Patent ID: 11878551
Assignee: ANHUI JBH MEDICA L APPARATUS CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 17:
18. An omnidirectional wheel, comprising:
a hub;
a plurality of support members, wherein the plurality of support members are circumferentially distributed on the hub, each of the support members has a first mounting surface and a second mounting surface disposed opposite one another, the first mounting surface is provided with a first mounting shaft, the second mounting surface is provided with a second mounting shaft, and a distance between a first axis of the first mounting shaft and a wheel center of the hub is less than a distance between a second axis of the second mounting shaft and the wheel center of the hub;
a plurality of first rollers, wherein at least one first roller of the first rollers is rotatably disposed on each first mounting shaft; and
a plurality of second rollers, wherein at least one second roller of the second rollers is rotatably disposed on each second mounting shaft;
wherein, along a circumferential direction of a distribution circumference of the plurality of support members, the plurality of first rollers and the plurality of second rollers are disposed at intervals in sequence, one of the second rollers is between two adjacent first rollers, and one of the first rollers is between two adjacent second rollers;
each of the first rollers has a first large diameter end and a first small diameter end, a diameter of the first large diameter end is larger than a diameter of the first small diameter end, and the first small diameter end has an accommodating hole,
each of the second rollers has a second large diameter end and a second small diameter end, a diameter of the second large diameter end is larger than a diameter of the second small diameter end, and
the second small diameter end of each of the second rollers is at least partially embedded in the accommodating hole of the first small diameter end of an adjacent first roller;
the diameter of the first small diameter end of each of the first rollers is larger than the diameter of the second large diameter end of each of the second rollers;
for a same support member, the first axis of the first mounting shaft is parallel to the second axis of the second mounting shaft;
the hub is provided with a plurality of first grooves, the plurality of first grooves are disposed at intervals along a circumferential direction of a distribution circumference of the plurality of support members, the plurality of first grooves are disposed in one-to-one correspondence with the plurality of support members, each first groove of the first grooves comprises a bottom mounting surface and two side mounting surfaces, the two side mounting surfaces are disposed at intervals along the circumferential direction of the distribution circumference, and each of the first grooves is configured to provide an installation space for a support member corresponding to the first groove, so as to enable the support member to be installed on the hub;
the support member comprises a first base portion that is matched with the first groove, the first base portion comprises a base bottom surface and two base side surfaces on both sides of the base bottom surface, and the first base portion is configured to match the first groove so as to enable the support member to be installed on the hub;
the first base portion is provided with a threaded hole, and an axis of the threaded hole points to the wheel center of the hub;
a bottom of the first groove is provided with a through hole, and in a case where the first base portion of the support member is inserted into the first groove, the through hole is concentric with a corresponding threaded hole on the first base portion; and
a length of the first mounting shaft is less than a length of the second mounting shaft.