A fine-grained soil subgrade compaction and localized fracturing device

Abstract

The utility model discloses a kind of fine-grained soil roadbed compaction and local crushing device, belong to light roadbed rolling equipment technical field, including vehicle body, the front end of vehicle body is arranged frame, compaction roller is arranged on frame;Frame side is rotatably connected with swing bar, first drive assembly connected with swing bar is arranged on frame, telescopic component is arranged on swing bar, the telescopic end of telescopic component is provided with cover shell, cover shell one end opening, crushing roller is rotatably connected in cover shell, second drive assembly connected with crushing roller is arranged on cover shell;Cover shell side is provided with multiple nozzles, water supply component is arranged on cover shell and is communicated with multiple nozzles;When swing bar swings to horizontal position, telescopic component telescopes along vertical direction, the opening end of cover shell is downward, the injection direction of nozzle is towards the below of crushing roller.The utility model integrates roadbed compaction and local crushing, can be compacted after local watering crushing to hard soil block, improve operation convenience, improve compaction efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of lightweight roadbed compaction equipment, and in particular to a device for compacting and partially breaking up fine-grained soil roadbeds. Background Technology

[0002] Fly ash is a byproduct produced during the combustion process of coal mines or thermal power plants. It is lightweight, hygroscopic, and has a certain degree of cementing properties. Silt has some characteristics of sandy soil and clay soil. Both silt and fly ash are fine-grained soils that can be added to the fill of roadbeds, thereby providing lighter fill, reducing the weight of the roadbed, reducing the load on the foundation, and mitigating foundation settlement and deformation.

[0003] The compaction effect of silt and fly ash subgrade is greatly affected by moisture content. Therefore, watering is necessary to maintain appropriate humidity before overall compaction using a road roller. However, the surface of the silty clay mixture of silt and fly ash is extremely prone to water loss. During compaction, it is easy to encounter clods formed after the silt and fly ash mixture loses moisture and solidifies. These clods are hard and difficult to compact, usually requiring repeated rolling or the use of external crushing equipment to locally moisten and break up the clods before rolling. This is not only cumbersome but also reduces compaction efficiency. Especially in narrow spaces such as retaining walls and pipelines in subgrade engineering, the compaction degree of backfill soil is prone to be substandard.

[0004] To address this, a compaction and partial crushing device for fine-grained soil subgrade is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a device for compacting and partially breaking up fine-grained soil subgrade, aiming to solve or improve at least one of the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a fine-grained soil subgrade compaction and partial crushing device, including a vehicle body, a frame is provided at the front end of the vehicle body, and a compaction roller is provided on the frame;

[0007] A swing arm is rotatably connected to one side of the frame. A first drive assembly connected to the swing arm is provided on the frame. A telescopic assembly is provided on the swing arm. A cover is provided at the telescopic end of the telescopic assembly. One end of the cover is open. A crushing roller is rotatably connected inside the cover. A second drive assembly connected to the crushing roller is provided on the cover. The crushing roller extends out of the opening of the cover. Several crushing teeth are circumferentially fixed to the side wall of the crushing roller.

[0008] The cover has multiple nozzles on one side, and a water supply assembly communicating with the multiple nozzles is provided on the cover; when the swing arm swings to a horizontal position, the telescopic assembly extends and retracts in the vertical direction, the opening end of the cover faces downward, and the spray direction of the nozzles is towards the bottom of the crushing roller.

[0009] Preferably, the first drive assembly includes a first motor fixed to one side of the frame, and the output shaft of the first motor is fixed to the swing arm.

[0010] Preferably, the second drive assembly includes a second motor fixed to the side wall of the housing, a cavity is provided in the side wall of the housing, a rotating shaft is fixed to one end of the crushing roller, the rotating shaft extends into the cavity and is fixed to a first gear, the output shaft of the second motor extends into the cavity and is fixed to a second gear, and the first gear meshes with the second gear.

[0011] Preferably, the water supply assembly includes a water tank fixed to the outer wall of the housing, a water pump fixed inside the water tank, a water pipe fixed to the outlet end of the water pump, and the water pipe extending outside the water tank and fixedly connected to and communicating with the plurality of nozzles.

[0012] Preferably, a third motor is fixedly connected to the end of the swing arm away from the first motor, a support plate is fixedly connected to the output shaft of the third motor, the telescopic component is provided on the support plate, and the output shaft of the third motor is perpendicular to the swing arm.

[0013] Preferably, the telescopic assembly includes a plurality of first hydraulic cylinders fixed to the support plate, and the cover is provided on the piston rod of the plurality of first hydraulic cylinders.

[0014] Preferably, a second hydraulic cylinder is fixedly connected to the piston rod of the plurality of first hydraulic cylinders, the second hydraulic cylinder is arranged perpendicularly to the first hydraulic cylinder, and the piston rod of the second hydraulic cylinder is fixedly connected to the cover.

[0015] Preferably, the frame is U-shaped, with both ends of the frame rotatably connected to the two sides of the vehicle body, and a third hydraulic cylinder is hinged to the two sides of the vehicle body, with the piston rod of the third hydraulic cylinder hinged to the frame.

[0016] This utility model discloses the following technical effects: When compacting silty soil and fly ash subgrade using a compaction roller, if difficult-to-compact soil clods are encountered during compaction, the first drive assembly drives the swing arm to a horizontal position, with the crushing roller positioned above the soil clod. Water is sprayed onto the soil clod using a nozzle, and the second drive assembly drives the crushing roller to rotate. The telescopic assembly then drives the crushing roller to descend and crush the soil clod, thus facilitating compaction. This application integrates subgrade compaction and local crushing, allowing for localized water spraying and crushing of hard soil clods before compaction, improving operational convenience and compaction efficiency. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[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 structure of this utility model during partial crushing;

[0020] Figure 3 This is a schematic diagram of the structure of the rocker arm, the first hydraulic cylinder, and the second hydraulic cylinder in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the cover and crushing roller in this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the cover of this utility model after removing one end cap.

[0023] Figure 6 This is a schematic diagram of the structure of the first gear and the second gear in this utility model.

[0024] In the diagram: 1. Vehicle body; 2. Frame; 3. Swing arm; 4. Cover; 5. Crushing roller; 6. Crushing teeth; 7. Nozzle; 8. First motor; 9. Second motor; 10. First gear; 11. Second gear; 12. Water tank; 13. Water pipe; 14. Third motor; 15. First hydraulic cylinder; 16. Second hydraulic cylinder; 17. Third hydraulic cylinder; 18. Compacting roller. Detailed Implementation

[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] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Reference Figures 1-6 This utility model provides a compaction and partial crushing device for fine-grained soil subgrade, including a vehicle body 1, a frame 2 at the front end of the vehicle body 1, and a compaction roller 18 on the frame 2;

[0028] A swing arm 3 is rotatably connected to one side of the frame 2. A first drive assembly connected to the swing arm 3 is provided on the frame 2. A telescopic assembly is provided on the swing arm 3. A cover 4 is provided at the telescopic end of the telescopic assembly. One end of the cover 4 is open. A crushing roller 5 is rotatably connected inside the cover 4. A second drive assembly connected to the crushing roller 5 is provided on the cover 4. The crushing roller 5 extends out of the opening of the cover 4. Several crushing teeth 6 are circumferentially fixed to the side wall of the crushing roller 5.

[0029] The crushing roller 5 and the crushing teeth 6 are made of high-hardness alloy wear-resistant steel. After the rotating crushing roller 5 is aligned with the soil clod and driven into the roadbed, it crushes hard soil clods, rocks and other hard materials by relying on its strong grinding ability.

[0030] Multiple nozzles 7 are provided on one side of the cover 4, and a water supply assembly connected to the multiple nozzles 7 is provided on the cover 4; when the swing arm 3 swings to the horizontal position, the telescopic assembly extends and retracts in the vertical direction, the opening end of the cover 4 faces downward, and the spray direction of the nozzles 7 is towards the bottom of the crushing roller 5.

[0031] Water can be sprayed before crushing, or water can be sprayed at the same time as crushing to keep the crushed silt and fly ash at a suitable humidity.

[0032] The compaction roller 18 is rotatably connected to the vehicle frame 2 through the rotating shafts at both ends. A vibration damping mechanism is provided between the compaction roller 18 and the rotating shaft. The compaction roller 18 is hollow and is equipped with a vibration excitation mechanism. The vibration excitation mechanism consists of an eccentric block, a vibration shaft, a drive motor, etc. The centrifugal force generated during the rotation of the eccentric block drives the compaction roller 18 to generate a vibration force on the roadbed, thereby compacting the roadbed. The vibration damping mechanism reduces the impact of vibration on the vehicle frame (the specific structure is existing technology and will not be described in detail here).

[0033] The compaction roller 18 is used to compact silty soil and fly ash subgrade. During compaction, when encountering difficult-to-compact clods, the first drive assembly drives the swing arm 3 to a horizontal position, with the crushing roller 5 positioned above the clod. The nozzle 7 sprays water onto the clod, and the second drive assembly drives the crushing roller 5 to rotate. The telescopic assembly lowers the crushing roller 5 to break the clod. After crushing, a certain degree of depression appears below the crushing roller 5, and the crushed soil concentrates on one side. At this point, the compaction roller 18 can be moved along the subgrade soil to push the crushed soil backfill, thus facilitating compaction. This application integrates subgrade compaction and local crushing, allowing for localized water spraying and crushing of hard soil clods before compaction, improving operational convenience and compaction efficiency.

[0034] The scheme is further optimized. The first drive component includes a first motor 8 fixedly connected to one side of the frame 2, and the output shaft of the first motor 8 is fixedly connected to the swing arm 3.

[0035] In a further optimized design, the second drive assembly includes a second motor 9 fixed to the side wall of the housing 4. A cavity is provided inside the side wall of the housing 4. One end of the crushing roller 5 is fixed to a rotating shaft, which extends into the cavity and is fixed to a first gear 10. The output shaft of the second motor 9 extends into the cavity and is fixed to a second gear 11. The first gear 10 meshes with the second gear 11.

[0036] The second motor 9 drives the second gear 11 to rotate, which in turn drives the first gear 10 to rotate, thereby realizing the rotation and crushing of the crushing roller 5.

[0037] Further optimization of the scheme: the water supply component includes a water tank 12 fixed to the outer wall of the housing 4, a water pump fixed inside the water tank 12, a water pipe 13 fixed to the outlet end of the water pump, the water pipe 13 extending out of the water tank 12 and fixedly connected to and communicating with multiple nozzles 7.

[0038] In a further optimized design, a third motor 14 is fixedly connected to the end of the swing arm 3 away from the first motor 8. A support plate is fixedly connected to the output shaft of the third motor 14, and a telescopic component is provided on the support plate. The output shaft of the third motor 14 is perpendicular to the swing arm 3.

[0039] The telescopic assembly includes multiple first hydraulic cylinders 15 fixed to the support plate, and a cover 4 is provided on the piston rod of the multiple first hydraulic cylinders 15.

[0040] In a further optimized design, a second hydraulic cylinder 16 is fixedly connected to the piston rod of multiple first hydraulic cylinders 15. The second hydraulic cylinder 16 is arranged perpendicularly to the first hydraulic cylinders 15, and the piston rod of the second hydraulic cylinder 16 is fixedly connected to the cover 4.

[0041] The first hydraulic cylinder 15 causes the crushing roller 5 to contact the soil clods and descend while crushing, thus achieving overall crushing of the soil clods. The position and angle of the crushing roller 5 can be adjusted by the third motor 14 and the second hydraulic cylinder 16.

[0042] Further optimization of the design: the frame 2 is U-shaped, and the two ends of the frame 2 are rotatably connected to the two sides of the body 1. The two sides of the body 1 are hinged with a third hydraulic cylinder 17, and the piston rod of the third hydraulic cylinder 17 is hinged to the frame 2.

[0043] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A device for compacting and partially breaking up fine-grained soil subgrade, characterized in that: Includes a vehicle body (1), a frame (2) is provided at the front end of the vehicle body (1), and a compaction roller (18) is provided on the frame (2); A swing arm (3) is rotatably connected to one side of the frame (2). A first drive assembly connected to the swing arm (3) is provided on the frame (2). A telescopic assembly is provided on the swing arm (3). A cover (4) is provided at the telescopic end of the telescopic assembly. One end of the cover (4) is open. A crushing roller (5) is rotatably connected inside the cover (4). A second drive assembly connected to the crushing roller (5) is provided on the cover (4). Several crushing teeth (6) are circumferentially fixed to the side wall of the crushing roller (5). The cover (4) is provided with a plurality of nozzles (7) on one side, and a water supply assembly connected to the plurality of nozzles (7) is provided on the cover (4); when the swing rod (3) swings to a horizontal position, the telescopic assembly extends and retracts in the vertical direction, the opening end of the cover (4) faces downward, and the spray direction of the nozzles (7) is towards the bottom of the crushing roller (5).

2. The fine-grained soil subgrade compaction and partial crushing device according to claim 1, characterized in that: The first drive assembly includes a first motor (8) fixed to one side of the frame (2), and the output shaft of the first motor (8) is fixed to the swing arm (3).

3. The fine-grained soil subgrade compaction and partial crushing device according to claim 1, characterized in that: The second drive assembly includes a second motor (9) fixed to the side wall of the cover (4), a cavity is provided in the side wall of the cover (4), a rotating shaft is fixed to one end of the crushing roller (5), the rotating shaft extends into the cavity and is fixed to a first gear (10), the output shaft of the second motor (9) extends into the cavity and is fixed to a second gear (11), and the first gear (10) meshes with the second gear (11).

4. The fine-grained soil subgrade compaction and partial crushing device according to claim 1, characterized in that: The water supply assembly includes a water tank (12) fixed to the outer wall of the housing (4), a water pump fixed inside the water tank (12), a water pipe (13) fixed to the outlet end of the water pump, and the water pipe (13) extending out of the water tank (12) and fixedly connected to and communicating with a plurality of nozzles (7).

5. The fine-grained soil subgrade compaction and partial crushing device according to claim 2, characterized in that: A third motor (14) is fixedly connected to one end of the swing arm (3) away from the first motor (8). A support plate is fixedly connected to the output shaft of the third motor (14), and the telescopic assembly is provided on the support plate. The output shaft of the third motor (14) is perpendicular to the swing arm (3).

6. The fine-grained soil subgrade compaction and partial crushing device according to claim 5, characterized in that: The telescopic assembly includes a plurality of first hydraulic cylinders (15) fixed to the support plate, and the cover (4) is provided on the piston rod of the plurality of first hydraulic cylinders (15).

7. The fine-grained soil subgrade compaction and partial crushing device according to claim 6, characterized in that: A second hydraulic cylinder (16) is fixedly connected to the piston rod of a plurality of first hydraulic cylinders (15). The second hydraulic cylinder (16) is arranged perpendicularly to the first hydraulic cylinder (15), and the piston rod of the second hydraulic cylinder (16) is fixedly connected to the cover (4).

8. The fine-grained soil subgrade compaction and partial crushing device according to claim 1, characterized in that: The frame (2) is U-shaped, and the two ends of the frame (2) are rotatably connected to the two sides of the vehicle body (1). The two sides of the vehicle body (1) are hinged with a third hydraulic cylinder (17), and the piston rod of the third hydraulic cylinder (17) is hinged to the frame (2).

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