Railway vehicle front-end energy absorbing device

Abstract

The invention relates to a railway vehicle front-end energy absorbing device which comprises an anti-creeping energy absorbing structure, a vehicle hook energy absorbing structure, a main energy absorbing structure and guiding structures. The vehicle hook energy absorbing structure is fixedly connected with the main energy absorbing structure through a vehicle hook base, the vehicle hook base is fixedly connected with the front end portion of the main energy absorbing structure, the main energy absorbing structure and the guiding structures are fixedly connected to a rigid wall at the front end of a vehicle body, the guiding structures are located on the two sides of the main energy absorbing structure and are in sliding connection with the main energy absorbing structure and the vehicle hook energy absorbing structure, and the anti-creeping energy absorbing structure is fixedly connected to a chassis at the front end of the vehicle body. According to the railway vehicle front-end energy absorbing device, the main energy absorbing structure, the vehicle hook energy absorbing structure and the anti-creeping energy absorbing structure are combined into a whole, and the energy absorbing amount of the vehicle body front-end energy absorbing device is greatly increased, so that the energy absorbing device can conduct deformation energy absorbing step by step and in order.

Description

technical field [0001] The invention relates to a front-end energy-absorbing device of a rail vehicle, in particular to a front-end energy-absorbing device which can improve energy absorption and is suitable for a large-slender-ratio, pointed-hook-shaped rail vehicle. Background technique [0002] With the continuous improvement of the running speed of rail vehicles, the aerodynamic resistance suffered by rail vehicles also increases greatly. In order to reduce aerodynamic resistance during operation and improve aerodynamic performance, high-speed trains adopt a streamlined head shape with a large slenderness ratio. For equipment such as opening and closing mechanisms, it is more difficult to install the collision energy-absorbing structure. [0003] At present, on high-speed trains, most energy-absorbing devices only use energy-absorbing couplers to absorb energy and use anti-climbers to prevent climbing, but this method is only suitable for trains with wide and flat heads...

AI Technical Summary

Problems solved by technology

Its overall structure is a flat structure, and the coupler and the anti-climbing energy-absorbing structure are connected into an integrated structure through the coupler box, but the process of deformation and energy absorption is only the coupler buffer energy absorption and anti-climbing pressure collapse energy absorption, the energy absorption is relatively small, and The coupler box is very rigid and not easily deformed. For high-speed trains, its energy absorption can easily fail to meet the requirements

Images