GrabCAD 模型信息
Grate, Rake, and Kevlar Hinge Doors in RASSOR Drum for Improved Efficiency and Performance · 模型 267807
NOTES: - The gif. after the presentation has no thumbnail but it is working, please click on it first to see. - The doors on the model is simply for illustration purpose, it cannot be simulated because it is fixed in place - '80%' on the presentation should be '70-80%' Design Summary: The design purpose is to met the design requirement from the competition description and the paper that is included on the description. The design goals are as follows: - Meet the dimension requirement - Manufacture-able and functional - Last for at least 5 years - Prevent icy regolith (equivalent as damped sand on earth) to stuck on the scoop - Successfully exclude rocks of certain size from entering the bucket - Maximum weight of 5kg Based on that, I've created this design. The design is able to: - prevent rock larger than 1cm in diameter to enter, - eliminate cohesion of icy regolith prior to entering the scoop, - able to retain whats inside the bucket when on a trip back to the lander for about 8.5 minutes - all parts that is expected to wear out will be replaceable - manufacturing is possible, as explained on the pictures - assembly is possible, as can be seen on the gif. - structural integrity Weight of the bucket in total is about 4.5kg. Dimension of the drum has already fulfilled the dimension requirement, with max. diameter of 450mm with scoop, 340mm without scoop, with length of 360mm, and maximum engaged scoop at any given time 175mm. It will be able to AT LEAST collect 22L of regolith in one mining cycle, with AT LEAST 80% full. To make it reach at least 80% full I use doors to prevent regolith from falling out, the doors only located in 1 or 2 scoop in each segment. To keep the mining cycle fast, the other scoop that has no doors will have larger outlet, so it catches more regolith as it rotates backward, thus creating faster unloading on that scoop. Will the mining cycle be faster? I don't know, but using this system will allow it to be more effective, as regolith lost is minimal, with still three scoops on each segment, keeping the time of mining fast. It uses marker so the operator can control the position of the bucket for maximum regolith volume retained. The scoop that has no doors will not be functioning as good as the one with doors when RASSOR is mining. The reason is that when its reaches about 30-40% full, regolith will start to fall into the scoop cavity, so the regolith will not be that much since the way is blocked by the fallin...
- 格式
- Rendering、STL、Other
- 分类
- Aerospace、Just for fun、Tech
- 标签
- nasa、moon、aerospace、robots、nasadrumchallenge
- 数据更新
- 2026-10-23T05:30:33Z