crane
By setting up clearance space on the bottom platform of the crane and optimizing the guide pulley system, the interference problem between the superlift mast and the winch mechanism during the descent of the superlift mast was solved, enabling ground maintenance of the superlift mast, reducing safety risks and improving maintenance efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG SANY EQUIPMENT CO LTD
- Filing Date
- 2026-05-20
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the super-lift mast is prone to interference with the winch mechanism of the crane's bottom platform during descent, making it impossible to lower to a lower angle and increasing the safety risks of high-altitude maintenance.
Design a crane that, by setting clearance space on the bottom platform, ensures that the boom of the super-lift mast does not interfere with the winch mechanism, achieves parallel operation of the boom and bottom platform in the second working condition, allows the super-lift mast to be lowered to 0°, and optimizes the layout of the connecting ropes through guide pulley blocks to reduce interference.
This technology enables maintenance of the mast from the ground, reducing the safety risks of working at heights and improving the safety and efficiency of maintenance.
Smart Images

Figure CN122403306A_ABST