JPS6155432A - Flywheel for internal-combustion engine - Google Patents

Flywheel for internal-combustion engine

Info

Publication number
JPS6155432A
JPS6155432A JP17598584A JP17598584A JPS6155432A JP S6155432 A JPS6155432 A JP S6155432A JP 17598584 A JP17598584 A JP 17598584A JP 17598584 A JP17598584 A JP 17598584A JP S6155432 A JPS6155432 A JP S6155432A
Authority
JP
Japan
Prior art keywords
flywheel
crank
shaft
crankshaft
crank shaft
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
Application number
JP17598584A
Other languages
Japanese (ja)
Inventor
Sumio Kiriki
桐木 純夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Subaru Corp
Original Assignee
Fuji Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Heavy Industries Ltd filed Critical Fuji Heavy Industries Ltd
Priority to JP17598584A priority Critical patent/JPS6155432A/en
Publication of JPS6155432A publication Critical patent/JPS6155432A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00Shafts; Axles; Cranks; Eccentrics
    • F16C3/04Crankshafts, eccentric-shafts; Cranks, eccentrics
    • F16C3/06Crankshafts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/30Flywheels
    • F16F15/315Flywheels characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft
    • F16F15/3153Securing inertia members to the shafts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

PURPOSE:To reduce bending stress of crank shaft due to the flywheel by securing the wheel boss section to the end section of crank shaft then supporting the flywheel against said boss section while rollably around an axis crossing perpendicularly with the axis of crank shaft. CONSTITUTION:The crank shaft 1 is supported by the bearing 6 of crank case 5 and rotated by means of a crank pin 12 and crank arm 13. The center side wheel boss section 3 of splitted and fitted flywheel is secured to the output side shaft end section 2 of said crank shaft 1. Then a joint shaft 32 is secured to said boss section 3 in the direction perpendicular with the axis of crank shaft 1 to project the opposite end sections 32a to the position facing each other on the circumferential face of boss section 3. While main body 4 of flywheel is jointed to hold said opposite end sections 32a by means of the splitted annular chips 41. Consequently, the main body 4 is supported rollably around the joint shaft 32.

Description

【発明の詳細な説明】[Detailed description of the invention]

【産業上の利用分野1 本発明は、内燃1幾関のフライホイールに関するしので
あり、ざらに詳しくは、フライホイールの取(J’ t
j、! 1f4に1111するbのである。 (従来技術l 内ff1fH[ツクランク11IH,L、 ヒスl−ン
ニに ル変動トルクを吸収1するために、クランク軸の
出力側に大きな悄↑!1に−メントを右するフライホイ
ールを取イ・h)でいる1、この取付機構は、従来、一
般的には第3図に示りよう4「機構であり、フライホイ
ールaはクランク軸11にボルトCを介して固着されて
いる。このような取付は構成の場合、クランク軸1)の
クランクピンdには、ピストンの41復運動・から矢印
V方向に大きな力が加わり、これにクランク軸11の回
転力による捩り1〜ルクが合成さJ’+1クランクビン
(1の接合部eに過大な応力が生じる際、:[ンジンの
回転数が高回転にイタると、フライホイールaは、大地
系に対1)C固定され/jようイ【状態、すなわらジャ
イ1]効宋を右1するJ:うイT状態となることから、
上述のピストンによる矢印V 7’j向の力に抗する力
が生じ、その接合部0に更に大きな力が加わることで、
過大な曲げ応力や疲労破壊が生じてクランク軸11が破
損することにより、必然的にクランク軸を大きくしなけ
ればならないという問題点があった。 また従来、他に#J4図に示1ような装置、即ちクラン
ク軸すに固定されるフライホイールを内外に分割嵌合さ
せた形fd)とし、そのクランク軸1)に固定されたボ
ス部gに、クラッチへ係脱可能に係合されるフライホイ
ールaを、弾+l[体からなるダンバ部材11を介1ノ
で連結した装置も、例えば実開昭55−151940t
lq公報として知られている。この装置δjは、クラン
ク軸IIの回転変動の低減には効果があるものの、フラ
イホイールaは矢印X−X方向には揺動し4Tいのぐ、
上)」(のジャイ[1効采の低減に対づるダ1果は少な
く前j41の接合部0 (クランク軸の回転にJ、り捩
り1ヘルクが発生する部41′7>に過大な応力が集中
Jることを防げ得ないからクランク軸の破損防1に効果
が151らねず、また弾14体からイするダンパ部+4
11の64久性にし問題点があった。 −【ブを明の1
]的】 本発明は、l:、 1tliの従来技術の問題点を改善
すべく提某され!、=6ので、筒中イ
[Industrial Application Field 1] The present invention relates to flywheels for internal combustion.
j,! It is 1111 to 1f4. (Conventional technology) In order to absorb the fluctuating torque, a flywheel that has a large tremor on the output side of the crankshaft is installed. h) 1. This mounting mechanism has conventionally been generally a 4" mechanism as shown in FIG. In this case, a large force is applied to the crank pin d of the crankshaft 1) in the direction of the arrow V from the piston's 41 backward movement, and this is combined with the torsion 1 to 1 torque due to the rotational force of the crankshaft 11. When excessive stress is generated at the joint e of J'+1 crankbin (1), the flywheel a becomes fixed to the ground system as shown in Figure 1. I [state, that is Jai 1] effect Song is right 1 J: Since it becomes Ui T state,
A force that resists the force in the direction of arrow V7'j by the piston described above is generated, and an even larger force is applied to the joint 0, so that
When the crankshaft 11 is damaged due to excessive bending stress or fatigue failure, there is a problem in that the crankshaft must be made larger. In addition, conventionally, there has been a device like 1 shown in Figure #J4, that is, a type fd) in which a flywheel fixed to the crankshaft is fitted inside and outside separately, and a boss part g fixed to the crankshaft 1) is used. In addition, a device in which a flywheel a, which is removably engaged with a clutch, is connected via a damper member 11 consisting of a bullet +l body is also proposed, for example, as disclosed in U.S. Pat.
It is known as the lq publication. Although this device δj is effective in reducing rotational fluctuations of the crankshaft II, the flywheel a swings in the direction of the arrow
(above)" (Jai [1 effect of 1 effect on the reduction of the 1 effect is small) The front j41 joint 0 (J, torsion 1 herk occurs in the rotation of the crankshaft 41'7) Excessive stress Since it cannot prevent the concentration of bullets from being concentrated, the effect on preventing damage to the crankshaft is not 151, and the damper part that can be attacked by 14 bullets is +4.
There was a problem with the 64-year durability of 11. - [Buwo Akira no 1
] The present invention has been proposed to improve the problems of the prior art of l:, 1tli! , = 6, so I

【構成でもってフ
ライホイールによるクランク軸の曲げ応力を低減させ得
る内燃機関のフライホイールを提供することを[1的ど
りるものである。 【発明の構成1 .13i1iの目的を辻成りるため、本発明によるフラ
イホイールは、内外に分割1釈合されIζフライホイー
ルのホイールボス部をクランク軸の端部に固猶し、該ホ
イールボス部に対1)、イの外側に嵌’Aされるフライ
ホイール主体を、クランク軸線と直交する軸を中心とし
て揺動自在に嵌合支持1ノで4にることを特徴と覆るも
のである。 【実 施 例】 以下、本発明の実施例を図面にJAづいτ具体的に説明
する。 第1図および第2図は本発明によるフライホイールを装
備したクランク軸の端部を示J゛もので、クランク軸1
の出力側の軸端部2に、内外に分割ll1l!合された
フライホイールの、中心側のホイールボス部3が固着さ
れ、このホイールボス部3の外周に、環状のフライホイ
ール主体4が、クランク軸1の軸線と直交りる軸を中心
としで揺動可能に取付けられている。 ここで上記したクランク101と、これに取付けるホイ
ールボス部3およびフライホイール」一体4どの関係に
ついて説明すると、クランク軸1は通常のごとくピスト
ン・コンロッドの大端部を支持部−るクランクビン12
とクランクアーム13とによって回fjl シ、クラン
クケース5のベアリング6によって回動自在に支持され
ているもので、クランク軸1の出力側の1llll端部
2に、ボルト31によってフライホイールのホイールボ
ス部3が固着されている。 ト記ホイールボス部3には、クランク軸1の軸心と直交
する方向に圧入固着されたジヨイントシャツ[・32を
右1)、このジヨイントシャフト32の両端部32a 
、 32bは、ホイールボス部3の周面においてUいに
対向覆る位賀に、所定長さ突出されている。 一力、フライホイール主体4は、上記ホイールボス部3
に嵌合される中心円孔の周辺部が、中方向において2つ
合せ型に構成され、その分割環状片41の合せ部におい
て、当該分割環状片41が前記ホイールボス部3の周面
より突出づるジヨイントシャフト・320両端部32a
 、 32bを挟持するように接合されていて、これに
よってフライホイール主体4が前記ジヨイントシャフト
32を軸芯として揺動可能に支持されている。なお上記
ジョイントシャフト両端部32a 、 3211の支持
部には、Aイル含浸の焼結合金等からなるすべり軸受4
2.43が嵌込み固着されており、また分割環状片41
はポル1へ45によって接合固着され、さらにフライホ
イール主体4を紹介てる際には、シャフト両端部32a
 、 32bと軸受42.43との間に、ホイールボス
部3の周面とこれに嵌合づるフライホイール1休4の中
心円孔とが直接接触しないように合成樹脂等のスペーサ
34.35が介在されている。また、クランクケース5
の適所には、フライ小イール、1体4が、クランクケー
ス11に直接接触lノて破損づるのを防11し、またフ
ライ小イールニ[一体4のジヨイントシャフト32の揺
動範囲をある稈瑣規制けるためにフライホイールストッ
パ51が設けられている。 次いで−[記構成からなるフライホイールのv)作につ
いて説明すると、内燃機関の運転時、クランク軸1は各
気筒でのW、発燃焼により第1図の矢印Y方向に曲げ力
が働き、さらにクランク軸1の出力側には大きな捩りト
ルクが発生し、両者の力が合成されてクランクビン12
とクランクアーム13の6一 接合部△位置には人きl−、応力が働き、接合部△は応
力的に過酷な条件下にある。 この際、従来のフライホイールをクランク軸に同名iノ
だ場合には、従来技術の項で説明したようにエンジン高
速時において、ジャ1[]効果によりフライホイールが
大地系に対して静Iト状態としての力が加わることから
、ピストンににるY方向の力に対lノで上記の接合部△
での応力は一層大きなものとなる不都合があるが、本実
施例の場合においては、前3jli シたようにフライ
ホイール主体4が揺動TjT /IIに克持されている
ので、一種のコニバーリルジ三1インドのような作’I
JJをし、フライホイール(よ大地系に対1)で固定さ
れていないから上記の11メ< 44 @IにおIJる
ジトイ[1効里は低減し、接合部へでの曲げ応力を減少
させることができる。 イt、19ジ:Iイントシャフ1〜両端部32a 、 
321ン外桿と軸受712.43内径どの間隙eは、フ
ライホイール主体一体4のYFJ jtl等によっ′2
異なるが、実験によると通常+1,1Ilv稈mが接合
部へでの応力を減少させ、異常振動を!1−じさけ<T
いための適当な数値であった。 【発明の効果] 本発明は、上述したように、出力側のクランク軸(特に
クランクピンとクランクアームとの接合部)にお【′J
る曲げ応力が、従来のフライホイール取イ(1け構造の
bのよりも低減するので、従来問題とされていたクラン
ク軸の破損が防止でき、エンジンの出力を上げることが
できる。 また、そのフライホイール取付G−J構造は、従来のク
ランク軸にら適用することができ、ジヨイントシャフト
等の取イ・1機構ム筒中なので製造も容易であり、取付
機構に従来のような高分子材料等の弾性体を使用l)て
い<jいので耐久性が高い等の効果も併せ1qられる。 。
An object of the present invention is to provide a flywheel for an internal combustion engine that can reduce the bending stress of the crankshaft caused by the flywheel. [Configuration of the invention 1. In order to accomplish the purpose of 13i1i, the flywheel according to the present invention is divided into inner and outer parts, and the wheel boss part of the Iζ flywheel is fixed to the end of the crankshaft, and the wheel boss part is attached to the wheel boss part 1), The main body of the flywheel fitted on the outside of A is fitted and supported so as to be swingable about an axis orthogonal to the crank axis. [Embodiments] Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. 1 and 2 show the end of a crankshaft equipped with a flywheel according to the invention, the crankshaft 1
The shaft end 2 on the output side is divided into inner and outer parts ll1l! The wheel boss portion 3 on the center side of the combined flywheel is fixed, and an annular flywheel main body 4 is mounted on the outer periphery of the wheel boss portion 3 and swings about an axis perpendicular to the axis of the crankshaft 1. It is movably mounted. Here, to explain the relationship between the above-mentioned crank 101, the wheel boss 3 and the flywheel that are attached to it, the crankshaft 1 is connected to the crank bin 12, which supports the large end of the piston and connecting rod, as usual.
and a crank arm 13, and is rotatably supported by a bearing 6 of a crankcase 5, and is attached to the output end 2 of the crankshaft 1 by a bolt 31 to the wheel boss of the flywheel. 3 is fixed. The wheel boss portion 3 includes a joint shirt [32 on the right 1] which is press-fitted and fixed in a direction perpendicular to the axis of the crankshaft 1, and both ends 32a of the joint shaft 32.
, 32b protrude by a predetermined length from the circumferential surface of the wheel boss portion 3 to cover the outer circumferential surface of the wheel boss portion 3. First, the flywheel main body 4 is the wheel boss portion 3
The peripheral part of the central circular hole that is fitted into the wheel boss part 3 is configured in a two-piece type in the middle direction, and at the joint part of the divided annular pieces 41, the divided annular pieces 41 protrude from the circumferential surface of the wheel boss part 3. Zuru joint shaft/320 both ends 32a
, 32b, and thereby the flywheel main body 4 is supported so as to be swingable about the joint shaft 32. The support portions of both ends 32a and 3211 of the joint shaft are provided with sliding bearings 4 made of a sintered alloy impregnated with A-il.
2.43 is fitted and fixed, and the split annular piece 41
is fixed to the pole 1 by 45, and furthermore, when introducing the flywheel main body 4, both shaft ends 32a
, 32b and the bearings 42.43, spacers 34.35 made of synthetic resin or the like are provided to prevent direct contact between the circumferential surface of the wheel boss 3 and the central circular hole of the flywheel 1/4 that fits therein. It is mediated. Also, crank case 5
The small fly eel 4 is placed in the proper place to prevent the fly eel from coming into direct contact with the crankcase 11 and damage it. (4) A flywheel stopper 51 is provided for regulation. Next, to explain v) the operation of the flywheel having the following configuration, when the internal combustion engine is operating, the crankshaft 1 is subjected to a bending force in the direction of the arrow Y in Fig. 1 due to W in each cylinder and combustion. A large torsional torque is generated on the output side of the crankshaft 1, and the two forces are combined and the crankshaft 12
At the 6-junction Δ position of the crank arm 13, human stress is applied, and the junction Δ is under severe stress conditions. In this case, if the conventional flywheel is the same name as the crankshaft, the flywheel will have a static I position with respect to the ground system due to the Ja 1 [] effect when the engine is at high speed, as explained in the section of the prior art. Since a force is applied as a state, the above joint △
However, in the case of this embodiment, since the flywheel main body 4 is sustained by the swinging TjT /II as shown in the previous example, it is a kind of conibar ring three. 1. Works like India'I
JJ and not fixed by the flywheel (1 to the earth system), the above 11 meters < 44 @ IJ to IJ [1 effect is reduced, and the bending stress to the joint is reduced. can be done. I, 19: I int shaft 1 to both ends 32a,
The gap e between the outer rod of the 321-ring and the inner diameter of the bearing 712.
Although it is different, according to experiments, +1.1 Ilv culm usually reduces the stress on the joint and causes abnormal vibration! 1-Jisake<T
This was an appropriate value for the purpose of Effects of the Invention As described above, the present invention has the advantage that ['J
Since the bending stress caused by the flywheel is reduced compared to that of the conventional flywheel structure (b of the single-piece structure), damage to the crankshaft, which was a problem in the past, can be prevented and the output of the engine can be increased. The flywheel mounting G-J structure can be applied to conventional crankshafts, and it is easy to manufacture because the joint shaft and other mechanisms are in the cylinder, and the mounting mechanism does not require the use of conventional polymer materials. The use of elastic bodies such as l) has the advantage of high durability due to its strength. .

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明が適用さねた内燃機関の7″ノイホイー
ルの−1,′価例を一部断面lノて示1側面図、第2図
は第1図の止面図、第3図は従来のフライホイール取付
GJ構造を説明Jる側面図、第4図は別の従来′JA詩
をi;2明づる側面図である。 1・・・クランク軸、2・・・クランク軸端部、3・・
・ホイールボス部、32・・・ジヨイントシャフト、4
・・・フライホイール主体、5・・・クランクケース。 特許出願人    富士車工業株式会社代理人 弁理士
  小 橋 仏 淳 同   弁理士   村  井     進第1図 第2図 第3図 第4図 X 手続補正書(自発) 1、事イ′1の表示 昭和59年特 許 願第175985号2、発明の名称 内燃機関のフライホーイール 3、補正をする者 事件との関係  特  許  出願人 東京都新宿区西新宿1丁目7番2号 4、代理人 5、補正の対象 図面の第1図 6、補正の内容 図面の第1図を別紙のとおり補正J−る。
Fig. 1 is a side view, partly in section, of a -1,' value example of a 7'' neutral wheel for an internal combustion engine to which the present invention is applied, and Fig. 2 is a top view of Fig. 1; Figure 3 is a side view explaining the conventional flywheel mounting GJ structure, and Figure 4 is a side view explaining another conventional flywheel mounting structure. 1... Crankshaft, 2... Crank Shaft end, 3...
・Wheel boss part, 32...Joint shaft, 4
...Flywheel main body, 5...Crankcase. Patent Applicant: Fuji Car Industry Co., Ltd. Agent Patent Attorney: Jundo Kobashi Patent Attorney: Susumu Murai Figure 1 Figure 2 Figure 3 Figure 4 1959 Patent Application No. 175985 2, Name of the invention: Internal combustion engine flywheel 3, Relationship with the case of the person making the amendment Patent Applicant: 1-7-2-4 Nishi-Shinjuku, Shinjuku-ku, Tokyo, Agent 5; Figure 1 6 of the drawing to be corrected and Figure 1 of the content drawing of the correction are corrected as shown in the attached sheet.

Claims (1)

【特許請求の範囲】[Claims] クランク軸の端部に、内外に分割嵌合されたフライホイ
ールのホイールボス部を固着し、該ホイールボス部に対
し、その外側に嵌合されるフライホイール主体を、クラ
ンク軸線と直交する軸を中心として揺動自在に嵌合支持
してなることを特徴とする内燃機関のフライホイール。
The wheel boss part of the flywheel that is fitted on the inside and outside is fixed to the end of the crankshaft, and the flywheel main body that is fitted on the outside is attached to the wheel boss part with an axis perpendicular to the crank axis. A flywheel for an internal combustion engine characterized by being fitted and supported at the center so as to be able to swing freely.
JP17598584A 1984-08-24 1984-08-24 Flywheel for internal-combustion engine Pending JPS6155432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17598584A JPS6155432A (en) 1984-08-24 1984-08-24 Flywheel for internal-combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17598584A JPS6155432A (en) 1984-08-24 1984-08-24 Flywheel for internal-combustion engine

Publications (1)

Publication Number Publication Date
JPS6155432A true JPS6155432A (en) 1986-03-19

Family

ID=16005679

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17598584A Pending JPS6155432A (en) 1984-08-24 1984-08-24 Flywheel for internal-combustion engine

Country Status (1)

Country Link
JP (1) JPS6155432A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11773592B2 (en) 2006-01-20 2023-10-03 Material Innovations Llc Carpet waste composite

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11773592B2 (en) 2006-01-20 2023-10-03 Material Innovations Llc Carpet waste composite

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