用于抽油机的新型两级三环减速器的振动分析  

Vibration Analysis on New Type Two-stage Three-ring Gear Reducer on Pumping Units

作　　者：辛绍杰[1] 李华敏[2] 李瑰贤[2] 张树江 

机构地区：[1]大庆职工大学机电系 [2]哈尔滨工业大学机械工程与自动化系

出　　处：《中国机械工程》2001年第z1期182-184,共4页China Mechanical Engineering

基　　金：国家自然科学基金资助项目 ( 5 95 75 0 0 7)

摘　　要：为解决一般三环减速器振动大、温升高和转臂轴承使用寿命短等生产中迫切需要解决的问题 ,依据功率分流、弹性环均载、同步带缓冲及吸振和机构平衡原理 ,设计出了一种具有圆弧齿同步带传动的完全平衡、均载减振 ,偏心相位差为 1 80°的新型三环减速器。该两级三环减速器的传动效率达 93%以上 ,载荷分配不均匀系数小于 1 .1 ,振动加速度值也小于同等传动能力的一般三环减速器。依据振动理论建立了具有弹性支撑的输出轴的动力学分析模型 ,根据周期函数的傅里叶级数展开原理 ,将复杂的激振力分解成为多个频率成整倍数关系的简谐激励函数 ,导出了动态响应表达式 ,结果表明 ,当载荷分配不均匀系数为 1 .0时的输出轴两端支撑同步。该新型减速器可用作抽油机的传动装置。In order to solve need badly three-ring type gear reducer(problems of high vibration, high temperature and short spin arm bearing life in operation, by means of power separation flow, elastic ring equilibrating load, tardy down and assimilation vibration of synchronous belt transmission, and mechanism balance principle, the author designs a new type three-ring type gear reducer with arc tooth synchronous belt transmission, the gear reducer is fully balancing, equilibrating load and reducing vibration and phase difference 180(of mass eccentricity . The maximum transmission efficiency of two-stage three-ring gear reducer is 93%, and the load distribution non-uniform coefficient is less than 1.1,and its vibration acceleration is less than acceleration of ordinary three-ring gear reducer that has the same properties. Based on vibration principle, the paper establishes dynamics analysis model of output shaft with elastic support, according to Fourer series spread principle of periodic function, the dynamic response formula is derived by separating complex vibration force into sum of many simple harmonic excitation function of whole number times frequency relations .The result shows that response of both sides support is synchronous when load distribution non-uniform coefficient is 1. The new type three-ring reducer can be used as drive mechanism of pumping units.

关 键 词：三环减速器 游梁式抽油机 弹性均载环 振动分析 

分 类 号：TH132.46[机械工程—机械制造及自动化]