The invention discloses a railway vehicle, a bogie and an axle box suspension device of the bogie, the axle box suspension device comprises two axle box springs vertically arranged beside an axle box, a wedge is arranged between each axle box spring and a guide frame on the corresponding side, and each wedge is in friction fit with the side face of the axle box on the corresponding side; the axle box suspension device also comprises an ejection elastic part corresponding to each wedge. Each ejection elastic part is arranged between each wedge and each guide frame in a pre-deformation manner and configured to be in such a manner that each deformed ejection elastic part forms acting force upon each wedge to push each wedge to displace towards the side face of the axle box on the corresponding side. According to the scheme, the straight ejection spring arranged between each wedge and each guide frame is pre-compressed and participates in construction of positive pressure matching friction between the wedge and the axle box, the longitudinal positioning rigidity can be effectively improved, the dynamic performance of the vehicle is ensured, and the possibility that abrasion influences the performance of the vehicle can be completely avoided.
本发明公开一种轨道车辆、转向架及其轴箱悬挂装置,该轴箱悬挂装置包括垂向设置在轴箱旁侧的两个轴箱弹簧,每个所述轴箱弹簧与相应侧的导框间均设置有斜楔,每个所述斜楔与相应侧的轴箱侧面摩擦适配;还包括与所述斜楔相应配置的直顶弹性件,该直顶弹性件预形变设置在所述斜楔与导框之间,并配置为:形变后的所述直顶弹性件可形成施加于所述斜楔的作用力,以推动所述斜楔产生朝向相应侧所述轴箱侧面位移的趋势。应用本方案,预压缩设置在斜楔与导框之间直顶弹簧,参与构建斜楔与轴箱间摩擦适配的正压力,可有效提高纵向定位刚度,确保车辆动力学性能,并可完全规避磨耗影响车辆性能的可能性。
Railway vehicle, bogie and axle box suspension device of bogie
轨道车辆、转向架及其轴箱悬挂装置
2021-05-28
Patent
Electronic Resource
Chinese
IPC: | B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES |
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