| 摘要 |
<p>1312720 Differential gearing EATON AXLES Ltd 7 July 1970 [11 July 1969] 32996/70 Addition to 1209793 Heading F2D In the limited-slip bevel gear differential of the Parent Specification 1,209,793 (Fig. 1) in which a multi-plate friction coupling 70 and a selectively operable positive clutch 80, 82 are arranged in series between the driving bevel planet carrier 52 and a side wheel 54, the coupling friction plates 72, 74 being alternatively carried by the carrier 52 and by a sleeve 88 which is splined to an axially slidable clutch sleeve 86 formed with positive facial clutch teeth 82, and in which a lubricant pick-up surface 122 (Fig. 1) or 156 (Fig. 2) is provided on the planet carrier and is partially immersed in a reservoir 120, lubricant being removed from the surface by a pliable non-abrasive scraper 126 (Fig. 1) or 158 (Fig. 2) supplying the lubricant via a port 130 to a chamber 132 whence lubricant is supplied to the differential gearing via a port 136 and passage 138 and thence, in Fig. 1, to the outer edge of the coupling discs to lubricate and cool them via chamber 148 and passages 150, the outwardly directed passages 150 (Fig. 1) are replaced by inwardly directed ports 152 (Fig. 2) whereby the lubricant is discharged at the radially inner circumferential edge of the coupling pack 70 and is centrifuged radially outward whereby the coupling friction discs are bathed in lubricant over their entire surfaces, the lubricant exhausting from the chamber 44, via radial ports 154, back to the reservoir 120. Additionally, the lubricant from the ports 152 lubricates the teeth 89, 90 of the sliding splined clutch sleeve 86.</p> |
