JP2533831B2 - Rolling bearing with sensor - Google Patents
Rolling bearing with sensorInfo
- Publication number
- JP2533831B2 JP2533831B2 JP15603893A JP15603893A JP2533831B2 JP 2533831 B2 JP2533831 B2 JP 2533831B2 JP 15603893 A JP15603893 A JP 15603893A JP 15603893 A JP15603893 A JP 15603893A JP 2533831 B2 JP2533831 B2 JP 2533831B2
- Authority
- JP
- Japan
- Prior art keywords
- strain gauge
- outer ring
- sensor
- rolling
- bearing
- 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 - Lifetime
Links
Classifications
-
- 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
- F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
- F16C19/522—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to load on the bearing, e.g. bearings with load sensors or means to protect the bearing against overload
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Rolling Contact Bearings (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、外輪外周に歪ゲージを
貼付し、歪ゲージの出力信号により軸受に加わる荷重を
検出するセンサー付転がり軸受に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rolling bearing with a sensor in which a strain gauge is attached to the outer periphery of an outer ring and a load applied to the bearing is detected by an output signal of the strain gauge.
【０００２】[0002]
【従来の技術】本出願人は先に特開平１−２０６１１３
号公報に示すようなセンサー付転がり軸受を発明した。
上記センサー付転がり軸受は、転がり軸受の外輪外周円
周方向に歪ゲージを貼付し、その出力信号により軸受に
加わる荷重を検出するようになっている。この出力信号
は転動体が通過する度に周期的に変化し、転がり軸受の
荷重を示すものであるが、変動成分を含むのでこれを取
り除くため歪ゲージの所定時間当りの出力を平均化回路
１２で平均するようにしている。2. Description of the Related Art The present applicant has previously filed Japanese Patent Application Laid-Open No. 1-206113.
Invented a rolling bearing with a sensor as shown in Japanese Patent Publication No.
In the above-mentioned rolling bearing with sensor, a strain gauge is attached in the outer circumferential direction of the outer circumference of the rolling bearing, and the load applied to the bearing is detected by the output signal thereof. The output signal varies periodically every time the rolling element passes, while indicating a load of the rolling bearing, preparative this because including variation components
Circuit for averaging the output of the strain gauge per predetermined time
I try to average with 12 .
【０００３】[0003]
【発明が解決しようとする課題】ところで上記従来技術
にあっては、出力信号は転動体位置変化による出力感度
の変化のため歪ゲージ位置に対する転動体位置を求めて
やらなければならず、転動体位置の検出装置を必要と
し、出力信号の補正に手間がかゝり不安定な境界値にお
ける誤差も大きくなるという問題点があった。In the above prior art, however, the output signal changes the output sensitivity due to the change in the rolling element position, so that the rolling element position with respect to the strain gauge position must be obtained. There is a problem in that a position detection device is required, it takes time to correct the output signal, and an error in an unstable boundary value becomes large.
【０００４】[0004]
【課題を解決するための手段】本発明は上記問題点を解
決することを目的とし、外輪に加わる歪み量が転動体間
隔角度に相当する間隔を１周期として増減を繰り返す点
に着目し、内外輪間に複数の転動体を等間隔に配置し
て、前記外輪外周に歪ゲージを貼付し、歪ゲージの出力
信号により軸受に加わる荷重を検出するセンサー付転が
り軸受に於て、歪ゲージは外輪外周円周方向に貼付し、
該歪ゲージの円周方向有効測定長さを外輪外周面におけ
る転動体間隔角度に相当する長さとしたことを特徴とす
る。ここで、転動体間隔角度とは、隣接する転動体の各
中心と軸受中心との角度である。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and the amount of strain applied to the outer ring is the difference between the rolling elements.
A point that repeats increase and decrease with the interval corresponding to the separation angle as one cycle
In the rolling bearing with a sensor, a plurality of rolling elements are arranged at equal intervals between the inner and outer races, a strain gauge is attached to the outer circumference of the outer race , and the load applied to the bearing is detected by the output signal of the strain gauge. , Strain gauge is attached to the outer circumference of the outer ring,
Set the effective measurement length of the strain gauge in the circumferential direction on the outer peripheral surface of the outer ring.
And characterized in that a length corresponding to a rolling element spacing angle that. Here, the rolling element spacing angle is the angle between each center of the adjacent rolling elements and the bearing center.
【０００５】[0005]
【作用】外輪に貼付した歪ゲージの長さは転動体間隔角
度に相当する長さとしてあるので転動体の通過に伴う出
力変調がなくなるので、歪ゲージ出力信号を時間や転動
体位置に関与しない一定係数で補正して軸に加わる荷重
を求めることができる。[Function] Since the length of the strain gauge attached to the outer ring is the length corresponding to the rolling element interval angle, the output modulation due to the passage of the rolling elements is eliminated, so the strain gauge output signal is not related to the time or the rolling element position. The load applied to the shaft can be calculated by correcting with a constant coefficient.
【０００６】[0006]
【実施例】次に図１、図２に示した本発明の一実施例に
ついて詳細に説明する。１は本発明センサー付転がり軸
受、２はその内輪、３は外輪、４は転動体で、上記外輪
３の外周円周方向に歪ゲージ５を貼付し、該歪ゲージ５
の外輪外周円周方向の長さ２πＲ／ｎを転動体間隔角度
２π／ｎに相当する長さとしている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the present invention shown in FIGS. 1 and 2 will be described in detail. Reference numeral 1 is a rolling bearing with a sensor of the present invention, 2 is its inner ring, 3 is an outer ring, and 4 is a rolling element. A strain gauge 5 is attached in the outer circumferential direction of the outer ring 3, and the strain gauge 5 is attached.
The outer ring outer circumferential circumference length of 2πR / n is set to a length corresponding to the rolling element spacing angle of 2π / n.
【０００７】次に作用について説明する。図３は軸受外
輪３の円周方向の歪量と、歪測定位置の関係を示す。歪
ゲージ５に作用する歪は、歪ゲージ５上にある転動体４
のみが作用するのではなく、各転動体４の荷重の影響を
受け、その影響の総和が夫々の位置に歪を生じさせる力
となる。軸受にアキシアル荷重のみが作用する場合、外
輪３の円周方向長さ２πＲ／ｎにおいて、どの位置にお
いても総歪量は等しくなる。軸に静的なアキシアル荷重
が作用する場合、歪測定有効長さ２πＲ／ｎの歪ゲージ
５を貼着した時の歪ゲージ出力信号は、転動体４の位置
変化にかゝわらず図３の如く一定となる。歪ゲージの出
力値の大きさは薄肉円環理論上において、軸に加わるア
キシアル荷重に比例した大きさとなるため、歪ゲージ出
力信号に時間や転動体位置に関与しないある一定の係数
で補正すれば軸に加わる荷重が求められる。Next, the operation will be described. FIG. 3 shows the relationship between the circumferential strain amount of the bearing outer ring 3 and the strain measurement position. The strain acting on the strain gauge 5 is the rolling element 4 on the strain gauge 5.
Not only does it act, but it is affected by the load of each rolling element 4, and the total of the effects becomes the force that causes distortion at each position. When only the axial load acts on the bearing, the total strain amount becomes equal at any position in the circumferential length 2πR / n of the outer ring 3. When a static axial load is applied to the shaft, the strain gauge output signal when the strain gauge 5 having a strain measurement effective length of 2πR / n is stuck is shown in FIG. 3 regardless of the position change of the rolling element 4. So it will be constant. The output value of the strain gauge is proportional to the axial load applied to the shaft in the thin-walled ring theory, so if the strain gauge output signal is corrected with a certain coefficient that is not related to time or the rolling element position. The load applied to the shaft is required.
【０００８】[0008]
【発明の効果】本発明によると、歪ゲージは外輪外周円
周方向に貼付し、該歪ゲージの外輪外周円周方向有効測
定長さを転動体間隔角度に相当する長さとしているの
で、歪ゲージ部分を転動体が常に同一状態で通過するの
で転動体通過に伴う出力信号の変調がなくなり、従来の
ように特別な信号処理がなくとも動的な荷重が直接検出
できる。According to the present invention, since the strain gauge is attached in the outer circumferential direction of the outer ring and the effective measurement length of the strain gauge in the outer circumferential direction of the outer ring is set to a length corresponding to the rolling element spacing angle, Since the rolling elements always pass through the gauge portion in the same state, the modulation of the output signal accompanying the passage of the rolling elements is eliminated, and the dynamic load can be directly detected without special signal processing as in the conventional case.
【図１】本発明の一実施例要部正面図である。FIG. 1 is a front view of a main part of an embodiment of the present invention.
【図２】本発明の歪ゲージ貼付方法の説明図である。FIG. 2 is an explanatory diagram of a strain gauge sticking method of the present invention.
【図３】本発明の各転動体による歪ゲージの歪量と総歪
量とのグラフである。FIG. 3 is a graph of strain amount and total strain amount of a strain gauge by each rolling element of the present invention.
１ センサー付転がり軸受 ２ 内輪 ３ 外輪 ４ 転動体 ５ 歪ゲージ 1 Rolling bearing with sensor 2 Inner ring 3 Outer ring 4 Rolling element 5 Strain gauge
───────────────────────────────────────────────────── フロントページの続き 審査官 秋月 均 (56)参考文献 特開 平１−206113（ＪＰ，Ａ) 実開 昭59−67617（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page Examiner Hitoshi Akizuki (56) References Japanese Patent Laid-Open No. 1-206113 (JP, A) Shoukai 59-67617 (JP, U)
Claims (1)
して、前記外輪外周に歪ゲージを貼付し、歪ゲージの出
力信号により軸受に加わる荷重を検出するセンサー付転
がり軸受に於て、歪ゲージは外輪外周円周方向に貼付
し、該歪ゲージの円周方向有効測定長さを外輪外周面に
おける転動体間隔角度に相当する長さとしたことを特徴
とするセンサー付転がり軸受。1. A rolling bearing with a sensor, wherein a plurality of rolling elements are arranged at equal intervals between an inner ring and an outer ring, a strain gauge is attached to the outer periphery of the outer ring, and a load applied to the bearing is detected by an output signal of the strain gauge. Then, the strain gauge is attached to the outer circumference of the outer ring, and the effective measurement length in the circumferential direction of the strain gauge is applied to the outer circumference of the outer ring.
A rolling bearing with a sensor, which has a length corresponding to the rolling element spacing angle in
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15603893A JP2533831B2 (en) | 1993-06-02 | 1993-06-02 | Rolling bearing with sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15603893A JP2533831B2 (en) | 1993-06-02 | 1993-06-02 | Rolling bearing with sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06341430A JPH06341430A (en) | 1994-12-13 |
| JP2533831B2 true JP2533831B2 (en) | 1996-09-11 |
Family
ID=15618967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15603893A Expired - Lifetime JP2533831B2 (en) | 1993-06-02 | 1993-06-02 | Rolling bearing with sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2533831B2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1287067C (en) * | 1988-02-15 | 1991-07-30 | Yasushi Shiraki | PRODUCTION OF LINEAR .alpha.-OLEFINS |
| DE10017572B4 (en) * | 2000-04-10 | 2008-04-17 | INSTITUT FüR MIKROTECHNIK MAINZ GMBH | Rolling bearings with remote sensing units |
| DE102004027800B4 (en) * | 2004-06-08 | 2006-04-06 | Fag Kugelfischer Ag & Co. Ohg | Method and computer program for determining operating parameters in a rolling bearing and evaluable rolling bearing hereby |
| FR2893106B1 (en) * | 2005-11-09 | 2008-01-04 | Snr Roulements Sa | DEFORMATION SENSOR BEARING COMPRISING AT LEAST THREE STRAIN GAUGES |
| DE102006016476A1 (en) | 2006-04-07 | 2007-11-08 | Schaeffler Kg | Rolling bearing with sensor |
| WO2009076988A1 (en) * | 2007-12-18 | 2009-06-25 | Ab Skf | Bearing and sensor unit |
| CN105753622B (en) | 2008-01-30 | 2019-01-29 | 林德股份公司 | The method for preparing linear alpha-alkene |
| DE102011085258A1 (en) * | 2011-10-26 | 2013-05-02 | Aktiebolaget Skf | Bearing ring, bearing ring segment, bearing and method for setting a preload of a rolling bearing |
| DE102011085415B4 (en) * | 2011-10-28 | 2013-07-18 | Aktiebolaget Skf | Arrangement of two rotating components |
| JP6986050B2 (en) * | 2019-06-21 | 2021-12-22 | ミネベアミツミ株式会社 | Bearing monitoring device, bearing monitoring method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5967617U (en) * | 1982-10-29 | 1984-05-08 | 株式会社東芝 | bearing protection device |
| JPH06100222B2 (en) * | 1988-02-12 | 1994-12-12 | 工業技術院長 | Rolling bearing |
-
1993
- 1993-06-02 JP JP15603893A patent/JP2533831B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06341430A (en) | 1994-12-13 |
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