CN114645899A - 具有滑动节段的滑动轴承 - Google Patents
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Abstract
本发明涉及一种具有第一轴承部件和第二轴承部件的滑动轴承,所述第一轴承部件和第二轴承部件布置成可绕旋转轴线(RA)沿旋转方向(RR)相对于彼此旋转,其中在第一轴承部件和第二轴承部件之间布置有至少两个滑动节段(1),其中,至少两个滑动节段(1)分别具有用于将滑动节段(1)固定在第一轴承部件和/或第二轴承部件上的支承结构(2)以及用于在第二轴承部件和/或第一轴承部件上滑动接触滑动节段(1)的滑动面(3),其中滑动面(3)沿旋转方向(RR)具有前进入边缘(4)和后退出边缘(5),其中所述滑动面(3)具有与前进入边缘(4)直接相邻布置的配油槽(6),以及其中,滑动节段(1)具有通孔(7),用于向配油槽(6)供油,该通孔优选从支承结构(2)的径向外表面(21)延伸至配油槽(6)和/或滑动面(3)。
Description
技术领域
本发明涉及一种滑动轴承,其具有第一轴承部件和第二轴承部件,第一轴承部件和第二轴承部件布置成可绕旋转轴线沿旋转方向相对于彼此旋转,其中至少两个滑动节段布置在第一轴承部件和第二轴承部件之间。
背景技术
在止推轴承中,通常使用具滑动能力元件,这些元件通过周缘间隙从后面供应润滑剂。这种润滑剂供应可能会在通常是圆形的节段圆周上变化,并且无法精确计算或根本不能够调整,原因在于,间隙的几何形状受不同因素影响,例如这些节段的制造公差、操作状态或自身重量。以这种方式,在传统供油系统中,出现高损耗的油流,原因在于,大部分的油在技术上没被利用就在这些节段的侧面流走了。特别是,由于风力发电机传动系的设计相关倾斜度通常与水平面呈5°-6°,因此,还无法保证油会进入履带盘上,即滑动面会完全不被弄湿。润滑不足和磨损增加是由此产生的后果。
流体静力上升通常通过凹部或环形凹槽实现。该环槽的直径约为节段直径的50%-60%。较大的直径会对流体动力压力分布产生负面影响,从而限制节段的支承能力。对于这些尺寸,流体静力上升压力增加到200巴以上,这是应该避免的。
发明内容
因此,本发明的目的是提供一种滑动轴承,该滑动轴承在第一轴承部件和第二轴承部件之间布置有滑动节段,其中优化了轴承部件和滑动节段之间的润滑。
该目的通过根据权利要求1的特征组合来实现。
根据本发明,提出了一种滑动轴承,其具有第一轴承部件和第二轴承部件,所述第一轴承部件和第二轴承部件布置成可绕旋转轴线沿旋转方向相对于彼此旋转。第一轴承部件与第二轴承部件之间布置有至少两个滑动节段。至少两个滑动节段分别具有支承结构和滑动面,支承结构用于将滑动节段固定在第一轴承部件和/或第二轴承部件处,滑动面用于与第二轴承部件和/或第一轴承部件处的滑动节段进行滑动接触。此外,滑动面在旋转方向上具有前进入边缘和后退出边缘,并且包括与前进入边缘直接相邻布置的配油凹槽。此外,滑动节段具有用于向配油凹槽供油的通孔,该通孔优选地从支承结构的径向外表面延伸到配油凹槽或滑动面。
这样做的优点是,通过滑动轴承向具滑动能力元件直接供应润滑剂,来确保并优化滑动轴承的润滑操作。所输送的润滑剂量对具滑动能力元件的使用寿命起决定性作用。这可以通过使用直接供应来精确设计、计算、影响和增加。滑动面通过节段直接供应到所需位置,特别是滑动节段的滑动面。上述供应直接供给到节段,并可以通过体积流量减少到润滑间隙的实际需求。因此,即使在低圆周速度和几何上不利的布置(例如“架空”布置)下,也可以有针对性地供油。此外,可以为每个单独的节段单独供油。通过节省原本需要的夹圈,可以将具滑动能力的节段设计成更大,从而可以实现更高的轴承支承能力。此外,在另一个有利的实施例中,用于向配油凹槽供油的通孔可以直接或间接地与高压供油连接,以实现流体静力上升。
在一个有利的实施例中规定,滑动节段的滑动面设计成基本圆形。这有利于润滑剂的分配以及前进入边缘上配油凹槽的布置或形成。
滑动轴承优选设计如下:滑动面的配油凹槽设计为弧形,其中配油凹槽优选张开90°至180°的角度。由于配油凹槽呈拱形,这最佳地匹配进入边缘,由此改善了滑动面和/或滑动节段的润滑。另外,鉴于滑动轴承的各种应用场景,如下月牙形配油凹槽也是有利的:配油凹槽在中央区域的直径大于两端直径。
在本发明的一个实施例中规定,滑动面具有另一配油凹槽,该配油凹槽直接邻近后部退出边缘布置。由此进一步改善了在滑动节段的滑动面上的润滑剂分布。
此外,如下实施例是优选的:滑动面的所述另一配油凹槽设计为弧形,所述另一配油凹槽优选张开90°至180°的角度。与配油凹槽相对应,弧形的另一配油凹槽优化了滑动面和/或滑动节段的润滑。此外,月牙形的配油凹槽同样是可能的。
在另一个有利的变型中,根据本发明规定,在配油凹槽和另一配油凹槽之间的滑动面的边缘处分别形成凹凹槽间隙。由于凹槽是间断的,对应于凹槽数量例如形成两个、三个或四个圆弧形凹槽。这会导致凹槽之间的支承压力分布在朝向段的中间,从而导致流体静力上升。与封闭的环形流体静力凹槽相比,支承压力损失可忽略不计。
在一个实施例变体中,根据本发明的滑动轴承设计为,配油凹槽和另一配油凹槽借助油路连接。有利的是,当向两个凹槽供应高压油时,实现了集成的流体静力上升。
在本发明滑动轴承的一个替代实施例中,进一步规定,滑动面的配油凹槽沿着滑动面的整个边缘形成整个圆周。以这种方式,保证了润滑剂向滑动节段的整个滑动面的良好供应。
在本发明的另一替代实施例中,滑动面的配油凹槽由多个开口形成,优选由多个钻孔形成。配油凹槽的开口呈弧形布置,优选相互间隔排成一排。在此有利的是,润滑剂可以通过相应的开口施加到滑动面上,并且以此方式,润滑剂分布是均匀的或者可以借助开口的布置和/或数量来适应相应的应用场景。
在一个有利的示例性实施例中规定,开口分别具有用于向配油凹槽供油的通孔,该通孔从支承结构的径向外表面延伸到配油凹槽或滑动面。由此实现给配油凹槽和/或滑动面供应润滑剂。
在另一个有利的实施例中,根据本发明规定:在支承结构的径向外表面上形成通道,用于用油冲洗支承结构和/或用于将油供应到配油凹槽。这样做的优点是,在滑动节段的外表面上冲洗滑动节段的油通过开口到达滑动面并且可以根据开口的布置和数量分布在滑动节段的滑动面上。
本发明滑动轴承的另一替代实施例规定,滑动面设计为矩形或正方形并且滑动面的配油凹槽设计为直线形的。以这种方式形成的滑动轴承或以这种方式设计的配油凹槽在某些应用场景中改善了轴承部件与滑动节段之间的润滑。
在本发明的一个优选实施例中,所述支承结构的外表面上形成有防转锁,特别是螺栓形防转锁。以此方式,通过滑动轴承的相应形成的配对物,在操作期间防止滑动节段的旋转。
在一个实施例中,根据本发明的滑动轴承设计为轴向轴承,特别是用于风力发电设备的传动系的轴向轴承。
附图说明
本发明的其它有利改进在从属权利要求中表征,和/或在下文参照附图结合对本发明优选实施例的描述更详细地示出。
图1示出具有一个弧形配油凹槽的滑动轴承的滑动节段的透视图,
图2示出具有两个弧形配油凹槽的滑动轴承的滑动节段的透视图,
图3示出具有环形配油凹槽的滑动轴承的滑动节段的透视图,以及
图4示出具有由开口形成的配油凹槽的滑动轴承的滑动节段的透视图。
具体实施方式
图1示出具有一个弧形配油凹槽6的滑动轴承的滑动节段1的透视图。滑动轴承设计为用于风力发电设备传动系的轴向轴承。滑动轴承包括多个滑动节段1,并且各个滑动节段1布置在公共分度圆上并一起形成轴向轴承。
滑动轴承包括第一轴承部件和第二轴承部件,它们被布置成可绕旋转轴线沿旋转方向相对于彼此旋转。多个滑动节段1布置在第一轴承部件和第二轴承部件之间。
多个滑动节段1中的相应滑动节段1分别具有用于将滑动节段1固定在第一轴承部件和/或第二轴承部件上的支承结构2和用于滑动节段1在第二轴承部件和、或第一轴承部件上滑动接触的滑动面3。
滑动节段1的滑动面3设计成基本圆形并且在旋转方向上具有前进入边缘4和后退出边缘5。
此外,滑动面3具有与前进入边缘4直接相邻布置的配油凹槽6。进一步地,滑动面3的配油凹槽6设计为弧形,其张开的角度约为90°。
滑动节段1具有通孔7,用于向配油凹槽6供油,该通孔从支承结构2的径向外表面21延伸至配油凹槽6或滑动面3。另外,支承结构2的径向外表面21上形成有通道22,用于用油冲洗支承结构2或用于向配油凹槽6供油。另外,支承结构2的径向外表面21上形成有螺栓状的防转锁8。
由于滑动节段在下面的附图描述部分中具有基本相同的特征,因此下面将仅讨论基本区别。
图2示出具有两个弧形配油凹槽6、13的滑动轴承的滑动节段1的透视图。滑动节段1的滑动面3具有另一配油凹槽13,该另一配油凹槽直接与后退出边缘5直接相邻布置。滑动面3的另一配油凹槽13呈月牙形且张开角度90°。
在配油凹槽6和另一配油凹槽13之间的滑动面3的边缘处,分别形成凹凹槽间隙10。另外,配油凹槽6和另一配油凹槽13借助油路连接。
图3示出具有环形配油凹槽6的滑动轴承的滑动节段1的透视图,该配油凹槽沿滑动面3的整个边缘在其整个圆周上延伸。此外,滑动节段1包括用于向配油凹槽6供油的通孔7,通孔从支承结构2的径向外表面21延伸至配油凹槽6或滑动面3。
此外,图4示出滑动轴承的滑动节段1的透视图,其具有由开口11形成的配油凹槽6。滑动面3的配油凹槽6由多个开口11、特别是由多个钻孔形成。另外,配油凹槽6的开口11呈弧形布置并相互间隔排成一排。
进一步地,开口11分别具有用于向配油凹槽6供油的通孔7,该通孔从支承结构2的径向外表面21延伸至配油凹槽6或滑动面3。
本发明的实施不限于上面指定的优选示例性实施例。相反,即使在根本不同的设计的情况下,也可以想到使用所示解决方案的多种变型。
Claims (15)
1.具有第一轴承部件和第二轴承部件的滑动轴承,所述第一轴承部件和第二轴承部件布置成可绕旋转轴线(RA)沿旋转方向(RR)相对于彼此旋转,
其中在第一轴承部件和第二轴承部件之间布置有至少两个滑动节段(1),
其中,所述至少两个滑动节段(1)分别具有支承结构(2)以及滑动面(3),支承结构(2)用于将滑动节段(1)固定在第一轴承部件和/或第二轴承部件上,所述滑动面(3)用于在第二轴承部件和/或第一轴承部件上滑动接触滑动节段(1),
其中所述滑动面(3)沿旋转方向(RR)具有前进入边缘(4)和后退出边缘(5),
其中所述滑动面(3)具有与所述前进入边缘(4)直接相邻布置的配油凹槽(6),以及
其中,所述滑动节段(1)具有通孔(7),用于向所述配油凹槽(6)供油,所述通孔优选从所述支承结构(2)的径向外表面(21)延伸至所述配油凹槽(6)和/或所述滑动面(3)。
2.如权利要求1或2所述的滑动轴承,其特征在于,所述滑动节段(1)的滑动面(3)设计成基本圆形。
3.根据权利要求1至2中任一项所述的滑动轴承,其特征在于,所述滑动面(3)的配油凹槽(6)设计为弧形,其中所述配油凹槽(6)优选地张开角度90°至180°。
4.根据前述权利要求中任一项所述的滑动轴承,其特征在于,所述滑动面(3)具有另一配油凹槽(13),所述另一配油凹槽(13)直接与所述后出口边缘(5)相邻布置。
5.根据权利要求4所述的滑动轴承,其特征在于,所述滑动面(3)的所述另一配油凹槽(13)设计为弧形,其中所述另一配油凹槽(13)优选地张开角度90°至180°。
6.根据权利要求4或5中任一项所述的滑动轴承,其特征在于,滑动面(3)的边缘在所述配油凹槽(6)和所述另一配油凹槽(13)之间分别形成凹槽间隙(10)。
7.根据前一权利要求所述的滑动轴承,其特征在于,所述配油凹槽(6)和所述另一配油凹槽(13)借助油路连接。
8.根据权利要求1至2中任一项所述的滑动轴承,其特征在于,所述滑动面(3)的配油凹槽(6)沿所述滑动面(3)的整个边缘形成整个圆周。
9.根据权利要求1至2中任一项所述的滑动轴承,其特征在于,所述滑动面(3)的配油凹槽(6)由多个开口(11)形成,优选地由多个钻孔形成,所述配油凹槽(6)的开口(11)布置成弧形,并且优选彼此间隔排成一排。
10.根据前一权利要求所述的滑动轴承,其特征在于,所述开口(11)分别具有用于向所述配油凹槽(6)供油的通孔(7),所述通孔(7)从所述支承结构(2)的径向外表面(21)延伸至所述配油凹槽(6)和/或所述滑动面(3)。
11.根据前述权利要求中任一项所述的滑动轴承,其特征在于,在所述支承结构(2)的径向外表面(21)上形成通道(22),所述通道(22)用于用油冲洗所述支承结构(2)或用于向所述配油凹槽(6)供油。
12.根据权利要求1所述的滑动轴承,其特征在于,所述滑动面(3)设计为矩形或正方形,并且所述滑动面(3)的配油凹槽(6)设计为直线形。
13.根据权利要求1所述的滑动轴承,其特征在于,所述滑动面(3)设计为圆环形或圆环段形,并且所述滑动面(3)的配油凹槽(6)设计为直的和/或弧形的。
14.根据前述权利要求中任一项所述的滑动轴承,其特征在于,所述支承结构(2)的径向外表面(21)上形成有防转锁(8),特别是螺栓形防转锁(8)。
15.根据前述权利要求中任一项所述的滑动轴承,其特征在于,所述滑动轴承设计为轴向轴承,特别是用于风力发电设备的传动系的轴向轴承。
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