Bogie frame and bogie provided with bogie frame

Abstract

The invention discloses a bogie frame. The bogie frame comprises two side beams and a cross beam which is fixedly arranged between the two side beams. The cross beam and the side beams are box beams.The cross beam is in an H shape, and connecting parts at the two ends of the cross beam obliquely draw close to the transverse central line of the cross beam. An insertion port formed by an upper cover plate and a lower cover plate of each side beam is formed in the inner side of the side beam. An upper cover plate on each connecting part of the cross beam is in butt join with the portion, where the corresponding insertion port is formed, of the upper cover plate of the side beam on the corresponding side, and a lower cover plate on each connecting part of the cross beam is in butt joint withthe portion, where the corresponding insertion port is formed, of the lower cover plate of the side beam on the corresponding side. An outer vertical plate on each connecting part of the cross beam stretches out of the ends of the upper cover plate and the lower cover plate on the connecting part and is inserted into the corresponding side beam from the corresponding insertion port so as to be connected with the side beam. The bogie frame can be connected in a welded mode conveniently when assembled, the welded connection reliability and stability are high, and the areas on the inner sides ofthe side beams provide sufficient installation spaces for other components. The invention further discloses a bogie comprising the bogie frame.

Description

technical field [0001] The invention relates to the technical field of bogies, in particular to bogie frames. The invention also relates to a bogie provided with a bogie frame as described above. Background technique [0002] In rail vehicles, the bogie is an important part. The bogie is the direct bearer of vehicle traction, braking force, vehicle load and external force on the track, and plays a vital role in the running quality of the vehicle and the safety of passenger transportation. [0003] In the frame of the bogie, the beam and the side beam are the main load-bearing parts. The beam is welded horizontally between the side beams and connected with the left and right side beams to form a rigid whole. The beam can be divided into a round tube beam and a welded plate For box-shaped beams, when circular tubular beams are used, two parallel beams usually need to be arranged. When box-shaped beams are used, they can be an integral beam. The strength of the connections ha...

AI Technical Summary

Problems solved by technology

When this connection method is connected, the welding quality is low, the connection reliability is poor, it is easy to be damaged, the workmanship is not good, and there are defects such as large space occupation, large processing amount, and inconvenient installation.

[0005] In addition, the secondary vertical shock absorbers in the existing bogies are generally installed between the side beam and the bolster and are located outside the side beam, far away from the center line of the car body. The up and down strokes are relatively large, which will affect the service life of the secondary vertical shock absorber, and even cause damage in severe cases

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