Computer Controlled Solutions Ltd
Test Rigs, Monitoring, Data Acquisition & Control
Planetary Gearbox — Torque Summing
Two motors driving a common output through an epicyclic gear train
Sun (A)
Ring (B)
Carrier (Out)
Motor A — Sun
Speed200 RPM
Torque50 Nm
Motor B — Ring
Speed200 RPM
Torque50 Nm
Output — Carrier
Speed
200RPM
Torque
100Nm
Presets
How It Works
Nout = (Nsun·Zs + Nring·Zr) / (Zs + Zr)
The planetary set sums the two inputs weighted by tooth count. Torques add at the output. If one motor fails, the other still drives — at a different ratio.
