JP3173075B2 - Manufacturing method of propeller shaft - Google Patents
Manufacturing method of propeller shaftInfo
- Publication number
- JP3173075B2 JP3173075B2 JP30748691A JP30748691A JP3173075B2 JP 3173075 B2 JP3173075 B2 JP 3173075B2 JP 30748691 A JP30748691 A JP 30748691A JP 30748691 A JP30748691 A JP 30748691A JP 3173075 B2 JP3173075 B2 JP 3173075B2
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- propeller shaft
- yoke
- wall
- manufacturing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
- F16C3/026—Shafts made of fibre reinforced resin
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
- F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
- F16D3/382—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another constructional details of other than the intermediate member
- F16D3/387—Fork construction; Mounting of fork on shaft; Adapting shaft for mounting of fork
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/06—Drive shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Arrangement Of Transmissions (AREA)
- Motor Power Transmission Devices (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はプロペラシャフトの製造
方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a propeller shaft.
【０００２】[0002]
【従来の技術】自動車工業の分野では、車輌重量を軽く
して燃費節減を図るために、各種の部材を繊維強化プラ
スチック材で代替することが試みられている。これら部
材のうち、たとえば、プロペラシャフトは、繊維強化プ
ラスチック管の両端部に、駆動軸や従動軸と連結してそ
のトルクを伝達するための接続継手を接続した構造にな
っている。このようなプロペラシャフトにおいては、ト
ルク伝達時に、繊維強化プラスチック管と接続継手との
接続部に応力集中が発生しやすく、そのため、当該接続
部は充分大きい破壊強度を有する接続状態になっている
ことが必要とされる。2. Description of the Related Art In the field of the automobile industry, attempts have been made to replace various members with fiber-reinforced plastic materials in order to reduce vehicle weight and to reduce fuel consumption. Among these members, for example, the propeller shaft has a structure in which connection joints for connecting to a drive shaft and a driven shaft and transmitting the torque are connected to both ends of the fiber reinforced plastic tube. In such a propeller shaft, at the time of torque transmission, stress concentration tends to occur at the connection portion between the fiber reinforced plastic pipe and the connection joint, and therefore, the connection portion is in a connection state having sufficiently large breaking strength. Is required.
【０００３】ところで、繊維強化プラスチック管と継手
部材とを接続する方法としては、従来、様々な方法が提
案されている。たとえば、繊維強化プラスチック管体の
端部内壁に周方向に延びる２条の溝を平行に周設し、こ
れらの溝に弾力性を有するＯリングを嵌め込み、前記管
体に継手部材を挿入した後Ｏリング間に接着剤を注入し
て接続する方法が、特開昭５２−１２７５５２号公報に
開示されている。[0003] By the way, as a method of connecting the fiber reinforced plastic pipe and the joint member, various methods have been conventionally proposed. For example, two grooves extending in the circumferential direction are provided in parallel on the inner wall of the end portion of the fiber-reinforced plastic tube, O-rings having elasticity are fitted into these grooves, and after the joint member is inserted into the tube, A method of injecting an adhesive between O-rings and connecting them is disclosed in Japanese Patent Application Laid-Open No. 52-127552.
【０００４】しかしながら、この方法で形成された接続
部は、強度が小さく、しかも耐久性に劣るという問題が
あり、前記したプロペラシャフトのような過酷な条件下
で使用される部材に適用することはほとんどできない。
また、特開昭５５−１５９３１４号には、繊維強化プラ
スチック管の端部内壁に金属製スリーブを組み込んだシ
ャフトの製造方法が開示されている。However, the connecting portion formed by this method has a problem that strength is low and durability is inferior. Therefore, it is difficult to apply the connecting portion to a member used under severe conditions such as the above-mentioned propeller shaft. Almost not.
Japanese Patent Application Laid-Open No. 55-159314 discloses a method of manufacturing a shaft in which a metal sleeve is incorporated into the inner wall of the end of a fiber reinforced plastic tube.
【０００５】この方法によれば、フィラメントワインデ
ィング法で繊維強化プラスチック管を成形するときに、
まずマンドレルの所定位置に、外周の断面形状が多角形
になっている金属製スリーブを配置し、この上から樹脂
含浸強化繊維を巻付けることにより、前記金属製スリー
ブが一体に組込まれた繊維強化プラスチック管が製造さ
れる。そして、接続継手と前記金属製スリーブを溶接し
て両者の接続がなされている。According to this method, when forming a fiber reinforced plastic tube by the filament winding method,
First, at a predetermined position of the mandrel, a metal sleeve having a polygonal outer peripheral cross-section is arranged, and a resin-impregnated reinforcing fiber is wound from above, thereby reinforcing the fiber with the metal sleeve integrated therein. Plastic tubes are manufactured. Then, the connection joint and the metal sleeve are welded to connect the two.
【０００６】しかしながら、この方法においても、つぎ
のような問題がある。すなわち、まず、接続継手との正
確な接続との関係で、マンドレルへの金属製スリーブの
配置作業は可成り煩雑となり、そのため、生産性の低下
を招きやすい。また、金属製スリーブの外周の断面形状
は多角形になっているので、ここに巻付けられた強化繊
維は前記多角形の頂部で応力集中を受けやすくなり、そ
の結果、強化繊維が金属製スリーブの表面から剥離して
しまうこともある。さらには、接続継手と金属製スリー
ブとの溶接時に、その熱によって、成形されている繊維
強化プラスチック管の一部が劣化するという問題も発生
する。However, this method also has the following problems. That is, first, the work of arranging the metal sleeve on the mandrel becomes considerably complicated due to the accurate connection with the connection joint, and therefore, the productivity tends to be reduced. Further, since the cross-sectional shape of the outer periphery of the metal sleeve is polygonal, the reinforcing fibers wound here are easily subjected to stress concentration at the top of the polygon, and as a result, the reinforcing fibers are May be peeled off from the surface. Furthermore, when welding the connection joint and the metal sleeve, there is also a problem that a part of the molded fiber reinforced plastic pipe is deteriorated by the heat.
【０００７】また、特公昭６２−５３３７３号公報に
は、つぎのような接続方法が開示されている。この方法
では、接続素子の接続端の外周に軸方向に延びる切込み
歯を形成し、この接続素子を繊維強化プラスチック管の
管口から圧入したのち、その繊維強化プラスチック管の
外側に、金属製の支持環を押し嵌めて３者を同心的に組
み合わせている。前記した切込み歯が圧入の過程で繊維
強化プラスチック管の内壁に刻み目をつけ、これが切込
み歯と噛み合っていることにより、接続素子と繊維強化
プラスチック管との相対回転が防止される。Japanese Patent Publication No. Sho 62-53373 discloses the following connection method. In this method, cutting teeth extending in the axial direction are formed on the outer periphery of the connection end of the connection element, and the connection element is press-fitted from the opening of the fiber-reinforced plastic pipe, and then a metal-made outside of the fiber-reinforced plastic pipe. The support rings are pressed together to concentrically combine the three members. The incisors cut the inner wall of the fiber-reinforced plastic tube during the press-fitting process, and the incisions mesh with the incisions, thereby preventing relative rotation between the connection element and the fiber-reinforced plastic tube.
【０００８】しかしながら、この方法の場合、接続素子
と繊維強化プラスチック管と支持環を同心的に組み合わ
せるためには、フィラメントワインディング法で成形し
たのちの繊維強化プラスチック管の外周を、偏肉しない
ように機械加工することが必要になる。また、支持環は
金属製であるため、全体の重量は増加してしまい、軽量
化の実現という目的と相反するようになる。However, in this method, in order to concentrically combine the connecting element, the fiber-reinforced plastic tube, and the support ring, the outer periphery of the fiber-reinforced plastic tube formed by the filament winding method should not be uneven. Machine processing is required. In addition, since the support ring is made of metal, the overall weight increases, which is contrary to the object of achieving weight reduction.
【０００９】このように、繊維強化プラスチック管と接
続継手との接続に関する従来方法には、上記したような
多くの問題があり、プロペラシャフトの製造方法として
適切であるとはいいがたい。As described above, the conventional method relating to the connection between the fiber reinforced plastic pipe and the connection joint has many problems as described above, and cannot be said to be suitable as a method for manufacturing a propeller shaft.
【００１０】[0010]
【発明が解決しようとする課題】本発明の目的は、繊維
強化プラスチック管と接続継手との接続における上記し
たような問題を解決することにより、トルク伝達軸とし
ての充分なトルク伝達力を有するとともに、製造が比較
的簡単で、したがって安価に製造することができるプロ
ペラシャフトの製造方法を提供することである。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems in connection between a fiber-reinforced plastic pipe and a connection joint, thereby providing a sufficient torque transmission force as a torque transmission shaft. It is an object of the present invention to provide a method of manufacturing a propeller shaft which is relatively simple to manufacture and therefore can be manufactured at low cost.
【００１１】[0011]
【課題を解決するための手段】上記した目的を達成する
ために、本発明においては、繊維強化プラスチックから
なり、かつ、端部に強化繊維による周方向補強巻層を含
んでいる円筒体の前記端部の内側に、外周面に、軸方向
に延び、かつ、歯先円の直径が前記円筒体の前記端部の
内径よりも大きい切込み歯を有するヨークを圧入し、前
記切込み歯で前記円筒体の前記端部の内壁に刻み目を刻
設しながら、前記切込み歯を、前記端部の前記内壁に喰
い込ませることによって、前記円筒体と前記ヨークとを
相対回転しないように接続するプロペラシャフトの製造
方法であって、 前記円筒体は、端部の肉厚が他の部分の
肉厚の１.２〜２.０倍であることを特徴とする、プロペ
ラシャフトの製造方法が提供される。また、本発明にお
いては、繊維強化プラスチックからなり、かつ、端部に
強化繊維による周方向補強巻層を含んでいる円筒体の前
記端部の内側に、外周面に、軸方向に延び、かつ、歯先
円の直径が前記円筒体の前記端部の内径よりも大きい切
込み歯を有するヨークを圧入し、前記切込み歯で前記円
筒体の前記端部の内壁に刻み目を刻設しながら、前記切
込み歯を、前記端部の前記内壁に喰い込ませることによ
って、前記円筒体と前記ヨークとを相対回転しないよう
に接続するプロペラシャフトの製造方法であって、 前記
円筒体は、前記切込み歯の歯先円の直径と円筒体の端部
との差が０.１〜０.６mmであることを特徴とする、プロ
ペラシャフトの製造方法が提供される。 更に、本発明に
おいては、繊維強化プラスチックからなり、かつ、端部
に強化繊維による周方向補強巻層を含んでいる円筒体の
前記端部の内側に、外周面に、軸方向に延び、かつ、歯
先円の直径が前記円筒体の前記端部の内径よりも大きい
切込み歯を有するヨークを圧入し、前記切込み歯で前記
円筒体の前記端部の内壁に刻み目を刻設しながら、前記
切込み歯を、前記端部の前記内壁に喰い込ませることに
よって、前記円筒体と前記ヨークとを相対回転しないよ
うに接続するプロペラシャフトの製造方法であって、 前
記円筒体は、前記円筒体の端部に対する圧入長が、円筒
体の端部の内径の０.５〜１.０倍であることを特徴とす
る、プロペラシャフトの製造方法が提供され る。 In order to achieve the above-mentioned object, according to the present invention, there is provided a cylindrical body made of fiber reinforced plastic and having a circumferential reinforcing winding layer made of reinforcing fibers at one end. Inside the end, press-fit a yoke extending in the axial direction to the outer peripheral surface and having a cutting tooth having a diameter of a tip circle larger than the inner diameter of the end of the cylindrical body, and the cutting tooth is used to press the cylinder. A propeller shaft that connects the cylindrical body and the yoke so that they do not rotate relative to each other by cutting the notch teeth into the inner wall of the end while making a notch in the inner wall of the end of the body. Manufacturing of
The method according to claim 1, wherein the cylindrical body has an end portion having a thickness of another portion.
Characterized in that the thickness is 1.2 to 2.0 times the wall thickness.
A method for manufacturing a rashaft is provided. In addition, the present invention
Is made of fiber reinforced plastic and
In front of a cylinder containing a circumferentially reinforced winding layer with reinforcing fibers
Inside the end, on the outer circumference, in the axial direction, and at the tip
A cut in which the diameter of the circle is larger than the inner diameter of the end of the cylinder
A yoke having a cutting tooth is press-fitted, and the circle is formed with the cutting tooth.
While cutting a notch on the inner wall of the end of the cylindrical body,
By inserting a denture into the inner wall of the end,
Therefore, the cylinder and the yoke do not rotate relative to each other.
A method of manufacturing a propeller shaft to be connected to the
The cylindrical body has the diameter of the tip circle of the cutting tooth and the end of the cylindrical body.
The difference between 0.1 and 0.6 mm
Provided is a method for manufacturing a prop shaft. Furthermore, the present invention
In the fiber reinforced plastic
Of a cylindrical body containing a circumferentially reinforced winding layer with reinforcing fibers
Inside the end, on the outer peripheral surface, axially extending, and teeth
The diameter of the tip circle is larger than the inner diameter of the end of the cylindrical body
A yoke having cutting teeth is press-fitted, and the cutting teeth
While carving a notch on the inner wall of the end of the cylindrical body,
Making the incision bite into the inner wall of the end portion
Therefore, the cylindrical body and the yoke do not rotate relative to each other.
A method of manufacturing a propeller shaft urchin connection, before
The press-fit length to the end of the cylindrical body is cylindrical.
0.5 to 1.0 times the inner diameter of the end of the body
That method of the propeller shaft is Ru are provided.
【００１２】[0012]
【作用】本発明方法によれば、繊維強化プラスチックか
らなる円筒体の端部の肉厚が他の部分の肉厚の１.２〜
２.０倍であるか、ヨーク接続端の切込み歯の歯先円の
直径と円筒体の端部との差が０.１〜０.６mmであるか、
または円筒体の端部に対するヨーク接続端の圧入長が円
筒体の端部の０.５〜１.０倍であるかになっているの
で、ヨークの接続端を円筒体の端部に圧入すると、ヨー
クの接続端の外周に形成されている切込み歯は、円筒体
の端部の内壁に刻み目を刻設しながら前記端部の内壁に
喰い込み、自らが刻設した刻み目と噛み合って、ヨーク
と円筒体とは相対回転が起こらないように接続される。According to the method of the present invention, a fiber reinforced plastic
The thickness of the end of the cylindrical body made of
2.0 times or the tip circle of the incisor at the yoke connection end
Whether the difference between the diameter and the end of the cylinder is 0.1 to 0.6 mm,
Or the press-fit length of the yoke connection end to the end of the cylinder is circular
0.5 to 1.0 times the end of the cylinder
In, when press-fitting the connection end of the yoke to the end of the circular cylinder, the cut teeth formed on the outer periphery of the connection end of the yoke, the cylindrical body of said end portion while engraved indentations on the inner wall of the end of the The yoke and the cylindrical body are connected to each other so that they bite into the inner wall and engage with the notches formed by themselves to prevent relative rotation.
【００１３】そのとき、円筒体の端部では、円周方向が
補強されているので、ヨークが円筒体の端口に圧入され
ても、その管口は変形せずに当初の口径を保持し、切込
み歯による円筒体内壁への喰い込みが確実に進み、しか
も、径方向の緊締力を受けるようになって、その接続状
態は非常に強固になる。また、本発明方法によれば、円
筒体の外側に支持環を配することも必要でないため、同
心度をだすための外周への機械加工は不要となり、軽量
化と相俟って接続に要する工程が簡略化される。At this time, since the circumferential direction is reinforced at the end of the cylindrical body, even if the yoke is press-fitted into the end of the cylindrical body, the opening of the cylindrical body does not deform and retains the original diameter. The biting of the cutting teeth into the inner wall of the cylindrical body proceeds reliably, and furthermore, a radial tightening force is applied, so that the connection state becomes very strong. Further, according to the method of the present invention, since it is not necessary to dispose the support ring outside the cylindrical body, machining for the outer periphery for achieving concentricity is not required, and the connection is required together with the weight reduction. The process is simplified.
【００１４】[0014]
【実施態様】以下に、添付図面に基づいて実施態様を説
明する。図１において、円筒体１は、常用のフィラメン
トワインディング法などの方法で成形されたもので、そ
の管口１ａから所望の長さｌに亘る端部１ｂでは、その
内径はＤと一定で、その円周方向の強度が他の部分１ｃ
よりも補強されている。そして、この管口１ａから後述
するヨークの接続端が圧入されることにより、この端部
１ｂが両者の接続部となる。Embodiments will be described below with reference to the accompanying drawings. In FIG. 1, a cylindrical body 1 is formed by a method such as a conventional filament winding method, and has an inner diameter D which is constant at an end 1b extending from a pipe opening 1a to a desired length l. The circumferential strength is other part 1c
More reinforced. Then, a connection end of a yoke to be described later is press-fitted from the pipe opening 1a, so that the end 1b becomes a connection portion between the two.
【００１５】この円筒体をフィラメントワインディング
法で成形する場合、それがトルク伝達軸として使用され
ることを考慮にいれると、曲げ共振周波数を高めるため
には、樹脂含浸強化繊維を、円筒体の軸方向に対して５
〜２０°の巻き角度で所望の厚みになるまでマンドレル
の全長に亘って巻付けたのち、それを熱処理している。
しかし、このような巻付けの態様では、成形された円筒
体の円周方向弾性率があまり高くないので、ここにヨー
クの接続端を圧入したときに、端部１ｂの内径Ｄが変化
してしまい、良好な接続状態が得られなくなる。When this cylindrical body is formed by the filament winding method, considering that it is used as a torque transmission shaft, in order to increase the bending resonance frequency, a resin-impregnated reinforcing fiber must be formed on the shaft of the cylindrical body. 5 for direction
After winding over the entire length of the mandrel to a desired thickness at a winding angle of ２０20 °, it is heat treated.
However, in such a winding mode, since the circumferential elastic modulus of the formed cylindrical body is not so high, when the connection end of the yoke is press-fitted here, the inner diameter D of the end 1b changes. As a result, a good connection state cannot be obtained.
【００１６】そのため、本発明に用いる円筒体１の場合
は、少なくともこの端部１ｂの円周方向の強度、具体的
には、弾性率が２〜１０ton/mm2 となるように補強され
る。端部１ｂの円周方向弾性率を上記値まで補強するた
めには、たとえば、内径Ｄが５０〜８０mmのとき、端部
１ｂを成形するときに、これに加えて、樹脂含浸強化繊
維を円筒体の軸方向に対して８０〜９０°の範囲で配列
するように巻付け、その巻付け層を２〜１０層存在させ
るようにして周方向補強巻層１ｄを形成すればよい。当
然、端部１ｂは他の部分１ｃよりも厚肉になる。Therefore, in the case of the cylindrical body 1 used in the present invention, the cylindrical body 1 is reinforced so that at least the circumferential strength of the end portion 1b, specifically, the elastic modulus is 2 to 10 ton / mm 2 . In order to reinforce the circumferential elastic modulus of the end portion 1b to the above value, for example, when the inner diameter D is 50 to 80 mm, when forming the end portion 1b, in addition to this, the resin-impregnated reinforced fiber is cylindrical. What is necessary is just to wind so that it may be arrange | positioned in the range of 80-90 degrees with respect to the axial direction of a body, and to form the circumferential reinforcement winding layer 1d so that there may be 2 to 10 winding layers. Naturally, the end portion 1b is thicker than the other portion 1c.
【００１７】このとき、シャフトになる円筒体１に許容
される外径は、他の部材との関係で決定されるので、こ
の外径があまり大きくなることは好ましくない。また、
外径が大きくなると、曲げ共振周波数が低下したり、重
量が増加したりするという問題も生じてくる。このよう
なことから、端部１ｂを補強するための補強巻層１ｄの
肉厚は、他の部分１ｃの厚みの1.２〜2.０倍の範囲内に
制限することが必要になる。また、補強巻層１ｄと他の
部分１ｃとの境界は、画然とした段差構造ではなく、図
１で示したようなテーパー１ｅを形成していることが好
ましい。局部的な応力集中の発生を防止できるからであ
る。At this time, since the outer diameter allowed for the cylindrical body 1 serving as the shaft is determined in relation to other members, it is not preferable that the outer diameter becomes too large. Also,
As the outer diameter increases, there arise problems that the bending resonance frequency decreases and the weight increases. For this reason, it is necessary to limit the thickness of the reinforcing winding layer 1d for reinforcing the end 1b to a range of 1.2 to 2.0 times the thickness of the other portion 1c. Further, it is preferable that the boundary between the reinforcing winding layer 1d and the other portion 1c has a taper 1e as shown in FIG. 1 instead of an apparent step structure. This is because the occurrence of local stress concentration can be prevented.
【００１８】一方、円筒体１の端部１ｂに接続するヨー
ク２は、その接続端２ａの外周面に、軸方向に延びてい
る切込み歯２ｂが設けられている。この切込み歯２ｂ
は、図１のII−II線に沿う断面図で示したように、その
先端が鋭利な歯であることが好ましい。そして、この切
込み歯２ｂにおける歯先円の直径Ｄｙは、円筒体１の端
部１ｂの内径Ｄよりも大径になっている。On the other hand, the yoke 2 connected to the end 1b of the cylindrical body 1 is provided with cutting teeth 2b extending in the axial direction on the outer peripheral surface of the connection end 2a. This cutting tooth 2b
As shown in the sectional view along the line II-II in FIG. 1, it is preferable that the tip is a sharp tooth. The diameter Dy of the tip circle of the cutting teeth 2b is larger than the inner diameter D of the end 1b of the cylindrical body 1.
【００１９】この場合、ＤｙとＤとの差は、端部１ｂの
肉厚や端部１ｂの円周方向弾性率の値によっても変わっ
てくるが、その値は、０.１〜０.６mmの範囲内に設定さ
れる。ＤｙとＤとの差が０.１mm未満の場合には、ヨー
ク２の接続端２ａを円筒体１の管口１ａから端部１ｂに
圧入したときに、切込み歯２ｂによって端部１ｂの内壁
１ｆに刻設される刻み目の深さは浅くなり、そのため、
切込み歯２ｂと刻み目との噛み合いが不充分で、両者間
で高い接続強度が得られず、プロペラシャフトとして求
められる充分に大きな破壊強度が得られないようにな
る。また、ＤｙとＤの差が０.６mmより大きい場合は、
ヨーク２の圧入に要する荷重は増大するので圧入装置が
大型化するとともに、円筒体１の端部１ｂの強度が低い
時には、その端部１ｂ自体が破壊するという問題を引き
起こしてしまう。In this case, the difference between Dy and D also depends on the thickness of the end portion 1b and the value of the elastic modulus in the circumferential direction of the end portion 1b, but the value is between 0.1 and 0.6 mm. Set in the range
It is . When the difference between Dy and D is less than 0.1 mm, when the connection end 2a of the yoke 2 is pressed into the end 1b from the mouth 1a of the cylindrical body 1, the inner wall 1f of the end 1b is formed by the cutting teeth 2b. The depth of the notch that is engraved on the shallower,
The incision between the notch 2b and the notch is insufficient, so that a high connection strength cannot be obtained between the two and a sufficiently high breaking strength required for a propeller shaft cannot be obtained. If the difference between Dy and D is larger than 0.6 mm,
Since the load required for press-fitting the yoke 2 increases, the press-fitting device becomes large, and when the strength of the end 1b of the cylindrical body 1 is low, the end 1b itself is broken.
【００２０】上記した円筒体１の管口１ａからヨーク２
の接続端２ａを圧入し、接続端２ａの切込み歯２ｂで円
筒体の端部１ｂの内壁１ｆに刻み目を刻設しながら、切
込み歯２ｂを円筒体の端部１ｂの内壁１ｆに喰い込ませ
て両者を噛み合わせることによって、円筒体１とヨーク
２とが相対回転しないように接続して、本発明のプロペ
ラシャフトが製造される。The yoke 2 extends from the opening 1a of the cylindrical body 1
Is cut into the inner wall 1f of the end 1b of the cylindrical body with the notch 2b of the connecting end 2a, and the notch 2b is cut into the inner wall 1f of the end 1b of the cylindrical body. Thus, the cylindrical body 1 and the yoke 2 are connected so as not to rotate relative to each other, and the propeller shaft of the present invention is manufactured.
【００２１】この場合、ヨーク２の接続端２ａの圧入の
長さ（圧入長）は、円筒体１の端部１ｂの内径Ｄの０.
５〜１.０倍に設定される。この圧入長がＤの０.５倍値
より短い場合は、両者の接続部における強度がプロペラ
シャフトに求められる破壊強度よりも低くなり、またＤ
の１.０倍値より長くなると、必要とされる破壊強度を
大幅に上まわって無駄であると同時に、重量増、製造コ
スト増などの問題が生じてくるからである。In this case, the press-fit length (press-fit length) of the connection end 2a of the yoke 2 is equal to 0.1 mm of the inner diameter D of the end 1b of the cylindrical body 1.
It is set to 5 to 1.0 times. When the press-fit length is shorter than 0.5 times the value of D, the strength at the connection between the two becomes lower than the breaking strength required for the propeller shaft, and
If the value is longer than 1.0 times the required breaking strength, the required breaking strength is greatly exceeded, which is wasteful and, at the same time, causes problems such as an increase in weight and an increase in manufacturing cost.
【００２２】なお、ヨーク２の接続端２ａに少しテーパ
ーをつけておいてもよい。ヨーク２を円筒体１の端部１
ｂの内側に圧入するときに、ヨーク２の圧入が円滑に行
えるようになるからである。また、ヨーク２を圧入する
ときに、円筒体１の端部の内壁１ｆまたはヨーク２の接
続端２ａの外周面に接着剤などを塗布しておくと、機械
的結合と接着剤による結合との両方が併用できる。The connecting end 2a of the yoke 2 may be slightly tapered. The yoke 2 is connected to the end 1 of the cylindrical body 1.
This is because the press-fitting of the yoke 2 can be performed smoothly when the press-fitting is performed inside the b. When the yoke 2 is press-fitted, if an adhesive or the like is applied to the inner wall 1f of the end of the cylindrical body 1 or the outer peripheral surface of the connection end 2a of the yoke 2, the mechanical connection and the connection by the adhesive can be achieved. Both can be used together.
【００２３】[0023]
実施例１ フィラメントワインダーに直径５5.５mmのマンドレルを
セットし、ここに、東レ株式会社製炭素繊維“トレカ”
Ｔ３００の糸束（６０００フィラメント）４本を引き揃
え、エポキシ樹脂を含浸した状態で給糸した。Example 1 A mandrel having a diameter of 55.5 mm was set on a filament winder, and a carbon fiber “Torayca” manufactured by Toray Industries, Inc. was set here.
Four T300 yarn bundles (6000 filaments) were aligned and supplied while being impregnated with an epoxy resin.
【００２４】繊維配列は、最初はマンドレルの軸方向に
対し１５°の巻き角度で８層の強化繊維の内層を形成
し、ついで、両端部のみ、軸方向に対し８８°の巻き角
度で６層の補強巻層を形成した。全体を加熱炉内で回転
加熱することにより、エポキシ樹脂を硬化し、ついで、
マンドレルを抜きとって図１で示したような円筒体１を
得た。The fiber arrangement initially forms an inner layer of eight layers of reinforcing fibers at a winding angle of 15 ° to the axial direction of the mandrel, then only at both ends, six layers at a winding angle of 88 ° to the axial direction. Was formed. By rotating and heating the whole in a heating furnace, the epoxy resin is cured, and then
By removing the mandrel, a cylindrical body 1 as shown in FIG. 1 was obtained.
【００２５】この円筒体１の内径Ｄは５5.５mm，端部１
ｂの外径は６４mmであり、内層１ｃの肉厚は2.２５mm，
補強巻層１ｄの厚みは2.０mmであった。また、端部１ｂ
における円周方向弾性率は６ton/mm2 であった。一方、
ヨークとして、図１で示したようなユニバーサルジョイ
ント用の鉄製ヨークを用意した。The inner diameter D of the cylindrical body 1 is 55.5 mm,
The outer diameter of b is 64 mm, the thickness of the inner layer 1c is 2.25 mm,
The thickness of the reinforcing winding layer 1d was 2.0 mm. Also, the end 1b
Was 6 ton / mm 2 in the circumferential direction. on the other hand,
As a yoke, an iron yoke for a universal joint as shown in FIG. 1 was prepared.
【００２６】このヨーク２の接続端２ａの外周面に、歯
先円の直径Ｄｙが５5.９４mmの切込み歯２ｂを加工し
た。このヨークの接続端２ａを、円筒体１の管口１ａか
ら端部１ｂの内側に圧入した。圧入長は５０mmとした。
端部１ｂの内壁１ｆには、ヨーク２の接続端２ａの切込
み歯２ｂによって、深さ0.２２mmの刻み目が形成されて
両者が噛み合い、ヨーク２と円筒体１が接続した。On the outer peripheral surface of the connecting end 2a of the yoke 2, a cutting tooth 2b having a tip circle diameter Dy of 5.59 mm was machined. The connection end 2a of this yoke was pressed into the inside of the end 1b from the mouth 1a of the cylindrical body 1. The press-fit length was 50 mm.
A notch having a depth of 0.22 mm was formed on the inner wall 1f of the end portion 1b by the cutting teeth 2b of the connection end 2a of the yoke 2, and the two meshed to connect the yoke 2 and the cylindrical body 1.
【００２７】この接続部の静的ねじり破壊試験を行った
ところ、ねじり破壊トルクは３５０Kg・ｍであり、充
分、車輌用のプロペラシャフトとして使用できることが
確認された。When a static torsional fracture test was performed on this connection portion, the torsional fracture torque was 350 kg · m, and it was confirmed that the joint can be sufficiently used as a propeller shaft for vehicles.
【００２８】[0028]
【発明の効果】以上の説明で明らかなように、本発明方
法によれば、繊維強化プラスチックからなる円筒体とヨ
ークを強固に接続することができ、得られた接続部材
は、車輌用プロペラシャフトとして充分使用できるもの
である。このことは、円筒体の端部の肉厚を他の部分の
肉厚の１.２〜２.０倍にして円筒体の端部における円周
方向弾性率が高くしたり、また、ヨークの切込み歯の歯
先円と円筒体の端部との差を０.１〜０.６mmと設定した
り、更には、ヨークの円筒体の端部に対する圧入長を円
筒体の端部の内径の０.５〜１.０倍に設定したので、そ
の端部の内径は変化せず、切込み歯による端部内壁への
刻み目の刻設が充分満足する状態で形成されるので、切
込み歯と刻み目の噛合いは良好になり、端部の軸方向へ
の緊締力も発生して、両者が強固に接続されるからであ
る。As is apparent from the above description, according to the method of the present invention, the cylinder made of fiber reinforced plastic and the yoke can be firmly connected, and the connection member obtained is a propeller shaft for a vehicle. It can be used sufficiently as This means that the wall thickness at the end of the cylinder
1.2 to 2.0 times the wall thickness to increase the elastic modulus in the circumferential direction at the end of the cylindrical body, or the incisor teeth of the yoke
The difference between the tip and the end of the cylinder was set to 0.1 to 0.6 mm.
And the press-fit length of the yoke to the end of the cylinder
0.5 to 1.0 times the inner diameter of the end of the cylindrical body, so that the inner diameter of the end does not change and is formed in a state in which the notch on the inner wall of the end by the cutting teeth is sufficiently satisfied. As a result, the engagement between the cutting teeth and the notches is improved, and a tightening force is generated in the axial direction at the ends, so that the two are firmly connected.
【００２９】また、金属製の支持環を接続部の外側に配
することも不要になるので、全体として軽量になる。Further, since it is not necessary to dispose a metal support ring outside the connecting portion, the weight is reduced as a whole.
【図１】接続する前における円筒体とヨークとの位置関
係を示す部分断面図である。FIG. 1 is a partial sectional view showing a positional relationship between a cylindrical body and a yoke before connection.
【図２】図１のII−II線に沿う断面図である。FIG. 2 is a sectional view taken along the line II-II in FIG.
１ 繊維強化プラスチックからなる円筒体 １ａ 円筒体１の管口 １ｂ 円筒体１の端部 １ｃ 端部１ｂ以外の部分 １ｄ 繊維強化プラスチックからなる周方向補強巻層 １ｅ 補強巻層１ｄのテーパー １ｆ 端部１ｂの内壁 ２ ヨーク ２ａ ヨーク２の接続端 ２ｂ 切込み歯 DESCRIPTION OF SYMBOLS 1 Cylindrical body made of fiber reinforced plastic 1a Port opening of cylindrical body 1 1b End of cylindrical body 1 1c Other than end 1b 1d Circumferential reinforcing layer 1e made of fiber reinforced plastic 1e Taper of reinforcing winding layer 1d 1f end 1b Inner wall 2 Yoke 2a Connection end of yoke 2 2b Cutting teeth
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B60K 17/00 B60K 17/22 B60K 17/30 F16C 3/02 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) B60K 17/00 B60K 17/22 B60K 17/30 F16C 3/02
Claims (6)
端部に強化繊維による周方向補強巻層を含んでいる円筒
体の前記端部の内側に、外周面に、軸方向に延び、か
つ、歯先円の直径が前記円筒体の前記端部の内径よりも
大きい切込み歯を有するヨークを圧入し、前記切込み歯
で前記円筒体の前記端部の内壁に刻み目を刻設しなが
ら、前記切込み歯を、前記端部の前記内壁に喰い込ませ
ることによって、前記円筒体と前記ヨークとを相対回転
しないように接続するプロペラシャフトの製造方法であ
って、 前記円筒体は、端部の肉厚が他の部分の肉厚の１.２〜
２.０倍であることを特徴とする、プロペラシャフトの
製造方法。 1. It is made of fiber reinforced plastic, and
Inside the end of the cylindrical body including the circumferential reinforcing winding layer of the reinforcing fiber at the end, on the outer peripheral surface, extending in the axial direction, and the diameter of the addendum circle of the end of the cylindrical body is Press-fitting a yoke having cutting teeth larger than the inner diameter, and cutting the cutting teeth into the inner wall of the end while notching the inner wall of the end of the cylindrical body with the cutting teeth. A method for manufacturing a propeller shaft for connecting the cylindrical body and the yoke so as not to rotate relative to each other.
Therefore , in the cylindrical body, the thickness of the end portion is 1.2 to 1.2 of the thickness of the other portion.
2.0 times that of the propeller shaft
Production method.
対して８０〜９０°の角度で配列され、円筒体の端部の
周方向弾性率を２〜１０ton／mm2にする強化繊維を含ん
でいる、請求項１のプロペラシャフトの製造方法。2. A reinforcing winding layer of a cylindrical body is arranged at an angle of 80 to 90 ° with respect to an axial direction of the cylindrical body, and a circumferential elastic modulus at an end of the cylindrical body is 2 to 10 ton / mm 2 . The method for manufacturing a propeller shaft according to claim 1, wherein the propeller shaft includes a reinforcing fiber.
端部に強化繊維による周方向補強巻層を含んでいる円筒
体の前記端部の内側に、外周面に、軸方向に延び、か
つ、歯先円の直径が前記円筒体の前記端部の内径よりも
大きい切込み歯を有するヨークを圧入し、前記切込み歯
で前記円筒体の前記端部の内壁に刻み目を刻設しなが
ら、前記切込み歯を、前記端部の前記内壁に喰い込ませ
ることによって、前記円筒体と前記ヨークとを相対回転
しないように接続するプロペラシャフトの製造方法であ
って、 前記円筒体は、前記切込み歯の歯先円の直径と円筒体の
端部との差が０.１〜０.６mmであることを特徴とする、
プロペラシャフトの製造方法。3. It is made of fiber reinforced plastic, and
Cylinder containing a circumferentially reinforced winding layer with reinforcing fibers at the ends
Extending axially, inside said end of the body, on the outer peripheral surface,
The diameter of the addendum circle is larger than the inner diameter of the end of the cylindrical body.
A yoke having a large incision is pressed into the incision,
While notching a notch on the inner wall of the end of the cylindrical body with
Then, the cutting teeth are cut into the inner wall of the end portion.
Relative rotation of the cylindrical body and the yoke
The method of manufacturing a propeller shaft to be connected
Thus, the cylindrical body, the diameter of the tip circle of the cutting teeth and the cylindrical body
Characterized in that the difference from the end is 0.1 to 0.6 mm,
Manufacturing method of propeller shaft.
対して８０〜９０°の角度で配列され、円筒体の端部の
周方向弾性率を２〜１０ton／mm 2 にする強化繊維を含ん
でいる、請求項３のプロペラシャフトの製造方法。4. The reinforcing winding layer of the cylindrical body is formed in the axial direction of the cylindrical body.
Arranged at an angle of 80 to 90 ° with respect to the end of the cylindrical body.
Includes reinforcing fibers with a circumferential elastic modulus of 2 to 10 ton / mm2
The method for producing a propeller shaft according to claim 3 , wherein
端部に強化繊維による周方向補強巻層を含んでいる円筒
体の前記端部の内側に、外周面に、軸方向に延び、か
つ、歯先円の直径が前記円筒体の前記端部の内径よりも
大きい切込み歯を有するヨークを圧入し、前記切込み歯
で前記円筒体の前記端部の内壁に刻み目を刻 設しなが
ら、前記切込み歯を、前記端部の前記内壁に喰い込ませ
ることによって、前記円筒体と前記ヨークとを相対回転
しないように接続するプロペラシャフトの製造方法であ
って、 前記円筒体は、前記円筒体の端部に対する圧入長が、円
筒体の端部の内径の０.５〜１.０倍であることを特徴と
する、 プロペラシャフトの製造方法。5. A fiber reinforced plastic, and
Cylinder containing a circumferentially reinforced winding layer with reinforcing fibers at the ends
Extending axially, inside said end of the body, on the outer peripheral surface,
The diameter of the addendum circle is larger than the inner diameter of the end of the cylindrical body.
A yoke having a large incision is pressed into the incision,
In notch the engraving Shinano inner wall of the end portion of the cylindrical body
Then, the cutting teeth are cut into the inner wall of the end portion.
Relative rotation of the cylindrical body and the yoke
The method of manufacturing a propeller shaft to be connected
Thus, the cylindrical body has a press-fit length with respect to an end of the cylindrical body,
0.5 to 1.0 times the inner diameter of the end of the cylinder
To manufacture a propeller shaft.
対して８０〜９０°の角度で配列され、円筒体の端部の
周方向弾性率を２〜１０ton／mm 2 にする強化繊維を含ん
でいる、請求項５のプロペラシャフトの製造方法。 6. The reinforcing winding layer of the cylindrical body is formed in the axial direction of the cylindrical body.
Arranged at an angle of 80 to 90 ° with respect to the end of the cylindrical body.
Includes reinforcing fibers with a circumferential elastic modulus of 2 to 10 ton / mm2
The method for manufacturing a propeller shaft according to claim 5, wherein
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30748691A JP3173075B2 (en) | 1991-11-22 | 1991-11-22 | Manufacturing method of propeller shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30748691A JP3173075B2 (en) | 1991-11-22 | 1991-11-22 | Manufacturing method of propeller shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05139170A JPH05139170A (en) | 1993-06-08 |
| JP3173075B2 true JP3173075B2 (en) | 2001-06-04 |
Family
ID=17969672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30748691A Expired - Lifetime JP3173075B2 (en) | 1991-11-22 | 1991-11-22 | Manufacturing method of propeller shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3173075B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003004060A (en) | 2001-06-21 | 2003-01-08 | Toyota Industries Corp | Coupling and power transmission shaft and method of manufacturing coupling |
| JP4998023B2 (en) * | 2007-03-09 | 2012-08-15 | トヨタ自動車株式会社 | Shrink fit fastening structure of gas turbine |
| GB201704898D0 (en) * | 2017-03-28 | 2017-05-10 | Lentus Composites Ltd | Drive shaft |
| DE102017208424A1 (en) * | 2017-05-18 | 2018-11-22 | Rolls-Royce Deutschland Ltd & Co Kg | Shaft and method for producing a shaft |
| KR101999277B1 (en) * | 2017-09-18 | 2019-07-11 | 효림산업 주식회사 | Cfrp propeller shafts for vehicle |
| JP7217587B2 (en) * | 2017-12-27 | 2023-02-03 | Ntn株式会社 | power transmission shaft |
-
1991
- 1991-11-22 JP JP30748691A patent/JP3173075B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05139170A (en) | 1993-06-08 |
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