GrabCAD
NASA Simplified Collector
by GrabCAD
Last crawled date: 1 year, 11 months ago
This concept is very simple consisting of aluminum and plastic parts. It's designed to be used on a robotic arm. Currently, the design uses laser cut sheet metal parts held together by nuts and bolts. Perhaps spot welding would be better to save some weight and for simplicity. Also, using aluminum rods and joints could save additional weight. The plastic parts are the sample container holder and compaction assembly.
The operating principle is using a robotic arm to push the sample collector forward to scoop up regoith material up the cylinder. The cylinder could be coated with Teflon to reduce fiction of the regolith. A vibration motor sieves out the desired material into the sample container. Excess regolith larger than 2 cm will continue to travel past the filter and falls off the back of the chute.
The compaction assembly consists of a sample container holder suspended by 4 tension springs and compacted and by a vibration motor to get the desired result.
For the vibration motors, I chose to use a brushed dc motor of power approximately 1.5 W. Total power will be less than 3 W. https://www.amazon.com/dp/B00977HHVW/ref=twister_B07GR6KJSP?th=1
The compaction assembly ensured that fine/loose regolith and rocks less than 2 cm are nicely packed in the sample container until the mass and volume requirements are met.
Samples only come in contact with aluminum components and the stoppers at the front of the unit ensures that samples are collected in the upper 10 cm of lunar regolith.
A camera can be positioned at the back of the unit that views the sample before depositing. The contents of the sample container can also be easily seen.
It is possible to complete the collection process in a few minutes. My concept is not affected by temperature or hard vacuum. The electrical connector is connected to the robotic arm for power.
Thanks to NASA and GrabCad for this design exercise, I really enjoyed it. Good luck to everyone and if you like my concept, don't forget to click the like button. :)
Check out my other model:
https://grabcad.com/library/nasa-regolith-collector-1
The operating principle is using a robotic arm to push the sample collector forward to scoop up regoith material up the cylinder. The cylinder could be coated with Teflon to reduce fiction of the regolith. A vibration motor sieves out the desired material into the sample container. Excess regolith larger than 2 cm will continue to travel past the filter and falls off the back of the chute.
The compaction assembly consists of a sample container holder suspended by 4 tension springs and compacted and by a vibration motor to get the desired result.
For the vibration motors, I chose to use a brushed dc motor of power approximately 1.5 W. Total power will be less than 3 W. https://www.amazon.com/dp/B00977HHVW/ref=twister_B07GR6KJSP?th=1
The compaction assembly ensured that fine/loose regolith and rocks less than 2 cm are nicely packed in the sample container until the mass and volume requirements are met.
Samples only come in contact with aluminum components and the stoppers at the front of the unit ensures that samples are collected in the upper 10 cm of lunar regolith.
A camera can be positioned at the back of the unit that views the sample before depositing. The contents of the sample container can also be easily seen.
It is possible to complete the collection process in a few minutes. My concept is not affected by temperature or hard vacuum. The electrical connector is connected to the robotic arm for power.
Thanks to NASA and GrabCad for this design exercise, I really enjoyed it. Good luck to everyone and if you like my concept, don't forget to click the like button. :)
Check out my other model:
https://grabcad.com/library/nasa-regolith-collector-1
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