The Three Oil Wedge Floating Sets Of Sliding Bearing System Design

The thesis expound the structures and elements of dynamic-pressure sliding bearing, introduce investigation status in quo of floating-ring sliding bearing. By the contrast analysis, make out that the tri-oil wedge floating-ring sliding bearing is provided with more movement stability and length of life, and it has more application foreground.The thesis come from the analysis of stationary type tri-oil wedge dynamic-pressure sliding bearing dynamic working condition, analyse its elements and stress in variable-load operating mode. afterward, come from the analysis of no-oil wedge dynamic-pressure sliding bearing dynamic working condition, analyse its stress in variable-load operating mode, and, by the Renault-equation induction, get the derivation of its distribution shape of stress. Base on "both the kinetic pressure effect and the squeeze effect usually are the couple of major factor of being hydro-lubricant film"[1],as the theoretical gist, make the consequence, calculation and introduce the appropriation means of numerical calculation for fluid kinetic pressure effect and the squeeze effect. Base on the analysis of the two modes, take the pertinence analysis of tri-oil wedge floating-ring sliding bearing lubrication mechanism which be in dynamical load, on the precondition of "infinitude-shortness bearing" and its operate-environment, fetch the expression of excentricity and loadbearing ability. And that, bonding the axiom of confriction capacity factor minimum, do the numerical calculation of the tri-oil wedge floating-ring sliding bearing by using the MATLAB software, and warrant of calculation issuer get the conclusion.Because of the frictional wear is the first cause of resolution to length of bearing life, the thesis make the pertinence analysis the mechanism of sliding bearing frictional wear. Coming from the mode of frictional wear, make more detailed commendation of the four abrasive mode. Give emphasis to workpiece case hardness, degree of roughness and the infection of what the greasing agent act on frictional wear. By the argument analysis, Give emphasis to the factor which...