Method for producing air spring large capsule

Abstract

The invention relates to a method for manufacturing a large capsule of an air spring. The method comprises a two-section molding procedure and a middle mold vulcanization procedure; the two-section molding procedure comprises the following steps: firstly, an inner layer rubber sheet, a cord fabric layer and an outer layer rubber sheet for forming the capsule are adhered and coiled to form a rubber fabric cylinder of which two ends are open; secondly, the rubber fabric cylinder is sleeved on a flared machine head; a small annular steel wire ring and a large annular steel wire ring of two sub-mouths are buttoned; thirdly, the cord fabric layer is folded along a mouth of the steel wire ring so as to wrap up and compact the steel wire ring by the cord fabric layer; and finally, a sealing rubber sheet is adhered to the sub-mouth part and is compacted; a capsule billet needed by the large capsule is formed after being detached from the machine head; the middle mold vulcanization procedure comprises the following steps: the capsule billet is put into a vulcanization mold and is charged and shaped; after the full mold matching, the capsule billet is filled with hot water and is vulcanized; after vulcanization, hot water inside the capsule billet is emptied; the mold is opened; and the vulcanized capsule is taken out. The method greatly improves the strength and fatigue service life of the air spring capsule of the steel ring with a nonsymmetrical structure and easily realizes the shaping of the extroversive shape of the upper sub-mouth in the vulcanization process.

Description

technical field [0001] The invention relates to a method for producing a large capsule of an air spring used for shock absorption of a locomotive bogie, and a mold for vulcanization involved in the production method. Background technique [0002] The air spring is an elastic element that uses the reaction force of the compressed air inside the rubber airbag as the elastic restoring force. It has the following characteristics: ①The air spring has nonlinear characteristics, and its characteristic curve can be designed into an ideal shape; ②The air spring is light in weight, has small internal friction, and has good vibration isolation and noise reduction capabilities for high-frequency vibration; ③Air spring The stiffness and bearing capacity of the air spring can be adjusted by adjusting the internal pressure of the rubber air bag; ④ the manufacturing process of the air spring is complicated and the cost is high. The air spring is divided into three types according to the de...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a simple and easy new production method capable of ensuring product quality in view of the problems of poor quality and low product life in the products produced by the existing large capsule manufacturing method