| 摘要 |
Disclosed are a railway vehicle and a head vehicle barrier-removing device thereof. The head vehicle barrier-removing device comprises a flow guide plate (1), a front end framework (2) mounted at the front end of the inner side surface of the flow guide plate (1), and longitudinal beams (3) mounted on two sides of the inner side surface of the flow guide plate (1). The two ends of the front end framework (2) are connected to the longitudinal beams (3) on the two sides respectively. The rigidity of connecting positions (4) between the longitudinal beams (3) and the front end framework (2) is smaller than that of any position of the longitudinal beams (3) and the front end framework (2). When barriers are cleaned or train collision occurs, if the impact force exerted on the barrier-removing device exceeds the maximum load value that the barrier-removing device can bear, large extruding deformation is produced at the connecting positions (4) between the front end framework (2) and the longitudinal beams (3), so that the front end of the flow guide plate gradually retracts backwards, space is released for an energy absorption part that is mounted at the front end of a head vehicle, and therefore the energy absorption part is ensured to effectively absorb the impact energy, the passive safety of the vehicle is improved, and severe safety accidents such as vehicle climbing or derailing can be avoided. |
