JP2015213383A - Rotary electric machine - Google Patents

Rotary electric machine Download PDF

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JP2015213383A
JP2015213383A JP2014094579A JP2014094579A JP2015213383A JP 2015213383 A JP2015213383 A JP 2015213383A JP 2014094579 A JP2014094579 A JP 2014094579A JP 2014094579 A JP2014094579 A JP 2014094579A JP 2015213383 A JP2015213383 A JP 2015213383A
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grease
electrical machine
rotating electrical
supply device
electric machine
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JP6129111B2 (en
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山崎　隆
Takashi Yamazaki
隆 山崎
啓太 山野
keita Yamano
啓太 山野
美治 行実
Miharu Yukimi
美治 行実
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Toshiba Corp
Toshiba Mitsubishi Electric Industrial Systems Corp
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Toshiba Corp
Toshiba Mitsubishi Electric Industrial Systems Corp
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Priority to JP2014094579A priority Critical patent/JP6129111B2/en
Priority to CN201510214203.5A priority patent/CN105042310B/en
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Abstract

PROBLEM TO BE SOLVED: To provide a rotary electric machine which improves a grease supply device thereby preventing water from entering thereinto even in a submergence state.SOLUTION: A rotary electric machine includes a grease supply device 25 which is provided at an exterior part of a rotary electric machine body 11 and supplies grease to a lubrication part 18 in the rotary electric machine. In the grease supply device 25, an inner end part has a grease pipe 26 leading to the lubrication part 18. A socket 27 having a through passage 27a is connected to an outer end part of the grease pipe 26. An oil supply port attachment seat 28 having a recessed part space 28b, in which the other end of an attachment hole 28a, which leads to the through passage 27a at one end, opens at a bottom surface, is connected to the socket 27. A grease nipple 29 connected to the attachment hole 28a is stored in the recessed part space 28b. The recessed part space 28b is closed by a lid 31 through a packing 30 in a fluid-tight manner.

Description

本発明の実施形態は、グリース供給装置を改良した回転電機に関する。   Embodiments described herein relate generally to a rotating electrical machine having an improved grease supply device.

発電機や電動機などの回転電機では、回転電機本体内部に軸受のような潤滑を要する部分（以下、潤滑部と呼ぶ）が設けられている。また、流水などを扱う機器に連結された回転電機では、回転電機本体内部に水が浸入しないように、外部に対して内部を密封した構造のものがある。このような構造の回転電機であっても、内部の潤滑部に定期的にグリースを供給する必要があり、回転電機本体の外部に設けられ、内部の潤滑部に通じるグリース供給装置からグリースを供給している。この場合、回転電機本体外部のグリース供給装置に設けられたグリースニップルにグリース供給器具を連結し、このグリース供給器具によりグリースニップルを介してグリースを圧入する（例えば、特許文献１参照）。   In a rotating electrical machine such as a generator or an electric motor, a portion requiring lubrication (hereinafter referred to as a lubricating portion) such as a bearing is provided inside the rotating electrical machine main body. Further, some rotating electrical machines connected to equipment that handles flowing water have a structure in which the inside is sealed against the outside so that water does not enter the rotating electrical machine main body. Even in a rotating electrical machine with such a structure, it is necessary to periodically supply grease to the internal lubrication part, and grease is supplied from a grease supply device that is provided outside the rotary electrical machine body and communicates with the internal lubrication part. doing. In this case, a grease supply tool is connected to a grease nipple provided in a grease supply device outside the rotating electrical machine main body, and grease is press-fitted through the grease nipple with this grease supply tool (see, for example, Patent Document 1).

上述したグリースニップルは、周知のように所謂逆止弁構造を有するもので、グリース供給器具が連結されてグリースが圧入されるとき開動作し、グリース供給器具が取り外されるとばね力により閉塞状態に復帰動作する。したがって、グリース供給器具が取り外された通常時は、外部に対して閉塞状態であるから、埃や水滴などの浸入を防止することができる。   The grease nipple described above has a so-called check valve structure as is well known, and opens when the grease supply device is connected and grease is press-fitted. When the grease supply device is removed, the grease nipple is closed by a spring force. Return operation. Therefore, when the grease supply device is removed normally, it is in a closed state with respect to the outside, so that intrusion of dust or water droplets can be prevented.

特開２００２−１３８９４０号公報JP 2002-138940 A

上述の回転電機では通常時における埃や水滴などの侵入を防止できるが、何らかの事情で回転電機が水没した場合は、周囲の水圧によりグリースニップルが開き、グリースニップル部分から回転電機内部に周囲の水が浸入することがある。このように内部に一旦水が侵入すると、水が引いた後でもこの回転電機は使用できなくなってしまう。   In the rotating electrical machine described above, dust and water droplets can be prevented from entering in the normal state. However, if the rotating electrical machine is submerged for some reason, the grease nipple opens due to the surrounding water pressure, and the surrounding water enters the rotating electrical machine from the grease nipple part. May invade. As described above, once water enters the inside, the rotating electric machine cannot be used even after the water is drawn.

本発明が解決しようとする課題は、グリース供給装置を改良することにより、水没状態であっても内部への水の浸入を防止できる回転電機を提供することにある。   The problem to be solved by the present invention is to provide a rotating electrical machine that can prevent the ingress of water even in a submerged state by improving the grease supply device.

本発明の実施の形態に係る回転電機は、回転電機本体の外部に設けられ、前記回転電機本体内部の潤滑部にグリースを供給するグリース供給装置を備えた回転電機であって、 前記グリース供給装置は、前記回転電機本体の内外に通じ、内端部は前記潤滑部に通じるグリースパイプと、このグリースパイプの外端部に連結され、一端がこのグリースパイプに通じる貫通路を有するソケットと、このソケットに連結され、一端が前記貫通路の他端に通じる取り付け孔を有し、この取り付け孔の他端が底面に開口する凹部空間が形成された給油口取り付け座と、前記取り付け孔の他端開口に連結され、前記凹部空間内に収容されるグリースニップルと、このグリースニップルを収容した前記凹部空間を、パッキンを介して液密に閉鎖する蓋体とを備えたことを特徴とする。   A rotating electrical machine according to an embodiment of the present invention is a rotating electrical machine that includes a grease supply device that is provided outside a rotating electrical machine body and supplies grease to a lubrication portion inside the rotating electrical machine body, the grease supplying device Is connected to the inside and outside of the rotating electrical machine main body, the inner end portion is connected to the lubrication portion, a grease pipe connected to the outer end portion of the grease pipe, and one end having a through passage leading to the grease pipe, and this An oil supply port mounting seat connected to the socket and having a mounting hole with one end communicating with the other end of the through-passage, and having the other end of the mounting hole opened in the bottom surface, and the other end of the mounting hole A grease nipple connected to the opening and accommodated in the recess space, and a lid for liquid-tightly closing the recess space accommodating the grease nipple via a packing And said that there were pictures.

本発明の一実施形態に係る回転電機を示す一部破断図である。It is a partially broken figure which shows the rotary electric machine which concerns on one Embodiment of this invention. 図１で示したグリース供給装置の構成を説明する図である。It is a figure explaining the structure of the grease supply apparatus shown in FIG.

以下、本発明の実施の形態について、図面を参照して詳細に説明する。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

図１はこの実施の形態に係る回転電機を示している。回転電機本体１１は、円筒状のフレーム１２内に、円筒状の固定子鉄心１３が一体的に取り付けられ、この固定子鉄心１３の内周部分に、回転軸１４と一体の回転子鉄心１５が回転自在に設けられている。回転軸１４は、円筒状フレーム１２の両端面に設けられたベアリングブラケット１７をそれぞれ貫通し、これらベアリングブラケット１７に設けられたベアリング１８により回転自在に支持されている。回転軸１４には、内部ファン２０及び外部ファン２１が取り付けられ、回転軸１４の回転により、フレーム１２内／外に送風して冷却する。なお、外部ファン２１に対しては、これを包囲するファンカバー２２が設けられている。また、回転電機本体１１の図示右側上部には端子箱２３が設けられており、外部の図示しないケーブルとの接続に用いられる。   FIG. 1 shows a rotating electrical machine according to this embodiment. In the rotating electrical machine main body 11, a cylindrical stator core 13 is integrally attached in a cylindrical frame 12, and a rotor core 15 integrated with the rotary shaft 14 is attached to an inner peripheral portion of the stator core 13. It is provided rotatably. The rotating shaft 14 passes through bearing brackets 17 provided on both end faces of the cylindrical frame 12 and is rotatably supported by bearings 18 provided on the bearing brackets 17. An internal fan 20 and an external fan 21 are attached to the rotating shaft 14, and the air is cooled by blowing into and out of the frame 12 by the rotation of the rotating shaft 14. The external fan 21 is provided with a fan cover 22 that surrounds the external fan 21. A terminal box 23 is provided on the upper right side of the rotating electrical machine main body 11 in the figure, and is used for connection to an external cable (not shown).

上述したベアリング１８などの潤滑部に対しては、回転電機本体１１の外部にグリース供給装置２５を設け、回転電機本体１１内部の潤滑部であるベアリング１８にグリースを供給する。図１では、左右のベアリング１８に対応して、グリース供給装置２５も左右２個設けている。なお、図示右側のグリース供給装置２５は、その上方に端子箱２３が位置するため、９０°図示手前側に折り曲げられている。   For the lubricating part such as the bearing 18 described above, a grease supply device 25 is provided outside the rotating electrical machine main body 11 to supply grease to the bearing 18 that is a lubricating part inside the rotating electrical machine main body 11. In FIG. 1, two grease supply devices 25 are provided corresponding to the left and right bearings 18. Note that the grease supply device 25 on the right side of the drawing is bent 90 ° toward the front side of the drawing because the terminal box 23 is positioned above the grease supply device 25.

グリース供給装置２５は、図２で示すようにグリースパイプ２６、ソケット２７、給油口取り付け座２８、グリースニップル２９、及びパッキン３０を有する蓋体３１により構成される。なお、このグリース供給装置２５に対して、回転電機本体１１の下部外周には、図１で示すように、ベアリング１８からのグリースを排出するためのグリース排出口３２が設けられている。このグリース排出口も、常時はパッキン付き蓋体により閉鎖されている。   As shown in FIG. 2, the grease supply device 25 includes a lid 31 having a grease pipe 26, a socket 27, an oil supply port mounting seat 28, a grease nipple 29, and a packing 30. In addition, as shown in FIG. 1, a grease discharge port 32 for discharging grease from the bearing 18 is provided on the lower outer periphery of the rotating electrical machine body 11 with respect to the grease supply device 25. This grease discharge port is also normally closed by a lid with packing.

グリースパイプ２６は、回転電機本体１１の内外に通じるようにベアリングブラケット１７に設けられ、その内端部（図示下端部）は、潤滑部であるベアリング１８へ、給油路２６ａを介して通じている。このグリースパイプ２６の外端部（図示上端部）には、ソケット２７が、螺合構成により連結されている。このソケット２７は、一端（図示下端）がこのグリースパイプ２６に通じる貫通路２７ａを有する。   The grease pipe 26 is provided in the bearing bracket 17 so as to communicate with the inside and outside of the rotating electrical machine main body 11, and the inner end portion (the lower end portion in the drawing) communicates with the bearing 18 which is a lubricating portion via an oil supply passage 26a. . A socket 27 is connected to an outer end portion (upper end portion in the drawing) of the grease pipe 26 by a screwing configuration. The socket 27 has a through passage 27 a with one end (the lower end in the figure) communicating with the grease pipe 26.

給油口取り付け座２８は、ソケット２７に形成された貫通路２７ａの他端（図示上端）に螺合構成により連結されている。また、この給油口取り付け座２８は、上述した貫通路２７ａの他端部に通じる取り付け孔２８ａを有する。さらに、この給油口取り付け座２８には、上述した取り付け孔２８ａが開口する底面を有する凹部空間２８ｂが形成されている。この給油口取り付け座２８の取り付け孔２８ａにはグリースニップル２９が連結され、上述した凹部空間２８ｂ内に収容される。蓋体３１は、グリースニップル２９を収容した凹部空間２８ｂの開放面（図示上面）にパッキン３０を介してねじ止めされ、グリースニップル２８を収容した凹部空間３１ｂを液密に閉鎖する。   The fuel filler mounting seat 28 is coupled to the other end (upper end in the drawing) of the through passage 27 a formed in the socket 27 by a screwing configuration. The fuel filler mounting seat 28 has a mounting hole 28a that communicates with the other end of the through-passage 27a. Further, the oil supply port mounting seat 28 is formed with a recessed space 28b having a bottom surface in which the mounting hole 28a described above is opened. A grease nipple 29 is connected to the mounting hole 28a of the fuel filler mounting seat 28, and is accommodated in the above-described recess space 28b. The lid 31 is screwed to the open surface (the upper surface in the drawing) of the recessed space 28b that accommodates the grease nipple 29 via the packing 30, and closes the recessed space 31b that accommodates the grease nipple 28 in a liquid-tight manner.

上記構成において、グリース供給装置２５は、通常時、その給油口取り付け座２８の開放面がパッキン３０を介して蓋体３１により閉鎖されており、グリース供給装置２５から、回転電機本体１１の内部に埃や水分が侵入することはない。この状態で、回転電機の運転が継続し、グリース供給時期になった場合、グリース供給装置２５の蓋体３１を取り外し、凹部空間２８ｂ内のグリースニップル２９に図示しないグリース供給器具を連結し、グリースを圧入する。   In the above-described configuration, the grease supply device 25 normally has an open surface of the oil supply port mounting seat 28 closed by the lid 31 via the packing 30, and the grease supply device 25 enters the rotary electric machine main body 11 from the grease supply device 25. Dust and moisture do not enter. In this state, when the operation of the rotating electrical machine is continued and the grease supply timing comes, the cover 31 of the grease supply device 25 is removed, and a grease supply device (not shown) is connected to the grease nipple 29 in the recess space 28b. Press fit.

この操作により、グリースニップル２９が押し開かれ、グリースは回転電機本体１１内の潤滑部であるベアリング１８に供給される。このとき、グリース排出口３２は蓋体を取り外して開いておくので、ベアリング１８内の古いグリースは押し出され、グリース排出口３２から回転電機本体１１外に排出される。   By this operation, the grease nipple 29 is pushed open, and the grease is supplied to the bearing 18 which is a lubricating part in the rotating electrical machine main body 11. At this time, since the grease discharge port 32 is opened by removing the lid, old grease in the bearing 18 is pushed out and discharged out of the rotating electrical machine main body 11 from the grease discharge port 32.

グリースの供給作業が完了したならば、グリースニップル２９からグリース供給器具を取り外し、グリース供給装置２５の給油口取り付け座２８の開放面を、パッキン３０を介して蓋体３１により閉鎖すると共に、グリース排出口３２も閉鎖し、通常の運転状態に戻す。   When the grease supply operation is completed, the grease supply device is removed from the grease nipple 29, the open surface of the oil supply port mounting seat 28 of the grease supply device 25 is closed by the lid 31 via the packing 30, and the grease discharge The outlet 32 is also closed and returned to normal operating conditions.

この通常の運転状態において、何らかの事情、例えば大雨により回転電機が設置された建屋内に雨水が侵入したり、津波などにより海水が浸入して、回転電機本体１１が水没することが考えられる。このような場合、従来装置では、周囲の水圧によりグリースニップル２９部分から回転電機本体１１内に浸水する可能性があった。   In this normal operation state, it is conceivable that for some reason, for example, rainwater enters the building where the rotating electrical machine is installed due to heavy rain, seawater enters due to a tsunami, etc., and the rotating electrical machine main body 11 is submerged. In such a case, in the conventional apparatus, there is a possibility that the grease nipple 29 may be submerged into the rotating electrical machine main body 11 due to the surrounding water pressure.

しかし、この実施の形態による回転電機は、回転電機本体１１への浸水の原因であったグリースニップル２９を給油口取り付け座２８の凹部空間２８ｂ内に収容し、凹部空間２８ｂの開放面をパッキン３０を介して蓋体３１により液密に閉鎖しているので、グリースニップル２９の周囲は、水没した回転電機本体１１周囲の水から隔離された状態となる。したがって、従来のように、グリースニップル２９部分から回転電機本体１１内に浸水することはなく、水没しても、水が引いた後は、再び回転電機を運転することが可能となった。   However, in the rotating electrical machine according to this embodiment, the grease nipple 29 that has been the cause of the flooding of the rotating electrical machine main body 11 is accommodated in the recessed space 28b of the filler mounting seat 28, and the open surface of the recessed space 28b is sealed with the packing 30. Therefore, the periphery of the grease nipple 29 is isolated from the water around the rotating electrical machine main body 11 that has been submerged. Therefore, unlike the prior art, the rotary nipple 29 is not submerged into the rotary electric machine main body 11, and even if submerged, the rotary electric machine can be operated again after the water is drawn.

本発明の実施形態を説明したが、この実施形態は例として提示したものであり、発明の範囲を限定することは意図していない。この新規な実施形態は、その他のさまざまな形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。この実施形態やその変形は、発明の範囲や要旨に含まれると共に、特許請求の範囲に記載された発明とその均等の範囲に含まれる。   Although an embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. The novel embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

１１…回転電機本体
１８…ベアリング（潤滑部）
２５…グリース供給装置
２６…グリースパイプ
２６ａ…給油路
２７…ソケット
２７ａ…貫通路
２８…給油口取り付け座
２８ａ…取り付け孔
２８ｂ…凹部空間
２９…グリースニップル
３０…パッキン
３１…蓋体 11 ... Rotating electrical machine body 18 ... Bearing (lubricating part)
DESCRIPTION OF SYMBOLS 25 ... Grease supply apparatus 26 ... Grease pipe 26a ... Oil supply path 27 ... Socket 27a ... Through passage 28 ... Oil supply port attachment seat 28a ... Installation hole 28b ... Recessed space 29 ... Grease nipple 30 ... Packing 31 ... Cover

Claims (1)

回転電機本体の外部に設けられ、前記回転電機本体内部の潤滑部にグリースを供給するグリース供給装置を備えた回転電機であって、
前記グリース供給装置は、
前記回転電機本体の内外に通じ、内端部は前記潤滑部に通じるグリースパイプと、
このグリースパイプの外端部に連結され、一端がこのグリースパイプに通じる貫通路を有するソケットと、
このソケットに連結され、一端が前記貫通路の他端に通じる取り付け孔を有し、この取り付け孔の他端が底面に開口する凹部空間が形成された給油口取り付け座と、
前記取り付け孔の他端開口に連結され、前記凹部空間内に収容されるグリースニップルと、
このグリースニップルを収容した前記凹部空間を、パッキンを介して液密に閉鎖する蓋体と、
を備えたことを特徴とする回転電機。 A rotating electrical machine provided with a grease supply device that is provided outside the rotating electrical machine body and supplies grease to the lubrication part inside the rotating electrical machine body,
The grease supply device includes:
A grease pipe that leads to the inside and outside of the rotating electrical machine body, and an inner end portion leads to the lubrication part;
A socket connected to the outer end of the grease pipe, and having a through-passage with one end leading to the grease pipe;
An oil supply port mounting seat connected to the socket and having an attachment hole with one end leading to the other end of the through passage, and having a recess space where the other end of the attachment hole opens on the bottom surface;
A grease nipple connected to the other end opening of the mounting hole and accommodated in the recessed space;
A lid that liquid-tightly closes the recessed space containing the grease nipple via a packing;
A rotating electrical machine comprising:
JP2014094579A 2014-05-01 2014-05-01 Rotating electric machine Active JP6129111B2 (en)

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JP2014094579A JP6129111B2 (en) 2014-05-01 2014-05-01 Rotating electric machine
CN201510214203.5A CN105042310B (en) 2014-05-01 2015-04-29 Electric rotating machine

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JP6129111B2 JP6129111B2 (en) 2017-05-17

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018014786A (en) * 2016-07-19 2018-01-25 ファナック株式会社 Electric motor with power generation and power supply function at coil end part
CN111336542A (en) * 2019-12-12 2020-06-26 中国人民解放军空军工程大学 Multi-channel igniter with variable arc length
JP2020188553A (en) * 2019-05-13 2020-11-19 東芝三菱電機産業システム株式会社 Bearing structure and rotary electric machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109160479A (en) * 2018-10-29 2019-01-08 上海应用技术大学 A kind of automatic sensing refueling device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5751895U (en) * 1980-09-11 1982-03-25
JPH0923607A (en) * 1995-07-06 1997-01-21 Toshiba Corp Bearing
JP2008095775A (en) * 2006-10-10 2008-04-24 Shin Caterpillar Mitsubishi Ltd Grease nipple protecting device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391952A (en) * 1963-11-04 1968-07-09 Gen Motors Corp Lubricant purging sealed ball joint assembly
CN2083682U (en) * 1990-12-23 1991-08-28 浙江省苍南仪表厂 Pressure oil nipple
CN2310375Y (en) * 1997-09-15 1999-03-10 刘之凡 Oil-filling hole sealing device for electric power capacitor
JP2002138940A (en) * 2000-11-01 2002-05-17 Kubota Corp Inline type pump-reversing hydraulic turbine
CN100536283C (en) * 2003-08-25 2009-09-02 阿斯莫株式会社 Casing structure and motor
CN201462358U (en) * 2009-07-08 2010-05-12 南阳防爆集团股份有限公司 Low-voltage motor bearing oil filling and discharging device
CN203423560U (en) * 2013-07-25 2014-02-05 盘锦辽河胜利电泵有限公司 Duplex joint for oil-submerged electric pump motor protector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5751895U (en) * 1980-09-11 1982-03-25
JPH0923607A (en) * 1995-07-06 1997-01-21 Toshiba Corp Bearing
JP2008095775A (en) * 2006-10-10 2008-04-24 Shin Caterpillar Mitsubishi Ltd Grease nipple protecting device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018014786A (en) * 2016-07-19 2018-01-25 ファナック株式会社 Electric motor with power generation and power supply function at coil end part
JP2020188553A (en) * 2019-05-13 2020-11-19 東芝三菱電機産業システム株式会社 Bearing structure and rotary electric machine
JP7273612B2 (en) 2019-05-13 2023-05-15 東芝三菱電機産業システム株式会社 Bearing structure and rotating electric machine
CN111336542A (en) * 2019-12-12 2020-06-26 中国人民解放军空军工程大学 Multi-channel igniter with variable arc length

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