MULTI-ROW DRIVE ROLLER CHAIN Russian patent published in 2024 - IPC F16G13/04 

FIELD: units and parts of machines; chains.

SUBSTANCE: invention relates to design of multi-row drive roller chains. Multi-row drive roller chain comprises plates symmetrically located relative to chain axis. Two identical bushings are fixed in holes of each plate on one side; these bushings are movably mounted on the cylinders with their ends protruding from differently directed plates towards each other and form hinges with the cylinders. Roller is movably mounted between the plates on each two adjacent bushings. Chain contains only an even number of rows. In the inner plates of the chain the bushings are installed symmetrically relative to the longitudinal axis of the inner plates. Length of the bushing ends protruding from all the plates of the chain is the same. Number of differently directed plates differs by one, and their smaller number is two times less than the number of rows of the chain. Inner diameter of the rollers is in the ratio of the average outer and inner diameters of the two bushings located inside the roller, the diameter of the cylinder and the allowable wear of the chain hinges.

EFFECT: longer life of the chain is achieved.

1 cl, 3 dwg