期刊论文

Design and Experiment of Small Subsoiler in Camellia Oleifera Forest Land

中文

农机化研究

1003-188X

2020

42

1

129-136+172

10.3969/j.issn.1003-188X.2020.01.025

湖南省重点研发计划项目（2018NK2065）； 湖南省科技计划重点研发项目（2016NK2142）； 湖南省高校科技创新团队资助项目（2014207）；

本校为第一机构

对我国南方林地土壤板结严重、透气性和蓄水能力差的问题,通过对作业对象物理力学性能的研究,设计了一款符合要求的林地小型深松机。选用东方红101型手扶式拖拉机,设计了减速箱和深松刀具,刀具可单螺栓、双螺旋布置。采用ANSYS软件对刀具进行有限元分析,结果显示:刀具最大变形量为0.701 07mm,最大应力为81.6MPa。试验结果表明:单螺旋刀具平均碎土率为66.68%;双螺旋刀具平均碎土率为75.35%。单螺旋和双螺旋深松后土壤的含水率都提高了,双螺栓刀具深松后的含水率比单螺旋深松的高,可达到预期效果。

Aiming at the problem of serious soil compaction,poor gas permeability and water storage capacity in southern China,a small-scale subsoiler that meets the requirements of forestland is designed by studying the physical and mechanical properties of the working objects.The Dongfanghong 101 walk-behind tractor is used to design the reducer and deep loose tool,and the tool double spiral arrangement;the finite element analysis of the tool based on ANSYS software showed that the maximum deformation of the tool is 0.70107 mm and the maximum stress is 81.6 MPa;Field test,determination of test indicato...