Hot rolling equipment for asphalt pavement construction
Through multiple rolling cylinder structures and hydraulically driven displacement control, the problem of low construction efficiency caused by obstacles is solved, and efficient asphalt pavement construction is achieved.
Patent Information
- Application Number
- CN202422556639.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-10-23
AI Technical Summary
During the construction of existing asphalt pavements, the roller cylinder cannot be smoothed due to obstacles formed by impurities, which reduces the construction efficiency.
A multiple roller cylinder structure is adopted, one of which is driven by the hydraulic cylinder and controlled by the spring and displacement sensor to achieve effective pressure on obstacles, and the other roller cylinder further rolls to improve construction efficiency.
The quality and efficiency of asphalt pavement construction are improved, the cost increase caused by multiple back and forth rolling is avoided, and the continuity and effectiveness of construction is ensured.
Smart Images
Figure CN223061401U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of asphalt pavement construction, and particularly relates to a hot rolling equipment for asphalt pavement construction. Background Art
[0002] When laying an asphalt road, first, a transport vehicle is used to transport asphalt to the site, and then it is manually or automatically fed onto the road to be laid. Then, a rolling vehicle behind rolls the asphalt pavement. The rolling vehicle has a very heavy rolling cylinder. The pavement is rolled by the self-weight of the rolling cylinder. Since there are often large stones and other impurities in the asphalt, when the device encounters obstacles formed by such impurities, a single rolling cylinder cannot smoothly flatten the obstacles, thus reducing the rolling efficiency. Content of the Utility Model
[0003] In view of this, the purpose of the utility model is to provide a hot rolling equipment for asphalt pavement construction, which can improve the construction efficiency of the road by adopting multiple rolling cylinders.
[0004] To achieve the above purpose, the utility model provides the following technical solutions:
[0005] The hot rolling equipment for asphalt pavement construction of the utility model includes a rolling vehicle body, a first rolling support hinged to the tail end of the rolling vehicle body, and a first rolling cylinder rotatably matched with the first rolling support. The first rolling support is simultaneously connected with a second rolling support, and a second rolling cylinder is rotatably matched on the second rolling support. The axis of the second rolling cylinder is parallel to the axis of the first rolling cylinder. A hydraulic cylinder is installed on the first rolling support, and the output end of the hydraulic cylinder is connected with the second rolling support. The hydraulic cylinder can drive the second rolling cylinder to displace towards the ground side.
[0006] Further, a support plate is fixed at the tail end of the rolling vehicle body. A guide groove is formed on the support plate. A guide rod is fixed on the first rolling support. The upper end of the guide rod is slidably arranged in the guide groove. A spring is sleeved outside the guide rod. Two ends of the spring are respectively abutted against the support plate and the first rolling support.
[0007] Further, a limiting member is installed at the upper end of the guide rod, and the limiting member is located above the support plate.
[0008] Further, a displacement sensor is connected between the support plate and the first rolling support. The displacement sensor and the hydraulic cylinder are both electrically connected with a controller. When the displacement sensor detects that the displacement of the first rolling support reaches a threshold value, the controller controls the hydraulic cylinder to extend a certain length.
[0009] Further, a hollow shaft is provided at the center of the first rolling cylinder. The hollow shaft is communicated with the inner cavity of the first rolling cylinder. The first rolling support includes a rectangular frame. Rotating supports cooperating with the hollow shaft are provided at both ends of the rectangular frame. A stop block is fixed inside the rectangular frame, and an arc groove cooperating with the outer surface of the first rolling cylinder is formed inside the stop block.
[0010] Further, the middle part of the rectangular frame is connected by rib beams, and the hydraulic cylinder is installed on one of the rib beams.
[0011] Further, one end of the hollow shaft is connected with a hot air pipe through a rotating joint. The hot air pipe is connected with a hot air supply device, and the hot air supply device is installed on the rolling vehicle body.
[0012] The beneficial effects of the present utility model are as follows:
[0013] The hot rolling equipment for asphalt pavement construction disclosed by the present utility model can further roll the pavement rolled by the first rolling cylinder by arranging an additional second rolling cylinder, avoiding the problem of increased cost caused by the rolling equipment rolling back and forth multiple times, and ensuring the construction quality and efficiency.
[0014] In the equipment disclosed by the present utility model, the hydraulic cylinder can be arranged to drive the second rolling cylinder to displace towards the side where the ground is located, so that the rolling pressure of the second rolling cylinder can be adjusted according to actual needs, and the construction efficiency is improved.
[0015] Other advantages, objectives and features of the present utility model will be described in the subsequent description, and to some extent will be obvious to those skilled in the art, or those skilled in the art can be taught from the practice of the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to make the objectives, technical solutions and beneficial effects of the present utility model clearer, the following drawings are provided by the present utility model for illustration:
[0017] Figure 1 is a structural schematic diagram of the rolling equipment of the present utility model;
[0018] Figure 2 is a side view of the rolling equipment of the present utility model;
[0019] Figure 3 is a structural schematic diagram of the support plate.
[0020] The markings in the attached drawings are as follows: rolling vehicle body 1, first rolling support 2, first rolling cylinder 3, second rolling support 4, second rolling cylinder 5, hydraulic cylinder 6, support plate 7, guide groove 8, guide rod 9, spring 10, limiting member 11, displacement sensor 12, hollow shaft 13, rectangular frame 14, rotating support 15, stop block 16, rib beam 17. Detailed implementation mode
[0021] As Figures 1 to 3 shown, the hot rolling equipment for asphalt pavement construction of the present utility model includes a rolling vehicle body 1, a first rolling support 2 hinged to the tail end of the rolling vehicle body 1, and a first rolling cylinder 3 rotatably engaged with the first rolling support 2. The rolling vehicle body 1 adopts an existing device and can tow the first rolling support 2 to move longitudinally along the road. The first rolling cylinder 3 can roll the asphalt under the action of gravity, thereby ensuring the construction quality of the road.
[0022] Among them, the first rolling support 2 is simultaneously connected with a second rolling support 4. The structure of the second rolling support 4 is the same as that of the first rolling support 2 but slightly smaller in size. A second rolling cylinder 5 is rotatably engaged on the second rolling support 4. The structure of the second rolling cylinder 5 is the same as that of the first rolling cylinder 3. The axis of the second rolling cylinder 5 is parallel to the axis of the first rolling cylinder 3. A hydraulic cylinder 6 is installed on the first rolling support 2. The hydraulic cylinder 6 is electrically controlled. The output end of the hydraulic cylinder 6 is connected with the second rolling support 4. The hydraulic cylinder 6 can drive the second rolling cylinder 5 to displace towards the side where the ground is located.
[0023] By arranging an additional second rolling cylinder 5 in the device of the present utility model, the road surface rolled by the first rolling cylinder 3 can be further rolled, avoiding the problem of increased cost caused by the rolling equipment rolling back and forth multiple times, and ensuring the construction quality and efficiency.
[0024] In this embodiment, a support plate 7 is fixed at the tail end of the rolling vehicle body 1. The support plate 7 extends obliquely upward. A guide groove 8 is formed on the support plate 7. A guide rod 9 is fixed on the first rolling support 2. The width of the guide groove 8 is adapted to the width of the guide rod 9. The upper end of the guide rod 9 is slidably arranged in the guide groove 8. A spring 10 is sleeved outside the guide rod 9. The two ends of the spring 10 are respectively abutted against the support plate 7 and the first rolling support 2. By arranging the spring 10, an elastic support effect can be achieved on the first rolling support 2 and the first rolling cylinder 3.
[0025] In this embodiment, a limiting member 11 is installed at the upper end of the guide rod 9. The limiting member 11 is located above the support plate 7 to prevent the guide rod 9 from disengaging from the guide groove 8 and increase the structural stability.
[0026] In this embodiment, a displacement sensor 12 is connected between the support plate 7 and the first rolling bracket 2. The displacement sensor 12 and the hydraulic cylinder 6 are both electrically connected to a controller. When the displacement sensor 12 detects that the displacement of the first rolling bracket 2 reaches a threshold value, the controller controls the hydraulic cylinder 6 to extend a certain length. When the pressure is relatively high, it proves that the first rolling bracket 2 bounces severely. At this time, it should be that the first rolling cylinder 3 passes over a relatively large obstacle. At this time, increasing the hydraulic cylinder 6 can increase the rolling pressure of the second rolling cylinder 5, further ensuring that the obstacle can be pressed into the asphalt pavement and improving the construction quality.
[0027] In this embodiment, a hollow shaft 13 is arranged at the center of the first rolling cylinder 3. The hollow shaft 13 communicates with the inner cavity of the first rolling cylinder 3. The first rolling bracket 2 includes a rectangular frame 14. Rotating supports that cooperate with the hollow shaft 13 are arranged at both ends of the rectangular frame 14. A stop block 16 is fixed inside the rectangular frame 14. An arc groove that cooperates with the outer surface of the first rolling cylinder 3 is formed inside the stop block 16. The middle part of the rectangular frame 14 is connected by a rib beam 17, which increases the connection strength of the structure. The hydraulic cylinder 6 is installed on one of the rib beams 17, which can achieve a compact decoupling.
[0028] In this embodiment, one end of the hollow shaft 13 is connected with a hot air pipe through a rotating joint. The hot air pipe is connected with a hot air supply device, and the hot air supply device is installed on the rolling vehicle body 1. By arranging the hot air pipe, the inside of the first rolling cylinder 3 can be heated to realize hot pressing, further ensuring the construction quality.
[0029] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.
Claims
1. A hot rolling equipment for asphalt pavement construction, comprising a rolling vehicle body, a first rolling bracket hinged to the tail end of the rolling vehicle body, and a first rolling cylinder rotatably matched with the first rolling bracket, characterized in that: The first rolling support is simultaneously connected to a second rolling support, a second rolling cylinder is rotatably fitted on the second rolling support, the axis of the second rolling cylinder is parallel to the axis of the first rolling cylinder, a hydraulic cylinder is installed on the first rolling support, the output end of the hydraulic cylinder is connected to the second rolling support, and the hydraulic cylinder can drive the second rolling cylinder to displace towards the side where the ground is located.
2. The hot rolling equipment for asphalt pavement construction according to claim 1, characterized in that: A support plate is fixed at the tail end of the rolling vehicle body, a guiding groove is formed in the support plate, a guide rod is fixed on the first rolling support, the upper end of the guide rod is slidably arranged in the guiding groove, a spring is sleeved outside the guide rod, and two ends of the spring are respectively abutted against the support plate and the first rolling support.
3. The hot rolling equipment for asphalt pavement construction according to claim 2, characterized in that: A limiting member is installed at the upper end of the guide rod, and the limiting member is located above the support plate.
4. The hot rolling equipment for asphalt pavement construction according to claim 3, characterized in that: A displacement sensor is connected between the support plate and the first rolling support, the displacement sensor and the hydraulic cylinder are simultaneously electrically connected to a controller, and when the displacement sensor detects that the displacement of the first rolling support reaches a threshold value, the controller controls the hydraulic cylinder to extend a certain length.
5. The hot rolling equipment for asphalt pavement construction according to any one of claims 1-4, characterized in that: A hollow shaft is arranged at the center of the first rolling cylinder, the hollow shaft is communicated with the inner cavity of the first rolling cylinder, the first rolling support includes a rectangular frame, rotating supports matched with the hollow shaft are arranged at both ends of the rectangular frame, a stop block is fixed inside the rectangular frame, and an arc groove matched with the outer surface of the first rolling cylinder is formed inside the stop block.
6. The hot rolling equipment for asphalt pavement construction according to claim 5, characterized in that: The middle part of the rectangular frame is connected by rib beams, and the hydraulic cylinder is installed on one of the rib beams.
7. The hot rolling equipment for asphalt pavement construction according to claim 5, characterized in that: One end of the hollow shaft is connected to a hot air pipe through a rotary joint, the hot air pipe is connected to a hot air supply device, and the hot air supply device is installed on the rolling vehicle body.