GrabCAD 模型信息
Regolith Drum Cartridge Light Weight V2 · 模型 267900
This version is a design comparison to show what is possible. The Stamped version is made from stamped magnesium side plates. 200lb load on Shearing face of Teeth yields a 1.7 Safety Factor. Mass is dropped below 3kg for the Drums. This design could also be adapted for Additive manufacturing. This design is for a cartridge based 3 component drum system. Details: OD: 450mm Overall Width: 359mm Cutting Width: 119.5mm Cutting Edges: 3 Cut depth: aprox. 11mm Mass: Stamped Magnesium 2.847kg(.949kg/Cartridge) Capacity: (note includes 30mm allowance for central drive shaft) See Images for estimated volumes Internal Volume(theoretical maximum, 3 Cartridges): 42 liters(14L/cartridge) Max individual Cartridge Fill Ratio: 99% (scoop at horizontal upside) Minimum Individual Cartridge Fill Ratio: 76% (scoop at bottom) Combined overall Fill ratio: 90% (combined 3 scoops at 120degree offsets(99%, 94%, 76%) Estimated actual Fill Ratio: 80-85%(5-10% less than Theoretical) Materials: Side Plates: Machined T6 Magnesium Drum Shell: T6 Magnesium Scoop Head: T6 Magnesium Teeth: Carbide, Cast Ceramic or Hardened Steel, Machined or Cast, Riveted to Shell(Al Rivets) Construction: Sides and Shell: Welded Scoop and Shell: Welded Scoop and Teeth: Riveted Design Features: Cartridge design: a) allows for quick swap out in the event of damage or obstruction. b) Reduces chance of total loss of function of a unified drum assembly due to damage or obstruction c) simplifies construction while maximizing material properties Welded Construction: Removes need for internal structures to maximize storage and minimize potential build up and blockages Offset design: self regulating depth of cut Single cutting edges: Increase available shearing force Radiused cutting edge: Reduce Digging in, uses a shearing action to remove material rather than an breaking digging action reducing chance of grabbing. Manufacture: Minimum component count(6) Manufacture methods are common and well known Simple and quick assembly of components Additional Notes; Oversize scoop and tunnel vs cutting depth reduce chance of Blockage or jamming approximately 3 times larger than designed depth of cut.
- 格式
- Rendering、STEP / IGES、STL
- 分类
- Aerospace、Machine design、Robotics
- 标签
- nasadrumchallenge
- 数据更新
- 2026-09-30T14:38:09Z