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ENGINE CRANK PIN ROLLING EQUIPMENT, ROLLING TOOL AND METHOD OF ROLLING ADJACENT AND OFFSET CRANK PINS.
ENGINE CRANK PIN ROLLING EQUIPMENT, ROLLING TOOL AND METHOD OF ROLLING ADJACENT AND OFFSET CRANK PINS.
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机译:发动机曲轴销轧制设备,轧制工具以及轧制相邻和偏置曲轴销的方法。
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摘要
Arcuately offset pairs of juxtapositioned pin journals of an internal combustion engine crankshaft have their fillets pressure rolled for fatigue strengthening by opposing inclined rollers carried in cages at the lower ends of a pair of relatively rotatable tool housings supported in a side-by-side relationship by a pair of jaws of floating clamping structure. This structure allows the rollers to follow the crank pin journals as the crankshaft is being turned so that arcuately offset crank pin fillets can be simultaneously pressure worked and strengthened. Opposing roller reaction loads are canceled at load receiving bearings operatively interposed between the pair of tool housings.
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