基于接触的轨道运输车升降系统传动结构稳定性分析

doi:10.16180/j.cnki.issn1007-7820.2021.02.008

Abstract

Abstract:

Rail transport conveyor is a kind of rail transport equipment, which is widely used in railway, metallurgy, mining and other fields. However, the stability of its transmission structure is an urgent problem to be solved in production. In this study, the transmission structure of the lifting subsystem of rail transport conveyor has been taken as the research object. Based on the multi-body dynamics theory and Hertz contact theory, the meshing process of the worm gear and worm in the lifting transmission structure of rail transport conveyor are studied. Additionally, the influence of stiffness coefficient, motor driving speed and transmission distance on the stability of transmission are analyzed. Then, the variation law of contact force between the worm gear and the worm is explored, so as to find out the reasons of affecting the stability of lifting structure. Through the research on the change law of the contact force of the worm gear and worm transmission mechanism in the transmission structure, it is found that the instantaneous impact of contact and the periodic fluctuation of contact force are the main reasons for the instability of the transmission structure of the lifting subsystem. The research work in this paper provids a theoretical basis for both the study of the dynamic characteristics of the worm gear and worm transmission and the design of the new transmission structure of rail transport conveyor.

Key words: rail transport conveyor, lifting system, worm gear and worm driving, stability analysis, Hertz contact theory, contact force

CLC Number:

TP242.3

PU Jianghua,WANG Xuejun,WU Peng,CHEN Mingfang,YANG Xiong. Stability Analysis of Transmission Structure of Rail Transport Conveyor Lifting Subsystem Based on Contact[J].Electronic Science and Technology, 2021, 34(2): 45-51.

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Stability Analysis of Transmission Structure of Rail Transport Conveyor Lifting Subsystem Based on Contact

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