刀座式旋耕刀设计与仿真分析

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中图分类号：S222.3 文献标识码：A 文章编号：2095-2953（2025）09-0046-06

Abstract：The objective of the present studywas to addressthe isses of inadequate tillage depth and congestion resulting from throwing，bydesigning arotary tilagecutter with a 26O mm rotary radius.The Archimedean helix method was employed forthe design of the side cutting edge of therotary tillage cuter.Therotary cutter was designed with aroundedand smooth surface that was over-connected between the front cuting edge and the sidecutting edge to improve the performance of the sliding cut.The cuter material used was 65Mn steel，，and the tools were analyzed statically and mechanically using ANSYS Workbench，respectively.The EDEMdiscrete element simulation software was utilizedontherotarytillage knife toconduct a three-dimensional analysisof soil cuting and throwing.Theresults show that the tool cuts the soil and throws the soil optimally at a speed of 240r/min ，which meets the operational requirements.Furthermore，itwas determinedthat the maximum force position of therotary tilage knife is situated inthesidecuting edge，inclose proximity tothe bending region.This finding provides atheoretical foundation for the optimization of the tool design.

Key words：rotary tiller knife； finite element；discrete element simulation；cutting soil

农业生产是国民经济的基础，提高农机化水平是实现农业现代化的必要措施，旋耕机作为一种高效、节约人力的农业机械，是农田耕作的重要装备[1-2]。（剩余7203字）