CHAIN GEAR Russian patent published in 2009 - IPC F16H7/06 F16H55/30 

FIELD: machine building.

SUBSTANCE: invention refers to general machine building and can be implemented in any of its branches where mechanic gears of rotary motion are used. The chain gear consists of two or more wheels-gears connected with chain (3). The gear corresponds to a unit wherein gear rim (K) consists of a set of separate sector parts connected with disk (4) of a gear with fit ring (6). Connections of gear rim (K) with disk (4) and fit ring (6) contain a system of slots and lugs facilitating adjustment of diametre of initial circumference of the gear and consequently its step bringing it to correspondence with the step of the chain by its wear. Adjustment is carried out with angular turn of the disk relative to the fit ring with tap wrench (8) with gear.

EFFECT: increased operation life of chain, reduced cost for spare chains for facilitation of required resource of chain gear.

6 dwg