Railway vehicle chassis with large-section draft bolster buffer structure

Abstract

The invention discloses a railway vehicle chassis with a large-section draft, bolster and buffer structure. The railway vehicle chassis comprises a draft bolster buffer, a front end beam, a left side beam, a right side beam and a floor, the draft bolster buffer comprises a small draft sill, a buffer beam, a large draft sill and a bolster, the floor comprises an in-pillow floor, an out-pillow left floor, an out-pillow right floor, an end floor, a middle cover plate and a floor transition sectional material, the front end beam is connected with the left side beam, the right side beam and the small draft sill, the end floor is erected on the left side beam and the right side beam, the middle cover plate is erected on the large draft sill, the out-pillow left floor is erected on the large draft sill and the left side beam, the out-pillow right floor is erected on the large draft sill and the right side beam, the floor transition sectional material is erected on the bolster, the in-pillow floor is connected to the floor transition sectional material in an inserted mode, the in-pillow floor is erected on the left side beam and the right side beam, and the upper surfaces of the buffer beam, the large draft sill and the bolster are flush with the upper surface of the floor. The structural strength is improved.

Description

technical field [0001] The invention relates to the technical field of rail vehicle structures, in particular to a rail vehicle underframe with a large-section traction pillow structure. Background technique [0002] The subway is a fast, large-capacity, electric traction rail transit built in the city, which belongs to the type of urban rail transit. [0003] Trains run on fully enclosed lines. Under normal circumstances, the lines located in the central urban area are basically located in underground tunnels, and the lines outside the central urban area are generally located on viaducts or on the ground. The subway covers various underground and above-ground areas in urban areas. A high-density, high-capacity urban rail transit system with exclusive right-of-way. [0004] At present, some subway vehicles in operation have cracks at the lower cover plate of the undercarriage and pillow area, and the vehicles with cracks in the area of ​​the pillow area mainly appear on the...

AI Technical Summary

Problems solved by technology

It should also be pointed out that the size of the rear pillow block will directly affect the size of the steel structure of the car body, and even affect the quality of the whole vehicle.

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