旋回破碎机大型薄壁偏心轴套加工工艺优化  

Optimization on machining process for large thin-walled eccentric sleeve of gyratory crusher

作　　者：祝兴华 ZHU Xinghua(Luoyang Mining Machinery Engineering Design Institute Co.,Ltd.,Luoyang 471039,Henan,China;State Key Laboratory of Mining Heavy Equipment,Luoyang 471039,Henan,China)

机构地区：[1]洛阳矿山机械工程设计研究院有限责任公司,河南洛阳471039 [2]矿山重型装备国家重点实验室,河南洛阳471039

出　　处：《矿山机械》2020年第2期31-34,共4页Mining & Processing Equipment

摘　　要：根据旋回破碎机大型偏心轴套特点,制定机加工工艺成本评估标准,针对该类型零件刚性差易变形、斜偏心内孔加工困难及加工效率低等问题,策划高效的加工工艺方案。利用工件自身加工余量,在工件外圆和端部保留适当的工艺环用于装卡,有效改善车镗加工时找正、定位和微调等难题,实现了"以车代镗";并针对偏心量与斜度提出一种快捷的测量方式,有效控制内孔的加工精度。该工艺方案应用于实际生产中,达到了降本增效的目的。According to the characteristics of the large eccentric sleeve of the gyratory crusher,a set of evaluation criteria for machining process cost was formulated.In view of the problems of the similar part such as poor rigidity,easy deformation,difficulty in machining oblique eccentric hole and low machining efficiency,a set of efficient machining process was worked out.It was proposed to apply the machining allowance of the workpiece to remain suitable technical ring at the outer circle and the end of the workpiece for clamping,so as to avoid the alignment,positioning and fine adjustment in boring procedure and realize the replacement of boring with turning.In addition,a rapid measurement method for the eccentricity and obliquity was offered,thus the machining precision of the hole was effectively managed.The machining process had been applied to production,thus the cost reduced and the efficiency enhanced.

关 键 词：旋回破碎机 偏心轴套 薄壁加工 斜偏心 找正 

分 类 号：TD451[矿业工程—矿山机电]