JP2018112128A - Centering jig and centering method of rotor blade variable axial flow fan - Google Patents

Centering jig and centering method of rotor blade variable axial flow fan Download PDF

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JP2018112128A
JP2018112128A JP2017003080A JP2017003080A JP2018112128A JP 2018112128 A JP2018112128 A JP 2018112128A JP 2017003080 A JP2017003080 A JP 2017003080A JP 2017003080 A JP2017003080 A JP 2017003080A JP 2018112128 A JP2018112128 A JP 2018112128A
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centering
oil cylinder
base plate
axial flow
flow fan
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JP6761356B2 (en
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佑司 馬庭
Yuji Maniwa
佑司 馬庭
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Chuden Plant Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a centering jig of a rotor blade variable axial flow fan which enables centering of an oil cylinder to be accurately performed in the rotor blade variable axial flow fan, and to provide a centering method.SOLUTION: A centering jig 10 of a rotor blade variable axial flow fan includes: a base plate 11 fixed to a flange of a disc wheel of the rotor blade variable axial flow fan; a fixing bolt 12 which passes through a fixing bolt hole 11a of the base plate 11 and threadedly engages with a screw hole of the flange to fix the base plate 11 to the flange; and an adjustment bolt 13 which passes through an adjustment bolt hole 11b of the base plate 11 and presses a piece receiver of an arm of an oil cylinder disposed at the inner side of the disc wheel to adjust a position of the oil cylinder.SELECTED DRAWING: Figure 1

Description

本発明は、動翼可変軸流ファンの芯出治具及び芯出方法に関する。   The present invention relates to a centering jig and a centering method for a moving blade variable axial fan.

脱硫装置等の通風機などでは、動翼可変軸流ファン（以下、単に軸流ファンともいう）が用いられていることがある（例えば、特許文献１、２）。軸流ファンの動翼の可変機構として、図８（Ａ）、（Ｂ）に示す構造の油圧式の可変機構がある。   In a ventilator such as a desulfurization apparatus, a moving blade variable axial fan (hereinafter, also simply referred to as an axial fan) may be used (for example, Patent Documents 1 and 2). As a variable mechanism of a moving blade of an axial fan, there is a hydraulic variable mechanism having a structure shown in FIGS.

この軸流ファンでは、油筒４０が主軸２０の軸方向に移動する。例えば、図８（Ａ）に示すように、油圧ピストン７０と油筒４０で囲われた油室Ａに作動油が供給され、油圧ピストン７０と翼車３０と油筒蓋８０で囲われる油室Ｂから作動油が排出されることで、図８（Ｂ）に示すように、油筒４０が主軸２０に沿って移動する。また、油筒４０には２段階に屈曲した動翼軸アーム５０の一端が回動可能に設置されており、更に、動翼軸アーム５０の他端には、動翼１００が回動可能に設置されていることから、油筒４０が移動すると、動翼軸アーム５０、及び、動翼１００が回転する仕組みである。また、作動油の供給、排出を上記と逆にすると、図８（Ｂ）に示す状態から図８（Ａ）に示す状態に戻る。   In this axial flow fan, the oil cylinder 40 moves in the axial direction of the main shaft 20. For example, as shown in FIG. 8A, hydraulic oil is supplied to the oil chamber A surrounded by the hydraulic piston 70 and the oil cylinder 40, and the oil chamber surrounded by the hydraulic piston 70, the impeller 30 and the oil cylinder lid 80. As the hydraulic oil is discharged from B, the oil cylinder 40 moves along the main shaft 20 as shown in FIG. Further, one end of a blade axis arm 50 bent in two stages is rotatably installed on the oil cylinder 40, and the blade 100 is also rotatable on the other end of the blade axis arm 50. Since it is installed, when the oil cylinder 40 moves, the moving blade shaft arm 50 and the moving blade 100 rotate. Moreover, if supply and discharge | emission of hydraulic fluid are made reverse to the above, it will return to the state shown to FIG. 8 (A) from the state shown to FIG. 8 (B).

このような油圧式の動翼可変機構を有する軸流ファンの場合、油筒４０と主軸２０との摺動面や、油圧ピストン７０と油筒４０との摺動面など、作動油の漏れを防止するためのシール部材等の消耗品が多く使われていることもあり、メンテナンス作業が欠かせない。メンテナンス作業では、軸流ファンの分解、組み立てが行われる。軸流ファンを組み立てる際、主軸２０に取り付けた翼車３０の内側への油筒４０の取り付け、油筒４０内部への油圧ピストン７０の取り付け後、動翼軸アーム５０、動翼１００を順次取り付けて組み立てられる。   In the case of an axial fan having such a hydraulic moving blade variable mechanism, hydraulic fluid leaks such as the sliding surface between the oil cylinder 40 and the main shaft 20 and the sliding surface between the hydraulic piston 70 and the oil cylinder 40. Maintenance work is indispensable because consumables such as sealing members are often used. In maintenance work, the axial fan is disassembled and assembled. When assembling the axial fan, after attaching the oil cylinder 40 to the inside of the impeller 30 attached to the main shaft 20 and attaching the hydraulic piston 70 to the inside of the oil cylinder 40, the blade axis arm 50 and the blade 100 are sequentially attached. Assembled.

油筒４０の中心部には主軸２０が通過する孔があり、この孔を通じて油筒４０を主軸２０に差し込んで翼車３０の内側に配置し、油筒４０と主軸２０との中心位置を合わせる芯出しの作業が行われる。   There is a hole through which the main shaft 20 passes in the center of the oil cylinder 40, and the oil cylinder 40 is inserted into the main shaft 20 through this hole and arranged inside the impeller 30, so that the center positions of the oil cylinder 40 and the main shaft 20 are aligned. Centering work is performed.

特開平７−４２６９７号公報JP 7-42697 A 特開２００４−８４５６３号公報JP 2004-84563 A

芯出しの作業は、作業者が感覚をたよりに行っており、作業に多大な時間を要していた。また、油筒４０の芯出しが不十分である場合、油筒４０内部に油圧ピストン７０を組み込む際、油圧ピストン７０が油筒４０に干渉して取り付けられず、再度分解が必要になる場合もある。   The centering work is performed by the operator according to his senses, and the work takes a lot of time. In addition, when the centering of the oil cylinder 40 is insufficient, when the hydraulic piston 70 is assembled inside the oil cylinder 40, the hydraulic piston 70 may not be attached due to interference with the oil cylinder 40 and may need to be disassembled again. is there.

本発明は、上記事項に鑑みてなされたものであり、その目的とするところは、動翼可変軸流ファンにおける油筒の芯出しを精度よく行い得る動翼可変軸流ファンの芯出治具および芯出方法を提供することにある。   The present invention has been made in view of the above-described matters, and an object of the present invention is to provide a centering jig for a moving blade variable axial fan that can accurately center an oil cylinder in a moving blade variable axial fan. And providing a centering method.

本発明の第１の観点に係る動翼可変軸流ファンの芯出治具は、
動翼可変軸流ファンの翼車のフランジに固定されるベースプレートと、
前記ベースプレートの固定ボルト孔を通り、前記フランジのネジ孔に螺合して前記ベースプレートを前記フランジに固定する固定ボルトと、
前記ベースプレートの調節ボルト孔を通り、前記翼車の内側に取り付けられた油筒のアーム用コマ受けを押して前記油筒の位置を調節する調節ボルトと、を備える、
ことを特徴とする。 The centering jig of the moving blade variable axial fan according to the first aspect of the present invention is:
A base plate fixed to a flange of a rotor blade of a moving blade variable axial flow fan;
A fixing bolt that passes through the fixing bolt hole of the base plate and is screwed into the screw hole of the flange to fix the base plate to the flange;
An adjustment bolt that passes through the adjustment bolt hole of the base plate and adjusts the position of the oil cylinder by pushing an arm piece receiver for an oil cylinder attached to the inside of the impeller.
It is characterized by that.

また、前記固定ボルト孔と前記調節ボルト孔との中心間距離が、前記フランジのネジ孔の中心から前記油筒に設置される前記アーム用コマ受けまでの平面距離よりも長いことが好ましい。   Moreover, it is preferable that the center-to-center distance between the fixing bolt hole and the adjusting bolt hole is longer than the plane distance from the center of the screw hole of the flange to the arm piece receiver installed on the oil cylinder.

本発明の第２の観点に係る動翼可変軸流ファンの芯出方法は、
動翼可変軸流ファンの翼車の内側に油筒を配置し、
本発明の第１の観点に係る動翼可変軸流ファンの芯出治具を用いて前記油筒の芯出しを行う、
ことを特徴とする。 The centering method of the rotor blade variable axial fan according to the second aspect of the present invention is as follows:
An oil cylinder is arranged inside the impeller of the moving blade variable axial flow fan,
The oil cylinder is centered using a centering jig of the moving blade variable axial fan according to the first aspect of the present invention,
It is characterized by that.

また、複数の前記芯出治具を用いることが好ましい。   It is preferable to use a plurality of the centering jigs.

本発明によれば、動翼可変軸流ファンにおける油筒の芯出しを精度よく行い得る動翼可変軸流ファンの芯出治具および芯出方法を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the centering jig | tool and centering method of a moving blade variable axial flow fan which can perform centering of the oil cylinder in a moving blade variable axial flow fan accurately can be provided.

図１（Ａ）は芯出治具の斜視図、図１（Ｂ）は芯出治具の断面図である。FIG. 1A is a perspective view of a centering jig, and FIG. 1B is a cross-sectional view of the centering jig. 図２（Ａ）、（Ｂ）は動翼可変軸流ファンの組み立ての様子を示す断面図である。FIGS. 2A and 2B are cross-sectional views showing how the moving blade variable axial fan is assembled. 図３（Ａ）、（Ｂ）は動翼可変軸流ファンの組み立ての様子を示す断面図である。FIGS. 3A and 3B are cross-sectional views showing how the moving blade variable axial fan is assembled. 図３（Ｂ）を矢印方向に見た芯出治具を取り付けた状態を示す図である。It is a figure which shows the state which attached the centering jig which looked at FIG.3 (B) in the arrow direction. 動翼可変軸流ファンの組み立ての様子を示す断面図である。It is sectional drawing which shows the mode of an assembly of a moving blade variable axial flow fan. 図６（Ａ）、（Ｂ）は動翼可変軸流ファンの組み立ての様子を示す断面図である。6 (A) and 6 (B) are cross-sectional views showing how the moving blade variable axial fan is assembled. 図７（Ａ）、（Ｂ）は動翼可変軸流ファンの組み立ての様子を示す断面図である。FIGS. 7A and 7B are cross-sectional views showing how the moving blade variable axial fan is assembled. 図８（Ａ）、（Ｂ）は動翼可変軸流ファンの動翼回転機構を説明する断面図である。8A and 8B are cross-sectional views for explaining the moving blade rotating mechanism of the moving blade variable axial fan.

以下、図を参照しつつ、本実施の形態に係る芯出治具１０について説明する。本実施の形態に係る芯出治具１０は、動翼可変軸流ファンの組み立ての際に用いられるものであり、より詳細には、軸流ファンの主軸２０に取り付けられた油筒４０の芯出しに用いられる。   Hereinafter, the centering jig 10 according to the present embodiment will be described with reference to the drawings. The centering jig 10 according to the present embodiment is used when assembling the rotor blade variable axial fan, and more specifically, the center of the oil cylinder 40 attached to the main shaft 20 of the axial fan. Used for taking out.

芯出治具１０は、図１（Ａ）に示すように、ベースプレート１１、固定ボルト１２、調節ボルト１３、固定ナット１４を備える。   As shown in FIG. 1A, the centering jig 10 includes a base plate 11, a fixing bolt 12, an adjusting bolt 13, and a fixing nut 14.

ベースプレート１１は軸流ファンの翼車３０のフランジ３１のフランジ面に固定される板状体である。ベースプレート１１は、使用時に湾曲や破断しない程度の機械的強度を有する合金等から形成されている。   The base plate 11 is a plate-like body fixed to the flange surface of the flange 31 of the impeller 30 of the axial fan. The base plate 11 is formed of an alloy or the like having a mechanical strength that does not curve or break during use.

ベースプレート１１には、固定ボルト１２及び調節ボルト１３がそれぞれ貫通する固定ボルト孔１１ａ、調節ボルト孔１１ｂが形成されている。固定ボルト孔１１ａ、調節ボルト孔１１ｂの径は、それぞれ固定ボルト１２、調節ボルト１３の頭部より小さく、ネジ部の径より大きく設定される。   The base plate 11 is formed with a fixing bolt hole 11a and an adjusting bolt hole 11b through which the fixing bolt 12 and the adjusting bolt 13 pass, respectively. The diameters of the fixing bolt hole 11a and the adjusting bolt hole 11b are set smaller than the heads of the fixing bolt 12 and the adjusting bolt 13, respectively, and larger than the diameter of the threaded portion.

また、ベースプレート１１には、調節ボルト孔１１ｂに対応する位置に固定ナット１４が設置されている。固定ナット１４は、溶接等、ベースプレート１１から外れないよう設置されている。固定ナット１４は、調節ボルト１３のネジ部と螺合するネジ孔を有している。これにより、調節ボルト１３を回すことで、調節ボルト１３はベースプレート１１に対して調節ボルト孔１１ｂの軸方向に移動可能である。   The base plate 11 is provided with a fixing nut 14 at a position corresponding to the adjustment bolt hole 11b. The fixing nut 14 is installed so as not to be detached from the base plate 11 by welding or the like. The fixing nut 14 has a screw hole to be screwed with the screw portion of the adjustment bolt 13. Thereby, the adjustment bolt 13 can be moved in the axial direction of the adjustment bolt hole 11 b with respect to the base plate 11 by turning the adjustment bolt 13.

固定ボルト孔１１ａと調節ボルト孔１１ｂとを結ぶ方向の長さは、後述する軸流ファンの翼車のフランジ３１とアーム用コマ受け６０の間よりも長く設定される。また、固定ボルト孔１１ａと調節ボルト孔１１ｂとの中心間距離Ｌは、後述する翼車３０のフランジ３１のネジ孔３２の中心から油筒４０に設置されるアーム用コマ受け６０までの平面距離よりも長く設定される。   The length in the direction connecting the fixing bolt hole 11a and the adjusting bolt hole 11b is set longer than between the flange 31 of the impeller of the axial fan and the arm piece receiver 60 described later. The center-to-center distance L between the fixing bolt hole 11a and the adjusting bolt hole 11b is a planar distance from the center of the screw hole 32 of the flange 31 of the impeller 30 described later to the arm piece receiver 60 installed in the oil cylinder 40. Is set longer.

固定ボルト１２のネジ部の長さＨ１は、ベースプレート１１の厚さよりも十分に長く、翼車３０のフランジ３１に形成されたネジ孔３２の深さとベースプレート１１の厚さの和より短く設定される。また、調節ボルト１３のネジ部の長さＨ２は、ベースプレート１１が翼車３０のフランジ３１に固定された状態で、ベースプレート１１の厚さとベースプレート１１からアーム用コマ受け６０までの垂直距離の和よりも長く設定される。   The length H1 of the screw portion of the fixing bolt 12 is set to be sufficiently longer than the thickness of the base plate 11 and shorter than the sum of the depth of the screw hole 32 formed in the flange 31 of the impeller 30 and the thickness of the base plate 11. . The length H2 of the threaded portion of the adjusting bolt 13 is determined by the sum of the thickness of the base plate 11 and the vertical distance from the base plate 11 to the arm piece receiver 60 when the base plate 11 is fixed to the flange 31 of the impeller 30. Is also set longer.

続いて、軸流ファンの芯出方法について説明する。図２（Ａ）は、主軸２０に翼車３０が据え付けられた状態を示している。この主軸２０に、図２（Ｂ）に示すように、油筒４０を設置する。油筒４０の中心部には主軸２０が通る孔があるので、この孔に主軸２０が差し込まれることで、油筒４０が翼車３０の内側に配置される。   Next, a method for centering the axial fan will be described. FIG. 2A shows a state where the impeller 30 is installed on the main shaft 20. An oil cylinder 40 is installed on the main shaft 20 as shown in FIG. Since there is a hole through which the main shaft 20 passes in the center of the oil cylinder 40, the oil cylinder 40 is disposed inside the impeller 30 by inserting the main shaft 20 into this hole.

図３（Ａ）に示すように、油筒４０にアーム用コマ５１、動翼軸アーム５０を取り付ける。そして、油筒４０にアーム用コマ受け６０を設置する。   As shown in FIG. 3A, the arm piece 51 and the blade axis arm 50 are attached to the oil cylinder 40. Then, an arm piece receiver 60 is installed in the oil cylinder 40.

その後、図３（Ｂ）に示すように、翼車３０のフランジ３１に芯出治具１０を取り付ける。芯出治具１０の取り付けは、以下のように行う。   Thereafter, as shown in FIG. 3B, the centering jig 10 is attached to the flange 31 of the impeller 30. The centering jig 10 is attached as follows.

図４に示すように、翼車３０のフランジ３１には、ネジ孔３２が形成されており、このネジ孔３２と、ベースプレート１１の固定ボルト孔１１ａの位置を合わせるとともに、また、調節ボルト１３をねじ込む際に調節ボルト１３の先端がアーム用コマ受け６０に当接、押圧できる位置に合わせ、固定ボルト孔１１ａに固定ボルト１２を挿入する。そして、固定ボルト１２をねじ込むことで、ベースプレート１１がフランジ３１に固定される。ここでは、芯出治具１０が４つ、主軸２０を中心として略等角度に取り付けられている。   As shown in FIG. 4, a screw hole 32 is formed in the flange 31 of the impeller 30. The screw hole 32 is aligned with the fixing bolt hole 11 a of the base plate 11, and the adjustment bolt 13 is attached. The fixing bolt 12 is inserted into the fixing bolt hole 11a in accordance with a position where the tip of the adjusting bolt 13 can abut and press against the arm piece receiver 60 when screwing. Then, the base plate 11 is fixed to the flange 31 by screwing the fixing bolt 12. Here, four centering jigs 10 are attached at substantially equal angles with the main shaft 20 as the center.

そして、芯出治具１０を用いて油筒４０の芯出し作業を行う。芯出しは、図５に示すように、４つの芯出治具１０の調節ボルト１３を回しつつ、調節ボルト１３がアーム用コマ受け６０を押す量を調節することで行う。主軸２０の外周面から油筒４０の内周面までの垂直距離（図５に示すｄ）を測りながら、この垂直距離がどの位置から測ってもほぼ同じになるよう、適宜、調節ボルト１３で図中の矢印に示すように、移動させつつ油筒４０の位置調節をする。   Then, the centering operation of the oil cylinder 40 is performed using the centering jig 10. As shown in FIG. 5, the centering is performed by adjusting the amount by which the adjustment bolt 13 pushes the arm piece receiver 60 while turning the adjustment bolts 13 of the four centering jigs 10. While measuring the vertical distance (d shown in FIG. 5) from the outer peripheral surface of the main shaft 20 to the inner peripheral surface of the oil cylinder 40, the adjustment bolt 13 is appropriately adjusted so that the vertical distance becomes substantially the same regardless of the position. As indicated by the arrows in the figure, the position of the oil cylinder 40 is adjusted while being moved.

芯出しが完了した後、図６（Ａ）に示すように、油圧ピストン７０を主軸２０に取り付ける。そして、図６（Ｂ）に示すように、油筒４０に油筒蓋８０を取り付けた後、芯出治具１０を取り外す。更に、図７（Ａ）に示すように、動翼支持軸受９０の取り付け後、動翼１００を取り付け、動翼軸締付ナット１１０で、動翼１００を翼車３０に固定する。また、側板１２０を翼車３０に取り付けることで、図７（Ｂ）に示すように、軸流ファンを組み立てることができる。   After the centering is completed, the hydraulic piston 70 is attached to the main shaft 20 as shown in FIG. And after attaching the oil cylinder lid | cover 80 to the oil cylinder 40 as shown in FIG.6 (B), the centering jig | tool 10 is removed. Further, as shown in FIG. 7A, after the moving blade support bearing 90 is mounted, the moving blade 100 is mounted, and the moving blade 100 is fixed to the impeller 30 by the moving blade shaft tightening nut 110. Further, by attaching the side plate 120 to the impeller 30, the axial fan can be assembled as shown in FIG.

芯出治具１０は、簡素な構成でありながら、油筒４０の芯出し作業を容易に行うことができる。これにより、芯出し作業を短時間で行うことができる。更に、芯出しを精度よく行うことが可能であるため、芯出し精度の不良によって、油圧ピストン７０、油筒蓋８０が取り付けられないといった事態が抑えられ、再度分解が必要になるといった事態も避けることができる。   Although the centering jig 10 has a simple configuration, the centering operation of the oil cylinder 40 can be easily performed. Thereby, the centering operation can be performed in a short time. Furthermore, since the centering can be performed with high accuracy, a situation in which the hydraulic piston 70 and the oil cylinder lid 80 cannot be attached due to poor centering accuracy is suppressed, and a situation in which disassembly is necessary again is avoided. be able to.

なお、上記では芯出治具１０を４つ使用して油筒４０の芯出しを行う例について説明したがこれに限定されないが、芯出しを精度よく行うために、少なくとも３つの芯出治具１０を用い、主軸２０を中心にして略等角度に設置して使用することが好ましい。   In addition, although the example which performs centering of the oil cylinder 40 using four centering jig | tool 10 was demonstrated above, it is not limited to this, In order to perform centering accurately, at least 3 centering jig | tool is performed. 10 is preferably used by being installed at substantially equal angles around the main shaft 20.

また、ベースプレート１１の調節ボルト孔１１ｂは、調節ボルト１３と螺合するネジ溝が形成されていてもよい。この場合、固定ナット１４は設置されていなくてもよい。   Further, the adjustment bolt hole 11 b of the base plate 11 may be formed with a screw groove that is screwed with the adjustment bolt 13. In this case, the fixing nut 14 may not be installed.

１０ 芯出治具
１１ ベースプレート
１１ａ 固定ボルト孔
１１ｂ 調節ボルト孔
１２ 固定ボルト
１３ 調節ボルト
１４ 固定ナット
２０ 主軸
３０ 翼車
３１ フランジ
３２ ネジ孔
４０ 油筒
５０ 動翼軸アーム
５１ アーム用コマ
６０ アーム用コマ受け
７０ 油圧ピストン
８０ 油筒蓋
９０ 動翼支持軸受
１００ 動翼
１１０ 動翼軸締付ナット
１２０ 側板 DESCRIPTION OF SYMBOLS 10 Centering jig | tool 11 Base plate 11a Fixing bolt hole 11b Adjustment bolt hole 12 Fixing bolt 13 Adjustment bolt 14 Fixing nut 20 Main shaft 30 Impeller 31 Flange 32 Screw hole 40 Oil cylinder 50 Moving blade axis arm 51 Arm piece 60 Arm piece Receptacle 70 Hydraulic piston 80 Oil cylinder lid 90 Rotor blade support bearing 100 Rotor blade 110 Rotor blade shaft tightening nut 120 Side plate

Claims (4)

動翼可変軸流ファンの翼車のフランジに固定されるベースプレートと、
前記ベースプレートの固定ボルト孔を通り、前記フランジのネジ孔に螺合して前記ベースプレートを前記フランジに固定する固定ボルトと、
前記ベースプレートの調節ボルト孔を通り、前記翼車の内側に取り付けられた油筒のアーム用コマ受けを押して前記油筒の位置を調節する調節ボルトと、を備える、
ことを特徴とする動翼可変軸流ファンの芯出治具。 A base plate fixed to a flange of a rotor blade of a moving blade variable axial flow fan;
A fixing bolt that passes through the fixing bolt hole of the base plate and is screwed into the screw hole of the flange to fix the base plate to the flange;
An adjustment bolt that passes through the adjustment bolt hole of the base plate and adjusts the position of the oil cylinder by pushing an arm piece receiver for an oil cylinder attached to the inside of the impeller.
A centering jig for a variable blade axial flow fan characterized by that. 前記固定ボルト孔と前記調節ボルト孔との中心間距離が、前記フランジのネジ孔の中心から前記油筒に設置される前記アーム用コマ受けまでの平面距離よりも長い、
ことを特徴とする動翼可変軸流ファンの芯出治具。 The center-to-center distance between the fixing bolt hole and the adjusting bolt hole is longer than the plane distance from the center of the screw hole of the flange to the arm piece receiver installed in the oil cylinder,
A centering jig for a variable blade axial flow fan characterized by that. 動翼可変軸流ファンの翼車の内側に油筒を配置し、
請求項１又は２に記載の芯出治具を用いて前記油筒の芯出しを行う、
ことを特徴とする動翼可変軸流ファンの芯出方法。 An oil cylinder is arranged inside the impeller of the moving blade variable axial flow fan,
Centering the oil cylinder using the centering jig according to claim 1 or 2,
A method of centering a moving blade variable axial fan characterized by the above. 複数の前記芯出治具を用いる、
ことを特徴とする請求項３に記載の動翼可変軸流ファンの芯出方法。 Using a plurality of the centering jigs;
The method of centering a moving blade variable axial fan according to claim 3.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112324705A (en) * 2020-11-30 2021-02-05 上海海事大学 Air conditioner fan impeller with sawtooth tail edge on blade
WO2022061569A1 (en) * 2020-09-23 2022-03-31 南京中弘华飞信息科技有限公司 Easy-installation fan base
CN114992158A (en) * 2022-08-04 2022-09-02 常州市安禾电器有限公司 Metal stamping part and mounting structure thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022061569A1 (en) * 2020-09-23 2022-03-31 南京中弘华飞信息科技有限公司 Easy-installation fan base
CN112324705A (en) * 2020-11-30 2021-02-05 上海海事大学 Air conditioner fan impeller with sawtooth tail edge on blade
CN114992158A (en) * 2022-08-04 2022-09-02 常州市安禾电器有限公司 Metal stamping part and mounting structure thereof

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