Four-joint wagon and connecting method thereof

Abstract

The invention discloses a four-joint wagon. The four-joint wagon comprises a first wagon, a second wagon, a third wagon and a fourth wagon which are sequentially connected in series. Each of the firstwagon, the second wagon, the third wagon and the fourth wagon is supported by disc cores of two two-axis bogies, wherein lower core discs of the two two-axis bogies are matched with upper core discsof the wagons. Bodies of the first wagon, the second wagon, the third wagon and the fourth wagon only can rotate and cannot move transversely and longitudinally. The second wagon and the fourth wagonare main wagons, the first wagon and the third wagon are auxiliary wagons, and the two-axis bogies, close to the main wagon ends, of the auxiliary wagons can move transversely relative to the wagon bodies. The first wagon, the second wagon, the third wagon and the fourth wagon are hinged through hinges. The invention further relates to a connecting method of the four-joint wagon, the problems thatthe bogies are placed between the wagons in a joint wagon in the prior art, the finished wagon axle number is reduced, the baggage is increased, the wagon load is also limited, and the current transport capacity requirement is hard to met are solved.

Description

technical field [0001] The invention belongs to the technical field of railway vehicles, and in particular relates to a four-section railway freight car, and also relates to a connection method of the railway freight car. Background technique [0002] Railway wagons are an important means of transportation in railway transportation. The traditional transportation method is that each wagon is connected in series with a coupler or a coupler buffer device to form a wagon intermodal transport body. For loading some bulk fixed goods, it is necessary to place a bogie at the joint of the truck compartment to ensure that it can drive through the curve smoothly. At the same time, foreign countries often adopt the connection method of multi-joint articulated vehicles. However, due to the placement of bogies between the trucks, this method reduces the number of axles of the vehicle, increases the weight of the vehicle, and limits the load of the vehicle. It is difficult to meet the cur...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a four-section railway freight car, which solves the problem of placing a bogie between the freight cars in the articulated car in the prior art, which reduces the number of axles of the whole vehicle, increases the weight of the train, and is difficult to adapt to the limitation of the load of the vehicle. Problems with today's capacity needs

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