灵宝市黄金机械有限责任公司在生产加工2YA1536型圆振动筛时,发现偏心轴两端部轴径(与平衡轮及带轮联接)中心与轴承位置轴径中心偏心3.2 mm。偏心轴长1 830mm,最大直径φ165mm,重量近270kg。轴两端基准中心孔无法加工,加工深了2个中心孔接近重合,加工浅了无法压紧轴进行切削加工,加工难度大。原偏心轴尺寸如图1所 Lingbao Gold Machinery Co., Ltd. in the production and processing 2YA1536-type circular shaker, the eccentric shaft at both ends of the shaft diameter (with balance wheel and pulley connection) center and bearing shaft center eccentricity 3.2 mm. Eccentric shaft length 1 830mm, maximum diameter φ165mm, weight nearly 270kg. The center of the shaft at both ends of the reference center can not be processed, the processing of the deep center hole close to coincidence 2, shallow processing can not be compressed shaft machining, processing difficult. The original eccentric shaft size shown in Figure 1