锻压技术

6300 kN缸梁一体式液压机结构特点及其有限元分析

英文标题：Finite element analysis on structure characteristics of cylinder-crown integrated hydraulic press 6300 kN

作者：张伟玮王小松王仲仁

单位：哈尔滨工业大学

分类号：TG315

出版年,卷(期):页码：2016,41(3):59-62

摘要：

对于液压缸为半球形的6300 kN缸梁一体式压力机，半球形液压缸兼做上横梁，是缸梁一体式压力机的主要给力与承载构件，它与传统的液压缸为圆筒形的三梁四柱式液压机相比，结构和受力状态都发生了很大改变，从而可以降低质量，增加设备的公称压力。通过数值模拟分析了满载时缸梁一体结构，以及活动横梁与下横梁的应力分布和变形挠度。结果表明，缸梁一体结构的等效应力极值为70.0 MPa，最大变形挠度为0.16 mm·m-1；活动横梁的等效应力极值为54.4 MPa，最大变形挠度为0.10 mm·m-1，下横梁的等效应力极值为141.5 MPa，最大变形挠度为0.15 mm·m-1。缸梁一体式液压机机身结构的强度和刚度均符合设计要求，满载时无论是等效应力，还是变形都在可接受范围内。

For a cylinder-beam integrated hydraulic press (CCIHP) 6300 kN, its hydraulic cylinder is a hemispherical shell and used as an upper beam. It is the key structural component that outputs the driving force to form parts. Compared the traditional three-beam and four-column hydraulic press with a cylindrical hydraulic cylinder, the structure and force distribution were significantly different from CCIHP. Therefore, the total weight could be reduced and the nominal force could be increased. The cylinder-beam integrated structure, the stress distribution and deformation deflection of movable beam and lower beam were analyzed by numerical simulation. The results show that the peak value of equivalent stresses for cylinder-beam integrated structure, moving beam and lower beam are 70.0, 54.4 and 141.5 MPa respectively，and the maximum deformation deflections are 0.16, 0.10 and 0.15 mm·m-1 respectively. Therefore, both strength and stiffness for the body structure of cylinder-beam integrated hydraulic press meet the design requirements, and the equivalent stress and deformation deflection under the full load are within acceptable range.

基金项目：

国家科技重大专项 ( 2011ZX04001-011)

张伟玮（1985-），男，博士, 助理研究员通讯作者：王小松（1977-），男，博士，副教授

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