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Single Strand Top Roller Chain Conveyor and Motor Calculation
Input Information
Conveyor & Product Input Constant & Factor Input
Weight of each conveyed product Wp = kg/pc Chain speed coefficient K =
Length of 1 product contact with chain Lp = m Coeficient of friction between chain and :
Qty of product: ~ rail when transfering f1 =
~ Full accumulation = pcs ~ conveyed object when accumulating f2 =
~ Transferring during full accumulation = pcs Motor Safety Factor Fsm =
Conveyor length (sprocket C-C) L = m Mechanical Efficiency η =
Motor load location factor Lf =
Tentative Chain & Motor Selection Operation hour/day n1 = hrs/day
Tentative selection of chain (model) = RF No. of start-stop (times/hour) n2 = times/hr
(top roller type) = Degree of impact fs =
(mfg) =
Chain pitch Dp = mm Speed Information Input
Top roller spacing = Driving' sprocket pitch diameter Dp = mm
Chain weight per meter M = kg/m Drive chain (model) =
Max allowable chain tension Ft = kgf Drive sprocket teeth (PCD) S1 = 24 ( mm)
Max allowable load for chain roller Driven sprocket teeth (PCD) S2 = 20 ( mm)
~ Conveying roller (top roller) F1allow = kgf/roller Gearmotor ratio R =
~ Base roller F2allow = kgf/roller Motor RPM Z = rpm
Selected motor kW size P' = kW
Output Information
Conveying speed v = m/min
Required motor power P = kW
Product load acting on each roller WR = kgf/roller UNSAFE (WR < Max allowable load per roller)
Translation load T = kgf SAFE (T < Max allowable chain tension)
Selection Check
Selected motor model = - - 87 - B (Brake include/exclude refer to Quotation Spec)
Calculated Catalogue
Moment of Inertia (GD2) of motor G = - kgfm2
Gli = - kgfm2
Ratio of Moment of Inertia (ratio GD2)** = ≤ SAFE
Gearmotor frame size service factor SF = ≤ SAFE
Gearmotor allowable radial load Pr = ≤ kgf SAFE
Note / Sketches
Input Pg ____ / ____ Output Pg ____ / ____ Reference Pg ____ / ____ Calc. Pg ____ / ____ Tsubaki RS80 2060TR Type 1 160 87 30 243.6 162.4 1450 1200 Steel Roller 6175
This sheet is an estimation calculation of load and chain tension on the conveyor. Calculation also provided the required motor power (Sumitomo cyclo drive). Calculations are based on single strands drive chain and free roller on other side.
1.50 1
Total system moment of Inertia (GD2) as seen from the motor shaft
0.0000 2.20 45.72 0.02 3.81 CHHM3 15 0.0149 1.45 12.13 2890 3 0.00 1.52 0.12 0.09 0.85 1 194.6 0 38.1 4.36 ~500 2 1.2 0 640 1 ~10 2 x Dp Type 2 Dp Type 1
Revision No: Revision Date: Doc. No:
Q-Code : Prepare By/Dept : /
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Calculation Load Calculation
Conveyor length L = m
Weight of conveyed product WP = kg/pc
Length of each product in contact with chain LP = m
Conveying product load per meter WP/m = kgf/m
Qty of conveyed product during full accumulation NP2 = pcs Total length of products in accumulation portion LP2 = NP2 x Lp
= m
Weight of conveyed object at accumulation portion WP2 = NP2 x Wp
= kg
Qty of conveyed product transfering NP1 = pcs
Total length of product transfering portion LP1 = L - Lp2 m Weight of conveyed object at transfering portion WP1 = NP1 x Wp
kg Chain Tension & Translation Load Calculation
Tentative selection of chain size =
Max allowable chain tension = kgf
Max roller allowable load for conveying roller F1allow = kgf/roller Max roller allowable load for base roller F2allow = kgf/roller
Critical max roller allowable load = kgf/roller (lowest roller allow load)
Chain pitch Dp = mm
Top roller spacing =
Chain weight per meter M = kgf/m
Total chain weight WC = 2.1 x M x L
= kg
Chain weight in accumulation portion WC2 = M x LP2 x L
= kg
Chain weight in transfering portion WC1 = M x LP1 x L
= kg
Coefficient of friction between:
chain and rail when transfering f1 =
chain and conveyed object when accumulating f2 =
Chain speed coefficient K =
Product load acting on each roller WR = WP/m /Dp
= kgf/roller
Maximum static load applied (for 2 strands) TC = (((WP1+ WC1) x f1) + (WP2 x f2) + ((WP2+ WC2) x f1) + (1.1 x WC x f1))
= kgf
Translation load T = Tc x K
= kgf/strand
*WR < Max allowable load per roller & = UNSAFE
T < Max allowable chain tension = SAFE
Input Pg ____ / ____ Output Pg ____ / ____ Reference Pg ____ / ____ Calc. Pg ____ / ____ 0 0 1/0/1900 0 0 0 0.12 0 0 0 0 2 0.09 1 45.72 0 0 30 38.1 4.36 160 2060TR 640 30 2 1200 0 0 1200 1 0 20.14 Type 1 3.81 9.59 3.81
Power Calculation
Product conveying speed v = m/min
Mechanical Efficiency h =
Motor Safety Factor Fsm =
Required motor power P = ( T x v x Fsm) / ( 6120 x h )
( 6120 = 1000 x 60 / 9.81 ) = kW
Selected motor kW size P' = kW
Design kW safe? = SAFE
Motor Selection Calculation
Driving' sprocket pitch diameter Dp =
Drive sprocket teeth (PCD) S1 = ( mm )
Driven sprocket teeth (PCD) S2 = ( mm )
Gearmotor ratio R =
Motor RPM Z =
Actual translation torque Tli = (975 x P x R) / Z
= kgfm
Gli = (W x v2) / (p2 x Z2)
= kgfm2
Moment of Inertia (GD2) of motor G = kgfm2
Ratio of Moment of Inertia (ratio GD2)** RGD = Gli / G
= ≤
Motor Moment of Inertia safe? = SAFE
No. of start-stop (times/hour) n2 =
Load location factor Lf =
Degree of impact fs =
Equivalent radial load Pri = (Tli / S1) x Lf x fs
= kgfm
Gearmotor allowable radial load Pr =
Radial load safe? = SAFE
Input Pg ____ / ____ Output Pg ____ / ____ Reference Pg ____ / ____ Calc. Pg ____ / ____ 15.3
Total system moment of Inertia (GD2) as seen from the motor shaft 87 2.2 24 1450 0.98 0.0000 20 2890 0.0149 0.00 3 ~500 1 1.2 12.13 162.4 243.55 194.6 0.85 1.5 0.02
Table 1
Maximum Allowable Chain Tension (units in kgf)
Chain type Type of base roller 2060TR 2080TR 2100TR
Tsubaki Steel roller
DongBo
Table 2 Table 3 Table 4
Maximum Allowable Top Roller Load Maximum Allowable Base Roller Load Speed Coefficient, K
Chain Size Chain Size Steel Chain speed (m/min)
Plastic Steel R roller below 15
2060TR 10 30 2060TR 15 - 30
2080TR 18 55 2080TR 30 - 50
2100TR 30 85 2100TR 50 - 70
Table 5
Coefficient of friction between chain and rail when conveying, f1
Chain type Type of base roller Dry Lubricated
Top Roller Chain Steel Roller R roller
Table 6
Coefficient of friction between conveying goods and chain when accumulating, f2
Chain type Type of roller on base chain Lubricated
Top Roller Chain Plastic top roller Steel top roller
Table 7 Load factor , Fd No. starts/stops (Times/hour) ~ 10 ~ 200 ~ 500
Load factor U Allowable ratio of Moment of Inertia (GD2) ≤ 0.3 M Allowable ratio of Moment of Inertia (GD2) ≤ 3 H Allowable ratio of Moment of Inertia (GD2) ≤ 10
Table 8 Table 9
Degree of impact Chain approx weight (unit in kgf/m)
Condition Chain Size
Almost none S roller R roller S roller R roller
Slight 2060TR
Great 2080TR
2100TR
Table 10 Load location factor
Load Location L (mm) Single Reduction Double Reduction
SK -SK -SK -SK -SK -DA DA -DA DA -DA DB DA DB DC DA DB DC DA DB DC DA DB DC DA DB DA DB 1900 1150 660 Base roller 1.30 1.50 1.25 1.45 1.60 1.30 Top roller 160 270 400 1.75 1.50 1.60 M 1.25 3.46 5.40 9.11 11.37 6.51 3.68 4.36 5.65 6.76 8.77 2.77 4.29 1.20 1.00 1.20 1.40 1.15 0.12 24 hours/day -0.06 0.09 ~3 hours/day ~10 hours/day K 1.65 H 1.50 1 1.2 1.4 1.6 640 1090 1740 0.85 1.10 1.30 0.80 1.00 1.10
Top roller (kgf/roller)
15 20 H U 0.08 Dry 0.06 25 1.35 1.20 Frame Size ~ 5 10 U M H U M 1.10 0.90 30 35 40 45 50 60 70 80 90 100 607 0.83 0.92 1.00 1.08 1.17 1.25 - - - -608 0.83 0.90 0.97 1.03 1.10 1.17 1.24 - - - -609 0.87 0.92 0.97 1.03 1.08 1.13 1.19 - - - -610 0.87 0.92 0.97 1.03 1.08 1.13 1.19 - - - -611 0.83 0.88 0.93 0.98 1.02 1.07 1.12 1.17 1.22 - - - -606 606 0.83 0.94 1.19 1.56 - - - -607 607 0.82 0.91 1.00 1.29 1.59 1.88 - - - -608 0.81 0.87 0.94 1.03 1.28 1.54 1.80 - - - -609 609 0.86 0.92 0.97 1.13 1.38 1.64 1.90 - - - -610 610 0.86 0.92 0.97 1.13 1.38 1.64 1.90 - - - -611 0.78 0.84 0.90 0.96 1.02 1.08 1.19 1.36 1.53 - - - -1.59 1.76 612 612612 - 0.82 0.87 0.92 0.97 1.08 1.25 1.42 - - - - -613 613 - - 0.83 0.87 0.92 1.13 1.25 - -613 613 1.38 1.63 1.88 -0.96 1.00 614 614 - - - 0.66 0.73 0.80 0.87 0.93 1.00 1.10 1.70 1.90 616 616 - - 0.97 1.00 616 616 -614 614 - 0.83 0.87 1.30 1.50 1.96 -1.11 1.32 1.53 1.75 0.90 0.93 0.97 1.00 1.11 617 617 - - - 0.86 1.32 1.53 1.75 1.96 -617 617 0.89 0.92 0.94 0.95 0.98 618 618618 - - - - 0.85 0.87 0.90 0.93 1.09 1.26 1.43 1.60 1.78 619 619619 - - - 0.85 0.87 0.89 0.91 1.18 1.32 1.46 fs 1 1.0 ~ 1.2 1.4 ~ 1.6 0.93 0.97 1.04 Pr Lo L
