一种啮合型秸秆粉碎齿辊齿廓设计

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中图分类号： 文献标志码：A doi：10.3969/j.issn.1006-0316.2025.12.003

文章编号：1006-0316（2025）12-0017-07

Research on the Tooth Profile Design of a Meshing Type Straw Crushing Roller

CAO Wei1，YU Jianxun²，WEN Yihang1，LYU Xiang1，HUANG Kaiduan1 （1.School of Mechanical Engineering，Shaanxi University of Technology， Hanzhong 723ooo，China;

2. Shaanxi Hanjiang Machine Tool Co.， Ltd.， Hanzhong 7230oo， China ）

Abstract ： To solve the problems ofuneven particle size，high energy consumption，and disorderly shearing in current straw crushers，a meshing type crushing toothed rollr is designed.The design theory and establishment process of the meshing type straw crushing tooth profile are elaborated，and a meshing type tooth profile based on involute is designed and applied in the crushing field.Considering theuse of crushed straw as feed for ruminant livestock，the meshing tooth profile parameters are determined，the influence of pressre angle， modulus，and number of teeth on the relative sliding rate of the selected meshing point position is analyzed， leading to the calculation of the basic parameter set：19 teeth，a 3mm modulus，and a 20∘ pressure angle. Compared with the initial parameter set， the relative sliding rate is increased by 2.02% ，and the reduction of modulus results in a corrsponding decrease in the volume and weight of the gear grinding roler，thereby saving the manufacturing costs.A three-dimensional model of the gear grinding rollr based on the obtained parameters is established and the transient dynamic analysis on the gear grinding roller at a speed of 500r/min is conducted. The result shows that the parts with the maximum deformation and stress are located at the meshing point， with a maximum stress of 108.19MPa ，which is less than the allowable stress and meets the requirements foruse. Key words ∵ strawcrushing;tooth profile design;relative sliding;transient dynamics

玉米是我国播种面积最大的粮食作物。（剩余5742字）