A road surface preventive maintenance spreading device

Abstract

This utility model discloses a road surface preventive maintenance spreading device, including a support frame, a support shaft rotatably connected to the surface of the support frame, an inner centrifugal cylinder fixedly connected to the top of the support shaft, an outer centrifugal cylinder rotatably connected to the outer wall of the inner centrifugal cylinder, a fixing frame fixedly connected to the side wall of the support frame, and the outer centrifugal cylinder located inside the fixing frame. This utility model utilizes the inner and outer centrifugal cylinders to centrifuge the mixture for maintenance in opposite directions after it is added, and finally spreads it out in a fan shape from the opening of the fixing frame. This achieves multi-stage centrifugal dispersion of the mixture, improves the spreading uniformity and coverage, and effectively avoids the accumulation or gap problems caused by traditional single-stage spreading.

Description

Technical Field

[0001] This utility model relates to the field of road maintenance technology, specifically to a road preventive maintenance spreading device. Background Technology

[0002] Asphalt pavement is the main structural form of high-grade highways, and its maintenance needs are becoming increasingly prominent. Traditional pavement maintenance models are mostly based on "passive repair," that is, major repairs or reconstructions are carried out after structural damage occurs, resulting in high maintenance costs, long cycles, and serious waste of resources. In recent years, the concept of preventive maintenance has gradually gained attention in the industry, using spreading equipment to pave asphalt mixtures to meet large-scale maintenance needs.

[0003] Current preventative road surface spreading equipment may suffer from uneven distribution and a small coverage area, resulting in gaps or overlaps in the road surface coverage and severely affecting the uniformity of maintenance. Therefore, a new technical solution is proposed to address this issue. Utility Model Content

[0004] The purpose of this utility model is to provide a road surface preventive maintenance spreading device, which solves the problem mentioned in the background art that the current road surface preventive maintenance spreading equipment may have uneven distribution during operation, and the range is small, resulting in gaps or stacking of road surface coverage, which seriously affects the uniformity of maintenance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a road surface preventive maintenance spreading device, comprising a support frame, a support shaft rotatably connected to the surface of the support frame, an inner centrifuge cylinder fixedly connected to the top end of the support shaft, an outer centrifuge cylinder rotatably connected to the outer side wall of the inner centrifuge cylinder, a fixing frame fixedly connected to the side wall of the support frame, and the outer centrifuge cylinder located inside the fixing frame.

[0006] In this technical solution, the mixture undergoes centrifugation in opposite directions within the inner and outer centrifuge cylinders, and is finally spread out in a fan shape from the opening of the fixed frame. This achieves multi-stage centrifugal dispersion of the mixture, improving the uniformity and coverage of the spreading, and effectively avoiding the accumulation or gap problems caused by traditional single-stage spreading.

[0007] Preferably, a connecting frame is fixedly connected to the bottom of the outer centrifuge cylinder, a collar is fixedly connected to the center of the connecting frame, a second bevel gear is fixedly connected to the bottom of the collar, and the support shaft passes through the center of the collar and the second bevel gear.

[0008] Preferably, a first bevel gear is fixedly connected to the surface of the support column below the second bevel gear. The first and second bevel gears mesh with the driving bevel gear simultaneously. The driving bevel gear is fixedly connected to one end of the transmission rod, and the other end of the transmission rod is rotatably connected to the side wall of the support frame. A servo motor is fixedly connected to the other side surface of the support frame corresponding to the horizontal height of the transmission rod. The tail end of the transmission shaft of the servo motor is connected to the support frame.

[0009] Preferably, the top of the support frame is provided with a mounting groove, an electric push rod is fixedly connected to the inner side of the mounting groove, the top of the electric push rod is fixedly connected to one end of the lifting frame, and a top cover is fixedly connected to the other end of the lifting frame.

[0010] Preferably, a vertical rod is fixedly connected to the bottom center of the top cover, a stirring rod is fixedly connected to the side wall of the vertical rod, and a scraper is fixedly connected to one end of the stirring rod facing the inner side wall of the inner centrifuge cylinder.

[0011] Preferably, a conical cylinder is fixedly connected to the top of the inner centrifuge cylinder, and a plurality of equidistant material holes are opened on the surface of both the inner and outer centrifuge cylinders.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses an inner centrifuge cylinder and an outer centrifuge cylinder. After the mixture for curing is added, it is centrifuged in opposite directions by the inner and outer centrifuge cylinders. Finally, it is spread out in a fan shape from the opening of the fixed frame. This realizes multi-stage centrifugal dispersion of the mixture, improves the uniformity of spreading and the coverage area, and effectively avoids the problems of accumulation or gaps caused by traditional single-stage spreading.

[0014] 2. This utility model provides a vertical rod on the inner side of the inner centrifuge cylinder. When the inner centrifuge cylinder rotates, the mixing structure stirring rod stirs the mixture, and at the same time, the scraper scrapes the mixture on the inner wall of the inner centrifuge cylinder, reducing adhesion and allowing the mixture to pass through the material hole as much as possible, reducing waste and improving utilization efficiency. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is an overall view of the present invention;

[0017] Figure 2 This is a schematic diagram of the outer centrifuge cylinder structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the inner centrifuge cylinder structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the support frame structure of this utility model;

[0020] Figure 5 This is a cross-sectional structural diagram of the present invention.

[0021] In the diagram: 1. Support frame; 2. Support shaft; 201. First bevel gear; 3. Inner centrifuge cylinder; 4. Conical cylinder; 5. Outer centrifuge cylinder; 6. Material hole; 7. Connecting frame; 701. Collar; 702. Second bevel gear; 8. Fixing frame; 9. Transmission rod; 901. Active bevel gear; 902. Servo motor; 10. Mounting slot; 11. Electric actuator; 12. Lifting frame; 13. Top cover; 14. Vertical rod; 15. Stirring rod; 151. Scraper. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description will further elaborate on them in conjunction with specific embodiments.

[0023] A road surface preventative maintenance spreading device, see [link to documentation] Figures 1 to 5 The system includes a support frame 1, a support shaft 2 rotatably connected to the surface of the support frame 1, an inner centrifuge cylinder 3 fixedly connected to the top of the support shaft 2, and the support shaft 2 can rotate the inner centrifuge cylinder 3. A conical cylinder 4 is fixedly connected to the top of the inner centrifuge cylinder 3, and an outer centrifuge cylinder 5 is rotatably connected to the outer wall of the inner centrifuge cylinder 3. A fixing frame 8 is fixedly connected to the side wall of the support frame 1, and the outer centrifuge cylinder 5 is located inside the fixing frame 8. The surfaces of both the inner centrifuge cylinder 3 and the outer centrifuge cylinder 5 are provided with several equidistant material holes 6. Before spreading, the asphalt mixture for curing is poured into the inner side of the inner centrifuge cylinder 3 along the conical cylinder 4. Then, the inner centrifuge cylinder 3 and the outer centrifuge cylinder 5 begin to rotate, and the inner centrifuge cylinder 3 and the outer centrifuge cylinder 5 rotate in opposite directions. The mixture is centrifuged during rotation and, after passing through the material holes 6 of the inner centrifuge cylinder 3 and the outer centrifuge cylinder 5, it is spread out in a fan shape from the opening of the fixing frame 8. Multiple centrifugations achieve multi-stage dispersion of the mixture, improving the uniformity of spreading.

[0024] Specifically, such as Figure 2 and Figure 5 As shown, a connecting frame 7 is fixedly connected to the bottom of the outer centrifuge cylinder 5, and a collar 701 is fixedly connected to the center of the connecting frame 7. A second bevel gear 702 is fixedly connected to the bottom of the collar 701. The support shaft 2 passes through the center of the collar 701 and the second bevel gear 702. The support shaft 2 drives the inner centrifuge cylinder 3 to rotate, while the outer centrifuge cylinder 5 does not directly contact the support shaft 2, so it will not rotate with the inner centrifuge cylinder 3 in the same direction and speed.

[0025] Furthermore, such as Figure 4 and Figure 5As shown, a first bevel gear 201 is fixedly connected to the surface of the support column below the second bevel gear 702. Both the first bevel gear 201 and the second bevel gear 702 mesh with the driving bevel gear 901. The driving bevel gear 901 is fixedly connected to one end of the transmission rod 9, and the other end of the transmission rod 9 is rotatably connected to the side wall of the support frame 1. A servo motor 902 is fixedly connected to the other side surface of the support frame 1 at the horizontal height of the transmission rod 9. The tail end of the transmission shaft of the servo motor 902 is connected to the support frame 1. Upon pouring in the mixture, the servo motor 902 starts, driving the transmission rod 9 and the active bevel gear 901 to rotate. The main bevel gear then drives the first bevel gear 201 and the second gear to rotate. The first bevel gear 201 drives the support shaft 2 and the inner centrifuge cylinder 3 to rotate, while the second bevel gear 702 drives the connecting frame 7 and the outer centrifuge cylinder 5 to rotate. The inner centrifuge cylinder 3 and the outer centrifuge cylinder 5 rotate in opposite directions, thus centrifuging the mixture in different directions, making the mixture more uniform during mixing.

[0026] It is worth noting that, such as Figure 5 As shown, the top of the support frame 1 is provided with an installation groove 10. An electric push rod 11 is fixedly connected to the inner side of the installation groove 10. The top of the electric push rod 11 is fixedly connected to one end of the lifting frame 12. The other end of the lifting frame 12 is fixedly connected to a top cover 13. After the mixture is added, in order to avoid the mixture being thrown out in large quantities due to centrifugation, a top cover 13 is provided above the conical cylinder 4. Before the material is poured in, the electric push rod 11 extends, driving the lifting frame 12 and the top cover 13 to rise, so that the opening of the conical cylinder 4 is exposed. After the material is added, the electric push rod 11 starts to retract, driving the top cover 13 to descend, blocking the top of the conical cylinder 4, and preventing a large amount of material from being swept out. It should be noted that there is a small gap between the top cover 13 and the conical cylinder 4, so as not to affect the normal rotation of the conical cylinder 4.

[0027] It is worth noting that, such as Figure 4 and Figure 5 As shown, a vertical rod 14 is fixedly connected to the center of the bottom of the top cover 13. A stirring rod 15 is fixedly connected to the side wall of the vertical rod 14, and a scraper 151 is fixedly connected to the end of the stirring rod 15 facing the inner side wall of the inner centrifuge cylinder 3. When the inner centrifuge cylinder 3 rotates, the vertical rod 14 and the stirring rod 15 at the bottom of the top cover 13 will enter the inner centrifuge cylinder 3, thereby stirring the rotating mixture and turning the mixture over, thereby improving the uniformity of the mixture. The scraper 151 can scrape the mixture, reduce adhesion, and allow the mixture to pass through the material hole 6 as much as possible.

[0028] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

Claims

1. A road surface preventive maintenance spreading device, comprising a support frame (1), characterized in that: The support frame (1) is rotatably connected to a support shaft (2), the top end of the support shaft (2) is fixedly connected to an inner centrifuge cylinder (3), the outer side wall of the inner centrifuge cylinder (3) is rotatably connected to an outer centrifuge cylinder (5), the side wall of the support frame (1) is fixedly connected to a fixing frame (8), and the outer centrifuge cylinder (5) is located inside the fixing frame (8).

2. The road surface preventive maintenance spreading device according to claim 1, characterized in that: The bottom of the outer centrifuge tube (5) is fixedly connected to a connecting frame (7), and a collar (701) is fixedly connected to the center of the connecting frame (7). A second bevel gear (702) is fixedly connected to the bottom of the collar (701). The support shaft (2) passes through the center of the collar (701) and the second bevel gear (702).

3. The road surface preventive maintenance spreading device according to claim 2, characterized in that: A first bevel gear (201) is fixedly connected to the surface of the support column below the second bevel gear (702). The first bevel gear (201) and the second bevel gear (702) mesh with the active bevel gear (901) at the same time. The active bevel gear (901) is fixedly connected to one end of the transmission rod (9). The other end of the transmission rod (9) is rotatably connected to the side wall of the support frame (1). A servo motor (902) is fixedly connected to the other side surface of the support frame (1) corresponding to the horizontal height of the transmission rod (9). The tail end of the transmission shaft of the servo motor (902) is connected to the support frame (1) in a transmission connection.

4. The road surface preventive maintenance spreading device according to claim 1, characterized in that: The top of the support frame (1) is provided with an installation groove (10), and an electric push rod (11) is fixedly connected to the inner side of the installation groove (10). The top of the electric push rod (11) is fixedly connected to one end of the lifting frame (12), and the other end of the lifting frame (12) is fixedly connected to a top cover (13).

5. A road surface preventive maintenance spreading device according to claim 4, characterized in that: A vertical rod (14) is fixedly connected to the bottom center of the top cover (13), and a stirring rod (15) is fixedly connected to the side wall of the vertical rod (14), and a scraper (151) is fixedly connected to one end of the stirring rod (15) facing the inner side wall of the inner centrifuge cylinder (3).

6. The road surface preventive maintenance spreading device according to claim 1, characterized in that: The top of the inner centrifuge tube (3) is fixedly connected to a conical tube (4), and the surfaces of the inner centrifuge tube (3) and the outer centrifuge tube (5) are provided with several equidistant material holes (6).

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