10results about "Multiple wheel assembly" patented technology

Method for increasing the contact area (6) of a wheel (1) with a rim (2) having at least one expandable element (7) in the area of ​​a rim (2) of the wheel (1), wherein the expandable element (7) is brought from a rest state to an expanded state by filling it with a fluid, in which the running surface (10) of the wheel (1) is widened completely, wherein the expandable element (7) is arranged in the rim (2) in such a way that the width of the wheel (1) or of a vehicle equipped therewith is not increased, characterized in that the expandable element (7) comprises a three-dimensional textile support structure.

The present disclosure provides embodiments of a lock ring assembly for a multi-piece wheel rim. The multi-piece wheel rim includes a rim (301,501), a bead seat band (303,503), a tire flange (305,505), an O-ring (313,513), and a groove (311,511). The lock ring assembly includes an endless ring (307,507) and a two-piece segmented saddle lock-ring (309,409,509). The two-piece segmented saddle lock-ring (309,409,509) engages with the groove (311,511) facilitating retro-fit. An endless ring (307,507) is placed on the saddle lock-ring (309,409,509). A taper on a radially inner surface of the endless ring (307,507) matches with a taper on a radially outer surface of the two-piece segmented saddle lock-ring (307,507), wherein the taper impart self-locking. The radially inner surface is placed on the radially outer surface of the two-piece saddle saddle lock-ring (309,409), and the self-locking taper prevents movement of the endless ring (307).

A drive assembly for a vehicle is disclosed. The drive assembly comprises a central hub having an axis of rotation; an in-wheel electrical machine comprising a stator and a rotor; and a rim assembly comprising an inward circumferential part and an outward circumferential part, said inward circumferential part and said outward circumferential part being disposed adjacent each other along said axis of rotation, each part comprising a rim section for carrying a respective tyre, wherein the rim assembly is coupled to the hub. The in-wheel electrical machine is arranged outwardly of, and coupled to, the hub. A vehicle comprising the drive assembly is also disclosed.

A surface cleaning device is disclosed. The surface cleaning device includes a housing; a spray bar assembly connected to the housing, the spray bar assembly spraying a ground surface to be cleaned with a high pressure liquid; and a plurality of wheels connected to the housing, each of the wheels having a hub and a plurality of rollers to move the surface cleaning device in multiple directions.

A modular wheel assembly for a power drive unit (PDU) may comprise a hub and a disc stack coupled to the hub. The hub may be a splined hub defining a plurality of spline recesses. The disc stack may comprise a plurality of discs. Each disc of the plurality of discs may comprise a ring having a plurality of splines that are complementary to the spline recesses, and that are configured to interlock with the spline recesses. Each disc may further comprise an annular segment made of one of a first material and second material. The annular segment may be a tire. In the event of damage or wear, each disc in the plurality of discs may be removed and repaired or replaced.

The utility model relates to robot technical field provides a kind of robot wheel and agricultural robot.The robot wheel described above, including: wheel hub and a pair of rubber wheel, the wheel hub includes: a pair of first rolling part and second rolling part, a pair of the first rolling part is parallelly arranged, the two ends of the second rolling part are connected with a pair of the first rolling part respectively, the diameter of the second rolling part is less than the diameter of the first rolling part, to make a pair of the first rolling part between formation first annular groove, the shape of the first annular groove is compatible with the shape of the heating track, the first annular groove is used to be connected with the heating track rolling;Each rubber wheel is sleeved on the outside of the first rolling part described above.The robot wheel described above, not only can walk on the heating track in greenhouse, also can walk on farmland ground, solves the problem that existing wheel can only adapt to single ground, widens the application environment of robot wheel.

A surface cleaning device (10; 100) is disclosed. The surface cleaning device (10; 100) includes a housing (12; 112); a spray bar assembly (16; 116) connected to the housing (12; 112), the spray bar assembly (16; 116) spraying a ground surface (G) to be cleaned with a high pressure liquid; and a plurality of wheels (18; 118) connected to the housing (12; 112), each of the wheels (18; 118) having a hub (40; 140) and a plurality of rollers (42; 142) to move the surface cleaning device (10; 100) in multiple directions.

An in-wheel electrical generator for a vehicle is disclosed. The in-wheel generator comprises: a stator configured to be coupled to a non-rotating spindle of a vehicle; and a rotor configured to be indirectly coupled to a rotating hub of a vehicle. The in-wheel electrical generator is configured to be arranged outwardly of the rotating hub. A vehicle comprising such an in- wheel generator is also disclosed, along with an ancillary unit system for a trailer which uses such an in- wheel generator to power the ancillary unit.