JP2012141020A - Centrifugation pendulum vibration absorbing device - Google Patents
Centrifugation pendulum vibration absorbing device Download PDFInfo
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
- F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
- F16F15/145—Masses mounted with play with respect to driving means thus enabling free movement over a limited range
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- 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
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
- F16H2045/0263—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means the damper comprising a pendulum
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Abstract
Description
本発明は、回転要素に対して同軸に取り付けられる支持部材と、それぞれ支持部材に揺動自在に連結されると共に周方向に隣り合う複数の質量体とを備える遠心振子式吸振装置に関する。 The present invention relates to a centrifugal pendulum vibration absorber that includes a support member that is coaxially attached to a rotating element, and a plurality of mass bodies that are swingably connected to the support member and that are adjacent to each other in the circumferential direction.
従来、この種の遠心振子式吸振装置として、流体伝動装置のタービンランナに対して同軸に取り付けられる支持部材と、それぞれ支持ローラを介して支持部材に連結されると共に当該支持部材に対して揺動可能な複数の振子マス（質量体）を含むものが知られている（例えば、特許文献１参照）。この遠心振子式吸振装置では、支持部材の回転に伴って複数の振子マスが当該支持部材に対して同方向に揺動することで支持部材に伝達される振動が減衰される。 Conventionally, as this type of centrifugal pendulum type vibration absorber, a support member that is coaxially attached to a turbine runner of a fluid transmission device, and is connected to the support member via a support roller and swings with respect to the support member. The thing containing several possible pendulum mass (mass body) is known (for example, refer patent document 1). In this centrifugal pendulum vibration absorber, the vibration transmitted to the support member is attenuated by the plurality of pendulum masses swinging in the same direction with respect to the support member as the support member rotates.
上述のような遠心振子式吸振装置では、各質量体の重量を大きくするほど支持部材に伝達される振動をより効果的に減衰させることができる。しかしながら、遠心振子式吸振装置の各質量体の重量を大きくしようとすると基本的に質量体を大型化せざるを得ず、質量体の大型化に伴って互いに隣り合う質量体間のクリアランスが小さくなってしまう。このため、質量体を大型化して重量を確保した場合、例えば支持部材の回転数が比較的低く質量体の挙動が不安定になりがちなときに、互いに隣り合う質量体同士が接近して両者の端部同士が衝突し、異音の発生を招くおそれがある。 In the centrifugal pendulum vibration absorber as described above, the vibration transmitted to the support member can be attenuated more effectively as the weight of each mass body is increased. However, when trying to increase the weight of each mass body of the centrifugal pendulum vibration absorber, the mass body is basically increased in size, and the clearance between adjacent mass bodies decreases as the mass body increases in size. turn into. For this reason, when the mass body is enlarged and the weight is secured, for example, when the rotational speed of the support member is relatively low and the behavior of the mass body tends to become unstable, the adjacent mass bodies approach each other and both There is a possibility that the ends of the two parts collide with each other and cause abnormal noise.
そこで、本発明は、互いに隣り合う質量体同士の衝突や当該衝突に起因した異音の発生を抑制しつつ質量体の重量を確保することができる遠心振子式吸振装置の提供を主目的とする。 Accordingly, the main object of the present invention is to provide a centrifugal pendulum type vibration absorber capable of securing the weight of the mass body while suppressing the collision between the mass bodies adjacent to each other and the generation of abnormal noise caused by the collision. .
本発明の遠心振子式吸振装置は、上述の主目的を達成するために以下の手段を採っている。 The centrifugal pendulum type vibration absorber of the present invention employs the following means in order to achieve the main object described above.
本発明の遠心振子式吸振装置は、
回転要素に対して同軸に取り付けられる支持部材と、それぞれ前記支持部材に揺動自在に連結されると共に周方向に隣り合う複数の質量体とを備える遠心振子式吸振装置において、
前記複数の質量体は、互いに隣り合う２つの質量体の一方である第１質量体と他方である第２質量体とが互いに接近するように前記支持部材に対して移動したときに、前記第１質量体と前記第２質量体とが径方向からみて重なるように構成されることを特徴とする。
The centrifugal pendulum vibration absorber of the present invention is
In a centrifugal pendulum type vibration absorber provided with a support member that is coaxially attached to a rotating element, and a plurality of mass bodies that are swingably connected to the support member and are adjacent to each other in the circumferential direction,
When the plurality of mass bodies move relative to the support member such that a first mass body that is one of two mass bodies adjacent to each other and a second mass body that is the other are close to each other, 1 mass body and the said 2nd mass body are comprised so that it may overlap seeing from radial direction, It is characterized by the above-mentioned.
この遠心振子式吸振装置の複数の質量体は、互いに隣り合う２つの質量体の一方である第１質量体と他方である第２質量体とが互いに接近するように支持部材に対して移動したときに、第１質量体と第２質量体とが径方向からみて重なるように構成される。これにより、質量体の重量を確保するために当該質量体を大型化したことに起因して互いに隣り合う質量体間のクリアランスが小さくなったとしても、質量体の挙動が不安定になって互いに隣り合う質量体同士が接近したときに当該質量体同士が衝突するのを抑制することができる。従って、この遠心振子式吸振装置では、互いに隣り合う質量体同士の衝突や当該衝突に起因した異音の発生を抑制しつつ質量体の重量を確保することが可能となる。 The plurality of mass bodies of the centrifugal pendulum type vibration absorber have moved relative to the support member so that the first mass body, which is one of the two mass bodies adjacent to each other, and the second mass body, which is the other, approach each other. Sometimes, the first mass body and the second mass body are configured to overlap each other when viewed from the radial direction. As a result, even if the clearance between the adjacent mass bodies is reduced due to the increase in size of the mass body in order to ensure the weight of the mass body, the behavior of the mass bodies becomes unstable and When adjacent mass bodies approach, the mass bodies can be prevented from colliding with each other. Therefore, in this centrifugal pendulum type vibration absorber, it is possible to ensure the weight of the mass body while suppressing the collision between the mass bodies adjacent to each other and the generation of noise caused by the collision.
また、前記第１質量体の前記第２質量体側の端部は、前記支持部材の軸方向からみて先端に向かうにつれて外周面が内周面に近接するように先細に形成されてもよく、前記第２質量体の前記第１質量体側の端部は、前記軸方向からみて先端に向かうにつれて内周面が外周面に近接するように先細に形成されてもよい。これにより、第１質量体と第２質量体とが互いに接近するように支持部材に対して移動したときに、第１質量体の第２質量体側の端部と第２質量体の第１質量体側の端部とを径方向からみて重ならせることができる。 Further, the end of the first mass body on the second mass body side may be formed to be tapered so that the outer peripheral surface is closer to the inner peripheral surface as it goes to the tip when viewed from the axial direction of the support member, The end of the second mass body on the first mass body side may be tapered such that the inner peripheral surface is closer to the outer peripheral surface as it goes toward the tip when viewed from the axial direction. Accordingly, when the first mass body and the second mass body move relative to the support member so as to approach each other, the end portion of the first mass body on the second mass body side and the first mass of the second mass body. The body side end can be overlapped when viewed from the radial direction.
更に、前記複数の質量体のすべてが同一の重量を有すると共に、前記第１質量体と前記第２質量体とが互いに異なる構造を有してもよい。この場合、支持部材に対して１つおきに同一構造の質量体が配設されることになり、個々の質量体を基本的に左右対称の構造を有するものとすることができる。これにより、個々の質量体をバランスのよいものとして遠心振子式吸振装置の吸振性能を向上させることが可能となる。 Further, all of the plurality of mass bodies may have the same weight, and the first mass body and the second mass body may have different structures. In this case, every other mass body with the same structure is disposed with respect to the support member, and each mass body can basically have a symmetrical structure. Thereby, it becomes possible to improve the vibration absorption performance of the centrifugal pendulum vibration absorber by making each mass body well balanced.
また、前記複数の質量体のすべてが同一の構造および重量を有してもよい。このように、複数の質量体のすべてを同一の構造および重量を有するものとすれば、遠心振子式吸振装置における部品の種類を減らして遠心振子式吸振装置を低コスト化することが可能となる。 Further, all of the plurality of mass bodies may have the same structure and weight. Thus, if all the mass bodies have the same structure and weight, it is possible to reduce the cost of the centrifugal pendulum vibration absorber by reducing the types of parts in the centrifugal pendulum vibration absorber. .
更に、前記第１質量体の前記第２質量体側の端部と前記第２質量体の前記第１質量体側の端部とは、常に前記径方向からみて重なっていてもよい。これにより、各質量体をそれぞれ周方向に更に拡大して各質量体の重量をより増加させることが可能となる。 Furthermore, the end portion of the first mass body on the second mass body side and the end portion of the second mass body on the first mass body side may always overlap each other when viewed from the radial direction. Thereby, it becomes possible to further enlarge each mass body in the circumferential direction and further increase the weight of each mass body.
そして、前記支持部材は、原動機に連結される入力部材と変速装置の入力軸との間に配置されるダンパ機構の回転要素の何れかに接続されてもよい。これにより、入力部材と変速装置の入力軸との間で振動を遠心振子式吸振装置により減衰して当該振動が変速装置へと伝達されるのを良好に抑制することが可能となる。 The support member may be connected to any one of the rotating elements of the damper mechanism disposed between the input member coupled to the prime mover and the input shaft of the transmission. As a result, it is possible to satisfactorily suppress the vibration transmitted between the input member and the input shaft of the transmission from being attenuated by the centrifugal pendulum type vibration absorber and transmitted to the transmission.
次に、本発明を実施するための形態を実施例を用いて説明する。 Next, the form for implementing this invention is demonstrated using an Example.
図１は、本発明の実施例に係る遠心振子式吸振装置２０を含む流体伝動装置１の概略構成図である。同図に示す流体伝動装置１は、原動機としてのエンジン（内燃機関）を備えた車両に発進装置として搭載されるトルクコンバータであり、図示しないエンジンのクランクシャフトに連結されるフロントカバー（入力部材）３と、フロントカバー３に固定されたポンプインペラ（入力側流体伝動要素）４と、ポンプインペラ４と同軸に回転可能なタービンランナ（出力側流体伝動要素）５と、タービンランナ５からポンプインペラ４への作動油（作動流体）の流れを整流するステータ６と、図示しない自動変速機（ＡＴ）あるいは無段変速機（ＣＶＴ）である変速装置のインプットシャフト（入力軸）に固定されるダンパハブ（出力部材）７と、ダンパハブ７に接続されたダンパ機構８と、例えばダンパ機構８に接続された図示しないロックアップピストンを有する単板摩擦式のロックアップクラッチ機構９とを含む。 FIG. 1 is a schematic configuration diagram of a fluid transmission device 1 including a centrifugal pendulum vibration absorber 20 according to an embodiment of the present invention. A fluid transmission device 1 shown in the figure is a torque converter mounted as a starting device on a vehicle including an engine (internal combustion engine) as a prime mover, and is a front cover (input member) connected to a crankshaft of the engine (not shown). 3, a pump impeller (input side fluid transmission element) 4 fixed to the front cover 3, a turbine runner (output side fluid transmission element) 5 that can rotate coaxially with the pump impeller 4, and a pump impeller 4 from the turbine runner 5. A stator 6 that rectifies the flow of hydraulic oil (working fluid) to the motor, and a damper hub (fixed to an input shaft (input shaft) of a transmission that is an automatic transmission (AT) or a continuously variable transmission (CVT) (not shown)). Output member) 7, a damper mechanism 8 connected to the damper hub 7, and a locker (not shown) connected to the damper mechanism 8, for example. And a lock-up clutch mechanism 9 a single-plate friction type having Pupisuton.
ポンプインペラ４とタービンランナ５とは、互いに対向し合い、両者の間には、ポンプインペラ４やタービンランナ５と同軸に回転可能なステータ６が配置される。ステータ６の回転方向は、ワンウェイクラッチ６１により一方向のみに設定される。これらのポンプインペラ４、タービンランナ５およびステータ６は、作動油を循環させるトーラス（環状流路）を形成する。ただし、流体伝動装置１は、ポンプインペラ４、タービンランナ５およびステータ６を備えたトルクコンバータとして構成されるが、流体伝動装置１は、ステータを有さない流体継手として構成されてもよい。 The pump impeller 4 and the turbine runner 5 face each other, and a stator 6 that can rotate coaxially with the pump impeller 4 and the turbine runner 5 is disposed between the pump impeller 4 and the turbine runner 5. The rotation direction of the stator 6 is set to only one direction by the one-way clutch 61. The pump impeller 4, the turbine runner 5, and the stator 6 form a torus (annular flow path) for circulating hydraulic oil. However, although the fluid transmission device 1 is configured as a torque converter including the pump impeller 4, the turbine runner 5, and the stator 6, the fluid transmission device 1 may be configured as a fluid coupling that does not have a stator.
ダンパ機構８は、ロックアップクラッチ機構９のロックアップピストンに固定される入力要素としてのドライブ部材８０と、複数の第１コイルスプリング（第１弾性体）８１と、第１コイルスプリング８１を介してドライブ部材８０と係合する中間部材（中間要素）８３と、第１コイルスプリング８１よりも高い剛性（バネ定数）を有すると共に第１コイルスプリング８１から流体伝動装置１の径方向に離間して配置される複数の第２コイルスプリング（第２弾性体）８２と、第２コイルスプリング８２を介して中間部材８３と係合すると共にダンパハブ７に固定されるドリブン部材（出力要素）８４とを有する。ロックアップクラッチ機構９は、図示しない油圧制御ユニットからの油圧により動作するものであり、ダンパ機構８を介してフロントカバー３とダンパハブ７とを連結するロックアップを実行すると共に当該ロックアップを解除することができる。ただし、流体伝動装置１は、単板摩擦式のロックアップクラッチ機構９の代わりに、多板摩擦式のロックアップクラッチ機構を含むものであってもよい。 The damper mechanism 8 includes a drive member 80 as an input element fixed to the lockup piston of the lockup clutch mechanism 9, a plurality of first coil springs (first elastic bodies) 81, and a first coil spring 81. An intermediate member (intermediate element) 83 that engages with the drive member 80 and a rigidity (spring constant) that is higher than that of the first coil spring 81 and are spaced apart from the first coil spring 81 in the radial direction of the fluid transmission device 1. A plurality of second coil springs (second elastic bodies) 82, and a driven member (output element) 84 that engages with the intermediate member 83 via the second coil springs 82 and is fixed to the damper hub 7. The lock-up clutch mechanism 9 is operated by hydraulic pressure from a hydraulic control unit (not shown), executes lock-up for connecting the front cover 3 and the damper hub 7 via the damper mechanism 8 and releases the lock-up clutch mechanism 9. be able to. However, the fluid transmission device 1 may include a multi-plate friction type lock-up clutch mechanism instead of the single-plate friction type lock-up clutch mechanism 9.
上述の流体伝動装置１では、エンジンと変速装置との間の動力伝達効率を向上させてエンジンの燃費をより向上させるために、フロントカバー３に連結されるエンジンの回転数が例えば１０００ｒｐｍ程度と極低いロックアップ回転数Ｎｌｕｐに達した段階でロックアップが実行される。そして、実施例の流体伝動装置１では、ロックアップが実行された後にフロントカバー３とダンパハブ７との間で振動をより良好に減衰して当該振動が後段の変速装置のインプットシャフトへと伝達されるのを抑制するために、ダンパ機構８の中間部材８３に遠心振子式吸振装置２０が接続されている。 In the fluid transmission device 1 described above, in order to improve the power transmission efficiency between the engine and the transmission and to further improve the fuel efficiency of the engine, the rotational speed of the engine coupled to the front cover 3 is about 1000 rpm, for example. The lockup is executed when the low lockup rotation speed Nlup is reached. In the fluid transmission device 1 according to the embodiment, after the lockup is executed, the vibration is better damped between the front cover 3 and the damper hub 7 and the vibration is transmitted to the input shaft of the subsequent transmission. In order to suppress this, the centrifugal pendulum vibration absorber 20 is connected to the intermediate member 83 of the damper mechanism 8.
図２は、遠心振子式吸振装置２０の正面図であり、図３は、遠心振子式吸振装置２０を径方向からみた説明図であり、図４は、遠心振子式吸振装置２０の要部を示す斜視図である。これらの図面に示すように、遠心振子式吸振装置２０は、ダンパ機構８の回転要素である中間部材８３に対して同軸に固定される支持部材２１と、それぞれ支持部材２１に揺動自在に連結されると共に周方向に隣り合う複数（実施例ではそれぞれ２個）の第１質量体２２および第２質量体２３とを含む。 FIG. 2 is a front view of the centrifugal pendulum vibration absorber 20, FIG. 3 is an explanatory view of the centrifugal pendulum vibration absorber 20 viewed from the radial direction, and FIG. It is a perspective view shown. As shown in these drawings, the centrifugal pendulum vibration absorber 20 includes a support member 21 that is coaxially fixed to an intermediate member 83 that is a rotating element of the damper mechanism 8, and is swingably connected to the support member 21. And a plurality of (in the embodiment, two each) first mass bodies 22 and second mass bodies 23 that are adjacent to each other in the circumferential direction.
支持部材２１は、例えば金属板をプレス加工することにより略円環状に形成されており、中央部に例えばダンパハブ７が回転自在に嵌合される嵌合孔２１ａを有すると共に当該嵌合孔２１ａの周囲に形成された複数の連結孔２１ｂを有する。実施例の支持部材２１は、複数の連結孔２１ｂに挿通されるリベット等の締結部材を介してダンパ機構８の中間部材８３に固定され、それにより支持部材２１は、中間部材８３と同軸かつ一体に回転することができる。 The support member 21 is formed in a substantially annular shape by, for example, pressing a metal plate. The support member 21 has a fitting hole 21a in which, for example, the damper hub 7 is rotatably fitted in the center portion, and the fitting hole 21a has a fitting hole 21a. It has a plurality of connecting holes 21b formed around it. The support member 21 of the embodiment is fixed to the intermediate member 83 of the damper mechanism 8 via a fastening member such as a rivet inserted through the plurality of connecting holes 21b, whereby the support member 21 is coaxial and integral with the intermediate member 83. Can be rotated.
第１質量体２２と第２質量体２３とは、同一の重量を有しているが、互いに異なる構造を有する。そして、実施例では、図２に示すように、支持部材２１に対して１つおきに第１質量体２２が配設されると共に１体の第１質量体２２の両隣に第２質量体２３が配設される。すなわち、実施例では、第１質量体２２および第２質量体２３が等間隔（９０°おき）かつ交互に配置され、２体の第１質量体２２が支持部材２１の中心軸に関して対称に配置されると共に２体の第２質量体２３が支持部材２１の中心軸に関して対称に配置される。 The first mass body 22 and the second mass body 23 have the same weight, but have different structures. In the embodiment, as shown in FIG. 2, the first mass bodies 22 are disposed every other support member 21, and the second mass bodies 23 are adjacent to both the first mass bodies 22. Is disposed. That is, in the embodiment, the first mass bodies 22 and the second mass bodies 23 are alternately arranged at equal intervals (every 90 °), and the two first mass bodies 22 are arranged symmetrically with respect to the central axis of the support member 21. In addition, the two second mass bodies 23 are arranged symmetrically with respect to the central axis of the support member 21.
各第１質量体２２は、図２および図３に示すように、支持部材２１の軸方向からみて支持部材２１の外周に沿うように概ね円弧状に湾曲した２枚の同一の金属板（錘）２２１からなり、左右対称の構造を有する。各金属板２２１の両方の端部２２１ｅは、第１質量体２２が支持部材に取り付けられた際に支持部材２１の軸方向からみて先端に向かうにつれて外周面が内周面に近接するように先細に形成されている。そして、２枚の金属板２２１は、支持部材２１の軸方向に対向し合うと共に両者間に間隙が形成されるようにリベット等を介して互いに連結される。 As shown in FIGS. 2 and 3, each first mass body 22 includes two identical metal plates (weights) that are curved in a generally arc shape along the outer periphery of the support member 21 when viewed from the axial direction of the support member 21. ) 221 and has a symmetrical structure. Both end portions 221e of each metal plate 221 taper so that when the first mass body 22 is attached to the support member, the outer peripheral surface is closer to the inner peripheral surface as it goes to the tip when viewed from the axial direction of the support member 21. Is formed. The two metal plates 221 face each other in the axial direction of the support member 21 and are connected to each other via a rivet or the like so that a gap is formed between them.
２枚の金属板２２１の間には、予め定められた間隔を置いて延在する２本のアーム部材２４の一端部が差し込まれ、２本のアーム部材２４は、それぞれ支軸（ころ）２４ｓを介して２枚の金属板２２１に対して回転自在に連結される。更に、２本のアーム部材２４の他端は、当該２本のアーム部材２４が上記間隔をおいて互いに平行をなすように、それぞれ支軸（ころ）２５ｓを介して支持部材２１に回転自在に連結される。実施例では、支持部材２１に対して軸方向に間隔をおいてアーム支持プレート２５が固定され、２本のアーム部材２４の他端は、支持部材２１とアーム支持プレート２５との間に差し込まれると共に、支軸２５ｓを介して支持部材２１およびアーム支持プレート２５に回転自在に連結される。そして、支持部材２１には、２本のアーム部材２４の両側に位置するように複数のストッパ部２１ｃが形成されている。各ストッパ部２１ｃは、対応する１本のアーム部材２４と当接して当該アーム部材２４に連結された第１質量体２２の揺動範囲を規定する。これにより、各第１質量体２２は、ストッパ部２１ｃにより規定される揺動範囲内で支持部材２１に対して揺動可能となる。 One end of two arm members 24 extending at a predetermined interval is inserted between the two metal plates 221, and each of the two arm members 24 has a support shaft (roller) 24s. The two metal plates 221 are connected to each other in a rotatable manner. Further, the other ends of the two arm members 24 are rotatable to the support member 21 via respective support shafts (rollers) 25 s so that the two arm members 24 are parallel to each other with the gap therebetween. Connected. In the embodiment, the arm support plate 25 is fixed at an interval in the axial direction with respect to the support member 21, and the other ends of the two arm members 24 are inserted between the support member 21 and the arm support plate 25. At the same time, it is rotatably connected to the support member 21 and the arm support plate 25 via the support shaft 25s. The support member 21 is formed with a plurality of stopper portions 21 c so as to be positioned on both sides of the two arm members 24. Each stopper portion 21 c abuts with a corresponding one of the arm members 24 and defines a swing range of the first mass body 22 connected to the arm member 24. Thereby, each 1st mass body 22 becomes rockable with respect to the support member 21 within the rocking | fluctuation range prescribed | regulated by the stopper part 21c.
各第２質量体２３は、図２および図３に示すように、支持部材２１の軸方向からみて支持部材２１の外周に沿うように概ね円弧状に湾曲した２枚の同一の金属板（錘）２３１からなり、左右対称の構造を有する。各金属板２３１の両方の端部２３１ｅは、第２質量体２３が支持部材に取り付けられた際に支持部材２１の軸方向からみて先端に向かうにつれて内周面が外周面に近接するように先細に形成されている。そして、２枚の金属板２３１は、支持部材２１の軸方向に対向し合うと共に両者間に間隙が形成されるようにリベット等を介して互いに連結される。 As shown in FIGS. 2 and 3, each second mass body 23 includes two identical metal plates (weights) that are curved in a generally arc shape along the outer periphery of the support member 21 when viewed from the axial direction of the support member 21. ) 231 and has a symmetrical structure. Both end portions 231e of each metal plate 231 are tapered so that the inner peripheral surface is closer to the outer peripheral surface toward the tip when viewed from the axial direction of the support member 21 when the second mass body 23 is attached to the support member. Is formed. The two metal plates 231 face each other in the axial direction of the support member 21 and are connected to each other via a rivet or the like so that a gap is formed between them.
２枚の金属板２３１の間には、予め定められた間隔を置いて延在する２本のアーム部材２４の一端部が差し込まれ、２本のアーム部材２４は、それぞれ支軸（ころ）２４ｓを介して２枚の金属板２３１に対して回転自在に連結される。更に、２本のアーム部材２４の他端は、当該２本のアーム部材２４が上記間隔をおいて互いに平行をなすように、それぞれ支軸（ころ）２５ｓを介して支持部材２１およびアーム支持プレート２５に回転自在に連結される。そして、支持部材２１には、２本のアーム部材２４の両側に位置するように複数のストッパ部２１ｃが形成されている。各ストッパ部２１ｃは、対応する１本のアーム部材２４と当接して当該アーム部材２４に連結された第２質量体２３の揺動範囲を規定する。これにより、各第２質量体２３は、ストッパ部２１ｃにより規定される揺動範囲内で支持部材２１に対して揺動可能となる。 One end of two arm members 24 extending at a predetermined interval is inserted between the two metal plates 231, and each of the two arm members 24 has a support shaft (roller) 24s. The two metal plates 231 are rotatably connected to each other via the. Further, the other ends of the two arm members 24 are respectively connected to the support member 21 and the arm support plate via support shafts (rollers) 25 s so that the two arm members 24 are parallel to each other with the gap therebetween. 25 is rotatably connected. The support member 21 is formed with a plurality of stopper portions 21 c so as to be positioned on both sides of the two arm members 24. Each stopper portion 21 c abuts with a corresponding one arm member 24 and defines a swing range of the second mass body 23 connected to the arm member 24. Thereby, each 2nd mass body 23 becomes rockable with respect to the support member 21 within the rocking | fluctuation range prescribed | regulated by the stopper part 21c.
そして、実施例において、上記金属板２２１および２３１の寸法は、第１質量体２２および第２質量体２３が中立状態（図２に示すように２本のアーム部材２４の中心線が支持部材２１の中心を通る状態）にあるときに互いに隣り合う第１質量体２２と第２質量体２３との間にクリアランスが形成されると共に第１質量体２２および第２質量体２３のそれぞれが揺動範囲内で同方向に揺動するときに互いに隣り合う端部同士が支持部材２１の径方向からみて重ならないように定められる。更に、実施例の金属板２２１および２３１の寸法は、第１質量体２２および第２質量体２３が揺動範囲内で互いに接近するように支持部材２１に対して移動したときにのみ、第１質量体２２の第２質量体２３側の端部と第２質量体２３の第１質量体２２側の端部とが支持部材２１の径方向からみて重なることができるように定められる。なお、実施例では、第１質量体２２の第２質量体２３側の端部と第２質量体２３の第１質量体２２側の端部とが支持部材２１の径方向からみて重なったときに両者が当接しないように、第２質量体２３の両方の端部に内周側を外周側に向けて窪ませることにより凹部２３ｃが形成されている。ただし、これに代えて、あるいはこれと共に、第１質量体２２の両方の端部に外周側を内周側に向けて窪ませることにより凹部を形成してもよい。 In the embodiment, the dimensions of the metal plates 221 and 231 are such that the first mass body 22 and the second mass body 23 are in a neutral state (the center line of the two arm members 24 is the support member 21 as shown in FIG. 2). In this state, a clearance is formed between the first mass body 22 and the second mass body 23 that are adjacent to each other and the first mass body 22 and the second mass body 23 are swung. The end portions adjacent to each other are determined so as not to overlap each other when viewed in the radial direction of the support member 21 when swinging in the same direction within the range. Further, the dimensions of the metal plates 221 and 231 of the embodiment are the first only when the first mass body 22 and the second mass body 23 move relative to the support member 21 so as to approach each other within the swing range. The end of the mass body 22 on the second mass body 23 side and the end of the second mass body 23 on the first mass body 22 side are determined so as to overlap each other when viewed from the radial direction of the support member 21. In the embodiment, when the end portion of the first mass body 22 on the second mass body 23 side and the end portion of the second mass body 23 on the first mass body 22 side overlap with each other when viewed from the radial direction of the support member 21. A recess 23c is formed by denting the inner peripheral side toward the outer peripheral side at both ends of the second mass body 23 so that they do not contact each other. However, instead of or together with this, a concave portion may be formed by denting the outer peripheral side toward the inner peripheral side at both ends of the first mass body 22.
次に、上述のように構成された遠心振子式吸振装置２０の動作について説明する。 Next, the operation of the centrifugal pendulum vibration absorber 20 configured as described above will be described.
流体伝動装置１のロックアップクラッチ機構９によりロックアップが実行されると、図１からわかるように、原動機としてのエンジンからの動力が、フロントカバー３、ロックアップクラッチ機構９、ドライブ部材８０、第１コイルスプリング８１、中間部材８３、第２コイルスプリング８２、ドリブン部材８４、ダンパハブ７という経路を介して変速装置のインプットシャフトへと伝達される。この際、フロントカバー３に入力されるトルクの変動は、主にダンパ機構８の第１および第２コイルスプリング８１，８２により吸収される。更に、実施例の流体伝動装置１では、ロックアップに伴ってロックアップピストンによりフロントカバー３に連結されたダンパ機構８がフロントカバー３と共に回転すると、ダンパ機構８の中間部材８３に連結された支持部材２１も中間部材８３と共に流体伝動装置１の軸周りに回転し、支持部材２１の回転に伴って遠心振子式吸振装置２０を構成する第１質量体２２および第２質量体２３が支持部材２１に対して同方向に揺動することになる。これにより、遠心振子式吸振装置２０から中間部材８３に対して当該中間部材８３の振動（共振）とは逆方向の位相を有する振動を付与し、それによりフロントカバー３とダンパハブ７との間で遠心振子式吸振装置２０によっても振動を吸収（減衰）することが可能となる。 When lockup is executed by the lockup clutch mechanism 9 of the fluid transmission device 1, as can be seen from FIG. 1, the power from the engine as the prime mover is applied to the front cover 3, the lockup clutch mechanism 9, the drive member 80, It is transmitted to the input shaft of the transmission via a path of 1 coil spring 81, intermediate member 83, second coil spring 82, driven member 84, and damper hub 7. At this time, fluctuations in torque input to the front cover 3 are mainly absorbed by the first and second coil springs 81 and 82 of the damper mechanism 8. Further, in the fluid transmission device 1 of the embodiment, when the damper mechanism 8 connected to the front cover 3 by the lock-up piston rotates together with the front cover 3 along with the lock-up, the support connected to the intermediate member 83 of the damper mechanism 8 is supported. The member 21 also rotates around the axis of the fluid transmission device 1 together with the intermediate member 83, and the first mass body 22 and the second mass body 23 that constitute the centrifugal pendulum vibration absorber 20 with the rotation of the support member 21 are the support member 21. Will swing in the same direction. As a result, vibration having a phase opposite to that of the vibration (resonance) of the intermediate member 83 is applied from the centrifugal pendulum vibration absorber 20 to the intermediate member 83, thereby causing the front cover 3 and the damper hub 7 to move. The centrifugal pendulum vibration absorber 20 can also absorb (attenuate) vibration.
ただし、上述のように構成される遠心振子式吸振装置２０では、第１質量体２２および第２質量体２３のそれぞれが支持部材２１に対して独立に揺動可能であることから、例えばエンジン（支持部材２１）の回転数が比較的低いときには第１質量体２２および第２質量体２３の挙動が不安定になりがちであり、互いに隣り合う第１質量体２２と第２質量体２３とが逆方向に移動して互いに接近するおそれがある。そして、このように互いに隣り合う第１質量体２２と第２質量体２３とが互いに接近した場合、何ら対策を施さなければ、互いに隣り合う第１質量体２２と第２質量体２３との端部同士が衝突し、異音の発生を招くおそれがある。これに対して、実施例の遠心振子式吸振装置２０は、第１質量体２２と第２質量体２３とが互い接近するように移動したとしても、図５に示すように、第１質量体２２の第２質量体２３側の端部が当該第２質量体２３の第１質量体２２側の端部の径方向内側すなわち凹部２３ｃへと入り込んで第１質量体２２の第２質量体２３側の端部と当該第２質量体２３の第１質量体２２側の端部とが径方向からみて重なることができるように構成されている。従って、互いに隣り合う第１質量体２２と第２質量体２３との端部同士が衝突してしまうことはなく、異音の発生を良好に抑制することができる。 However, in the centrifugal pendulum type vibration absorber 20 configured as described above, since each of the first mass body 22 and the second mass body 23 can swing independently with respect to the support member 21, for example, an engine ( When the rotational speed of the support member 21) is relatively low, the behavior of the first mass body 22 and the second mass body 23 tends to be unstable, and the first mass body 22 and the second mass body 23 that are adjacent to each other are likely to be unstable. There is a risk of moving in the opposite direction and approaching each other. And when the 1st mass body 22 and the 2nd mass body 23 which adjoin each other in this way approach each other, if no measures are taken, the end of the 1st mass body 22 and the 2nd mass body 23 which adjoin each other The parts may collide with each other, which may cause abnormal noise. On the other hand, the centrifugal pendulum type vibration absorber 20 of the embodiment has the first mass body as shown in FIG. 5 even if the first mass body 22 and the second mass body 23 move so as to approach each other. The second mass body 23 of the first mass body 22 enters the radially inner side of the end portion of the second mass body 23 on the first mass body 22 side, that is, the recess 23c. The end portion on the side and the end portion of the second mass body 23 on the first mass body 22 side can be overlapped when viewed from the radial direction. Therefore, the ends of the first mass body 22 and the second mass body 23 that are adjacent to each other do not collide with each other, and the generation of abnormal noise can be satisfactorily suppressed.
以上説明したように、実施例の遠心振子式吸振装置２０の互いに隣り合う第１質量体２２および第２質量体２３は、両者が互いに接近するように支持部材２１に対して移動したときに、第１質量体２２の第２質量体２３側の端部と第２質量体２３の第１質量体２２側の端部とが支持部材２１（回転要素としての中間部材８３）の径方向からみて重なることができるように構成されている。これにより、第１質量体２２および第２質量体２３の重量を確保するために両者を特に周方向に大型化したとしても、第１質量体２２および第２質量体２３の挙動が不安定になって互いに隣り合う第１質量体２２と第２質量体２３とが互いに接近したときに両者が衝突するのを抑制することができる。従って、実施例の遠心振子式吸振装置２０では、互いに隣り合う第１質量体２２と第２質量体２３との衝突や当該衝突に起因した異音の発生を抑制しつつ第１質量体２２および第２質量体２３の重量を確保することが可能となる。ただし、第１質量体２２と第２質量体２３とは、両者が互いに接近するように支持部材２１に対して移動したときに、一方の端部と他方の端部以外の部分とが径方向からみて重なるように構成されてもよく、両者の端部以外の部分同士が径方向からみて重なるように構成されてもよい。 As described above, when the first mass body 22 and the second mass body 23 adjacent to each other of the centrifugal pendulum vibration absorber 20 of the embodiment move with respect to the support member 21 so that both approach each other, The end of the first mass body 22 on the second mass body 23 side and the end of the second mass body 23 on the first mass body 22 side are viewed from the radial direction of the support member 21 (intermediate member 83 as a rotating element). It is comprised so that it can overlap. Thereby, even if both are enlarged especially in the circumferential direction in order to ensure the weight of the 1st mass body 22 and the 2nd mass body 23, the behavior of the 1st mass body 22 and the 2nd mass body 23 becomes unstable. Thus, when the first mass body 22 and the second mass body 23 adjacent to each other approach each other, it is possible to suppress the collision between the two. Therefore, in the centrifugal pendulum vibration absorber 20 of the embodiment, the first mass body 22 and the first mass body 22 and the second mass body 23 are prevented from colliding with each other and the generation of abnormal noise due to the collision. The weight of the second mass body 23 can be ensured. However, when the first mass body 22 and the second mass body 23 move relative to the support member 21 so that they are close to each other, one end portion and a portion other than the other end portion are in the radial direction. It may be configured to overlap when viewed from the side, or may be configured such that portions other than the end portions of both overlap when viewed from the radial direction.
また、上記実施例のように、遠心振子式吸振装置がフロントカバー等を介してエンジンに連結される場合、当該エンジンが省気筒化されるほど第１質量体２２および第２質量体２３の振れ角（揺動範囲）を大きくする必要があり、第１質量体２２と第２質量体２３同士の衝突が生じやすくなってしまうが、上記実施例の遠心振子式吸振装置２０によれば、第１質量体２２および第２質量体２３の振れ角（揺動範囲）を大きくなったとしても、第１質量体２２と第２質量体２３同士の衝突を良好に抑制することができる。従って、実施例の遠心振子式吸振装置２０は、省気筒エンジンと変速装置との間で振動を減衰するのに極めて好適である。 Further, when the centrifugal pendulum type vibration absorber is connected to the engine via a front cover or the like as in the above embodiment, the vibration of the first mass body 22 and the second mass body 23 is reduced as the engine is reduced in cylinders. It is necessary to increase the angle (oscillation range), and collision between the first mass body 22 and the second mass body 23 is likely to occur. According to the centrifugal pendulum vibration absorber 20 of the above embodiment, Even if the deflection angle (swing range) of the 1 mass body 22 and the 2nd mass body 23 becomes large, the collision with the 1st mass body 22 and the 2nd mass body 23 can be suppressed favorably. Therefore, the centrifugal pendulum vibration absorber 20 of the embodiment is extremely suitable for attenuating vibration between the cylinder-saving engine and the transmission.
更に、遠心振子式吸振装置２０の支持部材２１をエンジンに連結されるフロントカバー３と変速装置のインプットシャフトに接続されるダンパハブ７との間に配置されるダンパ機構８の回転要素である中間部材８３に接続すれば、フロントカバー３とダンパハブ７との間で遠心振子式吸振装置２０により振動を減衰して当該振動が変速装置へと伝達されるのを良好に抑制することが可能となる。ただし、遠心振子式吸振装置２０の支持部材２１は、ダンパ機構８の回転要素であるドライブ部材（入力部材）８０に接続されてもよく、ダンパ機構８の回転要素であるドリブン部材（出力部材）８４に接続されてもよい。 Further, the intermediate member which is a rotating element of the damper mechanism 8 disposed between the front cover 3 connected to the engine of the support member 21 of the centrifugal pendulum vibration absorber 20 and the damper hub 7 connected to the input shaft of the transmission. If it connects to 83, it will become possible to suppress satisfactorily that a vibration is attenuate | damped by the centrifugal pendulum type vibration absorption apparatus 20 between the front cover 3 and the damper hub 7, and the said vibration is transmitted to a transmission. However, the support member 21 of the centrifugal pendulum vibration absorber 20 may be connected to a drive member (input member) 80 that is a rotating element of the damper mechanism 8, and a driven member (output member) that is a rotating element of the damper mechanism 8. 84 may be connected.
また、上記実施例では、第１質量体２２の第２質量体２３側の端部が支持部材２１の軸方向からみて先端に向かうにつれて外周面が内周面に近接するように先細に形成されており、第２質量体２３の第１質量体２２側の端部は、支持部材２１の軸方向からみて先端に向かうにつれて内周面が外周面に近接するように先細に形成されている。これにより、第１質量体２２と第２質量体２３とが互いに接近するように支持部材２１に対して移動したときに、第１質量体２２の第２質量体２３側の端部と第２質量体２３の第１質量体２２側の端部とを径方向からみて重ならせることができる。 Further, in the above embodiment, the end of the first mass 22 on the second mass 23 side is tapered so that the outer peripheral surface is closer to the inner peripheral surface as it goes from the axial direction of the support member 21 toward the tip. The end portion of the second mass body 23 on the first mass body 22 side is tapered so that the inner peripheral surface is closer to the outer peripheral surface as it goes from the axial direction of the support member 21 toward the tip. Accordingly, when the first mass body 22 and the second mass body 23 move relative to the support member 21 so as to approach each other, the end portion of the first mass body 22 on the second mass body 23 side and the second mass body 22 side. The end of the mass body 23 on the first mass body 22 side can be overlapped when viewed from the radial direction.
また、上記実施例では、複数の第１質量体２２および第２質量体２３のすべてが同一の重量を有すると共に、第１質量体２２と第２質量体２３とが互いに異なる構造を有しており、支持部材２１に対して１つおきに第１質量体２２が配設されると共に１体の第１質量体２２の両隣に第２質量体２３が配設される。これにより、第１質量体２２および第２質量体２３のそれぞれを左右対称の構造を有するバランスのよいものとして遠心振子式吸振装置２０の吸振性能を向上させることが可能となる。 In the above embodiment, all of the plurality of first mass bodies 22 and second mass bodies 23 have the same weight, and the first mass body 22 and the second mass body 23 have different structures. The first mass bodies 22 are disposed every other support member 21 and the second mass bodies 23 are disposed on both sides of the first mass body 22. Accordingly, it is possible to improve the vibration absorption performance of the centrifugal pendulum type vibration absorber 20 by setting each of the first mass body 22 and the second mass body 23 to have a balanced structure having a bilaterally symmetric structure.
図６は、変形例に係る遠心振子式吸振装置２０Ｂの正面図である。以下、上記遠心振子式吸振装置２０に関連して説明したものと同一の要素には同一の参照符号を付し、重複する説明を省略する。図６の遠心振子式吸振装置２０Ｂにおいて、第１質量体２２Ｂを構成する金属板２２１および第２質量体２３Ｂを構成する金属板２３１の寸法は、第１質量体２２Ｂおよび第２質量体２３Ｂが中立状態にあるときに互いに隣り合う第１質量体２２Ｂおよび第２質量体２３Ｂの端部同士が支持部材２１の径方向からみて重なるように定められている。更に、遠心振子式吸振装置２０Ｂにおいて、金属板２２１および２３１の寸法は、第１質量体２２Ｂおよび第２質量体２３Ｂのそれぞれが支持部材２１に対して揺動範囲内でどのように移動したとしても、互いに隣り合う第１質量体２２Ｂおよび第２質量体２３Ｂの端部同士が互いに接触することなく常に支持部材２１の径方向からみて重なるように定められている。これにより、第１質量体２２Ｂと第２質量体２３Ｂとをそれぞれ周方向に更に拡大して第１質量体２２Ｂおよび第２質量体２３の重量Ｂをより増加させることが可能となる。 FIG. 6 is a front view of a centrifugal pendulum vibration absorber 20B according to a modification. Hereinafter, the same elements as those described in relation to the centrifugal pendulum vibration absorber 20 are denoted by the same reference numerals, and redundant description is omitted. In the centrifugal pendulum vibration absorber 20B of FIG. 6, the dimensions of the metal plate 221 constituting the first mass body 22B and the metal plate 231 constituting the second mass body 23B are the same as those of the first mass body 22B and the second mass body 23B. The ends of the first mass body 22 </ b> B and the second mass body 23 </ b> B that are adjacent to each other when in the neutral state are determined to overlap each other when viewed from the radial direction of the support member 21. Further, in the centrifugal pendulum vibration absorber 20B, the dimensions of the metal plates 221 and 231 are as follows: how each of the first mass body 22B and the second mass body 23B moves within the swing range with respect to the support member 21. Also, the end portions of the first mass body 22B and the second mass body 23B adjacent to each other are determined so as to always overlap each other as viewed from the radial direction of the support member 21 without contacting each other. Accordingly, the first mass body 22B and the second mass body 23B can be further enlarged in the circumferential direction, respectively, and the weight B of the first mass body 22B and the second mass body 23 can be further increased.
図７は、他の変形例に係る遠心振子式吸振装置２０Ｃの正面図である。同図に示す遠心振子式吸振装置２０Ｃは、同一の構造および重量を有する複数の質量体２７を含むものである。各質量体２７は、支持部材２１の外周に沿うように概ね円弧状に湾曲した２枚の同一の金属板（錘）２７１からなる。各金属板２７１の一方の端部２７１ａは、質量体２７が支持部材に取り付けられた際に支持部材２１の軸方向からみて先端に向かうにつれて外周面が内周面に近接するように先細に形成されている。また、各金属板２７１の他方の端部２７１ｂは、質量体２７が支持部材に取り付けられた際に支持部材２１の軸方向からみて先端に向かうにつれて内周面が外周面に近接するように先細に形成されている。そして、２枚の金属板２２１は、支持部材２１の軸方向に対向し合うと共に両者間に間隙が形成されるようにリベット等を介して互いに連結される。なお、実施例では、互いに隣り合う質量体２７同士の端部が当接しないように、質量体２７の一方（端部２７１ｂ側）の端部に内周側を外周側に向けて窪ませることにより凹部２７ｃが形成されている。質量体２７の他方（端部２７１ａ側）の端部に外周側を内周側に向けて窪ませることにより凹部を形成してもよい。このように、複数の質量体２７のすべてを同一の構造および重量を有するものとすれば、遠心振子式吸振装置２０Ｃにおける部品の種類を減らして当該遠心振子式吸振装置２０Ｃを低コスト化することが可能となる。 FIG. 7 is a front view of a centrifugal pendulum vibration absorber 20C according to another modification. A centrifugal pendulum type vibration absorber 20C shown in the figure includes a plurality of mass bodies 27 having the same structure and weight. Each mass body 27 includes two identical metal plates (weights) 271 that are curved in a generally arc shape along the outer periphery of the support member 21. One end portion 271a of each metal plate 271 is tapered so that the outer peripheral surface is closer to the inner peripheral surface toward the tip when viewed from the axial direction of the support member 21 when the mass body 27 is attached to the support member. Has been. Further, the other end portion 271b of each metal plate 271 is tapered so that the inner peripheral surface is closer to the outer peripheral surface toward the tip when viewed from the axial direction of the support member 21 when the mass body 27 is attached to the support member. Is formed. The two metal plates 221 face each other in the axial direction of the support member 21 and are connected to each other via a rivet or the like so that a gap is formed between them. In the embodiment, the inner peripheral side is recessed toward the outer peripheral side at one end (end portion 271b side) of the mass body 27 so that the end portions of the mass bodies 27 adjacent to each other do not contact each other. Thus, a recess 27c is formed. You may form a recessed part in the edge part of the other side (end part 271a side) of the mass body 27 by denting an outer peripheral side toward an inner peripheral side. Thus, if all the mass bodies 27 have the same structure and weight, the types of parts in the centrifugal pendulum vibration absorber 20C can be reduced, and the cost of the centrifugal pendulum vibration absorber 20C can be reduced. Is possible.
以上、実施例を用いて本発明の実施の形態について説明したが、本発明は上記実施例に何ら限定されるものではなく、本発明の要旨を逸脱しない範囲内において、様々な変更をなし得ることはいうまでもない。 The embodiments of the present invention have been described above using the embodiments. However, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the present invention. Needless to say.
本発明は、遠心振子式吸振装置の製造産業に利用可能である。 The present invention can be used in the manufacturing industry of centrifugal pendulum vibration absorbers.
１ 流体伝動装置、３ フロントカバー、４ ポンプインペラ、５ タービンランナ、６ ステータ、７ ダンパハブ、８ ダンパ機構、９ ロックアップクラッチ機構、２０，２０Ｂ，２０Ｃ 遠心振子式吸振装置、２１ 支持部材、２１ａ 嵌合孔、２１ｂ 連結孔、２１ｃ ストッパ部、２２，２２Ｂ 第１質量体、２３，２３Ｂ 第２質量体、２３ｃ，２７ｃ 凹部、２４ アーム部材、２４ｓ，２５ｓ 支軸、２５ アーム支持プレート、２７ 質量体、６１ ワンウェイクラッチ、８０ ドライブ部材、８１ 第１コイルスプリング、８２ 第２コイルスプリング、８３ 中間部材、８４ ドリブン部材、２２１，２３１，２７１ 金属板、２２１ｅ，２３１ｅ，２７１ａ，２７１ｂ 端部。 DESCRIPTION OF SYMBOLS 1 Fluid transmission device, 3 Front cover, 4 Pump impeller, 5 Turbine runner, 6 Stator, 7 Damper hub, 8 Damper mechanism, 9 Lock-up clutch mechanism, 20, 20B, 20C Centrifugal pendulum type vibration absorber, 21 Support member, 21a fitting Joint hole, 21b Connection hole, 21c Stopper part, 22, 22B 1st mass body, 23, 23B 2nd mass body, 23c, 27c Recessed part, 24 Arm member, 24s, 25s Support shaft, 25 Arm support plate, 27 Mass body 61 One-way clutch, 80 Drive member, 81 First coil spring, 82 Second coil spring, 83 Intermediate member, 84 Driven member, 221, 231, 271 Metal plate, 221e, 231e, 271a, 271b End portion.
Claims (6)
前記複数の質量体は、互いに隣り合う２つの質量体の一方である第１質量体と他方である第２質量体とが互いに接近するように前記支持部材に対して移動したときに、前記第１質量体と前記第２質量体とが径方向からみて重なるように構成されることを特徴とする遠心振子式吸振装置。 In a centrifugal pendulum type vibration absorber provided with a support member that is coaxially attached to a rotating element, and a plurality of mass bodies that are swingably connected to the support member and are adjacent to each other in the circumferential direction,
When the plurality of mass bodies move relative to the support member such that a first mass body that is one of two mass bodies adjacent to each other and a second mass body that is the other are close to each other, A centrifugal pendulum type vibration absorber, wherein the first mass body and the second mass body are configured to overlap each other when viewed from the radial direction.
前記第１質量体の前記第２質量体側の端部は、前記支持部材の軸方向からみて先端に向かうにつれて外周面が内周面に近接するように先細に形成されており、前記第２質量体の前記第１質量体側の端部は、前記軸方向からみて先端に向かうにつれて内周面が外周面に近接するように先細に形成されていることを特徴とする遠心振子式吸振装置。 The centrifugal pendulum type vibration absorber according to claim 1,
The end portion of the first mass body on the second mass body side is formed to be tapered so that the outer peripheral surface is closer to the inner peripheral surface as it goes to the tip when viewed from the axial direction of the support member, and the second mass The centrifugal pendulum type vibration absorber is characterized in that the end of the body on the first mass body side is tapered so that the inner peripheral surface is closer to the outer peripheral surface as it goes toward the tip when viewed from the axial direction.
前記複数の質量体のすべてが同一の重量を有すると共に、前記第１質量体と前記第２質量体とが互いに異なる構造を有することを特徴とする遠心振子式吸振装置。 The centrifugal pendulum vibration absorber according to claim 1 or 2,
The centrifugal pendulum type vibration absorber according to claim 1, wherein all of the plurality of mass bodies have the same weight, and the first mass body and the second mass body have different structures.
前記複数の質量体のすべてが同一の構造および重量を有することを特徴とする遠心振子式吸振装置。 The centrifugal pendulum vibration absorber according to claim 1 or 2,
The centrifugal pendulum type vibration absorber is characterized in that all of the plurality of mass bodies have the same structure and weight.
前記第１質量体の前記第２質量体側の端部と前記第２質量体の前記第１質量体側の端部とは、常に前記径方向からみて重なっていることを特徴とする遠心振子式吸振装置。 In the centrifugal pendulum type vibration absorber according to any one of claims 1 to 4,
The end of the first mass body on the second mass body side and the end of the second mass body on the first mass body side always overlap each other when viewed from the radial direction. apparatus.
前記支持部材は、原動機に連結される入力部材と変速装置の入力軸との間に配置されるダンパ機構の回転要素の何れかに接続されることを特徴とする遠心振子式吸振装置。 In the centrifugal pendulum type vibration absorber according to any one of claims 1 to 5,
The centrifugal pendulum type vibration absorber according to claim 1, wherein the support member is connected to any one of rotating elements of a damper mechanism disposed between an input member coupled to the prime mover and an input shaft of the transmission.
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| CN115551938A (en) * | 2020-05-19 | 2022-12-30 | 住友精化株式会社 | Latex composition |
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