 26 are provided on the bottom of the outer casing 8, and the multiple discharge ports 26 are evenly distributed among them. Multiple screening holes are provided on the screening channel 9, and the screening channel 9 is located above the discharge ports 26. By setting multiple discharge ports 26 on the bottom of the outer casing 8, the material falling from the screening channel 9 can be spread on the road surface.

[0043] The auger 10 is fixedly connected to the outer casing 8. Two long plates 11 are fixedly installed on the outer side wall of the outer casing 8, and both long plates 11 are fixedly connected to the rotating shaft 6.

[0044] Reference Figure 4-6 Two sets of wheels 12 are rotatably mounted on the body body 1. A conical wheel 16 is rotatably mounted on the body body 1. A transmission unit for controlling the rotation speed of the conical wheel 16 is provided between the conical wheel 16 and the wheels 12. A transmission mechanism for controlling the rotation speed of the auger 10 is provided between the auger 10, the cylinder 4 and the conical wheel 16.

[0045] Reference Figure 6-7 The transmission mechanism includes a shaft 27 rotatably mounted on the front of the T-shaped connecting plate 3, with a bevel gear 28 fixedly mounted on the end of the shaft 27 away from the vehicle body 1. Two bevel gears 29 rotatably mounted on the T-shaped connecting plate 3, meshing with the bevel gear 28, and the two bevel gears 29 are respectively connected to the auger 10 via universal joints 30. A transmission structure is provided between the shaft 27 and the conical wheel 16. Through the bevel gear 28 mounted on the T-shaped connecting plate 3, when the bevel gear 28 rotates, it achieves the function of meshing with the bevel gear 28. The two meshing bevel gears 29 rotate. When the bevel gears 29 rotate, they drive the auger 10 to rotate through the universal joint 30. The rotation of the auger 10 drives the asphalt material on the screening channel 9 to move. The material is spread on the road surface through the outer shell 8 to complete the operation. Through the universal joint 30 set between the bevel gears 29 and the auger 10, it is ensured that when the outer shell 8 rotates, the angle between the feeding structure and the T-shaped connecting plate 3 changes. The universal joint 30 can ensure that the rotation of the bevel gears 29 can drive the auger 10, which is in different angle positions, to rotate.

[0046] Reference Figure 4-6The transmission structure includes a bracket 31 fixedly mounted on the reverse side of the T-shaped connecting plate 3. A pulley 32 is rotatably mounted on the bracket 31. Another pulley 32 is fixedly mounted on the end of the shaft 27 near the body 1. The two pulleys 32 are connected by a belt drive. A support frame 34 is fixedly mounted on the toothed plate 5. A guide rod 35 is rotatably mounted on the support frame 34. A limit plate 36 is fixedly mounted on the circumference of the guide rod 35. The pulley 32 on the bracket 31 has a slot. The guide rod 35 passes through the pulley 32 on the bracket 31, and the limit plate 36 engages with the slot. A pulley 37 is fixedly mounted on the end of the guide rod 35 away from the support frame 34, and the pulley 37 is in contact with the outer circumference of the conical wheel 16. When adjusting the angle between the two outer shells 8 and the T-shaped connecting plate 3 in the feeding structure, the retractable toothed plate 5 can drive the bracket 31 fixedly mounted on the reverse side of the T-shaped connecting plate 3 to move. When the bracket 31 moves, the pulley 36 rotatably mounted on the support frame 34... The guide rod 35 on 31 moves, causing the pulley 37 fixed at the other end of the guide rod 35 to change its contact position with the conical wheel 16. Since the angular velocity of the conical wheel 16 is the same at all positions on its surface when it rotates, and the conical wheel 16 is set with one end larger and the other end smaller according to the direction of the device's forward movement, the linear velocity at different diameters on the conical wheel 16 is different, causing the pulley 37 to contact different positions on the conical wheel 16. When the horizontal angle between the feeding devices decreases, the cylinder 4 retracts the pulley 37 at the other end of the guide rod 35 and moves it towards the side with the smaller diameter of the conical wheel 16, causing the linear velocity of the pulley 37 to decrease and the rotational speed to decrease. Conversely, when the horizontal angle between the feeding devices increases, the cylinder 4 extends the pulley 37 at the other end of the guide rod 35 and moves it towards the side with the larger diameter of the conical wheel 16, causing the linear velocity of the pulley 37 to increase and the rotational speed to increase, so that the pulley 37 can generate different rotational speeds and the rotational speed of the guide rod 35 changes accordingly.

[0047] Reference Figure 3-5 The transmission unit includes a connecting shaft 13 rotatably mounted on the vehicle body 1, a worm gear 14 fixedly mounted on the wheel 12, a worm wheel 15 meshing with the worm gear 14 fixedly mounted on one end of the connecting shaft 13, and a universal joint 17 connecting the other end of the connecting shaft 13 to the conical wheel 16. During the operation of the device, the wheel 12 fixedly mounted at the front of the device rotates, which drives the worm gear 14 on the wheel 12 to rotate, thereby driving the worm wheel 15 fixedly mounted on the connecting shaft 13 to rotate. The worm wheel 15 drives the conical wheel 16 to rotate through the universal joint 17. When the moving speed of the device is fast, the rotation speed of the conical wheel 16 will be faster, which will cause the pulley 37 that is in contact with the conical wheel 16 to rotate faster. The pulley 37 will rotate through the belt and drive the shaft 27 to rotate. The speed at which the auger 10 transports materials will be controlled by the bevel gear 28.

[0048] Reference Figure 6-8The screening device includes a second cylinder 38 fixedly mounted on the outer casing 8, a second screening channel 39 slidably mounted on the first screening channel 9, and a cylinder 40 fixedly mounted on the second screening channel 39. The cylinder 40 is fixedly connected to the output end of the second cylinder 38 by a fixing plate. Both the first screening channel 9 and the second screening channel 39 have screening holes of the same diameter. When it is necessary to adjust the size of the discharged particles of the feeding structure, the operator starts the second cylinder 38, causing the fixing plate fixedly mounted on the output end of the second cylinder 38 to move. The fixing plate drives the second screening channel 39 fixedly connected to it to move. When the second screening channel 39 moves, the screening holes on the first screening channel 9 and the second screening channel 39 intersect, thereby changing the size of the discharged particles and completing the screening work. This ensures that the operation can be completed on some special road sections and that the asphalt pavement meets the specifications.

[0049] The length of the toothed plate 5 is greater than the circumference of the gear 7. By setting the length of the toothed plate 5 to be greater than the circumference of the gear 7, the gear 7 will not disengage from the toothed plate 5 during its movement. This ensures that the movement of the toothed plate 5 can adjust and control the rotation of the gear 7 at all times, and ensures control over the angle between the material feeding structure and the T-shaped connecting plate 3.

[0050] Reference Figure 1-2 A collection bucket 33 is fixedly installed on the outer shell 8, and the collection bucket 33 is located below the end of the auger 10. The collection bucket 33 installed on the outer shell 8 enables the collection of materials transported out by the auger 10, which is convenient for secondary use.

[0051] Reference Figure 1-3 The blades of the two augers 10 on the feeding structure rotate in opposite directions, and the length of the two augers 10 is equal to the length of the screening channel 9. By setting the blades of the two augers 10 to rotate, it is ensured that the material on the screening channel 9 can move to both ends to complete the asphalt paving operation.

[0052] Working principle:

[0053] When using this device, first move it to a suitable position, fill the asphalt to be paved into the loading hopper 2, and then start the motor 18 via the control console. The motor 18 drives the mixing rod 19 on its output end to rotate and mix the material inside the loading hopper 2. During the paving process, when the width of the road changes, start the cylinder 4 to move the toothed plate 5 fixed on the output end of the cylinder 4. During the movement of the toothed plate 5, it drives the two gears 7 meshing with it to rotate, thereby driving the outer shell 8 of the material feeding structure to rotate. Adjust the angle between the two material feeding structures and the T-shaped connecting plate 3 to complete the paving operation on roads of different widths. When the device moves quickly, the wheels 1 fixed at its bottom... 2. As the rotational speed increases, the guide rod 35 rotates via the conical wheel 16, which in turn drives the shaft 27 to rotate via the belt and pulley 32. This causes the bevel gear 28 fixed on the shaft 27 to rotate, which in turn drives the bevel gear 29 meshing with it. When the bevel gear 29 rotates, it drives the auger 10 to rotate and transport materials via the universal joint 30. The faster the device speed, the faster the auger 10 rotates. When the cylinder 4 extends or retracts, it moves the toothed plate 5, causing the guide rod 35, which is mounted on the toothed plate 5, to move. This changes the contact surface between the pulley 37 fixed on the other end of the guide rod 35 and the conical wheel 16. When the linear velocity of the cover pulley 37 ensures that the angle between the material feeding structure and the T-shaped connecting plate 3 changes, such as... Figure 9 and Figure 10 As shown, the amount of material poured within a unit path is kept within a constant range to avoid the situation where the asphalt is laid too thickly or too thinly.

[0054] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A highway pavement asphalt mixture paving device, comprising a vehicle body (1), characterized in that, A loading hopper (2) is fixedly installed on the vehicle body (1). A T-shaped connecting plate (3) parallel to the ground is fixedly installed at the front of the vehicle body (1). The T-shaped connecting plate (3) includes a vertical plate fixedly installed on the front end of the vehicle body (1) and a horizontal plate fixedly installed on the vertical plate. A cylinder (4) is fixedly installed on the horizontal direction of the reverse side of the vertical plate. A toothed plate (5) is fixedly installed on the output end of the cylinder (4). The toothed plate (5) is slidably connected to the T-shaped connecting plate (3). Two symmetrically arranged feeding structures are rotatably arranged on the T-shaped connecting plate (3) in the horizontal direction. A discharge pipe is fixedly installed on the loading hopper (2). The other end of the discharge pipe is fixedly connected to the feeding structure. A screening device for controlling the size of the material discharge is provided on the feeding structure. A transmission device for controlling the rotation angle of the feeding structure in the horizontal direction is provided on the cylinder (4). The transmission device includes two rotating shafts (6) that are rotatably arranged perpendicular to the horizontal plate. Gears (7) are fixedly arranged on both rotating shafts (6), and both gears (7) mesh with the toothed plate (5). The feeding structure includes a shell (8), a screening channel (9), and an auger (10). The screening channel (9) is fixedly connected to the shell (8), and the auger (10) is fixedly connected to the shell (8). Two long plates (11) are fixedly arranged on the outer side wall of the shell (8), and both long plates (11) are fixedly connected to the rotating shafts (6). Two sets of wheels (12) are rotatably mounted on the vehicle body (1). A conical wheel (16) is rotatably mounted on the vehicle body (1). A transmission unit for controlling the rotation speed of the conical wheel (16) is provided between the conical wheel (16) and the wheels (12). A transmission mechanism for controlling the rotation speed of the auger (10) is provided between the auger (10), cylinder (4) and the conical wheel (16). The transmission mechanism includes a shaft (27) rotatably mounted on the front of a T-shaped connecting plate (3), and a bevel gear (28) fixedly mounted on the end of the shaft (27) away from the vehicle body (1). Two bevel gears (29) meshing with the bevel gears (28) are rotatably mounted on the T-shaped connecting plate (3), and the two bevel gears (29) are respectively connected to the auger (10) via universal joints (30). A transmission structure is provided between the shaft (27) and the conical wheel (16). The transmission structure includes a bracket (31) fixedly mounted on the back of the T-shaped connecting plate (3), and a pulley (32) rotatably mounted on the bracket (31). The shaft (27) is supported by a belt pulley (32). Another pulley (32) is fixedly installed on one end of the vehicle body (1). The two pulleys (32) are connected by belt drive. A support frame (34) is fixedly installed on the toothed plate (5). A guide rod (35) is rotatably installed on the support frame (34). A limit plate (36) is fixedly installed on the circumferential surface of the guide rod (35). The pulley (32) on the bracket (31) has a slot. The guide rod (35) passes through the pulley (32) on the bracket (31) and the limit plate (36) engages with the slot. A pulley (37) is fixedly installed on the end of the guide rod (35) away from the support frame (34), and the pulley (37) is in contact with the outer circumferential surface of the conical wheel (16).

2. The asphalt mixture paving device for highway pavement according to claim 1, characterized in that, A motor (18) is fixedly installed on the top of the loading barrel (2). A stirring rod (19) is fixedly installed on the output end of the motor (18). A scraper (20) is fixedly installed on the stirring rod (19). The scraper (20) is inclined and fits against the inner wall of the loading barrel (2). A discharge port is opened on the top of the loading barrel (2). A locking structure for locking the discharge port valve is provided on the discharge port.

3. The asphalt mixture paving device for highway pavement according to claim 2, characterized in that, The locking structure includes a baffle (21) rotatably mounted on the loading barrel (2). The baffle (21) is connected to the outer wall of the loading barrel (2) via a hinge (22). A limit frame (23) is fixedly mounted on the outer peripheral side wall of the loading barrel (2). A limit rod (24) is rotatably mounted on the limit frame (23). A groove is provided on the baffle (21). A screw wheel (25) is threaded onto the limit rod (24). The limit rod (24) is slidably connected to the groove.

4. The asphalt mixture paving device for highway pavement according to claim 1, characterized in that, The bottom of the outer shell (8) is provided with multiple discharge ports (26), and the multiple discharge ports (26) are evenly distributed among each other. The first screening channel (9) is provided with multiple screening holes, and the first screening channel (9) is located above the discharge ports (26).

5. The asphalt mixture paving device for highway pavement according to claim 1, characterized in that, The screening device includes a second cylinder (38) fixedly mounted on the outer shell (8), a second screening channel (39) slidably mounted on the first screening channel (9), a cylinder (40) fixedly mounted on the second screening channel (39), the cylinder (40) and the output end of the second cylinder (38) are fixedly connected by a fixing plate, and both the first screening channel (9) and the second screening channel (39) are provided with screening holes of the same diameter.

6. The asphalt mixture paving device for highway pavement according to claim 1, characterized in that, The transmission unit includes a connecting shaft (13) rotatably mounted on the vehicle body (1), a worm gear (14) fixedly mounted on the wheel (12), a worm wheel (15) meshing with the worm gear (14) fixedly mounted on one end of the connecting shaft (13), and the other end of the connecting shaft (13) being connected to the conical wheel (16) via a universal joint (17).

7. A highway pavement asphalt mixture paving device according to claim 2, characterized in that, A collection bucket (33) is fixedly installed on the outer shell (8), and the collection bucket (33) is located below the end of the auger (10).

8. The asphalt mixture paving device for highway pavement according to claim 1, characterized in that, The blades of the two augers (10) on the feeding structure are arranged in opposite directions, and the length of the two augers (10) is equal to the length of the screening channel (9).

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