Analysis And Experimental Study Of Multi-Factor Coupling Lateral Vibration Of Vertical Shaft Hoisting Guide System

The vertical shaft hoisting system is an important part of coal mine production system,the container's guidance system is an important component of hoisting system,guiding system design,manufacture and installation of quality is an important guarantee of safe and efficient operation of the shaft,as mine hoisting speed increased,the guidance system puts forward higher quality requirements,the purpose of the guidance system is to reduce the raise the vibration of the container,Make the lifting container run safely and smoothly.The transverse vibration of the lifting vessel is caused by the influence of various factors of the guiding system.Therefore,the study on the influence law of the multi-factors of the guiding system on the transverse vibration of the shaft lifting will help to improve the design,manufacturing and installation level of the guiding system,and improve the safety and efficient production of coal mine.This paper aims at lifting the lateral vibration of the vessel and takes the dynamics as the research method.The research is carried out from the following aspects:The dynamics of the tank passage,the roller tank lugs and the lifting vessel were analyzed,and a six-degree-of-freedom guide system-the dynamic model of the lifting vessel was established.The excitation simulation methods for three common defects of the tank passage,including bending,dislocation and local bulge,were analyzed.Through Matlab/Simulink,the lateral vibration response under different lifting speeds is analyzed.Especially for the high-speed lifting system,the influence law of the type and degree of tank passage defects,the stiffness and damping of tank ears on the lateral vibration is analyzed in detail.The experimental platform of vertical shaft lifting transverse vibration simulation is designed.The experimental platform can simulate bending excitation at different lifting speeds and study the influence of lifting speed on transverse vibration.The experimental platform can also simulate the influence of different tank passage excitation and different tank lug stiffness and damping on lateral vibration of the vessel under high speed lifting.According to the requirements of simulation,the overall design and check of the mechanical structure of the experimental platform is carried out,and the vibration signal data acquisition and analysis system is introduced.By comparing the simulation contents,the accuracy of the dynamic model of transverse vibration is proved.Taking the stiffness and damping of the roller tank lugs as the main optimization parameters,and the maximum lateral vibration acceleration of the lifting vessel as the optimization objective,a political optimization algorithm was adopted to optimize the vibration reduction design of the lifting system.The optimization results show that the maximum acceleration is reduced by 80.16%after optimization.Through the vibration simulation analysis,experimental research and vibration reduction optimization design of the paper,the influence law of each factor of the guide system on the vibration of the high-speed shaft lifting is analyzed,and the method for the vibration reduction design of the lifting vessel is provided,which can provide a theoretical basis for the design of the safe and efficient shaft lifting system.Figure[65]Table[11]Reference[81]...