| 摘要 |
<p>1474156 Shaft couplings CATERPILLAR TRACTOR CO 26 Nov 1975 [9 April 1975] 48564/75 Headng F2U The coupling 18 between a drive shaft 16 and the driven gears 19, 13 and sprocket 14 of, for example, a track-laying vehicle is disengaged by moving the shaft axially when the vehicle is to be towed, the shaft being maintained in the disengaged position by means of a lock-out device, Figs. 1 and 4, comprising a first part 22 on the shaft engageable with a second part 23 carried by a releasable cover plate 25 on the housing. As shown, the coupling 18 is formed of splines on a hydrostatic motor shaft 16 engaging splines in a driven shaft 17 carrying gear teeth 19 which mesh with teeth on a gear 13 rotatable with the final drive sprocket 14 for the track assembly 15. To disengage the drive, the cover plate 25 carrying the locking part 23 is removed and the shaft 16 shifted to the right so that the locking part 22 on the shaft can be engaged by the locking part 23 when the cover is replaced. In Fig. 5 the locking part 23a has a helical recess which shifts the shaft 16 to the right upon rotation of the cover plate 25a.</p> |
