Transactions of Materials and Heat Treatment

Title：Transient response analysis on drive roll shaft of roller press under pressure working condition

Authors： Xie Jianghuai1 Fan Qiyuan2 Tan Xiaodan3 Yang Jingjing1

Unit：（1. Department of Industrial Automation Guangdong Polytechnic College Zhaoqing 526100 China 2. College of Mechanical Engineering Guangzhou College of South China University of Technology Guangzhou 510800 China 3.Department of Automobile Engineering Xingtai Vocational and Technical College Xingtai 054035 China）

KeyWords： drive roll shaft modal superposition method free vibration equation natural frequency critical rotating speed dynamic characteristics

ClassificationCode：TG335.5

year,vol(issue):pagenumber：2019,44(2):112-118

Abstract：

For the drive roll shaft being the key part of roller press, the transient responses of the drive roll shaft under three initial pressures were analyzed by modal superposition method, and the free vibration equation of the drive roll shaft was constructed by the theory of mechanical vibration theory. Then, the physical modeling of the drive roll shafts was built by 3D software SolidWorks, and the modal vibration study of the drive roll shaft was conducted to obtain its first ten order natural frequencies and vibration models with the help of finite element software ABAQUS. The calculation results show that the critical rotating speed of the roll shaft is 13209.6 r·min-1, which is higher than the actual maximum speed of 40 r·min-1, and the roll shaft is not resonant. The vibration mode analysis shows that the first ten vibration modes of the roll shaft are the bending vibration and torsional vibration, and the deformation of the roller shaft increases with the increase of vibration order number, and the maximum deformation occurs at the gear and shaft end. Dynamic characteristics show that the changes of stress, displacement and kinetic energy of roll shaft are affected by the space between mold installation location and positioning baffle, the farther the space is，the greater the influence is, and the influence reaches the maximum when the space between mold installation location and positioning baffle is 320 mm.

Funds：

基金项目:2015年广东省教育教学研究与改革项目(2015771)

作者简介：谢江怀（1980-），男，硕士，讲师 Email：xiejianghuaipaper@126.com

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