JPS5872692A - Pump - Google Patents
PumpInfo
- Publication number
- JPS5872692A JPS5872692A JP17007081A JP17007081A JPS5872692A JP S5872692 A JPS5872692 A JP S5872692A JP 17007081 A JP17007081 A JP 17007081A JP 17007081 A JP17007081 A JP 17007081A JP S5872692 A JPS5872692 A JP S5872692A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- bearing
- pump
- parts
- hollow part
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0606—Canned motor pumps
- F04D13/064—Details of the magnetic circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0606—Canned motor pumps
- F04D13/0633—Details of the bearings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、製作が容易であると共に良好な運転特性を有
するポンプ構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pump structure that is easy to manufacture and has good operating characteristics.
給湯の循環や少量の排水に用いられるポンプは、一般的
に小形軽量に構成されるが小出力の割に電力消費が大き
くなるといった効率の悪い問題を有していた。Pumps used for circulating hot water or discharging small amounts of water are generally small and lightweight, but they have had the problem of low efficiency, such as high power consumption despite their small output.
この効率の悪《なる要因社、小形の電動機は巻線抵抗が
大きくなるため銅損が増加して効率が悪化することおよ
び軸封装置や軸受の摩擦損失の割合が増加するためであ
る。The reason for this poor efficiency is that small electric motors have a large winding resistance, which increases copper loss and deteriorates efficiency, and also increases the proportion of friction loss in the shaft sealing device and bearings.
例えば、１０〜１５ワット程度のポンプでは、一般的な
誘導電動機を用いると電力消費が５０〜８０ワツトにな
り効率が悪く連続運転すると電気料金の負担が大きくな
るといった問題を有していた。For example, in a pump of about 10 to 15 watts, if a general induction motor is used, the power consumption is 50 to 80 watts, which is inefficient and continuous operation increases the burden of electricity charges.
このような問題は、電動機による損失はトランジスタモ
ータ等効率のよいものを採用すれば改善され１軸封装置
等ポンプ部分に関連する損失は回転子と羽ｉとを一体に
して軸封装置の不要な構造にして改善することができる
。Such problems can be solved by using a highly efficient motor such as a transistor motor to reduce the loss caused by the motor, and by integrating the rotor and vane I to eliminate the loss associated with the pump part such as a single-shaft sealing device, which eliminates the need for a shaft sealing device. It can be improved by creating a new structure.
しかしながら、軸受については、軸封装置を不要にする
ため回転子を潜水型にすると水中メタルを用いることに
なり摩擦損失が増加する傾向になると共に耐摩耗性を良
好にする配慮が要となる。However, with regard to bearings, if the rotor is made of a submersible type in order to eliminate the need for a shaft sealing device, underwater metal will be used, which tends to increase friction loss and requires consideration to improve wear resistance.
そして、水中メタルを回転子に単独に設けると調心性お
よび加工々数が増加するため小形軽量に構成されるにし
ては高価になるといった欠点を有していた。Furthermore, if the underwater metal is provided independently on the rotor, the alignment and the number of machining operations will increase, so the rotor has the drawback that it becomes expensive even if it is constructed to be small and lightweight.
本発明は、このような事情から小形軽量で製作が容易で
あると共をこ効率がよい良好な運転特性を有するポンプ
を提供することを目的としている。In view of these circumstances, an object of the present invention is to provide a pump that is small, lightweight, easy to manufacture, and has good operating characteristics with high efficiency.
以下、本発明を図面各こ示された一実施例にもとづいて
説明すると、図は本発明の一実施例を示したポンプの縦
断面図である。Hereinafter, the present invention will be explained based on an embodiment shown in the drawings. The figure is a longitudinal sectional view of a pump showing an embodiment of the present invention.
図に２いて、ポンプは、固定子ｌの内周がケース２によ
ってしやへｌｌ／司ｎており、ケース２の一方の端部３
に軸受４が形成され、他方の端部５にケーシング６が取
付けられるよう構成されてンする。In the pump shown in FIG.
A bearing 4 is formed at one end, and a casing 6 is attached to the other end 5.
そして、ケーシング６には軸受７２よび吸水口８と吐出
口９とが設けられている。The casing 6 is provided with a bearing 72, a water intake port 8, and a discharge port 9.
さらに、固定子ｌの磁心に位置する永久磁石ＩＯによる
回転子ｔｔと羽根１２とが一体に形成されて２す、軸受
４，７に支承される軸支部１３゜１４が形成されている
。Further, the rotor tt formed by the permanent magnet IO located at the magnetic core of the stator l and the blade 12 are integrally formed, and shaft supports 13 and 14 supported by the bearings 4 and 7 are formed.
また、回転子１１の軸心部には軸方向の中空部１５が形
成されており、中空部１５の両端部に軸支部１３．１４
が形成されている。Further, an axial hollow part 15 is formed in the axial center of the rotor 11, and shaft supports 13, 14 are provided at both ends of the hollow part 15.
is formed.
回転子１１．羽根１２ｈよび軸支部１３，１４等を一体
に形成するモールド体１６は、樹脂に黒鉛等を含有させ
た物質（ポリアセタール）でｆ）？）、成形容易である
と共に軸受材料として利用できるものである。Rotor 11. The molded body 16 that integrally forms the blade 12h, the shaft supports 13, 14, etc. is made of a material (polyacetal) containing graphite or the like in resin f)? ), it is easy to mold and can be used as a bearing material.
図中の矢印は、水流を示すものであり、比較的微少水量
である。The arrows in the figure indicate water flow, and the amount of water is relatively small.
また、軸支部１３．１４は、回転できる程度の遊間状態
で軸受４，７に支承されており、回転子１１が潜水する
ことから水潤滑するよう構成されている。Further, the shaft supports 13, 14 are supported by the bearings 4, 7 with a looseness that allows them to rotate, and are configured to provide water lubrication since the rotor 11 is submerged.
そして、軸支部１３．１４は、軸受４，７との関係に２
いて軸方向に相丸に凹凸する形状に構成されておればよ
（、軸向きおよび軸方向に支承されればよい。The shaft supports 13 and 14 have a relationship of 2 with the bearings 4 and 7.
It suffices if it is configured to have a concave and convex shape in the axial direction, and is supported in the axial direction and in the axial direction.
このような構成において、ポンプは、固定子ｌが励磁さ
れると永久磁石１０による回転子ｔｔが回転することに
なり、羽根１２＆こよるポンプ作用で吸水口８から吸水
し吐出口９より送水することができる。In such a configuration, in the pump, when the stator l is excited, the rotor tt formed by the permanent magnet 10 rotates, and the pump action of the vanes 12 and the pump draws water from the water intake port 8 and sends water from the discharge port 9. be able to.
そして、ポンプは、永久磁石１０を用いたトランジスタ
電動機を用いることにより高効率で運転することができ
、ケース３を利用して回転子１１を潜水させることによ
り軸封装置が不要となり不要な負荷をなくすることがで
きる。The pump can be operated with high efficiency by using a transistor motor using a permanent magnet 10, and by submerging the rotor 11 using the case 3, a shaft sealing device is unnecessary and unnecessary load is reduced. It can be eliminated.
さらに、軸支部１３．１４は、モールド体１６が軸受材
料として好都合な黒鉛を含有した樹脂で構成されたため
軸受４．７に対する摺動特性が良好となる。Furthermore, since the molded body 16 of the shaft support 13.14 is made of resin containing graphite, which is convenient as a bearing material, the sliding characteristics with respect to the bearing 4.7 are improved.
しかも、ケース３が設けられ回転子１１が潜水すること
から軸支部１３．１４が水潤滑され円滑な軸支特性が得
られる。Moreover, since the case 3 is provided and the rotor 11 is submerged, the shaft supports 13 and 14 are lubricated with water, and smooth shaft support characteristics can be obtained.
このため、不要な負荷が少なくなり運転効率がよくなる
。Therefore, unnecessary loads are reduced and operational efficiency is improved.
また、モールド体１６に黒鉛が含有されているため、し
ばら（運転されると含有された黒鉛が摺動面に露出沈着
して耐摩耗性に優れた軸支部１３．１４′に形成するこ
とになる。In addition, since the molded body 16 contains graphite, the contained graphite may be exposed and deposited on the sliding surface during operation, forming the shaft supports 13 and 14' with excellent wear resistance. Become.
回転子１１は、軸心部に中空部１ｓｔ−形成すると、図
中の矢印の如く吸水と吐出との王力差による微少水流を
生じるため水潤滑が良好になる他内部がよく冷却される
Ｉし不純物を含んだ水が軸支部１３．１４に堆積するこ
とがなく都合がよい。When the rotor 11 is formed with a hollow part 1st in the axial center part, a minute water flow is generated due to the royal force difference between water suction and discharge as shown by the arrow in the figure, which improves water lubrication and improves internal cooling. This is advantageous because water containing impurities does not accumulate on the shaft supports 13 and 14.
そして、中空部１５および軸支部１３．１４は、夫々軸
方向に形成されるためモールド体１６で容易に成形でき
、しかも型抜きも簡単である。Since the hollow portion 15 and the shaft supports 13, 14 are formed in the axial direction, they can be easily molded with the mold body 16, and can also be easily removed from the mold.
さらに、軸支部１３．１４を軸受４，７と共に軸方向の
凹凸で形成すれば本実施例に限定されることなく任意の
形状にすることができる。Furthermore, if the shaft supports 13 and 14 are formed with axial unevenness along with the bearings 4 and 7, any shape can be formed without being limited to this embodiment.
例えば、ケース３の軸受４，７ｔ−回転子１１の中空部
１５に嵌入する突起で形成しても同様の効果金得ること
ができる。For example, the same effect can be obtained by forming a protrusion that fits into the hollow portion 15 of the bearings 4 and 7t of the case 3 and the rotor 11.
以上説明の通り本発明によれば、固定子内周をしやへい
すると共に回転子に一体に羽根を設けるポンプにおいて
、羽根と回転子とを一体に形成するモールド体をカーボ
ン等軸受材料全含有する樹脂で構成したため軸受性能を
向上させることができ、運転効率がよくなる他耐久性に
もゆれ、しかも回転子軸心部に中空部を形成することに
よりその冷却、ｌｌｌ滑の効果が促進されきわめて効率
のよいポンプを得ることができる。As explained above, according to the present invention, in a pump in which the inner periphery of the stator is made stiff and the blades are integrally formed on the rotor, the molded body that integrally forms the blades and the rotor is made entirely of bearing material such as carbon. The bearing performance can be improved because it is made of resin, which improves operating efficiency and durability.Furthermore, by forming a hollow part in the rotor shaft center, cooling and lll sliding effects are promoted, making it extremely effective. You can get a more efficient pump.
図は本発明の一実施例を示すポンプの縦断面図である。
２・・・・・・ケース、ｌｌ・・・・・・回転子、
１２・・・・・・羽根車、 １３．１４・・・・・・
軸支部、 １５・・・・・・中空部、 １６・・・
・・・モールド体。
特許出願人
株式会社芝浦製作所
＋２ ／ ＋４１ｂ１０１１１６The figure is a longitudinal sectional view of a pump showing an embodiment of the present invention. 2...Case, ll...Rotor,
12... Impeller, 13.14...
Axial support, 15...Hollow part, 16...
...Mold body. Patent applicant Shibaura Seisakusho Co., Ltd. +2 / +41b101116
Claims (2)
体に羽根を設けるポンプにおいて、カーボン等軸受材料
を含有する樹脂で回転子に一体に羽根を形成すると共に
両端部に軸支部ｔ−影形成たことを特徴とするポンプ。(1) In a pump in which the inner periphery of the stator is shielded and blades are integrally formed with the rotor, the blades are formed integrally with the rotor using resin containing a bearing material such as carbon, and shaft supports T- A pump characterized by shadow formation.
端部に軸子部を形成したことを特徴とする特許(2) A patent characterized in that the rotor shaft center portion t4+ is formed in the air and shaft portions are formed at both ends of the hollow portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17007081A JPS5872692A (en) | 1981-10-26 | 1981-10-26 | Pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17007081A JPS5872692A (en) | 1981-10-26 | 1981-10-26 | Pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5872692A true JPS5872692A (en) | 1983-04-30 |
| JPH0128235B2 JPH0128235B2 (en) | 1989-06-01 |
Family
ID=15898072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17007081A Granted JPS5872692A (en) | 1981-10-26 | 1981-10-26 | Pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5872692A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60142095A (en) * | 1983-12-28 | 1985-07-27 | Shibaura Eng Works Co Ltd | Pump |
| JPS61283791A (en) * | 1985-06-03 | 1986-12-13 | Sanyo Electric Co Ltd | Pump rotator |
| EP0207430A2 (en) * | 1985-07-01 | 1987-01-07 | EASTHORPE INVESTMENTS Ltd. | Centrifugal pump |
| WO2007014807A1 (en) * | 2005-08-04 | 2007-02-08 | BSH Bosch und Siemens Hausgeräte GmbH | Pump body, pump and a water supply household appliance |
| EP2072826A1 (en) * | 2007-12-17 | 2009-06-24 | Grundfos Management A/S | Rotor for a canned motor |
-
1981
- 1981-10-26 JP JP17007081A patent/JPS5872692A/en active Granted
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60142095A (en) * | 1983-12-28 | 1985-07-27 | Shibaura Eng Works Co Ltd | Pump |
| JPS61283791A (en) * | 1985-06-03 | 1986-12-13 | Sanyo Electric Co Ltd | Pump rotator |
| EP0207430A2 (en) * | 1985-07-01 | 1987-01-07 | EASTHORPE INVESTMENTS Ltd. | Centrifugal pump |
| WO2007014807A1 (en) * | 2005-08-04 | 2007-02-08 | BSH Bosch und Siemens Hausgeräte GmbH | Pump body, pump and a water supply household appliance |
| DE102005036818B4 (en) * | 2005-08-04 | 2015-03-05 | BSH Bosch und Siemens Hausgeräte GmbH | Pump housing, pump and water-conducting household appliance |
| EP2072826A1 (en) * | 2007-12-17 | 2009-06-24 | Grundfos Management A/S | Rotor for a canned motor |
| WO2009077076A1 (en) * | 2007-12-17 | 2009-06-25 | Grundfos Management A/S | Rotor for a canned motor |
| US9429164B2 (en) | 2007-12-17 | 2016-08-30 | Grundfos Management A/S | Rotor for a canned motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0128235B2 (en) | 1989-06-01 |
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