剪刀叉顶升机构的铰接力分析

Analysis of Hinge Force of Scissors Jacking Mechanism

本文根据虚功原理对剪刀叉顶升机构的液压缸推力进行了理论推导,并利用有限元分析软件进行了刚体动力学仿真验证,确认理论计算公式的正确性。同时通过仿真,得到剪刀叉结构各运动副处铰接力的特点及其变化规律。据此为剪刀叉顶升机构设计提供重要的参考。

In this paper,the theoretical derivation of the hydraulic cylinder thrust of the scissors jacking mechanism is carried out according to the principle of virtual work.And the rigid body dynamics simulation verification is carried out by using finite element analysis software to conform the correctness of the theoretical calculation formula.at the same time,through simulation,the characteristics and changing laws of the hinge force at each moving vice of the scissor structure are obtained.This provides an important reference for the design of scissors jacking mechanism.