IMPELLER, ROTARY MACHINE, AND IMPELLER MANUFACTURING METHOD
PROBLEM TO BE SOLVED: To provide an impeller, a rotary machine, and an impeller manufacturing method capable of improving channel shape quality and facilitating attaching/detaching of the impeller to/from a rotary shaft.SOLUTION: An impeller includes: a disc section 30 including at least a first end...
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Main Authors | , |
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Format | Patent |
Language | English Japanese |
Published |
04.06.2015
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide an impeller, a rotary machine, and an impeller manufacturing method capable of improving channel shape quality and facilitating attaching/detaching of the impeller to/from a rotary shaft.SOLUTION: An impeller includes: a disc section 30 including at least a first end portion 33 in an axis O direction fixed to a rotary shaft 5 rotating about the axis O, and extending radially outward from a second end portion 36 in the axis O direction opposite to the first end portion 33; a blade section 40 provided to protrude from the disc section 30 toward the first end portion 33; and a cover section 50 provided integrally with the blade section 40 and covering the blade section 40 from the first end portion 33, the disk section 30 including a first member 31 and a second member 32 obtained by dividing the disc section 30 by half on a division surface B orthogonal to an axis O radially inward of the blade section 40, the first member 31 and the second member 31 being bonded to each other on the division surface B.
【課題】流路形状の品質を向上することができるとともに、回転軸に対して容易に着脱することが可能なインペラ、回転機械、および、インペラの製造方法を提供する。【解決手段】軸線O回りに回転する回転軸5に対して、少なくとも軸線O方向における第一端部33側が固定され、第一端部33側とは反対側となる軸線O方向における第二端部36側から径方向外側に向かって延びるディスク部30と、ディスク部30から第一端部33側に突出して設けられるブレード部40と、ブレード部40に対して一体的に設けられるとともに、ブレード部40を第一端部33側から覆うカバー部50と、を備え、ディスク部30は、ブレード部40よりも径方向内側で、軸線Oに直交する分割面Bにより軸線O方向に2分割された第一部材31と第二部材32とを備え、第一部材31と第二部材32とが分割面Bで接合されていることを特徴とする。【選択図】図3 |
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Bibliography: | Application Number: JP20130240921 |