Diagnosis of the Misaligned Faults of the Vertical Test Instrument of High-Precision Industrial Robot Reducer

Figure 12

The frequency spectrum of the transmitted torque for 0.5 mm radial misalignment under different rotation speeds. (a) 200 rpm; (b) 400 rpm; (c) 600 rpm; (d) 800 rpm.

(a)

(b)

(c)

(d)