Wavy stopping block with wearing plate and method for preventing steel spring from being broken

Abstract

The invention discloses a wavy stopping block with a wearing plate and a method for preventing a steel spring from being broken. The vertical stopping block is positioned in the steel spring and comprises rubber, the wearing plate and a base. The wearing plate is embedded in the top of the rubber, and annular straight sections are arranged at the upper end of the rubber; annular arc sections are arranged below the annular straight sections and include inwardly sunken annular arc sections and outwardly protruded annular arc sections, and the inwardly sunken annular arc sections and the outwardly protruded annular arc sections are alternately distributed; the base is arranged at the lower end of the rubber; a concave hole is formed in the bottom of the rubber. The wavy stopping block and the method have the advantages that the stiffness, the variable stiffness and limiting positions of the vertical stopping block can be adjusted, so that vertical load borne by the steel spring can be reduced, metal fatigue of the steel spring in locomotive running procedures can be relieved, and accordingly the steel spring can be prevented from being broken; the vertical stopping block is firm in structure and has little possibility of being damaged, the wearing plate, the rubber and the base are tightly combined with one another and have little possibility of being loosened or separated, and the wavy stopping block and the method are wide in application range and high in universality.

Description

technical field [0001] The invention relates to a buffer device used on a locomotive, in particular to a vertical stop for a buffer locomotive primary suspension system. Background technique [0002] At present, in the manufacturing process of railway locomotives, spring devices are widely used for bearing and vibration reduction. As a key component of locomotives, springs have an important impact on the dynamic performance and running quality of locomotives. With the implementation of railway speed-up and heavy-duty strategy, the number of failures affecting the running performance of locomotives due to broken springs has gradually increased, and the running stability of locomotives has deteriorated, which has caused hidden dangers to traffic safety. [0003] The steel spring directly above the locomotive axle box is one of the main parts of the bogie, and the steel spring bears the weight of the locomotive above the bogie frame. The stiffness of the vertical force transmi...

AI Technical Summary

Problems solved by technology

It can be seen that the various elastic buffer devices in the above-mentioned patents do not have a structure to adjust the variable stiffness, and the adjustment of the stiffness is also limited due to their simple structure, so it is difficult to effectively reduce the metal fatigue of the steel spring, and it is still difficult to greatly improve the stiffness of the steel spring. The ability of the spring to resist fracture, so how to prevent the fracture of the steel spring more effectively needs to be further explored

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