JPH085372Y2 - Center bearing support - Google Patents
Center bearing supportInfo
- Publication number
- JPH085372Y2 JPH085372Y2 JP1990066720U JP6672090U JPH085372Y2 JP H085372 Y2 JPH085372 Y2 JP H085372Y2 JP 1990066720 U JP1990066720 U JP 1990066720U JP 6672090 U JP6672090 U JP 6672090U JP H085372 Y2 JPH085372 Y2 JP H085372Y2
- Authority
- JP
- Japan
- Prior art keywords
- center bearing
- dynamic damper
- connecting member
- inner ring
- bearing support
- 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
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- F16C27/06—Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
- F16C27/066—Ball or roller bearings
-
- 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
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- 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
- F16C2326/06—Drive shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
- Vibration Prevention Devices (AREA)
- Motor Power Transmission Devices (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、自動車の車体の下面に吊設され、車体の下
側に横架されるプロペラシャフトを弾性的に支持するセ
ンターベアリングサポートに関する。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a center bearing support that elastically supports a propeller shaft that is hung on the lower surface of a vehicle body of a vehicle and that is laid horizontally under the vehicle body.
従来から、第２図に示すように、金属製の内環（１）
と金属製の外環（２）とを同軸上に配置し、この内環
（１）と外環（２）とをベロー状を呈するゴム状弾性材
製のバネ部材（３）を介して接続してなる構造を有し、
外環（２）をブラケット（４）を介して自動車の車体の
下面に吊設固定するとともに内環（１）の内周側にセン
ターベアリング（５）を介してプロペラシャフト（６）
を貫挿し、このプロペラシャフト（６）の重量の一部を
支えるとともにこのシャフト（６）の回転時に生起され
る振動（振れ回り）をバネ部材（３）の弾性を利用して
抑えるように機能するセンターベアリングサポートが知
られている。Conventionally, as shown in FIG. 2, a metal inner ring (1)
And a metal outer ring (2) are coaxially arranged, and the inner ring (1) and the outer ring (2) are connected via a spring member (3) made of a rubber-like elastic material having a bellows shape. Has a structure consisting of
The outer ring (2) is suspended and fixed to the lower surface of the vehicle body of the automobile via the bracket (4), and the propeller shaft (6) is attached to the inner peripheral side of the inner ring (1) via the center bearing (5).
To support a part of the weight of the propeller shaft (6) and to suppress the vibration (whistle) generated when the shaft (6) rotates by using the elasticity of the spring member (3). A center bearing support is known.
しかしながらこの従来のセンターベアリングサポート
に対しては、以下の問題が指摘されている。すなわち、
上記従来のセンターベアリングサポートには、プロペラ
シャフト（６）からセンターベアリング（５）を介して
車体に伝達される振動（振れ回り）を低減する機能があ
るのみで、プロペラシャフト（６）およびセンターベア
リング（５）に発生する捩り振動を低減する働きがな
く、このため、バネ部材（３）の耐久性が低いという問
題がある。However, the following problems have been pointed out regarding this conventional center bearing support. That is,
The above-mentioned conventional center bearing support only has a function of reducing the vibration (whirling) transmitted from the propeller shaft (6) to the vehicle body through the center bearing (5). There is no function to reduce the torsional vibration generated in (5), and therefore there is a problem that the durability of the spring member (3) is low.
本考案は以上の点に鑑み、上記従来技術にみられる問
題を解消すべく案出されたものであって、この目的を達
成するため、内環および外環をベロー状を呈するゴム状
弾性材製のバネ部材を介して接続し、前記内環の内周側
にセンターベアリングを取着するセンターベアリングサ
ポートにおいて、前記内環の外周側に、略円錐形状を呈
するとともにダイナミックダンパの連結部材として必要
とされる所定のバネ定数を備えたゴム状弾性材製の連結
部材と、前記連結部材の先端部に取り付けられ、環状を
呈するとともにダイナミックダンパの質量体として必要
とされる所定の慣性質量を備えた質量体とを有して、プ
ロペラシャフトおよびセンターベアリングに発生する捩
り振動を吸収抑制するダイナミックダンパを設けること
にした。In view of the above points, the present invention has been devised to solve the above-mentioned problems in the prior art, and in order to achieve this object, a rubber-like elastic material having a bellows-shaped inner ring and outer ring. In a center bearing support that is connected via a spring member made of steel and has a center bearing attached to the inner peripheral side of the inner ring, it has a substantially conical shape on the outer peripheral side of the inner ring and is required as a connecting member of a dynamic damper. A connecting member made of a rubber-like elastic material having a predetermined spring constant, and a predetermined inertial mass attached to the tip of the connecting member, having a ring shape, and required as a mass body of the dynamic damper. And a mass body, and a dynamic damper for suppressing the torsional vibration generated in the propeller shaft and the center bearing is provided.
上記構成を備えた本考案のセンターベアリングサポー
トのように、内環の外周側に、略円錐形状を呈するとと
もにダイナミックダンパの連結部材として必要とされる
所定のバネ定数を備えたゴム状弾性材製の連結部材と、
この連結部材の先端部に取り付けられ、環状を呈すると
ともにダイナミックダンパの質量体として必要とされる
所定の慣性質量を備えた質量体とを有して、プロペラシ
ャフトおよびセンターベアリングに発生する捩り振動を
吸収抑制するダイナミックダンパが設けられていると、
このダイナミックダンパの共振作動によって、プロペラ
シャフトおよびセンターベアリングに発生する捩り振動
を吸収抑制することが可能である。但し、ダイナミック
ダンパを捩り振動に対して共振作動させるためには、ダ
イナミックダンパの固有振動数を捩り振動の周波数に合
わせるべく、連結部材のバネ定数および質量体の慣性質
量をそれぞれ適切に設定する必要があり、この設定が不
適切であると、質量体が単なるストッパないし補強環に
なってしまう。Like the center bearing support of the present invention having the above structure, it is made of a rubber-like elastic material having a substantially conical shape on the outer peripheral side of the inner ring and having a predetermined spring constant required as a connecting member of the dynamic damper. Connection member of
The torsional vibration generated in the propeller shaft and the center bearing is attached to the tip of the connecting member and has a ring-shaped mass body having a predetermined inertial mass required as a mass body of the dynamic damper. If a dynamic damper that suppresses absorption is provided,
By the resonance operation of the dynamic damper, it is possible to absorb and suppress the torsional vibration generated in the propeller shaft and the center bearing. However, in order to make the dynamic damper resonate with respect to the torsional vibration, it is necessary to properly set the spring constant of the connecting member and the inertial mass of the mass body so that the natural frequency of the dynamic damper matches the frequency of the torsional vibration. However, if this setting is improper, the mass body simply becomes a stopper or a reinforcing ring.
つぎに本考案の実施例を図面にしたがって説明する。 Next, an embodiment of the present invention will be described with reference to the drawings.
第１図に示すように、金属製の内環（１）と金属製の
外環（２）とが同軸上に配置され、この内環（１）と外
環（２）とがベロー状を呈するゴム状弾性材製のバネ部
材（３）を介して互いに接続され、内環（２）の外周側
に、スリーブ（８）、ゴム状弾性材製の連結部材
（９）、質量体（10）よりなるダイナミックダンパ
（７）が嵌着されている。スリーブ（８）は板金等の金
属、質量体（10）は鋳鉄等の金属によって環状に成形さ
れ、この両者（８）（10）に対して連結部材（９）が加
硫接着されており、このように内環（１）の外周側にダ
イナミックダンパ（７）が設置されていることによっ
て、プロペラシャフトおよびセンターベアリング（５）
に発生する捩り振動を吸収抑制することができるように
なっている。但し、ダイナミックダンパ（７）を捩り振
動に対して共振作動させてこの捩り振動を吸収抑制する
ためには、ダイナミックダンパ（７）の固有振動数を捩
り振動の周波数に合わせるべく、連結部材（９）のバネ
定数および質量体（10）の慣性質量をそれぞれ適切に設
定する必要があり、この設定が不適切であると、質量体
（10）が単なるストッパないし補強環になってしまうの
で、注意を要する。また上記構成のセンターベアリング
サポートにおいては、ダイナミックダンパ（７）を構成
するゴム状弾性材製の連結部材（９）が略円錐形状に成
形されているために、これが例えば断面略Ｕ字形または
断面略く字形に形成されている場合と比較して、剛性が
低く抑えられる。したがって例えばエンジンのクランク
シャフトと比較して低速で回転するプロペラシャフトに
対する捩り振動吸収手段として、好適な固有振動数を設
定し易い特徴を有していると言うことができる。As shown in FIG. 1, a metal inner ring (1) and a metal outer ring (2) are coaxially arranged, and the inner ring (1) and the outer ring (2) are in a bellows shape. Connected to each other via a spring member (3) made of a rubber-like elastic material, and a sleeve (8), a connecting member (9) made of a rubber-like elastic material, and a mass body (10) on the outer peripheral side of the inner ring (2). The dynamic damper (7) consisting of (1) is fitted. The sleeve (8) is formed of a metal such as sheet metal, and the mass body (10) is formed of a metal such as cast iron into an annular shape. The connecting member (9) is vulcanized and adhered to both (8) and (10), Since the dynamic damper (7) is installed on the outer peripheral side of the inner ring (1), the propeller shaft and the center bearing (5) are installed.
It is possible to suppress and suppress the torsional vibration generated in the. However, in order to cause the dynamic damper (7) to resonate with respect to the torsional vibration and suppress the absorption of the torsional vibration, the coupling member (9 ) The spring constant and the mass of inertia of the mass body (10) must be set appropriately. If this setting is not appropriate, the mass body (10) will simply be a stopper or a reinforcing ring. Requires. Further, in the center bearing support having the above structure, since the connecting member (9) made of the rubber-like elastic material forming the dynamic damper (7) is formed into a substantially conical shape, this has, for example, a substantially U-shaped cross section or a substantially cross-sectional shape. Rigidity can be kept low as compared with the case where it is formed in a V shape. Therefore, it can be said that, for example, as a torsional vibration absorbing means for a propeller shaft that rotates at a lower speed than a crankshaft of an engine, it is possible to easily set a suitable natural frequency.
本考案は、以下の効果を奏する。 The present invention has the following effects.
すなわち、上記構成を備えた本考案のセンターベアリ
ングサポートにおいては、内環の外周側に、略円錐形状
を呈するとともにダイナミックダンパの連結部材として
必要とされる所定のバネ定数を備えたゴム状弾性材製の
連結部材と、この連結部材の先端部に取り付けられ、環
状を呈するとともにダイナミックダンパの質量体として
必要とされる所定の慣性質量を備えた質量体とを有し
て、プロペラシャフトおよびセンターベアリングに発生
する捩り振動を吸収抑制するダイナミックダンパが設け
られているために、このダイナミックダンパの共振作動
によって、プロペラシャフトおよびセンターベアリング
に発生する捩り振動を吸収抑制することができ、これに
よりバネ部材の耐久性を向上させることができる。また
上記構成を備えた本考案のセンターベアリングサポート
においては、ダイナミックダンパを構成するゴム状弾性
材製の連結部材が略円錐形状に成形されているために、
これが例えば断面略Ｕ字形または断面略く字形に成形さ
れている場合と比較して、剛性が低く抑えられる。した
がって例えばエンジンのクランクシャフトと比較して低
速で回転するプロペラシャフトに対する捩り振動吸収手
段として、好適な固有振動数を設定し易い特徴を有して
いると言うことができる。That is, in the center bearing support of the present invention having the above structure, a rubber-like elastic material having a substantially conical shape on the outer peripheral side of the inner ring and having a predetermined spring constant required as a connecting member of the dynamic damper. A propeller shaft and a center bearing having a connecting member made of metal and a mass body attached to the tip of the connecting member, the mass body having an annular shape and having a predetermined inertial mass required as a mass body of a dynamic damper, Since a dynamic damper that suppresses and absorbs the torsional vibration that occurs is provided, it is possible to absorb and suppress the torsional vibration that occurs in the propeller shaft and the center bearing by the resonant operation of this dynamic damper, and thus, The durability can be improved. Further, in the center bearing support of the present invention having the above configuration, since the connecting member made of the rubber-like elastic material that constitutes the dynamic damper is formed in a substantially conical shape,
The rigidity can be suppressed to be low as compared with the case where it is formed in, for example, a substantially U-shaped cross section or a substantially V-shaped cross section. Therefore, it can be said that, for example, as a torsional vibration absorbing means for a propeller shaft that rotates at a lower speed than a crankshaft of an engine, it is possible to easily set a suitable natural frequency.
第１図は本考案の実施例に係るセンターベアリングサポ
ートの半裁断面図、第２図は従来例に係るセンターベア
リングサポートの半裁断面図である。 （１）内環、（２）外環、（３）バネ部材、（４）ブラ
ケット （５）センターベアリング、（６）プロペラシャフト （７）ダイナミックダンパ、（８）スリーブ、（９）連
結部材、（10）質量体FIG. 1 is a half sectional view of a center bearing support according to an embodiment of the present invention, and FIG. 2 is a half sectional view of a center bearing support according to a conventional example. (1) Inner ring, (2) Outer ring, (3) Spring member, (4) Bracket (5) Center bearing, (6) Propeller shaft (7) Dynamic damper, (8) Sleeve, (9) Connecting member, (10) Mass body
Claims (1)
呈するゴム状弾性材製のバネ部材（３）を介して接続
し、前記内環（１）の内周側にセンターベアリング
（５）を取着するセンターベアリングサポートにおい
て、前記内環（１）の外周側に、略円錐形状を呈すると
ともにダイナミックダンパの連結部材として必要とされ
る所定のバネ定数を備えたゴム状弾性材製の連結部材
（９）と、前記連結部材（９）の先端部に取り付けら
れ、環状を呈するとともにダイナミックダンパの質量体
として必要とされる所定の慣性質量を備えた質量体（1
0）とを有して、プロペラシャフトおよびセンターベア
リング（５）に発生する捩り振動を吸収抑制するダイナ
ミックダンパ（７）を設けたことを特徴とするセンター
ベアリングサポート。1. An inner ring (1) and an outer ring (2) are connected via a spring member (3) made of a rubber-like elastic material having a bellows shape, and a center is provided on the inner peripheral side of the inner ring (1). In a center bearing support for mounting a bearing (5), a rubber-like elasticity having a substantially conical shape on the outer peripheral side of the inner ring (1) and having a predetermined spring constant required as a connecting member of a dynamic damper. A connecting member (9) made of a material, and a mass body (1) attached to the tip of the connecting member (9) and having an annular shape and having a predetermined inertial mass required as a mass body of a dynamic damper (1)
0) and a dynamic damper (7) for suppressing the torsional vibration generated in the propeller shaft and the center bearing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990066720U JPH085372Y2 (en) | 1990-06-22 | 1990-06-22 | Center bearing support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990066720U JPH085372Y2 (en) | 1990-06-22 | 1990-06-22 | Center bearing support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0425026U JPH0425026U (en) | 1992-02-28 |
| JPH085372Y2 true JPH085372Y2 (en) | 1996-02-14 |
Family
ID=31599667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990066720U Expired - Lifetime JPH085372Y2 (en) | 1990-06-22 | 1990-06-22 | Center bearing support |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH085372Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101310826B1 (en) * | 2011-08-10 | 2013-09-25 | 금오공과대학교 산학협력단 | Dynamic vibration absorber |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6817771B2 (en) * | 2002-08-28 | 2004-11-16 | Gkn Driveline North America, Inc. | Center bearing tuned absorber |
| JP2019173839A (en) * | 2018-03-28 | 2019-10-10 | Ntn株式会社 | Vibration damping device for bearing |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61188231A (en) * | 1985-02-15 | 1986-08-21 | Tokai Rubber Ind Ltd | Genter bearing mount |
| JPH0520895Y2 (en) * | 1985-12-05 | 1993-05-28 |
-
1990
- 1990-06-22 JP JP1990066720U patent/JPH085372Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101310826B1 (en) * | 2011-08-10 | 2013-09-25 | 금오공과대학교 산학협력단 | Dynamic vibration absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0425026U (en) | 1992-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |