HYDRAULIC NUT RUNNER Russian patent published in 2016 - IPC B25B21/00 

FIELD: machine building.

SUBSTANCE: hydraulic nut runner contains drive in form of a hydraulic cylinder. Piston is located in the drive. Actuator is made in form of spring-loaded ratched wheel and lever, connected with frame and interacting through axis with rod of the hydraulic cylinder. At both sides of the lever in the shaft zone of the nut runner teeth are made in form of ring sector. At end face of the ratchet teeth are made as ring sector and reversely to the lever teeth depressions are made.

EFFECT: reduction of teeth wear.

5 dwg