Vehicle body structure and railway vehicle

Abstract

The invention discloses a vehicle body structure. The structure comprises a chassis edge beam, a side wall plate, a door upright post, a vehicle roof edge beam and a vehicle roof, and is characterized in that the vehicle roof edge beam comprises a vehicle roof lower edge beam and a vehicle roof upper edge beam which are connected with each other, and the lower edge beam is of a full-length structure; the vehicle roof upper edge beam comprises a first upper edge beam and / or a second upper edge beam; and the first upper edge beam is used for installing a low-arc roof, the second upper edge beam is provided with a first connector at the top end and a second connector on the inner side, the first connector is used for installing a high-arc roof, and the second connector is used for installing a flat roof. The vehicle body structure can adapt to installation of uniform-section full-length low-arc top structures and non-uniform-section high-low top structures, only local vehicle roof upper edge beam modules need to be replaced, the modularization degree is high, universality is high, and the installation requirements of various roof devices can be met.

Description

technical field [0001] The invention relates to a car body structure and a rail vehicle, belonging to the technical field of rail vehicle bodies. Background technique [0002] Compared with railway EMUs, subway trains face harsher operating conditions: the passenger compartment has a large standing area and carries more passengers; the train starts frequently, and the number of passenger compartment doors seriously weakens the overall rigidity of the vehicle. The car body is a key load-bearing component of a rail vehicle. The safety and light weight of its structure are the core elements that reflect the advanced nature of the vehicle. However, the light weight of the structure often leads to a decrease in the strength and safety margin, and its mutual constraints are also faced by the industry. problem. [0003] The weights of traditional A and B aluminum alloy subway car bodies have reached more than 8t and 7t respectively. Under the requirements of energy saving and emis...

AI Technical Summary

Problems solved by technology

Among them, the high and low roof car body structure makes full use of the limited space of the vehicle. The car body is properly sunk in the distribution part of the air conditioning unit, and a platform installation structure with a low height is set. Good performance and beautiful appearance; while the roof of the long low-arc roof body is generally slightly arc-shaped, which is convenient for drainage, simple in structure, low in manufacturing cost, convenient in installing equipment, and lighter in weight, but the rigidity of the car body is somewhat Reduced, the air-conditioning unit is exposed in the passenger's field of vision in a large area, the structural continuity is poor, and it is not beautiful enough, especially at the front of the car, it is usually necessary to install a shroud on the car to facilitate the continuous and smooth shape of the front of the car, and reduce the train running process. air resistance in

However, adding an excessively long windshield on the roof will increase the weight of the vehicle, and the windshield must be able to bear the weight of the maintenance personnel, requiring high strength and difficult weight control

For example, Patent Document 1 (application number CN201180067434) discloses a roof side beam, which has a high joint for connecting a high arc roof and a flat joint for connecting a flat roof, so that a high arc roof and a flat roof can be installed on a car body at the same time. The existing problem is that the high arc roof and the low arc roof cannot be installed on one car body at the same time.

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