A method to Improve the Stability of Scissor Lifting Platform by using Finite Element Analysis

Abstract

Scissor lifting mechanism is widely used in various industries due to its excellent features such as simple structure and easy manufacturing. Through many observations and studies, it is found that half of the worktable (the top plate) is normally not supported and cannot withstand heavy loads when the scissor lifting mechanism is in the highest position. It is raised as an important problem in other facilities using this machine. Therefore, in this paper, one method was proposed to improve the stability of the scissor lifting mechanism. First, by analyzing the position at which the deformation is maximized, a hydraulic cylinder was mounted there to increase the stability of the scissor lift. A hydraulic cylinder was designed based on these physical quantities, the analysis of the position and stress. Next, to analyze the effect of the hydraulic cylinder support on the worktable deformation, ABAQUS program was used to analyze and compare the deformation between the worktable with and without cylinder. As the result of the analysis, after mounting the hydraulic cylinder, the deformation of the worktable decreased by 94.4% and the stability of the scissor lifting mechanism was further improved.