JPH0138514Y2 - - Google Patents
Info
- Publication number
- JPH0138514Y2 JPH0138514Y2 JP1983148048U JP14804883U JPH0138514Y2 JP H0138514 Y2 JPH0138514 Y2 JP H0138514Y2 JP 1983148048 U JP1983148048 U JP 1983148048U JP 14804883 U JP14804883 U JP 14804883U JP H0138514 Y2 JPH0138514 Y2 JP H0138514Y2
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- impeller
- mounting
- different diameter
- measurement
- 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
Links
- 238000005259 measurement Methods 0.000 claims description 25
- 230000002950 deficient Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- VNTLIPZTSJSULJ-UHFFFAOYSA-N chromium molybdenum Chemical compound [Cr].[Mo] VNTLIPZTSJSULJ-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Testing Of Balance (AREA)
- Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は小型軽量回転体、特にターボチヤージ
ヤ用インペラの動バランス測定時において、バラ
ンス測定装置に回転体の内径部を保持、固定させ
るために用いる動バランス測定用径方向弾性チヤ
ツクに関するものである。[Detailed description of the invention] (Field of industrial application) This invention is used to hold and fix the inner diameter of the rotating body in a balance measuring device when measuring the dynamic balance of a small and lightweight rotating body, especially an impeller for a turbocharger. This invention relates to a radial elastic chuck for measuring dynamic balance.
（従来技術）
ターボチヤージヤ用インペラの動バランスを測
定し、修正する場合に用いられるインペラ取付用
治具（チヤツク）１は、第１図に示すように、イ
ンペラ２の内径部２ａを嵌合する円筒形の部品取
付部３を一端に設け、他端にはバランス測定装置
へ取り付ける先端へ細くなるテーパ部４を設け、
テーパ部４の部品取付側端部にはテーパ部取り外
し用ナツトを取り付けるためのネジ部５を形成さ
せ、治具１の中心部に軸方向の貫通孔６をあけ、
部品取付部３とネジ部５の間に貫通孔６に垂直な
空気抜き用小孔７をあける。部品取付部３には端
面からネジ部５側へ向けて細目ネジを形成した部
品締付用ネジ孔８を設け、ボルト９を取り付けら
れるようにしてある。(Prior Art) An impeller mounting jig (chuck) 1 used to measure and correct the dynamic balance of an impeller for a turbocharger is a cylindrical part into which an inner diameter part 2a of an impeller 2 is fitted, as shown in FIG. A shaped part mounting part 3 is provided at one end, and a tapered part 4 is provided at the other end, which tapers toward the tip for attachment to the balance measuring device.
A threaded portion 5 for attaching a nut for removing the tapered portion is formed at the component mounting side end of the tapered portion 4, and an axial through hole 6 is bored in the center of the jig 1.
A small hole 7 for air vent perpendicular to the through hole 6 is made between the component mounting part 3 and the threaded part 5. The component mounting portion 3 is provided with a component tightening screw hole 8 having a fine thread formed from the end face toward the threaded portion 5 side, so that a bolt 9 can be attached thereto.
インペラ２の取り付けは、部品の内径公差によ
るガタを避けるため、部品取付部３の軸径を公差
の程度に応じて複数の軸径のものを用意し、部品
との嵌合によるガタが最小になるものを選択嵌合
して選び出し、適合性の良い軸径のものを用いて
嵌合した後、ボルト９を部品締付用ネジ孔８に螺
合して、インペラ２を締め付け、固定する。部品
取付部３の軸方向長さはインペラ長手方向寸法
（インペラ内径部２ａの軸方向長さ）より短かく
し、ボルト９を締め込んだ時に部品取付部３の端
面とボルト９のネジ側端面との間に、インペラ２
を充分に締め付けることができるようにするため
のすき間１０があくようにする。 When installing the impeller 2, in order to avoid play due to the internal diameter tolerance of the parts, prepare multiple shaft diameters of the component mounting part 3 according to the degree of tolerance, and minimize play due to fitting with the parts. After selecting and fitting one with a shaft diameter with good compatibility, the bolt 9 is screwed into the screw hole 8 for tightening the component, and the impeller 2 is tightened and fixed. The axial length of the component mounting portion 3 is made shorter than the longitudinal dimension of the impeller (the axial length of the impeller inner diameter portion 2a), so that when the bolt 9 is tightened, the end surface of the component mounting portion 3 and the thread side end surface of the bolt 9 are connected. between impeller 2
A gap 10 is provided to allow sufficient tightening.
このようなインペラ取付治具１では、部品取付
時に部品取付部３が適合する治具を選択する必要
があるため作業性が悪くムダ時間も多くなる。こ
のため生産ラインにおける使用状況は軸径最小の
治具を共用する傾向があり、軸部の取付ガタによ
つてバランス精度が悪くなる。また、インペラ２
をボルト９により締め付けた場合に、インペラの
長手方向公差の影響により、インペラ２を締め付
けるボルトの止まる位置が各インペラによつて異
なり、ボルトにある残留アンバランス量に影響さ
れて、インペラ２のバランス測定精度が悪くな
る。これらはすべてターボチヤージヤアツシイに
おける振動不良の原因になつている。 With such an impeller mounting jig 1, it is necessary to select a jig to which the component mounting portion 3 is compatible when mounting components, resulting in poor workability and a large amount of wasted time. For this reason, in production lines, there is a tendency for the jig with the smallest shaft diameter to be shared, and balance accuracy deteriorates due to play in the mounting of the shaft. Also, impeller 2
When tightening with bolts 9, the stopping position of the bolt tightening the impeller 2 differs depending on each impeller due to the influence of the longitudinal tolerance of the impeller, and the balance of the impeller 2 is affected by the amount of residual unbalance in the bolt. Measurement accuracy deteriorates. All of these are causes of vibration defects in the turbocharger assembly.
（考案の目的）
本考案は上記欠点を改善するためのもので、半
径方向に弾性変形する部品取付部を備えた治具を
用いることにより、取付作業性が良く、取付作業
の時間損失が少なく、高精度な動バランス測定を
可能にし、不良率を低下させる動バランス測定用
径方向弾性チヤツクを提供するものである。(Purpose of the invention) The present invention is intended to improve the above-mentioned drawbacks.By using a jig equipped with a component mounting part that is elastically deformed in the radial direction, the mounting work is easy and the time loss during the mounting work is reduced. The present invention provides a radial elastic chuck for measuring dynamic balance that enables highly accurate dynamic balance measurement and reduces the defective rate.
（考案の構成）
本考案の特徴は、中空円筒形の部品取付軸部の
中間に、取付けるべき取付部品の嵌合部内径より
も大きな外径を有する異径部を設け、該異径部に
その全長にわたる長さでかつ外周より中空孔へ達
する長孔を複数設け、取付部品の嵌合時に該異径
部を圧縮・縮径可能としたことである。(Structure of the device) The feature of the device is that a different diameter portion is provided in the middle of the hollow cylindrical component mounting shaft portion, and the outer diameter is larger than the inner diameter of the fitting portion of the mounting component to be attached. A plurality of elongated holes extending over the entire length and reaching the hollow hole from the outer periphery are provided, so that the different diameter portion can be compressed and reduced in diameter when fitting the attachment part.
（作用）
本考案は上記構成により、取付部品を部品取付
軸部に挿入することにより、異形部の長孔と長孔
との間の部分が弾性変形して異径部が縮径するこ
とによつて取付部品の嵌合ができ、嵌合時には異
径部の半径方向の弾性により取付部品を保持、固
定するため、取付作業が部品の挿入作業だけの簡
単なものになり、不要な選択嵌合等がなくなつて
取付作業の時間損失が少なくなる。部品取付に対
して軸方向および径方向の間隙がなくなり高精度
な動バランス測定を可能にし、結果として不良率
を低下させることができるようになる。(Function) With the above configuration, the present invention allows the portion between the long holes of the irregularly shaped part to be elastically deformed and the diameter of the different diameter part to be reduced by inserting the mounting part into the component mounting shaft. This allows the fitting of the mounting parts, and when mating, the mounting parts are held and fixed by the radial elasticity of the different diameter parts, making the mounting work as simple as inserting the parts, eliminating unnecessary selective fitting. This reduces the time loss during installation work. There are no gaps in the axial and radial directions when mounting parts, making it possible to measure dynamic balance with high precision, and as a result, the defective rate can be reduced.
（実施例） 以下、本考案の実施例を図により説明する。(Example) Hereinafter, embodiments of the present invention will be described with reference to the drawings.
ターボチヤージヤ用ラジアルコンプレツサのイ
ンペラ２をバランス測定装置に取り付けるための
径方向弾性チヤツク１１は、第２図、第３図に示
すように、一端を先細りのテーパ部１２を形成し
てバランス測定装置への取付部とし、テーパ部１
２の最大径の位置にネジ部１３を設け、ネジ部１
３のテーパ部１２と反対側には円筒部１４を設
け、円筒部１４の端部を測定部品当接面１５とし
て軸芯に対して直角な面を形成する。円筒部１４
のテーパ部１２と反対側には測定部品（図示せ
ず）の内径部を嵌合させる測定部品取付軸部１６
を設ける。この測定部品取付軸部１６は基準径部
１７と基準径部１７よりも外径の大きい異径部１
８とに分ける。基準径部１７と異径部１８との境
界は緩やかな傾斜面にする。測定部品取付軸部１
６の端部からテーパ部１２の端部まで軸方向に同
軸的に貫通孔１９があけられている。貫通孔１９
の測定部品取付軸部１６と円筒部１４の部分はテ
ーパ部１２の部分よりも若干拡径しておく。異径
部１８の全長にわたり、外周から貫通孔１９へ達
する長孔２０を複数個設ける。 As shown in FIGS. 2 and 3, the radial elastic chuck 11 for attaching the impeller 2 of the radial compressor for a turbocharger to the balance measuring device is attached to the balance measuring device by forming a tapered portion 12 at one end. The mounting part is the tapered part 1.
A threaded portion 13 is provided at the maximum diameter position of threaded portion 1.
A cylindrical portion 14 is provided on the side opposite to the tapered portion 12 of No. 3, and the end of the cylindrical portion 14 forms a surface perpendicular to the axis as a measurement component contacting surface 15. Cylindrical part 14
On the opposite side of the tapered part 12 is a measuring part mounting shaft part 16 into which the inner diameter part of a measuring part (not shown) is fitted.
will be established. This measurement component mounting shaft part 16 includes a reference diameter part 17 and a different diameter part 1 having an outer diameter larger than the reference diameter part 17.
Divide into 8. The boundary between the standard diameter portion 17 and the different diameter portion 18 is formed into a gentle slope. Measurement part mounting shaft part 1
A through hole 19 is formed coaxially in the axial direction from the end of the tapered portion 12 to the end of the tapered portion 12 . Through hole 19
The measurement component mounting shaft portion 16 and the cylindrical portion 14 are slightly larger in diameter than the tapered portion 12. A plurality of elongated holes 20 are provided over the entire length of the different diameter portion 18 and reach the through hole 19 from the outer periphery.
測定部品取付軸部１６の具体的寸法は、インペ
ラ内径部の直径が6.5ミリメートルの場合、使用
材料をクロムモリブデン鋼とする時、基準径部１
７の直径を6.5ミリメートルとし、異径部１８の
長さは12ミリメートル、異径部１８の直径はイン
ペラ取付前の自由寸法でインペラ内径部の直径に
嵌合公差の最大値を加えた値よりも大きくし、イ
ンペラ取付時に長孔２０と長孔の間の部分が弾性
変形して異径部が縮径し、インペラ２が嵌合でき
るような寸法として、作業者が手でインペラ２を
押し込める程度にするため、異径部１８の自由寸
法を6.51ミリメートルにする。貫通孔１９の測定
部品取付軸部１６の部分では直径を４ミリメート
ルにし、長孔２０の幅は１ミリメートルとし、長
孔２０の長さは異径部１８の直径が増加する部分
全体になるように12ミリメートルにし、長孔の数
は６個とする。 The specific dimensions of the measuring part mounting shaft part 16 are as follows: When the diameter of the impeller inner diameter part is 6.5 mm, and when the material used is chromium molybdenum steel, the reference diameter part 1
The diameter of 7 is 6.5 mm, the length of the different diameter part 18 is 12 mm, and the diameter of the different diameter part 18 is the free dimension before installing the impeller, which is the value of the diameter of the inner diameter of the impeller plus the maximum fitting tolerance. The diameter of the impeller 2 is increased so that when the impeller is installed, the portion between the long holes 20 and the long holes is elastically deformed, the different diameter portion is reduced in diameter, and the impeller 2 can be fitted into the impeller 2 by hand. In order to maintain the same size, the free dimension of the different diameter portion 18 is set to 6.51 mm. The diameter of the through hole 19 at the measurement component mounting shaft 16 is 4 mm, the width of the elongated hole 20 is 1 mm, and the length of the elongated hole 20 is set to cover the entire portion where the diameter of the different diameter portion 18 increases. The diameter shall be 12 mm, and the number of long holes shall be 6.
以上のような上記実施例では、インペラ２のよ
うな測定部品を取り付ける場合、ボルト等螺合部
品を用いることなく、作業者が測定部品を測定部
品取付軸部１６に内径部を挿入し、力をこめて押
し込むことにより、内径部の押圧力により異径部
１８が弾性変形して縮径し、測定部品当接面１５
に測定部品の一端が当接するまで嵌入させること
ができるようになる。測定部品取付後、測定回転
数で回転させても、測定部品が異径部１８の変形
により生じた弾性力により測定部品取付軸部１６
に固着して離れず、抜け出るようなことが起らな
い。従つて、測定部品と測定部品取付軸部１６と
の間に軸方向および半径方向の間隙あるいはガタ
が生じることがなく、動バランスの測定精度が高
くなる。また従来の測定精度よりもボルト取付に
起因するアンバランスが皆無となつて50％以上向
上する等、測定時の誤差が小さくなつて、測定精
度が格段に良くなる。このように取付作業が簡素
化され、不要な時間損失がなくなつたため作業効
率が大幅に向上した。 In the embodiment described above, when attaching a measurement component such as the impeller 2, the operator inserts the inner diameter part of the measurement component into the measurement component mounting shaft 16 without using a screwed component such as a bolt, and applies force. By pushing in with all the force, the different diameter part 18 is elastically deformed and reduced in diameter by the pressing force of the inner diameter part, and the measuring part contact surface 15
The part to be measured can be inserted until one end of the part comes into contact with the other end. Even if the measurement component is rotated at the measurement rotation speed after the measurement component is attached, the measurement component mounting shaft portion 16 will be distorted due to the elastic force generated by the deformation of the different diameter portion 18.
It sticks to it and doesn't let go, and there's no way it can break out. Therefore, there is no gap or backlash in the axial and radial directions between the measurement component and the measurement component mounting shaft portion 16, and the accuracy of measuring dynamic balance is increased. In addition, the measurement accuracy is improved by more than 50% compared to conventional measurement accuracy, as there is no imbalance caused by bolt installation, and errors during measurement are reduced, making measurement accuracy much better. In this way, the installation work has been simplified and unnecessary time loss has been eliminated, greatly improving work efficiency.
上記実施例は、本考案の主旨をより良く理解さ
せるために具体的に述べたもので、特に指定され
ない限り別態様を制限するものではない。たとえ
ば、上記実施例では測定部品を作業者が手で挿入
し、力をこめて押し込む程度で機能するように各
部寸法を定めてあるが、測定部品の挿入、引抜き
をプレス機械のような気圧あるいは油圧操作によ
る着脱装置を用いる場合には寸法を変える、たと
えば異径部外径を大きくして基準径部との差を大
きくする等が行われる。 The above-mentioned embodiments have been specifically described in order to better understand the gist of the present invention, and are not intended to limit other embodiments unless otherwise specified. For example, in the above embodiment, the dimensions of each part are determined so that the operator can insert the measurement part by hand and push it in with force. When using a hydraulically operated attachment/detachment device, the dimensions are changed, for example, the outer diameter of the different diameter portion is increased to increase the difference from the reference diameter portion.
また、本実施例では、ターボチヤージヤ用イン
ペラを例に述べたが、適用部品としてはこれに限
定されず、小型軽量な回転体、たとえばエアータ
ービン、ジヤイロ用ロータ等部品段階で軸対称性
を要求される高速回転体も適用可能で、上記適用
部品に対する動バランス測定装置用取付治具とし
て使用することにより、これらの作業性を効果的
に改善する。 Further, in this embodiment, an impeller for a turbocharger was described as an example, but the applicable parts are not limited to this, but are small and lightweight rotating bodies, such as air turbines, rotors for gyros, etc., which require axial symmetry at the component stage. It is also possible to apply the present invention to high-speed rotating bodies such as those mentioned above, and by using it as a mounting jig for the dynamic balance measuring device to the above-mentioned applicable parts, the workability of these objects is effectively improved.
（考案の効果）
以上のように本考案は、部品取付軸部に挿入す
るだけで効果的に部品の装着ができ、取付作業性
が良く、取付作業の時間損失が少なく、高精度な
動バランス測定を可能にし、同時に同軸上で行な
うバランス修正精度も向上され、不良率を低下さ
せることができるようになる。(Effects of the invention) As described above, the present invention allows components to be mounted effectively simply by inserting them into the component mounting shaft, has good mounting work efficiency, reduces time loss during mounting work, and achieves high-precision dynamic balance. This makes it possible to perform measurements and at the same time improve the accuracy of balance correction performed on the same axis, making it possible to reduce the defective rate.
第１図は従来の動バランス測定用インペラ取付
治具を示す部分断面図、第２図は本考案による動
バランス測定用径方向弾性チヤツクの側面図、第
３図は第２図の−線に沿う断面図である。
１１…径方向弾性チヤツク、１５…測定部品当
接面、１６…測定部品取付軸部、１７…基準径
部、１８…異径部、１９…貫通孔（中空孔）、２
０…長孔。
Fig. 1 is a partial sectional view showing a conventional impeller mounting jig for measuring dynamic balance, Fig. 2 is a side view of the radial elastic chuck for measuring dynamic balance according to the present invention, and Fig. 3 is shown along the - line in Fig. 2. FIG. DESCRIPTION OF SYMBOLS 11...Radial elastic chuck, 15...Measurement component contact surface, 16...Measurement component attachment shaft part, 17...Reference diameter part, 18...Different diameter part, 19...Through hole (hollow hole), 2
0...Long hole.
Claims (1)
べき取付部品の嵌合部内径よりも大きな外径を有
する異径部を設け、該異径部にその全長にわたる
長さでかつ外周より中空孔へ達する長孔を複数設
け、取付部品の嵌合時に該異径部を圧縮・縮径可
能としたことを特徴とする動バランス測定用径方
向弾性チヤツク。 In the middle of the hollow cylindrical parts mounting shaft part, a different diameter part having an outer diameter larger than the inner diameter of the fitting part of the mounting part to be mounted is provided, and a hollow hole is provided in the different diameter part over the entire length and from the outer periphery. A radial elastic chuck for dynamic balance measurement, characterized in that it has a plurality of elongated holes that reach the diameter of the chuck, and is capable of compressing and reducing the diameter of the different diameter portion when fitting the mounting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14804883U JPS6054948U (en) | 1983-09-24 | 1983-09-24 | Radial elastic chuck for dynamic balance measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14804883U JPS6054948U (en) | 1983-09-24 | 1983-09-24 | Radial elastic chuck for dynamic balance measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6054948U JPS6054948U (en) | 1985-04-17 |
| JPH0138514Y2 true JPH0138514Y2 (en) | 1989-11-17 |
Family
ID=30329054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14804883U Granted JPS6054948U (en) | 1983-09-24 | 1983-09-24 | Radial elastic chuck for dynamic balance measurement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6054948U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2513905B (en) * | 2013-05-10 | 2020-05-20 | Universal Balancing Ltd | Apparatus for driving a rotor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58125710U (en) * | 1982-02-18 | 1983-08-26 | 丸福釣具株式会社 | telescopic rod |
-
1983
- 1983-09-24 JP JP14804883U patent/JPS6054948U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6054948U (en) | 1985-04-17 |
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