Underframe structure of a rail vehicle body

Abstract

The invention discloses a railway vehicle body chassis structure. The railway vehicle body chassis structure soles the problems that the giant torque force is caused due to the fact that a front-arrangement type vehicle hook mounting hole is formed in the side face of a vertical plate of a traction beam, and no operation space exists for mounting a steering frame traction base. The railway vehicle body chassis structure comprises two chassis edge beams, a chassis end beam and a sleeper beam arranged between the two chassis edge beams, a traction beam, a vehicle hook mounting sectional material and a traction guide beam are arranged between the sleeper beam and the chassis end beam, the traction beam is fixed between the sleeper beam and the vehicle hook mounting sectional material, and the traction guide beam is fixed between the vehicle hook mounting sectional material and the chassis end beam. Traction wing plates are fixedly arranged on the two sides of the vehicle hook mounting sectional material, the traction wing plates are fixedly connected with the chassis edge beams on the corresponding sides, and a jumper box is arranged between the traction wing plates and the traction guide beam. The problems are completely solved by optimizing the structures of vehicle hook mounting sectional material, the traction beam and other components, and the high-intensity performance that a vehicle body can bear 1000 kN of compression loads is kept.

Description

technical field [0001] The invention belongs to the car body structure of a rail transit vehicle, in particular to a car body underframe structure of a rail vehicle, and is especially suitable for a high-strength subway vehicle equipped with a front coupler. Background technique [0002] At present, the traction beam of high-strength subway aluminum alloy car body that can meet the compressive load of 1000kN usually adopts a double-layer vertical plate structure, and the coupler mounting hole is located in the middle of the two vertical plates. However, after the front coupler is adopted, the distance between the coupler mounting holes is narrowed and the vertical plate of the traction beam is required to move accordingly, causing the bogie mounting hole at the bolster to enter the closed area between the vertical plates of the traction beam. There is no room for operation when connecting the bolts of the car body; the distance between the traction guide beam and the coupler...

AI Technical Summary

Problems solved by technology

However, after the front coupler is adopted, the distance between the coupler mounting holes is narrowed and the vertical plate of the traction beam is required to move accordingly, causing the bogie mounting hole at the bolster to enter the closed area between the vertical plates of the traction beam. There is no room for operation when connecting the bolts of the car body; the distance between the traction guide beam and the coupler installation hole becomes larger, and the supporting effect is weakened; The car seat is set on the board, which interferes with the original jumper box at this position

[0003] Due to the above factors, the existing underframe end structure can no longer meet the relevant technical requirements

Images