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1. 发明公开

EP2751431A2 VARIABLE PITCH FANS 审中-公开
标题翻译： LÜFTERMIT VERSTELLBARER NEIGUNG
公开(公告)号：EP2751431A2
公开(公告)日：2014-07-09
申请号：EP12753778.5
申请日：2012-08-21
申请人： Solyvent Flakt AB
发明人： SHEARD, Anthony Geoffrey , RHODEN, Andreas
IPC分类号： F04D29/05 , F04D29/063 , F04D29/36 , F16C19/10 , F16C33/37 , F16C33/66
CPC分类号： F04D29/36 , F01D25/16 , F01D25/162 , F01D25/18 , F04D29/05 , F04D29/056 , F04D29/06 , F04D29/063 , F04D29/323 , F04D29/329 , F04D29/34 , F16C19/10 , F16C19/20 , F16C33/37 , F16C33/3706 , F16C33/3713 , F16C33/372 , F16C33/374 , F16C33/6614 , F16C33/6629 , F16C2360/46
摘要： An axial air movement fan having a plurality of variable pitch fan blades (2), extending radially from a hub (4) rotatable about a main axis (3), each blade (2) further being pivotable about its radial axis to vary the blade pitch. The blades (2) each are mounted on an associated bearing (5) mounted on said hub, the bearing comprising a ball bearing having a first radially inner race (25) fast the blade (2) and a second radially outer race (26) rotationally fast to the hub (4). The balls (14) in the bearing are separated by separators (15), each separator being generally cylindrical and having its cylindrical axis coaxial with the orbital axis (22) of the orbit of the balls (14) and being adapted to rotate about the said orbital axis (22), the side faces of the separator each having a part spherical recess (16) adapted to receive a ball (14). Rotation of the separator (15) about the orbital axis (22) is such as to entrain lubricant in the bearing and to bias the lubricant from adjacent the outer race (26) over the balls (14) towards the inner race (25).
摘要翻译：一种轴向空气运动风扇，具有多个可变节距风扇叶片（2），从可围绕主轴线（3）旋转的轮毂（4）径向延伸，每个叶片（2）还可围绕其径向轴线枢转以改变叶片沥青。叶片（2）各自安装在安装在所述轮毂上的相关轴承（5）上，所述轴承包括具有快速所述叶片（2）的第一径向内座圈（25）和第二径向外座圈（26）的滚珠轴承，旋转地快速到轮毂（4）。轴承中的滚珠（14）由分离器（15）分开，每个分离器通常是圆柱形的，并且其圆柱轴线与滚珠（14）的轨道的轨道轴线（22）同轴，并且适于围绕所述轨道轴线（22），所述隔板的侧面具有适于容纳球（14）的部分球形凹部（16）。分离器（15）围绕轨道轴线（22）的旋转使得将润滑剂夹带在轴承中并使润滑剂从外座圈（26）上靠近滚珠（14）偏向内座圈（25）。

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