【摘要】 对辊成型机的关键部件成型辊部件是采用辊轴和辊套的过盈配合来转递动力的,过盈量的选择对成型辊辊套的使用寿命起着重要的作用。针对辊套经常开裂的情况,对辊轴、辊套的过盈配合进行有限元ANSYS非线性分析,比较两种不同的约束条件,得出正确的约束条件。用ANSYS非线性分析辊套辊轴的等效应力、变形量和接触压力,并和辊轴、辊套过盈配合的传统理论计算进行比较,分析开裂的原因,确定适当的过盈量,为设计提供一定的借鉴。更多还原

【Abstract】 As the key component of the roll forming machine, the forming roll assembly transmit the power via the interference fit of the roll shaft and the roll sleeve, and the interference amount plays an important role in the service lifespan of the roll sleeve. In view of frequent cracking of the roll sleeve, the paper conducted nonlinear FEA of the interference fit of the roll shaft and the roll sleeve, and achieved appropriate constraints after contrasting two kinds of constraints. ANSYS was applied to carry out nonlinear analysis on the equivalent stress, deformation and contact of the roll sleeve and the roll shaft, and then which were contrasted with the ones calculated by traditional theory. At last, the cracking causes were analyzed, and appropriate interference amount was determined, which offered some references for the design.更多还原