小径材指接齐头定宽机床关键结构动静态分析  

Dynamic and static analysis on key structure of sawing machine tool for small diameter finger joint wood

作　　者：战丽[1] 刘一凡 张路路 杨春梅[1] ZHAN Li;LIU Yifan;ZHANG Lulu;YANG Chunmei(Forestry and Woodworking Machinery Engineering Technology Center,Northeast Forestry University,Harbin 150040,CHN)

机构地区：[1]东北林业大学林业与木工机械工程技术中心,黑龙江哈尔滨150040

出　　处：《制造技术与机床》2021年第11期21-26,共6页Manufacturing Technology & Machine Tool

基　　金：黑龙江省应用技术研究与开发计划项目(GA19A402);中央高校基本科研业务费专项资金项目(2572019CP18)。

摘　　要：为提高机床的动态稳定性和主体结构强度,设计小径材指接齐头定宽机床总体结构,并对关键结构进行仿真分析。对定宽加工组件模型进行有限元分析,其强度、刚度及变形量均在许用范围内。对中组件进行动力学仿真分析,得到8对锥齿轮副啮合切向力变化曲线和指接板对中过程中质心位置变化曲线,统计得锥齿轮副最大啮合切向力为2248 N,满足静强度条件,验证了动力学特性。通过对机床关键结构进行有限元分析和动力学仿真,有望优化机床结构。To improve the dynamic stability and main structure strength of the machine tool,the whole structure of the machine toolwas designed and the key structure was simulated and analyzed.Bycarryingout finite element analysis of the short sides processing component,the stress,strain and deformation nephograms of the model were obtained.The maximum stress,the maximum strain value and the maximum deformation met the statics requirements.By carrying out the dynamic simulation analysis of the centering assembly,the change curves of the meshing tangential force of 8 pairs of bevel gears and the position of the centroid position of the finger joint board during the centering processwere obtained.The maximum meshing tangential force of bevel gears is 2248 N,which met static strength conditions.The simulation results verifiedthat the centering assembly met the dynamic characteristics.Through the finite element analysis and dynamic simulation of the key structure of the machine tool,it is expected to optimize the structure.

关 键 词：小径材 齐头定宽 机床 有限元分析 动力学仿真 

分 类 号：TS642[轻工技术与工程]