Compaction device for leveling highway roadbed

Abstract

The utility model relates to the technical field of roadbed construction, and particularly discloses a compaction device for leveling a highway roadbed, which comprises an equipment main body and a road rolling wheel structure arranged on one side of the equipment main body, the mounting structure is mounted on one side of the road rolling wheel structure, and the auxiliary leveling structure is arranged at the bottom of the mounting structure and used for leveling before road rolling; wherein the mounting structure comprises a mounting box and a swing rod arranged in the mounting box, and the top end of the swing rod is rotationally connected with the mounting box through a rotating shaft; the fixed rod and the movable rod at the bottom of the base plate horizontally reciprocate along with the base plate, the movable rod can dynamically adapt to uneven hardness or tiny fluctuation of the surface of a roadbed due to the arrangement of the spring piece, the leveling uniformity is ensured, the leveling operation is synchronously completed in the advancing process of the road rolling wheel structure, the leveled roadbed is rolled by the rear road rolling structure, and the leveling efficiency is improved. The surface of a roadbed is scraped and raked actively before the road rolling wheel structure rolls, loose filler is flattened in advance and evenly distributed, and the filler is prevented from being accumulated in front of equipment.

Description

Technical Field

[0001] This utility model relates to the field of roadbed construction technology, specifically to a compaction device for leveling highway roadbeds. Background Technology

[0002] Highway subgrade construction is a crucial foundational project for highway development. After the subgrade base treatment and filling are completed, compaction is required. This compaction process reduces the voids between soil particles, increases density, and thus improves the overall strength and stability of the subgrade, enabling it to withstand vehicle loads from the road surface and the effects of natural factors.

[0003] The existing patent publication number CN219824816U discloses a roadbed compactor, which includes a road roller body, a load-bearing frame, a lifting and adjusting frame, and a protective cover. The road roller body is fixedly connected to the load-bearing frame by bolts. A roadbed compaction roller is rotatably connected to the middle position of the inner wall of the load-bearing frame. Mounting brackets are fixedly installed on both sides of the inner wall of the load-bearing frame. The mounting brackets on both sides are connected to a debris removal scraper by bolts. The lifting and adjusting frame is fixedly installed on the outer wall of the load-bearing frame. The protective cover can pry away hard objects such as stones.

[0004] The aforementioned roadbed compaction machine uses a scraper to clean the roadbed during the compaction process. However, in actual use, the roadbed has already undergone preliminary construction treatment, and hard objects such as stones have been uniformly removed. The aforementioned compaction machine directly impacts and levels the roadbed using a protective cover, lacking an active pre-leveling function. This results in the continuous accumulation of filler material in front, affecting continuous operation and reducing efficiency. To address these issues, a compaction device for highway roadbed leveling is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a compaction device for leveling highway subgrade, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A compaction device for highway subgrade leveling includes a main body and a roller structure installed on one side of the main body; an installation structure is installed on one side of the roller structure, and an auxiliary leveling structure is provided at the bottom of the installation structure for leveling before compaction;

[0008] The installation structure includes a mounting box and a swing rod disposed inside the mounting box. The top end of the swing rod is rotatably connected to the mounting box via a rotating shaft. A driving component for driving the swing rod to swing back and forth is installed on the mounting box. A docking shaft is connected to one side of the bottom end of the swing rod.

[0009] The auxiliary leveling structure includes a base plate and a fixed rod installed at the bottom of the base plate. A movable rod is also connected to the base plate by a spring. A connecting strip that slides with the mounting box is connected to the top of the base plate. A strip rod is connected to the top of the connecting strip. The bottom end of the mating shaft slides in the strip hole inside the strip rod.

[0010] In one alternative embodiment: the roller structure includes a frame mounted on one side of the main body of the equipment, on which rollers are mounted. The mounting structure is located on the side of the frame away from the main body of the equipment. Several positioning plates are connected to both sides of the frame, and positioning bolts are connected to the positioning plates. The mounting box is provided with positioning holes corresponding to the positioning bolts.

[0011] In one alternative embodiment: the driving component includes a driving disk and an eccentric rod connected to the eccentric part of the driving disk. The driving disk is disposed in a mounting box. The swing rod is provided with an elongated hole for sliding of the eccentric rod. A driving box is mounted on the mounting box, and a driving motor for driving the driving disk to rotate is installed in the driving box.

[0012] In one alternative: the bottom of the mounting box is provided with sliding holes for the connecting strip to slide, the top of the connecting strip is connected to a sliding plate, the bottom of the inner cavity of the mounting box is connected to a slide rail, and the top two sides of the sliding plate slide in cooperation with the slide rail.

[0013] In one alternative: both the fixed rod and the moving rod are provided in two sets, with the two sets of fixed rods placed between the two sets of moving rods, the length of the fixed rod being less than the length of the moving rod, and the base plate having through holes for the moving rod to pass through.

[0014] In one alternative embodiment: the spring component includes a limiting plate connected to the top end of the moving rod, a spring sleeved on the moving rod is provided between the limiting plate and the base plate, the top end of the spring is fixedly connected to the limiting plate, and the bottom end of the spring is fixedly connected to the base plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, the fixed rod and the movable rod at the bottom of the base plate reciprocate horizontally with the base plate. The spring component allows the movable rod to dynamically adapt to unevenness or slight undulations on the roadbed surface, ensuring uniform leveling. The leveling operation is completed simultaneously with the movement of the roller structure. The leveled roadbed is then compacted by the roller structure behind it. Before the roller structure compacts the roadbed, the roadbed surface is actively scraped and raked to spread loose filler evenly and prevent filler from accumulating in front of the equipment. The front actively levels the roadbed and the rear immediately compacts it, eliminating the need to stop the machine to deal with filler accumulation and improving the continuity of construction.

[0017] In this invention, the fixed rod and the moving rod work together to improve the leveling accuracy. The cutting depth can be automatically adjusted according to the undulations of the roadbed to avoid excessive damage to the existing structure, while also improving adaptability to complex terrain. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the installation structure and auxiliary leveling structure in this utility model.

[0020] Figure 3 This is a schematic diagram of the internal structure of the mounting box in this utility model.

[0021] Figure 4 This is a partial structural schematic diagram of the present invention.

[0022] Figure 5 This is a schematic diagram of the drive component and the swing rod in this utility model.

[0023] In the diagram: 1. Main body of the equipment; 2. Roller structure; 21. Frame; 22. Roller; 23. Positioning plate; 3. Installation structure; 31. Mounting box; 32. Drive box; 33. Drive disc; 34. Eccentric rod; 35. Swing rod; 36. Sliding hole; 37. Slide rail; 351. Rotating shaft; 352. Long strip hole; 353. Connecting shaft; 4. Auxiliary leveling structure; 41. Base plate; 42. Fixed rod; 43. Moving rod; 44. Limiting plate; 45. Spring; 46. Connecting strip; 47. Slide plate; 48. Strip rod; 49. Perforation. Detailed Implementation

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] 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.

[0026] Please see Figures 1-5In this embodiment, the compaction device for leveling highway subgrade includes a main body 1 and a roller structure 2 installed on one side of the main body 1; an installation structure 3 is installed on one side of the roller structure 2, and an auxiliary leveling structure 4 is provided at the bottom of the installation structure 3 for leveling before compaction;

[0027] The installation structure 3 includes an installation box 31 and a swing rod 35 disposed in the installation box 31. The top end of the swing rod 35 is rotatably connected to the installation box 31 via a rotating shaft 351. A driving component for driving the swing rod 35 to swing back and forth is installed on the installation box 31. A docking shaft 353 is connected to one side of the bottom end of the swing rod 35.

[0028] The auxiliary leveling structure 4 includes a base plate 41 and a fixed rod 42 installed at the bottom of the base plate 41. A movable rod 43 is also connected to the base plate 41 by a spring. A connecting strip 46 that slides with the mounting box 31 is connected to the top of the base plate 41. A strip rod 48 is connected to the top of the connecting strip 46. The bottom end of the docking shaft 353 slides in the strip hole in the strip rod 48.

[0029] Using the above scheme, as the device moves forward, the driving component drives the swing rod 35 to swing back and forth, the docking shaft 353 slides in the strip hole of the strip rod 48, the connecting strip 46 drives the base plate 41 to move back and forth laterally, the fixed rod 42 and the moving rod 43 at the bottom of the base plate 41 move back and forth horizontally with the base plate 41, the spring component allows the moving rod 43 to dynamically adapt to the unevenness or slight undulation of the roadbed surface, ensuring the leveling uniformity, the leveling operation is completed synchronously during the movement of the roller structure 2, and the leveled roadbed is then rolled by the roller structure 2 behind.

[0030] Please see 1 and Figure 2 The roller structure 2 includes a frame 21 installed on one side of the equipment body 1, a roller 22 installed on the frame 21, and an installation structure 3 located on the side of the frame 21 away from the equipment body 1. Several positioning plates 23 are connected to both sides of the frame 21, and positioning bolts are connected to the positioning plates 23. The mounting box 31 is provided with positioning holes corresponding to the positioning bolts.

[0031] Specifically, the mounting box 31 is flexibly fixed to the frame 21 by positioning bolts. In actual use, the use of the mounting structure 3 can be selected according to the needs, or the installation position of the mounting structure 3 can be adjusted.

[0032] Please see Figure 3 and Figure 5The driving component includes a driving disk 33 and an eccentric rod 34 connected to the eccentric part of the driving disk 33. The driving disk 33 is disposed in the mounting box 31. The swing rod 35 is provided with an elongated hole 352 for sliding of the eccentric rod 34. The mounting box 31 is mounted on the driving box 32, and a drive motor for driving the driving disk 33 to rotate is installed in the driving box 32.

[0033] Specifically, after the drive motor starts, the drive disk 33 rotates, and the rotational motion is converted into the reciprocating swing of the swing rod 35 by the eccentric rod 34 fixed at the eccentric position of the drive disk 33 and embedded in the elongated hole 352 of the swing rod 35.

[0034] Please see Figure 3 and Figure 4 The bottom of the mounting box 31 is provided with a sliding hole 36 for the sliding of the connecting strip 46. The top of the connecting strip 46 is connected to a sliding plate 47. The bottom of the inner cavity of the mounting box 31 is connected to a slide rail 37. The top two sides of the sliding plate 47 are slidably engaged with the slide rail 37.

[0035] Specifically, the docking shaft 353 at the bottom of the swing rod 35 slides in the strip hole of the strip rod 48, pushing the strip rod 48 and the connecting strip 46 to move horizontally back and forth along the sliding hole 36 and the slide rail 37 at the bottom of the mounting box 31, causing the substrate 41 to move horizontally back and forth. The two sets of fixed rods 42 and the two sets of moving rods 43 at the bottom of the substrate 41 move horizontally back and forth with the substrate 41.

[0036] Please see Figure 2 The fixed rod 42 and the moving rod 43 are each provided in two sets. The two sets of fixed rods 42 are placed between the two sets of moving rods 43. The length of the fixed rod 42 is less than the length of the moving rod 43. The base plate 41 is provided with through holes 49 for the moving rod 43 to pass through. During the leveling process, the moving rod 43 is limited by the through holes 49 to ensure stable vertical movement and avoid deflection.

[0037] Please see Figure 2 The spring component includes a limiting plate 44 connected to the top end of the moving rod 43. A spring 45 is provided between the limiting plate 44 and the base plate 41 and is sleeved on the moving rod 43. The top end of the spring 45 is fixedly connected to the limiting plate 44, and the bottom end of the spring 45 is fixedly connected to the base plate 41.

[0038] The movable rod 43 can float up and down under the elastic support of the spring 45. When it encounters a local protrusion, the movable rod 43 is squeezed and contracts upward, and the spring 45 is stretched. When it encounters a depression, the spring 45 pulls the movable rod 43 downward to fill the loose area and realize adaptive terrain adjustment. It can dynamically adapt to the unevenness or slight undulation of the roadbed surface, ensure the leveling uniformity, and the elastic buffer of the spring 45 reduces the wear of mechanical parts.

[0039] The working principle of this utility model is as follows: After the drive motor starts, the drive disk 33 rotates. The eccentric rod 34, which is fixed at the eccentric position of the drive disk 33, is embedded in the elongated hole 352 of the swing rod 35, which converts the rotational motion into the reciprocating swing of the swing rod 35. The docking shaft 353 slides in the elongated hole of the strip rod 48. The connecting strip 46 drives the base plate 41 to move back and forth laterally. The fixed rod 42 and the moving rod 43 at the bottom of the base plate 41 move back and forth horizontally with the base plate 41. The moving rod 43 can float up and down under the elastic support of the spring 45, so that the moving rod 43 can dynamically adapt to the unevenness or slight undulation of the roadbed surface, ensuring the leveling uniformity. The leveling operation is completed synchronously during the movement of the roller structure 2. The leveled roadbed is then rolled by the roller structure 2 behind it.

[0040] When operating on soft soil foundations, the installation structure 3 can be lowered as a whole before installation, so that the auxiliary leveling structure 4 is closer to the roadbed surface, enhancing the leveling effect on the soft soil layer; during operation, reduce the speed of the drive motor and reduce the swing frequency of the swing rod 35 to avoid rapid reciprocating motion that could cause soft soil to splash or local collapse.

[0041] When operating on hard rock foundations, move the mounting structure 3 upwards to avoid excessive contact between the fixed rod 42 and the moving rod 43 on the hard rock surface, thereby reducing the risk of wear. High-strength positioning bolts can be used and the number of positioning plates 23 can be increased to ensure that the frame 21 and the mounting box 31 are firmly connected and prevent vibration from loosening. During operation, increase the speed of the drive motor and increase the swing frequency of the swing rod 35 to use high-frequency vibration to break the loose gravel on the surface.

[0042] Before operation, the combination of spring stiffness, drive frequency and installation height parameters should be selected according to the geological survey report, and a no-load test run should be conducted to verify the swing stability.

[0043] Regular maintenance is required. Regularly clean the stones stuck between the fixed rod 42 and the moving rod 43, and check the lubrication status of the strip hole 48 and the docking shaft 353 to ensure smooth lateral movement.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A compaction device for leveling highway subgrade, comprising a main body (1) and a roller structure (2) installed on one side of the main body (1); characterized in that The roller structure (2) has an installation structure (3) installed on one side, and the bottom of the installation structure (3) is provided with an auxiliary leveling structure (4) for leveling before rolling; The mounting structure (3) includes a mounting box (31) and a swing rod (35) disposed in the mounting box (31). The top end of the swing rod (35) is rotatably connected to the mounting box (31) via a rotating shaft (351). A driving component for driving the swing rod (35) to swing back and forth is installed on the mounting box (31). A docking shaft (353) is connected to one side of the bottom end of the swing rod (35). The auxiliary leveling structure (4) includes a base plate (41) and a fixed rod (42) installed at the bottom of the base plate (41). A movable rod (43) is also connected to the base plate (41) by a spring. A connecting strip (46) that slides with the mounting box (31) is connected to the top of the base plate (41). A strip rod (48) is connected to the top of the connecting strip (46). The bottom end of the docking shaft (353) slides in the strip hole in the strip rod (48).

2. The compaction device for high speed subgrade grading according to claim 1, characterized in that: The roller structure (2) includes a frame (21) installed on one side of the equipment body (1), a roller (22) is installed on the frame (21), the mounting structure (3) is located on the side of the frame (21) away from the equipment body (1), several positioning plates (23) are connected to both sides of the frame (21), positioning bolts are connected to the positioning plates (23), and the mounting box (31) is provided with positioning holes corresponding to the positioning bolts.

3. The compaction device for high speed subgrade grading according to claim 1, characterized in that: The driving component includes a driving disk (33) and an eccentric rod (34) connected to the eccentric part of the driving disk (33). The driving disk (33) is disposed in the mounting box (31). The swing rod (35) is provided with an elongated hole (352) for sliding of the eccentric rod (34). The mounting box (31) is equipped with a driving box (32). The driving box (32) is equipped with a driving motor for driving the driving disk (33) to rotate.

4. The compacting device for high speed subgrade grading according to claim 1, characterized in that: The bottom of the mounting box (31) is provided with a sliding hole (36) for sliding the connecting strip (46). The top of the connecting strip (46) is connected to a sliding plate (47). The bottom of the inner cavity of the mounting box (31) is connected to a slide rail (37). The top two sides of the sliding plate (47) are slidably engaged with the slide rail (37).

5. The compacting device for high speed subgrade grading according to claim 1, characterized in that: The fixed rod (42) and the moving rod (43) are provided in two sets. The two sets of fixed rods (42) are placed between the two sets of moving rods (43). The length of the fixed rod (42) is less than the length of the moving rod (43). The base plate (41) is provided with a through hole (49) for the moving rod (43) to pass through.

6. The compaction device for high speed subgrade grading according to claim 5, characterized in that: The spring component includes a limiting plate (44) connected to the top of the moving rod (43), and a spring (45) sleeved on the moving rod (43) is provided between the limiting plate (44) and the base plate (41). The top of the spring (45) is fixedly connected to the limiting plate (44), and the bottom of the spring (45) is fixedly connected to the base plate (41).

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