The invention discloses a double-acting friction damper of a railway wagon bogie. The damper is used for being arranged between a side frame and a swing bolster and comprises an inclined wedge block.Containing cavities are arranged in the two ends of the inclined wedge block in a length direction, a first spring is arranged in each containing cavity, the top ends of the first springs are fixedlyconnected with the top ends of the containing cavities, and the bottom ends of the first springs extend downwards to penetrate out of the bottom ends of the containing cavities to be fixedly connectedwith the swing bolster. A second spring is arranged below the middle of the inclined wedge block, the top end of the second spring is fixedly connected with the bottom end of the middle of the inclined wedge block, and the bottom end of the second spring extends downwards to be fixedly connected with the side frame. The first spring is mounted on the swing bolster after being compressed, fixed and displaced so as to provide a fixed counter force for the inclined wedge block; and the second spring is installed in a spring bearing platform of the side frame, the second spring can generate dynamic displacement along with up-down vibration of the swing bolster in a vibration process, the variable counter force is provided for the inclined wedge block, a damping requirement of empty and loadedvehicles can be met, vibration reduction performance is stable, and diamond-resistant rigidity is large.
本发明公开了一种铁路货车转向架双作用摩擦减振器,用于设置在侧架与摇枕之间,包括斜楔块,斜楔块的长度方向两端设置有容纳腔,每个容纳腔内设置有第一弹簧,第一弹簧的顶端与容纳腔的顶端固定连接,第一弹簧的底端向下延伸穿出容纳腔的底端与摇枕固定连接;斜楔块的中部下方设置有第二弹簧,第二弹簧的顶端与斜楔块的中部底端固定连接,第二弹簧的底端向下延伸与侧架固定连接。本发明第一弹簧压缩固定位移后安装在摇枕上,给斜楔块提供固定的反力,第二弹簧安装在侧架的弹簧承台内,第二弹簧在振动过程中随着摇枕的上下振动会产生动态位移,给斜楔块提供变化的反力,能够兼顾空重车阻尼需要、减振性能稳定以及抗菱刚度大。
Double-acting friction damper of railway wagon bogie
铁路货车转向架双作用摩擦减振器
2020-08-14
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 |
Wedge friction damping device for railway wagon bogie, railway wagon bogie and railway wagon
European Patent Office | 2025
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