The invention discloses a hub bearing unit and relates to the field of hub bearings. The hub bearing unit mainly comprises a bearing inner race, a hub outer race, a flange plate and a driving shaft. The bearing inner race is mounted on the flange plate in an embedded mode. Double rows of rollway nests are formed in the flange plate and used for mounting bearing rollers correspondingly. The drivingshaft is connected and sealed to the inner side of the flange plate through an elastic seal ring. The tail end of the driving shaft is sleeved with a starlike sleeve provided with a ball path. A universal joint roller ball path is formed in the flange plate and matched with the ball path in the starlike sleeve to form a rollway nest used for mounting a universal joint roller. A universal joint retainer is arranged outside the universal joint roller in a covering mode and fixes the universal joint roller. According to the hub bearing unit provided by the invention, by machining the universal joint roller ball path in the flange plate, a bell-shaped shell structure is integrated into the flange plate, and the hub bearing unit has the advantages of small axial size, small part quantity, highfunction integration level, low weight and easy and reasonable mounting; a constant velocity universal joint structure in the hub bearing unit is partially arranged outside, so that the structure ismore compact; and the driving stiffness is higher.
本发明公开了一种轮毂轴承单元,涉及轮毂轴承的领域,主要包括轴承内圈、轮毂外圈、法兰盘和驱动轴;轴承内圈嵌入安装在法兰盘上,法兰盘上设置双列滚道,用于安装轴承滚动体;驱动轴通过弹性密封圈与法兰盘内侧连接密封,带有球道的星形套套装在驱动轴的末端;法兰盘内部开设万向节滚动体球道,与星形套内的球道配合形成用于安装万向节滚动体的滚道,万向节保持架罩设在万向节滚动体外将其固定。本发明通过在法兰盘中加工万向节滚动体球道,将钟形壳结构集成于法兰盘中,具有轴向尺寸小,零部件数量少,功能集成度高,重量较小,安装简易合理的优点;将轮毂轴承单元中等速万向节结构部分置于外侧,使结构更加紧凑;驱动的刚度更高。
Hub bearing unit
一种轮毂轴承单元
2020-05-08
Patent
Elektronische Ressource
Chinesisch