JPH04123303U - rotating machine scroll - Google Patents
rotating machine scrollInfo
- Publication number
- JPH04123303U JPH04123303U JP2912891U JP2912891U JPH04123303U JP H04123303 U JPH04123303 U JP H04123303U JP 2912891 U JP2912891 U JP 2912891U JP 2912891 U JP2912891 U JP 2912891U JP H04123303 U JPH04123303 U JP H04123303U
- Authority
- JP
- Japan
- Prior art keywords
- shroud
- blower
- central opening
- scroll
- blower casing
- 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.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000013011 mating Effects 0.000 description 4
- 238000003801 milling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Supercharger (AREA)
Abstract
(57)【要約】
【目的】 より少ない加工工数と加工時間でブロワ車室
とシュラウドを製造することができ、ブロワ車室とシュ
ラウドの組付を正確に行い得る回転機械のスクロールを
提供する。
【構成】 この回転機械のスクロールはブロワ車室１と
シュラウド２によりボリュート流路３が形成される。ブ
ロワ車室１とシュラウド２が別個に形成され、ブロワ車
室１の中央開口部１ａ内にシュラウド２の中央筒部２ａ
が嵌合固定される。さらに、ブロワ車室１の中央開口部
１ａが非円形形状に形成され、シュラウド２の中央筒部
２ａの外周部が中央開口部１ａに対応した非円形形状に
形成される。
(57) [Summary] [Purpose] To provide a scroll for a rotating machine that allows manufacturing a blower casing and a shroud with fewer processing steps and processing time, and allows accurate assembly of the blower casing and shroud. [Structure] In the scroll of this rotating machine, a volute flow path 3 is formed by a blower casing 1 and a shroud 2. The blower compartment 1 and the shroud 2 are formed separately, and the central cylinder part 2a of the shroud 2 is inserted into the central opening 1a of the blower compartment 1.
are fitted and fixed. Furthermore, the central opening 1a of the blower compartment 1 is formed in a non-circular shape, and the outer circumference of the central cylindrical portion 2a of the shroud 2 is formed in a non-circular shape corresponding to the central opening 1a.
Description
【０００１】0001
本考案は、過給機、タービン等の回転機械におけるスクロールに関する。 The present invention relates to a scroll in a rotating machine such as a supercharger or a turbine.
【０００２】0002
過給機等のスクロールは、内部に渦巻状のボリュート流路を有し、且つそのボ リュート流路が、開口部より内部が広い形状を有しているため、スクロールを鋳 造により一体成形することは困難である。 Scrolls in turbochargers, etc. have a spiral volute flow path inside, and the volute Because the lute channel has a shape that is wider inside than the opening, the scroll can be cast. Due to its structure, it is difficult to mold it in one piece.
【０００３】 このため、従来、スクロールのブロワ車室とシュラウドを分割して別個に成形 し、その後、両者を嵌合組付して焼きばめにより固定する製造技術が提案されて いる（例えば、特公平２−３６７６１号公報参照）。このシュラウドの内面は、 ボリュート流路の断面変化に対応してその半径が変化するような曲面で形成され 、その曲面はブロワ車室側の内側曲面と連続している。0003 For this reason, conventionally, the scroll blower chamber and shroud were separated and molded separately. After that, a manufacturing technology has been proposed in which the two are assembled and fixed by shrink fitting. (For example, see Japanese Patent Publication No. 2-36761). The inside of this shroud is It is formed of a curved surface whose radius changes in response to changes in the cross section of the volute flow path. , the curved surface is continuous with the inner curved surface on the side of the blower compartment.
【０００４】0004
しかし、このようなブロワ車室とシュラウドが別個に成形されて組み付けられ る場合、ブロワ車室とシュラウドの組付が円管部分の内周部と外周部を嵌合させ て行われるため、互いの組み付け位置が周方向にずれると、ボリュート流路の分 割線位置に段差が生じてしまう。このために、従来では、ブロワ車室とシュラウ ドとの嵌合部にキーとキー溝或は凹部と凸部を設け、そのキーとキー溝等の嵌合 により周方向の位置決めを行って、ブロワ車室とシュラウドの組付を正確に行う ようにしていた。 However, such a blower casing and shroud are molded separately and assembled. When assembling the blower casing and shroud, the inner and outer peripheries of the circular tube portion must fit together. Therefore, if the assembly positions are shifted in the circumferential direction, the volute flow path will be separated. A difference in level occurs at the dividing line position. For this reason, in the past, the blower compartment and shroud were A key and a key groove or a concave part and a convex part are provided in the fitting part with the key, and the fitting of the key and key groove, etc. positioning in the circumferential direction and assembling the blower casing and shroud accurately. That's what I was doing.
【０００５】 このため、ブロワ車室とシュラウドの加工工程において、ブロワ車室とシュラ ウドを旋盤加工した後、さらにフライス盤等によりキーとキー溝又は凹部と凸部 を形成する必要があり、加工工数と加工時間が多くかかる課題があった。[0005] For this reason, in the blower casing and shroud machining process, the blower casing and shroud are After processing the wood with a lathe, use a milling machine etc. to cut the key and keyway or the concave and convex parts. It is necessary to form a 3-dimensional structure, which poses the problem of requiring a large amount of processing man-hours and processing time.
【０００６】 本考案は、上記の課題を解決するためになされたもので、より少ない加工工数 と加工時間でブロワ車室とシュラウドを製造することができ、ブロワ車室とシュ ラウドの組付を正確に行い得る回転機械のスクロールを提供することを目的とす る。[0006] This invention was made to solve the above problems, and reduces the processing man-hours. The blower casing and shroud can be manufactured in a short processing time. The purpose of this invention is to provide a scroll for rotating machinery that allows accurate assembly of the loudspeaker. Ru.
【０００７】[0007]
このために、本考案の回転機械のスクロールは、ブロワ車室とシュラウドによ りボリュート流路が形成される回転機械のスクロールにおいて、ブロワ車室とシ ュラウドが別個に形成され、ブロワ車室の中央開口部内にシュラウドの中央筒部 が嵌合固定され、中央開口部が非円形形状に形成され、シュラウドの中央筒部の 外周部が中央開口部に対応した非円形形状に形成されて構成される。 For this reason, the scroll of the rotary machine of the present invention is connected to the blower casing and shroud. In the scroll of a rotating machine where a volute flow path is formed, the blower casing and the cylinder are The shroud is formed separately, and the central cylindrical portion of the shroud is located within the central opening of the blower compartment. are fitted and fixed, the central opening is formed into a non-circular shape, and the central cylindrical part of the shroud is The outer peripheral portion is formed into a non-circular shape corresponding to the central opening.
【０００８】[0008]
スクロールの製造工程において、ブロワ車室とシュラウドは、各々所定の形状 に鋳造され、切削加工された後、ブロワ車室の中央開口部内にシュラウドの中央 筒部が嵌合され、焼きばめにより両者が固定されるが、両者を嵌合する際、シュ ラウドの中央筒部の外周部がブロワ車室の中央開口部に対応した非円形形状に形 成されるため、シュラウドとブロワ車室が周方向にずれることなく、つまりボリ ュート流路の分割線の位置に段差が生じることなく、正確且つ容易に位置決めを 行なって嵌合固定することができる。 In the scroll manufacturing process, the blower casing and shroud each have a predetermined shape. The center of the shroud is cast and machined into the center opening of the blower compartment. The cylindrical parts are fitted and the two are fixed by shrink fitting, but when fitting the two, the shoe The outer periphery of the central cylindrical part of the loud is shaped into a non-circular shape that corresponds to the central opening of the blower compartment. This prevents the shroud and the blower casing from shifting in the circumferential direction; Accurate and easy positioning without creating a step at the dividing line of the route can be fitted and fixed.
【０００９】[0009]
以下、本考案の実施例を図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described based on the drawings.
【００１０】 図１は過給機のスクロールの正面図を示し、図２はそのII−II断面図を示して いる。このスクロールは、ブロワ車室１とシュラウド２が別個に形成され、ブロ ワ車室１の中央開口部１ａ内にシュラウド２の中央筒部２ａが嵌合固定される。0010 Figure 1 shows a front view of the scroll of the supercharger, and Figure 2 shows its II-II sectional view. There is. In this scroll, the blower compartment 1 and the shroud 2 are formed separately. The central cylindrical portion 2a of the shroud 2 is fitted and fixed within the central opening 1a of the vehicle compartment 1.
【００１１】 ブロワ車室１とシュラウド２の間に、断面積が変化するボリュート流路３が形 成されるが、そのボリュート流路３の側壁を形成するシュラウド２の厚さは、ボ リュート流路３の断面積に応じて変化するように構成される。[0011] A volute flow path 3 with a varying cross-sectional area is formed between the blower casing 1 and the shroud 2. However, the thickness of the shroud 2 forming the side wall of the volute channel 3 is It is configured to change depending on the cross-sectional area of the lute channel 3.
【００１２】 さらに、ブロワ車室１の中央開口部１ａは正面視で楕円形に形成され、シュラ ウド２の中央筒部２ａの外周部が中央開口部１ａに対応した楕円形に形成される 。0012 Furthermore, the central opening 1a of the blower compartment 1 is formed in an oval shape when viewed from the front, and The outer periphery of the central cylindrical portion 2a of the door 2 is formed into an elliptical shape corresponding to the central opening 1a. .
【００１３】 スクロールの製造工程において、ブロワ車室１とシュラウド２は、各々所定の 形状に鋳造され、切削加工された後、ブロワ車室１の中央開口部１ａ内にシュラ ウド２の中央筒部２ａが嵌合され、焼きばめにより両者が固定されるが、両者を 嵌合する際、シュラウド２の中央筒部２ａの外周部がブロワ車室１の中央開口部 １ａに対応した楕円形に形成されるため、シュラウド２とブロワ車室１が周方向 にずれることなく、つまりボリュート流路３の分割線の位置に段差が生じること なく、正確且つ容易に位置決めを行なって嵌合固定することができる。[0013] In the scroll manufacturing process, the blower casing 1 and the shroud 2 each have a predetermined After being cast into a shape and cut, a shroud is placed in the central opening 1a of the blower casing 1. The central cylindrical part 2a of the cover 2 is fitted, and the two are fixed by shrink fitting. When mating, the outer periphery of the central cylindrical portion 2a of the shroud 2 is connected to the central opening of the blower compartment 1. 1a, so the shroud 2 and the blower casing 1 are aligned in the circumferential direction. In other words, there is no difference in level at the parting line of the volute flow path 3. Therefore, it is possible to accurately and easily position and fit and fix the parts.
【００１４】 また、ブロワ車室１とシュラウド２を切削加工する場合、従来のように、その 嵌合部にキーとキー溝をフライス盤等で形成する必要がなく、楕円形の中央開口 部１ａと中央筒部２ａをＮＣ旋盤で一度に加工できるため、加工工数、加工時間 を削減することができる。また、キー及びキー溝を使用しないため、ねじれに対 する強度をより大きくすることができる。[0014] In addition, when cutting the blower casing 1 and shroud 2, it is necessary to There is no need to use a milling machine to form keys and keyways in the mating part, and the oval central opening Since the part 1a and the central cylindrical part 2a can be machined at the same time using an NC lathe, the number of man-hours and processing time can be reduced. can be reduced. Also, since no key or keyway is used, it is resistant to twisting. The intensity can be increased.
【００１５】 このように形成されたスクロールには、シュラウド２の正面中央にタービン６ が配設され、ブロワ車室１の前面にシュラウド２との隙間を閉鎖するように蓋体 ５が取付けられる。[0015] The scroll formed in this way has a turbine 6 in the center of the front of the shroud 2. is arranged, and a lid body is installed in front of the blower compartment 1 to close the gap with the shroud 2. 5 is installed.
【００１６】 上記の実施例では、ブロワ車室１の中央開口部１ａ、及びシュラウド２の中央 筒部２ａの外周部を楕円形としたが、それらの形状は、周方向の位置決めが可能 な形状つまり非円形形状であればよい。[0016] In the above embodiment, the center opening 1a of the blower compartment 1 and the center of the shroud 2 are Although the outer circumference of the cylindrical portion 2a is oval, its shape allows positioning in the circumferential direction. Any shape, that is, a non-circular shape is sufficient.
【００１７】 図３はスクロールの他の実施例を示し、ここでは、ブロワ車室１１の中央開口 部１１ａが略六角形に形成され、シュラウド１２の中央筒部１２ａの外周部がブ ロワ車室１１の中央開口部１１ａに対応した略六角形に形成される。[0017] FIG. 3 shows another embodiment of the scroll, in which the central opening of the blower compartment 11 is The portion 11a is formed into a substantially hexagonal shape, and the outer peripheral portion of the central cylindrical portion 12a of the shroud 12 is formed into a substantially hexagonal shape. It is formed into a substantially hexagonal shape corresponding to the central opening 11a of the lower compartment 11.
【００１８】 このように、シュラウド１２の中央筒部１２ａの外周部と、ブロワ車室１１の 中央開口部１１ａを略六角形とすることによっても、シュラウド１２とブロワ車 室１１が周方向にずれることなく、つまりボリュート流路３の分割線の位置に段 差が生じることなく、正確且つ容易に位置決めを行なって嵌合固定することがで きる。[0018] In this way, the outer peripheral part of the central cylindrical part 12a of the shroud 12 and the blower compartment 11 are connected to each other. By making the central opening 11a substantially hexagonal, the shroud 12 and the blower wheel can be The chamber 11 is not shifted in the circumferential direction, that is, it is stepped at the position of the dividing line of the volute flow path 3. It is possible to accurately and easily position and secure the mating without causing any difference. Wear.
【００１９】 さらに、図４はスクロールの別の実施例を示し、ここでは、ブロワ車室２１の 中央開口部２１ａが略四角形に形成され、シュラウド２２の中央筒部２２ａの外 周部がブロワ車室２１の中央開口部２１ａに対応した略四角形に形成される。[0019] Furthermore, FIG. 4 shows another embodiment of the scroll, here in the blower compartment 21. The central opening 21a is formed into a substantially rectangular shape, and is located outside the central cylindrical portion 22a of the shroud 22. The peripheral portion is formed into a substantially rectangular shape corresponding to the central opening 21a of the blower casing 21.
【００２０】 このように、シュラウド２２の中央筒部２２ａの外周部と、ブロワ車室２１の 中央開口部２１ａを略四角形とすることによっても、シュラウド２２とブロワ車 室２１が周方向にずれることなく、つまりボリュート流路３の分割線の位置に段 差が生じることなく、正確且つ容易に位置決めを行なって嵌合固定することがで きる。[0020] In this way, the outer peripheral part of the central cylindrical part 22a of the shroud 22 and the blower compartment 21 are connected to each other. By making the central opening 21a substantially square, the shroud 22 and the blower wheel can be The chamber 21 is not displaced in the circumferential direction, that is, it is stepped at the position of the dividing line of the volute flow path 3. It is possible to accurately and easily position and secure the mating without causing any difference. Wear.
【００２１】[0021]
以上説明したように、本考案の回転機械のスクロールによれば、ブロワ車室と シュラウドによりボリュート流路が形成される回転機械のスクロールにおいて、 ブロワ車室とシュラウドが別個に形成され、ブロワ車室の中央開口部内にシュラ ウドの中央筒部が嵌合固定され、中央開口部が非円形形状に形成され、シュラウ ドの中央筒部の外周部が中央開口部に対応した非円形形状に形成されるから、製 造工程時にシュラウドとブロワ車室を嵌合する際、シュラウドとブロワ車室が周 方向にずれることなく、つまりボリュート流路の分割線の位置に段差が生じるこ となく、正確且つ容易に位置決めを行なって嵌合固定することができる。 As explained above, according to the scroll of the rotating machine of the present invention, the blower compartment and In a scroll of a rotating machine where a volute flow path is formed by a shroud, The blower compartment and shroud are formed separately, and the shroud is installed within the central opening of the blower compartment. The central cylindrical part of the shroud is fitted and fixed, and the central opening is formed into a non-circular shape. Since the outer periphery of the central cylindrical part of the door is formed into a non-circular shape that corresponds to the central opening, it is easy to manufacture. When fitting the shroud and blower casing during the manufacturing process, the shroud and blower casing are without shifting in the direction, that is, without creating a step at the parting line of the volute flow path. Therefore, positioning can be performed accurately and easily, and the fitting and fixation can be performed accurately and easily.
【００２２】 また、ブロワ車室とシュラウドを切削加工する場合、従来のように、その嵌合 部にキーとキー溝をフライス盤等で形成する必要がなく、中央開口部と中央筒部 をＮＣ旋盤などで一度に加工できるため、加工工数、加工時間を削減することが できる。また、ブロワ車室とシュラウドの嵌合にキー及びキー溝を使用しないた め、ねじれに対する強度をより大きくすることができる。[0022] In addition, when machining the blower casing and shroud, it is necessary to There is no need to use a milling machine to form keys and keyways in the central opening and central cylinder. can be machined at once using an NC lathe, etc., reducing the number of man-hours and processing time. can. Also, since a key and keyway are not used to fit the blower compartment and shroud, Therefore, the strength against torsion can be increased.
【図１】スクロールの正面図である。FIG. 1 is a front view of a scroll.
【図２】図１のII−II断面図である。FIG. 2 is a sectional view taken along line II-II in FIG. 1;
【図３】他の実施例のスクロールの正面図である。FIG. 3 is a front view of a scroll according to another embodiment.
【図４】別の実施例のスクロールの正面図である。FIG. 4 is a front view of a scroll according to another embodiment.
１−ブロワ車室、２−シュラウド、３−ボリュート流
路、１ａ−中央開口部、２ａ−中央筒部。1-Blower casing, 2-Shroud, 3-Volute passage, 1a-Central opening, 2a-Central cylinder part.
Claims (1)
ト流路が形成される回転機械のスクロールにおいて、該
ブロワ車室と該シュラウドが別個に形成され、該ブロワ
車室の中央開口部内に該シュラウドの中央筒部が嵌合固
定され、該中央開口部が非円形形状に形成され、該シュ
ラウドの中央筒部の外周部が該中央開口部に対応した非
円形形状に形成されていることを特徴とする回転機械の
スクロール。Claim 1: In a scroll for a rotating machine in which a volute flow path is formed by a blower casing and a shroud, the blower casing and the shroud are formed separately, and the center of the shroud is located within a central opening of the blower casing. The cylindrical portions are fitted and fixed, the central opening is formed in a non-circular shape, and the outer periphery of the central cylindrical portion of the shroud is formed in a non-circular shape corresponding to the central opening. Scroll of rotating machinery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2912891U JPH04123303U (en) | 1991-04-25 | 1991-04-25 | rotating machine scroll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2912891U JPH04123303U (en) | 1991-04-25 | 1991-04-25 | rotating machine scroll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04123303U true JPH04123303U (en) | 1992-11-09 |
Family
ID=31913043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2912891U Withdrawn JPH04123303U (en) | 1991-04-25 | 1991-04-25 | rotating machine scroll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04123303U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003503631A (en) * | 1999-06-30 | 2003-01-28 | アライドシグナル インコーポレイテッド | Precisely spiral die-cast compressor housing for centrifugal compressors |
-
1991
- 1991-04-25 JP JP2912891U patent/JPH04123303U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003503631A (en) * | 1999-06-30 | 2003-01-28 | アライドシグナル インコーポレイテッド | Precisely spiral die-cast compressor housing for centrifugal compressors |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19950713 |