초록 ▼

A track roller system includes a replaceable rim assembly made up of two groups of multi-segments held to the hub in axially spaced position by a multi-segment retainer in the central space between the groups of rim segments, the rim segments retained against endwise movement on the hub by central l

A track roller system includes a replaceable rim assembly made up of two groups of multi-segments held to the hub in axially spaced position by a multi-segment retainer in the central space between the groups of rim segments, the rim segments retained against endwise movement on the hub by central locking surfaces, and the retainers held to the hub by removeable fasteners.

대표청구항 ▼

A track roller for an endless track vehicle, the roller comprising: (a) a hub having a longitudinal axis of rotation, a central outer surface area, and opposite axial end areas; (b) hub locking surfaces at each hub end area, said hub locking surfaces extending generally radially outwardly from the h

A track roller for an endless track vehicle, the roller comprising: (a) a hub having a longitudinal axis of rotation, a central outer surface area, and opposite axial end areas; (b) hub locking surfaces at each hub end area, said hub locking surfaces extending generally radially outwardly from the hub central outer surface area; (c) a replaceable rim assembly on the hub, the assembly comprising two groups of arcuate rim segments axially spaced on the hub, each segment having axially and radially extending side faces, the segments of each group forming an annular track roller rim half when joined together about the hub with said faces adjacent or abutting each other; (d) said rim segments having interior surfaces adapted to lie adjacent the hub outer surface, said interior surface including axially spaced inner and outer surface portions, said inner surface portions corresponding in shape to and adapted to fit over the hub central outer surface area, and said outer surface portions including generally radially outwardly extending rim locking surfaces adapted to engage said hub locking surfaces to provide an interference fit between said locking surfaces for preventing axial outward movement of each assembled track roller rim segment with respect to the hub, said rim segments including generally radially extending inner end faces, and said hub and rim locking surfaces also extending in a generally axial direction towards the central section of said hub; and (e) a removable retainer means arranged to fasten at least the ends of said rim segments opposite said rim locking surfaces relative to the hub and comprising a plurality of segments located within and spanning the axial space along the hub between said rim assemblies, and said retainer means including generally radially extending end surfaces that engage said inner end faces of said rim segments, said inner end faces of said rim segments and said end surfaces of said retaining means defining cam and follower surfaces; (f) removable fastener means for securing the retaining means relative to the hub; (g) said cam follower surfaces arranged to urge axially opposite rim segments axially apart towards said hub end areas when said removable fastening means is secured; and (h) rotation preventing key means for locking said rim segments against rotation relative to said hub.