联轴器、轴端发电装置及铁路车辆

本发明涉及一种联轴器、轴端发电装置及铁路车辆。联轴器包括连接组件及安装座。连接组件均包括止动件及弹性件，弹性件的一端连接安装座，另一端连接止动件，止动件用于与电机轴外周面的键槽配合使电机轴能随车轴转动。当键槽与止动件有夹角时，电机轴迫使止动件压缩弹性件，车轴仍能带动电机轴转动，实现列车在过曲线及电机轴与车轴不同轴时，发电机能正常工作。当电机轴出现故障或卡止时，电机轴迫使止动件压缩弹性件，使弹性件带动止动件向远离电机轴的方向退让，直至止动件脱离键槽，这样联轴器能随车轴绕电机轴的轴线转动，如此联轴器在电机轴出现故障或卡止时能够释放车轴传递给电机轴的旋转力矩，保护发电机，延长发电机的使用寿命。 The invention relates to a coupler, a shaft end power generation device and a railway vehicle. The coupler comprises a connecting assembly and a mounting base. Each connecting assembly comprises a retainer and an elastic part, one end of each elastic part is connected with the mounting base, the other end of each elastic part is connected with the retainer, and the retainers are used for being matched with key grooves in the peripheral face of the motor shaft so that the motor shaft can rotate along with the axle. When an included angle is formed between the key groove and the retainer, the motor shaft forces the retainer to compress the elastic piece, and the axle can still drive the motor shaft to rotate, so that t