B - Operations – Transporting – 24 – B
Patent
B - Operations, Transporting
24
B
B24B 39/04 (2006.01) B24B 5/42 (2006.01)
Patent
CA 2138899
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 cancelled at load receiving bearings operatively interposed between the pair of tool housings.
Les congés de raccordement de paires adjacentes de manetons décalés angulairement d'un vilebrequin de moteur à combustion interne font l'objet d'un traitement de renforcement contre la fatigue par roulage sous pression au moyen de galets inclinés opposés, montés dans des cages à l'extrémité inférieure d'une paire de porte-outils pouvant tourner l'un par rapport à l'autre et maintenus parallèles par une paire de mâchoires d'un bâti de serrage flottant. Ce bâti permet aux galets de suivre les manetons du vilebrequin lorsque celui-ci est mis en rotation et, ainsi, de traiter simultanément les congés de raccordement des manetons décalés angulairement. Les forces de réaction au travail des galets opposés sont absorbées par des coussinets de charge interposés entre la paire de porte-outils.
Gottschalk William P.
Lauten Hans T.
Hegenscheidt Corporation
Macrae & Co.
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