行间免耕播种机防堵装置设计与试验

针对行间互作和宽窄行交替休闲2种保护性耕作模式缺少配套免耕播种机的现状,该文设计了一种适用于行间互作模式和宽窄行交替休闲模式的免耕播种机防堵装置,其采用组合刀片式结构,具有作业功耗小、秸秆切断率高等优点。通过理论建模和动力学分析相结合的方法对其关键部件秸秆滑切刀片滑切秸秆的过程进行研究,得出秸秆滑切刀片侧切刃最优曲线应为一条等滑切角曲线。通过三因素三水平正交组合试验得出秸秆滑切刀片的最佳参数组合为：作业速度2.1 m/s、耕作深度35 mm、刀片回旋半径为185 mm,并进行验证试验得出秸秆切断率为90.9%,单把刀片功耗为8.15 W。该研究可为适用于行间互作或宽窄行交替休闲耕作模式的免耕播...

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Bibliographic Details
Published in农业工程学报 Vol. 29; no. 18; pp. 16 - 25
Main Author 贾洪雷 赵佳乐 姜鑫铭 姜铁军 王玉 郭慧
Format Journal Article
LanguageChinese
Published 吉林大学工程仿生教育部重点实验室,长春,130025%吉林大学生物与农业工程学院,长春,130025 2013
Subjects
免耕防堵
农业机械
功耗
滑切角
秸秆
设计
试验
agricultural machinery
秸秆
免耕防堵
anti-blocking mechanism
试验
experiments
straw
power consumption
slide cutting angle
设计
功耗
滑切角
design
农业机械
Online AccessGet full text
ISSN1002-6819
DOI10.3969/j.issn.1002-6819.2013.18.003

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Summary:针对行间互作和宽窄行交替休闲2种保护性耕作模式缺少配套免耕播种机的现状,该文设计了一种适用于行间互作模式和宽窄行交替休闲模式的免耕播种机防堵装置,其采用组合刀片式结构,具有作业功耗小、秸秆切断率高等优点。通过理论建模和动力学分析相结合的方法对其关键部件秸秆滑切刀片滑切秸秆的过程进行研究,得出秸秆滑切刀片侧切刃最优曲线应为一条等滑切角曲线。通过三因素三水平正交组合试验得出秸秆滑切刀片的最佳参数组合为：作业速度2.1 m/s、耕作深度35 mm、刀片回旋半径为185 mm,并进行验证试验得出秸秆切断率为90.9%,单把刀片功耗为8.15 W。该研究可为适用于行间互作或宽窄行交替休闲耕作模式的免耕播种机设计提供参考。
Bibliography:Jia Honglei, Zhao Jiale, Jiang Xinming, Jiang Tiejun, Wang Yu, Guo Hui （1. Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130025, China; 2. School of Biological and Agricultural Engineering, Jilin University, Changchun 130025, China）
11-2047/S
An anti-blocking mechanism for no-tillage planters was designed, which is suitable to two kinds of tillage modes in Jilin Province： in-row and inter-row tilling alternately and wide-row and narrow-row fallowing alternately. The anti-blocking mechanism, which works in a passive way, is placed in front of the opener and has a combined blades structure. Eight slide cutting blades are fixed on a blade disc and the adjacent blades are mounted on each side of the disc respectively. When it works, the blade disc travels along with the tractor and rotates about the blade shaft under the action of the soil resistance. The side cutting blade only cuts off the stalk in a slide cutting way without crushing, thus both the rotational speed and
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2013.18.003