Milling machine milling the inner side of the single-turn crankshaft balance block (Fig. 1), using two transmission routes, the first realizes the spindle speed of the cutter head 6: 1440 × (150 / 150) × (1/20.49) × (32 / 23) × (100/200) = 48.88 (r/min). The second one realizes the rotation speed of the drum shaft 14 with 6 crankshafts: 940×(70/280)×
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