JPS6329905Y2 - - Google Patents
Info
- Publication number
- JPS6329905Y2 JPS6329905Y2 JP1984199797U JP19979784U JPS6329905Y2 JP S6329905 Y2 JPS6329905 Y2 JP S6329905Y2 JP 1984199797 U JP1984199797 U JP 1984199797U JP 19979784 U JP19979784 U JP 19979784U JP S6329905 Y2 JPS6329905 Y2 JP S6329905Y2
- Authority
- JP
- Japan
- Prior art keywords
- pump
- magnetically attracted
- motor
- magnetic
- magnetic attraction
- 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
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- 238000005192 partition Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000001179 sorption measurement Methods 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、デイスク型マグネツトポンプに関す
る。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a disc-type magnetic pump.
従来の技術
電動ポンプとして、モータ側とポンプ側とを仕
切り板で仕切つて磁力吸引によるポンプ駆動とし
たマグネツトポンプが知られている。従来のマグ
ネツトポンプは、二重の円筒状体を同心円状に設
けて、その半径方向に磁力吸引した円筒型マグネ
ツトポンプと、円板状体を対向して軸方向に磁力
吸引したデイスク型マグネツトポンプとがある。BACKGROUND ART As an electric pump, a magnet pump is known in which the motor side and the pump side are separated by a partition plate and the pump is driven by magnetic attraction. Conventional magnetic pumps are two types: cylindrical magnetic pumps, which have double cylindrical bodies arranged concentrically and are magnetically attracted in the radial direction, and disk-type pumps, which have disc-shaped bodies facing each other and are magnetically attracted in the axial direction. There is a magnetic pump.
考案が解決しようとする問題点
しかし、前者の円筒型マグネツトポンプでは、
モータ、ポンプの軸部にスラスト荷重がかからな
い点では好ましいが、装置が長くなつて小型化す
るのに限界があつた。また、後者のデイスク型マ
グネツトポンプでは、装置が長くならずに短くで
きて小型化できるが、モータ側の磁力吸引部とポ
ンプ側の磁力被吸引部との間隔を一定としている
ため、ポンプが軽負荷で使用されるときが多いに
もかかわらず、モータやポンプの軸部に常時ほぼ
最大のスラスト荷重がかかり、軸受部の耐久性に
問題が生じるものであつた。Problems that the invention aims to solve However, with the former cylindrical magnetic pump,
Although this is advantageous in that no thrust load is applied to the shafts of the motor or pump, it increases the length of the device and limits its miniaturization. In addition, with the latter type of disk-type magnetic pump, the device can be made shorter and more compact, but the distance between the magnetically attracted part on the motor side and the magnetically attracted part on the pump side is constant, so the pump Even though they are often used under light loads, the shafts of the motors and pumps are always subject to almost the maximum thrust load, causing problems in the durability of the bearings.
さらに、マグネツトポンプの問題としては、磁
気吸引力に限界があるもので、ポンプ負荷が大き
くなつた場合には、モータ側の磁力被吸引部とポ
ンプ側の磁力被吸引部とが捻れ合う状態となつて
さらに磁気吸引力が弱くなる欠点が生じるもので
あつた。 Furthermore, a problem with magnetic pumps is that there is a limit to the magnetic attraction force, and when the pump load increases, the magnetically attracted part on the motor side and the magnetically attracted part on the pump side become twisted. As a result, there was a further drawback that the magnetic attraction force was weakened.
問題点を解決するための手段
本考案は上記のような点に鑑みたもので、モー
タ、ポンプの軸方向に磁力吸引してインペラを回
転駆動自在に形成したデイスク型のマグネツトポ
ンプのモータ側の磁力吸引部とポンプ側の磁力被
吸引部との間隔を可変に配設するとともに、ポン
プの負荷が小さいときに上記間隔を広く、ポンプ
の負荷が大きいときに上記間隔を狭く接近可能に
モータ側の磁力吸引部またはポンプ側の磁力被吸
引部を移動自在に形成して、デイスク型のマグネ
ツトポンプであるにもかかわらず、ポンプの軽負
荷時にモータやポンプの軸受部にできだけ小さな
スラスト荷重がかかるようにして軸受部の耐久性
がはかれ、またポンプの大きな負荷時にあつては
できるだけ磁気吸引力を大きくできてポンプ駆動
できるデイスク型マグネツトポンプを提供するに
ある。Means for Solving the Problems The present invention was developed in view of the above-mentioned points.The present invention is based on the motor side of a disk-type magnetic pump in which the impeller is formed to be rotatably driven by magnetic attraction in the axial direction of the motor and pump. The distance between the magnetically attracted part of the pump and the magnetically attracted part of the pump side is variably arranged, and the distance is widened when the pump load is small, and narrowed when the pump load is large so that the motor can approach the motor. The magnetically attracted part on the side or the magnetically attracted part on the pump side is formed to be movable, and even though it is a disc-type magnetic pump, the thrust is as small as possible on the motor and pump bearing part when the pump is under light load. To provide a disk type magnetic pump which can increase the durability of a bearing part by applying a load and can drive the pump by increasing the magnetic attraction force as much as possible when the pump is under a large load.
実施例 以下、本考案を実施例にもとづいて説明する。Example The present invention will be explained below based on examples.
第１図、第２図は、本考案の温水循環用の小型
のマグネツトポンプの一実施例である。マグネツ
トポンプ１は、第１図のようにモータ２側にポン
プ３のデイスク状のインペラ４を磁力吸引して駆
動自在としているものである。ポンプ３は、ポリ
プロピレンのポンプケーシング５にフエライトマ
グネツトの永久磁石６を埋設したデイスク状の磁
力被吸引部７をインペラ４に結合して内装してい
て、インペラ４をモータ１とポンプ３との仕切り
板８に突設した枢支軸９に枢着している。インペ
ラ４は、第２図のように中心部に円筒状の軸装部
１０を装着して上記枢支軸９に嵌装していて、軸
装部１０の外側部にデイスク状の磁力被吸引部７
をポンプ回転方向とは反対方向に穿設したポール
ねじのようなねじ結合手段１１によつてポンプ軸
方向にやや摺動可能に螺着結合としている。そし
て、磁力被吸引部７の内周部のモータ側には、図
のように短い長さの所定の押圧力のコイルスプリ
ングのような弾性材１２をやや突出して磁力被吸
引部７のストツパーを兼ねた軸装部１０の突設部
１３に一端を当接して介装し、ポンプ３が転負荷
のときには、磁力被吸引部７をモータ側の磁力吸
引部１４から遠ざけるため仕切り板８から離れる
ようにポンプ側へ押動し、ポンプ３の負荷が大き
くなるときには、弾性材１２に抗して上記ねじ結
合手段１１を介して磁力被吸引部７を磁力吸引部
１４に近ずけるために仕切り板８に近接するよう
に回転トルクにより移動自在としている。１５
は、水もれ防止用シールリング、１６は、ポンプ
吸入口、１７は、ポンプ吐出口である。一方、モ
ータ２は、モータケーシング１８の中央部にイン
ナーロータ１９のモータ駆動部２０を配設してい
て、軸受部２１を介して枢着したモータ駆動軸２
２のポンプ側の端部に薄円板状のフエライトマグ
ネツト２３を取着した上記の磁力吸引部１４を取
着し、仕切り板８を介してポンプ３のインペラ４
の磁力被吸引部７を磁力吸引して、ポンプ３を駆
動自在としているものである。 FIGS. 1 and 2 show an embodiment of a small magnetic pump for hot water circulation according to the present invention. As shown in FIG. 1, the magnetic pump 1 is capable of being freely driven by magnetically attracting a disc-shaped impeller 4 of a pump 3 to a motor 2 side. The pump 3 has a disk-shaped magnetic attraction part 7 in which a permanent magnet 6 of ferrite magnet is embedded in a polypropylene pump casing 5 and is connected to an impeller 4. The impeller 4 is connected to the motor 1 and the pump 3. It is pivotally connected to a pivot shaft 9 protruding from the partition plate 8. As shown in FIG. 2, the impeller 4 has a cylindrical shaft part 10 attached to the center, which is fitted onto the pivot shaft 9, and a disc-shaped magnetically attracted part on the outside of the shaft part 10. Part 7
are threadedly connected so as to be slightly slidable in the axial direction of the pump by means of a screw connecting means 11 such as a pole screw bored in the direction opposite to the direction of rotation of the pump. Then, as shown in the figure, an elastic member 12 such as a coil spring with a predetermined pressing force of a short length is slightly protruded from the inner peripheral part of the magnetically attracted part 7 on the motor side, and a stopper of the magnetically attracted part 7 is fixed. One end is interposed in contact with the protruding part 13 of the shaft mounting part 10 which also serves as a shaft mounting part 10, and when the pump 3 is under load, it separates from the partition plate 8 in order to keep the magnetically attracted part 7 away from the magnetically attracted part 14 on the motor side. When the pump 3 is pushed toward the pump side and the load on the pump 3 increases, a partition is provided to move the magnetically attracted part 7 closer to the magnetically attracted part 14 via the screw coupling means 11 against the elastic member 12. It is movable by rotational torque so as to approach the plate 8. 15
1 is a seal ring for preventing water leakage, 16 is a pump suction port, and 17 is a pump discharge port. On the other hand, the motor 2 has a motor drive section 20 of an inner rotor 19 disposed in the center of the motor casing 18, and a motor drive shaft 2 pivotally connected via a bearing section 21.
The above-mentioned magnetic attraction part 14 having a thin disc-shaped ferrite magnet 23 attached thereto is attached to the pump side end of the pump 2, and the impeller 4 of the pump 3 is attached via the partition plate 8.
The pump 3 can be freely driven by magnetically attracting the magnetically attracted portion 7 of the pump.
作 用
しかして、上記マグネツトポンプ１を温水循環
用として使用すると、ポンプ３が高速回転の、転
負荷のときには、インペラ４の磁力被吸引部７が
第２図のように弾性材１２に押圧されてインペラ
４側に近接し、仕切り板８より遠く位置するもの
である。したがつて、モータ側の磁力吸引部とポ
ンプ側の磁力被吸引部との磁力カツプリングの磁
力吸引力が小さい状態で使用でき、モータやポン
プの軸受部への負荷を軽減できて、耐久性を高め
られるものである。Function When the magnetic pump 1 is used for hot water circulation, when the pump 3 rotates at high speed and is under load, the magnetic attraction part 7 of the impeller 4 presses against the elastic member 12 as shown in FIG. It is located close to the impeller 4 side and further away than the partition plate 8. Therefore, the magnetic coupling between the magnetic attraction part on the motor side and the magnetically attracted part on the pump side can be used in a state where the magnetic attraction force is small, reducing the load on the bearings of the motor and pump, and improving durability. It can be enhanced.
一方、ポンプ３の負荷が大きくなつてくると、
ポンプ３は所定の特性曲線にしたがつて回転数が
下がり、インペラ４と磁力吸引部１４で吸引され
る磁力被吸引部７の磁力との偶力によつて、ポン
プ回転方向と反対に穿設したねじ結合手段１１で
結合した磁力被吸引部７を弾性材１２に抗して第
２図の１点鎖線のように仕切り板８側に押動し、
磁力吸引部１４との間隔を少なくするものであ
る。そのため、モータ側の磁力吸引部とポンプ側
の磁力被吸引部との磁気吸着力を高められ、従来
のような磁力間の捻れによるずれをより少なくで
きて、より強力な磁力カツプリングのマグネツト
ポンプにできるものである。 On the other hand, as the load on pump 3 increases,
The rotation speed of the pump 3 decreases according to a predetermined characteristic curve, and the pump 3 is drilled in the opposite direction to the pump rotation direction by the force of the impeller 4 and the magnetic force of the magnetically attracted part 7 attracted by the magnetically attracted part 14. Push the magnetically attracted part 7 connected by the screw connecting means 11 against the elastic member 12 toward the partition plate 8 as shown by the dashed line in FIG.
This is to reduce the distance from the magnetic attraction section 14. Therefore, the magnetic adsorption force between the magnetic attraction part on the motor side and the magnetic attraction part on the pump side is increased, and the deviation due to twisting between the magnetic forces can be reduced, making it possible to create a magnet pump with a stronger magnetic coupling. It is something that can be done.
他の実施例
第３図は本考案の他の実施例で、モータ側の磁
力吸引部１４を移動自在としたものである。本実
施例においては、モータ駆動軸２２の端部にデイ
スク状の磁力吸引部１４をモータ回転方向に穿設
したボールねじのようなねじ結合手段１１によつ
てモータ駆動軸方向にやや摺動可能に螺着結合と
している。１２は、上記したような磁力吸引部１
４をポンプ側から遠ざけるための所定の押圧力の
弾性材で、一端を磁力吸引部１４のストツパーを
かねたモータ駆動軸端に取着したボルトのような
係止具２４に当接している。Other Embodiments FIG. 3 shows another embodiment of the present invention, in which the magnetic attraction section 14 on the motor side is made movable. In this embodiment, a disk-shaped magnetic attraction part 14 is drilled in the end of the motor drive shaft 22 in the direction of motor rotation by means of a threaded coupling means 11 such as a ball screw, which allows the motor drive shaft 22 to slide slightly in the direction of the motor drive shaft. It has a screw connection. 12 is the magnetic attraction part 1 as described above.
It is made of an elastic material with a predetermined pressing force to move the magnetic attraction part 14 away from the pump side, and its one end is in contact with a bolt-like locking tool 24 attached to the end of the motor drive shaft which also serves as a stopper for the magnetic attraction part 14.
本実施例では、モータ駆動用のインナーロータ
ーと磁力吸着部とが予め分離しているので、ポン
プ側のように特に分割させる必要もなく、簡単に
行えるるものである。 In this embodiment, since the inner rotor for driving the motor and the magnetic attraction section are separated in advance, there is no need to separate them like on the pump side, and this can be easily done.
以上の実施例では、モータ部としてインナーロ
ータのロータ軸駆動によるデイスク型のマグネツ
トポンプについて説明したが、実開昭54−132003
号公報等のようにモータ駆動軸がなく、直接ステ
ータコアでポンプを駆動自在としたマグネツトポ
ンプについても、第１実施例のようにして適用す
ることができるものである。 In the above embodiment, a disc-type magnetic pump using an inner rotor driven by a rotor shaft was explained as a motor part.
The first embodiment can also be applied to a magnetic pump that does not have a motor drive shaft and can be driven directly by a stator core, as disclosed in the above publication.
また、上記実施例では、ねじ結合手段としてボ
ールねじを使用したが、所定のピツチのスクリユ
ウねじ等のねじ結合とすることもできるものであ
る。 Further, in the above embodiment, a ball screw is used as the screw connection means, but a screw connection such as a screw screw of a predetermined pitch may also be used.
なお、マグネツトポンプとして、温水循環のも
とを示したが、他の用途のものについても同様に
適用できるものである。 Although the magnet pump used for hot water circulation is shown, it can be similarly applied to other uses.
考案の効果
以上のように本実施例にあつては、デイスク型
のマグネツトポンプで装置を小型に形成できると
ともに、デイスク型のマグネツトポンプであるに
もかかわらず、ポンプの軽負荷時にモータ、ポン
プの軸受部にかかるスラスト荷重をできるだけ低
減でき、かつポンプの大きな負荷時にあつては磁
力吸引を大きくできて、より強力にポンプ駆動す
ることができるものである。Effects of the invention As described above, in this embodiment, the device can be made compact using a disk-type magnetic pump, and even though it is a disk-type magnetic pump, when the pump is under a light load, the motor The thrust load applied to the bearing portion of the pump can be reduced as much as possible, and when the pump is under a large load, the magnetic attraction can be increased, and the pump can be driven more powerfully.
第１図は本考案の一実施例の一部省略した側断
面図面、第２図は同上のインペラの磁力被吸引部
の拡大側断面図、第３図は同上の他の実施例のモ
ータ側の磁力吸引部の拡大側断面図である。
１……マグネツトポンプ、２……モータ、３…
…ポンプ、４……インペラ、７……磁力被吸引
部、１２……弾性材、１４……磁力吸引部、２２
……モータ駆動部。
Fig. 1 is a partially omitted side cross-sectional view of an embodiment of the present invention, Fig. 2 is an enlarged side cross-sectional view of the magnetically attracted part of the same impeller, and Fig. 3 is the motor side of another embodiment of the same. FIG. 3 is an enlarged side cross-sectional view of the magnetic attraction section of FIG. 1...Magnetic pump, 2...Motor, 3...
... Pump, 4... Impeller, 7... Magnetic attraction part, 12... Elastic material, 14... Magnetic attraction part, 22
...Motor drive unit.
Claims (1)
部をデイスク状に形成し、モータ、ポンプの軸方
向に対向して磁力吸引してポンプのインペラを回
転駆動自在としたデイスク型のマグネツトポンプ
において、ポンプのインペラにデイスク状の磁力
被吸引部をやや摺部可能にかつインペラの回転方
向と反対方向にねじ結合手段によつて螺合して取
着するとともに磁力被吸引部をモータ側から離れ
るように押圧付勢の弾性材を配設、またはモータ
駆動軸の端部にデイスク状の磁力吸引部をやや摺
部可能にかつモータ回転方向と反対方向にねじ結
合手段によつて螺合して取着するとともに磁力吸
引部をポンプ側から離れるように押圧付勢の弾性
材を配設し、ポンプ負荷が小さいときに上記弾性
材によつて磁力被吸引部と磁力吸引部との間隔を
遠ざけて広く、ポンプの負荷が大きくなつたとき
に上記ねじ結合手段によつて磁力被吸引部と磁力
吸引部との間隔を近づけて狭く遠近自在にポンプ
側の磁力被吸引部またはモータ側の磁力吸引部を
移動自在に設けたことを特徴とするデイスク型マ
グネツトポンプ。 A disk-type magnetic pump in which the magnetically attracted part on the motor side and the magnetically attracted part on the pump side are formed in a disk shape, and the motor and pump are opposed to each other in the axial direction and the pump's impeller can be freely rotated by attracting the magnetic force. In this method, a disk-shaped magnetically attracted part is attached to the impeller of the pump so that it can slide slightly and is threaded in the opposite direction to the rotational direction of the impeller using a screw coupling means, and the magnetically attracted part is attached from the motor side. An elastic member is provided to push the motor apart, or a disk-shaped magnetic attraction part is screwed onto the end of the motor drive shaft so that it can slide slightly and is screwed in the opposite direction to the motor rotation direction. At the same time, an elastic material is arranged to press and bias the magnetic attraction part away from the pump side, and when the pump load is small, the elastic material reduces the distance between the magnetic attraction part and the magnetic attraction part. When the load on the pump becomes large, the screw connection means brings the magnetically attracted part closer to the magnetically attracted part so that the distance between the magnetically attracted part and the magnetically attracted part can be narrowed. A disc-type magnetic pump characterized by a movable suction section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984199797U JPS6329905Y2 (en) | 1984-12-26 | 1984-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984199797U JPS6329905Y2 (en) | 1984-12-26 | 1984-12-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61113995U JPS61113995U (en) | 1986-07-18 |
| JPS6329905Y2 true JPS6329905Y2 (en) | 1988-08-10 |
Family
ID=30760054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984199797U Expired JPS6329905Y2 (en) | 1984-12-26 | 1984-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6329905Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2832917B2 (en) * | 1991-11-27 | 1998-12-09 | 株式会社三協精機製作所 | Water heater pump |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6114495A (en) * | 1984-06-29 | 1986-01-22 | Shibaura Eng Works Co Ltd | Pump apparatus |
-
1984
- 1984-12-26 JP JP1984199797U patent/JPS6329905Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6114495A (en) * | 1984-06-29 | 1986-01-22 | Shibaura Eng Works Co Ltd | Pump apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61113995U (en) | 1986-07-18 |
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