【摘 要】
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磨机端盖作为矿用磨机的关键零件,对于磨机的运转精度、使用寿命以及安全性有重要影响[1]。由于矿山机械设备工作条件恶劣,使用和维护条件差,且长期在重载和交变载荷下工作,
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磨机端盖作为矿用磨机的关键零件,对于磨机的运转精度、使用寿命以及安全性有重要影响[1]。由于矿山机械设备工作条件恶劣,使用和维护条件差,且长期在重载和交变载荷下工作,容易产生疲劳裂纹和机械失效。若铸造工艺设计不合理,则端盖的轴颈或R区易产生热裂纹缺陷。尤其是大型磨机端盖,如果缺陷处理不当,在重载下运行,缺陷处极易产生应力集中,导致端盖突然断裂,发生恶性事
Mill cover as a key part of mine mill, the mill’s operating accuracy, service life and safety have a significant impact [1]. Due to the harsh working conditions of mining machinery and equipment, poor service and maintenance, and long-term work under heavy load and alternating load, prone to fatigue cracks and mechanical failure. If the casting process design is unreasonable, then the end of the journal or R zone prone to hot crack defects. Especially large mill end caps, if the defect is handled improperly, under heavy load operation, the defects are prone to stress concentration, resulting in a sudden fracture of the end cap, the occurrence of vicious things
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