Roller-supported multi-piece omnidirectional wheel

A roller-supported multi-piece omnidirectional wheel, comprising a rim, a support ring, a plurality of wheel pieces, and a plurality of rollers;

• wherein the wheel pieces are rotatably sleeved on the support ring and arranged circumferentially around an outer periphery of the rim about a central axis of the rim;
• the support ring is concentrically arranged with the rim;
• an outer side of the rim is circumferentially recessed with a mounting groove, and the rollers and the wheel pieces are arranged within the mounting groove;
• the roller-supported multi-piece omnidirectional wheel further comprises roller supports which are circumferentially mounted within the mounting groove about the central axis of the rim;
• a lower end of each of the roller supports is sleeved and fixed onto a fixed column within the rim, and an upper end of each of the roller supports extends toward both sides of the mounting groove to form two branched portions;
• the branched portions are provided with pivot shafts, and the rollers are pivoted onto the pivot shafts;
• central axes of both the wheel pieces and the rollers are perpendicular to the central axis of the rim;
• and the rollers are in rolling contact with an outer periphery of the wheel pieces.