WELL ROD PUMPING UNIT Russian patent published in 2019 - IPC F04B47/02 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil and gas industry and is intended for use in sucker-rod pumping installations for turning the column of sucker rods. Well pumping unit contains a pumping unit with a balance bar having two convex cylindrical walls on the head, a rod column suspended from the balance bar by means of a cable, and a rod rotor. Handle of the rod rotor is connected to the balance bar by means of a roller mounted for rotation on the upper end of the handle. Roller is made in the form of a multiple V-belt drive and fixed to the handle with a screw passing through the drive opening. Screw threaded end wrapped in a threaded sample, made on the handle. Screw head is located in a cylindrical sample, made at the end of the drive. Middle cylindrical wall of the drive is constantly in contact with one convex cylindrical wall of the balancer head adjacent to the handle. Handle is spring loaded with a tension spring, one end of which is connected to the body of the rod rotor and the other end to the handle.

EFFECT: overall dimensions decrease.

1 cl, 4 dwg