| 摘要 |
Shaft protective casing, in particular for a jointed shaft for agricultural machinery composed of telescopic pipes slipped on each other protecting a shaft and protecting joints of funnel casings and joining those parts of slide bearings with sliding surfaces situated in a groove of a knuckle or shaft, which has a form of a cut across circumference ring with grooves to make it more flexible which are situated along its axle, on one side enclosing the shaft's protective pipe with clamps, and their external surfaces are parts of external cylinder surface of the ring and their internal surfaces facing the pipe form part of the cylinder surface on which pins are located which penetrate holes of the wall of the protective pipe, characterized in that, the external cylinder surface of the slide bearing (6) is divided into segments (19) by grooves (18), and each of the segments has a radial hole (21), and the outlet of the hole (22) is placed between sliding surfaces (9) and a thrust recess (23) with a circumference resistance surface (24) and with axial counter-slide resistance surface (25), whereas the grooves, holes, circumference resistance surfaces and pins (15) are situated at equal angle distances and the funnel casing (4, 4a) has a cylindrical socket (29) with a diameter corresponding to an external diameter of an external cylindrical surface of the bearing, which has two toothed rings (30) and (31) on a concave surface which are distanced from each other by a distance on the bearing (6) along its axle between counter-slide resistance surface.<IMAGE>
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