| 摘要 |
<p>901,854. Making universal Joints; welding by pressure. PITNER, A., and ROULEMENTS A AIGUILLES, S.A. DES. Oct. 12, 1960 [Oct. 15, 1959], No. 34910/60. Classes 83 (2) and 83 (4). [Also in Group XXIV] In a Hook's type universal joint accurate axial alignment of a spider 3 and yoke 4 is obtained during assembly by axially aligning the spider 3 and yoke 4 and sliding needle bearing cups 6 in bores 9 of the yokes until they abut the spider trunnions 7 whereafter retaining plates 10 are force-fitted into the bore and welded in position. As shown, the retaining plate 10 is we'ded in position by electric resistance welding, one electrode A being applied to the plate 10 while the other electrode B is applied to a machined surface on the yoke 4. In Figs. 7 and 8 (not shown) a semi-circular retaining plate is welded in position by applying one electrode to the straight edge of the retaining plate and the other electrode to the interior of the bore in the yoke, the electrodes forming a kind of plier, the branches of which spread apart when the weld is effected. In Figs. 9 and 10 ( not shown) a split ring retaining member is welded in position by applying a two-part electrode in the form of a plier within the ring to expand the latter into engagement with the bore in the yoke whilst the other electrode is applied to a machined surface of the yoke. A two-part retaining ring may be welded in position by applying an electrode to each part of the ring. In Fig. 11 (not shown), a dielectric is inserted between the bearing cup and the retaining plate to prevent the welding current passing through the former.</p> |
