中国水稻科学 ›› 2026, Vol. 40 ›› Issue (6): 838-848.DOI: 10.16819/j.1001-7216.2026.250705

• 研究报告 • 上一篇    

杂交稻制种作业授粉后父本收割装置设计与试验

曾志军1,2, 陈雄飞1,2, 林金龙1,2, 蔡金平1,2, 肖丽萍1,2,*(), 李永辉3, 林逸航1, 苗科淏1   

  1. 1 江西农业大学 工学院, 南昌 330045
    2 现代农业装备江西省重点实验室, 南昌 330045
    3 江西省农业科学院 超级水稻研究发展中心, 南昌 333104
  • 收稿日期:2025-07-15 修回日期:2025-09-23 出版日期:2026-11-10 发布日期:2026-11-09
  • 通讯作者: *email: xiaolipingyzx@jxau.edu.cn
  • 基金资助:
    江西省重点研发计划资助项目(20223BBF61025)

Development and Experiment of a Post-pollination Male Parent Harvester for Hybrid Rice Seed Production

ZENG Zhijun1,2, CHEN Xiongfei1,2, LIN Jinlong1,2, CAI Jinping1,2, XIAO Liping1,2,*(), LI Yonghui3, LIN Yihang1, MIAO Kehao1   

  1. 1 College of Engineering, Jiangxi Agricultural University, Nanchang 330045, China
    2 Jiangxi Provincial Key Laboratory of Modern Agricultural Equipment, Nanchang 330045, China
    3 Super Rice Research and Development Center of Jiangxi Academy of Agricultural Sciences, Nanchang 333104, China
  • Received:2025-07-15 Revised:2025-09-23 Online:2026-11-10 Published:2026-11-09

摘要:

【目的】实现小行比种植模式下杂交稻制种作业授粉后父本的机械化收割。【方法】设计了一种由双刀盘切断机构、同步带夹持喂入机构、对辊螺旋夹持下拉机构和螺旋式滚刀切碎机构等部分组成的杂交稻制种作业授粉后父本收割装置,并开展各机构的工作性能试验和田间试验。【结果】当前进速度为0.2 m/s、切断双刀片重叠率4.14%、割刀转速≥650 r/min时,双刀盘切断成功率最高可达100%;同步带夹持喂入机构夹持厚度10 mm时,喂入成功率最高87.5%;双滚筒夹持下拉机构长度200 mm、螺纹导条角度30°、滚筒转速300 r/min时茎秆下拉成功率97.5%,工作性能最佳;螺旋式滚刀切碎机构在长度200 mm、转速200~300 r/min时,切碎成功率可达96.5%,且撒落距离符合农艺要求。【结论】田间试验结果表明父本秸秆切断成功率平均为99.52%,切碎成功率平均为90.59%,收割效果佳。

关键词: 父本收割, 双刀盘切割, 同步带夹持喂入, 对辊螺旋下拉, 螺旋式切碎

Abstract:

【Objective】To realize the mechanized harvesting of male parents after pollination in hybrid rice seed production under a small row ratio planting mode,【Method】a male parent harvesting device for hybrid rice seed production was designed, which was composed of a double cutterhead cutting mechanism, a synchronous belt clamping and feeding mechanism, a double-roller spiral clamping and pulling mechanism and a spiral hob chopping mechanism, and the working performance test and field test of each mechanism were carried out.【Result】When the forward speed is 0.2 m/s, the overlap rate of double cutting blades is 4.14%, and the cutter speed is not less than 650 r/min, the cutting success rate of the double cutterhead can reach 100%. When the clamping thickness of the synchronous belt clamping feeding mechanism is 10 mm, the feeding success rate is up to 87.5%. When the length of the double drum clamping and pulling mechanism is 200 mm, the angle of the spiral guide bar is 30°, and the drum speed is 300 r/min, the stem pull-down success rate is 97.5%, and the working performance is the best. When the length of the spiral hob chopping mechanism is 200 mm and the speed is 200-300 r/min, the success rate of chopping can reach 96.5%, and the scattering distance meets the agronomic requirements.【Conclusion】The results of field experiment showed that the average chopping success rate of male parent straw was 99.52%, the average cutting success rate was 90.59%, and the harvesting effect was good.

Key words: male parent harvest, double-cutterhead cutting, synchronous belt clamping feeding, screw down the roller, spiral chopping