JPH01301999A - Lubricant pump driving method for ratary machine - Google Patents
Lubricant pump driving method for ratary machineInfo
- Publication number
- JPH01301999A JPH01301999A JP13176188A JP13176188A JPH01301999A JP H01301999 A JPH01301999 A JP H01301999A JP 13176188 A JP13176188 A JP 13176188A JP 13176188 A JP13176188 A JP 13176188A JP H01301999 A JPH01301999 A JP H01301999A
- Authority
- JP
- Japan
- Prior art keywords
- lubricating oil
- oil pump
- inverter
- power
- lubricant pump
- 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.)
- Pending
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ブロワなどの回転機械における潤滑油ポンプ
駆動方法に関し、更に詳細には停電時に潤滑油ポンプを
駆動する方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for driving a lubricating oil pump in a rotating machine such as a blower, and more particularly to a method for driving a lubricating oil pump during a power outage.
従来の技術
主電動機により駆動されるブロワなどの回転機械におい
ては、一般に、第２図に示されているように、回転機械
（例えば単段ブロワ）ｌ及び主電動機（例えばかご形誘
導電動機）２の各回転軸 １ａ。BACKGROUND OF THE INVENTION In a rotating machine such as a blower driven by a traction motor, generally, as shown in FIG. Each axis of rotation 1a.
２ａを支持する複数の軸受（例えばすべり軸受）３に、
主油タンク４内の潤滑油を強制的に供給する潤滑油ポン
プ５を潤滑油ポンプ用電動機６で駆動するようにしてお
り、この潤滑油ポンプ用電動機６には電源ライン７を通
して電力が供給されるようになっている。A plurality of bearings (for example, sliding bearings) 3 that support 2a,
A lubricating oil pump 5 that forcibly supplies lubricating oil in the main oil tank 4 is driven by a lubricating oil pump electric motor 6, and electric power is supplied to this lubricating oil pump electric motor 6 through a power line 7. It has become so.
しかして、このようなシステムにおいては、停電により
電力が潤滑油ポンプ用電動機６に供給されなくなると、
潤滑油ポンプ５が停止して、潤滑油が各軸受３に送られ
なくなり、したがって停電直後の回転機械ｌ及び主電動
機２の回転軸 １ａ。However, in such a system, if power is no longer supplied to the lubricating oil pump motor 6 due to a power outage,
The lubricating oil pump 5 stops, and lubricating oil is no longer sent to each bearing 3, so the rotating shaft 1a of the rotating machine 1 and the main motor 2 immediately after a power outage.
２ａの慣性回転によりこれらの軸受３に摩耗、発熱など
によって損傷が生じる恐れがある。The inertial rotation of the bearings 2a may cause damage to these bearings 3 due to wear, heat generation, etc.
そこで、第２図に示した従来例では、ヘッドタンク８を
高い所に設置し、停電時にはこのヘッドタンク８から潤
滑油を各軸受３に供給できるようにしている。Therefore, in the conventional example shown in FIG. 2, the head tank 8 is installed at a high location so that lubricating oil can be supplied to each bearing 3 from the head tank 8 in the event of a power outage.
潤滑油ポンプ５を回転機械１の回転軸１ａに減速歯車装
置９を介して連結して、いわゆる “直結ポンプとし、
回転機械ｌ及び主電動機２の回転軸ｌａ、２ａが回転す
る限り潤滑油ポンプ５を駆動して、潤滑油を各軸受３に
供給できるようにしている。The lubricating oil pump 5 is connected to the rotating shaft 1a of the rotating machine 1 via a reduction gear device 9 to form a so-called "directly coupled pump,"
As long as the rotary machine 1 and the rotating shafts la and 2a of the main electric motor 2 rotate, the lubricating oil pump 5 is driven so that lubricating oil can be supplied to each bearing 3.
なお、第２及び３図において、１０はインバータ、１１
は絞り弁、１２は逆止弁である。In addition, in FIGS. 2 and 3, 10 is an inverter, and 11 is an inverter.
1 is a throttle valve, and 12 is a check valve.
発明が解決しようとする課題
以上述べた従来技術は、しかし、次に述べるような問題
があった。Problems to be Solved by the Invention The prior art described above, however, has the following problems.
すなわち、第２図に示したヘッドタンク方法では、ヘッ
ドタンク８のみならず、そのための配管、昇順などの面
倒な設置が必要となり、また潤滑油の量がその分だけ多
くなって、主油タンク４も停止時のヘッドタンク８から
の戻り油量を考慮して相当大きくしなければならず、し
たがって設備全体のコストが高くつくとともに、据付面
積が大きくなる不具合があった。In other words, in the head tank method shown in Fig. 2, not only the head tank 8 but also the piping, ascending order, and other troublesome installations are required, and the amount of lubricating oil increases accordingly. 4 also had to be made considerably large in consideration of the amount of oil returned from the head tank 8 when stopped, which resulted in problems such as increasing the cost of the entire equipment and increasing the installation area.
また、第３図に示した直結ポンプ方法では、直結ポンプ
（潤滑油ポンプ）５の回転速度をあまり高くできないた
めに、回転機械１の高速回転軸１ａに直接に連結できず
、したがって前述したように減速歯車装置９などを設け
る必要があり、このため機構が複雑になってコストアッ
プとなる不具合があった。また、主電動機２により常時
直結ポンプ５を駆動するための見かけ上の動力損失が生
じる不具合があった。Furthermore, in the direct-coupling pump method shown in FIG. 3, since the rotational speed of the direct-coupling pump (lubricating oil pump) 5 cannot be made very high, it cannot be directly coupled to the high-speed rotating shaft 1a of the rotating machine 1, and therefore, as described above, Since it is necessary to provide a reduction gear device 9 and the like, the mechanism becomes complicated and costs increase. Further, there is a problem in that an apparent power loss occurs because the main electric motor 2 constantly drives the directly connected pump 5.
課題を解決するための手段
本発明は、このような従来技術の課題を解決するために
、回転機械及びこの回転機械を駆動する主電動機の各回
転軸を支持する複数の軸受に潤滑油を強制的に供給する
潤滑油ポンプを潤滑油ポンプ用電動機で駆動する方法に
おいて、回生機能を有するインバータにより主電動機を
停電時に発電機として作動させ、その発生電力を潤滑油
ポンプ用電動機に供給して潤滑油ポンプを駆動するよう
にしたものである。Means for Solving the Problems In order to solve the problems of the prior art, the present invention forcibly applies lubricating oil to a plurality of bearings that support each rotating shaft of a rotating machine and a main electric motor that drives this rotating machine. In this method, the main motor is operated as a generator during a power outage using an inverter with a regeneration function, and the generated power is supplied to the lubricant pump motor for lubrication. It is designed to drive an oil pump.
作用
このような手段によれば、したがって、停電時において
も、回転機械及び主電動機の回転軸が慣性による回転を
停止するまで、潤滑油ポンプが潤滑油を各軸受に供給す
る。According to such means, even during a power outage, the lubricating oil pump supplies lubricating oil to each bearing until the rotating shafts of the rotating machine and the main motor stop rotating due to inertia.
実施例
以下第１図を参照して本発明の一実施例について詳述す
る。なお、第１図において、第２及び３図に示したもの
と同一の部分には同一の符号を付して、その詳細な説明
は省略する。EXAMPLE Hereinafter, an example of the present invention will be described in detail with reference to FIG. In FIG. 1, the same parts as those shown in FIGS. 2 and 3 are designated by the same reference numerals, and detailed explanation thereof will be omitted.
しかして、本実施例によれば、回転機械１を駆動する主
電動機２と電源（図示せず）との間には、関
電源側から順次停電により自動的に解放する機能を有す
る開閉器１３、及び回生機能を有するインバータ１４が
設けられている。そして、これらの開閉器１３とインバ
ーター４とを結ぶ電源ライン７′の途中部分からライン
１５が分岐され、この分岐ライン１５を通して電力が潤
滑油ポンプ用電動機６に供給されて、潤滑油ポンプ５が
駆動されるようになっている。According to this embodiment, a switch 13 having a function of automatically opening the switch from the power source side in the event of a power outage is installed between the main motor 2 that drives the rotating machine 1 and a power source (not shown). , and an inverter 14 having a regeneration function. A line 15 is branched from the middle of the power line 7' connecting these switches 13 and the inverter 4, and electric power is supplied to the lubricant pump electric motor 6 through this branch line 15, so that the lubricant pump 5 is operated. It is designed to be driven.
この電力は、平常時には開閉器１３が閉じているくし で、電源から供給される。This power is supplied to the comb whose switch 13 is closed under normal conditions. and is supplied from the power supply.
しかし、停電時には、開閉器１３が自動的に開いて電源
を開放すると同時に、回生機能を有するインバータ１４
により主電動機２が発電機として作動し、回転機械１及
び主電動機２の回転軸１ａ、２ａが慣性による回転を停
止するまで、その回転力を利用して電源と同−電圧及び
同一周波数をもつ電力を発生し、この発生電力が分岐ラ
イン１５を通して潤滑油ポンプ用電動機６に供給されて
、潤滑油ポンプ５が駆動される。したがって、停止時に
おいても、回転機ｍｌ及び主電動機２の回転軸１ａ。However, in the event of a power outage, the switch 13 automatically opens to release the power, and at the same time the inverter 14, which has a regeneration function,
The main motor 2 operates as a generator, and the rotating shafts 1a and 2a of the rotating machine 1 and the main motor 2 have the same voltage and frequency as the power source by using the rotational force until they stop rotating due to inertia. Electric power is generated, and the generated electric power is supplied to the lubricating oil pump electric motor 6 through the branch line 15, and the lubricating oil pump 5 is driven. Therefore, even when stopped, the rotating shaft 1a of the rotating machine ml and the main motor 2.
２ａが慣性による回転を停止するまで、潤滑油ポンプ５
が潤滑油を各軸受３に供給する。Lubricating oil pump 5 until 2a stops rotating due to inertia.
supplies lubricating oil to each bearing 3.
なお、第１図に点線で示すように、電源ライン７′の分
岐ライン結合点よりも下流側部分又は分岐ライン１５の
途中部分にトランス１６又は１７を設けることにより、
２つの電動機２及び６の電圧を同一にしなくてもよいよ
うにすることができる。In addition, as shown by the dotted line in FIG. 1, by providing the transformer 16 or 17 in the downstream part of the power line 7' from the branch line connection point or in the middle part of the branch line 15,
It is possible to eliminate the need for the voltages of the two electric motors 2 and 6 to be the same.
発明の効果
以上述べたように、本発明によれば、回転機械を駆動す
る主電動機を停電時には回生機能を有するインバータに
より発電機として作動させ、これにより回転機械及び主
電動機の回転軸が慣性による回転を停止するまで、その
回転力を利用して電力を発生させ、この発生電力を潤滑
油ポンプ用電動機に供給して、潤滑油ポンプを連続して
駆動するようにしているので、従来例の如きヘッドタン
クを設けたり、又は潤滑油ポンプを回転機械の直結ポン
プとしたりする必要はない。Effects of the Invention As described above, according to the present invention, in the event of a power outage, the main motor that drives a rotating machine is operated as a generator by an inverter having a regeneration function, and as a result, the rotating shaft of the rotating machine and the main motor is rotated due to inertia. The rotational force is used to generate electricity until the rotation stops, and this generated electricity is supplied to the lubricating oil pump motor to continuously drive the lubricating oil pump, which is different from the conventional method. There is no need to provide such a head tank or to connect the lubricating oil pump directly to the rotating machine.
したがって、本発明によれば、ヘッドタンク設置により
不具合を解消し、ヘッドタンク及びそのための配管、昇
順などの面倒な設置をなくし、また潤滑油量の減少、主
油タンクの小型化をなし、これにより設備全体のコスト
を低くするとともに、据付面積を縮小することができる
。Therefore, according to the present invention, the problem is solved by installing a head tank, the troublesome installation of the head tank and its piping, ascending order, etc. is eliminated, and the amount of lubricating oil is reduced and the main oil tank is made smaller. This makes it possible to lower the cost of the entire equipment and reduce the installation area.
また、同時に、本発明によれば、潤滑油ポンプを回転機
械の直結ポンプとすることによる不具合を解消し、減速
歯車装置などの設置を不要にして、コストを低減し、か
つ主電動機により常時直結ポンプを駆動するための見か
け上の動力損失をなくすことができる。At the same time, according to the present invention, the problems caused by using a lubricating oil pump as a pump directly connected to a rotating machine are eliminated, the installation of a reduction gear device, etc. is no longer necessary, reducing costs, and the main motor is always directly connected. Apparent power loss for driving the pump can be eliminated.
第１図は本発明の一実施例を示す図、第２図及び第３図
は２つの異なる従来例を示す図である。
ｌ・・回転機械、１ａ・・回転軸、２・・主電動機、２
ａ・・回転軸、３・・軸受、４・・主油タンク、５・・
潤滑油ポンプ、６・・潤滑油ポンプ用電動機、７．７′
・・電源ライン、８・・ヘッドタンク、９・・減速歯
車装置、１０・・インバータ、１１・・絞り弁、１２・
・逆止弁、１３・・開閉器、１４・・回生機能を有する
インバータ、１５・・分岐（ほか１名）
第１図
第２図FIG. 1 shows one embodiment of the present invention, and FIGS. 2 and 3 show two different conventional examples. l... Rotating machine, 1a... Rotating shaft, 2... Main motor, 2
a... Rotating shaft, 3... Bearing, 4... Main oil tank, 5...
Lubricating oil pump, 6...Lubricating oil pump electric motor, 7.7'
...power line, 8..head tank, 9..reduction gear device, 10..inverter, 11..throttle valve, 12..
・Check valve, 13... Switch, 14... Inverter with regeneration function, 15... Branch (1 other person) Figure 1 Figure 2
Claims (1)
軸を支持する複数の軸受に潤滑油を強制的に供給する潤
滑油ポンプを潤滑油ポンプ用電動機で駆動する方法にお
いて、回生機能を有するインバータにより主電動機を停
電時に発電機として作動させ、その発生電力を潤滑油ポ
ンプ用電動機に供給して潤滑油ポンプを駆動するように
したことを特徴とする、回転機械における潤滑油ポンプ
駆動方法。In a method of driving a lubricating oil pump, which forcibly supplies lubricating oil to a plurality of bearings supporting each rotating shaft of a rotating machine and a main electric motor that drives the rotating machine, with an electric motor for the lubricating oil pump, an inverter having a regeneration function is used. A method for driving a lubricating oil pump in a rotating machine, characterized in that the main electric motor is operated as a generator during a power outage, and the generated power is supplied to a lubricating oil pump electric motor to drive the lubricating oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13176188A JPH01301999A (en) | 1988-05-31 | 1988-05-31 | Lubricant pump driving method for ratary machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13176188A JPH01301999A (en) | 1988-05-31 | 1988-05-31 | Lubricant pump driving method for ratary machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01301999A true JPH01301999A (en) | 1989-12-06 |
Family
ID=15065558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13176188A Pending JPH01301999A (en) | 1988-05-31 | 1988-05-31 | Lubricant pump driving method for ratary machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01301999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3193021A1 (en) * | 2016-01-15 | 2017-07-19 | Panasonic Intellectual Property Management Co., Ltd. | Turbocompressor apparatus |
-
1988
- 1988-05-31 JP JP13176188A patent/JPH01301999A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3193021A1 (en) * | 2016-01-15 | 2017-07-19 | Panasonic Intellectual Property Management Co., Ltd. | Turbocompressor apparatus |
| US20170207733A1 (en) * | 2016-01-15 | 2017-07-20 | Panasonic Intellectual Property Management Co., Ltd. | Turbocompressor apparatus |
| CN106982016A (en) * | 2016-01-15 | 2017-07-25 | 松下知识产权经营株式会社 | Turbo-compressor device |
| JP2017131097A (en) * | 2016-01-15 | 2017-07-27 | パナソニックＩｐマネジメント株式会社 | Turbo compressor device |
| US10560042B2 (en) | 2016-01-15 | 2020-02-11 | Panasonic Intellectual Property Management Co., Ltd. | Turbocompressor comprising a compressor motor generating regenerative electric power by regenerative driving capable of driving a compressor motor |
| CN106982016B (en) * | 2016-01-15 | 2021-11-26 | 松下知识产权经营株式会社 | Turbo compressor device |
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