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大型双柱上压式液压机组合活动横梁预紧特性分析
英文标题:Preload characteristics analysis on combined movable beam for large-scale double-column up-pressing hydraulic press
作者:贾磊1 杨晋1 何琪功2 栾大为3 杨晓波1 
单位:(1.兰州交通大学 机电工程学院 甘肃 兰州 730070 2.兰州兰石能源装备工程研究院有限公司 甘肃 兰州 730050  3.兰州兰石重工有限公司 甘肃 兰州 730050) 
关键词:液压机 组合活动横梁 工况分析 预紧力 整机设计 
分类号:TG315
出版年,卷(期):页码:2024,49(5):171-178
摘要:

 针对大型双柱上压式快速锻造液压机的组合活动横梁预紧结构及特点,分析了采用整机设计方法来设计活动横梁的不足,通过偏载分析确定了先单独设计活动横梁再设计整机的方法。基于该设计方法,通过分析坯料的锻造过程,建立了以锻压正面体坯料为例的工况分析模型,对比分析了不同工况下的预紧力,确定了快速上行是组合活动横梁拉杆预紧力分析的恶劣工况。建立了恶劣工况下的拉杆预紧力模型,提出了预紧力确定思路。通过有限元分析,验证了组合活动横梁预紧力确定思路的正确性。为大型双柱上压式快速锻造液压机组合活动横梁的预紧力结构设计和理论研究提供了一种可行性的思路和方法。

 For the preload structure and characteristics of combined movable beam for large-scale double-column up-pressing fast forging hydraulic press, the disadvantage of the method for designing the movable beam by the whole machine design was analyzed, and through the unbalanced loading analysis, the feasibility of designing the movable beam separately and then designing the whole machine was determined. Then, based on the above design method, taking the forging cube billet as an example, a model of working condition analysis was established by analyzing the forging process of billet, and through compared and analyzed the preloads under different working conditions, it was determined that the fast upward was the worst working condition for the preload analysis of combined movable beam pull rod. Furthermore, the preload model of pull rod under the worst working condition was established, and the idea of determining the preload was proposed. Through the finite element analysis, the correctness of determining idea for the preload of combined movable beam was verified, which provided a feasible idea and method for the preload structure design and theoretical research of the combined movable beam in the large-scale double-column up-pressure fast forging hydraulic press.

 
基金项目:
基金项目:甘肃省科技专员专项(22CX8GA063);高性能复杂制造国家重点实验室资助项目(Kfkt2002-02)
作者简介:
作者简介:贾磊(1996-),男,硕士研究生 E-mail:1733295233@qq.com 通信作者:杨晋(1962-),男,学士,教授 E-mail:yangjin@mail.lzjtu.cn
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