High-density paving and forming device for asphalt mixture

Abstract

The utility model belongs to the technical field of asphalt pavement construction, and particularly relates to a high-density asphalt mixture paving and forming device which comprises a transport vehicle, a hopper is fixedly mounted on the transport vehicle, and a paving mechanism is arranged on the transport vehicle; by arranging the paving mechanism, asphalt is uniformly paved on the ground, so that the paving efficiency is improved, the uniform distribution of the asphalt is ensured, the paving thickness of the asphalt can be accurately adjusted, the flexibility is high, and the specific requirements of different projects on the thickness of an asphalt layer can be met; the height between the pressing roller located between the two first connecting frames and the asphalt ground is adjusted, the pressing roller preliminarily compacts just paved asphalt, it can be ensured that asphalt mixtures are evenly compacted in the paving process, and therefore the flatness and compactness of the road surface are improved, subsequent high-density compaction operation can be conveniently achieved, the characteristics of being efficient, flexible and integrated are achieved, and the application range is wide. And the construction quality and efficiency of the asphalt pavement are obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt pavement construction, in particular to a high-density paving and molding device for asphalt mixture. Background Art

[0002] Asphalt paving is a crucial link in road construction, which directly determines the flatness, durability and driving comfort of the road. The paving of hot-mix asphalt pavement consists of paving and compaction. The paver spreads the mixture on the underlying layer, and the roller performs the initial compaction, secondary compaction and final compaction process to finally obtain a dense and compacted pavement.

[0003] The existing asphalt paving and forming devices have certain defects when paving asphalt. It is difficult to fully control the thickness of the asphalt after paving, and it is difficult to perform preliminary compaction treatment on the asphalt pavement in time, so that subsequent high-level compaction operations cannot be guaranteed.

[0004] In view of the above technical defects, a solution is now proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a high-density paving and forming device for asphalt mixture, which improves the paving efficiency by setting a paving mechanism, accurately adjusts the paving thickness of the asphalt, and preliminarily compacts the newly paved asphalt, thereby improving the flatness and density of the road surface and solving the problems raised by the background technology.

[0006] The purpose of the utility model can be achieved by the following technical solutions: A high-density paving and forming device for asphalt mixture, comprising a transport vehicle, a hopper is fixedly installed on the transport vehicle, and a paving mechanism is provided on the transport vehicle;

[0007] The paving mechanism includes a connecting cylinder fixedly connected to the hopper, a spiral feeding rod is rotatably connected to the fixed axis in the connecting cylinder, mounting frames are fixedly connected to the outer walls of the transport vehicle on both sides, a pair of scrapers are vertically slidably connected to the mounting frames, a connecting frame 1 is rotatably connected to the end of the mounting frame away from the transport vehicle, a pressure roller is rotatably connected between the two connecting frames 1, a semi-cylinder is connected to the bottom side of the connecting cylinder, a rotating shaft is rotatably connected to the fixed axis in the semi-cylinder, and two symmetrically arranged spiral blades are fixedly connected to the outer contour of the discharge box.

[0008] Preferably, the bottom of the hopper is provided with an arc-shaped groove, and the arc-shaped groove at the bottom of the hopper is connected to the connecting tube.

[0009] Preferably, a material discharge box is fixedly connected to the bottom end of the connecting cylinder, the lower surface of the material discharge box is fixedly connected to the semi-cylinder, a discharge groove is provided at the connection between the connecting cylinder and the material discharge box, and an opening is provided at the connection between the material discharge box and the semi-cylinder.

[0010] Preferably, a connection seat is fixedly connected to the upper surface of the scraper, and two symmetrically arranged limit rods are fixedly connected to the upper surface of the connection seat. The two limit rods pass through the mounting frame and are vertically slidably connected to the mounting frame.

[0011] Preferably, a second hydraulic push rod is fixedly connected to the upper surface of the mounting frame, the top ends of the two limit rods are commonly fixedly connected to a connecting plate, and the output end of the second hydraulic push rod is fixedly connected to the lower surface of the connecting plate.

[0012] Preferably, both sides of the mounting frame are fixedly connected with a connecting frame 2, and the connecting frame 2 is rotatably connected to a hydraulic push rod 1 via a pin shaft, and one end of the hydraulic push rod 1 away from the connecting frame 2 is rotatably connected to the surface of the connecting frame 1 close to the pressure roller via a pin shaft.

[0013] Beneficial effects of the utility model:

[0014] (1) The utility model provides a paving mechanism to efficiently transport the asphalt mixture from the hopper to the connecting cylinder, and then evenly spreads the asphalt on the ground through the semi-cylinder and the spiral blade, thereby improving the paving efficiency and ensuring the uniform distribution of the asphalt. The vertically sliding scraper can accurately adjust the paving thickness of the asphalt, and has high flexibility to meet the specific requirements of different projects for the thickness of the asphalt layer. The roller performs preliminary compaction on the newly spread asphalt, which is convenient for the subsequent high-density compaction operation. It has the characteristics of high efficiency, flexibility and integration, and significantly improves the construction quality and efficiency of the asphalt pavement.

[0015] (2) The telescopic end of the hydraulic push rod pushes the connecting frame to swing, thereby adjusting the height between the pressure roller and the asphalt ground between the two connecting frames. The pressure roller performs preliminary compaction on the newly spread asphalt, which can ensure that the asphalt mixture is evenly compacted during the paving process, thereby improving the flatness and density of the road surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings;

[0017] Figure 1 The utility model has an overall structure of three-dimensional Figure 1 ;

[0018] Figure 2 The utility model has an overall structure of three-dimensional Figure 2 ;

[0019] Figure 3 The utility model has an overall structure of three-dimensional Figure 3 ;

[0020] Figure 4 This is a schematic diagram of the structure of the material box of the utility model;

[0021] Figure 5 The utility model is a structural schematic diagram of a hydraulic push rod.

[0022] Legend: 1. Transport vehicle; 2. Hopper; 3. Mounting frame; 4. Connecting frame 1; 5. Pressing roller; 6. Connecting seat; 7. Semi-cylinder; 8. Hydraulic push rod 1; 9. Connecting frame 2; 10. Spiral blade; 11. Rotating shaft; 12. Scraper; 13. Limit rod; 14. Connecting plate; 15. Hydraulic push rod 2; 16. Spiral feeding rod; 17. Connecting cylinder; 18. Discharge box. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] This embodiment is used to solve the problem that the existing devices are difficult to fully control the thickness of asphalt after paving, difficult to carry out preliminary compaction treatment on the asphalt pavement in time, and thus difficult to ensure subsequent high-level compaction operations.

[0026] See also Figure 1 - Figure 5 As shown, this embodiment is a high-density paving and forming device for asphalt mixture, comprising a transport vehicle 1, a hopper 2 is fixedly mounted on the transport vehicle 1, and a paving mechanism is provided on the transport vehicle 1;

[0027] The paving mechanism includes a connecting cylinder 17 fixedly connected to the hopper 2, and a spiral feeding rod 16 is rotatably connected to the connecting cylinder 17. When the spiral feeding rod 16 rotates, the asphalt in the hopper 2 can be transported to the connecting cylinder 17. The two sides of the outer wall of the transport vehicle 1 are fixedly connected to the mounting frame 3. The mounting frame 3 is vertically slidably connected to the scraper 12. When the scraper 12 moves in the vertical direction, it can assist in adjusting the thickness of the asphalt paving and scrape off the excess asphalt.

[0028] The mounting frame 3 is rotatably connected to a connecting frame 4 at one end away from the transport vehicle 1, and a pressure roller 5 is rotatably connected between the two connecting frames 4. The pressure roller 5 can perform preliminary compaction on the asphalt ground after paving, so as to facilitate the subsequent roller to further perform high-density compaction operation on it. A semi-cylinder 7 is connected to one side of the bottom of the connecting cylinder 17, and a rotating shaft 11 is rotatably connected to the semi-cylinder 7. Two symmetrically arranged spiral blades 10 are fixedly connected to the outer contour of the rotating shaft 11. The connecting cylinder 17 is connected to the semi-cylinder 7 through the connecting cylinder 17, so that the asphalt in the hopper 2 can be transported to the semi-cylinder 7, and with the rotation of the rotating shaft 11 in the semi-cylinder 7, under the action of the spiral blades 10, the asphalt is transported to the two sides of the lower material box 18, and under the action of the scraper 12, the thickness of the asphalt paving can be adjusted, and the asphalt pavement can be compacted with high density in cooperation with the pressure roller 5 and the subsequent roller.

[0029] The bottom of the hopper 2 is arranged in an arc-shaped groove, and the spiral feeding rod 16 passes through the connecting tube 17 and is located in the arc-shaped groove in the hopper 2. The arc-shaped groove at the bottom of the hopper 2 is connected with the connecting tube 17. When the motor 1 on the hopper 2 away from the end of the connecting tube 17 is started, the spiral feeding rod 16 is driven to rotate, so that the asphalt in the hopper 2 can be transported to the connecting tube 17.

[0030] A discharge box 18 is fixedly connected to the bottom end of the connecting cylinder 17, and the lower surface of the discharge box 18 is fixedly connected to the semi-cylinder 7. A discharge groove is opened at the connection between the connecting cylinder 17 and the discharge box 18, and an opening is opened at the connection between the discharge box 18 and the semi-cylinder 7. The asphalt in the hopper 2 is transported through the discharge groove between the connecting cylinder 17 and the discharge box 18 under the action of the spiral feeding rod 16, and falls between the two spiral blades 10 through the opening between the discharge box 18 and the semi-cylinder 7, and the motor 2 located on one side of the semi-cylinder 7 is started. The output shaft of the motor 2 is fixedly connected to the rotating shaft 11, thereby starting the rotating shaft 11 to rotate, and the asphalt located between the two spiral blades 10 can be transported to both sides.

[0031] The upper surface of the scraper 12 is fixedly connected to a connecting seat 6, and the upper surface of the connecting seat 6 is fixedly connected to two symmetrically arranged limit rods 13, the two limit rods 13 penetrate the mounting frame 3 and are vertically slidably connected to the mounting frame 3, and the two limit rods 13 limit the vertical direction of the connecting seat 6, so that the scraper 12 fixedly connected to the connecting seat 6 can stably move in the vertical direction to adjust the thickness of the paved asphalt.

[0032] A hydraulic push rod 2 15 is fixedly connected to the upper surface of the mounting frame 3, and the top ends of the two limit rods 13 are commonly fixedly connected to a connecting plate 14. The output end of the hydraulic push rod 2 15 is fixedly connected to the lower surface of the connecting plate 14. The hydraulic push rod 2 15 located on the mounting frame 3 is started, and the telescopic end of the hydraulic push rod 2 15 pushes the connecting plate 14 to move, so that the limit rod 13 fixedly connected to the connecting plate 14 can pull the scraper 12 to move in the vertical direction.

[0033] Embodiment 2:

[0034] This embodiment is used to solve the problem of adjusting the compaction thickness of asphalt ground.

[0035] See also Figure 1 , Figure 5 As shown, a high-density paving and forming device for asphalt mixture of the present embodiment includes a mounting frame 3 with connecting frames 9 fixedly connected on both sides, the connecting frame 29 is rotatably connected to a hydraulic push rod 8 through a pin shaft, and the end of the hydraulic push rod 8 away from the connecting frame 29 is rotatably connected to the surface of the connecting frame 4 close to the pressure roller 5 through the pin shaft. When the hydraulic push rod 8 is started, the telescopic end of the hydraulic push rod 8 pushes the connecting frame 4 to swing, thereby adjusting the height of the pressure roller 5 located between the two connecting frames 4 and the asphalt ground, thereby adjusting the density of the initial compaction of the asphalt, and at the same time, adjusting the height of the scraper 12 to make an adaptive adjustment.

[0036] Combining Embodiment 1 with Embodiment 2

[0037] By setting up a spreading mechanism, the asphalt mixture is efficiently transported from the hopper 2 to the connecting cylinder 17, and then the asphalt is evenly spread on the ground through the semi-cylinder 7 and the spiral blade 10, thereby improving the spreading efficiency and ensuring the uniform distribution of the asphalt. The vertically sliding scraper 12 can accurately adjust the spreading thickness of the asphalt, which has high flexibility and can meet the specific requirements of different projects for the thickness of the asphalt layer. The roller 5 performs preliminary compaction on the asphalt just spread, which can ensure that the asphalt mixture is evenly compacted during the paving process, thereby improving the flatness and density of the road surface, and laying a good foundation for the subsequent high-density compaction operation of the roller. It has the characteristics of high efficiency, flexibility and integration, and significantly improves the construction quality and efficiency of the asphalt pavement.

[0038] like Figure 1 - Figure 5 As shown, the working process and principle of the utility model are as follows:

[0039] Step 1: pour the asphalt mixture into the hopper 2, start the motor 1 on the hopper 2 away from the end of the connecting cylinder 17, and the motor 1 drives the spiral feeding rod 16 to rotate, so that the asphalt in the hopper 2 can be transported to the connecting cylinder 17, so that the asphalt in the connecting cylinder 17 falls into the hopper 2 through the discharge box 18, and the asphalt is transported through the discharge groove between the connecting cylinder 17 and the discharge box 18, and falls between the two spiral blades 10 through the opening between the discharge box 18 and the semi-cylinder 7, and the motor 2 located on one side of the semi-cylinder 7 is started. The output shaft of the motor 2 is fixedly connected to the rotating shaft 11, so that the rotating shaft 11 is started to rotate, and the asphalt located between the two spiral blades 10 can be transported to both sides;

[0040] Step 2, start the hydraulic push rod 2 15 located on the mounting frame 3, the telescopic end of the hydraulic push rod 2 15 pushes the connecting plate 14 to move, so that the limit rod 13 fixedly connected to the connecting plate 14 can pull the scraper 12 to move in the vertical direction, and the scraper 12 scrapes the asphalt to keep it at a specified height, start the hydraulic push rod 18, the telescopic end of the hydraulic push rod 18 pushes the connecting frame 14 to swing, thereby adjusting the height of the pressure roller 5 located between the two connecting frames 14 and the asphalt ground, realizing the adjustment of the density of the initial compaction of the asphalt, and at the same time, the height of the scraper 12 is adaptively adjusted.

[0041] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-density paving and forming device for asphalt mixture, comprising a transport vehicle (1), characterized in that: The transport vehicle (1) is fixedly provided with a hopper (2), and the transport vehicle (1) is provided with a paving mechanism; The paving mechanism comprises a connecting cylinder (17) connected to the hopper (2), a spiral feeding rod (16) is rotatably connected to the connecting cylinder (17) on a fixed axis, a mounting frame (3) is fixedly connected to both sides of the outer wall of the transport vehicle (1), a pair of scrapers (12) are vertically slidably connected to the mounting frame (3), the end of the mounting frame (3) away from the transport vehicle (1) is rotatably connected to a connecting frame one (4), a pressure roller (5) is rotatably connected between the two connecting frames one (4), a semi-cylinder (7) is through-connected to one side of the bottom of the connecting cylinder (17), a rotating shaft (11) is rotatably connected to the semi-cylinder (7), and two symmetrically arranged spiral blades (10) are fixedly connected to the outer contour of the rotating shaft (11).

2. A high-density paving and forming device for asphalt mixture according to claim 1, characterized in that: The bottom of the hopper (2) is provided with an arc-shaped groove, and the arc-shaped groove at the bottom of the hopper (2) is connected to the connecting tube (17).

3. The high-density paving and forming device for asphalt mixture according to claim 1, characterized in that: The bottom end of the connecting tube (17) is fixedly connected with a material discharge box (18), the lower surface of the material discharge box (18) is fixedly connected with the semi-cylinder (7), a material discharge groove is provided at the connection between the connecting tube (17) and the material discharge box (18), and an opening is provided at the connection between the material discharge box (18) and the semi-cylinder (7).

4. The high-density paving and forming device for asphalt mixture according to claim 1, characterized in that: The upper surface of the scraper (12) is fixedly connected to a connecting seat (6), and the upper surface of the connecting seat (6) is fixedly connected to two symmetrically arranged limiting rods (13), and the two limiting rods (13) penetrate the mounting frame (3) and are vertically slidably connected to the mounting frame (3).

5. The high-density paving and forming device for asphalt mixture according to claim 1, characterized in that: The upper surface of the mounting frame (3) is fixedly connected to a second hydraulic push rod (15), the top ends of the two limit rods (13) are commonly fixedly connected to a connecting plate (14), and the output end of the second hydraulic push rod (15) is fixedly connected to the lower surface of the connecting plate (14).

6. The high-density paving and forming device for asphalt mixture according to claim 1, characterized in that: Both sides of the mounting frame (3) are fixedly connected to a connecting frame 2 (9), and the connecting frame 2 (9) is rotatably connected to a hydraulic push rod 1 (8) via a pin shaft. The end of the hydraulic push rod 1 (8) away from the connecting frame 2 (9) is rotatably connected to the surface of the connecting frame 1 (4) close to the pressure roller (5) via a pin shaft.

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