GrabCAD 模型信息
NASA - RASSOR _ Regolith collector drum (re-uploaded) · 模型 67243
The drum comprises three disks put together via a set of spacers. Between the said disks, are the outer shields, meant to create the drum by joining with the given slots. The design is intended to use very few elements (the disks, the shields, the flappers and the spacers) for easier manufacturing and especially for low volume while transported. Onto each peripheric spacer is a flapper, having the role to close the entry into the drum after the scoop excavated the required amount of regoliths. The model doesn't show the way the flappers are driven,, by purpose - so not disclose the simplicity of the mechanism at the moment :( In the finished design :( , the lower flappers are allowed to freely move while the drum excavates, and blocked when it passed the working position. This way it is created a semi-closed drum, with only the area of working excavation opened, leading to higher retention of the regoliths. In the reverse movement, when necessary to unload the drum, the cam will be positioned in such a way to open the bottom flapper thus, allowing unloading. On the contest holder or Grabcad admin request, I will reveal the driving mechanism (which is extremely simple). Because the way it is designed, the drum has an increased structural resistance but it is lightweight - 3.75kg Each shield has a series of holes so different excavating tips could be mounted and replaced, as required by the soil conditions. Because of the way it works, the drum has a retention of more than 75% of the collected regoliths. I consider it to be one of the simplest and efficient models... Please keep count this is a conceptual model, not DFP or DFM. (as Filip Šabacký observed :) ) in the current design, the total width of the scoops are larger than the required maximum - 175mm. to fix this, the disks will be divided into 12 sectors, and the scoops - 6 on each half of the drum, will be placed alternately, and eventually, the drum could be split in 3 parts instead of two.
- 格式
- Autodesk Inventor、STL、STEP / IGES、Rendering、Other
- 分类
- Aerospace、Industrial design、Military
- 标签
- nasadrumchallenge、efficient、scalable、modular、inventor、challenge、nasa
- 数据更新
- 2026-09-21T11:26:27Z
