矩阵式返向器与扁圆形返向器的动力学分析

Dynamic Analysis of Matrix and Oblate Reversers

详细介绍了五次抛物线型回珠曲线的设计计算方法,通过Creo 3.0建立了含矩阵式返向器和含扁圆形返向器的滚珠丝杠副模型;在ADAMS中对两种滚珠丝杠副模型进行了4种工况下的动力学仿真;借助于MATLAB对比分析了两种返向器在不同的工况条件下,滚珠对其碰撞力的大小及变化规律。研究表明:相同工况下矩阵式返向器受到的碰撞力更大,但含矩阵式返向器的滚珠丝杠副的结构更加紧凑,可为含矩阵式返向器的滚珠丝杠副应用和结构改进提供参考。

The design and calculation method of the quintic parabolic curve of the recirculating balls are introduced in detail.The models of the ball screws with matrix reverser and oblate reverser are established respectively by the software Creo 3.0.The model of the ball screw is dynamically simulated by using the software ADAMS.The change of the collision force of the two kinds of returners under different operating conditions is compared analyzed with the aid of MATLAB.This paper comes to the conclusion that the structure of the ball screw with the matrix reverser is more compact and the collision force of the matrix reverser is greater under the same working condition.A reference and basis are provided for the application of the ball screw with matrix reverser.