机加工工艺对钻头牙轮开裂的影响  

Effect of Machining Process on Rock Bit Cone Break

作　　者：黄伯棠[1] 

机构地区：[1]长江大学机械工程学院,湖北荆州434023

出　　处：《江汉石油学院学报》2004年第4期177-178,共2页Journal of Jianghan Petroleum Institute

摘　　要：造成钻头牙轮破裂的原因是多方面的 ,其中钻头机加工对牙轮开裂的影响较大。为此从齿孔锥度、过盈量的工艺和机加工角度分析了牙轮开裂的原因 。There are many causes inducing rock bit cone break, in which the effect of its machining on the cone is more serious. Thus the causes of cone are analyzed from the aspects of conicity of cone tooth holes, the process of magnitude of interference and angle of machining. Suggestions are put forward for preventing the bit cone break in machining.

关 键 词：牙轮钻头 钻头牙轮 机械加工 裂纹 防止 

分 类 号：TE921.106[石油与天然气工程—石油机械设备]