Centrifugal machine rotor sleeve

The invention discloses a centrifugal machine rotor sleeve, and relates to the technical field of centrifugal equipment, the centrifugal machine rotor sleeve comprises a sleeve main body, the sleeve main body can be used for being inserted into a rotor of a centrifugal machine, a plurality of centrifugal tube fixing devices are arranged in the sleeve main body from top to bottom, and each centrifugal tube fixing device comprises two telescopic devices; the two telescopic devices in each centrifugal tube fixing device are fixed to the two sides of the inner wall of the sleeve body respectively and arranged oppositely, each telescopic device comprises a telescopic body and a telescopic spring, one end of each telescopic spring is fixed to the inner wall of the sleeve body, and the other end of each telescopic spring is fixed to the sleeve body. The other end of the telescopic spring is fixed to the telescopic body, and the end, away from the telescopic spring, of the telescopic body abuts against the centrifuga