CURVED-TOOTH GEAR ENGAGEMENT (VERSIONS) AND PLANETARY TRANSMISSION INCORPORATING IT Russian patent published in 2008 - IPC F16H55/08 F16H1/32 

FIELD: engines and pumps.

SUBSTANCE: invention is designed to be used in the development of small-size mechanical rotary motion transfer high-gear-ratio mechanisms. In curved-tooth gear engagement, smaller gear (16) features one tooth with circumference shape (3) in face section shifted relative to axis (OO1) of gear (16). The curved spiral tooth of gear (16) is formed by consecutive shift of circumference (3) along axis (OO1) and continuous rotation of the said circumference about the axis. Larger gear (17) feature spiral teeth are formed by turning the cycloid curve (5) to match the spiral surface of gear (16). The engagement features a continuous line of contact along the tooth entire length wherein the circular cog and cycloid get engaged in every section with minimum friction losses. For axial loads to be eliminated, gears (16, 17) are made herringbone.

EFFECT: higher-strength engagement, higher gear ratio with smaller sizes.

12 cl, 15 dwg