Design Of Jacking And Attitude Adjustment Mechanism For Reverse Assembly Of Large Equipment

Advanced national defense and military technology and equipment provide a basic guarantee for the growing prosperity and rapid development of our country.The national defense industry has an increasing demand for highly complex and sophisticated large-scale equipment,and is developing rapidly in the direction of intelligence and diversification.Restricted by many harsh conditions such as large size,heavy weight,short space,and high installation accuracy of the target equipment,the installation and maintenance of large-scale cavern equipment is very difficult.This paper proposes and designs a new type of special reconfigurable jacking and attitude adjustment equipment that can realize reverse assembly,overall lifting and docking installation.On this basis,a systematic basic theoretical research is carried out on the key mechanism of the attitude adjustment equipment.Provide theoretical support and reference for the design of special military equipment in my country.In order to solve the assembly problem in the closed environment of the cavern,two innovative schemes were proposed: a rigid modular reconfigurable reverse assembly jacking and attitude adjustment mechanism and a flexible cable parallel drive reverse assembly mechanism.The configuration synthesis and modular structure design of the reconfigurable assembly jacking and attitude adjustment mechanism are completed;the theoretical analysis and the overall layout and structural system design of the flexible cable parallel drive reverse assembly mechanism are carried out.According to the characteristics of the designed assembly auxiliary equipment,a set of new assembly process suitable for the cavern environment is formulated.Completed the kinematic analysis of the reconfigurable reverse assembly jacking and attitude adjustment mechanism,and deduced the inverse solution;calculated and analyzed the system degrees of freedom,and used MATLAB to calculate the workspace;based on the influence coefficient method,deduced the first-order Influence coefficient Jacobian matrix and second order influence coefficient Hessian matrix.Finally,the finite element strength calculation and mechanism modal analysis of the key components of the reconfigurable reverse assembly jacking and attitude adjustment mechanism were completed;the topology optimization method was used to design the overall framework of the mechanism lightweight,and 27 sets of simulated experimental data were used to find the optimal size,Remodeled and safety checked.