Asphalt paver for road engineering paving

Abstract

The invention relates to the technical field of road engineering, in particular to an asphalt paver for road engineering paving, which comprises a paver main body and an output groove, turning mechanisms for dragging and steering are arranged on the bottom surfaces of shells on two sides, and opening mechanisms for controlling the output quantity of different positions are arranged on the inner side surfaces of the turning mechanisms. The inner side surface of the output groove is provided with a uniform paving mechanism for scraping and uniformly paving asphalt, the outer side surface of the uniform paving mechanism is provided with a deflection mechanism for adjusting the scraping frequency according to the turning direction, the output groove for outputting the asphalt can turn along with the paver, and the rotating direction of the opening mechanism is adjusted according to the turning direction; the gap between the opening side plates can form a trapezoid, it can be ensured that the area of areas swept over at different positions is matched with the output asphalt amount, uniform distribution of asphalt during turning laying is achieved, the problem that the asphalt is too much or too little locally is effectively avoided, and the quality and attractiveness of road laying are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of road engineering, and specifically to an asphalt paver for road engineering paving. Background Art

[0002] An asphalt paver is a key piece of equipment for road construction, mainly used for paving asphalt concrete roads. During operation, the asphalt mixture enters the paver from the hopper, is evenly distributed by the spiral distributor, and then paved into shape by the screed. This equipment can ensure the smoothness and uniform thickness of the asphalt road surface, improve construction efficiency and quality, and is widely used in road surface engineering construction such as highways and municipal roads. With the development of technology, modern asphalt pavers are also equipped with intelligent control systems, further improving the construction accuracy and convenience.

[0003] When the existing asphalt pavers are laying asphalt, since most of the outlets are rectangular, they can evenly lay asphalt well on straight roads. However, when passing through right-angle bends or U-shaped bends, since the paver needs to turn, it will rotate around a center. Since the outlet is long-strip shaped, when rotating around a point, this point must be outside the paver. In this way, the distance from each point of the outlet to the rotation center is different. Although the angular velocity is the same during rotation, the linear velocities at different positions are different, and the swept areas of different regions are also different.

[0004] The existing pavers lack the function of adjusting the asphalt distribution according to the position during turning, making it difficult to ensure the even distribution of asphalt during turning paving, which affects the quality of road paving.

[0005] In view of this, we propose an asphalt paver for road engineering paving. Summary of the Invention

[0006] The purpose of the present invention is to provide an asphalt paver for road engineering paving to solve the problem in the above-mentioned background art that the existing asphalt pavers cannot adapt to the linear velocity differences at different positions during turning, which affects the even distribution of asphalt during turning paving and the quality of road paving. To achieve the above purpose, the present invention provides the following technical solution: An asphalt paver for road engineering paving, including a paver main body and an output trough. The inner surface of the output trough is rotatably connected with a threaded transport rod. Both sides of the output trough are fixedly connected with two-side outer shells. The bottom surface of the two-side outer shells is provided with a turning mechanism. The inner surface of the turning mechanism is provided with an opening mechanism. The inner surface of the output trough is provided with an even-paving mechanism. The outer surface of the even-paving mechanism is provided with a deviation mechanism.

[0007] Preferably, the turning mechanism includes a bottom housing fixedly connected to the bottom surface of the output groove. Symmetrically distributed wheel mounting brackets are fixedly connected to both sides of the bottom housing. An L-shaped plate is rotatably connected to the inner surface of the wheel mounting bracket. A driving wheel is rotatably connected to one side surface of the L-shaped plate. A driven push rod is hinged to the other side surface of the L-shaped plate. The other end of the driven push rod is hinged to a driving T-shaped block. A bottom mounting bracket is fixedly connected to the outer surface of the bottom housing. A rotating mounting column is fixedly connected to the top surface of the bottom mounting bracket. The driven push rods are symmetrically distributed on both sides of the driving T-shaped block. The driving T-shaped block is rotatably connected to the rotating mounting column. Both the L-shaped plate and the driven push rod are slidably connected to the inner surfaces of the bottom housing and the slots on both sides of the outer housing.

[0008] Preferably, the opening mechanism includes an opening support frame. An opening side plate is rotatably connected to the top surface of the opening support frame. A top baffle is fixedly connected to the top surface of the opening side plate. Opening control arms are hinged to both ends of the opening side plate. The other end of the opening control arm is hinged to a pushing control block. An L-shaped connecting plate is fixedly connected to the outer surface of the pushing control block. A frame connecting plate is rotatably connected to the top surface of the L-shaped connecting plate. Both sides of the top baffle are arc-shaped, and the radius of the arc is the distance from the rotation center of the opening side plate to the rotation center of the opening control arm. The top baffle is slidably connected to the inner surface of the bottom housing. The number of opening control arms is four, and the number on each side of the opening side plate is two. The number of pushing control blocks is two, and the pushing control blocks are slidably connected to the inner surface of the bottom housing.

[0009] Preferably, the frame connecting plate is fixedly connected to the bottom surface of the L-shaped plate.

[0010] Preferably, the leveling mechanism includes an upper platform. An input groove is formed on the top surface of the upper platform. A connecting hole is formed on the outer surface of the upper platform. A contact convex block is fixedly connected to the inner surface of the connecting hole. A bottom limiting groove is formed on the bottom surface of the upper platform. A lower platform is slidably connected to the bottom surface of the upper platform. A connecting limiting column is fixedly connected to the top surface of the lower platform. A pushing groove is formed on the outer surface of the lower platform. An opening connecting block is fixedly connected to the outer surface of the lower platform. An opening connecting groove is formed on the outer surface of the opening side plate. The upper platform is slidably connected to the inner surface of the output groove. The number of lower platforms is two. The bottom limiting groove is slidably connected to the connecting limiting column. The opening connecting block is slidably connected to the inner surface of the opening connecting groove. The lower platform is slidably connected to the outer surfaces of the opening side plate and the top baffle.

[0011] Preferably, the deviation mechanism includes a driving motor, the output end of the driving motor is fixedly connected with a cylindrical cam, the outer surface of the cylindrical cam is slidably connected with a fixed housing, both sides of the fixed housing are fixedly connected with connecting pull rods, the inner surface of the fixed housing is slidably connected with a movable housing, a trigger spring is sleeved on the outer surface of the movable housing, the outer surface of the connecting pull rod is slidably connected with a trigger arm, a pulling groove is formed on the outer surface of the trigger arm, the top surface of the driven push rod is fixedly connected with a short connecting column, and the top surface of the other driven push rod is fixedly connected with a long connecting column; The cylindrical cam is rotatably connected with the outer surface of the output groove. There are two fixed housings. The movable housing penetrates through the fixed housing. Both ends of the trigger spring are fixedly connected with the movable housing and the fixed housing respectively. The connecting pull rod is slidably connected with the inner surface of the pulling groove. The cylindrical cam penetrates through the connecting hole and is slidably connected with the contact convex block.

[0012] Preferably, the end connecting column and the long connecting column are respectively fixedly connected with the driven push rods on both sides.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, through the joint cooperation of the turning mechanism and the opening mechanism, the rotation angle of the driving wheel closer to the inner side of the rotation center can be made larger than that of the outer driving wheel, so that the output groove for outputting asphalt can follow the turning of the paver, and according to the turning direction, the turning direction of the opening mechanism can be adjusted. The gap between the opening side plates will form a trapezoid, the gap is smaller closer to the rotation center, and the amount of asphalt output is less; the gap is larger closer to the outer side, and the amount of asphalt output is more. This way of dynamically adjusting the opening size according to the turning situation can ensure that the area swept at different positions matches the amount of asphalt output, realizing the uniform distribution of asphalt during turning paving, effectively avoiding the problem of too much or too little asphalt locally, and ensuring the quality and aesthetics of road paving.

[0014] In the present invention, through the joint cooperation of the even paving mechanism and the deviation mechanism, the upper platform and the lower platform in the even paving mechanism perform reciprocating movement driven by the cylindrical cam. During the movement, the asphalt on the inner side of the output groove and the outer surfaces of the opening side plates and the top baffle is scraped off, preventing the asphalt from being blocked due to long-term adhesion, and at the same time helping to make the asphalt more evenly distributed in the paving area.

[0015] In the present invention, through the joint cooperation of the turning mechanism and the deviation mechanism, while turning, the deviation mechanism will adjust the movement path of the even paving mechanism. On the side with less asphalt passing through, the scraping frequency is reduced; while on the side with more asphalt passing through, the scraping frequency is increased, further ensuring the uniform output of asphalt at different positions and improving the overall quality and effect of road paving. Description of the Drawings

[0016] Figure 1 It is a schematic side view of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cooperating structure of the output slot, threaded transport rod, and turning mechanism of the present invention; Figure 3 It is a schematic diagram of the cooperating structure of the output slot, side housings on both sides, and bottom housing of the present invention; Figure 4 It is a schematic diagram of the cooperating structure of the various components of the turning mechanism of the present invention; Figure 5 It is a schematic diagram of the cooperating structure of the L-shaped plate, driving wheel, and vehicle frame connecting plate of the present invention; Figure 6 It is a schematic diagram of the cooperating structure of the active T-shaped block, bottom mounting bracket, short connecting column, and long connecting column of the present invention; Figure 7 It is schematic diagram A of the bottom structure of the turning mechanism and the opening mechanism of the present invention; Figure 8 It is a schematic diagram of the top structure of the turning mechanism and the opening mechanism of the present invention; Figure 9 It is a schematic diagram of the cooperating structure of the opening side plate and the bottom housing of the present invention; Figure 10 It is a schematic diagram of the cooperating structure of the opening side plate, top baffle, and opening connecting groove of the present invention; Figure 11 It is a schematic diagram of the cooperating structure of the L-shaped plate, L-shaped connecting plate, and pushing control block of the present invention; Figure 12 It is schematic diagram B of the bottom structure of the turning mechanism and the opening mechanism of the present invention; Figure 13 It is a schematic diagram of the cooperating structure of the spreading mechanism and the top baffle of the present invention; Figure 14 It is a schematic diagram of the cooperating structure of the various components of the spreading mechanism of the present invention; Figure 15 It is a schematic diagram of the cooperating structure of the spreading mechanism and the deflecting mechanism of the present invention; Figure 16 It is a schematic diagram of the cooperating structure of the various components of the deflecting mechanism of the present invention.

[0017] In the figure: 1, paver main body; 2, output chute; 21, threaded transport rod; 22, outer shells on both sides; 3, turning mechanism; 31, bottom shell; 311, wheel mounting bracket; 32, L-shaped plate; 321, drive wheel; 33, driven push-pull rod; 34, active T-shaped block; 341, bottom mounting bracket; 342, rotating mounting column; 4, opening mechanism; 41, opening support frame; 42, opening side plate; 421, top baffle; 43, opening control arm; 431, push control block; 44, L-shaped connecting plate; 441, frame connecting plate; 5, leveling mechanism; 51, upper platform; 511, input chute; 512, connecting hole; 5121, contact bump; 513, bottom limit groove; 52, lower platform; 521, connecting limit post; 522, push groove; 523, opening connecting block; 524, opening connecting groove; 6, deviation mechanism; 61, drive motor; 62, cylindrical cam; 63, fixed outer shell; 631, connecting pull column; 64, movable outer shell; 641, trigger spring; 65, trigger arm; 651, pull groove; 66, short connecting column; 661, long connecting column. Detailed implementation mode

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical staff in the art without creative work belong to the protection scope of the present invention.

[0019] Please refer to Figures 1 to 16 , the present invention provides a technical solution: an asphalt paver for road engineering paving, including a paver main body 1 and an output chute 2. A threaded transport rod 21 is rotatably connected to the inner surface of the output chute 2. Outer shells 22 on both sides are fixedly connected to both sides of the output chute 2. A turning mechanism 3 is arranged on the bottom surface of the outer shells 22 on both sides. An opening mechanism 4 is arranged on the inner surface of the turning mechanism 3. A leveling mechanism 5 is arranged on the inner surface of the output chute 2. A deviation mechanism 6 is arranged on the outer surface of the leveling mechanism 5; The paver main body 1 outputs the asphalt to be paved to the center of the output chute 2, and continuously rotates the internal threaded transport rod 21 to disperse the asphalt to both sides.

[0020] The turning mechanism 3 includes a bottom housing 31, the bottom housing 31 is fixedly connected to the bottom surface of the output groove 2, both sides of the bottom housing 31 are fixedly connected with symmetrically distributed wheel mounting brackets 311, the inner surface of the wheel mounting bracket 311 is rotatably connected with an L-shaped plate 32, one side surface of the L-shaped plate 32 is rotatably connected with a driving wheel 321, the other side surface of the L-shaped plate 32 is hingedly connected with a driven push rod 33, the other end of the driven push rod 33 is hingedly connected with a driving T-shaped block 34, the outer surface of the bottom housing 31 is fixedly connected with a bottom mounting bracket 341, and the top surface of the bottom mounting bracket 341 is fixedly connected with a rotating mounting column 342; The driven push rods 33 are symmetrically distributed on both sides of the driving T-shaped block 34, the driving T-shaped block 34 is rotatably connected with the rotating mounting column 342, and both the L-shaped plate 32 and the driven push rod 33 are slidably connected with the inner surfaces of the bottom housing 31 and the grooves on both sides of the outer housing 22; Through the setting of the turning mechanism 3, during the use process, after the asphalt enters the output groove 2, it is output from the bottom housing 31 at the bottom and paved on the ground. Most components are installed between the output groove 2 and the bottom housing 31, and the two driving wheels 321 on both sides are dragged and turned by the paver main body 1. In the initial state of straight driving, the driving wheels 321 are parallel. When the paver main body 1 turns, the driving wheels 321 on both sides will also rotate. The L-shaped plate 32 on one of the driving wheels 321 rotates, and through the driven push rod 33, it pushes or pulls the driving T-shaped block 34 to rotate on the rotating mounting column 342, and pulls or pushes the driven push rod 33 on the other side, so that the L-shaped plate 32 on the other side also drives the driving wheel 321 to rotate. After the driving T-shaped block 34 rotates, since it rotates around the rotating mounting column 342, it will push one driven push rod 33 and pull the other driven push rod 33, making the rotation angle of the driving wheel 321 closer to the inner side of the rotation center larger than that of the outer driving wheel 321 during turning.

[0021] The opening mechanism 4 includes an opening support frame 41, the top surface of the opening support frame 41 is rotatably connected with an opening side plate 42, the top surface of the opening side plate 42 is fixedly connected with a top baffle 421, both ends of the opening side plate 42 are hingedly connected with an opening control arm 43, the other end of the opening control arm 43 is hingedly connected with a pushing control block 431, the outer surface of the pushing control block 431 is fixedly connected with an L-shaped connecting plate 44, and the top surface of the L-shaped connecting plate 44 is rotatably connected with a frame connecting plate 441; Both sides of the top baffle 421 are arc-shaped, and the radius of the arc is the distance from the rotation center of the opening side plate 42 to the rotation center of the opening control arm 43. The top baffle 421 is slidably connected with the inner surface of the bottom housing 31. The number of the opening control arms 43 is four, and the number on each side of the two opening side plates 42 is one. The number of the pushing control blocks 431 is two, and the pushing control blocks 431 are slidably connected with the inner surface of the bottom housing 31; With the arrangement of the opening mechanism 4, during use, the opening side plate 42 rotates on the opening support frame 41, and the rotation center is the center position of the opening side plate 42. In this way, the opening side plate 42 cannot move but only rotate. In the initial state, the paver main body 1 travels straight, and the opening side plates 42 are in a parallel state, and the gaps in each interval are equal. When the output trough 2 outputs asphalt through the opening mechanism 4, the passing amount of asphalt output by each part is the same. When the paver main body 1 turns, the L-shaped plates 32 on both sides will rotate on the wheel mounting frame 311 and drive the bottom frame connecting plate 441 to rotate. Since the rotation directions are the same, the two L connecting plates 44 will be pushed to the same side. When rotating, the outer side will push the control block 431 towards the direction of the opening support frame 41, that is, push inwards, and the inner side when rotating will pull the control block 431 outwards. Since the opening side plate 42 cannot move but only rotate, the opening control arm 43 on the control block 431 pushed inwards will be pushed to both sides, and this side of the opening side plate 42 will be pushed to both sides, increasing the gap. On the other side, when the control block 431 moves outwards to pull the opening control arm 43, it will be pulled inwards instead, reducing the gap, causing both opening side plates 42 to rotate, and the distance between them is smaller the closer it is to the rotation point. The control block 431 can move inside the bottom housing 31 to adapt to the displacement of the two L connecting plates 44 with opposite directions and different moving distances; A top baffle 421 is arranged on the top of the opening side plate 42, which still blocks the top after rotation. In this way, asphalt can only pass through the gap of the opening side plate 42. The smaller the gap, the less asphalt is output. In this way, when the paver main body 1 lays asphalt through the output trough 2 during turning, since the angular velocity is the same during rotation, but the linear velocity at each point on the output trough 2 is different. The farther away from the rotation center, the larger the swept area, and more asphalt needs to be laid. The closer to the rotation center, the smaller the swept area, so that when laying, the less asphalt is output closer to the rotation center, and the more asphalt is output towards the outside, making the asphalt more uniform.

[0022] The frame connecting plate 441 is fixedly connected to the bottom surface of the L-shaped plate 32.

[0023] The uniform paving mechanism 5 includes an upper platform 51. An input trough 511 is opened on the top surface of the upper platform 51. A connection hole 512 is opened on the outer surface of the upper platform 51. A contact convex block 5121 is fixedly connected to the inner surface of the connection hole 512. A bottom limiting groove 513 is opened on the bottom surface of the upper platform 51. A lower platform 52 is slidably connected to the bottom surface of the upper platform 51. A connection limiting column 521 is fixedly connected to the top surface of the lower platform 52. A pushing groove 522 is opened on the outer surface of the lower platform 52. An opening connection block 523 is fixedly connected to the outer surface of the lower platform 52. An opening connection groove 524 is opened on the outer surface of the opening side plate 42; The upper platform 51 is slidably connected to the inner surface of the output groove 2. There are two lower platforms 52. The bottom limiting groove 513 is slidably connected to the connecting limiting column 521. The opening connecting block 523 is slidably connected to the inner surface of the opening connecting groove 524. The lower platform 52 is slidably connected to the outer surfaces of the opening side plate 42 and the top baffle 421. Through the setting of the even paving mechanism 5, during use, the upper platform 51 reciprocates through the cylindrical cam 62. The upper platform 51 adheres to the inner surface of the output groove 2 and will scrape off the asphalt covering the inner side of the output groove 2 when moving, so as to prevent the asphalt from adhering to the inner side of the output groove 2 for a long time and causing blockage. The input groove 511 is for the asphalt to pass through. The bottom of the upper platform 51 is connected to the lower platform 52 for adhering to the outer surfaces of the opening side plate 42 and the top baffle 421, and moves synchronously with the upper platform 51 to also achieve the scraping effect. The lower platform 52 is installed in the bottom limiting groove 513 of the upper platform 51 through the connecting limiting column 521. The connecting limiting column 521 can move and rotate in the bottom limiting groove 513, enabling the lower platform 52 to have a certain degree of freedom of movement and rotation while maintaining the connection with the upper platform 51, and always adhering to the surface of the opening side plate 42 through the opening connecting block 523 and the opening connecting groove 524. In this way, when the opening side plate 42 rotates, the lower platform 52 can follow the rotation for reciprocating movement to scrape the surface. When the lower platform 52 reciprocates, if the paver main body 1 turns, causing the opening side plate 42 to rotate, the opening gaps in different areas are different. When the lower platform 52 reciprocates, during the process of returning from a smaller gap to a larger gap, both sides of the pushing groove 522 are inclined planes. The asphalt has a small gap and passes slowly, so the asphalt will accumulate above. The inclined pushing groove 522 will pass through from the bottom of the accumulated asphalt, thereby reducing the pushing amount of the asphalt and scraping the upper surface of the top baffle 421.

[0024] The deviation mechanism 6 includes a driving motor 61. The output end of the driving motor 61 is fixedly connected with a cylindrical cam 62. The outer surface of the cylindrical cam 62 is slidably connected with a fixed housing 63. Both sides of the fixed housing 63 are fixedly connected with connecting pulling columns 631. The inner surface of the fixed housing 63 is slidably connected with a movable housing 64. A trigger spring 641 is sleeved on the outer surface of the movable housing 64. The outer surface of the connecting pulling column 631 is slidably connected with a trigger arm 65. A pulling groove 651 is opened on the outer surface of the trigger arm 65. The top surface of the driven push rod 33 is fixedly connected with a short connecting column 66, and the top surface of the other driven push rod 33 is fixedly connected with a long connecting column 661. The cylindrical cam 62 is rotatably connected to the outer surface of the output groove 2. There are two fixed housings 63. The movable housing 64 penetrates the fixed housing 63. Both ends of the trigger spring 641 are fixedly connected with the movable housing 64 and the fixed housing 63 respectively. The connecting pulling column 631 is slidably connected with the inner surface of the pulling groove 651. With the setting of the biasing mechanism 6, during use, the driving motor 61 drives the cylindrical cam 62 to rotate. The cam groove on the surface of the cylindrical cam 62 is a double helix, which cooperates with the contact bump 5121 of the upper platform 51 to achieve the reciprocating movement of the upper platform 51. When the paver main body 1 turns, the active T-shaped block 34 will rotate, causing the two driven push rods 33 to move away from the rotation center. The short connecting column 66 and the long connecting column 661 also move, so that when the trigger arm 65 moves, it pulls the connecting pull column 631 on the side close to the rotation center through the inner wall of the pulling groove 651. On the other side, when the pulling groove 651 moves, the inner wall of the pulling groove 651 does not contact the connecting pull column 631 and does not function. In this way, the fixed housing 63 on the side close to the rotation center will move inward, so that when the upper platform 51 reciprocates, the moving distance on the side close to the rotation center is reduced, and the path is reduced, so the time for each reciprocation is reduced, and the scraping frequency on the side with a large gap and more asphalt output is faster; When the upper platform 51 encounters the intersection of the double helix, if it cannot continue to move forward, it will enter the other helix and return. Since the position where the fixed housing 63 moves is not fixed, the upper platform 51 cannot enter the intersection every time. Therefore, the movable housing 64 and the trigger spring 641 are used for buffering. The moving distance of the movable housing 64 is greater than the distance between the intersections of the two double helices. In this way, when contacting the movable housing 64, if it cannot enter the intersection of the double helix immediately, it will continue to move and push the movable housing 64 and compress the trigger spring 641 until it enters the intersection of the double helix. Since the deformation amount of the trigger spring 641 is proportional to the force received, the reset of the trigger spring 641 will push the movable housing 64 to make it enter the other helix and return, realizing the reduction of the moving range on the side with less asphalt throughput and higher scraping frequency on the side with a large throughput.

[0025] In this embodiment, as Figure 1 、 Figure 2 、 Figure 3 shown, the output groove 2 is installed on the outside of the paver main body 1, and the other mechanisms are installed around the output groove 2; In this embodiment, as Figure 4 shown, the installation positions of the components after removing the output groove 2, and the overall structure of the turning mechanism 3; In this embodiment, as Figure 5 、 Figure 6 shown, the connection relationship of the components of the turning mechanism 3; In this embodiment, as Figure 7 、 Figure 8 、 Figure 12 shown, the deformation state of the opening mechanism 4 driven by the turning mechanism 3 before and after turning, and the rotation angles on both sides are different when turning; In this embodiment, as Figure 9As shown, both sides of the top baffle 421 are arc-shaped, and the radius dimension of the arc is the distance between the rotation center of the opening side plate 42 and the rotation center of the opening control arm 43. In this way, when the top baffle 421 rotates and passes through the bottom housing 31, there will be no gap; In this embodiment, as Figure 10 , Figure 11 , Figure 13 shown, the turning mechanism 3, the opening mechanism 4, and the spreading mechanism 5 are interconnected and deformed simultaneously during turning and straight running; In this embodiment, as Figure 13 , Figure 14 shown, the connecting limit post 521 can move and rotate in the bottom limit groove 513, enabling the lower platform 52 to have a certain degree of freedom of movement and rotation while maintaining the connection with the upper platform 51; In this embodiment, as Figure 15 , Figure 16 shown, when the turning mechanism 3 rotates, the biasing mechanism 6 deforms to control the movement range of the spreading mechanism 5.

[0026] Usage method and advantages of the present invention: An asphalt paver for road engineering paving has the following working process: As Figures 1 to 16 shown, during use, the paver main body 1 outputs the asphalt to be paved to the center of the output groove 2, and continuously rotates the internal threaded transport rod 21 to disperse the asphalt to both sides; The upper platform 51 reciprocates through the cylindrical cam 62. The upper platform 51 adheres to the inner surface of the output groove 2 and scrapes the asphalt covering the inner side of the output groove 2 during movement. The lower platform 52 is connected to fit the outer surfaces of the opening side plate 42 and the top baffle 421, also having a scraping effect; In the initial state, the paver main body 1 runs straight, the opening side plates 42 are in a parallel state, and the gaps in each interval are equal. When the output groove 2 outputs asphalt through the opening mechanism 4, the passing amounts of asphalt output in each part are the same; When the paver main body 1 turns, the driving wheels 321 on both sides rotate, and the rotation angle of the driving wheel 321 closer to the inside of the rotation center is greater than that of the driving wheel 321 on the outside, and push and pull the push control blocks 431 on both sides to move, causing the opening side plates 42 to rotate, and the gaps to form a trapezoid. During paving, the closer to the rotation center, the smaller the gap and the less asphalt output, and the more asphalt is output towards the outside, making the asphalt more uniform; At the same time during turning, the driven push rods 33 on both sides move away from the rotation center, causing the trigger arm 65 to pull the connecting pull column 631 on the side closer to the rotation center through the inner wall of the pulling groove 651 during movement, and the fixed housing 63 on the side closer to the rotation center will move inward, causing the moving distance of the upper platform 51 to decrease on the side closer to the rotation center during reciprocating movement.

[0027] The above has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An asphalt paver for road engineering paving, including a paver main body (1) and an output chute (2). A threaded transport rod (21) is rotatably connected to the inner surface of the output chute (2), and both sides of the output chute (2) are fixedly connected with side shells (22). It is characterized in that: A turning mechanism (3) for towing and steering is arranged on the bottom surface of the side shells (22). An opening mechanism (4) for controlling the output amount at different positions is arranged on the inner surface of the turning mechanism (3). A leveling mechanism (5) for scraping and leveling asphalt is arranged on the inner surface of the output chute (2). A deflection mechanism (6) for adjusting the scraping frequency according to the steering is arranged on the outer surface of the leveling mechanism (5).

2. The asphalt paver for road engineering paving according to claim 1, wherein: The turning mechanism (3) includes a bottom shell (31). The bottom shell (31) is fixedly connected to the bottom surface of the output chute (2). Symmetrically distributed wheel mounting brackets (311) are fixedly connected to both sides of the bottom shell (31). An L-shaped plate (32) is rotatably connected to the inner surface of the wheel mounting bracket (311). A driving wheel (321) is rotatably connected to one side surface of the L-shaped plate (32). A driving T-shaped block (34) is hinged to the other side surface of the L-shaped plate (32). A bottom mounting bracket (341) is fixedly connected to the outer surface of the bottom shell (31). A rotating mounting column (342) is fixedly connected to the top surface of the bottom mounting bracket (341).

3. The asphalt paver for road engineering paving according to claim 2, characterized in that: The turning mechanism (3) includes a bottom shell (31). The bottom shell (31) is fixedly connected to the bottom surface of the output chute (2). Symmetrically distributed wheel mounting brackets (311) are fixedly connected to both sides of the bottom shell (31). An L-shaped plate (32) is rotatably connected to the inner surface of the wheel mounting bracket (311). A driving wheel (321) is rotatably connected to one side surface of the L-shaped plate (32). A driven push rod (33) is hinged to the other side surface of the L-shaped plate (32). The other end of the driven push rod (33) is hinged to a driving T-shaped block (34).

4. The asphalt paver for road engineering laying according to claim 3, characterized in that: The driven push rods (33) are symmetrically distributed on both sides of the driving T-shaped block (34).

5. The asphalt paver for road engineering paving according to claim 4, characterized in that: The opening mechanism (4) includes an opening support frame (41). An opening side plate (42) is rotatably connected to the top surface of the opening support frame (41). Opening control arms (43) are hinged to both ends of the opening side plate (42). A push control block (431) is hinged to the other end of the opening control arm (43). An L-shaped connecting plate (44) is fixedly connected to the outer surface of the push control block (431). A frame connecting plate (441) is rotatably connected to the top surface of the L-shaped connecting plate (44).

6. The asphalt paver for road engineering paving according to claim 5, characterized in that: The frame connecting plate (441) is fixedly connected to the bottom surface of the L-shaped plate (32).

7. The asphalt paver for road engineering laying according to claim 6, characterized in that: The uniform laying mechanism (5) includes an upper platform (51). A connection hole (512) is formed on the outer surface of the upper platform (51). A contact bump (5121) is fixedly connected to the inner surface of the connection hole (512). A bottom limiting groove (513) is formed on the bottom surface of the upper platform (51). A lower platform (52) is slidably connected to the bottom surface of the upper platform (51). A connection limiting column (521) is fixedly connected to the top surface of the lower platform (52). A pushing groove (522) is formed on the outer surface of the lower platform (52).

8. An asphalt paver for road engineering laying according to claim 7, characterized in that: The biasing mechanism (6) includes a drive motor (61). A cylindrical cam (62) is fixedly connected to the output end of the drive motor (61). A fixed housing (63) is slidably connected to the outer surface of the cylindrical cam (62). Connection pulling columns (631) are fixedly connected to both sides of the fixed housing (63). A movable housing (64) is slidably connected to the inner surface of the fixed housing (63). A trigger spring (641) is sleeved on the outer surface of the movable housing (64). A trigger arm (65) is slidably connected to the outer surface of the connection pulling column (631). A pulling groove (651) is formed on the outer surface of the trigger arm (65).

9. The asphalt paver for road engineering laying according to claim 8, characterized in that: The upper platform (51) is slidably connected to the inner surface of the output groove (2). The lower platform (52) is slidably connected to the outer surfaces of the opening side plate (42) and the top baffle (421). The cylindrical cam (62) passes through the connection hole (512) and is slidably connected to the contact bump (5121).

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