一种轧机AGC液压缸更换小车装置
By designing a hydraulic cylinder replacement trolley device for the rolling mill AGC, and utilizing deep groove wheel flange traveling wheels and lifting ring structures, the safety hazards and time waste problems in the hydraulic cylinder replacement process inside the rolling mill were solved, achieving an efficient and safe replacement process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI YONGSHUO NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-07-27
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the replacement process of the hydraulic cylinder of the rolling mill AGC is cumbersome, time-consuming and has high safety hazards, especially when operated in a narrow space, which can easily cause accidents and affect production efficiency and safety.
Design a rolling mill AGC hydraulic cylinder changing trolley device, including a support frame and a traveling structure. Utilizing deep groove wheel flange traveling wheels and lifting rings, the trolley can achieve stable movement and balanced traction on the rolling mill track, avoid derailment, and simplify the hydraulic cylinder reversing process.
It significantly shortens the replacement time of AGC hydraulic cylinders, reduces safety hazards, improves replacement efficiency, basically eliminates the probability of accidents, and ensures the continuity and safety of production.
Smart Images

Figure CN224512987U_ABST
Abstract
Claims
1. A rolling mill AGC hydraulic cylinder replacement trolley device, characterized by, Including support frame structure and walking structure; The support frame structure includes two first support frames (2) and two second support frames (3). The first support frames (2) and the second support frames (3) are welded together by longitudinal beams to form an upper and lower frame. The lower second support frame (3) is used to install the wheel axle (4), and the upper first support frame (2) forms a support platform for carrying the AGC hydraulic cylinder (1). The walking structure includes two axles (4) and four walking wheels (6). The two axles (4) are fixed parallel to each other on the bottom surface of the second support frame (3). The four walking wheels (6) are respectively set at the ends of the two axles (4) through bearings, and the distance between the two walking wheels (6) is equal to the distance of the track (5). The two sides of the walking wheels (6) are provided with deep groove rims with a rim height of 20-25mm and an inner inclination angle of 60°, which are used to engage the edge of the rolling mill track and prevent the curve from derailing. The front and rear end faces of the second support frame (3) are each provided with a lifting ring (7), and the front and rear lifting rings (7) are respectively connected to traction ropes.
2. The rolling mill AGC hydraulic cylinder replacement trolley device according to claim 1, characterized in that, The second support frame (3) has symmetrical lifting rings (7) on both sides of the front and rear end faces, and the lifting rings (7) on the front and rear end faces are respectively connected to the traction ropes.
3. The rolling mill AGC hydraulic cylinder replacement trolley device according to claim 1, characterized in that, The rim surface of the walking wheel (6) is hardened to a hardness ≥ HRC45.