吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (4): 1149-1158.doi: 10.13229/j.cnki.jdxbgxb201704020

• Orginal Article • Previous Articles     Next Articles

Structure design of lunar subsurface sampling drill

ZHAO De-ming, JIANG Sheng-yuan, TANG De-wei, HOU Xu-yan, DENG Zong-quan   

  1. Research Center of Aerospace Mechanism and Control, Harbin Institute of Technology, Harbin 150001,China
  • Received:2016-03-29 Online:2017-07-20 Published:2017-07-20

Abstract: The sub-structures of drill bit are defined based on the function, and the optimization of the chip removing structure is taken as the key of shape-configuring design of the drill bit. A new drill shape-configuring design with spherical base and spiral blade is proposed. Experimental results show that the pay load of drill bit with the new chip removing structure is only 30% ~ 40% of the other typical drill bit forms. The gravels removing mechanism is studied using Discrete Element Method (DEM), and the results show that the new drill bit structure is more adaptable.

Key words: mechanical design, lunar soil sampling, auger drill design, chip removing structure

CLC Number: 

  • TH122
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