JPH03560Y2 - - Google Patents
Info
- Publication number
- JPH03560Y2 JPH03560Y2 JP1985128137U JP12813785U JPH03560Y2 JP H03560 Y2 JPH03560 Y2 JP H03560Y2 JP 1985128137 U JP1985128137 U JP 1985128137U JP 12813785 U JP12813785 U JP 12813785U JP H03560 Y2 JPH03560 Y2 JP H03560Y2
- Authority
- JP
- Japan
- Prior art keywords
- boss material
- back plate
- impeller
- fitting hole
- boss
- 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
- 239000000463 material Substances 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 11
- 239000000919 ceramic Substances 0.000 claims description 9
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- 238000000605 extraction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【考案の詳細な説明】
［考案の技術分野］
本考案は、水中ポンプ用羽根車の構造に関する
ものである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to the structure of an impeller for a submersible pump.
［従来技術とその問題点］
水中で使用されるポンプは、土砂類を吸引する
ため金属製の羽根車、特に羽根板の磨耗が激し
く、磨耗した場合にはポンプ性能を低下させない
ために新しいものと交換する必要があり、手数を
要すると共に修理費が高くつくという点に問題を
有している。[Prior art and its problems] Pumps used underwater have metal impellers, especially the blades, that are subject to severe wear because they suck in sediment.If they wear out, new ones are needed to prevent the pump performance from deteriorating. The problem is that it is time-consuming and expensive to repair.
近年、シリコンカーバイト等のセラミツクが、
軽量で硬度が高く、耐磨耗性に優れた材料として
注目されているが、難加工であり、かつ衝撃に弱
いという欠点がある。ボス部の軸孔をポンプ軸に
静合させ、かつ、キー溝をボス部に刻設しなけれ
ばならないため、精密な仕上げを必要とする。ま
た、羽根車の抜取り時には、背板の裏面へスパナ
等を当てがつてハンマーで叩打するという方法が
往々用いられるので、その衝撃に耐え得る強度を
必要とする。従つて、羽根車をセラミツク製とす
ることは実用上困難であるとされていた。 In recent years, ceramics such as silicon carbide,
Although it is attracting attention as a material that is lightweight, has high hardness, and has excellent wear resistance, it has the drawbacks of being difficult to process and being sensitive to impact. Precise finishing is required because the shaft hole of the boss part must be statically aligned with the pump shaft and a keyway must be carved in the boss part. Furthermore, when removing the impeller, a method is often used in which a spanner or the like is applied to the back surface of the back plate and the impeller is struck with a hammer, so the impeller needs to be strong enough to withstand the impact. Therefore, it has been thought that it is practically difficult to make the impeller made of ceramic.
［考案の目的］
本考案においては、耐磨耗性の必要とされる部
分には硬度に富むセラミツクを使用し、精密仕上
げおよび耐衝撃性を必要とする部分には加工性と
強度に優れた金属または合成樹脂を使用すること
により、異種材料の特性が発揮し得る耐久性に優
れ、かつ、抽脱作業も衝撃を加えることなく円滑
に行われる、水中ポンプ用羽根車の提供を目的と
している。[Purpose of the invention] In this invention, ceramic with high hardness is used for parts that require wear resistance, and ceramic with excellent workability and strength is used for parts that require precision finishing and impact resistance. By using metal or synthetic resin, the objective is to provide an impeller for a submersible pump that has excellent durability that can exhibit the characteristics of different materials, and that allows extraction work to be performed smoothly without applying impact. .
［考案の構成］
本考案に係る水中ポンプ用羽根車においては、
羽根板を突設させたセラミツク製の背板の中心部
にボス材嵌着穴を穿設し、該ボス材嵌着穴の外周
に沿つて複数個の透孔を穿設し、一端に係止鍔を
突設し中心部に軸孔を突設した金属または合成樹
脂製のボス材を背板表面側から上記ボス材嵌着穴
内へ嵌着してその表側縁部に係止鍔を係止させ、
かつ、内周部に雌ネジを刻設した鳩目状金属管を
前記透孔内に嵌着せしめた構造となつている。[Structure of the invention] In the impeller for a submersible pump according to the invention,
A boss material fitting hole is drilled in the center of the ceramic back plate on which the wing board is protruded, and a plurality of through holes are bored along the outer periphery of the boss material fitting hole, and a hole is formed at one end. A boss material made of metal or synthetic resin with a protruding stop flange and a shaft hole protruding from the center is fitted into the boss material fitting hole from the front surface side of the back plate, and the locking flange is attached to the front edge. make it stop,
Moreover, it has a structure in which an eyelet-shaped metal tube with a female thread cut into the inner periphery is fitted into the through hole.
［実施例］
実施態様を例示した図面について説明すると、
１はシリコンカーバイト等のセラミツク製背板で
あつて、中心部にボス材嵌着穴２を穿設すると共
に背板表面１ａに羽根板３を突設する。４は前記
ボス材嵌着穴２内へ嵌着されるボス材であつて、
金属または合成樹脂で作られ、前記ボス材嵌着穴
２の表側縁部に係止する係止鍔４ａを一端に突設
し、中心部にはポンプ軸Ｓと嵌合する軸孔５が穿
設せられ、軸孔５にはキー溝６が刻設されてい
る。そしてボス材４の外周面を背板表面１ａ側か
ら前記ボス材嵌着穴２内へ嵌合して、係止鍔４ａ
をボス材嵌着穴２の表側縁部に係止させた状態に
おいて、嵌合部７は嵌着剤により組合されて背板
１とボス材４とが一体となるのである。なお、８
は回り止めピンである。また、背板１には前記ボ
ス材嵌着穴２の外周に沿つて複数個の透孔９…９
を等開度に配設し、内周部に雌ネジ１０を刻設し
た鳩目状金属管１１…１１を上記透孔９…９へ嵌
挿し、かしめまたは接着により背板１と一体に結
合させて羽根車抜き取り構造を構成し、第４図
Ａ，Ｂのようにしてポンプ軸Ｓから羽根車を抜き
取る際に使用するのである。このようにして羽根
車を突き取れば、嵌合部７に衝撃を与えることな
く円滑に抽脱することができ、係止鍔４ａの存在
と相まつて嵌合部７の結合状態を損なうようなこ
とはないのである。[Example] To explain the drawings illustrating the embodiment,
Reference numeral 1 denotes a back plate made of ceramic such as silicon carbide, which has a boss material fitting hole 2 bored in the center and a wing plate 3 protruding from the back plate surface 1a. 4 is a boss material fitted into the boss material fitting hole 2,
A locking collar 4a, which is made of metal or synthetic resin and locks onto the front edge of the boss material fitting hole 2, protrudes from one end, and a shaft hole 5 into which the pump shaft S fits is bored in the center. A key groove 6 is carved in the shaft hole 5. Then, the outer peripheral surface of the boss material 4 is fitted into the boss material fitting hole 2 from the back plate surface 1a side, and the locking flange 4a is
In the state in which the boss material fitting hole 2 is locked to the front side edge of the boss material fitting hole 2, the fitting portion 7 is assembled with a fitting agent, and the back plate 1 and the boss material 4 are integrated. In addition, 8
is a detent pin. Further, the back plate 1 has a plurality of through holes 9...9 along the outer periphery of the boss material fitting hole 2.
The eyelet-shaped metal tubes 11...11, which are arranged at equal opening degrees and have female threads 10 carved on the inner periphery, are inserted into the through holes 9...9 and integrally connected to the back plate 1 by caulking or gluing. This constitutes an impeller extraction structure and is used when extracting the impeller from the pump shaft S as shown in FIGS. 4A and 4B. If the impeller is poked out in this way, it can be extracted smoothly without giving any impact to the fitting part 7, and together with the presence of the locking collar 4a, it is possible to remove the impeller without damaging the connection state of the fitting part 7. That is not the case.
［効果］
本考案によれば、磨耗の激しい羽根板３および
背板１を硬度に富むセラミツク製とすると共に、
精密仕上げを必要とするボス材４は加工性に優れ
た金属または合成樹脂製としたことにより、異種
材料の特性が相剰的に発揮せられ、耐久性に優れ
ると共に製作が容易でキー溝の刻設にも支承な
く、また、背板１に羽根車無抜き取り構造が附設
されているため、嵌合部７に衝撃を与えることな
く円滑に羽根車を抽脱することができるのであ
る。[Effects] According to the present invention, the vane plate 3 and the back plate 1, which are subject to severe wear, are made of ceramic with high hardness,
The boss material 4, which requires precision finishing, is made of metal or synthetic resin, which has excellent workability, so that the characteristics of different materials can be exhibited mutually, and it is durable, easy to manufacture, and has a keyway. Since the engraving does not require any support, and the back plate 1 is provided with a non-removal structure for the impeller, the impeller can be smoothly extracted without applying any impact to the fitting portion 7.
図面は本考案の実施態様を例示したものであ
る。第１図Ａは羽根車の縦断側面図、Ｂは羽根車
の表側から見た平面図である。第２図は本考案羽
根車における背板の縦断側面図、第３図Ａは本考
案羽根車におけるボス材の縦断側面図、Ｂはボス
材の表側から見た平面図である。第４図Ａ，Ｂは
背板に附設せられた羽根車抜き取り構造を使用し
てポンプ軸から羽根車を抜き取る際の状態を例示
した要部縦断側面図である。
１……セラミツク製背板、１ａ……背板表面、
２……ボス材嵌着穴、３……羽根板、４……金属
または合成樹脂製のボス材、４ａ……係止鍔、５
……軸孔、９……透孔、１０……雌ネジ、１１…
…雌ネジ、１１……鳩目状金属管。
The drawings illustrate embodiments of the invention. FIG. 1A is a longitudinal sectional side view of the impeller, and FIG. 1B is a plan view of the impeller seen from the front side. FIG. 2 is a vertical sectional side view of the back plate in the impeller of the present invention, FIG. 3 A is a longitudinal sectional side view of the boss material in the impeller of the present invention, and FIG. 3 B is a plan view of the boss material as seen from the front side. FIGS. 4A and 4B are longitudinal sectional side views of essential parts illustrating a state in which the impeller is removed from the pump shaft using the impeller removal structure attached to the back plate. 1... Ceramic back plate, 1a... Back plate surface,
2... Boss material fitting hole, 3... Wing plate, 4... Boss material made of metal or synthetic resin, 4a... Locking collar, 5
...Shaft hole, 9...Through hole, 10...Female thread, 11...
...female thread, 11...eyelet-shaped metal tube.
Claims (1)
中心部にボス材嵌着穴２を穿設し、該ボス材嵌着
穴２の外周に沿つて複数個の透孔９…９を突設
し、一端に係止鍔４ａを突設し中心部に軸孔５を
穿設した金属または合成樹脂製のボス材４を背板
表面１ａ側から上記ボス材嵌着穴２内へ嵌着して
その表側縁部に係止鍔４ａを係止させ、かつ、内
周部に雌ネジ１０を刻設した鳩目状金属管１１…
１１を前記透孔９…９内に嵌着せしめてなる水中
ポンプ用羽根車。 A boss material fitting hole 2 is bored in the center of the ceramic back plate 1 on which the wing plate 3 is protruded, and a plurality of through holes 9...9 are formed along the outer periphery of the boss material fitting hole 2. A boss material 4 made of metal or synthetic resin, which has a protruding locking collar 4a on one end and a shaft hole 5 in the center, is fitted into the boss material fitting hole 2 from the back plate surface 1a side. An eyelet-shaped metal tube 11 with a locking collar 4a locked on the front edge thereof, and a female thread 10 carved on the inner circumference...
11 fitted into the through holes 9...9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985128137U JPH03560Y2 (en) | 1985-08-21 | 1985-08-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985128137U JPH03560Y2 (en) | 1985-08-21 | 1985-08-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6236293U JPS6236293U (en) | 1987-03-03 |
| JPH03560Y2 true JPH03560Y2 (en) | 1991-01-10 |
Family
ID=31023536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985128137U Expired JPH03560Y2 (en) | 1985-08-21 | 1985-08-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03560Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2720041B2 (en) * | 1988-02-29 | 1998-02-25 | 京セラ株式会社 | Slurry conveying / stirring device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5286502A (en) * | 1976-01-14 | 1977-07-19 | Mitsui Mining & Smelting Co Ltd | Pump |
-
1985
- 1985-08-21 JP JP1985128137U patent/JPH03560Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5286502A (en) * | 1976-01-14 | 1977-07-19 | Mitsui Mining & Smelting Co Ltd | Pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6236293U (en) | 1987-03-03 |
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