>> P.321
Ⅱ297LinearMotorTableLTLinearMotorTableLTconsistsofmovingfieldcoilandstatorhavingamagnetarrangedfacingtheinsideofyoke.Magneticfluxverticallyexertedbymagnetandrotationalfluxgeneratedaroundthecoilbyelectriccurrentcausesthecoiltobeforcedhorizontally.(Fleming'sleft-handrule)Byswitchingthecoilcurrenttocertaindirectioncorrespondingtothefluxdirection,continuousthrustforceinacertaindirectioncanbeobtainedandlinearmotionsoftherotatorismaintained.IntheHighThrustSeries,asthecoilsaredenselyarrangedinverticalmagneticfluxgeneratedbyapairofcoilyokesarrangedoneabovetheother,itcanproduceextremelyhighthrustforcealthoughitissmall.SectionalStructureofLinearMotorTableLTOperatingprincipleofLinearMotorTableLTOpticallinearencoderscaleheadCoilboardMovingcoilOpticallinearencoderscaleOriginmarkC-LubeLinearWayMovingtableBedMagnetyokeStatormagnetC-LubeLinearWayCoilmoduleAircoolingpipeMovingtableOpticallinearencoderscaleheadBedOpticallinearencoderscaleOriginmarkStatormagnetMagnetyokeNNNSSNNSSSNSNSNSNSNSSNSNSNSSNNSNSNSSNNNSNSFluxMagnet(stator)Magnetyoke(stator)Coil(movingcoil)Magnetyoke(stator)Magnet(stator)Coil(movingcoil)Coilyoke(movingcoilyoke)VerticalmagneticfluxLT…CEandLT…LDStructureofLT…HStructuresofLT…CEandLT…LDLT…HTabletravelingdirectionTabletravelingdirection
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