JPH0429131Y2 - - Google Patents
Info
- Publication number
- JPH0429131Y2 JPH0429131Y2 JP1986123798U JP12379886U JPH0429131Y2 JP H0429131 Y2 JPH0429131 Y2 JP H0429131Y2 JP 1986123798 U JP1986123798 U JP 1986123798U JP 12379886 U JP12379886 U JP 12379886U JP H0429131 Y2 JPH0429131 Y2 JP H0429131Y2
- Authority
- JP
- Japan
- Prior art keywords
- brush
- shield
- groove
- current
- annular groove
- 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
Links
- 238000007789 sealing Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 238000007667 floating Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
- F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
- F16C33/7846—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with a gap between the annular disc and the 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
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/002—Conductive elements, e.g. to prevent static electricity
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、通電軸受、さらに詳しくは、相対
的に回転する内輪と外輪の間の通電が可能なラジ
アルころがり軸受に関する。[Detailed Description of the Invention] Industrial Application Field This invention relates to a current-carrying bearing, and more particularly to a radial rolling bearing that allows current to flow between an inner ring and an outer ring that rotate relatively.
従来の技術とその問題点
通電軸受は、静電気除去のために接地の必要な
現金自動支払機（ATM）の紙幣搬送用のローラ
軸やビデオテープレコーダ（VTR）のローラ軸、
各種スイツチ類を取付けるために通電の必要な自
動車のステアリングシヤフトなどに使用される。Conventional technology and its problems Current-carrying bearings are used in the roller shafts of automated teller machines (ATMs) for transporting banknotes, video tape recorders (VTRs), etc., which require grounding to eliminate static electricity.
Used in automobile steering shafts that require electricity to attach various switches.
このような通電軸受として、外輪の内周面には
め止められた略Ｃ形の止め輪型通電ブラシの両端
部が半径方向内側に屈曲させられて内輪の対向外
周面に摺接しているものが知られている。ところ
が、従来の通電ブラシは、軸方向の移動や倒れを
防止するため、内外輪に形成されたみぞにはめ込
まれている。このため、密封型の通電軸受の場
合、内外輪にシールみぞの他の通電ブラシ用の特
殊なみぞを加工する必要があり、標準の密封型レ
ースを使用することができない。しかも、通電ブ
ラシ用のみぞはシールみぞの奥に形成されるた
め、通電ブラシの組込み作業性が悪いという問題
がある。 As such a current-carrying bearing, there is one in which both ends of a substantially C-shaped retaining ring-type current-carrying brush are fitted onto the inner circumferential surface of the outer ring and are bent radially inward to make sliding contact with the opposing outer circumferential surface of the inner ring. Are known. However, conventional current-carrying brushes are fitted into grooves formed in the inner and outer rings to prevent them from moving or falling in the axial direction. For this reason, in the case of a sealed current-carrying bearing, it is necessary to machine special grooves for the current-carrying brush in addition to the seal grooves on the inner and outer rings, and a standard sealed race cannot be used. Furthermore, since the groove for the energizing brush is formed deep within the seal groove, there is a problem in that the workability of assembling the energizing brush is poor.
この考案の目的は、上記の問題を解決し、標準
の密封型レースを使用でき、しかも通電ブラシの
組込み作業性の良い通電軸受を提供することにあ
る。 The purpose of this invention is to solve the above-mentioned problems and to provide a current-carrying bearing that allows the use of a standard sealed race and has good workability in assembling a current-carrying brush.
問題点を解決するための手段
この考案による通電軸受は、外輪の端部に設け
られた環状みぞに、この環状みぞの奥側の壁との
間に環状空間が形成されるように密封板がはめ止
められるとともに、円弧状部分を有する略Ｃ形の
止め輪型通電ブラシのこの円弧状部分が上記環状
空間内にはめ止められており、上記通電ブラシの
両端部が上記円弧状部分の半径方向内側に屈曲さ
せられて内輪に摺接しているものである。Means for Solving the Problems The current-carrying bearing according to this invention has a sealing plate in the annular groove provided at the end of the outer ring so that an annular space is formed between the annular groove and the inner wall of the annular groove. The arcuate portion of a substantially C-shaped retaining ring-type energizing brush having an arcuate portion is fitted in the annular space, and both ends of the energizing brush extend in the radial direction of the arcuate portion. It is bent inward and makes sliding contact with the inner ring.
作 用
略Ｃ形の止め輪型通電ブラシは円弧状部分にお
いて密封板とともに外輪の環状みぞ内に保持さ
れ、両端部において内輪に摺接しており、これに
より、電気が内輪および外輪の一方から他方に伝
えられる。そして、通電ブラシの円弧状部分は密
封板とともに１つの環状みぞ内に保持されるた
め、内外輪に通電ブラシ用の特殊なみぞを加工す
る必要がない。Function The approximately C-shaped retaining ring-type energizing brush is held in the annular groove of the outer ring along with the sealing plate at the circular arc portion, and is in sliding contact with the inner ring at both ends, thereby allowing electricity to flow from one of the inner and outer rings to the other. can be conveyed to. Since the arcuate portion of the energizing brush is held in one annular groove together with the sealing plate, there is no need to form special grooves for the energizing brush in the inner and outer rings.
密封板の奥側の側面に、環状みぞの奥側の壁に
接する複数の突起が形成されるのが望ましい。こ
のようにすれば、密封板の浮上り、脱落が確実に
防止され、しかも密封板と通電ブラシの干渉が防
止される。 Preferably, a plurality of protrusions are formed on the inner side surface of the sealing plate to contact the inner wall of the annular groove. In this way, the sealing plate is reliably prevented from floating or falling off, and furthermore, interference between the sealing plate and the current-carrying brush is prevented.
なお、この明細書において、密封板とは、シー
ルまたはシールドを指すものとする。また、外輪
の軸方向の両端側を入口側といい、中央側を奥側
という。 Note that in this specification, a sealing plate refers to a seal or a shield. Also, both ends of the outer ring in the axial direction are called the inlet side, and the center side is called the back side.
実施例
図面は、この考案を単列深みぞ玉軸受に適用し
た実施例を示す。Embodiment The drawings show an embodiment in which this invention is applied to a single-row deep groove ball bearing.
この軸受は、主として、内輪１０、外輪１１、
転動体１２および保持器１３より構成されてい
る。外輪１１の両端部に、通常のシールみぞと同
様の環状みぞ１４，１５が形成されている。 This bearing mainly includes an inner ring 10, an outer ring 11,
It is composed of rolling elements 12 and a cage 13. Annular grooves 14 and 15 similar to ordinary seal grooves are formed at both ends of the outer ring 11.
片側（第１図の右側）のみぞ１４に、円弧状部
分１６ｃを有する略Ｃ形の止め輪型通電ブラシ１
６とシールド１７が弾性力によりはめ止められて
いる。シールド１７は、通常のシールドの奥側の
側面に複数の台形状の突起１８が円周方向に等間
隔をおいて一体に形成されているものである。そ
して、これらの突起１８がみぞ１４の奥側の壁に
圧接するとともに、シールド１７の外周部がみぞ
１４の入口側の壁に圧接しており、これにより、
シールド１７がみぞ１４内に確実に保持されてい
る。また、シールド１７の突起１８より半径方向
外側の部分とみぞ１４の奥側の壁との間に、環状
空間１９が形成されている。ブラシ１６の形状は
従来のものと同じであり、外側の大部分を占める
円弧状部分１６ｃがシールド１７の突起１８の半
径方向外側を通つて、シールド１７とみぞ１４の
奥側の壁との間に挾まれて環状空間１９内にはめ
止められている。ブラシ１６は両端寄りの部分で
円弧状部分１６ｃの半径方向内側に屈曲させられ
ており、その両端部１６ａが内輪１０の外周面に
摺接している。そして、ブラシ１６の屈曲部１６
ｂは、シールド１７の複数の突起１８の間に通さ
れている。 A substantially C-shaped retaining ring type current-carrying brush 1 having an arcuate portion 16c in the groove 14 on one side (right side in FIG. 1).
6 and the shield 17 are fitted together by elastic force. The shield 17 has a plurality of trapezoidal protrusions 18 integrally formed at equal intervals in the circumferential direction on the back side surface of a normal shield. These protrusions 18 are in pressure contact with the wall on the back side of the groove 14, and the outer peripheral portion of the shield 17 is in pressure contact with the wall on the entrance side of the groove 14.
The shield 17 is securely held within the groove 14. Further, an annular space 19 is formed between a portion of the shield 17 that is radially outward from the protrusion 18 and the inner wall of the groove 14 . The shape of the brush 16 is the same as that of the conventional brush, and the arcuate portion 16c that occupies most of the outer side passes through the radially outer side of the protrusion 18 of the shield 17, and extends between the shield 17 and the inner wall of the groove 14. It is held in the annular space 19 by being sandwiched between the two. The brush 16 is bent inward in the radial direction of the arcuate portion 16c at portions near both ends, and both ends 16a are in sliding contact with the outer circumferential surface of the inner ring 10. Then, the bent portion 16 of the brush 16
b is passed between the plurality of protrusions 18 of the shield 17.
反対側（第１図の左側）のみぞ１５には、上記
と同じシールド１７だけが同様にはめ止められて
いる。なお、このみぞ１５には、突起１８のない
通常のシールドを取付けてもよい。 In the groove 15 on the opposite side (left side in FIG. 1), only the same shield 17 as described above is fitted in the same way. Note that a normal shield without the protrusion 18 may be attached to this groove 15.
上記の軸受において、電気は、通電ブラシ１６
により、内輪１０および外輪１１の一方から他方
に伝えられる。このとき、シールド１７の突起１
８と外周部がみぞ１４の壁に圧接して、シールド
１７がみぞ１４内に保持されているので、回転中
のシールド１７の浮上り、脱落が確実に防止され
る。そして、ブラシ１６がシールド１７とみぞ１
４の奥側の壁との間に挾まれてみぞ１４内に確実
に保持されているので、軸方向の移動や倒れが生
じることがなく、内輪１０にも通電ブラシ用のみ
ぞを設ける必要がない。また、ブラシ１６の屈曲
部１６ｂはシールド１７の複数の突起１８の間を
通すことができるので、シールド１７とブラシ１
６の干渉が防止される。また、突起１８が台形状
をなすので、ブラシ１６の屈曲部１６ｂが突起１
８の部分にきても、内輪１０とブラシ１６の摩擦
力により屈曲部１６ｂは突起１８のない部分に移
動して位置が安定する。 In the above bearing, electricity is supplied to the energizing brush 16
As a result, the power is transmitted from one of the inner ring 10 and the outer ring 11 to the other. At this time, the protrusion 1 of the shield 17
Since the shield 17 is held within the groove 14 by pressing the shield 17 against the wall of the groove 14, the shield 17 is reliably prevented from floating or falling off during rotation. Then, the brush 16 is connected to the shield 17 and the groove 1.
Since it is sandwiched between the inner ring 10 and the inner ring 4 and is securely held in the groove 14, it does not move or fall in the axial direction, and it is not necessary to provide a groove for the current-carrying brush in the inner ring 10 as well. do not have. Further, since the bent portion 16b of the brush 16 can pass between the plurality of protrusions 18 of the shield 17, the shield 17 and the brush 1
6 interference is prevented. Further, since the protrusion 18 has a trapezoidal shape, the bent portion 16b of the brush 16
Even at the position 8, the frictional force between the inner ring 10 and the brush 16 moves the bent part 16b to a part where there is no protrusion 18, and the position becomes stable.
シールド１７の構成とくに突起１８の形状、配
置などは、上記実施例のものに限らず、適宜変更
可能である。第３図および第４図は、シールドの
変形例を示す。このシールド２０の片面には、ロ
ーレツト加工により、多数の三角形状の突起２１
が形成されている。他は上記のシールド１７と同
様である。 The configuration of the shield 17, particularly the shape and arrangement of the protrusions 18, are not limited to those of the above embodiments, and can be modified as appropriate. 3 and 4 show modifications of the shield. One side of this shield 20 has many triangular protrusions 21 by knurling.
is formed. The rest is the same as the shield 17 described above.
上記実施例では密封板としてシールドを用いて
いるが、シールを用いてもよい。また、この考案
は、単列深みぞ玉軸受以外のラジアルころがり軸
受にももちろん適用できる。 In the above embodiment, a shield is used as the sealing plate, but a seal may also be used. Furthermore, this invention can of course be applied to radial rolling bearings other than single-row deep groove ball bearings.
考案の効果
この考案の通電軸受によれば、略Ｃ形の止め輪
型通電ブラシはその円弧状部分が密封板とともに
１つの環状みぞ内に保持されるので、内外輪に通
電ブラシ用の特殊なみぞを加工する必要がなく、
内外輪に標準の密封型レースを使用することがで
きる。しかも、通電ブラシの円弧状部分を外輪単
部のみぞにはめるだけでよいから、通電ブラシの
組込み作業性が良い。Effects of the invention According to the current-carrying bearing of this invention, since the approximately C-shaped retaining ring-type current-carrying brush has its arcuate portion held in one annular groove together with the sealing plate, special There is no need to process grooves,
Standard sealed races can be used for the inner and outer rings. Moreover, since it is only necessary to fit the arc-shaped portion of the energizing brush into the groove of a single portion of the outer ring, the workability of assembling the energizing brush is good.
第１図はこの考案の実施例を示す通電軸受の要
部拡大縦断面図、第２図は第１図の通電軸受の横
断面図、第３図はシールドの変形例を示す要部拡
大正面図、第４図は第３図−線の断面図であ
る。
１０……内輪、１１……外輪、１４……環状み
ぞ、１６……ブラシ、１６ａ……ブラシ端部、１
６ｂ……ブラシ屈曲部、１６ｃ……ブラシ円弧状
部分、１７，２０……シールド、１８，２１……
突起、１９……環状空間。
Fig. 1 is an enlarged vertical cross-sectional view of the main part of the current-carrying bearing showing an embodiment of this invention, Fig. 2 is a cross-sectional view of the current-carrying bearing shown in Fig. 1, and Fig. 3 is an enlarged front view of the main part showing a modification of the shield. FIG. 4 is a sectional view taken along the line shown in FIG. 3. 10... Inner ring, 11... Outer ring, 14... Annular groove, 16... Brush, 16a... Brush end, 1
6b... Brush bent portion, 16c... Brush arcuate portion, 17, 20... Shield, 18, 21...
Protrusion, 19... annular space.
Claims (1)
に、この環状みぞ１４の奥側の壁との間に環状
空間１９が形成されるように密封板１７，２０
がはめ止められるとともに、円弧状部分１６ｃ
を有する略Ｃ形の止め輪型通電ブラシ１６のこ
の円弧状部分１６ｃが上記環状空間１９内には
め止められており、上記通電ブラシ１６の両端
部１６ａが上記円弧状部分１６ｃの半径方向内
側に屈曲させられて内輪１０に摺接している通
電軸受。 (2) 上記密封板１７，２０の奥側の側面に、上記
環状みぞ１４の奥側の壁に接する複数の突起１
８，２１が形成されている実用新案登録請求の
範囲第１項に記載の通電軸受。[Claims for Utility Model Registration] (1) Annular groove 14 provided at the end of the outer ring 11
The sealing plates 17 and 20 are arranged so that an annular space 19 is formed between the annular groove 14 and the inner wall of the annular groove 14.
is fitted and fixed, and the arcuate portion 16c
This arcuate portion 16c of the approximately C-shaped retaining ring type energizing brush 16 is fitted into the annular space 19, and both ends 16a of the energizing brush 16 are radially inward of the arcuate portion 16c. A current-carrying bearing that is bent and is in sliding contact with the inner ring 10. (2) A plurality of protrusions 1 are provided on the inner side surfaces of the sealing plates 17 and 20 and are in contact with the inner wall of the annular groove 14.
8 and 21 are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986123798U JPH0429131Y2 (en) | 1986-08-11 | 1986-08-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986123798U JPH0429131Y2 (en) | 1986-08-11 | 1986-08-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6328921U JPS6328921U (en) | 1988-02-25 |
| JPH0429131Y2 true JPH0429131Y2 (en) | 1992-07-15 |
Family
ID=31015231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986123798U Expired JPH0429131Y2 (en) | 1986-08-11 | 1986-08-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0429131Y2 (en) |
-
1986
- 1986-08-11 JP JP1986123798U patent/JPH0429131Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6328921U (en) | 1988-02-25 |
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