GrabCAD 模型信息
NASA Lunar Collector · 模型 256691
NASA Lunar Sampling System Prerequisites: • The collector is mounted on lander or rover handling arm. The interface is adapted to the arm (here as a flange) • A parallel arm system should be inserted so that the collector can keep contact to the surface. For weight reasons, this is not included in the weight indication • The collector may be mounted on a vertical axis swing arm so that it can be driven around and thereby cover a circular area • To minimize the weight, switch between the different containers (here 5) and the chute location, the handling arm is used to push the container row and chute (see below). However, it would be quite easy to add motors or actuators to handle these movements. • An operator is monitoring the flow by camera and is operating the arm/collector remotely Comment added 30/9-2018: 3D-printed the hole assembly in half scale 28/9 to test the function, see note below. - added a STL-file of a stronger screw-helix (Screw -helix thick.STL) 30/9, as the down scaled model was to weak. Video link added 2/10-2018 Contents: • A slanted Screw/helical (20 degree) with progressive pitch and conical end. The outer edges of the screw are fitted with a soft edge made of Teflon, to achieve a certain scraper effect. • A Screw Pipe Housing designed so open that it is possible to follow the movements of the rocks through the screw. The inlet will restrict how big the rocks can be. The front opening will allow 20x20mm and the back opening will allow 10mm high rocks, so depending of which direction, the sampler is moved over the surface, two different restriction are active. Bigger rocks are guided away from the opening holes. • A Sorting Grate located at the end of the screw tube as part of this. The longitudinal ribs of the grate have a growing distance, so that small stones will fall through the grate in its narrow end, while larger stones will be led further up before they fall through the grate. Very small rocks and sand is collected by pushing the chute towards the inlet. • An open Chute-tube that can be moved in the longitudinal direction of the grate so that the chute opening can be placed under the desired grate opening, and so that stone sizes up to the grate size can pass into the container. • A Container Magazine, where a number of containers (here 5 pcs.) can be placed in. The magazine is placed underneath the chute's opening and can be slided so that each container can be placed underneath the chute. • 5 Containers with a stop ...
- 格式
- STL、Rendering、Other
- 分类
- 3D printing、Machine design、Tech
- 标签
- nasalunarsampling、3d-print、screw-helix、lunar
- 数据更新
- 2026-09-10T11:55:56Z