• CN:11-2187/TH
  • ISSN:0577-6686

›› 2010, Vol. 46 ›› Issue (15): 71-75.

• 论文 • 上一篇    下一篇

几种不同触土曲面耕作部件的力学性能仿真研究

郭志军;周德义;周志立   

  1. 河南科技大学车辆与动力工程学院;吉林大学生物与农业工程学院
  • 发布日期:2010-08-05

Simulation Research on Mechanical Performances of Several Kinds of Cultivating Components with Different Soil-engaging Surfaces

GUO Zhijun;ZHOU Deyi;ZHOU Zhili   

  1. College of Vehicle and Motive Power Engineering, Henan University of Science and Technology College of Biological and Agricultural Engineering, Jilin Universityc
  • Published:2010-08-05

摘要: 优化耕作部件触土曲面形状,降低工作阻力,提高工作效率,始终是人们关注的问题。引入纵深比的概念,采用有限元法分析直线、抛物线、摆线、圆弧、仿生曲线(包含小家鼠、田鼠、蝼蛄、公鸡等爪趾触土面轮廓线)等分别作为触土曲面准线时,各种不同触土曲面耕作部件耕作力学性能的优劣。研究结果表明,耕作部件触土曲面准线和纵深比是影响工作阻力的两个重要因素。在小纵深比(0

关键词: 触土曲面, 耕作部件, 工作阻力, 准线, 纵深比, 参数分析, 齿面磨损量, 斜齿轮传动, 粘着磨损, 准静态与动态载荷

Abstract: How to optimize the geometric shape of cultivating components to reduce the working resistance, thus enhancing working efficiency, is always paid much attention by humans beings. The mechanical properties and their discrepancies in different kinds of cultivating components with different soil-engaging surface directrix, after introducing the concept of longitudinal/depth (L/B) ratio, are analyzed and compared with finite element method. The directrix for each cultivating component’s soil-engaging surface is respectively composed of straight line, parabola, cycloid, circular arc and bionic curves including the soil-engaging surface contour line of the claw toes of house mouse, field mouse, mole cricket and cock. Results indicate that the soil-engaging surface directrix and longitudinal/depth ratio are two important factors to affect the working resistance. The curved cultivating components generally possess superior cultivating performance against the straight-line cultivating components with small L/B values (0

Key words: Cultivating component, Directrix, Longitudinal/depth ratio, Soil-engaging surfacx, Working resistance, Adhesive wear, Helical gear drive, Parameters analysis, Quasi-static and dynamic loads, Wear depth

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