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滚筒应力与形变的主要计算方法有哪些?

天华科技 次浏览 2018-29-06

滚筒是带式输送机的首要部件,分为传动滚筒、改向滚筒、张紧滚筒和增面滚筒。大型带式输送机的输送带张力可高达几百万牛,滚筒接受着非常大的合张力和转矩,通常选用铸焊结构 (即铸造的辐板与轮毂集成的端盘和筒壳焊接),近年来开始选用模锻的端盘与筒壳焊接,滚筒轴与端盘经过胀套胀紧联接,轴两头一般由调心滚子轴承支撑。滚筒的失效方式首要包含轴的开裂、胀套松动、筒壳摩损和焊缝开裂等。这些失效方式的发生与材料、制作装置精度等要素有关,而降低滚筒的最大应力是进步滚筒寿数与可靠性的首要途径。
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