JP5769659B2

JP5769659B2 - Rotating electric machine

Info

Publication number: JP5769659B2
Application number: JP2012089805A
Authority: JP
Inventors: 雅浩近藤; 前田　英昭; 英昭前田
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2012-04-11
Filing date: 2012-04-11
Publication date: 2015-08-26
Anticipated expiration: 2032-04-11
Also published as: JP2013219960A

Description

この発明は、例えばケーシング内に固定子および回転子が収容されたタービン発電機等の回転電機に関するものである。 The present invention relates to a rotating electrical machine such as a turbine generator in which a stator and a rotor are accommodated in a casing, for example.

ケーシング内に固定子および回転子が収容された回転電機としては、図２１および図２２に示すものがある。 As a rotating electrical machine in which a stator and a rotor are accommodated in a casing, there are those shown in FIGS.

図２１および図２２に示されているように、ケーシング１内に固定子２、回転子６が配設され、固定子２は、固定子鉄心４とコイルエンド５ａが固定子鉄心４の端部外方に伸長して配置される固定子コイル５とにより構成され、固定子２の内周側に空隙を介して回転可能に支持された回転子６が配置され、この回転子６の回転軸７の軸端部で軸受１０により回転自在に支持されている。 As shown in FIGS. 21 and 22, the stator 2 and the rotor 6 are disposed in the casing 1, and the stator 2 has a stator core 4 and a coil end 5 a at the end of the stator core 4. The rotor 6 is configured by a stator coil 5 that extends outward, and is rotatably supported on the inner peripheral side of the stator 2 via a gap. 7 is rotatably supported by the bearing 10 at the shaft end.

ところで、固定子２の固定子鉄心４は周方向に複数個配置されたコア締結ボルトからなる第１の締結体１９（以下、コア締結ボルトと称す）およびスルーボルトからなる第２の締結体２１（以下、スルーボルトと称す）により強固に締結されている。すなわち、固定子鉄心４の外周側はクランパ１８を介して鋼材からなるコア締結ボルト１９とナット２０により強固に締結され、固定子鉄心４の内周側はクランパ１８を介して鋼材からなるスルーボルト２１とナット２２により強固に締結されている。 By the way, the stator core 4 of the stator 2 includes a first fastening body 19 (hereinafter referred to as a core fastening bolt) made up of a plurality of core fastening bolts arranged in the circumferential direction and a second fastening body 21 made up of a through bolt. (Hereinafter referred to as a through bolt). That is, the outer peripheral side of the stator core 4 is firmly fastened by a core fastening bolt 19 made of steel and a nut 20 via a clamper 18, and the inner peripheral side of the stator core 4 is made of a steel bolt via a clamper 18. 21 and nut 22 are firmly fastened.

特開２００２−１０５３８号公報JP 2002-10538 A

上述した従来の回転電機は、固定子鉄心４の外周側はクランパ１８を介して鋼材からなるコア締結ボルト１９とナット２０により強固に締結し、固定子鉄心４の内周側はクランパ１８を介して鋼材からなるスルーボルト２１とナット２２により強固に締結するようにしているが、回転電機の組み立て後に、スルーボルト２１の交換が必要になった場合、図２２に示すように、スルーボルト２１の引き抜き時に、スルーボルト２１が固定子コイル５のコイルエンド５ａと干渉して引き抜くことができないという問題点があった。 In the conventional rotating electrical machine described above, the outer peripheral side of the stator core 4 is firmly fastened by a core fastening bolt 19 made of steel and a nut 20 via a clamper 18, and the inner peripheral side of the stator core 4 is connected via a clamper 18. However, when the through bolt 21 needs to be replaced after the rotary electric machine is assembled, as shown in FIG. At the time of drawing, there was a problem that the through bolt 21 could not be pulled out due to interference with the coil end 5a of the stator coil 5.

したがって、スルーボルト２１の交換には、固定子鉄心４から固定子コイル５を分解して取り出す必要があった。この固定子コイル５を分解して取り出すのに多大の労力と時間を要するとともに、固定子コイル５の絶縁修復も行った上で再度固定子コイル５を固定子鉄心４に装着する必要があり、これら絶縁修復費用、絶縁修復作業および固定子コイル５の装着作業に多大の労力と時間を要するという問題点があった。 Therefore, to replace the through bolt 21, it is necessary to disassemble and remove the stator coil 5 from the stator core 4. It takes a lot of labor and time to disassemble and take out the stator coil 5, and it is necessary to mount the stator coil 5 on the stator core 4 again after performing insulation repair of the stator coil 5, There is a problem that much labor and time are required for these insulation repair costs, insulation repair work, and stator coil 5 mounting work.

この発明は、上記のような課題を解決するためになされたものであり、その目的は、固定子コイルを分解することなく固定子鉄心の締結材の交換を行うことができる回転電機を提供するものである。 The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a rotating electrical machine that can replace the fastening material of the stator core without disassembling the stator coil. Is.

この発明に係わる回転電機は、固定子鉄心と前記固定子鉄心に装着されコイルエンドが前記固定子鉄心の両端側に延在する固定子コイルとから構成される固定子と、前記固定子の内周側に配設された回転子と、前記固定子鉄心の外周側に配設され前記固定子鉄心を締結する第１の締結体と、前記固定子鉄心の内周側に配設され前記固定子鉄心を締結する第２の締結体とを備えた回転電機において、前記第２の締結体は、前記固定子鉄心の軸方向に３個以上に分割された締結片で連結され、前記第２の締結体を前記固定子鉄心から引き抜くとき、前記締結片を前記固定子コイルのコイルエンドに干渉しないように前記固定子鉄心から引き抜くものである。 A rotating electrical machine according to the present invention includes a stator that includes a stator core and a stator coil that is attached to the stator core and has coil ends that extend to both ends of the stator core. A rotor disposed on a circumferential side; a first fastening body disposed on an outer circumferential side of the stator core for fastening the stator core; and a stationary body disposed on an inner circumferential side of the stator core. In the rotating electrical machine including the second fastening body for fastening the child core, the second fastening body is connected by a fastening piece divided into three or more in the axial direction of the stator core, and the second When the fastening body is pulled out from the stator core, the fastening piece is pulled out from the stator core so as not to interfere with the coil end of the stator coil .

また、この発明に係わる回転電機は、固定子鉄心と前記固定子鉄心に装着されコイルエンドが前記固定子鉄心の両端側に延在する固定子コイルとから構成される固定子と、前記固定子の内周側に配設された回転子と、前記固定子鉄心の外周側に配設され前記固定子鉄心を締結する第１の締結体と、前記固定子鉄心の内周側に配設され前記固定子鉄心を締結する第２の締結体とを備えた回転電機において、前記第２の締結体は、可撓性部材により構成され、前記第２の締結体を前記固定子鉄心から引き抜くとき、前記可撓性部材の可撓性により前記第２の締結体を前記固定子コイルのコイルエンドに干渉しないように前記固定子鉄心から引き抜くものである。 The rotating electrical machine according to the present invention includes a stator composed of a stator core and a stator coil mounted on the stator core and having coil ends extending to both ends of the stator core, and the stator. A rotor disposed on the inner peripheral side of the stator, a first fastening body disposed on the outer peripheral side of the stator core and fastening the stator core, and an inner peripheral side of the stator core. In the rotating electrical machine including the second fastening body for fastening the stator core, the second fastening body is formed of a flexible member, and the second fastening body is pulled out from the stator core. The second fastening body is pulled out from the stator core so as not to interfere with the coil end of the stator coil due to the flexibility of the flexible member .

この発明に係わる回転電機によれば、固定子コイルを分解することなく固定子鉄心の締結材の交換を行うことができる回転電機を得ることができる。 According to the rotating electrical machine according to the present invention, it is possible to obtain a rotating electrical machine capable of replacing the fastening material of the stator core without disassembling the stator coil.

この発明の実施の形態１に係わる回転電機を示す断面図である。It is sectional drawing which shows the rotary electric machine concerning Embodiment 1 of this invention. この発明の実施の形態１に係わる回転電機を示す要部断面図である。It is principal part sectional drawing which shows the rotary electric machine concerning Embodiment 1 of this invention. この発明の実施の形態１に係わる回転電機における第２の締結体を示す平面図である。It is a top view which shows the 2nd fastening body in the rotary electric machine concerning Embodiment 1 of this invention. この発明の実施の形態1に係わる回転電機における第２の締結体を示す断面図である。It is sectional drawing which shows the 2nd fastening body in the rotary electric machine concerning Embodiment 1 of this invention. この発明の実施の形態１に係わる回転電機における第２の締結体を示す図３Ａ−Ａ線の断面図である。It is sectional drawing of FIG. 3A-A which shows the 2nd fastening body in the rotary electric machine concerning Embodiment 1 of this invention. この発明の実施の形態１に係わる回転電機を示す要部断面図である。It is principal part sectional drawing which shows the rotary electric machine concerning Embodiment 1 of this invention. この発明の実施の形態１に係わる回転電機における第２の締結体を示す平面図である。It is a top view which shows the 2nd fastening body in the rotary electric machine concerning Embodiment 1 of this invention. この発明の実施の形態１に係わる回転電機における第２の締結体を示す側面図である。It is a side view which shows the 2nd fastening body in the rotary electric machine concerning Embodiment 1 of this invention.

この発明の実施の形態２に係わる回転電機を示す要部断面図である。It is principal part sectional drawing which shows the rotary electric machine concerning Embodiment 2 of this invention. この発明の実施の形態２に係わる回転電機における第２の締結体を示す平面図である。It is a top view which shows the 2nd fastening body in the rotary electric machine concerning Embodiment 2 of this invention. この発明の実施の形態２に係わる回転電機における第２の締結体を示す側面図である。It is a side view which shows the 2nd fastening body in the rotary electric machine concerning Embodiment 2 of this invention. この発明の実施の形態２に係わる回転電機を示す断面図である。It is sectional drawing which shows the rotary electric machine concerning Embodiment 2 of this invention. この発明の実施の形態２に係わる回転電機における第２の締結体を示す正面図である。It is a front view which shows the 2nd fastening body in the rotary electric machine concerning Embodiment 2 of this invention. この発明の実施の形態２に係わる回転電機における第２の締結体を示す側面図である。It is a side view which shows the 2nd fastening body in the rotary electric machine concerning Embodiment 2 of this invention. この発明の実施の形態３に係わる回転電機を示す要部断面図である。It is principal part sectional drawing which shows the rotary electric machine concerning Embodiment 3 of this invention. この発明の実施の形態３に係わる回転電機を示す要部断面図である。It is principal part sectional drawing which shows the rotary electric machine concerning Embodiment 3 of this invention. この発明の実施の形態３に係わる回転電機における第２の締結体を示す平面図である。It is a top view which shows the 2nd fastening body in the rotary electric machine concerning Embodiment 3 of this invention.

この発明の実施の形態４に係わる回転電機を示す要部断面図である。It is principal part sectional drawing which shows the rotary electric machine concerning Embodiment 4 of this invention. この発明の実施の形態４に係わる回転電機における第２の締結体を示す要部平面図である。It is a principal part top view which shows the 2nd fastening body in the rotary electric machine concerning Embodiment 4 of this invention. この発明の実施の形態５に係わる回転電機における第２の締結体を示す断面図である。It is sectional drawing which shows the 2nd fastening body in the rotary electric machine concerning Embodiment 5 of this invention. 従来の回転電機を示す断面図である。It is sectional drawing which shows the conventional rotary electric machine. 従来の回転電機を示す要部断面図である。It is principal part sectional drawing which shows the conventional rotary electric machine.

実施の形態１．
以下、この発明の実施の形態１を図１〜図８に基づいて説明するが、各図において、同一、または相当部材、部位については同一符号を付して説明する。図１はこの発明の実施の形態１に係わる回転電機を示す断面図である。図２はこの発明の実施の形態１に係わる回転電機を示す要部断面図である。図３はこの発明の実施の形態１に係わる回転電機における第２の締結体を示す平面図である。図４はこの発明の実施の形態1に係わる回転電機における第２の締結体を示す断面図である。図５はこの発明の実施の形態１に係わる回転電機における第２の締結体を示す図３Ａ−Ａ線の断面図である。図６はこの発明の実施の形態１に係わる回転電機を示す要部断面図である。図７はこの発明の実施の形態１に係わる回転電機における第２の締結体を示す平面図である。図８はこの発明の実施の形態１に係わる回転電機における第２の締結体を示す側面図である。 Embodiment 1 FIG.
Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 8. In each figure, the same or equivalent members and parts will be described with the same reference numerals. 1 is a cross-sectional view showing a rotary electric machine according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of the main part showing the rotary electric machine according to Embodiment 1 of the present invention. FIG. 3 is a plan view showing a second fastening body in the rotary electric machine according to Embodiment 1 of the present invention. FIG. 4 is a cross-sectional view showing a second fastening body in the rotary electric machine according to Embodiment 1 of the present invention. 5 is a cross-sectional view taken along line AA of FIG. 3 showing a second fastening body in the rotary electric machine according to Embodiment 1 of the present invention. FIG. 6 is a cross-sectional view of the main part showing the rotary electric machine according to Embodiment 1 of the present invention. FIG. 7 is a plan view showing a second fastening body in the rotary electric machine according to Embodiment 1 of the present invention. FIG. 8 is a side view showing a second fastening body in the rotary electric machine according to Embodiment 1 of the present invention.

これら各図において、１は回転電機のケーシング、２はケーシング１内に配設された固定子であり、固定子２は、固定子鉄心４とコイルエンド５ａが固定子鉄心４の端部外方に伸長して配置される固定子コイル５とからなる構成されている。６は固定子２の内周側に空隙を介して配置され、回転軸７、回転軸７に装着され回転子磁極を形成する回転子鉄心８、回転子鉄心８を励磁する回転子コイル９からなり、回転軸７の両端部が軸受１０により回転自在に支持された回転子である。 In each of these drawings, 1 is a casing of a rotating electrical machine, 2 is a stator disposed in the casing 1, and the stator 2 has a stator core 4 and a coil end 5 a outward from the end of the stator core 4. It is comprised from the stator coil 5 extended | stretched by this. 6 is arranged on the inner peripheral side of the stator 2 through a gap, and includes a rotating shaft 7, a rotor core 8 that is attached to the rotating shaft 7 to form a rotor magnetic pole, and a rotor coil 9 that excites the rotor core 8. Thus, both ends of the rotating shaft 7 are rotors supported rotatably by bearings 10.

１７は回転子コイル９のコイルエンド９ａを保持するリテイニングリングである。１８は固定子鉄心４の両端側に配置されたクランパである。１９は固定子２の固定子鉄心４の外周側に配設され、周方向に複数個配置されたコア締結ボルトからなる第１の締結体１９（以下、コア締結ボルトと称す）であり、コア締結ボルト１９は鋼材からなり、クランパ１８を介してコア締結ボルト１９とナット２０により固定子鉄心４を強固に締結する。 Reference numeral 17 denotes a retaining ring that holds the coil end 9 a of the rotor coil 9. Reference numeral 18 denotes a clamper disposed on both ends of the stator core 4. Reference numeral 19 denotes a first fastening body 19 (hereinafter referred to as a core fastening bolt) that is disposed on the outer peripheral side of the stator core 4 of the stator 2 and includes a plurality of core fastening bolts arranged in the circumferential direction. The fastening bolt 19 is made of a steel material, and the stator core 4 is firmly fastened by the core fastening bolt 19 and the nut 20 via the clamper 18.

２３は固定子鉄心４の内周側に配設され、固定子コイル５のコイルエンド５ａに干渉しないように複数に分割して配設された第２の締結体であり、図は一例として、複数に分割された第２の締結体２３はねじ込み式に構成されている。なお、第２の締結体２３の両端側は雄ねじが形成され、その雄ねじにナット２４を螺入し、クランパ１８を介して第２の締結体２３とナット２４により固定子鉄心４を強固に締結する。 Reference numeral 23 denotes a second fastening body which is disposed on the inner peripheral side of the stator core 4 and is divided into a plurality of parts so as not to interfere with the coil end 5a of the stator coil 5, and FIG. The 2nd fastening body 23 divided | segmented into plurality is comprised by the screwing type. A male screw is formed on both ends of the second fastening body 23, and a nut 24 is screwed into the male screw, and the stator core 4 is firmly fastened by the second fastening body 23 and the nut 24 via the clamper 18. To do.

すなわち、第２の締結体２３は、固定子コイル５のコイルエンド５ａに干渉しないように複数の締結片２３１に分割して配設している。締結片２３１は図３に示すように一方側に雄ねじ２３１ａが形成され、他方側に雌ねじ２３１ｂが形成されている。また、締結片２３１には締結片２３１を他の締結片２３１にねじ込み締め付けて固定するためのスパナの掛かり部２３１ｃが形成されている。 That is, the second fastening body 23 is divided into a plurality of fastening pieces 231 so as not to interfere with the coil end 5 a of the stator coil 5. As shown in FIG. 3, the fastening piece 231 has a male screw 231a on one side and a female screw 231b on the other side. The fastening piece 231 is formed with a spanner hooking portion 231c for screwing and fastening the fastening piece 231 to the other fastening piece 231.

さらに、図６に示すように、固定子鉄心４の紙面上右端部側に位置する最端部側の締結片２３１には図７に示すように一方側に雄ねじ２３１ａが形成され、他方側に例えば六角状の多角加工体２３１ｄが形成されている。また、その締結片２３１の他方側にはナット２４の取り付けねじ部２３１ｅが形成されている。なお、図示はしないが、固定子鉄心４の紙面上左端部側に位置することになる最初１個目の締結片２３１の一方側にも固定子鉄心４の紙面上右端部側に位置する最端部側の締結片２３１と同様に例えば六角状の多角加工体２３１ｄおよびナット２４の取り付けねじ部２３１ｅが形成されている。 Further, as shown in FIG. 6, the outermost end side fastening piece 231 located on the right end portion on the paper surface of the stator core 4 is formed with a male screw 231a on one side and on the other side as shown in FIG. For example, a hexagonal polygonal processed body 231d is formed. An attachment screw portion 231e of the nut 24 is formed on the other side of the fastening piece 231. Although not shown, the first fastening piece 231 that is located on the left end side of the stator core 4 on the paper surface is also located on the right side of the stator core 4 on the right end side of the stator core 4. For example, a hexagonal polygonal processed body 231d and a mounting screw portion 231e for the nut 24 are formed in the same manner as the fastening piece 231 on the end side.

次に第２の締結体２３の組み立ては、まず固定子鉄心４の紙面上左端部側に位置することになる最初１個目の締結片２３１の雌ねじ２３１ｂに２個目の締結片２３１の雄ねじ２３１ａをねじ込み、スパナの掛かり部２３１ｃにスパナを掛けて強固に締結する。２個目の締結片２３１の雌ねじ２３１ｂに３個目の締結片２３１の雄ねじ２３１ａをねじ込み、スパナの掛かり部２３１ｃにスパナを掛けて強固に締結する。順次同じように締結片２３１をねじ込んでいく。そして、図６に示すように、固定子鉄心４の紙面上右端部側に位置する最端部側の締結片２３１の雄ねじ２３１ａを１つ前の締結片２３１の雌ねじ２３１ｂにねじ込み、例えば六角状の多角加工体２３１ｄにスパナを掛けて強固に締結し、第２の締結体２３を完成させる。 Next, the assembly of the second fastening body 23 is performed by firstly connecting the female screw 231b of the first fastening piece 231 to the male screw 231b of the first fastening piece 231 which is positioned on the left end of the stator core 4 on the paper surface. 231a is screwed, and the spanner 231c is spanned with a spanner to firmly fasten. The male screw 231a of the third fastening piece 231 is screwed into the female screw 231b of the second fastening piece 231, and the spanner hook portion 231c is hung with a spanner to be firmly fastened. The fastening pieces 231 are sequentially screwed in the same manner. Then, as shown in FIG. 6, the male screw 231a of the fastening piece 231 on the outermost end side located on the right end side on the paper surface of the stator core 4 is screwed into the female screw 231b of the previous fastening piece 231, for example, a hexagonal shape. The second processed body 23 is completed by applying a spanner to the polygonal processed body 231d and fastening it firmly.

第２の締結体２３の固定子鉄心４の紙面上左端部側に位置する締結片２３１の取り付けねじ部２３１ｅ（図示せず）にナット（図示せず）をねじ込むとともに固定子鉄心４の紙面上右端部側に位置する最端部側の締結片２３１の取り付けねじ部２３１ｅにナット２４をねじ込み、両ナットを第２の締結体２３に強固に締結することにより、固定子鉄心４を強固に締結する。 On the paper surface of the stator core 4, a nut (not shown) is screwed into a mounting screw portion 231 e (not shown) of the fastening piece 231 located on the left end side on the paper surface of the stator core 4 of the second fastening body 23. The stator core 4 is firmly fastened by screwing the nut 24 into the mounting screw portion 231e of the fastening piece 231 on the extreme end side located on the right end side and firmly fastening both nuts to the second fastening body 23. To do.

以上のようにして第２の締結体２３を固定子鉄心４に組み付けた後に固定子コイル５を固定子鉄心４に装着されて回転電機が組み立てられる。 After assembling the second fastening body 23 to the stator core 4 as described above, the stator coil 5 is mounted on the stator core 4 to assemble the rotating electrical machine.

ところで、回転電機が組み立てられた後に、第２の締結体２３の交換が必要になった場合、上述した従来の回転電機においては、スルーボルトと称する第２の締結体２１は鋼材で構成されており、第２の締結体２１を固定子鉄心４から引き抜こうとする固定子コイル５のコイルエンド５ａに干渉してしまい第２の締結体２１を固定子鉄心４から引き抜くことができないので、固定子コイル５を固定子鉄心４から分解して取り出してから第２の締結体２１を固定子鉄心４から引き抜くしかなかった。 By the way, when the second fastening body 23 needs to be replaced after the rotating electrical machine is assembled, in the conventional rotating electrical machine described above, the second fastening body 21 called a through bolt is made of a steel material. Since the second fastening body 21 interferes with the coil end 5a of the stator coil 5 to be pulled out from the stator core 4 and the second fastening body 21 cannot be pulled out from the stator core 4, the stator After the coil 5 was disassembled and taken out from the stator core 4, the second fastening body 21 had to be pulled out from the stator core 4.

この実施の形態１によれば、第２の締結体２３は複数の締結片２３１に分割されており、第２の締結体２３を引き抜く場合、固定子鉄心４の紙面上右端部側に位置する最端部側の締結片２３１の取り付けねじ部２３１ｅからナット２４を取り外すとともに固定子鉄心４の紙面上左端部側に位置する締結片２３の取り付けねじ部２３１ｅ（図示せず）からナットを取り外す。 According to the first embodiment, the second fastening body 23 is divided into a plurality of fastening pieces 231, and when the second fastening body 23 is pulled out, the second fastening body 23 is positioned on the right end portion side of the stator core 4 on the paper surface. The nut 24 is removed from the attachment screw portion 231e of the fastening piece 231 on the extreme end side, and the nut is removed from the attachment screw portion 231e (not shown) of the fastening piece 23 located on the left end side of the stator core 4 on the paper surface.

両ナットを取り外した後に、固定子鉄心４の紙面上右端部側に位置する最端部側の締結片２３１をクランパ１８より外方向の位置まで引き抜き、六角状の多角加工体２３１ｄにスパナを掛けて締結状態を解除して最端部側の締結片２３１を取り出す。最端部側の締結片２３１を取り出した後に、次の締結片２３１をクランパ１８より外方向の位置まで引き抜き、スパナの掛かり部２３１ｃにスパナを掛けて締結状態を解除してその締結片２３１を取り出す。以下順次複数の締結片２３１を同様の動作により取り出す。 After removing both nuts, the fastening piece 231 located on the rightmost edge side of the stator core 4 on the right end side in the drawing is pulled out from the clamper 18 to the outer position, and a hexagonal polygonal workpiece 231d is hung with a spanner. Then, the fastening state is released, and the fastening piece 231 on the endmost side is taken out. After taking out the fastening piece 231 on the endmost side, the next fastening piece 231 is pulled out from the clamper 18 to a position outward, and the spanner is put on the spanner hooking portion 231c to release the fastening state. Take out. Thereafter, a plurality of fastening pieces 231 are sequentially taken out by the same operation.

このように、複数の締結片２３１に分割された第２の締結体２３を個々の締結片２３１ごとに引き抜いて取り出すことができるので、上述した回転電機のように、固定子コイル５を固定子鉄心４から分解して取り出すことなく引き抜くことができ、固定子コイル５の分解作業を皆無とすることができるとともに固定子コイル５の絶縁修復も不要で固定子コイル５の再装着作業も皆無となり、簡易な交換作業となり交換作業の大幅な短縮化および低コストを図ることができる回転電機を得ることができる。 Thus, since the 2nd fastening body 23 divided | segmented into the some fastening piece 231 can be extracted and taken out for every fastening piece 231, the stator coil 5 is made into a stator like the rotary electric machine mentioned above. It can be pulled out from the iron core 4 without being disassembled, and the disassembly work of the stator coil 5 can be eliminated. In addition, the stator coil 5 is not required to be repaired and the stator coil 5 is not remounted. Thus, it is possible to obtain a rotating electrical machine that is a simple replacement work and can greatly reduce the replacement work and reduce the cost.

また、新たな第２の締結体２３を交換して取り付ける場合は、固定子鉄心４の紙面上左端部側に位置することになる最初１個目の締結片２３１の雌ねじ２３１ｂに２個目の締結片２３１の雄ねじ２３１ａをねじ込み、スパナの掛かり部２３１ｃにスパナを掛けて強固に締結する。２個目の締結片２３１の雌ねじ２３１ｂに３個目の締結片２３１の雄ねじ２３１ａをねじ込み、スパナの掛かり部２３１ｃにスパナを掛けて強固に締結する。順次同じように締結片２３１をねじ込んでいく。そして、図６に示すように、固定子鉄心４の紙面上右端部側に位置する最端部側の締結片２３１の雄ねじ２３１ａを１つ前の締結片２３１の雌ねじ２３１ｂにねじ込み、例えば六角状の多角加工体２３１ｄにスパナを掛けて強固に締結し、新たな第２の締結体２３を完成させる。 In addition, when a new second fastening body 23 is replaced and attached, the second screw 231b of the first fastening piece 231 that is positioned on the left end side of the stator core 4 on the paper surface is attached to the second one. The male thread 231a of the fastening piece 231 is screwed in, and the spanner hook portion 231c is hung with a spanner to be firmly fastened. The male screw 231a of the third fastening piece 231 is screwed into the female screw 231b of the second fastening piece 231, and the spanner hook portion 231c is hung with a spanner to be firmly fastened. The fastening pieces 231 are sequentially screwed in the same manner. Then, as shown in FIG. 6, the male screw 231a of the fastening piece 231 on the outermost end side located on the right end side on the paper surface of the stator core 4 is screwed into the female screw 231b of the previous fastening piece 231, for example, a hexagonal shape. A polygonal processed body 231d is spanned with a spanner and firmly fastened to complete a new second fastening body 23.

第２の締結体２３の固定子鉄心４の紙面上左端部側に位置する締結片２３１の取り付けねじ部２３１ｅ（図示せず）にナット（図示せず）をねじ込むとともに固定子鉄心４の紙面上右端部側に位置する最端部側の締結片２３１の取り付けねじ部２３１ｅにナット２４をねじ込み、両ナットを第２の締結体２３に強固に締結して固定子鉄心４を強固に締結することにより、第２の締結体２３の交換が完了する。 On the paper surface of the stator core 4, a nut (not shown) is screwed into a mounting screw portion 231 e (not shown) of the fastening piece 231 located on the left end side on the paper surface of the stator core 4 of the second fastening body 23. The nut 24 is screwed into the mounting screw portion 231e of the fastening piece 231 on the extreme end side located on the right end side, and both the nuts are firmly fastened to the second fastening body 23 to firmly fasten the stator core 4. Thus, the replacement of the second fastening body 23 is completed.

なお、多角加工体２３１ｄは例えば六角状に構成された場合について述べたが、四角状であってもよく他の多角形状からなる多角加工体２３１ｄであってもよく、上述した実施の形態１と同様の効果を奏する。 The polygonal processed body 231d has been described as having a hexagonal shape, for example. However, the polygonal processed body 231d may be a rectangular shape or a polygonal processed body 231d having another polygonal shape. The same effect is produced.

実施の形態２．
この発明の実施の形態２を図９〜図１４に基づいて説明するが、各図において、同一、または相当部材、部位については同一符号を付して説明する。図９はこの発明の実施の形態２に係わる回転電機を示す要部断面図である。図１０はこの発明の実施の形態２に係わる回転電機における第２の締結体を示す平面図である。図１１はこの発明の実施の形態２に係わる回転電機における第２の締結体を示す側面図である。図１２はこの発明の実施の形態２に係わる回転電機を示す断面図である。図１３はこの発明の実施の形態２に係わる回転電機における第２の締結体を示す正面図である。図１４はこの発明の実施の形態２に係わる回転電機における第２の締結体を示す側面図である。 Embodiment 2. FIG.
The second embodiment of the present invention will be described with reference to FIGS. 9 to 14. In the drawings, the same or corresponding members and parts will be described with the same reference numerals. FIG. 9 is a cross-sectional view of a principal part showing a rotary electric machine according to Embodiment 2 of the present invention. FIG. 10 is a plan view showing a second fastening body in the rotary electric machine according to Embodiment 2 of the present invention. FIG. 11: is a side view which shows the 2nd fastening body in the rotary electric machine concerning Embodiment 2 of this invention. FIG. 12 is a sectional view showing a rotary electric machine according to Embodiment 2 of the present invention. FIG. 13: is a front view which shows the 2nd fastening body in the rotary electric machine concerning Embodiment 2 of this invention. FIG. 14 is a side view showing a second fastening body in the rotary electric machine according to Embodiment 2 of the present invention.

上述した実施の形態１においては、複数に分割された第２の締結体２３の締結片２３１をねじ込み式にて締結して構成した場合について述べたが、この実施の形態２においては、固定子コイル５のコイルエンド５ａに干渉しないように複数に分割した締結片２５１を係合式にて第２の締結体２５を構成したものである。 In the first embodiment described above, the case has been described in which the fastening piece 231 of the second fastening body 23 divided into a plurality of parts is fastened by a screw-in type, but in the second embodiment, a stator is provided. The second fastening body 25 is configured by an engagement type of fastening pieces 251 divided into a plurality of pieces so as not to interfere with the coil end 5a of the coil 5.

すなわち、第２の締結体２５は、固定子コイル５のコイルエンド５ａに干渉しないように複数の締結片２５１に分割して配設している。締結片２５１は図１０に示すように一方側に第１の係合部２５１ａが形成され、他方側に第２の係合部２５１ｂが形成されている。 That is, the second fastening body 25 is divided into a plurality of fastening pieces 251 so as not to interfere with the coil end 5 a of the stator coil 5. As shown in FIG. 10, the fastening piece 251 has a first engaging portion 251a formed on one side and a second engaging portion 251b formed on the other side.

さらに、図１２に示すように、固定子鉄心４の紙面上右端部側に位置する最端部側の締結片２５１には図１３に示すように一方側に第１の係合部２５１ａが形成され、他方側に例えば六角状の多角加工体２５１ｃが形成されている。また、その締結片２５１の他方側にはナット２４の取り付けねじ部２５１ｄが形成されている。なお、図示はしないが、固定子鉄心４の紙面上左端部側に位置することになる最初１個目の締結片２５１の一方側にも固定子鉄心４の紙面上右端部側に位置する最端部側の締結片２５１と同様に例えば六角状の多角加工体２５１ｃおよびナット２４の取り付けねじ部２５１ｄが形成されている。 Further, as shown in FIG. 12, a first engagement portion 251a is formed on one side of the fastening piece 251 on the outermost end side located on the right end portion on the paper surface of the stator core 4 as shown in FIG. For example, a hexagonal polygonal processed body 251c is formed on the other side. Further, a mounting screw portion 251d of the nut 24 is formed on the other side of the fastening piece 251. Although not shown, the first fastening piece 251 that is located on the left end side of the stator core 4 on the paper surface is also positioned on the right side of the stator core 4 on the right end side of the stator core 4. For example, a hexagonal polygonal processed body 251c and a mounting screw portion 251d of the nut 24 are formed in the same manner as the fastening piece 251 on the end side.

次に第２の締結体２５の組み立ては、まず固定子鉄心４の紙面上左端部側に位置することになる最初１個目の締結片２５１の第２の係合部２５１ｂに２個目の締結片２５１の第１の係合部２５１ａを係合させて挿入する。２個目の締結片２５１の第２の係合部２５１ｂに３個目の締結片２３１の第１の係合部２５１ａを係合させて挿入する。順次同じように締結片２５１を係合させていく。そして、図１３に示すように、固定子鉄心４の紙面上右端部側に位置する最端部側の締結片２５１の第１の係合部２５１ａを１つ前の締結片２５１の第２の係合部２５１ｂに係合させて第２の締結体２５を完成させる。 Next, in assembling the second fastening body 25, first, the second engaging portion 251b of the first fastening piece 251 that is positioned on the left end portion side of the stator core 4 on the paper surface is connected to the second engaging portion 251b. The first engagement portion 251a of the fastening piece 251 is engaged and inserted. The first engagement portion 251a of the third fastening piece 231 is engaged with and inserted into the second engagement portion 251b of the second fastening piece 251. The fastening pieces 251 are sequentially engaged in the same manner. Then, as shown in FIG. 13, the first engaging portion 251 a of the fastening piece 251 on the outermost end side located on the right end portion side of the stator core 4 on the paper surface is connected to the second engaging piece 251 of the previous fastening piece 251. The second fastening body 25 is completed by engaging with the engaging portion 251b.

第２の締結体２５の固定子鉄心４の紙面上左端部側に位置する締結片２５１の取り付けねじ部２５１ｄ（図示せず）にナット（図示せず）をねじ込むとともに固定子鉄心４の紙面上右端部側に位置する最端部側の締結片２５１の取り付けねじ部２５１ｄにナット２４をねじ込み、例えば六角状の多角加工体２５１ｃにスパナを掛けて両ナットを第２の締結体２５に強固に締結することにより、固定子鉄心４を強固に締結する。 On the paper surface of the stator core 4, a nut (not shown) is screwed into a mounting screw portion 251 d (not shown) of the fastening piece 251 located on the left end side on the paper surface of the stator core 4 of the second fastening body 25. The nut 24 is screwed into the mounting screw portion 251d of the fastening piece 251 located on the right end side on the right end side, and a wrench is hung on the hexagonal polygonal processed body 251c, for example, so that both nuts are firmly attached to the second fastening body 25. By fastening, the stator core 4 is firmly fastened.

この実施の形態２によれば、第２の締結体２５は複数の締結片２５１に分割されており、第２の締結体２５を交換するために引き抜く場合、固定子鉄心４の紙面上右端部側に位置する最端部側の締結片２５１の取り付けねじ部２５１ｄからナット２４を取り外すとともに固定子鉄心４の紙面上左端部側に位置する締結片２５１の取り付けねじ部２３１ｄ（図示せず）からナットを取り外す。 According to the second embodiment, the second fastening body 25 is divided into a plurality of fastening pieces 251, and when the second fastening body 25 is pulled out for replacement, the right end of the stator core 4 on the paper surface The nut 24 is removed from the mounting screw portion 251d of the fastening piece 251 at the endmost side located on the side, and from the mounting screw portion 231d (not shown) of the fastening piece 251 located on the left end side of the stator core 4 on the paper surface. Remove the nut.

両ナットを取り外した後に、固定子鉄心４の紙面上右端部側に位置する最端部側の締結片２５１をクランパ１８より外方向の位置まで引き抜き、１つ前の締結片２５１の第２の係合部２５１ｂとの係合を解除して最端部側の締結片２５１を取り出す。最端部側の締結片２５１を取り出した後に、次の締結片２５１をクランパ１８より外方向の位置まで引き抜き、１つ前の締結片２５１の第２の係合部２５１ｂとの係合を解除してその締結片２５１を取り出す。以下順次複数の締結片２５１を同様の動作により取り出す。 After removing both nuts, the fastening piece 251 on the outermost end side located on the right end side of the stator core 4 on the paper surface is pulled out from the clamper 18 to the position in the outward direction, and the second fastening piece 251 of the previous one is removed. The engagement with the engagement portion 251b is released, and the fastening piece 251 on the endmost side is taken out. After taking out the fastening piece 251 on the endmost side, the next fastening piece 251 is pulled out from the clamper 18 to a position outward, and the engagement of the previous fastening piece 251 with the second engaging portion 251b is released. Then, the fastening piece 251 is taken out. Thereafter, a plurality of fastening pieces 251 are sequentially taken out by the same operation.

このように、複数の締結片２５１に分割された第２の締結体２５を個々の締結片２５１ごとに引き抜いて取り出すことができるので、上述した回転電機のように、固定子コイル５を固定子鉄心４から分解して取り出すことなく引き抜くことができ、固定子コイル５の分解作業を皆無とすることができるとともに固定子コイル５の絶縁修復も不要で固定子コイル５の再装着作業も皆無となり、簡易な交換作業となり交換作業の大幅な短縮化および低コストを図ることができる回転電機を得ることができる。 Thus, since the 2nd fastening body 25 divided | segmented into the some fastening piece 251 can be extracted and taken out for every fastening piece 251, the stator coil 5 can be fixed to a stator like the rotary electric machine mentioned above. It can be pulled out from the iron core 4 without being disassembled, and the disassembly work of the stator coil 5 can be eliminated. In addition, the stator coil 5 is not required to be repaired and the stator coil 5 is not remounted. Thus, it is possible to obtain a rotating electrical machine that is a simple replacement work and can greatly reduce the replacement work and reduce the cost.

さらに、この実施の形態２よれば締結片２５１間の係合状態を解除するだけで締結片２５１を取り出すことができるので、上述した実施の形態１よりもさらに交換作業性を向上させることができる。 Furthermore, according to the second embodiment, the fastening piece 251 can be taken out only by releasing the engagement state between the fastening pieces 251. Therefore, the replacement workability can be further improved as compared with the first embodiment described above. .

また、新たな第２の締結体２５を交換して取り付ける場合は、固定子鉄心４の紙面上左端部側に位置することになる最初１個目の締結片２５１の第２の係合部２５１ｂに２個目の締結片２５１の第１の係合部２５１ａを係合させて挿入する。２個目の締結片２５１の第２の係合部２５１ｂに３個目の締結片２５１の第１の係合部２５１ａを係合させて挿入する。順次同じように締結片２５１を係合させていく。そして、図１３に示すように、固定子鉄心４の紙面上右端部側に位置する最端部側の締結片２５１の第１の係合部２５１ａを１つ前の締結片２５１の第２の係合部２５１ｂに係合させて第２の締結体２５を完成させる。 In addition, when a new second fastening body 25 is replaced and attached, the second engaging portion 251b of the first fastening piece 251 that is positioned on the left end portion side of the stator core 4 on the paper surface. The first engagement portion 251a of the second fastening piece 251 is engaged with and inserted. The first engagement portion 251a of the third fastening piece 251 is engaged with and inserted into the second engagement portion 251b of the second fastening piece 251. The fastening pieces 251 are sequentially engaged in the same manner. Then, as shown in FIG. 13, the first engaging portion 251 a of the fastening piece 251 on the outermost end side located on the right end portion side of the stator core 4 on the paper surface is connected to the second engaging piece 251 of the previous fastening piece 251. The second fastening body 25 is completed by engaging with the engaging portion 251b.

第２の締結体２５の固定子鉄心４の紙面上左端部側に位置する締結片２５１の取り付けねじ部２５１ｄ（図示せず）にナット（図示せず）をねじ込むとともに固定子鉄心４の紙面上右端部側に位置する最端部側の締結片２５１の取り付けねじ部２５１ｄにナット２４をねじ込み、例えば六角状の多角加工体２５１ｃにスパナを掛けて両ナットを第２の締結体２５に強固に締結することにより、第２の締結体２５の交換が完了する。 On the paper surface of the stator core 4, a nut (not shown) is screwed into a mounting screw portion 251 d (not shown) of the fastening piece 251 located on the left end side on the paper surface of the stator core 4 of the second fastening body 25. The nut 24 is screwed into the mounting screw portion 251d of the fastening piece 251 located on the right end side on the right end side, and a wrench is hung on the hexagonal polygonal processed body 251c, for example, and both nuts are firmly attached to the second fastening body 25. By fastening, the replacement of the second fastening body 25 is completed.

なお、多角加工体２５１ｃは例えば六角状に構成された場合について述べたが、四角状であってもよく他の多角形状からなる多角加工体２５１ｃであってもよく、上述した実施の形態２と同様の効果を奏する。 In addition, although the case where the polygonal processed body 251c was comprised, for example in the hexagonal shape was described, square shape may be sufficient as the polygonal processed body 251c which consists of another polygon shape, and Embodiment 2 mentioned above and The same effect is produced.

実施の形態３．
この発明の実施の形態３を図１５〜図１７に基づいて説明するが、各図において、同一、または相当部材、部位については同一符号を付して説明する。図１５はこの発明の実施の形態３に係わる回転電機を示す要部断面図である。図１６はこの発明の実施の形態３に係わる回転電機を示す要部断面図である。図１７はこの発明の実施の形態３に係わる回転電機における第２の締結体を示す平面図である。 Embodiment 3 FIG.
A third embodiment of the present invention will be described with reference to FIGS. 15 to 17. In the drawings, the same or equivalent members and parts will be described with the same reference numerals. FIG. 15 is a cross-sectional view of a main part showing a rotary electric machine according to Embodiment 3 of the present invention. FIG. 16 is a cross-sectional view of a principal part showing a rotary electric machine according to Embodiment 3 of the present invention. FIG. 17 is a plan view showing a second fastening body in the rotary electric machine according to Embodiment 3 of the present invention.

上述した実施の形態１および実施の形態２においては、第２の締結体２３，２５が複数に分割された締結片２３１，２５１により構成され、各締結片２３１，２５１毎に引き抜きあるいは挿入していく場合について述べたが、この実施の形態３においては第２の締結体２６が固定子コイル５のコイルエンド５ａに干渉しないように可撓性部材により構成された場合を示している。 In the first embodiment and the second embodiment described above, the second fastening bodies 23 and 25 are constituted by the fastening pieces 231 and 251 divided into a plurality of parts, and each fastening piece 231 and 251 is pulled out or inserted. In the third embodiment, the case where the second fastening body 26 is formed of a flexible member so as not to interfere with the coil end 5a of the stator coil 5 is described.

すなわち、第２の締結体２６は可撓性部材としてワイヤーロープで構成された場合を示し、その両端には図１７に示すようにかしめ部材２６ａによりかしめられ、そのかしめ部材２６ａにねじ部材２６ｂが取り付けられている。この第２の締結体２６のねじ部材２６ｂにナット２７を螺入し、クランパ１８を介して第２の締結体２６とナット２７により固定子鉄心４を強固に締結する。 That is, the second fastening body 26 shows a case where it is constituted by a wire rope as a flexible member, and both ends thereof are caulked by caulking members 26a as shown in FIG. 17, and screw members 26b are attached to the caulking members 26a. It is attached. A nut 27 is screwed into the screw member 26 b of the second fastening body 26, and the stator core 4 is firmly fastened by the second fastening body 26 and the nut 27 via the clamper 18.

次に第２の締結体２６の組み立ては、可撓性部材としてワイヤーロープで構成された第２の締結体２６を固定子鉄心４に貫挿し、第２の締結体２６の両端のねじ部材２６ｂにナット２７を螺入し、クランパ１８を介して第２の締結体２６とナット２７により固定子鉄心４を強固に締結する。 Next, the second fastening body 26 is assembled by inserting the second fastening body 26 made of a wire rope as a flexible member into the stator core 4 and screw members 26b at both ends of the second fastening body 26. A nut 27 is screwed into the stator, and the stator core 4 is firmly fastened by the second fastening body 26 and the nut 27 via the clamper 18.

この実施の形態３によれば、第２の締結体２６は可撓性部材としてワイヤーロープで構成されており、第２の締結体２６を引き抜く場合、第２の締結体２６の両端のねじ部材２６ｂからナット２７を取り外す。 According to this Embodiment 3, the 2nd fastening body 26 is comprised by the wire rope as a flexible member, and when pulling out the 2nd fastening body 26, the screw member of the both ends of the 2nd fastening body 26 Remove the nut 27 from 26b.

両ナット２７を取り外した後に、図１６に示すように、可撓性部材としてワイヤーロープで構成された第２の締結体２６の可撓性を利用して固定子コイル５のコイルエンド５ａに干渉しないように第２の締結体２６を引き抜いて取り出す。 After both nuts 27 are removed, as shown in FIG. 16, the flexibility of the second fastening body 26 constituted by a wire rope as a flexible member is used to interfere with the coil end 5a of the stator coil 5. The second fastening body 26 is pulled out and taken out so as not to occur.

このように、可撓性部材としてワイヤーロープで構成された第２の締結体２６を固定子コイル５のコイルエンド５ａに干渉しないように引き抜いて取り出すことができるので、上述した回転電機のように、固定子コイル５を固定子鉄心４から分解して取り出すことなく引き抜くことができ、固定子コイル５の分解作業を皆無とすることができるとともに固定子コイル５の絶縁修復も不要で固定子コイル５の再装着作業も皆無となり、簡易な交換作業となり交換作業の大幅な短縮化および低コストを図ることができる回転電機を得ることができる。しかも、上述した各実施の形態のように分割された締結片２３１，２５１ごとに取り付けあるいは引き抜くこともなく、上述した各実施の形態よりもさらに作業性に優れてより低コスト化を図ることができる。 As described above, the second fastening body 26 constituted by the wire rope as the flexible member can be pulled out and taken out so as not to interfere with the coil end 5a of the stator coil 5, so that the rotating electric machine described above is used. The stator coil 5 can be pulled out without being disassembled and taken out from the stator core 4, and the disassembly work of the stator coil 5 can be eliminated, and the stator coil 5 is not required to be insulated and repaired. Thus, there is no remounting work 5, and a simple replacement work can be performed, so that a rotating electrical machine capable of greatly shortening the replacement work and reducing the cost can be obtained. Moreover, without attaching or pulling out each of the divided fastening pieces 231 and 251 as in the above-described embodiments, the workability is further improved and the cost can be further reduced as compared with the above-described embodiments. it can.

また、新たな第２の締結体２６を交換して取り付ける場合は、可撓性部材としてワイヤーロープで構成された新たな第２の締結体２６を固定子コイル５のコイルエンド５ａに干渉しないように固定子鉄心４に貫挿させ、その両端のねじ部材２６ｂにナット２７を螺入し強固に締結して固定子鉄心４を強固に締結することにより、第２の締結体２６の交換が完了する。 Moreover, when replacing and attaching the new 2nd fastening body 26, it does not interfere with the coil end 5a of the stator coil 5 with the new 2nd fastening body 26 comprised with the wire rope as a flexible member. Are inserted into the stator core 4, and nuts 27 are screwed into the screw members 26b at both ends thereof and fastened firmly to fasten the stator core 4, thereby completing the replacement of the second fastening body 26. To do.

実施の形態４．
この発明の実施の形態４を図１８〜図２０に基づいて説明するが、各図において、同一、または相当部材、部位については同一符号を付して説明する。図１８はこの発明の実施の形態４に係わる回転電機を示す要部断面図である。図１９はこの発明の実施の形態４に係わる回転電機における第２の締結体を示す要部平面図である。図２０はこの発明の実施の形態４に係わる回転電機における第２の締結体を示す断面図である。 Embodiment 4 FIG.
A fourth embodiment of the present invention will be described with reference to FIGS. 18 to 20. In the drawings, the same or corresponding members and parts will be described with the same reference numerals. FIG. 18 is a cross-sectional view of a principal part showing a rotary electric machine according to Embodiment 4 of the present invention. FIG. 19 is a plan view of a principal portion showing a second fastening body in a rotary electric machine according to Embodiment 4 of the present invention. FIG. 20 is a sectional view showing a second fastening body in the rotary electric machine according to Embodiment 4 of the present invention.

上述した実施の形態３において、第２の締結体２６は可撓性部材としてワイヤーロープで構成された場合について述べたが、この実施の形態４においては第２の締結体２８が固定子コイル５のコイルエンド５ａに干渉しないように複数の締結片２８１をピン２８２で連結した可撓性部材により構成した場合を示している。 In the above-described third embodiment, the case where the second fastening body 26 is formed of a wire rope as a flexible member has been described. However, in this fourth embodiment, the second fastening body 28 is the stator coil 5. The case where it comprises with the flexible member which connected the some fastening piece 281 with the pin 282 so that it may not interfere with the coil end 5a of this is shown.

すなわち、第２の締結体２８は可撓性部材として複数の締結片２８１をピン２８２で連結した場合を示し、その両端にはねじ部材２８３が形成されている。この第２の締結体２８のねじ部材２８３にナット（図示せず）を螺入し、クランパ１８を介して第２の締結体２８とナット（図示せず）により固定子鉄心４を強固に締結する。 That is, the 2nd fastening body 28 shows the case where the some fastening piece 281 is connected with the pin 282 as a flexible member, The screw member 283 is formed in the both ends. A nut (not shown) is screwed into the screw member 283 of the second fastening body 28, and the stator core 4 is firmly fastened by the second fastening body 28 and the nut (not shown) via the clamper 18. To do.

次に第２の締結体２８の組み立ては、可撓性部材として複数の締結片２８１をピン２８２で連結して構成された第２の締結体２８を固定子鉄心４に貫挿し、第２の締結体２８の両端のねじ部材２８３にナット（図示せず）を螺入し、クランパ１８を介して第２の締結体２８とナット（図示せず）により固定子鉄心４を強固に締結する。 Next, the second fastening body 28 is assembled by inserting a second fastening body 28 constituted by connecting a plurality of fastening pieces 281 with a pin 282 as a flexible member into the stator core 4 and inserting a second fastening body 28 into the stator core 4. A nut (not shown) is screwed into the screw members 283 at both ends of the fastening body 28, and the stator core 4 is firmly fastened by the second fastening body 28 and the nut (not shown) via the clamper 18.

この実施の形態４によれば、第２の締結体２８は可撓性部材として複数の締結片２８１をピン２８２で連結して構成されており、第２の締結体２８を引き抜く場合、第２の締結体２８の両端のねじ部材２８３からナットを取り外す。 According to the fourth embodiment, the second fastening body 28 is configured by connecting a plurality of fastening pieces 281 with the pins 282 as a flexible member, and when the second fastening body 28 is pulled out, The nuts are removed from the screw members 283 at both ends of the fastening body 28.

両ナットを取り外した後に、図１８に示すように、可撓性部材として複数の締結片２８１をピン２８２で連結して構成された第２の締結体２８の可撓性を利用して固定子コイル５のコイルエンド５ａに干渉しないように第２の締結体２８を引き抜いて取り出す。 After removing both nuts, as shown in FIG. 18, a stator utilizing the flexibility of the second fastening body 28 configured by connecting a plurality of fastening pieces 281 as flexible members with pins 282. The second fastening body 28 is pulled out and taken out so as not to interfere with the coil end 5a of the coil 5.

このように、可撓性部材として複数の締結片２８１をピン２８２で連結して構成された第２の締結体２８を固定子コイル５のコイルエンド５ａに干渉しないように引き抜いて取り出すことができるので、上述した回転電機のように、固定子コイル５を固定子鉄心４から分解して取り出すことなく引き抜くことができ、固定子コイル５の分解作業を皆無とすることができるとともに固定子コイル５の絶縁修復も不要で固定子コイル５の再装着作業も皆無となり、簡易な交換作業となり交換作業の大幅な短縮化および低コストを図ることができる回転電機を得ることができる。しかも、上述した各実施の形態のように分割された締結片２３１，２５１ごとに取り付けあるいは引き抜くこともなく、上述した各実施の形態よりもさらに作業性に優れてより低コスト化を図ることができる。 In this way, the second fastening body 28 configured by connecting the plurality of fastening pieces 281 as the flexible member with the pins 282 can be pulled out and taken out so as not to interfere with the coil end 5a of the stator coil 5. Therefore, like the above-described rotating electrical machine, the stator coil 5 can be pulled out from the stator core 4 without being disassembled and taken out, and the disassembly work of the stator coil 5 can be eliminated and the stator coil 5 can be eliminated. Thus, there is no need to repair the insulation, and there is no need to reattach the stator coil 5, so that the rotating machine can be simply replaced, and the rotating machine can be greatly shortened and the cost can be reduced. Moreover, without attaching or pulling out each of the divided fastening pieces 231 and 251 as in the above-described embodiments, the workability is further improved and the cost can be further reduced as compared with the above-described embodiments. it can.

また、新たな第２の締結体２８を交換して取り付ける場合は、可撓性部材として複数の締結片２８１をピン２８２で連結して構成された新たな第２の締結体２８を固定子コイル５のコイルエンド５ａに干渉しないように固定子鉄心４に貫挿させ、その両端のねじ部材２８３にナット（図示せず）を螺入し強固に締結して固定子鉄心４を強固に締結することにより、第２の締結体２８の交換が完了する。 When a new second fastening body 28 is replaced and attached, a new second fastening body 28 configured by connecting a plurality of fastening pieces 281 with a pin 282 as a flexible member is used as a stator coil. 5 is inserted into the stator core 4 so as not to interfere with the coil end 5a, and nuts (not shown) are screwed into the screw members 283 at both ends thereof and firmly fastened to firmly fasten the stator core 4. Thus, the replacement of the second fastening body 28 is completed.

なお、この発明は、その発明の範囲内において、各実施の形態を自由に組み合わせたり、各実施の形態を適宜、変形、省略することが可能である。 It should be noted that within the scope of the present invention, the embodiments can be freely combined, or the embodiments can be appropriately modified or omitted.

この発明は、固定子コイルを分解することなく固定子鉄心の締結材の交換を行うことができる回転電機の実現に好適である。 The present invention is suitable for realizing a rotating electrical machine that can replace the fastening material of the stator core without disassembling the stator coil.

２固定子
４固定子鉄心
５固定子コイル
５ａコイルエンド
６回転子
１９第１の締結体
２３第２の締結体
２５第２の締結体
２６第２の締結体
２８第２の締結体 2 Stator 4 Stator Core 5 Stator Coil 5a Coil End 6 Rotor 19 First Fastening Body 23 Second Fastening Body 25 Second Fastening Body 26 Second Fastening Body 28 Second Fastening Body

Claims

A stator composed of a stator core and a stator coil mounted on the stator core and having coil ends extending to both ends of the stator core; and a rotation disposed on the inner peripheral side of the stator A first fastener that is disposed on the outer peripheral side of the stator core and fastens the stator core; and a second fastener that is disposed on the inner peripheral side of the stator core and fastens the stator core. In the rotating electrical machine provided with the fastening body, the second fastening body is connected by a fastening piece divided into three or more in the axial direction of the stator core, and the second fastening body is connected to the stator core. A rotating electrical machine , wherein when pulling out from the stator core, the fastening piece is pulled out from the stator core so as not to interfere with a coil end of the stator coil .

2. The rotating electrical machine according to claim 1, wherein the fastening pieces of the second fastening body divided into three or more pieces are configured to be screwed.

The rotating electrical machine according to claim 1, wherein the fastening piece of the second fastening body divided into three or more pieces is configured to be engaged.

A stator composed of a stator core and a stator coil mounted on the stator core and having coil ends extending to both ends of the stator core; and a rotation disposed on the inner peripheral side of the stator A first fastener that is disposed on the outer peripheral side of the stator core and fastens the stator core; and a second fastener that is disposed on the inner peripheral side of the stator core and fastens the stator core. In the rotating electrical machine including the fastening body, the second fastening body is configured by a flexible member, and when the second fastening body is pulled out from the stator core, the flexibility of the flexible member is determined. The rotating electrical machine is characterized in that the second fastening body is pulled out of the stator core so as not to interfere with the coil end of the stator coil .

The rotating electrical machine according to claim 4, wherein the second fastening body made of a flexible member is made of a wire rope.

5. The rotating electrical machine according to claim 4, wherein the second fastening body configured by a flexible member is configured by connecting a plurality of fastening pieces with pins.