JPS58180855A - Method of attaching fly-wheel - Google Patents

Method of attaching fly-wheel

Info

Publication number
JPS58180855A
JPS58180855A JP57064356A JP6435682A JPS58180855A JP S58180855 A JPS58180855 A JP S58180855A JP 57064356 A JP57064356 A JP 57064356A JP 6435682 A JP6435682 A JP 6435682A JP S58180855 A JPS58180855 A JP S58180855A
Authority
JP
Japan
Prior art keywords
wheel
crankshaft
fly
handwheel
bolt
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
JP57064356A
Other languages
Japanese (ja)
Inventor
Shigehiko Arita
有田 重彦
Kazuhito Uchida
和仁 内田
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.)
Yanmar Co Ltd
Original Assignee
Yanmar Diesel Engine Co 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 Yanmar Diesel Engine Co Ltd filed Critical Yanmar Diesel Engine Co Ltd
Priority to JP57064356A priority Critical patent/JPS58180855A/en
Publication of JPS58180855A publication Critical patent/JPS58180855A/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
    • 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)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

PURPOSE:To prevent a pressing stress from being generated when a fly-wheel is attached, by abutting the fly-wheel on a crankshaft end surface, inserting a knock pin to span the crankshaft end surface and the side of the fly-wheel, and securing the fly-wheel by an end bolt. CONSTITUTION:The end of the crankshaft 11 is straight, and the center of its end surface 12 is formed integrally with the end bolt 13 having a smaller diameter than the outer diameter of the crankshaft 11. Therefore, when the fly- wheel 14 is attached, a through-hole 15 of the fly-wheel 14 is fitted on the end bolt 13 until its fitting recess 16 is forcibly fitted to the crankshaft end, the knock pin 19 is inserted to span aligned pin openings 17, 18, and then a nut 20 is threaded and secured on the end bolt 13 extending outward of the fly-wheel 14 to secure the fly-wheel 14.

Description

【発明の詳細な説明】 本発明は、主として横形水冷機関に使用されるハズミ車
の取付は方法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for installing a hand wheel used primarily in a horizontal water-cooled engine.

第10は、従来一般に行なわれているこの種横形水冷機
関のハズミ車取付は方法を示したもので、クランク軸(
1)端部にテーバ(1a)を形成し、このテーパ(ra
)部ヘハズミ車(2)を圧入するとともに、両者間にキ
ー(3)を介装し、ハズミ車(2)外側においてクラン
ク軸(1)軸端に突設したエンドボルト(4)ヘナソト
(5)を螺合して、このハズミ車(2)を締付けている
。しかしながら、このような従来の方法においては、圧
入方式によるものであるため、ハズミ車(2)のボス内
周、特にキー(3)の溝部分に圧入応力を生じ、強度を
低下させる等の欠点がある。他方、第2図は、多シリン
ダ立形機関において実施されている取付は方法であって
、クランク軸(1)端部にフランジ(1b)を形成し、
ハズミ車(2)外方よりとのハズミ車(2)へ挿込んだ
複数のボルト(6)を、フランジ(1b)部へ螺込んで
締付けるものである。このようなフランジ方式の取付は
方法によると、前記圧入方式のような応力を生ずること
がなく、シたがって強度的に有利であるが、しかしなが
ら、フランジ(1b)がクランク軸(1)外周側へ突出
するため、メタル胴を用いてクランク軸(1)を支持す
る横形水冷機関には実施できないものであった。
The tenth section shows how to install a hand wheel on this type of horizontal water-cooled engine, which has been commonly done in the past, and the crankshaft (
1) A taper (1a) is formed at the end, and this taper (ra
), insert the key (3) between them, and attach the end bolt (4) protruding from the shaft end of the crankshaft (1) on the outside of the handwheel (2). ) are screwed together to tighten this handwheel (2). However, since this conventional method uses a press-fitting method, it has disadvantages such as press-fitting stress occurring on the inner periphery of the boss of the hand wheel (2), especially in the groove of the key (3), reducing strength. There is. On the other hand, FIG. 2 shows a mounting method implemented in a multi-cylinder vertical engine, in which a flange (1b) is formed at the end of the crankshaft (1),
A plurality of bolts (6) inserted into the handwheel (2) from the outside are screwed into the flange (1b) and tightened. Depending on the mounting method, such a flange method does not generate stress unlike the above-mentioned press-fit method, and is therefore advantageous in terms of strength. Because of this, it could not be implemented in a horizontal water-cooled engine that uses a metal shell to support the crankshaft (1).

本発明は上記従来の点を鑑み、強度上の難点のない多シ
リンダ立形機関と同様の取付は方法を、横形水冷機関に
も使用できるようにすることを目的としてなされたもの
で、その構成は、ストレートに形成されたクランク軸端
面ヘノ・ズミ車を当接するとともに、これら互いに当接
するクランク軸端面とハズミ車側面とに跨ってノックピ
ンを挿込み、クランク軸端面より突設し若しくはノ・ズ
ミ車外方より挿込んで、該ハズミ車中心を貫通させたエ
ンドボルトにて、このノ・ズミ車を締付けることを特徴
とするものである。
In view of the above-mentioned conventional problems, the present invention has been made with the aim of making it possible to use the same mounting method for horizontal water-cooled engines as for multi-cylinder vertical engines, which does not have the disadvantages in terms of strength. In this method, the straight-formed crankshaft end surface is brought into contact with the helical wheel, and a knock pin is inserted across the crankshaft end surface and the side surface of the helical wheel, which are in contact with each other. This is characterized in that the saw wheel is tightened with an end bolt that is inserted from outside the vehicle and penetrates through the center of the wheel.

以下、本発明の構成を図示の一実施例に基づいて説明す
ると、第3図において1.(11)はクランク軸であっ
て、このクランク軸(11)は、その端部がフランジを
形成されることなくストレートに形成されるとともに、
その端面(12)の中心部には、クランク軸(11)外
径よシも小径としたエンドボルト(13)が、軸芯方向
に突出して一体形成されている。
Hereinafter, the configuration of the present invention will be explained based on an illustrated embodiment. In FIG. 3, 1. (11) is a crankshaft, and the end of the crankshaft (11) is formed straight without being formed with a flange, and
An end bolt (13) whose outer diameter is smaller than that of the crankshaft (11) is integrally formed in the center of the end surface (12) and projects in the axial direction.

他方、ハズミ車(14)は、その中心に前記エンドポル
) (13)への貫通孔(15)を有するとともに、そ
の内側面部わちクランク軸端面(12)への対接面に、
浅い嵌合凹部(16)を形成している。また、これらク
ランク軸端面(12)とハズミ車(14)との対接接合
面には、互いに一致するピン穴(17)(18)が形成
されている。このようにして形成されたハズミ車(14
)とクランク軸(11)は、まず、ハズミ車(14)の
貫通孔(15)をエンドポル) (13)へ嵌合して、
その嵌合凹部(16)がクランク軸(11)端部へ嵌合
するまで押込むとともに、前記互いに一致するピン穴(
17)(18)に跨ってノックピン(19)を挿込む。
On the other hand, the handwheel (14) has a through hole (15) to the end pole (13) at its center, and has a hole (15) on its inner surface, that is, the surface facing the crankshaft end surface (12).
A shallow fitting recess (16) is formed. In addition, pin holes (17) and (18) that coincide with each other are formed in the opposing joint surfaces of the crankshaft end face (12) and the hand wheel (14). The hand wheel (14) formed in this way
) and the crankshaft (11), first fit the through hole (15) of the hand wheel (14) into the end pole (13),
Push it in until the fitting recess (16) fits into the end of the crankshaft (11), and press the matching pin holes (
17) Insert the dowel pin (19) across (18).

次いで、ハズミ車(14)外方に突出するエンドボルト
(13)へエンドナツト(20)を螺合し、このエンド
ナラ) (20)の締付けによってハズミ車(14)を
締付は固定する。
Next, the end nut (20) is screwed onto the end bolt (13) protruding outward from the handwheel (14), and the end nut (20) is tightened to fix the handwheel (14).

第4諧本発明の他の実施例であ・て、前記第3図のエン
ドボルト(13)を形成する代りに、クランク軸端面(
12)へネジ穴(21)を穿設したものである。ハズミ
車(14)の構造は第3図と同じであシ、その内側面に
形成した嵌合凹部(16)をクランク軸(11)端部へ
嵌合して、該内側面をクランク軸端面(12)へ対接接
合し、前記と同様に両者のピン穴(17)(18)に跨
ってノックビン(19)挿込み、次いで、ハズミ車(1
4)中心の貫通孔(15)へ、外方よシエンドボル) 
(22)を挿込むとともに、その先端を、前記ネジ穴(
12)へ螺込んで締付けるものである。
Fourth Aspect In another embodiment of the present invention, instead of forming the end bolt (13) shown in FIG. 3, the crankshaft end face (
12) is provided with a screw hole (21). The structure of the hand wheel (14) is the same as that shown in FIG. (12), and insert the knock bottle (19) across the pin holes (17) and (18) of both in the same way as above, and then
4) To the center through hole (15), outward direction)
(22) and insert its tip into the screw hole (
12) and tighten it.

上記において、エンドポル) (13X22)の締付は
力は、締付けによる摩擦トルクが機関最大トルクと同等
以上になるよう設計される。また、この場合の締付は力
を計算すると、前記第1図のテーバ方式のものに比較し
て、約1.7倍の締付は力が必要である。このような計
算に基づき、テーパ方式で1.7 kgmの締付はトル
クに対し、本発明の場合その約1.6倍の28kgmの
締付は力として、出力4ps / 240Or pmの
横形水冷機関に実施し、その耐久試験を行なったところ
、実用上問題ないことを確認した。なお、その際に使用
したノックピン(19)は、剪断トルク・=2.7 k
gmの硬鋼ピンであった0 本発明は以上の構成であシ、このように本発明によれば
、従来立形機関に使用されているフランジ方式のものに
比較して、クランク軸外周にフランジを形成することが
ないから、メタル胴軸受を使用する横形水冷機関にも実
施できるようになったものであり、このように横形水冷
機関に使用することによって、更に、次のような効果が
得られる0 ■ 従来の横形水冷機関ではテーバ圧入方式によってい
たため、とのテーパ部の必要な締付はトルクを確保する
ため、ハズミ車のボス部が厚くなり、それに伴なってク
ランク軸軸端も長くなるが、本発明では、そのような必
要がなく、ハズミ車ボス部を薄くシ、かつ、クランク軸
軸端長さを短縮でき、軽量化することができる。
In the above, the tightening force of ENDOPOL (13X22) is designed so that the friction torque due to tightening is equal to or higher than the maximum torque of the engine. Further, when calculating the force for tightening in this case, it is found that approximately 1.7 times as much force is required for tightening as compared to the Taber method shown in FIG. Based on such calculations, tightening of 1.7 kgm with the taper method is equivalent to torque, and in the case of the present invention, tightening of 28 kgm, which is approximately 1.6 times that amount, is equivalent to force, and horizontal water-cooled engine with an output of 4 ps / 240 Or pm. We conducted a durability test and found that there were no problems in practical use. The dowel pin (19) used at that time has a shearing torque of 2.7 k.
GM's hard steel pin 0 The present invention has the above configuration.As described above, according to the present invention, compared to the flange type used in conventional vertical engines, the outer periphery of the crankshaft is Because there is no flange to be formed, it can now be applied to horizontal water-cooled engines that use metal shell bearings, and by using it in horizontal water-cooled engines in this way, the following effects can be achieved: 0 ■ Conventional horizontal water-cooled engines used the taper press-fitting method, so the hub part of the hub wheel became thicker in order to secure the necessary tightening torque of the tapered part. However, in the present invention, such a need is eliminated, and the hub wheel boss portion can be made thinner, and the length of the end of the crankshaft shaft can be shortened, making it possible to reduce the weight.

■ 同様に圧入方式でなく、ハズミ車をエンドボルトで
締付けるため、圧入応力が発生せず強度が高い。
■ Similarly, instead of using the press-fit method, the wheel is tightened with end bolts, so there is no press-fit stress and the strength is high.

■ 上記圧入方式では、・・ズミ車の取出しに専用工具
が必要であるが、本発明では、エンドボルトの締付けを
外すのみで、容易に取外すことができる。
■ In the press-fitting method described above, a special tool is required to remove the wheel, but with the present invention, it can be easily removed by simply unfastening the end bolt.

以上のように、本発明の取付は方法によれば、従来の横
形水冷機関では得られなかった秀れた効果を得ることが
できるものである。
As described above, according to the mounting method of the present invention, it is possible to obtain excellent effects that cannot be obtained with conventional horizontal water-cooled engines.

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

第1図及び第2図は夫々従来の取付は方法を示す要部縦
断面図、第3図及び第4図は、夫々本発明実施例を示す
ハズミ車取付は部の縦断面図である0 (11)、、、クランク軸、 (12) 、、、クラン
ク軸端面、(13)(22)、、、エンドボルト、 (
19)、、、ノックピン、(20)、、、ナツト、 (
21)、、、ネジ穴。
FIGS. 1 and 2 are longitudinal cross-sectional views of essential parts showing a conventional mounting method, and FIGS. 3 and 4 are longitudinal cross-sectional views of a manual wheel mounting method showing an embodiment of the present invention, respectively. (11), , Crankshaft, (12) , ,Crankshaft end face, (13)(22), ,End bolt, (
19),,, knock pin, (20),,, nut, (
21), Screw hole.

Claims (1)

【特許請求の範囲】 1、 ストレートに形成されたクランク軸端面ヘハズミ
車を当接するとともに、これら互いに当接するクランク
軸端面とハズミ車側面とに跨ってノックピンを挿込み、
クランク軸端面よシ突役し若しくはハズミ車外方より挿
込んで、該ハズミ車中心を貫通させたエンドボルトにて
、とのハズミ車を締付けることを特徴とするハズミ車取
付は方法。 2、 クランク軸端面(ニジ該クランク軸外径より小径
のエンドボルトを突設し、ハズミ車外方において、この
エンドボルトに取付けたナツトにて該・・ズミ車を締付
けるようにした特許請求の範囲第1項記載のハズミ車取
付゛け方法。 3、 ハズミ車外方よりこのハズミ車中心を通ってエン
ドボルトを挿通し、このエンドボルトの先端をクランク
軸端面へ螺入して、前記ハズミ車を締付けるようにした
特許請求の範囲第1項記載のハズミ車取付は方法。
[Claims] 1. A dowel wheel is brought into contact with a straight crankshaft end face, and a knock pin is inserted across the crankshaft end face and the side face of the handwheel, which are in contact with each other.
A method for attaching a wheel wheel, which is characterized by tightening the wheel wheel with an end bolt that protrudes from the end face of the crankshaft or is inserted from the outside of the wheel wheel and passes through the center of the wheel wheel. 2. The scope of the patent claims, in which an end bolt with a smaller diameter than the outside diameter of the crankshaft is protruded from the end face of the crankshaft, and the dial wheel is tightened with a nut attached to the end bolt on the outside of the wheel wheel. The method for attaching a handwheel as described in paragraph 1. 3. Insert an end bolt from the outside of the handwheel through the center of the handwheel, screw the tip of the end bolt into the end face of the crankshaft, and then attach the handwheel. A method for attaching a hand wheel according to claim 1, wherein the screw wheel is tightened.
JP57064356A 1982-04-16 1982-04-16 Method of attaching fly-wheel Pending JPS58180855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57064356A JPS58180855A (en) 1982-04-16 1982-04-16 Method of attaching fly-wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57064356A JPS58180855A (en) 1982-04-16 1982-04-16 Method of attaching fly-wheel

Publications (1)

Publication Number Publication Date
JPS58180855A true JPS58180855A (en) 1983-10-22

Family

ID=13255884

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57064356A Pending JPS58180855A (en) 1982-04-16 1982-04-16 Method of attaching fly-wheel

Country Status (1)

Country Link
JP (1) JPS58180855A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6073931U (en) * 1983-10-27 1985-05-24 栃木富士産業株式会社 centering structure
EP1564437A1 (en) * 2004-02-13 2005-08-17 Ford Global Technologies, LLC, A subsidary of Ford Motor Company System with crankshaft and flywheel and method of producing such a system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6073931U (en) * 1983-10-27 1985-05-24 栃木富士産業株式会社 centering structure
EP1564437A1 (en) * 2004-02-13 2005-08-17 Ford Global Technologies, LLC, A subsidary of Ford Motor Company System with crankshaft and flywheel and method of producing such a system

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