JPH0635666U - Bearing with sensor - Google Patents
Bearing with sensorInfo
- Publication number
- JPH0635666U JPH0635666U JP7897392U JP7897392U JPH0635666U JP H0635666 U JPH0635666 U JP H0635666U JP 7897392 U JP7897392 U JP 7897392U JP 7897392 U JP7897392 U JP 7897392U JP H0635666 U JPH0635666 U JP H0635666U
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- Prior art keywords
- sensor
- outer ring
- bearing
- strain gauge
- groove
- Prior art date
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
(57)【要約】
【目的】 歪ゲ−ジ等の検出素子も汚染されにくく且つ
歪ゲ−ジの貼付等検出回路構成のための加工も簡単で精
度の良いセンサ−付軸受を提供すること。
【構成】 静止側の外輪１若しくは内輪の軌道面に凹溝
４を形成し、該凹溝４に検出素子（ゲ−ジ５又はセンサ
−コイル８）を配置固定し、更に該凹溝より検出回路へ
通じる配線用孔６を穿設したことを特徴とするセンサ−
付軸受。
(57) [Abstract] [Purpose] To provide a sensor-equipped bearing which is not easily contaminated with a detection element such as a strain gauge, and which is easy to process for forming a detection circuit such as attaching a strain gauge, and has high accuracy. . [Structure] A groove 4 is formed on a raceway surface of a stationary outer ring 1 or an inner ring, a detection element (gauge 5 or sensor coil 8) is arranged and fixed in the groove 4, and detection is performed from the groove. A sensor characterized in that a wiring hole 6 leading to a circuit is formed.
Bearing.
Description
【０００１】[0001]
この考案は、玉軸受やころ軸受等の軸受が回転時に受ける荷重、回転速度、異 常振動等を検出することの出来るセンサ−付軸受に関する。 The present invention relates to a sensor-equipped bearing capable of detecting a load, a rotation speed, an abnormal vibration, etc., which a bearing such as a ball bearing or a roller bearing receives during rotation.
【０００２】[0002]
スピンドルや駆動軸等回転軸の回転速度を検出する場合、一般的な方法として は図１１に示すように回転軸２０にエンコ−ダ２１を取付けて測定することが多 い。また回転軸２０を軸支する軸受２２或いは２３に回転中にかかる荷重、回転 数、振動数等を測定する場合には、図１０に示すように、外輪３１のラジアル側 に歪ゲ−ジ５を貼付（内輪３２回転時）するか或いはスラスト側に歪ゲ−ジ５を 貼付して測定する。その他外輪或いは内輪にかかる荷重を測定する手段としては 、内輪内周面か外輪外周面の軌道に対向する位置に凹部を設けこの凹部の側壁に 径方向の歪を検出する応力センサを取り付けることを特徴とするセンサ付きころ がり軸受（実開昭６４−５３６１７号）、或いは軸受固定輪の反軌道側周面の歪 ゲ−ジ取付位置に絶縁層を設け、その上に金属層を設け、該金属層に歪ゲ−ジ抵 抗体パタ−ンを設けてセンサ−部を形成し、該センサ−部に引出線を接続し、更 にその上に絶縁被覆層を設けてなるセンサ−付軸受（実開平２−１２４３２２号 ）、更には同様な考案として実開平２−１２４３２１、実開平２−１２４３２３ に開示されているものが知られている。更にこの種のセンサ−付軸受として、円 周方向と軸方向に歪ゲ−ジを貼付し、温度測定と回転速度と異常振動検出セんサ −等を平行して測定可能な発明としては特開平１−２０６１１３号で開示されて いるものが知られている。 When detecting the rotational speed of a rotary shaft such as a spindle or a drive shaft, as a general method, an encoder 21 is often attached to the rotary shaft 20 as shown in FIG. 11 for measurement. When the load, rotation speed, or vibration frequency applied to the bearing 22 or 23 that supports the rotating shaft 20 during rotation is measured, as shown in FIG. 10, the strain gauge 5 is applied to the radial side of the outer ring 31. (When the inner ring is rotating 32 times) or the strain gauge 5 is attached to the thrust side for measurement. As another means for measuring the load applied to the outer ring or inner ring, a recess is provided at a position facing the track on the inner ring inner peripheral surface or outer ring outer peripheral surface, and a stress sensor for detecting radial strain is attached to the side wall of this recess. A rolling bearing with a sensor (Actual No. 64-53617) or an insulating layer is provided at the strain gauge mounting position on the anti-raceway side peripheral surface of the bearing fixed ring, and a metal layer is provided on the insulating layer. A sensor-equipped bearing in which a strain gauge resistor antibody pattern is provided on a metal layer to form a sensor portion, a lead wire is connected to the sensor portion, and an insulating coating layer is further provided thereon ( Japanese Utility Model Application Laid-Open No. 2-124322), and as similar inventions, those disclosed in Japanese Utility Model Laid-Open No. 2-124321 and Japanese Utility Model Laid-Open No. 2-124323 are known. Furthermore, as this type of sensor-equipped bearing, strain gauges are attached in the circumferential direction and the axial direction, and it is a special invention that can measure temperature, rotation speed, and abnormal vibration detection sensor in parallel. The one disclosed in Kaihei 1-206113 is known.
【０００３】[0003]
上記するように図１０に示すタイプのセンサ−付軸受でラジアル側に歪ゲ−ジ ５を貼付した軸受はハウジングに嵌合する際位置合わせをしなければならないた め圧入しにくく、スラスト側に歪ゲ−ジ５を貼付した場合は応力変化の感度が悪 くなる傾向があり正確な検出が困難である。また外輪外周側或いは内輪内周側に 歪ゲ−ジを貼付するセンサ−付軸受はダストや潤滑油飛沫等がかかりやすく異物 に触れる可能性があり精度も低下する恐れがある。更にゲ−ジの貼付作業や配線 作業等センサ−構成に要する加工が大掛かりとなる傾向がある。この考案はかか る課題に鑑みてなされたものであり、その目的とする所は歪ゲ−ジも汚染されに くく且つゲ−ジの貼付等センサ−構成のための加工も簡単で出力も良いセンサ− 付軸受を提供することにある。 As described above, a bearing with a sensor of the type shown in FIG. 10 with a strain gauge 5 attached to the radial side must be aligned when it is fitted into the housing, so it is difficult to press fit, and the bearing on the thrust side is difficult to fit. When the strain gauge 5 is attached, the sensitivity of stress change tends to be poor, and accurate detection is difficult. In addition, a sensor-equipped bearing in which a strain gauge is attached to the outer circumference of the outer ring or the inner circumference of the inner ring is prone to dust, lubricant oil splashes, etc., and may come into contact with foreign matter, which may reduce accuracy. Further, the work required for the sensor construction such as the work for attaching the gauge and the work for wiring tends to become large. The present invention has been made in view of the above problems, and its purpose is to prevent strain gauges from being contaminated, and to easily attach the gauges to the sensor structure for output. To provide a good sensor bearing.
【０００４】[0004]
即ち、この考案は上記する課題を解決するために、センサ−付軸受が、静止側 の外輪若しくは内輪の軌道面に凹溝を形成し、該凹溝に検出素子を配置固定し、 更に該凹溝より検出回路へ通じる配線用孔を穿設したことを特徴とする。 That is, in order to solve the above-mentioned problems, this invention has a sensor-equipped bearing in which a groove is formed on the raceway surface of a stationary outer ring or inner ring, and a detecting element is arranged and fixed in the groove. It is characterized in that a wiring hole communicating from the groove to the detection circuit is formed.
【０００５】[0005]
センサ−付軸受を上記手段とした場合の作用について添付図により説明する。 即ち、図１乃至図４の実施例で示したように、静止側となる外輪１（或いは内 輪）の軌道面に凹溝４を形成しここに検出素子として歪ゲ−ジ５を貼付し該歪ゲ −ジでブリッジ回路等の検出回路を形成すれば回転時の外輪１（或いは内輪）に 生じる応力や回転数或いは異常振動等の測定が可能となる。 また図５乃至図６の実施例で示したように、静止側となる外輪１（或いは内輪 ）軌道面に形成した凹溝４に検出素子としてコイル８を配置固定して高周波発振 形の検出回路を形成すれば、コイルのインダクタンスが変化するのを利用して回 転時の外輪１（或いは内輪）に生じる応力や異常振動或いは回転数を検出するボ −ル等転動体の周期的移動により生じる応力や回転数或いは異常振動等の測定が 可能となる。 The operation when the sensor-equipped bearing is used as the above means will be described with reference to the accompanying drawings. That is, as shown in the embodiment of FIGS. 1 to 4, a groove 4 is formed on the raceway surface of the outer ring 1 (or the inner ring) on the stationary side, and a strain gauge 5 is attached as a detection element thereto. By forming a detection circuit such as a bridge circuit with the strain gauge, it is possible to measure the stress generated in the outer ring 1 (or the inner ring) during rotation, the number of revolutions, abnormal vibration, or the like. Further, as shown in the embodiments of FIGS. 5 to 6, a coil 8 as a detection element is fixedly arranged in a groove 4 formed in the raceway surface of the outer ring 1 (or inner ring) on the stationary side, and a high frequency oscillation type detection circuit is provided. When the coil is formed, it is generated by the cyclic movement of rolling elements such as balls that detect the stress and abnormal vibration generated in the outer ring 1 (or inner ring) during rotation by utilizing the change in the inductance of the coil, or the rotational speed. It is possible to measure stress, rotation speed, abnormal vibration, etc.
【０００６】[0006]
以下、この考案の具体的実施例について図面を参照して説明する。 図１はこの考案のセンサ−付軸受の実施例であって軸方向断面図を示す。この 実施例では外輪１を静止側（固定側）としてハウジング（図示せず）に圧入嵌合 し、該外輪１と内輪２との間にボ−ル３を配置し（保持器は省略）回転させるよ うにしたものである。この場合、静止側である外輪１の内周側軌道面に凹溝（凹 部）４を形成して断面コの字形とし、この凹溝側壁に応力検出用の素子として歪 ゲ−ジ５を貼付し、そして該歪ゲ−ジ５を貼付した位置の近傍に外側へ通じる孔 ６を穿設し、該孔６に歪ゲ−ジ５に接続した配線７を通して検出回路（図示せず ）へ接続するようにしてある。尚、図１では凹溝４は軌道面１ａ全周に渡って形 成され、歪ゲ−ジ５はその溝の一部に貼付されるが、これは加工上の都合（加工 のしやすさ）によるものである。従って歪ゲ−ジ５を貼付する凹溝４は全周とす る必要はなく軌道面の一部が窪んだ凹部としても良い。 Hereinafter, a specific embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an axial sectional view of an embodiment of a bearing with a sensor of the present invention. In this embodiment, the outer ring 1 is press-fitted into a housing (not shown) with the stationary side (fixed side), and the ball 3 is arranged between the outer ring 1 and the inner ring 2 (the cage is omitted) to rotate. I was allowed to do it. In this case, a concave groove (concave portion) 4 is formed in the inner peripheral side raceway surface of the outer ring 1 on the stationary side to have a U-shaped cross section, and a strain gauge 5 is provided on the side wall of the concave groove as an element for stress detection. A hole 6 communicating with the strain gauge 5 is formed near the position where the strain gauge 5 is stuck, and the hole 6 is connected to a detection circuit (not shown) through a wire 7 connected to the strain gauge 5. I am trying to connect. In addition, in FIG. 1, the concave groove 4 is formed over the entire circumference of the raceway surface 1a, and the strain gauge 5 is attached to a part of the groove. This is because of processing convenience (ease of processing). ). Therefore, the concave groove 4 to which the strain gauge 5 is attached does not have to be the entire circumference, and may be a concave portion in which a part of the raceway surface is depressed.
【０００７】 図２は検出素子としての歪ゲ−ジ５を凹溝４の底面に貼付した場合の実施例を 示す。このように歪ゲ−ジ５は凹溝４の側面だけでなく底面に貼付しても良い。FIG. 2 shows an embodiment in which a strain gauge 5 as a detecting element is attached to the bottom surface of the concave groove 4. Thus, the strain gauge 5 may be attached not only to the side surface of the concave groove 4 but also to the bottom surface.
【０００８】 次に、図３は前記歪ゲ−ジ５の配置例である。この図に示すように、図１の凹 溝４側面に貼付した歪ゲ−ジ５は径方向の応力を測定する歪ゲ−ジ５ａと、円周 方向の応力を測定する歪ゲ−ジ５ｂとを相互に直角方向に張り合わせたものを用 いても良い。勿論いずれか片側方向に生じる応力のみを測定するものであっても 良い。但し、図では配線７は一本しか示していないが歪ゲ−ジ５ａ、５ｂに接続 された配線はそれぞれ外輪１外側側面に複数の孔を穿設して別々に通すようにし てもよい。そして二つの歪ゲ−ジ５ａと５ｂとは検出回路としていわゆるブリッ ジ回路の隣接する位置にそれぞれ接続し応力、振動等を検出する。尚、図２に示 すように、組合せた歪ゲ−ジ５を凹溝４の底部に貼付した場合、円周方向の応力 と軸方向の応力を測定することになる。Next, FIG. 3 shows an arrangement example of the strain gauge 5. As shown in this figure, the strain gauge 5 attached to the side surface of the concave groove 4 in FIG. 1 has a strain gauge 5a for measuring the stress in the radial direction and a strain gauge 5b for measuring the stress in the circumferential direction. It is also possible to use a product in which and are attached to each other at right angles. Of course, only the stress generated in one of the directions may be measured. However, although only one wiring 7 is shown in the figure, the wirings connected to the strain gauges 5a and 5b may be provided with a plurality of holes respectively on the outer side surface of the outer ring 1 so as to pass separately. The two strain gauges 5a and 5b are respectively connected to adjacent positions of a so-called bridge circuit as a detection circuit to detect stress, vibration and the like. As shown in FIG. 2, when the combined strain gauge 5 is attached to the bottom of the groove 4, the stress in the circumferential direction and the stress in the axial direction are measured.
【０００９】 図４はこの考案の更に別の変形実施例であって、内輪２を静止側（固定側）と し外輪１を回転側とした場合の実施例である。このように内輪２が静止側の場合 には該内輪２軌道面に凹溝４を形成し、側面或いは底面に歪ゲ−ジ５を貼付して 応力を測定することが出来る。FIG. 4 shows another modified embodiment of the present invention in which the inner ring 2 is the stationary side (fixed side) and the outer ring 1 is the rotating side. In this way, when the inner ring 2 is stationary, the groove 4 is formed on the raceway surface of the inner ring 2 and the strain gauge 5 is attached to the side surface or the bottom surface to measure the stress.
【００１０】 次に、図５はこの考案の他の実施例であり、図６は図５のＡ−Ａ矢視断面図で ある。この実施例は、静止側である外輪１の内周側軌道面に凹溝（凹部）４を形 成して断面コの字形とし、該凹溝４に検出素子としてセンサ−コイル８を配置固 定し配線用の孔９、１０を穿設して図７に示すような高周波発振形の検出回路を 構成させるものである。即ち、この検出回路ではボ−ル３が通過すると、外輪１ を押し広げる力が加わり、この応力により外輪１の透磁率が変わり磁気抵抗が周 期的に変化したり、或いはボ−ル３の通過により周期的に磁気抵抗が変化する等 によりインダクタンスが変化するのを利用して外輪１に生じる応力を検出したり 、回転数を検出したり、異常振動を検出するものである。Next, FIG. 5 shows another embodiment of the present invention, and FIG. 6 is a sectional view taken along the line AA of FIG. In this embodiment, a concave groove (concave) 4 is formed on the inner peripheral side raceway surface of the outer ring 1 on the stationary side to have a U-shaped cross section, and a sensor coil 8 is arranged in the concave groove 4 as a detection element. By forming holes 9 and 10 for fixed wiring, a high frequency oscillation type detection circuit as shown in FIG. 7 is constructed. That is, in this detection circuit, when the ball 3 passes, a force is applied to push the outer ring 1 apart, and this stress changes the magnetic permeability of the outer ring 1 and changes the magnetic resistance periodically, or the ball 3 moves. Utilizing the fact that the inductance changes due to a periodic change in magnetic resistance due to passage, the stress generated in the outer ring 1, the rotational speed, and the abnormal vibration are detected.
【００１１】 尚、図５及び図６の実施例ではコイル８は外輪１の軌道面に設けた凹溝４に全 周にわたって配置したが、凹溝の半周程度にコイル８を配置固定しても良い。 また、別の実施例として図８に示すように外輪１に凹溝４に通じる二つの孔を 穿設し外輪１の一部を鉄心となるようコイル８を巻き、該コイル８を図７に示す 高周波発振形の検出回路のセンサ−コイルとしても良いが、この場合透磁率が大 きくなりセンサ−コイルとしてはより鋭敏となる。 更に、図９に示すように外輪１の内周側の一部に凹部４' を形成しここにコイ ル８を配置固定し、同様に該コイル８を図７に示す高周波発振形の検出回路のセ ンサ−コイルとしても良い。In the embodiment shown in FIGS. 5 and 6, the coil 8 is arranged in the groove 4 provided on the raceway surface of the outer ring 1 over the entire circumference, but the coil 8 may be arranged and fixed about half the circumference of the groove. good. As another embodiment, as shown in FIG. 8, two holes communicating with the groove 4 are bored in the outer ring 1 and a coil 8 is wound so that a part of the outer ring 1 serves as an iron core. The sensor coil of the high-frequency oscillation type detection circuit shown may be used, but in this case, the magnetic permeability becomes large and the sensor coil becomes more sensitive. Further, as shown in FIG. 9, a concave portion 4'is formed in a part of the inner peripheral side of the outer ring 1 and a coil 8 is arranged and fixed therein. Similarly, the coil 8 is connected to the high frequency oscillation type detection circuit shown in FIG. It may be used as a sensor coil.
【００１２】 この考案にかかるセンサ−付軸受の構成は以上のようであるが、次にその作用 について説明する。 図１乃至図４の実施例で示したように、静止側となる外輪１（或いは内輪）の 軌道面に凹溝４を形成しここに検出素子として歪ゲ−ジ５を貼付し該歪ゲ−ジで ブリッジ回路等の検出回路を形成すれば回転時の外輪１（或いは内輪）に生じる 応力や回転数或いは異常振動等の測定が可能となる。 また図５乃至図９の実施例で示したように、静止側となる外輪１（或いは内輪 ）軌道面に形成した凹溝４に検出素子としてコイル８を配置固定して高周波発振 形の検出回路を形成すれば、コイルのインダクタンスが変化するのを利用して回 転時の外輪１（或いは内輪）に生じる応力や異常振動或いは回転数を検出するボ −ル等転動体の周期的移動により生じる応力や回転数或いは異常振動等の測定が 可能となる。The structure of the sensor-equipped bearing according to the present invention is as described above. Next, its operation will be described. As shown in the embodiments of FIGS. 1 to 4, a concave groove 4 is formed on the raceway surface of the outer ring 1 (or the inner ring) on the stationary side, and a strain gauge 5 is attached as a detection element to the concave groove 4. -If a detection circuit such as a bridge circuit is formed by the circuit, it is possible to measure the stress generated in the outer ring 1 (or the inner ring) at the time of rotation, the rotational speed, or the abnormal vibration. Further, as shown in the embodiments of FIGS. 5 to 9, a coil 8 as a detection element is fixedly arranged in a groove 4 formed in the raceway surface of the outer ring 1 (or inner ring) on the stationary side, and a high frequency oscillation type detection circuit is provided. When the coil is formed, it is generated by the cyclic movement of rolling elements such as balls that detect the stress and abnormal vibration generated in the outer ring 1 (or inner ring) during rotation by utilizing the change in the inductance of the coil, or the rotational speed. It is possible to measure stress, rotation speed, abnormal vibration, etc.
【００１３】 この考案では軸受にかかる荷重や回転数或いは異常振動等を検出するため軸受 の外輪１や内輪２の軌道面に凹溝４を形成しここに歪ゲ−ジ５やコイル８をセン サ−として配置するようにしたが、この考案は軸受だけでなく例えば遊星ロ−ラ の外輪或いは遊星歯車と噛合する太陽歯車等の遊星ロ−ラ機構や遊星歯車機構の 静止部にも同様に利用することが出来る。In this invention, in order to detect the load applied to the bearing, the number of revolutions, abnormal vibration, etc., a groove 4 is formed in the raceway surface of the outer ring 1 and the inner ring 2 of the bearing, and a strain gauge 5 and a coil 8 are installed in the groove 4. However, this invention is not limited to bearings, but may be applied to not only bearings but also planetary roller mechanisms such as the outer ring of a planetary roller or a sun gear that meshes with a planetary gear, or the stationary portion of a planetary gear mechanism. It can be used.
【００１４】[0014]
この考案のセンサ−付軸受は以上詳述したような構成としたので、センサ−付 軸受であってもハウジングに嵌合圧入する際位置合わせ等の面倒な作業を必要と せず、歪ゲ−ジやコイルを設置するための加工作業や配線作業等も簡単となる。 また、検出回路を構成する歪ゲ−ジやコイルは、静止側の外輪或いは内輪の軌 道面に形成される凹溝に設置されるのでこれら歪ゲ−ジやコイルは内蔵される形 となりコンパクトで感度も良く且つダストや潤滑油飛沫或いは異物に触れにくく なり、耐環境性は極めて良くなる。 Since the sensor-equipped bearing of the present invention is configured as described above in detail, even if the sensor-equipped bearing is used, no troublesome work such as positioning is required when fitting and press-fitting into the housing, and the strain gauge bearing is not required. This also simplifies the processing work and wiring work for installing the coil and coil. In addition, the strain gauges and coils that make up the detection circuit are installed in the grooves formed on the track surface of the stationary outer ring or inner ring, so these strain gauges and coils are built-in and compact. The sensitivity is good, and it is difficult to touch dust, lubricant oil splashes, or foreign matter, and the environment resistance is extremely good.
【図１】この考案のセンサ−付軸受の実施例であって軸
方向断面図を示す。FIG. 1 is an axial sectional view showing an embodiment of a bearing with a sensor of the present invention.
【図２】この考案のセンサ−付軸受を構成する検出素子
としての歪ゲ−ジを外輪の軌道面に形成した凹溝の底面
に貼付した場合の実施例を示す図である。FIG. 2 is a diagram showing an embodiment in which a strain gauge as a detection element constituting the sensor-equipped bearing of the present invention is attached to the bottom surface of a concave groove formed in the raceway surface of the outer ring.
【図３】この考案のセンサ−付軸受を構成する検出素子
としての歪ゲ−ジの配置例を示す図である。FIG. 3 is a diagram showing an arrangement example of a strain gauge as a detection element constituting the sensor-equipped bearing of the present invention.
【図４】この考案のセンサ−付軸受の変形実施例を示す
図である。FIG. 4 is a view showing a modified embodiment of the sensor-equipped bearing of the present invention.
【図５】この考案のセンサ−付軸受の更に別の変形実施
例を示す図である。FIG. 5 is a view showing still another modified embodiment of the sensor-equipped bearing of the present invention.
【図６】図５のＡ−Ａ矢視断面図である。6 is a sectional view taken along the line AA of FIG.
【図７】この考案のセンサ−付軸受を構成する検出回路
である高周波発振形の回路図である。FIG. 7 is a circuit diagram of a high-frequency oscillation type which is a detection circuit constituting the sensor-equipped bearing of the present invention.
【図８】この考案のセンサ−付軸受の変形実施例を示す
図であって外輪の一部を鉄心として検出素子のコイルを
巻き高周波発振形の検出回路とした例を示す図である。FIG. 8 is a view showing a modified embodiment of the sensor-equipped bearing of the present invention, and is a view showing an example of a high-frequency oscillation type detection circuit in which a coil of the detection element is wound with a part of the outer ring as an iron core.
【９】この考案のセンサ−付軸受の変形実施例を示す図
であって外輪の軌道面に凹部を形成しここに検出素子の
コイルを配置し高周波発振形の検出回路とした例を示す
図である。FIG. 9 is a diagram showing a modified embodiment of the sensor-equipped bearing of the present invention, showing an example of a high-frequency oscillation type detection circuit in which a recess is formed in the raceway surface of the outer ring and the coil of the detection element is arranged there. Is.
【図１０】従来のセンサ−付軸受を構成する検出素子と
しての歪ゲ−ジを外輪の外周面或いは側面に貼付した場
合の例を示す図である。FIG. 10 is a diagram showing an example in which a strain gauge as a detection element constituting a conventional bearing with a sensor is attached to an outer peripheral surface or a side surface of an outer ring.
【図１１】軸受で軸支された回転軸の回転数を計測する
場合の概略図である。FIG. 11 is a schematic diagram for measuring the number of rotations of a rotating shaft that is supported by bearings.
１ 外輪 ２ 内輪 ３ ボ−ル ４ 凹溝 ５ 歪ゲ−ジ ６ 孔 ７ 配線 ８ コイル ９、１０ 孔 1 Outer Ring 2 Inner Ring 3 Ball 4 Recessed Groove 5 Strain Gage 6 Hole 7 Wiring 8 Coil 9, 10 Hole
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年４月１４日[Submission date] April 14, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図面の簡単な説明[Name of item to be corrected] Brief description of the drawing
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図面の簡単な説明】[Brief description of drawings]
【図１】この考案のセンサ−付軸受の実施例であって軸
方向断面図を示す。FIG. 1 is an axial sectional view showing an embodiment of a bearing with a sensor of the present invention.
【図２】この考案のセンサ−付軸受を構成する検出素子
としての歪ゲ−ジを外輪の軌道面に形成した凹溝の底面
に貼付した場合の実施例を示す図である。FIG. 2 is a diagram showing an embodiment in which a strain gauge as a detection element constituting the sensor-equipped bearing of the present invention is attached to the bottom surface of a concave groove formed in the raceway surface of the outer ring.
【図３】この考案のセンサ−付軸受を構成する検出素子
としての歪ゲ−ジの配置例を示す図である。FIG. 3 is a diagram showing an arrangement example of a strain gauge as a detection element constituting the sensor-equipped bearing of the present invention.
【図４】この考案のセンサ−付軸受の変形実施例を示す
図である。FIG. 4 is a view showing a modified embodiment of the sensor-equipped bearing of the present invention.
【図５】この考案のセンサ−付軸受の更に別の変形実施
例を示す図である。FIG. 5 is a view showing still another modified embodiment of the sensor-equipped bearing of the present invention.
【図６】図５のＡ−Ａ矢視断面図である。6 is a sectional view taken along the line AA of FIG.
【図７】この考案のセンサ−付軸受を構成する検出回路
である高周波発振形の回路図である。FIG. 7 is a circuit diagram of a high-frequency oscillation type which is a detection circuit constituting the sensor-equipped bearing of the present invention.
【図８】この考案のセンサ−付軸受の変形実施例を示す
図であって外輪の一部を鉄心として検出素子のコイルを
巻き高周波発振形の検出回路とした例を示す図である。FIG. 8 is a view showing a modified embodiment of the sensor-equipped bearing of the present invention, and is a view showing an example of a high-frequency oscillation type detection circuit in which a coil of the detection element is wound with a part of the outer ring as an iron core.
【図９】この考案のセンサ−付軸受の変形実施例を示す
図であって外輪の軌道面に凹部を形成しここに検出素子
のコイルを配置し高周波発振形の検出回路とした例を示
す図である。FIG. 9 is a view showing a modified embodiment of the sensor-equipped bearing of the present invention, showing an example of a high-frequency oscillation type detection circuit in which a recess is formed in the raceway surface of the outer ring and the coil of the detection element is arranged therein. It is a figure.
【図１０】従来のセンサ−付軸受を構成する検出素子と
しての歪ゲ−ジを外輪の外周面或いは側面に貼付した場
合の例を示す図である。FIG. 10 is a diagram showing an example in which a strain gauge as a detection element constituting a conventional bearing with a sensor is attached to an outer peripheral surface or a side surface of an outer ring.
【図１１】軸受で軸支された回転軸の回転数を計測する
場合の概略図である。FIG. 11 is a schematic diagram for measuring the number of rotations of a rotating shaft that is supported by bearings.
【符号の説明】 １ 外輪 ２ 内輪 ３ ボ−ル ４ 凹溝 ５ 歪ゲ−ジ ６ 孔 ７ 配線 ８ コイル ９、１０ 孔[Explanation of reference symbols] 1 outer ring 2 inner ring 3 ball 4 concave groove 5 strain gauge 6 hole 7 wiring 8 coil 9 and 10 hole
Claims (1)
溝を形成し、該凹溝に検出素子を配置固定し、更に該凹
溝より検出回路へ通じる配線用孔を穿設したことを特徴
とするセンサ−付軸受。1. A ditch is formed on a raceway surface of an outer ring or an inner ring on a stationary side, a detection element is arranged and fixed in the ditch, and a wiring hole communicating from the ditch to a detection circuit is formed. Characteristic bearing with sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7897392U JPH0635666U (en) | 1992-10-19 | 1992-10-19 | Bearing with sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7897392U JPH0635666U (en) | 1992-10-19 | 1992-10-19 | Bearing with sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0635666U true JPH0635666U (en) | 1994-05-13 |
Family
ID=13676850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7897392U Pending JPH0635666U (en) | 1992-10-19 | 1992-10-19 | Bearing with sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0635666U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004059273A1 (en) * | 2002-12-26 | 2004-07-15 | Koyo Seiko Co., Ltd. | Hub unit with sensor |
| WO2008099562A1 (en) * | 2007-02-13 | 2008-08-21 | Nsk Ltd. | Bearing apparatus with lubricant diagnosis sensor and lubricant diagnosis sensor |
| JP4724974B2 (en) * | 2001-07-30 | 2011-07-13 | 日本精工株式会社 | Sensor and bearing device with sensor |
| CN113898667A (en) * | 2021-10-27 | 2022-01-07 | 北京石墨烯技术研究院有限公司 | Bearing structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0153617B2 (en) * | 1984-07-30 | 1989-11-15 | Nissei Plastics Ind Co | |
| JPH03103618A (en) * | 1989-09-14 | 1991-04-30 | Matsushita Electric Ind Co Ltd | Bearing |
| JP3123113B2 (en) * | 1991-05-20 | 2001-01-09 | 凸版印刷株式会社 | Injection molding |
-
1992
- 1992-10-19 JP JP7897392U patent/JPH0635666U/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0153617B2 (en) * | 1984-07-30 | 1989-11-15 | Nissei Plastics Ind Co | |
| JPH03103618A (en) * | 1989-09-14 | 1991-04-30 | Matsushita Electric Ind Co Ltd | Bearing |
| JP3123113B2 (en) * | 1991-05-20 | 2001-01-09 | 凸版印刷株式会社 | Injection molding |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4724974B2 (en) * | 2001-07-30 | 2011-07-13 | 日本精工株式会社 | Sensor and bearing device with sensor |
| WO2004059273A1 (en) * | 2002-12-26 | 2004-07-15 | Koyo Seiko Co., Ltd. | Hub unit with sensor |
| WO2008099562A1 (en) * | 2007-02-13 | 2008-08-21 | Nsk Ltd. | Bearing apparatus with lubricant diagnosis sensor and lubricant diagnosis sensor |
| CN113898667A (en) * | 2021-10-27 | 2022-01-07 | 北京石墨烯技术研究院有限公司 | Bearing structure |
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