JPS6014889B2 - Turbine rotor turning device - Google Patents
Turbine rotor turning deviceInfo
- Publication number
- JPS6014889B2 JPS6014889B2 JP11539577A JP11539577A JPS6014889B2 JP S6014889 B2 JPS6014889 B2 JP S6014889B2 JP 11539577 A JP11539577 A JP 11539577A JP 11539577 A JP11539577 A JP 11539577A JP S6014889 B2 JPS6014889 B2 JP S6014889B2
- Authority
- JP
- Japan
- Prior art keywords
- turbine rotor
- electric motor
- contact
- gear
- state
- 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
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
【発明の詳細な説明】
本発明はタービンロータの夕−ニング装置(以下単にタ
ーニング装置という)に関し、特にタービンロー外こ取
付けた歯車にターニング装置の減速機最終歯車を連結す
るときに、歯車を傷めることなく歯車同志を噛み合わす
ための起動回路および空気または油圧調整装置を有する
ターニング装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a turning device for a turbine rotor (hereinafter simply referred to as a turning device), and in particular, when connecting a final gear of a reduction gear of a turning device to a gear mounted on the outer surface of a turbine rotor, the present invention relates to a turning device for a turbine rotor. This invention relates to a turning device having a starting circuit and a pneumatic or hydraulic adjustment device for meshing gears without damaging them.
一般に、夕−ビンが停止した後完全に冷却するまでは、
タービン内部の自然対流により下部より上部の方が温度
が若干高くなる。In general, until the bin has completely cooled down after it has stopped,
Due to natural convection inside the turbine, the temperature at the top is slightly higher than at the bottom.
このため、タービンロータの曲り変形が生じ、完全冷却
以前にタービンを起動させようとすると、振動が発生し
て回転上昇ができなかったり、その他種々の不都合を生
ずる。ターニング装置は、タービン冷却時にタービンロ
ータの変形を防止するため、先ずタービンロータを低い
回転数で回転させるもので、またタービン始動時の軸受
を良好な潤滑状態にして回転上昇を容易にするためにも
用いられるものである。As a result, the turbine rotor is bent and deformed, and if an attempt is made to start the turbine before it has been completely cooled, vibrations occur and the rotation cannot be increased, resulting in various other problems. The turning device first rotates the turbine rotor at a low rotational speed in order to prevent the turbine rotor from deforming when the turbine is cooled, and also to keep the bearing in a good lubricated state at the time of starting the turbine to make it easier to increase the rotation speed. is also used.
ターニング装置は、停止状態にあるタービンロータに取
付けられた歯車(以下単に大歯車という)に減速機最終
歯車を連結させるため駆動電動機を回転状態にしてから
連結用の空気または油圧シリンダ(以下単にシリンダ)
を働かせていた。しかし、近年の大形タービンでは、タ
ーニング時の軸受保護のためターニング回転数を従来の
公p.m.に比べ約3倍も高い&.p.m.附近の値に
することが多くなってきた。このため減速機の最終歯車
の回転数もほぼこれに比例して高まり、大歯車を回転し
たまま連結する従来の方法では、最初の接触の時の衝撃
によって歯車が損傷することがあり、またタービンロー
タは静止状態から急に8p.mに加速されるため両歯車
の同期が得られず筋脱を繰返すことがある。本発明の目
的は、このような不都合を除去することにあり、先ず電
動機を静止状態においたままシリンダに圧力を加えるこ
とにより静止状態の大歯車と、減速機最終歯車とを不完
全噛み合い状態となしこれ以上の噛み合いは行われない
ようにする。The turning device rotates the drive motor in order to connect the final gear of the reducer to the gear (hereinafter simply referred to as the large gear) attached to the turbine rotor that is in the stopped state, and then connects the connecting air or hydraulic cylinder (hereinafter simply referred to as the cylinder). )
was working. However, in recent large-scale turbines, the turning speed has been lowered to the conventional standard in order to protect the bearings during turning. m. About 3 times higher than &. p. m. Increasingly, values are set in the vicinity. For this reason, the rotational speed of the final gear of the reducer increases almost proportionally, and with the conventional method of connecting large gears while rotating, the gears may be damaged by the impact at the time of initial contact, and the turbine The rotor suddenly moves from rest to 8p. Since the gears are accelerated at speeds of m, synchronization between the two gears may not be achieved and muscle withdrawal may occur repeatedly. The purpose of the present invention is to eliminate such inconveniences, and first, by applying pressure to the cylinder while the electric motor is in a stationary state, the large gear in the stationary state and the final gear of the reduction gear are brought into an incompletely meshed state. None: Prevent further engagement.
ここで、電動機にパルス状の通電を行うと、シリンダに
よる強制的な噛み合わせ力がすでに働いているので、両
歯車は完全に噛み合うことになる。この状態を、ターニ
ング装置に設けたりミットスイッチLSにより検出して
から電動機に連結通電すれば歯車を損傷することなくタ
ーニング装置の連結を行いうる。夕−ニング装置が大形
化してくると、静止状態においた両歯車をシリンダによ
って強制的に接触させたとき、これだけで歯車が傷つく
ことがある。このため、本発明では不完全噛み合い状態
を得るときは、シリンダに供給する圧力源の圧力を低く
し比較的緩やかに歯車を接触させ、電動機に通電を行う
ときは圧力源の圧力をそのままシリンダにかけ、強い強
制噛み合わせ力を減速機の最終歯車に与えることにより
安全かつ確実にターニング装置の連結を行うものである
。Here, when the electric motor is energized in a pulsed manner, the forced meshing force by the cylinder is already working, so both gears will mesh completely. If this state is detected by the turning device or by a mitt switch LS and then the electric motor is connected and energized, the turning device can be connected without damaging the gears. As the evening device becomes larger, when both gears in a stationary state are forcibly brought into contact with each other by a cylinder, the gears may be damaged by this alone. Therefore, in the present invention, when obtaining an incompletely meshed state, the pressure of the pressure source supplied to the cylinder is lowered and the gears are brought into relatively gentle contact, and when the electric motor is energized, the pressure of the pressure source is directly applied to the cylinder. The turning device is connected safely and reliably by applying a strong forced meshing force to the final gear of the reducer.
以下、本発明の実施例を従来技術と比較しながら図面を
参照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings while comparing them with the prior art.
第1図および第2図において、主駆動用電動機10の軸
端には小歯車17が取付けられ、この電動機10の回転
力は大笠歯車16、第1減速歯車14および13を経て
減速歯車11,6,3を介してタービンロー夕1に取付
けられた大歯車2に伝えられる。ここで減速歯車3は減
速機の最終歯車となる。電動機1川こよってタービンロ
ー夕1が回転されているとき、矢印(回転方向を示す)
とは反対の駆動反力が生じる。In FIGS. 1 and 2, a small gear 17 is attached to the shaft end of the main drive electric motor 10, and the rotational force of this electric motor 10 is transmitted to the reduction gear 11 through the Okasa gear 16, first reduction gears 14 and 13. , 6, 3 to the large gear 2 attached to the turbine rotor 1. Here, the reduction gear 3 becomes the final gear of the reduction gear. When the turbine rotor 1 is being rotated by the electric motor 1, an arrow (indicating the direction of rotation)
A driving reaction force opposite to that occurs.
減速歯車3は揺動レバー5の先端に軸4、軸受8を介し
て取付けられており、揺動レバー5は減速歯車6の軸7
を介して減速機本体9に支えられており、この軸を中心
に回転しうるようになっている。第1図の矢印と反対方
向に駆動反力が生じているとき大歯車2と最終歯車3の
噛み合いが保たれるように角度8がさめられている。第
3図はターニング装置の援断機能(一般には俵脱機構と
いわれる)を説明するための図で、1はタービンロータ
、2は大歯車、3は減速機の最終歯車、2川ま軸7を中
心に回転する揺動レバーである。The reduction gear 3 is attached to the tip of the swing lever 5 via a shaft 4 and a bearing 8, and the swing lever 5 is attached to the shaft 7 of the reduction gear 6.
It is supported by the reducer main body 9 via a shaft, and can rotate around this shaft. The angle 8 is narrowed so that the engagement between the large gear 2 and the final gear 3 is maintained when a driving reaction force is generated in the direction opposite to the arrow in FIG. Figure 3 is a diagram for explaining the breaking function of the turning device (generally called the bale ejection mechanism), in which 1 is the turbine rotor, 2 is the large gear, 3 is the final gear of the reducer, and 2 is the shaft 7. It is a swinging lever that rotates around the .
このような装置において、シリンダ27を矢印の方向に
働かせると、レバー25は中心軸24の周りに回動し最
終歯車3の中心を矢印方向に移動し、両歯車3と2とを
噛み合わせる。長溝板22は揺動レバー20‘こ設けた
ピン21と共に、揺動レバーの位置を図示の点に保ち、
かつ両歯車2と3とが噛み合ったとき過度の噛み合いに
ならないよう規制するものである。シリンダ27に圧力
源が通じてない状態で夕−ビンロータが回転し始めると
、タービンによって電動機が回転されるようになり、第
1図の大歯車 −2に示した矢印の方向に駆動反力が生
じ、揺動レバー20は第3図の位置へと回動し、大歯車
2と最終歯車3との噛み合いが外れる。In such a device, when the cylinder 27 is operated in the direction of the arrow, the lever 25 rotates around the central axis 24, moves the center of the final gear 3 in the direction of the arrow, and meshes both gears 3 and 2. The long groove plate 22, together with the pin 21 provided on the swing lever 20', maintains the position of the swing lever at the point shown in the figure.
Moreover, when both gears 2 and 3 mesh, it is regulated to prevent excessive meshing. When the spindle rotor starts rotating with no pressure source connected to the cylinder 27, the electric motor is rotated by the turbine, and a driving reaction force is generated in the direction of the arrow shown in the large gear 2 in Fig. 1. As a result, the swing lever 20 rotates to the position shown in FIG. 3, and the large gear 2 and the final gear 3 are disengaged from each other.
第4図は従来から使用されてきたターニング装置の始動
回路図の一例を示す。FIG. 4 shows an example of a starting circuit diagram of a conventional turning device.
第4図において、38は制御用電源を示す。ここで手動
スイッチにより接点31を閉じると、リレー類41が働
き、先ず電動機10が回転し、次に電磁弁36が励磁さ
れ、シリンダ27に油圧または空気圧を送ってターニン
グ装置の揺動レバーを動かして前述の噛み合い状態を得
ている。尚第4図において、31は手動にて閉じる俵点
、32はターニング装置が連結された状態になると閉じ
るリミットスイッチはの接点、33はターニング装置が
完全に脱れた状態で閉じるリミットスイッチLSの接点
、34は電動機10の電源、35は伝磁弁36用の電源
、39は電磁弁36用の接点、4川ま電動機10を駆動
するための接点、42はリレーが働くと直ちに閉じ、リ
レーが切れると開く接点、43はリレーが働くと時間遅
れをもって閉じ、リレーが切れると直ちに開く接点、4
4はリレーが働くと時間遅れをもって開き、リレーが切
れると直ちに閉じる接点、45はリレーが働くと直ちに
開き、リレーが切れると直ちに閉じる接点、46はリレ
ーが働くと直ちに閉じ、リレーが切れると時間遅れをも
って開く接点をそれぞれ示している。また破線はリレー
と接点のつながりの関係を示している。第4図に示す回
路の動作そのものは、当業者に充分理解できる単純なも
のであるからここでは説明を省略する。第7図は上述の
回路でターニング装置を連結した時の実例を示し、Aは
電動機が回転し始めた時の起動電流、Bは静止状態にあ
る大歯車に、回転している減速機の最終歯車が接触した
ときの電動機電流をそれぞれ示している。In FIG. 4, 38 indicates a control power source. When the contact 31 is closed using the manual switch, the relays 41 are activated, first the electric motor 10 is rotated, and then the solenoid valve 36 is energized, and hydraulic or air pressure is sent to the cylinder 27 to move the swing lever of the turning device. The above-mentioned meshing condition is obtained. In Fig. 4, 31 is the contact point of the limit switch that is manually closed, 32 is the contact point of the limit switch that closes when the turning device is connected, and 33 is the contact point of the limit switch LS that closes when the turning device is completely detached. Contacts, 34 is a power source for the electric motor 10, 35 is a power source for the solenoid valve 36, 39 is a contact for the solenoid valve 36, a contact for driving the electric motor 10, 42 is a contact that closes immediately when the relay is activated, and the relay A contact that opens when the relay is disconnected, 43 is a contact that closes with a time delay when the relay is activated, and opens immediately when the relay is disconnected.
4 is a contact that opens with a time delay when the relay is activated and closes immediately when the relay is disconnected; 45 is a contact that opens immediately when the relay is activated and closes immediately when the relay is disconnected; and 46 is a contact that closes immediately when the relay is activated and closes immediately when the relay is disconnected. Each contact that opens with a delay is shown. Moreover, the broken line shows the relationship between the relay and the contact. The operation of the circuit shown in FIG. 4 is simple enough to be understood by those skilled in the art, and therefore will not be described here. Figure 7 shows an example of connecting a turning device with the circuit described above, where A is the starting current when the motor starts to rotate, B is the final current of the rotating reducer to the large gear in a stationary state, and Each figure shows the motor current when the gears make contact.
またCは揺動レバーの動きを示しており、両歯車がなか
なか噛み合わない状態を示している。従って第7図のB
およびCの時点において従来歯車が損傷するわけである
。第5図は本発明実施例における夕−ニング装置の始動
回路図である。Further, C shows the movement of the swing lever, and shows a state in which both gears are not easily engaged. Therefore, B in Figure 7
The conventional gear is damaged at the time point C and C. FIG. 5 is a starting circuit diagram of the evening device according to an embodiment of the present invention.
ターニング装置始動用の手動スイッチにより接点51を
閉じると、リレー54が励磁され接点55を閉じる。接
点83はリレー54によって閉じる言わゆる自己保持回
路用のものである。接点55が閉じると、リレー56が
働き、始動回路の接点58を開くが、これは次に述べる
回路が作動し終るに必要な時間が経過してから開くよう
に時間遅れを持たせている。リレー56は励磁されると
直ちに接点57を閉じるが、この接点は、接点58が開
き、リレー56の励磁が切れた場合、ある時間遅れをも
って開くよう時間遅れ特性を持たせてある。接点57が
閉じると、リレー59が働き、綾′点60を閉じて電磁
弁61に電源35より通電し、シリンダ27に作動流体
を与える。これによってターニング装置の揺動レバーが
噛み合い方向に回動させられる。リレー59の励磁は接
点62を閉じ、ここで自己保持機能が働くと同時に、接
点63を閉じ、リレー64を励磁する。この励磁により
接点80を閉じて電磁弁81に通電し、電磁弁61を通
じてシリンダ27に送られている作動流体の一部をオリ
フィス86を介して外部に逃す。このため、シリンダ2
7に送られる作動流体はその圧力が低くなり、シリンダ
の急激な動作が阻止される。またリレー64はある時間
遅れをもって接点64を閉じると、リレー66が励磁さ
れ、接点67を閉じる。この接点67の閉成により、リ
レー68が働き、ある時間遅れをもって接点69を開く
。このためリレー68は1回だけ励磁されることになる
。すなわち、この回路がもう一度薮断を操返えす前に接
点90が切れてしまう。この回路は、リレー64が働く
とある時間遅れをもって接点87が閉じるが、この遅延
時間は電動機のパルス動作が終了する時点に合わせる。
接点87が閉じると、リレー88が励磁され、接点89
を閉じて自己保持回路が作動する。リレー88は同時に
接点76を開き、リレー64の励磁を切ることによって
接点80を開き、電磁弁81の通電を断ってシリンダ2
7に送る作動流体の逃しを止める。リレー88は前述の
接点90を切り、電動機のパルス動作を繰返さないよう
にし、接点72を閉じる。When contact 51 is closed by a manual switch for starting the turning device, relay 54 is energized and contact 55 is closed. Contact 83 is for a so-called self-holding circuit closed by relay 54. When contact 55 closes, relay 56 operates and opens contact 58 of the starting circuit, which is delayed in time so that it opens only after the time required for the circuit described below to complete operation. When the relay 56 is energized, it immediately closes the contact 57, but this contact has a time delay characteristic so that when the contact 58 opens and the relay 56 is de-energized, it opens after a certain time delay. When the contact point 57 closes, the relay 59 operates, closing the trailing point 60, energizing the solenoid valve 61 from the power source 35, and supplying the cylinder 27 with working fluid. As a result, the swing lever of the turning device is rotated in the meshing direction. The energization of the relay 59 closes the contact 62, where the self-holding function operates, and at the same time, the contact 63 is closed and the relay 64 is energized. This excitation closes the contact 80 and energizes the solenoid valve 81, allowing a portion of the working fluid sent to the cylinder 27 through the solenoid valve 61 to escape to the outside through the orifice 86. Therefore, cylinder 2
The pressure of the working fluid sent to 7 is lowered, and sudden movement of the cylinder is prevented. Further, when the relay 64 closes the contact 64 with a certain time delay, the relay 66 is energized and the contact 67 is closed. Closing of contact 67 activates relay 68, which opens contact 69 after a certain time delay. Therefore, relay 68 is energized only once. In other words, the contact 90 is disconnected before this circuit can repeat the bush cutting operation. In this circuit, when the relay 64 operates, the contact 87 closes after a certain time delay, and this delay time is adjusted to the time when the pulse operation of the motor ends.
When contact 87 closes, relay 88 is energized and contact 89
is closed and the self-holding circuit is activated. Relay 88 simultaneously opens contact 76, de-energizes relay 64, opens contact 80, de-energizes solenoid valve 81, and closes cylinder 2.
Stop the release of the working fluid sent to 7. Relay 88 disconnects contact 90 previously described, prevents repeated pulsing of the motor, and closes contact 72.
接点52はターニング装置に取付けられたリミットスイ
ッチLS(図示せず)の接点で、歯車同志が完全噛み合
い状態に達すると、閉じるようにセットされている。従
って接点52が閉じるとIJレー74が働き、接点75
が閉じるが、この状態で接点72を閉じると電動機10
は連続通電される。ここで、タービンが自力で回動する
ようになると、ターニング装置が外れ、リミットスイッ
チLS(図示せず)によりこの状態が検出されて接点5
3を閉じる。この閉成によりリレー73が働き、接点7
7を開いて電動機を止め、接点91を閉じて次の始動に
そなえる。以上の動作の始動部分だけを順にまとめると
、スイッチ入れ−シリンダ用電磁弁2個通電−歯車不完
全噛み合い状態−電動機パルス作動−歯車完全噛み合い
状態−作動流体逃し電磁弁励磁断、電動機連続運転−作
動流体供給電磁弁励磁断となる。The contact 52 is a contact of a limit switch LS (not shown) attached to the turning device, and is set to close when the gears reach a state of complete meshing. Therefore, when the contact 52 closes, the IJ relay 74 operates, and the contact 75
is closed, but if the contact 72 is closed in this state, the motor 10
is continuously energized. Here, when the turbine begins to rotate on its own, the turning device is disengaged, this state is detected by the limit switch LS (not shown), and the contact 5
Close 3. This closing activates the relay 73, and the contact 7
7 is opened to stop the motor, and contact 91 is closed to prepare for the next start. To summarize only the starting part of the above operation in order, switch on - energization of two cylinder solenoid valves - gears incompletely engaged - motor pulse operation - gears fully engaged - working fluid relief solenoid valve excitation disconnected, motor continuous operation - The working fluid supply solenoid valve is deenergized.
第6図は本発明によるターニング装置の作動流体を示す
オシログラムで、Aは電動機のパルス通電電流、Bは連
続運転に入るときの電動機電流をそれぞれ示し、また電
動機にパルス状の通電をする前のシリングストロークの
C部分が不完全噛み合い状態を示すものである。FIG. 6 is an oscillogram showing the working fluid of the turning device according to the present invention, in which A shows the pulsed current of the motor, B shows the motor current when starting continuous operation, and also shows the current of the motor before pulsed current is applied to the motor. Portion C of the shilling stroke indicates an incompletely engaged state.
以上のように、本発明ではターニング装置の減速機最終
歯車を回転させないで、タービンロータに取付けた大歯
車に接触させ、なおその速度も適当に制御されているか
ら、歯車同志の衝突時の損傷がなくなり、更に従来技術
のものより円滑に始 .敷できる効果を有する。As described above, in the present invention, the final gear of the reduction gear of the turning device is not rotated, but is brought into contact with the large gear attached to the turbine rotor, and its speed is appropriately controlled, so that damage occurs when the gears collide with each other. It also eliminates the problem and starts more smoothly than the conventional technology. It has a spreading effect.
なお、以上の説明では言わゆるシーケンス回路を用いて
いるが、この種の電気制御回路には同じような動作をう
るため多くの回路が組めることは勿論であり、第5図は
ほんの一例を示しているに過ぎない。Although the above explanation uses a so-called sequence circuit, it goes without saying that this type of electrical control circuit can be constructed with many circuits to achieve similar operations, and Figure 5 shows just one example. It's just that.
第1図はターニング装置の側断面図、第2図は第1図の
1−1線で示した部分の断面図、第3図は、減速機の薮
断機構を示す第1図と同様な説明図、第4図は従来のタ
ーニング装置の始動回路図、第5図は本発明の一実施例
を示すターニング装置の始動回路図、第6図は、本発明
の一実施例のターニング装置の始動時オツシログラム、
第7図は従来のターニング装置の始動時オッシログラム
である。
1……タービンロータ、2・・・・・・大歯車、3・・
・・・・減速機最終歯車、6,1 1,13,14・・
…・減速歯車、10・・・・・・電動機、16・・・・
・・大笠歯車、17・・・・・・小笠歯車、20・・・
・・・揺動レバー、27・・・・・・シリンダ、36…
…電磁弁、61,81……電磁弁、86……オリフィス
。
第1図
第2図
第3図
第4図
第5図
第6図
第7図Fig. 1 is a side sectional view of the turning device, Fig. 2 is a sectional view of the portion indicated by line 1-1 in Fig. 1, and Fig. 3 is similar to Fig. 1, showing the bush cutting mechanism of the reducer. 4 is a starting circuit diagram of a conventional turning device, FIG. 5 is a starting circuit diagram of a turning device showing an embodiment of the present invention, and FIG. 6 is a starting circuit diagram of a turning device according to an embodiment of the present invention. Oscillogram at startup,
FIG. 7 is an oscillogram at startup of a conventional turning device. 1... Turbine rotor, 2... Large gear, 3...
...Reducer final gear, 6,1 1,13,14...
...Reduction gear, 10...Electric motor, 16...
...Ogasa Gear, 17...Ogasa Gear, 20...
... Swinging lever, 27... Cylinder, 36...
... Solenoid valve, 61, 81 ... Solenoid valve, 86 ... Orifice. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7
Claims (1)
転力を増幅してタービンロータに伝達する減速機と、こ
の減速機を空気または油圧シリンダを用いてタービンロ
ータに断接する機構とを有するものにおいて、空気また
は油圧を前記シリンダに送り、タービンロータに取付け
た歯車と減速機最終歯車との不完全噛み合い状態を得た
後、前記電動機に極微小時間の通電を行って完全噛み合
い状態とし、この状態を確認後、前記電動機に連続的に
通電するよう制御される起動回路を設け、前記電動機を
静止状態においたまま、前記両歯車を連結するようにし
たことを特徴とするタービンロータのターニング装置。 2 タービンロータ駆動用の電動機と、この電動機の回
転力を増幅してタービンロータに伝達する減速機と、こ
の減速機を空気または油圧シリンダを用いてタービンロ
ータに断接する機構とを有するものにおいて、空気また
は油圧を前記シリンダに送り、タービンロータに取付け
た歯車と減速機最終歯車との不完全噛み合い状態を得た
後、前記電動機に極微小時間の通電を行って完全噛み合
い状態とし、この状態を確認後、前記電動機に連続的に
通電するよう制御される起動回路を設け、かつ上記ター
ビンロータに取付けた歯車と減速機最終歯車とを不完全
噛み合い状態にする際、前記シリンダに供給する空気ま
たは油圧源の圧力を低くすることにより前記歯車同志の
最初の接触時の衝撃を緩める空気または油圧調整装置を
そなえたことを特徴とするタービンロータのターニング
装置。[Claims] 1. An electric motor for driving a turbine rotor, a reducer that amplifies the rotational force of this electric motor and transmits it to the turbine rotor, and a mechanism that connects and disconnects this reducer to the turbine rotor using an air or hydraulic cylinder. After supplying air or hydraulic pressure to the cylinder to obtain a state of incomplete meshing between the gear attached to the turbine rotor and the final gear of the reducer, the electric motor is energized for a very short period of time to achieve complete meshing. state, and after confirming this state, a starting circuit is provided that controls the electric motor to be continuously energized, and the two gears are connected while the electric motor remains in a stationary state. Rotor turning device. 2. A motor that has an electric motor for driving a turbine rotor, a reducer that amplifies the rotational force of the electric motor and transmits it to the turbine rotor, and a mechanism that connects and disconnects the reducer to the turbine rotor using an air or hydraulic cylinder, After air or hydraulic pressure is sent to the cylinder to obtain an incompletely meshed state between the gear attached to the turbine rotor and the final gear of the reduction gear, the electric motor is energized for a very short period of time to achieve a fully meshed state, and this state is maintained. After confirmation, a starting circuit that is controlled to continuously energize the electric motor is provided, and when the gear attached to the turbine rotor and the final gear of the reduction gear are brought into an incompletely meshed state, air or air supplied to the cylinder is provided. 1. A turning device for a turbine rotor, comprising an air or hydraulic adjustment device that reduces the pressure of a hydraulic source to reduce the impact upon initial contact between the gears.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11539577A JPS6014889B2 (en) | 1977-09-26 | 1977-09-26 | Turbine rotor turning device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11539577A JPS6014889B2 (en) | 1977-09-26 | 1977-09-26 | Turbine rotor turning device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5447905A JPS5447905A (en) | 1979-04-16 |
JPS6014889B2 true JPS6014889B2 (en) | 1985-04-16 |
Family
ID=14661485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11539577A Expired JPS6014889B2 (en) | 1977-09-26 | 1977-09-26 | Turbine rotor turning device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6014889B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4395991A (en) * | 1981-01-23 | 1983-08-02 | Yamaha Hatsudoki Kabushiki Kaisha | Emission preventing system of evaporated fuel for internal combustion engine |
JPS6081213U (en) * | 1983-11-10 | 1985-06-05 | 日本鋼管株式会社 | Turning device for large rotating machine |
JPH06102580B2 (en) * | 1986-02-03 | 1994-12-14 | 株式会社日立製作所 | Bonding body of ceramics and metal and bonding method |
-
1977
- 1977-09-26 JP JP11539577A patent/JPS6014889B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5447905A (en) | 1979-04-16 |
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