JPH0137198Y2 - - Google Patents
Info
- Publication number
- JPH0137198Y2 JPH0137198Y2 JP1984169776U JP16977684U JPH0137198Y2 JP H0137198 Y2 JPH0137198 Y2 JP H0137198Y2 JP 1984169776 U JP1984169776 U JP 1984169776U JP 16977684 U JP16977684 U JP 16977684U JP H0137198 Y2 JPH0137198 Y2 JP H0137198Y2
- Authority
- JP
- Japan
- Prior art keywords
- wear
- resistant
- blade
- ceramic
- ceramic wear
- 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.)
- Expired
Links
- 239000000919 ceramic Substances 0.000 claims description 31
- 230000000694 effects Effects 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 238000005219 brazing Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、送風機の羽根車に関するものであ
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an impeller for a blower.
羽根車、わけてもボイラの廃ガス用、土砂塵埃
の多い空気の排気用など、固形微粒子のダストを
多く含むガスを扱う送風機の羽根車では、特に摩
耗の起き易い部分に金属製のライナや耐摩肉盛が
施され、補修を重ねて使用されている。実開昭50
−98309号公報参照）
しかしながら、いずれも寿命が短く頻繁に補修
を要し、装置の稼動率の低下や補修のために多大
の時間と手間の損失を招いていた。
Impellers, especially impellers for blowers that handle gas containing a lot of solid particulate dust, such as those used for boiler waste gas or for exhausting air with a lot of dirt, dust, etc., are equipped with metal liners or wear-resistant walls on parts that are particularly prone to wear. It has been decorated and used after many repairs. Jitsukai Showa 50
(Refer to Publication No. 98309) However, all of them have short lifespans and require frequent repairs, resulting in a decrease in the operating rate of the equipment and a great loss of time and effort due to repairs.
近年、耐摩性の非常にすぐれた材料としてセラ
ミツクの利用がはかられ、特開昭59−34499号公
報に見られるように羽根の入口縁にＵ字型などの
セラミツク耐摩片を直接嵌着固定して母材を保護
することが行われるようになつた。 In recent years, the use of ceramic as a material with excellent wear resistance has been promoted, and as seen in Japanese Patent Application Laid-open No. 59-34499, a U-shaped ceramic wear-resistant piece is directly fitted and fixed on the inlet edge of the blade. It has become common practice to protect the base material by
しかしながら、これは回転中の羽根の変形や熱
膨張によりセラミツクが破壊、剥離し易く、また
取付作業に手間を要するという問題点があつた。
However, this has the problem that the ceramic is easily broken or peeled off due to the deformation and thermal expansion of the blades during rotation, and the installation work is time-consuming.
本考案は、従来のものの上記の問題点を除き、
セラミツク耐摩片が破壊、剥離し難く、取付、取
替も容易に行うことのできる耐摩部材を備えた羽
根車を提供することを目的とするものである。 The present invention eliminates the above problems of the conventional one,
It is an object of the present invention to provide an impeller equipped with a wear-resistant member in which ceramic wear-resistant pieces are difficult to break or peel off and can be easily installed and replaced.
本考案は、羽根裏側部への取付部と羽根入口縁
７よりも突出する先端部とからなる平板型保持金
具１０の先端部外周に、表面部から端面部を覆う
セラミツク耐摩片１１、裏面部にセラミツク耐摩
片１３をそれぞれロー付けして耐摩部材６を形成
し、入口側の羽根表面をセラミツク耐摩片８で覆
い、前記耐摩部材６を耐摩部材６のセラミツク耐
摩片１１と羽根表面のセラミツク耐摩片８との間
に隙間１４を介在させて羽根入口部に取り付けた
ことを特徴とする羽根車である。
In the present invention, a ceramic wear-resistant piece 11 that covers from the front surface to the end surface is attached to the outer periphery of the tip of the flat plate-type holding fitting 10, which consists of a mounting portion to the back side of the blade and a tip that protrudes beyond the blade inlet edge 7. A wear-resistant member 6 is formed by brazing a ceramic wear-resistant piece 13 on each of the blades, and a ceramic wear-resistant piece 8 covers the blade surface on the inlet side. This impeller is characterized in that it is attached to the blade inlet with a gap 14 interposed between it and the piece 8.
本考案の羽根車は羽根裏側部への取付部と羽根
入口縁７よりも突出する先端部とからなる平板型
保持金具１０の先端部外周に、表面部から端面部
を覆うセラミツク耐摩片１１、裏面部にセラミツ
ク耐摩片１３をそれぞれロー付けして耐摩部材６
を形成し、入口側の羽根表面をセラミツク耐摩片
８で覆い、前記耐摩部材６を耐摩部材６のセラミ
ツク耐摩片１１と羽根表面のセラミツク耐摩片８
との間に隙間１４を介在させて羽根入口部に取り
付けたので、耐摩部材６は例えば羽根に設けた内
周面がネジ部となつた穴に羽根の裏側からボルト
で取り付けられ、羽根表面全体をセラミツク耐摩
片８で覆うことができる。羽根裏側のボルトの頭
部はセラミツク耐摩片１３で保護される。また隙
間１４により高温ガスを扱つてもセラミツク耐摩
片１１，８が相互に干渉することがない。
The impeller of the present invention has a ceramic wear-resistant piece 11 on the outer periphery of the tip of a flat plate type holding fitting 10 consisting of a mounting portion to the back side of the blade and a tip protruding beyond the blade inlet edge 7, and a ceramic wear-resistant piece 11 that covers from the surface to the end surface. Ceramic wear-resistant pieces 13 are brazed to the back side of each of the wear-resistant members 6.
The blade surface on the inlet side is covered with a ceramic wear-resistant piece 8, and the wear-resistant member 6 is covered with a ceramic wear-resistant piece 11 of the wear-resistant member 6 and a ceramic wear-resistant piece 8 on the blade surface.
Since the wear-resistant member 6 is attached to the blade inlet with a gap 14 interposed between the blade and the blade, the wear-resistant member 6 is attached with a bolt from the back side of the blade to a hole provided in the blade, the inner peripheral surface of which is a threaded part, and the entire blade surface is can be covered with a ceramic wear-resistant piece 8. The head of the bolt on the back side of the blade is protected by a ceramic wear-resistant piece 13. Furthermore, the gap 14 prevents the ceramic wear-resistant pieces 11 and 8 from interfering with each other even when handling high-temperature gas.
本考案を実施例について図面を用いて説明す
る。
The present invention will be described with reference to embodiments with reference to the drawings.
第１図〜第３図において、羽根車１はハブ２、
主板３、側板４、羽根５とから成つており、羽根
５の表面にはセラミツク製の多数の耐摩片８が取
付けられている。 In FIGS. 1 to 3, the impeller 1 has a hub 2,
It consists of a main plate 3, side plates 4, and blades 5, and a large number of wear-resistant pieces 8 made of ceramic are attached to the surface of the blades 5.
羽根５の入口縁７には耐摩部材６が取付けられ
ている。耐摩部材６は、ボルト９にて羽根５の裏
側部に取付けられる取付部と羽根入口縁７よりも
突出する先端部とからなる巾30〜50mm程度の鋼製
の平板型保持金具１０に、先端部の表面部から端
面部を覆うＬ型に予め成形したセラミツク耐摩片
１１をロー付けにて接着し、裏面部にもセラミツ
ク耐摩片１３をロー付けして形成されている。 A wear-resistant member 6 is attached to the inlet edge 7 of the blade 5. The wear-resistant member 6 is attached to a steel plate-shaped holding bracket 10 having a width of about 30 to 50 mm, which consists of a mounting part that is attached to the back side of the blade 5 with bolts 9 and a tip part that protrudes beyond the blade inlet edge 7. A ceramic wear-resistant piece 11 previously formed into an L shape that covers the front surface to the end face of the part is bonded by brazing, and a ceramic wear-resistant piece 13 is also brazed to the back surface.
このようにして形成した耐摩部材６は平板型保
持金具１０のセラミツク耐摩片１１と羽根５表面
に取付けられたセラミツク耐摩片８との間に、
0.5〜1.5mm程度の隙間１４を設けて羽根５の裏側
からボルト９にて取り付けられ、相互の干渉によ
る割れや剥離を防止するようにしてある。ボルト
９の頭はセラミツク耐摩片１３により耐摩を防止
される。１２は隙間である。 The wear-resistant member 6 formed in this way is placed between the ceramic wear-resistant piece 11 of the flat plate type holding fitting 10 and the ceramic wear-resistant piece 8 attached to the surface of the blade 5.
It is attached with bolts 9 from the back side of the blade 5 with a gap 14 of about 0.5 to 1.5 mm to prevent cracking or peeling due to mutual interference. The head of the bolt 9 is protected from wear by a ceramic wear-resistant piece 13. 12 is a gap.
以上述べたように本考案によれば、回転中の羽
根の変形や熱膨張により剥離を防止することがで
き、さらに着脱が極めて容易で、かつ羽根表面全
面へのセラミツク耐摩片貼付に支障を与えること
なく羽根の裏側から取り付けられたユニツト式の
耐摩部材を備えた羽根車を提供することができ、
多くの顕著な効果を奏することができる。
As described above, according to the present invention, it is possible to prevent peeling due to deformation and thermal expansion of the blade during rotation, and furthermore, it is extremely easy to attach and detach, and there is no problem in attaching ceramic wear-resistant pieces to the entire surface of the blade. It is possible to provide an impeller equipped with a unit-type wear-resistant member that is attached from the back side of the blade without
It can have many remarkable effects.
図面は本考案の一実施例を示すもので、第１図
は羽根車の正面図、第２図はその縦断面図、第３
図は羽根の入口縁における断面図である。
１…羽根車、２…ハブ、３…主板、４…側板、
５…羽根、６…耐摩部材、７…入口縁、８…セラ
ミツク耐摩片、９…ボルト、１０平板型保持金
具、１１…セラミツク耐摩片、１２…隙間、１３
…セラミツク耐摩片、１４…隙間。
The drawings show one embodiment of the present invention; Fig. 1 is a front view of the impeller, Fig. 2 is a longitudinal sectional view thereof, and Fig. 3 is a longitudinal sectional view of the impeller.
The figure is a sectional view at the inlet edge of the vane. 1... Impeller, 2... Hub, 3... Main plate, 4... Side plate,
5... Vane, 6... Wear-resistant member, 7... Inlet edge, 8... Ceramic wear-resistant piece, 9... Bolt, 10 Flat plate type holding fitting, 11... Ceramic wear-resistant piece, 12... Gap, 13
...Ceramic wear-resistant piece, 14...Gap.
Claims (1)
出する先端部とからなる平板型保持金具１０の先
端部外周に、表面部から端面部を覆うセラミツク
耐摩片１１、裏面部にセラミツク耐摩片１３をそ
れぞれロー付けして耐摩部材６を形成し、入口側
の羽根表面をセラミツク耐摩片８で覆い、前記耐
摩部材６を耐摩部材６のセラミツク耐摩片１１と
羽根表面のセラミツク耐摩片８との間に隙間１４
を介在させて羽根入口部に取り付けたことを特徴
とする羽根車。 A ceramic wear-resistant piece 11 is placed on the outer periphery of the tip of the flat plate type holding fitting 10, which consists of an attachment part to the back side of the blade and a tip that protrudes beyond the blade inlet edge 7, and a ceramic wear-resistant piece 11 that covers the front side to the end face. 13 are brazed to each other to form a wear-resistant member 6, the blade surface on the inlet side is covered with a ceramic wear-resistant piece 8, and the wear-resistant member 6 is bonded between the ceramic wear-resistant piece 11 of the wear-resistant member 6 and the ceramic wear-resistant piece 8 on the blade surface. gap 14 between
An impeller characterized in that the impeller is attached to the impeller inlet portion with the intervening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984169776U JPH0137198Y2 (en) | 1984-11-08 | 1984-11-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984169776U JPH0137198Y2 (en) | 1984-11-08 | 1984-11-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6184195U JPS6184195U (en) | 1986-06-03 |
| JPH0137198Y2 true JPH0137198Y2 (en) | 1989-11-09 |
Family
ID=30727492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984169776U Expired JPH0137198Y2 (en) | 1984-11-08 | 1984-11-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0137198Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5934499A (en) * | 1982-08-21 | 1984-02-24 | Tokyo Yogyo Co Ltd | Impeller for blower |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5098309U (en) * | 1974-01-10 | 1975-08-15 | ||
| JPS59177797U (en) * | 1983-05-10 | 1984-11-28 | 株式会社荏原製作所 | Impeller for blower |
-
1984
- 1984-11-08 JP JP1984169776U patent/JPH0137198Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5934499A (en) * | 1982-08-21 | 1984-02-24 | Tokyo Yogyo Co Ltd | Impeller for blower |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6184195U (en) | 1986-06-03 |
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