EP0475545B1 - Equipement pour fluides du type à spirales et son procédé d'assemblage - Google Patents

Equipement pour fluides du type à spirales et son procédé d'assemblage Download PDF

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Publication number
EP0475545B1
EP0475545B1 EP91250214A EP91250214A EP0475545B1 EP 0475545 B1 EP0475545 B1 EP 0475545B1 EP 91250214 A EP91250214 A EP 91250214A EP 91250214 A EP91250214 A EP 91250214A EP 0475545 B1 EP0475545 B1 EP 0475545B1
Authority
EP
European Patent Office
Prior art keywords
scroll
front case
cup
positioning
shaped casing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91250214A
Other languages
German (de)
English (en)
Other versions
EP0475545A1 (fr
Inventor
Yoshiyasu C/O Mitsubishi Jukogyo K.K. Ito
Hideki C/O Mitsubishi Jukogyo K.K. Yamahira
Takahisa C/O Nagoya Mitsubishi Hirano
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy 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
Priority claimed from JP9261590U external-priority patent/JPH0723522Y2/ja
Priority claimed from JP23404790A external-priority patent/JP2680728B2/ja
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP0475545A1 publication Critical patent/EP0475545A1/fr
Application granted granted Critical
Publication of EP0475545B1 publication Critical patent/EP0475545B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/02—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F01C1/0207—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F01C1/0215—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/102—Adjustment of the interstices between moving and fixed parts of the machine by means other than fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/60—Assembly methods

Definitions

  • the present invention relates to a scroll type fluid machinery used as a compressor, an expansion machine and the like and an assembling method of the same.
  • This assembling method is executed as follows.
  • a stationary scroll and a revolving scroll having spiral wraps set up on inner surfaces of end plates, respectively, are engaged with each other a a predetermined angle dislocation and housed in a housing with one end opening in the front of a cup shaped casing blocked with a front case, said stationary scroll being fixed to the bottom side of said casing, and said revolving scroll in operation is made to revolve in a solar motion by means of a revolution drive mechanism while checking the rotation on its axis by means of a mechanism for checking rotation on its axis, that by positioning portions which are provided at the inner surface of said end plate of said stationary scroll an at the end surface of the open end side of said cup shaped casing respectively, said stationary scroll and cup shaped casing are positioned at the required relative angle through a positioning jig when the jig is engaging said positioning portions of said stationary scroll and said casing, the former is fastened and fixed to the latter by means of a fastening means from outside the latter, and then said positioning ji
  • Fig. 1 and Fig. 5 show an embodiment of the present invention.
  • Fig. 5 shows a longitudinal section of a scroll type fluid machinery.
  • a housing 1 consists of a cup-shaped casing 2, a front case 4 which blocks one end opening thereof and is fastened thereto with a bolt 3, and a front cover 6 fastened to the front case with a bolt 5.
  • a rotary shaft 7 which penetrates through the front cover 6 is supported rotatably by the housing 1 through bearings 8 and 9.
  • a stationary scroll 10 and a revolving scroll 14 are disposed inside the housing 1.
  • the stationary scroll 10 is provided with an end plate 11 and a spiral wrap 12 which is set up on the inner surface thereof.
  • the outer circumferential surface of the end plate 11 is attached closely to the inner circumferential surface of the cup-shaped casing 2 through a seal ring 35, thereby to partition the inside of the housing 1.
  • a discharge cavity 31 is delimited on the outer surface side of the end plate 11, and a suction chamber 32 is delimited on the inner surface side.
  • bolts 13 are inserted through a plurality of bolt holes 33 which are bored on a bottom 2a of the cup-shaped casing 2, respectively.
  • the stationary scroll 10 is fixed to the cup-shaped casing 2 by screwing tips of these bolts 13 into screw holes 34 bored in the end plate 11 and fastening the tips thereto.
  • the revolving scroll 14 is provided with an end plate 15 and a spiral wrap 16 which is set up on the inner surface thereof, and the spiral wrap 16 has substantially the same configuration as that of the spiral wrap 12.
  • the revolving scroll 14 and the stationary scroll 10 are made eccentric with each other by a predetermined distance, and are engaged with each other while shifting the angle by 180° as shown in the figure.
  • Chip seals 17 buried on a tip surface of the spiral wrap 12 come in close contact with the inner surface of the end plate
  • tip seals 18 buried on a tip surface of the spiral wrap 16 come in close contact with the inner surface of the end plate 11, and side surfaces of the spiral wraps 12 and 16 come in linear contact with each other at a plurality of locations.
  • a plurality of closed small chambers 19a and 19b which form almost point symmetry with respect to the center of the spiral are delimited.
  • a bushing 21 is inserted rotatably through a slewing bearing 23, and an eccentric pin 25 projected at an inner end of the rotary shaft 7 is fitted rotatably in an eccentric hole 24 bored in the bushing 21. Further, a balance weight 27 is fixed to the bushing 21.
  • a thrust member 36 and a mechanism 26 for checking rotation on its axis such as an Oldham's link are interposed between the outer circumferential edge of the outer surface of the end plate 15 and the end surface of the front case 4.
  • the revolving scroll 14 is driven through a revolution drive mechanism consisting of the eccentric pin 25, the bushing 21, the slewing bearing 23, the boss 20 and the like, and the revolving scroll 14 revolves in a solar motion while being prevented from rotation on its axis by the mechanism 26 for checking rotation on its axis.
  • the linear contact portion between spiral wraps 12 and 16 moves gradually toward the center of the spiral by revolution in a solar motion of the revolving scroll 14.
  • the closed small chambers 19a and 19b move toward the center of the spiral while reducing the volume thereof.
  • gas is suctioned into a suction chamber 32 through a suction port not shown and is taken into the closed small chambers 19a and 19b through outer end opening portions of the spiral wraps 12 and 16, and reaches a central chamber 22 while being compressed.
  • the gas passes therefrom through a discharge port 29 bored in the end plate 11 of the stationary scroll 10, pushes a discharge valve 30 open and is discharged into a discharge cavity 31, and is discharged further to the outside of the housing 1 through a discharge port not shown.
  • At least one positioning hole 52 which stretches axially is bored on the outer circumferential edge on the inner surface of the end plate 11 of the stationary scroll 10, and at least one positioning hole 53 which stretches axially is bored on a flange 2b on the opening end side of the cup-shaped casing 2.
  • the stationary scroll 10 is fitted into the cup-shaped casing 2, then a pin 60 provided on a jig 51 is inserted into the positioning hole 52 while inserting the tip of the positioning jig 51 into the cup-shaped casing 2, and a pin 61 is inserted into a positioning hole 53 at the same time.
  • the cup-shaped casing 2 and the stationary scroll 10 are positioned at a regular relative angle through the jig 51.
  • cup-shaped casing 2 and the stationary scroll 10 are fixed to each other by having a plurality of bolts 13 penetrate through bolt holes 33 and screwing the tips thereof into screw holes 34.
  • the revolving scroll 14 and the front case 4 are assembled at a regular relative angle by incorporating the front cover 6, the revolving scroll 14, revolution drive mechanisms 7, 8, 9, 21, 23 and 24, the mechanism 26 for checking rotation on its axis, the thrust member 36 and the like into the front case 4.
  • a positioning hole 65 provided on an end surface of a flange 4a of the front case 4 is made to match with the positioning hole 53 of the cup-shaped casing 2, and the front case 4 and the cup-shaped casing 2 are fixed with a bolt 3 after adjusting these holes at a regular relative angle.
  • the stationary scroll 10 is fixed to the cup-shaped casing 2 at a regular relative angle, and the revolving scroll 14 is incorporated in the front case 4 at a regular relative angle. Therefore, the stationary scroll 10 and the revolving scroll 14 are engaged with each other at a predetermined angle dislocation of 180° by fixing the cup-shaped casing 2 and the front case 4 at a regular relative angle.
  • positioning is made by inserting a pin 60 of the jig 51 into the positioning hole 52, but, as shown in Figs. 2 and 3, it is also possible to position the stationary scroll 10 and the positioning jig 51 at a regular relative angle by boring a positioning slit 54 extending radially on an outer circumferential edge of the inner surface of the end plate 11 of the stationary scroll 10 and fitting the pin 60 of the jig 51 to the positioning slit 54.
  • the positioning hole 52 can be provided on the tip surface of the spiral wrap 12 of the stationary scroll 10, and a slit, a projected bar and the like may also be provided on the inner circumferential surface of the cup-shaped casing 2 in place of the positioning hole 53.
  • mechanism 26 for checking rotation on its axis consisting of an Oldham's link is provided in above-mentioned embodiment, but a mechanism for checking rotation on its axis having other type and structure may also be used.
  • positioning portions are provided on the stationary scroll and the cup-shaped casing, respectively, and these positioning portions are engaged with the positioning jig, thereby to fix the stationary scroll and the cup-shaped casing with each other after positioning the stationary scroll with respect to the cup-shaped casing. Accordingly, it is possible to assemble a scroll type fluid machinery easily and quickly in a state that the stationary scroll and the revolving scroll are engaged with each other at a predetermined relative angle.
  • Fig. 6 shows another embodiment of the present invention.
  • same symbols are assigned to those members that are the same as Fig. 5, and description thereof will be omitted.
  • a leg 40 protruding outwardly is formed on the outside surface of the end plate 11 of the stationary scroll 10, and a tip surface 41 of the leg 40 abuts against a tip surface 43 of a leg 42 protruding inwardly from the bottom 2a of the cup-shaped casing 2.
  • a positioning hole 44 having a predetermined depth is bored on the tip surface 41, and a positioning hole 45 having a predetermined depth which opposes to the positioning hole 44 is bored on the tip surface 43 when the stationary scroll 10 and the cup-shaped casing 2 occupy a regular relative angle position, and a pin 37 is inserted into these positioning holes 44 and 45 extending thereover.
  • the revolving scroll 14, revolution drive mechanisms 7, 8, 9, 21, 23, 24 and 25 thereof, the mechanism 26 for checking rotation on its axis thereof, the thrust member 36 and the like are assembled in the front case 4 and the front cover 6. With this, the revolving scroll 14 and the front case 4 are assembled at a regular relative angle.
  • the stationary scroll 10 is placed in the cup-shaped casing 2 and rotated appropriately, thereby to insert the rear end of the pin 37 into the positioning hole 45 and to make the tip surface 41 abut against the tip surface 43 at the same time.
  • cup-shaped casing 2 and the stationary scroll 10 are fastened to each other using a bolt 13. With this, the cup-shaped casing 2 and the stationary scroll 10 are assembled at a regular relative angle.
  • the preassembled revolving scroll 14 is engaged with the stationary scroll 10, and the front case 4 and the cup-shaped casing 2 are fastened with the bolt 3 at a regular relative angle thereafter.
  • pin 37 is used in the illustrated embodiment, but a plurality of pins may be used, too.
  • a leg is formed on an outer surface of an end plate of the stationary scroll, positioning holes are provided on the leg and at the bottom of the cup-shaped casing, respectively, and a pin is inserted into these positioning holes so as to position a relative angle between the stationary scroll and the cup-shaped casing in the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Rotary Pumps (AREA)

Claims (1)

  1. Procédé pour assembler un mécanisme à fluide du type à spirale, dans lequel une spirale fixe (10) et une spirale rotative (14) présentant des enroulements (12,16) agencés sur les faces internes de plaques d'extrémité (11,15), respectivement, sont engagées l'une avec l'autre à une position angulaire prédéterminée et sont montées dans un boîtier (1) avec une extrémité ouverte en regard d'un carter (2) en forme de godet fermé par un coffret avant (4), ladite spirale fixe étant fixée sur la face de fond dudit carter, et ladite spirale rotative en fonctionnement est réalisée pour tourner suivant un mouvement solaire au moyen d'un mécanisme d'entraînement en rotation (7,8,9,21,23,24) tout en vérifiant la rotation sur son axe au moyen d'un mécanisme (26) pour vérifier la rotation sur son axe, que, par des parties de positionnement (52,53) qui sont prévues sur la surface interne de ladite plaque d'extrémité de ladite spirale fixe et sur la surface d'extrémité de la face d'extrémité ouverte dudit carter en forme de godet respectivement, ladite spirale fixe et ledit carter en forme de godet sont positionnés à l'angle relatif exigé par un calibre de positionnement (51) lorsque le calibre est engagé dans lesdites parties de positionnement (52,53) de ladite spirale fixe et dudit carter, la première est attachée et fixée au dernier au moyen de moyens d'attache (13) de l'extérieur du dernier, et alors ledit calibre de positionnement (51) est retiré ; ensuite, un couvercle avant (6), ladite spirale rotative, lesdits mécanismes d'entraînement en rotation et ledit mécanisme de vérification de rotation sont incorporés dans ledit coffret avant de sorte que ladite spirale rotative et ledit coffret avant sont assemblés à l'angle relatif exigé ; et que, par une partie de positionnement (65) qui est prévue sur une bride (4a) dudit coffret avant, ledit coffret avant est ajusté à ladite partie de positionnement (53) dudit carter en forme de godet de sorte qu'ils sont ajustés pour adopter l'angle relatif exigé entre eux ; et alors ledit coffret avant est fixé audit carter en forme de godet au moyen de moyens d'attache (3).
EP91250214A 1990-09-03 1991-07-30 Equipement pour fluides du type à spirales et son procédé d'assemblage Expired - Lifetime EP0475545B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP92615/90U 1990-09-03
JP9261590U JPH0723522Y2 (ja) 1990-09-03 1990-09-03 スクロール型流体機械
JP234047/90 1990-09-04
JP23404790A JP2680728B2 (ja) 1990-09-04 1990-09-04 スクロール型流体機械及びその組立方法

Publications (2)

Publication Number Publication Date
EP0475545A1 EP0475545A1 (fr) 1992-03-18
EP0475545B1 true EP0475545B1 (fr) 1994-11-23

Family

ID=26434011

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91250214A Expired - Lifetime EP0475545B1 (fr) 1990-09-03 1991-07-30 Equipement pour fluides du type à spirales et son procédé d'assemblage

Country Status (6)

Country Link
EP (1) EP0475545B1 (fr)
KR (1) KR950013020B1 (fr)
CN (1) CN1024941C (fr)
AU (1) AU647794B2 (fr)
CA (1) CA2043569C (fr)
DE (1) DE69105252T2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5286180A (en) * 1992-05-11 1994-02-15 Ford Motor Company Method for attaching fixed scroll to rear head of scroll compressor
JPH10205463A (ja) * 1997-01-24 1998-08-04 Mitsubishi Heavy Ind Ltd スクロール型流体機械
JPH1122658A (ja) * 1997-07-04 1999-01-26 Sanden Corp スクロール型圧縮機
US5984653A (en) * 1997-07-07 1999-11-16 Tecumseh Products Company Mechanism and method for aligning a fixed scroll in a scroll compressor
JPH1130187A (ja) * 1997-07-10 1999-02-02 Mitsubishi Heavy Ind Ltd スクロール型流体機械
JP2000110743A (ja) * 1998-10-01 2000-04-18 Sanden Corp スクロール型流体機械
JP4837331B2 (ja) * 2005-08-11 2011-12-14 三菱電機株式会社 スクロール流体機械の位置決め方法およびその装置、並びにスクロール流体機械の組み立て方法およびその装置
US11767838B2 (en) 2019-06-14 2023-09-26 Copeland Lp Compressor having suction fitting
CN112643573A (zh) * 2020-12-08 2021-04-13 湖南贝特新能源科技有限公司 一种用于测量涡旋盘型线的夹具
US11619228B2 (en) * 2021-01-27 2023-04-04 Emerson Climate Technologies, Inc. Compressor having directed suction

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4065279A (en) * 1976-09-13 1977-12-27 Arthur D. Little, Inc. Scroll-type apparatus with hydrodynamic thrust bearing
JPS6126638Y2 (fr) * 1980-12-27 1986-08-09
JPS58170882A (ja) * 1982-03-31 1983-10-07 Toshiba Corp スクロ−ル・コンプレツサ
JPS59224490A (ja) * 1983-06-03 1984-12-17 Sanden Corp スクロ−ル型流体装置
JPS61135995A (ja) * 1984-12-05 1986-06-23 Hitachi Ltd 固定スクロールの位置決め組付け方法および位置決め組付け装置

Also Published As

Publication number Publication date
CA2043569A1 (fr) 1992-03-04
CN1024941C (zh) 1994-06-08
KR950013020B1 (ko) 1995-10-24
DE69105252T2 (de) 1995-03-30
AU7822091A (en) 1992-03-05
CN1059585A (zh) 1992-03-18
CA2043569C (fr) 1995-05-09
KR920006649A (ko) 1992-04-27
EP0475545A1 (fr) 1992-03-18
DE69105252D1 (de) 1995-01-05
AU647794B2 (en) 1994-03-31

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