Research And Application On Micro Friction Technology Of Hydrostatic Uploading

In our real life,friction is everywhere.In the world,energy loss due to friction reaches 1/3?1/2.In industry,about 80%of mechanical parts are also damaged by friction.Therefore,people pay more and more attention to the study of tribology and have achieved good results.For example,the generation of hydrostatic bearing and hydrostatic unloading technology greatly solves the problem that heavy machinery is difficult to operate due to excessive friction,and the static pressure technology has high precision,high bearing capacity,small friction resistance,and good seismic performance.Long service life and other characteristics.In this paper,by the research of hydrostatic bearing technology and hydrostatic unloading technology,and through theoretical innovation and structural innovation,the realization principles and methods of the new hydrostatic bearing are proposed,that is,the plane static micro friction technology which has both theoretical significance and great practical significance.This article starts with the mathematical model and the physical model.Through the theoretical calculation,the structural model of the experiment device is designed.Then the finite element analysis software Ansys is used to optimize the experiment device.Based on the optimization results and analysis of experiment data,the feasibility of the static pressure micro-friction technology is verified.Firstly,according to the basic principles and implementation methods of the hydrostatic bearing technology and the static pressure relief technology,a new method for reducing the friction force is proposed and applied to the plane motion support,which is called the planar static pressure micro-friction technology.It is described by theoretical analysis.The "electronically controlled self-adaptive static pressure oil pad" is applied to its experiment verification device.Secondly,in order to verify the feasibility of the static pressure micro-friction technology,a set of verification experiment device was designed and the structure of the experimental device was analyzed.In addition,the sensor is applied to the experimental device for the purpose of directly inspecting the change of force during the experiment.Again,the key technology of this topic is the seal,and the experiment verification device uses an O-ring to seal it.Therefore,the working mechanism,compression rate,failure reason,and failure mode of the O-ring are analyzed and researched,and the Workbench is used for finite element analysis to simulate the working environment in a real way.After the completion of the experiment device,the phenomenon of seal failure occurs.Finally,experiments are carried out using the designed experimental device,and through calculation and analysis of the data obtained during the experiment,the feasibility of the planar static pressure micro-friction technology is directly demonstrated.In this paper,a new set of theoretical calculation methods and unloading methods are designed for planar motion support to reduce the friction force.The friction coefficient can reach the level of rolling friction,but the manufacturing cost is about half of the rolling friction.This method can be used for the rotation and motion of some heavy mechanical workbenches,which can reduce the driving power and save the cost.