100MN橄榄式缠绕液压机结构设计与特性研究

Structural design and characteristic research of 100MN olivary winding hydraulic press

减轻重量和缩小体积一直都是重型模锻液压机设计的关键问题。根据自然界的橄榄结构,设计完成一种新式100 MN橄榄式钢丝缠绕模锻液压机。提出一种新的大型液压机捆绑结构设计理念,并给出缠绕层参数的设计方法;结合有限元法对新式液压机的结构特性进行仿真分析;通过现场加载实验,完成液压机关键部位实际变形量与仿真变形量的对比分析。研究结果表明:新型橄榄式捆绑结构设计在提高液压机可靠性的同时,可有效减少其重量和体积;预应力数值计算方法可作为钢丝缠绕层参数的设计依据,同样也适用于传统缠绕技术;在工作状态下,新型橄榄式缠绕液压机结构可满足强度设计要求;在相同工作压力下,梁体伸长量的实验实测数值略大于仿真值,活塞杆伸出长度实测数值也较仿真结果偏大。

Weight reduction and volume reduction have always been the key problems in the design of heavy die forging hydraulic press.Therefore,based on the olivary structure in natural world,a new type of 100 MN olivary die forging hydraulic press with steel wire winding was designed. Then,a new design concept of binding structure for large hydraulic press was proposed,and the design method of winding layer parameters was presented. Furthermore,the structural characteristics of new hydraulic press were simulated and analyzed by FEM,and the comparison analysis on the actual and simulated deformation amounts for the key parts of hydraulic press was completed by on-line loading tests. The results show that the design of new olivary binding structure effectively reduces the weight and volume of hydraulic press while improving its reliability,and the numerical calculation method of prestress can be used as the basis for the parameters design of steel wire winding layer,which is also suitable for the traditional winding technology. In the working state,the structure of new olivary winding hydraulic press meets the strength design requirements. Meanwhile,under the same working pressure,the measured value of test for beam elongation is slightly larger than the simulation value,and the measured value of the extension length of piston rod is also larger than the simulated result.