JP2002295500A - Detent device - Google Patents
Detent deviceInfo
- Publication number
- JP2002295500A JP2002295500A JP2001097710A JP2001097710A JP2002295500A JP 2002295500 A JP2002295500 A JP 2002295500A JP 2001097710 A JP2001097710 A JP 2001097710A JP 2001097710 A JP2001097710 A JP 2001097710A JP 2002295500 A JP2002295500 A JP 2002295500A
- Authority
- JP
- Japan
- Prior art keywords
- key
- ridge
- gap
- rotor
- elastic member
- 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
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、回転体とそれに付
設される部材間の回り止め装置に関し、特に溝と凸条と
の嵌め合わせ構造における周方向の遊びを除去する技術
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing rotation between a rotating body and a member attached thereto, and more particularly to a technique for removing circumferential play in a fitting structure of a groove and a ridge.
【０００２】[0002]
【従来の技術】従来、電動機ロータシャフト等の回転体
に該電動機の磁極位置や回転速度を検出するためのセン
サロータ等の付設体を固定する場合、両者の間にキーに
よる回り止めを施したうえで、圧入リングで挟みつける
ことで軸方向止めする方法が用いられていた。しかし、
このような方法では、キー突起とキー溝との間に微小な
がら隙間が形成されるのを避けがたく、周方向のがたつ
きを生じることがあった。このような場合、センサによ
る電動機回転角度、回転数情報検知精度が低下してしま
い、回転数の制御に悪影響を及ぼす可能性があるため、
センサロータのがたつきをなくす必要があった。2. Description of the Related Art Conventionally, when an attached body such as a sensor rotor for detecting a magnetic pole position and a rotation speed of an electric motor is fixed to a rotating body such as an electric motor rotor shaft, a detent is provided between the both by a key. Above, the method of stopping in the axial direction by pinching with a press-fit ring has been used. But,
In such a method, it is inevitable that a small gap is formed between the key projection and the key groove, and in some cases, rattling in the circumferential direction may occur. In such a case, the accuracy of detecting the rotation angle of the motor and the rotation speed information by the sensor is reduced, which may adversely affect the control of the rotation speed.
It was necessary to eliminate rattling of the sensor rotor.
【０００３】[0003]
【発明が解決しようとする課題】この点を考慮し、セン
サロータをシャフトに圧入で固定する方法、嵌合部を接
着剤で固定する方法、センサロータを接着剤でスリーブ
に固定し、これをシャフトに圧入する方法も実施されて
いるが、これらの方法ではセンサロータ原点の機械的位
置決めが困難であり、また圧入や接着剤の収縮により、
センサの精度、信頼性に対して有害な歪みを生じること
もある。以上のことから、がたつきがなく、機械的位置
決めが容易で、センサロータに歪みを発生しない固定方
法が求められていた。In consideration of this point, a method of fixing the sensor rotor to the shaft by press-fitting, a method of fixing the fitting portion with an adhesive, and fixing the sensor rotor to the sleeve with an adhesive are used. Although methods of press-fitting to the shaft have also been implemented, these methods make it difficult to mechanically position the sensor rotor origin, and due to press-fitting and shrinkage of the adhesive,
A harmful distortion may be caused to the accuracy and reliability of the sensor. In view of the above, there has been a demand for a fixing method that has no backlash, facilitates mechanical positioning, and does not generate distortion in the sensor rotor.
【０００４】そこで、本発明は、回転方向の遊びがな
く、相互の位置決めが容易で、嵌め合わせによる歪みが
生じることのない、広く一般的な固着に適用可能な回り
止め装置を提供することを目的とする。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a detent device which has no play in the rotational direction, is easily positioned relative to each other, and is free from distortion due to fitting, and which can be applied to wide and general fixing. Aim.
【０００５】[0005]
【課題を解決するための手段】上記の目的は、回転体
と、該回転体に回り止め固定される付設体とから成り、
回転体と付設体のいずれか一方に形成され、凹入する軸
線方向のキー溝に、他方に形成され、突出する軸線方向
のキー凸条を嵌め合わせて相対回転不能に固定する回り
止め装置において、前記キー溝はキー凸条より幅広に構
成され、それらの間に形成される隙間に、自由形状が隙
間の幅より広い弾性部材が圧縮状態に配設された構成に
より達成される。SUMMARY OF THE INVENTION The object described above comprises a rotating body and an attached body which is fixedly secured to the rotating body.
A detent device that is formed on one of the rotating body and the attached body and fitted into a recessed axial keyway and the other with a protruding axial key ridge formed on the other and fixed so that it cannot be relatively rotated. The key groove is configured to be wider than the key ridge, and the elastic member having a free shape wider than the width of the gap is provided in a compressed state in a gap formed therebetween.
【０００６】上記の構成において、前記キー凸条に隣接
させて該キー凸条の突出方向とは逆方向に凹入する凹条
が形成され、前記弾性部材は、前記隙間と凹条とに跨っ
て配設される構成とすると更に有効である。[0006] In the above structure, a concave ridge is formed adjacent to the key ridge in a direction opposite to a direction in which the key ridge protrudes, and the elastic member straddles the gap and the concave ridge. It is more effective to adopt a configuration in which the components are arranged.
【０００７】具体的には、前記弾性部材は、板バネ素材
からなるスプリングピンで構成されるのが有効である。More specifically, it is effective that the elastic member is constituted by a spring pin made of a leaf spring material.
【０００８】更に、前記スプリングピンは、断面長円形
の外形を有し、短径方向を前記隙間の幅方向に向けて配
置されるのが有効である。Further, it is effective that the spring pin has an outer shape with an oblong cross section, and is arranged with its short diameter direction oriented in the width direction of the gap.
【０００９】この場合、前記スプリングピンは、長径方
向の平面部分の一方にスリットを有し、該スリットを有
する平面部分を前記キー凸条に当接させて配設されるの
が望ましい。In this case, it is desirable that the spring pin has a slit in one of the flat portions in the major diameter direction, and the flat portion having the slit is disposed in contact with the key ridge.
【００１０】前記いずれかの構成において、前記回転体
は、電動機のロータシャフトであり、前記付設体は、電
動機ロータの磁極位置を検出するセンサのロータである
ものとして適用することができる。In any of the above configurations, the rotating body may be a rotor shaft of a motor, and the attached body may be applied as a rotor of a sensor for detecting a magnetic pole position of the motor rotor.
【００１１】[0011]
【発明の作用及び効果】本発明の請求項１に記載の構成
では、キー溝の隙間に嵌めた弾性部材が、自身の弾性に
より隙間をなくす遊びの除去と、回転体と付設体相互の
ずれ戻しの作用をする。したがって、この構成によれ
ば、嵌め合いによる歪みを生じさせない溝とキーによる
回り止め構造において、嵌め合い部の遊びをなくすこと
ができる。しかも、位置決めがずれた場合にも、回転体
と付設体相互の位置関係を原位置に自動復帰させ、当初
の位置決め状態を保つことができる。According to the structure of the first aspect of the present invention, the elastic member fitted in the gap of the key groove eliminates play to eliminate the gap by its own elasticity, and shifts between the rotating body and the attached body. It acts as a return. Therefore, according to this configuration, play of the fitting portion can be eliminated in the detent structure using the key and the groove that does not cause distortion due to the fitting. In addition, even when the positioning is shifted, the positional relationship between the rotating body and the attached body is automatically returned to the original position, and the initial positioning state can be maintained.
【００１２】次に、請求項２に記載の構成では、弾性部
材が回転体と付設体のいずれか一方に凹条で嵌り込み、
自身の弾性により保持されるため、隙間内での弾性部材
の姿勢変化が防止される。したがって弾性部材の傾き等
の姿勢変化による位置決めのずれがなくなる。Next, in the structure according to the second aspect, the elastic member is fitted into one of the rotating body and the attached body with a concave strip,
Since the elastic member is held by its own elasticity, the posture change of the elastic member in the gap is prevented. Therefore, there is no positioning deviation due to a change in posture such as the inclination of the elastic member.
【００１３】次に、請求項３に記載の構成では、弾性部
材の組付け時の弾性変形が形状変化によりなされるた
め、隙間への弾性部材の組込みが容易になる。Next, in the structure according to the third aspect, since the elastic deformation at the time of assembling the elastic member is performed by changing the shape, the assembling of the elastic member into the gap becomes easy.
【００１４】更に、請求項４に記載の構成では、弾性部
材が径方向に一定の長さのある平面でキー溝とキー凸条
とに当接するため、位置決め精度が向上する。Further, in the structure according to the fourth aspect, since the elastic member abuts the key groove and the key ridge on a plane having a certain length in the radial direction, the positioning accuracy is improved.
【００１５】更に、請求項５に記載の構成では、回転体
と付設体が相互に位置ずれして弾性部材の隙間に嵌る側
が圧縮変形しても、凹条に嵌る側では、弾性部材が自身
の弾性により一定の弾力で凹条に圧接する負荷状態が維
持されるため、回転体と付設体相互の位置ずれによる隙
間内での弾性部材の姿勢変化が防止される。Further, in the configuration according to the fifth aspect, even if the rotating body and the attached body are displaced from each other and the side fitted in the gap of the elastic member is compressed and deformed, the elastic member itself is fitted on the side fitted in the concave strip. Due to the elasticity of the elastic member, a load state in which the elastic member is pressed against the concave streak with a certain elasticity is maintained, so that a change in the posture of the elastic member in the gap due to a displacement between the rotating body and the attached body is prevented.
【００１６】また、請求項６に記載の構成では、電動機
ロータの磁極位置に対するセンサロータの位置を簡単に
機械的位置決めすることができる。しかも、慣性質量に
大きな違いがあることで、急激な回転数変化が生じたと
きに電動機ロータの磁極位置に対するセンサロータの位
置に過渡的なずれが生じても、弾性部材の戻り力により
自動的に当初の位置決め状態に復帰することができる。Further, according to the configuration of the sixth aspect, the position of the sensor rotor with respect to the magnetic pole position of the motor rotor can be easily mechanically positioned. In addition, due to the large difference in the inertial mass, even if there is a transient shift in the position of the sensor rotor with respect to the magnetic pole position of the motor rotor when a sudden change in rotation speed occurs, the return force of the elastic member automatically Can be returned to the initial positioning state.
【００１７】[0017]
【発明の実施の形態】以下、図面に沿い、本発明の実施
形態を説明する。図１は本発明の回り止め装置の構成
を、周面を平面に展開した断面図で示す。この装置は、
回転体Ａと、該回転体Ａに回り止め固定される付設体Ｂ
とから成り、回転体Ａと付設体Ｂのいずれか一方（本形
態において回転体Ａ）の外周面に形成され、該外周面か
ら凹入する軸線方向の溝Ｃに、他方（付設体Ｂ）の内周
面に形成され、該内周面から突出する軸線方向の凸条Ｄ
を嵌め合わせて相対回転不能に固定する回り止め装置を
構成する。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a configuration of a rotation preventing device according to the present invention, in which a peripheral surface is flattened. This device is
A rotating body A and an attached body B which is fixed to the rotating body A to prevent rotation
And formed on the outer circumferential surface of one of the rotating body A and the attached body B (the rotating body A in the present embodiment), and the other (the attached body B) in the axial groove C recessed from the outer circumferential surface. Axially extending ridge D formed on the inner peripheral surface of the
To form a detent device which is fixed so as not to rotate relatively.
【００１８】本発明に沿い、溝Ｃは凸条Ｄより幅広に構
成され、それらの間に形成される隙間Ｅに、自由形状が
隙間Ｅの幅より広い弾性部材Ｆが圧縮状態に配設されて
いる。更に、凸条Ｄに隣接させて内周面から凸条Ｄの突
出方向とは逆方向に凹入する凹条Ｇが形成され、弾性部
材Ｆは、隙間Ｅと凹条Ｇとに跨って配設されている。According to the present invention, the groove C is formed wider than the ridge D, and an elastic member F whose free shape is wider than the width of the gap E is arranged in a compressed state in a gap E formed therebetween. ing. Further, a concave ridge G is formed adjacent to the convex ridge D and recessed from the inner peripheral surface in a direction opposite to the direction in which the convex ridge D protrudes, and the elastic member F is disposed over the gap E and the concave ridge G. Has been established.
【００１９】図２は本形態における弾性部材Ｆの具体的
構造を側面（Ａ）と正面（Ｂ）で示す。弾性部材Ｆは、
板バネ素材からなるスプリングピンで構成される。スプ
リングピンＦは、図１に示すキー溝Ｃの長さ（図１にお
いて紙面の奥行き方向の長さ）に対応する長さ（図２の
（Ａ）において横方向の長さ）とされ、図２の（Ｂ）に
示すように、全長に渡り断面長円形の外形を有し、長径
方向の２つの平面部分Ｆ１，Ｆ２（Ｆ２’）の一方の実
質***部にピンＦの全長に及ぶスリットＦ３を有す
る。要すれば、スプリングピンＦは扁平なＣ字状断面の
弾性部材を構成する。FIG. 2 shows a specific structure of the elastic member F in the present embodiment in a side view (A) and a front view (B). The elastic member F is
It is composed of a spring pin made of a leaf spring material. The spring pin F has a length (length in the horizontal direction in FIG. 2A) corresponding to the length of the key groove C shown in FIG. 1 (length in the depth direction of the paper surface in FIG. 1). As shown in FIG. 2 (B), it has an outer shape with a cross-sectionally elliptical shape over the entire length, and extends over substantially the entire length of the pin F substantially at the center of one of the two flat portions F1 and F2 (F2 ′) in the major diameter direction. It has a slit F3. If necessary, the spring pin F constitutes an elastic member having a flat C-shaped cross section.
【００２０】こうした構成からなるスプリングピンＦ
は、短径方向を前記隙間Ｅの幅方向に向け、かつ、スリ
ットＦ３を有する側の平面部分をキー凸条Ｄに当接させ
て、適宜の圧縮負荷状態に配設される。この形態では、
キー凸条Ｄの隙間Ｅに面する側の側面が凹条Ｇの一方の
側面と同じ面位置にあるため、平面部分のスリットＦ３
を挟む一方の端部Ｆ２がキー凸条Ｄ側の側面に圧接し、
他方の端部Ｆ２’が凹条Ｇ側の側面に圧接する配置とな
る。こうした配置を採ることで、回転体Ａと付設体Ｂに
相対回転負荷が作用し、キー溝Ｃとキー凸条Ｄが相対的
に回転方向（図示横方向）にずれる動きが生じた場合、
隙間Ｅの幅が狭まることでスプリングピンＦの隙間Ｅに
嵌る側が回転方向に圧縮されてバネ弾性を発揮し、この
力が回転負荷の解放により該負荷に打ち勝つ状態になる
と原位置に復帰させる作用をする。この際、スプリング
ピンＦの凹条Ｇに嵌る側は、当初の設定負荷状態にある
ことで、スプリングピンＦの姿勢を保つ作用をする。こ
れによりスプリングピンＦの自身の軸回りの回転が防止
される。The spring pin F having such a configuration
Are arranged in an appropriate compressive load state with the short diameter direction oriented in the width direction of the gap E and the flat portion on the side having the slit F3 abutting on the key ridge D. In this form,
Since the side surface of the key ridge D facing the gap E is located at the same surface position as one side surface of the concave ridge G, the slit F3 of the flat portion is formed.
Is pressed against the side surface on the side of the key ridge D,
The other end F2 'is arranged so as to be in pressure contact with the side surface on the concave strip G side. By adopting such an arrangement, when a relative rotational load acts on the rotating body A and the attached body B, and the key groove C and the key ridge D are relatively displaced in the rotational direction (lateral direction in the drawing),
When the width of the gap E is reduced, the side of the spring pin F that fits in the gap E is compressed in the rotational direction to exhibit spring elasticity. When this force overcomes the load by releasing the rotational load, the spring pin F returns to the original position. do. At this time, the side of the spring pin F that fits into the concave strip G acts to maintain the posture of the spring pin F in the initially set load state. This prevents the spring pin F from rotating around its own axis.
【００２１】なお、こうした構成からなる回り止め装置
のキー溝Ｃと、キー凸条Ｄと、弾性部材Ｆとは、必要に
応じて、回転体Ａ及び付設体Ｂの周方向に複数配置する
こともできる。The key groove C, the key ridge D, and the elastic member F of the rotation preventing device having such a configuration are arranged in a plurality in the circumferential direction of the rotating body A and the attached body B as necessary. Can also.
【００２２】次に、本発明を回転体Ａを電動機のロータ
シャフトとし、付設体Ｂをセンサのロータとして適用し
た具体例を説明する。Next, a specific example in which the present invention is applied to a case where the rotating body A is used as a rotor shaft of an electric motor and the attached body B is used as a rotor of a sensor will be described.
【００２３】図３は回転センサを組込んだ電動機の全体
断面を示す。この形態において３相交流モータとされた
電動機は、そのステータ１の外周をケース２の外筒部２
ａに嵌合させて心出しされ、通しボルト３により端壁部
２ｂに締結されて回り止め固定されている。ステータ１
内で回転するロータ４は、積層コア４ａの内周をシャフ
ト５にキー止め嵌合させて周り止めされ、両端を端板４
ｂで挟んで、シャフト５から張出すフランジ部５ａとシ
ャフト５にねじ込んだナット６との間で締結されて軸方
向止めされている。ロータ４を支持するシャフト５は、
回転センサ７を組込んだ側の端部をベアリング８Ｂを介
してケース２の軸通し孔内に支持され、他端をケース２
の開口側を覆うカバー９の軸通し孔内にベアリング８Ａ
を介して支持されている。FIG. 3 shows an entire cross section of a motor incorporating a rotation sensor. In this embodiment, an electric motor which is a three-phase AC motor has an outer periphery of a stator 1 and an outer cylindrical portion 2 of a case 2.
a, and is centered by being fitted to a, and is fastened to the end wall portion 2b by the through bolt 3 to be prevented from rotating. Stator 1
The rotor 4 rotating within the rotor 4 is locked around the inner periphery of the laminated core 4a by keying and fitting to the shaft 5, and has both ends at the end plates 4a and 4b.
b, the flange portion 5a extending from the shaft 5 and the nut 6 screwed into the shaft 5 are fastened and axially stopped. The shaft 5 supporting the rotor 4 is
The end on which the rotation sensor 7 is incorporated is supported in a shaft through hole of the case 2 via a bearing 8B, and the other end is connected to the case 2.
Bearing 8A in the shaft through hole of cover 9 covering the opening side of
Is supported through.
【００２４】回転センサを構成するＶＲ型レゾルバ（以
下、レゾルバと表記する）７は、そのステータ７ａの外
周をケース内筒部２ｃの切欠きに嵌合させて心出しさ
れ、通しボルト１０により内筒部２ｃの端面に回り止め
固定されている。ステータ７ａ内で回転するロータ７ｂ
は、その一端側をシャフト５から張出すフランジ部５ａ
に当接させ、他端側をシャフト５に圧入させた圧入リン
グ１１に当接させて軸方向止めされている。ロータ７ｂ
のシャフト５に対する回り止めは、前述の回り止め構成
によりなされている。A VR type resolver (hereinafter, referred to as a resolver) 7 constituting the rotation sensor is centered by fitting an outer periphery of a stator 7a into a notch of the case inner cylindrical portion 2c, and is centered by a through bolt 10. It is fixed to the end face of the cylindrical portion 2c so as not to rotate. Rotor 7b rotating in stator 7a
Is a flange portion 5a projecting one end side from the shaft 5.
, And the other end is brought into contact with a press-fit ring 11 press-fit into the shaft 5 to be axially stopped. Rotor 7b
Of the shaft 5 with respect to the shaft 5 is made by the above-described rotation preventing structure.
【００２５】図４は図３をＩＶ−ＩＶ矢視方向にみたレ
ゾルバの構造を示す。レゾルバロータ７ｂは、その外周
が回転角度位置検出のために周方向に波状の凹凸７０を
備える構成とされ、凹凸による鉄心間の距離をレゾルバ
ステータ７ａ側の検出コイル７２で検知する構造とされ
ている。この形態では、レゾルバステータ７ａをケース
２に固定する通しボルト１０の１つの孔７３の角度位置
をステータ側のレゾルバ原点とし、この原点の角度位置
に、凹凸７０の山部７１の１つが合うようにレゾルバロ
ータのキー凸条Ｄとそれに隣接する凹条Ｇが形成されて
いる。すなわち、レゾルバロータのキー凸条Ｄの一方の
面と、それに連続する凹条Ｇの一方の面が共通平面とさ
れ，キー凸条Ｄの幅と凹条Ｇの幅を合わせた中央がロー
タ側のレゾルバ原点とされている。言い換えれば、溝Ｃ
の中央がレゾルバ原点と一致する構成とされている。一
方、図示されていないが、シャフト５のキー溝Ｃは、モ
ータロータ４の隣り合う一対のＮ−Ｓ磁極間の中央位置
と一致する設定とされている。なお、本形態における角
度方向の位置決めは、機械的な位置設定のためのもので
あり、モータロータ４の電気的な磁極位置とレゾルバ７
の検出出力との精密な原点合わせは、別途電気的な調整
によりなされる。FIG. 4 shows the structure of the resolver when FIG. 3 is viewed in the direction of arrows IV-IV. The resolver rotor 7b has a configuration in which its outer periphery is provided with wavy irregularities 70 in the circumferential direction for detecting a rotational angle position, and has a structure in which the distance between the iron cores due to the irregularities is detected by the detection coil 72 on the resolver stator 7a side. I have. In this embodiment, the angular position of one hole 73 of the through bolt 10 for fixing the resolver stator 7a to the case 2 is defined as the resolver origin on the stator side, and one of the peaks 71 of the unevenness 70 matches the angular position of the origin. Are formed with a convex ridge D of the resolver rotor and a concave ridge G adjacent thereto. That is, one surface of the key ridge D of the resolver rotor and one surface of the concave ridge G continuous thereto are a common plane, and the center of the width of the key ridge D and the width of the concave G is the rotor side. Is the origin of the resolver. In other words, the groove C
Is configured to coincide with the resolver origin. On the other hand, although not shown, the key groove C of the shaft 5 is set to coincide with the center position between a pair of adjacent NS poles of the motor rotor 4. Note that the positioning in the angular direction in the present embodiment is for setting the mechanical position, and the electric magnetic pole position of the motor rotor 4 and the resolver 7.
The precise origin alignment with the detection output of is performed by separate electrical adjustment.
【００２６】以上詳述したように、この実施形態によれ
ば、キー溝Ｃの隙間Ｅに嵌めたスプリングピンＦが、自
身の弾性により隙間をなくす遊びの除去と、ロータシャ
フト５とレゾルバロータ７ｂ相互のずれ戻しの作用をす
る。したがって、これにより、嵌め合いによる歪みを生
じさせない溝とキーによる回り止め構造において、嵌め
合い部の遊びをなくすことができる。しかも、位置決め
がずれた場合にも、ロータシャフト５とレゾルバロータ
７ｂ相互の位置関係を原位置に自動復帰させ、当初の位
置決め状態を保つことができる。As described in detail above, according to this embodiment, the spring pin F fitted in the gap E of the key groove C eliminates the play of eliminating the gap by its own elasticity, and the rotor shaft 5 and the resolver rotor 7b It acts as a mutual shift back. Therefore, in this, in the detent structure by the groove and the key that does not cause distortion due to the fitting, play of the fitting portion can be eliminated. Moreover, even when the positioning is shifted, the positional relationship between the rotor shaft 5 and the resolver rotor 7b is automatically returned to the original position, and the initial positioning state can be maintained.
【００２７】また、スプリングピンＦがレゾルバロータ
７ｂに凹条Ｇで嵌り込み、自身の弾性により保持される
ため、隙間Ｅ内でのスプリングピンＦの姿勢変化が防止
される。したがってスプリングピンＦの傾き等の姿勢変
化による位置決めのずれがなくなる。Further, since the spring pin F is fitted into the resolver rotor 7b with the groove G and is held by its own elasticity, the posture change of the spring pin F in the gap E is prevented. Therefore, there is no positioning deviation due to a change in posture such as the inclination of the spring pin F.
【００２８】更に、スプリングピンＦの組付け時の弾性
変形が扁平なＣ字状断面の短径の縮小によりなされるた
め、隙間ＥへのスプリングピンＦの組込みが容易にな
る。しかも、スプリングピンＦが径方向に一定の長さの
ある平面でキー溝Ｃとキー凸条Ｄとに当接するため、位
置決め精度が向上する。更に、ロータシャフト５とレゾ
ルバロータ７ｂが相互に位置ずれしてスプリングピンＦ
の隙間Ｅに嵌る側が圧縮変形しても、凹条Ｇに嵌る側で
は、スプリングピンＦが自身の弾性により一定の弾力で
凹条Ｇに圧接する負荷状態が維持されるため、ロータシ
ャフト５とレゾルバロータ７ｂ相互の位置ずれによる隙
間Ｅ内でのスプリングピンＦの姿勢変化が防止される。Further, since the elastic deformation of the spring pin F at the time of assembling is performed by reducing the short diameter of the flat C-shaped cross section, the spring pin F can be easily incorporated into the gap E. Moreover, since the spring pin F abuts the key groove C and the key ridge D on a plane having a certain length in the radial direction, the positioning accuracy is improved. Further, the rotor shaft 5 and the resolver rotor 7b are displaced from each other, and the spring pins F
Even if the side that fits in the gap E is compressed and deformed, the load state in which the spring pin F presses against the concave strip G with a certain elasticity due to its own elasticity is maintained on the side that fits in the concave strip G. A change in the attitude of the spring pin F in the gap E due to a positional shift between the resolver rotors 7b is prevented.
【００２９】かくして、電動機ロータ４の磁極位置に対
するセンサロータ７ｂの位置を簡単に機械的位置決めす
ることができる。しかも、慣性質量に大きな違いがある
ことで、急激な回転数変化が生じたときに電動機ロータ
４の磁極位置に対するセンサロータ７ｂの位置に過渡的
なずれが生じても、弾性部材Ｆの戻り力により自動的に
当初の位置決め状態に復帰することができる。Thus, the position of the sensor rotor 7b with respect to the magnetic pole position of the motor rotor 4 can be easily mechanically positioned. In addition, since there is a large difference in the inertial mass, even if a transient shift occurs in the position of the sensor rotor 7b with respect to the magnetic pole position of the electric motor rotor 4 when a sudden change in the rotational speed occurs, the return force of the elastic member F can be obtained. Thereby, it is possible to automatically return to the initial positioning state.
【００３０】以上、本発明を実施形態に基づき詳説した
が、本発明はこれらの実施形態に限るものではなく、特
許請求の範囲に記載の事項の範囲内で種々に具体的構成
を変更して実施することができる。As described above, the present invention has been described in detail based on the embodiments. However, the present invention is not limited to these embodiments, and various concrete configurations may be changed within the scope of the claims. Can be implemented.
【図１】本発明の回り止め装置を周面を平面に展開して
示す断面図である。FIG. 1 is a sectional view showing a rotation preventing device according to the present invention by developing a peripheral surface into a plane.
【図２】弾性部材の具体的構成を示す図面であり、
（Ａ）は側面図、（Ｂ）は正面図である。FIG. 2 is a drawing showing a specific configuration of an elastic member;
(A) is a side view, (B) is a front view.
【図３】本発明を電動機に適用した実施形態の全体断面
図である。FIG. 3 is an overall sectional view of an embodiment in which the present invention is applied to a motor.
【図４】実施形態のレゾルバの正面図である。FIG. 4 is a front view of the resolver of the embodiment.
Ａ 回転体 Ｂ 付設体 Ｃ キー溝 Ｄ キー凸条 Ｆ スプリングピン（弾性部材） Ｆ３ スリット Ｇ 凹条 ５ ロータシャフト ７ レゾルバ（センサ） ７ｂ レゾルバロータ A Rotating body B Attached body C Key groove D Key ridge F Spring pin (elastic member) F3 Slit G Recess 5 Rotor shaft 7 Resolver (sensor) 7b Resolver rotor
───────────────────────────────────────────────────── フロントページの続き (72)発明者 篠原 敬一 愛知県安城市藤井町高根10番地 アイシ ン・エィ・ダブリュ株式会社内 Ｆターム(参考） 2F077 AA00 CC02 FF34 PP26 VV01 VV23 VV31 5H611 AA01 BB01 PP01 QQ06 RR01 UA01 UA07 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Keiichi Shinohara 10th Takane, Fujiimachi, Anjo-shi, Aichi F-term (reference) in Aisin AW Co., Ltd. 2F077 AA00 CC02 FF34 PP26 VV01 VV23 VV31 5H611 AA01 BB01 PP01 QQ06 RR01 UA01 UA07
Claims (6)
る付設体とから成り、回転体と付設体のいずれか一方に
形成され、凹入する軸線方向のキー溝に、他方に形成さ
れ、突出する軸線方向のキー凸条を嵌め合わせて相対回
転不能に固定する回り止め装置において、 前記キー溝はキー凸条より幅広に構成され、それらの間
に形成される隙間に、自由形状が隙間の幅より広い弾性
部材が圧縮状態に配設されたことを特徴とする回り止め
装置。1. A rotating body and an attached body which is fixed to the rotating body so as to be prevented from rotating, formed in one of the rotating body and the attached body, formed in a recessed axial keyway, and formed in the other. The key groove is configured to be wider than the key ridge, and the free space is formed in a gap formed between the key ridges. Wherein a resilient member wider than the width of the gap is disposed in a compressed state.
突出方向とは逆方向に凹入する凹条が形成され、前記弾
性部材は、前記隙間と凹条とに跨って配設される、請求
項１記載の回り止め装置。2. A concave ridge is formed adjacent to the key ridge in a direction opposite to a direction in which the key ridge protrudes, and the elastic member is disposed over the gap and the concave ridge. The detent device according to claim 1, wherein
プリングピンで構成される、請求項１又は２記載の回り
止め装置。3. The detent device according to claim 1, wherein the elastic member is constituted by a spring pin made of a leaf spring material.
形を有し、短径方向を前記隙間の幅方向に向けて配置さ
れる、請求項３記載の回り止め装置。4. The detent device according to claim 3, wherein the spring pin has an outer shape with an oblong cross section, and is arranged with its minor axis direction oriented in the width direction of the gap.
部分の一方にスリットを有し、該スリットを有する平面
部分を前記キー凸条に当接させて配設される、請求項３
又は４記載の回り止め装置。5. The spring pin according to claim 3, wherein the spring pin has a slit on one of the flat portions in the major axis direction, and the flat portion having the slit is disposed in contact with the key ridge.
Or the detent device according to 4.
であり、前記付設体は、電動機ロータの磁極位置を検出
するセンサのロータである、請求項１〜５のいずれか１
項記載の回り止め装置。6. The motor according to claim 1, wherein the rotating body is a rotor shaft of a motor, and the attached body is a rotor of a sensor for detecting a magnetic pole position of the motor rotor.
The detent device according to the item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001097710A JP2002295500A (en) | 2001-03-29 | 2001-03-29 | Detent device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001097710A JP2002295500A (en) | 2001-03-29 | 2001-03-29 | Detent device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002295500A true JP2002295500A (en) | 2002-10-09 |
Family
ID=18951454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001097710A Pending JP2002295500A (en) | 2001-03-29 | 2001-03-29 | Detent device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002295500A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006038808A (en) * | 2004-07-30 | 2006-02-09 | Toyota Motor Corp | Stator fixed structure of resolver |
| JP2006184212A (en) * | 2004-12-28 | 2006-07-13 | Favess Co Ltd | Attaching structure for rotation angle detector |
| JP2008070276A (en) * | 2006-09-15 | 2008-03-27 | Jtekt Corp | Pulsar ring and bearing device |
| JPWO2006080567A1 (en) * | 2005-01-31 | 2008-06-26 | トヨタ自動車株式会社 | Resolver fixing structure |
| JP2010019817A (en) * | 2008-06-09 | 2010-01-28 | Heidenhain Kk | Encoder having rotation restricting member |
| RU2443912C1 (en) * | 2011-02-25 | 2012-02-27 | Открытое акционерное общество Научно-производственное объединение "Искра" | Key connection |
| JP2013124944A (en) * | 2011-12-15 | 2013-06-24 | Toyota Motor Corp | Resolver rotor |
| DE102013004851A1 (en) | 2012-03-12 | 2013-09-12 | Fanuc Corporation | Rotor for an electric motor comprising a rotating shaft and a yoke securely fitted on the rotating shaft |
| JP2017169269A (en) * | 2016-03-14 | 2017-09-21 | トヨタ自動車株式会社 | Manufacturing method of rotor |
| DE102020117453A1 (en) | 2020-07-02 | 2022-01-05 | Schaeffler Technologies AG & Co. KG | Rotary electric machine rotor, method of manufacturing the rotor, and rotary electric machine |
| DE102020120328A1 (en) | 2020-07-31 | 2022-02-03 | Schaeffler Technologies AG & Co. KG | Rotary electric machine, method for manufacturing a rotary electric machine, and drive system equipped with the rotary electric machine |
-
2001
- 2001-03-29 JP JP2001097710A patent/JP2002295500A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4613544B2 (en) * | 2004-07-30 | 2011-01-19 | トヨタ自動車株式会社 | Resolver stator fixing structure |
| JP2006038808A (en) * | 2004-07-30 | 2006-02-09 | Toyota Motor Corp | Stator fixed structure of resolver |
| JP4529682B2 (en) * | 2004-12-28 | 2010-08-25 | 株式会社ジェイテクト | Mounting structure of rotation angle detector |
| JP2006184212A (en) * | 2004-12-28 | 2006-07-13 | Favess Co Ltd | Attaching structure for rotation angle detector |
| JP4558036B2 (en) * | 2005-01-31 | 2010-10-06 | トヨタ自動車株式会社 | Resolver fixing structure |
| JPWO2006080567A1 (en) * | 2005-01-31 | 2008-06-26 | トヨタ自動車株式会社 | Resolver fixing structure |
| US7928617B2 (en) | 2005-01-31 | 2011-04-19 | Toyota Jidosha Kabushiki Kaisha | Resolver fixing structure |
| JP2008070276A (en) * | 2006-09-15 | 2008-03-27 | Jtekt Corp | Pulsar ring and bearing device |
| JP2010019817A (en) * | 2008-06-09 | 2010-01-28 | Heidenhain Kk | Encoder having rotation restricting member |
| RU2443912C1 (en) * | 2011-02-25 | 2012-02-27 | Открытое акционерное общество Научно-производственное объединение "Искра" | Key connection |
| JP2013124944A (en) * | 2011-12-15 | 2013-06-24 | Toyota Motor Corp | Resolver rotor |
| DE102013004851A1 (en) | 2012-03-12 | 2013-09-12 | Fanuc Corporation | Rotor for an electric motor comprising a rotating shaft and a yoke securely fitted on the rotating shaft |
| JP2017169269A (en) * | 2016-03-14 | 2017-09-21 | トヨタ自動車株式会社 | Manufacturing method of rotor |
| DE102020117453A1 (en) | 2020-07-02 | 2022-01-05 | Schaeffler Technologies AG & Co. KG | Rotary electric machine rotor, method of manufacturing the rotor, and rotary electric machine |
| DE102020120328A1 (en) | 2020-07-31 | 2022-02-03 | Schaeffler Technologies AG & Co. KG | Rotary electric machine, method for manufacturing a rotary electric machine, and drive system equipped with the rotary electric machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3517350B2 (en) | motor | |
| JPH026264Y2 (en) | ||
| US6933649B2 (en) | Method of installation of a laminated stator core stack in the motor casing | |
| JP5371149B2 (en) | Structure of motor with rotation detector | |
| JP2002295500A (en) | Detent device | |
| JP4442610B2 (en) | Bearing structure | |
| JP2010048775A (en) | Variable reluctance type resolver rotor and brushless motor | |
| US11277053B2 (en) | Rotor, motor, and method for manufacturing rotor | |
| TWI482949B (en) | Encoder having rotation restricting member | |
| JP2514505Y2 (en) | Hollow shaft resolver | |
| JP2004239388A (en) | Bearing support unit | |
| JP7294976B2 (en) | motor | |
| WO2008075569A1 (en) | Miniature rotary encoder | |
| JP2002039712A (en) | Coupling structure of non-contact type rotary sensor and pivoting shaft | |
| JP5507921B2 (en) | Structure of motor with rotation detector | |
| JP5541080B2 (en) | Resolver rotor fixing structure | |
| JP2004215441A (en) | Rotary electric machine unit | |
| JP2002369451A (en) | Motor with pole position sensor | |
| JP2011041381A5 (en) | ||
| JPH01244322A (en) | Torque sensor | |
| JP2001286101A (en) | Motor with revolution detector | |
| JP2002195281A (en) | Support structure of rotating shaft | |
| JP2008208952A (en) | Shaft fastening structure for shaft coupling | |
| JP7433183B2 (en) | Rotating electric machine and manufacturing method of rotating electric machine | |
| JP4294365B2 (en) | motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20050106 |