Rubbing experiment table for multi-disc bolt connection rotor and testing method thereof

The invention discloses a multi-disc bolt connection rotor rub-impact experiment table and a test method thereof. By means of the rub-impact device, accurate adjustment of rub-impact parameters can be achieved; through the axial movement on the slide rail, the rub-impact test on each disc of the multi-disc-hub-bolt connection structure can be realized, and meanwhile, the rub-impact test on the high-pressure turbine disc can be realized; a spring limiting and locking nut and a rub-impact gap locking nut are additionally arranged, so that the looseness of the spring limiting nut and the rub-impact gap adjusting nut caused by vibration in the rub-impact process is avoided, and the stability of the rub-impact test is ensured; the rub-impact gap and the rub-impact rigidity can be adjusted by screwing and loosening the rub-impact gap adjusting nut and replacing outer springs with different wire diameters; the influence of the bolt pre-tightening force, the bolt tightening process, the rub-impact form, the rub-impac