AU647794B2 - Scroll type fluid machinery and assembling method of the same - Google Patents
Scroll type fluid machinery and assembling method of the same Download PDFInfo
- Publication number
- AU647794B2 AU647794B2 AU78220/91A AU7822091A AU647794B2 AU 647794 B2 AU647794 B2 AU 647794B2 AU 78220/91 A AU78220/91 A AU 78220/91A AU 7822091 A AU7822091 A AU 7822091A AU 647794 B2 AU647794 B2 AU 647794B2
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- AU
- Australia
- Prior art keywords
- cup
- scroll
- shaped casing
- casing
- stationary scroll
- 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.)
- Ceased
Links
- 239000012530 fluid Substances 0.000 title claims description 28
- 238000000034 method Methods 0.000 title claims description 22
- 230000007246 mechanism Effects 0.000 claims description 45
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
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- 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
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Rotary Pumps (AREA)
Description
II i it ii ~i i AUSTRALIA 6 44 PATENTS ACT 1990 COMPLETE SPECIFICATION FOR A STANDARD PATENT (Original) APPLICATION NUMBER:
LODGED:
COMPLETE SPECIFICATION LODGED:
ACCEPTED:
PUBLISHED:
RELATED ART: r t 0 V NAME OF APPLICANT: ACTUAL INVENTOR(S): ADDRESS FOR SERVICE: MITSUBISHI JUKOGYO KABUSHIKI
KAISHA
YOSHIYASU ITO TAKAHISA HIRANO HIDEKI YAMAHIRA KELVIN LORD AND COMPANY 4 Douro Place West Perth WA 6005 "SCROLL TYPE FLUID MACHINERY AND ASSEMBLING METHOD OF THE
SAME"
INVENTION TITLE: DETAILS OF ASSOCIATED PROVISIONAL APPLICATIONS: NOS: The following statement is a full description of this invention including the best method of performing it known to me/us:- L
SPECIFICATION
1. TITLE OF THE INVENTION SCROLL TYPE FLUID MACHINERY AND ASSEMBLING METHOD OF THE SAME 2. FIELD OF THE INVENTION AND RELATED ART STATEMENT 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.
I An assembling method of a scroll type fluid machinery of this type has been disclosed in Japanese Patent Provisional Publication No. 59-224490 (No. 224490/ I 1984).
This assembling method is executed as follows.
V A cup-shaped casing and a front case which blocks an opening at one end thereof are fastened tempoi rarily by screwing bolts in a plurality of bolt holes which are bored on the casing and the front case.
A stationary scroll and revolving scroll are engaged with each other, and positioning holes which V 20 are bored on the stationary scroll and the revolving scroll, respectively, are made to coincide with each other so as to oppose to each other at a location dislocated by approximately 90 in a reverse direction to a rotating direction of a rotary shaft from a line connecting a plurality of contact points where spiral wraps thereof are in contact with one another. Then, a positioning rod is inserted into these positioning holes from the bottom of the cup-shaped casing.
The front case is rotated in a reverse direction to the rotating direction of the rotary shaft until movement is sustained.
The cup-shaped casing and the front case are fastened completely with bolts.
S, The positioning rod is pulled out.
t *r 'l With the process described above, an engagement KK angle between the stationary scroll and the revolving scroll is set.
A conventional assembling method of a scroll type fluid machinery required much labor as described above.
In addition, it is required to bore a through hole for inserting a positioning rod therethrough at the bottom of the cup-shaped casing, and a bolt inserted through the through hole is also screwed in a part of the positioning hole bored in the stationary scroll in order to prevent gas inside a housing constructed of the cup-shaped casing and the front case leaking outside.
Furthermore, there have been such problems that numerous components, working mandays and assembling mandays are required and the cost piles up because it is required to 2 i ii 13- la seal the clearance between the bolt and the through hole with a seal ring and the like.
3. OBJECT AND SUMMARY OF THE INVENTION It is an object of the present invention which has been made in view of such circumstances to provide a scroll type fluid machinery in which above-described problems have been solved.
It is another object of the present invention to propose an assembling method of a scroll type fluid ±0 ma hinery in which above-mentioned problems have been solved similarly.
The gist of a first invention exists in a scroll type fluid machinery in which a stationary scroll and a revolving scroll having spiral wraps set up on 15 inner surfaces of end plates, respectively, are engaged with each other at a predetermined angle dislocation and housed in a housing with one end opening of a cupshaped casing blocked with a front case, the stationary scroll is fixed to the cup-shaped casing, and the revolving scroll 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, characterized in that positioning portions engaged with a positioning jig are provided on the 3 rI stationary scroll and the cup-shaped casing, respectively.
In such a scroll type fluid machinery, there is provided an assembling method characterized in that, after positioning a stationary scroll with respect to a cup-shaped casing by having a positioning portion of the stationary scroll and a positioning portion of the cup-shaped casing engaged with a positioning jig, res- 0 0pectively, the stationary scroll and the cup-shaped casing are fixed to each other.
Furthermore, in the scroll type fluid machinery, o there is also provided an assembling method characterized 000 ot. in that, after positioning a stationary scroll with respect to a cup-shaped casing by having a positioning portion of the stationary scroll and a positioning portion of "14T the cup-shaped casing engaged with a positioning jig, respectively, the stationary scroll and the cup-shaped casing are fixed to each other and then, after a positioning portion provided on a flange end surface of a front case in which a revolving scroll, a revolution drive mechanism and a mechanism for checking rotation on its axis are incorporated and the positioning portion of the cup-shaped casing are assembled with positioning, the front case .and the cup-shaped casing are fixed to each other.
Above-described construction being provided according to the present invention, it is possible to 4 r fix the stationary scroll and the cup-shaped casing to each other after positioning a stationary scroll with respect to a cup-shaped casing by having a positioning portion of the stationary scroll and a positioning portion of the cup-shaped casing engaged with a positioning jig, respectively.
The gist of a second invention exists in a 09O0o scroll type fluid machinery -i which a stationary scroll oo and a revolving scroll having spiral wraps set up on o inner surfaces of end plates, respectively, are engaged with each other at a predetermined angle dislocation o ooand housed in a housing with one end opening of a cupshaped casing blocked with a front case, the stationary scroll is fixed to the casing, and the revolving scroll ooo is made to revolve in a solar motion by means of a re- 0000 volution drive mechanism while checking the rotation r oon its axis by means of a mechanism for checking rotation aeva on its axis characterized in that a leg is formed on Sa:an outer surface of an end plate of the stationary scroll, positioning holes are provided on this leg and at the bottom of the cup-shaped casing, respectively, a pin is inserted into these positioning holes, and a relative angle between the stationary scroll and the cup-shaped casing is positioned through the pin.
In such a scroll type fluid machinery, there 5 I-T--mi i i 3aa-- is provided an assembling method characterized in that, after a pin is inserted into positioning holes provided on the leg formed on the outer surface of the end plate of the stationary scroll and at the bottom of the cup-shaped casing, respectively, and a relative angle between the statiinary scroll and the cup-shaped casing is positioned through the pin, the stationary scroll and the cup-shaped casing are fixed to each other and then, a positibning portion tit f provided on a flange end surface of a front case in which the
I
revolving scroll, a revolution drive mechanism and t a mechanism for checking rotation on its axis are incorporated and the positioning portion of the cup-shaped casing are assembled with positioning, and the front case and the cup-shaped casing are fixed to each other thereafter.
Above-described construction being provided in the present invention, the cup-shaped casing and the stationary scroll are positioned at an accurate relative angle by means of the positioning pin. Accordingly, it is possible to assemble the stationary scroll and the revolving scroll at a predetermined angle dislocation easily and quickly.
4. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a partial longitudinal sectional view 6 showing a first embodiment of an assembling method of the present invention; Fig. 2 and Fig. 3 show a second embodiment of an assembling method of the present invention, in which 2 is a partial longitudinal sectional view and Fig. 3 is a partial bottom view; Fig. 4 is a partial longitudinal sectional view showing a third embodiment of an assembling method 00o o of the present invention; 4 oo'1^ Fig. 5 is a longitudinal sectional view of o a scroll type fluid machinery according to the present 0 *1 *invention; and Fig. 6 is a longitudinal sectional view shuwing another embodiment of a scroll type fluid machinery of the present invention.
DETAILEL jESCRIPTION OF THE PREFERRED EMBODIMENTS Fig. 1 and Fig. 5 show an embodiment of the present invention.
Fig. 5 shows a longitudinal section of a scroll type fluid machinery. In Fig. 5, 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 -7 i the front cover 6 is supported rotatably by the housing K 1 through bearings 8 and 9.
A stationary scroll 10 and a revolving scroll 14 are disposed inside the housing i.
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 II 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 i. With this, 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. Then, 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. Further, U the stationary scroll 10 is fixed to the cup-shaped casino K 2 by screwing tips of these bolts 13 into screw holes i 34 bored in the end plate 11 and fastening the tips S 20 thereto.
The revolving scroll 14 is provided with an Q 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.
8 r- 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 1800 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 15, 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 1 0 spiral wraps 12 and 16 come in linear contact with each other at a plurality of locations. In such a manner, a plurality of closed small chambers 19a and 19b which form almost point symmetry with respect to the center of the spiral are delimited.
Inside a cylindrical boss 20 projected at a central portion of the outer surface of the end plate 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 lin-kj are interposed between the outer circumferential edge of the outer surface of the end plate 15 and the end surface of the -9t 9 front case 4.
Now, when the rotary shaft 7 is rotated, the revolving scroll 14 is drivenr 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 #Ot, mechanism 26 for checking rotation on its axis.
So a4eQ o The linear contact portion between spiral wraps 12 and 16 moves gradually toward the center of the spiral 9, by revolution in a solar motion of the revolving scroll 14.
S' As a result, the closed small chambers 19a and 19b move toward the center of the spiral while reducing the volume thereof.
Then, gas is suctioned into a suction chamber t 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 10
I
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.
In the next place, an assembling method of the fluid machinery will be described with reference to Fig. i.
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 cupshaped casing 2, and a pin 61 is inserted into a positioning hole 53 at the same time. Thus, the cup-shaped casing S 2 and the stationary scroll 10 are positioned at a regular r relative angle through the jig 51.
i Next, the 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.
I On the other hand, the revolving scroll 14 J 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, 11 4 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.
Thus, the stationary scroll 10 is fixed to the cup-shaped casing 2 at a regular relative angle, 1i and the revolving scroll 14 is incorporated in the front case 4 at a regular relative angle. Therefore, the stai tionary scroll 10 and the revolving scroll 14 are engaged with each other at a predetermined angle dislocation of 1800 by fixing the cup-shaped casing 2 and the front S:1' 5 case 4 at a regular relative angle.
In above-described first embodiment, 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.
Further, as shown in Fig. 4, it is possible 12 to position the relative angle between the stationary scroll 10 and the cup-shaped casing 2 by boring positioning holes 63 and 64 in the positioning jig 51, inserting a positioning pin 55 so as to extend over the positioning hole 52 provided on the end plate 11 of the stationary scroll 10 and a positioning hole 63 of the jig 51, and inserting a positioning pin 56 so as to extend over the positioning hole 53 provided on a flange 2b of the cup-shaped casing 2 and the positioning hole 64 of the jig 51.
Besides, although not shown in the figure, 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.
Further, the mechanism 26 for checking rotation on its axis consisting of an Oldham's 1-ikis provided S in above-mentioned embodiment, but a mechanism for checking rotation on its axis having other type and structure may also be used.
SAs described above, according to the present invention, positioning portions are provided on the stationary scroll and the cup-shaped casing, respectively, and these positioning portions are engaged with the 13 i. '3 1 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.
o Being different from a conventional machinery, it is not required to bore a through hole for inserting alo a positioning rod in the cup-shaped casing and bolt and seal ring for blocking the hole are not required. Thus, Qa number of parts, working mandays and assembly mandays are reduced and the cost may be cut down.
Fig. 6 shows another embodiment of the present 4" invention. In Fig. 6, same symbols are assigned to those OA members that are the same as Fig. 5, and description 0a thereof will be omitted.
Co In Fig. 6, 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 14 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 extending thereover.
Then, an assembling method of the fluid machinery 000oo will be described.
0 *OQ; 0 The revolving scroll 14, revolution drive mechanisms o°%I 7, 8, 9, 21, 23, 24 and 25 thereof, the mechanism 26 for 0 oq 0o checking rotation on its axis thereof, the thrust member 00 o01 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 0'f angle.
S o0 0 0* Next, after inserting the tip of the pin 37 *0 into the positioning hole 44 of the stationary scroll ro0 and exposing the rear end thereof, the stationary scroll 10 is placed in the cup-shaped casing 2 and QJO J 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.
Thereafter, the cup-shaped casing 2 and the stationary scroll 10 are fastened to each other using 15 a bolt 13. With this, the cup-shaped casing 2 and the stationary scroll 10 are assembled at a regular relative angle.
Then, 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.
One piece of pin 37 is used in the illustrated embodiment, but a plurality of pins may be used, too.
Further, a case in which an Oldham's-l-i- is used as the mechanism 26 for checking rotation on its axis has been described, but other mechanism for checking rotation on its axis may also be used.
As described above, 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. Thus, it is possible to assemble a scroll type fluid machinery easily and quickly so that the stationary scroll and the revolving scroll show a predetermined angle dislocation.
Further, being different from a conventional machinery, it is not required to bore a through hole for inserting 16 'JVr 0 0,f 6 sA :1 i a positioning rod in the cup-shaped casing, and a bolt I and a sealing ring for blocking the hole are neither I required. Thus, number of parts, working mandays and ,j assembly mandays are reduced and the cost may be cut down.
o a o *I 0 V, t 17
Claims (4)
1. A scroll type fluid machinery comprising: a housing having a cup-shaped casing with an opening at one end thereof, the housing further having a front casing, the front casing closing the opening and the cup-shaped casing having a flange and at least one bolt hole formed in an, end of the cup-shaped casing remote from the opening; a stationary scroll and a revolving scroll each having spiral wraps set up at inner surfaces of end plates thereof, the scrolls being arranged in the housing in engagement with each other at a desired predetermined relative angular position, said stationary scroll being fixed to said cup-shaped casing; a revolution drive mechanism for moving said revolving scroll in a solar motion and a mechanism consisting of an Oldham's ring for checking rotation of the revolving scroll, the revolution drive mechanism and the mechanism for checking rotation being located in the housing; the inner surface of the end plate of the stationary scroll at a circumferential edge thereof having at least one opening defined therein and the flange of the cup-shaped casing having an opening alone defined therein, the opening alone defined in the flange being on a side facing the opening of the cup-shaped casing, both of the at least one opening and the opening alone allowing uhe stationary scroll and the cup-shaped casing to assume a predetermined relative angular position therebetween, the predetermined relative angular position between the stationary scroll and the cup-shaped casing being determined by means of a positioning '4> .4 4 .g Cr 7'(j
4.? I 1 2 3 4 6 7 8 9 11 12 00 13 14 15 16 17 18 19 21 22 23 24 26 27 28 29 i 19 jig provided with positioning pins, at least one of the pins engaging the at least one opening defined in the stationary scroll and one of the pins engaging the opening alone defined in the flange, the stationary scroll having at least one bolt hole, the bolt holes of the stationary scroll and the cup-shaped casing being aligned when both of the at least one opening and the opening alone are engaged by the pins of the positioning jig; a bolt positionable in each of the bolt holes of the stationary scroll and the cup-shaped casing for holding the statibnary scroll fixed to the cup-shaped casing; the revolving scroll, the revolution drive mechanism and the mechanism for checking rotation being mutually fixed to the front casing such that a positioning hole defined in the front casing and the revolving scroll are assembled at a predetermined relative angular position; and the positioning hole defined in the front casing matching the position of the opening alone defihed in the cup-shaped casing to thereby determine positioning of the front casing and the cup-shaped casing at a predetermined relative angular position and thereby ensure that the stationary scroll and the revolving scroll are in engagement with each other at the desired predetermined rjlative angular position. 2. A scroll type fluid machinery according to claim 1, wherein each of the at least one openings in the stationary scroll is one of a hole and slit and wherein the opening alone in the flange is one of a hole and slit. 3. A scroll type fluid machinery comprising: L. I L.I~=Cl. Cl( J 1 2 a housing having a cup-shaped casing with an opening at one 3 end thereof, the housing further having a front casing, the 4 front casing closing the opening; a stationary scroll and a revolving scroll each having 6 spiral wraps set up at inner surfaces of end plates thereof, 7 the scrolls being arranged in the housing in engagement with 8 each other at a desired predetermined relative angular 9 position, said stationary scroll being fixed to the cup-shaped casing; 11 a revolution drive mechanism for moving the revolving scroll 12 in a solar motion and a mechanism consisting of an Oldham's 13 ring for checking ro.ation of the revolving scroll, the Ss 14 revolution drive mechanism and the mechanism for checking 15 rotation being located in the housing; 16 at least one leg on the end plate of the stationary scroll 17 and at least one leg on a bottom of the cup-shaped casing, 18 each of the legs on the end plate having a matching leg on 19 the cup-shaped casing, each leg having an end surface with a ee. -20 positioning hole defined..therein, and end surfaces of 21 matching legs contacting each other; 22 a pin insertable in both of the positioning holes of each of 23 the matching legs for positioning the stationary scroll and 24 the cup-shaped casing at a predetermined relative angular position to thereby determine positioning between the 26 stationary scroll and the cup-shaped casing; 27 both the cup-shaped casing and the stationary scroll having 28 at least one bolt hole defined therein, the bolt holes in 29 the cup-shaped casing and the stationary scroll being 0 aligned when the pin is inserted into the positioning holes L i 1 21 2 of each of the matching legs whereby the aligned bolt holes 3 form bolt hole pairs; 4 bolts positionable in each of the bolt hole pairs to hold the stationary scroll fixed to the cup-shaped housing; 6 the revolving scroll, the revolution drive mechanism and the 7 mechanism for checking rotation being mutually fixed to the 8 front casing such that a positioning bolt hole formed in the 9 front casing and the revolving scroll are assembled at a predetermined relative angular position; 11 the cup-shaped casing having a positioning bolt hole defined 12 therein, the bolt holes in the front casing and the 13 cup-shaped casing being aligned when the front casing is to 14 be mounted on the cup-shaped casing whereby a position at a predetermined relative angular position between the front 16 casing and the cup-shaped casing can be determined; 17 wherein when the cup-shaped casing and the front casing are 18 fixed together at the predetermined relative angular 19 position, the revolving scroll and stationary scroll are in engagement at the desired predetermined relative angular 21 position. 22 4. A process for assembling a scroll type fluid machinery 23 comprising the steps of: 24 providing a housing having a cup-shaped casing with an opening at one end thereof, the housing further having a 26 front casing, the front casing closing the opening and the 27 cup-shaped casing having a flange and at least one bolt hole 28 formed in an end of the cup-shaped casing remote from the 29 opening; providing a stationary scroll and a revolving scroll each e L 1 22 2 having spiral wraps set up at inner surfaces of end plates 3 thereof, the stationary scroll having at least one bolt hole 4 defined therein; providing at least one opening on the stationary scroll and 6 an opening alone on the cup-'haped casing, an inner edge of 7 the inner surface of the end plate of the stationary scroll I 8 at a circumferential edge thereof having the at least one 9 opening defined therein and the flange of the cup-shaped casing having the opening alone defined therein, the opening i 11I alone defined in the flange being on a side facing the 12 opening of the cup-shaped casing; S13 fixing a predetermined angular relationship between the 14 stationary scroll and the cup-shaped casing by the at least one opening in the end plate of the stationary scroll and S16 the opening alone in the flange of the cup-shaped casing; 17 inserting pins formed on a positioning jig in at least one 18 of the at least one opening in the end plate of the 19 stationary scroll and in the opening alone in the flange of the cup-shaped casing during the step of fixing, the pins on 21 the positioning jig aligning the stationary scroll and the 2L cup-shaped casing, the at least one bolt hole in the 23 stationary scroll being aligned with the at least one bolt 24 hole in the cup-shaped casing; inserting a bolt into each of the aligned bolt holes of the 26 stationary scroll and the cup-shaped casing to fix the 27 stationary scroll to the cup-shaped casing; 28 providing a revolution drive mechanism for moving the 29 revolving scroll in a solar motion and a mechanism 0 consisting of an Oldham's ring for checking rotation of the L i 1 23- 2 revolving scroll; 3 providing a positioning hole in the front casing and a 4 positioning hole in the cup-shaped casing; locating the revolution drive mechanism and the mechanism 6 for checking rotation in the housing; 7 incorporating the revolution drive mechanism, the revolving 8 scroll and the mechanism for checking rotation mutually 9 fixedly in the front casing such that a predetermined relative angular position is formed between the positioning 11 hole in the front casing the revolving scroll; 12 aligning the positioning holes in the front casing and the 13 cup-shaped casing; and 14 fixing the front casing to the cup-shaped casing using said positioning holes with a predetermined relative angular 16 position being formed therebetween thereby ensuring the 17 engagement of the stationary scroll and the revolving scroll 18 at a desired predetermined relative angular position. 19 5. A process for assembling a scroll type fluid machinery comprising the steps of: 21 providing a housing having a cup-shaped casing with an 22 opening at one end thereof, the housing further having a 23 front casing, the front casing closing the opening, the 24) cup-shaped casing having a bolt hole defined therein; providing a stationary scroll and a revolving scroll each 26 having wraps set up at inner surfaces of end plates thereof, 27 the stationary scroll havig a bolt hole defined therein; 28 providing at least one leg on the end plate of the 29 stationary scroll and at least one leg on a bottom of the I u 3 cup-shaped casing, each of the least one legs on the end r.c.l...ri .I r; r -'1 ~I 1 2 3 4 6 7 8 9 11 12 13 14 16 17 18 19 21 22 23 24 26 27 28 29 24 plate having a matching leg on the cup-shaped casing, each leg having an end surface with a positioning hole defined therein; touching the end surface of each of the at least one legs on the end plate with the end surface of a matching leg on the cup-shaped casing; inserting a pin in each of the positioning holes of the matching legs when the end surfaces of the matching legs are touching, the pin fixing the predetermined relative angular position between the stationary scroll and the cup-shaped casing to thereby determine position between the stationary scroll and the cup-shaped casing, the bolt holes in the stationary scroll and the cup-shaped casing being aligned; inserting a bolt into each of the aligned bolt holes of the stationary scroll and the cup-shaped caiing to fix the staticnary scroll and the cup-shaped casing; providing a revolution drive mechanism for moving said revolving scroll in a solar motion and the mechanism consisting of an Oldham's.ring for checking rotation of the revolving scroll; providing a positioning bolt hole in the front casing and in the cup-shaped casing; locating the revolution drive mechanism and the mechanism for checking rotation in the housing; incorporating the revolution drive mechanism, the revolving scroll and the mechanism for checking rotation mutually fixedly in the front casing such that a predetermined relative angular position is formed between the positioning bolt hole in the front casing and the revolving scroll; n. I- II~ 1 2 3 4 6 7 8 9 11 12 a a 13 o n S 14 a 15 16 17 25 aligning the bolt holes in the front casing and the cup-shaped casing; and fixing the front casing to the cup-shaped casing using the positioning bolt holes to thereby determine the predetermined relative angular position between the front casing and the cup-shaped casing thereby ensuring the engagement of the stationary scroll and the revolving scroll at a predetermined relative angular position.
6. A scroll type fluid machinery substantially as hereinbefore described with reference to Figure 1 or Figures 2 and 3 or Figure 4 or Figure 5 or Figure 6 of the accompanying drawings.
7. A method of assembling a scroll type fluid machinery substantially as hereinbefore described with reference to Figure 1 or Figures 2 and 3 or Figure 4 or Figure 5 or Figure 6 of the accompanying drawings. 'DATED JANUARY 20 1994 MITSUBISHI JUKOGYO KABUSHIKI KAISHA By their Patent Attorneys KELVIN LORD AND COMPANY PERTH, WESTERN AUSTRALIA n xh ~~II i"b'. i. ~Y~ [7 7. ABSTRACT The present invention relates to a scroll type fluid machinery in which a stationary scroll and a revolv- ing scroll having spiral wraps set up on inner surfaces of end plates, respectively, are engaged with each other at a predetermined angle dislocation and housed in a housing with one end opening of a cup-shaped casing blocked with a front case, the stationary scroll is fixed to the cup-shaped casing, and the revolving scroll 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, and an assembling method thereof, in which positioning portions which are engaged with a positioning jig are provided in the stationary scroll and the cup-shaped j casing, respectively, and the positioning portions are utilized. With this, number of parts, working mandays and assembly mandays are reduced and the manufacturing cost may be cut down.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9261590U JPH0723522Y2 (en) | 1990-09-03 | 1990-09-03 | Scroll type fluid machinery |
| JP2-92615U | 1990-09-03 | ||
| JP23404790A JP2680728B2 (en) | 1990-09-04 | 1990-09-04 | Scroll type fluid machine and assembly method thereof |
| JP2-234047 | 1990-09-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU7822091A AU7822091A (en) | 1992-03-05 |
| AU647794B2 true AU647794B2 (en) | 1994-03-31 |
Family
ID=26434011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU78220/91A Ceased AU647794B2 (en) | 1990-09-03 | 1991-06-06 | Scroll type fluid machinery and assembling method of the same |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0475545B1 (en) |
| KR (1) | KR950013020B1 (en) |
| CN (1) | CN1024941C (en) |
| AU (1) | AU647794B2 (en) |
| CA (1) | CA2043569C (en) |
| DE (1) | DE69105252T2 (en) |
Families Citing this family (11)
| 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 (en) * | 1997-01-24 | 1998-08-04 | Mitsubishi Heavy Ind Ltd | Scroll type fluid machine |
| JPH1122658A (en) * | 1997-07-04 | 1999-01-26 | Sanden Corp | Scroll compressor |
| US5984653A (en) * | 1997-07-07 | 1999-11-16 | Tecumseh Products Company | Mechanism and method for aligning a fixed scroll in a scroll compressor |
| JPH1130187A (en) * | 1997-07-10 | 1999-02-02 | Mitsubishi Heavy Ind Ltd | Scroll type fluid machinery |
| JP2000110743A (en) * | 1998-10-01 | 2000-04-18 | Sanden Corp | Scroll-type fluid machine |
| JP4837331B2 (en) * | 2005-08-11 | 2011-12-14 | 三菱電機株式会社 | Scroll fluid machine positioning method and apparatus, and scroll fluid machine assembly method and apparatus |
| US11767838B2 (en) | 2019-06-14 | 2023-09-26 | Copeland Lp | Compressor having suction fitting |
| CN112643573A (en) * | 2020-12-08 | 2021-04-13 | 湖南贝特新能源科技有限公司 | Clamp for measuring molded line of scroll plate |
| US11619228B2 (en) * | 2021-01-27 | 2023-04-04 | Emerson Climate Technologies, Inc. | Compressor having directed suction |
| US12180966B2 (en) | 2022-12-22 | 2024-12-31 | Copeland Lp | Compressor with funnel assembly |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58170882A (en) * | 1982-03-31 | 1983-10-07 | Toshiba Corp | Scroll compressor |
| JPS59224490A (en) * | 1983-06-03 | 1984-12-17 | Sanden Corp | Scroll type hydraulic device |
Family Cites Families (3)
| 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 (en) * | 1980-12-27 | 1986-08-09 | ||
| JPS61135995A (en) * | 1984-12-05 | 1986-06-23 | Hitachi Ltd | Fixed scroll positioning assembly method and positioning assembly device |
-
1991
- 1991-05-30 CA CA002043569A patent/CA2043569C/en not_active Expired - Fee Related
- 1991-06-06 AU AU78220/91A patent/AU647794B2/en not_active Ceased
- 1991-06-21 CN CN91104203A patent/CN1024941C/en not_active Expired - Fee Related
- 1991-07-30 DE DE69105252T patent/DE69105252T2/en not_active Expired - Fee Related
- 1991-07-30 EP EP91250214A patent/EP0475545B1/en not_active Expired - Lifetime
- 1991-09-03 KR KR1019910015324A patent/KR950013020B1/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58170882A (en) * | 1982-03-31 | 1983-10-07 | Toshiba Corp | Scroll compressor |
| JPS59224490A (en) * | 1983-06-03 | 1984-12-17 | Sanden Corp | Scroll type hydraulic device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR950013020B1 (en) | 1995-10-24 |
| EP0475545B1 (en) | 1994-11-23 |
| CA2043569C (en) | 1995-05-09 |
| CN1059585A (en) | 1992-03-18 |
| AU7822091A (en) | 1992-03-05 |
| DE69105252D1 (en) | 1995-01-05 |
| DE69105252T2 (en) | 1995-03-30 |
| KR920006649A (en) | 1992-04-27 |
| CA2043569A1 (en) | 1992-03-04 |
| CN1024941C (en) | 1994-06-08 |
| EP0475545A1 (en) | 1992-03-18 |
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