Transactions of Materials and Heat Treatment

Title：Analysis on the influence of spherical hinges self-locked condition on hydraulic cylinder

Authors： Li Ruining1 Liu Yanyan1 He Qigong2

Unit： 1.Lanzhou Jiaotong University 2.Lanzhou LS Energy Quipment Engineering Research Co. Ltd.

KeyWords： high-speed forging hydraulic press working cylinder rotating self-locked condition finite element

ClassificationCode：

year,vol(issue):pagenumber：2015,40(7):73-76

Abstract：

For the theoretical analysis of spherical hinges rotating self-locked condition which connected plunge of working cylinder with movable beam in the pushing high-speed hydraulic press, the study was verified by the software ADAMS and the accuracy of spherical hinges self-locked condition of working cylinder was determined. Based on the spherical hinges rotating self-locked condition, an analysis model of working cylinder was put forward according to the force, and the static analysis on working cylinder under different forging eccentricities was carried out by the finite software ANSYS. The results show that the spherical hinge structure of working cylinder in press is self-locked in a certain range of forging eccentricity, and the maximum stresses on both the cylinder block and the guide sleeve increase gradually with the increase of eccentricity. After analyzing the influence of spherical hinges self-locked condition on hydraulic cylinder under eccentric load conditions, it is proposed that the spherical hinges rotating self-locked condition should take into consideration when studying the eccentric forging of high-speed hydraulic press.

Funds：

国家自然科学基金资助项目（51265022）；甘肃省科技计划资助项目（145RJZA187）

李瑞宁（1991-），女，硕士研究生

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