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introduction： Contact fatigue failure refers to the bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]The working surface is subjected to alternating stress and produces failure。Contact fatigue spalling occurs inINABearing working surface，Often accompanied by fatigue cracks，First from the contact surface below the maximum
2015-05-17 Reading quantity 1597
introduction： Experience of surface design one、 1、curveandtanget chainThe difference of。Like making two consecutive surfaces with four sides，camberAquotedcurve1，Is creating a surfaceBwhen，Best quoteAthetangent chainNot its originalcurve。Because despite the principleAThe edge of(tangent chain)namelycurve1，But after generating the surface，Its edges have been and originalcurveThere is a deviation in precision。So to ensure the continuity of the surface，Should try to choosetangent
2015-05-16 Reading quantity 2822
introduction： Contact fatigue failure isKOYObearing[KOYObearing:kOYOBearings are generally required to bear large loads，Often without a cage，Instead, fill the inner and outer raceways with rolling elements。And most small and medium-sizedKOYORolling bearings are equipped with retainers。 inKOYOBearing in the processing process，The outer ring of the bearing、Inner ring、How do the roller and cage fit together。]The main form of normal destruction。When the rolling bearing is running，The rolling element is in the bearing、Roll between raceways of the outer ring，The contact part is subjected to periodic alternating loads，Many for every
2015-05-16 Reading quantity 1481
introduction： 【Main use】 GWBSeries non-porous coating machine is Chinese and Western medicine tablets、A new multifunctional coating equipment for grain coating and thin desert coating。 【Working principle】 Set by main engine、Dosing spray supply、Clean hot air、Dust removal and exhaust air and electrical operation system and components。The coated litmus rotates in the coated roller，Under the action of stirring baffle, it makes complex trajectory movement；Pressurized by spray feeding system，The coating medium is automatically sprayed on the surface of the core by spray gun or dropper；meanwhile，Under the state of negative pressure inside the cylinder，The duck-bill blade embedded in the core diffuses hot air throughout the core and rolls
2015-05-16 Reading quantity 2814
introduction：Intersecting line line of intersection Developed view developing drawing Line of section line of section Spline drawing conventional representation of splines Computer graphics computer graphic Profile map section Cutaway view section view view view Axonometric drawing axonometric dr
2015-05-16 Reading quantity 2921
introduction：The development of machine tool manufacturing industry，Determines the development of the hardware industry，It is inseparable from many macro and micro factors。It cannot be separated from numerical control，The development of rail and other industries，meanwhile，Together with these hardware industries，So it also drives more rails，Numerical control，Such as the development of hardware industry！
2015-05-16 Reading quantity 20482
introduction：Rolling bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]The phenomenon that the size or shape of a member changes due to force is called deformation。The mechanical equipment in the production site is in bad condition due to the working condition，Often overloaded operation，Deformation of some bearings is very common。Their deformation will accelerate the wear of other related parts，Even fracture，There is still a possibility
2015-05-16 Reading quantity 1523
introduction： Specialized grinding machines for grinding ingot and billet surfaces。The purpose of grinding is to remove surface defects such as decarburized layers of ingot and billet﹑Scale oxide﹑Folding and cracking, etc﹐To avoid further rolling or forging defects expansion and waste of material。The billet grinding used to be mainly a suspended grinder﹐Manual operation。1950A billet grinder appeared later in the year﹐But its growing fast.﹐to70age﹐The billet grinder has the following features﹕High grinding wheel speed(da80～90meter/points)﹐Grinding pressure is high(Usually thousands of newtons﹐Maximum accessibility3.5×10
2015-05-16 Reading quantity 2844
introduction：1、Deep groove ball bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]Such as under a simple axial load，The axial load should generally not exceed 0,5 C0The value of。 2、MinorKOYObearing[KOYObearing:kOYOBearings are generally required to bear large loads，Often without a cage，But inside and out
2015-05-16 Reading quantity 1531
introduction：one、Conscientiously implement《General operating rules for forging equipment》Relevant provisions。 two、Conscientiously implement the following relevant provisions： （one） Work hard before you start： 1、Check that the cutting tool and punching die should be in good condition without cracking，fastness。 2、Check that the clearance between the punch and the die wall should be uniform，The lowest position of the punch should be slightly above the die hole plane。 （two） Conscientious at work： 1、Equipment with multiple uses，Punching and cutting steel plates、Round steel、Square steel、Section steel（Angle steel、Steel channel、┴Section steel、I-beams and so on）One of these can be carried out simultaneously。But did not avoid overload，Counter steel
2015-05-16 Reading quantity 2966
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