Fixing a bearing bolt to roller tappets

Details Fixing a bearing bolt to roller tappets Fixing a bearing bolt to roller tappets

F - Mech Eng,Light,Heat,Weapons

01

L

F01L 1/14 (2006.01) B23P 11/00 (2006.01)

Patent

CA 2598748

The invention relates to the fixing of a bearing bolt (6) in a cylindrical housing (1) of a roller tappet (2) actuated in the direction of a longitudinal axis (Z), especially for a tappet push rod valve drive of an internal combustion engine. The bearing bolt (6) is mounted in boreholes (7) of the housing (1), that extend in a transversal plane (XY) of the roller tappet (2), which is perpendicular to the longitudinal axis (Z), and are positively or non- positively connected to the housing (1) by material deformation. The material deformation is embodied as at least one segment (9, 10), at least one of said segments (9) comprises a full radial load region (16) of the bearing bolt (6). A section (15) of the bearing bolt (6) extending around the transversal plane (XY) is free of the material deformation.

L'invention concerne la fixation d'un axe de palier (6) dans un logement cylindrique (1) d'une tige-poussoir à rouleau (2) fonctionnant dans le sens de l'axe longitudinal (Z), en particulier pour une commande de soupape de la tige-poussoir d'un moteur à combustion interne. Ledit axe de palier (6) est disposé dans des creux (7) du logement (1), qui s'étendent dans un plan transversal (XY) de la tige-poussoir (2) à rouleaux, vertical par rapport à un axe longitudinal (Z) et il est relié au logement (1) grâce à la déformation de matière par liaison de forme ou de force. La déformation de matériau peut être effectuée sur un ou plusieurs segments (9, 10), un de ces segment (9) comprenant la totalité d'une zone de charge (16) radiale de l'axe de palier (6). Une partie s'étendant autour du plan transversal (XY) de l'axe de palier (6) est exempt de déformation de matériau.

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