Railway vehicle collision pillar and vehicle head structure with same

Abstract

The invention discloses a railway vehicle collision pillar. The collision pillar comprises an upper segment, a middle segment and a lower segment welded in order, three sections are hollow steel; a non-mounting surface of the upper section is a slope, the middle section is formed by butt-welding two U-shaped plates, and the bottom side of one U-shaped plate is an obtuse angle bending plate; the lower section is formed by splicing four peripheral steel plates; one bending plate is engaged with the middle section U-shaped bending plate; stiffener boards are arranged on inner sides of the upper section and the middle section, a layer of vertical stiffener board is at least arranged at the internal of the lower section, a long round hole is formed in a connecting region of the upper part of the lower section and the middle section, the lower section is inserted into the middle section to fixedly weld with the middle section at the long round hole. The rigidity requirement, the space requirement, the mass requirement, the function requirement, and the manufacturability requirement of the vehicle entire design can be met, the reinforcement of the collision pillar is realized through theminimum mass introduction, the security is realized, and the damage on other components by the collision is reduced.

Description

technical field [0001] The invention belongs to the field of railway transportation, and in particular relates to a head collision column structure for subway vehicles. Background technique [0002] With the development of society, subway vehicles are becoming more and more popular in densely populated cities, and everyone has higher and higher requirements for the safety of subway vehicles. The European standard EN 15227 stipulates that the front end of the rail vehicle body should have structural passive safety, that is, it is necessary to set an energy absorption area within a certain range of the front end of the car body. North American Railroad Association standard AAR S-580 stipulates that two collision posts and two corner posts must be arranged at the front of the driver's cab, and both the collision posts and the corner posts must have sufficient strength to resist collision damage. The front end design of the existing rail vehicle generally combines the above two...

AI Technical Summary

Problems solved by technology

However, the position, angle and force of the actual collision vary greatly, and the collision column may not buckle in time as designed.

To sum up, the existing rail vehicle collision column and head structure are difficult to meet the design requirements of high strength, compact structure, high space utilization, safety and effectiveness, etc.

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