Overall dimensions and technical information are given for information purposes only and are subject to change without notice 63 SCREW AXES Axis, gearbox and motor selection guide 1 Parameter Value Load 200 N Pitch 5 mm Max. speed 0.25 m/s Acceleration 1 m/s2 Application example T = 200 • 0.005 ≈ 0.18 Nm 2π • 0.9 Evaluation of the introduction of a gearbox • It balances torque, motor speed a nd performance characteristics required by the application • Resolution increase • It protects the system from quick reversal of torque or impacts 3 Required torque n = 0.25 • 60 = 3000 rpm 0.005 Motor speed Electric linear axes Catalogue • Screw pitch (p): [mm] l inear displacement per revolution. • Stroke (L): [mm] • Load: [N] • Required linear speed (v): [mm/s] • Acceleration (a): [mm/s²] • Work frequency: [cycles/hour] • Efficiency Design data n = v • 60 p v: Linear speed [m/s] • Required torque (without gearbox) • Motor speed Motor torque and speed calculation 2 T = F • p 2π • η F: Force [N] p: Screw pitch [m] η: Efficiency Enter process data Axial force Fx (N) 200.00 Lateral force Fy (N) 0.00 Orthogonal force Fz (N) 0.00 Force applying point - x (m) 0.00 Force applying point - y (m) 0.00 Force applying point - z (m) 0.00 Roll moment Mx (Nm) 0.00 Pitch moment My (Nm) 0.00 Yaw moment Mz (Nm) 0.00 Speed (m/s) 0.25 Acceleration (m/s^2) 1.00 Payload (kg) 10.00 Required duration (cycles) 1.00E+06 Load applying stroke (mm) 400.00 Total stroke (mm) 400.00 Service factor 1.20 Gearbox ratio 1.00 Axis configuration 3.00 Evaluate actuator performance Requested screw revs 8.00E+07 Requested screw life (km) 400.00 Estimated screw life (km) 5.14E+04 Estimated guide life (km) 3.59E+10 Evaluate motor sizing Screw peak torque (Nm) 0.30 Motor peak torque (Nm) 0.36 Screw speed (rpm) 3000.00 Motor speed (rpm) 3000.00 Minimum rotor inertia (kgm^2) 6.33E-07 Check validation values Safety Factor Screw life (revs) 1.03E+10 4.9E+01 Bearing life (revs) 3.82E+09 1.9E+01 Admissible buckling load (N) 5.30E+04 1.7E+02 Admissible screw speed (rpm) 1.21E+04 4.03E+00 Guiding system life (km) 3.59E+10 1.1E+03 Select actuator from menu MLSTHPR060-AX12-1605 Screw Ø (mm) 16 Screw lead (mm) 5 Ball Ø (mm) 3,175 Screw Ca (kN) 8.3 C0a screw (kN) 15.6 Ca bearing (kN) 7.2 C0a bearing (kN) 3.04 Bearing qty 2 CDC - x (mm) 110 CDC - y (mm) 0 Guide q.ty 1 Carriage/guide q.ty 2 Carriage Ca (kN) 8.1 Carriage C0a (kN) 11.3 Carriage width (mm) 32 Carriage length (mm) 61 Sizing example with AW Sizer Parameters
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