摘要
针对松材线虫病对松树等树种的威胁、传统处理大径级疫木的方法存在运输困难、效率低、传播风险高以及粉碎效果差等问题,研发大径级疫木粉碎装备,实现疫木的就地粉碎。为此,设计一种粉碎装备的履带底盘机构,采用液压劈砍技术预处理疫木,并通过盘式削片机和锤式粉碎机粉碎木材。利用多体动学仿真软件进行仿真,模拟履带底盘在20°坡度、200 mm高、400 mm宽的垂直壁和200 mm深、400 mm宽的壕沟等复杂地形下的运行特性,分析运行过程中的平移加速度、垂向加速度及俯仰角等关键参数。履带底盘在20°坡度、200 mm高、400 mm宽的垂直壁和200 mm深、400 mm宽的壕沟等复杂地形下,表现出良好的稳定性和通过能力,关键参数均在合理范围内,运行过程中未出现履带脱链等异常现象。大径级疫木粉碎装备可实现定点粉碎,为疫木粉碎和履带底盘设计提供思路和技术支持。
In response to the threat posed by pine wood nematode disease to pine and other tree species,as well as the problems of transportation difficulties,low efficiency,high transmission risks,and poor crushing results inherent in traditional methods of handling large-diameter infected wood,a large-diameter infected wood crushing system was developed to enable on-site processing.Accordingly,a tracked chassis was designed for this crushing equipment;infected wood is first pretreated using hydraulic splitting technology and then crushed by a disc chipper followed by a hammer mill.Multibody dynamics simulation software was employed to simulate the operating behavior of the tracked chassis in complex terrains,including a 20°slope,a vertical wall measuring 200 mm in height and 400 mm in width,and a ditch measuring 200 mm in depth and 400 mm in width.Key parameters such as translational acceleration,vertical acceleration,and pitch angle were analyzed during operation.Under these conditions,the tracked chassis exhibited strong stability and pass ability,with all key parameters remaining within acceptable ranges and no incidents of track derailment.
作者
李德才
张滨
杨春梅
曲文
闫杰
丁禹程
谭少林
孟繁伟
LI Decai;ZHANG Bin;YANG Chunmei;QU Wen;YAN Jie;DING Yucheng;TAN Shaolin;MENG Fanwei(College of Mechanical and Electrical Engineering,Northeast Forestry University,Harbin 150040,China)
出处
《森林工程》
北大核心
2025年第2期360-368,共9页
Forest Engineering
基金
国家林草装备科技创新园研发攻关项目(2023YG06)。
关键词
林业机械
大径级疫木
粉碎装备
履带底盘
动力学仿真
Forestry equipment
large-diameter infected wood
crushing equipment
track chassis
dynamic simulation
