基于有限元的薄木刨切机机架分析与设计  

Analysis and design of small-diameter timber sided sliced veneer machine's frame based on finite element method

作　　者：马岩[1] 詹东[1] 许洪刚[1] 宋明亮[1] 

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：《木工机床》2017年第1期6-10,共5页Woodworking Machinery

基　　金：国家十二五支撑项目(2014BAF11B00);黑龙江省2014年省级应用技术研究与开发计划项目(GA14A401)

摘　　要：为了缓解我国天然优质森林资源短缺的现状,提高珍贵木材的利用率,刨切机的加工效率与稳定性尤为重要。本文对刨切机进行了整体设计,采用双面刨刀纵向同时进给、工件固定的刨切方式,减少了机器的占地面积,提高了刨切的效率和精度。对刨切机机架进行了详细分析与设计,采用焊接工艺及螺栓连接以保证机架有较好的结构工艺性、足够的强度、较高的抗振性。通过有限元分析理论节点模型中的单元节点力与节点位移的关系,进而分析出整体的应力与变形量,将Solidworks中的机架三维模型导入ANSYS,并根据该机器的加工过程,进行静力学分析,应力与变形量均满足许用条件,为机架的设计提供了强有力的理论基础,进而最终确保设计满足要求。本文的设计为珍贵原木的开发利用及产业化生产提供了技术支持,可产生较好的经济效益。In order to alleviate the shortage of natural high-quality forest resources and improve the utilization rate of valuable timber, the processing efficiency and stability of slicing machine are very important. In this paper, the overall design of the planning machine, the use of double-sided planer longitudinal feed at the same time, the workpiece fixed planing way, reducing the machine footprint, improve the efficiency and accuracy of slicing. The planing machine frame is analyzed and designed in detail. The welding process and bolt connection are adopted to ensure the frame has good structure technology, sufficient strength and high vibration re-sistance. Through the finite element analysis of the relationship between the nodal force and the displacement of the node in the theo-retical node model, the whole stress and deformation are analyzed. The 3D model of the frame in Solidworks is imported into ANSYS and the static Analysis, stress and deformation are to meet the allowable conditions for the design of the rack provides a strong theo-retical basis, and ultimately to ensure that the design meets the requirements. This paper provides technical support for the develop-ment and utilization of precious logs and industrial production, which can produce better economic benefits.

关 键 词：切削力 刨切机 机架 有限元 

分 类 号：TG55[金属学及工艺—金属切削加工及机床]