JPS629768B2 - - Google Patents
Info
- Publication number
- JPS629768B2 JPS629768B2 JP55148327A JP14832780A JPS629768B2 JP S629768 B2 JPS629768 B2 JP S629768B2 JP 55148327 A JP55148327 A JP 55148327A JP 14832780 A JP14832780 A JP 14832780A JP S629768 B2 JPS629768 B2 JP S629768B2
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pump
- pressure
- regular
- standby
- hydraulic
- 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
- 239000010720 hydraulic oil Substances 0.000 claims description 23
- 239000012530 fluid Substances 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 239000003921 oil Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
Description
【発明の詳細な説明】
本発明は例えば原子炉発電所用に利用される可
変速流体継手の作動油供給装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hydraulic oil supply device for a variable speed fluid coupling used, for example, in a nuclear power plant.
第１図に示す如く可変速流体継手において、入
力軸１に連結するインペラ２側から供給される作
動油は、インペラ２と出力軸４に連結するランナ
３により形成される作動室５内で油循環作用を行
なつた後、すくい管室６に流入される。このすく
い管室６内の作動油はすくい管７によつてすくわ
れた後、油タンク８へ戻される。このとき、イン
ペラ２への作動油は作動油供給装置９から供給さ
れる。 As shown in FIG. 1, in the variable speed fluid coupling, hydraulic oil is supplied from the side of the impeller 2 connected to the input shaft 1, and the hydraulic oil is supplied from the side of the impeller 2 connected to the input shaft 1. After performing the circulation action, it flows into the scoop tube chamber 6. The hydraulic oil in the scoop tube chamber 6 is scooped up by the scoop tube 7 and then returned to the oil tank 8. At this time, hydraulic oil is supplied to the impeller 2 from the hydraulic oil supply device 9.
この作動油供給装置９は主として第２図に示す
如く、常時運転され、タンク８から可変速流体継
手のインペラ２へ作動油を供給する例えばスクリ
ユー型の常用油圧ポンプ１０と常用油圧ポンプ１
０が故障などで使用不能時のみ運転される予備用
油圧ポンプ１１とから成つており、この常用油圧
ポンプ１０と予備用油圧ポンプ１１は吐出側が高
圧側回路１２より接続されている。そして常用油
圧ポンプ１０が運転中は、吐出される作動油の一
部を高圧側回路１２を介して停止中の予備用油圧
ポンプ１１の軸受、軸封部へ供給していた。 As shown in FIG. 2, this hydraulic oil supply device 9 is operated at all times, and supplies hydraulic oil from the tank 8 to the impeller 2 of the variable speed fluid coupling.
The regular hydraulic pump 10 and the backup hydraulic pump 11 are connected at their discharge sides through a high-pressure side circuit 12. While the regular hydraulic pump 10 is in operation, a portion of the discharged hydraulic oil is supplied via the high-pressure side circuit 12 to the bearing and shaft seal of the standby hydraulic pump 11 that is stopped.
ところで、上記の油圧回路では、停止中の予備
用油圧ポンプ１１の吸込側に、例えば軸封部から
入り込む空気や油中気泡から分離される空気など
の空気溜りが発生する。この状態で常用油圧ポン
プ１０から予備用油圧ポンプ１１へ運転が切換わ
つた場合には、前記空気溜りにより吐出圧力の立
上りが遅れることになるため、可変速流体継手の
出力軸側回転速度が大きく変動する問題点を有し
ている。 By the way, in the above-mentioned hydraulic circuit, an air pocket such as air entering from the shaft seal portion or air separated from air bubbles in oil is generated on the suction side of the standby hydraulic pump 11 while it is stopped. If operation is switched from the regular hydraulic pump 10 to the standby hydraulic pump 11 in this state, the rising of the discharge pressure will be delayed due to the air pocket, so the rotation speed on the output shaft side of the variable speed fluid coupling will increase. It has fluctuating problems.
本発明は上記の点に鑑み、作動油供給装置内に
発生する空気溜りを除去することによつて可変速
流体継手の出力軸側回転速度の変動を大幅に低減
することを目的とする。 In view of the above points, it is an object of the present invention to significantly reduce fluctuations in the rotational speed on the output shaft side of a variable speed fluid coupling by removing air pockets generated within a hydraulic oil supply device.
以下本発明の一実施例を図面により説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第３図において、第１図と同一符号のものは同
一部分を示す。 In FIG. 3, the same reference numerals as in FIG. 1 indicate the same parts.
１３は可変速流体継手のインペラ２へ常時作動
油を供給するスクリユー形の常用油圧ポンプで、
この常用油圧ポンプ１３は常時運転される。１４
は常用油圧ポンプ１３が故障などで使用不能にな
つたときのみ運転される予備用油圧ポンプ、１５
は常用油圧ポンプ１３と予備用油圧ポンプ１４の
吸込側を接続する低圧側回路、１６は前記高圧側
回路１２の圧力を検出する圧力検出器、１７，１
８は逆止弁、１９，２０，２１は絞り、２２，２
３は圧力調整弁を示す。 13 is a screw type regular hydraulic pump that constantly supplies hydraulic oil to the impeller 2 of the variable speed fluid coupling;
This regular hydraulic pump 13 is always operated. 14
15 is a standby hydraulic pump that is operated only when the regular hydraulic pump 13 becomes unusable due to a failure or the like;
1 is a low pressure side circuit that connects the suction side of the regular hydraulic pump 13 and the standby hydraulic pump 14; 16 is a pressure detector that detects the pressure of the high pressure side circuit 12;
8 is a check valve, 19, 20, 21 is a throttle, 22, 2
3 indicates a pressure regulating valve.
第４図は本発明の作動油供給装置の具体例を示
すもので、２４は前記油タンク８側に接続する吸
込口、２５はインペラ２側に接続する吐出口、２
６はスクリユーロータ２７内に形成され、かつ吐
出側の作動油の一部を軸受２８および軸封部２９
へ供給する油孔を示す。 FIG. 4 shows a specific example of the hydraulic oil supply device of the present invention, in which 24 is a suction port connected to the oil tank 8 side, 25 is a discharge port connected to the impeller 2 side, 2
6 is formed inside the screw rotor 27, and supplies a part of the hydraulic oil on the discharge side to the bearing 28 and the shaft seal part 29.
Shows the oil hole that supplies oil to the
次に本発明装置における作動を説明する。 Next, the operation of the apparatus of the present invention will be explained.
油タンク８より吸込口２４を介して流入した作
動油は、運転中の常用油圧ポンプ１３により加圧
され、吐出口２５からインペラ２側へ供給され
る。そして、停止中の予備用油圧ポンプ１４の低
圧側に溜る空気は、運転中の常用油圧ポンプ１３
の吸込側に生じる吸込圧力（負圧）により吸い出
される。このとき、運転中の常用油圧ポンプ１３
の低圧側回路１５の圧力は絞り１９および２０に
より約−0.1Kg／cm2・ｇに調整することにより、
前記空気が効果的に流れることが実験により確認
された。また、停中の予備用油圧ポンプ１４の軸
受２８および軸封部２９には、運転中の常用油圧
ポンプ１３からの作動油の一部が高圧側回路１
２、絞り２１およびスクリユーロータ２７の油孔
２６を介して供給される。 Hydraulic oil flowing from the oil tank 8 through the suction port 24 is pressurized by the operating hydraulic pump 13, and is supplied from the discharge port 25 to the impeller 2 side. The air accumulated on the low pressure side of the standby hydraulic pump 14 that is stopped is removed from the regular hydraulic pump 14 that is in operation.
It is sucked out by the suction pressure (negative pressure) generated on the suction side. At this time, the regular hydraulic pump 13 in operation
By adjusting the pressure of the low pressure side circuit 15 to approximately -0.1Kg/cm 2 ·g using the throttles 19 and 20,
It has been confirmed through experiments that the air flows effectively. In addition, a portion of the hydraulic oil from the regular hydraulic pump 13 in operation is transferred to the bearing 28 and shaft seal 29 of the standby hydraulic pump 14 that is not in operation.
2. It is supplied through the aperture 21 and the oil hole 26 of the screw rotor 27.
このように運転中の常用油圧ポンプ１３の吸込
圧力によつて停止中の予備用油圧ポンプ１４に発
生する空気溜りを除去することにより、常用油圧
ポンプ１３から予備用油圧ポンプ１４への運転切
換の際の油圧変動は、定常圧力2.3Kg／cm2・ｇに
対し、最低圧力は1.4Kg／cm2・ｇと低下の幅が小
さくなると共に定常圧力への復帰時間も約1.5秒
に短縮される。したがつて、可変速流体継手の出
力軸側の速度変動も約１％となる。 By removing the air pocket generated in the stopped standby hydraulic pump 14 due to the suction pressure of the running normal use hydraulic pump 13 in this way, the operation can be switched from the normal use hydraulic pump 13 to the standby hydraulic pump 14. Regarding oil pressure fluctuations, the steady pressure is 2.3 Kg/cm 2 g, while the lowest pressure is 1.4 Kg/cm 2 g, which reduces the width of the drop and shortens the time to return to steady pressure to about 1.5 seconds. . Therefore, the speed fluctuation on the output shaft side of the variable speed fluid coupling is also about 1%.
ちなみに、従来の作動油供給装置を用いた場合
には、吐出側の油圧が定常圧力2.3Kg／cm2・ｇか
ら最低圧力0.7Kg／cm2・ｇまで低下し、定常圧力
への復帰時間も約６秒を要していた。 By the way, when using a conventional hydraulic oil supply device, the oil pressure on the discharge side drops from a steady pressure of 2.3 kg/cm 2 g to a minimum pressure of 0.7 kg/cm 2 g, and it takes a long time to return to the steady pressure. It took about 6 seconds.
以上詳述したように本発明の可変速流体継手の
作動油供給装置によれば、作動油供給装置を構成
する常用油圧ポンプと予備用油圧ポンプの吸込側
を接続するようにしたので、可変速流体継手の出
力軸側回転速度の変動を大幅に低減させることが
できる。 As detailed above, according to the hydraulic oil supply device for a variable speed fluid joint of the present invention, the suction sides of the regular hydraulic pump and the standby hydraulic pump constituting the hydraulic oil supply device are connected, so that the variable speed Fluctuations in the rotational speed on the output shaft side of the fluid coupling can be significantly reduced.
第１図は可変速流体継手の概略図、第２図は従
来の可変速流体継手の作動油供給装置における油
圧回路を示す図、第３図は本発明の可変速流体継
手の作動油供給装置における油圧回路を示す図、
第４図は本発明の作動油供給装置の具体例を示す
図である。
１２……高圧側回路、１３……常用油圧ポン
プ、１４……予備油圧ポンプ、１５……低圧側回
路。
Fig. 1 is a schematic diagram of a variable speed fluid coupling, Fig. 2 is a diagram showing a hydraulic circuit in a conventional hydraulic oil supply device for a variable speed fluid coupling, and Fig. 3 is a hydraulic oil supply device for a variable speed fluid coupling of the present invention. A diagram showing a hydraulic circuit in
FIG. 4 is a diagram showing a specific example of the hydraulic oil supply device of the present invention. 12...High pressure side circuit, 13... Regular hydraulic pump, 14... Reserve hydraulic pump, 15... Low pressure side circuit.
Claims (1)
ンプが停止中のみ運転される予備用油圧ポンプの
吐出側を高圧側回路により接続する作動油供給装
置を備えた可変速流体継手において、前記常用油
圧ポンプと予備用油圧ポンプの吸込側を低圧側回
路により接続するようにし、常用油圧ポンプの吸
込圧力により予備用油圧ポンプ内に発生する空気
溜りを除去するようにしたことを特徴とする可変
速流体継手の作動油供給装置。1. In a variable speed fluid coupling equipped with a hydraulic oil supply device that connects the discharge side of a regular hydraulic pump that is always operated and a standby hydraulic pump that is operated only when the regular hydraulic pump is stopped by a high-pressure side circuit, the regular hydraulic pump A variable speed fluid coupling characterized in that the suction side of the standby hydraulic pump is connected to the standby hydraulic pump by a low-pressure side circuit, and air pockets generated in the standby hydraulic pump are removed by the suction pressure of the normal use hydraulic pump. Hydraulic oil supply system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55148327A JPS5773237A (en) | 1980-10-24 | 1980-10-24 | Working-oil supplier for variable-speed fluid coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55148327A JPS5773237A (en) | 1980-10-24 | 1980-10-24 | Working-oil supplier for variable-speed fluid coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5773237A JPS5773237A (en) | 1982-05-07 |
| JPS629768B2 true JPS629768B2 (en) | 1987-03-02 |
Family
ID=15450291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55148327A Granted JPS5773237A (en) | 1980-10-24 | 1980-10-24 | Working-oil supplier for variable-speed fluid coupling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5773237A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57194124A (en) * | 1981-05-22 | 1982-11-29 | Tokyo Tatsuno Co Ltd | Brake lamp for bycycle |
| JP5283978B2 (en) * | 2008-06-11 | 2013-09-04 | 株式会社東芝 | Hydraulic generator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS487691U (en) * | 1971-06-11 | 1973-01-27 | ||
| JPS52104079U (en) * | 1976-02-06 | 1977-08-08 |
-
1980
- 1980-10-24 JP JP55148327A patent/JPS5773237A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5773237A (en) | 1982-05-07 |
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