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日本光电公司生产的RM-46M型机器,是一种多功能四道生理记录仪。其走纸速度控制采用了机械齿轮变速法,由于纸速控制有八个档次,因而结构较为复杂。下面介绍一例纸速失控故障的修复: 故障现象:选择mm/sec或mm/min方式工作时,均是5、10、15、25、30、50档次的纸速较其正常值快4倍,而用60、100mm/sec或mm/min档时纸速正常。故障分析:这一特殊故障,出现在机械变速控制部件,经仔细观察发现,该机机械变速装置主要依靠脱钩继电器的吸合及释放,来控制与之相对应的齿轮,并通过该齿轮内壁与连杆之间一根直径为0.5mm钢丝弹簧的作用,来控制同轴金属齿轮的转动速度,从而实现走纸变速功能。例如,选
Japan’s photoelectric company’s RM-46M-type machine, is a versatile four-channel physiological recorder. The paper speed control using a mechanical gear speed method, the paper speed control has eight grades, so the structure is more complicated. Here is an example of paper speed loss control failure repair: Symptom: Select mm / sec or mm / min mode work, are 5,10,15,25,30,50 grade paper speed than its normal value 4 times faster, With 60,100mm / sec or mm / min file speed normal. Failure Analysis: This special failure, appeared in the mechanical speed control components, after careful observation found that the machine mechanical transmission mainly rely on the pull-off relay pull and release, to control the corresponding gear and through the gear wall and A diameter between the connecting rod 0.5mm wire spring role to control the coaxial metal gear rotation speed, in order to achieve paper speed function. For example, choose