Design and experiment of double-disc combined soil covering device for peanut seeding machine

WANG Yan; ZHANG Chun-yan; ZHANG Guo-hai; ZHANG Jia-lei; WAN Shu-bo; ZHANG Zheng; ZHANG Yue; KANG Jian-ming

doi:10.19802/j.issn.1007-9084.2025277

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Design and experiment of double-disc combined soil covering device for peanut seeding machine

更新时间：2026-10-31

- Design and experiment of double-disc combined soil covering device for peanut seeding machine
- Chinese Journal of Oil Crop Sciences Vol. 48, Issue 4, Pages: 226-235(2026)
- 作者机构：
  
  1.山东理工大学农业工程与食品科学学院，山东淄博，255000
  2.山东省农业机械科学研究院山东济南，250100
  3.山东省丘陵山区智慧农业装备重点实验室，山东济南，250100
  4.山东省农业科学院，山东济南，250100
  5.聊城大学机械与汽车工程学院，山东聊城，252059
- 作者简介：
- 基金信息：
- DOI：10.19802/j.issn.1007-9084.2025277
  CLC： S223.2
- Received：09 December 2025，
  
  Published：25 August 2026
- 稿件说明：
移动端阅览
王岩,张春艳,张国海等.花生播种机双圆盘组合式覆土装置设计与试验[J].中国油料作物学报,2026,48(04):226-235.

WANG Yan,ZHANG Chun-yan,ZHANG Guo-hai,et al.Design and experiment of double-disc combined soil covering device for peanut seeding machine[J].Chinese Journal of Oil Crop Sciences,2026,48(04):226-235.
王岩,张春艳,张国海等.花生播种机双圆盘组合式覆土装置设计与试验[J].中国油料作物学报,2026,48(04):226-235. DOI： 10.19802/j.issn.1007-9084.2025277.

WANG Yan,ZHANG Chun-yan,ZHANG Guo-hai,et al.Design and experiment of double-disc combined soil covering device for peanut seeding machine[J].Chinese Journal of Oil Crop Sciences,2026,48(04):226-235. DOI： 10.19802/j.issn.1007-9084.2025277.

摘要

针对花生膜上打孔播种机覆土装置在工作过程中覆土不均匀，易造成种子裸露、晾种的问题，设计一种双圆盘组合式覆土装置，将覆土圆盘与覆土滚筒相结合，提升覆土均匀性。分析了双圆盘组合式覆土装置在覆土作业时的运动状态，结合覆土装置作业时土壤的运动学分析，得到了影响覆土性能的关键结构参数。借助EDEM仿真软件，建立了覆土装置与土壤的仿真模型，探究了不同参数对覆土装置作业性能的影响规律，确定了覆土滚筒导土片数量，优化了覆土装置的关键结构参数范围，以作业速度、覆土口宽度、导土片偏转角为试验因素，以覆土均匀性变异系数为评价指标进行Box-Behnken试验，确定了双圆盘组合式覆土装置最佳工作参数为作业速度3.9 km/h、覆土口宽度75 mm、导土片偏转角45°。设置播种机平均作业速度为3.9 km/h进行田间试验，田间试验结果表明，在最优工作参数下，覆土均匀性变异系数小于8%，满足花生膜上打孔播种覆土作业要求，能够改善播种机覆土性能。

Abstract

To address the issue of uneven soil covering by the peanut film seeder's soil covering device during operation

which lead to exposed seeds and seed drying

a double-disc combined soil covering device is designed. The device combines soil covering disc with soil covering roller to enhance the uniformity of soil covering. The motion state of the double-disc combined soil covering device during soil covering operation was analyzed

and the key structural parameters affecting soil covering performance were obtained by combining the kinematic analysis of the soil during operation. With the help of a EDEM simulation software

a simulation model of soil covering device was established to explore the influence of different parameters on operation performance of the soil covering device. The number of soil guiding plates of the soil covering roller was determined

and the key structural parameter range of the device was optimized. Taking the operation speed

soil covering port width

and soil guiding plate deflection angle as the test factors and the coefficient of variation of soil covering uniformity as the evaluation index

a Box-Behnken test was conducted

and the optimal working parameters of the double-disc combined soil covering device were determined as an operation speed of 3.9 km/h

a soil covering port width of 75 mm

and a soil guiding plate deflection angle of 45. Field tests were conducted with the average operation speed set at 3.9 km/h. The field test results showed that under the optimal working parameters

the coefficient of variation of soil covering uniformity was less than 8%

meeting the requirements of soil covering operation on peanut film seeding

and could improve soil covering performance of the seeding machine

contributing to the increase of large-scale peanut yield per unit area.

关键词

Keywords

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