TOOL FOR TIGHTENING THE NUT ON THE BOLT TO FORM A FIXED JOINT Russian patent published in 2021 - IPC B25B29/02 

FIELD: tooling.

SUBSTANCE: invention relates to a tool for tightening a nut on a bolt to form a fixed joint. The tool contains a connector (13) of the tool with an energy source, a corrector (11) for setting a given bolt pulling force, a first motor (90'), a tensioner shaft (26) of the bolt with an internal thread (26'), made with the possibility of connecting to the bolt, and the bolt tensioner shaft is made with the possibility of bringing it into rotation by the specified first motor (90'), a hydraulic piston (20), an oil pump (34'), made with the possibility of supplying oil to the hydraulic piston (20), moreover, the hydraulic piston is made with the possibility of extending and pulling the bolt when oil is supplied under pressure from the oil pump (34') to the hydraulic piston (20), the second motor (91'), the cartridge (27), made with the possibility of bringing it into rotation by the second motor. The tool additionally contains a hydraulic tensioner shaft (24), which is attached to the hydraulic piston (20), while the hydraulic tensioner shaft (24) is connected to the specified tensioner shaft (26) of the bolt by means of a locking grip (25), while the chuck (27) is connected axially with the possibility of rotation with the tensioner shaft (26) of the bolt for interaction with the nut.

EFFECT: ensuring the operation of the tool, which will become less time-consuming and difficult when using it along with other hand tools.

5 cl, 4 dwg