JPH112236A - Slide bearing - Google Patents
Slide bearingInfo
- Publication number
- JPH112236A JPH112236A JP15622197A JP15622197A JPH112236A JP H112236 A JPH112236 A JP H112236A JP 15622197 A JP15622197 A JP 15622197A JP 15622197 A JP15622197 A JP 15622197A JP H112236 A JPH112236 A JP H112236A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- fixing
- taper
- shaft
- screwed
- 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.)
- Granted
Links
Landscapes
- Sliding-Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、高温環境下で使
用されるすべり軸受、特に線膨張係数の比較的大きい材
料のシャフト或いはハウジングと、線膨張係数の小さい
材料の内輪（リング）及び外輪とを組み合わせて形成さ
れるすべり軸受であって、内輪或いは外輪を固定するも
のに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plain bearing used in a high-temperature environment, particularly to a shaft or a housing made of a material having a relatively large coefficient of linear expansion, an inner ring (ring) and an outer ring made of a material having a small coefficient of linear expansion. And a bearing for fixing an inner ring or an outer ring.
【０００２】[0002]
【従来の技術】高温環境下で使用されるすべり軸受は、
図６に示すように、ハウジング２２に外輪２４を嵌め入
れ、また、シャフト２１には内輪２３を嵌め入れ、外輪
２４に内輪２３を嵌合させた構成としてある。これら外
輪２４と内輪２３との間の潤滑には二硫化モリブデン等
が使用される。そして前記ハウジング２２やシャフト２
１を鋼製とし、外輪２４や内輪２３にはセラミックスや
固体潤滑剤成形体で製作される。この場合、ハウジング
２２と外輪２４との嵌合或いはシャフト２１と内輪２３
との嵌合（固定）は、圧入か焼嵌めである。2. Description of the Related Art A plain bearing used in a high temperature environment is:
As shown in FIG. 6, an outer ring 24 is fitted into the housing 22, an inner ring 23 is fitted into the shaft 21, and the inner ring 23 is fitted into the outer ring 24. For lubrication between the outer ring 24 and the inner ring 23, molybdenum disulfide or the like is used. And the housing 22 and the shaft 2
1 is made of steel, and the outer ring 24 and the inner ring 23 are made of a ceramic or solid lubricant molded body. In this case, fitting of the housing 22 and the outer ring 24 or the shaft 21 and the inner ring 23
(Fixing) is press fitting or shrink fitting.
【０００３】また、鋼製のシャフトとセラミックス製の
内輪とを嵌合（固定）する方法としては、図７に示すよ
うに、鋼製の鍔３１ｂ付のシャフト３１にセラミックス
製の内輪３３を嵌合すると共に、該シャフト３１には雄
ねじ３１ａを形成し該内輪３３を固定する構成のものが
知られている（特開平２−２５３０１０号）。３４は外
輪であり、これら内輪３３と外輪３４との間にはころ３
５を保持した保持器３６が配置される。この場合、前記
シャフト３１の内輪３３を嵌合固定する表面には溝３１
ｃを設けて応力を緩和している。As a method of fitting (fixing) a steel shaft and a ceramic inner ring, as shown in FIG. 7, a ceramic inner ring 33 is fitted to a shaft 31 having a steel flange 31b. In addition, there is known a structure in which a male screw 31a is formed on the shaft 31 to fix the inner ring 33 (Japanese Patent Laid-Open No. 253010/1990). Reference numeral 34 denotes an outer ring, and rollers 3 are provided between the inner ring 33 and the outer ring 34.
5 is arranged. In this case, a groove 31 is provided on the surface of the shaft 31 on which the inner ring 33 is fitted and fixed.
The stress is alleviated by providing c.
【０００４】或いは、鋼製のシャフトとセラミックス製
の内輪とを嵌合（固定）する他の方法としては、図８に
示すように、鋼製のシャフト４１にセラミックス製の内
輪４３を緩く嵌合（すきま嵌め）すると共に、該シャフ
ト４１両側から別部材の固定用リング４２、４６を圧入
して該内輪４３を固定する構成のものが知られている
（特開平３−１４０６２５号）。４４は外輪であり、こ
れら内輪４３と外輪４４との間にはころ４５を保持した
保持器４８が配置される。Alternatively, as another method of fitting (fixing) a steel shaft and a ceramic inner ring, as shown in FIG. 8, a ceramic inner ring 43 is loosely fitted to a steel shaft 41. A configuration is known in which the inner ring 43 is fixed by press-fitting separate fixing rings 42 and 46 from both sides of the shaft 41 (gap fitting) (Japanese Patent Application Laid-Open No. 3-140625). Reference numeral 44 denotes an outer ring, and a retainer 48 holding a roller 45 is disposed between the inner ring 43 and the outer ring 44.
【０００５】[0005]
【発明が解決しようとする課題】図６に示すように、ハ
ウジング２２に外輪２４を圧入し、シャフト２１に内輪
２３を圧入し、外輪２４と内輪２３とをすべり軸受とす
るタイプのものは、温度変化により締代が変化してこれ
ら外輪２４や内輪２３等が割れる恐れがある。また、す
きま嵌めでは外輪２４の鍔２４ａや内輪２３の鍔２３ａ
で軸方向の移動を固定している以外位置決めができな
い。また、図７に示すタイプのものでは、内輪３３の嵌
合固定は圧入か焼嵌めになるため、メインテナンスで内
輪３３を交換する際にシャフト３１からの内輪３３の抜
き差しが困難である。更に、図８に示すタイプのもの
は、温度変化が大きい場合、線膨張係数の大きいシャフ
ト４１が伸びてリング４２、４６が緩む可能性があり内
輪４３の固定状態が不安定となる。As shown in FIG. 6, an outer ring 24 is press-fitted into a housing 22, an inner ring 23 is press-fitted into a shaft 21, and the outer ring 24 and the inner ring 23 are used as sliding bearings. The outer ring 24, the inner ring 23, and the like may be broken due to a change in interference due to a temperature change. In the case of clearance fit, the flange 24a of the outer ring 24 and the flange 23a of the inner ring 23 are provided.
Positioning cannot be performed unless the axial movement is fixed with. In the type shown in FIG. 7, the fitting and fixing of the inner ring 33 is performed by press-fitting or shrink-fitting, so that it is difficult to remove and insert the inner ring 33 from the shaft 31 when replacing the inner ring 33 for maintenance. Further, in the case of the type shown in FIG. 8, when the temperature change is large, the shaft 41 having a large linear expansion coefficient may expand and the rings 42 and 46 may be loosened, so that the fixed state of the inner ring 43 becomes unstable.
【０００６】この発明は上記する課題に対処するために
なされたものであり、圧入や焼嵌めのような嵌合作業を
必要とせず嵌合が容易であり、高温環境下で使用しても
割れが生ぜず、且つ高温状態の熱膨張で嵌め合いすき間
が負になっても応力を緩和することのできるすべり軸受
を提供することを目的としている。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and does not require a fitting operation such as press-fitting or shrink-fitting. It is an object of the present invention to provide a sliding bearing which does not cause the stress and can reduce the stress even if the fitted gap becomes negative due to thermal expansion in a high temperature state.
【０００７】[0007]
【課題を解決するための手段】即ち、この発明は、上記
する課題を解決するために、すべり軸受が、ハウジン
グ（２）に設けた雌ねじ（２ａ）に、外周面に雄ねじ
（６ａ）を設けた固定リング（６）を螺合させ、雌ねじ
穴に外輪（４）を嵌め入れ、更に、該外輪（４）を入れ
た後外周面に雄ねじ（８ａ）を設けた固定リング（８）
を螺合させ、これら固定リング（６，８）で両側を固定
した前記外輪（４）に、シャフト（１）に設けた雄ねじ
（１ａ）に、内周面に雌ねじ（５ａ）を設けた固定リン
グ（５）を螺合させた後、該シャフト（１）を内輪
（３）に嵌め入れ、更に、該内輪（３）を嵌め入れた後
内周面に雌ねじ（７ａ）を設けた固定リング（７）を螺
合させ、これらの固定リング（５，７）で両側を固定さ
れた前記内輪（３）を嵌め入れて成ることを特徴とす
る。According to the present invention, in order to solve the above-mentioned problems, a plain bearing is provided with a female screw (2a) provided on a housing (2) and a male screw (6a) on an outer peripheral surface. The fixing ring (8) is screwed into the fixing ring (6), the outer ring (4) is fitted into the female screw hole, and further, the outer ring (4) is inserted, and then the outer ring (8a) is provided with a male screw (8a) on the outer peripheral surface.
The outer ring (4) fixed on both sides by the fixing rings (6, 8), the male screw (1a) provided on the shaft (1), and the female screw (5a) provided on the inner peripheral surface. After screwing the ring (5), the shaft (1) is fitted into the inner ring (3), and further, after the inner ring (3) is fitted, a female ring (7a) is provided on the inner peripheral surface. (7) is screwed, and the inner ring (3) fixed on both sides by these fixing rings (5, 7) is fitted therein.
【０００８】また、前記のすべり軸受において、ハ
ウジング（２）に螺合させる一方の固定リング（６）に
は、側面に軸方向に対して傾斜するテ−パ（６ｃ）を設
けた突起部（６ｂ）を形成し、ハウジング（２）に螺合
させる他方の固定リング（８）には、前記固定リング
（６）に設けた突起部（６ｂ）に対向する側の側面にテ
−パ（８ｃ）を設けた突起部（８ｂ）を形成し、外輪
（４）の内周面両端部には、前記二つの突起部（６ｂ，
８ｂ）に設けたテ−パ（６ｃ，８ｃ）と接合するテ−パ
面（４ｂ，４ｃ）を設け、前記二つの固定リング（６，
８）のテ−パ面（６ｃ，８ｃ）面とをそれぞれ接合して
該外輪（４）を固定して成ることを特徴とする。In the above-mentioned plain bearing, one of the fixing rings (6) screwed to the housing (2) is provided with a projection (6c) provided on a side surface thereof with a taper (6c) inclined with respect to the axial direction. 6b) is formed and the other fixing ring (8) screwed to the housing (2) is provided with a taper (8c) on the side surface facing the projection (6b) provided on the fixing ring (6). ) Are formed, and the two protrusions (6b, 6b, 8b) are formed at both ends of the inner peripheral surface of the outer ring (4).
8b) is provided with a taper surface (4b, 4c) to be joined to the taper (6c, 8c) provided, and the two fixing rings (6, 8c) are provided.
The outer ring (4) is fixed by joining the taper surfaces (6c, 8c) of (8).
【０００９】或いは、前記又はのすべり軸受にお
いて、シャフト（１）に設けた雄ねじ（１ａ）に螺合さ
せる一方の固定リング（５）には、側面に軸方向に対し
て傾斜するテ−パ（５ｃ）を設けた突起部（５ｂ）を形
成し、シャフト（１）に設けた雄ねじ（１ａ）に螺合さ
せる他方の固定リング（７）には、前記固定リング
（５）に設けた突起部（５ｂ）に対向する側の側面にテ
−パ（７ｃ）を設けた突起部（７ｂ）を形成し、内輪
（３）の外周面両端部には、前記二つの突起部（５ｂ，
７ｂ）に設けたテ−パ（５ｃ，７ｃ）と接合するテ−パ
面（３ｂ，３ｃ）を設け、前記二つの固定リング（５，
７）のテ−パ面（５ｃ，７ｃ）と内輪（３）のテ−パ面
（３ｂ，３ｃ）とをそれぞれ接合して該内輪（３）を固
定して成ることを特徴とする。Alternatively, in the above-mentioned plain bearing, one of the fixing rings (5) screwed to the male screw (1a) provided on the shaft (1) has a taper ( A projection (5b) provided with 5c) is formed, and the other fixing ring (7) screwed to a male screw (1a) provided on the shaft (1) is provided with a projection provided on the fixing ring (5). A protrusion (7b) provided with a taper (7c) is formed on the side surface facing the side (5b), and the two protrusions (5b, 5b,
7b) is provided with a taper surface (3b, 3c) to be joined to the taper (5c, 7c) provided in the two fixing rings (5, 7c).
The tapered surface (5c, 7c) of (7) and the tapered surface (3b, 3c) of the inner ring (3) are respectively joined to fix the inner ring (3).
【００１０】或いは、前記のすべり軸受において、
ハウジング（２）に螺合させる一方の固定リング（６）
には、側面に軸方向に対して傾斜するテ−パ（６ｃ）を
設けた突起部（６ｂ）と内径方向に延設した鍔部（６
ｄ）とを形成し、ハウジング（２）に螺合させる他方の
固定リング（８）には、前記固定リング（６）に設けた
突起部（６ｂ）に対向する側の側面にテ−パ（８ｃ）を
設けた突起部（８ｂ）と内径方向に延設した鍔部（８
ｄ）とを形成し、外輪（４）の内周面両端部には、前記
二つの突起部（６ｂ，８ｂ）に設けたテ−パ（６ｃ，８
ｃ）と接合するテ−パ面（４ｂ、４ｃ）を設けて該外輪
（４）を固定すると共に、シャフト（１）に設けた雄ね
じ（１ａ）に螺合させる一方の固定リング（５）には、
側面に軸方向に対して傾斜するテ−パ（５ｃ）を設けた
突起部（５ｂ）と外径方向に延設した鍔部（５ｄ）とを
形成し、該シャフト（１）に設けた雄ねじ（１ａ）に螺
合させる他方の固定リング（７）には、前記固定リング
（５）に設けた突起部（５ｂ）に対向する側の側面にテ
−パ（７ｃ）を設けた突起部（７ｂ）と外径方向に延設
した鍔部（７ｄ）とを形成し、内輪（３）の内周面両端
部には、前記二つの突起部（５ｂ，７ｂ）に設けたテ−
パ（５ｃ，７ｃ）と接合するテ−パ面（３ｂ，３ｃ）を
設けて該内輪（３）を固定して成ることを特徴とする。Alternatively, in the above-mentioned plain bearing,
One fixing ring (6) screwed into the housing (2)
A protrusion (6b) provided with a taper (6c) inclined on the side surface with respect to the axial direction, and a flange (6) extended in the inner diameter direction.
d), and the other fixing ring (8) screwed to the housing (2) has a taper () on its side facing the projection (6b) provided on the fixing ring (6). 8c) and a flange (8) extending in the inner diameter direction.
d), and tapers (6c, 8) provided on the two projections (6b, 8b) are provided at both ends of the inner peripheral surface of the outer ring (4).
c) to provide a tapered surface (4b, 4c) for fixing the outer ring (4), and to one fixing ring (5) screwed to a male screw (1a) provided on the shaft (1). Is
An external thread provided on the shaft (1) is formed with a projection (5b) provided on the side surface with a taper (5c) inclined with respect to the axial direction and a flange (5d) extended in the outer diameter direction. The other fixing ring (7) to be screwed into (1a) has a projection (7c) provided on the side surface opposite to the projection (5b) provided on the fixing ring (5). 7b) and a flange portion (7d) extending in the outer diameter direction, and at both ends of the inner peripheral surface of the inner ring (3), tapes provided on the two projections (5b, 7b).
The inner ring (3) is fixed by providing tapered surfaces (3b, 3c) to be joined to the pavers (5c, 7c).
【００１１】[0011]
【発明の実施の形態】以下、この発明の具体的実施の形
態について図面を参照して説明する。図１は、この発明
のすべり軸受をハウジング及びシャフトに取り付け、嵌
合させた状態の断面図である。このすべり軸受は、ハウ
ジング２と、該ハウジング２側に嵌め入れる外輪４と、
該外輪４の両側に嵌め入れる固定用リング６，８と、シ
ャフト１と、該シャフト１を嵌め入れる内輪３と、該内
輪３の両側に嵌め入れる固定用リング５，７と、で構成
される。前記ハウジング２及びシャフト１は例えば鋼材
で製作され、外輪４や内輪３はこれらハウジング２及び
シャフト１よりも線膨張係数の小さい例えばセラミック
スで製作する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing a state in which the sliding bearing of the present invention is attached to a housing and a shaft and fitted. The sliding bearing includes a housing 2, an outer ring 4 fitted into the housing 2,
It is composed of fixing rings 6 and 8 fitted on both sides of the outer ring 4, a shaft 1, an inner ring 3 fitted with the shaft 1, and fixing rings 5 and 7 fitted on both sides of the inner ring 3. . The housing 2 and the shaft 1 are made of, for example, a steel material, and the outer ring 4 and the inner ring 3 are made of, for example, ceramics having a smaller linear expansion coefficient than those of the housing 2 and the shaft 1.
【００１２】前記外輪４を嵌め入れるハウジング２の内
周面には、雌ねじ２ａが設けられ、該外輪４を固定する
固定用リング６，８の外周面には、それぞれ雄ねじ６
ａ，８ａが設けられている。また、前記内輪３に嵌め入
れるシャフト１の外周面には、雄ねじ１ａが設けられ、
該内輪３を固定する固定用リング５，７の内周面には、
それぞれ雌ねじ５ａ，７ａが設けられている。A female screw 2a is provided on the inner peripheral surface of the housing 2 in which the outer ring 4 is fitted, and male screws 6a are provided on the outer peripheral surfaces of fixing rings 6 and 8 for fixing the outer ring 4, respectively.
a, 8a are provided. A male screw 1a is provided on an outer peripheral surface of the shaft 1 to be fitted into the inner ring 3,
On the inner peripheral surfaces of the fixing rings 5 and 7 for fixing the inner ring 3,
Female screws 5a and 7a are provided respectively.
【００１３】図２は、前記ハウジング２に外輪４を嵌め
入れ固定用リング６，８で該外輪４を固定する方法を示
す図である。先ず、ハウジング２には、一方の固定用リ
ング６を螺合させて適当な位置に置く。該固定リング６
の側面には、軸方向に突起部６ｂが形成され、該突起部
６ｂには軸方向に対して所定角度傾斜するテ−パ６ｃが
形成してある（図２（Ａ））。次に、外輪４をハウジン
グ２内に嵌め入れるが、この場合、ハウジング２と外輪
４とはハウジング２の雌ねじ２ａの内径（山径）が外輪
４の外径より大きいか、同一径とした通常の『すき間嵌
め』である（図２（Ｂ））。前記外輪４の内周側の一方
の端部には、前記固定リング６の突起部６ｂに設けたテ
−パ６ｃと同一の角度のテ−パ４ｂ（面取り）が形成さ
れ、該外輪４の内周側の他方の端部にも軸方向に対して
所定角度のテ−パ４ｃ（面取り）が形成されている。そ
して、前記固定リング６の突起部６ｂに設けたテ−パ６
ｃと外輪４のテ−パ４ｂとを接合させる。次に、該外輪
４を嵌め入れた後、もう一方の固定リング８をハウジン
グ２の雌ねじ４ａに螺合させて嵌め入れる。該固定リン
グ８にも、前記固定リング６の突起部６ｂと対向する側
面に突起部８ｂが形成されると共に、該突起部８ｂには
軸方向に所定角度、即ち、前記外輪４のもう一方のテ−
パ４ｃの角度と同一角度のテ−パ８ｃが形成されてい
る。そして該固定リング８の突起部８ｂのテ−パ８ｃと
外輪４のテ−パ４ｃとを接合させ、該固定リング８を外
輪４に押しつけて固定する（図２（Ｃ））。FIG. 2 is a view showing a method of fitting the outer race 4 into the housing 2 and fixing the outer race 4 with the fixing rings 6 and 8. First, one fixing ring 6 is screwed into the housing 2 and placed at an appropriate position. The fixing ring 6
Is formed on the side surface thereof with a projection 6b in the axial direction, and a taper 6c inclined at a predetermined angle with respect to the axial direction is formed on the projection 6b (FIG. 2A). Next, the outer race 4 is fitted into the housing 2. In this case, the housing 2 and the outer race 4 usually have an inner diameter (peak diameter) of the female screw 2 a of the housing 2 larger than or equal to the outer diameter of the outer race 4. (FIG. 2 (B)). At one end on the inner peripheral side of the outer ring 4, a taper 4 b (chamfer) having the same angle as the taper 6 c provided on the projection 6 b of the fixing ring 6 is formed. A taper 4c (chamfer) having a predetermined angle with respect to the axial direction is also formed at the other end on the inner peripheral side. A taper 6 provided on the protrusion 6b of the fixing ring 6
c and the taper 4b of the outer ring 4 are joined. Next, after fitting the outer ring 4, the other fixing ring 8 is screwed into the female screw 4 a of the housing 2 and fitted. The fixing ring 8 also has a projection 8b formed on a side surface of the fixing ring 6 opposite to the projection 6b, and the projection 8b has a predetermined angle in the axial direction, that is, the other side of the outer ring 4. Te
A taper 8c having the same angle as that of the taper 4c is formed. Then, the taper 8c of the projection 8b of the fixing ring 8 and the taper 4c of the outer ring 4 are joined, and the fixing ring 8 is pressed against the outer ring 4 to be fixed (FIG. 2C).
【００１４】図３は、前記シャフト１に内輪３を嵌め入
れ固定用リング５，７で該内輪３を固定する方法を示す
図である。先ず、シャフト１には、一方の固定用リング
５を螺合させて適当な位置に置く。該固定リング５の側
面には、軸方向に突起部５ｂが形成され、該突起部５ｂ
には軸方向に対して所定角度傾斜するテ−パ５ｃが形成
してある（図３（Ａ））。次に、内輪３にシャフト１を
嵌め入れるが、この場合、シャフト１と内輪３とは、内
輪３の内径がシャフト１の雄ねじ１ａの外径（山径）よ
り大きいか、または同一径とした通常の『すき間嵌め』
である（図３（Ｂ））。前記内輪３の外周側の一方の端
部には、前記固定リング５の突起部５ｂに設けたテ−パ
５ｃの角度と同一の角度のテ−パ３ｂが形成され、該内
輪３の外周側の他方の端部にも軸方向に対して所定角度
のテ−パ３ｃが形成されている。そして、前記固定リン
グ５のテ−パ５ｃと内輪３のテ−パ３ｂとを接合させ
る。次に、シャフト１に内輪３を嵌め入れた後、もう一
方の固定リング７をシャフト１の雄ねじ１ａに螺合させ
て嵌め入れる。該固定リング７にも、軸方向に前記固定
リング５の突起部５ｂとは対向する側面に突起部７ｂが
形成されると共に、該突起部７ｂには軸方向に所定角
度、即ち、前記内輪３のもう一方のテ−パ３ｃと同一角
度のテ−パ７ｃが形成されている。そして該固定リング
７の突起部７ｂのテ−パ７ｃと内輪３のテ−パ３ｃとを
接合し、該固定リング７を内輪３に押しつけて固定する
（図３（Ｃ））。FIG. 3 is a view showing a method of fitting the inner race 3 to the shaft 1 and fixing the inner race 3 with the fixing rings 5 and 7. First, one fixing ring 5 is screwed onto the shaft 1 and is placed at an appropriate position. A protrusion 5b is formed on the side surface of the fixing ring 5 in the axial direction.
Is formed with a taper 5c inclined at a predetermined angle with respect to the axial direction (FIG. 3A). Next, the shaft 1 is fitted into the inner ring 3. In this case, the inner diameter of the inner ring 3 is larger than or equal to the outer diameter (peak diameter) of the male screw 1 a of the shaft 1. Normal "gap fit"
(FIG. 3B). At one end on the outer peripheral side of the inner ring 3, a taper 3 b having the same angle as the taper 5 c provided on the projection 5 b of the fixing ring 5 is formed. A taper 3c having a predetermined angle with respect to the axial direction is also formed at the other end of the taper 3c. Then, the taper 5c of the fixing ring 5 and the taper 3b of the inner ring 3 are joined. Next, after the inner ring 3 is fitted into the shaft 1, the other fixing ring 7 is screwed into the male screw 1 a of the shaft 1 and fitted. The fixing ring 7 also has a protrusion 7b formed on a side surface facing the protrusion 5b of the fixing ring 5 in the axial direction, and the protrusion 7b has a predetermined angle in the axial direction, that is, the inner ring 3. A tape 7c having the same angle as that of the other tape 3c is formed. Then, the taper 7c of the projection 7b of the fixing ring 7 and the taper 3c of the inner ring 3 are joined, and the fixing ring 7 is pressed against the inner ring 3 to be fixed (FIG. 3C).
【００１５】上記するように、この発明のすべり軸受の
外輪４側は、ハウジング２に雌ねじ２ａを設け、外輪４
を嵌め入れ、該外輪４の両側から外周面に雄ねじ６ａを
設けた固定リング６と、外周面に雄ねじ８ａを設けた固
定リング８とで固定するものであり、内輪３側は、シャ
フト１に雄ねじ１ａを設け、内輪３にシャフト１を嵌め
入れ、該内輪３の両側から内周面に雌ねじ５ａを設けた
固定リング５と、内周面に雌ねじ７ａを設けた固定リン
グ７とで固定するものである。そして、該ハウジング２
の材質と固定リング６，８の材質、及びシャフト１と固
定リング５，７とは線膨張係数がほぼ同等のものを用い
る。As described above, on the outer ring 4 side of the sliding bearing of the present invention, the housing 2 is provided with a female screw 2a, and the outer ring 4
And fixed with a fixing ring 6 provided with a male screw 6a on the outer peripheral surface from both sides of the outer ring 4 and a fixing ring 8 provided with a male screw 8a on the outer peripheral surface, and the inner ring 3 side is attached to the shaft 1. A male screw 1a is provided, the shaft 1 is fitted into the inner ring 3, and the inner ring 3 is fixed with a fixing ring 5 provided with a female screw 5a on the inner peripheral surface from both sides and a fixing ring 7 provided with a female screw 7a on the inner peripheral surface. Things. And the housing 2
And the shafts 1 and the fixing rings 5 and 7 have substantially the same linear expansion coefficient.
【００１６】また、前記外輪４を固定する固定リング
６，８の内径方向に鍔部６ｄ，８ｄがそれぞれ延設さ
れ、内輪３を固定する固定リング５，７の外径側には鍔
部５ｄ，７ｄがそれぞれ延設されているが、前記外輪４
や内輪３を固定するに際しては固定リング６，８或いは
固定リング５，７にはこれらの鍔部６ｄ，・・等は必須
のものではない。しかし、これらの鍔部６ｄ，・・等
は、後述するように、潤滑剤溜まり用の空間１５，１６
を形成するための溝部１２，１１，１４，１３を形成す
るためには必要となる。Flanges 6d and 8d extend in the inner diameter direction of the fixing rings 6 and 8 for fixing the outer ring 4, respectively. Flanges 5d are provided on the outer diameter side of the fixing rings 5 and 7 for fixing the inner ring 3. , 7d extend from the outer ring 4
When fixing the inner ring 3 and the fixing rings 6, 8 or the fixing rings 5, 7, these flanges 6d,. However, these flange portions 6d,...
It is necessary to form the grooves 12, 11, 14, and 13 for forming.
【００１７】図４は、ハウジング２に固定した外輪４
に、シャフト１に固定した内輪３を嵌め入れる場合の断
面図である。即ち、前記ハウジング２に両側から固定リ
ング６、８により外輪４を固定し、シャフト１に両側か
ら固定リング５、７により内輪３を固定した状態で、該
シャフト１をハウジング２に嵌め入れると、図１に示す
ように、外輪４に内輪３を嵌合したすべり軸受が形成さ
れる。また、外輪４を固定する一方の固定リング６には
突起部６ｂと鍔部６ｄが形成され、内輪３を固定する固
定リング５には突起部５ｂと鍔部５ｄが形成されるが、
外輪４と内輪３との嵌合状態において、突起部６ｂと鍔
部６ｄと外輪４のテ−パ４ｂとの間、及び突起部５ｂと
鍔部５ｄと内輪３のテ−パ３ｂとの間には、それぞれ溝
１２、１１が形成され、これら溝１２と溝１１との間に
は空間１５が形成される。同様に、他方の固定リング
８、７と外輪４のテ−パ４ｃ及び内輪３のテ−パ３ｃと
の間も溝１４、１３及び空間１６が形成される。そして
これらの空間１５、１６は『潤滑剤溜まり』或いは『磨
耗粉溜め』となる。FIG. 4 shows the outer race 4 fixed to the housing 2.
FIG. 2 is a cross-sectional view when the inner ring 3 fixed to the shaft 1 is fitted into the shaft 1. That is, when the outer ring 4 is fixed to the housing 2 from both sides by the fixing rings 6 and 8 and the inner ring 3 is fixed to the shaft 1 by the fixing rings 5 and 7 from both sides, the shaft 1 is fitted into the housing 2. As shown in FIG. 1, a slide bearing in which the inner race 3 is fitted to the outer race 4 is formed. Also, a projection 6b and a flange 6d are formed on one fixing ring 6 for fixing the outer ring 4, and a projection 5b and a flange 5d are formed on the fixing ring 5 for fixing the inner ring 3,
When the outer ring 4 and the inner ring 3 are fitted to each other, between the protrusion 6b and the flange 6d and the taper 4b of the outer ring 4, and between the protrusion 5b and the flange 5d and the taper 3b of the inner ring 3. Are formed with grooves 12 and 11, respectively, and a space 15 is formed between the grooves 12 and 11. Similarly, grooves 14, 13 and a space 16 are formed between the other fixing rings 8, 7 and the taper 4 c of the outer ring 4 and the taper 3 c of the inner ring 3. These spaces 15 and 16 serve as “lubricant reservoirs” or “wear powder reservoirs”.
【００１８】図５（Ａ）はこの発明のすべり軸受の外輪
側の断面図であり、図５（Ｂ）はその一部拡大図であ
る。上記構成からなるこの発明のすべり軸受は、固定リ
ング６，８の突起部６ｂ，８ｂが外輪４のテ−パ４ｂ，
４ｃに押しつけるとき、それぞれ若干弾性変形してこれ
ら外輪４を押さえつけることで固定される。即ち、高温
時にハウジング２が熱膨張した場合、外輪４には内径方
向へ力がかかるが、前記固定リング６，８の突起部６
ｂ，８ｂは径方向に弾性変形し、外輪４を押さえ固定す
る。このような固定リング６等の作用によりすべり軸受
の温度変化による緩みを防止することができる。前記シ
ャフト１が熱膨張した場合の内輪３を固定する固定リン
グ５，７についても同様である。また、外輪４や内輪３
或いはリング６，８、５，７等の交換に際しては、これ
ら固定リング６，８、５，７等とハウジング２やシャフ
ト１とがねじ結合であるため極めて簡単に交換すること
ができる。FIG. 5A is a sectional view of the sliding bearing of the present invention on the outer ring side, and FIG. 5B is a partially enlarged view thereof. In the sliding bearing of the present invention having the above configuration, the protrusions 6b, 8b of the fixing rings 6, 8 are formed by the taper 4b,
When pressed against the outer ring 4c, the outer ring 4 is fixed by being slightly elastically deformed. That is, when the housing 2 thermally expands at a high temperature, a force is applied to the outer ring 4 in the inner diameter direction.
b and 8b are elastically deformed in the radial direction and press and fix the outer race 4. By the action of the fixing ring 6 and the like, it is possible to prevent the slide bearing from loosening due to a temperature change. The same applies to the fixing rings 5 and 7 for fixing the inner ring 3 when the shaft 1 thermally expands. In addition, outer ring 4 and inner ring 3
Alternatively, when replacing the rings 6, 8, 5, 7, etc., the fixing rings 6, 8, 5, 7, etc., and the housing 2 and the shaft 1 are screw-connected, so that they can be replaced very easily.
【００１９】尚、上記実施例においては、ハウジング２
側に嵌め入れる外輪４にのみテ−パ面４ｂ，４ｃを形成
すると共に、固定リング６，８にテ−パ６ｃ，８ｃを設
けた突起部６ｂ，８ｂを形成し、シャフト１側の内輪３
にはテ−パ面３ｂ，３ｃを設けず、また、該内輪３を固
定する固定リング５，７にもテ−パ５ｃ，７ｃや突起部
５ｂ，７ｂを設けないすべり軸受としてもよいし、逆
に、シャフト１側に嵌め入れる内輪３にのみテ−パ面３
ｂ，３ｃを形成すると共に、固定リング５，７にテ−パ
５ｃ，７ｃを設けた突起部５ｂ，７ｂを形成し、ハウジ
ング２にはテ−パ面４ｂ，４ｃを設けず、更に、固定リ
ング６，８にもテ−パ６ｃ，８ｃや突起部６ｂ，８ｂを
設けないすべり軸受としてもよい。また、実施の形態で
は、固定リング６，８の突起部６ｂ，８ｂは連続した円
形としているが、円形状で不連続であってもよい。In the above embodiment, the housing 2
The tapered surfaces 4b and 4c are formed only on the outer ring 4 fitted on the side, and the protrusions 6b and 8b provided with the tapers 6c and 8c are formed on the fixing rings 6 and 8, and the inner ring 3 on the shaft 1 side is formed.
May not be provided with tapered surfaces 3b, 3c, and may be a slide bearing in which the fixed rings 5, 7 for fixing the inner ring 3 are not provided with the tapered portions 5c, 7c or the projections 5b, 7b. Conversely, only the inner ring 3 fitted on the shaft 1 side has a tapered surface 3.
b, 3c, and protrusions 5b, 7b provided with tapers 5c, 7c on the fixing rings 5, 7, and the housing 2 is not provided with the taper surfaces 4b, 4c. The rings 6 and 8 may be slide bearings without the tapers 6c and 8c and the protrusions 6b and 8b. Further, in the embodiment, the projections 6b, 8b of the fixing rings 6, 8 have a continuous circular shape, but may have a circular shape and are discontinuous.
【００２０】[0020]
【発明の効果】以上詳述したように、この発明のすべり
軸受によれば、ハウジング及びシャフトと、外輪及び内
輪と、これら外輪や内輪を固定する固定リング等、はそ
れぞれ別の、即ち、線膨張係数の異なる部材であるた
め、圧入による固定とは異なり、割れが殆ど発生しなく
なる。また、このすべり軸受は『すきま嵌め』でよく、
且つ外輪や内輪を固定する固定リングは『ねじ止め』に
よりハウジングやシャフトに嵌め込むため、取付けや取
外しが容易となる。更に、高温時の熱膨張差により嵌め
合いのすき間が負になっても、固定リングの弾性変形に
より対処することができる。また、ハウジングやシャフ
トと固定リングとの嵌め合い面にはねじが加工されてい
るため膨張時の応力を緩和することができる。As described above in detail, according to the plain bearing of the present invention, the housing and the shaft, the outer ring and the inner ring, and the fixing ring for fixing the outer ring and the inner ring, etc., are respectively different, that is, wires. Since the members have different expansion coefficients, unlike the fixing by press fitting, cracks hardly occur. In addition, this slide bearing may be "gap fit",
In addition, since the fixing ring for fixing the outer ring and the inner ring is fitted into the housing or the shaft by "screw fixing", attachment and detachment are facilitated. Further, even if the fitting gap becomes negative due to the difference in thermal expansion at a high temperature, it can be dealt with by the elastic deformation of the fixing ring. Further, since a screw is formed on a fitting surface between the housing or the shaft and the fixing ring, the stress at the time of expansion can be reduced.
【図１】この発明のすべり軸受をハウジング及びシャフ
トに取り付け、嵌合させた状態の断面図である。FIG. 1 is a cross-sectional view of a state in which a sliding bearing according to the present invention is attached to a housing and a shaft and fitted together.
【図２】ハウジングに外輪を嵌め入れ固定用リングで該
外輪を固定する方法を示す図であって、図２（Ａ）はハ
ウジングに一方の固定リングを螺合させた状態、図２
（Ｂ）は、一方の固定リングに外輪を接合させた状態、
図２（Ｃ）はハウジングに外輪を嵌め入れて両側から固
定リングで固定した状態を示す図である。FIG. 2 is a view showing a method of fitting an outer ring into a housing and fixing the outer ring with a fixing ring, and FIG. 2 (A) shows a state in which one fixing ring is screwed into the housing;
(B) is a state in which the outer ring is joined to one of the fixing rings,
FIG. 2C is a diagram showing a state in which the outer ring is fitted into the housing and fixed from both sides with fixing rings.
【図３】シャフトを内輪に嵌め入れ固定用リングで内輪
を固定する方法を示す図であって、図３（Ａ）はシャフ
トに一方の固定リングを螺合させた状態、図３（Ｂ）
は、一方の固定リングに内輪を接合させた状態、図３
（Ｃ）はシャフトに内輪を嵌め入れて両側から固定リン
グで固定した状態を示す図である。3A and 3B are diagrams showing a method of fitting a shaft to an inner ring and fixing the inner ring with a fixing ring, wherein FIG. 3A shows a state in which one fixing ring is screwed to the shaft, and FIG.
Fig. 3 shows a state in which the inner ring is joined to one of the fixing rings,
(C) is a figure which shows the state which fitted the inner ring in the shaft, and was fixed with the fixing ring from both sides.
【図４】ハウジングに固定した外輪に、シャフトに固定
した内輪を嵌め入れる状態の断面図である。FIG. 4 is a cross-sectional view showing a state where an inner ring fixed to a shaft is fitted into an outer ring fixed to a housing.
【図５】図５（Ａ）はこの発明のすべり軸受の外輪側の
断面図であり、図５（Ｂ）はその一部拡大図である。5 (A) is a sectional view of the sliding bearing of the present invention on the outer ring side, and FIG. 5 (B) is a partially enlarged view thereof.
【図６】図６（Ａ）は、従来のすべり軸受の軸方向に対
して直角な面の断面図であり、図６（Ｂ）は、軸方向の
断面図である。図６（Ａ）は、図６（Ｂ）のＡ−Ａ矢視
断面図である。FIG. 6A is a cross-sectional view of a conventional slide bearing taken along a plane perpendicular to the axial direction, and FIG. 6B is an axial cross-sectional view. FIG. 6A is a sectional view taken along the line AA of FIG. 6B.
【図７】従来のころ軸受の一部断面図である。FIG. 7 is a partial sectional view of a conventional roller bearing.
【図８】従来のすべり軸受の一部断面図である。FIG. 8 is a partial sectional view of a conventional plain bearing.
１ シャフト １ａ 雄ねじ ２ ハウジング ２ａ 雌ねじ ３ 内輪 ３ｂ，３ｃ テ−パ面 ４ 外輪 ４ｂ，４ｃ テ−パ面 ５，７ 固定リング ５ｂ，７ｂ 突起部 ５ｃ，７ｃ テ−パ ５ｄ，７ｄ 鍔部 ６，８ 固定リング ６ｂ，８ｂ 突起部 ６ｃ，８ｃ テ−パ ６ｄ，８ｄ 鍔部 １１，１２ 溝 １３，１４ 溝 １５，１６ 空間 Reference Signs List 1 shaft 1a male screw 2 housing 2a female screw 3 inner ring 3b, 3c taper surface 4 outer ring 4b, 4c taper surface 5, 7 fixing ring 5b, 7b protrusion 5c, 7c taper 5d, 7d flange 6,8 Fixing ring 6b, 8b Projection 6c, 8c Taper 6d, 8d Flange 11, 12 Groove 13, 14 Groove 15, 16 Space
Claims (4)
雄ねじを設けた固定リングを螺合させ、雌ねじ穴に外輪
を嵌め入れ、更に、該外輪を入れた後外周面に雄ねじを
設けた固定リングを螺合させ、これら固定リングで両側
を固定した前記外輪に、 シャフトに設けた雄ねじに、内周面に雌ねじを設けた固
定リングを螺合させた後、該シャフトを内輪に嵌め入
れ、更に、該内輪を嵌め入れた後内周面に雌ねじを設け
た固定リングを螺合させ、これらの固定リングで両側を
固定された前記内輪を嵌め入れて成ることを特徴とする
すべり軸受。1. A fixing method in which a fixing ring having an external thread provided on an outer peripheral surface thereof is screwed with a female screw provided on a housing, an outer ring is fitted into a female screw hole, and a male screw is provided on the outer peripheral surface after the outer ring is inserted. The rings are screwed together, the outer ring fixed on both sides by these fixing rings, the male screw provided on the shaft, the fixing ring provided with a female screw on the inner peripheral surface are screwed, and then the shaft is fitted into the inner ring, Further, a sliding bearing is formed by screwing a fixing ring provided with a female screw on the inner peripheral surface after fitting the inner ring, and fitting the inner ring fixed on both sides by these fixing rings.
グには、側面に軸方向に対して傾斜するテ−パを設けた
突起部を形成し、ハウジングに螺合させる他方の固定リ
ングには、前記固定リングに設けた突起部に対向する側
の側面にテ−パを設けた突起部を形成し、外輪の内周面
両端部には、前記二つの突起部に設けたテ−パと接合す
るテ−パ面を設け、前記二つの固定リングのテ−パ面と
外輪のテ−パ面とをそれぞれ接合して該外輪を固定して
成ることを特徴とする請求項１に記載のすべり軸受。2. One of the fixing rings screwed to the housing is formed with a projection having a taper on the side surface which is inclined with respect to the axial direction, and the other fixing ring screwed to the housing is formed by: A tapered portion is formed on the side surface of the fixing ring opposite to the tapered portion, and the tapered portions provided on both ends of the inner peripheral surface of the outer ring are joined to the tapered portions provided on the two projecting portions. 2. The sliding device according to claim 1, wherein a tapered surface is provided, and the tapered surface of the two fixing rings and the tapered surface of the outer ring are respectively joined to fix the outer ring. bearing.
方の固定リングには、側面に軸方向に対して傾斜するテ
−パを設けた突起部を形成し、シャフトに設けた雄ねじ
に螺合させる他方の固定リングには、前記固定リングに
設けた突起部に対向する側の側面にテ−パを設けた突起
部を形成し、内輪の外周面両端部には、前記二つの突起
部に設けたテ−パと接合するテ−パ面を設け、前記二つ
の固定リングのテ−パ面と外輪のテ−パ面とをそれぞれ
接合して該内輪を固定して成ることを特徴とする請求項
１若しくは請求項２に記載のすべり軸受。3. A fixing ring, which is screwed to a male screw provided on a shaft, has a protrusion formed on a side surface thereof with a taper inclined with respect to the axial direction, and is screwed to a male screw provided on the shaft. The other fixing ring to be formed is formed with a protrusion provided with a taper on a side surface opposite to the protrusion provided on the fixing ring, and the two protrusions are provided at both ends of the outer peripheral surface of the inner ring. A taper surface is provided for joining with the provided taper, and the taper surface of the two fixing rings and the taper surface of the outer ring are respectively joined to fix the inner ring. The sliding bearing according to claim 1 or 2.
グには、側面に軸方向に対して傾斜するテ−パを設けた
突起部と内径方向に延設した鍔部とを形成し、ハウジン
グに螺合させる他方の固定リングには、前記固定リング
に設けた突起部に対向する側の側面にテ−パを設けた突
起部と内径方向に延設した鍔部とを形成し、外輪の内周
面両端部には、前記二つの突起部に設けたテ−パと接合
するテ−パ面を設けて該外輪を固定すると共に、 シャフトに設けた雄ねじに螺合させる一方の固定リング
には、側面に軸方向に対して傾斜するテ−パを設けた突
起部と外径方向に延設した鍔部とを形成し、該シャフト
に設けた雄ねじに螺合させる他方の固定リングには、前
記固定リングに設けた突起部に対向する側の側面にテ−
パを設けた突起部と外径方向に延設した鍔部とを形成
し、内輪の内周面両端部には、前記二つの突起部に設け
たテ−パと接合するテ−パ面を設けて該内輪を固定して
成ることを特徴とする請求項１に記載のすべり軸受。4. One of the fixing rings screwed to the housing is formed with a protrusion having a taper inclined on the side surface with respect to the axial direction and a flange portion extending in the inner diameter direction. The other fixing ring to be screwed is formed with a protrusion provided with a taper on a side surface on a side opposite to the protrusion provided on the fixing ring, and a flange portion extending in the inner diameter direction. At both ends of the peripheral surface, a taper surface to be joined to the taper provided at the two projections is provided to fix the outer ring, and one of the fixing rings to be screwed to the male screw provided at the shaft is provided. A projection formed on the side surface with a taper inclined with respect to the axial direction and a flange portion extending in the outer diameter direction, and the other fixing ring screwed to a male screw provided on the shaft, A tape is provided on the side surface on the side opposite to the projection provided on the fixing ring.
A taper surface is formed with a protrusion provided with a taper and a flange portion extending in the outer diameter direction, and a taper surface to be joined to the taper provided on the two protrusions is formed at both ends of the inner peripheral surface of the inner ring. The sliding bearing according to claim 1, wherein the inner ring is provided and the inner ring is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15622197A JP3897193B2 (en) | 1997-06-13 | 1997-06-13 | Plain bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15622197A JP3897193B2 (en) | 1997-06-13 | 1997-06-13 | Plain bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH112236A true JPH112236A (en) | 1999-01-06 |
| JP3897193B2 JP3897193B2 (en) | 2007-03-22 |
Family
ID=15623012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15622197A Expired - Fee Related JP3897193B2 (en) | 1997-06-13 | 1997-06-13 | Plain bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3897193B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2886892A1 (en) * | 2013-12-19 | 2015-06-24 | Aktiebolaget SKF | Method for producing a bearing component, bearing component, bearing assembly with the bearing component and use of the bearing component |
-
1997
- 1997-06-13 JP JP15622197A patent/JP3897193B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2886892A1 (en) * | 2013-12-19 | 2015-06-24 | Aktiebolaget SKF | Method for producing a bearing component, bearing component, bearing assembly with the bearing component and use of the bearing component |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3897193B2 (en) | 2007-03-22 |
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