玉米免耕播种机动力补偿自适应清秸装置设计与试验
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国家重点研发计划项目(2021YFD2000401-2)、山东省中小企业创新能力提升工程项目(2023TSGC0339)、山东省农业重大技术协同推广计划项目(SDNYXTTG-2024-03)和山东省自然科学基金项目(ZR2022QE150)


Design and Experiment of Dynamic Compensation Adaptive Straw Removal Device for Corn No-till Seeder
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    摘要:

    针对黄淮海两熟区麦茬地秸秆覆盖量大、切碎质量差、根茬处理难,传统玉米免耕播种机清秸清茬效果有限,能耗高,高速作业易拥堵等问题,设计了动力补偿自适应清秸装置。通过分析清秸盘前倾角和安装夹角、作业速度和清秸盘转速等参数对清秸作业效果的影响,确定了清秸装置结构参数和运动参数的取值范围。以作业速度、清秸盘转速和安装夹角为试验因素,以种床清秸率和作业功耗为试验指标,通过EDEM离散元仿真软件,对不同参数下清秸装置作业进行仿真对比,确定了各参数对清秸装置性能的影响规律。设计了被动清秸和主动清秸结合的动力补偿自适应控制系统,进行田间试验,结果表明:当出现拥堵时,清秸装置能够及时进行动力补偿,进入主动清秸作业状态,解决拥堵;作业速度为12 km/h、清秸盘安装夹角为67.5°、清秸盘转速为130 r/min、入秸入土深度为55 mm时,平均种床清秸率为88.93%,最高达91.33%,较完全主动清秸方式节省功耗43.50%以上,作业幅宽满足黄淮海两熟区免耕播种作业要求。

    Abstract:

    Corn no-till seeding in the wheat stubble field of Huang-Huai-Hai double-cropping area was facilitated the problems of large amount of straw covered, poor quality cutting and difficult stubble treatment. However, the performance of removing stubble by traditional corn no-tillage planter was limited, results in easy congestion in high-speed operation and high energy consumption. A dynamic compensation adaptive straw removal device was designed. By analyzing the influence of front tilt angle, installation angle, working speed and rotating speed of the cleaning tray on the cleaning effect, the value range of the structure parameters and motion parameters of the straw removal device were determined. With the operation speed, rotation speed and installation angle as test factors, and the removal rate and power consumption as test indexes, the operation of the straw removal device under different parameters was simulated and compared by using EDEM discrete element simulation software, and the influence rule of each parameter on the performance of the straw removal device was determined. Meanwhile, a dynamic compensation adaptive control system combining passive and active straw clearing was designed and field experiments were carried out. The results showed that when congestion occurred, the dynamic compensation in the straw removal device was carried out and the device entered the active stubble clearing mode automatically. While the straw removal device was dived by electric machine and the congestion of straw removal device could be solved in time. When the operation speed was 12 km/h, the installation angle of the two straw tray was 67.5°, the rotation speed of the straw tray was 130 r/min, and the depth of straw insertion was 55 mm, the average straw removal rate was 88.93% and the maximum was 91.33%. However, the power dissipation was lower 43.50% than that of the completely active straw removal mode and the operation width met the requirement of no-tillage sowing. The research result can provide an idea for the design of high speed corn no-till planter in Huang-Huai-Hai double-cropping area.

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张银平,郝泽华,徐婷,刁培松,周华,梅文凯.玉米免耕播种机动力补偿自适应清秸装置设计与试验[J].农业机械学报,2025,56(1):174-185. ZHANG Yinping, HAO Zehua, XU Ting, DIAO Peisong, ZHOU Hua, MEI Wenkai. Design and Experiment of Dynamic Compensation Adaptive Straw Removal Device for Corn No-till Seeder[J]. Transactions of the Chinese Society for Agricultural Machinery,2025,56(1):174-185.

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  • 收稿日期:2024-09-06
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  • 在线发布日期: 2025-01-10
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