3D SCANNING GAUGE FOR THREADING THE STUD HOLES OF THE MAIN CONNECTOR ON THE REACTOR PRESSURE VESSEL Russian patent published in 2023 - IPC G01B11/24 G21C17/03 

FIELD: nuclear power plant repairs.

SUBSTANCE: invention relates to repair technology during the operation of a nuclear power plant, specifically concerns a three-dimensional scanning measuring device for measuring the thread of the holes for the studs of the main connector on the reactor vessel. The device includes a transport cart, a positioning mechanism mounted on the transport cart, a pivoting mechanism, and a lifting mechanism for scanning stud holes. The specified positioning mechanism slides relative to the transport trolley; the pivoting stud hole scanning mechanism is connected to the lifting mechanism for scanning stud holes and driven up and down by the lifting mechanism for scanning stud holes. Said transport cart includes a transport cart arc platform, an auxiliary support wheel under the transport cart platform, a guide roller block on both sides of a waist hole on the transport cart platform, and a transport cart gear on the inside of the transport cart arc. In this case, the waist hole is used as a hole for installing the positioning mechanism, and on the outer side of the long side of the hole, a block of guide rollers is installed, which interacts with the positioning mechanism to form a slide. In this case, the transfer gear of the transport trolley and the positioning mechanism are engaged by the gears.

EFFECT: technical result consists in the possibility to obtain thread data for the holes for the main connector studs on the NPP reactor vessel, and also makes it possible to better adapt to the scanning measurement of holes for the main connector studs of various sizes on the reactor vessel.

13 cl, 6 dwg