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1.故障现象1台在思遵高速公路工程中使用的中联PY190型平地机,其平衡箱从动轴轴承因缺少润滑油而损坏,更换新轴承使用数天后又出现损坏现象。2.原因分析该平地机平衡箱,采用重型滚子链传动,传动机构主要由主动轴、从动轴、轴承、主动链轮、从动链轮、连接盘、链条、隔套、调整垫等组成。经分析,从动轴轴承损坏主要有以下3种原因:一是更换从动轴轴承时,安装、调试存在问题。如轴承装反、轴承垫圈装错、未调整轴承轴向间隙或间隙调整不
1. Symptom 1 in Zun highway engineering used in the Zoomlion PY190 grader, the balancer driven shaft bearings due to the lack of lubricating oil damage, replace the new bearing a few days after the damage occurred again. 2. Analysis of reasons The grader balancing machine, using heavy-duty roller chain drive, drive mechanism mainly by the drive shaft, driven shaft, bearings, drive sprocket, driven sprocket, connecting plate, chain, spacer, adjusting pad, etc. composition. After analysis, driven shaft bearing damage mainly in the following three reasons: First, the replacement of driven shaft bearings, installation, commissioning problems. If the bearings installed anti-bearing washer installed wrong, no adjustment of the bearing axial clearance or clearance adjustment is not