Dynamic compaction device for high-water-level roadbed

By using a combination design of gravity blocks, rubber pads, buffer cylinders, and buffer components in the construction of roadbeds at high water levels, the problems of low pressure and instability of existing devices under high water conditions have been solved, achieving more efficient compaction and stable tamping effects.

CN223535691UActive Publication Date: 2025-11-11SHANDONG SHITONG HIGHWAY CONSTR CO LTD
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Patent Information

Application Number
CN202423058096.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2025-11-11
Estimated Expiration
2034-12-11

AI Technical Summary

Technical Problem

Existing highway subgrade construction compaction devices are limited in overall height and have low gravitational acceleration under high water conditions, resulting in low pressure on the foundation and instability of the device.

Method used

The design incorporates a combination of gravity blocks and pressure components, along with rubber pads, buffer cylinders, and buffer components. The rubber pads prevent rigid contact, the buffer components reduce reaction forces, the counterweight ring increases self-weight, and a dual-axis motor drives a winding rod to raise and lower the steel cable to stabilize the pressure components. A depth sensor monitors the compaction depth.

Benefits of technology

It improves the compressive strength of the foundation and the stability of the device, avoids instability caused by reaction force, extends service life, and facilitates maintenance and multi-foundation compaction operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of roadbeds, and discloses a high-water-level roadbed dynamic compaction device which comprises a machine body, a limiting frame is arranged on the left side of the machine body, a pressure piece is slidably connected into the limiting frame, a rubber pad is installed on the upper surface of the pressure piece, and a gravity block is placed on the upper surface of the rubber pad; a damping frame is mounted on the right side of the limiting frame, two buffer cylinders are mounted on the inner top wall of the damping frame, and buffer parts are slidably connected into the two buffer cylinders. According to the high-water-level roadbed dynamic compaction device, under the action of the gravity block and the pressure piece, the ground can be compacted under the condition that the pressure piece keeps in contact with the bottom face, and the situation that the service life of the device is affected due to rigid contact between the gravity block and the pressure piece can be avoided by installing a rubber pad; and through cooperation of the buffer cylinder and the buffer piece, the counter-acting force transmitted to the machine body by the limiting frame can be reduced, and the whole machine can be kept in a stable state.
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Description

Technical Field

[0001] This application relates to the field of roadbed technology, specifically to a high-water-level roadbed dynamic compaction device. Background Technology

[0002] The roadbed is the foundation of the track or road surface. It is an earthwork structure formed by excavation or filling. The main function of the roadbed is to provide the necessary conditions for the laying of the track or road surface and the operation of trains or vehicles. It also bears the static and dynamic loads of the track and locomotives or the road surface and traffic loads, while transferring and dispersing the loads deep into the foundation. In the longitudinal section, the roadbed must ensure the required elevation of the line. In the horizontal plane, the roadbed connects with bridges and tunnels to form a complete and continuous line. In civil engineering, the roadbed occupies an important position in terms of construction quantity, land area and investment.

[0003] An existing patent (publication number: CN211848760U) discloses a compaction device for highway subgrade construction, relating to the field of subgrade construction technology. Specifically, it is a compaction device for highway subgrade construction, comprising a support plate, a bracket fixedly connected to one side of the support plate, an adjusting device fixedly connected to the upper surface of the support plate, a pressure plate fixedly connected to one side of the adjusting device, a hollow groove inside the pressure plate, a gravity plate fixedly connected to the lower surface of the pressure plate by a strong spring, a connecting plate fixedly connected to the top of the adjusting device, an adjusting device fixedly connected to the upper surface of the connecting plate, a shrinkage device fixedly connected to one side of the adjusting device, a compaction block fixedly connected to the shrinkage device by a steel wire, and a sliding plate fixedly connected to one side of the connecting plate. Both the sliding plate and the connecting plate have steel wire holes on their surfaces. This device facilitates adjustment of the compaction pressure and simplifies the construction process.

[0004] During the use of the above-mentioned document, due to the limited overall height, the gravity plate experiences a low gravitational acceleration, resulting in a small overall pressure on the foundation. At the same time, when pressure is applied to the foundation, the reaction force will act on the device body, leading to instability of the device body. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a high-water-level roadbed dynamic compaction device, which has advantages such as increasing high-pressure and improving overall stability, and solves the problems mentioned in the background technology.

[0006] To achieve the above objectives, this application provides the following technical solution: a high-water-level roadbed dynamic compaction device, comprising a body, a limiting frame provided on the left side of the body, a pressure component slidably connected inside the limiting frame, a rubber pad installed on the upper surface of the pressure component, a gravity block placed on the upper surface of the rubber pad, a shock-absorbing frame installed on the right side of the limiting frame, two buffer cylinders installed on the inner top wall of the shock-absorbing frame, buffer components slidably connected inside the two buffer cylinders, two buffer springs fixedly connected to the upper surface of the two buffer components, and the other ends of the two buffer springs fixedly connected to the buffer cylinders adjacent to them.

[0007] The above scheme allows for compaction of the ground by using gravity blocks and pressure components while maintaining contact between the pressure components and the bottom surface.

[0008] Furthermore, two limiting rods are fixedly connected to the upper surface of the pressure component, and both limiting rods completely penetrate the rubber pad. The gravity block is slidably connected to the two limiting rods.

[0009] The above method allows the installation of a limiting rod to limit the movement of the gravity block, enabling it to slide stably within the limiting frame and improving the stability of the counterweight.

[0010] Furthermore, mounting plates are fixedly connected to the lower ends of the two buffer components, and the mounting plates are connected to the machine body by bolts.

[0011] The above solution allows for the installation of the machine body using a mounting plate, while also facilitating the disassembly of the machine body from the shock-absorbing frame and enabling maintenance after the limit frame is removed.

[0012] Furthermore, multiple counterweight rings are installed on the upper surface of the machine body, and the multiple counterweight rings are distributed at equal intervals.

[0013] By implementing the above scheme, setting a counterweight ring can increase the machine's own weight, making the machine more stable and preventing instability caused by the reaction force during tamping.

[0014] Furthermore, a rigid support is fixedly connected to the upper surface of the machine body, and two winding rods are rotatably connected to the upper end of the rigid support. Two traction steel cables are fixedly connected to the upper surface of the pressure component, and the other ends of the two traction steel cables are fixedly connected to the winding rods adjacent to them.

[0015] The above scheme allows for the installation of traction cables to pull the pressure components out of the foundation, facilitating the compaction work in other areas after the initial compaction is completed.

[0016] Furthermore, a dual-axis motor is installed at the upper end of the rigid support member, and the ends of the two winding rods that are close to each other are fixedly connected to the output end of the dual-axis motor.

[0017] Through the above scheme, the dual-axis motor can drive the winding rod to wind up the traction cable, enabling the traction cable to pull the pressure component away from the soil.

[0018] Furthermore, a tension steel cable is fixedly connected to the upper surface of the gravity block, a rotating column is rotatably connected to the left end of the rigid support, the upper end of the tension steel cable is fixedly connected to the rotating column, a drive motor is installed on the front of the rigid support, and the output end of the drive motor is fixedly connected to the rotating column.

[0019] The above scheme allows the installation of tension cables and rotating columns to pull the gravity block vertically upward within the limit frame. When the rotating column loses its power source, the gravity block will impact the rubber pad vertically due to the acceleration of gravity, allowing the pressure to be transmitted to the pressure components and act on the foundation.

[0020] Furthermore, a display screen is installed on the front of the machine body, and a depth sensor is embedded on the outer surface of the pressure component.

[0021] The above solution allows for the installation of depth sensors to monitor the depth of the pressure components embedded in the soil, and the display screen enables staff to observe the depth of the pressure components in real time.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This high-water-level roadbed dynamic compaction device can compact the ground while maintaining contact between the pressure component and the bottom surface by setting up gravity blocks and pressure components. The installation of rubber pads can avoid rigid contact between the two and affect their service life. The installation of buffer cylinders and buffer components can reduce the reaction force transmitted from the limit frame to the machine body, thus maintaining the overall stability. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this application;

[0025] Figure 2 For this application Figure 1 Enlarged schematic diagram of the structure at point A;

[0026] Figure 3 This is a cross-sectional view of the overall structure of this application;

[0027] Figure 4 This is a schematic diagram of the pressure component structure in this application.

[0028] In the picture:

[0029] 1. Body; 2. Limiting frame; 3. Pressure component; 4. Rubber pad; 5. Gravity block; 6. Shock-absorbing frame; 7. Buffer cylinder; 8. Buffer component; 9. Buffer spring; 10. Limiting rod; 11. Mounting plate; 12. Counterweight ring; 13. Rigid support component; 14. Rewinding rod; 15. Traction cable; 16. Dual-axis motor; 17. Tension cable; 18. Rotating column; 19. Drive motor; 20. Display screen; 21. Depth sensor. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 , Figure 2 and Figure 3 This embodiment of a high-water-level roadbed dynamic compaction device includes a body 1. A limiting frame 2 is provided on the left side of the body 1. A pressure component 3 is slidably connected inside the limiting frame 2. A rubber pad 4 is installed on the upper surface of the pressure component 3. A gravity block 5 is placed on the upper surface of the rubber pad 4. A shock-absorbing frame 6 is installed on the right side of the limiting frame 2. Two buffer cylinders 7 are installed on the inner top wall of the shock-absorbing frame 6. Buffer components 8 are slidably connected inside the two buffer cylinders 7. Two buffer springs 9 are fixedly connected to the upper surface of the two buffer components 8. The other end of the two buffer springs 9 is fixedly connected to the buffer cylinder 7 that is close to them. By setting the gravity block 5 and the pressure component 3, the ground can be compacted while the pressure component 3 is in contact with the bottom surface. The installation of the rubber pad 4 can avoid the rigid contact between the two and affect their service life. The cooperation of the buffer cylinders 7 and the buffer components 8 can reduce the reaction force transmitted from the limiting frame 2 to the body 1, so that the whole can maintain a stable state.

[0032] Please see Figure 1 , Figure 2 and Figure 3Two limiting rods 10 are fixedly connected to the upper surface of the pressure component 3. Both limiting rods 10 completely penetrate the rubber pad 4. The gravity block 5 is slidably connected to the two limiting rods 10. Installing the limiting rods 10 can limit the gravity block 5, so that the gravity block 5 can slide stably within the limiting frame 2, thereby improving the stability of the counterweight. The lower ends of the two buffer components 8 are fixedly connected to the mounting plates 11. The mounting plates 11 are connected to the machine body 1 by bolts. The mounting plates 11 can be used to install the machine body 1 and facilitate the disassembly of the machine body 1 and the shock absorption frame 6. It is convenient to remove the limiting frame 2 and then perform maintenance. Multiple counterweight rings 12 are installed on the upper surface of the machine body 1. The multiple counterweight rings 12 are evenly distributed. The counterweight rings 12 can increase the self-weight of the machine body 1, making the machine body 1 more stable and preventing the machine body 1 from becoming unstable due to the reaction force during tamping.

[0033] Please see Figure 1 , Figure 2 and Figure 4 A rigid support member 13 is fixedly connected to the upper surface of the machine body 1. Two winding rods 14 are rotatably connected to the upper end of the rigid support member 13. Two traction steel cables 15 are fixedly connected to the upper surface of the pressure member 3. The other ends of the two traction steel cables 15 are fixedly connected to the winding rods 14 that are close to each other. Installing the traction steel cables 15 can pull the pressure member 3, making it easy to pull the pressure member 3 out of the foundation, which is convenient for tamping other places after the tamping is completed. A dual-axis motor 16 is installed at the upper end of the rigid support member 13. The ends of the two winding rods 14 that are close to each other are fixedly connected to the output end of the dual-axis motor 16. The dual-axis motor 16 can drive the winding rods 14 to wind the traction steel cables 15, so that the traction steel cables 15 can pull the pressure member 3 to separate from the soil. A tension steel cable 17 is fixedly connected to the upper surface of the gravity block 5. A rotating column 18 is rotatably connected to the left end of the support member 13. The upper end of the tension cable 17 is fixedly connected to the rotating column 18. A drive motor 19 is installed on the front of the rigid support member 13. The output end of the drive motor 19 is fixedly connected to the rotating column 18. The cooperation between the tension cable 17 and the rotating column 18 can pull the gravity block 5 vertically upward within the limit frame 2. When the rotating column 18 loses its power source, the gravity block 5 will vertically impact the rubber pad 4 due to the influence of gravity acceleration, so that the pressure can be transmitted to the pressure member 3 and act on the foundation. A display screen 20 is installed on the front of the machine body 1. A depth sensor 21 is embedded on the outer surface of the pressure member 3. The depth sensor 21 can monitor the depth of the pressure member 3 into the soil. With the cooperation of the display screen 20, it is convenient for the staff to observe the depth of the pressure member 3 in real time.

[0034] This embodiment of a high-water-level roadbed dynamic compaction device can compact the ground while the pressure component 3 is in contact with the bottom surface under the action of the gravity block 5 and the pressure component 3. The installation of rubber pad 4 can avoid rigid contact between the two and affect their service life. The installation of buffer cylinder 7 and buffer component 8 can reduce the reaction force transmitted from the limit frame 2 to the machine body 1, so that the whole can maintain a stable state.

[0035] The working principle of the above embodiment is as follows: First, when the foundation is being compacted, the drive motor 19 drives the rotating column 18 to rotate, enabling the tension cable 17 to be wound up, allowing the counterweight to rise stably and vertically. The installation of the limit rod 10 can limit the gravity block 5, allowing the gravity block 5 to slide stably within the limit frame 2, improving the stability of the counterweight. When the rotating column 18 loses its power source, the gravity block 5 will vertically impact the rubber pad 4 due to the influence of gravity acceleration, allowing the pressure to be transmitted to the pressure component 3 and act on the foundation. During this process, the traction cable 15 is in a slack state. By setting the gravity block 5 and the pressure component 3 together, the ground can be compacted while the pressure component 3 remains in contact with the bottom surface. The installation of the rubber pad 4 can avoid rigid contact between the two, thus preventing it from affecting its use. In terms of lifespan, when compacting the foundation, the combination of the buffer cylinder 7 and the buffer component 8 can reduce the reaction force transmitted from the limit frame 2 to the machine body 1 and achieve a damping buffering effect, which can keep the whole body stable. The counterweight ring 12 can increase the self-weight of the machine body 1, making the machine body 1 more stable and preventing the machine body 1 from becoming unstable due to the reaction force during compaction. During the foundation compaction process, the depth sensor 21 can monitor the depth of the pressure component 3 into the soil, and the display screen 20 can facilitate the staff to observe the depth of the pressure component 3 in real time. After compaction is completed, the dual-axis motor 16 drives the winding rod 14 to rotate and wind up the traction steel cable 15, so that the traction steel cable 15 can pull the pressure component 3 away from the soil, which is convenient for compaction work in other areas.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0037] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-water-level roadbed dynamic compaction device, comprising a body (1), characterized in that: The left side of the body (1) is provided with a limiting frame (2), and a pressure component (3) is slidably connected inside the limiting frame (2). A rubber pad (4) is installed on the upper surface of the pressure component (3), and a gravity block (5) is placed on the upper surface of the rubber pad (4). A shock-absorbing frame (6) is installed on the right side of the limiting frame (2). Two buffer cylinders (7) are installed on the inner top wall of the shock-absorbing frame (6). Buffer components (8) are slidably connected inside the two buffer cylinders (7). Two buffer springs (9) are fixedly connected to the upper surface of the two buffer components (8). The other end of the two buffer springs (9) is fixedly connected to the buffer cylinder (7) that is close to them.

2. The high-water-level roadbed dynamic compaction device according to claim 1, characterized in that: The upper surface of the pressure component (3) is fixedly connected to two limiting rods (10), both of which completely penetrate the rubber pad (4), and the gravity block (5) is slidably connected to the two limiting rods (10).

3. The high-water-level roadbed dynamic compaction device according to claim 1, characterized in that: The lower ends of the two buffer components (8) are fixedly connected to mounting plates (11), which are connected to the body (1) by bolts.

4. The high-water-level roadbed dynamic compaction device according to claim 1, characterized in that: Multiple counterweight rings (12) are installed on the upper surface of the body (1), and the multiple counterweight rings (12) are distributed at equal distances.

5. The high-water-level roadbed dynamic compaction device according to claim 1, characterized in that: A rigid support member (13) is fixedly connected to the upper surface of the body (1). Two winding rods (14) are rotatably connected to the upper end of the rigid support member (13). Two traction steel cables (15) are fixedly connected to the upper surface of the pressure member (3). The other ends of the two traction steel cables (15) are fixedly connected to the winding rods (14) that are close to them.

6. The high-water-level roadbed dynamic compaction device according to claim 5, characterized in that: A dual-axis motor (16) is installed on the upper end of the rigid support (13), and the ends of the two winding rods (14) that are close to each other are fixedly connected to the output end of the dual-axis motor (16).

7. A high-water-level roadbed dynamic compaction device according to claim 5, characterized in that: The upper surface of the gravity block (5) is fixedly connected to a tension steel cable (17), the left end of the rigid support (13) is rotatably connected to a rotating column (18), the upper end of the tension steel cable (17) is fixedly connected to the rotating column (18), the front side of the rigid support (13) is equipped with a drive motor (19), and the output end of the drive motor (19) is fixedly connected to the rotating column (18).

8. The high-water-level roadbed dynamic compaction device according to claim 1, characterized in that: The front of the body (1) is equipped with a display screen (20), and the outer surface of the pressure component (3) is inlaid with a depth sensor (21).

Citation Information

Patent Citations

  • Ramming and compacting device for highway foundation construction

    CN211848760U