JPS58123351A - Manufacture of cylindrical rotor for rotary electric machine - Google Patents

Abstract

PURPOSE:To facilitate the formation of a plurality of field coils by avoiding an interference to a supporting shaft by winding a crossover track directly in two sets of adjacent coil holding grooves on one half peripheral surface of a cylindrical field core. CONSTITUTION:At least two, and three as one set in the indicated example, coil holding grooves g1-g12 are formed on each one-fourth of the peripheral surface of a cylindrical field core 2 substantially parallel to the bus direction. Then, crossover tracks l1-l6 are wound directly in the two sets of adjacent holding grooves g1-g12 on each one half of the peripheral surface of the core 2, thereby forming a plurality of field coils C1-C6 which cross obliquely at both end faces 2a, 2b of the core 2. Accordingly, a plurality of field coils C1-C6 can be readily formed by avoiding an interference to a supporting shaft 3.

Description

【発明の詳細な説明】 本発明は円筒形交流発電機、同期電動機等の回転電機に
用いられる円筒形回転子の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a cylindrical rotor used in a rotating electrical machine such as a cylindrical alternator or synchronous motor.

この種回転子は円筒形界磁鉄心と、それの外周面に巻装
される複数個の界磁コイルとを備えている。従来は界磁
鉄心に界磁コイルを巻装する場合、予め複数個の界磁コ
イルを余裕長を付与して形成し、それらを界磁鉄心の周
面に形成された、２本１組とする複数組のコイル保持溝
に１個宛嵌め、その後各界磁コイルの弛み部を界磁鉄心
の端面において整形固着して、それらを各コイル保持溝
に保持させているので、工数が多（作業が面倒で、また
各界磁コイルは、コイル保持溝への嵌込みを可能にする
ための余裕長さを持たなければならないことから必然的
に材料が嵩み、その上電気抵抗が増して性能が多少とも
低下するという不具合がある。This type of rotor includes a cylindrical field core and a plurality of field coils wound around the outer peripheral surface of the cylindrical field core. Conventionally, when winding field coils around a field core, a plurality of field coils are formed with a margin of length in advance, and then they are wrapped around the field core as a set of two. Each field coil is fitted one by one into multiple sets of coil holding grooves, and then the loose parts of each field coil are shaped and fixed on the end face of the field core to hold them in each coil holding groove, which requires a lot of man-hours. This is troublesome, and each field coil must have enough length to allow it to fit into the coil holding groove, which inevitably increases the material and increases electrical resistance, which impairs performance. There is a problem that it decreases to some extent.

本発明は上記に鑑み、円筒形界磁鉄心に直接導線を巻回
して複数個の界磁コイルを形成するようにして、前記不
具合を解消した、前記円筒形回転子の製造方法を提供す
ることを目的とする。In view of the above, the present invention provides a method for manufacturing the cylindrical rotor, which eliminates the above-mentioned problems by winding conductive wires directly around the cylindrical field core to form a plurality of field coils. With the goal.

以下、図面により本発明の一実施例について説明すると
、第１図は本発明により製造された円筒形回転子１を示
し、その回転子１は無数のケイ素鋼板を成層して形成さ
れた円筒形界磁鉄心２と、その周面の複数本のコイル保
持溝ｇ１〜ｇ１□に巻回された複数個の界磁コイルＣ１
〜Ｇ６　　と、界磁鉄心２の軸心に嵌着された支軸３と
を備えている。Hereinafter, one embodiment of the present invention will be described with reference to the drawings. Fig. 1 shows a cylindrical rotor 1 manufactured according to the present invention, and the rotor 1 has a cylindrical shape formed by layering numerous silicon steel plates. A field core 2 and a plurality of field coils C1 wound around a plurality of coil holding grooves g1 to g1□ on its circumferential surface.
~G6, and a support shaft 3 fitted onto the axis of the field iron core 2.

前記コイル保持溝！、〜９．ｔは界磁鉄心２の各４分の
１周面に、少なくとも２本、−水側では３本を１組とし
て母線方向と略平行に形成されており、また各２分の１
周面、即ち第２図において支軸３の軸線を通る水平面α
で分割される第１．示ｚ半第３コイル保持溝ｇ、〜ｙ３
と第４〜第６コイル保持溝ハ〜ｇ６　　および第７〜第
９コイル保持溝ｇ７〜ｇ。Said coil holding groove! ,~9. t is formed approximately parallel to the generatrix direction on each quarter circumferential surface of the field core 2, with at least two wires, and a set of three wires on the water side.
The peripheral surface, that is, the horizontal plane α passing through the axis of the support shaft 3 in FIG.
The first . Z half third coil holding groove g, ~y3
and fourth to sixth coil holding grooves c to g6, and seventh to ninth coil holding grooves g7 to g.

と第１０〜第１２コイル保持溝ｇｔｏ”ｙｔ２は、支軸
３の軸線を通り前記水平面αに直交する垂直面すに対し
てそれぞれ線対称の関係にある。and the tenth to twelfth coil holding grooves gto''yt2 are in a line-symmetrical relationship with respect to a vertical plane passing through the axis of the support shaft 3 and perpendicular to the horizontal plane α.

第１半部２．において各コイル保持溝！、〜３の対向す
る開口縁には、それぞれ第１．第２突縁４１＝４２が、
それらの先端間に所定の間隔を存して相対向して突設さ
れており、それら突縁４．。First half 2. Each coil retaining groove in! , . . . , . The second projecting edge 41=42 is
These protruding edges 4. .

４のうち垂直面すに近い第１突縁４１が第２突縁４２よ
りも長くなるように形成されている。第２半部２２にお
いても、各コイル保持溝ｇ７〜ｇ＋２の対向する開口縁
には同一形状の第１．第２突縁４、．４２が相対向して
形成されている。これら：１・ 突縁４１−４２は界磁コイル形成後界磁コイルＣ１〜Ｃ
６と各突縁４．，４．の間に打込まれるウェッジを保持
するもので、そのウェッジは回転子１０回転時各界磁コ
イルＣ１〜Ｃ０に作用する遠心力を支承する。4, a first protruding edge 41 closer to the vertical surface is formed to be longer than a second protruding edge 42. Also in the second half portion 22, the opposite opening edges of each coil holding groove g7 to g+2 have first grooves having the same shape. Second projecting edge 4, . 42 are formed facing each other. These: 1. The projecting edges 41-42 are the field coils C1 to C after the field coil is formed.
6 and each ridge 4. ,4. It holds a wedge that is driven in between, and this wedge supports the centrifugal force that acts on each field coil C1 to C0 when the rotor rotates 10 times.

界磁鉄心２に界磁コイルＣ８〜Ｃ６を形成する場合には
、第３．第４図に示すように界磁鉄心２を巻線機５の支
承台６の凹弧面Ｔ上に載置し、第１、第４コイル保持溝
！１ｓ！１＋　　の各第１突縁４．。When forming the field coils C8 to C6 on the field core 2, the third. As shown in FIG. 4, the field core 2 is placed on the concave arc surface T of the support base 6 of the winding machine 5, and the first and fourth coil holding grooves are aligned. 1s! 1+ each first projecting edge 4. .

４□の先端縁を、支承台６の面傾斜側面８，８と凹弧面
７のなす各稜部９，９に合致させる。そして界磁鉄心２
の周面を上方より昇降可能な押圧棒１０で押圧して、該
鉄心２を支承台６上に位置決めし、また開閉可能な一対
の導線案内部材１１，１１の各傾斜側面１２，１２の先
端を第１．第４コイル保持溝１１ｍ！１４　の各第２突
縁４□　、４２先端に合致させる。The tip edge of 4□ is matched with each ridge portion 9, 9 formed by the inclined side surfaces 8, 8 of the support base 6 and the concave arc surface 7. and field core 2
The core 2 is positioned on the support base 6 by pressing the circumferential surface of the iron core 2 from above with a press rod 10 that can be raised and lowered. First. 4th coil holding groove 11m! The second projecting edges 4□ and 42 of 14 are matched with the tips of 42.

そして導線ｔ、の端末を支軸３に巻回して固定し、その
導線Ｌ１　　を界磁鉄心２の前端面２ａ側より第１．第
２突縁４ｔ＝４を間に通して第１コイル保持溝ｙ、内に
入れ、導線り、に所定の張力を与える。次いで、支承台
６、押圧棒１０、両溝線案内部材１１等を一体に矢示ｄ
方向に回転させ、導線り、を第１コイル保持溝り１、界
磁鉄心２の後端面２ｈ、第４コイル保持溝９．および界
磁鉄心２の前端面２αの経路で界磁鉄心２に多数回巻回
し第１界磁コイルＣ１を形成する。この場合導線ｔ１は
支承台６の各傾斜側面８と各導線案内部材１１の各傾斜
側面１２の協働および支承台６の傾斜前。Then, the end of the conducting wire t is wound around the support shaft 3 and fixed, and the conducting wire L1 is connected to the first end from the front end surface 2a side of the field core 2. The second projecting edge 4t=4 is inserted into the first coil holding groove y, and a predetermined tension is applied to the conducting wire. Next, the support base 6, the pressing rod 10, the double-groove wire guide member 11, etc. are assembled together as shown by the arrow d.
The conductor is rotated in the direction of the first coil holding groove 1, the rear end surface 2h of the field core 2, and the fourth coil holding groove 9. The first field coil C1 is then wound around the field core 2 many times along the path of the front end surface 2α of the field core 2. In this case, the conductor t1 is connected to the cooperation between each inclined side surface 8 of the support base 6 and each inclined side surface 12 of each conductor guide member 11 and before the support base 6 is tilted.

後面１３．１４と各導線案内部材１１の傾斜前。Rear surface 13,14 and before tilting of each conductor guide member 11.

後面１５．１６の協働により、各コイル保持溝ｇ１＋１
４内に確実に案内され、導線り、の巻回作業が支軸３と
の干渉を避けてスムーズに行われる。また第１．第４コ
イル保持溝ｇ１＋ｆｆ４、において、導線Ｌ１が添わせ
られる側’４！１面より第１突縁４．が長く突出してい
るので、巻回された導線ｌ、が第１゜第４コイル保持溝
、９１ｙｇ４　　より食出すことが防止され、その結果
各コイル保持溝！１１ｍ！ｌ＋　　の対向する開口縁よ
り同一長さの突縁を、それらの先端間に前記と同一の間
隔を存して突設した場合に比べて各コイル保持溝４７＋
ｅ（１４内に多（の導線１１を収容することができる。By cooperation of the rear surfaces 15 and 16, each coil holding groove g1+1
4, and the winding work of the conductor can be carried out smoothly without interference with the support shaft 3. Also number 1. In the fourth coil holding groove g1+ff4, the first projecting edge 4. protrudes for a long time, so that the wound conductive wire l is prevented from protruding from the 1st and 4th coil holding grooves, 91yg4, and as a result, each coil holding groove! 11m! Each coil holding groove 47+
A large number of conducting wires 11 can be accommodated within e(14).

その後者導線案内部材ｉｔ、１１を開き、また押圧棒１
０を上昇させて、界磁鉄心２を第２図矢示Ｃ方向に回転
させて、今度は第２および第５コイル保持溝ｇ２ｓｌの
各第１突縁４ｔ−４ｔの先端縁を支承台６の各稜部９，
９に合致させる。そして界磁鉄心２の外周面を上方より
押圧棒１０で押圧して、該鉄心２を支承台６上に位置決
めし、また各導線案内部材ｉｉ、ｉｉの各傾斜側面１２
゜１２の先端を第２、第５コイル保持溝ｇ２１ハの・　
′）・ 各第２突縁４２．４□先端に合致させる。そして前記同
様に支承台６、押圧棒１０、両導線案内部線１２を第２
コイル保持溝！１、界磁鉄心２の後端面２ｂ、第５コイ
ル保持溝ハおよび界磁鉄心２の前端面２αの経路で界磁
鉄心２に多数回巻回し、界磁鉄心２の前、後両端面２α
、２ｈで第１界磁コイルＣ１と斜めに交差する第２界磁
コイルＣ２を形成する。Open the latter conductor guide member it, 11, and press rod 1
0 and rotate the field core 2 in the direction of arrow C in FIG. Each ridge 9 of
Match 9. Then, the outer circumferential surface of the field core 2 is pressed from above with a pressing rod 10 to position the core 2 on the support base 6, and each inclined side surface 12 of each conductor guide member ii, ii is pressed.
The tip of ゜12 is inserted into the second and fifth coil holding grooves g21c.
')・ Match the tip of each second projecting edge 42.4□. Then, in the same manner as above, the support base 6, the pressing rod 10, and both conductor guide wires 12 are connected to the second
Coil holding groove! 1. Wound around the field core 2 many times along the path of the rear end surface 2b of the field core 2, the fifth coil holding groove C, and the front end surface 2α of the field core 2, and both the front and rear end surfaces 2α of the field core 2 are wound.
, 2h, a second field coil C2 that diagonally intersects the first field coil C1 is formed.

さらに前記と同様の操作で第３．第６コイル保持溝ｇ３
ｓｇ６にも導線り、を多数回巻回し、界磁鉄心２の前、
後両端面２α、２ｂで第１．第２界磁コイルＣ１、Ｃ２
と斜めに交差する第３界磁コイルＣ３を形成する。Further, perform the same operation as above to perform the third step. 6th coil holding groove g3
The conductor wire is also wound around sg6 many times, and in front of the field core 2,
The first. Second field coil C1, C2
A third field coil C3 is formed which diagonally intersects with.

上記のように第１〜第３界磁コイルＣ１〜Ｃ３を形成し
た後、界磁鉄心２を反転させて、その第２半部２２の各
コイル保持溝Ｐ〜ダ、２に同様の操作で導線Ｌ４〜Ｌ６
　　を多数回巻回して第４〜第６界磁コイルＣ４〜Ｃ６
を形成する。After forming the first to third field coils C1 to C3 as described above, the field core 2 is reversed, and the respective coil holding grooves P to DA, 2 of the second half portion 22 are filled with the same operation. Conductor L4~L6
are wound many times to form the fourth to sixth field coils C4 to C6.
form.

なお、各コイル保持溝ハ〜５１２は母線方向に対して所
定の角度傾斜させて形成してもよく、この場合にはそれ
らコイル保持溝！、〜ｌ、２の第１．第２ｉ１１４１，
４ｔの先端にそれぞれ支承台６の稜部９および導線案内
部材１１の傾斜側面１２の先端を合致させるべ（、それ
らを傾斜させる。In addition, each coil holding groove 512 may be formed to be inclined at a predetermined angle with respect to the generatrix direction. , ~l, the first of 2. 2nd i1141,
The ridge 9 of the support base 6 and the tip of the inclined side surface 12 of the conductive wire guide member 11 should be aligned with the tip of the support base 6 (and inclined).

以上のように本発明によれば、円筒形界磁鉄心の各４分
の１周面に、少なくとも２本を１組とするコイル保持溝
を形成し、前記円筒形界磁鉄心の各２分の１周面に隣接
する２組の前記コイル保持　　　ｉ溝に渡り導線を直接
巻回することにより前記円筒形界磁鉄心の両端面で斜め
に交差する複数個の界磁コイルを形成するので、支軸と
の干渉を避けて複数個の界磁コイルの形成を容易に行う
ことができ、また導線はコイル保持溝内に密に巻回され
るので、界磁コイルに無用な弛み部が無く材料が少なく
て済み、電気抵抗を減少させて性能を向上させることか
できる。As described above, according to the present invention, coil holding grooves each having a set of at least two coils are formed in each quarter circumferential surface of the cylindrical field core, and each half of the cylindrical field core is By directly winding the conducting wire across the two sets of coil holding i-grooves adjacent to one peripheral surface of the cylindrical field core, a plurality of field coils diagonally intersecting on both end faces of the cylindrical field core are formed. Multiple field coils can be easily formed while avoiding interference with the support shaft, and since the conductor wire is tightly wound within the coil holding groove, there is no unnecessary slack in the field coil. It requires less material and can reduce electrical resistance and improve performance.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明により製造された円筒形回転子の斜視図
、第２図は円筒形界磁鉄心の正面図、第３図は巻線機の
正面図、第４図は第３図■矢示図である。 Ｃ１〜Ｃ６・・・界磁コイル、１１〜Ｌ６・・・導線、
！、〜ｌｕ・・・コイル保持溝、 １・・・円筒形回転子、２・・・界磁鉄心、２α・・・
前端酊、２ｈ・・・後端面。 特許出願人　　澤藤電機株式会社 第７図 第２図 第３図 −３（ 第４図Figure 1 is a perspective view of a cylindrical rotor manufactured according to the present invention, Figure 2 is a front view of a cylindrical field core, Figure 3 is a front view of a winding machine, and Figure 4 is Figure 3. It is an arrow diagram. C1 to C6...field coil, 11 to L6...conducting wire,
! , ~lu... Coil holding groove, 1... Cylindrical rotor, 2... Field core, 2α...
Front end drunk, 2h...rear end surface. Patent applicant Sawafuji Electric Co., Ltd. Figure 7 Figure 2 Figure 3-3 (Figure 4

Claims (1)

【特許請求の範囲】[Claims] 円筒形界磁鉄心の各４分の１周面に、少なくとも２本を
１組とするコイル保持溝を形成する工程と、前記円筒形
界磁鉄心の各２分の１周面で隣接する２輯の前記コイル
保持溝に渡り導線を直接巻回することにより前記円筒形
界磁鉄心の両端面で斜めに交差する複数個の界磁コイル
を形成する工桓と、よりなる回転電機用円筒形回転子の
製造方法。forming a set of at least two coil holding grooves on each quarter circumferential surface of the cylindrical field core; a cylindrical shape for a rotating electric machine, comprising: a method for forming a plurality of field coils diagonally intersecting on both end faces of the cylindrical field core by directly winding a conductor across the coil holding groove; Rotor manufacturing method.