CN1059017A - Scroll-type fluid machinery - Google Patents

Scroll-type fluid machinery Download PDF

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Publication number
CN1059017A
CN1059017A CN91103678A CN91103678A CN1059017A CN 1059017 A CN1059017 A CN 1059017A CN 91103678 A CN91103678 A CN 91103678A CN 91103678 A CN91103678 A CN 91103678A CN 1059017 A CN1059017 A CN 1059017A
Authority
CN
China
Prior art keywords
low
pressure cavity
end plate
casing
volute body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN91103678A
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Chinese (zh)
Other versions
CN1021590C (en
Inventor
鹿内敏幸
饭尾孝征
平野隆久
森田好治
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
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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.)
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Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of CN1059017A publication Critical patent/CN1059017A/en
Application granted granted Critical
Publication of CN1021590C publication Critical patent/CN1021590C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • F04C18/0207—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 both members having co-operating elements in spiral form
    • F04C18/0215—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 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Compressor (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention provides a kind of scroll-type fluid machinery, wherein: static volute body and rotary vortex body are in together in the casing, and be meshing with each other by the heliconid of on its end plate, arranging respectively, static volute body is fixed on the casing, rotary vortex body is done planetary motion, wherein: the low-pressure cavity that is positioned at the static volute body end plate outside forms device casing inside is separated into hyperbaric chamber and low-pressure cavity, the low-pressure cavity that between static volute body end plate and hyperbaric chamber, communicates, thereby the distortion that prevents or alleviate static volute body end plate by low-pressure cavity formation device formation one and above-mentioned low-pressure cavity.

Description

Scroll-type fluid machinery
The present invention relates to a kind of scroll-type fluid machinery as compressor, decompressor and other similar machine.
Fig. 3 is an example of this vortex-type compressor in the prior art.
In Fig. 3, casing 1 comprises the front end-plate 4 that a cup-shaped main body 2, links to each other with main body 2 by bolt not shown in the figures, and a protecgulum 6 that is clamped at front end-plate 4 by bolt 5.One running shaft 7 passes protecgulum 6, and by supporting by casing 1 rotationally at bearing 8 between running shaft 7 and the protecgulum 6 and the bearing 9 between axle sleeve 7a and front end-plate 4.
Static volute body 10 and rotary vortex body 14 are installed in the casing 1.
Static volute body 10 comprises an end plate 11 and the heliconid 12 that is arranged on its internal surface.The external peripheral surface of end plate 11 closely contacts with the inner circumferential surface of cup-shaped body 2, and end plate 11 is fixed on the main body 2 by bolt 13.Thereby, form hyperbaric chamber 31 in the outside of end plate 11, in the inner edge formation low-pressure cavity 32 of end plate 11.
Rotary vortex body 14 comprises an end plate 15 and is arranged in the heliconid 16 with heliconid 12 roughly the same profiles of having on its internal surface.
Rotary vortex body 14 and static volute body 10 are in eccentric position mutually with turning radius, and are meshing with each other when rotating 180 ° as shown in the figure.At this moment, being arranged on the little sealing gasket 17 of heliconid 12 end faces and the internal surface of end plate 15 closely contacts, the little sealing gasket 18 of the end face of embedding heliconid 16 and the internal surface of end plate 11 closely contact, and heliconid 12 is done linear the contact each other with 16 side on many positions.Like this, just formed that a series of to show spirochetal center greatly be point- symmetric sealing loculus 19a and 19b.
One sleeve pipe 21 is installed in rotation on by rolling bearing 23 in the cylindrical sleeve 20 of stretching out from the outer surface center portion of the end plate 15 of rotary vortex body 14, and the cam pin 25 that stretches out from the interior edge face of running shaft 7 is installed in rotation on out the eccentric opening 24 on sleeve pipe 21.In addition, on sleeve pipe 21, be fixed with balancer weight gauge block 27.
Its mechanism of swaying 26 that prevents that can be used as thrust bearing simultaneously is installed between the internal surface of the outer annulus edge of outer surface of end plate 15 and front end-plate 4.Tighten an intrinsic auxiliary balance weight block 28 at the axle sleeve 7a of running shaft 7.
Thereby when running shaft 7 rotated, rotary vortex body 14 passed through cam pin 25, sleeve pipe 21, and rolling bearing 23 and sleeve 20 are driven and do planetary motion, and it can be prevented by mechanism 26 around rotatablely moving of its.
When rotary vortex body 14 was done planetary motion, the straight line contact segment between the heliconid 12 and 16 moved to the spiral center gradually.Consequently, Seal cage 19a and 19b volume when shifting to the spiral center reduces thereupon.In this process, the gas that enters low-pressure cavity 32 by certain intakeport not shown in the figures enters sealing loculus 19a and 19b by the open part of the peripheral end of heliconid 12 and 16, and arrives central chamber 22 by compression immediately.Then, gas enters hyperbaric chamber 31 by opening the liberation port 29 on static volute body 10 end plates 11 and pushing relief valve 30 open, and flows out by a liberation port not shown in the figures.
In above-mentioned existing vortex-type compressor, what be worth to worry is that pressurized gas in the above-mentioned in the course of the work hyperbaric chamber 31 are in operation and act on the outer surface of static volute body 10 end plates 11; Thereby make end plate 11 distortion and the depression of heart appearance therein.
When end plate 11 distortion, on end plate 11 internal surfaces, particularly between heliconid 16 end faces of the core of end plate 11 and rotary vortex body 14, will produce and be subjected to problems such as breakage such as wearing and tearing, improper friction and top stuck and heliconid 16.
Thereby, just need take measures, the height that increases the thickness of end plate 11 or reduce the core of heliconid 16 makes it lower than remaining part.Yet, in this problem that reduces device efficiency that exists at measure.
An object of the present invention is provides a kind of scroll-type fluid machinery that has solved the problems referred to above and improved reliability according to this situation.
In order to reach above-mentioned target, key of the present invention provides a kind of scroll-type fluid machinery, wherein: static volute body and rotary vortex body are meshing with each other by the heliconid of arranging respectively thereon, and be in together among the casing, static volute body is fixed on the casing, rotary vortex body is done planetary motion and is prevented that by certain mechanism it is around its rotation, it is characterized in that: be provided with a low-pressure cavity that casing inside is separated into above-mentioned mechanical mesolow chamber and hyperbaric chamber in the outside of static volute body end plate and form device, and between static turbine end plate and hyperbaric chamber, form device and form the low-pressure cavity that and above-mentioned low-pressure cavity are interconnected by this low-pressure cavity.
In the present invention, the low pressure in this low-pressure cavity acts on the outer surface of static volute body end plate by said structure.Thereby, the distortion that can prevent or alleviate end plate.
Can find out significantly that from top description the low pressure in the low-pressure cavity acts on the outer surface of static volute body end plate, thereby can prevent or alleviate the distortion of end plate.
Therefore, just might prevent improper friction, stuck and wearing and tearing between the spirochetal end face of the internal surface of static volute body end plate and rotary vortex body, prevent spirochetal breakage, thereby improve the reliability of scroll-type fluid machinery.
Fig. 1 is the sectional arrangement drawing of first embodiment of the invention.
Fig. 2 is the part sectional arrangement drawing of second embodiment of the invention.
Fig. 3 is the sectional arrangement drawing of a kind of vortex-type compressor of the prior art.
To be elaborated to most preferred embodiment of the present invention with reference to the accompanying drawings below.
Fig. 1 is first embodiment of the present invention.
One low pressure forms the outside that device 33 is placed in the end plate 11 of static volute body 10, and is fixed on together on the cup-shaped body 2 by bolt 13 and static volute body 10.Device 33 outer circumferential face is installed in by seal ring 35 on the inner peripheral surface of cup-shaped body 2 forming sealing configuration, so this low pressure forms device 33 inside of casing 1 is separated into low-pressure cavity 32 and hyperbaric chamber 31.In addition, form a low-pressure cavity 34 by installing 33 between static volute body 10 end plates 11 and hyperbaric chamber 31, low-pressure cavity 34 communicates by hole 36 and low-pressure cavity 32.
Have the hole 37 that and liberation port 29 communicate at device 33 middle body, the end of the tubular projection 38 of stretching to end plate 11 around the hole 37 by seal ring 39 attached to the outer surface of end plate 11 on to form sealing configuration.In addition, relief valve 30 opens and closes hole 37.
Other structure and a kind of compressor of the prior art shown in Figure 3 are similar.Appropriate section is quoted identical label, and is just no longer described here.
Thereby when the operation vortex-type compressor, low-pressure gas is inhaled into low-pressure cavity 32, enters low-pressure cavity 34 by hole 36 then.Low-pressure gas in the low-pressure cavity 34 acts on the outer surface of end plate 11 of static volute body 10 like this, acts on pressure on the end plate 11 and compares significantly with existing compressor and reduce, thereby can prevent or alleviate the distortion of end plate 11.
Fig. 2 is second embodiment of the present invention, and its mesopore 37 is strengthened, and relief valve 30 is positioned in the bottom in hole 37, and the outlet of liberation port 29 is by relief valve 30 its switchings of control.
In second embodiment, reduced the top clearance volume, thereby can improve the service behaviour of compressor.

Claims (5)

1, a kind of scroll-type fluid machinery, wherein: static volute body and rotary vortex body are in together in the casing, and be meshing with each other by the heliconid that is arranged on its end plate, static volute body is fixed on the casing, rotary vortex body is done planetary motion, and prevent that by a mechanism it is around its rotation, it is characterized in that: the low-pressure cavity that is positioned at the static volute body end plate outside forms device the casing inside of above-mentioned machinery is separated into a low-pressure cavity and a hyperbaric chamber, forms device by low-pressure cavity and form one and the low-pressure cavity that communicates of above-mentioned low-pressure cavity between static volute body end plate and hyperbaric chamber.
2, scroll-type fluid machinery according to claim 1 is characterized in that: low-pressure cavity forms device and is placed between static volute body end plate and the casing, and is in the same place with a bolton from the casing outside with static volute body.
3, scroll-type fluid machinery according to claim 1 is characterized in that: form the liberation port (29) that has one one end in the device and open at static volute body end plate core in low-pressure cavity and communicate, the other end leads to the hole (37) of hyperbaric chamber.
4, scroll-type fluid machinery according to claim 3 is characterized in that: the size of opening the hole (37) on low-pressure cavity formation device is bigger, on the liberation port (29) of this bottom, hole relief valve (30) is installed.
5, scroll-type fluid machinery according to claim 1, it is characterized in that: form in low-pressure cavity on the external peripheral surface of device, seal arrangement (35) is installed, so that casing inside is separated into hyperbaric chamber and low-pressure cavity between the inner circumferential surface of this external peripheral surface and casing.
CN91103678A 1990-08-16 1991-06-03 Scroll-type fluid machinery Expired - Fee Related CN1021590C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2216169A JPH04101001A (en) 1990-08-16 1990-08-16 Scroll type fluid machine
JP216169/90 1990-08-16

Publications (2)

Publication Number Publication Date
CN1059017A true CN1059017A (en) 1992-02-26
CN1021590C CN1021590C (en) 1993-07-14

Family

ID=16684368

Family Applications (1)

Application Number Title Priority Date Filing Date
CN91103678A Expired - Fee Related CN1021590C (en) 1990-08-16 1991-06-03 Scroll-type fluid machinery

Country Status (6)

Country Link
EP (1) EP0471425A1 (en)
JP (1) JPH04101001A (en)
KR (1) KR920004729A (en)
CN (1) CN1021590C (en)
AU (1) AU643273B2 (en)
CA (1) CA2042204C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100363625C (en) * 2004-01-14 2008-01-23 株式会社丰田自动织机 Compressor

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5342185A (en) * 1993-01-22 1994-08-30 Copeland Corporation Muffler plate for scroll machine
JP2000352389A (en) * 1999-06-08 2000-12-19 Mitsubishi Heavy Ind Ltd Scroll compressor
KR100427398B1 (en) * 2000-12-28 2004-04-17 라필찬 A scroll pump with a high pressure chamber and a low pressure chamber
KR100398472B1 (en) * 2000-12-28 2003-09-19 라필찬 A scroll pump with a high pressure chamber and a low pressure chamber
KR100427399B1 (en) * 2000-12-28 2004-04-17 라필찬 A scroll pump with a high pressure chamber and a low pressure chamber

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819875B2 (en) * 1980-03-18 1983-04-20 サンデン株式会社 Scroll compressor
GB2132276B (en) * 1982-12-23 1986-10-01 Copeland Corp Scroll-type rotary fluid-machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100363625C (en) * 2004-01-14 2008-01-23 株式会社丰田自动织机 Compressor

Also Published As

Publication number Publication date
AU7645391A (en) 1992-02-20
JPH04101001A (en) 1992-04-02
AU643273B2 (en) 1993-11-11
CN1021590C (en) 1993-07-14
EP0471425A1 (en) 1992-02-19
CA2042204C (en) 1995-05-09
KR920004729A (en) 1992-03-28
CA2042204A1 (en) 1992-02-17

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