JPH0245686A - Horizontal open compressor - Google Patents

Horizontal open compressor

Info

Publication number
JPH0245686A
JPH0245686A JP19377788A JP19377788A JPH0245686A JP H0245686 A JPH0245686 A JP H0245686A JP 19377788 A JP19377788 A JP 19377788A JP 19377788 A JP19377788 A JP 19377788A JP H0245686 A JPH0245686 A JP H0245686A
Authority
JP
Japan
Prior art keywords
drive shaft
bearing
oil
passage
bearings
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
JP19377788A
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 JP19377788A priority Critical patent/JPH0245686A/en
Publication of JPH0245686A publication Critical patent/JPH0245686A/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
    • F04C29/025Lubrication; Lubricant separation using a lubricant pump

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 decrease axial deflection of a drive shaft by center-shaft supporting the drive shaft while mounting a supply oil pump to be interposed between two bearings in the drive shaft. CONSTITUTION:The first bearing 9 is provided adjacent to a compression element A in a mounting structure 5 internally mounted to a casing 1, further the second bearing 10 is provided adjacent to an opening side of the casing 1. A drive shaft 7 is supported in a center-shaft manner to each of these bearings 9, 10, while a supply oil pump 20, sucking oil from a bottom part oil reservoir 1a, is mounted interposing between both the bearings 9, 10. The drive shaft 7, being supported in the center-shaft manner, enables axial deflection to be minimized of the drive shaft 7 while even axial deflection to be eliminated by driving of the pump 20.

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に
関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a horizontal open compressor mainly used in refrigeration equipment.

(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(
S2)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
動源に連動するプーリー(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 pulley (P) interlocked with an external drive source is attached to this 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に、前記フロントエン
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(Sl)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,) by a front end plate (F) fixed to the open side of the casing (C), and the front end plate (F) is supported via a second bearing (B2) on the outer tip side of a sleeve (E) fixed to the sleeve (E), and a front seal assembly (G) is assembled within the sleeve (E), Rotating the drive shaft (D) by driving the pulley (P) to revolve the movable scroll (B2) and compressing refrigerant gas sucked from the suction port (H),
The liquid is discharged from the discharge port (K) of the fixed scroll (Sl) 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は、前記駆動
軸(D)をフロントエンドプレート(F)とこのフロン
トエンドプレー) (F)に固定されるスリーブ(E)
の先端部とに前記各軸受(B、)(B2)を設けており
、特に前記第2軸受(B2)は前記スリーブ(、E)を
、前記フロントエンドプレート(F)から外方に突出し
、この突出先端部に設けているため前記プーリー(P)
から駆動力を入力して11」記駆動軸(D)を駆動する
とき、軸(Aみが生ずることになり、軸受の耐久性に問
題があったし、また、前記公開公報には、給油を必要と
する潤滑部分への給油機構が示されていないが、前記構
造においては給油機構をコンパクトに形成できる構造と
なっておらず、このため給油機構の組込みが煩雑となり
、場合によっては全体が大形化する問題も存している。
(Problem to be Solved by the Invention) However, in the compressor configured as described above, the drive shaft (D) is connected to the front end plate (F) and the sleeve (F) fixed to the front end plate (F). E)
Each of the bearings (B, ) (B2) is provided at the tip of the sleeve (B, E), and in particular, the second bearing (B2) projects the sleeve (E) outward from the front end plate (F), The pulley (P) is provided at the tip of this protrusion.
When driving the drive shaft (D) described in 11 by inputting the driving force from Although the oil supply mechanism for the lubricated parts that require lubrication is not shown, the structure described above does not allow for a compact oil supply mechanism, which makes it complicated to assemble the oil supply mechanism, and in some cases, the entire oil supply mechanism becomes complicated. There are also problems that are getting bigger.

本発明の目的は、横型開放圧縮機における駆動軸を輪撓
み少なく支持して、その耐久性を向上すると共にデッド
スペースを利用して給油ポンプを組入れて、軸方向寸法
を大幅に拡大することなく小形で潤滑箇所への給油が行
えるようにするものである。
The purpose of the present invention is to support the drive shaft of a horizontal open compressor with less wheel deflection, improve its durability, and incorporate a refueling pump using the dead space without significantly increasing the axial dimension. It is small and allows lubricating points to be supplied.

(課題を解決するための手段) 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
縮機であって、ケーシング(1)に内装される架橋(5
)の前記圧縮要素(A)近くに第1軸受(9)を設け、
かつ、前記ケーシング(1)の開放側近くに第2軸受(
10)を設け、これら各軸受(9)(10)により前記
駆動軸(7)を両持ち支持すると共に、前記駆動軸(7
)における前記第1及び第2軸受(9)(10)の間に
、底部油溜め(1a)から油を汲上げる給油ポンプ(2
0)を介装する一方、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第1軸受(9)側
と前記第2軸受(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
)を設けたものである。
(Means for Solving the Problems) The present invention provides a compression element (A
) and drives the compression element (A).
The horizontal open compressor is driven by an external drive source by projecting outward from the other open side of the casing (1), the bridge (5) being built into the casing (1).
) a first bearing (9) is provided near the compression element (A);
and a second bearing (
10), and these bearings (9) and (10) support the drive shaft (7) on both sides, and the drive shaft (7)
) between the first and second bearings (9) and (10), an oil supply pump (2) pumping up oil from the bottom oil reservoir (1a).
0), while distributing the oil pumped up from the pump (20) into the first bearing (9) side and the second bearing (10) side within the shaft of the drive shaft (7). 1st and 2nd
Refueling passage (71) with passage (71a) (7l b)
).

(作用) 駆動軸(7)を、横型ケーシング(1)に内装する架橋
(5)に設けた第1及び第2軸受(9)(10)により
両持状に支持したから、前記駆動軸(7)の軸tAみを
最小にできると共に、前記各軸受(9)(10)間に給
油ポンプ(20)を介装したから、このポンプ(20)
の駆動による軸撓みも解消できるから、前記ポンプ(2
0)を設けながら軸方向寸法を拡大することはないので
、小形化が可能となるし、更に前記駆動軸(7)には、
前記ポンプ(20)から汲上げた油を前記第1軸受(9
)側と前記第2軸受(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
)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(71
a)及び第2通路(7l b)により振り分けて、前記
俗筆1及び第2軸受(9)(10)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、前記第1及び
第2軸受(9)(10)に速やかに給油することができ
るのである。
(Function) Since the drive shaft (7) is supported on both sides by the first and second bearings (9) and (10) provided on the bridge (5) installed in the horizontal casing (1), the drive shaft ( The axis tA of 7) can be minimized, and since the oil supply pump (20) is interposed between each of the bearings (9) and (10), this pump (20)
The shaft deflection caused by the drive of the pump (2) can also be eliminated.
Since the axial dimension is not increased while providing the drive shaft (7), it is possible to downsize the drive shaft (7).
The oil pumped up from the pump (20) is transferred to the first bearing (9).
) side and the second bearing (10) side, the oil supply passage (71
), the oil in the bottom oil sump (1a) is pumped into the oil supply pump (
20) and the first passage (71) of the refueling passage (71).
a) and the second passage (7l b), and the first and second bearings (9) and (10) can be supplied with oil. Therefore, even in the initial stage of compressor startup, the first and second The bearings (9) and (10) can be quickly refilled with oil.

(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)内の他側には、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、前記架橋(5)におけ
る前記圧縮要素(A)の近くに、第1軸受(9)を設け
、又、前記ケーシング(1)の開放側近くに第2軸受(
10)を設けて、前記駆動軸(7)を、前記第1軸受(
9)と第2軸受(10)とを介して両持ち支持すると共
に、これら第1及び第2軸受(9)(10)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)
を介装する一方、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第1軸受(9)側と前
記第2軸受(lO)側とに振り分ける第1及び第2通路
(71a)  (7lb)をもつ給油通路(71)を設
けたのである。
Thus, in the illustrated embodiment, a first bearing (9) is provided near the compression element (A) in the bridge (5), and a second bearing (9) is provided near the open side of the casing (1).
10) to connect the drive shaft (7) to the first bearing (
9) and a second bearing (10), and around the drive shaft (7) between the first and second bearings (9) and (10). Oil supply pump (20) that pumps oil from the bottom oil sump (1a)
while distributing the oil pumped up from the pump (20) to the first bearing (9) side and the second bearing (IO) side within the shaft of the drive shaft (7). A fuel supply passage (71) having a second passage (71a) (7lb) is provided.

この給油通路(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、前記公転機構(4)の軸受部及び前記第1軸受
(9)に給油するのであり、又、前記第2通路(7l 
b)は、前記第2軸受(10)と、後期するメカニカル
シール(30) とに給油するのである。
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 (71c).
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) supplies the bearing portion of the revolution mechanism (4) and the first bearing (9), and the second passage (71a) 7l
b) is to supply oil to the second bearing (10) and the mechanical seal (30) which will be installed later.

尚、前記メカニカルシール(30)への給油は、該メカ
ニカルシール(30)の冷却を兼ねるもので、前記第1
通路(71a)を介して前記各潤滑箇所へ給油する給油
量より、前記第2通路(2l b)を介して前記第2軸
受(10)及びメカニカルシール(30)へ給油する給
油量が多くなるように、前記第1通路(71a)には、
給油量を調整するためのオリフィス(71d)を設けて
いる。
Note that the oil supply to the mechanical seal (30) also serves to cool the mechanical seal (30).
The amount of oil supplied to the second bearing (10) and the mechanical seal (30) through the second passage (2l b) is greater than the amount of oil supplied to each of the lubrication points through the passage (71a). As such, in the first passage (71a),
An orifice (71d) is provided to adjust the amount of oil supplied.

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
外周に套嵌して、キー(100)により相対回転不能に
結合すると共に、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(21a)の底面に頂部を当
接し、かつ、前記シリンダ室(23)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) and is connected to the housing (6) so that the rotor (21) cannot rotate relative to the drive shaft (7), and the rotor (21) A circular hole (61
), the eccentric groove (21a) and the circular hole (61) are provided.
A cylinder chamber (23) is formed by forming a cylinder chamber (23), and the top portion of the housing (6) is brought into contact with the bottom surface of the eccentric groove (21a), and the cylinder chamber (23) is formed 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図の如く前記吸入室(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(11)に接続しており、又、前記吐出路(63)は
、ノ)つソング(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)及び前記給油通路(71)の
主通路(71c)と連通ずる環伏溝(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, a suction passage (62) opening into the suction chamber (23a) and a discharge passage (63) opening into the discharge chamber (23b) are provided on both sides of the suction passage ( 62)
is connected to an oil supply pipe (11) having an oil inlet opening into the oil reservoir (1a), and the discharge passage (63) has a length extending in the axial direction of the song (6). It is formed into a hole shape. Then, the cylindrical outer surface (2l) of the rotor (21)
b) is provided with an annular groove (21c) communicating with the main passage (71c) of the discharge passage (63) and the oil supply passage (71) at a predetermined interval in the axial direction from the eccentric groove (21a); , the oil in the discharge chamber (23b) is transferred to the oil supply passageway (71).
We are making it possible to refuel.

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)を経て第2軸受(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 second bearing (10) is supplied with oil through the communication path (21d).

又、前記駆動軸(7)における前記開放口(1b)と第
2軸受(10)との間における外周部位には、前記開放
口(1b)内面に設けるシール弁座(31)と対接する
シール弁(32)をもった前記メカニカルシール(30
)を設けて、前記ケーシング(1)内の冷媒などの流体
が前記開放口(1b)から外部に漏れるのを防止してい
る。
Further, on the outer circumference of the drive shaft (7) between the open port (1b) and the second bearing (10), a seal is provided on the inner surface of the open port (1b) and is in contact with a seal valve seat (31). Said mechanical seal (30) with a valve (32)
) is provided to prevent fluid such as refrigerant in the casing (1) from leaking to the outside from the opening (1b).

このメカニカルシール(30)は、ゴム性のシール材(
33)を前記駆動軸(7)に保持して駆動軸外周面から
の漏れを防ぎ、前記シール弁(32)のシール弁座(3
1)との接触により前記開放口(1b)を閉鎖している
。又、前記メカニカルシール(30)は、前記第2通路
(7l b)と連通していて、この第2通路(7l b
)に給油された油をメカニカルシール(30)部分に給
油できるようになっている。
This mechanical seal (30) is made of rubber sealing material (
33) on the drive shaft (7) to prevent leakage from the outer peripheral surface of the drive shaft, and the seal valve seat (3) of the seal valve (32)
1) closes the opening (1b). Further, the mechanical seal (30) communicates with the second passage (7l b), and the mechanical seal (30) communicates with the second passage (7l b).
) can be supplied to the mechanical seal (30).

尚、図中(62)は前記ハウジング(6)に設けて前記
メカニカルシール(30)W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 (6) to radiate heat from the mechanical seal (30)W.

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(11)、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(2
3a)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)から第1軸受(9)部分に、又、第2通路(
7l b)から第2Nl受(10)及びメカニカルシー
ル(30)all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
けて第1軸受(9)側と第2軸受(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
も各潤滑箇所部ち、第1及び第2軸受(9)(10)部
分、メカニカルシール(30)allに速やかに給油す
ることができるのである。又、駆動軸(7)を第1及び
第2軸受(9)(10)を介して両持ち支持し、この駆
動軸(7)における軸受間の中間部周りのデッドスペー
スなる箇所に給油ポンプ(20)を設けているため、こ
の給油ポンプ(20)を設けたことによる圧縮機全体の
大型化をなくシ、圧縮機全体をコンパクト化できるので
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 (11) and the suction path (62),
As the drive shaft (7) rotates, the positional relationship between the eccentric groove (21a) and the vane (22) changes, and the suction chamber (2) changes.
The oil of 3a) is discharged into the discharge chamber (23b>), and from this discharge chamber (23b) passes through the discharge passage (63) to the oil supply passage (
71). The first and second passages (
71a) (7l b), from the first passage (71a) to the first bearing (9) part, and from the second passage (71a) to the first bearing (9) part.
7l b) can supply oil to the second Nl receiver (10) and mechanical seal (30) all. In this way, oil can be distributed between the first and second passages (71a) (7lb) and supplied to the first bearing (9) side and the second bearing (10) side. Also, each lubricating point, the first and second bearings (9) and (10), and the mechanical seal (30) can all be quickly supplied with oil. In addition, the drive shaft (7) is supported on both sides via the first and second bearings (9) and (10), and a refueling pump ( 20), it is possible to eliminate the need for the entire compressor to become larger due to the provision of the oil supply pump (20), and to make the entire compressor more compact.

(発明の効果) 以上のごとく本発明は、横型ケーシング(1)に内装さ
れる架橋(5)の圧縮要素(A)近くに第1軸受(9)
を、また、ケーシング(1)の開放側近くに第2軸受(
10)を設けて、これら各軸受(9)(10)により、
前記駆動軸(7)を両持ち支持すると共に、これら第1
及び第2軸受(9)(10)の間に、底部油溜め(1a
)から油を汲上げる給油ポンプ(20)を介装したから
、前記駆動軸(7)の軸挟みは最小にできるのであり、
従って、前記各軸受(9)(10)の耐久性を増大でき
るし、また、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第1軸受(9)側と前記第
2軸受(10)側とに振り分ける第1及び第2通路(7
1a)  (71b)をもつ給油通路(71)を設けの
であるから、圧縮機の起動初期においても、前記各軸受
(9)(10)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、前記給油ポンプ(2
0)は、前記軸受(9)(10)を介して両持ち支持し
た駆動軸(7)における中間部周りのデッドスペース箇
所に設けたのであるから、給油ポンプ(20)を設けた
割に圧縮機全体をコンパクト化できるのである。
(Effects of the Invention) As described above, the present invention provides the first bearing (9) near the compression element (A) of the bridge (5) installed in the horizontal casing (1).
Also, a second bearing (
10), and with these bearings (9) and (10),
The drive shaft (7) is supported on both sides, and these first
and the bottom oil sump (1a) between the second bearings (9) and (10).
), the shaft pinching of the drive shaft (7) can be minimized.
Therefore, the durability of each of the bearings (9) and (10) can be increased, and the pump (
first and second passages (7) that distribute the oil pumped up from the first bearing (9) and the second bearing (10);
1a) Since the oil supply passage (71) with (71b) is provided, a predetermined amount of oil can be quickly and reliably supplied to the lubrication points such as the bearings (9) and (10) even in the early stages of starting up the compressor. In addition, the oil supply pump (2)
0) is installed in the dead space around the middle part of the drive shaft (7) which is supported on both sides via the bearings (9) and (10), so the compression ratio is low even though the oil supply pump (20) is installed. This allows the entire machine to be made more compact.

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

第1図は本発明圧縮機の一部切欠断面図、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 (1a)・・・・底部油溜め (A)・・・・圧縮要素 (7)・・・・駆動軸 (71)・・・・給油通路 (71a)・・・・第1通路 (7l b)・・・・第2通路 (9)・・・・第1軸受 (10)・・・・第2軸受 (20)・・・・給油ポンプ
FIG. 1 is a partially cutaway sectional view of the compressor of the present invention, FIGS. 2 and 3 are sectional views of only the oil supply pump portion, and FIG. 4 is an explanatory view of a conventional example. (1)...Casing (1a)...Bottom oil reservoir (A)...Compression element (7)...Drive shaft (71)...Oil supply passage (71a)... ...First passage (7l b)...Second passage (9)...First bearing (10)...Second bearing (20)...Oil pump

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で
あって、ケーシング(1)に内装される架構(5)の前
記圧縮要素(A)近くに第1軸受(9)を設け、かつ、
前記ケーシング(1)の開放側近くに第2軸受(10)
を設けて、これら各軸受(9)(10)により前記駆動
軸(7)を両持ち支持すると共に、前記駆動軸(7)に
おける前記第1及び第2軸受(9)(10)の間に、底
部油溜め(1a)から油を汲上げる給油ポンプ(20)
を介装する一方、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第1軸受(9)側と前
記第2軸受(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)を設けた
ことを特徴とする横型開放圧縮機。
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 horizontal open compressor driven by an external drive source, wherein a first bearing (9) is provided near the compression element (A) of a frame (5) installed in a casing (1), and
A second bearing (10) near the open side of the casing (1)
are provided, and the drive shaft (7) is supported on both sides by these bearings (9) and (10), and between the first and second bearings (9) and (10) on the drive shaft (7). , an oil supply pump (20) that pumps oil from the bottom oil sump (1a)
while distributing the oil pumped up from the pump (20) to the first bearing (9) side and the second bearing (10) side within the shaft of the drive shaft (7). A horizontal open compressor characterized by being provided with an oil supply passage (71) having a second passage (71a) and a second passage (71b).
JP19377788A 1988-08-03 1988-08-03 Horizontal open compressor Pending JPH0245686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19377788A JPH0245686A (en) 1988-08-03 1988-08-03 Horizontal open compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19377788A JPH0245686A (en) 1988-08-03 1988-08-03 Horizontal open compressor

Publications (1)

Publication Number Publication Date
JPH0245686A true JPH0245686A (en) 1990-02-15

Family

ID=16313632

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19377788A Pending JPH0245686A (en) 1988-08-03 1988-08-03 Horizontal open compressor

Country Status (1)

Country Link
JP (1) JPH0245686A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0422784A (en) * 1990-05-17 1992-01-27 Daikin Ind Ltd Horizontal open type compressor
JPH0422785A (en) * 1990-05-17 1992-01-27 Daikin Ind Ltd Horizontal open type compressor
JPH0422788A (en) * 1990-05-17 1992-01-27 Daikin Ind Ltd Horizontal open type compressor
JPH04128586A (en) * 1990-09-18 1992-04-30 Daikin Ind Ltd Oil feed system for compressor
JPH04128585A (en) * 1990-09-18 1992-04-30 Daikin Ind Ltd Oil feed system for compressor
US5330335A (en) * 1991-07-31 1994-07-19 Sanden Corporation Horizontally oriented rotary machine having internal lubication oil pump
KR100608126B1 (en) * 2004-08-03 2006-08-08 삼성전자주식회사 Rotary compressor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5014012B1 (en) * 1970-10-21 1975-05-24
JPS63131887A (en) * 1986-11-20 1988-06-03 Tokico Ltd Lubricating type scroll compressor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5014012B1 (en) * 1970-10-21 1975-05-24
JPS63131887A (en) * 1986-11-20 1988-06-03 Tokico Ltd Lubricating type scroll compressor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0422784A (en) * 1990-05-17 1992-01-27 Daikin Ind Ltd Horizontal open type compressor
JPH0422785A (en) * 1990-05-17 1992-01-27 Daikin Ind Ltd Horizontal open type compressor
JPH0422788A (en) * 1990-05-17 1992-01-27 Daikin Ind Ltd Horizontal open type compressor
JPH04128586A (en) * 1990-09-18 1992-04-30 Daikin Ind Ltd Oil feed system for compressor
JPH04128585A (en) * 1990-09-18 1992-04-30 Daikin Ind Ltd Oil feed system for compressor
US5330335A (en) * 1991-07-31 1994-07-19 Sanden Corporation Horizontally oriented rotary machine having internal lubication oil pump
KR100608126B1 (en) * 2004-08-03 2006-08-08 삼성전자주식회사 Rotary compressor

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