JPH0694076A - Torsional damper - Google Patents
Torsional damperInfo
- Publication number
- JPH0694076A JPH0694076A JP26666692A JP26666692A JPH0694076A JP H0694076 A JPH0694076 A JP H0694076A JP 26666692 A JP26666692 A JP 26666692A JP 26666692 A JP26666692 A JP 26666692A JP H0694076 A JPH0694076 A JP H0694076A
- Authority
- JP
- Japan
- Prior art keywords
- disk
- rubber
- inertial mass
- hub
- inertia mass
- 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.)
- Pending
Links
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 238000013016 damping Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Landscapes
- Pulleys (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、エンジンのクランク
シャフト，車両のドライブシャフト，プロペラシャフト
等の回転軸の捩り振動を低減する粘性流体入りのトーシ
ョナルダンパに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a torsional damper containing a viscous fluid for reducing torsional vibrations of rotary shafts such as engine crankshafts, vehicle driveshafts and propeller shafts.
【０００２】[0002]
【従来の技術】従来の粘性流体入りトーショナルダンパ
としては、クランクシャフト等の回転軸にハブを固定
し、このハブに半径方向に延出する延出部を設け、この
延出部にゴムを介して延出部の軸方向に位置して第１慣
性マスを取付け、ハブに半径方向に延びる円板を固定
し、この円板をハブの半径方向に延びるようにゴムを介
して取付けられた第２慣性マスと第１慣性マスとで挟
み、第１及び第２慣性マスとで挟まれた円板の周囲に粘
性流体が封入される間隙を形成したものが知られてい
る。2. Description of the Related Art As a conventional torsional damper containing a viscous fluid, a hub is fixed to a rotating shaft such as a crankshaft, and an extending portion extending in the radial direction is provided on the hub. The first inertial mass is attached to the hub in the axial direction, the disk extending in the radial direction is fixed to the hub, and the disk is attached via the rubber so as to extend in the radial direction of the hub. It is known that a disc sandwiched between a second inertial mass and a first inertial mass, and a disc sandwiched between the first and second inertial masses, has a gap in which a viscous fluid is enclosed.
【０００３】[0003]
【発明が解決しようとする課題】従来のトーショナルダ
ンパにおける円板は、第１慣性マスと第２慣性マスとか
ら等間隔の位置に設けてあり、第１慣性マスと円板との
間及び第２慣性マスと円板との間の両方で振動を減衰し
ていた。そのために第１慣性マスからこのマスの軸方向
に結合されたゴムに多くの熱が伝達され、ゴムの耐久寿
命を著しく縮めてしまうという不都合があった。DISCLOSURE OF THE INVENTION Discs in a conventional torsional damper are provided at positions equidistant from the first inertial mass and the second inertial mass, and between the first inertial mass and the disc. Vibration was damped both between the second inertial mass and the disc. Therefore, a large amount of heat is transferred from the first inertial mass to the rubber coupled in the axial direction of the mass, which causes a disadvantage that the durable life of the rubber is significantly shortened.
【０００４】そこで、この発明は、延出部と第１慣性マ
スとの間のゴムへ伝達される熱を少なくし、ゴムの耐久
寿命を向上させたトーショナルダンパを提供することを
目的とする。Therefore, an object of the present invention is to provide a torsional damper in which the heat transferred to the rubber between the extending portion and the first inertial mass is reduced and the durability life of the rubber is improved. .
【０００５】[0005]
【課題を解決するための手段】上述の目的を達成するた
め、この発明は、延出部にゴムを介して取付けられた第
１慣性マスと円板との間の間隔を第２慣性マスと円板と
の間の間隔よりも広くしたものである。In order to achieve the above-mentioned object, the present invention sets the distance between the first inertial mass attached to the extension part via the rubber and the disc to the second inertial mass. It is wider than the distance from the disc.
【０００６】[0006]
【作用】回転軸に捩り振動が発生すると、ゴムを介して
延出部とハブとに取付けられた第１及び第２慣性マスが
ダンパーとして作用するとともに、円板と第１・第２慣
性マスとの相対的移動に伴う粘性流体の流動による減衰
作用が生ずる。このとき、延出部側のゴムへ伝達される
熱は、円板と第１慣性マスとの間隔が広いために少なく
なり、ゴムの耐久寿命が向上することとなる。When the torsional vibration is generated on the rotating shaft, the first and second inertial masses attached to the extension portion and the hub through the rubber act as dampers, and the disc and the first and second inertial masses are actuated. There is a damping action due to the flow of the viscous fluid due to the relative movement with. At this time, the heat transferred to the rubber on the extension portion side is reduced because the distance between the disc and the first inertial mass is wide, and the durability life of the rubber is improved.
【０００７】[0007]
【実施例】以下に、この発明の好適な実施例を図面を参
照にして説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings.
【０００８】図１及び図２に示す第１実施例では、クラ
ンクシャフト等の回転軸（図示せず）にハブ１を固定
し、このハブ１に半径方向に延出する延出部２を設け、
この延出部２にゴム３を介して延出部２の軸方向に位置
して第１慣性マス４を取付け、ハブ１に半径方向に延び
る円板５を固定し、この円板５をハブ１の半径方向に延
びるようにゴム６を介して取付けられた第２慣性マス７
と第１慣性マス４とで挟んである。第１及び第２慣性マ
ス４，７の間に挟まれた円板５の周囲には粘性流体が封
入される間隙８を形成してある。延出部２とハブ１とは
別体に形成してあり、ハブ１の半径方向に突出する鍔部
１Ａにこの延出部２をボルト９で取付けるようになって
いる。このボルト９で延出部２を鍔部１Ａに取付ける際
に円板５もハブ１に固定する。このようなトーショナル
ダンパを組立てるには、最初にハブ１の鍔部１Ａに第２
慣性マス７をゴム６を介して接着したものを製作する。
これは、加硫金型にハブ１と第２慣性マス７とをセット
し、ゴム６を加硫接着することで、鍔部１Ａの外周に第
２慣性マス７をゴム６を介して取付けることができる。
延出部２とこの延出部２にゴム３を介して取付けられる
第１慣性マス４とは、加硫金型に延出部２と第１慣性マ
ス４とをセットし、両者の間にゴム３を加硫成形するこ
とにより一体化されたものを製作できる。このようにし
て一体成形された延出部２，ゴム３，第１慣性マス４を
ハブ１に嵌合させ、ハブ１の鍔部１Ａの個所でボルト９
で両者を一体化すればよい。第１慣性マス４と円板５と
の間の間隔ｔ1 を第２慣性マス７と円板５との間の間隔
ｔ2 よりも広くする。In the first embodiment shown in FIGS. 1 and 2, the hub 1 is fixed to a rotating shaft (not shown) such as a crankshaft, and the hub 1 is provided with an extending portion 2 extending in the radial direction. ,
A first inertial mass 4 is attached to the extension portion 2 via the rubber 3 in the axial direction of the extension portion 2, a disk 5 extending in the radial direction is fixed to the hub 1, and the disk 5 is attached to the hub. A second inertial mass 7 attached via a rubber 6 so as to extend in the radial direction of 1.
And the first inertial mass 4 between them. A disk 8 sandwiched between the first and second inertial masses 4 and 7 has a gap 8 formed around the viscous fluid. The extension 2 and the hub 1 are formed separately, and the extension 2 is attached to the flange 1A of the hub 1 protruding in the radial direction with a bolt 9. The disk 5 is also fixed to the hub 1 when the extension 2 is attached to the collar 1A with the bolt 9. In order to assemble such a torsional damper, first, the second collar is attached to the collar portion 1A of the hub 1.
The inertia mass 7 is bonded via the rubber 6 to produce it.
This is to set the hub 1 and the second inertial mass 7 in a vulcanizing mold, and vulcanize and bond the rubber 6 so that the second inertial mass 7 is attached to the outer periphery of the collar portion 1A via the rubber 6. You can
The extension part 2 and the first inertial mass 4 attached to the extension part 2 via the rubber 3 are set by setting the extension part 2 and the first inertial mass 4 in a vulcanization mold, and between them. An integrated product can be manufactured by vulcanizing the rubber 3. The extending portion 2, the rubber 3, and the first inertial mass 4 integrally formed in this manner are fitted to the hub 1, and the bolt 9 is attached at the flange portion 1A of the hub 1.
You can integrate both with. The distance t 1 between the first inertial mass 4 and the disk 5 is made wider than the distance t 2 between the second inertial mass 7 and the disk 5.
【０００９】図３に示す第２実施例では、延出部２をハ
ブ１と一体に成形し、この延出部２を先の実施例とは左
右逆に設けた例を示すものである。この延出部２にはゴ
ム３を介して第１慣性マス４が取付けてあり、この第１
慣性マス４に第２慣性マス７が円板５を挟むようにして
取付けてある。このとき第１慣性マス４と円板５との間
の間隔ｔ1 は第２慣性マス７と円板５との間隔ｔ2 より
も大きい。The second embodiment shown in FIG. 3 shows an example in which the extending portion 2 is integrally formed with the hub 1 and the extending portion 2 is provided in the left-right direction opposite to the previous embodiment. A first inertial mass 4 is attached to the extending portion 2 via a rubber 3, and
A second inertial mass 7 is attached to the inertial mass 4 so as to sandwich the disc 5. At this time, the distance t 1 between the first inertial mass 4 and the disk 5 is larger than the distance t 2 between the second inertial mass 7 and the disk 5.
【００１０】図４に示す第３実施例は、円板５と第１慣
性マス４との間、円板５と第２慣性マス７との間に合成
樹脂材料等で形成されたスペーサ９を設けた例を示すも
のである。このスペーサ９は第１及び第２慣性マス４，
７側に固着してもよいし、円板５の両側に固着してもよ
い。この実施例においても第１慣性マス４と円板５の間
の間隔ｔ1 は第２慣性マス７と円板５との間隔ｔ2 より
も大きい。In the third embodiment shown in FIG. 4, a spacer 9 made of a synthetic resin material or the like is provided between the disk 5 and the first inertial mass 4 and between the disk 5 and the second inertial mass 7. The example provided is shown. The spacer 9 includes the first and second inertia masses 4,
It may be fixed to the 7 side or both sides of the disc 5. Also in this embodiment, the distance t 1 between the first inertial mass 4 and the disk 5 is larger than the distance t 2 between the second inertial mass 7 and the disk 5.
【００１１】図５に示す第４実施例では、第１慣性マス
４のゴム３とが接着する個所と反対側の面と円板５との
間の間隔ｔ1 のみを第２慣性マス７と円板５との間の間
隔ｔ2 よりも大きくした。すなわち、ゴム３が存在しな
い個所においては、第１慣性マス４と円板５との間の間
隔ｔ2 は第２慣性マス７と円板５との間の間隔ｔ2 と同
一とした。In the fourth embodiment shown in FIG. 5, only the distance t 1 between the disk 5 and the surface of the first inertial mass 4 on the opposite side of the surface where the rubber 3 adheres and the disc 5 is the second inertial mass 7. It is set to be larger than the interval t 2 between the circular plate 5 and the circular plate 5. That is, in the places where the rubber 3 does not exist, the interval t 2 between the first inertia mass 4 and the disc 5 was the same as the interval t 2 between the disc 5 and the second centrifugal mass 7.
【００１２】図６に示す第５実施例では、第１慣性マス
４の円板５に対向する面を軸芯方向に近づくに従って円
板５から遠ざかるようなテーパ形状に形成し、少なくと
もゴム３が存在する個所の第１慣性マス４の内側の面と
円板５との間隔は第２慣性マス７と円板５の間隔よりも
広くし、図面上間隔ｔ1 は間隔ｔ2 よりも広くしてあ
る。In the fifth embodiment shown in FIG. 6, the surface of the first inertial mass 4 facing the disk 5 is formed in a taper shape so as to move away from the disk 5 in the axial direction, and at least the rubber 3 is formed. The distance between the inner surface of the first inertial mass 4 and the disk 5 at the existing position is wider than the distance between the second inertial mass 7 and the disk 5, and the distance t 1 in the drawing is larger than the distance t 2. There is.
【００１３】[0013]
【発明の効果】以上説明したように、この発明では、延
出部にゴムを介して取付けられた第１慣性マスと円板と
の間の間隔を第２慣性マスと円板との間の間隔よりも広
くしたので、ゴムへ伝達する熱は少なくなり、ゴムの耐
久寿命を向上させることができる。As described above, according to the present invention, the distance between the first inertial mass attached to the extension portion via the rubber and the disc is set to the distance between the second inertial mass and the disc. Since the distance is wider than the interval, less heat is transferred to the rubber, and the durable life of the rubber can be improved.
【図１】第１実施例を示す要部の拡大断面図。FIG. 1 is an enlarged cross-sectional view of a main part showing a first embodiment.
【図２】第１実施例の上半分を示す断面図。FIG. 2 is a sectional view showing the upper half of the first embodiment.
【図３】第２実施例を示す断面図。FIG. 3 is a sectional view showing a second embodiment.
【図４】第３実施例を示す断面図。FIG. 4 is a sectional view showing a third embodiment.
【図５】第４実施例を示す断面図。FIG. 5 is a sectional view showing a fourth embodiment.
【図６】第５実施例を示す断面図。FIG. 6 is a sectional view showing a fifth embodiment.
１ ハブ ２ 延出部 ３ ゴム ４ 第１慣性マス ５ 円板 ６ ゴム ７ 第２慣性マス ８ 間隙 ｔ1 ，ｔ2 間隔1 hub 2 extension part 3 rubber 4 first inertial mass 5 disk 6 rubber 7 second inertial mass 8 gap t 1 , t 2 interval
Claims (1)
定し、このハブに半径方向に延出する延出部を設け、こ
の延出部にゴムを介して延出部の軸方向に位置して第１
慣性マスを取付け、ハブに半径方向に延びる円板を固定
し、この円板をハブの半径方向に延びるようにゴムを介
して取付けられた第２慣性マスと第１慣性マスとで挟
み、第１及び第２慣性マスとで挟まれた円板の周囲に粘
性流体が封入される間隙を形成したトーショナルダンパ
において、 第１慣性マスと円板との間の間隔を第２慣性マスと円板
との間の間隔よりも広くしたことを特徴とするトーショ
ナルダンパ。1. A hub is fixed to a rotary shaft such as a crankshaft, and an extension portion extending in the radial direction is provided on the hub, and the extension portion is positioned in the axial direction of the extension portion via rubber. First
An inertial mass is attached, a disk extending in the radial direction is fixed to the hub, and the disk is sandwiched between a second inertial mass and a first inertial mass mounted via rubber so as to extend in the radial direction of the hub. In a torsional damper in which a viscous fluid is enclosed around a disk sandwiched between the first inertial mass and the second inertial mass, the distance between the first inertial mass and the disk is set to the second inertial mass and the circle. A torsional damper characterized by being wider than the space between the plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26666692A JPH0694076A (en) | 1992-09-09 | 1992-09-09 | Torsional damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26666692A JPH0694076A (en) | 1992-09-09 | 1992-09-09 | Torsional damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0694076A true JPH0694076A (en) | 1994-04-05 |
Family
ID=17434006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26666692A Pending JPH0694076A (en) | 1992-09-09 | 1992-09-09 | Torsional damper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0694076A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2020054311A1 (en) * | 2018-09-12 | 2021-04-30 | 株式会社Ihi | Upward butt welding method and upward butt welding trolley |
-
1992
- 1992-09-09 JP JP26666692A patent/JPH0694076A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2020054311A1 (en) * | 2018-09-12 | 2021-04-30 | 株式会社Ihi | Upward butt welding method and upward butt welding trolley |
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