摘要
柱塞泵是油田压裂设备的核心部件,其内部传动齿轮是将旋转运动转换成柱塞往复运动的重要部件,需要长时间承受高速重载的作用,可靠性要求高。针对出口美国的一台2500型柱塞泵中的齿轮两次断裂失效实例进行机理分析,发现曲轴上大齿轮的啮合精度、有效硬化深度特别是造成齿轮疲劳断裂失效的主因。装配过程中带来的轴向载荷会造成小齿轮传动时的冲击,造成小齿轮齿的脆性断裂。上述结论为2500型柱塞泵齿轮传动系统的设计和制造提供了科学依据。
The plunger pump is an important component of oilfield fracturing equipment,and its internal transmission gears are essential parts to convert the rotary motion into reciprocating motion of the plunger,which would suffer from the function of high speed heavy load in a long time with high reliability requirement.In this paper,two fracture failures of gears in a 2500 plunger pump exported to the United States are analyzed;it is found that the meshing accuracy and the effective hardening depth of the bull gear on crankshaft are the main causes of fatigue fracture failure of the gears.The axial load during the assembly process would exert the impact force during the pinion gear transmission,resulting in brittle fracture of the pinion teeth.The above findings are meanful for the design and manufacture of gear transmission system of the 2500 type plunger pump.
作者
张斌
王传鸿
刘江凯
ZHANG Bin;WANG Chuan-hong;LIU Jiang-kai(SJS Co.,Ltd.of Sinopec Oilfield Equipment Corporation,Jinzhou Hubei 434024,China)
出处
《机械研究与应用》
2020年第3期182-184,共3页
Mechanical Research & Application
关键词
柱塞泵
齿轮断裂
失效分析
重载
plunger pump
gear fracture
failure analysis
heavy load
作者简介
张斌(1980-),男,湖北孝感人,高级工程师,研究方向:油田高压柱塞泵及油田供液供砂离心泵。
