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一、轴承结构与工作原理轴承结构原理图见图1。压力油经过孔1进入环形槽2,然后通过节流缝隙h。进入油腔。油腔里的油经由两端封油面l_1及腔内孔圆台缝隙回至油箱,当受载后各腔之间还有内流。轴承的结构特点是取消了周向回油槽,采用六等分矩形油腔,而且油腔内增设若干个圆台缝隙的回油孔,并设在油腔长度方向主轴挠度最大的位置上。节流器为圆台缝隙(为加工方便亦可用方台),设在轴承外圆上,使结构紧凑可靠,加工及装配工艺简单。采用六油腔结构,主要为了提高主轴的回
First, the bearing structure and working principle Bearing structure diagram shown in Figure 1. The pressure oil enters the annular groove 2 through the hole 1 and then passes through the throttle gap h. Into the oil chamber. The oil in the oil chamber is returned to the oil tank through the oil seal surface l_1 at both ends and the round hole in the hole of the oil chamber. When the oil is loaded, the internal flow still exists between the chambers. The structural features of the bearing are the elimination of the circumferential oil return groove, the use of six equal rectangular oil chamber, and the oil chamber to increase the number of round table crevice oil return hole, and located in the oil chamber length direction of the spindle deflection maximum position. The throttle for the truncated gap (for the convenience of processing can also be used square station), located in the bearing outer circle, so that compact and reliable structure, processing and assembly process is simple. The use of six oil chamber structure, mainly to improve the spindle back