A new and old roadbed layered filling and compaction equipment
By designing a layered filling and compaction equipment for new and old roadbeds using cleaning components and mixing racks, the problem of loose bonding caused by dust and impurities accumulation was solved, achieving tight bonding of materials, improving road smoothness and compaction effect, and reducing construction costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA METALLURGICAL ROAD & BRIDGE CONSTR CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-17
AI Technical Summary
During the filling process of existing new and old roadbeds, the accumulation of dust and impurities leads to a loose bond between the new and old roadbeds, forming gaps that affect the smoothness and service life of the road.
Design a layered filling and compaction device for new and old roadbeds, including a cleaning component and a mixing frame. Impurities are cleaned by a push plate, dust is cleaned by a cleaning brush, and impurities are collected by a dust suction pipe. At the same time, the mixing frame and bidirectional spiral conveyor blades are used to mix materials and spray adhesive to achieve a tight bond between the materials.
It enhanced the bonding strength between the old and new roadbeds, improved the flatness and compaction effect of the construction surface, reduced equipment replacement time, saved costs, and improved construction efficiency.
Smart Images

Figure CN224513994U_ABST
Abstract
Claims
1. A layered filling and compaction device for new and old roadbeds, characterized in that: The system includes a road roller (1), a placement frame (2), a storage cylinder (6), a first motor (7), a mixing rack (8), a first transmission assembly (9), a discharge assembly, and a cleaning assembly. The road roller (1) is connected to the upper side of the placement frame (2). The middle and right sides of the placement frame (2) are connected to the storage cylinder (6). The upper side of the storage cylinder (6) on the right side is connected to the first motor (7). The first motor (7) and the processor are electrically connected through a control module. The middle of the storage cylinder (6) is rotatably connected to the mixing rack (8). The mixing rack (8) on the right side is connected to the output shaft of the first motor (7). The upper part of the mixing rack (8) is provided with the first transmission assembly (9). The road roller (1) is provided with a discharge assembly for discharging adhesives and fillers. The road roller (1) and the placement frame (2) are provided with a cleaning assembly for cleaning the old roadbed.
2. The equipment for layered filling and compaction of new and old roadbeds according to claim 1, characterized in that The first transmission assembly (9) includes a first pulley and a first flat belt. The upper part of the stirring frame (8) is connected to the first pulley, and the first flat belt is wound around the first pulley.
3. The equipment for layered filling and compaction of new and old roadbeds according to claim 1, characterized in that: The discharge assembly includes a discharge frame (10), a second motor (11), a bidirectional spiral conveyor blade (12), and a spray nozzle (13). The discharge frame (10) is connected to the right side of the roller (1). The discharge frame (10) is connected to the storage cylinder (6) on the right side. The second motor (11) is connected to the lower front side of the discharge frame (10). The second motor (11) and the processor are electrically connected through the control module. The bidirectional spiral conveyor blade (12) is rotatably connected to the lower part of the discharge frame (10). The bidirectional spiral conveyor blade (12) is connected to the output shaft of the second motor (11). The spray nozzle (13) is connected to the middle of the roller (1). The spray nozzle (13) is connected to the storage cylinder (6) on the left side through a water pump.
4. The equipment for layered filling and compaction of new and old roadbeds according to claim 1, characterized in that: The cleaning assembly includes a push plate (3), a collection box (4), a suction pipe (5), a second transmission assembly (14), a rotating shaft (15), a bevel gear (16), and a cleaning brush (17). The push plate (3) is connected to the left side of the roller (1), and the collection box (4) is connected to the left side of the placement frame (2). The suction pipe (5) is connected to the left side of the collection box (4) via an air pump. The suction pipe (5) is connected to the roller (1). The second transmission assembly (14) is provided between the bidirectional spiral conveyor blade (12) and the rotating shaft (15). The rotating shaft (15) is rotatably connected to the left side of the roller (1). The front and rear cleaning brushes (17) are rotatably connected to the lower left side of the roller (1). The front and rear parts of the rotating shaft (15) are both connected to bevel gears (16). The upper part of the cleaning brushes (17) is also connected to bevel gears (16). The two adjacent bevel gears (16) mesh with each other.
5. The equipment for layered filling and compaction of new and old roadbeds according to claim 4, characterized in that: The push plate (3) is a right angle.
6. The equipment for layered filling and compaction of new and old roadbeds according to claim 4, characterized in that: The second transmission assembly (14) includes a second pulley and a second flat belt. The bidirectional spiral conveyor blade (12) and the front of the rotating shaft (15) are both connected to the second pulley, and the second flat belt is wound between the second pulleys.