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4. 发明公开

EP0697533A1 Compact bearing and stiffened journal 失效
标题翻译： Kompaktlager undverstärktesAchslager
公开(公告)号：EP0697533A1
公开(公告)日：1996-02-21
申请号：EP95630096.6
申请日：1995-08-17
申请人： THE TIMKEN COMPANY
发明人： Davidson, Rickie L. , Williams, Samuel R.
IPC分类号： F16C19/38 , F16C35/06 , F16C33/76
CPC分类号： F16C19/386 , B61F15/12 , F16C33/7813 , F16C33/7826 , F16C35/063 , F16C2326/10 , F16C2361/31
摘要： The antifriction bearing (B) fits around a journal (6) at the end of an axle (A) for a rail car. The journal (6) extends from an intervening section (4) of the axle (A), and the intervening section (4) in turn projects from a still larger main section (2), there being fillets (8, 10) where the sections merge. A backing ring (20) fits against the fillet (10) at the end of the journal (6), while an end cap (24) fits over the opposite end of the journal (6). The bearing (B) includes two cones (32) which are clamped between the end cap (24) and backing ring (20), a double cup (30) surrounding the cones (32), and tapered rollers (34) arranged in two rows between raceways (46, 42) on the cones (32) and on the cup (30). The ends of the bearing (B) are closed by seals (36) which are fitted to the cup (30) and cone (32). The thicker intervening section (4) of the axle (A) is extended in comparison to its counterparts on traditional axles, and the backing ring (20) extends axially along the journal (2) generally no further than the location at which the fillet (10) emerges from the main body of the journal (6). This presents the back face (54) of the inboard cone (32) in a region where the journal (6) is quite stiff, thereby reducing flexing and fretting considerably. The inboard cone (32) is undercut at its back face (54) so that the stress concentration produced at the end of the interference fit between the inboard cone (32) and the journal (6) does not coincide with the stress concentration that develops at the fillet (10) around which the backing ring (20) fits.
摘要翻译：紧凑的减摩轴承围绕轨道车轴的端部安装在轴颈周围。该期刊从轴的中间部分延伸出来，中间部分又从较大的主要部分投影，在这些部分合并的圆角上。背面环与日志末尾的圆角相匹配，而端盖适合日志的另一端。轴承包括夹在端盖和背衬环之间的两个锥体，围绕锥体的双杯，以及在锥体上和杯之间的滚道之间布置成两排的圆锥滚子。轴承的端部由安装在杯子和锥体上的密封件封闭。轴的较厚的中间部分与传统轴的对应部分相比延伸，并且支承环沿着轴颈轴向延伸，通常不超过圆角从轴颈的主体出来的位置。这表示在轴颈相当刚度的区域内的内侧锥体的背面，从而显着地减少了弯曲和微动。内侧锥体在其背面处被底切，使得在过盈配合结束时产生的应力集中不与衬垫环周围的圆角处产生的应力集中不一致。

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