Stay bolt adjusting mechanism of gas turbine pull rod type rotor and operating method thereof

The invention provides a stay bolt adjusting mechanism of gas turbine pull rod type rotor. The stay bolt comprises a pull rod and two pull-rod nuts arranged at the two ends thereof, the stay bolt adjusting mechanism comprises a rotary sleeve and a compressor, the compressor is arranged on the outer end face of the pull-rod nut, so as to provide axial pressure for the pull rod; the rotary sleeve is sheathed and connected on the pull rod nut, and the inner surface of the rotary sleeve and the outer side face of the pull rod nut are co-ordinately arranged. Actual use and verification show that the adjusting mechanism has smart and reasonable structure design as well as simple and convenient manufacturing and operation, so that accurate adjusting in up-down direction can be carried out on the stay bolt even the gas turbine pull rod type rotor is in vertical state, thus well meeting the accuracy requirement of adjusting on the stay bolt of gas turbine pull rod type rotor and ensuring the quality and requirement of