JPH0259312B2 - - Google Patents
Info
- Publication number
- JPH0259312B2 JPH0259312B2 JP4273182A JP4273182A JPH0259312B2 JP H0259312 B2 JPH0259312 B2 JP H0259312B2 JP 4273182 A JP4273182 A JP 4273182A JP 4273182 A JP4273182 A JP 4273182A JP H0259312 B2 JPH0259312 B2 JP H0259312B2
- Authority
- JP
- Japan
- Prior art keywords
- crankshaft
- eccentric
- shaft portion
- orbiting
- main shaft
- 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
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
- F01C21/102—Adjustment of the interstices between moving and fixed parts of the machine by means other than fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
- F04C29/0057—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions for eccentric movement
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Rotary Pumps (AREA)
Description
【発明の詳細な説明】
本発明は、旋回スクロールをクランク軸により
駆動するスクロール圧縮機に係り、特にクランク
軸に対する旋回スクロール部材の偏心量を自動的
に調整可能にし、固定および旋回両スクロール部
材のラツプ同士の密封性を高めたスクロール圧縮
機に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a scroll compressor in which an orbiting scroll is driven by a crankshaft, and in particular, it is possible to automatically adjust the amount of eccentricity of an orbiting scroll member with respect to the crankshaft, and it is possible to automatically adjust the eccentricity of an orbiting scroll member with respect to the crankshaft. This relates to a scroll compressor with improved sealing between wraps.
従来のスクロール圧縮機において、旋回半径が
可変な駆動方法としてスウイングリンク方式があ
る。この方式はクランクピン部と旋回スクロール
中心部とをそれぞれ回転自在に支持する連接棒で
つなぎ、クランク軸が回転すると旋回スクロール
部材が連接棒を介して引張られるように旋回す
る。この時、旋回スクロール部材には遠心力が働
き、旋回スクロール部材のラツプが固定スクロー
ル部材のラツプに対し押しつけられて旋回する。 In conventional scroll compressors, there is a swing link method as a drive method that allows the radius of gyration to be varied. In this system, the crank pin part and the center part of the orbiting scroll are connected by a connecting rod that is rotatably supported, and when the crankshaft rotates, the orbiting scroll member is pulled by the connecting rod and rotates. At this time, centrifugal force acts on the orbiting scroll member, and the lap of the orbiting scroll member is pressed against the lap of the fixed scroll member, causing the orbiting scroll member to rotate.
しかしながら、この方式は形状や構造が複雑で
加工費も高くつく問題点を有する。 However, this method has the problem that the shape and structure are complicated and the processing cost is high.
本発明は上記に鑑みて発明されたもので、加工
上の寸法誤差や形状誤差があつても自動的に固定
スクロールのラツプに旋回スクロールのラツプが
ならつて旋回し、選択嵌合などの組立てのむずか
しさがなく、また旋回運動に伴う両ラツプ間の密
封部位における両ラツプ間にすきまがなくなり、
洩れが少ない性能のよいスクロール圧縮機を提供
することを目的とする。 The present invention was invented in view of the above, and even if there is a dimensional error or a shape error during processing, the lap of the orbiting scroll automatically aligns with the lap of the fixed scroll and rotates, thereby facilitating assembly such as selective fitting. There is no difficulty, and there is no gap between the two laps at the sealing part between the two laps due to the turning movement.
The purpose is to provide a scroll compressor with good performance and less leakage.
上記目的を達成するため本発明は、鏡板にうず
巻状のラツプを直立してなる固定スクロール部材
および旋回スクロール部材を備え、両スクロール
部材を互いに噛合せて圧縮室を形成し、旋回駆動
手段により固定スクロール部材に対し旋回スクロ
ール部材を自転することなく旋回運動させ、圧縮
室の容積を漸次減少して圧縮作用を行なうスクロ
ール圧縮機において、上記旋回駆動手段は、主軸
部、該主軸部に対し偏心した円板部および該円板
部と同心の偏心軸部を含むクランク軸と、該クラ
ンク軸の偏心軸部に遊嵌されるべき孔と同心のつ
ば部および旋回スクロール部材の軸受に軸受され
るべき偏心筒部を含む円筒部材と、を備え該円筒
部材をクランク軸の偏心軸部に遊嵌して上記円板
部上に受止させ、クランク軸の主軸部を取巻いて
一端を円筒部材側に他端をクランク軸側にそれぞ
れ係止するバネを設け、円筒部材にその偏心軸部
の主軸部に対する偏心量を大きくする方向の回動
力を付与するようにしたことを特徴とするもので
ある。 In order to achieve the above object, the present invention includes a fixed scroll member and an orbiting scroll member each having a spiral wrap standing upright on an end plate, the scroll members being engaged with each other to form a compression chamber, and an orbiting driving means. In a scroll compressor in which an orbiting scroll member is orbited with respect to a fixed scroll member without rotating, and compression is performed by gradually reducing the volume of a compression chamber, the orbit drive means includes a main shaft portion, an eccentric member with respect to the main shaft portion, A crankshaft including a circular disk portion and an eccentric shaft portion concentric with the disk portion, a collar portion concentric with a hole to be loosely fitted into the eccentric shaft portion of the crankshaft, and a bearing of an orbiting scroll member. a cylindrical member including an eccentric cylindrical portion; the cylindrical member is loosely fitted onto the eccentric shaft portion of the crankshaft and is received on the disk portion; It is characterized in that a spring is provided on each side to lock the other end to the crankshaft side, and a rotational force is applied to the cylindrical member in the direction of increasing the amount of eccentricity of the eccentric shaft portion with respect to the main shaft portion. be.
以下本発明の一実施例を図面に基づき説明す
る。 An embodiment of the present invention will be described below based on the drawings.
第１図はスクロール圧縮機の全体構造を示して
いる。スクロール圧縮機は、固定スクロール部材
２と旋回スクロール部材３とからなる圧縮機部、
旋回スクロール部材２を旋回させるクランク軸６
および電動機５などを主な構成要素とし、これら
をケーシング１内に収容して構成されている。ガ
スか吸入管２１から吸入され、固定および旋回両
スクロール部材が形成する圧縮室４で圧縮されて
ケーシング１内に吐出され、吐出管２２から機外
へ吐出される。 FIG. 1 shows the overall structure of a scroll compressor. The scroll compressor includes a compressor section consisting of a fixed scroll member 2 and an orbiting scroll member 3;
Crankshaft 6 that rotates the orbiting scroll member 2
The main components are a motor 5 and an electric motor 5, and these are housed in a casing 1. Gas is sucked in through the suction pipe 21, compressed in the compression chamber 4 formed by both the fixed and orbiting scroll members, discharged into the casing 1, and discharged out of the machine from the discharge pipe 22.
本実施例の特徴はクランク軸６にあり、その構
成および作用を第２図ないし第８図に基づいて説
明する。 The feature of this embodiment is the crankshaft 6, whose structure and operation will be explained based on FIGS. 2 to 8.
第３図ａ，ｂはクランク軸６を示し、同図ａは
平面図、同図ｂは縦断面図である。クランク軸６
は、主軸部６ａ、円板部６ｃおよび偏心軸部６ｂ
を含み主軸部６ａの上部にその軸心０1より偏心
した軸心０2をもつ偏心軸部６ｂを突設し、主軸
部６ａと偏心軸部６ｂの連設部に偏心軸部６ｂと
同心の円板部６ｃを有し、円板部６ｃには円弧状
に長孔を形成した円弧孔６ｄおよびピン孔６ｅを
穿つている。 Figures 3a and 3b show the crankshaft 6, with figure a being a plan view and figure b being a longitudinal sectional view. crankshaft 6
The main shaft portion 6a, the disc portion 6c, and the eccentric shaft portion 6b
An eccentric shaft portion 6b having an axis 0 2 eccentric from the axis 0 1 thereof is provided protrudingly from the upper part of the main shaft portion 6a, and an eccentric shaft portion 6b concentric with the eccentric shaft portion 6b is provided at the connecting portion of the main shaft portion 6a and the eccentric shaft portion 6b. The disc part 6c has a circular arc hole 6d and a pin hole 6e.
第２図ａ，ｂは円筒部材７を示し、該円筒部材
７の偏心円筒部７ａはクランク軸６の偏心軸部６
ｂに遊嵌される孔７ｂを穿ち該孔７ｂの中心０3
より偏心した軸心０4をもつ偏心状の外径を有す
る円筒に形成され、下縁部に孔７ｂと同心のつば
部７ｃを突出し、上記の円弧孔６ｄに対向する位
置にピン孔７ｄを穿つている。なお、偏心円筒部
７ａは旋回スクロール部材２の軸受に軸受され
る。 2a and 2b show a cylindrical member 7, and the eccentric cylindrical portion 7a of the cylindrical member 7 is the eccentric shaft portion 6 of the crankshaft 6.
Drill a hole 7b that is loosely fitted into hole 7b, and set the center of hole 7b at 0 3
It is formed into a cylinder having an eccentric outer diameter with a more eccentric axis 0 4 , a flange 7 c concentric with the hole 7 b protrudes from the lower edge, and a pin hole 7 d is provided at a position opposite to the circular arc hole 6 d. I'm wearing it. Note that the eccentric cylindrical portion 7a is supported by a bearing of the orbiting scroll member 2.
第４図はピン孔７ｄに挿入されるピン、第６図
はピン孔６ｅに挿入されるピンを示す。 FIG. 4 shows the pin inserted into the pin hole 7d, and FIG. 6 shows the pin inserted into the pin hole 6e.
第５図はバネで、主軸６ａより大径の円形に形
成されたバネ８の両端を曲折して係止部８ａ，８
ｂを形成している。 FIG. 5 shows a spring, in which both ends of a spring 8 formed into a circle with a larger diameter than the main shaft 6a are bent to form locking portions 8a, 8.
It forms b.
上記各部品は第７図に示すように組付けられ
る。すなわち、クランク軸６の偏心軸部６ｂに円
筒部材７が遊嵌され、ピン９およびピン１０は、
それぞれつば部７ｃのピン孔７ｄおよび円板部６
ｃのピン孔６ｅに圧入固定され、ピン９は円弧孔
６ｄを貫通し、両ピン９，１０の先端に主軸部６
ａを取巻いたバネ８の各端の係止部８ａ，８ｂが
係止される。 The above parts are assembled as shown in FIG. That is, the cylindrical member 7 is loosely fitted to the eccentric shaft portion 6b of the crankshaft 6, and the pins 9 and 10 are
The pin hole 7d of the collar portion 7c and the disc portion 6, respectively.
The pin 9 is press-fitted into the pin hole 6e of c, and the pin 9 passes through the circular arc hole 6d, and the main shaft portion 6 is attached to the tips of both pins 9 and 10.
The locking portions 8a and 8b at each end of the spring 8 surrounding the spring 8 are locked.
以上のように組付けられると、バネ８の力によ
り、円筒部材７は偏心軸部６ｂに対し、第７図ａ
および第８図でみて時計方向に回るような作用力
を受ける。円筒部材７が孔７ｂの中心０3（偏心軸
部６ｂの中心０2に一致）を中心として、時計方
向に角度αだけ回転するとき、偏心軸部７ａの中
心は０4から０4′に移動する。このとき、主軸部
６ａの中心０1と偏心筒部７ａの中心との距離、
すなわち旋回スクロールの旋回半径はｌからl′に
増大する。旋回半径は、旋回スクロール部材のラ
ツプが固定スクロール部材のラツプに密着するま
で増大し、角度αはこのときの回転角になる。 When assembled as described above, the force of the spring 8 causes the cylindrical member 7 to move against the eccentric shaft portion 6b as shown in FIG.
And, as seen in FIG. 8, it receives an acting force that causes it to rotate clockwise. When the cylindrical member 7 rotates clockwise by an angle α about the center 0 3 of the hole 7b (coinciding with the center 0 2 of the eccentric shaft 6b), the center of the eccentric shaft 7a changes from 0 4 to 0 4 '. Moving. At this time, the distance between the center 01 of the main shaft portion 6a and the center of the eccentric cylinder portion 7a,
That is, the orbiting radius of the orbiting scroll increases from l to l'. The radius of gyration increases until the lap of the orbiting scroll member is in close contact with the lap of the fixed scroll member, and angle α is then the angle of rotation.
このクランク軸を組み込んだスクロール圧縮機
は、旋回スクロールのラツプが固定スクロールの
ラツプにならつて旋回する。 In a scroll compressor incorporating this crankshaft, the lap of the orbiting scroll follows the lap of the fixed scroll.
以上説明したように本発明によれば、偏心軸部
６ｂの偏心半径を設計値の通りに製作しておけ
ば、スクロールの加工誤差により、スクロールラ
ツプの歯厚や形状に多少の加工誤差が生じても、
偏心半径は常に旋回スクロール部材のラツプを固
定スクロール部材のラツプに対し半径方向にある
押し付け力で密着させるように自動的に調整され
るから、数種類のクランク軸を作つて選択嵌合を
するような手間や費用がかからず、しかも洩れの
少ない性能の良いスクロール圧縮機を提供でき
る。 As explained above, according to the present invention, if the eccentric radius of the eccentric shaft portion 6b is manufactured according to the designed value, there will be some processing errors in the tooth thickness and shape of the scroll lap due to processing errors of the scroll. Even if it occurs,
Since the eccentric radius is always automatically adjusted so that the lap of the orbiting scroll member is brought into close contact with the lap of the fixed scroll member with a certain pressing force in the radial direction, it is possible to make several types of crankshafts and selectively fit them. It is possible to provide a high-performance scroll compressor that does not require much effort or cost and has little leakage.
ちなみに同様の目的の達成するものにスウイン
グリング方式があるが、形状や構造が複雑であ
る。これに対し、本発明によるクランク軸および
円筒部材はすべて、円筒形状の簡単な構造で例え
ば、主に旋盤で加工でき、加工費が安いなどの利
点がある等の効果をも併せ有する。 Incidentally, there is a swing ring system that achieves a similar purpose, but its shape and structure are complicated. In contrast, all the crankshafts and cylindrical members according to the present invention have the advantage that they have a simple cylindrical structure, can be machined mainly with a lathe, and have low processing costs.
第１図はスクロール圧縮機の全体構造の縦断面
図、第２図ないし第８図は本発明の一実施例の駆
動機構の図で、第２図ａ，ｂは円筒部材を示し、
ａ図は平面図、ｂ図は縦断面図、第３図ａ，ｂは
クランク軸を示し、ａ図は平面図、ｂは一部を破
断した正面図、第４図はピンを示す。第５図ａ，
ｂはバネを示し、ａ図は平面図、ｂ図は正面図、
第６図はピンを示す。第７図は駆動機構の組立図
を示し、第８図は偏心半径の調整を説明する図で
ある。
１……密閉容器、２……固定スクロール部材、
３……旋回スクロール部材、４……圧縮室、５…
…電動機、６……クランク軸、６ａ……主軸、６
ｂ……偏心軸、６ｃ……円板、６ｄ……円弧孔、
６ｃ……ピン孔、７……円筒部材、７ａ……偏心
円筒、７ｂ……孔、７ｃ……つば、７ｄ……ピン
孔、８……バネ、８ａ，８ｂ……係止部、９，１
０……ピン、２１……吸入管、２２……吐出管。
FIG. 1 is a vertical sectional view of the overall structure of a scroll compressor, FIGS. 2 to 8 are views of a drive mechanism according to an embodiment of the present invention, and FIGS. 2a and 2b show a cylindrical member,
Figure a is a plan view, Figure b is a vertical sectional view, Figures 3a and 3b show the crankshaft, Figure A is a plan view, Figure b is a partially cutaway front view, and Figure 4 shows the pin. Figure 5a,
b shows a spring, a figure is a plan view, b figure is a front view,
Figure 6 shows the pins. FIG. 7 shows an assembled diagram of the drive mechanism, and FIG. 8 is a diagram illustrating adjustment of the eccentric radius. 1... Airtight container, 2... Fixed scroll member,
3... Orbiting scroll member, 4... Compression chamber, 5...
...Electric motor, 6...Crankshaft, 6a...Main shaft, 6
b...Eccentric shaft, 6c...Disc, 6d...Circular hole,
6c... Pin hole, 7... Cylindrical member, 7a... Eccentric cylinder, 7b... Hole, 7c... Brim, 7d... Pin hole, 8... Spring, 8a, 8b... Locking part, 9, 1
0...Pin, 21...Suction pipe, 22...Discharge pipe.
Claims (1)
スクロール部材および旋回スクロール部材を備
え、両スクロール部材を互いに噛合せて圧縮室を
形成し、旋回駆動手段により固定スクロール部材
に対し旋回スクロール部材を自転することなく旋
回運動させ、圧縮室の容積を漸次減少して圧縮作
用を行なうスクロール圧縮機において、 上記旋回駆動手段は、主軸部、該主軸部に対し
偏心した円板部および該円板部と同心の偏心軸部
を含むクランク軸と、該クランク軸の偏心軸部に
遊嵌されるべき孔と同心のつば部および旋回スク
ロール部材の軸受に軸受されるべき偏心筒部を含
む円筒部材と、を備え、該円筒部材をクランク軸
の偏心軸部に遊嵌して上記円板部上に受止させ、
クランク軸の主軸部を取巻いて一端を円筒部材側
に他端をクランク軸側にそれぞれ係止するバネを
設け、円筒部材にその偏心筒部の主軸部に対する
偏心量を大きくする方向の回動力を付与するよう
にしたことを特徴とするスクロール圧縮機。[Scope of Claims] 1. A fixed scroll member and an orbiting scroll member each having a spiral wrap standing upright on an end plate, both scroll members are engaged with each other to form a compression chamber, and the fixed scroll member is driven by an orbiting drive means. In a scroll compressor that performs compression by gradually reducing the volume of a compression chamber by orbiting an orbiting scroll member without rotating, the orbit drive means includes a main shaft portion and a disk eccentric with respect to the main shaft portion. a crankshaft including a portion and an eccentric shaft portion concentric with the disc portion; a flange portion concentric with a hole to be loosely fitted into the eccentric shaft portion of the crankshaft; and an eccentric cylinder to be bearing in the bearing of the orbiting scroll member. a cylindrical member including a portion, the cylindrical member being loosely fitted onto the eccentric shaft portion of the crankshaft and received on the disk portion;
A spring is provided that surrounds the main shaft of the crankshaft and locks one end to the cylindrical member and the other end to the crankshaft, and the cylindrical member is provided with a rotational force that increases the amount of eccentricity of the eccentric cylindrical part with respect to the main shaft. A scroll compressor characterized by imparting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4273182A JPS58160579A (en) | 1982-03-19 | 1982-03-19 | Scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4273182A JPS58160579A (en) | 1982-03-19 | 1982-03-19 | Scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58160579A JPS58160579A (en) | 1983-09-24 |
| JPH0259312B2 true JPH0259312B2 (en) | 1990-12-12 |
Family
ID=12644185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4273182A Granted JPS58160579A (en) | 1982-03-19 | 1982-03-19 | Scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58160579A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60206989A (en) * | 1984-03-30 | 1985-10-18 | Mitsubishi Electric Corp | Scroll type fluid machine |
| FR2731051B1 (en) * | 1995-02-24 | 1997-04-30 | Mecanique De Normandie Soc | VACUUM PUMP WITH CIRCULAR TRANSLATION CYCLE |
-
1982
- 1982-03-19 JP JP4273182A patent/JPS58160579A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58160579A (en) | 1983-09-24 |
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| Date | Code | Title | Description |
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| EXPY | Cancellation because of completion of term |