biostudies-literatureZhao LChongqing Yongchuan District Talent ProgramChongqing Municipal Bureau of Science and Technology Excellence ProgramChongqing Municipal Technology Innovation and Application Development Specialized Key Projectse0313285https://www.ebi.ac.uk/biostudies/studies/S-EPMC11908703biostudies-literatureUnknown20(3)In response to issues such as high miss-seeding rates and uneven seed grain distribution during the operation of the pendulum-lever camshaft hole seeders under the compound planting mode of corn and soybeans in hilly mountainous areas, a method for optimizing the hole seeders by adjusting movable pendulum-lever angle and the number of cam roller groups is proposed. By analyzing the motion process and mechanism of hole formation of the hole-forming device, it was possible to elucidate the influence of the movable pendulum-lever angle and cam roller group number on the improvement of seeding quality. Based on the DEM-MBD coupled simulation, single-factor simulation experiments were conducted using the hole seeders shaft speed, movable pendulum- lever angle, and cam roller group number as tesPloS oneOptimization design and experiment of key components of mountain pendulum-lever cam type hole seeders based on DEM-MBD coupling simulation.PMC11908703202405200320231102cstc2021jscx-gksbX0013Yin WZhao LLi ZLi SHu XYang BGong LLi QLiu CLi BfalseOptimization design and experiment of key components of mountain pendulum-lever cam type hole seeders based on DEM-MBD coupling simulation.In response to issues such as high miss-seeding rates and uneven seed grain distribution during the operation of the pendulum-lever camshaft hole seeders under the compound planting mode of corn and soybeans in hilly mountainous areas, a method for optimizing the hole seeders by adjusting movable pendulum-lever angle and the number of cam roller groups is proposed. By analyzing the motion process and mechanism of hole formation of the hole-forming device, it was possible to elucidate the influence of the movable pendulum-lever angle and cam roller group number on the improvement of seeding quality. Based on the DEM-MBD coupled simulation, single-factor simulation experiments were conducted using the hole seeders shaft speed, movable pendulum- lever angle, and cam roller group number as tes2025-01-01T00:00:00Z20252026-07-16T03:10:49.641Z2025-04-05T12:38:30.331ZS-EPMC119087034008553510.1371/journal.pone.0313285