Paving device for pavement wearing layer steel slag asphalt mixture construction

Abstract

The utility model provides a paving device for pavement wearing layer steel slag asphalt mixture construction, which comprises a horizontally arranged material conveying box, a spiral conveying assembly is arranged in the material conveying box, the spiral conveying assembly comprises a transmission shaft, two sections of spiral conveying blades with opposite spiral directions are distributed on the transmission shaft, and sliding support frames are erected at two ends of the material conveying box. A material outlet is formed in the bottom end of the material conveying box, a conveying cylinder used for conveying materials is downwards arranged at the position of the material outlet, a quantitative material conveying movable plate is arranged in the conveying cylinder, a material inlet is formed in the middle of the outer side of the material conveying box, a feeding box is arranged at the position of the material inlet, a circulating conveying feeding belt is arranged in the feeding box, and a material stirring plate is arranged on the circulating conveying feeding belt. The device is reasonable in structural arrangement, can ensure uniform and quantitative blanking during pavement of a wearing layer by spirally conveying, paving and decelerating and outputting a steel slag asphalt mixture, and not only shortens the construction period, but also can improve the engineering quality and prolong the service life of a pavement.

Description

Technical Field

[0001] The utility model belongs to the technical field of road maintenance equipment, and in particular relates to a paving device for the construction of steel slag asphalt mixture of road wear layer. Background Art

[0002] Steel slag is a solid waste material produced during the steelmaking process. It is composed of various oxides formed by oxidation of impurities such as silicon, manganese, phosphorus, and sulfur in pig iron during the smelting process. Studies have found that using steel slag to replace part of the aggregate to prepare the road wear layer and laying it on the road surface can achieve good preventive maintenance effects on roads due to the wear resistance and corrosion resistance of steel slag materials, and achieve solid waste utilization of steel slag in the road field.

[0003] According to different material properties and engineering conditions, the designed thickness of the paved wear layer is between 1.5cm and 2.5cm, which is not consistent in different engineering applications. Compared with the ordinary asphalt surface layer, it is thinner and requires less material. Because the wear layer structure is on the surface of the road surface, it has higher requirements for flatness. However, in the existing technology, when paving, steel slag asphalt mixture uses ordinary road paving equipment, and the material amount cannot be quantitatively controlled, resulting in the thickness of the wear layer being difficult to be uniform. In addition, during the paving process, the road surface needs to be leveled manually or with special equipment, which increases the construction cost. In addition, in order to avoid the cooling of the hot asphalt mixture, resulting in poor adhesion, the material amount of each paving needs to be coordinated with the leveling speed, resulting in the paving work being limited to "small amounts and multiple times", further reducing the paving speed and greatly affecting the construction efficiency. Therefore, it is urgent to propose a steel slag asphalt mixture wear layer paving equipment that can evenly discharge and quantitatively adjust the discharge, so as to achieve uniform and quantitative discharge for different wear layer design thicknesses, improve construction quality, and shorten the construction period. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects and shortcomings of the prior art, provide a paving device for the construction of steel slag asphalt mixture in the road wearing layer, and solve the above problems in the prior art.

[0005] In order to achieve the above technical objectives, the utility model is implemented through the following technical solutions:

[0006] The utility model provides a paving device for the construction of steel slag asphalt mixture of road surface wearing layer, comprising:

[0007] It comprises: a horizontally arranged feed box, a spiral conveying assembly is arranged in the feed box, the spiral conveying assembly comprises a transmission shaft, two sections of spiral conveying blades with opposite spiral directions are distributed on the transmission shaft, the feed box is supported and erected by sliding support frames at both ends, and a discharge port is arranged at the bottom of the feed box, a conveying cylinder is arranged downward at the discharge port, quantitative feed movable plates are arranged at intervals in the conveying cylinder, a feed port is arranged in the middle part of the outer side of the feed box, an inclined loading box is arranged at the feed port, a circulating conveying loading belt is arranged in the loading box, and a material stripping plate is distributed on the circulating conveying loading belt.

[0008] As a further improvement of the utility model, both ends of the transmission shaft are connected to the feed box through bearings, the spiral conveying blades are welded and fixed to the transmission shaft, and the transmission shaft is driven by a first transmission motor at the end.

[0009] As a further improvement of the utility model, the bottom end of the sliding support frame and the bottom end of the loading box are respectively provided with rollers that can roll on the ground.

[0010] As a further improvement of the present invention, an opening is provided on the outer side of the upper end portion of the conveying cylinder, and a mounting plate is arranged at the opening. The upper end of the mounting plate is connected to the conveying box above the opening by a pin, and the bottom end of the mounting plate is fixed to the conveying box below the opening by screws.

[0011] As a further improvement of the utility model, the mounting plates are respectively provided with slots for mounting a quantitative feeding movable plate, one end of the quantitative feeding movable plate is inserted from the slot to the inner side of the bottom end of the conveying cylinder, and is arranged to be inclined downward, the upper end of the quantitative feeding movable plate is rotatably connected to the mounting plate through pins, and the other end of the quantitative feeding movable plate is hingedly connected to the transmission angle plate.

[0012] As a further improvement of the utility model, the rotation of the transmission angle plate is driven by an electric push rod arranged on the side, and the upper and lower ends of the electric push rod are rotationally connected to the transmission angle plate and the conveying cylinder through pins, and the quantitative feeding movable plate is rotationally connected to the transmission angle plate through a connecting block.

[0013] As a further improvement of the present invention, the loading box is connected to the inside of the feeding box, the edge of the upper port of the loading box is welded to the edge of the feeding port of the feeding box, and the bottom end of the loading box is provided with an inclined and raised feeding port.

[0014] Advantages of the utility model:

[0015] 1. The paving device for the construction of steel slag asphalt mixture for the wearing layer of the road surface provided by the utility model decelerates and buffers the falling steel slag asphalt mixture for the wearing layer through a quantitative feeding movable plate. Compared with the traditional direct falling feeding method, it has stronger controllability and realizes uniform feeding in the horizontal direction of paving; in addition, two spiral conveying blades with opposite rotation directions push the mixture in opposite directions and transport it to the two ends of the paved road surface. Compared with the traditional single-blade single-spiral, the overall spiral travel distance is shorter and the variance of the feeding amount along the blade direction is smaller, thereby realizing uniform feeding in the vertical direction of paving; as a whole, it reduces the multiple leveling caused by uneven equipment feeding during the traditional wearing layer construction, thereby improving the construction efficiency.

[0016] 2. The paving device for the construction of steel slag asphalt mixture for the wearing layer of the road surface provided by the utility model is provided with a quantitative feeding movable plate which can rotate on the inner side of the conveying cylinder. By adjusting its angle, the feeding speed of the steel slag asphalt mixture for the wearing layer can be controlled. Compared with the traditional centralized feeding method, it can realize one-time paving and forming according to different working conditions and the designed thickness of the wearing layer, overcome the problem of uneven thickness of the wearing layer caused by inaccurate feeding amount, improve the construction quality, and extend the service life of the steel slag wearing layer.

[0017] 3. The utility model provides a paving device for the construction of steel slag asphalt mixture for the road wearing layer. The mounting plate and the conveying cylinder are rotatably connected. After the paving construction is completed, the surface of the quantitative feeding movable plate and the inner wall of the equipment are cleaned by rotating the mounting plate to avoid the adhesion of residual asphalt mixture. The operation is simple and the requirements for equipment operators are low, thereby effectively extending the service life of the equipment and reducing equipment maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model as a whole;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the feed box of the utility model;

[0021] Figure 4 It is a partial structural schematic diagram of the electric push rod of the utility model;

[0022] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the conveying cylinder of the utility model.

[0023] Reference numerals:

[0024] 1. Sliding support frame; 2. Feed box; 3. First transmission motor; 4. Feed box; 5. Second transmission motor; 6. Connecting shaft; 7. Mounting plate; 8. Transmission shaft; 9. Spiral conveying blade; 10. Circular conveying feeding belt; 11. Transmission roller; 12. Feeding plate; 13. Electric push rod; 14. Transmission angle plate; 15. Quantitative feeding movable plate; 16. Connecting block; 17. Conveying cylinder. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail through specific embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] The first transmission motor 3 (model: YS7134), the second transmission motor 5 (model: YEJ3-112M-4) and the electric push rod 13 (model: HTKC-35) mentioned in the present invention can all be purchased from the market or obtained by private customization.

[0027] See also Figures 1 to 5 ;

[0028] The utility model provides an embodiment: a slag construction equipment for road maintenance, including a feeding box 4, a second transmission motor 5 is fixedly installed on one side of the feeding box 4, a circulating conveying feeding belt 10 is installed on the inner side of the feeding box 4, and a plurality of material-diverting plates 12 are equidistantly arranged on the outer surface of the circulating conveying feeding belt 10, and transmission rollers 11 are installed on the inner sides of the upper and lower ends of the circulating conveying feeding belt 10, and a connecting shaft 6 is fixedly installed on the inner side of the transmission roller 11, and a feeding box 2 is fixedly installed on one end of the feeding box 4, and the feeding box 4 and the feeding box 2 are connected to each other. The material box 2 is welded and fixed, and a feed port is provided at the bottom end of the loading box 4. The loading box 4 is connected to the inside of the feed box 2. Sliding support frames 1 are fixedly installed at both ends of the feed box 2, and a first transmission motor 3 is fixedly installed at the upper end of one of the sliding support frames 1. A transmission shaft 8 is rotatably installed inside the feed box 2, and two sections of spiral conveying blades 9 are arranged on the transmission shaft 8. The two spiral conveying blades 9 can push the input steel slag asphalt mixture in opposite directions and convey it to the inner side of the bottom end of the feed box 2.

[0029] The bottom of the feeding box 2 is provided with a discharge port, and a conveying cylinder 17 is provided at the discharge port. An opening is provided on the outer side of the upper end of the conveying cylinder 17, and a mounting plate 7 is rotatably installed at the opening. The independently arranged mounting plate 7 facilitates the installation, debugging and replacement of the quantitative feeding movable plate 15. The upper end of the mounting plate 7 is connected to the feeding box 2 above the opening by a pin, and a plurality of quantitative feeding movable plates 15 are evenly rotatably connected to the inner side of the mounting plate 7. The upper end of the quantitative feeding movable plate 15 is rotatably connected with a connecting block 16, and one end of the quantitative feeding movable plate 15 away from the connecting block 16 is plugged into the inner side of the bottom end of the feeding box 2, so that the quantitative feeding movable plate 15 can be used to It is able to decelerate and buffer the falling steel slag asphalt mixture, thereby ensuring that the output of the steel slag asphalt mixture from the bottom end of the feed box 2 is uniform and stable. A transmission angle plate 14 is fixedly installed on one side of the multiple connecting blocks 16. The transmission angle plate 14 is connected to the feed box 2 through an electric push rod 13. The steel slag asphalt mixture is spirally conveyed and decelerated for output as a whole, so as to maintain the uniformity of the material in the horizontal and vertical directions of laying, and realize the control of the material discharge amount. The bottom end of the conveying cylinder 17 is arc-shaped, and the arc is set toward the rear, which further slows down the discharge speed of the material in the conveying cylinder 17 and increases the controllability of the project.

[0030] In one embodiment, see Figures 4 to 5 The upper and lower ends of the electric push rod 13 are rotatably connected with the transmission angle plate 14 and the feed box 2 through column pins. One end of the connecting block 16 is provided with an arc groove. One end of the quantitative feed movable plate 15 extends to the inner side of the arc groove. The other end of the quantitative feed movable plate 15 is inserted into the inner side of the bottom end of the feed box 2. The quantitative feed movable plate 15 is rotatably connected with the transmission angle plate 14 through the connecting block 16. The quantitative feed movable plate 15 is rotatably connected with the mounting plate 7 through a column pin. The upper end of the mounting plate 7 is connected to the feed box 2 through a column pin, and the bottom end of the mounting plate 7 is fixed to the feed box 2 through a screw connection, so that the electric push rod 13, under the support of the feed box 2, drives the quantitative feed movable plate 15 to rotate on the inner side of the mounting plate 7 through the transmission angle plate 14 and the connecting block 16, thereby being able to adjust the output of the steel slag asphalt mixture.

[0031] In one embodiment, see Figure 1 to Figure 2 One end of the connecting shaft 6 passes through the feeding box 4 and the transmission roller 11, and the connecting shaft 6 and the transmission roller 11 are connected by a flat key, both ends of the connecting shaft 6 are connected to the feeding box 4 through bearings, and the output end of the second transmission motor 5 is connected to one end of one of the connecting shafts 6 through a coupling, so that the second transmission motor 5 drives the circulating conveying feeding belt 10 to transmit on the inner side of the feeding box 4 through the connecting shaft 6 and the transmission roller 11 under the support of the feeding box 4.

[0032] In one embodiment, see Figures 1 to 3Both ends of the transmission shaft 8 are connected to the feed box 2 through bearings, the output end of the first transmission motor 3 is connected to the transmission shaft 8 through a coupling, the spiral conveying blades 9 are welded and fixed to the transmission shaft 8, and the two spiral conveying blades 9 have opposite rotation directions, so that the first transmission motor 3 drives the two spiral conveying blades 9 to rotate through the transmission shaft 8 under the support of the feed box 2, and then the two spiral conveying blades 9 can push the input steel slag asphalt mixture in opposite directions.

[0033] In one embodiment, the designed thickness of the pavement wear layer is 1 cm, and the designed gradation is AC-10. When the equipment in the utility model is paving, the whole equipment can be moved along the paving direction by rollers;

[0034] First, the steel slag asphalt mixture of the wear layer to be laid on the road surface is passed into the feed port at the bottom of the loading box 4, the power is turned on, and the second transmission motor 5 is started, so that the second transmission motor 5 drives the circulating conveying loading belt 10 to feed the material on the inner side of the loading box 4 through the connecting shaft 6 and the transmission roller 11 under the support of the loading box 4, and the loading box 4 is connected to the inside of the feeding box 2, so that the circulating conveying loading belt 10 can transport the steel slag asphalt mixture to the inner side of the upper end of the feeding box 2 through the material prying plate 12, and the two spiral conveying blades 9 are welded and fixed to the transmission shaft 8, and the two spiral conveying blades 9 have opposite rotation directions, and the first transmission motor 3 is started, so that the first transmission motor 3 drives the two spiral conveying blades 9 to rotate through the transmission shaft 8 under the support of the feeding box 2, and then the two spiral conveying blades 9 can push the input steel slag asphalt mixture in opposite directions and transport it to the inner side of the bottom end of the feeding box 2;

[0035] In one embodiment, a mounting plate 7 is installed on one side of the feed box 2, the upper end of the mounting plate 7 is connected to the feed box 2 by a pin, and a quantitative feed movable plate 15 is installed on the inner side of the mounting plate 7 by a pin, and one end of the quantitative feed movable plate 15 away from the connection block 16 is plugged into the inner side of the bottom end of the conveying cylinder 17, so that the quantitative feed movable plate 15 can decelerate and buffer the falling mixed material, ensuring that the mixed material is output from the bottom end of the feed box 2. Uniform and stable output;

[0036] In one embodiment, after the paving process starts, the electric push rod 13 is started, and the upper and lower ends of the electric push rod 13 are connected to the feed box 2 and the transmission angle plate 14 through pins, so that the electric push rod 13 drives the quantitative feed movable plate 15 to rotate on the inner side of the mounting plate 7 through the transmission angle plate 14 and the connecting block 16 under the support of the conveying cylinder 17. At a fixed paving speed, the output of the mixture is adjusted and calibrated continuously for multiple times to match the feed amount with the paving speed. After the equipment passes through the paving section, it can output the steel slag asphalt mixture with a wear layer thickness that meets the design requirements;

[0037] After the laying process is completed, by separating the bottom end of the feed box 2 from the mounting plate 7, the mounting plate 7 drives the quantitative feed movable plate 15 to rotate relative to the feed box 2, so as to facilitate the cleaning of the surface of the quantitative feed movable plate 15 and the inner wall of the equipment.

[0038] This specification describes several aspects of at least one embodiment of the present invention, and it is understood that various changes, modifications and improvements can be easily made by those skilled in the art. Such changes, modifications and improvements are intended to be within the spirit and scope of the present invention.

Claims

1. A paving device for the construction of steel slag asphalt mixture on the road wearing layer, It is characterized in that include: A horizontally arranged feed box (2) is provided with a screw conveying assembly inside the feed box (2), the screw conveying assembly comprising a transmission shaft (8), on which two sections of screw conveying blades (9) with opposite spiral directions are distributed, the feed box (2) is supported and erected by sliding support frames (1) at both ends, and a discharge port is provided at the bottom of the feed box (2), a conveying cylinder (17) is provided downward at the discharge port, and quantitative feed movable plates (15) are provided at intervals inside the conveying cylinder (17), a feed port is provided at the middle of the outer side of the feed box (2), and an inclined loading box (4) is provided at the feed port, a circulating conveying loading belt (10) is provided in the loading box (4), and a material shifting plate (12) is distributed on the circulating conveying loading belt (10).

2. The paving device for the construction of steel slag asphalt mixture for the road surface wearing layer as claimed in claim 1, It is characterized in that Both ends of the transmission shaft (8) are connected to the feed box (2) via bearings, the spiral conveying blades (9) are welded and fixed to the transmission shaft (8), and the transmission shaft is driven by a first transmission motor (3) at the end.

3. The paving device for the construction of steel slag asphalt mixture for the road surface wearing layer as claimed in claim 1, Features: The bottom end of the sliding support frame (1) and the bottom end of the loading box (4) are respectively provided with rollers that can roll on the ground.

4. The paving device for the construction of steel slag asphalt mixture for the road surface wearing layer as claimed in claim 1, Features: An opening is provided on the outer side of the upper end portion of the conveying cylinder (17), and a mounting plate (7) is arranged at the opening. The upper end of the mounting plate (7) is connected to the conveying box (2) above the opening via a pin, and the bottom end of the mounting plate (7) is fixed to the conveying box (2) below the opening via a screw.

5. The paving device for the construction of steel slag asphalt mixture for the road surface wearing layer as claimed in claim 4, Features: The mounting plate (7) is provided with slots for mounting a quantitative material feeding movable plate (15), one end of the quantitative material feeding movable plate (15) is inserted from the slot to the inner side of the bottom end of the conveying cylinder (17) and is arranged to be inclined downward, the upper end of the quantitative material feeding movable plate (15) is rotatably connected to the mounting plate (7) through a pin, and the other end of the quantitative material feeding movable plate (15) is hingedly connected to the transmission angle plate (14).

6. The paving device for the construction of steel slag asphalt mixture for the road surface wearing layer as claimed in claim 5, Features: The rotation of the transmission angle plate (14) is driven by an electric push rod (13) arranged on the side, and the upper and lower ends of the electric push rod (13) are rotatably connected to the transmission angle plate (14) and the conveying cylinder (17) through pins, and the quantitative feeding movable plate (15) is rotatably connected to the transmission angle plate (14) through a connecting block (16).

7. The paving device for the construction of steel slag asphalt mixture for the road surface wearing layer as claimed in claim 5, Features: The loading box (4) is connected to the inside of the feeding box (2); the edge of the upper port of the loading box (4) is welded to the edge of the feeding port of the feeding box (2); and the bottom end of the loading box (4) is provided with an inclined and raised feeding port.

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