移动式枝桠材锯末机切削原理及力学分析

Cutting Principle and Mechanical Analysis of a Movable and Miniature Pine Branch Pulverizer

移动式枝桠材锯末机主要针对林间采伐以及城市园林修剪过程中遗留的树枝树叶等小径级枝桠材进行粉碎切削。通过对移动式枝桠材锯末机的切削原理进行分析,计算出主轴锯片的切削力Fu≈260N,可以实现对小径级枝桠材的粉碎切削。同时找出底刀与锯片间的间隙、切削遇角θ等影响物料切削质量的主要影响因素,为整机设计提供理论依据。

The movable and miniature pine branch pulverizer is mainly used for crushing small diameter grade brushwoods,such as branches and leaves which are left behind forest harvesting and urban gardens pruning processing.Based on the principle of cutting of movable and miniature pine branch pulverizer,we analyzed and calculated the spindle blade cutting force.The cutting force was 260 N.Main factors affecting the quality of the material cutting were determined,including the gap between the end of the knife and saw blade,cutting cornerθ.These factors would provide a theoretical basis for the whole design.