JPH056436Y2 - - Google Patents
Info
- Publication number
- JPH056436Y2 JPH056436Y2 JP1988015669U JP1566988U JPH056436Y2 JP H056436 Y2 JPH056436 Y2 JP H056436Y2 JP 1988015669 U JP1988015669 U JP 1988015669U JP 1566988 U JP1566988 U JP 1566988U JP H056436 Y2 JPH056436 Y2 JP H056436Y2
- Authority
- JP
- Japan
- Prior art keywords
- hub
- rubber
- bearing mechanism
- ring
- vibration
- 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
- 239000006096 absorbing agent Substances 0.000 claims description 11
- 241001247986 Calotropis procera Species 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 235000014593 oils and fats Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000985973 Castilla ulei Species 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
Landscapes
- Support Of The Bearing (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、各種の回転駆動系に生起される振動
を減衰させる動的吸振器に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dynamic vibration absorber that damps vibrations generated in various rotary drive systems.
従来から、たとえば自動車の駆動系に生起され
る振動を吸収する吸振器の一種として、第２図に
示すように、断面略Ｌ形を呈する円環形のハブａ
の筒部外周に振動リングｂを同心的に離間配置
し、該ハブａと振動リングｂをゴム部材ｃにより
連結したものが知られている。ゴム部材ｃには、
このハブａと振動リングｂを結合する部分ｃ１の
ほかにハブａの外周側に突起部分ｃ２が交互等配
状に一体成形されている。
Conventionally, as a type of vibration absorber that absorbs vibrations generated in the drive system of an automobile, as shown in FIG.
It is known that a vibrating ring b is arranged concentrically and spaced apart on the outer periphery of a cylindrical portion of the hub a, and the hub a and the vibrating ring b are connected by a rubber member c. Rubber member c has
In addition to the portion c1 that connects the hub a and the vibration ring b, projecting portions c2 are integrally molded on the outer circumferential side of the hub a in an alternating and evenly spaced manner.
上記吸振器は、自動車駆動系のプロペラシヤフ
トにハブａを嵌着する等して該駆動系に生起され
るねじり方向（回転方向）の振動を吸収するもの
であるが、径方向の共振や遠心力の作用により一
定の回転数域において振動リングｂがハブａすな
わち回転中心に対して大きく偏心する事態を生
じ、新たな振動や騒音を発生させる問題を有して
いる。 The above-mentioned vibration absorber absorbs vibrations in the torsional direction (rotational direction) that are generated in the propeller shaft of an automobile drive system by fitting a hub a to the propeller shaft of the vehicle, etc. Due to the action of force, the vibration ring b becomes largely eccentric with respect to the hub a, that is, the center of rotation, in a certain rotational speed range, resulting in the problem of generating new vibrations and noise.
そこで第３図に示すように、ハブａと振動リン
グｂとの間に、両者ａ，ｂ相互の偏心を抑えるの
に十分な剛性を有するボールやローラ等のころが
り軸受ｄを介装した構成を備えてなるものや、第
４図に示すように、ハブａに形成した角部ｅを振
動リングｂ内周面と滑動させるよう軸受機構をな
すようにしたもの等が提案されている。 Therefore, as shown in Fig. 3, a configuration is adopted in which a rolling bearing d, such as a ball or roller, which has sufficient rigidity to suppress the mutual eccentricity of both a and b is interposed between the hub a and the vibration ring b. As shown in FIG. 4, a bearing mechanism has been proposed so that a corner e formed on a hub a slides on the inner circumferential surface of a vibration ring b.
ところが、これら第３図、第４図の構成になる
動的吸振器はいずれも、ころがり軸受ｄや角部ｅ
の潤滑の維持が困難であり、また、これらの部分
へのダストや泥水等の異物の侵入を阻止すること
ができないため、焼付きや作動不良等が生じ易い
といつた問題があつた。
However, these dynamic vibration absorbers with the configurations shown in Figures 3 and 4 all have rolling bearings d and corners e.
It is difficult to maintain lubrication in these parts, and it is also impossible to prevent foreign substances such as dust and muddy water from entering these parts, resulting in problems such as seizure and malfunction.
本考案は、このような問題に鑑み、ハブと振動
リング相互の偏心を抑える軸受機構を有する動的
吸振器において、長期に亘つて良好な性能を維持
することを目的とするものである。 In view of these problems, the present invention aims to maintain good performance over a long period of time in a dynamic vibration absorber having a bearing mechanism that suppresses mutual eccentricity between the hub and the vibration ring.
上記目的を達成するため、本考案の動的吸振器
は、ハブと前記ハブの外周側に配置した振動リン
グの間に軸受機構を介装し、前記ハブと前記振動
リングを前記軸受機構の軸方向両側においてそれ
ぞれゴムブツシユを介して接続し、前記ゴムブツ
シユが環状ゴムに円周方向に並ぶ複数の薄肉部を
形成したものであることを特徴とする。
In order to achieve the above object, the dynamic vibration absorber of the present invention includes a bearing mechanism interposed between a hub and a vibration ring disposed on the outer circumferential side of the hub, and the hub and the vibration ring are connected to the axis of the bearing mechanism. The rubber bushings are connected to each other via rubber bushings on both sides in the direction, and the rubber bushings are characterized in that a plurality of thin-walled parts arranged in the circumferential direction are formed on an annular rubber.
本考案の構成によれば軸受機構がハブ、振動リ
ングおよび軸方向一対のゴムブツシユによつて囲
まれる気密室内にあつて周囲が完全にシールされ
ており、このため軸受機構潤滑用の油脂類等の流
失および軸受機構への異物の侵入を阻止すること
ができる。ゴムブツシユは環状ゴムに円周方向に
並ぶ複数の薄肉部を形成したものであつて、薄肉
部以外の部分において従来と同じ吸振作用を奏
し、薄肉部においてシール作用を奏する。
According to the configuration of the present invention, the bearing mechanism is located in an airtight chamber surrounded by the hub, the vibrating ring, and a pair of rubber bushes in the axial direction, and the surroundings are completely sealed, so that oils and fats for lubricating the bearing mechanism cannot be used. It is possible to prevent spillage and foreign matter from entering the bearing mechanism. The rubber bushing is made by forming a plurality of thin-walled parts arranged in the circumferential direction on an annular rubber, and the parts other than the thin-walled parts exhibit the same vibration-absorbing effect as conventional ones, and the thin-walled parts exhibit a sealing effect.
以下、本考案に係る動的吸振器を、図示した実
施例に基づいて説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS A dynamic vibration absorber according to the present invention will be explained below based on illustrated embodiments.
第１図に示すように、ハブ１の外周側に振動リ
ング２が配置され、ハブ１と振動リング２の間に
両部材１，２を同心に保つ軸受機構５が介装され
ている。軸受機構５は樹脂製の滑り軸受である
が、他の滑り軸受または転がり軸受であつても良
い。ハブ１と振動リング２は軸受機構５の軸方向
両側においてそれぞれゴムブツシユ３を介して接
続され、ハブ１、振動リング２および軸方向一対
のこのゴムブツシユ３によつて囲まれる気密室４
が形成され、この気密室４の内部に軸受機構５が
配置されて、軸受機構５とハブ１または振動リン
グ２との摺動部を潤滑する潤滑材が外部へ流出す
るのを防止し、また外部の異物が摺動部へ侵入す
るのを防止している。ゴムブツシユ３はそれぞれ
環状ゴム３ａの内外周に環状のスリーブ３ｂ，３
ｃを加硫接着してハブ１と振動リング２の間に圧
入され、更に、環状ゴム３ａに円周方向に並ぶ複
数の薄肉部３a′を等配で形成してなる。環状ゴム
３ａはこの薄肉部３a′を形成したことにより動ば
ね定数を低下させており、望ましくは薄肉部３
a′をばね定数に関与させない程度にまで薄くして
薄肉部３a′にシール作用のみを奏させる。しかし
て、このようにすれば従来技術に対してゴムによ
る吸振特性を変更すること無く上記のシール効果
を追加することができる。 As shown in FIG. 1, a vibration ring 2 is disposed on the outer peripheral side of a hub 1, and a bearing mechanism 5 is interposed between the hub 1 and the vibration ring 2 to keep both members 1 and 2 concentric. Although the bearing mechanism 5 is a resin sliding bearing, it may be another sliding bearing or a rolling bearing. The hub 1 and the vibrating ring 2 are connected via rubber bushings 3 on both sides of the bearing mechanism 5 in the axial direction, and an airtight chamber 4 is surrounded by the hub 1, the vibrating ring 2, and the pair of rubber bushings 3 in the axial direction.
is formed, and a bearing mechanism 5 is disposed inside this airtight chamber 4 to prevent the lubricant that lubricates the sliding parts between the bearing mechanism 5 and the hub 1 or the vibration ring 2 from leaking to the outside. Prevents external foreign matter from entering the sliding part. The rubber bush 3 has annular sleeves 3b, 3 on the inner and outer peripheries of the annular rubber 3a, respectively.
c is vulcanized and bonded and press-fitted between the hub 1 and the vibration ring 2, and furthermore, a plurality of thin portions 3a' aligned in the circumferential direction are formed on the annular rubber 3a at equal intervals. The annular rubber 3a reduces the dynamic spring constant by forming the thin wall portion 3a', and it is preferable that the thin wall portion 3a'
By making a' so thin that it does not affect the spring constant, the thin wall portion 3a' only performs a sealing action. In this way, the above-mentioned sealing effect can be added to the conventional technology without changing the vibration absorption characteristics of the rubber.
以上説明したように、本考案の動的吸振器は、
ハブと振動リング相互の偏心運動を抑えるための
軸受機構が、前記ハブと振動リングの間に密封形
成された気密室内に位置しているため、潤滑用の
油脂類の流失や泥水等の異物侵入による焼付きや
作動不良等の不具合が解消されて長期間安定した
性能を維持することができる。またゴムブツシユ
の環状ゴムに薄肉部を形成して上記のシール効果
を得るようにしたために、この薄肉部をできるだ
け薄く成形することにより従来技術に対してゴム
による吸振特性を変更せずに済む。
As explained above, the dynamic vibration absorber of the present invention is
The bearing mechanism that suppresses eccentric movement between the hub and the vibrating ring is located in an airtight chamber that is sealed between the hub and the vibrating ring, which prevents lubricating oils and fats from flowing away and foreign substances such as muddy water from entering. This eliminates problems such as seizure and malfunction, allowing stable performance to be maintained over a long period of time. Further, since the above-mentioned sealing effect is obtained by forming a thin wall portion in the annular rubber of the rubber bushing, by molding this thin wall portion as thin as possible, it is not necessary to change the vibration absorption characteristics of the rubber compared to the prior art.
第１図は本考案の実施例に係る動的吸振器の半
裁断面図、第２図ないし第４図はそれぞれ従来の
動的吸振器を示す半裁正面図である。
１……ハブ、２……振動リング、３……ゴムブ
ツシユ、３ａ……環状ゴム、３a′……薄肉部、３
ｂ，３ｃ……スリーブ、４……気密室、５……軸
受機構。
FIG. 1 is a half-cut sectional view of a dynamic vibration absorber according to an embodiment of the present invention, and FIGS. 2 to 4 are half-cut front views of conventional dynamic vibration absorbers. 1...Hub, 2...Vibration ring, 3...Rubber bushing, 3a...Annular rubber, 3a'...Thin wall part, 3
b, 3c... Sleeve, 4... Airtight chamber, 5... Bearing mechanism.
Claims (1)
ング２の間に軸受機構５を介装し、前記ハブ１と
前記振動リング２を前記軸受機構５の軸方向両側
においてそれぞれゴムブツシユ３を介して接続
し、前記ゴムブツシユ３が環状ゴム３ａに円周方
向に並ぶ複数の薄肉部３a′を形成したものである
ことを特徴とする動的吸振器。 A bearing mechanism 5 is interposed between a hub 1 and a vibrating ring 2 disposed on the outer peripheral side of the hub 1, and the hub 1 and the vibrating ring 2 are connected to each other via rubber bushings 3 on both sides of the bearing mechanism 5 in the axial direction. A dynamic vibration absorber characterized in that the rubber bush 3 is formed by forming a plurality of thin-walled parts 3a' arranged in the circumferential direction on an annular rubber 3a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988015669U JPH056436Y2 (en) | 1987-03-30 | 1988-02-10 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4563487 | 1987-03-30 | ||
| JP1988015669U JPH056436Y2 (en) | 1987-03-30 | 1988-02-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63171744U JPS63171744U (en) | 1988-11-08 |
| JPH056436Y2 true JPH056436Y2 (en) | 1993-02-18 |
Family
ID=33100126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988015669U Expired - Lifetime JPH056436Y2 (en) | 1987-03-30 | 1988-02-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH056436Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002168293A (en) * | 2000-11-30 | 2002-06-14 | Nok Vibracoustic Kk | Dynamic damper |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6325849B2 (en) * | 1982-02-22 | 1988-05-27 | Toyota Motor Co Ltd |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6325849U (en) * | 1986-08-01 | 1988-02-20 |
-
1988
- 1988-02-10 JP JP1988015669U patent/JPH056436Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6325849B2 (en) * | 1982-02-22 | 1988-05-27 | Toyota Motor Co Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63171744U (en) | 1988-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5476326A (en) | Synthetic resin bearing | |
| JP2680280B2 (en) | Torsional elastic coupling | |
| US2102415A (en) | Propeller shaft bearing | |
| JPH0587191A (en) | Elastic joint for which bearing and torsion stopper are integrated | |
| JPH056436Y2 (en) | ||
| JPH0791526A (en) | Belt pulley | |
| JPH0533813Y2 (en) | ||
| JPH0642117Y2 (en) | Torsional damper | |
| JP4434396B2 (en) | Center bearing support | |
| JPH058357Y2 (en) | ||
| JPH0724678Y2 (en) | damper | |
| JP2020100343A (en) | In-wheel motor driving device | |
| JP2593074Y2 (en) | Torsion damper | |
| JPH0623791Y2 (en) | Anti-vibration structure of propeller shaft | |
| JPS6115327Y2 (en) | ||
| JPH0320574Y2 (en) | ||
| JPS61197834A (en) | Vibration preventing device of rotary unit | |
| JPH0325454Y2 (en) | ||
| JP3627769B2 (en) | damper | |
| JPH0732979Y2 (en) | Synthetic resin bearing | |
| JP3093126B2 (en) | Axle support structure of steering device | |
| JP2564691Y2 (en) | Center bearing support | |
| JPH0310433Y2 (en) | ||
| JPH0126916Y2 (en) | ||
| JPH0527700Y2 (en) |