POWER TRANSMISSION WITH UNIVERSAL JOINT OF CONSTANT VELOCITIES OF ROLLING FRICTION Russian patent published in 2001 - IPC

FIELD: transport engineering; power transmission for transfer of torque from power unit of transport facility to propelling device. SUBSTANCE: proposed transmission includes housing 1 with raceways 2 on inner cylindrical surface 3, shaft 4 located inside housing and provided with raceways 5 in its section 6. Balls 9 located in raceways 2 and 5 are received by ports 10 of cage 11 which is provided with spherical section 13 for contact with inner surface 3 of housing 1. Inner surface of cage 11 has spherical section 15 which is in contact with spherical surface 16 of control bush 17 fitted on shaft 4 for sliding over it. Control bush 17 has inner cavity 18 on side of balls 9. Diameter d₁ of side radial surface 19 of this cavity exceeds diameter d₂ of section 6 of shaft 4. Spherical surface 16 of bush 17 is made in such way plane α passing through center of spherical surface 16 of bush 17 is shifted towards balls 9 relative to plane β passing through center of section of surface 20 of bush 17 which is in contact with shaft 4. Shaft 4 has projection 23. EFFECT: improved characteristics of power transmission, viz. : increased number of working angles of universal joint at simultaneous increase of relative axial displacement of its housing and shaft. 3 cl, 3 dwg