FLANGELESS CONNECTION OF CYLINDRICAL PARTS Russian patent published in 2017 - IPC F16B21/06 F16B21/18 

FIELD: machine engineering.

SUBSTANCE: connection comprises a male part with a blind rectangular groove, a female part with a through rectangular groove, a ring segment mounted in the cavity formed when the slots are aligned, a ring segment attachment part to the female part, and a shutter to hold the ring segment. On the part of the segment of the ring facing the male part, the outer cylindrical and internal conical grooves are made, another part of the ring segment is connected to the spring cut sleeve. The slotted sleeve serves as a fastening unit and is axially movable on the female part that overlaps the outer cylindrical bore and functions as a shutter. The male part is provided with an external thread and a union nut.

EFFECT: simple and convenient installation, ensuring fast assembly at the well and reliable connection of modular sections of submersible pumping units.

5 dwg