JPS60198398A - Impeller - Google Patents
ImpellerInfo
- Publication number
- JPS60198398A JPS60198398A JP5488884A JP5488884A JPS60198398A JP S60198398 A JPS60198398 A JP S60198398A JP 5488884 A JP5488884 A JP 5488884A JP 5488884 A JP5488884 A JP 5488884A JP S60198398 A JPS60198398 A JP S60198398A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- end section
- leading end
- impeller
- welding
- 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.)
- Pending
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】 〈発明の技術分野〉 本発明は送風機等における羽根車に関する。[Detailed description of the invention] <Technical field of invention> The present invention relates to an impeller in a blower or the like.
〈従来技術〉
従来送風機として、流線形の筒状をなす翼形な有する羽
根を、相対向する板部材間に固着した構成の羽根車を備
えたものが知られている。<Prior Art> As a conventional blower, one is known that includes an impeller having a configuration in which streamlined cylindrical airfoil-shaped blades are fixed between opposing plate members.
これの−側構造を第1図〜第6図に基づいて説明すると
、1は主板、2は側板、3は羽根である。The minus side structure of this will be explained based on FIGS. 1 to 6. 1 is a main plate, 2 is a side plate, and 3 is a blade.
この羽根3は第3図に示す如く、上述したように流線形
の筒状をなす翼形な有しており、補強のためのリプ4竺
その内周側に固定して備えた構成であり、単品で成形さ
れ、溶接組立された後、主板1及び側板2に溶接固定さ
れる。As shown in FIG. 3, this blade 3 has a streamlined cylindrical airfoil shape as described above, and has a lip 4 fixed to its inner circumferential side for reinforcement. , is molded as a single item, assembled by welding, and then welded and fixed to the main plate 1 and side plate 2.
かかる羽根車の羽根3は筒状をなす関係から、その両端
部を第4図及び第5図に示す通り、主板1と側板2に溶
接する場合、5の溶接溶着金稿部で示されるように羽根
3の端部外周側からしか溶接することができない。この
ため、第6図に示すように羽根3の内周側に不溶着部6
が生じるのが避けられない。Since the blades 3 of such an impeller are cylindrical, when their ends are welded to the main plate 1 and the side plate 2 as shown in FIGS. 4 and 5, as shown in the welded metal part 5 Welding can only be performed from the outer peripheral side of the end of the blade 3. For this reason, as shown in FIG.
is inevitable.
このように不溶着部6が生じると、特に羽根車の回転応
力が高い羽根3の翼頭部分の疲労強度は、第9図のAに
示すように著しく低下する。When the unwelded portion 6 is formed in this manner, the fatigue strength of the blade head portion of the blade 3, where the rotational stress of the impeller is particularly high, is significantly reduced as shown in A in FIG. 9.
〈発明の概要〉
そこで一本発明は以上のような従来の実情に鑑み1羽根
を翼頭部分と翼尾部分とに分割し、特に高い回転応力が
加わる翼頭部分と相対向する板部材との溶接を、該翼頼
部分の内周側と外周側の両側から行い得る構成とするこ
とにより、不溶着部を解消し1強度の向上を図ることを
目的とする。<Summary of the Invention> In view of the above-mentioned conventional circumstances, the present invention divides one blade into a wing head portion and a wing tail portion, and includes a plate member facing the wing head portion to which particularly high rotational stress is applied. The purpose of the present invention is to eliminate unwelded areas and improve strength by creating a configuration in which welding can be performed from both the inner and outer circumferential sides of the blade support portion.
〈発明の実施例〉
以下、本発明の一実施例を第7図〜第9図に基づいて説
明する。<Embodiment of the Invention> Hereinafter, an embodiment of the present invention will be described based on FIGS. 7 to 9.
第7図において、13眸流線形の筒状をなす翼形を有す
る羽根で、Tの翼頭部分と、8の具足部分と、に分割さ
れた構成である。4は具足部分8の内側に固着されたリ
プである。In FIG. 7, the blade has a cylindrical airfoil shape with 13 vertices, and is divided into a T wing head portion and an 8 armature portion. 4 is a lip fixed to the inside of the leg part 8.
かかる羽根13は、翼頭部分子と具足部分8とを第2図
に示したような主板1と側板2とに別々に溶接すること
により組み立てられる。Such a blade 13 is assembled by separately welding the wing head part and the armature part 8 to the main plate 1 and the side plate 2 as shown in FIG.
この場合、まず翼頭部分子を第8図に示すようにその内
周側からの溶接(溶接溶着金属部5A)によって主板1
と側板(図示せず)に固着し、次にこの翼頭部分7と具
足部分8とを、夫々の外周側からの溶接(溶接溶着金属
部5B)によって主板1と側板に固着する。In this case, first, as shown in FIG.
and a side plate (not shown), and then the wing head portion 7 and the armature portion 8 are fixed to the main plate 1 and the side plate by welding from the respective outer peripheral sides (welding weld metal portion 5B).
従って、このように翼頭部分1をその内周側と外周側と
の両側からの溶接によって主板1と側板とに固着するよ
うにした結果、興頭部分7と主板1及び側板との固着部
には不溶着部が存在せず、特に高い回転応力が加わる翼
頭部分7の疲労強度は第9図のBのように向上する。尚
、このように強度向上が図れる結果、羽根車の高速化、
軽量化が図れるという効果がある。Therefore, as a result of fixing the wing head portion 1 to the main plate 1 and the side plate by welding from both the inner and outer circumferential sides, the fixed portion between the wing head portion 7 and the main plate 1 and the side plate is fixed. Since there is no unwelded part, the fatigue strength of the wing head portion 7, which is particularly subjected to high rotational stress, is improved as shown in B in FIG. 9. In addition, as a result of improving the strength in this way, the speed of the impeller can be increased,
This has the effect of reducing weight.
〈発明の効果〉
以上説明したように本発明によれば、羽根を翼頭部分と
具足部分とに分割し、翼頭部分を相対向する板部材に内
周側と外周側との両側から溶接するようにしたから、こ
の部分の不溶着部の存在を解消でき5回転応力の高い翼
頭部分の強度向上を図れ、ひいては羽根車の高速化、軽
量化を実現できる効果がある。<Effects of the Invention> As explained above, according to the present invention, a blade is divided into a wing head portion and an armature portion, and the blade head portion is welded to opposing plate members from both the inner and outer circumferential sides. By doing so, it is possible to eliminate the presence of unwelded parts in this part, improve the strength of the blade head part where 5-turn stress is high, and have the effect of realizing higher speed and lighter weight of the impeller.
第1図は従来の羽根車の側面図、第2図は第1図の1−
1断面図、第3図は同上の羽根車罠おける羽根の外観構
造を示す斜視図、第4図は第2図のト」断面図、第5図
は第2図の11断面図、第6図は第5図の拡大図、第7
図は本発明の羽根構造を示す斜視図、第8図は同上の羽
根の溶接部の断面図、第9図は本発明と従来例における
羽根の疲労強度線図である。
1・・・主板 2・・・側板 5A、5B・・・溶接溶
着金属部 7・・・翼頭部分 8・・・具足部分13・
・・羽根
代理人 大 岩 増 雄(ほか2名)
第1図Figure 1 is a side view of a conventional impeller, and Figure 2 is 1- in Figure 1.
1 sectional view, FIG. 3 is a perspective view showing the external structure of the impeller in the same impeller trap as above, FIG. 4 is a sectional view shown in FIG. The figure is an enlarged view of Figure 5,
The figure is a perspective view showing the blade structure of the present invention, FIG. 8 is a sectional view of a welded part of the same blade, and FIG. 9 is a fatigue strength diagram of the blade in the present invention and a conventional example. 1... Main plate 2... Side plate 5A, 5B... Welded metal part 7... Wing head part 8... Armature part 13.
...Hane agent Masuo Oiwa (and 2 others) Figure 1
Claims (1)
部材間に固着した構成の羽根車において、前記羽根を、
前記板部材に内周側と外周側から溶接される翼頭部分と
、前記板部材に溶接される翼尾部分と、02分割体によ
り構成したことを特徴とする羽根車。In an impeller having a configuration in which airfoil-shaped blades having a streamlined cylindrical shape are fixed between opposing plate members, the blades are
An impeller comprising: a blade head portion welded to the plate member from the inner circumferential side and an outer circumferential side; a wing tail portion welded to the plate member; and a 02 split body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5488884A JPS60198398A (en) | 1984-03-21 | 1984-03-21 | Impeller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5488884A JPS60198398A (en) | 1984-03-21 | 1984-03-21 | Impeller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60198398A true JPS60198398A (en) | 1985-10-07 |
Family
ID=12983125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5488884A Pending JPS60198398A (en) | 1984-03-21 | 1984-03-21 | Impeller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60198398A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3236081A1 (en) * | 2016-04-20 | 2017-10-25 | Punker GmbH | Centrifugal fan blade made of bent sheet metal with a seam on the pressure or suction side |
-
1984
- 1984-03-21 JP JP5488884A patent/JPS60198398A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3236081A1 (en) * | 2016-04-20 | 2017-10-25 | Punker GmbH | Centrifugal fan blade made of bent sheet metal with a seam on the pressure or suction side |
CN107401525A (en) * | 2016-04-20 | 2017-11-28 | 庞克有限公司 | Formed blades and blast fan |
CN107401525B (en) * | 2016-04-20 | 2021-01-12 | 庞克有限公司 | Formed blade and fan impeller |
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