An articulated aluminum alloy EMU body chassis end structure

Abstract

An articulated aluminum alloy EMU car body bottom frame end structure, comprising a car end connection area and a passenger compartment passage area arranged in the longitudinal direction, the car end connection area and the passenger compartment passage area are composed of an articulated seat, two traction beams, The "mesh"-shaped overall frame structure composed of two bolster beams, two side beams and partition walls; the hinge seat is located in the middle of the car end connection area, the upper surface of the traction beam, the upper surface of the bolster beam and the The upper surface of the side beam is flush; the partition wall is arranged in parallel with the two sleeper beams and is connected with the other end of the traction beam and the side beam; the lower part of the two traction beams and the two sleeper beams is provided with a hinged support for supporting the fixed hinge seat Structure; a side floor is arranged above the frame structure between the two traction beams and the side beams; the upper surface of the passenger compartment passage area is slightly lower than the upper surface of the end connection area, and the lower surface of the traction beam is connected to the middle floor of the hinged support structure , the upper surface of the traction beam is connected with the side floors on both sides, forming a concave structure in the cross-sectional direction of the vehicle body.

Description

technical field [0001] The invention relates to a rail vehicle body structure, in particular to an end structure of an articulated EMU body chassis. Background technique [0002] At present, coupler buffer devices are generally used for the connection between domestic EMU vehicles. However, in many countries with small land areas, the speed requirements for EMUs are not too high, and the focus is on running on lines with a small turning radius. Therefore, some foreign vehicle operators specify that EMUs need to use articulated bogies. [0003] The most successful case of using articulated bogies abroad is the French TGV and AGV high-speed trains. The bogies are 2-point suspension articulated without bolsters. The vehicle is characterized by a high floor height. However, some vehicle operators, considering the convenience of getting on and off the vehicle, require the vehicle to be equipped with a middle passage, which is relatively low in height, which can only be solved by...

AI Technical Summary

Problems solved by technology

But at the same time, the traditional car body underframe structure cannot meet the installation and connection of this new type of bogie, so it is urgent to develop a new car body underframe end structure

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