Transactions of Materials and Heat Treatment

Title：Preload characteristics analysis on combined movable beam for large-scale double-column up-pressing hydraulic press

Authors： Jia Lei1 Yang Jin1 He Qigong2 Luan Dawei3 Yang Xiaobo1

Unit：（1.School of Mechanical Engineering Lanzhou Jiao Tong University Lanzhou 730070 China 2.Lanzhou LS Energy Equipment Enigneering Research Co. Ltd. Lanzhou 730050 China 3.Lanzhou LS Heavy Industry Co. Ltd. Lanzhou 730050 China）

KeyWords： hydraulic press combined moving beam working condition analysis preload whole machine design

ClassificationCode：TG315

year,vol(issue):pagenumber：2024,49(5):171-178

Abstract：

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.

Funds：

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：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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