中文摘要：

以YC70液压破碎锤为研究机型,叙述其工作原理,在各项技术指标和基本工作原理不变的前提下,对液压破碎锤零部件进行改进设计,并利用Pro/E软件建立其机械本体和控制元件的三维模型,利用ANSYS软件对液压破碎锤主要易损部件—冲击活塞、钎杆进行应力分析,以检验改进设计的合理性。通过对YC70液压破碎锤的建模和分析,改进后的模型在机械性能、经济性、轻量化等方面都取得了满意的结果,达到了改进的目的。为读者进行液压破碎锤的三维建模与设计提供参考。

英文摘要：

Based on studying the YC70 Hydraulic Impactor,the working mechanism of it is narrated and on the premise that several technical index and basic working mechanism remain unchanged,the writers improve the components of hydraulic impactor.Further,the 3D form of mechanical body and control units are modeled via Pro/E and finite element analysis（FEA）of some damageable components of hydraulic impactor,such as impact plunger and drill rod,is conducted based on ANSYS in order to inspect the rationality of improved design.By modeling and analysis of YC70 Hydraulic Impactor,some satisfactory results in the aspects of mechanical performance,economy and lightweight on the improved model are acquired,which achieves purpose.The results above provide reference for reader in 3D designing and modeling hydraulic impactor.