不同转速下低速重载齿轮动态磨损特性研究  

Research on dynamic wear characteristics of low-speed and heavy-duty gears at different speeds

作　　者：卢玲[1] LU Ling(Jilin Technology College of Electronic Information,Jilin 132021,China)

机构地区：[1]吉林电子信息职业技术学院,吉林吉林132021

出　　处：《重型机械》2020年第6期53-58,共6页Heavy Machinery

摘　　要：由于低速重载齿轮的齿面磨损计算通常都是基于准静态条件下进行的,无法充分考虑不同转速下动态啮合力,针对该问题提出动态啮合力条件下的齿轮粘着磨损计算方法。齿轮单-双齿交替时会产生齿面冲击,导致齿面啮合力变化,为准确求解齿轮齿面动态啮合力,建立了齿轮啮合动力学模型,利用最小势能原理求解齿轮动态啮合刚度,进而得到齿轮动态啮合力。结合Archard磨损理论,计算得到了不同转速下齿轮齿面动态磨损分布,通过对比可以看出,齿轮齿面啮合力是齿面磨损的主要原因,转速提高会有效减小齿面冲击,抑制磨损的发展。Because the calculation of tooth surface wear for low-speed and heavy-duty gears is usually based on quasi-static conditions,it is impossible to fully consider the dynamic meshing force at different speeds.To solve this problem,a method for calculating the gear adhesion wear under dynamic meshing force conditions is proposed.When the gear single-tooth alternates,it will produce tooth surface impact,which will cause the tooth surface meshing force to change.In order to accurately solve the gear tooth surface dynamic meshing force,a gear meshing dynamic model is established,and the minimum potential energy principle is used to solve the gear dynamic meshing stiffness.Dynamic gear meshing force is obtained.Combined with the Archard wear theory,the dynamic wear distribution of the gear tooth surface at different speeds is calculated.Through comparison,it can be seen that the main reason for the tooth surface wear is the meshing force of the gear tooth surface.The increase in speed will effectively reduce the impact of the tooth surface and inhibit wear development.

关 键 词：啮合动力学模型 粘着磨损 最小势能原理 动态啮合力 

分 类 号：TG156[金属学及工艺—热处理]