METHOD OF BOLTED CONNECTION OF PARTS AND BOLTED CONNECTION ASSEMBLY Russian patent published in 2015 - IPC F16B35/00 

FIELD: machine building.

SUBSTANCE: invention relates to threaded joint of parts and assemblies using bolts. Bolt is manufactured from separate support head and rod. The bolt body contains two sections: cylindrical with thread at one end and expanded section at the opposite end. The expanded section of the body is made in form of a sphere. The support head is made with through hole in form of a cone, in which along full length of the head the spherical expanded section of the rod is inserted. The bolted joint ensures connection of parts with geometrical deviations and roughness of parts surface in the zones of contact with the support surfaces of the bolt head and nut. The rod in inserted in hole of the bolt support head and parts are connected by nut installation and tightening. At that the bolt head slides by its cone surface over the spherical surface of the expanded section of the rod, and stands by its support surface on the part surface with roughness.

EFFECT: invention excludes bending moment on the bolt rod during parts pressing.

5 cl, 3 dwg