Multifunctional auxiliary device for road roller

Abstract

The utility model relates to the technical field of pavement construction equipment. The multifunctional auxiliary device for the road roller comprises a rack and a compaction steel wheel rotationally arranged in the rack, an auxiliary mounting device is arranged on at least one inner side of the compaction steel wheel; the auxiliary mounting device comprises a fixing plate, a disc body, a connecting seat, a supporting rod, a mounting frame and a roller; one end of the fixing plate is connected with the disc body, and the other end of the fixing plate is connected with the rack; a plurality of connecting seats are arranged on the circumferential surface of the disc body at intervals; one end of the supporting rod is installed on the connecting base, and the other end of the supporting rod is rotationally provided with a roller through an installation frame. The rotating face of the roller abuts against the inner wall of the compaction steel wheel, and the axis direction of the roller is parallel to the axis direction of the compaction steel wheel. A central shaft is arranged in the middle of the disc body; a pavement finishing assembly is arranged at the tail end of the center shaft. According to the utility model, the pavement edge can be effectively compacted, the quality of the asphalt pavement is improved, and the functions of trimming, milling, side slope compacting, soil loosening and the like can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction equipment, in particular to a multifunctional auxiliary device for a road roller. Background Art

[0002] A road roller is a piece of equipment used for road construction. During the road construction process, after the materials are laid or the soil is excavated, the road roller uses the gravity of the machine itself to perform back-and-forth compaction operations, causing the compacted layer to deform and become dense over time.

[0003] In order to ensure the quality of the road surface and to perform compaction operations better and faster, both double-steel-wheel rollers and single-steel-wheel rollers are equipped with a vibration function. The current structural design of the compacting steel wheel of the roller is to install a traveling mechanism on one side and a vibration mechanism on the other side. The compacting steel wheel of the roller is in a state of rolling and vibrating at the same time when working. As shown in the double-steel-wheel roller disclosed in the prior art CN213772827U and the roller disclosed in the prior art CN102086626A, the steel wheel roller is a relatively bulky machine, and a relatively thick steel frame must be designed around its steel wheel to fix it. The following problems exist during road construction:

[0004] First, due to the structural design with the frame outside and the steel wheel inside, when the roller is working in an environment where there are obstacles on both sides or one side of the steel wheel, such as when there are concrete retaining walls, concrete piers, steel columns, and steel guardrails on one side or both sides of the compacting steel wheel of the roller, the roller is affected by its frame and external obstacles and cannot compact to the edge, requiring manual rework and compaction. Generally, the compaction degree of the road surface 30cm-50cm away from the edge of the road surface cannot meet the requirements of the construction technical specifications. If the compaction degree of the fill material of the platform back, wall back or culvert back does not meet the requirements of the construction specifications, it will cause the road surface to sink in the later stage, vehicles to jump out, and affect driving safety. If the compaction degree of the road surface edge does not meet the requirements of the construction specifications, it will cause the road surface to collapse or be affected by rainwater and cause early damage.

[0005] Secondly, the vast majority of rollers currently on the market only have compaction capabilities. In actual construction, these functions are limited, resulting in low utilization and a failure to realize the roller's potential, leading to a waste of resources. Some manufacturers also produce rollers with pavement edge compaction and trimming capabilities. While these trimming functions are adequate for soft asphalt pavements, their edge compaction capabilities fail to meet construction specifications. This is because the compaction force or vibration delivered by their small rollers is far inferior to the inherent compaction or vibration of the roller's compacting steel drum.

[0006] Therefore, it is urgent to propose a new technical solution to solve the above problems. Utility Model Content

[0007] The present utility model aims to solve at least one of the technical problems raised in the above-mentioned background technology, and provides a multifunctional auxiliary device for a road roller, which has a reasonable structure. By setting up an auxiliary installation device and a road surface finishing component for use in conjunction, it can achieve effective compaction of the road surface edge, ensure that the compaction degree of the asphalt road surface edge meets the requirements of the construction specifications, improve the quality of the asphalt road surface, and can also realize the functions of edge pressing, edge cutting, milling, slope compaction, land leveling, loosening soil, etc.

[0008] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is:

[0009] A multifunctional auxiliary device for a road roller comprises a frame and a compacting steel wheel rotatably arranged in the frame; an auxiliary mounting device is provided on at least one inner side of the compacting steel wheel, and the auxiliary mounting device comprises a fixing plate, a disc body, a connecting seat, a support rod, a mounting frame and a roller; one end of the fixing plate is connected to the disc body, and the other end of the fixing plate is connected to the frame; a plurality of connecting seats are arranged at intervals on the circumferential surface of the disc body; one end of the support rod is mounted on the connecting seat, and the other end of the support rod is rotatably mounted with a roller through the mounting frame; the rotating surface of the roller contacts the inner wall of the compacting steel wheel, and the axial direction of the roller is parallel to the axial direction of the compacting steel wheel; a central axis is provided in the middle of the disc body; and a road surface finishing assembly is provided at the end of the central axis.

[0010] As a further improvement of the present invention, the fixing plate is connected to the frame via a shock-absorbing rubber block.

[0011] As a further improvement of the present invention, the support rod is a square rod, both ends of the support rod are provided with threads, one end of the support rod is threadedly connected to the mounting seat; the other end of the support rod is threadedly connected to the mounting bracket

[0012] As a further improvement of the present invention, the road surface finishing component is an auxiliary roller steel wheel, and the diameter of the auxiliary roller steel wheel is 30cm-50cm; the length is 30cm-50cm.

[0013] As a further improvement of the present invention, the road surface finishing component is a slope compacting plate or a leveling scraper.

[0014] As a further improvement of the present invention, the road surface finishing component is a cutting wheel or a loosening board.

[0015] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0016] 1. The utility model is a multifunctional auxiliary device for a road roller. By setting up an auxiliary installation device and a road surface finishing component for use, it can achieve effective compaction of the road surface edge, ensure that the compaction degree of the asphalt road surface edge meets the requirements of construction specifications, and improve the quality of the asphalt road surface; it can also ensure that the filling of the bridge or culvert abutment meets the requirements of construction specifications, and improve the quality of the project.

[0017] 2. The pavement finishing assembly of the present invention can adopt auxiliary roller steel wheels, slope compacting flat plates or leveling scrapers or loosening plates, and has the functions of edge pressing, edge cutting, milling, slope compacting, edge patting, shoulder or median strip soil leveling, shoulder or slope or central median strip ditching, loosening soil and the like.

[0018] 3. The utility model replaces some workers' manual work, speeds up the construction progress, reduces construction costs and improves the road surface quality.

[0019] 4. Reasonable structure, simple production, short processing cycle, easy implementation and low investment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a multifunctional auxiliary device for a road roller in an embodiment of the present utility model;

[0021] Figure 2 This is a structural schematic diagram of a multifunctional auxiliary device for a road roller in another embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the auxiliary installation device of the utility model;

[0023] Figure 4 This is a schematic structural diagram of the cutting wheel of the utility model;

[0024] Figure 5 This is a schematic structural diagram of the small milling drum of the utility model;

[0025] Figure 6 This is a schematic structural diagram of the utility model slope compacting flat plate;

[0026] Figure 7 This is a schematic structural diagram of the smoothing scraper of the utility model;

[0027] Figure 8 This is a schematic structural diagram of the utility model loosening plate;

[0028] The following are marked in the accompanying drawings: 1. frame; 2. compacting steel wheel; 3. fixing plate; 4. disc; 5. connecting seat; 6. support rod; 7. mounting frame; 8. roller; 9. center shaft; 10. shock-absorbing rubber block; 11. auxiliary roller; 12. cutting wheel; 13. small milling drum; 14. slope compacting plate; 15. leveling scraper; 16. loosening plate; DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium, or they can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] See also Figures 1-8The cam 7 is a kind of multifunctional auxiliary device for road roller, comprising a frame 1 and a compacting steel wheel 2 rotatably arranged in the frame 1; at least one inner side of the compacting steel wheel 2 is provided with an auxiliary mounting device, and the auxiliary mounting device comprises a fixing plate 3, a disc body 4, a connecting seat 5, a support rod 6, a mounting frame 7 and a roller 8; one end of the fixing plate 3 is connected to the disc body 4, and the other end of the fixing plate 3 is connected to the frame 1 through a shock-absorbing rubber block 10; a plurality of connecting seats 5 are arranged at intervals on the circumferential surface of the disc body 4; one end of the support rod 6 is installed on the connecting seat 5, and the other end of the support rod 6 is rotatably mounted on the mounting frame 7; the rotating surface of the roller 8 contacts the inner wall of the compacting steel wheel 2, and the axial direction of the roller 8 is parallel to the axial direction of the compacting steel wheel 2; a central axis 9 is provided in the middle of the disc body 4; the end of the central axis 9 is provided with a road surface finishing assembly.

[0032] The support rod 6 is a square rod, and both ends of the support rod 6 are provided with threads. One end of the support rod 6 is threadedly connected to the mounting seat; the other end of the support rod 6 is threadedly connected to the mounting bracket 7.

[0033] In this embodiment, the road surface finishing component is an auxiliary roller steel wheel 11, and the auxiliary roller steel wheel 11 is an auxiliary roller steel wheel 11, and its diameter is 30cm-50cm; and its length is 30cm-50cm.

[0034] Preferably, the road surface finishing component is a slope compacting plate 14 or a leveling scraper 15 .

[0035] Preferably, the road surface finishing component is a cutting wheel 12 or a ripping board 16 .

[0036] The utility model discloses a multifunctional auxiliary device for a road roller, which has a reasonable structure and can improve the quality of asphalt pavement. The specific structure of the device is described in detail below:

[0037] The disc 4 is the central component for mounting and connecting the entire device. It is shaped like a short cylinder. Its center is used to mount a central shaft 9, with a connecting base 5 and a fixing plate 3 welded to its periphery. The disc 4, along with the roller's compacting drum 2, bears the roller's weight. It also transmits the roller's weight and the vibrational force of the compacting drum 2 to the auxiliary roller 11 via the central shaft 9. This ensures that the auxiliary roller 11 has the same static pressure and vibration capacity as the main roller 2, ensuring that the auxiliary roller 11 and the main roller 2 produce a road surface of consistent quality.

[0038] Connecting seats 5 are welded to the periphery of the disc body 4 at intervals and have threads inside for connection to the support rod 6. The function of the connecting seats 5 is to connect the support rod 6 and the disc body 4 to form a rigid component and transmit the torque and vibration from the compacting steel wheel 2 of the roller.

[0039] The support rod 6 has threads and nuts at both ends. One end is connected to the connecting base 5, and the other end is connected to the mounting bracket 7. The effective connection length of the support rod 6 can be adjusted by the internal threads of the connecting base 5 to ensure that the roller 8 fits tightly against the inner diameter of the compacting steel drum 2 of the roller. The support rod 6 is squared at appropriate locations to facilitate adjustment with a wrench. Once the length is adjusted to the desired level, it is secured with nuts.

[0040] In order to increase the load-bearing capacity, the mounting frame 7 adopts a U-shaped design. The mounting frame 7 is used to install the roller 8 and is connected to the support rod 6.

[0041] Roller 8 is made of high-strength steel and equipped with internal bearings. It is connected to the mounting frame 7 via a pin, allowing for quick replacement and maintenance. To maximize contact area between roller 8 and the steel drum and enhance overall stability, roller 8 is cylindrical. Roller 8 fits directly and tightly against the inside of the roller's compacting drum 2. As the compacting drum 2 rotates, roller 8 rotates relative to the drum, simultaneously bearing the roller's weight and transmitting vibrations from the drum 2.

[0042] One end of the central shaft 9 is used to mount the auxiliary roller 11; the other end is designed with a spline and connected to the disc body 4. When the roller is no longer required, the central shaft 9 and the auxiliary roller 11 can be quickly removed to restore the roller to its original working condition. The length of the central shaft 9 can be designed to be adjustable according to actual construction requirements.

[0043] One end of the fixing plate 3 can be connected to the disc 4 via a bolted connection seat 5 or directly welded to the disc 4. The other end is connected to the roller frame 1 via a shock-absorbing rubber block 10. The function of the fixing plate 3 is to help fix the disc 4, and the shock-absorbing rubber reduces the impact of the disc 4's vibration on the roller.

[0044] All road finishing components are mounted on a central shaft 9, which can be designed into various shapes according to the different functional requirements of each road finishing component. In addition to auxiliary rollers 11, road finishing components can also include cutting wheels 12, small milling drums 13, slope compacting plates 14, leveling scrapers 15, loosening plates 16, etc. Specifically:

[0045] 1. Auxiliary roller steel wheel 11. The auxiliary roller steel wheel 11 is a double-plate double-bearing design. Since the auxiliary roller steel wheel 11 is small in size and light in weight, it does not need to be fixed by a frame. It can meet the working conditions by simply connecting it through the central shaft 9. The auxiliary roller steel wheel 11 extends 30cm-50cm on one side of the compacting steel wheel 2 of the roller. The auxiliary roller steel wheel 11 can be used for asphalt pavement construction, especially for edge compaction operations of bridge asphalt paving, and can also be used for compaction of shoulder earthing. The auxiliary roller steel wheel 11 itself does not require driving force. When working, it rolls forward, backward or vibrates under the push and drive of the compacting steel wheel 2 of the roller. The rolling direction is consistent with the rotation direction of the compacting steel wheel 2 of the roller. The compaction surface of the auxiliary roller steel wheel 11 can be kept level with the compaction surface of the compacting steel wheel 2 of the roller, and can also be designed to be height-adjustable.

[0046] 2. Cutting Wheel 12. During asphalt pavement construction, the cutting wheel 12 is used to cut and trim the asphalt pavement's edges, improving the pavement's straightness and appearance. It can also be used to cut end joints during asphalt pavement construction. Activating the vibration function during cutting enhances the effect. The cutting wheel 12 can be designed with either a powered or unpowered mode. The unpowered mode is suitable for cutting soft asphalt pavements, while the powered mode is suitable for cutting hard asphalt or concrete pavements.

[0047] 3. Small milling drum 13. When milling asphalt concrete pavements and bridge deck cement concrete pavements, professional milling machines, due to their structural design and curb structures, often fail to mill a 20 cm wide strip of pavement edge. The small milling drum 13 of the present invention easily solves this problem. Similarly, the small milling drum 13 is mounted on the central shaft 9 and equipped with a hydraulic motor connected to the roller's existing hydraulic system as a drive device.

[0048] 4. Slope Compactor 14 (Edge Beater). When constructing thick, cement-stable bases, the slope compactor (edge beater) vibrates and compacts the cement-stable mix at the edges to prevent collapse. During roadbed construction, the slope compactor (edge beater) compacts loose soil on the slope to prevent rainwater from collapsing the slope. During operation, the roller's compacting steel drum 2 provides a continuous vibration force to the edge beater.

[0049] 5. Shoulder or median soiling and leveling scraper 15. When soiling the shoulder or median, the soiling and leveling scraper 15 road surface finishing assembly can be used for leveling.

[0050] 6. Ditching and soil loosening devices for road shoulders, side slopes, or median strips. After the road side slopes or median strips are filled with soil, trenching, planting, soil loosening, and other related processes are required. These processes can be smoothly implemented by installing the corresponding road surface finishing components.

[0051] The multifunctional device has reliable and secure connections between its components, is easy to use, simple to manufacture, has room for expansion, requires little investment, and is highly practical. It can be used by roller manufacturers for simultaneous production and can also be used to retrofit existing old rollers.

[0052] The present invention provides a multifunctional auxiliary device for a road roller, without modifying the existing structure of the roller. The following structural upgrades are made: A roller 8, mounting bracket 7, support rod 6, connecting base 5, disc 4, central shaft 9, road surface finishing assembly, and fixing plate 3 are sequentially installed inside (on the left or right side) the compacting drum 2 of the roller. The roller 8 is tightly attached to the compacting drum 2 of the roller. The roller 8 and mounting bracket 7 are connected to the support rod 6, which is connected to the connecting base 5 via threaded nuts. The connecting base 5 is welded to the periphery of the disc 4. The central shaft 9 is mounted at the center of the disc 4, and the road surface finishing assembly is further connected to the central shaft 9. The fixing plate 3 secures the disc 4 and is connected to the roller frame 1 via shock-absorbing adhesive. The roller 8, mounting bracket 7, support rod 6, and connecting base 5 are used in combination. The number of these components can be increased depending on the diameter of the compacting drum 2 of the roller. This embodiment uses four sets as an example.

[0053] The operating principle of a multifunctional auxiliary device for a road roller according to the present invention is as follows (this embodiment uses the auxiliary roller steel wheel 11 as an example; the other road surface finishing components are similar and will not be described in detail): When the road roller moves forward or backward, the compacting steel wheel 2 of the road roller begins to roll forward or backward, and all rollers 8 in close contact with it begin to rotate due to the friction of the compacting steel wheel 2. As the rollers 8 rotate, they transmit the static pressure of the road roller to the mounting frame 7, support rod 6, connecting seat 5, disc body 4, central shaft 9, and auxiliary roller steel wheel 11 in sequence. At this time, the auxiliary roller steel wheel 11, which is in contact with the road surface, bears almost the same static pressure as the compacting steel wheel 2 of the road roller. At the same time, it rolls forward or backward, compacting the road surface, driven by the compacting steel wheel 2 and the auxiliary device. When the compacting steel wheel 2 of the road roller starts to vibrate while moving forward or backward, the vibration force is transmitted along the same path as described above. At this time, the auxiliary roller steel wheel 11 is the same as the compacting steel wheel 2 of the roller. It rolls and moves while vibrating to compact the edge of the road surface, so that the edge of the road surface reaches the same compaction degree as the entire road surface, ensuring the quality of the road surface and meeting the design requirements of the construction technical specifications. Because the disc body 4 is connected to the frame 1 of the roller through the fixed plate 3 and shock-absorbing rubber, the impact of vibration on the roller is reduced. The remaining structural components are made of high-strength steel and rigidly connected, and have a certain impact resistance. When the multifunctional auxiliary device of a roller of the utility model is working, except for the roller 8 and the auxiliary roller steel wheel 11 that rotate, the remaining components participate in the transmission of gravity and vibration force without rotating. The auxiliary roller steel wheel 11 extends 30cm-50cm from the side of the roller, and the driver has a good line of sight and is easy to operate.

[0054] The above description is a detailed description of the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modifications completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. A multifunctional auxiliary device for a road roller, comprising a frame (1) and a compacting steel wheel (2) rotatably arranged in the frame (1); characterized in that: An auxiliary mounting device is provided on at least one inner side of the compacting steel wheel (2), and the auxiliary mounting device comprises a fixing plate (3), a disc body (4), a connecting seat (5), a support rod (6), a mounting frame (7) and a roller (8); one end of the fixing plate (3) is connected to the disc body (4), and the other end of the fixing plate (3) is connected to the frame (1); a plurality of connecting seats (5) are arranged at intervals on the circumferential surface of the disc body (4); one end of the support rod (6) is mounted on the connecting seat (5), and the other end of the support rod (6) is rotatably mounted with a roller (8) through the mounting frame (7); the rotating surface of the roller (8) contacts the inner wall of the compacting steel wheel (2), and the axial direction of the roller (8) is parallel to the axial direction of the compacting steel wheel (2); a central axis (9) is provided in the middle of the disc body (4); and a road surface finishing assembly is provided at the end of the central axis (9).

2. The multifunctional auxiliary device for a road roller according to claim 1, characterized in that: The fixing plate (3) is connected to the frame (1) via a shock-absorbing rubber block (10).

3. The multifunctional auxiliary device for a road roller according to claim 1, characterized in that: The support rod (6) is a square rod, and both ends of the support rod (6) are provided with threads. One end of the support rod (6) is threadedly connected to the mounting seat; the other end of the support rod (6) is threadedly connected to the mounting frame (7).

4. The multifunctional auxiliary device for a road roller according to claim 1, characterized in that: The road surface finishing component is an auxiliary road rolling steel wheel (11), and the diameter of the auxiliary road rolling steel wheel (11) is 30cm-50cm; the length is 30cm-50cm.

5. The multifunctional auxiliary device for a road roller according to claim 1, characterized in that: The road surface finishing component is a slope compacting plate (14) or a leveling scraper (15).

6. The multifunctional auxiliary device for a road roller according to claim 1, characterized in that: The road surface finishing component is a cutting wheel (12) or a loosening plate (16).

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