浙江第七地质队创造了一种柴油机曲轴轴瓦安全警戒铃，经生产使用，效果异常良好，杜绝了烧曲轴轴瓦的事故，保证了正常钻进。安全警戒铃的结构原理如图所示，将它装在机油过滤器的出油口（或机油泵排油营中间），利用油管三通与高压油管连通。柴 Zhejiang Seventh Geological Team has created a safety warning bell for diesel engine crankshaft bearings. After production and use, the effect is very good. It eliminates the accident of burning crankshaft bearings and ensures normal drilling. The structural principle of the security alarm bell is shown in the figure. It is installed in the oil outlet of the oil filter (or in the middle of the oil pump oil discharge camp), and uses the oil pipe tee to communicate with the high pressure oil pipe. firewood