An adjustable asphalt mixture paving segregation control device

Abstract

The utility model discloses an adjustable asphalt mixture paving segregation control device, including stirring bin, the rotatory mounting of stirring bin has the stirring shaft, is installed a plurality of stirring bar on the stirring shaft, and stirring bar is driven by the motor of installation at one side of stirring bin, and the lower side of stirring bin is connected with cloth storehouse, and the rotatory mounting of cloth storehouse has cloth auger, and cloth auger is linked with stirring shaft through transmission, and one side of cloth storehouse is installed with fixed cover, and the recess is opened in fixed cover, and the recess is embedded with support strip, and the screw rod is worn on support strip, and the rotatory mounting of screw rod is installed on fixed cover, and the operating disc is installed on screw rod, and the pressing plate rotatory mounting of support strip has, and the both sides symmetrical installation of pressing plate has two stretchers, and the use of this application can mix asphalt before paving, and can scrape the flatness of asphalt when paving, and can adjust the scraping angle through the mode of adjusting the pressing plate angle.

Description

Technical Field

[0001] This utility model relates to the technical field of asphalt segregation control equipment, and in particular to an adjustable asphalt mixture paving segregation control device. Background Technology

[0002] During road paving, asphalt mixtures are prone to segregation due to the differences in physical properties between large-diameter aggregates, fine aggregates, and asphalt. Segregation leads to quality problems such as excessively high local porosity, uneven compaction, and concentration of coarse or fine aggregates in the paved surface, severely affecting the smoothness, durability, and service life of the road. In traditional equipment, asphalt segregation easily occurs during mixing due to uneven mixing of large and small aggregates. Furthermore, during placement, large-diameter aggregates, due to their high inertia and good flowability, easily roll to the outer end of the auger blades and the bottom of the pile, forming lateral and longitudinal segregation. If this segregation is not eliminated in time, it will significantly affect the paving quality. Although some pavers are equipped with simple scrapers, their height and angle are not adjustable, making them unsuitable for mixtures with different gradations, temperatures, and paving thicknesses, resulting in limited control effectiveness and poor versatility. Therefore, we propose an adjustable asphalt mixture paving segregation control device to solve the above problems. Utility Model Content

[0003] This invention provides an adjustable asphalt mixture paving segregation control device, which solves the problems of traditional segregation control devices that cannot fully mix the asphalt before paving, cannot smooth the paved asphalt, and cannot adjust the scraper angle according to different paving requirements.

[0004] This utility model provides an adjustable asphalt mixture paving segregation control device, including a mixing chamber, a mixing shaft rotatably installed inside the mixing chamber, several mixing rods mounted on the mixing shaft, the mixing rods being driven by a motor installed on one side of the mixing chamber, a material distribution chamber connected to the lower side of the mixing chamber, a material distribution auger rotatably installed inside the material distribution chamber, the material distribution auger being connected to the mixing shaft via a transmission device, a fixing cover installed on one side of the material distribution chamber, a groove being formed inside the fixing cover, a support strip being embedded in the groove, a screw threaded through the support strip, the screw being rotatably mounted on the fixing cover, an operating disc being mounted on the screw, a pressure plate being rotatably mounted on the support strip via a rotating shaft, and two tensioning devices symmetrically installed on both sides of the pressure plate.

[0005] Preferably, the transmission device includes a first roller connected to one end of the stirring shaft, the first roller being connected to a second roller via a belt, and the second roller being installed at one end of the fabric auger.

[0006] Preferably, the tensioning device includes an electric telescopic rod rotatably mounted on the side of the pressure plate, the other end of the electric telescopic rod being mounted on a fixed block, and the fixed block being rotatably mounted on the side of the support bar.

[0007] Preferably, a feed hopper is installed on the top of the mixing chamber.

[0008] Preferably, drive wheels are installed on both sides of the fabric bin, and dust covers are installed on the drive wheels.

[0009] Preferably, guide blocks are symmetrically installed at the bottom of the mixing chamber.

[0010] Preferably, the control panel is covered with anti-slip rubber.

[0011] Preferably, the pressure plate is made of high-strength, wear-resistant nylon.

[0012] As can be seen from the above technical solution, this utility model provides an adjustable asphalt mixture paving segregation control device. In use, the electric telescopic rod is first activated, causing the pressure plate to rotate around the rotating shaft, thereby adjusting the angle of the pressure plate. Then, the operating disc is turned, causing the screw to rotate, which in turn causes the support bar to move up and down along the groove, thus moving the pressure plate up and down until it reaches the predetermined height. At this point, operation begins. The asphalt mixture is fed from the feed hopper into the mixing chamber. The motor is started, causing the mixing shaft to rotate. The mixing shaft drives the first roller to rotate, and the first roller drives the second roller to rotate via a belt, which in turn drives the spreading auger to rotate and spread the mixture. Simultaneously, the mixing shaft drives the mixing rod to mix the asphalt. The mixed asphalt slowly slides down from the guide block into the spreading chamber and is spread by the spreading auger. After spreading, the asphalt mixture is leveled by the pressure plate, effectively preventing segregation.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. The asphalt can be mixed before paving by means of a mixing shaft and a mixing rod, which avoids asphalt segregation caused by uneven mixing of large and small aggregates. 2. The pressure plate can be used to smooth the paved surface, preventing coarse aggregate from rolling around and causing asphalt segregation during paving; 3. The angle of the pressure plate can be adjusted by the tensioning device, which can be adapted to asphalt mixtures with different grades and paving thicknesses, avoiding segregation of the paved asphalt and significantly increasing the adaptability of the equipment.

[0014] In summary, by using this application, asphalt can be stirred before paving to avoid segregation due to uneven mixing. It can also be scraped flat during paving to prevent segregation of large aggregate particles that have rolled over. In addition, the scraping angle can be adjusted by adjusting the angle of the pressure plate to adapt to different paving conditions. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of an adjustable asphalt mixture paving segregation control device proposed in this utility model. Figure 2 This is a cross-sectional view of an adjustable asphalt mixture paving segregation control device proposed in this utility model; Figure 3 This is a schematic diagram of the internal structure of the mixing bin and the placing bin of an adjustable asphalt mixture paving segregation control device proposed in this utility model. Figure 4 This is an enlarged view of point A of an adjustable asphalt mixture paving segregation control device proposed in this utility model.

[0017] In the diagram: 1. Mixing bin; 2. Mixing shaft; 3. Mixing rod; 4. Motor; 5. Material feeding bin; 6. Material feeding auger; 7. Fixing cover; 8. Groove; 9. Support bar; 10. Screw; 11. Control panel; 12. Pressure plate; 13. First roller; 14. Belt; 15. Second roller; 16. Electric telescopic rod; 17. Fixing block; 18. Feed hopper; 19. Drive wheel; 20. Dust cover; 21. Guide block; 22. Rotating shaft. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0019] See Figure 1-4An adjustable asphalt mixture paving segregation control device is applied in the field of asphalt segregation control equipment technology. It can mix the asphalt before paving and scrape the asphalt during paving. The scraping angle can be adjusted by adjusting the angle of the pressure plate. Specifically, the system includes a mixing chamber 1, within which a mixing shaft 2 is rotatably mounted. Several mixing rods 3 are mounted on the mixing shaft 2, rotating around the mixing shaft 2 and evenly distributed along its direction to prevent segregation. The mixing rods 3 are driven by a motor 4 installed on one side of the mixing chamber 1. During operation, the motor 4 is started, causing the mixing shaft 2 to rotate. Simultaneously, the mixing shaft 2 drives the mixing rods 3 to mix the asphalt. A distribution bin 5 is connected to the lower side of the mixing chamber 1. To prevent asphalt from falling directly from the mixing chamber 1 into the distribution bin 5, guide blocks 21 are symmetrically installed at the bottom of the mixing chamber 1, allowing the asphalt to slowly fall into the distribution bin 5. A distribution auger 6 is rotatably mounted inside the distribution bin 5, connected to the mixing shaft 2 via a transmission device. The distribution auger 6 distributes the asphalt. The structure of the distribution auger 6 is existing technology and will not be described further. A fixed cover 7 is installed on one side of the compartment 5. A groove 8 is opened inside the fixed cover 7, and a support strip 9 is embedded in the groove 8. A screw 10 passes through the support strip 9 and is rotatably mounted on the fixed cover 7. An operating plate 11 is installed on the screw 10. The operating plate 11 is covered with anti-slip rubber to prevent the operating plate 11 from slipping during operation. The support strip 9 is completely embedded in the groove 8 to prevent the support strip 9 from shaking when moving. A pressure plate 12 is rotatably mounted on the support strip 9 through a pivot 22. Two tensioning devices are symmetrically installed on both sides of the pressure plate 12. The tensioning devices can adjust the angle of the pressure plate. In use, first adjust the angle of the pressure plate 12 through the tensioning devices, and then turn the operating plate 11. The operating plate 11 drives the screw 10 to rotate, which drives the support strip 9 to move up and down along the groove 8, thereby adjusting the height of the pressure plate 12 until the pressure plate 12 is adjusted to a suitable height. This application allows for the mixing of asphalt before paving and the smoothing of the asphalt during paving, thus preventing asphalt segregation from multiple layers and significantly improving the quality of asphalt paving. Furthermore, this equipment can be used for paving operations with asphalt of different grades and paving thicknesses, making it highly versatile.

[0020] In this invention, the transmission device includes a first roller 13 connected to one end of the stirring shaft 2. The first roller 13 is connected to a second roller 15 via a belt 14. The second roller 15 is installed at one end of the fabric auger 6. In use, the motor 4 drives the stirring shaft 2 to rotate, which in turn drives the first roller 13 to rotate synchronously. The first roller 13 drives the second roller 15 to rotate via the belt 14, thereby driving the fabric auger 6 to rotate and spread the fabric. In use, it can ensure that only a single motor can drive the stirring shaft 2 and the fabric auger 6 to rotate simultaneously and start and stop at the same time, which significantly reduces hardware costs and improves the consistency and coordination of equipment operation.

[0021] In this utility model, the stretching device includes an electric telescopic rod 16 rotatably mounted on the side of the pressure plate 12. The electric telescopic rod 16 can be rotatably mounted on a round rod via a bearing. The other end of the electric telescopic rod 16 is mounted on a fixing block 17. The fixing block 17 is rotatably mounted on the side of the support bar 9. The fixing block 17 can fix the electric telescopic rod 16 and mount it on the round rod via a bearing. When in use, the electric telescopic rod 16 is started, and the electric telescopic rod 16 drives the pressure plate 12 to rotate along the rotating shaft 22, thereby adjusting the angle of the pressure plate 12.

[0022] In this invention, a feeding hopper 18 is installed on the top of the mixing chamber 1. The feeding hopper 18 is a long strip-shaped feeding hopper, and the length of the mixing chamber 1 is the same, so as to carry out uniform mixing and material distribution.

[0023] In this utility model, drive wheels 19 are installed on both sides of the fabric bin 5, and dust covers 20 are installed on the drive wheels 19. The drive wheels 19 can assist the equipment in moving, and the dust covers 20 can prevent the drive wheels 19 from being damaged during paving.

[0024] In this invention, the pressure plate 12 is made of high-strength wear-resistant nylon. High-strength wear-resistant nylon has a heat distortion temperature of up to 215℃, excellent thermal stability, and excellent wear resistance and low coefficient of friction, which can significantly improve the reliability of the pressure plate 12 during use.

[0025] As can be seen from the above technical solution, during use, the electric telescopic rod 16 is first started. The electric telescopic rod 16 drives the pressure plate 12 to rotate around the rotating shaft 22, thereby adjusting the angle of the pressure plate 12. Then, the operating disc 11 is turned, which drives the screw 10 to rotate, causing the support bar 9 to move up and down along the groove 8, and then driving the pressure plate 12 to move up and down until the pressure plate 12 reaches the predetermined height. At this time, the operation begins. The asphalt mixture is fed into the mixing chamber 1 from the feed hopper 18. The motor 4 is started, and the motor 4 drives the mixing shaft 2 to rotate. The mixing shaft 2 drives the first roller 13 to rotate. The first roller 13 drives the second roller 15 to rotate through the belt 14, which in turn drives the feeding auger 6 to rotate and feed the asphalt. At the same time, the mixing shaft 2 drives the mixing rod 3 to mix the asphalt. The mixed asphalt slowly slides down from the guide block 21 into the feeding chamber 5 and is fed by the feeding auger 6. The asphalt mixture after feeding is scraped by the pressure plate 12, which can effectively prevent segregation.

[0026] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of the invention is indicated by the claims.

[0027] It should be understood that this utility model is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model.

Claims

1. An adjustable asphalt mixture paving segregation control device, comprising a mixing bin (1), characterized in that: A stirring shaft (2) is rotatably installed inside the stirring chamber (1). Several stirring rods (3) are installed on the stirring shaft (2). The stirring rods (3) are driven by a motor (4) installed on one side of the stirring chamber (1). A fabric feeding chamber (5) is connected to the lower side of the stirring chamber (1). A fabric feeding auger (6) is rotatably installed inside the fabric feeding chamber (5). The fabric feeding auger (6) is connected to the stirring shaft (2) through a transmission device. A fixing cover (7) is installed on one side of the fabric feeding chamber (5). A groove (8) is opened inside the fixing cover (7). A support strip (9) is embedded in the groove (8). A screw (10) passes through the support strip (9). The screw (10) is rotatably installed on the fixing cover (7). An operating disc (11) is installed on the screw (10). A pressure plate (12) is rotatably installed on the support strip (9) through a rotating shaft (22). Two tensioning devices are symmetrically installed on both sides of the pressure plate (12).

2. The adjustable asphalt mixture paving segregation control device according to claim 1, characterized in that, The transmission device includes a first roller (13) connected to one end of the stirring shaft (2), the first roller (13) being connected to a second roller (15) via a belt (14), and the second roller (15) being installed at one end of the fabric auger (6).

3. The adjustable asphalt mixture paving segregation control device according to claim 1, characterized in that, The tensioning device includes an electric telescopic rod (16) rotatably mounted on the side of the pressure plate (12), the other end of the electric telescopic rod (16) being mounted on a fixing block (17), and the fixing block (17) being rotatably mounted on the side of the support bar (9).

4. The adjustable asphalt mixture paving segregation control device according to claim 1, characterized in that, The mixing chamber (1) is equipped with a feed hopper (18) on top.

5. The adjustable asphalt mixture paving segregation control device according to claim 1, characterized in that, Drive wheels (19) are installed on both sides of the fabric bin (5), and dust covers (20) are installed on the drive wheels (19).

6. The adjustable asphalt mixture paving segregation control device according to claim 4, characterized in that, The bottom of the mixing chamber (1) is symmetrically equipped with guide blocks (21).

7. The adjustable asphalt mixture paving segregation control device according to claim 1, characterized in that, The operating panel (11) is covered with anti-slip rubber.

8. The adjustable asphalt mixture paving segregation control device according to claim 1, characterized in that, The pressure plate (12) is made of high-strength wear-resistant nylon.

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