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一、单楔式和多楔式油膜軸承的比較单楔式油膜軸承是滑动軸承的一种基本型式,它的构造大致可分为三种:(1)內外均为圓柱形;(2)內孔是圓柱形,外面为圓錐形;(3)与第2种相反。磨床中的砂輪軸承过去大多做成第2种形式,以便于調节間隙。当軸靜止时,由于軸的自重作用,軸与軸承在垂直方向接触。軸轉动后,潤滑油便附着在軸的表面而进入間隙,在油楔的作用下产生了压力,当压力总和超过軸的实际自重时,軸就开始脱离軸承底部,飄浮在油的上面。由于只有一个油楔存在,所以就不能保証軸在不同徑向方向上有相同的剛度,并且随外力的变化而变化,軸心位置也在軸承內产生位移耸馆S心位置
A single-wedge and multi-wedge oil film bearing comparison Single-wedge oil film bearing is a basic type of plain bearings, its structure can be divided into three types: (1) both inside and outside cylindrical; (2) within The hole is cylindrical and conical on the outside; (3) Contrary to the second one. Grinding wheel bearings in the past mostly made in the second form, in order to adjust the gap. When the shaft is at a standstill, the shaft comes into contact with the bearing in the vertical direction due to the self-weight of the shaft. When the shaft rotates, the lubricating oil adheres to the surface of the shaft and enters into the gap. Under the action of the oil wedge, pressure is generated. When the total pressure exceeds the actual weight of the shaft, the shaft begins to detach from the bottom of the bearing and float on the oil. Because there is only one oil wedge, there is no guarantee that the shaft will have the same stiffness in different radial directions and will change with the change of external force, and the axial position will also be displaced in the bearing.