Asphalt concrete paving device

Abstract

The invention relates to the technical field of asphalt paving, and discloses an asphalt concrete paving device which comprises a carrier plate, and a storage box with a discharge pipe at the bottom is arranged on the carrier plate; the material distributing rod is vertically arranged on the side edge of the discharging pipe at the bottom of the carrier plate; the side edges of the two first scrapers are connected to the face, away from the discharging pipe, of the distributing rod, and mounting grooves are formed in the two sides, perpendicular to the carrying plate, of the two first scrapers. Each first feeding piece comprises two rotating shafts and an annular conveying belt, the two rotating shafts are longitudinally and rotationally connected into the two mounting grooves correspondingly, and the two rotating shafts are sleeved with the annular conveying belt; the two U-shaped scraping plates are arranged on the faces, away from the distributing rod, of the two first scraping plates correspondingly. The annular conveying belt penetrates through the U-shaped scraping plate; according to the paving device, adaptive adjustment can be rapidly conducted on the scraper blade according to the actual situation of the area to be paved, the surface flatness of the scraper blade is guaranteed all the time in the paving process, the situation that the road surface is concave and convex due to the fact that the scraper blade is not flat is effectively avoided, and the forming quality of the road surface is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of asphalt paving, and in particular to an asphalt concrete paving device. Background Art

[0002] Asphalt concrete road construction is a common road paving technology that uses asphalt as a binder to mix aggregates of different particle sizes to form a strong and durable pavement material.

[0003] During asphalt concrete road construction, due to the large turning radius of large asphalt paving equipment, construction at some corners, bridge decks or narrow roads is often impossible due to limited working areas. Therefore, manual paving is often used when constructing these sections. However, manual paving has high labor costs and is slow.

[0004] In response to the above problems, a small asphalt concrete paving device has emerged in the prior art. This small asphalt concrete paving device is equipped with a storage box with a feeding pipe, a scraper for leveling the asphalt concrete, and a pressure roller for compacting the asphalt concrete. When paving, the asphalt concrete material can be leveled by the scraper immediately after being spread as the device moves forward, and then the road surface is compacted by the pressure roller. Although this small paving device has the advantages of low construction cost and high paving speed compared with traditional manual labor, the scraper is prone to stick to the asphalt concrete during the process of leveling the asphalt concrete. This part of the adhered asphalt concrete will change the flatness of the scraper surface, thereby causing the road surface to be uneven and the molding quality to be poor during the process of leveling the asphalt concrete. Summary of the invention

[0005] The present invention proposes an asphalt concrete paving device to solve the deficiencies in the above-mentioned prior art. When in use, the asphalt concrete paving device can effectively avoid the occurrence of uneven road surface due to uneven scraper, thereby ensuring the molding quality of the road surface.

[0006] The technical solution of the present invention is: an asphalt concrete paving device, comprising a carrier plate, a material storage box is provided on the carrier plate, a discharge pipe passing through the carrier plate is provided at the bottom of the material storage box, and the paving device also includes:

[0007] The material distribution rod is a triangular prism, and the material distribution rod is vertically arranged on the side of the discharge pipe at the bottom of the carrier plate, and one edge of the material distribution rod faces the discharge pipe;

[0008] Two first scrapers, the sides of which are connected to the side of the material distribution rod away from the discharge pipe, the two first scrapers are arranged in an eight-shaped shape, and the two first scrapers are provided with mounting grooves on both sides of the vertical carrier plate;

[0009] Two first feeding members are respectively arranged on the two first scrapers, each of the first feeding members comprises two rotating shafts and an annular conveyor belt, the two rotating shafts are respectively connected to the two mounting grooves for longitudinal rotation, and the annular conveyor belt is sleeved on the two rotating shafts;

[0010] Two U-shaped scraper plates are respectively arranged on one side of the two first scrapers away from the material dividing rods; the annular conveyor belt passes through the U-shaped scraper plates, and the annular conveyor belt is in contact with the U-shaped scraper plates.

[0011] In at least one embodiment of the present invention, a U-shaped scraper plate is provided on one side of the two first scrapers away from the dividing rod, and the annular conveyor belt passes through the U-shaped scraper plate.

[0012] In at least one embodiment of the present invention, a plurality of balls are embedded on the contact surfaces between the two first scrapers and the endless conveyor belt, and the diameters of the two rotating shafts are greater than the widths of the first scrapers.

[0013] In at least one embodiment of the present invention, an adjusting member is provided at the bottom of the carrier plate, the two first scrapers are hinged at a side of the dividing rod away from the discharge pipe, and the two first scrapers are provided with a mounting block on a side away from the dividing rod, and the adjusting member comprises: two connecting blocks, a screw rod and a driving motor, the two connecting blocks are rotatably connected to the two mounting blocks respectively, the screw rod is rotatably connected to the bottom of the carrier plate, the left and right threads at both ends of the screw rod are opposite, the two connecting blocks are respectively connected to the two ends of the screw rod, the two mounting blocks are respectively hinged to the two connecting blocks, and the driving motor is connected to the screw rod.

[0014] In at least one embodiment of the present invention, a mounting rod is vertically provided on one side of the two first scrapers at the bottom of the carrier plate away from the dividing rod, and two second scrapers are hinged on the side wall of the mounting rod, the bottoms of the two second scrapers are lower than the bottoms of the two first scrapers, the opening angle of the two second scrapers is greater than the opening angle of the two first scrapers, the two second scrapers are connected to an adjusting member, the two second scrapers are provided with a second feeding member, and the adjusting member is used to adjust the opening angle of the two second scrapers.

[0015] In at least one embodiment of the present invention, the top ends of the two second scrapers are each provided with a strip groove, and the bottom ends of the two connecting blocks are each provided with a connecting column extending into the strip groove.

[0016] In at least one embodiment of the present invention, a rotating shaft is vertically provided between the bottom discharge pipe of the carrier plate and the material distribution rod, the rotating shaft is rotatably connected to the carrier plate, and rake teeth are provided on the rotating shaft.

[0017] In at least one embodiment of the present invention, the bottom end of the discharge pipe is closed, a discharge port is provided on the side wall of the discharge pipe near the bottom end, a main shaft is rotatably connected inside the discharge pipe, a spiral conveying blade is provided on the main shaft inside the discharge pipe, the top end of the main shaft passes through a storage box, and a driving member is provided at the passing end of the main shaft.

[0018] In at least one embodiment of the present invention, a stirring shaft is horizontally rotatably connected in the material storage box, a plurality of stirring rods are provided on the stirring shaft, the stirring shaft passes through the material storage box, the protruding end of the stirring shaft is connected to the main shaft through a gear mechanism, the bottom end of the main shaft passes through a discharge pipe, and the protruding end of the main shaft is connected to the rotating shaft through a chain mechanism.

[0019] In at least one embodiment of the present invention, a pressure roller is further provided at the bottom of the carrier plate. The pressure roller is located on the side of the two second scrapers away from the first scraper, and the width of the pressure roller is greater than the maximum open width of the two first scrapers and the two second scrapers.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention provides a discharge pipe for spreading asphalt concrete, a dividing rod for dividing asphalt concrete, two first scrapers for leveling asphalt concrete, and a first feeding member for conveying asphalt concrete and maintaining the flatness of the scrapers on a material storage box. When the paving device is in use, the asphalt concrete material is spread in the middle of the area to be paved through the discharge pipe. During the forward movement of the device, the dividing rod divides the asphalt concrete material into two parts. Subsequently, the asphalt concrete material contacts the annular conveyor belt in the first conveying member, and the asphalt concrete material is guided to both sides under the action of the first scraper. The annular conveyor belt rotates due to the friction of the asphalt concrete, and then the asphalt concrete particles adhering to the annular conveyor belt can be scraped off in time by a U-shaped scraper frame provided on the back of the first scraper. The asphalt concrete paving utilizes the material properties of asphalt concrete, and the annular conveyor belt and the U-shaped scraper frame matched therewith can always maintain the surface flatness of the contact surface between the asphalt concrete and the first scraper, thereby ensuring that the asphalt concrete material is evenly scraped flat by the first scraper, so as to improve the molding quality of the asphalt concrete pavement.

[0022] 2. The present invention is provided with a plurality of ball bearings on the contact surface between the first scraper and the endless conveyor belt, thereby effectively eliminating the effect of the friction between the endless conveyor belt and the first scraper during the process of the first scraper leveling the concrete material, so that the asphalt concrete can push the endless conveyor belt to rotate with a smaller friction force, thereby facilitating the asphalt concrete particles adhering to the endless conveyor belt to be smoothly scraped off by the U-shaped scraper frame, thereby fully ensuring the flatness of the contact surface between the first scraper and the asphalt concrete, and ensuring the molding quality of the concrete pavement.

[0023] 3. The present invention sets a second scraper to cooperate with the first scraper. The two scrapers perform the work of scraping materials of different thicknesses during the process of scraping the asphalt concrete material. Each scraper is only responsible for a small amount of asphalt concrete material to avoid the asphalt concrete material from generating a large friction force due to the viscosity of the concrete material during the process of spreading and scraping the asphalt concrete material, so as to ensure that the material can be scraped more evenly and quickly, thereby ensuring the molding quality of the asphalt concrete material pavement.

[0024] 4. The present invention provides an adjusting member for adjusting the opening angle of the two first scrapers and the two second scrapers, so that the device can adjust the opening angle of the first scraper and the second scraper according to the actual situation of the road to be paved, so that the device can adapt to paved roads of different sizes and shapes, thereby improving the adaptability of the device, enabling the device to quickly complete the paving work of corners, bridge decks or narrow roads, and ensure the molding quality of the asphalt concrete material road surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the main cross-sectional structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the main partial structure of the present invention;

[0028] Figure 4 For the present invention Figure 3 Detailed structural diagram at A;

[0029] Figure 5 It is a bottom view structural schematic diagram of the present invention;

[0030] Figure 6 It is a schematic diagram of a partial structure of the present invention when viewed from above;

[0031] Figure 7 For the present invention Figure 3 Detailed structural diagram of location B.

[0032] Description of reference numerals:

[0033] 1. Carrier plate; 11. Pressing roller; 12. Hand support; 2. Storage box; 21. Discharging pipe; 3. Distributing rod; 4. First scraper; 41. Mounting groove; 42. U-shaped scraper plate; 43. Mounting block; 5. First feeding piece; 51. Rotating shaft; 52. Annular conveyor belt; 6. Adjusting piece; 61. Connecting block; 62. Screw rod; 63. Driving motor; 7. Mounting rod; 71. Second scraper; 711. Second feeding piece; 712. Strip groove; 8. Rotating shaft; 81. Rake teeth; 9. Main shaft; 91. Spiral conveying blade; 92. Driving piece; 93. Stirring rod. DETAILED DESCRIPTION

[0034] The drawings in the present invention are not drawn strictly according to the actual scale, and the specific size and quantity of each structure can be determined according to actual needs. The drawings described in the present invention are only schematic diagrams of the structures.

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The words "include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Inside", "outside", "up", "down", "far", "near", "front", "back" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] In the prior art, there is a small-sized asphalt concrete paving device. This small-sized asphalt concrete paving device is provided with a small storage box with a feeding pipe, a scraper fixed at the bottom of the device for leveling the asphalt concrete, and a roller for compacting the asphalt concrete. When this small-sized paving device is paving, the asphalt concrete material can be immediately leveled and compacted after being spread as the device moves forward. Although this small-sized paving device is faster than traditional manual paving, it can effectively avoid the problem of low road forming quality caused by poor fluidity of asphalt concrete. However, the fixed scraper cannot be adaptively adjusted when facing paving areas of different sizes, and the scraper is easy to stick to asphalt concrete, which causes the surface flatness of the scraper to change, and then the road surface becomes uneven during the leveling process, resulting in poor forming quality.

[0038] The present invention proposes an asphalt concrete paving device. When in use, the asphalt concrete paving device can quickly adaptively adjust the scraper according to the actual situation of the area to be paved, and always ensure the surface flatness of the scraper during the paving process, effectively avoiding the occurrence of bumps on the road surface due to the unevenness of the scraper, and ensuring the molding quality of the road surface.

[0039] Combination Figures 1 to 7 As shown, an asphalt concrete paving device includes a carrier plate 1, which is a rectangular plate, a storage box 2 is provided on the carrier plate 1, and a discharge pipe 21 passing through the carrier plate 1 is provided at the bottom of the storage box 2. The storage box 2 is used to hold asphalt concrete materials. The storage box 2 and the discharge pipe 21 are both provided with an insulation layer to avoid the problem of poor fluidity of the asphalt concrete material due to rapid cooling. The staff can also add a corresponding heating device to the storage box 2 according to the actual situation to fully ensure the fluidity of the asphalt concrete in the storage box 2, thereby facilitating the paving work. The asphalt concrete paving device also includes:

[0040] The dividing rod 3 is a triangular prism, and is vertically arranged on the side of the discharge pipe 21 at the bottom of the carrier plate 1, with one edge of the dividing rod 3 facing the discharge pipe 21; the dividing rod 3 is used to divide the asphalt concrete;

[0041] The sides of the two first scrapers 4 are connected to a side of the material distribution rod 3 away from the discharge pipe 21 . The two first scrapers 4 are arranged in an eight-shaped shape. Both sides of the two first scrapers 4 that are perpendicular to the carrier plate 1 are provided with mounting grooves 41 .

[0042] The two first feeding members 5 are respectively arranged on the two first scrapers 4, and each first feeding member 5 includes two rotating shafts 51 and an annular conveyor belt 52. The two rotating shafts 51 are respectively connected to the two mounting grooves 41 for longitudinal rotation, and the annular conveyor belt 52 is sleeved on the two rotating shafts 51. Specifically, the two annular conveyor belts 52 are anti-adhesion conveyor belts.

[0043] The two U-shaped scraper plates 42 are respectively arranged on the side of the two first scrapers 4 away from the dividing rod 3; the annular conveyor belt 52 passes through the U-shaped scraper plate 42, and the annular conveyor belt 52 is in contact with the U-shaped scraper plate 42; the U-shaped scraper plate 42 can scrape off the asphalt concrete material adhered to the annular conveyor belt 52 in time to ensure the smoothness of the surface of the annular conveyor belt 52, and then ensure the uniformity of the scraping of the asphalt concrete material, so as to improve the molding quality of the asphalt concrete pavement.

[0044] As an alternative embodiment, a plurality of balls are embedded on the contact surfaces between the two first scrapers 4 and the annular conveyor belt 52, and the diameters of the two rotating shafts 51 are both larger than the width of the first scrapers 4. The arrangement of the balls and the limitation of the size of the rotating shafts 51 enable the annular conveyor belt 52 to rotate more smoothly under the action of the friction force of the asphalt concrete during use of the device, thereby facilitating the annular conveyor belt 52 to smoothly pass through the U-shaped scraper plate 42 to remove the asphalt concrete material adhering thereto, so as to ensure the surface flatness of the scraper and further ensure the molding quality of the asphalt concrete road.

[0045] As an alternative embodiment, an adjusting member 6 is provided at the bottom of the carrier plate 1, and the two first scrapers 4 are hinged on the side of the material distribution rod 3 away from the discharge pipe 21, and the two first scrapers 4 are provided with a mounting block 43 on the side away from the material distribution rod 3. The adjusting member 6 includes: two connecting blocks 61, a screw rod 62 and a drive motor 63, the two connecting blocks 61 are respectively rotatably connected to the two mounting blocks 43, the screw rod 62 is rotatably connected to the bottom of the carrier plate 1 along the width direction of the carrier plate 1, and the left and right threads at both ends of the screw rod 62 are opposite, and the two connecting blocks 61 are respectively connected to the two opposite ends of the screw rod 62. On the thread, the two connecting blocks 61 are slidably connected to the bottom of the carrier plate 1, the two mounting blocks 43 are respectively hinged to the two connecting blocks 61, and the driving motor 63 is connected to the screw rod 62; when the driving motor 63 controls the screw rod 62 to rotate forward and reverse, the two mounting blocks 43 move toward the opposite or opposite side to pull the two first scrapers 4 to adjust the opening angle, so that the two first scrapers 4 can be used for paving in different sizes, so as to quickly complete the road paving work smaller than the area, and fully ensure the molding quality of the asphalt concrete road.

[0046] As an alternative embodiment, a mounting rod 7 is vertically provided on one side of the two first scrapers 4 at the bottom of the carrier plate 1 away from the dividing rod 3. The mounting rod 7 is a triangular prism. Two second scrapers 71 are hinged on the side wall of the mounting rod 7. The bottoms of the two second scrapers 71 are lower than the bottoms of the two first scrapers 4. The opening angles of the two second scrapers 71 are greater than the opening angles of the two first scrapers 4. The two second scrapers 71 are connected to the adjusting member 6. A second feeding member 711 is provided on the two second scrapers 71. Specifically, the second feeding member 711 has the same structure as the first feeding member 5. The adjusting member 6 is used to adjust the opening angle of the two second scrapers 71. The two groups of scrapers perform the work of leveling materials of different thicknesses in the process of leveling the asphalt concrete material. Each group of scrapers is only responsible for a small amount of asphalt concrete material to avoid the asphalt concrete material from generating a large friction due to the viscosity of the concrete material during the leveling process, so as to ensure that the material can be leveled more evenly and quickly, thereby ensuring the molding quality of the asphalt concrete material pavement.

[0047] As an alternative embodiment, the top ends of the two second scrapers 71 are provided with a strip groove 712, and the bottom ends of the two connecting blocks 61 are provided with a connecting column extending into the strip groove 712; during the rotation of the driving motor 63, the connecting block 61 pulls the first scraper 4 to deflect through the mounting block 43, and at the same time, during the movement of the connecting block 61, the connecting column moves in the strip groove 712, and the second scraper 71 is pulled to deflect through the action of the connecting column and the side wall of the strip groove 712, thereby realizing the function of simultaneously adjusting the opening angles of the two first scrapers 4 and the two second scrapers 71.

[0048] As an alternative embodiment, as described in the specification Figure 2 and Figure 3 As shown, a rotating shaft 8 is vertically provided between the bottom discharge pipe 21 of the carrier plate 1 and the dividing rod 3, the rotating shaft 8 is rotatably connected to the carrier plate 1, a rectangular block is provided at the bottom end of the carrier plate 1, the rotating shaft 8 is rotatably connected to the rectangular block, and rake teeth 81 are provided on the rotating shaft 8; the rake teeth 81 can break up the asphalt concrete material discharged from the discharge pipe 21, thereby facilitating the first scraper 4 and the second scraper 71 to carry out the dividing and leveling work, thereby improving the paving effect, making the asphalt concrete more compact, and improving the molding quality of the asphalt concrete.

[0049] As an alternative embodiment, as described in the specification Figure 3As shown, the bottom end of the discharge pipe 21 is closed, and a discharge port is provided on the side wall of the discharge pipe 21 near the bottom end. A guide pipe extends from the discharge port, and the discharge port faces the front side of the carrier plate 1. A main shaft 9 is rotatably connected in the discharge pipe 21, and a spiral conveying blade 91 is provided on the main shaft 9 in the discharge pipe 21. The spiral conveying blade 91 is used for rotating and conveying asphalt concrete materials. The top end of the main shaft 9 passes through the storage box 2, and a driving member 92 is provided at the passing end of the main shaft 9. The driving member 92 is a motor, and the motor is connected to a forward and reverse controller; the spiral conveying blade 91 not only ensures the stable output of the asphalt concrete material, but also acts as a material valve, and the spiral conveying blade 91 does not output materials during the reversal of the driving member 92.

[0050] As an alternative embodiment, as shown in the attached specification Figure 2 As shown, a stirring shaft is horizontally rotatably connected in the storage box 2, and a plurality of stirring rods 93 are arranged on the stirring shaft. The protruding end of the stirring shaft is connected to the main shaft 9 through a gear mechanism. Specifically, the gear mechanism includes a first bevel gear and a second bevel gear respectively arranged on the main shaft 9 and the protruding end of the stirring shaft, and the first bevel gear and the second bevel gear are meshed with each other. The setting of the stirring rod 93 is to prevent the asphalt concrete from having poor fluidity when it is left standing in the storage box 2, and the stirring shaft passes through the storage box 2; the bottom end of the main shaft 9 passes through the discharge pipe 21, and the protruding end of the main shaft 9 is connected to the rotating shaft 8 through a chain mechanism. Specifically, the chain structure includes a first sprocket and a second sprocket respectively arranged on the protruding end of the main shaft 9 and the rotating shaft 8, and the first sprocket and the second sprocket are connected through a chain; the main shaft 9 rotates to drive the rotating shaft 8 to rotate, so that the rake teeth 81 disperse and spread the material pile, which is convenient for the two groups of scrapers to level the asphalt concrete material.

[0051] As an alternative embodiment, a pressure roller 11 is also provided at the bottom of the carrier plate 1. The pressure roller 11 is rotatably connected to the bottom of the carrier plate 1, and the pressure roller 11 is located on the side of the two second scrapers 71 away from the first scraper 4; the pressure roller 11 is used to compact the asphalt concrete after the asphalt concrete is completely scraped flat. Specifically, the width of the pressure roller 11 is greater than the maximum width of the second scraper 71 to ensure that the materials separated and scraped flat by the first scraper 4 and the second scraper 71 can be compacted by the pressure roller 11.

[0052] As an alternative embodiment, the carrier plate 1 is a vehicle body plate, and walking wheels are provided at the bottom of the carrier plate 1. The carrier plate 1 is also provided with a vehicle body travel drive mechanism. Specifically, the vehicle body travel drive mechanism is, for example, an engine or motor drive in the prior art; a handrail 12 is provided on the carrier plate 1, and the drive member 92, the drive motor 63 and the control components of the vehicle body travel drive mechanism are all arranged on the handrail 12, so that the user can control the device during the operation of the device.

[0053] The working principle and usage of this embodiment:

[0054] The present invention provides an asphalt concrete paving device. When using the asphalt concrete paving device to fill and repair damaged areas of a road or to carry out construction in small areas and corner areas, first, a proper amount of asphalt concrete material is added to a storage box 2, and the driving member 92 is started to reverse, so that the driving member 92 drives the main shaft 9 to rotate, and then the main shaft 9 drives the spiral conveying blade 91 to reverse and drives the stirring shaft to rotate through a gear mechanism. On the basis of ensuring that the asphalt concrete material is not discharged from the storage box 2, the stirring shaft drives multiple stirring rods 93 to stir the asphalt concrete material, so as to prevent the asphalt concrete from having poor fluidity when it is left standing in the storage box 2.

[0055] Then, move the mobile device to the position where construction is required, align the discharge pipe to the middle position of the starting point of the construction area, and according to the size of the construction area, drive the screw 62 to rotate through the driving motor 63, so that the screw 62 drives the two connecting blocks 61 to move toward the opposite or opposite side, and then the two connecting blocks 61 drive the two first scrapers 4 and the two second scrapers 71 to move, and adjust the two first scrapers 4 and the two second scrapers 71 to a width suitable for the construction area.

[0056] During the process of paving asphalt concrete materials, the driving member 92 is started to rotate forward, and the driving member 92 drives the spiral conveying blade 91 to rotate forward through the main shaft 9, and then the asphalt concrete material in the storage box 2 is transported to the paved ground through the spiral conveying blade 91. While the spiral conveying blade 91 rotates, the main shaft 9 drives the rotating shaft 8 to rotate through the sprocket mechanism, so that the rotating shaft 8 drives the rake teeth 81 to rotate, and then the device is controlled to move forward. During the forward movement of the device, the rake teeth 81 first contact with the asphalt concrete material on the paved ground and scatter the asphalt concrete material on the ground, and then the dividing rod 3 contacts with the material and separates a layer of material, and guides the asphalt concrete material to the two first scrapers 4 respectively, and then the two first scrapers 4 The annular conveyor belt 52 is in contact with the annular conveyor belt 52. During the process in which the first scraper 4 guides the asphalt concrete material to both sides and scrapes it flat, since the asphalt concrete material does not directly contact the first scraper 4, in the process in which the asphalt concrete material moves to both sides under the action of the first scraper 4, the annular conveyor belt 52 is rotated around the rotating shaft 51 under the action of the friction force of the asphalt concrete, so that the asphalt concrete material will not generate an action force with the first scraper 4 due to viscosity, and the asphalt concrete material can be smoothly guided to both sides and scraped flat by the two first scrapers 4. At the same time, the asphalt concrete material adhering to the annular conveyor belt 52 can be scraped off by the U-shaped scraper plate 42 during the rotation process, so as to ensure the flatness of the first scraper 4 at all times to ensure the paving quality.

[0057] Since the two first scrapers 4 and the two second scrapers 71 have different heights from the ground, the two second scrapers 71 will contact the second layer of asphalt concrete material on the paved ground as the device continues to move forward. The second scrapers 71 work in the same way as the first scrapers 4 during the device's advancement, and the asphalt concrete material on the lower side is scraped and leveled separately. The two first scrapers 4 and the two second scrapers 71 only scrape a small amount of material at a time, so that the device has a small travel resistance during the leveling process, and the asphalt concrete material can be scraped and leveled more stably. As the device continues to move forward, the pressure roller 11 set at the rear of the device compacts the asphalt concrete after leveling, thereby completing the paving work on the damaged road or in small areas and corners.

[0058] The above embodiments are only specific implementation methods of the patent of the present invention, which are used to illustrate the technical solution of the patent of the present invention rather than to limit it. The protection scope of the patent of the present invention is not limited thereto. Although the patent of the present invention is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that any technician familiar with the technical field can still modify the technical solution recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution implemented by the patent of the present invention, and should be covered within the protection scope of the present invention.

Claims

1. An asphalt concrete paving device, comprising a carrier plate (1), a material storage box (2) being provided on the carrier plate (1), a discharge pipe (21) passing through the carrier plate (1) being provided at the bottom of the material storage box (2), characterized in that: The paving device also includes: The material distribution rod (3) is a triangular prism, and the material distribution rod (3) is vertically arranged at the bottom of the carrier plate (1) and located on the side of the discharge pipe (21), and one edge of the material distribution rod (3) faces the discharge pipe (21); Two first scrapers (4), the sides of which are connected to a side of the material distribution rod (3) away from the material discharge pipe (21), the two first scrapers (4) are arranged in an eight-shaped shape, and mounting grooves (41) are provided on both sides of the two first scrapers (4) perpendicular to the carrier plate (1); Two first feeding members (5) are respectively arranged on the two first scrapers (4), each of the first feeding members (5) comprises two rotating shafts (51) and an annular conveyor belt (52), the two rotating shafts (51) are respectively connected to the two mounting grooves (41) for longitudinal rotation, and the annular conveyor belt (52) is sleeved on the two rotating shafts (51); Two U-shaped scraper plates (42) are respectively arranged on one side of the two first scraper plates (4) away from the material distribution rod (3); the annular conveyor belt (52) passes through the U-shaped scraper plates (42), and the annular conveyor belt (52) is in contact with the U-shaped scraper plates (42).

2. An asphalt concrete paving device as claimed in claim 1, characterized in that: A plurality of balls are embedded on the contact surfaces between the two first scrapers (4) and the annular conveyor belt (52), and the diameters of the two rotating shafts (51) are greater than the width of the first scrapers (4).

3. An asphalt concrete paving device as claimed in claim 1, characterized in that: An adjusting member (6) is provided at the bottom of the carrier plate (1), and the two first scrapers (4) are hinged on the side of the material distribution rod (3) away from the discharge pipe (21). The two first scrapers (4) are provided with a mounting block (43) on the side away from the material distribution rod (3). The adjusting member (6) comprises: two connecting blocks (61), a screw rod (62) and a driving motor (63). The two connecting blocks (61) are respectively rotatably connected to the two mounting blocks (43), and the screw rod (62) is rotatably connected to the bottom of the carrier plate (1). The left and right threads at both ends of the screw rod (62) are opposite. The two connecting blocks (61) are respectively connected to the two ends of the screw rod (62), and the two mounting blocks (43) are respectively hinged to the two connecting blocks (61). The driving motor (63) is connected to the screw rod (62).

4. An asphalt concrete paving device as claimed in claim 3, characterized in that: A mounting rod (7) is vertically provided on one side of the two first scrapers (4) at the bottom of the carrier plate (1) away from the material distribution rod (3); two second scrapers (71) are hingedly connected to the side wall of the mounting rod (7); the bottoms of the two second scrapers (71) are lower than the bottoms of the two first scrapers (4); second feeding members (711) are provided on the two second scrapers (71); and the two second scrapers (71) are connected to the adjusting member (6).

5. An asphalt concrete paving device as claimed in claim 4, characterized in that: The top ends of the two second scrapers (71) are each provided with a strip groove (712), and the bottom ends of the two connection blocks (61) are each provided with a connection column extending into the strip groove (712).

6. An asphalt concrete paving device as claimed in claim 1, characterized in that: A rotating shaft (8) is vertically arranged between the bottom discharge pipe (21) of the carrier plate (1) and the material distribution rod (3), the rotating shaft (8) is rotatably connected to the carrier plate (1), and rake teeth (81) are arranged on the rotating shaft (8).

7. An asphalt concrete paving device as claimed in claim 6, characterized in that: The bottom end of the discharge pipe (21) is closed, and a discharge port is provided on the side wall of the discharge pipe (21) near the bottom end. A main shaft (9) is rotatably connected inside the discharge pipe (21), and a spiral conveying blade (91) is provided on the main shaft (9) inside the discharge pipe (21).

8. An asphalt concrete paving device as claimed in claim 7, characterized in that: A stirring shaft is horizontally rotatably connected inside the material storage box (2), and a plurality of stirring rods (93) are provided on the stirring shaft. The stirring shaft passes through the material storage box (2), and the protruding end of the stirring shaft is connected to the main shaft (9) through a gear mechanism. The bottom end of the main shaft (9) passes through a discharge pipe (21), and the protruding end of the main shaft (9) is connected to the rotating shaft (8) through a chain mechanism.

9. An asphalt concrete paving device as claimed in claim 4, characterized in that: A pressure roller (11) is also provided at the bottom of the carrier plate (1), and the pressure roller (11) is located on the side of the two second scrapers (71) away from the first scraper (4), and the width of the pressure roller (11) is greater than the maximum opening width of the two first scrapers (4) and the two second scrapers (71).

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