Rollers and system for supporting a wheel, of horizontal axis including them, particularly for bucket wheels playing a part in nuclear fuel dissolvers

摘要

The subject of the present invention is rollers 3 for supporting a wheel 1 of horizontal axis, characterised in that they include a cylindrical part 3' which is machined so as to interact with the rim of the said wheel 1, extended at one end by a frustoconical part 3'', flaring out; the said cylindrical part 3' being mounted so as to rotate on the said frustoconical part 3'', and in that the free end face of the said frustoconical part is, on at least part of its height, inclined, or has, on at least part of its height, an attached surface which is inclined or capable of inclining. More generally it relates to the system for supporting such a wheel 1, including the said rollers 3 and their means (key 11) for dismantleable fixing to a support 4. IMAGE