JPH07197890A - Scroll compressor - Google Patents
Scroll compressorInfo
- Publication number
- JPH07197890A JPH07197890A JP939495A JP939495A JPH07197890A JP H07197890 A JPH07197890 A JP H07197890A JP 939495 A JP939495 A JP 939495A JP 939495 A JP939495 A JP 939495A JP H07197890 A JPH07197890 A JP H07197890A
- Authority
- JP
- Japan
- Prior art keywords
- spindle
- spindle pin
- pin portion
- slider
- center
- 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.)
- Granted
Links
Classifications
-
- 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)
- Rotary Pumps (AREA)
Abstract
(57)【要約】
【目的】 スクロール圧縮機における主軸の上部に形成
される主軸ピン部の強度を維持し、この主軸ピン部に装
着されるスライダーの姿勢維持のためスライダー着座面
をできる限り広く形成することにある。
【構成】 旋回スクロール(2)に駆動力を付与する主軸
(5)の上部に主軸ピン部(20)が形成され、この主軸ピン
部の上面で主軸(5)の回転中心位置Ｏには潤滑油孔(14)
の開口部(14a)が形成されている。主軸ピン部に形成さ
れている平坦面部(21)（スライダー摺動ガイド面）は主
軸(5)の回転中心Ｏと主軸ピン部の中心Ｏ1とを結ぶ線に
平行で且つこの線から等距離の位置に形成され、主軸ピ
ン部の基礎となる柱状部に平坦面部(21)を形成した際に
基部に残る柱状部の切削部平面をスライダー着座面とし
て構成される。
(57) [Abstract] [Purpose] Maintain the strength of the spindle pin formed on the upper part of the spindle in a scroll compressor, and make the slider seating surface as wide as possible to maintain the posture of the slider mounted on this spindle pin. To form. [Structure] Spindle that gives driving force to the orbiting scroll (2)
A spindle pin portion (20) is formed on the upper part of (5), and a lubricating oil hole (14) is formed at the rotation center position O of the spindle (5) on the upper surface of the spindle pin portion.
The opening (14a) is formed. The flat surface portion (21) (slider slide guide surface) formed on the spindle pin portion is parallel to and equidistant from the line connecting the rotation center O of the spindle (5) and the center O 1 of the spindle pin portion. The plane of the cutting portion of the columnar portion that remains at the base when the flat surface portion (21) is formed on the columnar portion that is formed at the position and serves as the basis of the spindle pin portion is formed as the slider seating surface.
Description
【０００１】[0001]
【産業上の利用分野】本発明はスクロール圧縮機に関
し、更に詳細には揺動スクロールに駆動力を付与する主
軸の上端に形成された主軸ピン部の構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scroll compressor, and more particularly, to a structure of a spindle pin portion formed at an upper end of a spindle for applying a driving force to an orbiting scroll.
【０００２】[0002]
【従来の技術】従来、空調機又は冷蔵庫などに用いられ
るスクロール圧縮機としては例えば特開昭６３−８００
８８号公報などに開示されたものが知られている。図８
はこの従来のスクロール圧縮機を示す断面図、図９は図
８に示される従来のスクロール圧縮機における主軸に形
成された主軸ピン部およびこれに嵌合装着されるスライ
ダーの分解斜視図、図１０はスライダーが装着された主
軸ピン部の上面図である。2. Description of the Related Art Conventional scroll compressors used in air conditioners, refrigerators, etc. are, for example, Japanese Patent Laid-Open No. 63-800.
The one disclosed in Japanese Patent Publication No. 88 is known. Figure 8
FIG. 9 is a cross-sectional view showing this conventional scroll compressor, FIG. 9 is an exploded perspective view of a spindle pin portion formed on a spindle in the conventional scroll compressor shown in FIG. 8 and a slider fitted and attached to the spindle pin portion, FIG. [Fig. 4] is a top view of a spindle pin portion with a slider attached.
【０００３】これらの図８ないし図１０において、(1)
は固定スクロール、(2)は旋回スクロール、(2a)は旋回
スクロール(2)の反圧縮室側スラスト面中心部に形成さ
れた軸受部、(3)は旋回スクロール(2)のスラスト面(2b)
をスラスト軸受(3a)を介して支持する主フレーム、(4)
は旋回スクロール(2)の旋回時の自転を防止するオルダ
ムリング、(5)は主フレーム(3)の主軸受(3b)により上部
が回転可能に支持され且つ旋回スクロール(2)に駆動力
を伝達する主軸、(6)はこの主軸(5)の上端に、この主軸
(5)の回転中心Ｏに対して偏心した位置に中心Ｏ1を有す
るように形成された主軸ピン部、(7)はこの主軸ピン部
(6)に装着され且つ旋回スクロール(2)の軸受部(2a)内に
回転自在に嵌入される筒状のスライダーをそれぞれ示し
ている。In these FIGS. 8 to 10, (1)
Is a fixed scroll, (2) is an orbiting scroll, (2a) is a bearing part formed in the center of the thrust surface of the orbiting scroll (2) on the side opposite to the compression chamber, and (3) is the thrust surface (2b) of the orbiting scroll (2). )
Main frame, which supports the bearings via thrust bearings (3a), (4)
Is an Oldham ring that prevents rotation of the orbiting scroll (2) during orbiting, and (5) is rotatably supported by the main bearing (3b) of the main frame (3) and the driving force is applied to the orbiting scroll (2). The spindle to be transmitted, (6) is the upper end of this spindle (5),
A spindle pin portion formed so as to have a center O 1 at an eccentric position with respect to the rotation center O of (5), and (7) shows this spindle pin portion.
Each of the cylindrical sliders is attached to (6) and is rotatably fitted in the bearing portion (2a) of the orbiting scroll (2).
【０００４】更に、(8)は電動機固定子(8a)および主軸
(5)に焼ばめ固定された電動機回転子(8b)からなるモー
タ、(9)は主軸(5)の下部を回転可能に支持する副軸受(9
a)を備えるサブフレーム、(10)はシェル、(11)は外部よ
り冷媒を圧縮室内に導く吸入管、(12)は吐出管、(13)は
シェル(10)の底部に貯留された潤滑油、(14)は潤滑油(1
3)を各摺動部に送るため主軸(5)の内部に形成された油
孔、(15)は上バランスウエイト、(16)は下バランスウエ
イトをそれぞれ示している。Further, (8) is an electric motor stator (8a) and a spindle.
A motor consisting of an electric motor rotor (8b) fixed by shrink fitting to (5), and (9) a sub-bearing (9) that rotatably supports the lower part of the main shaft (5).
Subframe with a), (10) shell, (11) suction pipe for guiding refrigerant from the outside into the compression chamber, (12) discharge pipe, (13) lubrication stored at the bottom of the shell (10) Oil, (14) is lubricating oil (1
An oil hole formed inside the main shaft (5) for feeding 3) to each sliding portion, (15) shows an upper balance weight, and (16) shows a lower balance weight.
【０００５】主軸ピン部(6)は図１０から明らかなよう
に主軸(5)の中心Ｏに対して偏心した位置Ｏ1を中心とす
る円柱形状を基礎とし、この中心点Ｏ1を通る径方向の
線に沿う方向の中心点Ｏ1を挟んだ両側の位置に平坦面
部(17)が形成されている。他方、この主軸ピン部(6)に
嵌合され且つ旋回スクロール(2)の軸受部(2a)に回転可
能に装着されるスライダー(7)は、主軸ピン部(6)に嵌合
する長孔７ａを形成したリング状を呈し、この長孔７ａ
はその長手方向の長さが主軸ピン部(6)の直径より大き
く形成されている。これにより、スライダー(7)は主軸
ピン部(6)に対してその両側若しくは片側の平坦面部(1
7)を摺動ガイド面として図１０に矢印で示す方向にスラ
イドする。このようなスライダー(7)の主軸ピン部(6)へ
の嵌合装着において、このスライダー(7)は主軸ピン部
(6)の基部に形成された着座面(18)に着座される。な
お、図１０において、Ｏ2は主軸(5)の回転時主軸ピン部
(6)によって旋回運動させられるスライダー(7)の公転中
心を示している。As is apparent from FIG. 10, the spindle pin portion (6) is based on a cylindrical shape centered on a position O 1 which is eccentric with respect to the center O of the spindle (5), and a diameter passing through this center point O 1. Flat surface portions (17) are formed at positions on both sides of the center point O 1 in the direction along the direction line. On the other hand, the slider (7) fitted to the spindle pin portion (6) and rotatably mounted on the bearing portion (2a) of the orbiting scroll (2) has a long hole fitted to the spindle pin portion (6). 7a is formed into a ring shape, and the long hole 7a
Is formed so that its length in the longitudinal direction is larger than the diameter of the spindle pin portion (6). As a result, the slider (7) has a flat surface portion (1) on both sides or one side of the spindle pin portion (6).
Using 7) as a sliding guide surface, slide in the direction shown by the arrow in FIG. When the slider (7) is fitted and mounted on the spindle pin (6), the slider (7)
It is seated on a seating surface (18) formed at the base of (6). In FIG. 10, O 2 is a spindle pin portion when the spindle (5) is rotating.
It shows the center of revolution of the slider (7) which is swung by (6).
【０００６】次に、従来のスクロール圧縮機における動
作について簡単に説明する。電動機(8)による回転力は
電動機回転子(8b)に固定された主軸(5)からスライダー
(7)を介して旋回スクロール(2)に伝達される。旋回スク
ロール(2)は自転防止機構であるオルダムリング(4)によ
り円軌道を動く旋回運動を行ない、固定スクロール(1)
との間に形成される圧縮室の容積変化に従って冷媒の圧
縮が行なわれる。Next, the operation of the conventional scroll compressor will be briefly described. The torque generated by the electric motor (8) is applied to the slider from the main shaft (5) fixed to the electric motor rotor (8b).
It is transmitted to the orbiting scroll (2) via (7). The orbiting scroll (2) performs an orbiting motion that moves in a circular orbit by the Oldham ring (4) that is a rotation prevention mechanism, and the fixed scroll (1)
The refrigerant is compressed according to the change in the volume of the compression chamber formed between and.
【０００７】冷媒は吸入管(11)より密閉容器であるシェ
ル(10)内へ流入し、圧縮室内で圧縮された後、高圧とな
り吐出管(12)より流出する。この時、シェル(10)の底部
に貯留された潤滑油は主軸(5)の回転に伴う遠心力等に
より油孔(14)を通過し、主軸ピン部(6)の上面で主軸(5)
の回転中心位置に形成された開口部(14a)から各軸受
部、および摺動部等へ導かれ潤滑作用を行なう。The refrigerant flows from the suction pipe (11) into the shell (10) which is a closed container, is compressed in the compression chamber, becomes a high pressure, and then flows out from the discharge pipe (12). At this time, the lubricating oil stored at the bottom of the shell (10) passes through the oil hole (14) due to the centrifugal force caused by the rotation of the spindle (5), etc., and the spindle (5) is placed on the upper surface of the spindle pin (6).
From the opening (14a) formed at the center of rotation of the bearing, it is guided to the bearings, the sliding portions, etc., and performs a lubricating action.
【０００８】また、主軸ピン部(6)の加工方法について
は、通常、主軸(5)と主軸中心に対して偏心した円柱形
状の主軸ピン部(6)を最初に加工形成し、その後に主軸
ピン部(6)の平坦面部(17)を加工する。この時、平坦面
部(17)の下縁部を主軸(5)の上面５ａと同一平面内に形
成するように平坦面部(17)を切り下げることは非常にむ
ずかしく、従ってどうしても主軸ピン部(6)の基礎円柱
形状から平坦面部(17)を加工した時、主軸(5)の上面(5
a)より若干高い位置で主軸ピン部(6)の基礎に半月状の
平面部が残る。そのため、この平面部をスライダー着座
面(18)として、この上にスライダー(7)を乗せてスライ
ダー(7)の姿勢維持を行なっていた。Regarding the method of machining the spindle pin portion (6), usually, the spindle (5) and the cylindrical spindle pin portion (6) eccentric with respect to the spindle center are first worked and formed, and then the spindle. The flat surface portion (17) of the pin portion (6) is processed. At this time, it is very difficult to cut down the flat surface portion (17) so that the lower edge portion of the flat surface portion (17) is formed in the same plane as the upper surface 5a of the spindle (5). When the flat surface part (17) is machined from the basic cylindrical shape of, the upper surface (5
A half-moon shaped flat surface remains on the foundation of the spindle pin (6) at a position slightly higher than a). Therefore, this flat surface is used as the slider seating surface (18), and the slider (7) is placed on the slider seating surface (18) to maintain the posture of the slider (7).
【０００９】[0009]
【発明が解決しようとする課題】従来のスクロール圧縮
機は前述したように構成されていたことより、主軸(5)
の径が小さい場合主軸ピン部(6)も小さくなり、そし
て、スライダー(7)の姿勢安定化のためにスライダー着
座面(18)を広くとろうとして平坦面部(17)を主軸ピン部
(6)の中心点Ｏ1寄りに形成しようとすると、この一方の
平坦面部(17)が油孔(14)に接近し、油孔(14)と平坦面部
(17)との間の肉厚が薄くなって強度上の問題を生ずる。
そのため、油孔(14)側の平坦面部(17)を中心点Ｏ1から
離し且つ他方の平坦面部(17)を更に一層中心点Ｏ1寄り
に形成してスライダー着座面(18)の全体面積を確保する
ことも検討されたが、この場合には一方のスライダー着
座面(18)の面積が極端に小さくなり、スライダー(7)の
姿勢安定化は困難であるという問題があった。Since the conventional scroll compressor is constructed as described above, the main shaft (5)
If the diameter of the spindle is small, the spindle pin part (6) will also be small, and the flat surface part (17) will be used to widen the slider seating surface (18) in order to stabilize the posture of the slider (7).
When it is attempted to form it near the center point O 1 of (6), this one flat surface portion (17) approaches the oil hole (14), and the oil hole (14) and the flat surface portion
The wall thickness between (17) and (17) becomes thin, which causes a problem in strength.
Therefore, the flat surface portion (17) on the oil hole (14) side is separated from the center point O 1 and the other flat surface portion (17) is further formed closer to the center point O 1 to form the entire area of the slider seating surface (18). However, in this case, the area of one slider seating surface (18) becomes extremely small, and it is difficult to stabilize the posture of the slider (7).
【００１０】本発明の目的は、かかる従来の問題点を解
決するためになされたもので、主軸の上部に形成される
主軸ピン部の強度を維持し、且つこの主軸ピン部に装着
されるスライダーの姿勢維持のためスライダー着座面を
できる限り広く形成するようにしたスクロール圧縮機を
提供することにある。The object of the present invention is to solve the above-mentioned conventional problems, and to maintain the strength of the spindle pin portion formed on the upper portion of the spindle and to attach the slider to the spindle pin portion. To provide a scroll compressor in which the slider seating surface is formed as wide as possible in order to maintain the posture.
【００１１】[0011]
【課題を解決するための手段】本発明のスクロール圧縮
機は、潤滑油孔の開口部を主軸ピン部の上面で主軸の回
転中心位置に形成し、主軸ピン部の平坦面部を主軸の中
心と主軸ピン部の中心とを結ぶ線に平行で且つこの線か
ら等距離の位置に形成し、主軸ピン部の基礎となる柱状
部に平坦面部を形成した際に基部に残る柱状部の切削部
平面をスライダー着座面としたことを特徴とする。In the scroll compressor of the present invention, the opening of the lubricating oil hole is formed on the upper surface of the spindle pin at the center of rotation of the spindle, and the flat surface of the spindle pin serves as the center of the spindle. The cut surface of the columnar part that remains at the base when the flat surface is formed on the columnar part that forms the basis of the spindle pin part, and is formed at a position parallel to the line connecting the center of the spindle pin part and at an equal distance from this line. Is a slider seating surface.
【００１２】また、上記主軸ピン部が、中心の異なる少
なくとも２つの円弧にて区画される基礎平面形状のこれ
ら２つの円弧の交差する各側を切り落して上記平坦面部
を形成して構成され、上記主軸ピン部の基部に上記基礎
平面形の柱状部から当該主軸ピン部を除いた残りの平面
部を形成し、この平面部をスライダーの着座面としたこ
とを特徴とする。The spindle pin portion is formed by cutting off each side of the basic plane shape defined by at least two arcs having different centers so that these two arcs intersect to form the flat surface portion. It is characterized in that a remaining flat surface portion except the main shaft pin portion is formed on the base portion of the main spindle pin portion from the basic flat columnar portion, and the flat surface portion is used as a seating surface of the slider.
【００１３】[0013]
【作用】本発明のスクロール圧縮機によると、主軸ピン
部の平坦面部を、主軸ピン部の基礎となる柱状部におい
て主軸の中心と主軸ピン部の中心とを結ぶ線に平行で且
つこの線から等距離の位置に形成したことから、主軸の
中心位置で主軸ピン部上面に形成された油孔の開口部は
両平坦面部間の２等分線上に位置することとなる。その
ため、スライダー着座面を広くとるように平坦面部の形
成位置を主軸ピン部の中心寄りにしても油孔の開口部と
の距離を十分にとることができる。According to the scroll compressor of the present invention, the flat surface portion of the spindle pin portion is parallel to and from the line connecting the center of the spindle and the center of the spindle pin portion in the columnar portion which is the basis of the spindle pin portion. Since they are formed at equal distances, the opening of the oil hole formed on the upper surface of the spindle pin portion at the center position of the spindle is located on the bisector between both flat surface portions. Therefore, even if the position where the flat surface portion is formed is closer to the center of the spindle pin portion so that the slider seating surface is wide, a sufficient distance can be secured with the opening portion of the oil hole.
【００１４】また、主軸ピン部の平坦面部を、基礎平面
形状が異なる中心位置の２つの円弧で区画されるラグビ
ーボール状の柱状部から主軸ピン部を形成することによ
り、スライダー着座面を更に広く確保することができ
る。Further, by forming the flat surface portion of the spindle pin portion from a rugby ball-shaped columnar portion which is divided by two circular arcs of different center positions having different basic plane shapes, the slider seating surface is further widened. Can be secured.
【００１５】[0015]
実施例１．以下、本発明のスクロール圧縮機を図に示さ
れた実施例について更に詳細に説明する。図１には本発
明の一実施例に係るスクロール圧縮機の主要部即ち主軸
(5)の上部に形成された主軸ピン部(20)とこれに嵌合装
着されたスライダー(7)とが示されている。この主軸ピ
ン部(20)は、図３に示されるように油孔(14)の開口部(1
4a)が形成されている主軸(5)の回転中心Ｏに対して偏心
した位置Ｏ1を中心とする円柱部(21)を基礎とし、この
円柱部(21)からこの２つの中心Ｏ，Ｏ1を結ぶ線に平行
で且つ中心点Ｏ1を挟んでこの線から等距離の位置にス
ライダー(7)の摺動ガイド面となる平坦面部(22)を形成
して構成されている。Example 1. Hereinafter, the scroll compressor of the present invention will be described in more detail with reference to the embodiments shown in the drawings. FIG. 1 shows a main part of a scroll compressor according to an embodiment of the present invention, that is, a main shaft.
The spindle pin portion (20) formed on the upper part of (5) and the slider (7) fitted and attached to this are shown. As shown in FIG. 3, the spindle pin portion (20) has an opening (1) for the oil hole (14).
4a) is formed on the basis of a cylindrical portion (21) centered on a position O 1 which is eccentric with respect to the rotation center O of the main shaft (5), and from this cylindrical portion (21) the two centers O, O A flat surface portion (22) serving as a sliding guide surface of the slider (7) is formed at a position that is parallel to the line connecting 1 and sandwiches the center point O 1 and is equidistant from this line.
【００１６】他方、主軸ピン部(20)の基部であって主軸
(5)の上面(5a)より若干高い位置には図２に示されるよ
うにスライダー(7)を着座させる着座面(23)が形成され
ている。この着座面(23)は従来と同様に主軸ピン部(6)
の基礎となる円柱部(21)（図３）に平坦面部(22)を形成
した際に基部に残る円柱部(21)の切削部平面であって半
月状を呈している。スライダー(7)は従来のものと同じ
であり、主軸ピン部(20)に嵌合され且つ着座面(23)に着
座させられて径方向にスライド可能に装着される。On the other hand, the base of the spindle pin portion (20)
A seating surface (23) for seating the slider (7) is formed at a position slightly higher than the upper surface (5a) of (5), as shown in FIG. This seating surface (23) is the same as the conventional shaft pin (6)
When the flat surface portion (22) is formed on the columnar portion (21) (FIG. 3) which is the basis of the above, it is the plane of the cut portion of the columnar portion (21) that remains at the base and has a half-moon shape. The slider (7) is the same as the conventional one, and is fitted to the spindle pin portion (20), seated on the seating surface (23), and mounted so as to be slidable in the radial direction.
【００１７】次に、このような主軸ピン部(20)を備える
本実施例のスクロール圧縮機における動作について説明
する。但し、このスクロール圧縮機における圧縮作用お
よび潤滑油の流れ方等については従来のものと同じであ
るのでその説明を省略する。Next, the operation of the scroll compressor of this embodiment provided with such a spindle pin portion (20) will be described. However, since the compression action and the flow of lubricating oil in this scroll compressor are the same as those of the conventional one, the description thereof will be omitted.
【００１８】この実施例のスクロール圧縮機によると、
主軸ピン部(20)の平坦面部(22)を、主軸(5)の中心Ｏと
主軸ピン部(20)の中心Ｏ1とを結ぶ線に平行で且つこの
線から等距離Ａ／２の位置に形成したので、主軸(5)の
中心Ｏの位置で主軸ピン部(20)の上面に形成された油孔
(14)の開口部(14a)は両平坦面部(21)間の２等分線上に
位置することとなる。そのため、スライダー着座面(23)
を広くとるように平坦面部(22)の形成位置を主軸ピン部
(20)の中心寄りにしても油孔(14)の開口部(14a)との距
離を十分にとることができ、スライダー(7)は広い着座
面(23)によって安定した姿勢でスライドする。According to the scroll compressor of this embodiment,
Spindle pin flat surface portion (22) of (20), the main shaft (5) located equidistant A / 2 and from the line parallel to the line connecting the center O 1 of the center O and the main shaft pin (20) of Oil hole formed on the upper surface of the spindle pin portion (20) at the position of the center O of the spindle (5).
The opening portion (14a) of (14) is located on the bisector between both flat surface portions (21). Therefore, the slider seating surface (23)
The flat surface part (22) so that the
Even if it is closer to the center of (20), a sufficient distance can be secured to the opening (14a) of the oil hole (14), and the slider (7) slides in a stable posture due to the wide seating surface (23).
【００１９】この結果、本実施例のスクロール圧縮機に
よれば、主軸ピン部(20)の剛性を低下させることなく、
しかもスライダー着座面(23)を比較的に広くとることが
できることからスライダーの姿勢維持不良によるスライ
ダー軸受の焼付等の不具合を避けることができる。ま
た、これに伴いスライダーがスライド方向に動く場合に
も着座面が対称であれば、摩擦力も等しく回転方向への
力が働くこともない。As a result, according to the scroll compressor of the present embodiment, the rigidity of the spindle pin portion (20) is not reduced,
Moreover, since the slider seating surface (23) can be made relatively wide, problems such as seizure of the slider bearing due to poor attitude maintenance of the slider can be avoided. Even if the slider moves in the sliding direction, the frictional force is equal and the force in the rotating direction does not act even if the seating surface is symmetrical.
【００２０】実施例２．図４には本発明の他の実施例に
係るスクロール圧縮機の主要部即ち主軸(5)の上部に形
成された主軸ピン部(30)とこれに嵌合装着されたスライ
ダー(7)とが示されている。この実施例におけるスクロ
ール圧縮機の主軸ピン部(30)は、図５に示されるように
主軸(5)の回転中心Ｏを通る径方向の一線上に中心を位
置しながらその位置をそれぞれ異にする２つの円弧(31
a)、(31b)にて区画されるラグビーボール状の基礎平面
形状を有する柱状部(31)の、これら２つの円弧の交差す
る各側を前述した各中心が位置する一線に平行に切り落
して平坦面部(32)を形成して構成されている（図６、図
７）。Example 2. FIG. 4 shows a main part of a scroll compressor according to another embodiment of the present invention, that is, a main shaft pin part (30) formed on an upper part of a main shaft (5) and a slider (7) fitted and attached thereto. It is shown. As shown in FIG. 5, the main shaft pin portion (30) of the scroll compressor in this embodiment is located at different positions while being centered on a radial line passing through the rotation center O of the main shaft (5). Two arcs (31
a), a columnar part (31) having a rugby ball-shaped basic plane shape partitioned by (31b) is cut off in parallel with the line where the above-mentioned respective centers are located. It is configured by forming a flat surface portion (32) (FIGS. 6 and 7).
【００２１】他方、スライダー(7)が着座する着座面(3
3)は、主軸ピン部(30)の基部に、この主軸ピン部(30)の
基礎となる柱状部(31)に平坦面部(32)を形成した際に基
部に残るこの柱状部の切削部平面となる。このように、
基礎平面形状が異なる中心位置の２つの円弧(31a)、(31
b)で区画されるラグビーボール状の柱状部(31)から主軸
ピン部(30)を形成するようにすると、スライダー着座面
(33)は図１に示される実施例のものより更に広く確保す
ることができ、スライダー(7)の安定した姿勢維持と主
軸ピン部(30)の剛性確保が両立し、スクロール圧縮機の
信頼性を向上させることができる。On the other hand, the seating surface (3
3) is the cutting portion of the columnar portion that remains in the base when the flat surface portion (32) is formed on the columnar portion (31) that is the basis of the spindle pin portion (30) at the base of the spindle pin portion (30). It becomes a plane. in this way,
Two circular arcs (31a) and (31
When the spindle pin section (30) is formed from the rugby ball-shaped columnar section (31) defined by b), the slider seating surface
(33) can be assured wider than that of the embodiment shown in FIG. 1, and the stable posture of the slider (7) and the rigidity of the spindle pin (30) can be ensured at the same time, and the reliability of the scroll compressor is improved. It is possible to improve the sex.
【００２２】[0022]
【発明の効果】前述したように、本発明のスクロール圧
縮機によれば、主軸の上部に形成される主軸ピン部にお
けるスライダー摺動ガイド面として作用する平坦面部を
主軸の回転中心と主軸ピン部の基礎となる柱状部の上面
部中心とを結ぶ線に平行で且つこの線から等距離の位置
でその柱状部に形成することによって主軸ピン部の剛性
を低下させることなく、且つ十分に広いスライダー着座
面を確保することができ、これによりスライダーの安定
した姿勢維持を図れ、スライダー軸受部の焼付きを避け
ることができる。As described above, according to the scroll compressor of the present invention, the flat surface portion acting as the slider sliding guide surface in the spindle pin portion formed on the upper portion of the spindle is provided with the rotation center of the spindle and the spindle pin portion. By forming the columnar portion at a position parallel to the line connecting the center of the upper surface of the columnar portion which is the base of the column and at an equidistant position from this line, the slider of the spindle pin portion is sufficiently wide without lowering its rigidity. It is possible to secure a seating surface, so that a stable posture of the slider can be maintained and seizure of the slider bearing portion can be avoided.
【００２３】また、主軸ピン部の平坦面部を、基礎平面
形状が異なる中心位置の２つの円弧で区画される柱状部
から主軸ピン部を形成することにより、スライダー着座
面を更に広く確保することができ、これによりスライダ
ーを更に安定した姿勢に維持できる。Further, by forming the spindle pin portion from the flat surface portion of the spindle pin portion from the columnar portion divided by the two arcs of the central positions having different basic plane shapes, the slider seating surface can be secured more widely. This makes it possible to maintain the slider in a more stable posture.
【図１】 本発明の実施例１の主要部を示す平面図。FIG. 1 is a plan view showing a main part of a first embodiment of the present invention.
【図２】 本発明の実施例１の主軸ピン部を示す斜視
図。FIG. 2 is a perspective view showing a spindle pin portion according to the first embodiment of the present invention.
【図３】 図２に図示の主軸ピン部を形成する前の主軸
上部を示す斜視図。3 is a perspective view showing an upper portion of the spindle before forming the spindle pin portion shown in FIG. 2. FIG.
【図４】 本発明の実施例２の主要部主軸ピン部とこれ
に装着されたスライダーとを示す平面図。FIG. 4 is a plan view showing a main spindle pin portion and a slider mounted on the main spindle pin portion according to a second embodiment of the present invention.
【図５】 図４に図示の主軸ピン部を形成する前の主軸
上部を示す斜視図。5 is a perspective view showing the upper portion of the spindle before forming the spindle pin portion shown in FIG. 4. FIG.
【図６】 図４に図示の主軸ピン部の斜視図。6 is a perspective view of the spindle pin portion shown in FIG. 4. FIG.
【図７】 図６に図示の主軸ピン部の平面図。7 is a plan view of the spindle pin portion shown in FIG.
【図８】 従来のスクロール圧縮機を示す縦断面図。FIG. 8 is a vertical cross-sectional view showing a conventional scroll compressor.
【図９】 図８に図示の従来のスクロール圧縮機におけ
る主軸ピン部とこれに装着されるスライダーとを示す分
解斜視図。9 is an exploded perspective view showing a spindle pin portion and a slider attached to the spindle pin portion in the conventional scroll compressor shown in FIG.
【図１０】 図９図示の従来の主軸ピン部とスライダー
とを示す平面図。FIG. 10 is a plan view showing a conventional spindle pin portion and slider shown in FIG.
１ 固定スクロール、２ 旋回スクロール、３ｂ 軸
受、４ オルダムリング、５ 主軸、５ａ 上面、７
スライダー、７ａ 長孔、８ 電動機、１４ 油孔、１
４ａ 開口部、２０ 主軸ピン部、２１ 円柱部、２２
平坦面部、２３スライダー着座面。1 fixed scroll, 2 orbiting scroll, 3b bearing, 4 Oldham ring, 5 main shaft, 5a upper surface, 7
Slider, 7a long hole, 8 electric motor, 14 oil hole, 1
4a Opening, 20 Spindle Pin, 21 Column, 22
Flat surface, 23 slider seating surface.
Claims (2)
室を形成する旋回スクロールと、この旋回スクロールの
反圧縮室側スラスト面中心部に形成された軸受と、上記
旋回スクロールに駆動力を伝達する主軸と、この主軸の
上部に形成され且つ上記主軸の回転中心に対して偏心し
た位置に中心を有し、上記旋回スクロールの上記軸受内
に嵌合される主軸ピン部と、この主軸ピン部の上面で上
記主軸の回転中心位置に形成された潤滑油孔の開口部
と、上記主軸ピン部の中心を挟んで両側に形成された平
坦面部と、この主軸ピン部に装着され且つ上記旋回スク
ロールの上記軸受内に回転自在に配置される筒状のスラ
イダーと、上記主軸ピン部の基部でこの主軸ピン部に形
成され、上記スライダーを着座させる着座面とを備え、
上記主軸ピン部の上記平坦面部が上記主軸の中心と上記
主軸ピン部の中心とを結ぶ線に平行で且つこの線から等
距離の位置に形成され、上記スライダー着座面が上記主
軸ピン部の基礎となる柱状部に上記平坦面部を形成した
際に基部に残る柱状部の切削部平面で形成されているこ
とを特徴とするスクロール圧縮機。1. A fixed scroll and an orbiting scroll that forms a compression chamber in cooperation with the fixed scroll, a bearing formed at the center of the thrust surface of the orbiting scroll on the side opposite to the compression chamber, and a driving force transmitted to the orbiting scroll. A main shaft, a main shaft pin formed in an upper portion of the main shaft and having a center at a position eccentric with respect to the rotation center of the main shaft, and fitted in the bearing of the orbiting scroll; An opening of a lubricating oil hole formed on the upper surface of the spindle at the center of rotation of the spindle, flat surface portions formed on both sides of the center of the spindle pin portion, and the orbiting scroll mounted on the spindle pin portion. A cylindrical slider rotatably arranged in the bearing, and a seating surface formed on the main spindle pin portion at the base of the main spindle pin portion for seating the slider,
The flat surface portion of the spindle pin portion is formed parallel to a line connecting the center of the spindle and the center of the spindle pin portion and at a position equidistant from this line, and the slider seating surface is the foundation of the spindle pin portion. A scroll compressor characterized by being formed by a plane of a cutting portion of a columnar portion remaining in a base when the flat surface portion is formed on the columnar portion.
とも２つの円弧にて区画される基礎平面形状のこれら２
つの円弧の交差する各側を切り落して上記平坦面部を形
成して構成され、上記主軸ピン部の基部に上記基礎平面
形の柱状部から当該主軸ピン部を除いた残りの平面部を
形成し、この平面部をスライダーの着座面としたことを
特徴とする請求項１に記載のスクロール圧縮機。2. The two of the basic plane shapes in which the spindle pin portion is divided into at least two arcs having different centers.
It is configured by cutting off each side where the two arcs intersect to form the flat surface portion, and forming the remaining flat surface portion excluding the spindle pin portion from the basic flat columnar portion on the base portion of the spindle pin portion, The scroll compressor according to claim 1, wherein the flat portion is a seating surface of the slider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7009394A JP2770761B2 (en) | 1995-01-25 | 1995-01-25 | Scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7009394A JP2770761B2 (en) | 1995-01-25 | 1995-01-25 | Scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07197890A true JPH07197890A (en) | 1995-08-01 |
| JP2770761B2 JP2770761B2 (en) | 1998-07-02 |
Family
ID=11719220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7009394A Expired - Lifetime JP2770761B2 (en) | 1995-01-25 | 1995-01-25 | Scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2770761B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006068044A1 (en) * | 2004-12-21 | 2006-06-29 | Daikin Industries, Ltd. | Scroll fluid machine |
| WO2006067844A1 (en) | 2004-12-22 | 2006-06-29 | Mitsubishi Denki Kabushiki Kaisha | Scroll compressor |
| JP2007071214A (en) * | 2004-12-21 | 2007-03-22 | Daikin Ind Ltd | Scroll type fluid machinery |
| US20150037185A1 (en) * | 2013-07-31 | 2015-02-05 | Trane International Inc. | Orbiting crankshaft drive pin and associated drive pin sleeve geometry |
| EP3159545A1 (en) * | 2015-10-20 | 2017-04-26 | Mitsubishi Heavy Industries, Ltd. | Scroll fluid machine |
-
1995
- 1995-01-25 JP JP7009394A patent/JP2770761B2/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006068044A1 (en) * | 2004-12-21 | 2006-06-29 | Daikin Industries, Ltd. | Scroll fluid machine |
| JP2007071214A (en) * | 2004-12-21 | 2007-03-22 | Daikin Ind Ltd | Scroll type fluid machinery |
| US7789640B2 (en) | 2004-12-21 | 2010-09-07 | Daikin Industries, Ltd. | Scroll fluid machine with a pin shaft and groove for restricting rotation |
| US8246331B2 (en) | 2004-12-21 | 2012-08-21 | Daikin Industries, Ltd. | Scroll fluid machine with a pin shaft and groove for restricting rotation |
| WO2006067844A1 (en) | 2004-12-22 | 2006-06-29 | Mitsubishi Denki Kabushiki Kaisha | Scroll compressor |
| EP1818540A4 (en) * | 2004-12-22 | 2009-03-11 | Mitsubishi Electric Corp | SPIRAL COMPRESSOR |
| US7766633B2 (en) | 2004-12-22 | 2010-08-03 | Mitsubishi Electric Corporation | Scroll compressor having a slider with a flat surface slidable and fitted in a notch part of a main shaft |
| US20150037185A1 (en) * | 2013-07-31 | 2015-02-05 | Trane International Inc. | Orbiting crankshaft drive pin and associated drive pin sleeve geometry |
| US9732755B2 (en) * | 2013-07-31 | 2017-08-15 | Trane International Inc. | Orbiting crankshaft drive pin and associated drive pin sleeve geometry |
| EP3159545A1 (en) * | 2015-10-20 | 2017-04-26 | Mitsubishi Heavy Industries, Ltd. | Scroll fluid machine |
| JP2017078360A (en) * | 2015-10-20 | 2017-04-27 | 三菱重工業株式会社 | Scroll fluid machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2770761B2 (en) | 1998-07-02 |
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