JPS63266331A - Unbalance correcting method for wheel - Google Patents
Unbalance correcting method for wheelInfo
- Publication number
- JPS63266331A JPS63266331A JP10011687A JP10011687A JPS63266331A JP S63266331 A JPS63266331 A JP S63266331A JP 10011687 A JP10011687 A JP 10011687A JP 10011687 A JP10011687 A JP 10011687A JP S63266331 A JPS63266331 A JP S63266331A
- Authority
- JP
- Japan
- Prior art keywords
- wheel
- unbalance
- weight
- amplitude
- displacement
- 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
- 238000000034 method Methods 0.000 title claims description 9
- 238000001514 detection method Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 23
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000003068 static effect Effects 0.000 description 6
- 239000000725 suspension Substances 0.000 description 5
- 238000003384 imaging method Methods 0.000 description 3
- RGJOEKWQDUBAIZ-IBOSZNHHSA-N CoASH Chemical compound O[C@@H]1[C@H](OP(O)(O)=O)[C@@H](COP(O)(=O)OP(O)(=O)OCC(C)(C)[C@@H](O)C(=O)NCCC(=O)NCCS)O[C@H]1N1C2=NC=NC(N)=C2N=C1 RGJOEKWQDUBAIZ-IBOSZNHHSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 208000018583 New-onset refractory status epilepticus Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Testing Of Balance (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、自動車等の車輪のアンバランスを修正する方
法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for correcting unbalance of wheels of an automobile or the like.
（従来の技術）
車輪がアンバランスであると、その回転中に上下方向、
前後方向、切れ角方向の振動を生ずることが知られてい
る。(Prior art) If a wheel is unbalanced, it will move up and down while rotating.
It is known that vibrations occur in the longitudinal direction and the direction of the turning angle.
一般的に、上下方向及び前後方向の振動は車輪の周方向
の重量アンバランス（静アンノ９ランス）に、又切れ角
方向の撮動は車輪の幅方向のｉｔアンノ々ランス（動ア
ンバランス）に起因すると考えられておシ、そこで本願
出願人は、先に％願昭６０−１４２６２７号に工り、車
体に懸架される車輪を回転ドラム上に載置して回転させ
た状態で車輪以外のばね下構成部材の上下方向、前後方
向、切れ角方向の３方向の振幅を検出し、上下方向及び
前後方向の振幅から靜アンバランス量と、切れ角方向の
振幅から勤アンバランス量とを求めて、これらアンバラ
ンス量に対応スるウェイトを車輪のリムの夫々のアンバ
ランス位置に取付けるようにしたアンノ々ランス修正方
法を提案した。In general, vibrations in the vertical and longitudinal directions are caused by weight imbalance in the circumferential direction of the wheel (static anno 9 lance), and imaging in the direction of turning angle is caused by an it unbalance in the width direction of the wheel (dynamic unbalance). This is thought to be caused by Detects the amplitude of the unsprung component in three directions: the vertical direction, the longitudinal direction, and the turning angle direction, and calculates the amount of quiet unbalance from the amplitude in the vertical direction and the longitudinal direction, and the amount of working unbalance from the amplitude in the turning angle direction. We proposed a method for correcting imbalances in which weights corresponding to these unbalance amounts are attached to each unbalance position on the wheel rim.
（発明が解決しようとする問題点）
然し、上記の方法によっても車輪のアンバランスは必ず
しも修正されず、再修正の必要を生することがままあつ
ｔｏ
本願発明者の解析の結果、その原因は以下の点にあるこ
とが判明した。(Problem to be Solved by the Invention) However, even with the method described above, the unbalance of the wheels is not necessarily corrected, and the need for re-correction still arises.As a result of the inventor's analysis, the cause is The following points were found.
即ち、ばね下構成部材の上下方向の振動には、懸架機構
のサスペンション機能及びタイヤのユニフオミテイが影
響し、上下方向の振幅と車輪の静アンノ々ランス量との
間に一義的な関係が成立せず、又切れ角方向の振動には
、静アンバランスに起因し九車輪の上下前後振動がジャ
イロ作用を媒体として影響すると共に、懸架機構が持つ
切り角方向のコンプライアンスが影響し、切れ角方向の
振幅と車輪の動アンバランス量との間にも一義的な関係
が成立しないのに、これら振幅に基いてウェイトを選択
している九めである。In other words, the vertical vibration of the unsprung component is affected by the suspension function of the suspension mechanism and the uniformity of the tires, and a unique relationship cannot be established between the vertical amplitude and the amount of static noise of the wheel. Furthermore, the vibration in the direction of the turning angle is affected by the vertical vibration of the nine wheels due to static imbalance using the gyroscopic action as a medium, as well as the compliance of the suspension mechanism in the direction of the turning angle. Even though there is no unambiguous relationship between the amplitude and the amount of dynamic unbalance of the wheels, weights are selected based on these amplitudes.
本発明は、以上の点に着目し、上記先願の問題点を解決
し几アンバランス修正方法を提供することをその目的と
する。The present invention has focused on the above points, and aims to solve the problems of the prior application and provide a method for correcting the imbalance.
ｃ問題点を解決するための手段）
本発明は、上記目的を達成すべく、車体に懸架される車
輪を回転ドラム上に載置して回転させた状態で車輪のア
ンバランスを検出し、この検出結果に基いてアンバラン
スを修正する方法において、車輪のアンバランスを車輪
以外のばね下構成部材の前後方向の振幅として検出し、
予め求めｔ前後方向の振幅とウェイト重量との関係から
振幅の検出値に対応する重量のウェイ）、トを選択し、
該ウェイトｔ−車輪のリムのアンパランス位置に取付け
ることを特徴とする。In order to achieve the above object, the present invention detects the unbalance of the wheels suspended on the vehicle body while the wheels are placed on a rotating drum and rotated. In the method of correcting unbalance based on the detection result, wheel unbalance is detected as an amplitude in the longitudinal direction of an unsprung component other than the wheel,
From the relationship between the amplitude in the longitudinal direction obtained in advance and the weight weight, select the weight way corresponding to the detected value of the amplitude,
The weight T is characterized by being attached to the unbalanced position of the rim of the wheel.
（作用）
ばね下構成部材の前後方向の振動は、上下方 向や
切れ角方向の撮動と異シ懸架機構からの影響は殆んど受
けず、車輪の静アンバランスが前後方向の振動としてダ
イレクトに現われる。(Function) The longitudinal vibration of the unsprung components is hardly affected by the vertical direction or turning angle direction and the different suspension mechanism, and the static unbalance of the wheel causes longitudinal vibration. appear directly.
従って、前後方向の振幅と車輪の靜アンバランス量との
間には一義的な関係が成立し、振幅に応じた重量のウェ
イトを取付けることで静アンバランスが修正され、靜ア
ンバランスに起因し友上下前後振動が抑制され、更に上
下前後振動によりジャイロ作用を媒体として生ずる切れ
角方向の振動も抑制される。Therefore, there is a unique relationship between the amplitude in the longitudinal direction and the amount of silent unbalance of the wheel, and by attaching a weight corresponding to the amplitude, the static unbalance is corrected, and the static unbalance caused by the silent unbalance is corrected. The vertical and longitudinal vibrations of the shaft are suppressed, and furthermore, the vibrations in the turning angle direction, which are caused by the vertical and longitudinal vibrations using the gyroscopic action as a medium, are also suppressed.
（実施例）
第１図乃至第３図を参照して、（１）は自動車の車体に
懸架される車輪ａｔ−載置する回転ドラム、（２）は車
輪ａに貼着した反射テープａ１により車輪（２）の回転
位相を検出する光電管から成る位相検出器、（３）はば
ね下横底部材たる例えばロアアームｂの前後方向の変位
を検出する光学式変位検出器を示し、該変位検出器（３
）は、上下前後左右の直交３軸方向に移動自在に設けら
れ、車輪ａを回転ドラム（１）に載置し友後、該変位検
出器（３）をロアアームｂの前面又は後面に対向する所
定の計測位置に移動して変位検出を行うようにし友。(Example) Referring to FIGS. 1 to 3, (1) is a rotating drum mounted on a wheel at suspended on the body of an automobile, and (2) is a reflective tape a1 attached to a wheel a. A phase detector consisting of a phototube that detects the rotational phase of the wheel (2), and (3) an optical displacement detector that detects the longitudinal displacement of the unsprung horizontal bottom member, for example, the lower arm b; (3
) is provided so as to be movable in three orthogonal axes directions of up, down, forward, left, and right, and when the wheel a is placed on a rotating drum (1), the displacement detector (3) is placed opposite the front or rear surface of the lower arm b. Move to a predetermined measurement position and perform displacement detection.
これを更に詳述するに、回転ドラム（１）の配置部内側
に機枠（４）を立設して、該機・枠（４）に゛シリンダ
（５ａ）によりガイドレール（５ｂ）に沿って上下動さ
れる第１テーブル（５）を支持させると共に、該第１テ
ーブル（５）上にシリンダ（６ａ）によりガイドレール
（６ｂ）に沿って前後動される第２テーブル（６）と、
該第２テーブル（６）上にハンドルＬ７Ｂ’付きのゼー
ルねじＬ７ｂ）により左右動される第３テーブル（７）
とを設けて、該第３テーブル（７）上の支持台（８）に
ロアアームｂの前面又は後面に当接するばね板（９）と
、該支持台（８）上のステー（８ａ）に該ばね板（９）
に対し前後方向に対向するように前記変位検出器（３）
とを取付けるものとし、該第３テーブル（７）を該ゼー
ルねじ（７ｈ）にエリ左右方向に位置調節した状態でロ
ックハンドル（７ｃ］により固定し、車輪ａを回転ドラ
ム（１）上に載置した後、第１テーブル（５）を定位置
に上昇させると共に、第２テーブル（６）をロアアーム
ｂに向って定位置に前進させて、該ばね板（９）をロア
アームｂの前面又は後面に圧接させ、該ばね板（９）が
ロアアームｂに弾接し友状態でこれと一体に前後方向に
振動されるようにし、変位検出器（３）にエリロアアー
ムｂの前後方向の変位を該ばね板（９）を介して検出す
るようにし友。該変位検出器（３）は、被測定物に光線
を照射する光源（３ａ）と、被測定物からの散乱光を結
像させる複数の受光素子を配列した結像部（３ｂ）とを
備え、該結像部（３ｂ）を光源ｒ３ａ３の光軸に対し斜
交させて、被測定物の変位を結像部（３ｂ）における輝
点位置の変化として検出するもので、従来公知でありそ
の詳細な説明は省略する。To explain this in more detail, a machine frame (4) is erected inside the arrangement part of the rotating drum (1), and a cylinder (5a) is attached to the machine frame (4) along the guide rail (5b). a second table (6) that supports a first table (5) that is moved up and down by a cylinder, and a second table (6) that is moved back and forth along a guide rail (6b) by a cylinder (6a) on the first table (5);
A third table (7) is mounted on the second table (6) and is moved left and right by a Zeel screw L7b with a handle L7B'.
A spring plate (9) that comes into contact with the front or rear surface of the lower arm b is provided on the support stand (8) on the third table (7), and a spring plate (9) that comes into contact with the stay (8a) on the support stand (8) is provided. Spring plate (9)
The displacement detector (3)
and the third table (7) is fixed to the Zeel screw (7h) with the lock handle (7c) adjusted in the horizontal direction, and the wheel a is placed on the rotating drum (1). After placing the spring plate (9) on the front or rear surface of the lower arm b, the first table (5) is raised to the regular position and the second table (6) is advanced toward the lower arm b to the regular position. The spring plate (9) is brought into pressure contact with the lower arm b so that it vibrates in the longitudinal direction together with the lower arm b, and the displacement detector (3) detects the longitudinal displacement of the lower arm b. The displacement detector (3) includes a light source (3a) that irradiates the object to be measured with a beam of light, and a plurality of light receivers that form an image of scattered light from the object to be measured. The imaging section (3b) is arranged obliquely to the optical axis of the light source r3a3, and the displacement of the object to be measured is determined by the bright spot position in the imaging section (3b). This is detected as a change in , and is conventionally known, so a detailed explanation thereof will be omitted.
車輪ａのアンバランス修正に際しては、予めロアアーム
ｂの前後方向の振幅りとウェイト重ｇｗとの関係を表す
第４図示の如きチューニングチャートを作成する。When correcting the unbalance of the wheel a, a tuning chart as shown in FIG. 4 is created in advance showing the relationship between the longitudinal amplitude of the lower arm b and the weight weight gw.
チューニングチャートの作成は、実車にバランス取りし
九車輪を懸架して、車輪のリムの所定の周方向位置にウ
ェイトを取付けた後、該車輪を回転ドラム（１）上で一
定速度で回転させ、位相検出器（２）により検出される
回転位相と、変位検出器（３）により検出されるロアア
ームｂの前後方向の変位とをツーペンレコーダで記録し
、これをウェイトの重量を変えて繰返し行い、各重量の
ウェイトについて変位の最大値から振幅を求め、これを
プロットすることで行う。The tuning chart is created by suspending nine balanced wheels on an actual vehicle, attaching weights to the rims of the wheels at predetermined positions in the circumferential direction, and then rotating the wheels at a constant speed on a rotating drum (1). The rotational phase detected by the phase detector (2) and the longitudinal displacement of the lower arm b detected by the displacement detector (3) are recorded with a two-pen recorder, and this is repeated by changing the weight of the weight. This is done by finding the amplitude from the maximum value of displacement for each weight and plotting it.
ところで、前後方向の変位が最大になる位相はウェイト
取付箇所が車軸を通る前後方向の水平線に合致したとき
であるがレコーダのタイムラグ等により記録紙上では、
ウェイト取付箇所が水平線に合致する位相になった後所
定の位相差を存して変位が最大となり、この位相差を補
正角Ｐとして求めておく。次に、被験車に懸架した車輪
ａを回転ドラム（１）上に載置して、上記と同一の速度
で車輪ａを回転させ、上記と同様にツーペンレコーダで
回転位相とロアアームｂの前後方向の変位とを記録する
。By the way, the phase where the displacement in the longitudinal direction is maximum is when the weight attachment point matches the horizontal line in the longitudinal direction passing through the axle, but due to the time lag of the recorder, etc., on the recording paper,
After the weight attachment point reaches a phase that matches the horizontal line, a predetermined phase difference exists and the displacement reaches its maximum, and this phase difference is determined as the correction angle P. Next, wheel a suspended on the test vehicle is placed on the rotating drum (1), wheel a is rotated at the same speed as above, and the two-pen recorder is used to record the rotation phase and the front and back of lower arm b. The displacement in the direction is recorded.
第５図のＸ線とｙｌｌＩＦｉ夫々回転位相と変位とを表
す線であり、車輪ａが１回転してこれに貼着し九反射テ
ープａｌが位相検出器（２）の前面を通過する度にＸ線
にパルス波形が現われ、このノＲルス波形の発生点から
変位検出器（３）に接近する方向の変位が最大となるｙ
？ＦＭのピーク点までの記録紙上の長さをＹ１パルス波
形の記録紙上の発生間隔をＸとすると、反射テープａｌ
の貼着箇所を００として、当該ピーク点の位相角２は、
となり、車輪ａのアンノ々ランス位置の位相角Ｑは、Ｚ
と前記補正角Ｐとから、次式
％式％
そして、ｙ線のピーク点における波高から振幅りを求め
、この振＠Ｌに対応する重量のウェイトｔチューニング
チャートを用いて選択し、このウェイトを車輪ａのリム
のアンバランス位置に取付ける、
第６図は、■〜■の８台の実験車の左右の前輪の修正前
と上記方法による修正後とにおけるアンバランスを、半
径方向に前後振幅、周方向に位相角を取った極座標に示
・したもので、Ｘ印が修正前、・印が修正後であり、車
輪のアンバランスが大幅に修正されているのが分る。The X-rays and yllIFi in Fig. 5 are lines representing the rotational phase and displacement, respectively, and each time the wheel a rotates once and the reflective tape al attached to it passes the front of the phase detector (2). A pulse waveform appears in the X-ray, and the displacement in the direction approaching the displacement detector (3) from the generation point of this Norse waveform becomes maximum y
? If the length on the recording paper up to the peak point of FM is Y1, and the generation interval on the recording paper of the pulse waveform is X, then the reflective tape al
The phase angle 2 of the peak point is as follows:
Then, the phase angle Q of the unlocked lance position of wheel a is Z
From the correction angle P and the correction angle P, calculate the amplitude from the wave height at the peak point of the y-line, select the weight t of the weight corresponding to this amplitude using the tuning chart, and set this weight. Figure 6 shows the unbalance of the left and right front wheels of the eight experimental vehicles (■ to ■) before correction and after correction using the above method, as shown in the longitudinal amplitude in the radial direction. It is shown in polar coordinates with the phase angle taken in the circumferential direction.The X mark is before the correction, and the * mark is after the correction, and it can be seen that the unbalance of the wheel has been significantly corrected.
又、下表は上記実験車のノ・ンドルの横振れの振幅（切
れ角方向の振幅に対応する）の測定結果を示し、前後振
幅のみによるアンバランス修正でハンドルの横振れも大
幅に抑制できることが分る。In addition, the table below shows the measurement results of the amplitude of the lateral vibration of the steering wheel (corresponding to the amplitude in the direction of the turning angle) of the above experimental vehicle, and shows that the lateral vibration of the steering wheel can be significantly suppressed by correcting the unbalance using only the longitudinal amplitude. I understand.
（発明の効果）
以上の如く本発明によるときは、車輪のアンバランスが
ダイレクトに現われるばね下構成部材の前後方向の振幅
のみに基いてアンバランス修正を行うもので、懸架機構
からの影響を受けず、１回の修正作業で実用上問題の無
い程度に車輪のアンバランスを修正でき、生産性が向上
される効果を有する。(Effects of the Invention) As described above, according to the present invention, the unbalance is corrected based only on the longitudinal amplitude of the unsprung component where the unbalance of the wheel directly appears, and the unbalance is not affected by the suspension mechanism. First, the unbalance of the wheels can be corrected to the extent that there is no practical problem with a single correction operation, which has the effect of improving productivity.
第１図は本発明の実施に用いるアンバランス検出装置の
１例の要部の正面図、第２図はその側面図、第３図はそ
の平面図、第４゛図はチューニングチャートラ示す線図
、第５図は位相検出器と変位検出器とによる検出データ
を示す線図、第６図は実験結果を示す極座標グラフであ
る。
ａ・・・車輪
ｂ・・・ロアアーム（ばね下構成部材）（１）・・・回
転ドラム （２）・・・位相検出器（３）・・・変
位検出器
外２名Fig. 1 is a front view of essential parts of an example of an unbalance detection device used for carrying out the present invention, Fig. 2 is a side view thereof, Fig. 3 is a plan view thereof, and Fig. 4 is a line indicating a tuning chart tracker. 5 is a diagram showing detection data by the phase detector and the displacement detector, and FIG. 6 is a polar coordinate graph showing the experimental results. a...Wheel b...Lower arm (unsprung component) (1)...Rotating drum (2)...Phase detector (3)...2 people outside the displacement detector
Claims (1)
せた状態で車輪のアンバランスを検出し、この検出結果
に基いてアンバランスを修正する方法において、車輪の
アンバランスを車輪以外のばね下構成部材の前後方向の
振幅として検出し、予め求めた前後方向の振幅とウエイ
ト重量との関係から振幅の検出値に対応する重量のウエ
イトを選択し、該ウエイトを車輪のリムのアンバランス
位置に取付けることを特徴とする車輪のアンバランス修
正方法。In this method, the unbalance of the wheel is detected while the wheel suspended on the vehicle body is placed on a rotating drum and rotated, and the unbalance is corrected based on the detection result. The amplitude is detected in the longitudinal direction of the unsprung component, and a weight corresponding to the detected amplitude is selected based on the relationship between the predetermined amplitude in the longitudinal direction and the weight weight, and the weight is used to determine the unbalance of the wheel rim. A method for correcting wheel imbalance, which is characterized by installing the wheel in a certain position.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10011687A JPS63266331A (en) | 1987-04-24 | 1987-04-24 | Unbalance correcting method for wheel |
| US07/184,563 US4864858A (en) | 1987-04-24 | 1988-04-21 | Wheel unbalance correction method and wheel unbalance detecting apparatus |
| GB8809591A GB2205413B (en) | 1987-04-24 | 1988-04-22 | Correcting wheel out-of-balance |
| CA000564927A CA1320649C (en) | 1987-04-24 | 1988-04-22 | Wheel unbalance correction method and wheel unbalance detecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10011687A JPS63266331A (en) | 1987-04-24 | 1987-04-24 | Unbalance correcting method for wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63266331A true JPS63266331A (en) | 1988-11-02 |
| JPH042895B2 JPH042895B2 (en) | 1992-01-21 |
Family
ID=14265388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10011687A Granted JPS63266331A (en) | 1987-04-24 | 1987-04-24 | Unbalance correcting method for wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63266331A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05107143A (en) * | 1991-10-17 | 1993-04-27 | Honda Motor Co Ltd | Method for correcting unbalanced wheel |
-
1987
- 1987-04-24 JP JP10011687A patent/JPS63266331A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05107143A (en) * | 1991-10-17 | 1993-04-27 | Honda Motor Co Ltd | Method for correcting unbalanced wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH042895B2 (en) | 1992-01-21 |
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