The invention relates to a coupling differential device, in particular to a transverse coupling differential device for a rail vehicle, and belongs to the technical field of rail transit. According to the differential device, output is designed to be output on the same side according to the structural characteristics of the low-floor tramcar, so that the transverse coupling differential device can be arranged on one side of the tramcar, the situation that the structure is arranged in the middle of the tramcar is avoided, the middle space of a bogie is saved, and 100% low floor of the vehicle floor is achieved. The independent wheel pair obtains semi-rigid coupling performance, that is, the straight track has snakelike motion similar to that of a rigid wheel pair, the center of the independent wheel pair can dynamically return to the center of the track to prevent the rim of the wheel from running in an attached mode for a long time, and meanwhile when the curve is too small and the travel difference of the wheel is large, the transverse coupling differential mechanism is forced to generate differential speed; the inner wheel and the outer wheel generate a rotating speed difference and smoothly pass through a small curve in a pure rolling mode, and the problem of recoupling after independent wheels are decoupled is solved.
本发明涉及一种耦合差速装置,尤其涉及一种轨道车辆用横向耦合差速装置,属于轨道交通技术领域。本发明的差速装置根据低地板有轨电车的结构特点,将输出设计为同侧输出,使横向耦合差速装置可以布置在车辆一侧,避免将结构布置在车辆中间,节省了转向架中部空间,实现车辆地板面100%低地板。使独立轮对获得半刚性耦合性能,即平直轨道上具有近似刚性轮对的蛇形运动,独立轮对中心可动态回复轨道中心,防止车轮轮缘长期贴靠运行,同时,过小曲线时当车轮行程差较大时,横向耦合差速器受迫产生差速,使内外侧车轮产生转速差,以纯滚动的方式顺利通过小曲线,解决了独立轮解耦后的再耦合的难题。
Transverse coupling differential device for railway vehicle
一种轨道车辆用横向耦合差速装置
2023-03-07
Patent
Electronic Resource
Chinese
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