A weight-adjustable road roller

Abstract

The utility model discloses a kind of road rollers of adjustable weight, including support frame, support frame both sides are fixed with mounting plate, multiple the inside of mounting plate is equipped with press roll, the both ends of press roll are fixed with rotating lever, multiple rotating lever top end is rotatably connected with fixed plate, fixed mechanism is arranged between the fixed plate and mounting plate, the fixed mechanism includes inserting rod and fixed sleeve, inserting rod is inserted on fixed plate and mounting plate, fixed sleeve is inserted on inserting rod top end, fixed sleeve inside is equipped with mounting block, the mounting block is equipped with multiple and inside is fixed with inserting plate, the inserting plate is equipped with multiple distribution in the inside of multiple mounting block, inserting rod outer wall is equipped with slot, the slot is equipped with multiple and respectively with multiple inserting plate insertion, the road roller of this adjustable weight is designed by innovative fixed mechanism, ingeniously solve the problem of traditional road roller weight fixed, poor adaptability.

Description

Technical Field

[0001] This utility model relates to the field of road roller technology, and more specifically, to a road roller with adjustable weight. Background Technology

[0002] In the field of road construction and infrastructure development, different types of pavement materials and foundation structures require different compaction strengths to ensure optimal construction quality and project durability. Currently, road rollers on the market have significant limitations in adapting to diverse construction needs, especially when dealing with pavement materials of varying hardness, such as flexible asphalt and hard crushed stone. Traditional road rollers, with their fixed weight design, cannot effectively adjust the rolling pressure according to actual construction conditions. This single-parameter design is inadequate in complex and ever-changing engineering environments. Construction units often need to equip multiple road rollers of different specifications for different road sections, which not only significantly increases equipment investment costs but also leads to high equipment idle rates and low resource utilization efficiency, failing to meet the dual requirements of modern road construction for the flexibility and economy of construction equipment.

[0003] In large-scale infrastructure projects and urban road maintenance, the same project often involves multiple pavement structures and material layers, requiring the application of different compaction strengths at different construction stages. Existing road rollers, due to their fixed and non-adjustable weight, pose a serious challenge for construction workers when switching between pavements of different hardness. They either have to force themselves to continue construction using equipment with unsuitable compaction strength, sacrificing pavement quality, or frequently change different models of road rollers, causing delays in construction progress and wasting manpower and resources. Especially in the delicate construction of confined spaces and special terrain areas, fixed-weight road rollers are even more difficult to precisely control the compaction degree, easily causing quality problems such as over-compaction or under-compaction. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides an adjustable weight road roller to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable weight road roller, including a support frame, mounting plates fixedly provided on both sides of the support frame, pressure rollers provided on the inner sides of multiple sets of mounting plates, rotating rods fixedly provided at both ends of the pressure rollers, and fixed plates rotatably connected to the top ends of multiple sets of rotating rods. A fixing mechanism is provided between the fixed plate and the mounting plate, the fixing mechanism including a plug rod and a fixing sleeve, the plug rod being inserted into the fixed plate and the mounting plate, the fixing sleeve being inserted into the top end of the plug rod, mounting blocks provided on the inner side of the fixing sleeve, multiple sets of mounting blocks provided, each with a plug plate fixedly provided on its inner side, multiple sets of plug plates distributed on the inner side of multiple sets of mounting blocks, slots provided on the outer wall of the plug rod, multiple sets of slots being inserted into multiple sets of plug plates respectively, sliding grooves provided on the outer wall of the fixing sleeve, multiple sets of sliding grooves being slidably connected to sliding sleeves, push rings fixedly provided on the inner side of the sliding sleeves, and push rings abutting against the bottom surface of multiple sets of mounting blocks.

[0006] The present invention is further configured such that inclined blocks are fixedly provided on the outer sides of multiple sets of mounting blocks, and inclined grooves are provided on the inner wall of the fixing sleeve. Multiple sets of inclined grooves are provided and are slidably connected to multiple sets of inclined blocks, which enhances the tight fit between the mounting blocks and the fixing sleeve and improves the stability and adjustability of the structure.

[0007] The present invention is further configured such that a limiting cylinder is fixedly provided on the inner side of the fixing sleeve, a positioning groove is provided on the inner side of the limiting cylinder, and a positioning strip is fixedly provided on the outer wall of the insertion rod. Multiple sets of positioning grooves and positioning strips are provided to ensure accurate positioning between the insertion rod and the fixing sleeve and reduce errors and loosening during the movement process.

[0008] The present invention is further configured such that a sliding rod is fixedly provided on the top surface of the sliding sleeve, the sliding rod is provided in multiple sets and each of the sliding rods is fixedly provided with a limiting block at its top end, a rotating sleeve is rotatably provided on the outer wall of the fixed sleeve, and a limiting hole is provided on the outer wall of the rotating sleeve, the limiting hole is provided in multiple sets and each of the limiting holes is provided with an unlocking hole at one end, providing flexible adjustment and safe locking functions for the rotating sleeve, and enhancing the operability and safety of the device.

[0009] The present invention is further provided with a push spring connected to the bottom surface of the rotating sleeve, and a thrust bearing is connected between the bottom end of the push spring and the sliding sleeve, which improves the stability and smoothness of the rotating sleeve, reduces friction and increases service life.

[0010] The present invention is further configured such that both the fixing plate and the mounting plate are provided with insertion holes, and the insertion rod is inserted into the insertion holes, which ensures a firm connection between the insertion rod and the fixing plate and the mounting plate, and increases the stability and seismic resistance of the overall structure.

[0011] The present invention is further provided that both sides of the support frame are rotatably mounted with traveling wheels, which provides the support frame with convenient mobility and facilitates the movement and adjustment of the overall equipment.

[0012] The present invention is further configured such that a traction frame is hinged to the top of the support frame, and a hydraulic cylinder is rotatably mounted on the outside of the traction frame. The telescopic end of the hydraulic cylinder is rotatably connected to the outside of the support frame, which improves the traction and adjustment capabilities of the support frame and enhances the operational flexibility and control precision of the equipment.

[0013] Compared with the prior art, this utility model provides an adjustable weight road roller, which has the following beneficial effects: 1. This adjustable-weight road roller cleverly solves the problems of fixed weight and poor adaptability of traditional road rollers through its innovative fixing mechanism design. The operator only needs to align the fixing plate with the mounting plate, insert the insertion rod into the insertion hole, and then insert the fixing sleeve into the top of the insertion rod. Then, push the sliding sleeve to drive the push ring to push the mounting block so that the insertion plate is inserted into the slot. Finally, rotate the rotating sleeve to make the sliding rod slide into the limiting hole to complete the limiting. The entire roller installation process is simple and intuitive and does not require professional tools. It realizes the rapid adjustment of the road roller weight and can flexibly change rollers of different weights according to different road materials and construction requirements. This greatly improves the applicability and work efficiency of a single machine. It is especially suitable for complex projects with various road structures and material layers, and effectively solves the resource waste problem of traditional road rollers requiring multiple machines when facing road surfaces of different hardness.

[0014] 2. The disassembly mechanism of this device is also scientifically and efficiently designed. By simply rotating the rotating sleeve, the sliding rod slides to the unlocking hole. With the help of the spring force, the sliding sleeve is automatically moved and released from the mounting block, allowing the insert plate to disengage from the slot, realizing a one-click quick disassembly function. This design not only greatly reduces the time and complexity of changing the pressure roller, but also allows construction personnel to quickly switch between different construction stages and road surfaces with different hardness, without the need to frequently change different models of road rollers. This effectively avoids the problems of construction delays and waste of manpower and resources. Even in high-standard highway construction projects, it can still maintain efficient and stable construction performance, greatly improving equipment utilization and the uniformity of project quality.

[0015] 3. The positioning groove and positioning strip inside the limiting cylinder ensure the accuracy of the insertion process of the insertion rod. The sliding connection between the inclined block and the inclined groove provides a stable and reliable movement trajectory for the installation block. The application of the thrust bearing ensures the smoothness of the rotation process of the rotating sleeve. The combination of the traveling wheels on both sides of the support frame and the top hinged traction frame with hydraulic cylinder enables flexible movement and height adjustment of the equipment. These carefully considered structural details together create an adjustable weight roller system that is easy to operate and highly efficient and reliable. This greatly improves the overall performance and user experience of the road construction process. Especially in the fine construction of confined spaces and special terrain areas, it can accurately control the degree of compaction and avoid quality problems such as over-compaction or under-compaction. It provides more flexible, efficient and precise advanced equipment support for the road construction and infrastructure construction fields. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an adjustable weight road roller according to the present invention; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the structure of this utility model; Figure 4 This is a cross-sectional view of the structure of this utility model; Figure 5 This is a schematic diagram of the structure of this utility model.

[0017] In the diagram: 1. Support frame; 2. Mounting plate; 3. Pressure roller; 4. Rotating rod; 5. Fixing plate; 6. Insert rod; 7. Fixing sleeve; 8. Mounting block; 9. Insert plate; 10. Slot; 11. Slide groove; 12. Slide sleeve; 13. Push ring; 14. Inclined block; 15. Inclined groove; 16. Limiting cylinder; 17. Positioning groove; 18. Positioning strip; 19. Slide rod; 20. Limiting block; 21. Rotating sleeve; 22. Limiting hole; 23. Unlocking hole; 24. Push spring; 25. Thrust bearing; 26. Insertion hole; 27. Traveling wheel; 28. Traction frame; 29. ​​Hydraulic cylinder. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0021] Please see Figures 1-5An adjustable weight road roller includes a support frame 1, with mounting plates 2 fixedly mounted on both sides of the support frame 1. Multiple sets of mounting plates 2 have pressure rollers 3 mounted on their inner sides. Both ends of the pressure rollers 3 are fixedly mounted with rotating rods 4. The tops of the multiple sets of rotating rods 4 are rotatably connected to fixed plates 5. A fixing mechanism is provided between the fixed plates 5 and the mounting plates 2. The fixing mechanism includes insert rods 6 and fixing sleeves 7. Insert rods 6 are inserted into the fixed plates 5 and the mounting plates 2. Fixing sleeves 7 are inserted into the tops of insert rods 6. Mounting blocks 8 are provided inside the fixing sleeves 7. Multiple sets of mounting blocks 8 are provided, and insert plates 9 are fixedly mounted on their inner sides. Multiple sets of insert plates 9 are distributed inside the multiple sets of mounting blocks 8. The outer wall of the insert rods 6 has slots 10. Multiple sets of slots 10 are provided and are respectively inserted into the multiple sets of insert plates 9. The outer wall of the fixing sleeves 7 has sliding grooves 11. Multiple sets of sliding grooves 11 are provided and are slidably connected to sliding sleeves 12. Push rings 13 are fixedly mounted inside the sliding sleeves 12 and abut against the bottom surface of the multiple sets of mounting blocks 8.

[0022] Multiple sets of mounting blocks 8 are fixedly provided with inclined blocks 14 on their outer sides, and inclined grooves 15 are provided on the inner wall of the fixing sleeve 7. Multiple sets of inclined grooves 15 are provided and are slidably connected to multiple sets of inclined blocks 14 respectively.

[0023] A limiting cylinder 16 is fixedly provided inside the fixed sleeve 7. A positioning groove 17 is provided inside the limiting cylinder 16. A positioning strip 18 is fixedly provided on the outer wall of the insertion rod 6. Multiple sets of positioning grooves 17 and positioning strips 18 are provided.

[0024] A sliding rod 19 is fixedly provided on the top surface of the sliding sleeve 12. Multiple sets of sliding rods 19 are provided, and each of them is fixedly provided with a limiting block 20 at its top. A rotating sleeve 21 is rotatably provided on the outer wall of the fixed sleeve 7. A limiting hole 22 is opened on the outer wall of the rotating sleeve 21. Multiple sets of limiting holes 22 are provided, and each of them is provided with an unlocking hole 23 at one end.

[0025] A push spring 24 is connected to the bottom surface of the rotating sleeve 21, and a thrust bearing 25 is connected between the bottom end of the push spring 24 and the sliding sleeve 12.

[0026] Both the fixing plate 5 and the mounting plate 2 have insertion holes 26, and the insertion rod 6 is inserted into the insertion hole 26.

[0027] Both sides of the support frame 1 are equipped with rotatable wheels 27.

[0028] A traction frame 28 is hinged to the top of the support frame 1. A hydraulic cylinder 29 is rotatably mounted on the outside of the traction frame 28. The telescopic end of the hydraulic cylinder 29 is rotatably connected to the outside of the support frame 1.

[0029] In this embodiment, during use, the traction frame 28 is connected to the external vehicle body, the fixing plate 5 is abutted against the mounting plate 2 and the insertion hole 26 is aligned, the insertion rod 6 is inserted into the insertion hole 26, and then the fixing sleeve 7 is inserted into the top of the insertion rod 6. The sliding sleeve 12 is pushed to slide along the multiple sets of sliding grooves 11 and to compress the push spring 24. The sliding sleeve 12 drives the push ring 13 to push the multiple sets of mounting blocks 8 to slide along the inclined groove 15 through the inclined block 14 and drive the insertion plate 9 to be inserted into the slot 10. The sliding sleeve 12 pushes the sliding rod 19 into the unlocking hole 23. The rotating sleeve 21 is rotated so that the multiple sets of sliding rods 19 slide into the limiting hole 22, so that the multiple sets of limiting blocks 20 abut against the top surface of the rotating sleeve 21 and are limited by the limiting sleeve. The multiple sets of fixing plates 5 are fixed in sequence to complete the installation of the pressure roller 3.

[0030] More specifically, when it is necessary to disassemble the pressure roller 3, rotating the rotating sleeve 21 causes multiple sets of sliding rods 19 to slide into the unlocking hole 23, releasing the contact between the limiting block 20 and the rotating sleeve 21. The push spring 24 pushes the sliding sleeve 12 to slide along multiple sets of sliding grooves 11 and drives the push ring 13 to release the contact with multiple sets of mounting blocks 8. Then, the multiple sets of mounting blocks 8 slide along the inclined groove 15 through the inclined block 14 and cause the insert plate 9 to disengage from the slot 10, releasing the locking of the insert rod 6. Then, the insert rod 6 is pulled out of the insertion hole 26, which releases the fixing of the fixing plate 5, and then the pressure roller 3 can be disassembled.

[0031] In summary, when using or operating the overall equipment: During use, connect the traction frame 28 to the external vehicle body, abut the fixing plate 5 against the mounting plate 2 and align the insertion hole 26, insert the insertion rod 6 into the insertion hole 26, then insert the fixing sleeve 7 onto the top of the insertion rod 6, push the sliding sleeve 12 along multiple sets of sliding grooves 11 and compress the push spring 24, the sliding sleeve 12 drives the push ring 13 to push multiple sets of mounting blocks 8 so that they slide along the inclined groove 15 through the inclined block 14 and drive the insertion plate 9 into the slot 10, the sliding sleeve 12 pushes the sliding rod 19 into the unlocking hole 23, rotate the rotating sleeve 21 so that multiple sets of sliding rods 19 slide into the limiting hole 22, so that multiple sets of limiting blocks 20 abut against the top surface of the rotating sleeve 21 and are limited by the limiting sleeve, and then fix multiple sets of fixing plates 5 in sequence to complete the installation of the pressure roller 3.

[0032] When it is necessary to disassemble the pressure roller 3, rotate the rotating sleeve 21 to make multiple sets of sliding rods 19 slide into the unlocking hole 23, release the contact between the limiting block 20 and the rotating sleeve 21, push the sliding sleeve 12 along multiple sets of sliding grooves 11 through the push spring 24 and drive the push ring 13 to release the contact with multiple sets of mounting blocks 8. Then, the multiple sets of mounting blocks 8 slide along the inclined groove 15 through the inclined block 14 and make the insert plate 9 disengage from the slot 10, release the locking of the insert rod 6, and then pull the insert rod 6 out of the insertion hole 26 to release the fixing of the fixing plate 5. Then the pressure roller 3 can be disassembled.

[0033] Of all the solutions mentioned above, those involving connections between two components can be selected based on the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other well-known connection methods. These will not be elaborated on here. For all the fixed connections mentioned above, welding is the preferred option. In all the solutions mentioned above, the operation of electrical components, unless otherwise specified, is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and wiring connections are existing, well-known, and mature technologies, and their specific circuit structures will not be described in detail here. The specific models and specifications of the electrical components involved in this solution need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, and therefore will not be described in detail. Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies and will not be described in detail in this utility model. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable weight road roller, comprising a support frame (1), characterized in that: The support frame (1) is fixedly provided with mounting plates (2) on both sides. Multiple sets of mounting plates (2) are provided with pressure rollers (3) on their inner sides. Both ends of the pressure rollers (3) are fixed with rotating rods (4). The top ends of the multiple sets of rotating rods (4) are rotatably connected with fixed plates (5). A fixing mechanism is provided between the fixed plate (5) and the mounting plate (2). The fixing mechanism includes a plug rod (6) and a fixing sleeve (7). The plug rod (6) is inserted into the fixing plate (5) and the mounting plate (2). The fixing sleeve (7) is inserted into the top end of the plug rod (6). The fixing sleeve (7) is provided with a mounting block (8) on its inner side. The mounting block (8) is provided with multiple sets of insert plates (9) fixed on the inner side of each set. The insert plates (9) are provided with multiple sets distributed on the inner side of multiple sets of mounting blocks (8). The outer wall of the insert rod (6) is provided with slots (10). The slots (10) are provided with multiple sets and are respectively inserted into multiple sets of insert plates (9). The outer wall of the fixing sleeve (7) is provided with sliding grooves (11). The sliding grooves (11) are provided with multiple sets and are slidably connected with sliding sleeves (12). The inner side of the sliding sleeves (12) is fixed with push rings (13). The push rings (13) abut against the bottom surface of multiple sets of mounting blocks (8).

2. The adjustable weight road roller according to claim 1, characterized in that: Multiple sets of mounting blocks (8) are fixed with inclined blocks (14) on their outer sides. The inner wall of the fixing sleeve (7) is provided with inclined grooves (15). Multiple sets of inclined grooves (15) are provided and are slidably connected to multiple sets of inclined blocks (14).

3. The adjustable weight road roller according to claim 2, characterized in that: The inner side of the fixed sleeve (7) is fixedly provided with a limiting cylinder (16), the inner side of the limiting cylinder (16) is provided with a positioning groove (17), and the outer wall of the insertion rod (6) is fixedly provided with a positioning strip (18). The positioning groove (17) and the positioning strip (18) are provided in multiple sets.

4. The adjustable weight road roller according to claim 3, characterized in that: The top surface of the sliding sleeve (12) is fixedly provided with a sliding rod (19). The sliding rod (19) is provided with multiple sets and each of them is fixedly provided with a limiting block (20). The outer wall of the fixed sleeve (7) is provided with a rotating sleeve (21). The outer wall of the rotating sleeve (21) is provided with a limiting hole (22). The limiting hole (22) is provided with multiple sets and each of them is provided with an unlocking hole (23) at one end.

5. The adjustable weight road roller according to claim 4, characterized in that: A push spring (24) is connected to the bottom surface of the rotating sleeve (21), and a thrust bearing (25) is connected between the bottom end of the push spring (24) and the sliding sleeve (12).

6. The adjustable weight road roller according to claim 5, characterized in that: Both the fixing plate (5) and the mounting plate (2) are provided with insertion holes (26), and the insertion rod (6) is inserted into the insertion hole (26).

7. A road roller with adjustable weight according to claim 6, characterized in that: The support frame (1) is equipped with rotatable wheels (27) on both sides.

8. The adjustable weight road roller according to claim 7, characterized in that: The top of the support frame (1) is hinged to a traction frame (28), and a hydraulic cylinder (29) is rotatably installed on the outside of the traction frame (28). The telescopic end of the hydraulic cylinder (29) is rotatably connected to the outside of the support frame (1).

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