JPH0227881Y2 - - Google Patents
Info
- Publication number
- JPH0227881Y2 JPH0227881Y2 JP1985131697U JP13169785U JPH0227881Y2 JP H0227881 Y2 JPH0227881 Y2 JP H0227881Y2 JP 1985131697 U JP1985131697 U JP 1985131697U JP 13169785 U JP13169785 U JP 13169785U JP H0227881 Y2 JPH0227881 Y2 JP H0227881Y2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- rotating body
- joint
- stirrer
- shaped conductor
- 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
- 238000003756 stirring Methods 0.000 claims description 35
- 239000004020 conductor Substances 0.000 claims description 19
- 238000005192 partition Methods 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 5
- 239000010962 carbon steel Substances 0.000 claims description 5
- 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
- 239000000696 magnetic material Substances 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 description 10
- 230000004907 flux Effects 0.000 description 9
- 238000007789 sealing Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000008223 sterile water Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、撹拌槽内に設けられた回転羽根等の
回転体によつて撹拌を行なう撹拌機の特に回転体
の駆動装置に関し、発酵槽、培養槽その他の密閉
型槽類の撹拌機に使用して好適のものである。[Detailed description of the invention] (Field of industrial application) The present invention relates to a stirrer that performs stirring by a rotating body such as a rotary blade installed in a stirring tank, particularly a drive device for a rotating body, and is used in a fermentation tank. It is suitable for use in stirrers for culture tanks and other closed tanks.
（従来の技術）
近年、食品、医薬、ニユーバイオテクノロジー
等の分野で使用される機器設備に関して、密閉系
をいかに保つかが重要な問題となつており、その
要求も強くなつている。発酵槽、培養槽その他の
槽類も、密閉型となり、そこで使用される撹拌機
も、それに対応する構造、機能を満足しなければ
ならない。(Prior Art) In recent years, how to maintain a closed system for equipment and equipment used in the fields of food, medicine, new biotechnology, etc. has become an important issue, and the demand for this has also become stronger. Fermentation tanks, culture tanks, and other tanks must also be closed, and the agitators used there must also satisfy the corresponding structure and function.
従来の撹拌機は、第４図に示すように、撹拌機
１の撹拌槽２内に配設された撹拌羽根３を、該撹
拌槽２に設置されたモータ等の駆動機４によつ
て、軸継手５及び軸６を介して駆動するように構
成されていた。ところが、このような構造のもの
では、軸６は撹拌槽２の壁を貫通して設けられて
いるため、該貫通部分には、槽２内の密封を保つ
ために軸封機構７が設けられている。 As shown in FIG. 4, in the conventional stirrer, the stirring blades 3 disposed in the stirring tank 2 of the stirrer 1 are driven by a drive device 4 such as a motor installed in the stirring tank 2. It was configured to be driven via a shaft coupling 5 and a shaft 6. However, in such a structure, since the shaft 6 is provided to penetrate the wall of the stirring tank 2, a shaft sealing mechanism 7 is provided at the penetrating portion in order to keep the inside of the tank 2 sealed. ing.
上記の軸封機構には、通常、第５図に示すよう
なグランドパツキン７ａや、第６図に示すような
メカニカルシール７ｂが用いられ、また該メカニ
カルシール７ｂには、摺動部分の潤滑と冷却のた
めに注水が行われている。なお、図中、２ａは駆
動機４の架台を示す。 The above-mentioned shaft sealing mechanism usually uses a gland packing 7a as shown in FIG. 5 or a mechanical seal 7b as shown in FIG. Water is being injected for cooling. In addition, in the figure, 2a indicates the pedestal of the drive machine 4.
また、撹拌羽根に固定された従動側永久磁石を
回転自在に保持し、隔壁を介して、モータに連結
された駆動側永久磁石を対向させた磁気継手を備
えた撹拌装置も従来公知である。（実開昭53−
45344号公報参照）
（考案が解決しようとする問題点）
上記した従来の撹拌機においては、撹拌槽内の
回転体を駆動する軸が該撹拌槽の内部と外部を貫
通して設けられているため、該貫通部には前記し
たような軸封機構を必要としていた。 Also, a stirring device is conventionally known that includes a magnetic joint in which a driven permanent magnet fixed to a stirring blade is rotatably held, and a driving permanent magnet connected to a motor is opposed to the magnetic coupling via a partition wall. (Jitsukai 53-
(Refer to Publication No. 45344) (Problems to be solved by the invention) In the above-mentioned conventional stirrer, the shaft that drives the rotating body in the stirring tank is provided to penetrate the inside and outside of the stirring tank. Therefore, the penetrating portion requires a shaft sealing mechanism as described above.
ところがこれらの軸封機構は、完全無漏洩では
なく、洩れるものであり、又洩れを最小限にする
ための保守、管理が必要である。他方、軸封機構
を設けることにより、構造が複雑になり、又それ
により隙間の狭い部分が多くなり、その部分に侵
入した液体が、槽内の液体との交換が行なわれな
いで、腐り、そのため、特に食品分野では致命的
な問題となつた。 However, these shaft sealing mechanisms are not completely leak-free, but do leak, and require maintenance and management to minimize leakage. On the other hand, by providing a shaft sealing mechanism, the structure becomes complicated, and as a result, there are many parts with narrow gaps, and the liquid that enters into these parts is not exchanged with the liquid in the tank, causing it to rot. Therefore, it has become a fatal problem, especially in the food field.
また軸封部分には、用途によつては前記のよう
に注水を必要とすることがあるが、該注水用には
無菌水を用意しなければならず、又注水配管系が
必要となり、付帯設備を含めて保守、管理が必要
となる。他方、槽は、必ず殺菌、洗浄を行なう
が、軸封機構があると、その部分は構造が複雑な
ため、分解に労力を要し、完全な殺菌、洗浄は難
しいという問題があつた。 In addition, depending on the application, the shaft seal may require water injection as described above, but sterile water must be prepared for this water injection, and a water injection piping system is required. Maintenance and management are required, including equipment. On the other hand, the tank must be sterilized and cleaned, but if there is a shaft sealing mechanism, the structure of that part is complex, so disassembly requires effort, and complete sterilization and cleaning are difficult.
また、上記したも従来公知の磁気継手を備えた
撹拌装置においては、駆動側と従動側に共に永久
磁石を使用した同期型継手を使用しているため、
駆動側の回転数と従動側の回転数は常に同一（相
対速度０）で、伝達されるトルクも一定である。 In addition, in the above-mentioned stirring device equipped with a conventionally known magnetic joint, synchronous joints using permanent magnets are used on both the driving side and the driven side.
The number of rotations on the driving side and the number of rotations on the driven side are always the same (relative speed 0), and the transmitted torque is also constant.
従つて、撹拌槽内の液の粘性が温度によつて変
化するなどして、該継手に、設定された以上の負
荷がかかつた場合、互いに対向する磁石の吸引力
が外れて、従動側は回転しなくなる（一般に脱調
現象という。）。また、この状態で運転すると、振
動が発生し、撹拌機に損傷を与えることになり、
しかも長時間運転すると、永久磁石の磁力が低下
してしまうという問題点があつた。 Therefore, if the viscosity of the liquid in the stirring tank changes depending on the temperature and a load higher than the set value is applied to the joint, the attractive force of the mutually opposing magnets will be removed and the driven side stops rotating (generally called the step-out phenomenon). Also, if you operate in this condition, vibration will occur and damage the agitator.
Moreover, there was a problem in that the magnetic force of the permanent magnet decreased when operated for a long time.
本考案は、上記した従来の撹拌機における駆動
機側の回転力の伝達を機械的に伝達する軸及び軸
接手類を使用しないようにすることによつて、軸
封機構を備えたことによる上記のような問題点を
解消すると共に、上記した従来の磁気継手の問題
点を解決した継手装置を備えた撹拌機を提供する
ことを技術的課題としている。 The present invention achieves the above-mentioned conventional agitator by providing a shaft sealing mechanism by eliminating the use of a shaft and shaft joints that mechanically transmit the rotational force on the driving machine side. The technical object is to provide a stirrer equipped with a coupling device that solves the above-mentioned problems of the conventional magnetic coupling.
（問題点を解決するための手段）
本考案は上記のような従来技術の問題点及び技
術的課題を解決するために、永久磁石を組み込ん
だ継手を駆動機によつて回転させるようにして設
け、該継手に組み込まれた永久磁石に対向して、
撹拌槽内の回転体に組み込まれた板状導電体を回
転自在に支持して設け、これらの中間位置に、撹
拌槽に取り付けられ駆動機側と回転体側とを仕切
る非磁性体からなる仕切りケーシングを設け、前
記駆動機側の継手に組み込まれた永久磁石の回転
により上記板状導電体に渦電流を発生させ、これ
によつて回転体を駆動させるようにしたことを特
徴としている。なお、実施に当つては、前記板状
導電体は銅板によつて構成され、炭素鋼を介し
て、仕切りケーシングに支持された回転体に取付
けられ、また継手に組み込まれた永久磁石は、直
方体形の板状の永久磁石を偶数個、表面にＮ極と
Ｓ極が交互に現われるように放射状に配列されて
いることが望ましい。(Means for Solving the Problems) In order to solve the problems and technical problems of the prior art as described above, the present invention provides a joint incorporating a permanent magnet that is rotated by a drive machine. , facing a permanent magnet incorporated in the joint,
A plate-shaped conductor incorporated in the rotating body in the stirring tank is rotatably supported, and a partition casing made of a non-magnetic material is attached to the stirring tank and partitions the drive machine side and the rotating body side at an intermediate position between these parts. The present invention is characterized in that an eddy current is generated in the plate-shaped conductor by the rotation of a permanent magnet incorporated in the joint on the driving machine side, thereby driving the rotating body. In actual practice, the plate-shaped conductor is made of a copper plate, which is attached to a rotating body supported by a partition casing through carbon steel, and the permanent magnet incorporated in the joint is a rectangular parallelepiped. It is desirable that an even number of plate-shaped permanent magnets be arranged radially so that north and south poles appear alternately on the surface.
（作用）
本考案は、上記のように構成したことにより、
駆動機が未だ起動されず回転体が静止している状
態においては、継手に組み込まれた永久磁石と、
それに対向して支持された板状導電体との間に
は、中間に介在された非磁性体からなる仕切りケ
ーシングを直角に貫通して磁界が形成される。(Function) The present invention is configured as described above, so that
When the drive machine is not started yet and the rotating body is stationary, the permanent magnet built into the joint,
A magnetic field is formed between the plate-shaped conductor and the plate-shaped conductor supported opposite thereto, passing through the partition casing made of a non-magnetic material interposed in the middle at right angles.
次いで、駆動機を回転させると、永久磁石を組
み込んだ継手が一体になつて回転し、それにつれ
て、前記板状導電体との間に相対運動が生じるの
で、上記した永久磁石の面から出る磁束が板状導
電体により直角方向に切られることになる。従つ
て該板状導電体には電磁誘導によつて、渦電流が
発生し、それによつて該板状導電体に回転力が生
じる。該板状導電体は回転体に一体に組み込まれ
ているので、上記回転力によつて該回転体が撹拌
槽内で回転し、槽内の物質の撹拌作用を行なう。 Next, when the drive machine is rotated, the joint incorporating the permanent magnet rotates as a unit, and as a result, relative movement occurs between the plate-shaped conductor and the magnetic flux emitted from the surface of the permanent magnet. is cut perpendicularly by the plate-shaped conductor. Therefore, an eddy current is generated in the plate-shaped conductor due to electromagnetic induction, thereby generating a rotational force in the plate-shaped conductor. Since the plate-shaped conductor is integrally incorporated into the rotating body, the rotating body rotates within the stirring tank due to the rotational force, thereby stirring the substance within the tank.
（実施例） 次に、本考案の実施例を図面と共に説明する。(Example) Next, embodiments of the present invention will be described with reference to the drawings.
第１図は、本考案の一実施例を示す撹拌機の要
部の断面図であつて、ステンレスその他の非磁性
体からなる椀形の仕切りケーシング１１が撹拌槽
１２に溶接その他の方法で取付けられており、該
仕切りケーシング１１には、モータ１３がフラン
ジを介してボルト１４によつて取付けられてい
る。上記モータ１３の駆動軸１３ａには、軸筒部
１５ａとつば部１５ｂとからなる継手部材１５が
嵌合するようにして一体に取付けられており、該
つば部１５ｂには、第２図の正面図に示すよう
に、直方体の形をした偶数個の板状の永久磁石１
６ａ，１６ｂ……が、表面にＮ極とＳ極が交互に
現われるように放射状に配列して組み込まれてい
る。そしてこれらの各永久磁石の表面（図の上
面）と前記仕切りケーシング１１の上面部の裏側
との間には、間隙が設けられている。 FIG. 1 is a sectional view of the main parts of a stirrer showing an embodiment of the present invention, in which a bowl-shaped partition casing 11 made of stainless steel or other non-magnetic material is attached to a stirring tank 12 by welding or other methods. A motor 13 is attached to the partition casing 11 via a flange with bolts 14. A joint member 15 consisting of a shaft cylindrical portion 15a and a flange portion 15b is integrally attached to the drive shaft 13a of the motor 13, and the flange portion 15b is fitted with a joint member 15. As shown in the figure, an even number of rectangular parallelepiped plate-shaped permanent magnets 1
6a, 16b, . . . are installed in a radial arrangement so that north poles and south poles alternately appear on the surface. A gap is provided between the surface of each of these permanent magnets (the top surface in the figure) and the back side of the top surface of the partition casing 11.
一方、上記永久磁石１６と対向するようにして
撹拌槽１２の内側に回転羽根体１７が配設され、
該回転羽根体１７は、端部（図の上部）に回転羽
根１７ａを取付けた軸筒部１７ｂと、底部のつば
部１７ｃとからなり、軸筒部１７ｂは、軸受メタ
ル１８を介して、仕切りケーシング１１に取付け
られた軸１９に回転自在に支持されており、下部
のつば部１７ｃの下面に形成された凹部には、磁
路を形成し易くするために挿入された炭素鋼板２
０を介して、導電率の高い板状導電体をなす環状
の銅板２１が埋め込むようにして組み込まれてい
る。そして該銅板２１の下面と仕切りケーシング
１１の下面との間には、間隙が設けられている。 On the other hand, a rotary blade body 17 is disposed inside the stirring tank 12 so as to face the permanent magnet 16,
The rotary blade body 17 consists of a shaft cylindrical portion 17b with a rotary blade 17a attached to the end (upper part of the figure) and a collar portion 17c at the bottom. It is rotatably supported by a shaft 19 attached to the casing 11, and a carbon steel plate 2 is inserted into a recess formed on the lower surface of the lower flange 17c to facilitate forming a magnetic path.
An annular copper plate 21, which is a plate-shaped conductor with high electrical conductivity, is embedded in the conductive plate 21 through the conductor 0. A gap is provided between the lower surface of the copper plate 21 and the lower surface of the partition casing 11.
次に、作用について説明すると、モータ１３が
停止し回転羽根体１７が静止している状態におい
ては、永久磁石１６のＮ極から出た磁束が仕切り
ケーシング１１と銅板２１を貫通し、炭素鋼板２
０に至り、次いで隣接した部分の銅板２１と仕切
りケーシング１１を貫通して隣接したＳ極へ戻る
磁路が形成される。 Next, to explain the operation, when the motor 13 is stopped and the rotating blade body 17 is stationary, the magnetic flux emitted from the N pole of the permanent magnet 16 penetrates the partition casing 11 and the copper plate 21, and the carbon steel plate 2
0, and then a magnetic path is formed that passes through the adjacent copper plate 21 and the partition casing 11 and returns to the adjacent S pole.
次いで、モータ１３が回転すると、継手部材１
５と一体の永久磁石１６も共に回転するので、前
記した磁束も該永久磁石と共にモータの回転方向
に回転する。この時、未だ静止状態にある環状銅
板２１は、上記の磁束の回転方向の移動とは逆方
向に該磁束を切ることになり、その結果、電磁誘
導によつて半径方向に起きた起電力により環状銅
板の中に渦電流が生じる。そしてこの電流と上記
磁力線（磁束）との間の電磁力が、上記磁束を切
る方向と逆向きの力を出すことになり、継手１５
と同方向の回転力が生じるのである。 Next, when the motor 13 rotates, the joint member 1
Since the permanent magnet 16 integrated with the permanent magnet 5 also rotates, the magnetic flux described above also rotates in the rotation direction of the motor together with the permanent magnet. At this time, the annular copper plate 21, which is still in a stationary state, cuts the magnetic flux in the opposite direction to the rotational direction of the magnetic flux, and as a result, the electromotive force generated in the radial direction due to electromagnetic induction causes Eddy currents are generated in the annular copper plate. The electromagnetic force between this current and the lines of magnetic force (magnetic flux) generates a force in the opposite direction to the direction that cuts the magnetic flux, and the joint 15
A rotational force in the same direction is generated.
このようにして生じた回転力により、羽根回転
体１７は撹拌槽１２内の撹拌を行なう。 Due to the rotational force generated in this way, the rotor blade 17 stirs the inside of the stirring tank 12.
上記した本考案における継手機構は、駆動側に
永久磁石をまた従動側に板状導電体をそれぞれ使
用した渦電流型継手で構成されているため、駆動
側と従動側の回転数が相違し、この相対速度の差
により、トルクも違う。従つて、相対速度とトル
クとは直線型の比例関係にあり、相対速度が大き
くなるとトルクも大きくなり、相対速度が小さく
なるとトルクも小さくなる。 The above-mentioned joint mechanism according to the present invention is composed of an eddy current joint that uses a permanent magnet on the driving side and a plate-shaped conductor on the driven side, so the rotation speeds on the driving side and the driven side are different. This difference in relative speed causes a difference in torque. Therefore, the relative speed and torque have a linear proportional relationship; as the relative speed increases, the torque also increases, and as the relative speed decreases, the torque also decreases.
従つて、使用（運転）時、撹拌槽内の液の粘性
が温度によつて変化するなど、負荷の増大に対し
ては、相対速度が変化し、つまり従動側の回転数
は低下するが停止することがなく、負荷が減少す
れば、再び従動側の回転数が復帰して高くなる。
このことは、培養槽など、液の粘性が諸条件によ
り変化する場合などの撹拌に特に有効である。 Therefore, during use (operation), when the load increases, such as when the viscosity of the liquid in the stirring tank changes depending on the temperature, the relative speed will change, meaning the rotation speed on the driven side will decrease, but it will not stop. If the load decreases, the rotation speed on the driven side returns to a high level again.
This is particularly effective for stirring in cases where the viscosity of the liquid changes depending on various conditions, such as in a culture tank.
第３図は、撹拌槽に上記した本考案の回転駆動
装置を取付けた一実施例の作動状態を示す説明図
である。この実施例では、撹拌槽３２の底部の中
心より偏心した位置に回転体が取付けられている
ので、回転羽根による循環流れが撹拌槽内で非対
称形となるので、撹拌作用が有効に行なわれる。 FIG. 3 is an explanatory view showing the operating state of an embodiment in which the above-mentioned rotary drive device of the present invention is attached to a stirring tank. In this embodiment, since the rotating body is mounted eccentrically from the center of the bottom of the stirring tank 32, the circulating flow caused by the rotating blades becomes asymmetric within the stirring tank, so that the stirring action is effectively performed.
上記の実施例において、回転体に組み込まれる
板状導電体として銅板を使用した例について説明
したが、導電率の高い材料であればよく、アルミ
板でもよい。また、銅板の裏面に炭素鋼板が設け
られているので、磁束が外へ逃げるのを防ぎ、磁
路が形成され易い利点があるが、しかし、該炭素
鋼板は磁路が形成され易い材料であれば他の材料
でもよく、又なくてもよい。 In the above embodiment, an example was described in which a copper plate was used as the plate-shaped conductor incorporated into the rotating body, but any material with high conductivity may be used, and an aluminum plate may be used. In addition, since a carbon steel plate is provided on the back side of the copper plate, it has the advantage of preventing magnetic flux from escaping to the outside and easily forming a magnetic path. Alternatively, other materials may be used, or they may be omitted.
また、継手部材に組み込まれる永久磁石は、第
２図に示すような配列状態に限るものではなく、
渦電流による回転力の発生を有効に行わせるよう
に種々の設計変更が可能である。 Furthermore, the permanent magnets incorporated in the joint member are not limited to the arrangement shown in FIG.
Various design changes are possible to effectively generate rotational force by eddy currents.
一方、撹拌槽内に設けられる回転体は通常、回
転羽根であるが、該回転羽根は実施例におけるよ
うな単列でなく複数列にすることも可能であり、
また回転羽根以外にも例えばらせんねじ体等、
種々の変形が考えられる。また本考案の回転体
は、通常、槽の下方ないし側方に取付けられる
が、該回転体を槽内で支持するようにすれば、槽
の上方に設置された駆動機から吊下げるようにし
て設置することも可能である。 On the other hand, the rotating body provided in the stirring tank is usually a rotating blade, but the rotating blade can be arranged in multiple rows instead of a single row as in the embodiment,
In addition to rotating blades, for example, spiral screw bodies, etc.
Various modifications are possible. Furthermore, the rotating body of the present invention is normally installed below or on the side of the tank, but if the rotating body is supported within the tank, it can be suspended from a drive machine installed above the tank. It is also possible to install
なお本考案の駆動機はモータに限らないことは
勿論であり、変速、減速機構付モータ、エンジン
又は油圧、空気圧駆動機でもよい。 Note that the drive device of the present invention is of course not limited to a motor, and may be a motor with a variable speed or reduction mechanism, an engine, or a hydraulic or pneumatic drive device.
（考案の効果）
以上述べたように、本考案によれば、駆動機側
の回転力を、永久磁石より出る磁束の作用による
渦電流を利用して撹拌槽内の回転体に伝えるよう
に構成したので、機械的に回転力を伝達する軸が
撹拌槽を貫通する個所に設けられた従来の軸封機
構が不要となる。従つて完全無漏洩で、軸封部の
保守、管理が全く必要なく、注水も不要なので無
菌水及び注水配管系のいらない小型、軽量で省ス
ペースを可能にする。(Effects of the invention) As described above, according to the invention, the rotational force on the drive side is transmitted to the rotating body in the stirring tank by using eddy current caused by the action of magnetic flux emitted from the permanent magnet. Therefore, the conventional shaft sealing mechanism provided at the location where the shaft for mechanically transmitting rotational force passes through the stirring tank becomes unnecessary. Therefore, there is no leakage, and there is no need for maintenance or management of the shaft seal, and there is no need for water injection, making it possible to save space by being small and lightweight without the need for sterile water or water injection piping system.
また、槽の殺菌、洗浄についても、複雑に構成
された部分が全くないので、完全確実、迅速容易
に殺菌、洗浄を行なうことが可能である。 Further, regarding sterilization and cleaning of the tank, since there are no complicated parts, it is possible to sterilize and clean the tank completely reliably, quickly and easily.
また、本考案の撹拌機に特に渦電流型継手を使
用したことにより、駆動側と従動側に共に永久磁
石を使用した同期型継手を用いた従来のものと相
違して、駆動側と従動側の回転数が異なり、この
相対速度の差によつてトルクも違うので、温度に
よつて変化する液の粘性等による負荷の増大に対
しては、従動側の回転数は低下するが停止するこ
とはなく、また長時間運転しても機械的支障は起
きない。そして負荷が減少すれば再び従動側の回
転数が復帰して高くなる。従つて、培養槽など、
液の粘性で諸条件により変化する場合などの撹拌
に特に有効である。 In addition, by using an eddy current type joint in the stirrer of the present invention, unlike the conventional type using a synchronous type joint that uses permanent magnets on both the drive side and the driven side, The rotational speed of the driven side will be different, and the torque will also be different depending on this difference in relative speed, so when the load increases due to the viscosity of the liquid that changes depending on the temperature, the rotational speed of the driven side will decrease but it will stop. There are no mechanical problems even after long-term operation. Then, when the load decreases, the rotation speed on the driven side returns to a high level again. Therefore, culture tanks, etc.
It is particularly effective for stirring when the viscosity of the liquid changes depending on various conditions.
第１図は、本考案の一実施例を示す撹拌機の要
部の断面図、第２図は第１図の−線平面図、
第３図は使用状態を示す本考案の撹拌機の一実施
例の説明図、第４図ないし第６図は従来の撹拌機
の側断面図と要部断面図である。
１１……仕切りケーシング、１２，３２……撹
拌槽、１５……継手、１６……永久磁石、１７…
…回転羽根体（回転体）、２１……銅板（板状導
電体）。
FIG. 1 is a cross-sectional view of the main parts of a stirrer showing an embodiment of the present invention, FIG. 2 is a plan view taken along the line -- in FIG.
FIG. 3 is an explanatory diagram of an embodiment of the stirrer of the present invention showing the state of use, and FIGS. 4 to 6 are side sectional views and principal part sectional views of conventional stirrers. 11... Partition casing, 12, 32... Stirring tank, 15... Joint, 16... Permanent magnet, 17...
...Rotating blade body (rotating body), 21... Copper plate (plate-shaped conductor).
Claims (1)
よつて撹拌を行なう撹拌機において、永久磁石
を組み込んだ継手を駆動機に接続して設け、該
継手に組み込まれた永久磁石に対向して、撹拌
槽内の回転体に組み込まれた板状導電体を回転
自在に支持して設け、それらの中間位置に、撹
拌槽に取り付けられ駆動機側と回転体側とを仕
切る非磁性体からなる仕切りケーシングを設
け、前記駆動機側の継手に組み込まれた永久磁
石の回転により、上記板状導電体に渦電流を発
生させ、それによつて回転体を駆動させるよう
にし、駆動機側の回転力を回転体に機械的に伝
達する軸及び軸継手を持たない、ことを特徴と
する撹拌機。 ２ 前記板状導電体は、仕切りケーシングに軸を
介して回転自在に支持されている実用新案登録
請求の範囲第１項記載の撹拌機。 ３ 前記板状導電体は、銅板によつて構成され、
炭素鋼を介して回転体に取付けられている実用
新案登録請求の範囲第１項又は第２項記載の撹
拌機。 ４ 前記継手に組み込まれた永久磁石は、直方体
の形をした板状の永久磁石を偶数個、表面にＮ
極とＳ極が交互に現われるように放射状に配列
されている実用新案登録請求の範囲第１項記載
の撹拌機。[Scope of Claim for Utility Model Registration] 1. In a stirrer that performs stirring by a rotating body such as a rotary blade installed in a stirring tank, a joint incorporating a permanent magnet is connected to a drive machine, and the joint is connected to the drive machine. Opposing the built-in permanent magnet, a plate-shaped conductor built into the rotating body in the stirring tank is rotatably supported, and a conductive plate attached to the stirring tank is attached to the drive machine side and the rotating body side at an intermediate position between them. A partition casing made of a non-magnetic material is provided to separate the parts from each other, and rotation of a permanent magnet incorporated in the joint on the driving machine side generates an eddy current in the plate-shaped conductor, thereby driving the rotating body. A stirrer characterized in that it does not have a shaft or a shaft coupling for mechanically transmitting the rotational force of the drive unit to the rotating body. 2. The stirrer according to claim 1, wherein the plate-shaped conductor is rotatably supported by a partition casing via a shaft. 3. The plate-shaped conductor is composed of a copper plate,
The stirrer according to claim 1 or 2, which is attached to a rotating body through carbon steel. 4 The permanent magnets incorporated in the joint include an even number of plate-shaped permanent magnets in the shape of a rectangular parallelepiped, and N on the surface.
The stirrer according to claim 1, wherein the stirrer is arranged radially so that poles and south poles appear alternately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985131697U JPH0227881Y2 (en) | 1985-08-30 | 1985-08-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985131697U JPH0227881Y2 (en) | 1985-08-30 | 1985-08-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6243631U JPS6243631U (en) | 1987-03-16 |
| JPH0227881Y2 true JPH0227881Y2 (en) | 1990-07-26 |
Family
ID=31030394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985131697U Expired JPH0227881Y2 (en) | 1985-08-30 | 1985-08-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0227881Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002058979A (en) * | 2000-08-23 | 2002-02-26 | Nippon Soda Co Ltd | Method of preserving and transporting alkaline metal dispersion |
| SE525264C2 (en) * | 2004-03-01 | 2005-01-18 | Novaseptic Ab | Processing apparatus for emulsifying, homogenizing or mixing, contains direct drive processing unit with fixed inner ring of teeth and rotary outer ring of teeth |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5345344B2 (en) * | 1977-04-02 | 1978-12-06 | ||
| JPS5645752A (en) * | 1979-09-20 | 1981-04-25 | Kyowa Hakko Kogyo Co Ltd | Stirrer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5345344U (en) * | 1976-09-22 | 1978-04-18 |
-
1985
- 1985-08-30 JP JP1985131697U patent/JPH0227881Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5345344B2 (en) * | 1977-04-02 | 1978-12-06 | ||
| JPS5645752A (en) * | 1979-09-20 | 1981-04-25 | Kyowa Hakko Kogyo Co Ltd | Stirrer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6243631U (en) | 1987-03-16 |
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