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本文着重介绍了我厂为解决货车上心盘裂纹问题而设计的直径为300mm、高度为80mm,法兰板为等强度的货车上心盘新方案,并通过四种货车上心盘静强度试验结果的比较,说明该新方案比货通上心盘(HT104·114·01)在相同工况下可降低圆弧根部应力50％左右,并与直径350mm、高度80mm加大直径的上心盘应力接近。新方案的最大优点是保持与货通上心盘的互换性。本文还对如何进一步解决货车上心盘裂纹问题提出几点看法。
This article focuses on our factory to solve the problem of the heart of the truck cracks designed diameter 300mm, height 80mm, the flange plate is equal to the strength of the truck heart plate new program, and through the four trucks on the plate static strength test The results show that the new scheme can reduce the root stress of circular arc about 50% under the same working conditions and increase the diameter of the upper center disk with diameter of 350mm and height of 80mm Close to stress The biggest advantage of the new program is to maintain the interchangeability of goods with the heart. This article also made some suggestions on how to further solve the problem of the crack on the center disk of the truck.