Double body single chain electric hoist
By setting the fixed wheel shaft and the moving wheel shaft parallel in a double-body single-chain electric hoist, the lifting chain can be turned without 90° rotation, which solves the problem of severe chain wear in traditional double-body hoists, improves the stability and service life of heavy lifting operations, has a compact structure, and is suitable for heavy lifting operations of 40t and above.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG SHUANGNIAO MACHINERY CO LTD
- Filing Date
- 2026-05-09
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional double-body hoists often have their fixed and moving wheel shafts arranged in a spatial cross shape, which requires the lifting chain to turn 90° multiple times, resulting in severe chain wear, short lifespan, and a non-compact structure, making it difficult to meet the requirements of large tonnage and high stability.
The design adopts a dual-body single-chain electric hoist, with the fixed wheel shaft and the moving wheel shaft arranged parallel to each other along the Z-axis. The lifting chain does not turn 90° between rows. Stable operation is achieved through guidance and changing the fixed wheel, ensuring uniform force on the chain. The structure is compact, and chain changing is only achieved on the same horizontal plane.
It significantly reduces the wear of the lifting chain, extends the chain life, reduces the structural span, and improves the smoothness and reliability of operation, making it suitable for large-tonnage lifting operations of 40t and above.
Smart Images
Figure CN122403307A_ABST