JPH0255638B2 - - Google Patents
Info
- Publication number
- JPH0255638B2 JPH0255638B2 JP16657085A JP16657085A JPH0255638B2 JP H0255638 B2 JPH0255638 B2 JP H0255638B2 JP 16657085 A JP16657085 A JP 16657085A JP 16657085 A JP16657085 A JP 16657085A JP H0255638 B2 JPH0255638 B2 JP H0255638B2
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical
- lid
- cylindrical part
- convex
- vane
- 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
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、車両用内燃機関への二次空気導入装
置や過給機として主に用いられるベーン式エアー
ポンプ製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a vane-type air pump that is mainly used as a secondary air introduction device or a supercharger for a vehicle internal combustion engine.
第７図、第８図はベーン式エアーポンプの一例
を示す。図面において、ケーシング１内に円筒状
室２を形成し、この円筒状室２に円筒状室２の軸
心に対して回転軸心を偏心させて回転子３を設
け、この回転子３は筒状部７と蓋部８とから成
り、ケーシング１の端壁に軸受を介して回転可能
に支持されている。そして、ケーシング１に一端
が固着され、円筒状室２と同心に回転子３内を伸
びるベーン軸９に、回転子に形成した長孔１０を
貫通して伸びるベーン１２が軸受１７を介して回
転可能に支持されており、回転子３の長孔１０に
は、一方がバネ部材１６により弾発された一対の
シール部材１１が設けられ、このシール部材１１
がベーン１２側面に当接して気密性を得ている。
そして、円筒状室２には回転子３と極僅かの隙間
を隔てたランド部１３で仕切られた吸入室１４と
吐出室１５とが開口しており、回転子３が回転
し、それに伴つてベーン１２が回転することでポ
ンプ作用を行うものである。このベーン式エアー
ポンプの製造方法としては、回転子３の筒状室７
に凸部２０を形成しておくと共に、蓋部８にもこ
の凸部２０と係合する凹部２２を形成しておき、
ポンプを組み立てる前に予め筒状室７と蓋部８と
を凹凸嵌合してネジ２４で固着し、その状態で筒
状室７と蓋部８との外周を共加工し、その後筒状
室７と蓋部８とを分離し、筒状室７をケーシング
１内に納め、ベーン１２を筒状部７内に挿入して
蓋部８を筒状部７に再度凹凸嵌合してネジ２４で
固着するものである。上記の如く予め筒状部７と
蓋部８とを凸部２０と凹部２２とで位置決めして
ネジ２４で固着し、外周部を同時に共加工するの
は、回転子３の一端が蓋部８によりケーシング１
に支持されて回転するので、蓋部８と筒状部７と
は同一筒面であることが必要なためである。
7 and 8 show an example of a vane type air pump. In the drawing, a cylindrical chamber 2 is formed in a casing 1, and a rotor 3 is provided in this cylindrical chamber 2 with its rotational axis being eccentric with respect to the axis of the cylindrical chamber 2. It consists of a shaped part 7 and a lid part 8, and is rotatably supported on the end wall of the casing 1 via a bearing. A vane 12 extends through a long hole 10 formed in the rotor and rotates via a bearing 17 on a vane shaft 9 that is fixed at one end to the casing 1 and extends inside the rotor 3 concentrically with the cylindrical chamber 2. A pair of seal members 11, one of which is resiliently supported by a spring member 16, are provided in the elongated hole 10 of the rotor 3.
is in contact with the side surface of the vane 12 to obtain airtightness.
In the cylindrical chamber 2, a suction chamber 14 and a discharge chamber 15 are opened, which are separated by a land portion 13 separated from the rotor 3 by a very small gap. The rotation of the vane 12 performs a pumping action. As a manufacturing method of this vane type air pump, the cylindrical chamber 7 of the rotor 3 is
A convex portion 20 is formed in the lid portion 8, and a concave portion 22 that engages with the convex portion 20 is also formed in the lid portion 8.
Before assembling the pump, the cylindrical chamber 7 and the lid part 8 are fitted in a concave-convex manner and fixed with screws 24, and in this state, the outer circumferences of the cylindrical chamber 7 and the lid part 8 are co-processed, and then the cylindrical chamber 7 and the lid part 8 are assembled. 7 and the lid part 8 are separated, the cylindrical chamber 7 is housed in the casing 1, the vane 12 is inserted into the cylindrical part 7, the lid part 8 is refitted into the cylindrical part 7, and the screw 24 is inserted. It is something that sticks. As described above, the cylindrical part 7 and the lid part 8 are positioned in advance by the convex part 20 and the recessed part 22 and fixed with the screws 24, and the outer peripheral part is co-processed at the same time. By casing 1
This is because the lid part 8 and the cylindrical part 7 need to have the same cylindrical surface since the lid part 8 and the cylindrical part 7 rotate while being supported by the cylinder.
（発明が解決しようとする問題点）
前述の如く筒状部７と蓋部８とは１度凹凸嵌合
した後に、分離して再度凹凸嵌合させるために、
筒状部７の凸部２０と蓋部８の凹部２２とは係合
した時に僅かに隙間のある遊合関係でなければな
らず、実際には筒状部７の凸部２０や蓋部８の凹
部２２には位置や形状に加工誤差が生じ、しかも
筒状部７にはベーン１２が貫通する長孔１０が形
成されているので、筒状部７の端部は径が変化し
易いことも相俟つて、凸部２０と凹部２２が嵌合
した時にガタがあると、筒状部７と蓋部８とを共
加工して、再度筒状部７に蓋部８を組み付けた時
に、凹部２２内で凸部２０がずれてしまい、加工
時の円筒面を再現することが出来ないという問題
がある。このために、蓋部８に対して筒状部７が
ずれてしまい、筒状部７がランド部１３に接触し
て回転不良を生じたり、筒状部７とランド部１３
との間に隙間が多くなつて、吐出室１５から吸入
室１４へ空気が漏れてしまい、ポンプ効率が低下
するという不都合があつた。(Problems to be Solved by the Invention) As mentioned above, after the cylindrical portion 7 and the lid portion 8 are once fitted in the concave and convex manner, they are separated and fitted again in the concave and convex manner.
The convex part 20 of the cylindrical part 7 and the concave part 22 of the lid part 8 must have a loose relationship with a slight gap when they are engaged. Processing errors occur in the position and shape of the concave portion 22, and since the long hole 10 through which the vane 12 passes is formed in the cylindrical portion 7, the diameter of the end portion of the cylindrical portion 7 is likely to change. In addition, if there is play when the convex part 20 and the concave part 22 are fitted together, when the cylindrical part 7 and the lid part 8 are co-processed and the lid part 8 is reassembled to the cylindrical part 7, There is a problem in that the convex portion 20 is displaced within the concave portion 22, making it impossible to reproduce the cylindrical surface during processing. For this reason, the cylindrical part 7 may shift relative to the lid part 8, and the cylindrical part 7 may come into contact with the land part 13 and cause rotation failure, or the cylindrical part 7 and the land part 13 may
As a result, air leaks from the discharge chamber 15 to the suction chamber 14, resulting in a reduction in pump efficiency.
本発明はこれらの点に鑑みなされたもので、回
転子の筒状部と蓋部とを一度分離して再度凹凸嵌
合する際に、その外周円筒面の再現性が良く、上
述の不都合を生じないベーン式エアーポンプの製
造方法を提供することを目的とする。 The present invention has been made in view of these points, and when the rotor's cylindrical portion and the lid portion are once separated and then re-fitted into the concave and convex portions, the reproducibility of the outer cylindrical surface is good, and the above-mentioned disadvantages can be avoided. An object of the present invention is to provide a method for manufacturing a vane type air pump that does not cause air pollution.
本発明を実施例に対応する添付図面により説明
する。本発明は、回転子３の筒状部７と蓋部８と
を凹凸嵌合させ、その状態で外周部を共加工し、
次に筒状部７と蓋部８とを分離させ、該筒状部７
をケーシング１内に納め、筒状部７内にベーン１
２を挿入し、この後、筒状部７と蓋部８とを再度
凹凸嵌合させるベーン式エアーポンプの製造方法
において、前記筒状部７の凸部２０に予め傾斜部
２１を形成しておくと共に、前記蓋部８の凹部２
２にも予め傾斜部２３を形成しておき、前記傾斜
部２１，２３のクサビ作用により凸部２０を凹部
２２の外周又は内周に圧接させて筒状部７と蓋部
８とを嵌合し、この状態で筒状部７と蓋部８とを
外周を共加工するものである。
The invention will be explained with reference to the accompanying drawings which correspond to embodiments. In the present invention, the cylindrical portion 7 of the rotor 3 and the lid portion 8 are fitted into a concave-convex shape, and the outer peripheral portion is co-processed in this state.
Next, the cylindrical part 7 and the lid part 8 are separated, and the cylindrical part 7 is
is placed in the casing 1, and the vane 1 is placed in the cylindrical part 7.
2, and then the cylindrical part 7 and the lid part 8 are re-fitted into the concave and convex parts. In addition, the recess 2 of the lid portion 8
2 is also formed in advance with an inclined part 23, and the wedge action of the inclined parts 21 and 23 brings the convex part 20 into pressure contact with the outer periphery or inner periphery of the recessed part 22, thereby fitting the cylindrical part 7 and the lid part 8. In this state, the outer peripheries of the cylindrical portion 7 and the lid portion 8 are co-processed.
本発明は前述の如くであるから、筒状部７の凸
部２０と蓋部８の凹部２２に予め形成された傾斜
部２１，２３が圧接してクサビ作用により筒状部
７の凸部２０が凹部２２外周又は内周に圧接した
状態で位置決めされて、外周が同一円筒面に加工
される。そして、再度筒状部７と蓋部８とを嵌合
した場合には、同様に傾斜部２１，２３のクサビ
作用により凸部２０が凹部２２外周又は内周に圧
接して、加工時の円筒面を再現する。
Since the present invention is as described above, the inclined parts 21 and 23 formed in advance on the convex part 20 of the cylindrical part 7 and the concave part 22 of the lid part 8 come into pressure contact with each other, so that the convex part 20 of the cylindrical part 7 is positioned in pressure contact with the outer periphery or inner periphery of the recess 22, and the outer periphery is processed into the same cylindrical surface. When the cylindrical part 7 and the lid part 8 are fitted together again, the convex part 20 comes into pressure contact with the outer periphery or inner periphery of the recessed part 22 due to the wedge action of the inclined parts 21 and 23, so that the cylinder during machining is Reproduce the surface.
添付図面に基づいて本発明実施例を説明する。
第１図に示す如く、回転子３の筒状部７に凸部２
０が形成され、蓋部８には凸部２０と係合する凹
部２２が形成されている。そして、第３図に示す
如く筒状部７の凸部２０には傾斜部２１が形成さ
れ、蓋部８の凹部２２にも傾斜部２３が形成され
ている。筒状部７と蓋部８とを嵌合すると、凸部
２０と凹部２２とは遊合関係であるため隙間ｄが
生じることになるが、第２図に示す如く、筒状部
７と蓋部８とをネジ２４により固着すると、第４
図に示す如く傾斜部２１，２３は圧接してクサビ
作用により凸部２０外周と凹部２２内周とが圧接
した状態となり、この時ネジ２４の力で傾斜部２
１，２３が圧接するため、傾斜部２１，２３は時
として塑性変形を生じて凸部２０と凹部２２とが
嵌合した状態となる。そして、第５図に示す如
く、筒状部７と蓋部８とを同心上で回転させて、
バイト２５で同時に円筒面を仕上げる。そして、
蓋部８と筒状部７とを分離して第６図の如く、筒
状部７をケーシング１内に納めて、筒状部７にベ
ーン１２を挿入する。この後に蓋部８を筒状部７
に嵌合固着する。この時に筒状部７の凸部２０と
蓋部８の凹部２２は、第４図に示す状態となり、
傾斜部２１，２３が係合して加工時と同一の状態
を得られるので、筒状部７と蓋部８とは同一筒面
を再現する。したがつて、第７図、第８図に示す
如くポンプ完成時には回転子３を位置決めする蓋
部８と筒状部７とが同一円筒面となるので、筒状
部７とランド部１３との適正な隙間を得られ、ポ
ンプ効率の低下や筒状部７とランド部１３の接触
による回転不良が防止される。
Embodiments of the present invention will be described based on the accompanying drawings.
As shown in FIG.
0 is formed, and the lid portion 8 is formed with a recess 22 that engages with the projection 20. As shown in FIG. 3, the convex portion 20 of the cylindrical portion 7 is formed with an inclined portion 21, and the recessed portion 22 of the lid portion 8 is also formed with an inclined portion 23. When the cylindrical part 7 and the lid part 8 are fitted together, a gap d is created because the convex part 20 and the recessed part 22 are in a loose relationship, but as shown in FIG. When the part 8 is fixed with the screw 24, the fourth
As shown in the figure, the inclined portions 21 and 23 are pressed against each other, and the outer periphery of the convex portion 20 and the inner periphery of the recessed portion 22 are brought into pressure contact due to the wedge action.
1 and 23 are in pressure contact with each other, the inclined portions 21 and 23 sometimes undergo plastic deformation, resulting in a state in which the convex portion 20 and the concave portion 22 are fitted. Then, as shown in FIG. 5, the cylindrical part 7 and the lid part 8 are rotated concentrically,
Finish the cylindrical surface at the same time using the cutting tool 25. and,
The lid part 8 and the cylindrical part 7 are separated, the cylindrical part 7 is housed in the casing 1, and the vane 12 is inserted into the cylindrical part 7, as shown in FIG. After this, the lid part 8 is attached to the cylindrical part 7.
Fits and secures. At this time, the convex part 20 of the cylindrical part 7 and the concave part 22 of the lid part 8 are in the state shown in FIG.
Since the inclined parts 21 and 23 are engaged to obtain the same state as during processing, the cylindrical part 7 and the lid part 8 reproduce the same cylindrical surface. Therefore, as shown in FIGS. 7 and 8, when the pump is completed, the lid part 8 for positioning the rotor 3 and the cylindrical part 7 have the same cylindrical surface, so that the cylindrical part 7 and the land part 13 are A proper clearance can be obtained, and a decrease in pump efficiency and rotation failure due to contact between the cylindrical part 7 and the land part 13 can be prevented.
本発明は前述の如くであるから、ベーン式エア
ーポンプにおいて、回転子の筒状部と蓋部とを予
め嵌合して外周面を共加工した後に、再度組み直
しても加工時と同じ筒状部と蓋部との円筒面を再
現することが出来、ポンプ完成時には回転子とラ
ンド部との適正な隙間を得ることが出来るので、
ポンプ効率の低下や回転不良を生じることがな
い。
Since the present invention is as described above, in a vane type air pump, after the cylindrical part of the rotor and the lid part are fitted together in advance and the outer circumferential surface is co-processed, even if they are reassembled, the cylindrical shape remains the same as that at the time of processing. It is possible to reproduce the cylindrical surface of the part and the lid part, and when the pump is completed, it is possible to obtain an appropriate gap between the rotor and the land part.
There is no reduction in pump efficiency or rotation failure.
第１図乃至第６図は本発明実施例を示し、第１
図は回転子の筒状部と蓋部との嵌合前の状態を示
す断面図、第２図は筒状部と蓋部との嵌合状態を
示す断面図、第３図は筒状部の凸部と蓋部の凹部
とを示す要部拡大断面図、第４図は筒状部の凸部
と蓋部の凹部の係合状態を示す要部拡大断面図、
第５図は筒状部と蓋部との同時加工の一例を示す
断面図、第６図はベーン式エアーポンプの組み付
け状態を示す断面図、第７図はベーン式エアーポ
ンプの一例を示す縦断面図、第８図は第７図Ａ−
Ａ線に沿う断面図である。
符号の説明、１……ケーシング、２……円筒状
室、３……回転子、７……筒状部、８……蓋部、
９……ベーン軸、１０……長孔、１１……シール
部材、１２……ベーン、２０……筒状部の凸部、
２１……凸部の傾斜部、２２……蓋部の凹部、２
３……凹部の傾斜部、２４……ネジ。
1 to 6 show embodiments of the present invention.
The figure is a sectional view showing the state before the cylindrical part of the rotor and the lid are fitted together, FIG. 2 is a sectional view showing the fitted state of the cylindrical part and the lid, and FIG. FIG. 4 is an enlarged cross-sectional view of the main part showing the convex part of the cylindrical part and the recess of the lid part, FIG.
Fig. 5 is a sectional view showing an example of simultaneous machining of a cylindrical part and a lid part, Fig. 6 is a sectional view showing an assembled state of a vane type air pump, and Fig. 7 is a longitudinal sectional view showing an example of a vane type air pump. Top view, Figure 8 is Figure 7A-
It is a sectional view along the A line. Explanation of symbols, 1...Casing, 2...Cylindrical chamber, 3...Rotor, 7...Cylindrical part, 8...Lid part,
9... Vane shaft, 10... Long hole, 11... Seal member, 12... Vane, 20... Convex part of cylindrical part,
21... Inclined part of the convex part, 22... Recessed part of the lid part, 2
3... Inclined part of the recess, 24... Screw.
Claims (1)
せ、その状態で外周部を共加工し、次に筒状部７
と蓋部８とを分離させ、該筒状部７をケーシング
１内に納め、筒状部７内にベーン１２を挿入し、
この後、筒状部７と蓋部８とを再度凹凸嵌合させ
るベーン式エアーポンプの製造方法において、前
記筒状部７の凸部２０に予め傾斜部２１を形成し
ておくと共に、前記蓋部８の凹部２２にも予め傾
斜部２３を形成しておき、前記傾斜部２１，２３
のクサビ作用により凸部２０を凹部２２の外周又
は内周に圧接させて筒状部７と蓋部８とを嵌合
し、この状態で筒状部７と蓋部８との外周を共加
工することを特徴とするベーン式エアーポンプの
製造方法。1. The cylindrical part 7 and the lid part 8 of the rotor 3 are fitted into a concave-convex manner, and in this state, the outer peripheral part is co-processed, and then the cylindrical part 7 is
and the lid part 8 are separated, the cylindrical part 7 is housed in the casing 1, the vane 12 is inserted into the cylindrical part 7,
After that, in the method for manufacturing a vane air pump in which the cylindrical part 7 and the lid part 8 are re-fitted into convexes and convexes, an inclined part 21 is formed in advance on the convex part 20 of the cylindrical part 7, and the lid part 8 is A sloped portion 23 is also formed in advance in the recessed portion 22 of the portion 8, and the sloped portions 21, 23
The convex part 20 is brought into pressure contact with the outer periphery or inner periphery of the recessed part 22 by the wedge action, and the cylindrical part 7 and the lid part 8 are fitted together, and in this state, the outer peripheries of the cylindrical part 7 and the lid part 8 are co-processed. A method for manufacturing a vane type air pump characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16657085A JPS6226392A (en) | 1985-07-26 | 1985-07-26 | Manufacture of vane type air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16657085A JPS6226392A (en) | 1985-07-26 | 1985-07-26 | Manufacture of vane type air pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6226392A JPS6226392A (en) | 1987-02-04 |
| JPH0255638B2 true JPH0255638B2 (en) | 1990-11-27 |
Family
ID=15833709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16657085A Granted JPS6226392A (en) | 1985-07-26 | 1985-07-26 | Manufacture of vane type air pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6226392A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01290750A (en) * | 1988-05-17 | 1989-11-22 | Mitsubishi Steel Mfg Co Ltd | High-strength, high-toughness steel for leaf springs |
| JP5638261B2 (en) | 2010-02-18 | 2014-12-10 | 三菱重工業株式会社 | Fluid coupling |
-
1985
- 1985-07-26 JP JP16657085A patent/JPS6226392A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6226392A (en) | 1987-02-04 |
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