Hot rolling device for asphalt highway construction

Abstract

A hot rolling device for asphalt highway construction relates to the technical field of highways and comprises a mounting frame, a hot rolling roller is mounted on the mounting frame and comprises a roller outer ring, end plates are arranged on two sides of the roller outer ring, a central through hole is formed in the middle of each end plate, a central shaft is inserted into the central through hole, and the central shaft is inserted into the roller outer ring. A connecting ring is rotationally connected to the center shaft and fixedly connected to the end plate through a locking bolt. The utility model not only ensures that the contact part of the roller outer ring and the ground has no gap and no asphalt penetration gap, but also realizes the convenient disassembly of the roller outer ring and the central shaft, thereby greatly improving the maintenance efficiency. And through the sliding design of the left bearing seat and the fastening mode of the adjusting bolt, the flexibility and convenience of the hot rolling roller in the mounting and dismounting process are further improved, and the construction efficiency and maintenance convenience are remarkably improved through the overall design.

Description

Technical Field

[0001] The utility model relates to the technical field of highways, and more specifically, to a hot rolling device for asphalt highway construction. Background Art

[0002] During the construction process of asphalt pavement laying, in order to ensure that the pavement reaches the expected flatness and durability, it is usually necessary to use a special hot rolling device to fully roll the heated asphalt laid on the road. This step is crucial for improving the overall quality of the asphalt pavement and extending its service life.

[0003] Chinese Patent CN 214939015 U discloses a hot rolling device, which adopts a structural form in which a first semi-cylinder and a second semi-cylinder are joined together. However, in the actual application process, this design has obvious defects. Specifically, when the device rolls the asphalt, due to the high temperature and fluidity of the asphalt, part of the asphalt is likely to penetrate into the inside of the cylinder. This will not only have an adverse impact on the electromagnetic heating coil inside the cylinder, such as reducing the heating efficiency and increasing the risk of coil damage, but also make it difficult to disassemble the cylinder in the subsequent use process, thereby affecting the maintenance and service life of the device. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems raised in the above background art, and then a hot rolling device for asphalt highway construction is proposed.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A hot rolling device for asphalt highway construction, including a mounting frame, on which a hot rolling drum is mounted. The hot rolling drum includes a drum outer ring, end plates are provided on both sides of the drum outer ring, a central through hole is formed in the middle of the end plate, a central shaft is inserted into the central through hole, a connecting ring is rotatably connected to the central shaft, and the connecting ring is fixedly connected to the end plate through a locking bolt.

[0007] Furthermore, an electromagnetic heating coil is provided on the central shaft.

[0008] Furthermore, positioning rings are provided on both sides of the central shaft.

[0009] Furthermore, an installation hole for the central shaft to pass through is formed in the middle of the connecting ring.

[0010] Furthermore, positioning through holes for the locking bolts to pass through are provided on the connecting ring.

[0011] Furthermore, the mounting frame includes a top plate, side plates are provided on both sides of the top plate, a left plate and a right plate are respectively provided on the two side plates, a left bearing seat and a right bearing seat are respectively provided on the left plate and the right plate, and a hot rolling roller is installed between the left bearing seat and the right bearing seat.

[0012] Furthermore, the left bearing seat can be slidably fitted along the left plate and fixed by tightening with an adjusting bolt.

[0013] Furthermore, a sliding groove is formed in the left plate, and a left supporting seat is slidably fitted in the sliding groove. A sealing plate is provided on the side of the sliding groove away from the side plate, and a threaded hole is provided on the sealing plate, and an adjusting bolt is threadedly connected in the threaded hole.

[0014] Furthermore, the adjusting bolt can abut against the surface of the left supporting seat to limit the movement of the left supporting seat along the sliding groove.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model not only ensures that there is no gap between the outer ring of the roller and the ground, and no gap for asphalt penetration, but also realizes the convenient disassembly of the outer ring of the roller and the central axis, greatly improving the maintenance efficiency. The sliding design of the left bearing seat and the tightening method of the adjusting bolt further enhance the flexibility and convenience of the hot rolling roller during installation and disassembly, and the overall design significantly improves the construction efficiency and maintenance convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0018] Figure 3 It is a structural schematic diagram of the sliding cavity;

[0019] Among them: 1 mounting frame, 11 top plate, 12 side plate, 13 left plate, 131 adjusting bolt, 132 sliding groove, 14 right plate, 21 left bearing seat, 22 right bearing seat, 3 hot rolling roller, 31 roller outer ring, 32 end plate, 321 center through hole, 33 center shaft, 34 connecting ring, 341 mounting hole, 342 positioning through hole, 36 electromagnetic heating coil, 37 positioning ring. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. The present utility model will be further described in conjunction with the accompanying drawings and embodiments:

[0021] As Figures 1-3 shown, a hot rolling device for asphalt road construction includes a mounting frame 1, and a hot rolling drum 3 is mounted on the mounting frame. The hot rolling drum 3 includes a drum outer ring 31, which is in direct contact with the ground during construction and plays a role in compacting the asphalt pavement. End plates 32 are provided on both sides of the drum outer ring. These end plates not only enhance the structural strength of the drum outer ring but also provide stable support for its connection with the central shaft 33. A central through hole 321 is formed in the middle of the end plate, and a central shaft 33 is inserted into the central through hole. A connecting ring 34 is rotatably connected to the central shaft, and the connecting ring is fixedly connected to the end plate through a locking bolt 35.

[0022] This design ensures that there are no gaps or voids in the part of the drum outer ring in contact with the ground, thus effectively preventing the penetration and accumulation of asphalt. At the same time, when it is necessary to disassemble or replace the drum outer ring, simply disassembling the locking bolt can easily complete the separation of the drum outer ring from the central shaft, greatly improving the convenience of maintenance.

[0023] Further, an electromagnetic heating coil 36 is provided on the central shaft, which enables the hot rolling drum to be heated when needed to adapt to different construction conditions and requirements.

[0024] To ensure the stability and accuracy of the connecting ring during installation, positioning rings 37 are provided on both sides of the central shaft, which provide precise installation positioning for the connecting ring.

[0025] Further, an installation hole 341 for the central shaft to pass through is formed in the middle of the connecting ring.

[0026] Further, a positioning through hole 342 for the locking bolt to pass through is provided on the connecting ring.

[0027] In at least one embodiment, the mounting frame includes a top plate 11, side plates 12 are provided on both sides of the top plate, a left plate 13 and a right plate 14 are respectively provided on the two side plates, left bearing seats 21 and right bearing seats 22 are respectively provided on the left plate and the right plate, and a hot rolling drum 3 is mounted between the left bearing seat and the right bearing seat.

[0028] In at least one embodiment, the left bearing seat can slide along the left plate and is fixed by tightening the adjusting bolt 131.

[0029] Furthermore, as Figure 3 shown, a sliding groove 132 is formed in the left plate, a left support seat is slidably fitted in the sliding groove, a sealing plate is provided on the side of the sliding groove away from the side plate, a threaded hole is provided on the sealing plate, and the adjusting bolt 131 is threadedly connected in the threaded hole.

[0030] Specifically, the adjusting bolt can abut against the surface of the left support seat to limit the movement of the left support seat along the sliding groove.

[0031] This design can quickly disassemble the hot rolling drum. Only need to rotate the adjusting bolt, then pull the left bearing seat, so that the support sleeve in the left support seat is disengaged from the left end of the central shaft on the hot rolling drum, and then slightly adjust the hot rolling drum to the left, so that the right end of the central shaft on the hot rolling drum is disengaged from the right bearing seat, then the disassembly work of the hot rolling drum can be completed.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present invention. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot rolling device for asphalt road construction, characterized in that: It comprises a mounting frame, on which a hot rolling roller is mounted, the hot rolling roller comprises a roller outer ring, end plates are arranged on both sides of the roller outer ring, a central through hole is formed in the middle of the end plate, a central shaft is inserted in the central through hole, a connecting ring is rotatably connected to the central shaft, and the connecting ring is fixed to the end plate by a locking bolt.

2. The hot rolling device for asphalt road construction according to claim 1, characterized in that: Positioning rings are arranged on both sides of the central axis.

3. The hot rolling device for asphalt road construction according to claim 2, characterized in that: A mounting hole for accommodating the central shaft to pass through is formed in the middle of the connecting ring.

4. The hot rolling device for asphalt road construction according to claim 2, characterized in that: The connecting ring is provided with a positioning through hole for accommodating the locking bolt to pass through.

5. The hot rolling device for asphalt road construction according to any one of claims 1 to 4, characterized in that: The mounting frame includes a top plate, side plates are provided on both sides of the top plate, a left plate and a right plate are respectively provided on the two side plates, a left bearing seat and a right bearing seat are respectively provided on the left plate and the right plate, and a hot rolling roller is installed between the left bearing seat and the right bearing seat.

6. The hot rolling device for asphalt road construction according to claim 5, characterized in that: The left bearing seat can be slidably fitted along the left plate and can be tightened and fixed by adjusting bolts.

7. The hot rolling device for asphalt road construction according to claim 6, characterized in that: A sliding groove is formed in the left plate, and a left supporting seat is slidably fitted in the sliding groove. A blocking plate is provided on the side of the sliding groove away from the side plate, and a threaded hole is provided on the blocking plate. An adjusting bolt is threadedly connected in the threaded hole.

8. The hot rolling device for asphalt road construction according to claim 7, characterized in that: The adjusting bolt can abut against the surface of the left supporting seat to limit the movement of the left supporting seat along the sliding groove.

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