The embodiment of the invention discloses an auxiliary wheel mounting structure and a monorail train, and the auxiliary wheel mounting structure comprises an auxiliary wheel, a bearing, a bearing end cover, an axle and a mounting bracket. Containing grooves are formed in the two ends of the auxiliary wheel in the axis direction, shaft holes allowing the axle to penetrate through are formed in the groove bottoms of the containing grooves, bearings and bearing end covers are installed in the containing grooves, and the axle is sleeved with the bearings and the bearing end covers. A step face is arranged on the groove wall of the containing groove, a shaft shoulder is arranged on the axle, and after the axle is sleeved with the bearing, the outer ring of the bearing abuts against the step face, the inner ring of the bearing abuts against the shaft shoulder, the outer ring of the bearing is in interference fit with the containing groove, and the inner ring of the bearing is in interference fit with the axle. In the embodiment, the outer ring of the bearing is in interference fit with the containing groove, and the inner ring of the bearing is in interference fit with the axle, so that the auxiliary wheel is connected with the axle, and compared with the mode that the whole axle is in transition fit with the bearing and the auxiliary wheel in the prior art, the connecting difficulty of the axle, the bearing and the auxiliary wheel is reduced.
本申请实施例公开了一种辅助轮安装结构及单轨列车,其中,辅助轮安装结构包括辅助轮、轴承、轴承端盖、车轴和安装支架。辅助轮的轴线方向的两端均设置有容置槽,容置槽的槽底开设用于供车轴穿过的轴孔,容置槽内安装轴承和轴承端盖,轴承和轴承端盖套设在车轴上。容置槽的槽壁设置有台阶面,车轴上设置有轴肩,在轴承套设在车轴上后,轴承的外圈与台阶面相抵,轴承的内圈与轴肩相抵,轴承的外圈与容置槽过盈配合,轴承的内圈与车轴过盈配合。该实施例中,通过轴承的外圈与容置槽过盈配合、以及轴承的内圈与车轴过盈配合,实现辅助轮与车轴的连接,相对于现有技术中整根车轴与轴承和辅助轮过渡配合的方式,降低了车轴与轴承和辅助轮的连接难度。
Auxiliary wheel mounting structure and monorail train
一种辅助轮安装结构及单轨列车
2023-03-14
Patent
Electronic Resource
Chinese
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