Asphalt mixture paving equipment

Abstract

The utility model relates to the technical field of road construction, and provides asphalt mixture paving equipment which comprises a rack (1), a discharging box (4) and a bulldozing mechanism (5) are arranged on the rack (1) from front to back, an adjusting mechanism (8) used for adjusting the height of the bulldozing mechanism (5) from the ground is arranged between the bulldozing mechanism (5) and the rack (1), a transverse plate (14) is fixedly connected to the rack (1), a second driving motor (15) is installed on the transverse plate (14), and the second driving motor (15) is connected with the rack (1). The output end of the second driving motor (15) is fixedly connected with a threaded rod (16), a movable plate (17) slides in the two second sliding grooves (18), the threaded rod (16) penetrates through and is in threaded connection with the movable plate (17), and a first flattening mechanism (6) and a second flattening mechanism (7) are arranged on the lower end face of the movable plate (17). And the flattening efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction, and more specifically, to an asphalt mixture spreading device. Background Art

[0002] An asphalt pavement paver is a special device widely used in asphalt pavement construction projects such as highways, urban roads, large freight yards, parking lots, docks, and airports. The paver evenly spreads asphalt mixture on the road base and conducts preliminary compaction and leveling. With the rapid development of China's economy, pavers have become indispensable equipment in the road construction process.

[0003] The patent with the publication number CN220813320U discloses an asphalt mixture spreading device, which relates to the technical field of road construction and improves the problem that the pressing roller is fixedly connected to the whole device and the staff cannot replace the pressing roller as needed. It includes a device base, a first connecting block, auxiliary moving wheels, a connecting rod, a second connecting block, a first rotating rod, and a pressing roller. Both ends of the pressing roller are fixedly connected with first fixing plates. The ends of the first rotating rod away from the second connecting block are rotatably connected with second fixing plates. The first fixing plates and the second fixing plates are internally provided with matching fixed threaded holes. Through the cooperation of the device base, the first connecting block, the auxiliary moving wheels, the connecting rod, the second connecting block, the first rotating rod, the pressing roller, the first fixing plates, the second fixing plates, and the fixed threaded holes, the staff can replace pressing rollers of different weights according to needs, effectively improving the applicability of the device. However, the spreading device in the prior art cannot adjust the heights of the pushing plate and the pressing roller, and can only spread a fixed height each time; and it is only flattened by the pressing roller, with low efficiency. Summary of the Utility Model

[0004] The utility model aims to provide an asphalt mixture spreading device to overcome the above-mentioned deficiencies, which can adjust the heights of the pushing plate and the pressing roller, thereby adjusting the spreading thickness according to the spreading requirements, and can improve the flattening efficiency.

[0005] An asphalt mixture spreading device includes a frame. A first roller is installed on the front side of the frame. A feeding box and a leveling mechanism are arranged on the frame from front to back. An adjusting mechanism for adjusting the height of the leveling mechanism from the ground is arranged between the leveling mechanism and the frame. Second chutes are symmetrically opened on both sides inside the frame. A cross plate is fixedly connected to the frame. A second driving motor is installed on the cross plate. The output end of the second driving motor movably penetrates through the cross plate and is fixedly connected with a threaded rod. A moving plate slides in the two second chutes. The threaded rod penetrates and is threadedly connected to the moving plate. A first flattening mechanism and a second flattening mechanism are arranged on the lower end surface of the moving plate.

[0006] Further, a feed inlet is provided on the blanking box. A first rotating rod is rotatably connected inside the blanking box. One end of the first rotating rod penetrates through the blanking box and is fixedly connected to the output end of a first driving motor installed on one side of the blanking box. A spiral blade is fixedly connected to the first rotating rod. A blanking pipe is provided below the blanking box.

[0007] Further, the leveling mechanism includes a second rotating rod rotatably connected to the frame, and a pushing plate is fixedly connected to the second rotating rod.

[0008] Further, the adjusting mechanism includes an adjusting plate that slides at both ends on the frame. First sliding grooves are symmetrically formed on both sides inside the frame. Both ends of the adjusting plate slide in the first sliding grooves on the same side respectively. A connecting rod is hinged between the adjusting plate and the pushing plate.

[0009] Further, a plurality of jack holes are equidistantly formed on the frame. The jack holes communicate with the first sliding grooves. Plug rods are inserted into the jack holes, and the lower ends of the plug rods are inserted into the ends of the adjusting plate.

[0010] Further, the first flattening mechanism includes two vertical plates symmetrically fixedly connected to the lower end surface of the moving plate. A pressing roller is rotatably connected between the two vertical plates.

[0011] Further, the second flattening mechanism includes a connecting frame fixedly connected to the lower end surface of the moving plate. A plurality of positioning rods penetrate through and slide on the connecting frame. A pressing plate is fixedly connected to the lower ends of the positioning rods. A hanging ring is fixedly connected to the lower end surface of the connecting frame. A third rotating rod is rotatably connected inside the hanging ring. One end of the third rotating rod is fixedly connected to the output end of a third driving motor installed on the connecting frame. Two driving wheels are fixedly connected to the rod body of the third rotating rod. A second roller is provided on the upper end surface of the pressing plate.

[0012] Further, an annular groove is formed on the circumferential side wall of the driving wheel. The second roller rolls in the annular groove. A groove is formed in the annular groove. A spring is connected between the hanging ring and the pressing plate.

[0013] Further, when the second roller is located outside the groove and inside the annular groove, the lower end surface of the pressing plate is just flush with the lowest point of the pressing roller.

[0014] Further, a connecting ring is fixedly connected to the front end of the frame.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] ①In the present utility model, after pulling out the insertion rods on both sides, the adjusting plate can be pushed to slide. When it slides to a suitable position, the insertion rods are passed through the insertion holes at the suitable position and inserted into the end of the adjusting plate, so that the position of the adjusting plate can be fixed, and then the pushing plate can be fixed. The operation is simple, and the paving thickness can be adjusted according to the paving requirements.

[0017] ②In the present utility model, under the output of the third driving motor, the third rotating rod and the driving wheel rotate, so that the second roller rolls out of the groove, thereby making the pressing plate contact and flatten the asphalt mixture. At the same time, the tension spring is stretched. During the process of the second roller rolling into the groove again, the pulling force of the spring restoring deformation makes the pressing plate move upward. When the second roller rolls into the groove, the pressing plate is at the highest point. The second roller repeats rolling into and out of the groove, which can make the pressing plate pat and flatten the asphalt mixture, and cooperate with the first flattening mechanism to improve the flattening efficiency. Description of the Drawings

[0018] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0019] Figure 1 is a schematic diagram of the overall structure of an asphalt mixture paving device Figure 1 ;

[0020] Figure 2 is a schematic diagram of the overall structure of an asphalt mixture paving device Figure 2 ;

[0021] Figure 3 is the internal structure diagram of the feeding box;

[0022] Figure 4 is the schematic diagram of the second flattening mechanism.

[0023] In the figure: 1, frame; 2, first roller; 3, connecting ring; 4, feeding box; 5, leveling mechanism; 51, second rotating rod; 52, pushing plate; 6, first flattening mechanism; 61, vertical plate; 62, pressing roller; 7, second flattening mechanism; 71, connecting frame; 72, positioning rod; 73, pressing plate; 74, lifting ring; 75, third rotating rod; 76, third driving motor; 77, driving wheel; 771, ring groove; 772, groove; 78, second roller; 79, spring; 8, adjusting mechanism; 81, adjusting plate; 82, first chute; 83, connecting rod; 84, insertion hole; 85, insertion rod; 9, feed inlet; 10, first rotating rod; 11, first driving motor; 12, spiral blade; 13, feed pipe; 14, cross plate; 15, second driving motor; 16, threaded rod; 17, moving plate; 18, second chute. Detailed Embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model. Specific embodiments:

[0026] As Figures 1-4 shown, an asphalt mixture paving device includes a frame 1. A first roller 2 for moving is installed on the front side of the frame 1 through legs. A connecting ring 3 is fixedly connected to the front end of the frame 1. The connecting ring 3 is used to be connected to an asphalt mixture tanker through a towing rope, so that the tanker drives the paving device to move. The frame 1 is provided with a feeding box 4, a leveling mechanism 5, a first flattening mechanism 6, and a second flattening mechanism 7 from front to back. The leveling mechanism 5 is used to preliminarily level the asphalt mixture discharged from the feeding box 4. An adjusting mechanism 8 for adjusting the height of the leveling mechanism 5 from the ground is provided between the leveling mechanism 5 and the frame 1.

[0027] As Figures 1-4 shown, the feeding box 4 is provided with a feeding port 9. A first rotating rod 10 is rotatably connected to the inside of the feeding box 4 along the length direction. One end of the first rotating rod 10 penetrates through the feeding box 4 and is fixedly connected to the output end of a first driving motor 11 installed on one side of the feeding box 4. A spiral blade 12 is fixedly connected to the rod body of the first rotating rod 10 inside the feeding box 4. A plurality of feeding pipes 13 are arranged at equal intervals along the length direction below the feeding box 4. The asphalt mixture enters the feeding box 4 from the feeding port 9. By the output of the first driving motor 11, the first rotating rod 10 and the spiral blade 12 rotate. Driven by the spiral blade 12, the asphalt mixture is discharged from each feeding pipe 13 and falls onto the construction road surface.

[0028] As Figures 1-4As shown in the figure, the leveling mechanism 5 includes a second rotating rod 51 rotatably connected to the frame 1. A push plate 52 is fixedly connected to the rod body of the second rotating rod 51. The angle of the push plate 52 can be adjusted through the adjusting mechanism 8, and thus the height of the free end of the push plate 52 from the ground can be adjusted. The adjusting mechanism 8 includes an adjusting plate 81 slidable at both ends on the frame 1. First sliding grooves 82 are symmetrically formed on both sides inside the frame 1. Both ends of the adjusting plate 81 are respectively slidable in the first sliding grooves 82 on the same side. Two connecting rods 83 are connected between the adjusting plate 81 and the push plate 52. One end of the connecting rod 83 is hinged to the adjusting plate 81, and the other end is hinged to the push plate 52. By sliding the adjusting plate 81, the height of the free end of the push plate 52 from the ground can be adjusted under the connection of the connecting rods 83. A plurality of jacks 84 are equidistantly formed on the frame 1. The jacks 84 communicate with the first sliding grooves 82. Plug rods 85 are inserted into the jacks 84. The lower ends of the plug rods 85 are inserted into the ends of the adjusting plate 81. After pulling out the plug rods 85 on both sides, the adjusting plate 81 can be pushed to slide. When it slides to a suitable position and the plug rods 85 penetrate through the jacks 84 at the appropriate positions and are inserted into the ends of the adjusting plate 81, the position of the adjusting plate 81 can be fixed, and thus the push plate 52 can be fixed. The operation is simple, and the paving thickness can be adjusted according to the paving requirements.

[0029] As Figures 1-4 shown in the figure, a cross plate 14 is fixedly connected to the upper rear end surface of the frame 1. A second driving motor 15 is installed on the cross plate 14. The second driving motor 15 is a servo motor. The output end of the second driving motor 15 movably penetrates through the cross plate 14 and is fixedly connected to a threaded rod 16. A moving plate 17 also slides inside the frame 1. Second sliding grooves 18 are symmetrically formed on both sides inside the frame 1. Both ends of the moving plate 17 are respectively slidable in the second sliding grooves 18 on the same side. The threaded rod 16 penetrates through and is threadedly connected to the moving plate 17. The lower end surface of the moving plate 17 is successively provided with a first flattening mechanism 6 and a second flattening mechanism 7 from front to back. Through the output of the second driving motor 15, the threaded rod 16 rotates. Under the limitation of the second sliding grooves 18, the moving plate 17 can move up and down, and thus the heights of the first flattening mechanism 6 and the second flattening mechanism 7 can be changed, so as to adjust the paving thickness according to the paving requirements.

[0030] As Figures 1-4 shown in the figure, the first flattening mechanism 6 includes two vertical plates 61 symmetrically and fixedly connected to the lower end surface of the moving plate 17. A pressing roller 62 is rotatably connected between the two vertical plates 61. The asphalt mixture paved on the road surface is preliminarily leveled by the push plate 52 and then flattened by the rolling of the pressing roller 62.

[0031] As Figures 1-4As shown in the figure, the second flattening mechanism 7 includes a connecting frame 71 fixedly connected to the lower end surface of the moving plate 17. A plurality of positioning rods 72 penetrate and slide through the connecting frame 71. The lower ends of the positioning rods 72 are fixedly connected with a pressing plate 73. Two lifting rings 74 are fixedly connected to the lower end surface of the connecting frame 71. A third rotating rod 75 is rotatably connected inside the lifting rings 74. One end of the third rotating rod 75 is fixedly connected to the output end of a third driving motor 76 installed on one side of the connecting frame 71. Two driving wheels 77 are fixedly connected to the rod body of the third rotating rod 75. Second rollers 78 are arranged on the upper end surface of the pressing plate 73 below the driving wheels 77. A ring groove 771 is formed on the circumferential side wall of the driving wheel 77. The second rollers 78 can just roll inside the ring groove 771. A groove 772 is formed inside the ring groove 771. A spring 79 is connected between the lifting ring 74 and the pressing plate 73. When the driving wheel 77 rotates and the second rollers 78 are located inside the groove 772, the spring 79 is in a normal state. Under the output of the third driving motor 76, the third rotating rod 75 and the driving wheels 77 rotate, causing the second rollers 78 to roll out of the groove 772, so that the pressing plate 73 contacts and flattens the asphalt mixture, while stretching the spring 79. During the process of the second rollers 78 rolling into the groove 772 again, the pulling force of the spring 79 during the recovery of deformation causes the pressing plate 73 to move upward. When the second rollers 78 roll into the groove 772, the pressing plate 73 is at the highest point. The second rollers 78 repeatedly roll into and out of the groove 772, enabling the pressing plate 73 to pat and flatten the asphalt mixture, and cooperating with the first flattening mechanism 6 to improve the flattening efficiency.

[0032] As Figures 1-4 shown, when the second rollers 78 are located outside the groove 772 and inside the ring groove 771, the lower end surface of the pressing plate 73 is just flush with the lowest point of the pressing roller 62.

[0033] The first driving motor 11, the second driving motor 15 and the third driving motor 76 are all electrically connected to an external power supply and are electrically connected to a control unit (not shown in the figure).

[0034] The working principle of an asphalt mixture paving device in this embodiment is as follows: During use, the device is connected to an asphalt mixture tank truck through a connecting ring 3 and a towing rope, and the tank truck drives the paving device to move. The asphalt mixture enters the feeding box 4 from the feeding port 9. Driven by the spiral blades 12, the asphalt mixture is discharged from each feeding pipe 13 and falls onto the construction road surface. By pushing the adjusting plate 81 to slide, the position of the adjusting plate 81 can be adjusted, thereby changing the height of the free end of the pushing plate 52, and thus adjusting the paving thickness according to the paving requirements. The pushing plate 52 initially levels the asphalt mixture. The asphalt mixture is flattened by the pressing roller 62 in the first flattening mechanism 6. By repeatedly rolling the second rollers 78 into and out of the groove 772, the pressing plate 73 can pat and flatten the asphalt mixture, and cooperate with the first flattening mechanism 6 to improve the flattening efficiency.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An asphalt mixture paving equipment, characterized in that: The invention comprises a frame (1), a first roller (2) is installed on the front side of the frame (1), a material unloading box (4) and a push-flattening mechanism (5) are arranged on the frame (1) from front to back, an adjusting mechanism (8) for adjusting the height of the push-flattening mechanism (5) from the ground is arranged between the push-flattening mechanism (5) and the frame (1), second slide grooves (18) are symmetrically opened on both sides of the frame (1), a transverse plate (14) is fixedly connected to the frame (1), a second drive motor (15) is installed on the transverse plate (14), an output end of the second drive motor (15) movably passes through the transverse plate (14) and is fixedly connected to a threaded rod (16), a movable plate (17) is slidably provided in the two second slide grooves (18), the threaded rod (16) passes through and is threadedly connected to the movable plate (17), and a first flattening mechanism (6) and a second flattening mechanism (7) are arranged on the lower end surface of the movable plate (17).

2. The asphalt mixture paving equipment according to claim 1, characterized in that: The material discharge box (4) is provided with a feed port (9), and a first rotating rod (10) is rotatably connected inside the material discharge box (4). One end of the first rotating rod (10) passes through the material discharge box (4) and is fixedly connected to the output end of a first driving motor (11) installed on one side of the material discharge box (4). A spiral blade (12) is fixedly connected to the first rotating rod (10), and a material discharge pipe (13) is provided below the material discharge box (4).

3. The asphalt mixture paving equipment according to claim 1, characterized in that: The push-flattening mechanism (5) comprises a second rotating rod (51) rotatably connected to the frame (1), and a push plate (52) is fixedly connected to the second rotating rod (51).

4. The asphalt mixture paving equipment according to claim 3, characterized in that: The adjusting mechanism (8) comprises an adjusting plate (81) on a sliding frame (1) at both ends, first sliding grooves (82) are symmetrically opened on both sides of the interior of the frame (1), and the two ends of the adjusting plate (81) slide in the first sliding grooves (82) on the same side respectively, and a connecting rod (83) is hinged between the adjusting plate (81) and the pushing plate (52).

5. The asphalt mixture paving equipment according to claim 4, characterized in that: The frame (1) is provided with a plurality of insertion holes (84) at equal intervals, the insertion holes (84) are connected to the first slide groove (82), an insertion rod (85) is inserted into the insertion hole (84), and the lower end of the insertion rod (85) is inserted into the end of the adjustment plate (81).

6. The asphalt mixture paving equipment according to claim 1, characterized in that: The first flattening mechanism (6) comprises two vertical plates (61) symmetrically fixed to the lower end surface of the movable plate (17), and a pressing roller (62) is rotatably connected between the two vertical plates (61).

7. The asphalt mixture paving equipment according to claim 6, characterized in that: The second flattening mechanism (7) comprises a connecting frame (71) fixedly connected to the lower end surface of the movable plate (17), a plurality of positioning rods (72) passing through and sliding on the connecting frame (71), a pressing plate (73) being fixedly connected to the lower end of the positioning rod (72), a hanging ring (74) being fixedly connected to the lower end surface of the connecting frame (71), a third rotating rod (75) being rotatably connected inside the hanging ring (74), one end of the third rotating rod (75) being fixedly connected to the output end of a third driving motor (76) mounted on the connecting frame (71), two driving wheels (77) being fixedly connected to the rod body of the third rotating rod (75), and a second roller (78) being arranged on the upper end surface of the pressing plate (73).

8. The asphalt mixture paving equipment according to claim 7, characterized in that: The peripheral side wall of the driving wheel (77) is provided with an annular groove (771), the second roller (78) rolls in the annular groove (771), a groove (772) is provided in the annular groove (771), and a spring (79) is connected between the hanging ring (74) and the pressure plate (73).

9. The asphalt mixture paving equipment according to claim 8, characterized in that: When the second roller (78) is located outside the groove (772) and inside the annular groove (771), the lower end surface of the pressure plate (73) is just flush with the lowest point of the pressure roller (62).

10. The asphalt mixture paving equipment according to claim 1, characterized in that: A connecting ring (3) is fixedly connected to the front end of the frame (1).

Images