JPH0417040B2 - - Google Patents
Info
- Publication number
- JPH0417040B2 JPH0417040B2 JP57209703A JP20970382A JPH0417040B2 JP H0417040 B2 JPH0417040 B2 JP H0417040B2 JP 57209703 A JP57209703 A JP 57209703A JP 20970382 A JP20970382 A JP 20970382A JP H0417040 B2 JPH0417040 B2 JP H0417040B2
- Authority
- JP
- Japan
- Prior art keywords
- load
- rotational speed
- speed
- motor
- clutch
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/0016—Control of angular speed of one shaft without controlling the prime mover
- H02P29/0027—Controlling a clutch between the prime mover and the load
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Description
【発明の詳細な説明】
この発明は負荷の起動装置、特に出力の変動す
る電源に適した負荷の起動装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a load starting device, and particularly to a load starting device suitable for a power source whose output fluctuates.
太陽電池や風力発電設備の様に出力が大きく変
動する電源を用いて例えば潅漑用揚水装置を駆動
する場合、従来は蓄電池等の起動用補助電源およ
び起動制御機構を必要としていた。この事はコス
トおよび保守の両面で大きな負担となつていた。 When driving, for example, a water pumping system for irrigation using a power source whose output fluctuates greatly, such as a solar cell or wind power generation facility, conventionally, an auxiliary power source for starting, such as a storage battery, and a starting control mechanism have been required. This was a huge burden in terms of both cost and maintenance.
この発明はモータ、このモータに結合されて駆
動されるフライホイール、上記モータ及びフライ
ホイールの結合体によつて駆動される負荷、及び
上記結合体の回転速度が上昇して第一速度値より
高くなつた時に上記負荷と上記結合体を接続し駆
動力を伝達し、上記結合体の回転速度が下降して
第一速度値より低い第二速度値より低くなつた時
に上記負荷と上記結合体とを切り離し駆動力を遮
断するようなヒステリシスを有するクラツチを備
えることにより、出力変動が大きい電源やわずか
な出力の電源からでも簡単な機構で負荷の起動と
エネルギーの有効利用を計ろうとするものであ
る。 The present invention includes a motor, a flywheel coupled to and driven by the motor, a load driven by a combination of the motor and the flywheel, and a rotational speed of the combination increased to a value higher than a first speed value. When the rotational speed of the coupled body decreases and becomes lower than a second speed value that is lower than the first speed value, the load and the coupled body are connected and the driving force is transmitted. By equipping a clutch with hysteresis that disconnects the power and cuts off the driving force, it is possible to start the load and use energy effectively with a simple mechanism even from a power source with large output fluctuations or a power source with a small output. .
以下に図に基いてこの発明の内容を詳細に説明
する。 The contents of the present invention will be explained in detail below based on the drawings.
第１図はこの発明を適用した揚水装置の一実施
例を示す構成図であり、１はモータ、２はフライ
ホイール、３はクラツチ、４は負荷、この場合は
ポンプ、５は送水管である。モータとフライホイ
ールの軸は常に結合されているが、回転負荷であ
るポンプの軸とはクラツチを介して連結されてお
り、特定の条件のもとに結合または開放される。
クラツチ３は遠心力等を利用して、モータ及びフ
ライホイールの結合体の回転速度が高い時に駆動
力伝達状態となり、回転速度が低い時に駆動力遮
断状態となるものである。更にこのクラツチは動
作にヒステリシスを有し、回転速度があらかじめ
定められた第１速度値より高くなると遮断状態か
ら伝達状態となり、回転速度が低くなる時は第１
速度値よりさらに低い第２速度値まで下降した時
に伝達状態から遮断状態となる。このヒステリシ
スが無い場合は、電源の出力が上昇し、モータお
よびフライホイールの回転速度が上昇し、クラツ
チが伝達状態になつても、負荷の接続によつて回
転速度が直ちに下降し、クラツチは再び遮断状態
となつて起動の失敗を繰返すことになる。これに
反して、ヒステリシスを有する場合は、負荷の接
続によつて回転速度が下降しても、第２速度値以
下にならない限りクラツチは開放されないので、
起動が可能になる。第１、第２速度値を夫々ω1、
ω2、フライホイールおよびモータの結合体の慣
性モーメントをＩとすると、ヒステリシスの作用
は、次式で示す量のエネルギーの貯蔵に相当す
る。 FIG. 1 is a configuration diagram showing an embodiment of a water pumping device to which the present invention is applied, in which 1 is a motor, 2 is a flywheel, 3 is a clutch, 4 is a load, in this case a pump, and 5 is a water pipe. . The shafts of the motor and flywheel are always connected, but they are connected to the shaft of the pump, which is a rotating load, via a clutch, which can be connected or released under certain conditions.
The clutch 3 uses centrifugal force or the like to enter a driving force transmitting state when the rotational speed of the combined motor and flywheel is high, and enters a driving force cutting state when the rotational speed is low. Furthermore, this clutch has hysteresis in its operation; when the rotational speed is higher than a predetermined first speed value, the clutch changes from the disconnected state to the transmitting state, and when the rotational speed decreases, it changes to the first speed value.
When the speed drops to a second speed value that is lower than the speed value, the transmission state changes to the cutoff state. Without this hysteresis, even if the power supply output increases, the motor and flywheel rotational speed increases, and the clutch goes into transmission, the rotational speed will immediately decrease as the load is connected, and the clutch will re-engage. This results in a shutdown state and repeated startup failures. On the other hand, if the clutch has hysteresis, even if the rotational speed decreases due to connection of a load, the clutch will not be released unless the speed drops below the second speed value.
It becomes possible to start. The first and second velocity values are respectively ω 1 ,
If ω 2 and the moment of inertia of the flywheel and motor combination are I, the effect of hysteresis corresponds to the storage of energy in the amount:
Ｑ＝１／２Ｉ（ω1 2−ω2 2） ……(1)
この貯蔵エネルギーＱが負荷の起動に必要なエ
ネルギーより大きくなる様に設計を行えば、起動
は一回で確実に成功する。 Q = 1/2I (ω 1 2 − ω 2 2 ) ...(1) If the design is made so that this stored energy Q is greater than the energy required to start the load, startup will definitely be successful in one attempt. .
第２図は、この発明を適用した揚水装置の動作
特性を説明する図である。第２図ａは電源の出力
Ｐの時間ｔに対する変動を例示した波形図であ
り、第２図ｂは回転速度ωと時間ｔの関係を表わ
し、結合体の回転速度ωFと負荷であるポンプの
回転速度ωPの時間変化を示した波形図で、破線
で結合体の、実線でポンプの回転速度を表わす。
第２図ａに示す様に電源の出力が上昇しはじめる
とモータおよびフライホイールが回転しはじめ、
回転速度が第１速度値ω1に達するとクラツチが
結合し、ポンプの回転負荷に接続される。モータ
およびフライホイールの回転速度は第２図ｂの破
線で表わされているように負荷接続後は下降し、
ポンプの回転速度は実線で表わされている様に上
昇する。両者の回転速度は接近して一致し、完全
な結合状態に入る。その期間中、フライホイール
の放出したエネルギーは、ポンプの加速、回転負
荷およびクラツチの摩擦に消費される。従つて蓄
積エネルギーの利用率を高め、起動を容易にする
ためには、フライホイールの慣性モーメントを大
きく、クラツチの結合摩擦力を大きく設計する事
がのぞましい。第２速度値ω2は、上記結合体の
回転速度の最小値（第２図ｂのω3）に比べて小
さく設定しておく。一方、電源の出力が低下する
場合は、回転速度が低下して第２速度値ω2まで
低下するとクラツチが開き、モータおよびフライ
ホイールがポンプから開放される。その後負荷の
減少によつてモータの回転速度は一時上昇する。
この場合、モータの回転速度が第１速度値ω1ま
で上昇する事もあり得るが、その場合は、再びク
ラツチの結合が起つて、起動態勢に入る。しかし
第２図ａに示した様なパターンで電源の出力が変
動する場合は、この様な再起動は起つたとしても
短時間に終了し装置は停止する。特殊な状態とし
て、電源の出力が弱く、第２速度値ω2を維持し
得ない状態が長時間続く場合は、この装置は電源
出力の不足に対応した休止率をもつて間歇的に動
作する。即ちこの装置は、電源の出力が極端に小
さい場合でも電源のエネルギーをフライホイール
に蓄積し、短期間ではあるがそのエネルギーを駆
動負荷に利用できるので、有効に使うことができ
る。 FIG. 2 is a diagram illustrating the operating characteristics of a water pumping device to which the present invention is applied. Fig. 2a is a waveform diagram illustrating the fluctuation of the output P of the power supply over time t, and Fig. 2b shows the relationship between the rotational speed ω and time t, and shows the rotational speed ωF of the coupled body and the pump that is the load. This is a waveform diagram showing changes over time in the rotational speed ω P of , where the broken line represents the rotational speed of the combined body and the solid line represents the rotational speed of the pump.
As shown in Figure 2a, when the output of the power source begins to rise, the motor and flywheel begin to rotate.
When the rotational speed reaches a first speed value ω 1 , the clutch is engaged and connected to the rotating load of the pump. The rotational speed of the motor and flywheel decreases after the load is connected, as shown by the broken line in Figure 2b.
The rotational speed of the pump increases as shown by the solid line. Their rotational speeds closely match and enter a state of complete coupling. During that period, the energy released by the flywheel is consumed in pump acceleration, rotational loads and clutch friction. Therefore, in order to increase the utilization rate of stored energy and facilitate starting, it is desirable to design the flywheel to have a large moment of inertia and the clutch to have a large coupling friction force. The second speed value ω 2 is set smaller than the minimum value of the rotational speed of the above-mentioned combined body (ω 3 in FIG. 2b). On the other hand, if the output of the power supply decreases, the clutch opens and the motor and flywheel are released from the pump when the rotational speed decreases to a second speed value ω 2 . Thereafter, the rotational speed of the motor temporarily increases due to the decrease in load.
In this case, it is possible that the rotational speed of the motor increases to the first speed value ω 1 , in which case the clutch is engaged again and the motor is ready to start. However, if the output of the power supply fluctuates in the pattern shown in FIG. 2a, even if such restart occurs, it will be completed in a short time and the device will stop. As a special condition, if the output of the power supply is weak and the state in which the second speed value ω 2 cannot be maintained continues for a long time, this device will operate intermittently with a pause rate corresponding to the lack of power supply output. . That is, even when the output of the power source is extremely small, this device stores the energy of the power source in the flywheel and can use that energy for the driving load, albeit for a short period of time, so it can be used effectively.
第３図はこの発明に係わるクラツチ３の実施例
を示す断面図で、３１は負荷側部材、即ちポンプ
側部材、３２は駆動側部材、即ちフライホイー
ル、３３は駆動力伝達用のシユー、３４はスプリ
ング、３５はマグネツトである。シユー３３に働
く遠心力がスプリング３４およびマグネツト３５
の拘束力にうち勝つとシユーが負荷側部材３２に
圧着され、摩擦力で回転力を伝達する。シユー３
３が一旦、外周方向に開くとマグネツト３５との
距離が遠くなるので、内周方向への復元力が弱く
なり、回転速度が最初にシユー３３を外周方向に
開いた時の値より小さくならないと復元しない。
これによつて、前述のヒステリシスを発生させる
事ができる。 FIG. 3 is a sectional view showing an embodiment of the clutch 3 according to the present invention, where 31 is a load side member, that is, a pump side member, 32 is a drive side member, that is, a flywheel, 33 is a shoe for transmitting driving force, and 34 is a spring, and 35 is a magnet. The centrifugal force acting on the shoe 33 causes the spring 34 and the magnet 35 to
When the shoe overcomes the restraining force, the shoe is pressed against the load-side member 32 and transmits rotational force by frictional force. Show 3
Once the shoe 3 is opened in the outer circumferential direction, the distance from the magnet 35 becomes longer, so the restoring force in the inner circumferential direction becomes weaker, and the rotational speed must become smaller than the value when the shoe 33 is first opened in the outer circumferential direction. Not restored.
This allows the aforementioned hysteresis to occur.
第４図はこの発明に係わるクラツチ３の他の実
施例を示す断面図で、３１，３２，３３，３４は
第３図と同じものである。図に示されるようにス
プリング３４を配置すれば、図中破線で表わされ
る駆動力遮断状態の方が実線で示される駆動力伝
達状態よりもスプリングの引つ張り力によるシユ
ー３３に働く内周方向への復元力が強いため、前
述のヒステリシスを発生させる事ができる。 FIG. 4 is a sectional view showing another embodiment of the clutch 3 according to the present invention, in which 31, 32, 33, and 34 are the same as those in FIG. 3. If the spring 34 is arranged as shown in the figure, the driving force cutoff state shown by the broken line in the figure is better than the driving force transmission state shown by the solid line in the inner circumferential direction due to the tension force of the spring acting on the shoe 33. Since the restoring force is strong, the above-mentioned hysteresis can be generated.
以上説明したようにこの発明によれば、モー
タ、このモータに結合されて駆動されるフライホ
イール、上記モータ及びフライホイールの結合体
によつて駆動される負荷、及び上記結合体の回転
速度が上昇して第一速度値より高くなつた時に上
記負荷と上記結合体を接続し駆動力を伝達し、上
記結合体の回転速度が下降して第一速度値より低
い第二速度値より低くなつた時に上記負荷と上記
結合体とを切り離し駆動力を遮断するようなヒス
テリシスを有するクラツチを備えることにより、
出力変動が大きい電源やわずかな出力の電源から
でも簡単な機構で負荷の起動とエネルギーの有効
利用が計れる。 As explained above, according to the present invention, the motor, the flywheel coupled to and driven by the motor, the load driven by the combination of the motor and flywheel, and the rotational speed of the combination are increased. When the speed becomes higher than the first speed value, the load and the coupled body are connected to transmit driving force, and the rotational speed of the coupled body decreases and becomes lower than a second speed value which is lower than the first speed value. By providing a clutch having hysteresis that sometimes separates the load from the coupled body and cuts off the driving force,
Even from a power supply with large output fluctuations or a power supply with a small output, it is possible to start the load and use energy effectively with a simple mechanism.
第１図はこの発明を適用した揚水装置の一実施
例を示す構成図で、第２図はこの発明を適用した
揚水装置の動作特性を説明する波形図で、そのａ
は電源の出力Ｐの時間ｔに対する変動を示す波形
図で、そのｂは結合体の回転速度ωFとポンプの
回転速度ωPの時間変化を示した波形図で、第３
図はこの発明に係わるクラツチの実施例を示す断
面図で、第４図はこの発明に係わるクラツチの他
の実施例を示す断面図である。
図において１はモータ、２はフライホイール、
３はクラツチ、４は負荷、３１は負荷側部材、３
２は駆動側部材、３３は駆動力伝達用のシユー、
３４はスプリング、３５はマグネツトである。な
お各図中同一符号は同一又は相当部分を示す。
Fig. 1 is a configuration diagram showing an embodiment of a water pumping device to which the present invention is applied, and Fig. 2 is a waveform diagram explaining the operating characteristics of the water pumping device to which the present invention is applied.
is a waveform diagram showing the fluctuation of the output P of the power supply with respect to time t, and b is a waveform diagram showing the time change of the rotational speed ω F of the combination body and the rotational speed ω P of the pump.
The figure is a sectional view showing an embodiment of the clutch according to the invention, and FIG. 4 is a sectional view showing another embodiment of the clutch according to the invention. In the figure, 1 is the motor, 2 is the flywheel,
3 is a clutch, 4 is a load, 31 is a load side member, 3
2 is a driving side member, 33 is a shoe for transmitting driving force,
34 is a spring, and 35 is a magnet. Note that the same reference numerals in each figure indicate the same or equivalent parts.
Claims (1)
フライホイール、上記モータ及びフライホイール
の結合体によつて駆動される負荷、及び上記結合
体の回転速度が上昇して第一速度値より高くなつ
た時に上記負荷と上記結合体を接続し駆動力を伝
達し、上記結合体の回転速度が下降して第一速度
値より低い第二速度値より低くなつた時に上記負
荷と上記結合体とを切り離し駆動力を遮断するよ
うなヒステリシスを有するクラツチを備えた負荷
の起動装置。 ２ 結合体における第一速度値と第二速度値の差
の貯蔵エネルギーが負荷の起動エネルギー以上で
ある特許請求の範囲第１項記載の負荷の起動装
置。 ３ 負荷がポンプである特許請求の範囲第１項又
は第２項記載の負荷の起動装置。[Scope of Claims] 1. A motor, a flywheel coupled to the motor and driven, a load driven by the combination of the motor and the flywheel, and a rotational speed of the combination increased to a first speed. When the speed becomes higher than the first speed value, the load and the coupled body are connected to transmit driving force, and when the rotational speed of the coupled body decreases and becomes lower than the second speed value, which is lower than the first speed value, the load and the coupled body are connected. A load starting device comprising a clutch having hysteresis to disconnect the coupling body and cut off the driving force. 2. The load starting device according to claim 1, wherein the stored energy of the difference between the first speed value and the second speed value in the combined body is greater than or equal to the load starting energy. 3. The load starting device according to claim 1 or 2, wherein the load is a pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57209703A JPS59100000A (en) | 1982-11-30 | 1982-11-30 | Starter for load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57209703A JPS59100000A (en) | 1982-11-30 | 1982-11-30 | Starter for load |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59100000A JPS59100000A (en) | 1984-06-08 |
| JPH0417040B2 true JPH0417040B2 (en) | 1992-03-25 |
Family
ID=16577232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57209703A Granted JPS59100000A (en) | 1982-11-30 | 1982-11-30 | Starter for load |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59100000A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE58903262D1 (en) * | 1988-07-06 | 1993-02-25 | Rieter Ag Maschf | SYNCHRONIZABLE DRIVE SYSTEMS. |
| JP3674796B2 (en) * | 1995-04-24 | 2005-07-20 | 株式会社リコー | Thermal recording material |
| JP2018505634A (en) * | 2014-12-04 | 2018-02-22 | エディ・カーレント・リミテッド・パートナーシップ | Latch activation between elements |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5361558U (en) * | 1977-06-08 | 1978-05-25 |
-
1982
- 1982-11-30 JP JP57209703A patent/JPS59100000A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59100000A (en) | 1984-06-08 |
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