PC Chain Brochure English - Tsubaki Europe

PC Chain Brochure English - Tsubaki Europe PC Chain Brochure English - Tsubaki Europe

13.07.2015 Views

PC ChainSelection procedureChain selection for Drive application1. Determining the sizeSelect a chain size that satisfies the following equation.Calculate design chain tension Fd(kN)Maximum WorkingFd = xLoad on the chainServicefactor, KsxSpeedfactor, KvxSprocketteethfactor, KcFd < =Maximum AllowableLoad of the chainService factor: Ks (Table 1-1)Type of impactMachine exampleElectric motoror turbineInternal combustion engineWith hydraulicdriveWithout hydraulicdriveSmoothBelt conveyorChain conveyorCentrifugal blowersOrdinary textile machines1.0 1.0 1.2Speed factor: Kv (Table 1-2) Sprocket teeth factor: Kc (Table 1-3)Chain speed7Factor0 ~ 15 m/min 1.015 ~ 30 m/min 1.230 ~ 50 m/min 1.450 ~ 70 m/min 1.6Chain selection for Conveyor application1. Confirming the conveying conditionsType of conveyor (i.e. Slat conveyor, Bucket conveyor etc.)Conveying Angle (i.e. Horizontal, Inclined, Perpendicular)Type, dimensions and mass of conveyed materials/objectsConveyor SpeedConveyor lengthAtmosphere in which conveyor is operated (i.e. temperature, corrosive factors etc.)(Presence or absence of lubrication)2. Tentative selection of a chain sizeF (kN) = w x f1 x Kv x g1000w: Mass of conveyed objects (excluding chain) kgf1: Coefficient of sliding friction (Table 3 -1)Kv: Speed factor (Table 1-2)* If 2 parallel strands are used, chain type and size should be determined using F/2 suchthat chain tension is less than the maximum allowed.3. Confirmation of the maximum base chain allowable roller loadMaximum base chain allowable roller load (Table 2-1)Number of teeth sprocketFactor9 ~ 14 1.1615 ~ 23 1.1224 ~ 37 1.0838 ~ 59 1.04> 60 1.00Unit: NChain size BS/DIN Maximum allowable load Chain size ANSI Maximum allowable loadRF25-PC 5RF06B-PC 20 RF35-PC 15RF08B-PC 35 RF40-PC 20RF10B-PC 40 RF50-PC 40RF12B-PC 60 RF60-PC 60

PC ChainSymbol keyF= Maximum static tensionapplied to chain (kN)4. Calculation of the maximum tension applied on the chainHorizontal ConveyingF = (w + 2.1m · C) f1P =F · v·1.1·160 ηg1000L (=C)L (=C) L L (=C)v= Conveying speed (m/min)Vertical ConveyingH= Vertical distance betweensprockets (m)L= Horizontal distance betweensprockets (m)gF = (w + m · C)1000w · vgP = · 1.1 · ·6010001ηH (=C)H (=C) H H (=C)C= Straight distance betweensprockets (m)Inclined Conveyingm= mass of moving parts(kg/m)w= Total mass of objectstransported on conveyor(Maximum) (kg)When conveying:L · f1 + HF = {(w + m · C)+ 1.1m(L · f1 - H)}CP =vg 1· 1.1{F - m(H - L · f1) }601000 ηHorizontal + Inclined Conveyingg1000CCCLLLCLHHHHCw= loading intervalxmass of conveyed material(kg/unit)η= Transmission ratio ofdriving partsf1= Coefficient of sliding frictionbetween chain and guide rail(Table 3-1)P= Necessary power (kW)g= Standard acceleration fromgravity = 9.8 m/s 2wwF ={( +2.1m) C1 · f1 + ( + m)(L1 · f1 + H)C1+C2C1+C2g+ 1.1m(L1 · f1 - H)}1000vg 1P = · 1.1{F - m(H - L1 · f1)} }601000 ηCoefficient of Sliding Friction: f1 (Table 3-1)PC Chain0.25C1C1 C1C1C2C2CL1L1 L15. Determination of actual chain speedMultiply the maximum tension (F) applied to the chain by the appropriate chain speedfactor (Kv) from Table 1-2. Next select a suitable chain using this formula:F x Kv < Maximum allowable load of the chain=C2L1HHHHKs= Service factor (Table 1-1)(If however, 2 parallel strands of chain are to be used, maximum chain tension = F/2)Kv= Speed factor (Table 1-2)Kc= Sprocket teeth factor(Table 1-3)Once chain tension Td and T have been established please refer to page 3 (for Driveapplication), page 4 (for BS/DIN Conveyor application) and page 5 (for ANSI Conveyorapplication) and select the appropriate chain size from the maximum allowable load column.Note: Available chain speed up to 70 m/min - Applicable temperature -20ºC ~ +80ºC.Assembly and Disassembly1. For disassembly, position the jig under a pinlink plate, as shown in the diagram, and pressdown on the pin heads. Please take care not tostrike the engineering plastic portion of thechain which may result in fracture.2. Please consult Tsubaki concerning the specialpoly steel chain disassembly jig.3. Please use a connectinglink when assembling.PressdownPressdownJIG8

<strong>PC</strong> <strong>Chain</strong>Symbol keyF= Maximum static tensionapplied to chain (kN)4. Calculation of the maximum tension applied on the chainHorizontal ConveyingF = (w + 2.1m · C) f1P =F · v·1.1·160 ηg1000L (=C)L (=C) L L (=C)v= Conveying speed (m/min)Vertical ConveyingH= Vertical distance betweensprockets (m)L= Horizontal distance betweensprockets (m)gF = (w + m · C)1000w · vgP = · 1.1 · ·6010001ηH (=C)H (=C) H H (=C)C= Straight distance betweensprockets (m)Inclined Conveyingm= mass of moving parts(kg/m)w= Total mass of objectstransported on conveyor(Maximum) (kg)When conveying:L · f1 + HF = {(w + m · C)+ 1.1m(L · f1 - H)}CP =vg 1· 1.1{F - m(H - L · f1) }601000 ηHorizontal + Inclined Conveyingg1000CCCLLLCLHHHHCw= loading intervalxmass of conveyed material(kg/unit)η= Transmission ratio ofdriving partsf1= Coefficient of sliding frictionbetween chain and guide rail(Table 3-1)P= Necessary power (kW)g= Standard acceleration fromgravity = 9.8 m/s 2wwF ={( +2.1m) C1 · f1 + ( + m)(L1 · f1 + H)C1+C2C1+C2g+ 1.1m(L1 · f1 - H)}1000vg 1P = · 1.1{F - m(H - L1 · f1)} }601000 ηCoefficient of Sliding Friction: f1 (Table 3-1)<strong>PC</strong> <strong>Chain</strong>0.25C1C1 C1C1C2C2CL1L1 L15. Determination of actual chain speedMultiply the maximum tension (F) applied to the chain by the appropriate chain speedfactor (Kv) from Table 1-2. Next select a suitable chain using this formula:F x Kv < Maximum allowable load of the chain=C2L1HHHHKs= Service factor (Table 1-1)(If however, 2 parallel strands of chain are to be used, maximum chain tension = F/2)Kv= Speed factor (Table 1-2)Kc= Sprocket teeth factor(Table 1-3)Once chain tension Td and T have been established please refer to page 3 (for Driveapplication), page 4 (for BS/DIN Conveyor application) and page 5 (for ANSI Conveyorapplication) and select the appropriate chain size from the maximum allowable load column.Note: Available chain speed up to 70 m/min - Applicable temperature -20ºC ~ +80ºC.Assembly and Disassembly1. For disassembly, position the jig under a pinlink plate, as shown in the diagram, and pressdown on the pin heads. Please take care not tostrike the engineering plastic portion of thechain which may result in fracture.2. Please consult <strong>Tsubaki</strong> concerning the specialpoly steel chain disassembly jig.3. Please use a connectinglink when assembling.PressdownPressdownJIG8

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!