JPH0211760B2 - - Google Patents
Info
- Publication number
- JPH0211760B2 JPH0211760B2 JP57058181A JP5818182A JPH0211760B2 JP H0211760 B2 JPH0211760 B2 JP H0211760B2 JP 57058181 A JP57058181 A JP 57058181A JP 5818182 A JP5818182 A JP 5818182A JP H0211760 B2 JPH0211760 B2 JP H0211760B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- small diameter
- compressor wheel
- diameter portion
- circumferential surface
- 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
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/025—Fixing blade carrying members on shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supercharger (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【発明の詳細な説明】
本発明は、ターボチヤージヤに用いるコンプレ
ツサホイールの嵌合装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a compressor wheel fitting device used in a turbocharger.
従来、ターボチヤージヤにおいては、コンプレ
ツサホイールに軸孔を形成してこれらにタービン
シヤフトを嵌合させるを一搬とするが、この場合
コンプレツサホイールとタービンシヤフトとは、
本組付けに先立ち仮組付けしてのバランス取りを
行う関係で、その着脱を容易にすべくすきま嵌め
にするを一般とし、その結果すきま嵌めのクリア
ランスに相当する偏心を生じて超精密なバランス
を得にくくなる不都合を伴う。 Conventionally, in a turbocharger, a shaft hole is formed in the compressor wheel and a turbine shaft is fitted into the shaft hole.In this case, the compressor wheel and the turbine shaft are
In order to balance the temporary assembly prior to the actual assembly, it is common practice to use a loose fit to make it easier to attach and detach.As a result, an eccentricity corresponding to the clearance of the loose fit occurs, resulting in ultra-precise balance. This comes with the inconvenience of making it difficult to obtain.
又、嵌合をテーパ軸とテーパ穴とで行う方法も
あるが、この場合はコンプレツサホイールのター
ビンシヤフトに対する軸方向の嵌合深さがテーパ
によつて規制され、テーパ軸とテーパ穴とを高精
度で加工しないと軸方向位置にばらつきを生ずる
不都合を伴う。 There is also a method of fitting between a tapered shaft and a tapered hole, but in this case, the fitting depth of the compressor wheel in the axial direction with respect to the turbine shaft is regulated by the taper, and the fit between the tapered shaft and the tapered hole is limited. If not processed with high precision, there will be a problem that variations will occur in the axial position.
本発明は、かかる不都合を解消した装置を提供
することをその目的とするもので、タービンシヤ
フトの一端に、ネジ軸と該ネジ軸に連なる段付小
径部とを形成し、該段付小径部に、スラストカラ
ーとシールリングカラーとコンプレツサホイール
とを順次嵌合して、これらを、ネジ軸に螺着され
るナツトでタービンシヤフトに一体に固着するも
のにおいて、前記段付小径部に嵌合される前記コ
ンプレツサホイールの軸孔の内周面と、該内周面
に当接する段付小径部の外周面との何れか一方に
円周上の全周で当接する断面円弧状の膨出部を形
成したことを特徴とする。 An object of the present invention is to provide a device that eliminates such inconveniences, and includes forming a threaded shaft and a stepped small diameter portion connected to the threaded shaft at one end of the turbine shaft, and forming a stepped small diameter portion at one end of the turbine shaft. A thrust collar, a seal ring collar, and a compressor wheel are fitted in sequence, and these are integrally fixed to the turbine shaft with a nut screwed onto the screw shaft, in which the thrust collar, the seal ring collar, and the compressor wheel are fitted into the stepped small diameter portion. a bulge having an arcuate cross section that abuts the entire circumference of either the inner circumferential surface of the shaft hole of the compressor wheel and the outer circumferential surface of the stepped small diameter portion that abuts the inner circumferential surface; It is characterized by forming a part.
図面で１はエンジンの吸気通路に介在させるコ
ンプレツサホイール２内のコンプレツサホイー
ル、３はエンジンの排気通路に介在させるタービ
ンケース４内のタービンホイールを示し、該ター
ビンホイール３から一体にのびるタービンシヤフ
ト５は、その一端にネジ軸５ａと該ネジ軸５ａに
連なる段付小径部５ｂとを形成し、該段付小径部
５ｂを該コンプレツサホイール１に形成する軸孔
６に嵌合貫通させて、その先端のナツト７で該ホ
イール１に締結するものとした。 In the drawings, reference numeral 1 indicates a compressor wheel in a compressor wheel 2 interposed in the intake passage of the engine, numeral 3 indicates a turbine wheel in a turbine case 4 interposed in the exhaust passage of the engine, and a turbine shaft integrally extends from the turbine wheel 3. 5 has a threaded shaft 5a and a stepped small diameter portion 5b connected to the threaded shaft 5a at one end thereof, and the stepped small diameter portion 5b is fitted and passed through the shaft hole 6 formed in the compressor wheel 1. , is fastened to the wheel 1 with a nut 7 at its tip.
図面で８，９は該シヤフト５に挿通したスラス
トカラーとシールリングカラーを示し、該シール
リングカラー９を位置決め部材としてこれと該コ
ンプレツサホイール１との当接で該ホイール１の
該シヤフト５に対する軸方向位置が決定されるよ
うにした。 In the drawings, reference numerals 8 and 9 indicate a thrust collar and a seal ring collar inserted into the shaft 5, and the seal ring collar 9 is used as a positioning member, and when this and the compressor wheel 1 come into contact, the wheel 1 is moved against the shaft 5. The axial position is now determined.
以上は上記した従来式のものと特に異らないが
本発明によれば軸孔６の内周面とタービンシヤフ
ト５の外周面との何れか一方、例えば第２図示の
如くタービンシヤフト５の内周面或いは第３図示
の如く軸孔６の内周面に締めしろを得るための円
弧状膨出部１０を形成した。 Although the above is not particularly different from the conventional type described above, according to the present invention, either one of the inner circumferential surface of the shaft hole 6 and the outer circumferential surface of the turbine shaft 5, for example, the inner circumferential surface of the turbine shaft 5 as shown in the second figure. An arcuate bulge 10 is formed on the circumferential surface or on the inner circumferential surface of the shaft hole 6 as shown in the third figure to provide an interference margin.
該膨出部１０は、整形砥石による研削加工でも
又旋削加工でも成形可能であり、その寸法は１〜
2μ程度の極めてわずかな締めしろが得られるよ
うに設定する。 The bulging portion 10 can be formed by grinding with a shaping grindstone or by turning, and its dimensions are 1 to 1.
Set so that an extremely small tightening margin of about 2μ is obtained.
次いでその作動を説明するに、コンプレツサホ
イール１とタービンシヤフト５との嵌合に際して
は、該シヤフト５を該ホイール１の軸孔６内に圧
入するもので、これによれば膨出部１０において
両者１，５は締り嵌めされるが、本発明の如く該
膨出部１０を円弧状に形成するときは、両者１，
５の抜差しが容易となり、且該膨出部１０に他方
の部材が必ずその全周に亘つて当接して同心度も
得られ易くなる。 Next, to explain its operation, when the compressor wheel 1 and the turbine shaft 5 are fitted together, the shaft 5 is press-fitted into the shaft hole 6 of the wheel 1. Both 1 and 5 are tightly fitted, but when the bulging portion 10 is formed in an arc shape as in the present invention, both 1 and 5 are tightly fitted.
5 becomes easy to insert and remove, and the other member always comes into contact with the bulged portion 10 over its entire circumference, making it easier to obtain concentricity.
このように本発明によるときは、タービンシヤ
フトの段付小径部にナツトを介して締付固着され
るコンプレツサホイールは、これに形成される軸
孔の内周面と、該内周面に当接する段付小径部の
外周面との何れか一方に形成される円周上の全周
で当接する断面円弧状の膨出部で段付小径部に嵌
合させたものであるからコンプレツサホイールと
タービンシヤフトとを締り嵌めすることができ、
両者をすきま嵌めする従来例の如く該ホイールの
偏心を生ずることが無く、且つ該膨出部は円弧状
に形成されるため、両者の抜差しは締り嵌めに係
らず比較的容易に行い得られて、仮組付けしての
バランス取り後、両者を分解して本組付けする作
業に支障を来たすことが無く、而もこの円弧状の
膨出部には他方の部材が必ずその全周に亘り当接
して同心度も確保され、超精密なバランスを得る
ことが可能となり、更にテーパ軸とテーパ穴とで
嵌合する式のものと異りコンプレツサホイールの
タービンシヤフトへの嵌合深さが規制されず、こ
れを位置決め部材による所定の軸方向位置に確実
に取付けられる効果を有する。 In this way, according to the present invention, the compressor wheel that is fastened and fixed to the stepped small diameter portion of the turbine shaft through the nut is in contact with the inner circumferential surface of the shaft hole formed in the compressor wheel and the inner circumferential surface. It is a compressor wheel because it is a bulge with an arcuate cross section that is formed on either side of the outer peripheral surface of the stepped small diameter part and is in contact with the entire circumference of the circumference and is fitted into the stepped small diameter part. and the turbine shaft can be tightly fitted,
Unlike the conventional example in which the wheels are fitted with a clearance, eccentricity of the wheel does not occur, and since the bulge is formed in an arc shape, it is relatively easy to insert and remove the wheels regardless of tight fit. After temporarily assembling and balancing, there is no problem in disassembling the two parts and final assembly, and this arc-shaped bulge part is always covered by the other member all the way around it. This ensures concentricity through contact, making it possible to obtain ultra-precise balance.Furthermore, unlike the type that fits between a tapered shaft and a tapered hole, the depth of fit of the compressor wheel to the turbine shaft is reduced. This has the effect that it can be reliably attached to a predetermined axial position by the positioning member without being restricted.
第１図は本発明装置を適用するターボチヤージ
ヤの截断側面図、第２図は本発明装置の１例の要
部の分解截断側面図、第３図はその変形例の要部
の分解截断側面図である。
１…コンプレツサホイール、５…タービンシヤ
フト、６…軸孔、１０…膨出部。
Fig. 1 is a cutaway side view of a turbocharger to which the device of the present invention is applied, Fig. 2 is an exploded cutaway side view of the essential parts of an example of the device of the present invention, and Fig. 3 is an exploded cutaway side view of the main parts of a modification thereof. It is. DESCRIPTION OF SYMBOLS 1...Compressor wheel, 5...Turbine shaft, 6...Shaft hole, 10...Bulging part.
Claims (1)
軸に連なる段付小径部とを形成し、該段付小径部
に、スラストカラーとシールリングカラーとコン
プレツサホイールとを順次嵌合して、これらを、
ネジ軸に螺着されるナツトでタービンシヤフトに
一体に固着するものにおいて、前記段付小径部に
嵌合される前記コンプレツサホイールの軸孔の内
周面と、該内周面に当接する段付小径部の外周面
との何れか一方に円周上の全周で当接する断面円
弧状の膨出部を形成したことを特徴とするコンプ
レツサホイールの嵌合装置。1. A threaded shaft and a stepped small diameter portion connected to the threaded shaft are formed at one end of the turbine shaft, and a thrust collar, a seal ring collar, and a compressor wheel are sequentially fitted into the stepped small diameter portion. of,
In a nut that is screwed onto a threaded shaft and is integrally fixed to the turbine shaft, the nut has an inner circumferential surface of the shaft hole of the compressor wheel that is fitted into the stepped small diameter portion, and a step that abuts the inner circumferential surface. A fitting device for a compressor wheel, characterized in that a bulge having an arcuate cross section is formed on one side of the outer circumferential surface of the small diameter portion and comes into contact with the entire circumference of the small diameter portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57058181A JPS58176499A (en) | 1982-04-09 | 1982-04-09 | Fitting device for compressor wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57058181A JPS58176499A (en) | 1982-04-09 | 1982-04-09 | Fitting device for compressor wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58176499A JPS58176499A (en) | 1983-10-15 |
| JPH0211760B2 true JPH0211760B2 (en) | 1990-03-15 |
Family
ID=13076831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57058181A Granted JPS58176499A (en) | 1982-04-09 | 1982-04-09 | Fitting device for compressor wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58176499A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6159418B2 (en) * | 2013-12-11 | 2017-07-05 | 三菱重工業株式会社 | Rotating body and method for manufacturing the rotating body |
| DE102018007453A1 (en) * | 2018-09-20 | 2020-03-26 | Saurer Spinning Solutions Gmbh & Co. Kg | Holder for rotating a rotor cup of a spinning rotor, spinning rotor and method for producing a press connection between a rotor cup and a holder |
| CN112360567A (en) * | 2020-10-26 | 2021-02-12 | 北京动力机械研究所 | High-speed radial-flow turbine and compressor composite impeller |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5666492A (en) * | 1979-11-06 | 1981-06-04 | Toyota Motor Corp | Fitting structure of impeller for small turbo machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4871270U (en) * | 1971-12-14 | 1973-09-07 |
-
1982
- 1982-04-09 JP JP57058181A patent/JPS58176499A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5666492A (en) * | 1979-11-06 | 1981-06-04 | Toyota Motor Corp | Fitting structure of impeller for small turbo machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58176499A (en) | 1983-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4519747A (en) | Method for assembling an impeller onto a turboshaft | |
| GB2197037A (en) | Mounting bearings | |
| JPS61500502A (en) | Hub seal and shaft sleeve | |
| US5339521A (en) | Machining method of ceramic turbine rotor | |
| JPH0211760B2 (en) | ||
| JPS5851478Y2 (en) | oil seal | |
| JP3077893B2 (en) | wheel | |
| JPH0118594Y2 (en) | ||
| JP2526504Y2 (en) | Pulley with damper | |
| JPS6453618U (en) | ||
| JPS6224870Y2 (en) | ||
| JP6687119B2 (en) | Supercharger and method of assembling supercharger | |
| JPS58192998A (en) | Fixing device for ceramic shaft and impeller | |
| JPS6028821Y2 (en) | Flange bearing | |
| JPH023003Y2 (en) | ||
| JPS6019996Y2 (en) | Blower moving blade fixed structure | |
| JPS6022787Y2 (en) | Crankshaft drive wheel attachment device | |
| JPS6227744Y2 (en) | ||
| JPS6326574Y2 (en) | ||
| JPS6220151Y2 (en) | ||
| JPS6322372Y2 (en) | ||
| JPH0418883Y2 (en) | ||
| JPS60152832U (en) | bearing device | |
| JP2501652Y2 (en) | Welding axis | |
| US6820518B2 (en) | Crankshaft assembly |