A rotor arranged around an outer peripheral surface of a stator of a generator, comprising: • a rotor yoke having a mounting surface and an outer peripheral surface which are opposite to each other in a radial direction; • a plurality of beads distributed and spaced apart on the mounting surface along a circumferential direction of the rotor yoke, wherein a radial distance between each of the plurality of beads and the mounting surface is adjustable; • a plurality of integrated magnetic pole modules, each of which is detachably connected between two adjacent beads, and comprises a carrier plate and a plurality of permanent magnets arranged on the carrier plate, wherein the carrier plate is attached to the mounting surface; and • a plurality of fixing members, wherein each of the plurality of beads is mounted on the mounting surface by the plurality of fixing members, and each of the plurality of fixing members has an operation portion protruding through the outer peripheral surface, • the rotor yoke is provided with a plurality of first through holes arranged in rows and columns; • each of the plurality of beads is provided with a plurality of second through holes and with at least one second process through hole; wherein • each of the plurality of beads is provided with the plurality of second through holes along a length extension direction of the bead, and each of the plurality of beads is arranged corresponding to a column of the first through holes, and at least a portion of the first through holes corresponds to at least a portion of the second through holes; and • the rotor yoke is further provided with a plurality of first process through holes arranged at least in columns; and • each of the plurality of beads is provided with the at least one second process through hole corresponding to one column of the plurality of first process through holes, and the radial distance between each of the plurality of beads and the mounting surface is adjustable via the plurality of first process through holes and the at least one second process through hole, characterized in that, • the plurality of first through holes and the plurality of first process through holes on the rotor yoke are threaded through holes; • the plurality of second through holes on the bead are smooth through holes, and the at least one second process through hole is threaded through holes. • a rotor yoke having a mounting surface and an outer peripheral surface which are opposite to each other in a radial direction; • a plurality of beads distributed and spaced apart on the mounting surface along a circumferential direction of the rotor yoke, wherein a radial distance between each of the plurality of beads and the mounting surface is adjustable; • a plurality of integrated magnetic pole modules, each of which is detachably connected between two adjacent beads, and comprises a carrier plate and a plurality of permanent magnets arranged on the carrier plate, wherein the carrier plate is attached to the mounting surface; and • a plurality of fixing members, wherein each of the plurality of beads is mounted on the mounting surface by the plurality of fixing members, and each of the plurality of fixing members has an operation portion protruding through the outer peripheral surface, • the rotor yoke is provided with a plurality of first through holes arranged in rows and columns; • each of the plurality of beads is provided with a plurality of second through holes and with at least one second process through hole; wherein • each of the plurality of beads is provided with the plurality of second through holes along a length extension direction of the bead, and each of the plurality of beads is arranged corresponding to a column of the first through holes, and at least a portion of the first through holes corresponds to at least a portion of the second through holes; and • the rotor yoke is further provided with a plurality of first process through holes arranged at least in columns; and • each of the plurality of beads is provided with the at least one second process through hole corresponding to one column of the plurality of first process through holes, and the radial distance between each of the plurality of beads and the mounting surface is adjustable via the plurality of first process through holes and the at least one second process through hole, characterized in that, • the plurality of first through holes and the plurality of first process through holes on the rotor yoke are threaded through holes; • the plurality of second through holes on the bead are smooth through holes, and the at least one second process through hole is threaded through holes.