摘要
Abstract
Taking the scissor-type hydraulic lifting platform as the research object,the force analysis of the platform was conducted,and the relationship between the hydraulic cylinder thrust and the inclination angle of the scissor arm was derived based on the principle of virtual displacement.The hinge point forces were then calculated using the moment balance method.The accuracy of the force analysis results was further validated through dynamic simulation analysis.To reduce the maximum thrust required by the hydraulic cylinder,its installation position was optimized.As a result,the maximum thrust of the optimized hydraulic cylinder was reduced by 3.9%.The strength of the scissor arm and the anti-overturning performance of the lifting platform were evaluated using the finite element method.This study provides data support for the strength verification of the scissor arm and the selection of the hydraulic system,and offers valuable reference for further optimization of the lifting platform.关键词
液压升降平台/虚位移原理/铰点力/动力学仿真/优化设计Key words
hydraulic lifting platform/virtual displacement principle/hinge point force/dynamic simulation/optimal design分类
机械制造
