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由于往复机械机构的复杂性,使其运行中的状态监测比起旋转机械来更为困难。因此,国内许多工厂目前对于往复机械基本上都没有配置。国外最近开发了两种在线监测系统新技术,可用于往复机械的状态监测和故障诊断,现简介如下。 ①丹麦BK公司3540机器监测系统可用于往复机械的在线监测,其方法是:在往复机械的十字头滑道部位安装加速度传感器。采集机器的信号送入模件式振动监测仪时,采用独特的循环分析技术,把往复机械一个冲程中的860°转角分成60等分进行测量。监测分析功能有循环DC、循环低通/带通和循环自谱,测量范围为0～44.7KHz。对每一等分
Due to the complexity of the reciprocating mechanism, it is more difficult to monitor the condition during operation than rotary machines. Therefore, many domestic factories for the reciprocating machinery are basically not configured. Foreign recently developed two new online monitoring system technology can be used for the reciprocating machinery condition monitoring and fault diagnosis, are as follows. ① Danish company BK 3540 machine monitoring system can be used for on-line monitoring of reciprocating machinery, the method is: the reciprocating machinery cross-slide part of the installation of acceleration sensors. Acquisition machine signal into the modular vibration monitor, the use of a unique cycle of technology, the reciprocating machinery in a stroke of 860 ° rotation is divided into 60 equally divided measurements. Monitoring and analysis functions are circulating DC, circulating low-pass / bandpass and cyclic self-spectrum, measuring range 0 ~ 44.7KHz. For each division