KEY FOR ASSEMBLY OF PIPE THREADED CONNECTIONS (VERSIONS) Russian patent published in 2018 - IPC B25B13/50 

FIELD: machine engineering.

SUBSTANCE: device consists of a body (1), a clamping unit (2), clamping rollers (3). The clamping unit (2) consists of three cams (4), which are in the diluted state with the help of springs (5). In the cams (4), fixing inserts (6) are installed, which have exchangeable sliding blocks (7) that hold the body of the pipe (clutch) (8). All the parts of the clamping unit (2) are in the common body. The clamping unit (2) can be rotated relative to the key body (1) by 60° in one or the other direction due to the presence of the slots (9) in the key body (1) and the latch (10) associated with the clamping unit (2). To adjust the position of the clamping unit (2) relative to the body (1), the device is also equipped with a brake (11).

EFFECT: increase of manufacturability and reliability of the device for screwing-unscrewing of pipes in conditions of repair bases.

3 cl, 5 dwg