JPS5942544B2 - Split rotor rim of salient pole type synchronous machine - Google Patents
Split rotor rim of salient pole type synchronous machineInfo
- Publication number
- JPS5942544B2 JPS5942544B2 JP2639177A JP2639177A JPS5942544B2 JP S5942544 B2 JPS5942544 B2 JP S5942544B2 JP 2639177 A JP2639177 A JP 2639177A JP 2639177 A JP2639177 A JP 2639177A JP S5942544 B2 JPS5942544 B2 JP S5942544B2
- Authority
- JP
- Japan
- Prior art keywords
- rotor rim
- block core
- salient pole
- synchronous machine
- pole type
- 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.)
- Expired
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Description
【発明の詳細な説明】 本発明は突極形同期機の分割式ロータリムに関する。[Detailed description of the invention] The present invention relates to a split rotor rim of a salient pole type synchronous machine.
従来の突極形同期機における分割式ロータリムは、例え
ば３分割式の場合、第１図に示すような構造となってい
る。The split rotor rim of a conventional salient pole type synchronous machine has a structure as shown in FIG. 1, for example, in the case of a three-split rotor rim.
すなわち、両端軸を含む塊状鉄心部分１，２と、これら
の間に配置された円筒状の塊状鉄心部分３とが、回転軸
を中心とする円周上に配列された複数個の締結ボルト４
にて一体に結合、組立てられ、このロータリムの外周上
に、一点鎖線で示す磁極５がダブテイル結合等の適当な
手段で取付けられている。That is, a plurality of fastening bolts 4 are arranged on a circumference centered around a rotating shaft, and a cylindrical lump core portion 3 is arranged between block core portions 1 and 2 including both end shafts, and a cylindrical block core portion 3 disposed between these core portions.
A magnetic pole 5, shown by a dashed line, is attached to the outer periphery of the rotor rim by suitable means such as dovetail coupling.
この際、各塊状鉄心部分１，２，３相互、間の接触面６
は、回転軸に対して直角な平面に形成され、また各塊状
鉄心部分の組立てを容易にすると共に、回転中にこれら
相互の接触面に滑りが生じないようにするため、内周部
分に互に嵌合する印ろう部７が設けられている。At this time, the contact surface 6 between each block core portion 1, 2, 3
are formed in a plane perpendicular to the axis of rotation, and are arranged on the inner periphery in order to facilitate the assembly of each block core part and to prevent slippage on their mutual contact surfaces during rotation. A dowel portion 7 is provided which fits into the dowel portion 7.
このように、従来の分割式ロータリムでは、各塊状鉄心
部分１，２．３の回転による半径方向の伸びの差を、接
触面６間の摩擦力と印ろう部１で保持しているのが普通
である。In this way, in the conventional split rotor rim, the difference in radial elongation caused by the rotation of each block core portion 1, 2.3 is maintained by the frictional force between the contact surfaces 6 and the solder joint portion 1. It's normal.
しかし、ロータリムの寸法が大形化し、回転速度が犬に
なると、前述のような接触面６の摩擦力と印ろう部７だ
けでは、十分に一体化を保てなくなり、半径方向に段差
がついてしまう。However, as the size of the rotor rim increases and the rotational speed increases, the frictional force of the contact surface 6 and the solder joint 7 as described above are no longer sufficient to maintain the integration, and a step occurs in the radial direction. Put it away.
その結果、ロータリムに振動が発生し、ひいては破損に
至る原因ともなる欠点があった。As a result, there is a drawback that vibration occurs in the rotor rim, which may even lead to damage.
本発明の目的は、上記した従来技術の欠点を除き、強度
的に安定した信頼性の高い突極形同期機の分割式ロータ
リムを提供するにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a split rotor rim for a salient pole type synchronous machine that is strong and stable and highly reliable, eliminating the drawbacks of the prior art described above.
この目的を達成するため、本発明は、一方の軸端部を含
む第１の塊状鉄心部材と、他方の軸端部を含む第２の塊
状鉄心部材と、これら第１および第２の塊状鉄心部材の
間に配置された少な（とも１個の部材からなる円筒状の
第３の塊状鉄心部材とを備え、第１および第３の塊状鉄
心部材間と第２および第３の塊状鉄心部材間を各別に複
数個の締結ボルトで結合した突極形同期機の分割式ロー
タリムにおいて、第１および第２の塊状鉄心部材と第３
の塊状鉄心部材との接触面のうちの少な（ともいずれか
一方の接触面の、少な（とも一部を、その外周側がロー
タリムの軸方向中心側に向かうように、回転軸方向と直
角な面に対して傾斜させることにより、第３の塊状鉄心
部材の外周方向へ飛び出そうとする力を利用して、各塊
状鉄心部材間の接触面におげろ面圧を犬にし、熱などに
よる回転軸方向の伸縮に影響されることな（強固に一体
化したことを特徴とする。To achieve this objective, the present invention provides a first block core member including one shaft end, a second block core member including the other shaft end, and the first and second block cores. a cylindrical third block core member disposed between the first and third block core members and between the second and third block core members; In a split rotor rim of a salient pole type synchronous machine in which the first and second block iron core members and the third
A small part of the contact surface with the blocky iron core member is made of a surface perpendicular to the rotational axis direction so that the outer circumferential side thereof faces toward the axial center of the rotor rim. By tilting the third block core member toward the outer periphery, the force of the third block core member being pushed out toward the outer periphery is used to create downward surface pressure on the contact surfaces between each block core member, thereby preventing the rotation axis due to heat, etc. Unaffected by directional expansion and contraction (characterized by being strongly integrated).
以下、本発明の一実施例を第２図について説明する。An embodiment of the present invention will be described below with reference to FIG.
図中、第１図と同一符号は同−物又は均等物を示す。In the figure, the same reference numerals as in FIG. 1 indicate the same or equivalent parts.
各塊状鉄心部分１，２．３が締結ボルト４にて一体に結
合、組立てられ、このロータリムの外周上に、一点鎖線
で示す磁極５が取付けられているのは、第１図に示した
従来構造と同様である。The structure in which the respective block core parts 1, 2.3 are connected and assembled together with fastening bolts 4, and the magnetic pole 5 shown by the dashed line is attached to the outer periphery of the rotor rim is different from the conventional method shown in FIG. The structure is similar.
このような構造の場合、回転に伴って生じる各塊状鉄心
部分１，２，３０半径方向変位は、軸端部を含む鉄心部
分１，２よりも中央部の円筒状をなす鉄心部分３の方が
大きくなり、前述したような段差が生じる。In the case of such a structure, the radial displacement of each block core portion 1, 2, 30 caused by rotation is more in the cylindrical core portion 3 at the center than in the core portions 1, 2 including the shaft ends. becomes larger, resulting in the step mentioned above.
そこで、本実施例では、各塊状鉄心部分１，２゜３間の
接触面の内、外周部分のみを回転軸方向に対して直角な
平面６Ａ、６Ｂに形成し、これらの間に位置する半径方
向の中央部分６Ｃは、その外周側がロータリムの軸方向
中心側に向かうように、すなわち塊状鉄心部分３の幅が
外周側に行くに従って狭（なるように、回転軸方向と直
角な面に対して傾斜させる。Therefore, in this embodiment, only the outer peripheral portions of the contact surfaces between the respective block core portions 1, 2゜3 are formed into planes 6A, 6B perpendicular to the rotation axis direction, and the radius The central portion 6C in the direction is arranged such that the outer circumferential side thereof is directed toward the center in the axial direction of the rotor rim, that is, the width of the block iron core portion 3 becomes narrower toward the outer circumferential side with respect to a plane perpendicular to the rotational axis direction. Tilt.
このような構造にすると、回転により中央部の塊状鉄心
部分３が両端の塊状鉄心部分１，２よりも外周方向に飛
び出そうとする力は、前記のように傾斜させた接触面６
Ｃに対して（さび効果を生じ、大ぎな面圧となって作用
すると共に、傾斜面６Ｃによって締結ボルト４の張力を
増大する。With such a structure, the force that tends to cause the central block core part 3 to protrude more toward the outer circumference than the block core parts 1 and 2 at both ends due to rotation is absorbed by the inclined contact surface 6 as described above.
(A rusting effect occurs and acts as a large surface pressure on C.), and the tension of the fastening bolt 4 is increased by the inclined surface 6C.
したがって、従来のような締結ボルト４の締付力のみに
よる摩擦力で一体化されていたものとは比べものになら
ない、強固な一体化構造が得られ、その剛性を向上する
ことかできる。Therefore, it is possible to obtain a strong integrated structure that is incomparable to the conventional structure in which the parts are integrated by frictional force caused only by the tightening force of the fastening bolt 4, and its rigidity can be improved.
しかも、単に接触面を傾斜面に形成するだけであるから
、その加工も容易であり、かつ熱などに起因する回転軸
方向の伸縮によって悪影響を受けることもない。Moreover, since the contact surface is simply formed into an inclined surface, it is easy to process and is not adversely affected by expansion and contraction in the rotational axis direction due to heat or the like.
なお、接触面の内、外周平面部分６Ａ、６Ｂは、傾斜面
６Ｃを機械加工する場合の基準面として利用したり、あ
るいは各塊状鉄心部分の軸方向の幅寸法の加工精度（傾
斜面の場合には加工精度が出に（い）を高める上から設
けられたもので、必ずしも設ける必要はなく、接触面全
体を傾斜面として形成してもよいことは勿論である。The outer circumferential flat portions 6A and 6B of the contact surfaces can be used as reference surfaces when machining the inclined surface 6C, or to improve the machining accuracy of the axial width dimension of each block core portion (in the case of an inclined surface). This is provided to improve machining accuracy, and it is not necessarily necessary to provide the contact surface.Of course, the entire contact surface may be formed as an inclined surface.
また、前記実施例では、本発明を３分割式のロータリム
に適用した場合について述べたが、本発明はこのような
ものに限らず、例えば第３図に示すような、５つの塊状
鉄心部分１，２，３Ａ。Further, in the above embodiment, a case has been described in which the present invention is applied to a three-divided rotor rim, but the present invention is not limited to such a rotor rim. For example, as shown in FIG. , 2, 3A.
３Ｂ 、３Ｃからなる５分割式のロータリムに適用でき
ることはいうまでもない。Needless to say, it can be applied to a five-segment rotor rim consisting of 3B and 3C.
以上説明したように、本発明によれば、回転中における
各塊状鉄心部材の半径方向の変位差を利用して各塊状鉄
心部材間の接触面におげろ面圧を大にするとともに、各
塊状鉄心部材間を結合する締結ボルトの張力を増大し、
熱などによる回転軸方向の伸縮に影響されることな（各
塊状鉄心部材を強固に一体化することかできるので、そ
の振動特性を向上して強度的に安定した信頼性の高い突
極形同期機の分割式ロータリムを提供することができる
。As explained above, according to the present invention, the difference in radial displacement of each block core member during rotation is utilized to increase the surface pressure on the contact surface between each block core member, and Increasing the tension of the fastening bolts that connect iron core members,
It is not affected by expansion and contraction in the direction of the rotating shaft due to heat, etc. (Since each block core member can be firmly integrated, its vibration characteristics are improved and the salient pole type synchronizer is stable in strength and highly reliable. The machine's split rotor rim can be provided.
第１図は従来の突極形同期機における３分割式ロータリ
ムの要部断面図、第２図は本発明の一実施例を示す突極
形同期機における３分割式ロータリムの要部断面図、第
３図は本発明の他の実施例を示す突極形同期機における
５分割式ロータリムの要部断面図である。
１．２・・・・・・軸端を含む塊状鉄心部分、３，３Ａ
。
３Ｂ 、 ３Ｃ・・・・・・中央部の塊状鉄心部分、４
・・・・・・締結ボルト、６Ａ、６Ｂ、６Ｃ・・・・・
・接触面の内周側平面部分、外周側平面部分、中央傾斜
部分。FIG. 1 is a sectional view of a main part of a three-part rotor rim in a conventional salient pole synchronous machine, and FIG. 2 is a sectional view of a main part of a three-part rotor rim in a salient pole synchronous machine according to an embodiment of the present invention. FIG. 3 is a sectional view of a main part of a five-segment rotor rim in a salient pole type synchronous machine showing another embodiment of the present invention. 1.2...Bloc core portion including shaft end, 3,3A
. 3B, 3C... Central blocky core part, 4
......Tightening bolt, 6A, 6B, 6C...
・Inner peripheral flat part, outer peripheral flat part, and central inclined part of the contact surface.
Claims (1)
軸端部を含む第２の塊状鉄心部材と、これら第１および
第２の塊状鉄心部材の間に配置された少なくとも１個の
部材からなる円筒状の第３の塊状鉄心部材とを備え、前
記第１および第３の塊状鉄心部材間と前記第２および第
３の塊状鉄心部材間を各別に複数個の締結ボルトで結合
した突極形同期機の分割式ロータリムにおいて、前記第
１および第２の塊状鉄心部材と前記第３の塊状鉄心部材
との接触面のうちの少なくともいずれか一方の接触面の
、少なくとも一部を、その外周側がロータリムの軸方向
中心側に向かうように、回転軸方向と直角な面に対して
傾斜させたことを特徴とする突極形同期機の分割式ロー
タリム。 ２、特許請求の範囲第１項において、前記接触面の内周
部分および外周部分を回転軸方向に対して直角な平面に
形成し、かつ半径方向の中央部分を回転軸方向と直角な
面に対して傾斜させたことを特徴とする突極形同期機の
分割式ロータリム。[Claims] 1. A first block core member including one shaft end, a second block core member including the other shaft end, and between these first and second block core members. a cylindrical third block core member made of at least one member disposed, and a plurality of separate blocks between the first and third block core members and between the second and third block core members. In the split rotor rim of a salient pole type synchronous machine connected by two fastening bolts, at least one of the contact surfaces of the first and second massive iron core members and the third massive iron core member. A split rotor rim of a salient pole type synchronous machine, characterized in that at least a part of the rotor rim is inclined with respect to a plane perpendicular to the rotation axis direction so that the outer peripheral side of the rotor rim faces toward the axial center side of the rotor rim. 2. In claim 1, the inner peripheral portion and the outer peripheral portion of the contact surface are formed into a plane perpendicular to the direction of the rotation axis, and the central portion in the radial direction is formed into a plane perpendicular to the direction of the rotation axis. A split rotor rim of a salient pole type synchronous machine, which is characterized by being tilted to the opposite side.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2639177A JPS5942544B2 (en) | 1977-03-10 | 1977-03-10 | Split rotor rim of salient pole type synchronous machine |
| US05/880,952 US4169235A (en) | 1977-03-10 | 1978-02-24 | Electric motor with a built-up type rotor using tapered sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2639177A JPS5942544B2 (en) | 1977-03-10 | 1977-03-10 | Split rotor rim of salient pole type synchronous machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53111404A JPS53111404A (en) | 1978-09-29 |
| JPS5942544B2 true JPS5942544B2 (en) | 1984-10-16 |
Family
ID=12192230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2639177A Expired JPS5942544B2 (en) | 1977-03-10 | 1977-03-10 | Split rotor rim of salient pole type synchronous machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5942544B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6049335A (en) * | 1983-08-29 | 1985-03-18 | Fuji Photo Film Co Ltd | Silver halide color photosensitive material |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59213252A (en) * | 1983-05-17 | 1984-12-03 | Mitsubishi Electric Corp | Ac rotary electric machine for driving rolling mill |
| JP2008289286A (en) * | 2007-05-17 | 2008-11-27 | Mitsubishi Electric Corp | Permanent magnet type electric rotating machine, rotor, and manufacturing method for rotor |
-
1977
- 1977-03-10 JP JP2639177A patent/JPS5942544B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6049335A (en) * | 1983-08-29 | 1985-03-18 | Fuji Photo Film Co Ltd | Silver halide color photosensitive material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53111404A (en) | 1978-09-29 |
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