Omni wheel and vehicle

Abstract

An omnidirectional wheel and a carrier. The omnidirectional wheel includes a hub and a roller assembly. The roller assembly includes a plurality of rollers. The rollers are rotatably disposed on the hub. At least one of the rollers and the hub includes a body and a bushing with an eccentrically configured axle hole. The bushing is concentrically disposed on the body.

Claims

1. An omnidirectional wheel, comprising: a hub; and a roller assembly including a plurality of rollers rotatably disposed on the hub; wherein, At least one of the rollers and the hub includes a body and a bushing having an eccentrically configured shaft hole and being concentrically inserted into the body.

2. The omnidirectional wheel as described in claim 1, wherein only the hub includes the body and the bushing.

3. The omnidirectional wheel as described in claim 2 further includes an outer hub bearing, the bushing being rotatably mounted on the body through the outer hub bearing, the outer hub bearing being located between the bushing and the body.

4. The omnidirectional wheel as described in claim 3 further includes an inner hub bearing, which is disposed in the bushing, the bushing being located between the outer hub bearing and the inner hub bearing.

5. The omnidirectional wheel as described in claim 2 further includes a hub shaft that passes through the shaft hole of the bushing.

6. The omnidirectional wheel as described in claim 5 further comprises: a buffer sleeve passing through the hub, the bushing being movably passing through the buffer sleeve; a wheel frame including a top plate, a first side plate and a second side plate, the first side plate and the second side plate being connected to different sides of the top plate, the hub being located between the first side plate and the second side plate; and a first elastic element and a second elastic element, the first elastic element abutting between the first side plate and the hub, the second elastic element abutting between the second side plate and the hub, the hub shaft passing through the bushing, the first side plate, the second side plate, the first elastic element and the second elastic element.

7. The omnidirectional wheel as claimed in claim 6, wherein the first side plate has a first outer surface and a first arcuate groove, the first outer surface facing away from the second side plate, the first arcuate groove being located on the first outer surface, and the second side plate has a second outer surface and a second arcuate groove, the second outer surface facing away from the first side plate, the second arcuate groove being located on the second outer surface.

8. The omnidirectional wheel as described in claim 1, wherein only each of the rollers includes the body and the bushing.

9. The omnidirectional wheel as claimed in claim 1, wherein the roller assembly further includes a plurality of mounting brackets and a plurality of roller shafts, each of the mounting brackets including a fixed plate portion and two cantilever portions, the two cantilever portions protruding from the same side of the fixed plate portion, the fixed plate portions of the mounting brackets being fixed to the wheel hub, the opposite ends of the roller shafts being respectively connected to the side of the two cantilever portions away from the fixed plate portion, and the rollers being rotatably mounted on the wheel hub through the roller shafts.

10. The omnidirectional wheel as claimed in claim 9, wherein the roller assembly further includes a plurality of clamping springs, each of the clamping springs having a fixed end and a movable end, the fixed ends of the clamping springs being fixed to opposite sides of the fixed plates of the mounting brackets, and the cantilever portions of the mounting brackets being located between the two movable ends of two adjacent clamping springs.

11. The omnidirectional wheel as claimed in claim 1, wherein the hub comprises a plurality of discs, and the number of roller assemblies is plurality of, the roller assemblies being disposed on the discs and arranged along an axial direction.

12. A vehicle comprising: a carrier; and an omnidirectional wheel as described in claim 1, mounted on the carrier.

13. The vehicle as described in claim 12, wherein only the hub comprises the body and the bushing.

14. The vehicle as claimed in claim 13, wherein the omnidirectional wheel further includes an outer hub bearing, the bushing being rotatably mounted on the body through the outer hub bearing, the outer hub bearing being located between the bushing and the body.

15. The vehicle as claimed in claim 14, wherein the omnidirectional wheel further includes an inner hub bearing disposed in the bushing, the bushing being located between the outer hub bearing and the inner hub bearing.

16. The vehicle as claimed in claim 13, wherein the omnidirectional wheel further includes a hub shaft passing through the axle hole of the bushing.

17. The vehicle as claimed in claim 16, wherein the omnidirectional wheel further comprises: a buffer sleeve passing through the hub, the bushing being movably passing through the buffer sleeve; a wheel frame including a top plate, a first side plate and a second side plate, the first side plate and the second side plate being connected to different sides of the top plate, the hub being located between the first side plate and the second side plate; and a first elastic element and a second elastic element, the first elastic element abutting between the first side plate and the hub, the second elastic element abutting between the second side plate and the hub, the hub pivot passing through the bushing, the first side plate, the second side plate, the first elastic element and the second elastic element.

18. The vehicle as claimed in claim 17, wherein the first side plate has a first outer surface and a first arcuate groove, the first outer surface facing away from the second side plate, the first arcuate groove being located on the first outer surface, and the second side plate has a second outer surface and a second arcuate groove, the second outer surface facing away from the first side plate, the second arcuate groove being located on the second outer surface.

19. The vehicle as claimed in claim 12, wherein only each of the rollers comprises the body and the bushing.

20. The carrier as claimed in claim 12, wherein the roller assembly further includes a plurality of mounting brackets and a plurality of roller shafts, each of the mounting brackets including a fixed plate portion and two cantilever portions protruding from the same side of the fixed plate portion, the fixed plate portions of the mounting brackets being fixed to the hub, the opposite ends of the roller shafts being respectively connected to the side of the two cantilever portions away from the fixed plate portion, and the rollers being rotatably mounted on the hub via the roller shafts.

Images