挖掘机的一些低速重载齿轮传递扭矩大、工作条件恶劣、结构设计要求苛刻、接触精度难以保证,因而往往产生早期失效。我们厂生产的WK-2挖掘机回转齿轮也有类似情况。有时在试车之后,齿表面还出现程度不同的刮伤,严重的甚至出现齿面胶合现象(见图1中阴影部分)。为了寻求最佳解决办法,我们曾作了一系列分析试验。 Excavator some low-speed heavy-duty gear transmission torque, poor working conditions, structural design requirements are harsh, contact accuracy is difficult to guarantee, and therefore often produce early failure. The same goes for the WK-2 excavator slewing gear produced by our factory. Sometimes after the trial run, tooth surfaces also exhibited varying degrees of scratches, and even severely toothed surfaces (see shading in Figure 1). In order to find the best solution, we have conducted a series of analysis experiments.