公路养护用碎石筛分装置
By combining the tilting rotating screening cylinder with the crushing mechanism, the problem of low screening efficiency in existing devices is solved, achieving efficient grading and resource reuse of crushed stone, and improving the construction efficiency and cost-effectiveness of highway maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN CHENGXIN HIGHWAY ENGINEERING CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing gravel screening devices for highway maintenance have low screening efficiency and are difficult to classify quickly, especially when processing large quantities of gravel, which affects the construction progress.
The screen uses an inclined rotating screening cylinder, which combines centrifugal force and tumbling effect. The screening gap is formed by the difference in the number of crossbars on the side plates, and a hammer is provided to prevent clogging. At the same time, a crushing mechanism is set in the hopper to handle unqualified crushed stone.
It improves screening efficiency, enables precise grading of coarse and fine materials, reduces downtime for maintenance, enhances overall operational efficiency, increases resource utilization, and reduces maintenance costs.
Smart Images
Figure CN224507550U_ABST
Abstract
Claims
1. A highway maintenance gravel screening device, comprising a barrel (1), the barrel (1) is provided with a feeding hopper (2) on the side wall, a lower hopper (4) is arranged at the lower end, and a screening barrel (3) is arranged inside, characterized in that: The screening cylinder (3) is composed of a side plate 1, a side plate 2 and a ring. The ring is connected to the side plate 1 and the side plate 2 respectively by crossbars. The number of crossbars between the side plate 1 and the ring is greater than that between the side plate 2 and the ring, and all crossbars are evenly distributed along the circumference. The side plate 2 is rotatably connected to the cylinder (1) through a bearing. A gear ring (31) is fixedly installed on its outer wall. The gear ring (31) meshes with a gear. The gear is driven by a motor 1, which in turn drives the side plate 2 to make a circular motion around the axis of the cylinder (1).
2. A chip screen for road maintenance according to claim 1, characterized in that: The second side plate is rotatably connected to the cylinder (1) via a bearing, and a fixing ring (32) is fixedly assembled on its outer wall. The outer peripheral wall of the fixing ring (32) is provided with protrusions (33) at equal intervals. Each protrusion (33) is evenly distributed along the circumferential direction of the fixing ring (32) to form a regular ring array structure.
3. The highway maintenance macadam screening device according to claim 1, characterized in that: The hopper (4) in the lower region between the ring and the second side plate has a crushing mechanism inside, which consists of two sets of crushing rollers (41).
4. A highway maintenance macadam screening apparatus according to claim 3, characterised in that: Both sets of crushing rollers (41) are equipped with transmission gears (42) at their ends, and the gears mesh with each other to form a transmission relationship. One set of crushing rollers (41) is driven by motor 2, and drives the other set of crushing rollers (41) to rotate in the opposite direction through gear transmission, so as to crush the crushed stone.
5. The highway maintenance macadam screening apparatus of claim 1, wherein: The outer wall of the feed hopper (2) is fitted with a hinge rod (21) via a hinge shaft. A tension spring (22) is connected between the hinge rod (21) and the outer wall of the feed hopper (2) to keep it in its initial reset state. A hammer head (24) is provided on the outer side of the hinge rod (21), and a protruding rod (23) extends from the end.
6. The highway maintenance macadam screening apparatus of claim 1, wherein: The cylinder (1) and its internal screening cylinder (3) are inclined to the horizontal plane.