The invention discloses a hinged device sealing structure and a hinged dumper. The hinged device sealing structure comprises a hinged body, a tubular shaft, a bearing, a thrust ring, an O-shaped ring and a sealing ring. The pipe shaft extends from the hinging body; the bearings are arranged in a seat cylinder of the rear trailer, the bearings are respectively arranged in front of and behind the seat cylinder, and the tubular shaft is inserted into the bearings and can rotate relative to the bearings; the thrust ring is connected with the tail end of the tubular shaft and can rotate relative to the bearing; the O-shaped ring is arranged on a groove formed by fitting the hinge body and the end face of the bearing and a groove formed by fitting the thrust ring and the end face of the bearing; the O-shaped ring is sleeved with the sealing ring, one end of the sealing ring is fixed to the outer diameter of the hinge body or the thrust ring, and the other end of the sealing ring is tightly attached to the outer diameter of the bearing end face and can rotate relative to the bearing. According to the hinge device, the requirements of sealing of the hinge device for mounting size precision such as aperture, coaxiality and roughness are low, mounting is easy and convenient, the cost is low, the hinge device can adapt to severe working conditions, external pollutants are prevented from invading, the influence of mounting size errors on the sealing performance is small, and the sealing performance is good and stable.
本发明公开了一种铰接装置密封结构及铰接式自卸车,包括铰接体、管轴、轴承、止推环、O形圈、密封圈;管轴延伸自铰接体;轴承装在后拖车的座筒内,在座筒前、后各设有一个轴承,管轴插入轴承,与轴承可相对转动;止推环与管轴末端相连,与轴承可相对转动;O形圈装在铰接体与轴承端面贴合形成的沟槽上以及止推环与轴承端面贴合形成的沟槽上;密封圈套在O形圈外侧,一端固定在铰接体或止推环外径上,另一端紧贴轴承端面外径上,可相对轴承转动。本发明能够使铰接装置密封对孔径、同轴度、粗糙度等安装尺寸精度要求低,安装简易方便且成本低廉,能够适应恶劣的工况环境,防止外部污染物侵入,密封性受安装尺寸误差影响小,密封性能好且稳定。
Hinge device sealing structure and hinged dumper
一种铰接装置密封结构及铰接式自卸车
2023-06-09
Patent
Electronic Resource
Chinese
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