BOLTED CONNECTION OF COMPONENTS Russian patent published in 2016 - IPC F16B35/00 

FIELD: manufacturing technology.

SUBSTANCE: bolted connection involves making of a bolt, installation of the bolt into the components' openings and tightening by a nut, at that, the bolt is made of a head and rod separately; the rod has a cone section on one end and a cylinder section with a threaded part on the opposite end. Conical and cylindrical sections of the rod are connected by radial surface, and the angle of the cone diverging towards the rod end section opposite to the section with the thread is made equal to 6-15°; head height h=(0.65-1)d_rod (rod diameter) is made with a through cone hole, the cone angle of the hole in the head corresponds to the cone angle of the diverging section of the rod. After that, the rod is inserted into the conical hole of the head until the contact of conical surfaces of the rod and head, and the assembled bolt is inserted into the hole of assembled components; components are connected by installation and tightening of the nut. Note here that along the generatrix of the conical surface of the head there is made groove (slot) with a cross section, for example, 1.5×1.3 mm (Fig. 2), into which there is placed a bar with Ø1.5 mm and made of a material harder than that of the rod so, that it extends from the conical surface by 0.2-0.3 mm at the length equal to maximum 0.7 of the length of the forming head from the face end of the head with a larger diameter.

EFFECT: disclosed is a bolted connection of components.

1 cl, 3 dwg