A rectangular cavity static pressure circular guide oil pad. The static pressure bearing system is one of the core components of the heavy vertical numerical control equipment, and the operating accuracy of the supporting system can directly affect the machining precision of the parts. When the supporting parts quality is very heavy, because of the large diameter rotary table to speed is very high, so high speed and heavy load, bearing oil film will lead to loss of hydrostatic oil film thinning, severe dry friction loss of hydrostatic bearing system will be carrying capacity. The utility model is proposed for the hydrostatic bearing system with circular hydrostatic guideway last week to evenly arranged sector oil pad to solve this problem, open rectangular oil cavity and an oil inlet hole in the fan-shaped oil pad, rectangular oil cavity and the oil film clearance form a ladder bearing oil cavity form, using rectangular stepped out to improve the hydrodynamic effect of hydrostatic guideway the bearing capacity of oil production, to avoid the hydrostatic bearing system of boundary lubrication or dry friction lubrication failures. The utility model is used to improve the bearing capacity and operation reliability of the static pressure bearing system.
【技术实现步骤摘要】
一种矩形腔静压圆导轨油垫
本技术涉及一种矩形腔静压圆导轨油垫,可适用于重型静压支承系统圆周导轨支承形式,用于提高支承系统的承载性能。
技术介绍
静压支承系统是重型立式数控装备中的核心部件之一,支承系统旋转台主要用于周期性回转体零部件进行加工的支承工作台,因此,旋转工作台的运行精度可直接影响到零部件的加工精度。当支承零部件质量很重时,由于旋转工作台的直径很大导致运行线速度很高,这样高速、重载荷工况时,支承油膜会出现静压损失导致油膜变薄,严重时产生干摩擦静压支承系统将会丧失了承载能力,因此,对于静压支承油膜润滑形式及提高静压支承系统运行可靠性研究就显得尤为重要了。
技术实现思路
本技术的目的在于设计一种矩形腔静压圆导轨油垫,提高静压支承系统承载力及运行可靠性;本技术解决其技术问题所采用的技术方案是:在十米重型立式车床上,静压支承系统采用圆环静压导轨上周向均匀布置24个扇形油垫,在扇形油垫上开设矩形油腔与进油孔,油垫内、外径分别为2720mm和2320mm,油腔深度为10mm,矩形腔长边为400mm,矩形腔宽边为250mm,进油孔直径为14mm。矩形油腔与油膜间隙形成阶梯轴 ...
【技术保护点】
一种矩形腔静压圆导轨油垫,其特征在于:重型数控十米立式车床上的静压支承系统采用圆环静压导轨上周向均匀布置24个扇形油垫,在扇形油垫上开设矩形油腔与进油孔,油垫内、外径分别为2720mm和2320mm,油腔深度为10mm,矩形腔长边为400mm,矩形腔宽边为250mm,进油孔直径为14mm,矩形油腔与油膜间隙形成阶梯轴承形式。
【技术特征摘要】
1.一种矩形腔静压圆导轨油垫,其特征在于:重型数控十米立式车床上的静压支承系统采用圆环静压导轨上周向均匀布置24个扇形油垫,在扇形油垫上开设矩形油腔与进油孔,油垫内...
【专利技术属性】
技术研发人员:张艳芹,郭玉鹏,邓力源,张海霞,
申请(专利权)人:哈尔滨理工大学,
类型:新型
国别省市:黑龙江,23
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