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16吨带斗门机是上海港煤炭装卸公司主要卸船设备。该机的旋转支承采用交叉滚柱轴承(如图1),外径为4米,转速为1.24转/分。在以往的门机管理中,交叉滚柱轴承(以下简称大轴承)一直是比较棘手的部位,因为大轴承采用全封闭结构,人眼无法观察滚柱在滚道中的运转情况。即使是经验丰富的技术人员或修理工也很难直接判断大轴承运转是否正常。曾经发生过因误判而造成不必要的停机修理,浪费了工时和财力。大轴承一旦发生故障,检
16 tons Doumen door machine is the main port of Shanghai Port Handling Company unloading equipment. Rotating support of the machine using cross roller bearings (Figure 1), an outer diameter of 4 meters, speed of 1.24 rev / min. In the past, the door machine management, cross roller bearings (hereinafter referred to as large bearings) has been more difficult parts, because the large bearings with fully enclosed structure, the human eye can not observe the roller in the raceway in operation. Even experienced technicians or mechanics find it hard to judge directly whether large bearings are working properly. There have been unnecessary downtime due to miscarriage of justice caused by a waste of time and financial resources. Large bearings in the event of failure, seized