BRECOtimingbelttimingbeltapplicati***inseveralimportantissuesTheBRECOPUtimingbelttimingbeltcombinationoftheoryandpractice,thebeltdriveapplicati***,thefollowingquesti***shouldpayattentionto:ApulleylifeandProfilePrecisionbeltdrive.Toothprofileshapechange,morethanlife,withtoothandpulleytoothcannotbeproperlyengaged,itwillcausethetimingbeltfailureintheshortterm.2,thematerialofthepulley,thetoothsurfacehardnessh***eamajorimpactonthetran***issionquality.Thepulleyisthemostcommonformoffailureoftoothwearandpitting,withthetoothsurfaceshouldh***esufficientwearresistanceandcontactstrength.Studiesh***eshownthatthegeneralpulleymaterialcouldbecarbonsteelorcarbonalloystructuralsteel,forexample,45#,40Cr,35SiMnsuchasnormalizingorquenchingandtemperingtreatment,thetoothsurfacehardnessof200to260HB.Highstrengthandsurfacehardness,goodtoughness,beforetheymeetpracticalneeds,moderatehardness,itcanbefineintheheattreatmentaftercuttingtoothprofile.Timingbeltdrive,inorderto***oidthetimingbeltfromthepulleysideoftheslippageandpulleyblockplate,retainingplateshouldbe1-2mmhigherthanthebackoftheband,andabout5degreesinclination.4,whenthepulleyspeedisgreaterthanthelimitspeed,dynamicbalance,lessthanthelimitspeed,justforstaticequilibrium,afterbalanceddetection,theresidualunbalanceofthepulleyshouldnotexceedthepermissiblevalue.5,thepulleyinstallationskewed,withsidepressedontheretainingplate,resultinginwearincreasedwiththeside.Therefore,theinstallationisimportanttonotetheparalleli***ofthepulleysaxisdrivecenterplaneofeachpulleyinthesameplane.6,withtheloadorpreloadistoolargewillcausethepitch,resultinginmeshinginterferencewithtoothwear,overload,carryingcapacityisgreatlydiminished.Therefore,thetimingbeltapplicati***topreventoverload,andselecttheappropriatepreload.BRECO同步带PU同步带应用中的几个重要问题BRECO同步带PU同步带结合理论分析及实践研究，同步带传动应用中以下几个问题应引起重视：1、BRECOFLEX带轮使用寿命及齿形精度对同步带传动有重要影响。超过使用寿命，齿廓形状变化，带齿与带轮轮齿不能正确啮合，则会造成同步齿形带在短期内失效。2、带轮的材质、齿面硬度等对传动质量有重要影响。带轮***常见的失效形式是齿面磨损和点蚀，因此带轮齿面应有足够的耐磨性和接触强度。研究表明，一般带轮材料可选用中碳钢或中碳合金结构钢，例如45#，40Cr，35SiMn等，进行正火或调质处理，使齿面硬度为200至260HB。较高的强度和表面硬度，良好的韧性，方可满足工程实际需要，因硬度适中，故可在热处理以后精切齿廓。3、同步齿形带传动中，为避免同步带从带轮一侧滑脱，带轮必须有挡盘，挡盘应比带的背面高出1至2毫米，并有约为5度的倾角。4、当带轮转速大于极限转速时，必须进行动平衡，小于极限转速时，只需作静平衡，经平衡检测后，带轮的残余不平衡量应不大于允许值。5、带轮安装发生偏斜，则带侧面紧压在挡盘上，造成带侧面磨损加剧。因此，安装时必须注意带轮轴线的平行度，使各带轮的传动中心平面位于同一平面内。6、带过载或预紧力过大时将导致齿距差，从而产生啮合干涉与齿面磨损，过载时，承载能力大为下降。因此，同步齿形带应用中一定要防止过载，并选择合适的预紧力。)