Railway wagon swing bolster and side frame cooling and cleaning method and system

Abstract

The invention relates to a railway wagon swing bolster and side frame cooling and cleaning method and system. The railway wagon swing bolster and side frame cooling and cleaning method and system changes a traditional casting cleaning mode into a mode of hanging and transporting castings through accumulation suspension chains to on-line complete the steps such as casting cooling, casting head cutting, flaw clearing and abrasive blasting and accordingly to achieve clean casting processing. The railway wagon swing bolster and side frame cooling and cleaning method and system has the advantages of simple process, small space occupation, high production efficiency and low labor intensity.

Description

technical field [0001] The invention relates to the technical field of cooling and cleaning systems for large steel castings of railway freight cars, in particular to a cooling and cleaning method and system for railway freight car bolster side frames. technical background [0002] Bolsters and side frames are the key parts of the running part of railway wagons. During the production process of bolsters and side frame castings of railway wagons in my country, the traditional cleaning method of laying the castings on the site is adopted after the bolsters and side frame castings are solidified. [0003] The traditional cleaning method is: after the castings are poured and solidified, shake out the sand on the shakeout machine, then hoist the sand box and castings to the cleaning site together, lift the upper sand box, turn over the lower sand box and castings, and lift the castings and castings respectively. Lower the sand box, arrange the castings neatly, and cool them natur...

AI Technical Summary

Problems solved by technology

[0005] (1) The cleaning steps are cumbersome and complicated

[0006] (2) The area required for cleaning castings is large

[0007] (3) The cycle of cleaning castings is long

According to years of experience, it takes at least 8 hours for castings of bolsters and side frames to reach the operating temperature under the condition of natural wind cooling, which restricts the increase of production capacity;

[0008] (4) Products are prone to quality problems

After unpacking, the high-temperature castings are stacked together and cooled under natural conditions. The castings are easily deformed and the cooling is uneven.

[0009] (5) The labor intensity of workers is high and there are potential safety hazards

When cleaning castings, it must be turned over several times to remove all the defects of the castings, which greatly increases the labor intensity, and also increases the probability of safety accidents during the turning process

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