The invention relates to the technical field of vehicle charging, in particular to a dynamic seal assembly and a hub bearing. The dynamic sealing assembly comprises a first sealing unit and a second sealing unit. The first sealing unit comprises an inner framework part, a first sealing ring, a first sealing lip, a second sealing lip and a third sealing lip, and the inner framework part is embedded in the first sealing ring. The third sealing lip, the first sealing lip and the second sealing lip are integrally formed with the first sealing ring, the sealing effect is weakened in sequence, and an ordered abutting force gradient can be formed. The second sealing unit comprises an outer framework part and a second sealing ring. When the movable sealing assembly is in the assembled state, the first sealing ring abuts against the outer framework part. The hub bearing comprises a dynamic sealing assembly, an inner ring assembly, an outer ring assembly and a rolling assembly. The second sealing unit in the dynamic sealing assembly can rotate along with rotation of the inner ring unit, and therefore the dynamic sealing effect is achieved. In this way, the problems that a dynamic sealing assembly is prone to sealing failure and poor in abrasion resistance are solved.
本发明涉及车辆充电技术领域,具体而言,涉及一种动密封组件及轮毂轴承。动密封组件包括第一密封单元和第二密封单元。第一密封单元包括内骨架部、第一密封圈、第一密封唇、第二密封唇和第三密封唇,内骨架部嵌设在第一密封圈内。第三密封唇、第一密封唇和第二密封唇分别与第一密封圈一体成形,并且密封效果依次减弱,能够形成有序的抵紧力梯度。第二密封单元包括外骨架部和第二密封圈。动密封组件在装配完成的状态下,第一密封圈与外骨架部抵接。轮毂轴承包括动密封组件、内圈组件、外圈组件和滚动组件。动密封组件中的第二密封单元可以随内圈单元的旋转而旋转,从而实现动态密封效果。这样就解决了动密封组件存在密封易失效、抗磨损差的问题。
Dynamic seal assembly and hub bearing
一种动密封组件及轮毂轴承
2024-12-31
Patent
Electronic Resource
Chinese