The invention relates to the technical field of railway vehicles, in particular to a middle underframe structure, a vehicle body underframe and a railway vehicle. The middle underframe structure is connected between a front-end underframe and a rear-end underframe through a pair of side beams, the middle underframe structure comprises a first door area and a second door area which are connected through a pair of side beams, the pair of side beams are disconnected in the first door area and the second door area respectively to reserve a door area space, and a boarding step reinforcing structureis installed in the door area space; the first door area is connected with the front-end underframe and provided with a door area reinforcing structure, and the second door area is connected with therear-end underframe and provided with a power pack hanging structure. According to the middle underframe structure, the first door area and the second door area can be reinforced through the door area reinforcing structure and the power pack hanging structure correspondingly and are matched with the boarding step reinforcing structure installed in the door area space, and therefore the bearing capacity and the structural strength of the first door area and the second door area are effectively enhanced; therefore, potential safety hazards of passengers getting on and off the vehicle are effectively reduced or even eliminated.
本发明涉及轨道车辆技术领域,尤其涉及中部底架结构、车体底架及轨道车辆。该中部底架结构通过一对边梁连接于前端底架和后端底架之间,该中部底架结构包括通过一对边梁相连的第一门区和第二门区,一对边梁分别在第一门区和第二门区断开以预留出门区空间,门区空间内安装有登车台阶补强结构;第一门区与前端底架连接并安装有门区补强结构,第二门区与后端底架连接并安装有动力包吊挂结构。本发明所述的中部底架结构能够在第一门区和第二门区分别通过门区补强结构和动力包吊挂结构进行补强,并与门区空间内安装的登车台阶补强结构相配合,从而有效加强第一门区和第二门区的承载能力和结构强度,从而有效降低甚至消除乘客上下车的安全隐患。
Middle underframe structure, vehicle body underframe and railway vehicle
中部底架结构、车体底架及轨道车辆
2020-12-04
Patent
Elektronische Ressource
Chinesisch
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 |
RAILWAY VEHICLE SLEEPER BEAM, UNDERFRAME AND UNDERFRAME WELDING METHOD
Europäisches Patentamt | 2021
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