JPH0972386A - Balancing method for power transmission shaft and power transmission shaft - Google Patents
Balancing method for power transmission shaft and power transmission shaftInfo
- Publication number
- JPH0972386A JPH0972386A JP22946695A JP22946695A JPH0972386A JP H0972386 A JPH0972386 A JP H0972386A JP 22946695 A JP22946695 A JP 22946695A JP 22946695 A JP22946695 A JP 22946695A JP H0972386 A JPH0972386 A JP H0972386A
- Authority
- JP
- Japan
- Prior art keywords
- balance
- joint
- power transmission
- transmission shaft
- constant velocity
- 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.)
- Granted
Links
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Motor Power Transmission Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は動力伝達軸のバラン
ス取り方法及び動力伝達軸に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power transmission shaft balancing method and a power transmission shaft.
【０００２】[0002]
【従来の技術】例えば車両の動力伝達軸は、軸部材の両
端に等速自在継手を取付けてなり、組立後に回転バラン
スが取られる。従来、例えば鋳鉄などのように溶接が困
難な材料を使用した動力伝達軸の回転バランスを取るた
め、実開平６−１４５８９号公報「駆動軸」が提案され
ている。2. Description of the Related Art For example, a power transmission shaft of a vehicle has constant velocity universal joints attached to both ends of a shaft member, and balances rotation after assembly. Conventionally, in order to balance the rotation of a power transmission shaft using a material that is difficult to weld, such as cast iron, for example, Japanese Utility Model Laid-Open No. 6-14589, “Drive Shaft” has been proposed.
【０００３】上記技術は、同公報の図１に示されている
ように、駆動軸２の外周面に断面が奥広がりで台形状の
環状溝４を設け、この環状溝４の所定の位置にアンバラ
ンス量に応じて山形のバランスウェイト５を挿入し、こ
のバランスウェイト５を平坦に押し潰すことにより環状
溝４に係止して、回転バランスを取るようになってい
る。このような構成にすることによって、駆動軸２が溶
接困難な鋳鉄などで形成されていても、バランスウェイ
ト５を簡単に取付けできることを特徴としている。In the above technique, as shown in FIG. 1 of the publication, an annular groove 4 having a trapezoidal cross section is provided on the outer peripheral surface of the drive shaft 2, and the annular groove 4 is provided at a predetermined position. A chevron-shaped balance weight 5 is inserted according to the amount of unbalance, and the balance weight 5 is flatly crushed to be locked in the annular groove 4 to achieve rotational balance. With such a configuration, the balance weight 5 can be easily attached even if the drive shaft 2 is formed of cast iron or the like that is difficult to weld.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記技
術では、バランスウェイト５を取付ける環状溝４が円周
方向に連続しており、しかもバランスウェイト５の円周
方向の位置規制手段が施されていないので、何らかの原
因でバランスウェイト５に円周方向の大きな力が加わっ
たとき、バランスウェイト５が環状溝４内で円周方向に
位置ずれしてしまい、調整済の回転バランスが崩れてし
まうおそれがある。However, in the above technique, the annular groove 4 for mounting the balance weight 5 is continuous in the circumferential direction, and the circumferential position regulating means of the balance weight 5 is not provided. Therefore, when a large force in the circumferential direction is applied to the balance weight 5 for some reason, the balance weight 5 may be displaced in the circumferential direction in the annular groove 4, and the adjusted rotational balance may be lost. is there.
【０００５】また、バランスウェイト５を取付けるとき
に、バランスウェイト５を平坦に押し潰さなければなら
ないので、取付け作業が面倒で手間がかかる。更に、一
旦調整した回転バランスを再調整するときには、環状溝
４内に押し潰されているバランスウェイト５を上側に折
曲げて取外さなければならないから、再調整作業に手間
がかかる。そこで本発明の目的は、溶接困難な材質でも
バランスピースを簡単に取付けることが可能であり、ま
た、取付けたバランスピースが位置ずれするのを防止す
ることができ、更にバランスピースの取付け作業及び再
調整作業が容易な技術を提供することにある。Further, since the balance weight 5 must be flatly crushed when the balance weight 5 is mounted, the mounting work is troublesome and time-consuming. Furthermore, when the rotational balance once adjusted is readjusted, the balance weight 5 crushed in the annular groove 4 has to be bent upward and removed, which makes the readjustment work troublesome. Therefore, an object of the present invention is to easily attach a balance piece even with a material that is difficult to weld, and to prevent the attached balance piece from being displaced. It is to provide a technology that facilitates adjustment work.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
に本発明の請求項１は、等速自在継手に環状のバランス
調整体を付設し、このバランス調整体の外周面に軸方向
に延び且つ両端又は一端が開放された底広がり溝を円周
方向に断続的に設け、この底広がり溝にアンバランス量
に応じてバランスピースを挿入して係止することによ
り、バランス調整することを特徴とする。底広がり溝の
円周方向の側面によってバランスピースの円周方向の位
置規制が行なわれる。In order to solve the above-mentioned problems, the first aspect of the present invention is to attach an annular balance adjusting body to a constant velocity universal joint, and extend axially in the outer peripheral surface of the balance adjusting body. In addition, the bottom spreading groove whose both ends or one end is open is intermittently provided in the circumferential direction, and the balance piece is adjusted by inserting and locking the balance piece according to the unbalance amount in the bottom spreading groove. And The circumferential side face of the bottom spreading groove regulates the circumferential position of the balance piece.
【０００７】請求項２は、前記バランス調整体を前記ジ
ョイントに一体形成したことを特徴とする。バランス調
整体を等速自在継手と別体で設ける必要がなくなる。According to a second aspect of the present invention, the balance adjusting body is formed integrally with the joint. It is not necessary to provide the balance adjusting body separately from the constant velocity universal joint.
【０００８】請求項３は、等速自在継手に環状のバラン
ス調整体を付設し、このバランス調整体の外周面に軸方
向に延び且つ両端又は一端が開放された底広がり溝を円
周方向に断続的に設けたことを特徴とする。底広がり溝
の開放端からバランスピースを挿入して係止することが
できるので、バランスピースの取付け及び取外し作業が
容易になる。According to a third aspect of the present invention, an annular balance adjusting body is attached to the constant velocity universal joint, and a bottom spreading groove extending in the axial direction and having both ends or one end opened is provided in the circumferential direction on the outer peripheral surface of the balance adjusting body. It is characterized by being provided intermittently. Since the balance piece can be inserted and locked from the open end of the bottom spreading groove, the work of attaching and removing the balance piece becomes easy.
【０００９】請求項４は、前記バランス調整体を前記ジ
ョイントに一体形成したことを特徴とする。負荷が小さ
な環状体を例えば焼結体で形成することができる。According to a fourth aspect of the present invention, the balance adjusting body is integrally formed with the joint. The annular body having a small load can be formed of, for example, a sintered body.
【００１０】[0010]
【発明の実施の形態】本発明の実施の形態を添付図に基
づいて以下に説明する。なお、図面は符号の向きに見る
ものとする。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals.
【００１１】図１は本発明に係る動力伝達軸の断面図で
ある。なお、同図は軸部材の左側の端部と、これに取付
ける等速自在継手の構成を示し、実際には軸部材の右端
部にもこれと同様な等速自在継手を取付ける。FIG. 1 is a sectional view of a power transmission shaft according to the present invention. The figure shows the structure of the left end portion of the shaft member and the constant velocity universal joint attached thereto. In practice, the same constant velocity universal joint is also attached to the right end portion of the shaft member.
【００１２】この動力伝達軸１は、例えばＦＲＰ（繊維
強化プラスチック）製の軸部材１１と、軸部材１１の両
端に取付ける等速自在継手１２とからなる。軸部材１１
は両端に第１嵌合部１３（片側のみ図示）を有する筒状
成形体であり、第１嵌合部１３に等速自在継手１２を嵌
合する。The power transmission shaft 1 comprises a shaft member 11 made of, for example, FRP (fiber reinforced plastic), and constant velocity universal joints 12 attached to both ends of the shaft member 11. Shaft member 11
Is a tubular molded body having first fitting portions 13 (only one side is shown) at both ends, and the constant velocity universal joint 12 is fitted into the first fitting portions 13.
【００１３】等速自在継手１２は、軸部材１１を取付け
るためのジョイント（外輪とも呼称される）１４と、ジ
ョイント１４の先端に取付けるブーツアダプタ１５と、
等速自在継手１２内に塵埃などが入るのを防止するため
ブーツアダプタ１５の先端に取付けるゴム製のブーツ１
６と、ジョイント１４の凹部１７内に部分的に取付ける
ボール１８と、ボール１８を保持するリテーナ１９と、
ジョイント１４と同心でボール１８の内側に取付ける内
輪２０と、カップリングの片方のフランジ２９を有し内
輪２０の内側に取付ける回転軸２１と、回転軸２１の抜
け止めをする止め輪２２とからなる。The constant velocity universal joint 12 includes a joint (also referred to as an outer ring) 14 for attaching the shaft member 11, a boot adapter 15 attached to the tip of the joint 14.
The rubber boot 1 attached to the tip of the boot adapter 15 in order to prevent dust and the like from entering the constant velocity universal joint 12.
6, a ball 18 that is partially mounted in the recess 17 of the joint 14, and a retainer 19 that holds the ball 18.
It is composed of an inner ring 20 which is concentric with the joint 14 and is mounted inside the ball 18, a rotary shaft 21 which has one flange 29 of the coupling and is mounted inside the inner ring 20, and a retaining ring 22 which prevents the rotary shaft 21 from coming off. .
【００１４】ブーツアダプタ１５は所定の肉厚の板材で
形成し、図左の先端からブーツ１６を取付ける係止部２
５と、係止部２５を所定の位置まで延すための延長部２
６と、ジョイント１４に嵌合するため径外方に広げられ
た第２嵌合部２７と、径内方に折り曲げられた段部２８
とを設ける。なお、ブーツ１６の先端には開口４０を設
け、回転軸２１の中間部には第１環状溝４１を設ける。The boot adapter 15 is formed of a plate material having a predetermined thickness, and the locking portion 2 for mounting the boot 16 from the tip on the left side of the drawing.
5 and an extension 2 for extending the locking portion 25 to a predetermined position
6, a second fitting portion 27 that is expanded radially outward to fit the joint 14, and a step portion 28 that is bent radially inward.
Are provided. An opening 40 is provided at the tip of the boot 16, and a first annular groove 41 is provided at the intermediate portion of the rotating shaft 21.
【００１５】図２は本発明に係るジョイントの第１実施
例の斜視図である。このジョイント１４の外周面には、
図右から順に軸部材１１（図１参照）の第１嵌合部１３
を嵌合するための第３嵌合部３０と、回転バランスを調
整するためのバランス調整部３１と、ブーツアダプタ１
５の段部２８を挿入する凹溝３２と、ブーツアダプタ１
５の第２嵌合部２７を嵌合する第４嵌合部３３と、第４
嵌合部３３の中間にＯリング３４を取付けるための第２
環状溝３５とを設ける。FIG. 2 is a perspective view of the first embodiment of the joint according to the present invention. On the outer peripheral surface of this joint 14,
The first fitting portion 13 of the shaft member 11 (see FIG. 1) in order from the right of the figure.
Third fitting section 30 for fitting the boot, a balance adjusting section 31 for adjusting the rotational balance, and the boot adapter 1
5, the recessed groove 32 into which the step 28 of 5 is inserted, and the boot adapter 1
5th 4th fitting part 33 which fits the 2nd fitting part 27, and 4th
Second for attaching the O-ring 34 in the middle of the fitting portion 33
And an annular groove 35.
【００１６】バランス調整部３１は、第３嵌合部３０及
び第４嵌合部３３より大径に形成し、軸方向に延びる複
数の底広がり溝３７…（…は複数を示す。以下同じ。）
を円周方向に断続的に設ける。なお、底広がり溝３７と
は蟻溝（dove-tail groove)と称する鳩尾状の断面の溝
が好適であり、、二つの部品を嵌め合せる場合などに用
いられるものである。また、本例では、この底広がり溝
３７…の第４嵌合部３３側の端部を開放すると共に、こ
の開放端側に第３環状溝３８を設ける。３６はバランス
ピース、３９はＣ形止め輪である。回転バランスの調整
方法については後述する。The balance adjusting portion 31 is formed to have a larger diameter than the third fitting portion 30 and the fourth fitting portion 33, and a plurality of bottom spreading grooves 37 ... (. )
Are provided intermittently in the circumferential direction. The bottom spreading groove 37 is preferably a dove-tail groove having a dove-tail cross section, and is used when two parts are fitted together. Further, in this example, the end portion of the bottom spreading groove 37 on the side of the fourth fitting portion 33 is opened, and the third annular groove 38 is provided on the open end side. 36 is a balance piece and 39 is a C-shaped retaining ring. The method of adjusting the rotation balance will be described later.
【００１７】以上に述べた動力伝達軸１の組立手順の一
例を次に説明する。図３は本発明に係る動力伝達軸の分
解図である。この動力伝達軸１は、軸部材１１の第１嵌
合部１３に、等速自在継手１２のジョイント１４の第３
嵌合部３０を嵌合する。第１嵌合部１３と第３嵌合部３
０は、接着することもできる。An example of the procedure for assembling the power transmission shaft 1 described above will be described below. FIG. 3 is an exploded view of the power transmission shaft according to the present invention. The power transmission shaft 1 includes a first fitting portion 13 of a shaft member 11 and a third joint 14 of a constant velocity universal joint 12.
The fitting part 30 is fitted. First fitting portion 13 and third fitting portion 3
0 can also be bonded.
【００１８】一方、ブーツアダプタ１５に取付けたブー
ツ１６の開口４０から回転軸２１の先端を差込み、回転
軸２１の先端に内輪２０、ボール１８、リテーナ１９を
取付け、内輪２０を止め輪２２で止めて、これらの部品
をジョイント１４の凹部１７に挿入する。次に、ジョイ
ント１４の第２環状溝３５にＯリング３４を挿入し、ブ
ーツアダプタ１５の基部端をジョイント１４の先端に挿
入して、ブーツアダプタ１５の第２嵌合部２７をジョイ
ント１４の第４嵌合部３３に嵌合する。On the other hand, the tip of the rotary shaft 21 is inserted from the opening 40 of the boot 16 attached to the boot adapter 15, the inner ring 20, the ball 18 and the retainer 19 are attached to the tip of the rotary shaft 21, and the inner ring 20 is stopped by the snap ring 22. Then, these parts are inserted into the recesses 17 of the joint 14. Next, the O-ring 34 is inserted into the second annular groove 35 of the joint 14, the base end of the boot adapter 15 is inserted into the tip of the joint 14, and the second fitting portion 27 of the boot adapter 15 is inserted into the joint 14 of the joint 14. 4 Fit into the fitting portion 33.
【００１９】そして、第２嵌合部２７の先端を内側に折
曲げて段部２８（図１参照）を形成し、これを凹部３２
に挿入してブーツ１６の開口４０を回転軸２１の第１環
状溝４１に取付ける。このようにして、軸部材１１に等
速自在継手１２を取付ける。なお、上記組立手順は一例
を示すもので、これに限定されるものではない。Then, the tip end of the second fitting portion 27 is bent inward to form a step portion 28 (see FIG. 1), which is formed into a recess 32.
And the opening 40 of the boot 16 is attached to the first annular groove 41 of the rotary shaft 21. In this way, the constant velocity universal joint 12 is attached to the shaft member 11. It should be noted that the above assembling procedure is merely an example, and the present invention is not limited to this.
【００２０】以上に述べた動力伝達軸のバランス調整方
法について次に説明する。この動力伝達軸１は回転軸で
あるから、重心が軸心にある必要があり、これがずれて
いるとアンバランスになり好ましくない。そこで、バラ
ンシングマシンでチェックし、図３ので示したように
アンバランス量に応じてジョイント１４の適宜な位置の
底広がり溝３７に 、バランスピース３６を挿入して係
止する。次に、で示したように第３環状溝３８にＣ形
止め輪３９を挿入し、バランスピース３６の抜け止めを
することによって、回転バランスを取ることができる。The balance adjusting method of the power transmission shaft described above will be described below. Since the power transmission shaft 1 is a rotating shaft, the center of gravity needs to be at the center of the shaft, and if it is deviated, it is unbalanced and not preferable. Therefore, the balance machine 36 checks the balance machine, and as shown in FIG. 3, the balance piece 36 is inserted and locked in the bottom spreading groove 37 at an appropriate position of the joint 14 according to the unbalance amount. Next, the rotation balance can be achieved by inserting the C-shaped retaining ring 39 into the third annular groove 38 to prevent the balance piece 36 from coming off, as shown in FIG.
【００２１】図４はバランスピースの第１実施例の断面
図である。このバランスピース３６は、底広がり溝３７
と同様に断面が下広がりで台形状の係止部４２と、係止
部４２の上側に設けた偏平状のウェイト部４３とからな
る。ウェイト部４３はジョイント１４の外周面から突出
させ、このウェイト部４３の重心４３ａと係止部４２の
重心４２ａを、ジョイント１４の回転中心から延びた同
一の直線４４上に配置する。FIG. 4 is a sectional view of the first embodiment of the balance piece. This balance piece 36 has a bottom spreading groove 37.
Similarly to the above, the trapezoidal locking portion 42 has a cross section that widens downward, and a flat weight portion 43 provided on the upper side of the locking portion 42. The weight portion 43 is projected from the outer peripheral surface of the joint 14, and the center of gravity 43a of the weight portion 43 and the center of gravity 42a of the locking portion 42 are arranged on the same straight line 44 extending from the rotation center of the joint 14.
【００２２】係止部４２の重心４２ａとウェイト部４３
の重心４３ａとの距離ｈは、アンバランス量に応じて適
宜変えることができる。すなわち、アンバランス量が小
さい場合は距離ｈを短くしてバランスピース３６の回転
モーメントを小さくし、アンバランス量が大きい場合は
距離ｈを長くして回転モーメントを大きくすることによ
って、アンバランス量との調整を図る。The center of gravity 42a of the locking portion 42 and the weight portion 43
The distance h from the center of gravity 43a can be appropriately changed according to the amount of unbalance. That is, when the amount of unbalance is small, the distance h is shortened to reduce the rotation moment of the balance piece 36, and when the amount of unbalance is large, the distance h is lengthened to increase the rotation moment. Adjust the.
【００２３】上述のように、この動力伝達軸１は、ジョ
イント１４の外周面の円周方向に断続的に底広がり溝３
７…を設けたので、ジョイント１４が例えば鋳鉄など溶
接困難な材料で形成する場合でも、アンバランス量に応
じて適宜な位置の底広がり溝３７にバランスピース３６
を挿入し、Ｃ形止め輪３９を第３環状溝３８に挿入する
だけでバランスピース３６を簡単且つ確実に取付けるこ
とができる。したがって、バランスピース３６の取付け
作業が容易になると共に、バランスピース３６を簡単に
取外すことができるので、一旦調整した回転バランスの
再調整作業が容易になる。As described above, the power transmission shaft 1 has the bottom spreading groove 3 intermittently in the circumferential direction of the outer peripheral surface of the joint 14.
7 are provided, even if the joint 14 is formed of a material that is difficult to weld, such as cast iron, the balance piece 36 is provided in the bottom spreading groove 37 at an appropriate position according to the unbalance amount.
The balance piece 36 can be simply and surely attached by simply inserting the C-shaped retaining ring 39 into the third annular groove 38 and inserting the C-shaped retaining ring 39 into the third annular groove 38. Therefore, the work of attaching the balance piece 36 becomes easy, and the balance piece 36 can be easily removed, so that the readjustment work of the rotational balance once adjusted becomes easy.
【００２４】また、底広がり溝３７の円周方向の側面に
よってバランスピース３６の円周方向の位置規制が行な
われるので、動力伝達軸１の回転中にバランスピース３
６に円周方向の大きな力がかかった場合でも位置ずれす
るのを防止でき、回転バランスが崩れるのを防止するこ
とができる。Further, since the position of the balance piece 36 in the circumferential direction is regulated by the circumferential side surface of the bottom spreading groove 37, the balance piece 3 is rotated while the power transmission shaft 1 is rotating.
Even if a large circumferential force is applied to 6, it is possible to prevent displacement and prevent the rotation balance from being lost.
【００２５】図５（ａ）〜（ｂ）は本発明に係る底広が
り溝の第２実施例の斜視図である。なお、図２と同一の
部分には同一の符号を付けた。この底広がり溝４７は、
（ａ）に示すように両端を開放し、第３嵌合部３０の反
対側の端部に第３環状溝３８を設ける。そして、回転バ
ランスを取る場合は、（ｂ）に示すようにアンバランス
量に応じて適宜な位置の底広がり溝４７にバランスピー
ス３６を挿入し、第３環状溝３８にＣ形止め輪３９を挿
入する。5 (a) and 5 (b) are perspective views of a second embodiment of the bottom spreading groove according to the present invention. The same parts as those in FIG. 2 are designated by the same reference numerals. This bottom spreading groove 47 is
As shown in (a), both ends are opened, and a third annular groove 38 is provided at the end opposite to the third fitting portion 30. Then, in order to balance the rotation, as shown in (b), the balance piece 36 is inserted into the bottom spreading groove 47 at an appropriate position according to the unbalance amount, and the C-shaped retaining ring 39 is inserted into the third annular groove 38. insert.
【００２６】このときには、ジョイント１４の第３嵌合
部３０に軸部材１１が嵌合されており、バランスピース
３６は軸部材１１とＣ形止め輪３９によって軸方向の位
置規制が行なわれる。この底広がり溝４７は軸方向の両
端を開放したので、例えばステンレス材を使用して鍛造
で形成する場合でも加工が容易になる。At this time, the shaft member 11 is fitted to the third fitting portion 30 of the joint 14, and the balance piece 36 is axially restricted by the shaft member 11 and the C-shaped retaining ring 39. Since the bottom widening groove 47 is open at both ends in the axial direction, the processing becomes easy even when it is formed by forging using a stainless material, for example.
【００２７】なお、上述の実施例では、両端を開放した
底広がり溝４７の片端部にだけ第３環状溝３８を設けた
が、底広がり溝４７の両端部に第３環状溝３８を設けて
Ｃ形止め輪３９を挿入し、バランスピース３６の軸方向
の位置規制をすることもできる。In the above embodiment, the third annular groove 38 is provided only at one end of the bottom spreading groove 47 whose both ends are open. However, the third annular groove 38 is provided at both ends of the bottom spreading groove 47. It is also possible to insert a C-shaped retaining ring 39 to regulate the position of the balance piece 36 in the axial direction.
【００２８】図６は本発明に係る等速自在継手のジョイ
ントの第２実施例を示す斜視図である。なお、図２と同
一の部分には同一の符号を付けた。このジョイント５０
は、本体５１と、本体５１に嵌合する環状のバランス調
整体５２とからなる。本体５１は、図２のジョイント１
４と同様に内部に凹部１７を設け、外周面の左端部に凹
溝３２、第４嵌合部３３、第２環状溝３５を設ける。ま
た、左端部には軸部材１１を嵌合する第３嵌合部３０を
設け、中間部には環状体５２を嵌合する第５嵌合部５３
を設ける。FIG. 6 is a perspective view showing a second embodiment of the joint of the constant velocity universal joint according to the present invention. The same parts as those in FIG. 2 are designated by the same reference numerals. This joint 50
Is composed of a main body 51 and an annular balance adjusting body 52 fitted into the main body 51. The main body 51 is the joint 1 of FIG.
Similar to 4, the concave portion 17 is provided inside, and the concave groove 32, the fourth fitting portion 33, and the second annular groove 35 are provided at the left end portion of the outer peripheral surface. Further, a third fitting portion 30 for fitting the shaft member 11 is provided at the left end portion, and a fifth fitting portion 53 for fitting the annular body 52 at the middle portion.
Is provided.
【００２９】一方、バランス調整体５２には、内部に本
体５１の第５嵌合部５３に嵌合する第６嵌合部５４を設
け、外周面には例えば両端が開放された底広がり溝４７
…と、第３環状溝３８を設ける。そして、バランス調整
体５２の第６嵌合部５４を本体５１の第５嵌合部５３に
嵌合して両者を一体化することにより、ジョイント５０
を形成する。On the other hand, the balance adjusting body 52 is provided internally with a sixth fitting portion 54 which fits into the fifth fitting portion 53 of the main body 51, and the outer peripheral surface has, for example, a bottom spreading groove 47 whose both ends are open.
, And a third annular groove 38 are provided. Then, the sixth fitting portion 54 of the balance adjusting body 52 is fitted to the fifth fitting portion 53 of the main body 51 to integrate the two, and thereby the joint 50
To form
【００３０】このジョイント５０は、本体５１とバラン
ス調整体５２とに分割し、バランス調整体５２に底広が
り溝４７…を設けたので、大きな負荷がかかる本体５１
を例えば鍛造可能な金属で形成し、一方、形状が複雑な
底広がり溝４７…を有すると共に、負荷が小さなバラン
ス調整体５２を焼結金属で形成することもできる。これ
によって、底広がり溝４７…を簡単に形成することがで
きる。バランス調整体５２は、ステンレス材などで形成
することもできる。The joint 50 is divided into a main body 51 and a balance adjusting body 52, and the balance adjusting body 52 is provided with bottom spreading grooves 47 ...
Can be formed of, for example, a forgeable metal, while the balance adjusting body 52 having a bottom spreading groove 47 having a complicated shape and a small load can be formed of a sintered metal. Thereby, the bottom spreading groove 47 ... Can be easily formed. The balance adjusting body 52 can also be formed of a stainless material or the like.
【００３１】図７はバランスピースの第２実施例を示す
断面図であり、図４と同一の部分には同一の符号を付け
た。このバランスピース４６は、図４のバランスピース
３６と同様な係止部４２と、係止部４２の上側に設けた
ウェイト部４８からなる。このウェイト部４８の重心４
８ａは、ジョイント１４の回転中心と係止部４２の重心
４２ａとを結んだ直線４４から、ジョイント１４の円周
方向に距離ｂだけずらした。FIG. 7 is a sectional view showing a second embodiment of the balance piece, and the same parts as those in FIG. 4 are designated by the same reference numerals. The balance piece 46 includes a locking portion 42 similar to the balance piece 36 of FIG. 4, and a weight portion 48 provided on the upper side of the locking portion 42. Center of gravity 4 of the weight portion 48
8a is displaced from the straight line 44 connecting the rotation center of the joint 14 and the center of gravity 42a of the locking portion 42 by a distance b in the circumferential direction of the joint 14.
【００３２】この第２実施例のバランスピース４６は、
係止部４２の重心４２ａに対してウェイト部４８の重心
４８ａを、円周方向に適宜な距離ｂだけずらすことによ
って、底広がり溝４７…をジョイント１４の円周方向に
断続的に設けたにも拘らず、バランスウェイトの重心を
円周方向に連続的に変化させることができるので、バラ
ンス調整の精度を上げることができる。The balance piece 46 of the second embodiment is
By shifting the center of gravity 48a of the weight portion 48 with respect to the center of gravity 42a of the locking portion 42 by an appropriate distance b in the circumferential direction, the bottom spreading grooves 47 ... Are intermittently provided in the circumferential direction of the joint 14. Nevertheless, since the center of gravity of the balance weight can be continuously changed in the circumferential direction, the accuracy of balance adjustment can be improved.
【００３３】図８（ａ），（ｂ）は本発明に係る底広が
り溝の変更例を示す図であり、底広がり溝３７，４７
は、軸方向にスライド可能で且つ径外方へ抜け止め可能
な作用をなす溝であるから、（ａ）に示す逆Ｔ形状の底
広がり溝３７，４７や（ｂ）に示す逆Ω形状の底広がり
溝３７，４７であってもよい。さらには、本実施例に示
した具体例（蟻溝、逆Ｔ溝、逆Ω溝）のほか、底辺が広
がった溝であれば断面形状は任意である。FIGS. 8A and 8B are views showing modified examples of the bottom spreading groove according to the present invention, in which the bottom spreading groove 37, 47 is shown.
Is a groove that is slidable in the axial direction and has a function of preventing radial disengagement. Therefore, the reverse T-shaped bottom spreading grooves 37 and 47 shown in (a) and the reverse Ω-shaped groove shown in (b). The bottom spreading grooves 37 and 47 may be used. Further, in addition to the specific examples shown in the present embodiment (a dovetail groove, an inverted T groove, an inverted Ω groove), any cross-sectional shape can be used as long as the groove has a wider base.
【００３４】なお、上述の実施例では、ＦＲＰ製の軸部
材１１を使用した場合について説明したが、本発明は金
属製の軸部材を使用した動力伝達軸にも適用することが
できる。In the above embodiment, the case where the shaft member 11 made of FRP is used has been described, but the present invention can also be applied to a power transmission shaft using a shaft member made of metal.
【００３５】[0035]
【発明の効果】本発明は上記構成により次の効果を発揮
する。請求項１は、等速自在継手に環状のバランス調整
体を付設し、このバランス調整体の外周面に軸方向に延
び且つ両端又は一端が開放された底広がり溝を円周方向
に断続的に設け、この底広がり溝にアンバランス量に応
じてバランスピースを挿入して係止することにより、バ
ランス調整するので、バランスピースが底広がり溝の円
周方向の側面で位置規制され、動力伝達軸の回転中にバ
ランスピースに円周方向の大きな力が加わっても位置ず
れするのを防止でき、回転バランスが崩れるのを防止す
ることができる。The present invention has the following effects due to the above configuration. According to a first aspect of the present invention, an annular balance adjusting body is attached to the constant velocity universal joint, and a bottom spreading groove that extends in the axial direction and has both ends or one end opened is intermittently provided in the circumferential direction on the outer peripheral surface of the balance adjusting body. Since the balance piece is provided and locked by inserting and locking the balance piece according to the amount of unbalance in the bottom spreading groove, the position of the balance piece is restricted by the circumferential side surface of the bottom spreading groove, and the power transmission shaft Even if a large circumferential force is applied to the balance piece during the rotation, the position shift can be prevented, and the rotation balance can be prevented from being lost.
【００３６】請求項２は、前記バランス調整体を前記ジ
ョイントに一体形成したので、バランス調整体を等速自
在継手と別体で設ける必要がなく、部品点数を削減する
ことができる。According to the second aspect, since the balance adjusting body is formed integrally with the joint, it is not necessary to provide the balance adjusting body separately from the constant velocity universal joint, and the number of parts can be reduced.
【００３７】請求項３は、等速自在継手に環状のバラン
ス調整体を付設し、このバランス調整体の外周面に軸方
向に延び且つ両端又は一端が開放された底広がり溝を円
周方向に断続的に設けたので、この底広がり溝にバラン
スピースを挿入して係止することにより、等速自在継手
が溶接困難な鋳鉄などで形成されている場合でも、バラ
ンスピースを簡単且つ確実に取付けることができると共
に、再調整時には簡単に取外すことができる。According to a third aspect of the present invention, an annular balance adjusting body is attached to the constant velocity universal joint, and a bottom spreading groove extending in the axial direction and having both ends or one end opened is formed in the circumferential direction on the outer peripheral surface of the balance adjusting body. Since it is provided intermittently, by inserting and locking the balance piece in this bottom spreading groove, even if the constant velocity universal joint is made of cast iron or the like that is difficult to weld, the balance piece can be attached easily and securely. In addition, it can be easily removed during readjustment.
【００３８】請求項４は、前記バランス調整体を前記ジ
ョイントに一体形成したので、例えば焼結金属でバラン
ス調整体を形成することにより形状が複雑な底広がり溝
でも容易に形成することができる。According to the present invention, since the balance adjusting body is formed integrally with the joint, it is possible to easily form a bottom spreading groove having a complicated shape by forming the balance adjusting body with, for example, a sintered metal.
【図１】本発明に係る動力伝達軸の断面図FIG. 1 is a sectional view of a power transmission shaft according to the present invention.
【図２】本発明に係る等速自在継手のジョイント及び底
広がり溝（第１実施例）の斜視図FIG. 2 is a perspective view of a joint and a bottom spreading groove (first embodiment) of a constant velocity universal joint according to the present invention.
【図３】本発明に係る動力伝達軸の分解図FIG. 3 is an exploded view of a power transmission shaft according to the present invention.
【図４】本発明に係るバランスピース（第１実施例）の
取付け状態を示す断面図FIG. 4 is a cross-sectional view showing a mounted state of a balance piece (first embodiment) according to the present invention.
【図５】本発明に係る底広がり溝（第２実施例）の斜視
図FIG. 5 is a perspective view of a bottom spreading groove (second embodiment) according to the present invention.
【図６】本発明に係るジョイント（第２実施例）の分解
図FIG. 6 is an exploded view of a joint (second embodiment) according to the present invention.
【図７】本発明に係るバランスピース（第２実施例）の
取付け状態を示す断面図FIG. 7 is a cross-sectional view showing a mounted state of a balance piece (second embodiment) according to the present invention.
【図８】本発明に係る底広がり溝の変更例を示す図FIG. 8 is a view showing a modified example of the bottom widening groove according to the present invention.
１…動力伝達軸、１１…軸部材、１２…等速自在継手、
１４，５０…ジョイント、３１…バランス調整部、３
７，４７…底広がり溝、３６，４６…バランスピース、
５１…本体、５２…バランス調整体。1 ... Power transmission shaft, 11 ... Shaft member, 12 ... Constant velocity universal joint,
14,50 ... Joint, 31 ... Balance adjusting part, 3
7, 47 ... bottom spreading groove, 36, 46 ... balance piece,
51 ... Main body, 52 ... Balance adjusting body.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 和田 伸二 埼玉県和光市中央１丁目４番１号 株式会 社本田技術研究所内 (72)発明者 飯泉 亨 埼玉県和光市中央１丁目４番１号 株式会 社本田技術研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinji Wada 1-4-1 Chuo, Wako-shi, Saitama Inside Honda R & D Co., Ltd. (72) Inventor Toru Iizumi 1-4-1 Wako-shi, Saitama Stock Company Honda Technical Research Institute
Claims (4)
らなる等速自在継手を取付けた動力伝達軸において、前
記等速自在継手に環状のバランス調整体を付設し、この
バランス調整体の外周面に軸方向に延び且つ両端又は一
端が開放された底広がり溝を円周方向に断続的に設け、
この底広がり溝にアンバランス量に応じてバランスピー
スを挿入して係止することにより、バランス調整するこ
とを特徴とする動力伝達軸のバランス取り方法。1. In a power transmission shaft having a constant velocity universal joint comprising a joint and a rotary shaft attached to an end of a shaft member, an annular balance adjusting body is attached to the constant velocity universal joint, and the balance adjusting body An outer peripheral surface is provided with a bottom spreading groove that extends in the axial direction and is open at both ends or one end, and is intermittently provided in the circumferential direction.
A balance adjustment method for a power transmission shaft, wherein balance pieces are adjusted by inserting and locking balance pieces according to the amount of unbalance in the bottom widening grooves.
一体形成したことを特徴とする請求項１記載の動力伝達
軸のバランス取り方法。2. The power transmission shaft balancing method according to claim 1, wherein the balance adjusting body is formed integrally with the joint.
らなる等速自在継手を取付けた動力伝達軸において、前
記等速自在継手に環状のバランス調整体を付設し、この
バランス調整体の外周面に軸方向に延び且つ両端又は一
端が開放された底広がり溝を円周方向に断続的に設けた
ことを特徴とする動力伝達軸。3. In a power transmission shaft having a constant velocity universal joint comprising a joint and a rotary shaft attached to an end of a shaft member, an annular balance adjusting body is attached to the constant velocity universal joint. A power transmission shaft characterized in that a bottom spreading groove extending in the axial direction and having both ends or one end open is provided intermittently in the circumferential direction on the outer peripheral surface.
一体形成したことを特徴とする請求項３記載の動力伝達
軸。4. The power transmission shaft according to claim 3, wherein the balance adjusting body is formed integrally with the joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22946695A JP3784433B2 (en) | 1995-09-06 | 1995-09-06 | Power transmission shaft balancing method and power transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22946695A JP3784433B2 (en) | 1995-09-06 | 1995-09-06 | Power transmission shaft balancing method and power transmission shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0972386A true JPH0972386A (en) | 1997-03-18 |
| JP3784433B2 JP3784433B2 (en) | 2006-06-14 |
Family
ID=16892644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22946695A Expired - Fee Related JP3784433B2 (en) | 1995-09-06 | 1995-09-06 | Power transmission shaft balancing method and power transmission shaft |
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| Country | Link |
|---|---|
| JP (1) | JP3784433B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8915165B2 (en) | 2012-08-22 | 2014-12-23 | Hyundai Motor Company | Balance adjustment device of rotating body and power delivery system using balance adjustment device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109002A (en) * | 2010-09-16 | 2011-06-29 | 杭州万向传动轴有限公司 | Novel adjustable dynamic balance transmission shaft |
-
1995
- 1995-09-06 JP JP22946695A patent/JP3784433B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8915165B2 (en) | 2012-08-22 | 2014-12-23 | Hyundai Motor Company | Balance adjustment device of rotating body and power delivery system using balance adjustment device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3784433B2 (en) | 2006-06-14 |
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