JPS61142946A - Fixing method for stator winding for rotary electric machine - Google Patents
Fixing method for stator winding for rotary electric machineInfo
- Publication number
- JPS61142946A JPS61142946A JP59263190A JP26319084A JPS61142946A JP S61142946 A JPS61142946 A JP S61142946A JP 59263190 A JP59263190 A JP 59263190A JP 26319084 A JP26319084 A JP 26319084A JP S61142946 A JPS61142946 A JP S61142946A
- Authority
- JP
- Japan
- Prior art keywords
- wedge
- insulating spacer
- winding
- slot
- windings
- 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
- 238000004804 winding Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims description 10
- 125000006850 spacer group Chemical group 0.000 claims abstract description 24
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
- H02K3/487—Slot-closing devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、タービン発電機や水車発電機の固定子巻線
の固定方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for fixing stator windings of a turbine generator or a water turbine generator.
従来の固定子巻線の固定方法として例えば特開昭５５−
１１７４４８号公報に示すものがある。即ち第４図にお
いて、（１１は固定子鉄心、（２）はこの鉄心（１）に
形成されたスロット、（３）はこのスロット（２）に嵌
入された巻線、（４）はこの巻線（３）に設けられた絶
縁被覆、（５１は上記巻線（３）をスロット（２）の壁
面方向に固定するスロットライナ、（６）は上記２組の
巻線（３）の間やスロット底部などに介装された絶縁ス
ペーサ、（７）は上記巻線（３）をスロット（２）内に
固定する楔、（８）は楔（７）が係合する楔係合部、（
９）は上記巻線（３）の寸法が経年変化してもスロット
（２）内で強固に押し付けるためのりップルバネである
。For example, as a conventional method of fixing stator windings,
There is one shown in Japanese Patent No. 117448. That is, in FIG. 4, (11 is the stator core, (2) is the slot formed in this core (1), (3) is the winding inserted into this slot (2), and (4) is this winding. Insulating coating provided on the wire (3), (51 is a slot liner that fixes the winding (3) in the wall direction of the slot (2), (6) is between the two sets of windings (3) and an insulating spacer interposed at the bottom of the slot, (7) a wedge for fixing the winding (3) in the slot (2), (8) a wedge engaging portion with which the wedge (7) engages;
9) is a ripple spring for firmly pressing the winding (3) within the slot (2) even if the dimensions of the winding (3) change over time.
次に上記構成における組立手順について説明する。巻１
ｓ（３１の電磁力による振動を防止するため、巻１１１
（３）と楔係合部（８）間の間隙ａを計測し、これより
若干厚さの厚い絶縁スペーサ（６）を巻線（３）の上部
に並べた後、スロット（２）端部より長さ２００胴前後
の楔（７）をハンマなとで押し込んでいた。次に絶縁ス
ペーサ（６）の並べ方について述べると、巻線（３）は
素ｉｓ（図示せず）を多数積層して各々の積層間に眉間
絶縁物を挿入し、全体的に絶縁波１ （４１を設けろ作
業工程で製作しており、各材料の厚さの変動や形状差に
よって巻線（３）の高さが変化するため、各スロット（
２）及び同一スロット（２）でも位置によって上記８寸
法が異なる。このため厚さの異なった絶縁スペーサ（６
）を５種類以上用意し、それぞれの位置で寸法調整を行
っていた。Next, the assembly procedure for the above configuration will be explained. Volume 1
s (Volume 111 to prevent vibration due to electromagnetic force of 31)
(3) and the wedge engaging part (8), and after arranging the insulating spacer (6) slightly thicker than this on the upper part of the winding (3), A wedge (7), approximately 200 barrels long, was pushed in with a hammer. Next, to explain how to arrange the insulating spacers (6), the winding (3) is made by laminating a large number of bare IS (not shown) and inserting a glabellar insulator between each laminated layer, so that the entire insulation wave 1 ( 41 is manufactured during the work process, and the height of the winding (3) changes due to variations in the thickness and shape of each material, so each slot (
2) and the above eight dimensions differ depending on the position even in the same slot (2). Therefore, insulating spacers with different thicknesses (6
) were prepared and the dimensions were adjusted at each position.
従来の方法では、以上述べたように巻線（３）を強固に
固定するためには絶縁スペーサ（６）の厚さを緊密に調
整する必要があり、その調整作業が繁雑で多大な時間を
費やしていた。特に軸方向寸法が長大なものでは、均一
な巻線（３）の押し付は力を得るのは極めて困難である
。即ち固定子鉄心（１）は薄鉄板を積層したものからな
り、スロット（２）の壁面はやすり状になっているので
、楔（７）を楔係合部（８）の中央付近まで移動させる
とその間に楔（７）が削られて楔係合部（８）との嵌合
状態が緩くなり、固定子巻線（３）を軸方向全般的に強
固に固定しにくい欠点があった。In the conventional method, as mentioned above, in order to firmly fix the winding (3), it is necessary to closely adjust the thickness of the insulating spacer (6), and the adjustment work is complicated and takes a lot of time. was spending. Especially when the axial dimension is long, it is extremely difficult to press the winding (3) uniformly with force. That is, the stator core (1) is made of laminated thin iron plates, and the wall surface of the slot (2) is file-shaped, so the wedge (7) is moved to near the center of the wedge engagement part (8). In the meantime, the wedge (7) is shaved and the fit with the wedge engaging portion (8) becomes loose, making it difficult to firmly fix the stator winding (3) in the entire axial direction.
この発明は以上のような従来の欠点を除去するためにな
されたもので、軸方向寸法が長大であっても楔を容易に
装着できかつスロット内の巻線を強固に固定し得る回転
電機の固定方法を提供するものである。This invention was made in order to eliminate the above-mentioned drawbacks of the conventional rotating electric machine, and it is possible to easily attach a wedge even if the axial dimension is large, and to firmly fix the winding in the slot. This provides a fixing method.
この発明に係る固定方法はまず弾性体をスロット外部で
予め楔と絶縁スペーサ間に入れてボルトとナツトの締結
により扁平状にし、この状態でスロット端部より順次軸
方向に挿入し、その後ボルト、ナツトの締結を解除する
ようにしたものである。The fixing method according to the present invention is to first insert an elastic body between a wedge and an insulating spacer outside the slot, make it flat by tightening a bolt and a nut, and in this state insert the elastic body sequentially from the end of the slot in the axial direction. This is designed to release the nut.
この発明では、圧縮変形させた弾性体を介在してボルト
で組み立ててなる楔と絶縁スペーサを係合部に挿入して
その復元力により絶縁スペーサを巻線に押し付け、確固
に固定されるものとなる。In this invention, a wedge and an insulating spacer assembled with bolts with a compressed elastic body interposed therebetween are inserted into the engagement part, and the insulating spacer is pressed against the winding by the restoring force, and is firmly fixed. Become.
以下この発明の一実施例を第１図〜第３図について説明
する。図において、（１）〜（５）は上記第１図のもの
と同様であり、（６）は巻線（３）の上部に配置するメ
ネジ（６ａ）付きの絶縁スペーサ、（７）は楔係合部（
８）に係合する楔で、上記絶縁スペーサ（６）と同心円
のボルト穴（７ａ）を有する。（９）は上記絶縁スペー
サ（６）と＋Ｍ （７）の間に配置されボルト穴（９ａ
）を有する弾性体のりップルバネ、ａＯ）及び（１１）
は上記絶縁スペーサ（６）とりップルバネ（９）及び楔
（７）を一体化するためのボルトとナツトである。An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. In the figure, (1) to (5) are the same as those in FIG. Engagement part (
8) and has a bolt hole (7a) concentric with the insulating spacer (6). (9) is arranged between the above insulating spacer (6) and +M (7) and the bolt hole (9a
) an elastic ripple spring having aO) and (11)
are bolts and nuts for integrating the insulating spacer (6), the pull spring (9) and the wedge (7).
次にその組立手順について説明する。第１図で示したよ
うにスロット外部で予めボルト穴付き楔（７）とボルト
穴付きリップルバネ（９）及びメネジ付き絶縁スペーサ
（６）を組み立てるが、この際ボルト（１０１（材質は
問わない）を絶縁スペーサ（６）のメネジ（６ａ）に挿
入しナツト（１１）の締結によってリップルバネ（９）
を第２図のようにたわませて平板状に押え付ける。なお
ボルトの取付は本数は、巻線の振動を抑制するために必
要な反力をもとにボルト穴付き楔（７）とメネジ付き絶
縁スペーサ（６）の機械的強度により決定される。Next, the assembly procedure will be explained. As shown in Figure 1, the wedge with bolt hole (7), ripple spring with bolt hole (9), and insulating spacer with female thread (6) are assembled in advance outside the slot. Insert into the female thread (6a) of the insulating spacer (6) and tighten the nut (11) to tighten the ripple spring (9).
Flex it as shown in Figure 2 and press it into a flat plate. The number of bolts to be attached is determined by the mechanical strength of the wedge with bolt holes (7) and the insulating spacer with internal threads (6) based on the reaction force required to suppress vibration of the winding.
ところで第２図のようにリップルバネ（９）を完全にた
わませた状態で楔係合部（８）を通すが、軸方向に巻線
（３）の高さの不均一を考慮して最大高さ位置より約０
．１＋ｍの間隙ができるように絶縁スペーサ（６）や楔
（７）の厚さを決定する。そしてこの状態でスロット（
２）に楔（７）を通し、ナツト（１１）を緩めてリップ
ルバネ（９）のたわみを復元させるととにより、巻線（
３）に押付は力を与える乙とができる。なお運転中は第
３図で示すようにボルトａ〔は取り除く。上記リップル
バネ（９）は巻線（３）の積上げた高さ寸法の変動分以
上にたわむことが可能でかつ剛性を高めることのできる
ガラス繊維強化プラスチックが望ましい。By the way, as shown in Figure 2, the ripple spring (9) is completely bent when passing through the wedge engaging part (8), but considering the uneven height of the winding (3) in the axial direction, the maximum Approximately 0 from the height position
．． The thickness of the insulating spacer (6) and wedge (7) is determined so that a gap of 1+m is created. And in this state, the slot (
Pass the wedge (7) through the winding wire (2) and loosen the nut (11) to restore the deflection of the ripple spring (9).
3) Pressing can give force. During operation, bolt a [is removed as shown in Figure 3]. The ripple spring (9) is preferably made of glass fiber-reinforced plastic that can be deflected by more than the variation in the stacked height of the windings (3) and that can increase rigidity.
なお上記実施例では、弾性体にリップルバネ（９）を使
用したが、これ以外□にうず巻形バネあるいは皿バネ形
状の弾性体を用いても同様の効果が得ら−れる。In the above embodiment, a ripple spring (9) is used as the elastic body, but the same effect can be obtained by using a spiral spring or a disk spring-shaped elastic body instead.
以上のようにこの発明では、楔（７）と絶縁スペーサ（
６）とをスロット］２）の外部でリップルバネ（９）の
ような弾性体を介して締付けた後、スロットの軸方向に
巻線（３）と間隙のある状態で挿入するようにしたので
、絶縁スペーサの厚さ調整が不要で容易に押入でき、し
かも装着後緩む事態はなくなり、巻線（３）を強固に固
定できる効果がある。As described above, in this invention, the wedge (7) and the insulating spacer (
6) and 2) are tightened via an elastic body such as a ripple spring (9) on the outside of slot 2), and then inserted in the axial direction of the slot with a gap between the wire and the winding (3). There is no need to adjust the thickness of the insulating spacer, and it can be easily inserted, and there is no possibility that the spacer will loosen after installation, and the winding (3) can be firmly fixed.
第１図はこの発明の一実施例による固定用の部材を示す
構成図、第２図は第１図の組立てを完了した断面図、第
３図はこの発明による巻線固定方法を示す断面図、第４
図は従来の巻線固定方法を示す断面図である。
図中、（１）は固定子鉄心、（２）はスロット、（３）
は巻線、（４）は絶縁被覆、（５）はスロットライナ、
（６）は絶縁スペーサ、（７）は楔、（８）は楔係合部
、（９）はりップルバネ、ＱＯＩはボルト、（１１）は
ナツトである。
尚、図中同一符号は同−又は相当部分を示す。FIG. 1 is a configuration diagram showing a fixing member according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the completed assembly shown in FIG. 1, and FIG. 3 is a cross-sectional view showing a winding fixing method according to the present invention. , 4th
The figure is a sectional view showing a conventional winding fixing method. In the figure, (1) is the stator core, (2) is the slot, and (3) is the stator core.
is the winding, (4) is the insulation coating, (5) is the slot liner,
(6) is an insulating spacer, (7) is a wedge, (8) is a wedge engaging portion, (9) is a beam spring, QOI is a bolt, and (11) is a nut. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
間に弾性体を介在させた状態でボルト締結して上記弾性
体を圧縮変形させてなる組立体を楔の係合部に挿入して
後、上記ボルトの締結を解除して上記弾性体の復元力に
より巻線に押付け力を得るようにしたことを特徴とする
回転電機の固定子巻線の固定方法。The wedge that engages with the wedge engagement part of the stator core and the insulating spacer are bolted together with an elastic body interposed between them, and the elastic body is compressed and deformed.The assembly is then attached to the wedge engagement part. A method for fixing a stator winding of a rotating electric machine, characterized in that after insertion, the bolts are unfastened so that a pressing force is applied to the winding by the restoring force of the elastic body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59263190A JPS61142946A (en) | 1984-12-13 | 1984-12-13 | Fixing method for stator winding for rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59263190A JPS61142946A (en) | 1984-12-13 | 1984-12-13 | Fixing method for stator winding for rotary electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61142946A true JPS61142946A (en) | 1986-06-30 |
Family
ID=17386018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59263190A Pending JPS61142946A (en) | 1984-12-13 | 1984-12-13 | Fixing method for stator winding for rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61142946A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0601827A1 (en) * | 1992-12-09 | 1994-06-15 | General Electric Company | Constrained ripple spring assembly and methods of installation |
| WO2001065664A1 (en) * | 2000-03-01 | 2001-09-07 | Abb Ab | Device for securing an electrical winding |
| KR20230069526A (en) * | 2021-11-12 | 2023-05-19 | 한전케이피에스 주식회사 | A steel wedges for coil pressing in slot of a rotor of generator |
-
1984
- 1984-12-13 JP JP59263190A patent/JPS61142946A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0601827A1 (en) * | 1992-12-09 | 1994-06-15 | General Electric Company | Constrained ripple spring assembly and methods of installation |
| WO2001065664A1 (en) * | 2000-03-01 | 2001-09-07 | Abb Ab | Device for securing an electrical winding |
| KR20230069526A (en) * | 2021-11-12 | 2023-05-19 | 한전케이피에스 주식회사 | A steel wedges for coil pressing in slot of a rotor of generator |
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