Rigidity adjustable radial sliding bearing with spring of tile block supporting point

The invention discloses a rigidity adjustable radial sliding bearing with a spring of a tile block supporting point. The rigidity adjustable radial sliding bearing comprises a bearing tile block for supporting a rotor and a bearing seat for supporting the bearing tile block; a tile block supporting point elastic bearing assembly is arranged between the bearing tile block and a shaft bearing; the tile block supporting point elastic bearing assembly comprises the tile block supporting point, a spring set, a pre-tightening bolt and a rough adjustment bolt; the tile block supporting point is connected onto the rough adjustment bolt through the pre-tightening bolt; the top surface of the tile block supporting point is hinged to the bearing tile block and the spring set with an elastic supporting effect is arranged between the bottom surface of the tile block supporting point and a rough adjustment spring; the spring set sleeves on a screw rod of the pre-tightening bolt; the tile block supporting point and the spri