The invention provides a sealing structure suitable for a grounding shaft end of a railway vehicle. The sealing structure comprises a contact type sealing structure and a non-contact type sealing structure. The contact type sealing structure is arranged between the axle box body and the rear cover and between the axle box body and the end cover and used for sealing the two ends of the axle box body in the axial direction and the radial direction. The non-contact sealing structure comprises a first sealing labyrinth and a second sealing labyrinth; the first sealing labyrinth is positioned between the end cover and the gland; and the second sealing labyrinth is positioned between the rear cover and the dustproof ring. Four contact seals and two groups of labyrinth seals are arranged in a limited space of the axle box body, so that a more ideal sealing effect is realized, carbon powder of a grounding device and water and dust outside the axle box body can be effectively prevented from invading a bearing, the service life of the bearing is prolonged, and the running safety of a vehicle is improved.
本发明提供一种适用于轨道车辆接地轴端密封结构,所述密封结构包括接触式密封结构和非接触式密封结构;所述接触式密封结构设置于轴箱体与所述后盖和所述端盖之间,对所述轴箱体两端的轴向和径向进行密封;所述非接触式密封结构包括第一密封迷宫和第二密封迷宫;所述第一密封迷宫处于所述端盖和所述压盖之间;所述第二密封迷宫处于后盖与防尘圈之间。本发明在轴箱体有限的空间内,设置了4道接触式密封、2组迷宫密封,实现了更为理想的密封效果,能够有效防止接地装置的碳粉和轴箱外部水尘侵入轴承,延长了轴承的使用寿命,提高车辆运行的安全性。
Grounding shaft end sealing structure suitable for railway vehicle
一种适用于轨道车辆接地轴端密封结构
2024-01-09
Patent
Elektronische Ressource
Chinesisch
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