JP2001027646A - Wheel speed detecting device - Google Patents
Wheel speed detecting deviceInfo
- Publication number
- JP2001027646A JP2001027646A JP20156599A JP20156599A JP2001027646A JP 2001027646 A JP2001027646 A JP 2001027646A JP 20156599 A JP20156599 A JP 20156599A JP 20156599 A JP20156599 A JP 20156599A JP 2001027646 A JP2001027646 A JP 2001027646A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- detecting
- wheel speed
- wheel
- shaft
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0078—Hubs characterised by the fixation of bearings
- B60B27/0084—Hubs characterised by the fixation of bearings caulking to fix inner race
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
- F16C19/186—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/02—Wheel hubs or castors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、たとえば、自動
車のハブユニット等に用いられる車輪速検出装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel speed detecting device used for, for example, a hub unit of an automobile.
【０００２】[0002]
【従来の技術】従来、この種の車輪速検出装置として
は、図４に示すように、ハブユニット１２０に取り付け
られたものがある。この車輪速検出装置は、内輪１０１
の外周端部に固定されたパルサリング１０２と、このパ
ルサリング１０２に形成された窓１０３に径方向内側か
ら対向するように配置されたコイル１０５とこのコイル
１０５の軸方向外方に隣接させた磁石１０６からなる磁
気センサ１０７とで構成されている。この磁気センサ１
０７は、外輪１０８の軸方向端部に固定された筒状カバ
ー部材１１０の蓋部１１０Ａに固定されている。2. Description of the Related Art Conventionally, as this kind of wheel speed detecting device, there is a device mounted on a hub unit 120 as shown in FIG. The wheel speed detecting device includes an inner wheel 101
A pulsar ring 102 fixed to an outer peripheral end of the pulsar ring 102, a coil 105 arranged to face a window 103 formed in the pulsar ring 102 from the radial inside, and a magnet 106 adjacent to the coil 105 axially outward. And a magnetic sensor 107 composed of This magnetic sensor 1
07 is fixed to the lid 110A of the cylindrical cover member 110 fixed to the axial end of the outer ring 108.
【０００３】この車輪速検出装置は、外輪１０８に対し
て内輪１０１が回転すると、パルサリング１０２の回転
に伴って変化する磁界を、上記磁気センサ１０７で検出
して、内輪１０１の回転速度を検出する。In this wheel speed detecting device, when the inner wheel 101 rotates with respect to the outer wheel 108, the magnetic sensor 107 detects a magnetic field that changes with the rotation of the pulsar ring 102, and detects the rotation speed of the inner wheel 101. .
【０００４】[0004]
【発明が解決しようとする課題】ところで、この内輪１
０１は、軸部材１１１の軸端ボルト１１２に螺合したナ
ット１１３でもって、軸部材１１１に固定されている。
このナット１１３が内輪１０１から軸方向に突出してい
るために、磁気センサ１０７の配置スペースが軸方向に
突き出し、ハブユニット１２０の外形寸法の増大を招い
ている。By the way, this inner ring 1
01 is fixed to the shaft member 111 by a nut 113 screwed to a shaft end bolt 112 of the shaft member 111.
Since the nut 113 protrudes from the inner ring 101 in the axial direction, the arrangement space for the magnetic sensor 107 protrudes in the axial direction, which causes an increase in the outer dimensions of the hub unit 120.
【０００５】そこで、この発明の目的は、ハブユニット
の外形寸法の増大を抑え、コンパクトなハブユニットを
実現できる車輪速検出装置を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a wheel speed detecting device capable of suppressing an increase in the outer dimensions of a hub unit and realizing a compact hub unit.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、請求項１の発明の車輪速検出装置は、軸に固定した
内輪と外輪との間の相対回転速度を、磁性体からなる被
検知部からの磁界変化を検知することによって検出する
車輪速検出装置であって、上記軸の軸方向端部に形成し
た凹部の周りの輪状部をかしめることで、この輪状部の
外周に内輪が固定されていて、上記軸方向端部に形成し
た凹部に、上記磁性体からの磁界を検知する磁界検知機
構の少なくとも一部を配置したことを特徴としている。According to a first aspect of the present invention, there is provided a wheel speed detecting apparatus for detecting a relative rotational speed between an inner wheel and an outer wheel fixed to a shaft by detecting a relative rotational speed of a magnetic material. A wheel speed detecting device that detects by detecting a magnetic field change from a portion, wherein an inner ring is formed on the outer periphery of the annular portion by caulking an annular portion around a concave portion formed at an axial end of the shaft. At least a part of a magnetic field detecting mechanism for detecting a magnetic field from the magnetic body is disposed in the recess formed at the axial end, which is fixed.
【０００７】この請求項１の発明では、軸に内輪をかし
め固定するのに必要となる輪状部の内側の空きスペース
である凹部に、磁界検知機構の少なくとも一部を配置し
たから、ハブユニットの外形寸法の増大を抑えることが
でき、コンパクトなハブユニットを実現できる。According to the first aspect of the present invention, at least a part of the magnetic field detecting mechanism is disposed in the concave portion which is an empty space inside the annular portion necessary for caulking and fixing the inner ring to the shaft. An increase in external dimensions can be suppressed, and a compact hub unit can be realized.
【０００８】また、請求項２の発明の車輪速検出装置
は、軸に固定した内輪と外輪との間の相対回転速度を、
磁性体からなる被検知部からの磁界変化を検知すること
によって検出する車輪速検出装置であって、上記軸の軸
方向端部に形成した凹部の周りの輪状部をかしめること
で、この輪状部の外周に内輪が固定されていて、上記軸
方向端部に形成した凹部に、上記磁性体からなる被検知
部の少なくとも一部を配置したことを特徴としている。Further, the wheel speed detecting device according to the second aspect of the present invention provides a device for detecting a relative rotational speed between an inner wheel and an outer wheel fixed to a shaft.
A wheel speed detection device that detects by detecting a change in a magnetic field from a detected portion made of a magnetic material, and crimps a loop portion around a concave portion formed at an axial end of the shaft to form the ring shape. An inner ring is fixed to the outer periphery of the portion, and at least a part of the detected portion made of the magnetic material is arranged in a concave portion formed at the axial end.
【０００９】この請求項２の発明では、軸に内輪をかし
め固定するのに必要となる輪状部の内側の空きスペース
である凹部に、磁性体からなる被検知部の少なくとも一
部を配置したから、ハブユニットの外形寸法の増大を抑
えることができ、コンパクトなハブユニットを実現でき
る。According to the second aspect of the present invention, at least a part of the detected portion made of a magnetic material is arranged in the concave portion which is an empty space inside the annular portion necessary for caulking and fixing the inner ring to the shaft. Thus, an increase in the outer dimensions of the hub unit can be suppressed, and a compact hub unit can be realized.
【００１０】また、請求項３の発明の車輪速検出装置
は、軸に固定した内輪と外輪との間の相対回転速度を、
磁性体からなる被検知部からの磁界変化を検知すること
によって検出する車輪速検出装置であって、上記軸の軸
方向端部に形成した凹部の周りの輪状部をかしめること
で、この輪状部の外周に内輪が固定されていて、上記磁
性体からの磁界を検知する磁界検知機構を構成するコイ
ルと磁石を、上記軸の軸方向端部に隣接するスペース
に、半径方向に配列したことを特徴としている。[0010] The wheel speed detecting device according to the third aspect of the present invention is a device for detecting a relative rotational speed between an inner wheel and an outer wheel fixed to a shaft.
A wheel speed detection device that detects by detecting a change in a magnetic field from a detected portion made of a magnetic material, and crimps a loop portion around a concave portion formed at an axial end of the shaft to form the ring shape. The inner ring is fixed to the outer periphery of the portion, and coils and magnets constituting a magnetic field detecting mechanism for detecting a magnetic field from the magnetic material are radially arranged in a space adjacent to an axial end of the shaft. It is characterized by.
【００１１】この請求項３の発明では、軸に内輪をかし
めで固定したことにより、ボルト,ナットが不要になっ
て空きスペースとなった軸の軸方向端部に隣接するスペ
ースに、磁界検知機構を構成するコイルと磁石を半径方
向に配列した。したがって、ボルト,ナットに軸方向に
隣接して、コイルと磁石を軸方向に隣接して配列した従
来例に比較して、軸方向寸法を大幅に減少させることが
でき、コンパクトなハブユニットを実現できる。According to the third aspect of the present invention, the inner ring is fixed to the shaft by caulking, so that a bolt and a nut are not required, and a space adjacent to the axial end of the shaft, which is an empty space, is provided. Are arranged in the radial direction. Therefore, compared to the conventional example in which the coil and magnet are arranged adjacent to the bolt and nut in the axial direction and the coil and magnet are arranged adjacent to the axial direction, the axial dimension can be significantly reduced, and a compact hub unit is realized. it can.
【００１２】[0012]
【発明の実施の形態】以下、この発明を図示の実施の形
態により詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.
【００１３】〔第１の実施の形態〕図１に、この発明の
車輪速検出装置の第１実施形態を備えたハブユニットの
部分断面を示す。このハブユニットは、軸１の小径の軸
方向端部２の軸方向端面に形成された凹部３の周りの輪
状部５の外周面に内輪６が嵌合されている。この内輪６
は、輪状部５を外径側にかしめることによって、軸１の
軸方向端部２に対して回転不可かつ軸方向移動不可に固
定されている。この内輪６の軌道６Ａと外輪７の軌道７
Ａとの間に複数の玉８が周方向に配列されており、玉８
は保持器１０によって保持されている。また、上記軸方
向端部２の軸方向内側の中径部１１と上記外輪７の軌道
７Ｂとの間に複数の玉１２が周方向に配列されている。FIG. 1 shows a partial cross section of a hub unit provided with a first embodiment of a wheel speed detecting device according to the present invention. In this hub unit, an inner ring 6 is fitted to an outer peripheral surface of a ring portion 5 around a concave portion 3 formed in an axial end surface of a small diameter axial end portion 2 of the shaft 1. This inner ring 6
Is fixed so that it cannot rotate and cannot move in the axial direction with respect to the axial end 2 of the shaft 1 by caulking the annular portion 5 toward the outer diameter side. The track 6A of the inner ring 6 and the track 7 of the outer ring 7
A and a plurality of balls 8 are arranged in the circumferential direction.
Is held by the holder 10. A plurality of balls 12 are arranged in the circumferential direction between a middle diameter portion 11 inside the axial end 2 in the axial direction and a track 7B of the outer ring 7.
【００１４】また、内輪６と外輪７の間には、玉８に隣
接してエンドベアリング１３が配置されている。さら
に、このエンドベアリング１３に隣接する外輪７の軸端
部１５の内周面に磁性体からなる検知リング１６が固定
されている。この検知リング１６は、周方向に所定間隔
を隔てて複数個形成された窓１７を備えている。そし
て、この検知リング１６に対向するように、磁界検知機
構１８のセンス部２０が配置され、この磁界検知機構１
８の本体固定部２１が軸１の軸方向端面に形成された凹
部３に嵌め込まれて固定されている。この磁界検知機構
１８が検知した磁界による信号は、本体２２から延びて
いるワイヤ２３で図示しない信号処理部に伝達される。An end bearing 13 is arranged between the inner ring 6 and the outer ring 7 adjacent to the ball 8. Further, a detection ring 16 made of a magnetic material is fixed to the inner peripheral surface of the shaft end 15 of the outer ring 7 adjacent to the end bearing 13. The detection ring 16 has a plurality of windows 17 formed at predetermined intervals in the circumferential direction. The sensing portion 20 of the magnetic field detecting mechanism 18 is arranged so as to face the detecting ring 16.
8 is fixed by being fitted into the concave portion 3 formed on the axial end face of the shaft 1. A signal based on the magnetic field detected by the magnetic field detecting mechanism 18 is transmitted to a signal processing unit (not shown) via a wire 23 extending from the main body 22.
【００１５】上記検知リング１６と磁界検知機構１８が
構成する車輪速検出装置は、軸１に対して外輪７が回転
することによって、磁界検知機構１８のセンス部２０に
対して検知リング１６が回転する。このときの磁気変化
を上記センス部２０で検知し、本体２２に内蔵した電子
回路で増幅し信号処理してから、ワイヤ２３から出力す
る。In the wheel speed detecting device constituted by the detecting ring 16 and the magnetic field detecting mechanism 18, when the outer ring 7 rotates with respect to the shaft 1, the detecting ring 16 rotates with respect to the sensing portion 20 of the magnetic field detecting mechanism 18. I do. The magnetic change at this time is detected by the sensing unit 20, amplified by an electronic circuit built in the main body 22, subjected to signal processing, and output from the wire 23.
【００１６】この第１実施形態では、軸１に内輪６をか
しめ固定するのに必要となる輪状部５の内側の空きスペ
ースである凹部３に、磁界検知機構１８の固定部２１を
配置したから、ハブユニットの外形寸法の増大を抑える
ことができ、コンパクトなハブユニットを実現できる。In the first embodiment, the fixing portion 21 of the magnetic field detecting mechanism 18 is disposed in the concave portion 3 which is an empty space inside the annular portion 5 necessary for caulking and fixing the inner ring 6 to the shaft 1. Thus, an increase in the outer dimensions of the hub unit can be suppressed, and a compact hub unit can be realized.
【００１７】〔第２の実施の形態〕次に、図２(Ａ)に、
この発明の車輪速検出装置の第２の実施の形態を備えた
ハブユニットの部分断面を示す。このハブユニットは、
車輪速検出装置を除いて、図１に示したハブユニットと
同じ構造である。また、この第２実施形態の車輪速検出
装置は、第１実施形態の車輪速検出装置と異なる点のみ
を説明する。[Second Embodiment] Next, FIG.
5 shows a partial cross section of a hub unit provided with a second embodiment of the wheel speed detecting device of the present invention. This hub unit
Except for the wheel speed detection device, it has the same structure as the hub unit shown in FIG. In addition, only differences between the wheel speed detection device of the second embodiment and the wheel speed detection device of the first embodiment will be described.
【００１８】この第２実施形態では、略円筒形状に成形
されたプラスチックマグネットからなる着磁パルサ３１
が軸１の軸方向端部２の凹部３に圧入されている。そし
て、この着磁パルサ３１の回転による磁界変化を検出す
る磁界検知機構３２が上記着磁パルサ３１に対向して配
置されている。この磁界検知機構３２は、固定側部材と
しての外輪７に固定された取り付け部材３３に固定され
ている。In the second embodiment, a magnetized pulsar 31 made of a plastic magnet molded into a substantially cylindrical shape is used.
Is press-fitted into the recess 3 at the axial end 2 of the shaft 1. A magnetic field detecting mechanism 32 for detecting a magnetic field change due to the rotation of the magnetized pulsar 31 is arranged to face the magnetized pulsar 31. The magnetic field detecting mechanism 32 is fixed to a mounting member 33 fixed to the outer ring 7 as a fixed member.
【００１９】この第２実施形態によれば、軸１に内輪６
をかしめ固定するのに必要となる輪状部５の内側の空き
スペースである凹部３に、着磁パルサ３１を配置したか
ら、ハブユニットの外形寸法の増大を抑えることがで
き、コンパクトなハブユニットを実現できる。According to the second embodiment, the inner ring 6 is attached to the shaft 1.
Since the magnetized pulsar 31 is disposed in the concave portion 3 which is an empty space inside the annular portion 5 necessary for caulking and fixing, an increase in the outer dimensions of the hub unit can be suppressed, and a compact hub unit can be provided. realizable.
【００２０】尚、この第２実施形態では、凹部３に円筒
形状の着磁パルサ３１を圧入したが、凹部３に、図２
(Ｂ)に示すような円板部材３５を圧入し、この円板部材
３５の円周部３５Ａにリング状の着磁ゴム３６を貼り付
けて、着磁パルサ３７としてもよい。この場合、磁界検
知機構を径方向外側に配置できるから、磁界検知機構を
配置し易くなる。In the second embodiment, the cylindrical magnetized pulsar 31 is press-fitted into the concave portion 3.
(B) may be press-fitted, and a ring-shaped magnetized rubber 36 may be attached to a circumferential portion 35A of the disc member 35 to form a magnetized pulser 37. In this case, since the magnetic field detecting mechanism can be arranged radially outside, it is easy to arrange the magnetic field detecting mechanism.
【００２１】〔第３の実施の形態〕次に、図３に、この
発明の車輪速検出装置の第３実施形態を備えたハブユニ
ットの部分断面を示す。このハブユニットは、軸５１の
軸方向端部５２の外周面に内輪５６が嵌合されている。
この内輪５６は、軸５１の軸方向端面に形成された凹部
５３の周りの輪状部５５を外径側にかしめることによっ
て、軸５１の軸方向端部５２に対して回転不可かつ軸方
向移動不可に固定されている。この内輪５６の軌道５６
Ａと外輪５７の軌道５７Ａとの間に複数の玉５８が周方
向に配列されている。また、上記軸方向端部５２の軸方
向内側の中径部６１と外輪５７の軌道５７Ｂとの間に複
数の玉６２が周方向に配列されている。[Third Embodiment] Next, FIG. 3 shows a partial cross section of a hub unit provided with a third embodiment of the wheel speed detecting device according to the present invention. In this hub unit, an inner ring 56 is fitted on an outer peripheral surface of an axial end 52 of a shaft 51.
The inner ring 56 is non-rotatable and axially movable with respect to the axial end 52 of the shaft 51 by caulking a ring-shaped portion 55 around a concave portion 53 formed on the axial end face of the shaft 51 to the outer diameter side. Fixed to impossible. Track 56 of this inner ring 56
A plurality of balls 58 are arranged in the circumferential direction between A and the track 57A of the outer ring 57. Further, a plurality of balls 62 are arranged in the circumferential direction between a middle diameter portion 61 inside the axial end 52 in the axial direction and a track 57B of the outer ring 57.
【００２２】また、内輪５６の軸端部６５の外周面に磁
性体からなる検知リング６６が固定されている。この検
知リング６６は、周方向に所定間隔を隔てて複数個形成
された窓６７を備えている。そして、この検知リング６
６の窓６７の径方向内側に対向するように、磁界検知機
構６８が配置されている。この磁界検知機構６８は、外
輪５７の軸端部の内周面に固定された円筒カバー７０の
蓋部７１に固定されている。磁界検知機構６８は、窓６
７に対向するコイル７２と、このコイル７２の径方向内
方に隣接する磁石７３からなる。A detection ring 66 made of a magnetic material is fixed to the outer peripheral surface of the shaft end 65 of the inner race 56. The detection ring 66 includes a plurality of windows 67 formed at predetermined intervals in a circumferential direction. And this detection ring 6
A magnetic field detection mechanism 68 is arranged so as to face radially inward of the sixth window 67. The magnetic field detecting mechanism 68 is fixed to a lid 71 of a cylindrical cover 70 fixed to the inner peripheral surface of the shaft end of the outer ring 57. The magnetic field detecting mechanism 68 has a
7, and a magnet 73 adjacent radially inward of the coil 72.
【００２３】この第３実施形態は、外輪５７に対して軸
５１,内輪５６が回転することで、磁界検知機構６８に
対して検知リング６６が回転し、この検知リング６６の
回転によって発生する磁界の周期変化を、コイル７２と
磁石７３からなる磁界検知機構６８で検出する。In the third embodiment, the rotation of the shaft 51 and the inner ring 56 with respect to the outer ring 57 causes the detection ring 66 to rotate with respect to the magnetic field detection mechanism 68, and the magnetic field generated by the rotation of the detection ring 66. Is detected by the magnetic field detecting mechanism 68 including the coil 72 and the magnet 73.
【００２４】この第３実施形態によれば、軸５１に内輪
５６をかしめで固定したことにより、ボルト,ナットが
不要になって空きスペースとなった軸５１の軸方向端部
５２に隣接するスペースに、磁界検知機構６８を構成す
るコイル７２と磁石７３を半径方向に配列した。したが
って、ボルト,ナットの軸方向に隣接して、コイル７２
と磁石７３を軸方向に隣接して配列した図４の従来例に
比較して、軸方向寸法を大幅に減少させることができ、
コンパクトなハブユニットを実現できる。According to the third embodiment, since the inner ring 56 is fixed to the shaft 51 by caulking, the space adjacent to the axial end portion 52 of the shaft 51 becomes an empty space because bolts and nuts are not required. The coils 72 and the magnets 73 constituting the magnetic field detecting mechanism 68 are arranged in the radial direction. Therefore, the coil 72 is located adjacent to the bolt and nut in the axial direction.
And the magnet 73 can be greatly reduced in axial dimension as compared with the conventional example of FIG.
A compact hub unit can be realized.
【００２５】[0025]
【発明の効果】以上より明らかなように、請求項１の発
明の車輪速検出装置は、軸に内輪をかしめ固定するのに
必要となる輪状部の内側の空きスペースである凹部に、
磁界検知機構の少なくとも一部を配置したから、ハブユ
ニットの外形寸法の増大を抑えることができ、コンパク
トなハブユニットを実現できる。As is apparent from the above description, the wheel speed detecting device according to the first aspect of the present invention is provided with a concave portion which is an empty space inside the annular portion necessary for caulking and fixing the inner ring to the shaft.
Since at least a part of the magnetic field detection mechanism is arranged, an increase in the outer dimensions of the hub unit can be suppressed, and a compact hub unit can be realized.
【００２６】また、請求項２の発明の車輪速検出装置
は、軸に内輪をかしめ固定するのに必要となる輪状部の
内側の空きスペースである凹部に、磁性体からなる被検
知部の少なくとも一部を配置したから、ハブユニットの
外形寸法の増大を抑えることができ、コンパクトなハブ
ユニットを実現できる。In the wheel speed detecting device according to the second aspect of the present invention, at least one of the detected portions made of a magnetic material is provided in a concave portion which is an empty space inside the annular portion necessary for caulking and fixing the inner ring to the shaft. Since a part of the hub unit is arranged, an increase in the outer dimensions of the hub unit can be suppressed, and a compact hub unit can be realized.
【００２７】また、請求項３の発明の車輪速検出装置
は、軸に内輪をかしめで固定したことにより、ボルト,
ナットが不要になって空きスペースとなった軸の軸方向
端部に隣接するスペースに、磁界検知機構を構成するコ
イルと磁石を半径方向に配列した。したがって、ボル
ト,ナットに軸方向に隣接して、コイルと磁石を軸方向
に隣接して配列した従来例に比較して、軸方向寸法を大
幅に減少させることができ、コンパクトなハブユニット
を実現できる。In the wheel speed detecting device according to the third aspect of the present invention, the inner ring is fixed to the shaft by caulking, so that the bolt,
The coil and the magnet constituting the magnetic field detecting mechanism are arranged in the radial direction in the space adjacent to the axial end of the shaft, which has become an empty space because the nut is not required. Therefore, compared to the conventional example in which the coil and magnet are arranged adjacent to the bolt and nut in the axial direction and the coil and magnet are arranged adjacent to the axial direction, the axial dimension can be significantly reduced, and a compact hub unit is realized. it can.
【図１】 この発明の車輪速検出装置の第１実施形態を
備えるハブユニットの部分断面図である。FIG. 1 is a partial cross-sectional view of a hub unit including a first embodiment of a wheel speed detection device of the present invention.
【図２】 図２(Ａ)はこの発明の車輪速検出装置の第２
実施形態を備えるハブユニットの部分断面図であり、図
２(Ｂ)は上記第２実施形態の磁性体からなる被検知部の
変形例を示す図である。FIG. 2A shows a second example of the wheel speed detecting device according to the present invention.
FIG. 2B is a partial cross-sectional view of a hub unit including an embodiment, and FIG. 2B is a diagram illustrating a modified example of a detection target made of a magnetic material according to the second embodiment.
【図３】 この発明の第３実施形態を備えるハブユニッ
トの部分断面図である。FIG. 3 is a partial sectional view of a hub unit including a third embodiment of the present invention.
【図４】 従来の車輪速検出装置を備えたハブユニット
の部分断面図である。FIG. 4 is a partial sectional view of a hub unit provided with a conventional wheel speed detecting device.
１,５１…軸、２,５２…軸方向端部、３,５３…凹部、
５,５５…輪状部、６,５６…内輪、７,５７…外輪、８,
５８…玉、１０…保持器、１１…中径部、１２…玉、１
５,６５…軸端部、１６,６６…検知リング、１７,６７
…窓、１８,３２,６８…磁界検知機構、２０…センス
部、２１…本体固定部、２２…本体、３１,３７…着磁
パルサ、３５…円板部材、３６…着磁ゴム、７２…コイ
ル、７３…磁石。1,51 ... shaft, 2,52 ... axial end, 3,53 ... recess,
5,55: annular part, 6,56: inner ring, 7,57: outer ring, 8,
58: ball, 10: cage, 11: medium diameter portion, 12: ball, 1
5, 65: shaft end, 16, 66: detection ring, 17, 67
... Window, 18, 32, 68 ... magnetic field detection mechanism, 20 ... sense part, 21 ... body fixing part, 22 ... body, 31, 37 ... magnetized pulsar, 35 ... disk member, 36 ... magnetized rubber, 72 ... Coil, 73 ... magnet.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｇ０１Ｐ 3/487 Ｇ０１Ｐ 3/487 Ｌ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) G01P 3/487 G01P 3/487 L
Claims (3)
転速度を、磁性体からなる被検知部からの磁界変化を検
知することによって検出する車輪速検出装置であって、 上記軸の軸方向端部に形成した凹部の周りの輪状部をか
しめることで、この輪状部の外周に内輪が固定されてい
て、 上記軸方向端部に形成した凹部に、上記磁性体からの磁
界を検知する磁界検知機構の少なくとも一部を配置した
ことを特徴とする車輪速検出装置。1. A wheel speed detecting device for detecting a relative rotational speed between an inner wheel and an outer wheel fixed to a shaft by detecting a change in a magnetic field from a detected portion made of a magnetic material, By caulking the loop around the recess formed at the axial end, the inner ring is fixed to the outer periphery of the loop, and the magnetic field from the magnetic material is applied to the recess formed at the axial end. A wheel speed detecting device, wherein at least a part of a magnetic field detecting mechanism for detecting is arranged.
転速度を、磁性体からなる被検知部からの磁界変化を検
知することによって検出する車輪速検出装置であって、 上記軸の軸方向端部に形成した凹部の周りの輪状部をか
しめることで、この輪状部の外周に内輪が固定されてい
て、 上記軸方向端部に形成した凹部に、上記磁性体からなる
被検知部の少なくとも一部を配置したことを特徴とする
車輪速検出装置。2. A wheel speed detection device for detecting a relative rotation speed between an inner wheel and an outer wheel fixed to a shaft by detecting a change in a magnetic field from a detected portion made of a magnetic material, The inner ring is fixed to the outer periphery of the annular portion by caulking the annular portion around the concave portion formed at the axial end portion, and the inner ring is fixed to the concave portion formed at the axial end portion to be detected by the magnetic material. A wheel speed detecting device, wherein at least a part of a part is arranged.
転速度を、磁性体からなる被検知部からの磁界変化を検
知することによって検出する車輪速検出装置であって、 上記軸の軸方向端部に形成した凹部の周りの輪状部をか
しめることで、この輪状部の外周に内輪が固定されてい
て、 上記磁性体からの磁界を検知する磁界検知機構を構成す
るコイルと磁石を半径方向に配列したことを特徴とする
車輪速検出装置。3. A wheel speed detecting device for detecting a relative rotational speed between an inner wheel and an outer wheel fixed to a shaft by detecting a change in a magnetic field from a detected portion made of a magnetic material. By caulking a loop around the concave portion formed at the axial end, an inner ring is fixed to the outer periphery of the loop, and a coil and a magnet constituting a magnetic field detection mechanism for detecting a magnetic field from the magnetic body The wheel speed detecting device, wherein are arranged in a radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20156599A JP4138168B2 (en) | 1999-07-15 | 1999-07-15 | Wheel speed detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20156599A JP4138168B2 (en) | 1999-07-15 | 1999-07-15 | Wheel speed detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001027646A true JP2001027646A (en) | 2001-01-30 |
| JP4138168B2 JP4138168B2 (en) | 2008-08-20 |
Family
ID=16443173
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20156599A Expired - Fee Related JP4138168B2 (en) | 1999-07-15 | 1999-07-15 | Wheel speed detection device |
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| Country | Link |
|---|---|
| JP (1) | JP4138168B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019125079A1 (en) * | 2017-12-22 | 2019-06-27 | 주식회사 일진글로벌 | Sensor target for wheel bearing, manufacturing method of sensor target, and wheel bearing comprising sensor target |
-
1999
- 1999-07-15 JP JP20156599A patent/JP4138168B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019125079A1 (en) * | 2017-12-22 | 2019-06-27 | 주식회사 일진글로벌 | Sensor target for wheel bearing, manufacturing method of sensor target, and wheel bearing comprising sensor target |
| KR20190076641A (en) * | 2017-12-22 | 2019-07-02 | 주식회사 일진글로벌 | Sensor target for wheel bearing, method of manufacturing sensor target, and wheel bearing including sensor target |
| KR102018689B1 (en) * | 2017-12-22 | 2019-11-04 | 주식회사 일진글로벌 | Sensor target for wheel bearing, method of manufacturing sensor target, and wheel bearing including sensor target |
| US11014403B2 (en) | 2017-12-22 | 2021-05-25 | Iljin Global Co., Ltd | Sensor target for wheel bearing, manufacturing method of sensor target, and wheel bearing comprising sensor target |
| DE112018001954B4 (en) * | 2017-12-22 | 2021-05-27 | Iljin Global Co., Ltd. | WHEEL BEARING WITH A SENSOR MEASURING OBJECT AND MANUFACTURING METHOD FOR A SENSOR MEASURING OBJECT FOR A WHEEL BEARING |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4138168B2 (en) | 2008-08-20 |
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