Rotary compaction instrument for asphalt mixture

Abstract

The utility model relates to the technical field of asphalt mixture rotary compactors, and discloses an asphalt mixture rotary compactor which comprises a bottom plate, a spinning instrument is mounted at the top of the bottom plate, a mounting disc is fixedly connected to the top of the spinning instrument, a fixing frame is fixedly connected to the top of the mounting disc, and the fixing frame is fixedly connected to the bottom of the bottom plate. A fixing mechanism is arranged in the fixing frame, and a cleaning mechanism is arranged at the top of the fixing mechanism; the fixing mechanism comprises a driving assembly, the rear side of the driving assembly is installed in the fixing frame, a sliding plate is fixedly connected to the front side of the driving assembly, and fixing shafts are fixedly connected to the left side and the right side of the sliding plate. In the spinning process, displacement of the die sleeve is avoided through stable clamping of the clamping ring, a stable foundation is provided for the rotary main shaft of the spinning instrument to drive the pressing head to accurately compact the asphalt mixture, and the spinning stability and the accuracy of experimental data are guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of rotary compactors for asphalt mixtures, and in particular to a rotary compactor for asphalt mixtures. Background Technology

[0002] The rotary compactor for asphalt mixtures is a specialized piece of equipment used for asphalt pavement construction and research. It simulates the compaction process at the construction site to rotary compact asphalt mixtures to determine their optimal compaction state and related performance indicators. The instrument mainly consists of a rotary compactor host, a control system, and a data acquisition system. During operation, a certain amount of asphalt mixture is placed into a mold, and then the rotary compactor host applies vertical pressure to the mold and rotates it around an axis. Under the combined action of rotation and pressure, the mixture is gradually compacted.

[0003] A search revealed Chinese Patent Publication No. CN220893907U, which discloses a stepwise rotary compaction device for asphalt mixtures. The device includes an asphalt mixture rotary compactor and a demolding assembly. The rotary compactor comprises a rotating machine and a demolding machine respectively mounted on its upper sides, and a mold sleeve installed on the upper end of the rotating machine. The demolding assembly includes a groove recessed at the rear end of the rotary compactor. In this stepwise rotary compaction device, the asphalt mixture compacted by a compaction cylinder within the mold sleeve on the rotating machine can be automatically moved to the upper end of the demolding machine on the other side via a pusher driven by an electric push rod, and height and position positioning rods that control the height and position of the pusher. This achieves automatic demolding of the asphalt mixture after compaction, improving demolding convenience, saving on the transfer process during demolding with the rotary compactor, and accelerating operational efficiency.

[0004] Although the aforementioned patent mentions in its beneficial effects that "in this utility model, the asphalt mixture compacted by the compaction cylinder in the upper mold sleeve of the rotary machine can be automatically moved to the upper end of the demolding machine on the other side by a pusher driven by an electric push rod, and a height positioning rod and a position positioning rod that position the pusher for raising and lowering the height and moving position, thereby realizing automatic demolding of the asphalt mixture after compaction, improving its demolding convenience, saving the transfer process in the demolding of the asphalt mixture rotary compactor, and speeding up the operation efficiency," it cannot achieve the fixation of the mold sleeve, which leads to instability of the mold sleeve during the spinning process and poor spinning effect. At the same time, it cannot achieve effective cleaning of the pressure head, which leads to the model not forming a solid shape during the next spinning. Therefore, in order to address the above shortcomings, an asphalt mixture rotary compactor is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an asphalt mixture rotary compactor, which aims to improve the problem that the angle of the solar panel is fixed in the prior art, making it inconvenient to adjust the angle according to the needs of external sunlight conditions.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an asphalt mixture rotary compactor, comprising a base plate, a rotary compactor mounted on the top of the base plate, an installation plate fixedly connected to the top of the rotary compactor, a fixing frame fixedly connected to the top of the installation plate, a fixing mechanism provided inside the fixing frame, and a cleaning mechanism provided on the top of the fixing mechanism.

[0007] The fixing mechanism includes a drive assembly, the rear of which is installed inside the fixing frame. A sliding plate is fixedly connected to the front of the drive assembly. Fixed shafts are fixedly connected to both sides of the sliding plate. Rotating rods are rotatably connected to the outside of the two fixed shafts. Sliding rods are rotatably connected to the front of the two rotating rods. Limiting plates are fixedly connected to the bottom of the two sliding rods. Clamping rings are fixedly connected to the top of the two sliding rods. A chassis is fixedly connected inside the fixing frame.

[0008] Through the above technical solution: when the drive component operates, it will drive the front sliding plate to move. The fixed shafts on both sides of the sliding plate will move with it. Since the fixed shafts are rotatably connected to the rotating rod, the movement of the fixed shaft will cause the rotating rod to rotate. The rotating rod will then drive the sliding rod to slide within the fixed frame. The limiting plate at the bottom of the sliding rod will prevent it from falling out. The clamping ring at the top will stably clamp the mold placed on the chassis under the drive of the sliding rod, providing a solid foundation for subsequent spinning operations and ensuring the smooth conduct of spinning experiments.

[0009] As a further description of the above technical solution:

[0010] The drive assembly includes a cylinder, the rear side of which is mounted inside the fixed frame, and a push rod is fixedly connected to the output end of the cylinder.

[0011] The above technical solution works as follows: when the cylinder starts, the piston inside the cylinder moves, the piston rod extends or retracts, and thus drives the push rod to make linear displacement motion.

[0012] As a further description of the above technical solution:

[0013] The cleaning mechanism includes two vertical rods, the bottom of which is fixedly connected to the top of the sliding plate. A horizontal rod is fixedly connected to the front of the two vertical rods, and a fixed fan ring is fixedly connected to the front of the two horizontal rods. Multiple sliding rods are slidably connected inside the fixed fan ring, and springs are sleeved on the outside of each sliding rod. A limit plate is fixedly connected to the bottom of each sliding rod, and a brush fan ring is fixedly connected to the top of the multiple sliding rods. Multiple brush bristles are fixedly connected to the top of the brush fan ring.

[0014] Through the above technical solution: when the sliding plate moves, the vertical rod moves accordingly. The front of the vertical rod is connected to the horizontal rod, which in turn is connected to the fixed fan ring. Therefore, the movement of the vertical rod causes the horizontal rod and the fixed fan ring to move together, so that the fixed fan ring slides to the bottom of the pressure head. The sliding rod inside the fixed fan ring can slide in it. One end of the spring sleeved on its outside is connected to the fixed fan ring, and the other end is connected to the brush fan ring. The limiting plate at the bottom of the sliding rod prevents it from falling out. During the movement of the fixed fan ring, the elasticity of the spring pushes the brush fan ring, so that the bristles at its top are in close contact with the pressure head. As the fixed fan ring slides, the bristles wipe and clean the bottom of the pressure head, effectively removing the asphalt mixture remaining on the pressure head after spinning, ensuring that the pressure head is clean and ready for the next spinning operation.

[0015] As a further description of the above technical solution:

[0016] A fixing plate is fixedly connected inside the fixing frame. Sliding grooves are provided on both the left and right sides inside the fixing plate. Two sliding grooves are provided on the rear side inside the fixing plate. A mold sleeve is provided on the top of the chassis. A pressure head is provided on the top side inside the fixing frame.

[0017] Through the above technical solution: when the fixing mechanism is running, the sliding rod can move smoothly in the sliding groove, driving the clamping ring to achieve the clamping and releasing action of the mold sleeve; the two sliding grooves opened on the rear side of the fixing plate provide a path for the displacement of the vertical rod. When the cleaning mechanism is operating, the sliding plate drives the vertical rod to move in the sliding groove, thereby realizing the cleaning operation of the pressure head.

[0018] As a further description of the above technical solution:

[0019] A support plate is fixedly connected to the front side of the fixed frame, a top cover is provided on the top of the fixed frame, and a controller is provided on the right side of the fixed frame.

[0020] Through the above technical solution: the support plate provides convenience for operators to place tools or experimental materials; when the top cover is closed, it can effectively prevent dust and debris from entering the equipment and prevent them from affecting the normal operation of the equipment; the controller is the core of the equipment's operation, and the microprocessor, driver and other electronic components integrated inside work through circuit signal transmission during operation; the operator sets parameters such as the spinning speed and time of the spinning machine through the controller, controls the cylinder action, and realizes the clamping of the mold sleeve and the operation of the cleaning mechanism.

[0021] As a further description of the above technical solution:

[0022] The sliding rod is slidably connected to the inside of the groove, and the inner wall of the clamping ring is in contact with the outside of the mold sleeve.

[0023] The above technical solution works as follows: when the drive component of the fixed mechanism operates, it drives the sliding plate to move, thereby displacing the fixed shaft. Through the transmission of the rotating rod, the sliding rod slides smoothly along the track of the slide groove.

[0024] As a further description of the above technical solution:

[0025] The outside of the vertical rod is slidably connected to the inside of the sliding groove, and the top of the bristles is in contact with the bottom of the pressure head.

[0026] With the above technical solution: when the cylinder drives the sliding plate to move, the vertical rod fixedly connected to the top of the sliding plate will be displaced along the track of the sliding groove. The movement of the vertical rod is transmitted through the horizontal rod, which drives the fixed fan ring, the brush fan ring and the brush bristles to move synchronously.

[0027] As a further description of the above technical solution:

[0028] One end of the spring is fixedly connected to the bottom of the brush fan ring, and the other end of the spring is fixedly connected to the top of the fixed fan ring.

[0029] Through the above technical solution: when the cleaning mechanism is running, the fixed fan ring slides to the bottom of the pressure head under the action of the crossbar, and the sliding rod slides inside the fixed fan ring. Since the two ends of the spring are connected to the brush fan ring and the fixed fan ring respectively, the movement of the fixed fan ring causes the spring to expand and contract. When the spring is extended, it generates elastic force, which pushes the brush fan ring to move upward, so that the bristles are tightly attached to the bottom of the pressure head, increasing the friction between the bristles and the bottom of the pressure head.

[0030] This utility model has the following beneficial effects:

[0031] 1. In this utility model, the cylinder receives a command from the controller, its piston rod extends, and drives the push rod to move. The displacement of the push rod is transmitted to the sliding plate, and the fixed shafts on both sides of the sliding plate move accordingly. Since the fixed shaft and the rotating rod are rotatably connected, the displacement of the fixed shaft drives the rotating rod to rotate around the connection point. The rotating rod then drives the sliding rod to slide in the groove of the fixed plate. The clamping ring approaches the mold sleeve under the drive of the sliding rod, and its inner wall fits tightly with the mold sleeve, realizing a firm clamping of the mold sleeve. During the spinning process, the stable clamping of the clamping ring avoids the displacement of the mold sleeve, providing a stable foundation for the rotating spindle of the spinning instrument to drive the pressure head to accurately compact the asphalt mixture, ensuring the stability of spinning and the accuracy of experimental data.

[0032] 2. In this utility model, after the spinning operation is completed and the mold sleeve is removed, the cylinder is restarted. The cylinder drives the sliding plate to move, and the vertical rod connected to the sliding plate slides in the sliding groove on the back side of the fixed plate. The movement of the vertical rod drives the horizontal rod, which in turn causes the fixed fan ring to slide to the bottom of the pressure head. During the cleaning process, the sliding rod slides in the fixed fan ring, and the elastic force of the spring makes the brush bristles in close contact with the bottom of the pressure head, increasing the friction between the two, thereby effectively removing the residual asphalt mixture at the bottom of the pressure head and ensuring the cleanliness of the pressure head. This not only helps to extend the service life of the pressure head, but also ensures that the next spinning is not affected by residual materials, improving the accuracy and reliability of the experiment. Attached Figure Description

[0033] Figure 1 This is a perspective view of an asphalt mixture rotary compactor proposed in this utility model;

[0034] Figure 2 This is a schematic diagram of the bearing plate structure of an asphalt mixture rotary compactor proposed in this utility model;

[0035] Figure 3 This is a schematic diagram of the fixed frame structure of an asphalt mixture rotary compactor proposed in this utility model;

[0036] Figure 4 This is a schematic diagram of the fixing plate structure of an asphalt mixture rotary compactor proposed in this utility model;

[0037] Figure 5 This is a schematic diagram of the clamping ring structure of an asphalt mixture rotary compactor proposed in this utility model;

[0038] Figure 6 for Figure 4 Enlarged view of point A in the middle.

[0039] Legend:

[0040] 1. Base plate; 2. Spinning machine; 3. Mounting plate; 4. Fixing frame; 5. Fixing mechanism; 51. Drive assembly; 5101. Cylinder; 5102. Push rod; 52. Sliding plate; 53. Fixed shaft; 54. Rotating rod; 55. Sliding rod; 56. Limiting plate; 57. Clamping ring; 58. Fixing plate; 59. Slide groove; 510. Chassis; 511. Mold sleeve; 512. Press head; 6. Cleaning mechanism; 61. Vertical rod; 62. Sliding groove; 63. Horizontal rod; 64. Fixing fan ring; 65. Sliding rod; 66. Spring; 67. Limiting plate; 68. Brush fan ring; 69. Brush bristles; 7. Bearing plate; 8. Top cover; 9. Controller. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Reference Figure 1 , Figure 3 and Figure 5 This utility model provides an embodiment of an asphalt mixture rotary compactor, comprising a base plate 1, which serves as the basic support structure for the entire asphalt mixture rotary compactor. A spinning device 2 is mounted on top of the base plate 1. The spinning device 2 is the core component of the compactor, integrating a drive motor, a speed control device, and a rotating spindle. The drive motor provides power for the spinning process, and the speed control device adjusts the rotational speed of the rotating spindle according to different asphalt mixture characteristics and experimental requirements, thereby achieving precise compaction of the asphalt mixture. A mounting plate 3 is fixedly connected to the top of the spinning device 2, and a fixing frame 4 is fixedly connected to the top of the mounting plate 3. 4 is the housing frame of the entire internal structure of the equipment. The fixed frame 4 is equipped with a fixing mechanism 5. The top of the fixing mechanism 5 is equipped with a cleaning mechanism 6. The front side of the fixed frame 4 is fixedly connected to a bearing plate 7. The top of the fixed frame 4 is equipped with a top cover 8. The top cover 8 is installed on the top of the fixed frame 4 to protect the internal structure of the equipment and prevent dust and debris from entering the equipment and affecting its normal operation. The right side of the fixed frame 4 is equipped with a controller 9. The operator can set the working parameters of the spinning machine 2, such as speed and time, through the controller 9, and at the same time control the action of the cylinder 5101 to realize the clamping of the mold sleeve 511 and the operation of the cleaning mechanism 6.

[0043] The fixing mechanism 5 includes a drive assembly 51, which is the driving source for the clamping action of the fixing mechanism 5. The rear side of the drive assembly 51 is installed inside the fixing frame 4. The drive assembly 51 includes a cylinder 5101, the rear side of which is also installed inside the fixing frame 4. When it is necessary to clamp the mold sleeve 511, the controller 9 issues a command, the piston rod of the cylinder 5101 extends, and drives the push rod 5102 to move forward, thereby providing power for the subsequent clamping action. The output end of the cylinder 5101 is fixedly connected to the push rod 5102. The front side of the drive assembly 51 is fixedly connected to a sliding plate 52. When the push rod 5102 is displaced under the drive of the cylinder 5101, The sliding plate 52 moves accordingly. Fixed shafts 53 are fixedly connected to both the left and right sides of the sliding plate 52. Rotating rods 54 are rotatably connected to the outside of the two fixed shafts 53. When the sliding plate 52 moves, the fixed shafts 53 move accordingly. Due to their rotatable connection with the rotating rods 54, the displacement of the fixed shafts 53 will cause the rotating rods 54 to rotate around the connection point. Sliding rods 55 are rotatably connected to the front of the two rotating rods 54. When the rotating rods 54 rotate under the drive of the fixed shafts 53, the sliding rods 55 slide along the direction of the groove 59 under the action of the rotating rods 54, thereby causing the clamping ring 57 to move closer to or away from the mold sleeve 511, realizing the clamping and releasing action of the mold sleeve 511.

[0044] Both sliding rods 55 are fixedly connected to the bottom of a limiting plate 56. The limiting plate 56 prevents the sliding rod 55 from coming out of the slide groove 59 during sliding. Both sliding rods 55 are fixedly connected to the top of a clamping ring 57. When the sliding rod 55 slides in the slide groove 59, the clamping ring 57 moves accordingly to clamp and fix the mold sleeve 511. A fixing plate 58 is fixedly connected inside the fixing frame 4. Slide grooves 59 are opened on both the left and right sides inside the fixing plate 58. The sliding rod 55 is slidably connected to the inside of the slide groove 59. The slide groove 59 provides a track for the sliding rod 55 to slide. Two sliding grooves 62 are opened on the rear side inside the fixing plate 58. When the sliding plate... When the cylinder 5101 drives the vertical rod 61 to slide in the sliding groove 62, the bottom of the fixed frame 4 is fixedly connected to the chassis 510. During the spinning process, the chassis 510 can bear the weight of the mold sleeve 511 and the asphalt mixture, as well as the pressure applied by the pressure head 512, to ensure the smooth progress of the spinning operation. The top of the chassis 510 is provided with the mold sleeve 511, which is used to hold the asphalt mixture. The inner wall of the clamping ring 57 is in contact with the outside of the mold sleeve 511. The top of the fixed frame 4 is provided with the pressure head 512. During the spinning process, the pressure head 512 performs a spinning operation on the asphalt mixture in the mold sleeve 511 under the drive of the spinning instrument 2.

[0045] Specifically, when the mold sleeve 511 needs to be clamped, the controller 9 commands the piston rod of the cylinder 5101 to extend, driving the push rod 5102, which in turn causes the sliding plate 52 to move. The fixed shafts 53 on both sides of the sliding plate 52 move accordingly. Because they are rotatably connected to the rotating rod 54, they drive the rotating rod 54 to rotate around a point. The rotating rod 54 then causes the sliding rod 55 to slide along the sliding groove 59 on the fixed plate 58. The clamping ring 57 at the top of the sliding rod 55 moves closer to or away from the mold sleeve 511 to achieve clamping and release. The bottom limiting plate 56 prevents the sliding rod 55 from coming out. The bottom plate 510 inside the fixed frame 4 bears the pressure of the mold sleeve 511, the asphalt mixture, and the pressure head 512. The pressure head 512 spins the mixture inside the mold sleeve 511 under the drive of the spinning device 2.

[0046] Reference Figure 2 , Figure 4 and Figure 6 The cleaning mechanism 6 includes two vertical rods 61, the bottom of which are fixedly connected to the top of the sliding plate 52. When the sliding plate 52 is displaced by the cylinder 5101, the vertical rods 61 slide within the sliding groove 62. The outside of the vertical rods 61 is slidably connected to the inside of the sliding groove 62. A horizontal rod 63 is fixedly connected to the front of the two vertical rods 61. When the vertical rods 61 slide within the sliding groove 62, the horizontal rod 63 moves accordingly. A fixed fan ring 64 is fixedly connected to the front of the two horizontal rods 63. The fixed fan ring 64 slides at the bottom of the pressure head 512 driven by the horizontal rods 63. Multiple sliding rods 65 are slidably connected inside the fixed fan ring 64. During the cleaning process, the sliding rods 65 slide within the fixed fan ring 64. Through the elastic force of the spring 66, the bristles 69 maintain close contact with the bottom of the pressure head 512, improving the cleaning effect. The outside of the multiple sliding rods 65 is fitted with... A spring 66 is provided, with one end of the spring 66 fixedly connected to the bottom of the brush fan ring 68 and the other end of the spring 66 fixedly connected to the top of the fixed fan ring 64. During the cleaning process, the spring 66 increases the friction between the bristles 69 and the bottom of the pressure head 512 through its own elasticity, so that the bristles 69 can more effectively remove the residual asphalt mixture at the bottom of the pressure head 512. The bottom of the two sliding rods 65 is fixedly connected to the limit plate 67. The function of the limit plate 67 is to prevent the sliding rods 65 from coming out of the fixed fan ring 64. The top of the multiple sliding rods 65 is fixedly connected to the brush fan ring 68, and the top of the brush fan ring 68 is fixedly connected to the multiple bristles 69. The top of the bristles 69 is in contact with the bottom of the pressure head 512. During the cleaning process, under the action of the spring 66, the brush fan ring 68 makes the bristles 69 in close contact with the bottom of the pressure head 512, thereby cleaning the bottom of the pressure head 512.

[0047] Specifically, when the cylinder 5101 moves the sliding plate 52, the vertical rod 61 slides in the sliding groove 62 behind the fixed plate 58. The horizontal rod 63 connected to the front of the vertical rod 61 moves with the vertical rod 61, thereby driving the fixed fan ring 64 to slide at the bottom of the pressure head 512. The sliding rod 65 inside the fixed fan ring 64 can slide in it. The spring 66 sleeved on the outside is connected at one end to the bottom of the brush fan ring 68 and at the other end to the top of the fixed fan ring 64. During cleaning, the elasticity of the spring 66 makes the bristles 69 at the top of the brush fan ring 68 contact the bottom of the pressure head 512 tightly, increasing the friction. The limiting plate 67 at the bottom of the sliding rod 65 prevents it from falling out, thereby effectively removing the asphalt mixture remaining at the bottom of the pressure head 512, achieving cleaning of the pressure head 512, and ensuring that the subsequent spinning operation is not affected by residual materials.

[0048] Working principle: When using this rotary compactor for asphalt mixture, the mold sleeve 511 can first be placed inside the fixed plate 58 and on the top of the chassis 510. Then, the cylinder 5101 can be started to drive the push rod 5102 to move, which in turn drives the sliding plate 52 to move. At this time, with the movement of the sliding plate 52, the fixed shaft 53 can be moved. Then, the rotation between the fixed shaft 53 and the rotating rod 54 can cause the rotating rod 54 to move. Then, the rotation between the rotating rod 54 and the sliding rod 55 can cause the sliding rod 55 to slide inside the groove 59, which can drive the clamping ring 57 to move. At this time, the clamping ring 57 can be used to clamp and fix the mold sleeve 511, thus ensuring the stability of the clamping ring 57 during the rotary compaction process.

[0049] During the spinning process, the mold sleeve 511 can be removed, and then the cylinder 5101 can be restarted, which will cause the sliding plate 52 to move. As the sliding plate 52 moves, the vertical rod 61 will move, which in turn will cause the horizontal rod 63 to move. This will cause the fixed fan ring 64 to slide at the bottom of the pressure head 512. At this time, the brush bristles 69 can be used to clean the pressure head 512. At the same time, the elasticity of the spring 66 increases the friction between the brush bristles 69 and the bottom of the pressure head 512, which can greatly improve the cleaning effect and ensure the cleanliness of the pressure head 512 so that the next spinning will not be affected.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary compactor for asphalt mixtures, comprising a base plate (1), characterized in that: A spinning press (2) is installed on the top of the base plate (1). A mounting plate (3) is fixedly connected to the top of the spinning press (2). A fixing frame (4) is fixedly connected to the top of the mounting plate (3). A fixing mechanism (5) is provided inside the fixing frame (4). A cleaning mechanism (6) is provided on the top of the fixing mechanism (5). The fixing mechanism (5) includes a drive assembly (51), the rear side of which is installed inside the fixing frame (4). A sliding plate (52) is fixedly connected to the front side of the drive assembly (51). Fixed shafts (53) are fixedly connected to both the left and right sides of the sliding plate (52). Rotating rods (54) are rotatably connected to the outside of the two fixed shafts (53). Sliding rods (55) are rotatably connected to the front side of the two rotating rods (54). Limiting disks (56) are fixedly connected to the bottom of the two sliding rods (55). Clamping rings (57) are fixedly connected to the top of the two sliding rods (55). A chassis (510) is fixedly connected inside the fixing frame (4).

2. The rotary compactor for asphalt mixtures according to claim 1, characterized in that: The drive assembly (51) includes a cylinder (5101), the rear side of which is installed inside the fixed frame (4), and a push rod (5102) is fixedly connected to the output end of the cylinder (5101).

3. The rotary compactor for asphalt mixtures according to claim 1, characterized in that: The cleaning mechanism (6) includes two vertical rods (61), the bottom of the two vertical rods (61) is fixedly connected to the top of the sliding plate (52), the front side of the two vertical rods (61) is fixedly connected to a horizontal rod (63), the front side of the two horizontal rods (63) is fixedly connected to a fixed fan ring (64), the inside of the fixed fan ring (64) is slidably connected to a plurality of sliding rods (65), the outside of the plurality of sliding rods (65) is fitted with a spring (66), the bottom of the two sliding rods (65) is fixedly connected to a limit plate (67), the top of the plurality of sliding rods (65) is fixedly connected to a brush fan ring (68), and the top of the brush fan ring (68) is fixedly connected to a plurality of brush bristles (69).

4. The rotary compactor for asphalt mixtures according to claim 3, characterized in that: The fixed frame (4) is fixedly connected to a fixed plate (58). The fixed plate (58) has sliding grooves (59) on both the left and right sides. The fixed plate (58) has two sliding grooves (62) on the rear side. The top of the chassis (510) is provided with a mold sleeve (511). The top side of the fixed frame (4) is provided with a pressure head (512).

5. The rotary compactor for asphalt mixtures according to claim 1, characterized in that: A bearing plate (7) is fixedly connected to the front side of the fixed frame (4), a top cover (8) is provided on the top of the fixed frame (4), and a controller (9) is provided on the right side of the fixed frame (4).

6. The rotary compactor for asphalt mixtures according to claim 4, characterized in that: The outer side of the sliding rod (55) is slidably connected to the inside of the groove (59), and the inner wall of the clamping ring (57) is in contact with the outer side of the mold sleeve (511).

7. The rotary compactor for asphalt mixtures according to claim 4, characterized in that: The outside of the vertical rod (61) is slidably connected to the inside of the sliding groove (62), and the top of the bristles (69) is in contact with the bottom of the pressure head (512).

8. The rotary compactor for asphalt mixtures according to claim 3, characterized in that: One end of the spring (66) is fixedly connected to the bottom of the brush fan ring (68), and the other end of the spring (66) is fixedly connected to the top of the fixed fan ring (64).

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