| 摘要 |
<p>1467396 Universal joints LOHR & BROMKAMP GmbH 26 March 1974 [26 March 1973] 13434/74 Heading F2U In a constant velocity-ratio universal joint wherein balls 18 engage in axially-parallel grooves 22 and 20 in the outer 14 and inner 12 members of the joint, the balls are retained in windows of a cage 16 having an inner partspherical surface 34 engaging an outer partspherical surface 26 of inner member 12 and an outer part-spherical surface (14) 40 engaging an inner part-spherical surface 36 of the outer member 14, the part-spherical surface 26, 34 having a centre 28 spaced from a plane 32 which contains the centres of the balls 18, and the surfaces 36, 40 having a centre 38 on the opposite side of plane 32, spaced therefrom by the same distance as centre 28, and the sides, towards the thinner end of cage 16, of the windows containing the balls 18 have lugs 46 positioned and dimensioned so as to permit assembly of the cage in the outer member 14 by inserting the cage sideways and rotating it 90 degrees about an axis 50 after rotation of the cage about its own axis to allow the lugs 46 to enter grooves in the rotation about axis 50. The lugs 46 shown extend radially outwards, but they may alternatively extend radially inwards (Fig. 7, not shown), in which case the inner member 12 is assembled in the cage in a manner analoguous to the above. The lugs 46 provide a larger abutment for the balls than the cage 16 would otherwise provide at its thinner side.</p> |
