Notes for synchronous belt drive installation

Wheninstallingthebelttothebeltpulley,checkwhetherthenumberofteethofthebeltandthebeltgroovematchcorrectlybeforetensioningdrive.  Synchronousbelttransmissiontension  Correctionofbelttransmissiontensionandalignmentisimportanttooptimizebeltlifeandminimizenoiselevels.Infact,theimpropertensioninthebeltdrivewillaffectthebeltfitinthebeltgroove,butthecorrecttensionwillminimizetheinterferenceofthebeltpulleyandreducethenoiseinthedrive.  Inthetransmissionof   Misalignmentofthebeltpulleywillresultinanunequaltension,edgewear,andultimatelyreducethelifeofthebelt.Inaddition,duetotheinterferencebetweenthesynchronousgearandwheelgroove,themisaligneddrivewillbemorenoisythanthecorrectone.Usearuleroralaseralignmenttooltocheckthatthepulleyisproperlyaligned.  Idlerwheel[installationdetailsofidlerwheel]  Whenthecentertoeisrounded,theidlerisusuallyameansofapplyingtensiontothetransmission.Butitcanalsoincreasethenumberofteethingearmesh.Comparedwiththebackidler,itisrecommendedtousethetoothedidlerintheinnermeasurementoftheloosesideofthesynchronousbelt.Internalflatidlersarenotrecommendedbecauseofnoiseandabnormalwearofthebelt.  *idlerwheelislocatedinthelooseedgerangeofsynchronousbeltdrive  *thediameterofthetoothedidlerusedforthetoothsurfacemustbelargerthanthatofthesmallbeltpulleyintheequaldrydrive.  Thesuiwheelmustbemountedonarigidbracket.  *theidlermustbestraightandtoothed.Thereshouldbenoarcsurfaceandthecontactradianshouldbethelowest:  Recommendeduseofidler:backsideofsmoothwheelpressuresynchronousbelt,toothedsynchronousbeltwheelpressuresynchronousbeltwithtoothsurface  *thewidthofthesuiwheelshouldbegreaterthanorequaltothewidthofthebeltwheelB  Althoughthebacksuiwheelincreasesthenumberofteethengagedonthetwobeltwheelsinthetransmission,thereversebendingforceofthesynchronousbeltmayleadtoearlyfailure.Whentheidlermustbeselected,itsdiametermustbe1.25timeslargerthanthediameterofthesmallbeltpulleyinthetransmission,anditmustbelocatedascloseaspossibletothesmallbeltpulleyinthetransmission,soastomaximizethenumberofteethinthegnashingofthesmallbeltpulley.  Loading,unloadingandstorageofsynchronousbelts[storage,transportationandmaintenanceofsynchronousbelts]  Properstorageisimportant,inordertoavoiddamagetothesynchronousbelt,itmaycauseprematurefailureofthesynchronousbeltsynchronousbeltmustnotbestoredinthefloor,unlessitisinaprotectivecontainer,inordertoavoiddamage,itcouldseriouslycausepersonalinjuryorequipmentdamagesynchronousbeltshouldbestoredinthedirectilluminate,acoolanddryenvironment,nochemicalsexistaround)toavoidthesynchronousbeltinthewindow(toavoidsunlightandhumidity),shallnotbeclosetothemotororproduceozoneequipment,nodirectairflowneartheheating/coolingsystem.  Duringloading,unloadingorstorage,thesynchronousbeltshallnotbecrimpedtoavoiddamagetothecoreofthebelt.Thesynchronousbeltshallnotbesuspendedonsmallpinstoavoidbendingtoasmalldiameter[seetheminimumbendingdiameterallowedbyGAIGIgagesynchronousbeltpulleyfordetails].Handlethebeltcarefullyduringmovementandinstallation.Duringinstallation,thesynchronousbeltshallnotbeforcedontheflangeofthepulley.

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Synchronous tape market

OnOctober18,shenglaiyun,spokesmanofthenationalbureauofstatistics(NBS)anddirectorofthegeneralstatisticsdepartmentofthenationaleconomy,introducedthenationaleconomyinthefirstthreequartersof2013.  Accordingtopreliminarycalculations,theGDPofthefirstthreequartersreached3.86762trillionyuan,anincreaseof7.7%year-on-yearintermsofcomparableprices.Inthefirstquarter,thegrowthratewas7.7%,7.5%inthesecondquarterand7.8%inthethirdquarter.Intermsofindustries,theaddedvalueoftheprimaryindustryreached3.5669trillionyuan,up3.4%year-on-year.Theaddedvalueofthesecondaryindustryreached1.7511.8trillionyuan,up7.8percent;Theaddedvalueofthetertiaryindustryreached17.5975trillionyuan,up8.4percent.Onaquarter-on-quarterbasis,GDPgrewby2.2%inthethirdquarter.Thisisthesynchronousbeltindustrytoacceleratethedevelopmentofdomesticindustries,seizethedomesticdevelopmentopportunities,andthenationalconsumptionandincomeincreaseintothecorresponding.  Factoryactivityinthemid-atlanticregionslowedslightlyinOctober,butbusinessoptimismaboutthefutureremainedata10-yearhigh,asurveyshowed.  DatashowedthePhiladelphiafed'smanufacturingindexfellto19.8inOctoberfrom22.3inSeptember,betterthanexpectedat15.0.Areadingabovezeroindicatesexpansioninregionalmanufacturing.  ThePhiladelphiafed'sindexofnewordersroseto27.5inOctoberfrom21.2,thehighestsinceMarch2011.Theemploymentindexroseto15.4from10.3,thehighestsinceMay2011.Meanwhile,thepricepaymentindexfellto21.7from25.3,thepriceacquisitionindexroseto14.2from12.7,andtheshipmentindexfellto20.4from21.2.  Thesurveyshowedrespondentsremainedoptimisticabouttheoutlook,withthebusinessconditionsindexforthenextsixmonthsrisingto60.8from58.2inOctober,thehighestlevelsinceSeptember2003

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