This article presents the design of a spiral sampling device to perform lunar soil sampling and packaging, considering the special lunar environment and the physical and mechanical properties of the lunar soil. Combining the mechanical properties of lunar soil and the geometrical characteristics of the sampling device, the contact model between particles and the contact parameters between device and particles were adjusted. Through a discrete element simulation of the sampling process, the particles’ streamline, which is between the screw conveying modules and the sampling bailer, is derived. This result provides a theoretical foundation for the structural optimization of the device. Finally, a sampling experiment in simulated lunar soil verifies the feasibility of the sampling device.

考虑到特殊的月球环境和月球土壤的物理和机械特性，本文提出了一种螺旋采样装置的设计，该装置可以进行月球土壤采样和包装。结合月球土壤的力学性能和采样装置的几何特征，调整了粒子间的接触模型以及粒子间的接触参数。通过对采样过程进行离散元素模拟，得出了螺杆输送模块和采样夹板之间的颗粒流线。该结果为装置的结构优化提供了理论基础。最后，在模拟月球土壤中进行的采样实验验证了该采样装置的可行性。