| 摘要 |
<p>AXLE CRADLE MOUNTING HAVING ELASTOMERIC SPHERICAL BUSHINGS Mounting means for a cradle assembly carrying the front axle of a vehicle. An articulated vehicle, having a front frame and a rear frame, includes a cradle assembly secured to the front frame for supporting the power-driven front axle of the vehicle. The mounting means for the cradle assembly comprises mounting blocks, coaxially aligned, provided at respective front and rear ends of the front frame. Provided at opposite ends of the cradle assembly are respective tapered mounting pins coaxially aligned. Mutually aligned spherical bushings carried on the outer ends of the mounting pins are received in the mounting blocks of the front frame. Each bushing comprises a cylindrical outer race having a spherical inner core which receives a spherical inner race therein. Bonded to the inner race of the bushing is an elastomeric material which is also bonded to the outer race of the bushing, the elastomeric material permitting oscillation of the inner race relative to the outer race, thus allowing four-wheel contact of the vehicle with the ground in the normal working mode. The elastomeric bearing also provides damping means for forces transmitted through each joint which produces a progressively higher resistance moment as cradle movement is increased. Further the elastomeric interface of the bearing seals the joint against contaminants.</p> |
