A roadbed filling apparatus
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-06
- Publication Date
- 2026-08-11
AI Technical Summary
分层填筑施工，每层压实厚度通常为20～30cm，使用推土机、平地机等设备将填料均匀摊铺，表面平整度偏差需≤±5cm，现有技术中，工程施工设备一般只具有单一功能，在进行路基填筑时，需要多种设备协同工作，效率低，且增加施工成本
与现有技术相比，本实用新型在工程车前后分别设置铲斗及铲刀，综合铲车及推土机两种工程器械的功能，应用于路基填筑施工，铲装填筑料进行填筑后，同步进行推土铲平，降低设备投入及使用成本，管理方便，提高施工效率。
Smart Images
Figure CN224620701U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road construction technology, and in particular to a roadbed filling device. Background Technology
[0002] The main components of a highway are the pavement and the roadbed. The roadbed is the foundation of the pavement, formed by excavation or filling and compaction of the original ground surface. Roadbed filling is a crucial foundation construction step in road engineering, referring to the process of constructing a load-bearing structural layer beneath the road through layered filling and compaction of soil and rock materials, providing stable support for the pavement. Its core purpose is to ensure that the roadbed has sufficient strength, rigidity, and stability to withstand long-term effects such as vehicle loads and natural environmental factors (e.g., rainwater, freeze-thaw cycles), preventing settlement, deformation, or damage. Filling materials include gravel, crushed stone, cohesive soil, or fly ash. Layered filling construction, with each layer typically compacted to a thickness of 20-30cm, uses bulldozers, graders, and other equipment to spread the fill material evenly, with a surface flatness deviation of ≤±5cm. In existing technologies, construction equipment generally has only a single function, requiring multiple pieces of equipment to work together during roadbed filling, resulting in low efficiency and increased construction costs. Utility Model Content
[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a roadbed filling device.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: A roadbed filling machine includes an engineering vehicle and a bucket. The front of the engineering vehicle is equipped with a control frame connected to the bucket. The inner side of the bucket is equipped with a scraper, and a drive component corresponding to the scraper is provided on one side of the bucket. The rear of the engineering vehicle is equipped with a blade. The blade has a soil-shoveling arc surface on the side near the engineering vehicle. A pressure roller is provided on one side of the bottom of the blade. The lower surface of the pressure roller is lower than the height of the lower edge of the blade. A control frame is provided between the engineering vehicle and the blade.
[0005] Preferably, the control frame includes a lifting arm and an angle adjustment assembly, the angle adjustment assembly including a connecting rod and a hydraulic rod.
[0006] Preferably, the drive assembly includes a drive motor and a worm gear box, wherein a worm wheel and a worm are rotatably disposed inside the worm gear box, and the output shaft of the drive motor is connected to the worm; a rotating shaft is provided on the scraper, one end of which is connected to the worm wheel, and the worm wheel and the worm are in meshing contact.
[0007] Preferably, the inner wall of the bucket is cylindrical and curved, the rotating shaft is coaxial with the central axis of the cylindrical and curved inner wall of the bucket, the edge of the scraper abuts against the inner wall of the bucket, the scraper is arc-shaped, and a reinforcing rib is provided on the inner side of the arc.
[0008] Preferably, the pressure roller is located behind the shovel, and a limiting connecting rod is provided between the pressure roller and the shovel; the two ends of the limiting connecting rod are respectively rotatably connected to the pressure roller and the shovel, and a telescopic adjusting rod is hinged in the middle of the limiting connecting rod, with one end of the telescopic adjusting rod hinged to the shovel.
[0009] Preferably, the control frame includes a swing arm, a lifting drive rod, and a fixed rod. One end of the swing arm is connected to the blade, and the swing arm, fixed rod, and blade form a triangular structure. One end of the swing arm is hinged to the engineering vehicle, the middle part of the swing arm is hinged to one end of the lifting drive rod, and the other end of the lifting drive rod is hinged to the engineering vehicle.
[0010] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model is equipped with a bucket and a blade at the front and rear of the engineering vehicle, respectively, combining the functions of two engineering machines, a loader and a bulldozer. It is applied to roadbed filling construction. After the filling material is shoveled and filled, the soil is simultaneously bulldozed and leveled, reducing equipment investment and operating costs, facilitating management, and improving construction efficiency. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural schematic diagram of a roadbed filling device proposed in this utility model; Figure 2 This is a schematic diagram of the main structure of a roadbed filling device proposed in this utility model; Figure 3 for Figure 2 A magnified schematic diagram of the partial structure at point A in the middle; Figure 4 This is a schematic diagram of the bucket structure of a roadbed filling machine proposed in this utility model.
[0012] In the diagram: 1. Engineering vehicle; 2. Control frame; 3. Bucket; 31. Drive motor; 32. Worm gearbox; 33. Scraper; 4. Blade; 5. Pressure roller; 51. Limit connecting rod; 52. Telescopic adjusting rod; 6. Control frame; 61. Swing arm; 62. Lifting drive rod; 63. Fixed rod. Detailed Implementation
[0013] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0014] Reference Figure 1-4 A roadbed filling machine includes an engineering vehicle 1 and a bucket 3. The engineering vehicle 1 has a control frame 2 connected to the bucket 3 at the front in the forward direction. The control frame 2 includes a lifting arm and an angle adjustment assembly. One end of the lifting arm is hinged to the bucket 3. The angle adjustment assembly includes a connecting rod and a hydraulic rod. The control frame 2 is the same as the control structure of a conventional loader bucket. A drive device is provided at one end of the lifting arm to control the swing of the lifting arm. At the same time, the hydraulic rod drives the connecting rod to swing, controlling the bucket 3 to swing around one end of the lifting arm, thereby controlling the bucket 3 to move up and down and to flip. The inner wall of the bucket 3 is cylindrical and curved. A scraper 33 is provided on the inner side of the bucket 3. The scraper 33 is arc-shaped, and reinforcing ribs are provided on the inner side of the arc. The scraper 33 is used to clean residual mud and sand inside the bucket 3 to prevent caking. Simultaneously, the scraper 33 divides the bucket 3 into two chambers for storing fill material, allowing for phased filling. Alternatively, the scraper 33 can be positioned near the lower edge of the bucket 3. Figure 4 As shown, open a gap and adjust the discharge rate of bucket 3; A drive assembly corresponding to the scraper 33 is provided on one side of the bucket 3. The drive assembly includes a drive motor 31 and a worm gear box 32. A worm wheel and a worm are rotatably arranged inside the worm gear box 32. The output shaft of the drive motor 31 is connected to the worm. A rotating shaft is provided on the scraper 33. One end of the rotating shaft is connected to the worm wheel. The worm wheel and the worm mesh with each other. The drive motor 31 drives the worm to rotate. The worm wheel and worm gear structure transmits power, which in turn drives the rotating shaft to rotate, controlling the scraper 33 to swing. The rotating shaft is coaxial with the central axis of the cylindrical curved surface of the inner wall of the bucket 3, ensuring that the edge of the scraper 33 abuts against the inner wall of the bucket 3. The scraper 33 has limited load-bearing capacity and is only suitable for auxiliary control of a small amount of fill material. It is used to fill gaps later and to precisely and reliably control the amount of fill material poured. When leveling the fill material pile in the early stage, the scraper 33 can be swung upward and does not participate in the work. The rear of the engineering vehicle 1 is equipped with a shovel 4. When the engineering vehicle 1 moves forward, it shovels and pushes the filling material forward to level the roadbed. The shovel 4 has a shovel surface on the side near the engineering vehicle 1, which is used to gather and push excess shovel soil or mud and sand. In the position of the pit, the shovel soil automatically slides down to fill the pit. A pressure roller 5 is provided on the rear side of the bottom of the shovel 4. The lower surface of the pressure roller 5 is lower than the height of the lower edge of the shovel 4. The pressure roller 5 abuts against the leveled roadbed surface, thereby limiting the height of the shovel 4 and ensuring that the shovel 4 is close to the roadbed surface and slides smoothly forward, avoiding the deep shoveling of the roadbed fill material and causing potholes. A limiting connecting rod 51 is provided between the pressure roller 5 and the shovel 4. The two ends of the limiting connecting rod 51 are rotatably connected to the pressure roller 5 and the shovel 4 respectively. A telescopic adjustment rod 52 is hinged in the middle of the limiting connecting rod 51. One end of the telescopic adjustment rod 52 is hinged to the shovel 4. By adjusting the angle of the limiting connecting rod 51, the relative position of the pressure roller 5 and the shovel 4 is changed, thereby adjusting the shoveling depth of the shovel 4 and ensuring the reliability of leveling. A control frame 6 is provided between the engineering vehicle 1 and the blade 4 for raising or lowering the blade 4. The control frame 6 includes a swing arm 61, a lifting drive rod 62, and a fixed rod 63. One end of the swing arm 61 is connected to the blade 4. The swing arm 61, the fixed rod 63, and the blade 4 form a triangular structure, creating a reliable fixed connection structure. One end of the swing arm 61 is hinged to the engineering vehicle 1, and the middle part of the swing arm 61 is hinged to one end of the lifting drive rod 62. The other end of the lifting drive rod 62 is hinged to the engineering vehicle 1. When it is necessary to level the roadbed, the lifting drive rod 62 can be extended to lower the swing arm 61, thereby bringing the blade 4 closer to the road surface. The pressure roller 5 limits and assists in the movement, thereby leveling the excess parts on the roadbed.
[0015] In this embodiment, after the foundation treatment is completed, layered filling is carried out. The truck dumps the filling material on the construction site, and the engineering vehicle 1 drives the bucket 3 to scoop up the filling material. While moving along the construction line, it dumps and spreads the material, initially laying it on the foundation. The lifting drive rod 62 controls the swing arm 61 to swing downward, the blade 4 is lowered, and the lower surface of the pressure roller 5 abuts against the roadbed surface. As the engineering vehicle 1 moves forward, during the filling construction, the blade 4 flattens the laid filling material. After leveling, the bucket 3 is loaded with a small amount of filler material, which is then pushed out with the assistance of the scraper 33 to fill the pit. Alternatively, the scraper 33 can be placed against the lower side of the bucket 3 to leave a gap, which facilitates the spillage of filler material for subsequent filling and compaction, and makes it easier for the subsequent press to level and compact the material.
[0016] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
[0017] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0018] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
Claims
1. A roadbed filling machine, comprising an engineering vehicle (1) and a bucket (3), characterized in that, The engineering vehicle (1) is equipped with a control frame (2) connected to the bucket (3) at the front. The bucket (3) is equipped with a scraper (33) on the inner side. The bucket (3) is equipped with a drive assembly corresponding to the scraper (33) on one side. The engineering vehicle (1) is equipped with a shovel (4) at the rear. The shovel (4) has a shovel arc surface on the side near the engineering vehicle (1). A pressure roller (5) is provided on the bottom side of the shovel (4). The lower surface of the pressure roller (5) is lower than the height of the lower edge of the shovel (4). A control frame (6) is provided between the engineering vehicle (1) and the shovel (4).
2. The roadbed filling machine according to claim 1, characterized in that, The control frame (2) includes a lifting arm and an angle adjustment assembly, the angle adjustment assembly including a connecting rod and a hydraulic rod.
3. The roadbed filling machine according to claim 1, characterized in that, The drive assembly includes a drive motor (31) and a worm gear box (32). The worm gear box (32) is rotatably equipped with a worm wheel and a worm. The output shaft of the drive motor (31) is connected to the worm. The scraper (33) is provided with a rotating shaft, one end of which is connected to a worm wheel, and the worm wheel meshes with the worm.
4. A roadbed filling machine according to claim 3, characterized in that, The inner wall of the bucket (3) is cylindrical curved. The rotating shaft is coaxial with the central axis of the cylindrical curved inner wall of the bucket (3). The edge of the scraper (33) abuts against the inner wall of the bucket (3). The scraper (33) is arc-shaped and has reinforcing ribs on the inner side of the arc.
5. A roadbed filling machine according to claim 1, characterized in that, The pressure roller (5) is located behind the shovel (4), and a limiting connecting rod (51) is provided between the pressure roller (5) and the shovel (4). The two ends of the limiting connecting rod (51) are rotatably connected to the pressure roller (5) and the shovel (4) respectively. A telescopic adjusting rod (52) is hinged in the middle of the limiting connecting rod (51), and one end of the telescopic adjusting rod (52) is hinged to the shovel (4).
6. A roadbed filling machine according to claim 5, characterized in that, The control frame (6) includes a swing arm (61), a lifting drive rod (62) and a fixed rod (63). One end of the swing arm (61) is connected to the shovel (4). The swing arm (61), the fixed rod (63) and the shovel (4) form a triangular structure. One end of the swing arm (61) is hinged to the engineering vehicle (1), the middle part of the swing arm (61) is hinged to one end of the lifting drive rod (62), and the other end of the lifting drive rod (62) is hinged to the engineering vehicle (1).