Special asphalt mixing device for inhibiting scattering of stones on drainage asphalt pavement

Abstract

The utility model provides a special asphalt mixing device for inhibiting stone scattering of a drainage asphalt pavement, which relates to the technical field of asphalt mixing and comprises a supporting vehicle body, and a supporting plate is fixedly mounted on the top surface of the supporting vehicle body. By arranging the separated additive storage boxes, various different additives can be prepared at the same time, so that various additives can be rapidly added at the same time according to needs, and the mixing flexibility and efficiency are improved; an operator can rapidly and easily add all selected additives into the stirring barrel at a time, the mechanical operation is more direct and rapid than traditional one-by-one addition, the operation time is shortened, the complexity is reduced, various additives can be almost added into the stirring barrel at the same time, and the efficiency is improved. The uniformity of the whole mixture can be improved, so that the qualified special asphalt for inhibiting the scattering of stones on the drainage asphalt pavement can be produced.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt mixing, in particular to a special asphalt mixing device for suppressing the scattering of drainage asphalt pavement stones. Background Art

[0002] The special asphalt mixing device for suppressing the flying of stone in drainage asphalt pavement is a device designed to improve the overall quality and performance of asphalt mixture. The main purpose of the device is to ensure that asphalt and stone can be effectively bonded through additives, thereby reducing the flying of stone during construction and use. This equipment was developed to solve the problem of loose or flying stone that may occur during the use of drainage asphalt pavement, ensure the smoothness and service life of the pavement, and improve safety at the same time.

[0003] Publication No. CN215288645U discloses a modified asphalt mixture device, including a support vehicle body and a mixing drum, wherein universal wheels are fixedly connected at the four corners of the bottom of the support vehicle body, a controller is fixedly connected at one corner above the support vehicle body, a rotating support plate is fixedly connected on both sides of one end above the support vehicle body, an angle adjustment hydraulic cylinder is arranged on the side of the support vehicle body opposite to the rotating support plate, a mixing drum is arranged above the angle adjustment hydraulic cylinder and between the rotating support plate, the mixing drum is rotatably connected to the rotating support plate through a pin, and the angle adjustment hydraulic cylinder is connected to the mixing drum and the support vehicle body through an articulated seat. Although this asphalt mixing device drives the mixing drum to rotate along the pin above the rotating support plate through the angle adjustment hydraulic cylinder to adjust the angle of the mixing drum, on the one hand, it can facilitate the loading and unloading operations when modifying the asphalt mixture, and on the other hand, it can make the modified asphalt move back and forth along the inner wall of the mixing drum during mixing and stirring, thereby improving the uniformity and efficiency of the mixture. However, the addition of additives needs to be done manually one by one, which is not only time-consuming and labor-intensive, but also easily leads to inaccurate dosage of additives and disordered order of addition. In addition, it is difficult to ensure rapid and uniform mixing of multiple additives during manual addition, which affects the final quality and performance of the mixture, reduces production efficiency, increases operational complexity, and may lead to unstable product quality. Especially in the case of rapid adjustment and optimization of the ratio of multiple additives, the existing manual addition method is particularly inconvenient and inaccurate. This limitation is particularly evident in the preparation of special asphalts, such as asphalt that inhibits drainage and prevents the scattering of road stones, because such products have more stringent and precise requirements on the type and ratio of additives. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0005] The utility model adopts the following technical scheme: a special asphalt mixing device for suppressing the scattering of stone materials on a drainage asphalt pavement, comprising a supporting body, a supporting plate fixedly mounted on the top surface of the supporting body, a mixing drum rotatably connected to the surface of the supporting plate, one end of the mixing drum is connected to an inlet and outlet hopper, the other end of the mixing drum is connected to a motor, a spiral mixing blade is mounted on the output end of the motor, a feeding hole is provided on the surface of the spiral mixing blade, an additive inlet pipe is connected to the surface of the mixing drum, an additive storage box is connected to the top surface of the additive inlet pipe, a partition is fixedly mounted on the inner wall of the additive storage box, a slot is provided on the inner wall of the partition, and a plug is slidably connected to the inner wall of the slot.

[0006] Preferably, the bottom surface of the supporting vehicle body is rotatably connected with universal wheels, and the universal wheels are evenly distributed at the four corners of the bottom surface of the supporting vehicle body. Here, the supporting vehicle body can be conveniently moved.

[0007] Preferably, a cylinder is fixedly mounted on the top surface of the supporting vehicle body, a mounting plate is mounted on the output end of the cylinder, and a roller is fixedly mounted on the inner side of the mounting plate. Here, the angle of the mixing cylinder can be easily adjusted, thereby improving the mixing and operating efficiency.

[0008] Preferably, a sealing strip is fixedly mounted on the surface of the plug board, and the sealing strip is made of natural rubber. Here, the plug board can be sealed to prevent the additive from seeping out of the gap between the plug board and the slot.

[0009] Preferably, a spraying mechanism is provided at one end of the mixing cylinder, and the spraying mechanism includes a rotating tube, the rotating tube is rotatably connected to one end of the mixing cylinder, one end of the rotating tube is connected to a water inlet pipe, the other end of the rotating tube is connected to a square tube, the surface of the square tube is connected to a spray head, a worm gear is fixedly installed on the surface of the rotating tube, a side block is fixedly installed at one end of the mixing cylinder, and a worm is rotatably connected inside the side block. Here, the inner wall of the mixing cylinder can be sprayed to remove residual dirt.

[0010] Preferably, the worm wheel and the worm are meshed with each other, and the square tube is an "L"-shaped structure.

[0011] Preferably, the nozzles are arranged at equal distances on the surface of the square tube.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. The utility model can prepare a variety of different additives at the same time by providing a separated additive storage box, such as a polymer modifier, an anti-stripping agent, a stabilizer and a thickener, so that a variety of additives can be added quickly and simultaneously as needed, thereby improving the flexibility and efficiency of mixing. By using a slidable plug plate, the operator can quickly and easily add all selected additives to the mixing drum at one time. This mechanical operation is more direct and faster than the traditional one-by-one addition, reducing the operation time and complexity. Moreover, since the additives are prepared in advance in a plurality of separated spaces, the risk of metering errors or addition confusion that may occur during the addition process is reduced. This separation also helps to ensure the correct ratio of each additive, and a variety of additives can be added to the mixing drum at almost the same time, which helps to improve the uniformity of the overall mixture, thereby producing qualified special asphalt that inhibits the scattering of stone in drainage asphalt pavement.

[0014] 2. The utility model can effectively soften and remove asphalt residues on the inner wall of the mixing drum through hot water spraying. The use of hot water is particularly effective for cleaning viscous materials such as asphalt, because hot water can reduce the viscosity of asphalt, making it easier to clean. At the same time, the design of the worm and worm gear driving the nozzle to rotate can realize the 360-degree full-range rotation of the nozzle, ensuring that the water flow can cover every corner of the mixing drum. This comprehensive spraying method can clean the inner wall more thoroughly than a fixed-position nozzle. Moreover, since the staff only needs to control the rotation of the nozzle through a simple worm operation, there is no need to enter the inside of the drum or use complicated manual cleaning tools. This not only simplifies the cleaning process, but also greatly improves the safety of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a special asphalt mixing device for suppressing the scattering of stone materials on a drainage asphalt pavement proposed by the utility model;

[0016] Figure 2 The utility model provides a cross-sectional view of an additive storage box in a special asphalt mixing device for suppressing the scattering of stone materials on a drainage asphalt pavement;

[0017] Figure 3 The utility model proposes a special asphalt mixing device for suppressing the scattering of stone materials on drainage asphalt pavement. Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 The utility model provides a cross-sectional view of a mixing drum in a special asphalt mixing device for suppressing the scattering of stones on a drainage asphalt pavement;

[0019] Figure 5 The utility model proposes a special asphalt mixing device for suppressing the scattering of stone materials on drainage asphalt pavement. Figure 4 Enlarged view of point B in the middle;

[0020] Figure 6 The utility model provides a bottom view of a special asphalt mixing device for suppressing the scattering of stones on a drainage asphalt pavement.

[0021] Legend:

[0022] 1. Support body; 2. Support plate; 3. Mixing cylinder; 4. Inlet and outlet hopper; 5. Motor; 6. Spiral mixing blade; 7. Feed hole; 8. Additive inlet pipe; 9. Additive storage box; 10. Partition; 11. Slot; 12. Insert plate; 13. Sealing strip; 14. Universal wheel; 15. Cylinder; 16. Mounting plate; 17. Rotating pipe; 18. Water inlet pipe; 19. Square pipe; 20. Nozzle; 21. Worm gear; 22. Side block; 23. Worm; 24. Roller. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure. Embodiment 1

[0025] See also Figure 1-6The utility model provides a technical solution: a special asphalt mixing device for suppressing the scattering of stone materials on a drainage asphalt pavement, comprising a supporting body 1, a cylinder 15 is fixedly installed on the top surface of the supporting body 1, a mounting plate 16 is installed on the output end of the cylinder 15, and a roller 24 is fixedly installed on the inner side of the mounting plate 16. The cylinder 15 can drive the roller 24 to move up and down through a hydraulic or pneumatic mechanism, thereby pushing the mixing drum 3 to rotate to different angles, and this angle adjustment makes the mixing during the mixing process more uniform. The bottom surface of the supporting body 1 is rotatably connected with a universal wheel 14, which is evenly distributed at the four corners of the bottom surface of the supporting body 1 and is connected by bolts or welding, providing the mobile flexibility of the equipment and the convenience of position adjustment. The top surface of the supporting body 1 is also fixedly installed with a supporting plate 2, and the surface of the supporting plate 2 is rotatably connected with the mixing drum 3 through a bearing or a slip ring, so that the mixing drum 3 can rotate smoothly under the drive of the motor 5. One end of the mixing drum 3 is connected with an inlet and outlet hopper 4, and the modified asphalt can be fed and discharged through the inlet and outlet hopper 4. The other end of the mixing cylinder 3 is connected to a motor 5, and a spiral mixing blade 6 is installed at the output end of the motor 5 through a coupling or direct coupling. Passing holes 7 are provided on the surface of the spiral mixing blade 6. These passing holes 7 allow better mixing and passage of the modified asphalt and additives during the mixing process, thereby improving the mixing effect.

[0026] See also Figure 1-6 , the surface of the mixing cylinder 3 is connected with an additive inlet pipe 8, and the top surface of the additive inlet pipe 8 is connected with an additive storage box 9. The inner wall of the additive storage box 9 is fixedly installed with a partition 10, which is fixed by welding or clamping, and the inner wall is provided with a slot 11. The inner wall of the slot 11 is slidably connected with a plug plate 12, and the surface of the plug plate 12 is fixedly installed with a sealing strip 13, which is made of natural rubber, which can effectively prevent the leakage of additives and ensure the accurate delivery of additives. When it is necessary to add polymer modifiers, anti-stripping agents, stabilizers and thickeners, the staff only needs to pull the plug plate 12 outward, and the plug plate 12 can easily slide to the fully removed position in the slot 11 through the sliding mechanism. At this time, the various separated additives can be directly dropped into the mixing cylinder 3 through the additive inlet pipe 8 to achieve fast and uniform mixing. This design of separated storage and one-time quick addition not only improves the flexibility and efficiency of mixing, but also reduces the operation time and complexity, ensuring the correct ratio of each additive. Through this design, qualified special asphalt that can inhibit the scattering of stone in drainage asphalt pavement can be produced. Embodiment 2

[0027] See also Figure 4-6, a spraying mechanism is provided at one end of the mixing drum 3, and the spraying mechanism includes a rotating tube 17, which is rotatably connected to one end of the mixing drum 3, and a ball bearing or a sliding bearing is used to realize the rotation connection to ensure the stability and durability of the rotation. One end of the rotating tube 17 is connected to a water inlet pipe 18, which is connected by a threaded connection or a quick connector, which is convenient for quick disassembly and maintenance. The other end of the rotating tube 17 is connected to a square tube 19, and the surface of the square tube 19 with an "L"-shaped structure is connected to a nozzle 20, and the nozzles 20 are arranged at equal distances on the surface of the square tube 19 to ensure uniform coverage of the water spray, which helps to thoroughly clean the inner wall. A worm gear 21 is fixedly installed on the surface of the rotating tube 17, which is made of cast iron or carbon steel to provide wear resistance and bearing capacity. A side block 22 is fixedly installed at one end of the mixing drum 3, and a worm 23 is rotatably connected inside the side block 22, and a bearing support is used to reduce friction. The worm gear 21 is meshed with the worm 23 to achieve high torque transmission and self-locking function, thereby improving the convenience and safety of operation.

[0028] Working principle: modified asphalt enters and is discharged through the inlet and outlet hopper 4, and then the motor 5 can drive the spiral stirring blade 6 to rotate. At this time, the spiral stirring blade 6 can stir the modified asphalt, and the modified asphalt can be allowed to pass through the set material passing hole 7, so as to improve the mixing effect, and the set additive storage box 9 can be used to put additives. The set partition 10 can separate the additive storage box 9 into multiple spaces for respectively putting polymer modifiers, anti-stripping agents, stabilizers and thickeners. In the process of mixing asphalt, when it is necessary to add polymer modifiers, anti-stripping agents, stabilizers and thickeners, the staff only needs to pull the plug plate 12 outwards, and the plug plate 12 slides in the slot 11 at this time until the plug plate 12 slides out, and then it can be taken out. The lower plug plate 12, at this time, the polymer modifier, anti-stripping agent, stabilizer and thickener can fall into the mixing drum 3 through the additive inlet pipe 8 and be mixed into the asphalt. The utility model can prepare a variety of different additives at the same time by setting a separate additive storage box 9, such as polymer modifier, anti-stripping agent, stabilizer and thickener, so that a variety of additives can be added quickly and simultaneously as needed, thereby improving the flexibility and efficiency of mixing. By using the slidable plug plate 12, the operator can quickly and easily add all the selected additives to the mixing drum 3 at one time. This mechanical operation is more direct and faster than the traditional one-by-one addition, reducing the operation time and complexity, and because the additives are prepared in advance in multiple separate spaces , reducing the risk of metering errors or confusion in the addition process. This separation also helps to ensure the correct ratio of each additive, and multiple additives can be added to the mixing drum 3 at almost the same time, which helps to improve the uniformity of the overall mixture, thereby producing qualified special asphalt that inhibits the scattering of drainage asphalt pavement stones. After the asphalt is mixed and discharged, the staff connects the water inlet pipe 18 to the hot water source, and then the water passes through the water inlet pipe 18, the rotating pipe 17 and the square pipe 19, and finally sprays out from the nozzle 20. At this time, the water can spray the inner wall of the mixing drum 3, thereby cleaning some of the residual asphalt. At the same time, the staff can rotate the worm 23, and the worm 23 can then drive the worm wheel 21 meshing with it to rotate, and the worm wheel 21 then drives The movable square tube 19 and the nozzle 20 rotate, and the nozzle 20 can now fully spray the inner wall of the mixing cylinder 3. The utility model can effectively soften and remove the asphalt residue on the inner wall of the mixing cylinder 3 by hot water spraying. The use of hot water is particularly effective for cleaning viscous materials such as asphalt, because hot water can reduce the viscosity of asphalt, making it easier to clean. At the same time, the design of driving the nozzle 20 to rotate by the worm 23 and the worm gear 21 can realize the 360-degree full-range rotation of the nozzle 20, ensuring that the water flow can cover every corner of the mixing cylinder 3. This comprehensive spraying method can clean the inner wall more thoroughly than the nozzle 20 in a fixed position, and the staff can control the rotation of the nozzle 20 only by a simple operation of the worm 23.There is no need to enter the cylinder or use complicated manual cleaning tools, which not only simplifies the cleaning process but also greatly improves the safety of operation.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A special asphalt mixing device for suppressing the scattering of stone materials on a drainage asphalt pavement, comprising a supporting vehicle body (1), characterized in that: A support plate (2) is fixedly mounted on the top surface of the support vehicle body (1); a mixing drum (3) is rotatably connected to the surface of the support plate (2); one end of the mixing drum (3) is connected to an inlet and outlet hopper (4); the other end of the mixing drum (3) is connected to a motor (5); a spiral mixing blade (6) is mounted on the output end of the motor (5); a feed hole (7) is provided on the surface of the spiral mixing blade (6); an additive inlet pipe (8) is connected to the surface of the mixing drum (3); the top surface of the additive inlet pipe (8) is connected to an additive storage box (9); a partition plate (10) is fixedly mounted on the inner wall of the additive storage box (9); a slot (11) is provided on the inner wall of the partition plate (10); a plug plate (12) is slidably connected to the inner wall of the slot (11).

2. The special asphalt mixing device for suppressing the scattering of drainage asphalt pavement stones according to claim 1 is characterized in that: The bottom surface of the supporting vehicle body (1) is rotatably connected to universal wheels (14), and the universal wheels (14) are evenly distributed at the four corners of the bottom surface of the supporting vehicle body (1).

3. The special asphalt mixing device for suppressing the scattering of drainage asphalt pavement stones according to claim 1 is characterized in that: A cylinder (15) is fixedly mounted on the top surface of the supporting vehicle body (1), a mounting plate (16) is mounted on the output end of the cylinder (15), and a roller (24) is fixedly mounted on the inner side of the mounting plate (16).

4. The special asphalt mixing device for suppressing the scattering of stone materials on a drainable asphalt pavement according to claim 1 is characterized in that: A sealing strip (13) is fixedly mounted on the surface of the plug plate (12), and the sealing strip (13) is made of natural rubber.

5. The special asphalt mixing device for suppressing the scattering of drainage asphalt pavement stones according to claim 1 is characterized in that: A spraying mechanism is provided at one end of the mixing drum (3), the spraying mechanism comprising a rotating tube (17), the rotating tube (17) being rotatably connected to one end of the mixing drum (3), one end of the rotating tube (17) being connected to a water inlet pipe (18), the other end of the rotating tube (17) being connected to a square tube (19), the surface of the square tube (19) being connected to a spray head (20), a worm gear (21) being fixedly mounted on the surface of the rotating tube (17), a side block (22) being fixedly mounted at one end of the mixing drum (3), the interior of the side block (22) being rotatably connected to a worm (23).

6. The special asphalt mixing device for suppressing the scattering of stone materials on a drainage asphalt pavement according to claim 5 is characterized in that: The worm wheel (21) is meshed with the worm (23), and the square tube (19) is an "L"-shaped structure.

7. The special asphalt mixing device for suppressing the scattering of stone materials on a drainage asphalt pavement according to claim 5 is characterized by: The nozzles (20) are arranged at equal distances on the surface of the square tube (19).

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