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兖州矿业集团鲍店洗煤厂原煤车间的块煤脱介振动筛故障率高，影响了生产。遂与中国矿业大学合作对其进行技术改造。1存在问题该机是某厂引进美国技术生产，用单电机驱动2个箱式激振器。激振器安装在主横梁上（传动如图1所示）。存在的问题是：（1）轴承寿命短。一般为2个月左右
Yanzhou Mining Group Baodian coal washery lump coal removal of vibrating screen lump failure rate is high, affecting the production. Then with the China University of Mining and its technical transformation. 1 problems The aircraft is the introduction of a factory in the United States technical production, with a single motor drive 2 box-type exciter. Vibrator installed in the main beam (transmission shown in Figure 1). The problems are: (1) bearing life is short. Generally about 2 months