空冷式机床润滑油冷却系统的设计与研究

The research and design of the air-cooled machine tool lubricating oil cooling system

针对机床润滑油的油温升高对机床内外工作的影响,从机油与空气的换热原理着手,对翅片管换热器内外热量传递过程展开分析,并结合机床实际传热的条件以及机油粘温曲线和粘温特性分析,找出齿轮油高效、高可靠性的最佳出口油温,最终导出机油换热器进口油温与换热器迎面风速的关系式,从而给出了该冷却系统的理论依据,并结合逻辑控制,使得该系统具有动作快速、高效、能耗低等优点,从而控制机油的油温在其黏温性能的高效区,保证了机床高效可靠运行。

Considering the influence to the work inside and outside the machine tool for the machine lubricant temperature rising,based on the principle of heat exchanger between oil and air,the heat transfer process inside and outside of the finned tube heat exchanger are analysised,combin with the actual machine heat transfer condition and oil viscosity-temperature curve and viscosity-temperature characteristics analysis to identify the gear oil high efficiency,high reliability,best export oil temperature,ultimately derives the relationship oil between imported oil temperature of the heat exchanger and heat exchanger face velocity,which gives the theoretical basis of the cooling system,combining with logic control. So that makes the system operation with the action fast,efficient low-power,etc.,in order to control the oil temperature of the oil in the high zone of the viscosity-temperature performance,to ensure the efficient and reliable operation of machine tools.