JPH0245685A - Oil supply mechanism for horizontal open compressor - Google Patents

Oil supply mechanism for horizontal open compressor

Info

Publication number
JPH0245685A
JPH0245685A JP19377688A JP19377688A JPH0245685A JP H0245685 A JPH0245685 A JP H0245685A JP 19377688 A JP19377688 A JP 19377688A JP 19377688 A JP19377688 A JP 19377688A JP H0245685 A JPH0245685 A JP H0245685A
Authority
JP
Japan
Prior art keywords
oil
passage
seal assembly
bearing
compression element
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.)
Pending
Application number
JP19377688A
Other languages
Japanese (ja)
Inventor
Kameichi Mizutani
水谷 亀一
Hiromitsu Hirata
平田 博光
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 JP19377688A priority Critical patent/JPH0245685A/en
Publication of JPH0245685A publication Critical patent/JPH0245685A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02Lubrication; Lubricant separation
    • F04C29/023Lubricant distribution through a hollow driving shaft
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04Heating; Cooling; Heat insulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE:To positively cool a seal assembly unit by providing an orifice in a supply oil passage reaching a compression element side. CONSTITUTION:A drive shaft 7 provides in its shaft inside a supply oil passage 71 having the first and second passages 71a, 71b distributing oil, sucked from a supply oil pump 20, to the side of a compression element A and to the side of a bearing 9 and a seal assembly unit 10. And the first passage 71a, reaching the side of the compression element A, provides an orifice 30 limiting a supply amount of oil to the first passage 71a and compensating a supply amount of oil to the second passage 71b reaching the side of the bearing 9 and the seal assembly unit 10. In this way, the seal assembly unit 10 can be surely prevented from its seizure due to insufficiency of oil.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は主として冷凍装置に使用する横型開放圧縮機の
給油機構に関する。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention mainly relates to an oil supply mechanism for a horizontal open compressor used in a refrigeration system.

(従来の技術) 従来、外部駆動源からの動力で圧縮要素を駆動するよう
にした模型開放圧縮機は、特開昭61−291792号
公報に示され、また、第4図に示したように、一側を開
放した横型ケーシング(C)に、固定スクロール(S、
)と可動スクロール(S2)とから成る圧縮要素(A)
を内装し、この圧縮要素(A)の前記可動スクロール(
B2)を駆動する駆動軸(D)を、前記ケーシング(C
)の開放側から外方に突出させ、この突出軸部に外部駆
動源に連動するブーU−(P)を取付けたものが知られ
ている。
(Prior Art) Conventionally, a model open compressor in which a compression element is driven by power from an external drive source is disclosed in Japanese Patent Application Laid-Open No. 61-291792, and as shown in FIG. , a horizontal casing (C) with one side open, and a fixed scroll (S,
) and a movable scroll (S2).
The movable scroll (
The drive shaft (D) that drives the casing (C
) is made to protrude outward from the open side, and a boo U-(P) linked to an external drive source is attached to the protruding shaft portion.

所で、前記駆動軸(D)は、前記ケーシング(C)の開
放側に固定するフロントエンドプレート(F)に第1軸
受(B、)を介して支持すると共ニ、前記フロ7トエン
ドプレート(F)に固定のスリーブ(E)の外方先端側
に第2軸受(B2)を介して支持し、そして、前記スリ
ーブ(E)内にフロントシール組立体(G)を組付けて
いるのであって、前記プーリー(P)の駆動により前記
駆動軸(D)を回動させて可動スクロール(B2)を公
転させ、吸入口(H)から吸入する冷媒ガスを圧縮し、
前記固定スクロール(S、)の吐出口(K)から、吐出
チャンバー(L)を経て吐出するようになっている。
Incidentally, the drive shaft (D) is supported via a first bearing (B,) on a front end plate (F) fixed to the open side of the casing (C), and (F) is supported on the outer tip side of the sleeve (E) fixed through the second bearing (B2), and the front seal assembly (G) is assembled inside the sleeve (E). The drive shaft (D) is rotated by the drive of the pulley (P) to revolve the movable scroll (B2), and the refrigerant gas sucked from the suction port (H) is compressed;
The liquid is discharged from the discharge port (K) of the fixed scroll (S,) through the discharge chamber (L).

(発明が解決しようとする課題) 所が、以上の如く構成する圧縮機において、前記スリー
ブ(E)内にフロントシール組立体(G)を設けている
から、この組立体(G)により、前記ケーシング(C)
内がシールされ、前記ケーシング(C)内の冷媒や給油
された油が外部に漏れることはないのであるが、前記フ
ロントシール組立体(G)に対する冷却が考慮されてい
ないため、その耐久性が悪く、前記ケーシング(C)の
シールが悪くなる問題がある。
(Problem to be Solved by the Invention) However, in the compressor configured as described above, since the front seal assembly (G) is provided within the sleeve (E), this assembly (G) Casing (C)
The inside is sealed, and the refrigerant and oil in the casing (C) do not leak to the outside, but since cooling of the front seal assembly (G) is not taken into consideration, its durability is limited. Unfortunately, there is a problem that the seal of the casing (C) deteriorates.

即ち、前記フロントシール組立体(G)は、前記スリー
ブ(E)と駆動軸(D)との間に組立てられており、前
記駆動軸(D)の駆動回転で加熱されることから、冷却
を積極的に行わないと、そのシール機能が低下すること
になるのである。
That is, the front seal assembly (G) is assembled between the sleeve (E) and the drive shaft (D), and is heated by the drive rotation of the drive shaft (D), so it is difficult to cool it. If this is not done proactively, the sealing function will deteriorate.

本発明の目的は、潤滑箇所への給油する潤滑油を利用し
て、横型ケーシングの開放側に設けるシール組立体を積
極的に冷却し、前記シール組立体の耐久性を増大できる
ようにする点にある。
An object of the present invention is to actively cool a seal assembly provided on the open side of a horizontal casing by using lubricating oil supplied to a lubricating point, thereby increasing the durability of the seal assembly. It is in.

(課題を解決するための手段) しかして、本発明は、横型ケーシング(1)の一側に圧
縮要素(A)を内装し、該圧縮要素(A)を駆動する駆
動軸(7)を前記ケーシング(1)の他側開放側から外
方に突出させて、外部駆動源により駆動するようにした
横型開放圧縮機の給油機構であって、前記ケーシング(
1)の開放側に、前記駆動軸(7)を支持する軸受(9
)と、該駆動軸(7)周りからの漏れをシールするシー
ル組立体(10)とを配設すると共に、前記圧縮要素(
A)と軸受(9)との間に、底部油溜め(1a)から油
を汲上げる給油ポンプ(20)を配設する一方、前記駆
動軸(7)の軸内に、前記ポンプ(20)から汲上げた
油を前記圧縮要素(A)側と前記軸受(9)及びシール
組立体(10)側とに振り分ける第1及び第2通路(7
1a)  (7l b)をもつ給油通路(71)を設け
て、前記圧縮要素(A)側へ至る第1通路(71a)に
、該第1通路(71a)の給油量を制限して前記軸受(
9)及びシール組立体(10)側に至る第2通路(7l
 b)への給油量を補償するオリフィス(30)を設け
たものである。
(Means for Solving the Problems) Accordingly, the present invention has a compression element (A) installed in one side of a horizontal casing (1), and a drive shaft (7) for driving the compression element (A). A lubrication mechanism for a horizontal open compressor that projects outward from the other open side of a casing (1) and is driven by an external drive source, the lubrication mechanism of the casing (1) being driven by an external drive source.
A bearing (9) supporting the drive shaft (7) is disposed on the open side of the drive shaft (7).
) and a seal assembly (10) for sealing against leakage around the drive shaft (7), and the compression element (
An oil supply pump (20) for pumping up oil from the bottom oil reservoir (1a) is disposed between A) and the bearing (9), and the pump (20) is disposed within the shaft of the drive shaft (7). first and second passages (7) that distribute the oil pumped up from the compressor element (A) side and the bearing (9) and seal assembly (10) side;
1a) An oil supply passage (71) having a diameter (7l b) is provided, and the oil supply amount of the first passage (71a) is limited to the first passage (71a) leading to the compression element (A) side. (
9) and a second passageway (7l) leading to the seal assembly (10) side.
b) is provided with an orifice (30) to compensate for the amount of oil supplied.

(作用) ケーシング(1)の一側に内装し駆動軸(7)により駆
動される圧縮要素(A)と、前記ケーシング(1)の他
側開放側に配設され前記駆動軸(7)を支持する軸受(
9)との間に給油ポンプ(20)があって、しかも駆動
軸(7)には、前記ポンプ(20)から汲上げた油を圧
縮要素(A)側と前記軸受(9)及び該軸受側に設けて
前記駆動軸(7)周りからの漏れをシールするシール組
立体(10)側とに振り分ける第1及び第2通路(71
a)  (7l b)をもつ給油通路(71)があるた
め、底部油溜め(1a)の油を給油ポンプ(20)で汲
上げて、給油通路(71)の第1通路(71a)及び第
2通路(7l b)により振り分けて、前記圧縮要素(
A)の軸受部分と軸受(9)及びシール組立体(10)
とに給油することができ、従って、圧縮機起動初期にお
いても、前記圧縮要素(A)の軸受部分と軸受(9)と
シール組立体(10)とに速やかに給油することができ
るのであり、又、前記圧縮要素(A)側へ至る第1通路
(71a)にはでオリフィス(30)を設けて第1通路
(71a)の給油量を制限し、前記軸受(9)及びシー
ル組立体(10)側に至る第2通路(71b)への給油
量を補償するようにしているため、前記シール組立体(
10)を確実に冷却でき、このシール組立体(10)の
潤滑油不足による焼付きを確実に防止できるのである。
(Function) A compression element (A) is installed inside one side of the casing (1) and is driven by a drive shaft (7), and a compression element (A) is provided on the other open side of the casing (1) and drives the drive shaft (7). Supporting bearing (
There is an oil supply pump (20) between the drive shaft (7) and the compression element (A) side and the bearing (9) and the bearing. A seal assembly (10) is provided on the side and seals leakage from around the drive shaft (7), and first and second passages (71)
a) Since there is an oil supply passage (71) with (7l b), the oil in the bottom oil reservoir (1a) is pumped up by the oil supply pump (20) and the oil is pumped up into the first passage (71a) and the first passage of the oil supply passage (71). The compression element (
A) Bearing part, bearing (9) and seal assembly (10)
Therefore, the bearing portion of the compression element (A), the bearing (9), and the seal assembly (10) can be quickly lubricated even at the initial stage of starting up the compressor. Further, an orifice (30) is provided in the first passage (71a) leading to the compression element (A) side to limit the amount of oil supplied to the first passage (71a), and the bearing (9) and seal assembly ( Since the amount of oil supplied to the second passageway (71b) leading to the side (10) is compensated, the seal assembly (71b)
10) can be reliably cooled, and seizing of the seal assembly (10) due to lack of lubricating oil can be reliably prevented.

(実施例) 図において、(1)は一側を閉鎖し、他側を開放すると
共に底部に底部油溜め(1a)をもった横型ケーシング
であって、このケーシング(1)内の一側には、固定ス
クロール(2)と該固定スクロール(2)に対し公転す
る公転スクロール(3)と、該公転スクロール(3)を
公転させる公転機構(4)とから成る圧縮要素(A)と
、架構(5)とを配置し、この架橋(5)の一端に、前
記ケーシングの開放側に向って延びるハウジング(6)
を取付けると共に、前記架橋(5)及びハウジング(6
)の中心部に、1本の駆動軸(7)を回転自由に配置し
、この駆動軸(7)の一端部を前記公転機構(4)に連
動させ、又、駆動軸(7)の他端側を、前記ケーシング
(1)の開放口(1b)から外方に突出させて、この突
出部に駆動輪(8)を取付け、外部駆動源により駆動す
るごとく成している。
(Example) In the figure, (1) is a horizontal casing with one side closed and the other side open and having a bottom oil reservoir (1a) at the bottom. A compression element (A) consisting of a fixed scroll (2), a revolving scroll (3) that revolves around the fixed scroll (2), and a revolving mechanism (4) that revolves the revolving scroll (3), and a frame. (5) and a housing (6) extending toward the open side of the casing at one end of the bridge (5).
At the same time, the bridge (5) and the housing (6) are attached.
), one drive shaft (7) is arranged freely to rotate, one end of this drive shaft (7) is interlocked with the revolution mechanism (4), and the other drive shaft (7) The end side is made to protrude outward from the opening (1b) of the casing (1), and a drive wheel (8) is attached to this protrusion so as to be driven by an external drive source.

しかして、図示した実施例では、前記ケーシング(1)
の開放側近くに設ける前記ハウジング(6)の中心部に
軸受(9)を設けて、前記駆動軸(7)を支持し、又、
前記軸受(9)と前記ケーシング(1)の開放口(1b
)内側との間に前記駆動軸(7)周りからの漏れをシー
ルするシール組立体(10)を配設すると共に、前記圧
縮要素(A)と前記軸受(9)との間における前記駆動
軸(7)の周りに、前記ケーシング(1)の底部油溜め
(1a)から油を汲上げる給油ポンプ(20)を配設す
る一方、前記駆動軸(7)の軸内に、前記ポンプ(20
)から汲上げた油を前記圧縮要素(A)側と前記軸受(
9)及びシール組立体(10)側とに振り分ける第1及
び第2通路(71a)  (7l b)をもつ給油通路
(71)を設けて、前記圧縮要素(A)側へ至る第1通
路(71a)に、該第1通路(71a)の給油量を制限
して前記軸受(9)及びシール組立体(10)側に至る
第2通路(7l b)への給油量を補償するオリフィス
(30)を設けて、前記シール組立体(10)を確実に
冷却できるようにしたのである。
Thus, in the illustrated embodiment, the casing (1)
A bearing (9) is provided in the center of the housing (6) provided near the open side of the housing to support the drive shaft (7), and
The bearing (9) and the opening (1b) of the casing (1)
) A seal assembly (10) for sealing leakage from around the drive shaft (7) is disposed between the inner side and the drive shaft between the compression element (A) and the bearing (9). An oil supply pump (20) for pumping up oil from the bottom oil reservoir (1a) of the casing (1) is disposed around the drive shaft (7).
) is pumped up from the compression element (A) side and the bearing (
9) and the seal assembly (10) side, a first passageway (71) having first and second passageways (71a) (7lb) is provided, and the first passageway (71) leads to the compression element (A) side. An orifice (30) that limits the amount of oil supplied to the first passage (71a) and compensates the amount of oil supplied to the second passage (7lb) leading to the bearing (9) and seal assembly (10) side. ) to ensure that the seal assembly (10) is cooled.

前記給油通路(71)は、前記駆動軸(7)の中間部外
周に開口する一つの主通路(71c)と、該主通路(7
1c)の奥部から前記駆動軸(7)の一端に亘って貫通
する前記第1通路(71a)と前記主通路(71c)の
奥部から前記駆動軸(7)の他端側に向って延び、その
奥部から半径方向に貫通する略り字形の前記第2通路(
71b)とから成り、前記第1通路(71a)に送られ
た油は、前記圧縮要素(A)における公転機構(4)の
軸受部及び前記架橋(5)の中心部に設けて前記駆動軸
(7)の一端側を支持する軸受(40)に給油するので
ある。尚、前記第1通路(71a)及び第2通路(7l
 b)の入口側部分は、その内径を比較的大きく形成し
て、ドリルによる加工が容易に行えるようにしている。
The oil supply passage (71) includes one main passage (71c) that opens at the outer periphery of the intermediate portion of the drive shaft (7), and the main passage (71).
1c) extending from the back to one end of the drive shaft (7) and passing through the first passage (71a) and the main passage (71c) from the back to the other end of the drive shaft (7). The second passage (which has an abbreviated shape) extends and penetrates in the radial direction from the inner part thereof.
71b), and the oil sent to the first passage (71a) is provided at the bearing part of the revolution mechanism (4) in the compression element (A) and at the center of the bridge (5), and the oil is sent to the drive shaft. (7) The bearing (40) supporting one end side is supplied with oil. In addition, the first passage (71a) and the second passage (7l)
The inlet side portion b) is formed to have a relatively large inner diameter so that machining with a drill can be easily performed.

又、前記シール組立体(10)は、前記開放口(1b)
内面に設ける金属性の弁座(11)と対接する金属性の
弁体(12)と前記駆動軸(7)の外周に保持する弾性
筒(13)と前記弁体(12)を前記弁座(11)方向
に付勢するばね(14)とを備えたメカニカルシールか
ら成す、前記弁体(12)の弁座(11)との接触によ
り前記開放口(1b)を閉鎖し、ケーシング(1)内の
冷媒などの流体が駆動軸(7)周りから外部に漏れるの
を防止している。尚、前記シール組立体(10)は、メ
カニカルシール以外の構造であつてもよい。又、前記オ
リフィス(30)は、前記第1通路(71a)の内径よ
り小径の絞り孔をもったオリフィス筒から成り、このオ
リフィス筒を、前記第1通路(71a)の出口内面に螺
着し、前記第1通路(71a)から圧縮要素(A)に給
油する油量を制限している。尚、第1通路(71a)の
給油量を制限して第2通路(71b)への給油量を補償
するのは、前記給油通路(71)の入口に対し遠く離れ
た位置にシール組立体(10)があって、このシール組
立体(10)箇所に油が到達しにくいし、又、特にメカ
ニカルシールを用いた場合、前記弁体(12)と弁座(
11)との接触部に摩擦熱が発生しやすいためである。
The seal assembly (10) also includes the opening (1b).
A metallic valve seat (11) provided on the inner surface, a metallic valve body (12) that faces the valve seat, an elastic cylinder (13) held on the outer periphery of the drive shaft (7), and the valve body (12) connected to the valve seat. (11) The opening (1b) is closed by contact with the valve seat (11) of the valve body (12), which is a mechanical seal equipped with a spring (14) that urges the valve body (11) in the casing (1) direction. ) is prevented from leaking outside around the drive shaft (7). Note that the seal assembly (10) may have a structure other than a mechanical seal. Further, the orifice (30) is composed of an orifice tube having a throttle hole with a smaller diameter than the inner diameter of the first passageway (71a), and this orifice tube is screwed onto the inner surface of the outlet of the first passageway (71a). , limits the amount of oil supplied to the compression element (A) from the first passage (71a). In order to limit the amount of oil supplied to the first passage (71a) and compensate for the amount of oil supplied to the second passage (71b), a seal assembly ( 10), making it difficult for oil to reach the seal assembly (10), and especially when using a mechanical seal, the valve body (12) and valve seat (
This is because frictional heat is likely to be generated at the contact portion with 11).

又、前記オリフィス(30)は、第1通路(71a)の
出口に設ける他、該第1通路(71a)の入口或は中間
部位に設けてもよいのである。
Further, the orifice (30) may be provided not only at the outlet of the first passageway (71a) but also at the entrance or intermediate portion of the first passageway (71a).

又、前記給油ポンプ(20)は、外周面に偏心溝(21
a)をもった円筒形ロータ(21)と、ベーン(22)
とを備え、前記ロータ(21)を、前記駆動軸(7)の
外周に相対回転不能に套嵌すると共に、前記ハウジング
(6)に、前記ロータ(21)の円筒外面(2l b)
に摺接する円孔(61)を設けて、前記偏心溝(21a
)と前記円孔(61)とでシリンダ室(23)を形成す
ると共に、前記ハウジング(6)に、前記偏心溝(21
a)の底面に頂部を当接し、かつ、前記シリンダ室(2
3)を吸入室(23a)と吐出室(23b)とに仕切る
前記ベーン(22)と、該ベーン(22)を押圧するベ
ーンばね(24)とを設けたものである。
Further, the oil supply pump (20) has an eccentric groove (21) on the outer peripheral surface.
cylindrical rotor (21) with a) and vanes (22)
The rotor (21) is fitted around the outer periphery of the drive shaft (7) in a relatively non-rotatable manner, and the cylindrical outer surface (2l b) of the rotor (21) is fitted into the housing (6).
A circular hole (61) is provided in sliding contact with the eccentric groove (21a).
) and the circular hole (61) form a cylinder chamber (23), and the eccentric groove (21) is formed in the housing (6).
a), and the top part is in contact with the bottom surface of the cylinder chamber (2).
3) is provided with the vane (22) that partitions the air purifier into a suction chamber (23a) and a discharge chamber (23b), and a vane spring (24) that presses the vane (22).

又、前記ハウジング(6)における前記ベーン(22)
の両側部位には、第3図のごとく前記吸入室(23a)
に開口する吸入路(62)と、前記吐出室(23b)に
開口する吐出路(63)とを設けて、前記吸入路(62
)を、前記油溜め(1a)に開口する吸油口をもった給
油管(50)に接続しており、又、前記吐出路(63)
は、ハウジング(6)の軸方向に延びる長孔状に形成し
ている。そして、前記ロータ(21)の円筒外面(2l
 b)に、前記偏心溝(21a)と軸方向に所定間隔を
置いて前記吐出路(63)及び前記給油量・路(71)
の主通路(71c)と連通ずる環状溝(21c)を設け
て、前記吐出室(23b)の油を、前記給油通路(71
)に給油できるようにしている。
Further, the vane (22) in the housing (6)
As shown in FIG. 3, the suction chambers (23a) are located on both sides of the
A suction passage (62) opening to the discharge chamber (23b) and a discharge passage (63) opening to the discharge chamber (23b) are provided.
) is connected to an oil supply pipe (50) having an oil inlet opening into the oil reservoir (1a), and the discharge passage (63)
is formed in the shape of a long hole extending in the axial direction of the housing (6). Then, the cylindrical outer surface (2l) of the rotor (21)
b), the discharge passage (63) and the oil supply passage (71) are arranged at a predetermined interval in the axial direction from the eccentric groove (21a).
An annular groove (21c) communicating with the main passageway (71c) is provided to direct the oil in the discharge chamber (23b) to the oil supply passageway (71c).
) can be refueled.

又、前記ロータ(21)の一端部内面に、前記第2通路
(7l b)の出口に開口する連通路(21d)を設け
て、前記第2通路(7l b)に送られる油を、前記連
通路(21d)を経て軸受(10)に給油し、更にこの
軸受(9)におけるインナーリングとアウターリングと
の間の隙間などを経て前記シール組立体(10)に給油
するようにしている。
Further, a communication passage (21d) that opens to the outlet of the second passage (7l b) is provided on the inner surface of one end of the rotor (21), so that the oil sent to the second passage (7l b) is connected to the second passage (7l b). The bearing (10) is supplied with oil through the communication path (21d), and the seal assembly (10) is further supplied with oil through the gap between the inner ring and the outer ring of the bearing (9).

尚、図中(62)は前記ハウソング(6)に設けて前記
シール体(30)11所の熱を放熱する放熱孔である。
Note that (62) in the figure is a heat radiation hole provided in the housing song (6) to radiate heat from the seal body (30) 11.

本発明は以上のごとく構成するもので、駆動軸(7)を
駆動することにより、ケーシング(1)の底部油溜め(
1a)の油が、給油管(5o)、吸入路(62)を経て
シリンダ室(23)の吸入室(23a)に吸い込まれ、
前記駆動軸(7)の回転に伴い前、記偏心溝(21a)
のベーン(22)との位置関係が変って、前記吸入室(
23a)の油が、前記吐出室(23b)に吐出され、こ
の吐出室(23b)から吐出路(63)を経て給油通路
(71)に供給される。そして、この給油通路(71)
における主通路(71c)の出口から第1及び第2通路
(71a)  (7l b)に振り分けられて、第1通
路(71a)から圧縮要素(A)の軸受部分に、又、第
2通路(7l b)から軸受(9)及びシール組立体(
10)に給油できるのである。斯くのごとく第1及び第
2通路(71a)  (7l b)で振り分けて圧縮要
素(A)側と軸受(9)及びシール組立体(10)側と
に給油することができるのであるから、圧縮機起動初期
においても各潤滑箇所に速やかに給油することができる
のであり、又、第1通路(71a)に、オリフィス(3
0)を設けて、第1通路(71a)への給油量を制限し
前記軸受(9)及びシール組立体(10)側に至る第2
通路(71b)への給油量を補償するようにしているた
め、前記したごとく振り分けて圧縮要素(A)の軸受部
分及び軸受(9)、シール組立体(10)に給油する構
造であっても軸受(9)側に設けるシール組立体(10
)へ常に所定量の油を給油することができるのである。
The present invention is constructed as described above, and by driving the drive shaft (7), the bottom oil sump (
1a) is sucked into the suction chamber (23a) of the cylinder chamber (23) through the oil supply pipe (5o) and the suction path (62),
As the drive shaft (7) rotates, the eccentric groove (21a)
The positional relationship with the vane (22) changes, and the suction chamber (
The oil 23a) is discharged into the discharge chamber (23b), and is supplied from the discharge chamber (23b) to the oil supply passage (71) via the discharge passage (63). And this refueling passage (71)
from the outlet of the main passage (71c) to the first and second passages (71a) (7lb), and from the first passage (71a) to the bearing part of the compression element (A), 7l b) to bearing (9) and seal assembly (
10) can be refueled. In this way, oil can be distributed between the first and second passages (71a) (7lb) and supplied to the compression element (A) side and the bearing (9) and seal assembly (10) sides. Even at the initial stage of machine startup, each lubricating point can be quickly supplied with oil, and the first passage (71a) is equipped with an orifice (3
0) to limit the amount of oil supplied to the first passage (71a) and a second passage leading to the bearing (9) and seal assembly (10) side.
Since the amount of oil supplied to the passage (71b) is compensated, even if the structure is such that the bearing portion of the compression element (A), the bearing (9), and the seal assembly (10) are supplied with oil in a distributed manner as described above. Seal assembly (10) provided on the bearing (9) side
) can always be supplied with a predetermined amount of oil.

従って、シール組立体(10)部分の油不足をなりシ、
このシール組立体(10)を確実に冷却することができ
て、シール組立体(10)の焼付けを確実に防止できる
のである。
Therefore, there is no oil shortage in the seal assembly (10).
This seal assembly (10) can be reliably cooled and seizure of the seal assembly (10) can be reliably prevented.

(発明の効果) 以上のごとく本発明は、横型ケーシング(1)の一側に
圧縮要素(A)を内装し、該圧縮要素(A)を駆動する
駆動軸(7)を前記ケーシング(1)の他側開放側から
外方に突出させて、外部駆動源により駆動するようにし
た横型開放圧縮機の給油機構であって、前記ケーシング
(1)の開放側に、前記駆動軸(7)を支持する軸受(
9)と、該駆動軸(7)周りからの絹れをシールするシ
ール組立体(10)とを配設すると共に、前記圧縮要素
(A)と軸受(9)との間に、底部油溜め(1a)から
油を汲上げる給油ポンプ(20)を配設する一方、前記
駆動軸(7)の軸内に、前記ポンプ(20)から汲上げ
た油を前記圧縮要素(A)側と前記軸受(9)及びシー
ル組立体(10)側とに振り分ける第1及び第2通路(
71a)  (7l b)をもつ給油通路(71)を設
けたのであるから、圧縮機の起動初期においても、前記
圧縮要素(A)の軸受部分及び駆動軸(7)の軸受(9
)部分、シール組立体(10)部分などの潤滑箇所に所
定量の油を速やかに確実に給油できるのでり、しかも、
第1通路(71a)と第2通路(7l b)とに振り分
けた給油通路(71)の圧縮要素(A)側へ至る第1通
路(71a)に、該第1通路(71a)の給油量を制限
して前記軸受(9)及びシール組立体(1o)側に至る
第2通路(7l b)への給油量を補償するオリフィス
(30)を設けたのであるから、シール組立体(10)
に対しては油不足がなく、冷却に必要な油が給油される
から、該シール組立体(1o)を確実に冷却でき、シー
ル組立体(1o)の焼付けを確実に防止できるのである
(Effects of the Invention) As described above, the present invention has a compression element (A) installed inside one side of a horizontal casing (1), and a drive shaft (7) for driving the compression element (A) attached to the casing (1). A refueling mechanism for a horizontal open compressor that projects outward from the other open side and is driven by an external drive source, the drive shaft (7) being mounted on the open side of the casing (1). Supporting bearing (
9), and a seal assembly (10) for sealing against leakage from around the drive shaft (7), and a bottom oil sump is provided between the compression element (A) and the bearing (9). An oil supply pump (20) for pumping oil from the drive shaft (7) is provided, and the oil pumped from the pump (20) is pumped between the compression element (A) side and the drive shaft (7). First and second passages (
Since the oil supply passage (71) with the oil supply passage (71a) (71b) is provided, even in the initial stage of starting the compressor, the bearing portion of the compression element (A) and the bearing (9) of the drive shaft (7) are provided.
), the seal assembly (10), and other lubricating points can be quickly and reliably supplied with a predetermined amount of oil.
The amount of oil supplied in the first passage (71a) is distributed to the first passage (71a) leading to the compression element (A) side of the oil supply passage (71) divided into the first passage (71a) and the second passage (7l b). Since the orifice (30) is provided to limit the amount of oil supplied to the second passageway (7lb) leading to the bearing (9) and the seal assembly (1o), the seal assembly (10)
Since there is no oil shortage and the oil necessary for cooling is supplied to the seal assembly (1o), the seal assembly (1o) can be reliably cooled and seizure of the seal assembly (1o) can be reliably prevented.

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

第1図は本発明は給油機構の一実施例を示す一部切欠断
面図、第2図及び第3図は給油ポンプ部分のみの断面図
、第4図は従来例の説明図である。 (1)・・・・ケーシング (la)・・・・底部油溜め (A)・・・・圧縮要素 (7)・・・・駆動軸 (7エ)・・・・給油通路 (71a・・・・第1通路 (7l b)・・・・第2通路 (9)・・・・軸受 (10)・・・・シール組立体 (20)・・・・給油ポンプ (30)・・・・オリフィス
FIG. 1 is a partially cutaway sectional view showing an embodiment of the oil supply mechanism of the present invention, FIGS. 2 and 3 are sectional views of only the oil supply pump portion, and FIG. 4 is an explanatory diagram of a conventional example. (1)...Casing (la)...Bottom oil reservoir (A)...Compression element (7)...Drive shaft (7e)...Oil supply passage (71a... ...First passage (7l b)...Second passage (9)...Bearing (10)...Seal assembly (20)...Oil pump (30)... orifice

Claims (1)

【特許請求の範囲】[Claims] 1)横型ケーシング(1)の一側に圧縮要素(A)を内
装し、該圧縮要素(A)を駆動する駆動軸(7)を前記
ケーシング(1)の他側開放側から外方に突出させて、
外部駆動源により駆動するようにした横型開放圧縮機の
給油機構であつて、前記ケーシング(1)の開放側に、
前記駆動軸(7)を支持する軸受(9)と、該駆動軸(
7)周りからの漏れをシールするシール組立体(10)
とを配設すると共に、前記圧縮要素(A)と輸受(9)
との間に、底部油溜め(1a)から油を汲上げる給油ポ
ンプ(20)を配設する一方、前記駆動軸(7)の軸内
に、前記ポンプ(20)から汲上げた油を前記圧縮要素
(A)側と前記軸受(9)及びシール組立体(10)側
とに振り分ける第1及び第2通路(71a)(71b)
をもつ給油通路(71)を設けて、前記圧縮要素(A)
側へ至る第1通路(71a)に、該第1通路(71a)
の給油量を制限して前記軸受(9)及びシール組立体(
10)側に至る第2通路(71b)への給油量を補償す
るオリフィス(30)を設けたことを特徴とする横型開
放圧縮機の給油機構。
1) A compression element (A) is installed inside one side of the horizontal casing (1), and a drive shaft (7) for driving the compression element (A) projects outward from the other open side of the casing (1). Let me,
A refueling mechanism for a horizontal open compressor driven by an external drive source, the casing (1) having an oil supply mechanism on the open side of the casing (1).
a bearing (9) that supports the drive shaft (7);
7) Seal assembly (10) to seal against leakage from surroundings
and the compression element (A) and the transport (9).
An oil supply pump (20) for pumping up oil from the bottom oil reservoir (1a) is disposed between the drive shaft (7) and the oil pump (20) pumped up from the pump (20). First and second passages (71a) (71b) divided into the compression element (A) side and the bearing (9) and seal assembly (10) side
an oil supply passageway (71) having a
In the first passageway (71a) leading to the side, the first passageway (71a)
The bearing (9) and the seal assembly (
10) An oil supply mechanism for a horizontal open compressor, characterized in that an orifice (30) is provided to compensate for the amount of oil supplied to the second passageway (71b) leading to the side.
JP19377688A 1988-08-03 1988-08-03 Oil supply mechanism for horizontal open compressor Pending JPH0245685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19377688A JPH0245685A (en) 1988-08-03 1988-08-03 Oil supply mechanism for horizontal open compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19377688A JPH0245685A (en) 1988-08-03 1988-08-03 Oil supply mechanism for horizontal open compressor

Publications (1)

Publication Number Publication Date
JPH0245685A true JPH0245685A (en) 1990-02-15

Family

ID=16313615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19377688A Pending JPH0245685A (en) 1988-08-03 1988-08-03 Oil supply mechanism for horizontal open compressor

Country Status (1)

Country Link
JP (1) JPH0245685A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0512683U (en) * 1991-07-31 1993-02-19 サンデン株式会社 Rotating machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5140283A (en) * 1974-10-01 1976-04-03 Omori Shozo Jidoseikanhoho oyobisono sochi
JPS61291792A (en) * 1985-06-18 1986-12-22 Sanden Corp Variable capacity scroll type compressor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5140283A (en) * 1974-10-01 1976-04-03 Omori Shozo Jidoseikanhoho oyobisono sochi
JPS61291792A (en) * 1985-06-18 1986-12-22 Sanden Corp Variable capacity scroll type compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0512683U (en) * 1991-07-31 1993-02-19 サンデン株式会社 Rotating machine

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