摘要
本文首先对蜗轮的磨损机理进行了阐述,随后,根据蜗轮的表面宏观磨损形貌,得出导致该蜗轮表面磨损失效的原因是疲劳点蚀、粘着磨损及磨粒磨损综合作用的结果。进一步通过对蜗轮的材质、金相组织以及蜗轮工作面的微观形貌的综合分析,得出由于蜗轮中(α+δ相)共析体总体数量较少,且偏析严重,在低速重载的工作条件下,从而导致蜗轮以粘着磨损为主,同时伴随着其它的磨损方式。
The paper firstly has set forth in depth the worm gear attrition mechanism, then according to the worm gear superficial macroscopic attrition appearance, we obtains the reason which this worm gear surface attrition expires is the combined action of weary pitting, the coherence attrition and the abrasive attrition. Furthermore, by generalized analyzing for the worm gear material quality, the microstructure as well as the worm gear working surface microscopic appearance, we concludes that because quantity of the worm gear＇s eutectoid（α＋δ） is overall few, in the meanwhile, the eutectoid presents segregation severely, so in such low speed heavy load working condition, this could cause worm gear by way of coherence attrition primarily, at the same time is following other attrition ways.
出处
《传动技术》
2006年第4期31-34,共4页
Drive System Technique
关键词
蜗轮
失效分析
锡青铜
偏析
压裂泵
worm gear failure analysis tin bronze segregation fracturing pump
