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41. 发明专利

JPS5970812A Movable vane operating mechanism 失效
标题翻译：可移动的风扇操作机构
公开(公告)号：JPS5970812A
公开(公告)日：1984-04-21
申请号：JP17986782
申请日：1982-10-15
申请人： Hitachi Ltd , Hitachi Techno Eng Co Ltd
发明人： TANJI MASATAKA , ISHIKAWA YOSHIHIDE
IPC分类号： F04D29/18 , F01D7/00 , F03B3/14
CPC分类号： F01D7/00 , F05D2260/74 , F05D2260/76 , Y02E10/223
摘要： PURPOSE:To prolong the life of bearings used in a movable vane operating mechanism by allowing a thrust bearing to rotate only during operation for vane angle, and also to provide possibility if use of bearings with low load capacity. CONSTITUTION:If the vane angle shall be kept constant, a worm 12 is fixed in a position shown by the solid line while a set screw 14 is inserted in a longitudinal groove 9a so as not to allow relative rotation of bearing housings 9, 7, and a brake drum 15 is pressed to a disc 20 on the spindle 1 to allow the housing 9, 7 to rotate together with the spindle 1. Thus the upper and lower bearings 4, 5 receive the vane operating force statically. In order to change the vane angle, the drum 15 is released from the disc 20, and the housings 9, 7 are bracked by a pin stop screw 14 and stop. Then the worm is put in meshing with the wheel 11, the screw 14 drawn off, and the wheel turned, and now the outer bearing housing 7 is rotated to make upward or downward movement. Thus the operational rod 2 is moved up or down to change the vane angle.
摘要翻译：目的：通过允许推力轴承仅在叶片角度操作期间旋转，延长可动叶片操作机构中使用的轴承寿命，并且如果使用低负载能力的轴承，则可提供可能性。构成：如果叶片角度保持恒定，则将蜗杆12固定在实线所示的位置，同时将固定螺钉14插入纵向槽9a中，以不允许轴承壳体9,7的相对旋转，并且制动鼓15被压到主轴1上的盘20上，以允许壳体9,7与主轴1一起旋转。因此，上下轴承4,5静态地接收叶片操作力。为了改变叶片角度，将滚筒15从盘20中释放出来，壳体9,7由销止动螺丝14包围并停止。然后将蜗杆与轮11啮合，螺丝14被拉出，轮转动，现在外轴承壳7旋转以向上或向下移动。因此，操作杆2向上或向下移动以改变叶片角度。

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