针对早期研制的锄草机在使用中伤苗严重、苗间草锄不净以及药物灭草对动、植物带来的影响和潜在危机等问题，研究了一种新型中耕锄草机具。该机以偏心弹性梳齿为主要工作部件，利用作物与杂草根系发育差异大的特性，定期锄草，同时根据需要定期中耕。笔者对这种旋转偏心弹齿式苗间中耕锄草机的总体设计、传动机构及弹齿结构尺寸等进行了论述；对该机的作业效果进行了理论分析。 Aiming at the problems of the earlier developed weeding machine, such as the heavy injury in use, the uncleanness of the grass hoe in the seedling, the influence and the potential crisis caused by the herbicide weed on the animals and plants, a new cultivating and hoeing equipment was studied. The eccentric eccentric combs as the main working parts, the use of crop and weed root development of large differences in characteristics, weeding regularly, at the same time as needed regular cultivation. The author discusses the overall design, the transmission mechanism and the size of the elastic tooth structure of this kind of rotating eccentric tooth spring seedling weeding machine; and analyzes the operating effect of this machine theoretically.