JP2826688B2 - Rotation detection device - Google Patents
Rotation detection deviceInfo
- Publication number
- JP2826688B2 JP2826688B2 JP7552592A JP7552592A JP2826688B2 JP 2826688 B2 JP2826688 B2 JP 2826688B2 JP 7552592 A JP7552592 A JP 7552592A JP 7552592 A JP7552592 A JP 7552592A JP 2826688 B2 JP2826688 B2 JP 2826688B2
- Authority
- JP
- Japan
- Prior art keywords
- elastic member
- rotation
- sealing
- rotation detection
- seal
- 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 - Fee Related
Links
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、相対回転する軸受部の
回転検出装置に関し、具体的には自動車のアンチロック
ブレーキシステムにおける前後の車輪回転を検出する回
転検出装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotation detecting device for a bearing portion which rotates relatively, and more particularly, to a rotation detecting device for detecting front and rear wheel rotation in an anti-lock brake system of an automobile.
【０００２】[0002]
【従来の技術】従来、自動車のスキッドを防止するため
のアンチスキッド用回転数検出装置としては次のような
構造が多く用いられている。すなわち、前記回転検出装
置は歯付ローターと感知センサーからなっており、その
際軸受けを密封するシール装置よりそれぞれ離間させて
配置し、一つの独立した回転検出装置を構成しているも
のが一般的である。以下、図面を参照しつつ詳述する。2. Description of the Related Art Hitherto, the following structure has been widely used as an anti-skid rotation speed detecting device for preventing skid of an automobile. That is, the rotation detecting device is composed of a toothed rotor and a sensing sensor, and at this time, it is generally arranged so as to be separated from the sealing device for sealing the bearing, thereby constituting one independent rotation detecting device. It is. Hereinafter, this will be described in detail with reference to the drawings.
【０００３】このような従来例を示すと、図４のように
回転軸（５）に嵌合された歯付ローター（６）をハブ
（７）に取付られた回転数検出センサー（８）で感知検
出する構造を示している。ここで軸受（９）はその側部
に独立して設けられたシール装置（Ａ）によって水分あ
るいは異物の侵入から守られている。In such a conventional example, as shown in FIG. 4, a toothed rotor (6) fitted on a rotating shaft (5) is rotated by a rotation speed detecting sensor (8) mounted on a hub (7). The structure which detects and detects is shown. Here, the bearing (9) is protected from the invasion of moisture or foreign matter by a sealing device (A) provided independently on its side.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うな回転数検出装置の構造は、該歯付ローター（６）及
び回転数検出センサー（８）を取り付ける専用のスペー
スを必要とし、さらにシール装置（Ａ）の併設配置など
複雑構造にならざるを得ないものであり、従って振動あ
るいは振れ等に弱く、また、その検出精度の確保からそ
の圧入部の精密な研磨仕上げを要する。本発明はこのよ
うな欠点に鑑み、装着スペースを削減せしめ感知性能を
飛躍的に向上せしめた車輪回転を検出する回転検出装置
を提供することを目的としている。However, such a structure of the rotational speed detecting device requires a special space for mounting the toothed rotor (6) and the rotational speed detecting sensor (8), and further requires a sealing device (8). It is inevitable to have a complicated structure such as the parallel arrangement of A), and is therefore susceptible to vibration or runout, and requires precise polishing of the press-fitted portion in order to ensure detection accuracy. The present invention has been made in view of the above-described drawbacks, and has as its object to provide a rotation detection device that detects a wheel rotation with a reduced mounting space and dramatically improved sensing performance.
【０００５】[0005]
【課題を解決するための手段】本発明を図面に基づいて
説明すると、図１に示すように、軸受部の密封をなすシ
ール（１ａ）あるいは図３に示すようにスリンガー（１
ｂ）等の密封部材（１）に取り付け配置され、該軸受の
回転運動を検出するための回転検出装置であって、前記
密封部材（１）に図２の如く合成ゴムあるいは合成樹脂
等からなる弾性部材（２）を等間隔をもって周状に配設
せしめ、該密封部材（１）と弾性部材（２）へ超音波発
・受信装置からなる回転検出センサー（３）を近接せし
めて形成したことを特徴としている。The present invention will be described with reference to the drawings. As shown in FIG. 1, a seal (1a) for sealing a bearing portion or a slinger (1) as shown in FIG.
b) A rotation detecting device mounted on a sealing member (1) such as b) for detecting the rotational movement of the bearing, wherein the sealing member (1) is made of synthetic rubber or synthetic resin as shown in FIG. An elastic member (2) is circumferentially arranged at equal intervals, and a rotation detecting sensor (3) comprising an ultrasonic transmitting / receiving device is formed close to the sealing member (1) and the elastic member (2). It is characterized by.
【０００６】[0006]
【作用】本発明は、上記した構造をもって下記に示す優
れた作用をなす。すなわち、回転する軸に固定された密
封部材（１）、例えば図１に示すような複数の部材が組
合されたシール（１ａ）、あるいは図３のようなスリン
ガー（１ｂ）等の径方向部に、合成ゴム等の弾性部材
（２）を等間隔をもって周状に焼付け装着せしめるか、
あるいは図３に示す如く、前記弾性部材（２）にスリッ
ト（４）を設けて等間隔をもって焼付け形成せしめ、図
２に示すようにシール（１）と弾性部材（２）を感知可
能な固定部に取付られる回転検出センサー（３）によっ
てその回転を感知せしめる。この回転検出センサー
（３）は、超音波の発・受信を行なうことによりその反
射の強弱、位相の差を検出して測定される。According to the present invention, the above-mentioned structure has the following excellent effects. That is, a radial member such as a sealing member (1) fixed to a rotating shaft, for example, a seal (1a) in which a plurality of members are combined as shown in FIG. 1, or a slinger (1b) as shown in FIG. Or baking and attaching an elastic member (2) such as synthetic rubber at equal intervals in a circumferential manner,
Alternatively, as shown in FIG. 3, the elastic member (2) is provided with a slit (4) and is baked and formed at regular intervals, and as shown in FIG. 2, a fixing portion capable of sensing the seal (1) and the elastic member (2). The rotation is detected by a rotation detection sensor (3) attached to the camera. The rotation detecting sensor (3) detects and measures the difference in the intensity and phase of the reflection by transmitting and receiving the ultrasonic wave.
【０００７】[0007]
【実施例】本発明を実施するに、密封部材（１）に配設
した弾性部材（２）は軸受（９）に面する側あるいはそ
の反対側等いずれに設けてもよく、また、図１に示した
ようなシール（１ａ）の円周方向に弾性部材（２）を設
ける他、前記シール（１ａ）を軸方向に延設可能であれ
ば該軸方向部（図示しない）に設けて回転検出センサー
（３）を周方向から配向しても差し支えない。なお、前
記シール（１ａ）は図１では複数の部材が組合された組
シール構造を表わしたが、例えばシールリップに補強環
を取り付けた単体シール（図示していない）であっても
良い。DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to carry out the present invention, the elastic member (2) provided on the sealing member (1) may be provided on the side facing the bearing (9) or on the opposite side thereof. In addition to providing the elastic member (2) in the circumferential direction of the seal (1a) as shown in (1), if the seal (1a) can be extended in the axial direction, it is provided on the axial portion (not shown) and rotated. The detection sensor (3) may be oriented in the circumferential direction. Although the seal (1a) shown in FIG. 1 is a set seal structure in which a plurality of members are combined, for example, a single seal (not shown) in which a reinforcing ring is attached to a seal lip may be used.
【０００８】また、前記弾性部材（２）を図３に示すよ
うに、振切り・遮断作用を有するスリンガー（１ｂ）に
設ける場合、求められるスリンガー（１ｂ）の前記作用
からしてその径方向部に設けることが好ましい作用効果
を見せる。When the elastic member (2) is provided on a slinger (1b) having a shaking-off / blocking action as shown in FIG. 3, a radial portion thereof is required due to the required action of the slinger (1b). It is preferable to provide a function and effect.
【０００９】また、前記弾性部材（２）を設ける際、図
３に示したようなスリット（４）を配して等間隔をもっ
て焼付け形成せしめると、密封部材（１）の他部分、例
えば嵌合部分等にも弾性材料を周り込み配設可能とな
り、シール機能を向上させることも嵌合力を高めること
もできるので有利な構造となる。Further, when the elastic member (2) is provided, if the slits (4) as shown in FIG. 3 are arranged and are baked at equal intervals, other portions of the sealing member (1), for example, fitting. An elastic material can also be provided around the portion and the like, so that the sealing function can be improved and the fitting force can be increased, resulting in an advantageous structure.
【００１０】[0010]
【発明の効果】本発明によると、弾性部材（２）に超音
波の発・受信を行なう回転検出センサー（３）を配設せ
しめたことによりその反射の強弱、位相の差を正確に検
出して確実な回転検出が実現される。また、従来用いら
れていた高精度の必要な歯付ローター（６）を、密封部
材（１）で代用せしめることができ、しかもこれを成型
の容易な弾性部材（２）でなさしめるものであり、得ら
れる精度と省スペース性において極めて有用な効果をも
たらす。もちろん、その取付においてもシール装置
（１）の装着完了によって正確に配置されるから取付工
程そのものを減じせしめる。According to the present invention, by providing the rotation detecting sensor (3) for emitting and receiving ultrasonic waves on the elastic member (2), it is possible to accurately detect the intensity of the reflection and the phase difference. And reliable rotation detection is realized. Further, the conventionally used highly accurate toothed rotor (6) can be replaced by the sealing member (1), and the rotor is easily formed by the elastic member (2). This has an extremely useful effect in the accuracy and space saving obtained. Needless to say, the mounting process itself can be reduced because the mounting is accurately performed by the completion of the mounting of the sealing device (1).
【００１１】[0011]
【図１】本発明の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】本発明の作用を示す略図である。FIG. 2 is a schematic diagram showing the operation of the present invention.
【図３】本発明の他の実施例を示す斜視断面図である。FIG. 3 is a perspective sectional view showing another embodiment of the present invention.
【図４】本発明を使用しない従来例を示す断面図であ
る。FIG. 4 is a sectional view showing a conventional example not using the present invention.
【００１２】[0012]
１ 密封部材 １ａ シール １ｂ スリンガー ２ 弾性部材 ３ 回転検出センサー ４ スリット DESCRIPTION OF SYMBOLS 1 Sealing member 1a Seal 1b Slinger 2 Elastic member 3 Rotation detection sensor 4 Slit
Claims (1)
いはスリンガー（１ｂ）等の密封部材（１）に取り付け
配置され、該軸受の回転運動を検出するための回転検出
装置において、前記密封部材（１）に合成ゴムあるいは
合成樹脂等からなる弾性部材（２）を等間隔をもって周
状に配設せしめ、該弾性部材（２）及び密封部材（１）
へ超音波発・受信装置からなる回転検出センサー（３）
を近接せしめて形成したことを特徴とした回転検出装
置。1. A rotation detecting device mounted on a sealing member (1) such as a seal (1a) or a slinger (1b) for sealing a bearing portion for detecting a rotational movement of the bearing. (1) An elastic member (2) made of synthetic rubber or synthetic resin or the like is circumferentially disposed at equal intervals, and the elastic member (2) and the sealing member (1) are arranged.
Rotation detection sensor consisting of ultrasonic transmitter / receiver (3)
A rotation detection device characterized by being formed close to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7552592A JP2826688B2 (en) | 1992-02-25 | 1992-02-25 | Rotation detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7552592A JP2826688B2 (en) | 1992-02-25 | 1992-02-25 | Rotation detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05232128A JPH05232128A (en) | 1993-09-07 |
| JP2826688B2 true JP2826688B2 (en) | 1998-11-18 |
Family
ID=13578736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7552592A Expired - Fee Related JP2826688B2 (en) | 1992-02-25 | 1992-02-25 | Rotation detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2826688B2 (en) |
-
1992
- 1992-02-25 JP JP7552592A patent/JP2826688B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05232128A (en) | 1993-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2618795B2 (en) | Seal assembly with a built-in rolling bearing sensor | |
| US5388916A (en) | Device for detecting the speed of rotation of automobile wheel | |
| JPH0530543U (en) | Bearing hub device | |
| US5850141A (en) | Annular speed sensor with a tone ring having both axial and radial magnetic fields | |
| US8075194B2 (en) | Wheel bearing with sensor | |
| EP0420041B1 (en) | Elastomer covered phonic wheel for detection of the speed of a rotating element | |
| JP2002286739A (en) | Rotor for rotary sensor | |
| GB2249397A (en) | Rotating speed detector | |
| US6232772B1 (en) | Device for measuring the rotation of a rotating element | |
| JP2596033Y2 (en) | Pack seal | |
| JP2004176827A (en) | Protective cap of bearing device for wheel | |
| US6918596B2 (en) | Seal with integrated sealing and rotation measuring capabilities | |
| JP2826688B2 (en) | Rotation detection device | |
| JP2816783B2 (en) | Bearing seal with rotation detection device | |
| US7336067B2 (en) | Sensor assembly, sealing device, and roller bearing apparatus for vehicles having integrated connector and ring | |
| US4932245A (en) | Magnetic ring mounting fixture | |
| JP2575069Y2 (en) | Wheel bearing seal | |
| JP2000162223A (en) | Rotational-speed detecting apparatus and wheel bearing device provided with the same | |
| JPH09297151A (en) | Measuring device for relative displacement and/or speed between races of rolling contact bearing | |
| JP2979362B2 (en) | Speed detector | |
| JP2570938Y2 (en) | Sealing device with rotation detector | |
| KR20050101549A (en) | Sensor assembly, seal device, and rolling bearing apparatus for vehicles | |
| JPH11344502A (en) | Bearing seal | |
| JP2559157Y2 (en) | Wheel bearing seal with rotation speed detection function | |
| JP2516588Y2 (en) | Bearing seal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |