多年来,我厂操作CA9215液压半自动车床的工人,经常发生挤手、轧手事故。 产生这类事故的原因有二:一是电磁铁的误动作。原线路中电磁铁线圈一端(B)直接接到电源上(如图1)。由于控制电压是380伏,如果线圈因长期使用 或油浸而使绝 缘层损坏,就 会造成线圈匝 间短路和线圈 与铁芯 Over the years, I plant operators CA9215 hydraulic semi-automatic lathe workers, often crowded hand, rolling hand accident. There are two reasons for such accidents: First, the malfunction of the electromagnet. The original line solenoid coil end (B) directly connected to the power (Figure 1). As the control voltage is 380 volts, if the coil due to long-term use or oil immersion and damage to the insulation, it will cause a short circuit between the coil turns and the coil and the core