摘要
提出用剖分结构的静压轴承作为氧气压缩机曲轴支承轴承,取代轴瓦剖分形式的滑动轴承。设计了剖分式静压轴承结构和节流方式,确定该静压轴承的各项参数,分析了油腔、小孔结构对静压轴承的轴承刚度、功耗以及承载能力的影响。结果表明采用小孔静压轴承避免了普通滑动轴承工作时的干摩擦,实现了真正的油膜润滑;当小孔直径选择适当数值时,不仅可获得较大的承载刚度,并且具有较小的摩擦功耗。
The idea of using split hydrostatic bearing as the support bearing of crankshaft in oxygen compressor to re- place the split sliding bearing was proposed. The structure and throttle scheme of the split hydrostatic bearing were de- signed, the parameters were determined, and the influence of the oil chamber and the small cavity structure on the clear- ance, stiffness, power dissipation and carrying capacity of the bearing was analyzed. Results show that the using of the ori- fice aero-static bearing could avoid dry friction in working,which realizes the real oil film lubrication, reduces the friction consumption, improves the carrying capacity, and saves the cost. When choosing appropriate diameter of orifice, the stron- ger rigidity and lower power dissipation can be got for the hydrostatic bearing.
出处
《润滑与密封》
CAS
CSCD
北大核心
2009年第12期106-109,共4页
Lubrication Engineering
关键词
氧气压缩机
静压轴承
小孔节流
轴承刚度
轴承功耗
oxygen compressor
hydrostatic bearing
orifice compensated
bearing rigidity
bearing power dissipation
