A road subgrade tamping device

Abstract

A roadbed compaction device, belonging to the field of road construction technology, includes a box body, and further includes: a traveling component, a first fixed seat, a guide rod, a moving seat, a spring, a second fixed seat, a rack, and a compaction plate. The traveling component is disposed on the side wall of the box body. Two first fixed seats are provided, and the two first fixed seats are symmetrically arranged about the vertical center line of the box body. The first fixed seats are fixedly connected to the side wall of the box body. This utility model forms a dual power output of gravity and elasticity through a composite power compaction mode, which significantly improves the compaction energy and enhances the compaction depth and density of the road surface. It adopts a lightweight plate structure and elastic elements to reduce the weight of the equipment while ensuring compaction performance, thereby improving mobility and relocation efficiency. The two sets of compaction components are arranged in a left-right adjacent layout to form a continuous large-area action area, which improves the compaction area and construction efficiency per unit time. The two sets of compaction components are driven by the same driving force to work alternately, reducing the power source configuration and achieving efficient power utilization and precise compaction coordination.

Description

Technical Field

[0001] This utility model belongs to the field of road construction technology, specifically relating to a roadbed compaction device. Background Technology

[0002] During road construction, compaction equipment applies force to the subgrade, base course, or surface course materials through mechanical vibration, impact, or static pressure, causing loose particles to rearrange and become compact, thereby improving the density and load-bearing capacity of the pavement structure, effectively reducing subgrade settlement, enhancing pavement stability, and ensuring the service life of the road and driving safety.

[0003] A related technology (Chinese utility model patent with announcement number CN221480766U) discloses a roadbed compaction device, including a mounting plate with a support plate fixedly mounted on top. Two lifting holes are provided within the mounting plate. Two sets of compaction components are respectively disposed on both sides of the support plate. The compaction components can compact the roadbed by falling under gravity. The working principle and usage process are as follows: During use, the user can start the motor, which drives the half-gear to rotate, thereby driving the adjacent rack upwards and causing the compaction hammer on that side to rise. Due to the special structure of the half-gear, when the half-gear is no longer meshed with the adjacent rack, the compaction hammer on that side will fall under gravity, tamping the roadbed below. When the half-gear rotates to the point of disengagement from the adjacent rack, it will begin to mesh with an auxiliary gear. The auxiliary gear can drive the adjacent rack upwards, and the roadbed will be compacted in the same way as described above.

[0004] In the aforementioned technical solution, compaction mainly relies on the compaction hammer, after being released from its limiting constraints, to convert its own gravitational potential energy into kinetic energy to impact the ground and complete the compaction operation. This method lacks an auxiliary power source, resulting in a single energy output for compaction, which limits the compaction depth and density of the road surface. Furthermore, the compaction hammer required to meet the compaction requirements is relatively heavy, increasing the overall weight of the equipment and causing problems such as difficulty in moving the equipment and low efficiency in relocation. Utility Model Content

[0005] To address the limitations of existing technologies that rely on the gravity potential energy of a heavy hammer to impact the ground for compaction, which lacks an auxiliary power source and results in a single energy output, thus limiting the compaction depth and density, this invention provides a roadbed compaction device. Through a composite power compaction mode, it achieves dual power output—gravity and elasticity—significantly increasing compaction energy and enhancing compaction depth and density. The device employs a lightweight plate structure combined with elastic elements to reduce weight while maintaining compaction performance, improving mobility and relocation efficiency. The specific technical solution is as follows:

[0006] A roadbed compaction device includes a housing, and further includes: a traveling component, a first fixed seat, a guide rod, a movable seat, a spring, a second fixed seat, a rack, and a compaction plate. The traveling component is disposed on the side wall of the housing. Two first fixed seats are provided, and the two first fixed seats are symmetrically arranged about the vertical center line of the housing. The first fixed seats are fixedly connected to the side wall of the housing, and the side wall of the first fixed seat has a groove. The guide rod is installed vertically in the cavity of the groove in the side wall of the first fixed seat. The movable seat is slidably sleeved on the guide rod, and the movable seat is slidably disposed along the cavity of the groove in the side wall of the first fixed seat. The second fixed seat is fixedly installed on the side wall of the first fixed seat, and the second fixed seat is parallel to the movable seat. The spring is installed between the second fixed seat and the movable seat. The rack is fixedly installed on the side wall of the movable seat, and the rack is perpendicular to the movable seat. The compaction plate is fixed and vertically installed at the bottom end of the rack.

[0007] In the above technical solution, an arc-shaped plate is installed on the side wall away from the middle of the box body of the tamping plate, and the free end of the arc-shaped plate is bent upward.

[0008] The above technical solution also includes: a support frame, a rotating rod, and a half gear. Two support frames are provided, and the two support frames are respectively fixedly installed on the bottom of the inner wall of the box. The rotating rod rotates through the side wall of the support frame. The half gear is fixedly installed on the rotating rod and meshes with the side wall of the rack.

[0009] The above technical solution also includes: a complete gear, a motor frame, and a motor. There are two complete gears, and the two complete gears are respectively fixedly installed on the rotating rod at corresponding positions. The side walls of the two complete gears are meshed together. The motor frame is fixed and vertically installed on the bottom of the inner wall of the housing. The motor is installed on the side wall of the motor frame, and the output end of the motor is connected to the center of one of the complete gears.

[0010] In the above technical solution, the rotation centers of the rotating rod, the half gear, and the complete gear are arranged coaxially.

[0011] In the above technical solution, the two sets of half gears alternately mesh with the rack at the corresponding positions.

[0012] In the above technical solution, the tamping plate penetrates the outer wall of the bottom end of the box in a vertical direction.

[0013] In the above technical solution, the traveling components are provided in four groups. Each group of traveling components includes: a mounting arm, a rotating shaft, and a wheel. One end of the mounting arm is fixedly mounted to the side wall of the housing; the rotating shaft is rotatably connected to the other end of the mounting arm; and the wheel is fixedly mounted on the rotating shaft.

[0014] In the above technical solution, handles are installed on the left and right side walls of the box.

[0015] In the above technical solution, the two sets of tamping plates move alternately and reciprocally in the vertical direction.

[0016] The roadbed compaction equipment of this utility model has the following advantages compared with the prior art:

[0017] I. In response to the problem that the compaction operation is limited by the kinetic energy of the hammer's own gravity, which is converted into kinetic energy to impact the ground, the lack of an auxiliary power source and the single output of impact energy result in limited compaction depth and density, this utility model adopts a composite power compaction method. On the basis of the compaction plate falling under gravity, an elastic reset mechanism of spring is introduced. Through the synergistic effect of converting elastic potential energy into kinetic energy, a dual power output mode of gravity and elasticity is formed. Compared with the traditional single gravity compaction, the compaction energy is significantly improved, the compaction depth and density of the road surface are enhanced, and the quality of road construction is effectively improved.

[0018] Second, the existing tamping hammers that can meet the compaction effect requirements are often too heavy, which increases the overall weight of the equipment and causes difficulties in moving the equipment and low efficiency in relocation. In this utility model, the combined effect of the elastic potential energy of the spring and the gravitational potential energy of the tamping plate is used to abandon the traditional construction method that relies solely on the heavy tamping hammer. The design of a lightweight plate tamping plate structure and elastic elements is adopted to significantly reduce the weight of the equipment while ensuring the compaction performance, effectively improving the mobility and relocation efficiency of the equipment, and enhancing its applicability in complex construction scenarios.

[0019] Third, in response to the problem of insufficient compaction area and low efficiency caused by the gap between the hammers and the small area of ​​each hammer when the two sets of hammers are used for alternating compaction in the traditional method, this utility model sets the two sets of compaction plates with the hammers being adjacent to each other on the left and right. This allows the two to form a continuous large area of ​​action during the compaction operation. A single compaction can cover the gap between the two sets of hammers in the traditional method, significantly increasing the compaction area of ​​the road surface per unit time and effectively improving construction efficiency compared with the traditional hammer compaction method.

[0020] IV. This utility model uses the same driving force to drive the left and right sets of tamping plates to perform alternating tamping. While reducing the configuration of power sources, it ensures that the two sets of tamping plates complete the alternating tamping action in a set sequence by means of precise control of the power transmission system, thereby achieving efficient use of power resources and precise coordination of tamping operations.

[0021] In summary, this utility model utilizes a composite power compaction mode to achieve dual power output of gravity and elasticity, significantly enhancing compaction energy and increasing road surface compaction depth and density. The use of a lightweight plate structure combined with elastic elements reduces equipment weight while ensuring compaction performance, improving mobility and relocation efficiency. The two sets of compactors are arranged adjacent to each other, forming a continuous large-area action zone, increasing the compaction area and construction efficiency per unit time. By using the same driving force to drive the two sets of compactors alternately, the power source configuration is reduced, achieving efficient power utilization and precise, coordinated compaction. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the box body of this utility model;

[0023] Figure 2 This is the front view of the rammed plate of this utility model;

[0024] Figure 3 This is a front view of the rack of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the half gear of this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the motor of this utility model;

[0027] Figures 1 to 5 In the middle, 1. Box body, 2. Mounting arm, 3. Rotating shaft, 4. Wheel body, 5. First fixed seat, 6. Guide rod, 7. Moving seat, 8. Spring, 9. Second fixed seat, 10. Rack, 11. Compactor plate, 12. Arc plate, 13. Support frame, 14. Rotating rod, 15. Half gear, 16. Full gear, 17. Motor frame, 18. Motor, 19. Handle. Detailed Implementation

[0028] The following are specific implementation cases and appendices. Figures 1 to 5 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0029] A roadbed compaction device includes a housing 1, and further includes: a traveling component, a first fixed seat 5, a guide rod 6, a movable seat 7, a second fixed seat 9, a rack 10, and a compaction plate 11. The traveling component is disposed on the side wall of the housing 1. Two first fixed seats 5 are provided, and the two first fixed seats 5 are symmetrically arranged about the vertical center line of the housing 1. The first fixed seats 5 are fixedly connected to the side wall of the housing 1, and the side wall of the first fixed seat 5 has a groove. The guide rod 6 is installed vertically in the cavity of the groove in the side wall of the first fixed seat 5. The movable seat 7 is slidably sleeved on the guide rod 6. The movable seat 7 is slidably disposed along the inner cavity of the groove on the side wall of the first fixed seat 5; the second fixed seat 9 is fixedly installed on the side wall of the first fixed seat 5, and the second fixed seat 9 is parallel to the movable seat 7; the spring 8 is installed between the second fixed seat 9 and the movable seat 7; the rack 10 is fixedly installed on the side wall of the movable seat 7, and the rack 10 is perpendicular to the movable seat 7; the tamping plate 11 is fixed and vertically installed at the bottom end of the rack 10; the tamping plate 11 penetrates the bottom outer wall of the box 1 in the vertical direction, that is, the vertical displacement of the tamping plate 11 does not affect the normal movement of the box 1;

[0030] This invention employs a composite dynamic compaction method. During the descent of the compaction plate 11 under gravity, an integrated spring 8 provides an elastic reset mechanism. Through the synergistic conversion of elastic potential energy and kinetic energy, a dual-power output mode combining gravity and elasticity is constructed. Compared to the traditional single gravity compaction method, this design significantly enhances compaction energy, effectively increases road surface compaction depth and density, and comprehensively improves road construction quality.

[0031] In addition, this utility model breaks through the limitations of traditional construction by integrating the elastic potential energy of spring 8 and the gravitational potential energy of tamping plate 11. It replaces the traditional operation method of relying solely on a heavy-duty tamping hammer with a composite power drive mode. It adopts an optimized combination of lightweight plate tamping plate 11 structure and elastic elements. While ensuring that the tamping effect is not reduced, it significantly reduces the overall weight of the equipment, significantly improves the equipment's mobility and relocation efficiency, and enables it to flexibly adapt to various complex construction environments.

[0032] In addition, the two sets of compaction plates 11 move back and forth vertically alternately. By designing the two sets of alternating compaction plates 11 as adjacent structures, this utility model forms a continuous large-area action area during the compaction operation. Compared with the problem of insufficient compaction area per blow caused by the spacing of the hammers in the traditional heavy hammer compaction method, it can cover the interval area in the traditional method with a single blow, significantly increasing the road surface compaction area per unit time and effectively improving construction efficiency.

[0033] In addition, an arc-shaped plate 12 is installed on the side wall away from the middle of the box body 1 of the tamping plate 11. The free end of the arc-shaped plate 12 is bent upward. That is, two sets of arc-shaped plates 12 are respectively set on the left and right sides of the box body 1, which can ensure the smooth movement of the equipment and will not affect the movement of the equipment due to protrusions on the ground.

[0034] This equipment also includes: a support frame 13, a rotating rod 14, and a half gear 15. Two support frames 13 are provided, and the two support frames 13 are fixedly installed on the bottom of the inner wall of the housing 1 respectively. The rotating rod 14 rotates through the side wall of the support frame 13. The half gear 15 is fixedly installed on the rotating rod 14 and meshes with the side wall of the rack 10. The rotation of the half gear 15 can drive the rack 10 to move vertically, thereby driving the moving seat 7 to move synchronously, driving the spring 8 to deform. Subsequently, the elastic force of the spring 8 will cause the rack 10 and the tamping plate 11 to move downward, realizing the tamping of the ground. The two sets of half gears 15 alternately mesh with the rack 10 at the corresponding positions to ensure that the left and right sets of tamping plates 11 alternately realize the tamping operation of the ground.

[0035] This equipment also includes: a complete gear 16, a motor frame 17, and a motor 18. Two complete gears 16 are provided, and each complete gear 16 is fixedly mounted on a corresponding rotating rod 14, with their side walls meshing together. The motor frame 17 is fixedly and vertically mounted on the bottom of the inner wall of the housing 1. The motor 18 is mounted on the side wall of the motor frame 17, and its output end is connected to the center of one of the complete gears 16. Starting the motor 18 drives the connected rotating rod 14 to rotate. The rotating rod 14 drives the outer wall half gear 15 and the complete gear 16 to rotate synchronously, causing the other complete gear 16 to rotate in the opposite direction. The two sets of complete gears 16 rotate relative to each other, driving the two sets of half gears 15 to alternately mesh with the racks 10 on the left and right sides. Furthermore, the rotation centers of the rotating rod 14, half gear 15, and complete gear 16 are coaxially arranged to ensure that the three components can rotate coaxially.

[0036] This utility model uses the same driving force to drive two sets of tamping plates 11 to perform alternating tamping. While reducing the power source configuration, it ensures that the two sets of tamping plates 11 complete the alternating tamping action in a set sequence by means of precise control of the power transmission system, thereby achieving efficient use of power resources and precise coordination of tamping operations.

[0037] The traveling assembly consists of four sets, each set including: a mounting arm 2, a rotating shaft 3, and wheels 4. One end of the mounting arm 2 is fixedly mounted to the side wall of the housing 1; the rotating shaft 3 is rotatably connected to the other end of the mounting arm 2 via bearings; and the wheels 4 are fixedly mounted on the rotating shaft 3. By driving the equipment to move, the wheels 4 can be propelled along the ground to achieve overall equipment displacement. Handles 19 are installed on the left and right side walls of the housing 1, making it easier to drive the housing 1 to move by manually pushing the handles 19.

[0038] It is worth noting that in this application, the motor 18 is a commonly used self-locking motor with a lockable output end. When it stops, the output end can lock itself and will not rotate under external force. The motor 18 is a commonly used forward and reverse motor, and its output end can rotate in the forward or reverse direction according to the usage requirements. It is sufficient to meet the above usage requirements. The elastic coefficient of the spring 8 is sufficient to assist the compaction plate 11 in hammering downwards onto the ground to achieve the compaction of the ground by the compaction plate 11. The elastic coefficient of the spring 8 is set to meet the above requirements. It will not be elaborated or limited here.

[0039] The working principle of a roadbed compaction device in this embodiment is as follows:

[0040] Pushing handle 19 moves the equipment forward, starting motor 18 drives connected rotating rod 14 to rotate. Rotating rod 14 drives outer wall half gear 15 and full gear 16 to rotate synchronously, causing another full gear 16 to rotate in the opposite direction. The two sets of full gears 16 rotate relative to each other, driving two sets of half gears 15 to alternately mesh with racks 10 on the left and right sides. When half gear 15 rotates and meshes with rack 10, it drives the corresponding moving seat 7 to move upward, causing spring 8 to be stretched. When half gear 15 disengages from the outer wall of rack 10, spring 8's elastic force drives moving seat 7 and rack 10 downward. The compaction plate 11 at the bottom of rack 10 hammers the ground and compacts the roadbed under the combined action of its own weight and spring 8's elastic force. Since the left and right sets of half gears 15 alternately mesh with rack 10, the two sets of compaction plates 11 can alternately hammer the ground. Combined with the continuous movement of the equipment, a thorough and continuous compaction operation of the foundation is achieved.

[0041] This invention utilizes a composite power compaction mode to achieve dual power output of gravity and elasticity, significantly enhancing compaction energy and increasing road surface compaction depth and density. The use of a lightweight plate structure combined with elastic elements reduces equipment weight while ensuring compaction performance, improving mobility and relocation efficiency. The two sets of compactors are arranged adjacent to each other, forming a continuous, large-area action zone, increasing the compaction area and construction efficiency per unit time. The two sets of compactors are driven by the same driving force to operate alternately, reducing the need for a power source and achieving efficient power utilization and precise, coordinated compaction.

[0042] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0043] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0044] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0045] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0046] Unless otherwise stated, the term "multiple" means two or more.

[0047] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0048] The term "and / or" describes the relationship between objects, indicating that there can be three relationships. For example, A and / or B means: A or B, or A and B.

[0049] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A roadbed compaction device, comprising a housing (1), characterized in that: Also includes: A traveling assembly is disposed on the side wall of the housing (1); First fixing seat (5), there are two first fixing seats (5), and the two first fixing seats (5) are symmetrically arranged about the vertical center line of the box (1) as the axis. The first fixing seat (5) is fixedly connected to the side wall of the box (1), and the side wall of the first fixing seat (5) is provided with a groove. Guide rod (6), the guide rod (6) is installed vertically in the groove cavity of the side wall of the first fixed seat (5); The movable seat (7) is slidably sleeved on the guide rod (6), and the movable seat (7) is slidably arranged along the inner cavity of the side wall groove of the first fixed seat (5); The second fixed seat (9) is fixedly installed on the side wall of the first fixed seat (5), and the second fixed seat (9) is arranged parallel to the movable seat (7); A spring (8) is installed between the second fixed seat (9) and the movable seat (7); A rack (10) is fixedly installed on the side wall of the movable seat (7), and the rack (10) is perpendicular to the movable seat (7); A tamping plate (11) is fixed and vertically installed at the bottom end of the rack (10).

2. The roadbed compaction equipment according to claim 1, characterized in that: An arc-shaped plate (12) is installed on the side wall away from the middle of the box body (1) of the rammed plate (11), and the free end of the arc-shaped plate (12) is bent upward.

3. The roadbed compaction equipment according to claim 1, characterized in that: Also includes: Support frame (13), two support frames (13) are provided, and the two support frames (13) are respectively fixedly installed on the bottom of the inner wall of the box (1); Rotating rod (14), the rotating rod (14) rotates through the side wall of the support frame (13); Half gear (15) is fixedly installed on the rotating rod (14) and meshes with the side wall of the rack (10).

4. The roadbed compaction equipment according to claim 3, characterized in that: Also includes: Two complete gears (16) are provided, and the two complete gears (16) are respectively fixedly installed on the rotating rod (14) at the corresponding positions, and the side walls of the two complete gears (16) are meshed and connected. Motor frame (17), the motor frame (17) is fixed and vertically installed on the bottom of the inner wall of the box (1); The motor (18) is mounted on the side wall of the motor frame (17), and the output end of the motor (18) is connected to the center of one of the complete gears (16).

5. The roadbed compaction equipment according to claim 4, characterized in that: The rotation centers of the rotating rod (14), the half gear (15), and the complete gear (16) are arranged coaxially.

6. A roadbed compaction device according to claim 4, characterized in that: The two sets of half gears (15) alternately mesh with the rack (10) at the corresponding positions.

7. The roadbed compaction equipment according to claim 1, characterized in that: The rammed plate (11) penetrates the bottom outer wall of the box (1) in a vertical direction.

8. The roadbed compaction equipment according to claim 1, characterized in that: The traveling components are provided in four groups, and each group of traveling components includes: Mounting arm (2), one end of which is fixedly mounted to the side wall of the box (1); A rotating shaft (3) is rotatably connected to the other end of the mounting arm (2); Wheel body (4), which is fixedly installed on the rotating shaft (3).

9. A roadbed compaction device according to claim 1, characterized in that: The box (1) is equipped with handles (19) on its left and right side walls respectively.

10. A roadbed compaction device according to claim 1, characterized in that: The two sets of tamping plates (11) move back and forth alternately in the vertical direction.

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