Vertical stop structure

Abstract

The invention discloses a vertical stop structure. The vertical stop structure comprises a spring, a framework and an axle box body, wherein the spring is arranged between the framework and the axle box body, an upper stop seat is arranged between an upper part of the spring and the framework, and the upper stop seat partially extends into the spring; a lower stop seat is arranged between a lower part of the spring and the axle box body, and the lower stop seat partially extends into the spring; the upper stop seat comprises a steel part close to the framework and connected with the framework and an elastic part close to one end of the lower stop seat, tooth-shaped structures are vertically arranged on the elastic part and the steel part, the elastic part and the steel part are connected in a meshed mode through the tooth-shaped structures, and hardness of the elastic part is smaller than that of the steel part. When a vehicle runs, the elastic piece is continuously lifted upwards by a vertical force generated by continuous collision contact between the upper stop seat and the lower stop seat, and a stop gap value is also continuously increased. And when the upper stop seat and the lower stop seat are not contacted any more, the stop clearance value is a primary vertical stop clearance so that automatic adjustment of the stop clearance value is realized.

Description

technical field [0001] The invention relates to the field of bogie primary suspension devices, in particular to a vertical stop structure. Background technique [0002] Most of the primary suspension devices of domestic high-speed EMUs and intercity EMUs use overhead steel springs, and the primary stoppers are set inside the steel springs, making it difficult to measure and adjust the clearance of the primary stoppers. During the static loading test of the bogie, if the stop gap is found to be unqualified, the gap can be adjusted only after the primary suspension device is disassembled, and the disassembly of the primary suspension requires a lot of manpower, material resources and time. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a vertical stop structure for the deficiencies of the prior art, which can realize the automatic adjustment of a series of vertical stop gaps and reduce the manufacturing process ,...

AI Technical Summary

Problems solved by technology

[0002] Most of the primary suspension devices of domestic high-speed EMUs and intercity EMUs use overhead steel springs, and the primary stoppers are set inside the steel springs, so that a The clearance of the tie stop is difficult to measure and adjust

During the static loading test of the bogie, if the stop gap is found to be unqualified, the gap can be adjusted only after the primary suspension device is disassembled, and the disassembly of the primary suspension requires a lot of manpower, material resources and time

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