GrabCAD 模型信息
All-Terrain Tracked Wheelchair (Planetary Hub Gear Reduction) · 模型 38006
Here is my concept for a hand driven all-terrain tracked wheelchair. The Track assemblies are attached to a standard collapsible wheelchair frame. The hand wheels drive the input shaft of the Nuvinci CVT or Shimano Alfine 11-speed planetary hub transmission. These provide between 380% to 408% gear selection so the user is capable of eaisly turning or ascending steep grades in the low range, while still being able to maintain a decent speed on flat ground in the high range. The leaf spring suspension maintains a soft ride while providing a small contact patch in the center of the track assembly to reduce turning friction. The rubber tracks are the VTR-050 lightweight robot tracks from VercoTrack. Hopefully this tracked wheelchair concept will bring the fabrication cost down dramatically compared to my original Articulating All-Terrain Tracked Wheelchair Design so that it would be more reasonable for people to fabricate or purchase in the future.
- 格式
- STEP / IGES、SOLIDWORKS、Parasolid
- 分类
- Just for fun、Medical、Tech
- 标签
- hand powered、gear reduction、planetary hub、cvp、cvt、tracks、off-road、all-terrain、wheelchair
- 数据更新
- 2026-08-15T22:15:07Z
