JPH0367080A - Scroll compressor - Google Patents

Scroll compressor

Info

Publication number
JPH0367080A
JPH0367080A JP20436989A JP20436989A JPH0367080A JP H0367080 A JPH0367080 A JP H0367080A JP 20436989 A JP20436989 A JP 20436989A JP 20436989 A JP20436989 A JP 20436989A JP H0367080 A JPH0367080 A JP H0367080A
Authority
JP
Japan
Prior art keywords
oil
movable scroll
scroll
key seat
key
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
Application number
JP20436989A
Other languages
Japanese (ja)
Other versions
JPH0726619B2 (en
Inventor
Satoshi Okada
聡 岡田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daikin Industries Ltd filed Critical Daikin Industries Ltd
Priority to JP1204369A priority Critical patent/JPH0726619B2/en
Publication of JPH0367080A publication Critical patent/JPH0367080A/en
Publication of JPH0726619B2 publication Critical patent/JPH0726619B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • F01C17/00—Arrangements for drive of co-operating members, e.g. for rotary piston and casing
    • F01C17/06—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements
    • F01C17/066—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements with an intermediate piece sliding along perpendicular axes, e.g. Oldham coupling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

PURPOSE:To secure the oil supply amount to each key slide part and make lubrication in satisfactory performance by setting the length of No. 1 key seat on the inner side in radial direction to such a size that an oil groove which No. 1 key seat forms at the thrust receiving surface in the circumferential direction, is reached when a movable scroll is orbiting. CONSTITUTION:The length of each No. 1 key seat 7 is set to such a size that the inside edge end of the No. 1 key seat 7 gets over an oil groove 42 when a movable scroll 3 makes an orbit relative to a stationary scroll 2. With this orbiting, the inside edge end of the No. 1 key seat 7 getting over the oil groove 42 splashes the oil therein outward to perform active oil supply to keys 91, 92 of an Oldham ring 9. The splashed oil runs against the keys 91, 92 to become mist, and this oil in mist form is lifted from the No. 1 key seat 7 to a suction port 10 with the suction refrigerant and supplied to compression chambers 11 of the scrolls 2, 3. Thus the compression chambers 11 are sealed certainly.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、スクロール形圧縮機に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a scroll compressor.

（従来の技術） 従来、スクロール形圧縮機として、特願昭６３−２４３
２１９号（昭和６３年９月２７日出願）を提案し、この
提案内容は、第４図に示したごとく、ハウジング（）Ｉ
）の上部に設けたスラスト受面（Ａ）に、固定スクロー
ル（Ｘ）に噛合う可動スクロール（Ｙ）の裏面を回動自
由に支持すると共に、この可動スクロール（Ｙ）の外周
部に第１キー溝（ａ）を、また、静止部材例えば固定ス
クロール（Ｘ）の外周部に、前記第１キー溝（ａ）と直
交状に延びる第２キー溝（ｂ）をそれぞれ形成する一方
、これら各キー溝（ａ）（ｂ）に係合する第１及び第２
キー（Ｋｌ）（Ｋ２）をもつオルダムリング（０）を前
記可動スクロール（Ｙ）の外周部位に配設したものであ
る。(Prior art) Conventionally, as a scroll compressor, patent application No. 63-243
No. 219 (filed on September 27, 1986), the content of this proposal is as shown in Figure 4, Housing () I
) The back surface of the movable scroll (Y) that engages with the fixed scroll (X) is rotatably supported on the thrust receiving surface (A) provided on the upper part of the movable scroll (Y). A key groove (a) and a second key groove (b) extending perpendicularly to the first key groove (a) are formed on the outer circumference of a stationary member such as a fixed scroll (X). First and second engaging keyways (a) and (b)
An Oldham ring (0) having keys (Kl) (K2) is arranged on the outer periphery of the movable scroll (Y).

また、前記スラスト受面（Ａ）には、クランク軸（Ｋ）
内に設けた給油通路に連通される周方向の油溝（Ｂ）を
設けて、該油溝（Ｂ）を介して前記スラスト受面（Ａ）
に給油し、この給油後の油を前記各キー（Ｋｌ）（Ｋ２
）の摺動部位に給油し、更に、該摺動部位などに給油し
た後の油一部を吸入冷媒で持上げて、前記各スクロール
（Ｘ）（Ｙ）間に形成される圧縮室（Ｃ）に供給し、該
圧縮室（Ｃ）のシールを行うようにしている。In addition, the thrust receiving surface (A) is provided with a crankshaft (K).
A circumferential oil groove (B) is provided that communicates with an oil supply passage provided in the thrust receiving surface (A) through the oil groove (B).
, and apply this oil to each key (Kl) (K2).
), and a part of the oil after being lubricated to the sliding parts etc. is lifted by suction refrigerant to create a compression chamber (C) formed between each of the scrolls (X) and (Y). is supplied to seal the compression chamber (C).

（発明が解決しようとする課題） 所で、以上の構成では、前記第１及び第２キー（Ｋｌ）
（Ｋ２）の摺動部位への給油量が不足気味となって、良
好な潤滑が行えないのであり、また、特に低容量運転を
行うようなとき、吸入冷媒による油の持上げ量が少なく
なって、前記圧ｗＩ室（Ｃ）のソール性が悪くなる問題
があった。(Problem to be Solved by the Invention) However, in the above configuration, the first and second keys (Kl)
The amount of oil supplied to the sliding parts of (K2) tends to be insufficient, and good lubrication cannot be achieved. Also, especially when operating at low capacity, the amount of oil lifted by the suction refrigerant is reduced. , there was a problem that the sole properties of the pressure wI chamber (C) deteriorated.

本発明は以上のような問題に鑑みてなしたもので、その
目的は、前記各キーの摺動部位への給油量を充分に確保
して良好な潤滑を行うことができながら、例え低容量運
転を行う場合にあっても、吸入冷媒による油の持上げ量
を大として、前記各スクロール間の圧縮室を確実にシー
ルできるスクロール形圧縮機を提供することにある。The present invention was made in view of the above-mentioned problems, and its purpose is to ensure a sufficient amount of oil supply to the sliding parts of each key and provide good lubrication, even if the capacity is low. It is an object of the present invention to provide a scroll type compressor that can securely seal the compression chambers between the scrolls by increasing the amount of oil lifted by suction refrigerant even when in operation.

（課題を解決するための手段） 上記目的を達成するために、本発明では、ハウジング（
４）の上部に形成するスラスト受面（４１）に、固定ス
クロール（２）に噛合う可動スクロール（３）の裏面を
回動自由に支持すると共に、該可動スクロール（３）に
設ける第１キー溝（７）に係合する第１キー（９１）と
、静止部材側に設ける第２キー溝（８）に係合する第２
キー（９２）とを直交状に備えるオルダムリング（９）
を介装したスクロール形圧縮機において、前記第１キー
溝（７）を、前記可動スクロール（３）の裏面から吸入
ボー）（１０）に臨む表面にかけて上下を連通させて形
成すると共に、この第１キー溝（７）の径方向内方側の
長さを、前記可動スクロール（３）の公転時、前記第１
キー溝（７）が前記スラスト受面（４１）の周方向に形
成する油溝（４２）に達する長さに設定したことを特徴
とするものである。(Means for Solving the Problem) In order to achieve the above object, the present invention provides a housing (
The back surface of the movable scroll (3) that engages with the fixed scroll (2) is rotatably supported on the thrust receiving surface (41) formed on the upper part of the movable scroll (3), and a first key provided on the movable scroll (3). A first key (91) that engages with the groove (7) and a second key that engages with a second key groove (8) provided on the stationary member side.
Oldham ring (9) with a key (92) orthogonally arranged
In the scroll type compressor equipped with The length of the radially inward side of the first key groove (7) is set to the length of the first key groove (7) when the movable scroll (3) revolves.
The keyway (7) is characterized in that the length is set to reach the oil groove (42) formed in the circumferential direction of the thrust receiving surface (41).

（作用） 前記可動スクロール（３）が−公転するとき、１ｎ記第
１キー溝（７）の内周端縁が前記スラスト受面（４１）
の油溝（４２）を乗り越え、この複鎖油溝（４２）の油
が前記内周端縁で外方に飛散されて、前記オルダムリン
グ（９）の各キー（９１）（９２）へと積極的に給油さ
れるのであり、また、前記飛散油が各キー（９１）（９
２）に衝突してミスト状となり、このミスト状の油が吸
入冷媒で吸入ボー）（１０）へと持上げられて、各スク
ロール（２）（３）の圧縮室へと供給され、該圧縮室の
確実なシールが行われる。(Function) When the movable scroll (3) revolves -, the inner circumferential edge of the first keyway (7) of 1n is aligned with the thrust receiving surface (41).
The oil in the double-chain oil groove (42) is splashed outward at the inner peripheral edge to each key (91) (92) of the Oldham ring (9). The oil is actively refilled, and the splashed oil hits each key (91) (9).
2), this mist-like oil is lifted by the suction refrigerant to the suction bow (10), and is supplied to the compression chambers of each scroll (2) and (3). A reliable seal is performed.

（実施例） 第３図に示したスクロール形圧縮機は、密閉ケーシング
（１）の内方上部に、互いに噛み合う固定及び可動スク
ロール（２）（３）をハウジング（４）を介して上下対
向状に支持し、該ハウジング（４）の上面側に設けたス
ラスト受面（４１）に、前記可動スクロール（３）の裏
面側を回動自由に摺接支持すると共に、前記ケーシング
（１）の下部側にモータ（５）を配設して、とのモータ
（５）から延びるクランク軸（６）の上部側を前記可動
スクロール（３）に連結する一方、該可動スクロール（
３）の外周対向部位に一対の第１キー溝（７）を、また
、静止部材例えば前記ハウジング（４）の外周対向部位
に、前記各第１キー溝（７）と直交状に延びる一対の第
２キー溝（８）をそれぞれ設けて、これら各キーｙｌ　
（７）　　（８）に係合する第１及び第２キー（９１）
（９２）をもつオルダムリング（９）を、前記可動スク
ロール（３）の外周部位に配設して、前記オルダムリン
グ（９）で前記可動スクロール（３）の自転を阻止し、
該可動スクロール（３）を固定スクロール（２）に対し
公転駆動させるようにしている。(Example) The scroll compressor shown in Fig. 3 has fixed and movable scrolls (2) and (3) that engage with each other arranged in a vertically opposed manner at the inner upper part of a hermetic casing (1) via a housing (4). The back side of the movable scroll (3) is rotatably and slidably supported on the thrust receiving surface (41) provided on the upper side of the housing (4), and the lower part of the casing (1) A motor (5) is disposed on the side, and the upper side of a crankshaft (6) extending from the motor (5) is connected to the movable scroll (3).
3), and a pair of first keyways (7) extending perpendicularly to each of the first keyways (7) in a stationary member, for example, a portion facing the outer periphery of the housing (4). A second key groove (8) is provided, and each of these keys
(7) First and second keys (91) that engage with (8)
(92) is disposed on the outer circumference of the movable scroll (3), and the Oldham ring (9) prevents rotation of the movable scroll (3);
The movable scroll (3) is driven to revolve around the fixed scroll (2).

また、前記スラスト受面（４１）には、周方向に延びる
油溝（４２）を設けて、該油溝（４２）を前記ハウジン
グ（４）内の連通路（４３）を介して、前記クランク軸
（６）内に形成した給油通路（６１）に連通させ、この
給油通路（６１）に吸上げられた油を、前記連通路（４
３）から油溝（４２）を経て前記スラスト受面（４１）
へと給油するようにしている。Further, the thrust receiving surface (41) is provided with an oil groove (42) extending in the circumferential direction, and the oil groove (42) is connected to the crankshaft through a communication path (43) in the housing (4). It communicates with an oil supply passage (61) formed in the shaft (6), and the oil sucked up into this oil supply passage (61) is transferred to the communication passage (4).
3) through the oil groove (42) to the thrust receiving surface (41).
I am trying to refuel it.

しかして以上のスクロール形圧縮機において、第１図及
び第２図で詳しく示したごとく、前記各第１キー溝（７
）を、前記可動スクロール（３）の裏面側から各スクロ
ール（２）（３）間の吸入ボー）（１０）に臨む上面に
かけて上下連通状に形成すると共に、前記各第１キー溝
（７）の径方向内方側の長さを、可動スクロール（３）
の公転時に、前記各第１キー溝（７）が前記スラスト受
面（４１）に設ける油溝（４２）に達する長さに設定し
たのである。However, in the scroll compressor described above, as shown in detail in FIGS. 1 and 2, each of the first keyways (7
) are formed in a vertically communicating manner from the back side of the movable scroll (3) to the upper surface facing the suction bow (10) between the scrolls (2) and (3), and each of the first keyways (7) The radially inward length of the movable scroll (3)
The length is set so that each of the first keyways (7) reaches the oil groove (42) provided in the thrust receiving surface (41) during the revolution of the thrust bearing surface (41).

更に詳しくは、前記可動スクロール（３）の外周部位に
、径方向外方に向けて突出する一対のアーム部（３１）
を一体に設けて、この各アーム部（３１）に前記第１キ
ー溝（７）をそれぞれ形成すると共に、該各第１キー溝
（７）の長さを、前記可動スクロール（３）が固定スク
ロール（２）に対し一公転するとき、前記各第１キー溝
（７）の内周側端縁（７１）が前記油溝（４２）を乗り
越えて往復動されるような長さに設定する。More specifically, a pair of arm portions (31) protrude radially outward on the outer peripheral portion of the movable scroll (3).
are integrally provided, the first keyway (7) is formed in each arm portion (31), and the length of each first keyway (7) is fixed by the movable scroll (3). The length is set so that when one revolution is made with respect to the scroll (2), the inner peripheral edge (71) of each of the first keyways (7) is reciprocated over the oil groove (42). .

以上の構成とすることにより、前記可動スクロール（３
）が固定スクロール（２）に対し一公転されるとき、同
各図で示したように、前記各第１キー溝（７）の内周端
縁（７１）が前記油溝（４２）を乗り越え、この後読油
溝（４２）の油が前記内周端縁（７１）で外方に飛散さ
れて、前記オルダムリング（９）の各キー（９１）（９
２）へと積極的に給油されるのであり、また、前記飛故
油が前記各キー（９１）（９２）に衝突してミスト状と
なり、このミスト状の油が、吸入冷媒で前記各第１キー
溝（７）から吸入ボー）（１０）へと持上げられて、前
記各スクロール（２）（３）の圧縮室（１１）に供給さ
れ、該圧縮室（１１）が確実にシールされるのである。With the above configuration, the movable scroll (3
) makes one revolution with respect to the fixed scroll (2), as shown in the same figures, the inner peripheral edge (71) of each of the first keyways (7) climbs over the oil groove (42). , the oil in the post-reading oil groove (42) is splashed outward at the inner circumferential edge (71), and the oil in each key (91) (9) of the Oldham ring (9) is
2), and the flying oil collides with each of the keys (91) and (92) and becomes a mist, and this mist of oil is used as a suction refrigerant to supply oil to each of the keys (91) and (92). 1 from the keyway (7) to the suction bow (10), and is supplied to the compression chamber (11) of each of the scrolls (2) and (3), and the compression chamber (11) is reliably sealed. It is.

前記ハウジング（４）のスラスト受面（４１）は、前記
油溝（４２）を中心として内外方に、前記可動スクロー
ル（３）の旋回半径の２倍の幅となるように設けるので
あり、斯くするときには、前記可動スクロール（３）が
−開旋回することにより、前記スラスト受面（４１）の
全面に給油できるのである。The thrust receiving surface (41) of the housing (4) is provided inwardly and outwardly with the oil groove (42) as the center so as to have a width twice as large as the turning radius of the movable scroll (3). At this time, the movable scroll (3) rotates in an open position, thereby allowing oil to be supplied to the entire surface of the thrust receiving surface (41).

（発明の効果） 以上説明したように、本発明のスクロール形圧縮機では
、可動スクロール（３）に設ける第１キー溝（７）を、
可動スクロール（３）の裏面から吸入ボー）（１０）に
臨む表面にかけて上下連通状に形成すると共に、前記第
１キー溝（７）の径方向内方側の長さを、前記可動スク
ロール（３）の公転時、前記第１キー溝（７）がスラス
ト受面（４１）の周方向に設ける油溝（４２）に達する
長さに設定したから、前記可動スクロール（３）の公転
に伴いオルダムリング（９）の摺動部位に充分な油量を
給油できて、この摺動部位の良好な潤滑を行うことがで
き、しかも、例え低容量運転を行う場合にあっても、吸
入冷媒による油の持上げ量を大として、前記各スクロー
ル（２）（３）間の圧縮室を確実にシールできるに至っ
たのである。(Effects of the Invention) As explained above, in the scroll compressor of the present invention, the first keyway (7) provided in the movable scroll (3) is
The movable scroll (3) is formed in a vertically communicating manner from the back surface to the surface facing the suction bow (10), and the length of the radially inward side of the first keyway (7) is set to the movable scroll (3). ), the first keyway (7) is set to a length that reaches the oil groove (42) provided in the circumferential direction of the thrust receiving surface (41), so as the movable scroll (3) revolves, Oldham's A sufficient amount of oil can be supplied to the sliding part of the ring (9) to provide good lubrication of this sliding part, and even when operating at a low capacity, the suction refrigerant does not lubricate the sliding part. By increasing the lifting amount of the scrolls, the compression chambers between the scrolls (2) and (3) can be reliably sealed.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明にかかるスクロール形圧縮機の要部を示
す平面図、第２図は同縦断面図、第３図はスクロール形
圧縮機の一部を省略した全体構造図、第４図は従来例を
示す断面図である。 （２）・・・・・固定スクロール （３）・・・・・可動スクロール （４）・・・・・ハウジング （４１）・・・・スラスト受面 （４２）・・・・油溝 （７）・・・・・第１キー溝 （８）・・・・・第２キー溝 （９）・・・・・オルダムリング （９１）・・・・第１キー （９２）・・・・第２キー （ｌＯ）・・・・吸入ポート 第２図 第４図 「”力FIG. 1 is a plan view showing the main parts of a scroll compressor according to the present invention, FIG. 2 is a longitudinal sectional view of the same, FIG. 3 is an overall structural diagram of the scroll compressor with some parts omitted, and FIG. 4 is a sectional view showing a conventional example. (2)... Fixed scroll (3)... Movable scroll (4)... Housing (41)... Thrust receiving surface (42)... Oil groove (7 )...First keyway (8)...Second keyway (9)...Oldham ring (91)...First key (92)...No. 2 key (lO)... Suction port Figure 2 Figure 4 "" Power

Claims (1)

【特許請求の範囲】[Claims] １）ハウジング（４）の上部に形成するスラスト受面（
４１）に、固定スクロール（２）に噛合う可動スクロー
ル（３）の裏面を回動自由に支持すると共に、該可動ス
クロール（３）に設ける第１キー溝（７）に係合する第
１キー（９１）と、静止部材側に設ける第２キー溝（８
）に係合する第２キー（９２）とを直交状に備えるオル
ダムリング（９）を介装したスクロール形圧縮機におい
て、前記第１キー溝（７）を、前記可動スクロール（３
）の裏面から吸入ポート（１０）に臨む表面にかけて上
下を連通させて形成すると共に、この第１キー溝（７）
の径方向内方側の長さを、前記可動スクロール（３）の
公転時、前記第１キー溝（７）が前記スラスト受面（４
１）の周方向に形成する油溝（４２）に達する長さに設
定していることを特徴とするスクロール形圧縮機。1) Thrust bearing surface (
41), a first key that rotatably supports the back surface of the movable scroll (3) that engages with the fixed scroll (2), and that engages with a first keyway (7) provided in the movable scroll (3). (91) and a second keyway (8) provided on the stationary member side.
), the first keyway (7) is connected to the movable scroll (3).
) from the back side to the surface facing the suction port (10) so that the upper and lower sides communicate with each other, and this first keyway (7)
When the movable scroll (3) revolves, the first keyway (7) has a length on the radially inward side of the thrust receiving surface (4).
1) A scroll compressor characterized in that the length is set to reach the oil groove (42) formed in the circumferential direction.
JP1204369A 1989-08-07 1989-08-07 Scroll compressor Expired - Fee Related JPH0726619B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1204369A JPH0726619B2 (en) 1989-08-07 1989-08-07 Scroll compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1204369A JPH0726619B2 (en) 1989-08-07 1989-08-07 Scroll compressor

Publications (2)

Publication Number Publication Date
JPH0367080A true JPH0367080A (en) 1991-03-22
JPH0726619B2 JPH0726619B2 (en) 1995-03-29

Family

ID=16489375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1204369A Expired - Fee Related JPH0726619B2 (en) 1989-08-07 1989-08-07 Scroll compressor

Country Status (1)

Country Link
JP (1) JPH0726619B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0575493U (en) * 1992-03-11 1993-10-15 株式会社ゼクセル Scroll compressor
US6135739A (en) * 1997-10-01 2000-10-24 Mitsubishi Denki Kabushiki Kaisha Scroll compressor
US7204680B2 (en) * 2003-12-20 2007-04-17 Lg Electronics Inc. Oil supply device of scroll compressor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0575493U (en) * 1992-03-11 1993-10-15 株式会社ゼクセル Scroll compressor
US6135739A (en) * 1997-10-01 2000-10-24 Mitsubishi Denki Kabushiki Kaisha Scroll compressor
US7204680B2 (en) * 2003-12-20 2007-04-17 Lg Electronics Inc. Oil supply device of scroll compressor

Also Published As

Publication number Publication date
JPH0726619B2 (en) 1995-03-29

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