High-speed train connecting sleeper beam

Abstract

A high-speed train connecting sleeper beam comprises an anti-S-shaped damper base and an anti-lateral-twisting pull rod base. Square pins and round pin positioning guiding installing holes, all of which are connected with a train body are formed in end side beams. The high-speed train connecting sleeper beam is characterized in that the connecting sleeper beam is of an integral casting box structure, an integral cavity is formed in the middle of the connecting sleeper beam and serves as an additional air chamber for air springs, strengthening ribs are arranged on the upper plane, and the inner cavity of the connecting sleeper beam is composed of transverse casting bars and longitudinal casting bars. According to the connecting sleeper beam, the strength of the connecting sleeper beam is guaranteed, manufacturability and air tightness are good, the weight is low, and the strength is high. The simplicity of mounting and dismounting of a bogie and the train body is achieved, the monopoly from the foreign technology is broken, and cost is reduced.

Description

technical field [0001] The invention relates to the technical field of railway vehicles, in particular to a connecting corbel applied to high-speed EMUs. Background technique [0002] The contact bolster is the connecting part between the secondary suspension device of the bogie, the traction device and the car body, and bears and transmits various loads between the bogie and the car body. It is also used as an additional air chamber of the bogie equipped with an air spring system, which facilitates the repair and maintenance of the bogie and reduces the operating cost. [0003] At present, because there is no casting experience of similar products in China, the contact bolsters used in the bogies of high-speed EMUs are all cast aluminum alloy structures imported from abroad, and the cost is very high, which increases the production cost of the enterprise. In addition, the imported bolster is a trapezoidal shell, and the bolster needs to bear the load from the car body. The...

AI Technical Summary

Problems solved by technology

[0003] At present, since there is no casting experience of similar products in China, the contact bolsters used in the bogies of high-speed EMUs are all cast aluminum alloy structures imported from abroad, and the cost Very high, increasing the production cost of the enterprise

In addition, the imported bolster is a trapezoidal shell, and the bolster needs to bear the load from the car body. The stress after the bolster is connected to the car body is relatively concentrated, which is easy to cause stress damage to the bolster and shorten its service life.

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