JP2525795Y2 - Rotation speed detector - Google Patents
Rotation speed detectorInfo
- Publication number
- JP2525795Y2 JP2525795Y2 JP1990067403U JP6740390U JP2525795Y2 JP 2525795 Y2 JP2525795 Y2 JP 2525795Y2 JP 1990067403 U JP1990067403 U JP 1990067403U JP 6740390 U JP6740390 U JP 6740390U JP 2525795 Y2 JP2525795 Y2 JP 2525795Y2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- bearing
- fixed
- seal
- inner ring
- 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
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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7886—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted outside the gap between the inner and outer races, e.g. sealing rings mounted to an end face or outer surface of a 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
- 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
-
- 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
- F16C19/185—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 two raceways provided integrally on a part other than a race ring, e.g. a shaft or housing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案は、車輪等を支持する軸受において、回転速
度の検出に用いられる検出装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a detection device used for detecting a rotation speed in a bearing for supporting wheels and the like.
アンチロックブレーキシステム等を備える自動車にお
いては、車輪の回転速度を検出するために、第３図に示
すように、車輪のスピンドルに取付けた軸受31の外輪33
の外径面にパルサーリング34を取付け、これに対向させ
るセンサー35を軸受外部の固定部材36に取付けた構造が
とられている。In an automobile equipped with an anti-lock brake system or the like, as shown in FIG. 3, an outer ring 33 of a bearing 31 attached to a spindle of a wheel is used to detect a rotation speed of the wheel.
A pulsar ring 34 is attached to the outer diameter surface of the bearing, and a sensor 35 facing the pulsar ring 34 is attached to a fixing member 36 outside the bearing.
上記の構造では、軸受31が自動車の外側に露出するた
めに、走行中に泥水やダスト等が軸受内部に浸入しない
ように、軸受31の両端部に軸受シール37、38を設けてい
るが、従来これらの軸受シール37、38は、外輪33の内径
面と内輪32の外径面の間に圧入嵌合させて取付けてあ
る。In the above structure, since the bearing 31 is exposed to the outside of the automobile, bearing seals 37 and 38 are provided at both ends of the bearing 31 so that muddy water and dust do not enter the inside of the bearing during traveling. Conventionally, these bearing seals 37 and 38 are mounted by press fitting between the inner diameter surface of the outer ring 33 and the outer diameter surface of the inner ring 32.
上記の構造においては、軸受外輪33の外側の端部33a
を、軸受シール37を圧入するためにボール39の組み込み
位置より外側に大きく突出させる必要があるが、この部
分は、軸受の本来の機能としては無駄な部分であり、軸
受31の重量増加をもたらす欠点がある。このような軸受
31の重量増加は、自動車の車輪におけるばね下重量を大
きくし、操舵の応答性を悪くする不具合がある。In the above structure, the outer end 33a of the bearing outer ring 33 is provided.
It is necessary to protrude largely outside the mounting position of the ball 39 in order to press-fit the bearing seal 37, but this part is a useless part as the original function of the bearing, and increases the weight of the bearing 31. There are drawbacks. Such a bearing
The weight increase of 31 increases the unsprung weight of the wheels of the vehicle, and deteriorates steering response.
また、外輪33と内輪32の間の狭いすき間に軸受シール
37を組み込む必要があるため、スペース的に泥水やダス
トの浸入を完全に防止するシール構造をとることが難し
く、シールの選択や設計に制限を受けるという欠点があ
る。Also, a bearing seal is provided in a narrow gap between the outer ring 33 and the inner ring 32.
Since it is necessary to incorporate 37, it is difficult to take a seal structure that completely prevents infiltration of muddy water and dust in terms of space, and there is a drawback that the choice and design of the seal are limited.
そこで、この考案は、上記の欠点を解消し、軸受の重
量を軽減でき、しかもシール設計の自由度を大きくとれ
る回転速度検出装置を提供することを目的とする。Accordingly, an object of the present invention is to provide a rotation speed detecting device which can solve the above-mentioned drawbacks, can reduce the weight of the bearing, and can increase the degree of freedom of the seal design.
上記の課題を解決するためにこの考案は、内外輪間の
すき間をふさぐ軸受シールを外輪に固定した内輪回転型
の軸受に、該軸受の径方向の外部に固定したセンサーと
対向する円筒形のパルサーリングを内輪と一体回転する
ように取付けた回転速度検出装置において、上記軸受シ
ール取付け側の外輪端部をボール溝近傍で断ち切って内
輪端部よりも所要寸法短く形成し、上記軸受シールを円
筒部の一端にフランジ部を有する芯金と、そのフランジ
部に一体に取付けられた弾性シールとにより構成し、断
面コの字形の保持リングを上記内輪端部の外径面に固定
し、該保持リングの外周面に上記パルサーリングを固定
し、上記軸受シールの芯金の円筒部を上記外輪端部の外
径面に固定すると共に上記弾性シールを上記保持リング
の内壁に摺接せしめた構成としたものである。In order to solve the above-mentioned problem, the present invention provides an inner ring rotating type bearing in which a bearing seal for closing a gap between an inner and outer ring is fixed to an outer ring, and a cylindrical type opposed to a sensor fixed to a radial outside of the bearing. In the rotational speed detecting device in which the pulsar ring is mounted so as to rotate integrally with the inner ring, the outer ring end on the bearing seal mounting side is cut off in the vicinity of a ball groove so as to have a required dimension shorter than the inner ring end, and the bearing seal is cylindrical. A metal core having a flange portion at one end of the portion, and an elastic seal integrally attached to the flange portion, and a holding ring having a U-shaped cross section is fixed to the outer diameter surface of the inner ring end portion. The pulsar ring is fixed to the outer peripheral surface of the ring, the cylindrical portion of the core metal of the bearing seal is fixed to the outer diameter surface of the outer ring end, and the elastic seal is slidably contacted with the inner wall of the holding ring. It is obtained by the configuration.
上記の回転速度検出は、外輪端部が従来より短縮さ
れ、その短縮された外輪端部に軸受シールの芯金を固定
しているので、軸受の重量が軽減されると共に、軸受シ
ールの取付けスペースを大きくとることができる。In the rotation speed detection described above, the outer ring end is shorter than before, and the core metal of the bearing seal is fixed to the shortened outer ring end, so that the weight of the bearing is reduced and the mounting space for the bearing seal is reduced. Can be increased.
第１図及び第２図は、この考案を自動車の非駆動側の
車輪用軸受に適用した実施例を示している。FIGS. 1 and 2 show an embodiment in which the present invention is applied to a non-drive-side wheel bearing of an automobile.
図に示すように、内輪22に、車輪と連結された軸が挿
入され、外輪23が自動車に固定される。内輪22のボール
溝５と外輪23のボール溝６との間に２列のボール４、４
が介在され、これにより内輪22が回転支持される。As shown in the figure, a shaft connected to the wheel is inserted into the inner wheel 22, and the outer wheel 23 is fixed to the automobile. Two rows of balls 4, 4 between the ball groove 5 of the inner ring 22 and the ball groove 6 of the outer ring 23.
, Whereby the inner ring 22 is rotatably supported.
外輪23は、車体に固定するためのフランジ23bを備
え、奥側の端部23aは、ボール４を案内する奥側のボー
ル溝６の近傍部分で断ち切られ、その端部は内輪22の端
部より所要寸法短く形成される。断ち切られた端部23a
に軸受シール24（第２図参照）が取付けられる。The outer race 23 is provided with a flange 23b for fixing to the vehicle body, and the rear end 23a is cut off in the vicinity of the rear ball groove 6 for guiding the ball 4 and the end is formed at the end of the inner race 22. The required dimensions are shorter. Cut off end 23a
A bearing seal 24 (see FIG. 2) is attached to the shaft.
軸受シール24は、図２に示すように外輪23の端部23a
に圧入嵌合する芯金25と、その芯金25に取付けられる弾
性シール26とにより形成される。芯金25は円筒部25aと
その一端に内向きに形成されたフランジ部25bを有す
る。フランジ部25bはその途中に段部25cを有する。The bearing seal 24 is, as shown in FIG.
And a resilient seal 26 attached to the core bar 25. The core metal 25 has a cylindrical portion 25a and a flange portion 25b formed inward at one end thereof. The flange 25b has a step 25c in the middle.
前記外輪23の端部23aから外方へ突き出した内輪22の
部分の外径面に、断面コ字形の保持リング28の内周壁28
aが圧入嵌合され、その保持リング28の内面に上記弾性
シール26の３箇所のシールリップ27が摺接する。上記保
持リング28の外周壁28bの先端は、前記フランジ部25bの
段部25cに回転可能に嵌合される。An inner peripheral wall 28 of a retaining ring 28 having a U-shaped cross section is formed on an outer diameter surface of a portion of the inner
a is press-fitted, and three sealing lips 27 of the elastic seal 26 slide on the inner surface of the holding ring 28. The distal end of the outer peripheral wall 28b of the holding ring 28 is rotatably fitted to the step 25c of the flange 25b.
また、上記外周壁28bの外周面にパルサーリング29が
かしめ等により固定される。このパルサーリング29は、
例えば周方向に交互にＮ極とＳ極を形成した多相磁石が
用いられる。A pulsar ring 29 is fixed to the outer peripheral surface of the outer peripheral wall 28b by caulking or the like. This pulsar ring 29
For example, a multiphase magnet in which N poles and S poles are alternately formed in the circumferential direction is used.
上記シールリップ27の１つはガータスプリング30によ
り保持リング28の内周壁28aの内面に押圧される。One of the seal lips 27 is pressed against the inner surface of the inner peripheral wall 28a of the holding ring 28 by the garter spring 30.
また、前記外輪23と一体の固定部材13にセンサー14が
取付けられ、そのセンサー14が前記のパルサーリング29
の外周面に対向している。このセンサー14は、ホール素
子や磁気抵抗素子を内蔵したものが用いられ、パルサー
リング29の回転に伴う磁界の変化を検出して電圧変化と
して出力する。Further, a sensor 14 is attached to the fixed member 13 integral with the outer ring 23, and the sensor 14 is attached to the pulsar ring 29.
Is opposed to the outer peripheral surface of. The sensor 14 has a built-in Hall element or a magnetoresistive element, detects a change in a magnetic field accompanying rotation of the pulsar ring 29, and outputs the change as a voltage change.
その他、図中15は他方の軸受シール、16はボール保持
器であ。In addition, in the figure, 15 is the other bearing seal, and 16 is a ball retainer.
以上の実施例の構造によると、車輪と共に内輪22が回
転すると、保持リング28とパルサーリング29か一体で回
転するため、センサー14により車輪の回転速度を検出す
ることができる。According to the structure of the above embodiment, when the inner ring 22 rotates together with the wheel, the holding ring 28 and the pulsar ring 29 rotate integrally, so that the rotation speed of the wheel can be detected by the sensor 14.
上記構造では、第３図に示した従来構造のものに比べ
て外輪23の端部23aが短縮されるので、軸受の重量が軽
減され、軸受シール24の取付けスペースを広くとること
ができる。In the above structure, the end 23a of the outer race 23 is shorter than that of the conventional structure shown in FIG. 3, so that the weight of the bearing is reduced and the mounting space for the bearing seal 24 can be widened.
また、軸受シール24は外輪23の外側に装着されるた
め、その芯金25や弾性シール26を任意の形状に形成する
ことができ、泥水やダストに対して最適なシール構造を
設計することができる。In addition, since the bearing seal 24 is mounted outside the outer ring 23, the core metal 25 and the elastic seal 26 can be formed in an arbitrary shape, and an optimal seal structure for muddy water and dust can be designed. it can.
以上のように、この考案によれば、外輪の端部が短縮
されるので、軸受の重量を軽減することができる。ま
た、短縮された外輪端部の外径面に軸受シールの芯金を
固定したことにより、軸受シールを外輪の外側に露出さ
せることができる。これにより、シールの取付けスペー
スを大きくとることができると共に、シール性に優れた
シール構造の設計が自由にできる利点がある。As described above, according to the present invention, the end of the outer ring is shortened, so that the weight of the bearing can be reduced. In addition, since the core metal of the bearing seal is fixed to the outer diameter surface of the shortened outer ring end, the bearing seal can be exposed outside the outer ring. Accordingly, there is an advantage that a space for mounting the seal can be increased and a design of a seal structure having excellent sealability can be freely performed.
また、内輪端部の外径面に固定した保持リングの外周
面にパルサーリングを固定したことにより、内輪回転型
の軸受において、軸受の径方向外部に固定したセンサー
に対応することができる。In addition, since the pulsar ring is fixed to the outer peripheral surface of the holding ring fixed to the outer diameter surface of the inner ring end portion, the inner ring rotating type bearing can correspond to a sensor fixed to the radial outside of the bearing.
【図面の簡単な説明】 第１図はこの考案に係る実施例を示す断面図、第２図は
その要部の断面図、第３図は従来構造を示す断面図であ
る。 ４……ボール、５……ボール溝、６……ボール溝、13…
…固定部材、14……センサー、15……軸受シール、16…
…保持器、22……内輪、23……外輪、23a……端部、24
……軸受シール、25……芯金、26……弾性シール、27…
…シールリップ、28……保持リング、28a……内周壁、2
8b……外周壁、29……パルサーリング、30……ガータス
プリング。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing an embodiment according to the present invention, FIG. 2 is a sectional view of a main part thereof, and FIG. 3 is a sectional view showing a conventional structure. 4 ... ball, 5 ... ball groove, 6 ... ball groove, 13 ...
... Fixing member, 14 ... Sensor, 15 ... Bearing seal, 16 ...
... Cage, 22 ... Inner ring, 23 ... Outer ring, 23a ... End, 24
…… Bearing seal, 25 …… Core bar, 26 …… Elastic seal, 27…
... Seal lip, 28 ... Retaining ring, 28a ... Inner wall, 2
8b ... outer peripheral wall, 29 ... pulsar ring, 30 ... garter spring.
Claims (1)
輪に固定した内輪回転型の軸受に、該軸受の径方向の外
部に固定したセンサーと対向する円筒形のパルサーリン
グを内輪と一体回転するように取付けた回転速度検出装
置において、上記軸受シール取付け側の外輪端部をボー
ル溝近傍で断ち切って内輪端部よりも所要寸法短く形成
し、上記軸受シールを円筒部の一端にフランジ部を有す
る芯金と、そのフランジ部に一体に取付けられた弾性シ
ールとにより構成し、断面コの字形の保持リングを上記
内輪端部の外径面に固定し、該保持リングの外周面に上
記パルサーリングを固定し、上記軸受シールの芯金の円
筒部を上記外輪端部の外径面に固定すると共に上記弾性
シールを上記保持リングの内壁に摺接せしめたことを特
徴とする回転速度検出装置。An inner ring rotating type bearing in which a bearing seal for closing a gap between an inner ring and an outer ring is fixed to an outer ring, and a cylindrical pulsar ring opposed to a sensor fixed radially outside the bearing is integrally rotated with the inner ring. In the rotational speed detecting device mounted so that the outer ring end on the bearing seal mounting side is cut off in the vicinity of the ball groove and formed shorter than the inner ring end by a required dimension, and the bearing seal is provided with a flange at one end of the cylindrical portion. And a resilient seal integrally attached to a flange portion thereof. A holding ring having a U-shaped cross section is fixed to the outer diameter surface of the inner ring end, and the pulser is fixed to the outer circumferential surface of the holding ring. A rotational speed, wherein a ring is fixed, a cylindrical portion of the core metal of the bearing seal is fixed to an outer diameter surface of an end portion of the outer ring, and the elastic seal is slidably contacted with an inner wall of the holding ring. Detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990067403U JP2525795Y2 (en) | 1990-06-26 | 1990-06-26 | Rotation speed detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990067403U JP2525795Y2 (en) | 1990-06-26 | 1990-06-26 | Rotation speed detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0425024U JPH0425024U (en) | 1992-02-28 |
| JP2525795Y2 true JP2525795Y2 (en) | 1997-02-12 |
Family
ID=31600944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990067403U Expired - Fee Related JP2525795Y2 (en) | 1990-06-26 | 1990-06-26 | Rotation speed detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2525795Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009197975A (en) | 2008-02-25 | 2009-09-03 | Jtekt Corp | Bearing apparatus for axle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3012421C2 (en) * | 1980-03-29 | 1986-04-03 | SKF GmbH, 8720 Schweinfurt | Sealing arrangement, in particular for wheel bearing units for motor vehicles |
| JPS6421219A (en) * | 1987-07-16 | 1989-01-24 | Nippon Seiko Kk | Bearing assembly |
| JPH0519265Y2 (en) * | 1987-09-11 | 1993-05-20 |
-
1990
- 1990-06-26 JP JP1990067403U patent/JP2525795Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0425024U (en) | 1992-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3968857B2 (en) | Seal structure of rotation speed detector | |
| US4778286A (en) | Bearing assembly | |
| JP4318205B2 (en) | Rolling bearing for wheel and bearing device for semi-floating wheel provided with the same | |
| JPH0555070U (en) | Rotational speed detector for wheel bearings | |
| WO2014185458A1 (en) | Rolling bearing unit with combination seal ring | |
| WO2005116471A1 (en) | Vehicle bearing device | |
| JP2000289405A (en) | Combined seal ring with encoder | |
| JP2001082979A (en) | Rotating speed detecting device and wheel bearing device fitted with the device | |
| JP4333259B2 (en) | Rolling bearing unit with rotational speed detector | |
| JP3986570B2 (en) | Axle bearing device | |
| JP3656530B2 (en) | Combination seal ring with encoder and rolling bearing unit for wheel support incorporating this | |
| JP2005042866A5 (en) | ||
| JP4206550B2 (en) | Rolling bearing unit with rotational speed detector | |
| JPH09274051A (en) | Sealing device and rolling bearing unit provided with tone wheel | |
| JP2005133772A (en) | Seal device and rolling bearing device using the same | |
| JPH09251028A (en) | Rolling bearing unit with rotation speed detecting device | |
| JP4311091B2 (en) | Rolling bearing unit for wheel support with rotational speed detector | |
| JPH087143Y2 (en) | Rotational speed detector for wheel bearings | |
| JP4604388B2 (en) | Rolling bearing unit with combination seal ring with encoder | |
| JP2525795Y2 (en) | Rotation speed detector | |
| JP2542859Y2 (en) | Rotation speed detector | |
| JP2005030547A (en) | Rolling bearing unit with rotational speed detecting device | |
| JP2001301590A (en) | Drive wheel bearing device | |
| JP3834977B2 (en) | Rolling bearing unit with rotational speed detector | |
| JPH1048230A (en) | Bearing assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |