JPH1030592A - Fixing method for blower blade - Google Patents
Fixing method for blower bladeInfo
- Publication number
- JPH1030592A JPH1030592A JP8189258A JP18925896A JPH1030592A JP H1030592 A JPH1030592 A JP H1030592A JP 8189258 A JP8189258 A JP 8189258A JP 18925896 A JP18925896 A JP 18925896A JP H1030592 A JPH1030592 A JP H1030592A
- Authority
- JP
- Japan
- Prior art keywords
- fixing groove
- fixing
- hub plate
- diameter
- blower blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、送風機翼の固定方
法に関し、例えば、クーリングタワーに設置される送風
機等の回転翼をハブプレートに固定するための方法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for fixing a blower blade, for example, a method for fixing a rotating blade of a blower or the like installed in a cooling tower to a hub plate.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】各種送
風機の回転翼をハブプレートに固定するための方法とし
ては、翼の取付軸が嵌合する嵌合溝を形成した支持部材
をハブプレートに溶接する方法や、ハブプレートを鋳物
で形成して翼の取付軸が嵌合する嵌合溝も一体成形する
方法等が知られている。これらの方法は、翼を安定した
状態で確実に固定することができるという利点はある
が、支持部材を溶接する方法は、ハブプレートに支持部
材を溶接する際に溶接歪みを生じたり、溶接部の表面仕
上げ（塗装，メッキ）の不良を生じたりすることがあ
り、溶接作業にも手間が掛かるためにコストアップの一
因となっていた。一方、ハブプレート全体を鋳物で形成
する方法は、鋳物製であるためにコスト高となり、重い
という問題もあった。2. Description of the Related Art As a method for fixing rotating blades of various blowers to a hub plate, a supporting member having a fitting groove in which a blade mounting shaft is fitted is formed on the hub plate. There are known a method of welding, a method of forming a hub plate by casting, and integrally forming a fitting groove into which a mounting shaft of a blade is fitted. These methods have the advantage that the wings can be reliably fixed in a stable state, but the method of welding the support member causes welding distortion when welding the support member to the hub plate, In some cases, the surface finish (painting, plating) may be defective, and the welding work is also troublesome, leading to an increase in cost. On the other hand, the method of forming the entire hub plate by casting has a problem that the cost is high and the weight is heavy because the hub plate is made of casting.
【０００３】また、ハブプレートの所定位置をプレス加
工することにより翼の取付軸を固定するための溝を形成
する方法も行われている。この方法は、簡単な加工機械
と簡単な締付け部材とを用いるだけで回転翼を固定でき
るため、コスト的には最も有利な方法であるといえる。Further, a method of forming a groove for fixing a blade mounting shaft by pressing a predetermined position of a hub plate is also performed. This method can be said to be the most advantageous in terms of cost because the rotor can be fixed only by using a simple processing machine and a simple fastening member.
【０００４】しかし、この方法では、図４に断面図で示
すように、ハブプレート１に形成した取付軸固定用の溝
２の径より取付軸３の径が小さい場合、取付軸３の外周
面と溝２の底部とが１点で接触する状態となるため、取
付軸３を安定した状態で固定することができなくなって
しまうという問題があった。なお、図４において、符号
４は取付用クランプ、５はＵボルト、６はナットであ
る。However, in this method, when the diameter of the mounting shaft 3 is smaller than the diameter of the mounting shaft fixing groove 2 formed in the hub plate 1, as shown in a sectional view of FIG. And the bottom of the groove 2 come into contact at one point, so that the mounting shaft 3 cannot be fixed in a stable state. In FIG. 4, reference numeral 4 denotes a mounting clamp, 5 denotes a U bolt, and 6 denotes a nut.
【０００５】そこで本発明は、ハブプレートに送風機翼
取付軸を安定した状態で確実にかつ低コストで固定する
ことができる送風機翼の固定方法を提供することを目的
としている。SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for fixing a blower blade that can securely and stably mount a blower blade mounting shaft to a hub plate at a low cost.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本発明の送風機翼の固定方法は、ハブプレートの所
定位置をプレス加工して送風機翼取付軸を固定するため
の固定溝を形成し、該固定溝に前記送風機翼取付軸を装
着して送風機翼をハブプレートに固定するにあたり、前
記固定溝の径を、前記送風機翼取付軸の径より小さく形
成し、送風機翼取付軸の外周面と固定溝の底面部との間
に隙間を形成した状態で送風機翼取付軸をハブプレート
に固定することを特徴としている。In order to achieve the above object, a method for fixing a blower blade according to the present invention comprises forming a fixing groove for fixing a blower blade mounting shaft by pressing a predetermined position of a hub plate. In mounting the blower blade mounting shaft in the fixing groove and fixing the blower blade to the hub plate, the diameter of the fixing groove is formed smaller than the diameter of the blower blade mounting shaft, and the outer peripheral surface of the blower blade mounting shaft. The blower blade mounting shaft is fixed to the hub plate with a gap formed between the blower blade and the bottom surface of the fixing groove.
【０００７】[0007]
【発明の実施の形態】以下、本発明を、図面を参照して
さらに詳細に説明する。図１乃至図３は、本発明の送風
機翼の固定方法の一例を示すもので、図１は図２のＩ−
Ｉ線断面図、図２は要部の平面図、図３は送風機翼を固
定したハブプレートを示す平面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to the drawings. 1 to 3 show an example of a method for fixing a blower blade according to the present invention, and FIG.
2 is a plan view of a main part, and FIG. 3 is a plan view showing a hub plate to which a blower blade is fixed.
【０００８】まず、図３に示すように、ハブプレート１
１は、円盤状に形成された金属製のものであって、その
中心部には電動機等に接続された駆動軸を固定するため
の駆動軸固定孔１２が形成されており、周辺部に４枚の
送風機翼１３を固定するための翼固定部１４が４箇所等
間隔で設けられている。First, as shown in FIG.
Reference numeral 1 denotes a disk-shaped metal member, in which a drive shaft fixing hole 12 for fixing a drive shaft connected to an electric motor or the like is formed at the center thereof, and 4 is formed at a peripheral portion. Blade fixing portions 14 for fixing the blower blades 13 are provided at four locations at equal intervals.
【０００９】上記翼固定部１４に送風機翼１３の取付軸
１５を固定するにあたっては、図１に示すように、翼固
定部１４部分のハブプレート１１をプレスにより絞り加
工を行って取付軸１５の径より小さな径の固定溝１６を
形成する。この固定溝１６の加工半径は、取付軸１５の
半径に対して０．５〜２ｍｍ小さくすればよく、取付軸
１５の径の大小に応じて適当な寸法を選定することがで
きる。なお、固定溝１６のハブプレート中心部側には、
固定溝１６の加工を容易にするための逃げ孔１７をあら
かじめ形成しておくことが好ましい。In fixing the mounting shaft 15 of the blower blade 13 to the wing fixing portion 14, as shown in FIG. 1, the hub plate 11 of the wing fixing portion 14 is drawn by pressing to form the mounting shaft 15. A fixing groove 16 having a diameter smaller than the diameter is formed. The processing radius of the fixing groove 16 may be smaller than the radius of the mounting shaft 15 by 0.5 to 2 mm, and an appropriate dimension can be selected according to the diameter of the mounting shaft 15. In addition, on the hub plate center side of the fixing groove 16,
It is preferable to previously form a relief hole 17 for facilitating the processing of the fixing groove 16.
【００１０】次に、取付軸１５を固定溝１６部分にセッ
トし、従来と同様の取付用クランプ１８、Ｕボルト１９
及びナット２０を用いてハブプレート１１に締付け固定
する。このとき、固定溝１６の径が取付軸１５の径より
小さく形成されていることから、固定溝１６の開口幅が
取付軸１５の直径より小さいため、取付軸１５を固定溝
１６内に嵌入させることなく、取付軸１５の外周面と固
定溝１６の底面部との間に隙間２１を形成した状態で締
付け固定する。Next, the mounting shaft 15 is set in the fixing groove 16 and the mounting clamp 18 and the U bolt
And the nut 20 is tightened and fixed to the hub plate 11. At this time, since the diameter of the fixing groove 16 is smaller than the diameter of the mounting shaft 15, the opening width of the fixing groove 16 is smaller than the diameter of the mounting shaft 15, so that the mounting shaft 15 is fitted into the fixing groove 16. Instead, it is tightened and fixed with a gap 21 formed between the outer peripheral surface of the mounting shaft 15 and the bottom surface of the fixing groove 16.
【００１１】これにより、取付軸１５は、その外周面が
固定溝１６の両開口縁にそれぞれ圧接した状態で固定さ
れるため、取付軸１５とハブプレート１１とが２点で接
触することになり、安定した状態で確実に送風機翼１３
をハブプレート１１に固定することができる。As a result, the mounting shaft 15 is fixed in a state where the outer peripheral surface thereof is pressed against both opening edges of the fixing groove 16, so that the mounting shaft 15 and the hub plate 11 come into contact at two points. , The blower blades 13 in a stable state
Can be fixed to the hub plate 11.
【００１２】なお、翼の枚数は任意であり、駆動軸とハ
ブプレートとの固定構造等、その他の構造は従来と同様
に形成することができるので、その詳細な説明は省略す
る。The number of blades is arbitrary, and other structures such as a structure for fixing the drive shaft and the hub plate can be formed in the same manner as in the prior art, so that detailed description thereof will be omitted.
【００１３】[0013]
【発明の効果】以上説明したように、本発明の送風機翼
の固定方法によれば、プレス加工により翼取付部を形成
するので、コストの低減が図れるとともに、表面仕上げ
等の品質向上が図れるだけでなく、翼を安定した状態で
確実に固定することができる。As described above, according to the blower blade fixing method of the present invention, since the blade mounting portion is formed by pressing, the cost can be reduced and the quality such as surface finishing can be improved. Instead, the wings can be securely fixed in a stable state.
【図１】 図２のＩ−Ｉ線断面図である。FIG. 1 is a sectional view taken along line II of FIG. 2;
【図２】 要部の平面図である。FIG. 2 is a plan view of a main part.
【図３】 送風機翼を固定したハブプレートを示す平面
図である。FIG. 3 is a plan view showing a hub plate to which a blower blade is fixed.
【図４】 従来の送風機翼の固定方法の一例を示す断面
図である。FIG. 4 is a cross-sectional view showing an example of a conventional method for fixing a blower blade.
１１…ハブプレート、１２…駆動軸固定孔、１３…送風
機翼、１４…翼固定部、１５…取付軸、１６…固定溝、
１７…逃げ孔、１８…取付用クランプ、１９…Ｕボル
ト、２０…ナット、２１…隙間11: Hub plate, 12: Drive shaft fixing hole, 13: Blower blade, 14: Blade fixing part, 15: Mounting shaft, 16: Fixing groove,
17 ... escape hole, 18 ... mounting clamp, 19 ... U bolt, 20 ... nut, 21 ... gap
Claims (1)
て送風機翼取付軸を固定するための固定溝を形成し、該
固定溝に前記送風機翼取付軸を装着して送風機翼をハブ
プレートに固定するにあたり、前記固定溝の径を、前記
送風機翼取付軸の径より小さく形成し、送風機翼取付軸
の外周面と固定溝の底面部との間に隙間を形成した状態
で送風機翼取付軸をハブプレートに固定することを特徴
とする送風機翼の固定方法。1. A fixed groove for fixing a blower blade mounting shaft is formed by pressing a predetermined position of a hub plate, and the blower blade mounting shaft is mounted on the fixed groove to fix the blower blade to the hub plate. In doing so, the diameter of the fixing groove is formed smaller than the diameter of the blower blade mounting shaft, the blower blade mounting shaft in a state where a gap is formed between the outer peripheral surface of the blower blade mounting shaft and the bottom portion of the fixing groove. A method for fixing a blower blade, wherein the blower blade is fixed to a hub plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18925896A JP3600944B2 (en) | 1996-07-18 | 1996-07-18 | How to fix the blower blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18925896A JP3600944B2 (en) | 1996-07-18 | 1996-07-18 | How to fix the blower blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1030592A true JPH1030592A (en) | 1998-02-03 |
| JP3600944B2 JP3600944B2 (en) | 2004-12-15 |
Family
ID=16238295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18925896A Expired - Lifetime JP3600944B2 (en) | 1996-07-18 | 1996-07-18 | How to fix the blower blade |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3600944B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7318675B2 (en) | 2004-04-08 | 2008-01-15 | Kellogg Jr Bill | Device for temporary repair of auger carrier bearings |
| CN109139548A (en) * | 2018-10-16 | 2019-01-04 | 广州合众富华节能环保科技有限公司 | A kind of blower fan of cooling tower blade mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5324612A (en) * | 1976-08-20 | 1978-03-07 | Asahi Glass Co Ltd | Fan blades made of fiberrreinforced plastics |
| JPS5328808A (en) * | 1976-08-31 | 1978-03-17 | Asahi Glass Co Ltd | Fan blades |
| JPS5315220B2 (en) * | 1973-07-23 | 1978-05-23 | ||
| JPS5879179U (en) * | 1981-11-25 | 1983-05-28 | 三菱自動車工業株式会社 | clamp device |
| JPS61124707U (en) * | 1985-01-24 | 1986-08-06 | ||
| JPH087181Y2 (en) * | 1990-03-13 | 1996-03-04 | 日立プラント建設株式会社 | Plumbing support |
-
1996
- 1996-07-18 JP JP18925896A patent/JP3600944B2/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5315220B2 (en) * | 1973-07-23 | 1978-05-23 | ||
| JPS5324612A (en) * | 1976-08-20 | 1978-03-07 | Asahi Glass Co Ltd | Fan blades made of fiberrreinforced plastics |
| JPS5328808A (en) * | 1976-08-31 | 1978-03-17 | Asahi Glass Co Ltd | Fan blades |
| JPS5879179U (en) * | 1981-11-25 | 1983-05-28 | 三菱自動車工業株式会社 | clamp device |
| JPS61124707U (en) * | 1985-01-24 | 1986-08-06 | ||
| JPH087181Y2 (en) * | 1990-03-13 | 1996-03-04 | 日立プラント建設株式会社 | Plumbing support |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7318675B2 (en) | 2004-04-08 | 2008-01-15 | Kellogg Jr Bill | Device for temporary repair of auger carrier bearings |
| CN109139548A (en) * | 2018-10-16 | 2019-01-04 | 广州合众富华节能环保科技有限公司 | A kind of blower fan of cooling tower blade mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3600944B2 (en) | 2004-12-15 |
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