Temperature measuring structure for main bearing of aero-engine

The invention belongs to the technical field of aero-engine main bearing temperature measurement design, and particularly relates to an aero-engine main bearing temperature measurement structure. The bearing casing sleeves the periphery of the main shaft, a lead hole is formed in the side wall of the bearing casing, and a mounting hole is formed in the bearing casing; the main bearing is mounted in the bearing casing and sleeved on the main shaft; a pouring hole is formed in the corner part of the L-shaped pipe, the L-shaped pipe is arranged in the bearing casing, one end of the L-shaped pipe is connected to the inner side of the bearing casing through a connecting edge by using a screw and is communicated with the lead hole, and the other end of the L-shaped pipe abuts against the interior of the bearing casing and is communicated with the mounting hole; the temperature sensor is mounted in the mounting hole, the head of the temperature sensor is in contact with the outer ring of the main bearing, and a tail