CN102094826B - Plane cross coupling of scroll compressor - Google Patents
Plane cross coupling of scroll compressor Download PDFInfo
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- CN102094826B CN102094826B CN2011100285394A CN201110028539A CN102094826B CN 102094826 B CN102094826 B CN 102094826B CN 2011100285394 A CN2011100285394 A CN 2011100285394A CN 201110028539 A CN201110028539 A CN 201110028539A CN 102094826 B CN102094826 B CN 102094826B
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- plane
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- coupling
- scroll
- oldham
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Abstract
The invention discloses a plane cross coupling for a scroll compressor. The plane cross coupling is characterized in that a working main body comprises two pair of bosses which are arranged on a coupling in a cross-shaped mode, and the spatial location of a working plane is between the two end planes of the plane cross coupling; the working planes of the two pair of bosses of the plane cross coupling are vertical mutually, and positioned at the excircle side of the cross coupling; the working planes of the first pair of bosses of the plane cross coupling are laminated with the friction surfaces of a pair of bosses of a moving scroll, and the working planes of the second pair of bosses of the plane cross coupling are laminated with the friction surfaces of a pair of bosses of a static scroll; and the working planes of the bosses of the cross coupling, the friction surface of the moving scroll and the friction surface of the static scroll are all parallel to the central axis line of the cross coupling, thus the moving scroll performs plane circular motion under the driving of a crank shaft. According to the invention, the traditional extruding guide slide block (key) is omitted, and the problems of vibration, noise and short service life existing in the existing cross coupling are solved.
Description
Technical field:
The present invention relates to a kind of scroll machine field.Especially, the present invention relates to a kind of plane Oldham's coupling of the uniqueness of in these scroll machines, using.
Background technique:
This type machine that is commonly called " vortex " machinery in related domain is used for transporting of all types of fluids.This scroll machine can be made scroll expander, scroll compressor, vortex motor, vortex pump etc.Characteristics of the present invention are be suitable for these machines any.Yet for the purpose of illustrating, the disclosed embodiments are hermetically encapsulated coolant scroll compressor form.
Scroll compressor is more and more at large as the compressor in refrigeration and the air condition application.Usually, scroll compressor mainly is made up of moving scroll, fixed scroll, Oldham's coupling, bearing support, bent axle, motor, can etc.Swirling device in the scroll compressor comprises two similar scrollworks of shape, and each scrollwork is installed on the separate terminal plate, to limit a scroll.Said two scroll are worked in coordination together, the wherein moving relative fixed scroll Rotate 180 of scroll degree and eccentric opposed installation.Driven by motor bent axle in the scroll compressor makes moving scroll with respect to the fixed scroll orbiting, so between the scrollwork of moving scroll and fixed scroll, form a series of crescent-shaped spaces.In the Orbiting process of moving scroll; The crescent-shaped space of outer most edge constantly when move at the center volume of crescent-shaped space also reducing; Thereby make the gas volume in this space reduce the pressure rising; Up to being communicated with the central row pore, thereby the gas after will compressing is discharged compressor.
The Oldham's coupling of scroll compressor is satisfying moving scroll in the revolution of fixed scroll center, in order to anti-stop scroll rotation.The shaft coupling of the anti-relative fixed scroll rotation of stop scroll can be taked various ways, but generally comprises two pairs of keys that stretch out from ring part.Pair of keys is engaged in the groove of moving scroll, and second pair of key is engaged in the groove of fixed scroll.Although this Oldham's coupling with four keys can be prevented the spinning motion of stop scroll with respect to fixed scroll effectively, this Oldham's coupling a lot of problems can occur in the course of the work.Because the existence of these four keys, Oldham's coupling can receive the effect of torsional moment in working procedure, thereby makes the Oldham's coupling torsional deflection, makes the area of contact of key reduce to quicken the wearing and tearing of key surface like this.The result causes the noise of scroll compressor and vibration to increase, and shorten the working life of compressor.Simultaneously, just because of the existence of these four keys, Oldham's coupling sends periodic tilt and vibration noise in working procedure collision repeatedly between moving scroll end plate and fixed scroll end plate easily.This has not only shortened the life-span of compressor, also constantly sends nuisance vibration and noise.
Summary of the invention:
The object of the present invention is to provide a kind of Oldham's coupling that can address the above problem, the Oldham's coupling distortion that can not twist in the course of the work in said plane also can not vibrated between moving scroll end plate and fixed scroll end plate simultaneously in run-off the straight.
In order to realize above-mentioned purpose; The invention provides a kind of plane Oldham's coupling that is used for scroll compressor; Said plane Oldham's coupling is a plane annular spare; This plane Oldham's coupling outer rim longitudinally is symmetrically arranged with first boss and second boss, and this plane Oldham's coupling outer rim is provided with the 3rd boss and the 4th boss along lateral symmetry; In the first boss arranged outside first working surface is arranged, in the second boss arranged outside second working surface is arranged, first working surface is parallel with second working surface; In the 3rd boss arranged outside the 3rd working surface is arranged, in the 4th boss arranged outside the 4th working surface is arranged, the 3rd working surface is parallel with the 4th working surface; Oldham's coupling top, said plane is provided with the first end plane, the bottom is provided with the second end plane, and first end plane and the second end plane are parallel to each other.
Said first working surface, second working surface, the 3rd working surface and the 4th working surface all equal the spacing between first end plane and the second end plane along the axial height of plane Oldham's coupling.
Said scroll compressor comprises scrollwork, moving scroll and fixed scroll; Said scrollwork is arranged between moving scroll and the fixed scroll.
Said moving scroll comprises moving scroll end plate, the 5th boss and the 6th boss, and the 5th boss and the 6th boss are arranged on fixed scroll end plate outer rim, and the 6th boss and the 7th boss protrude along the scrollwork central axial direction; Said the 5th boss is provided with moving scroll first rubbing surface, the 6th boss is provided with moving scroll second rubbing surface, and moving scroll first rubbing surface and moving scroll second rubbing surface are parallel to each other.
Said fixed scroll comprises fixed scroll end plate, the 7th boss and the 8th boss; The 7th boss and the 8th boss are arranged on fixed scroll end plate outer rim; The 7th boss and the 8th boss platform are along scrollwork central axial direction protrusion, and the height of said the 7th boss and the 8th boss all equals the spacing between first end plane and the second end plane; Said the 7th boss is provided with fixed scroll first rubbing surface, and the 8th boss is provided with fixed scroll second rubbing surface.
Said first working surface and fixed scroll first rubbing surface or fixed scroll second rubbing surface fit; Said the 3rd working surface and fixed scroll first rubbing surface or fixed scroll second rubbing surface fit.
Said second working surface and moving scroll first rubbing surface or moving scroll second rubbing surface fit; Said the 4th working surface and moving scroll first rubbing surface or moving scroll second rubbing surface fit.
All be covered with one deck wearing layer on said first working surface, second working surface, the 3rd working surface, the 4th working surface, fixed scroll first rubbing surface, fixed scroll second rubbing surface, moving scroll first rubbing surface or moving scroll second rubbing surface.
The height of said first boss, second boss, the 3rd boss, the 4th boss, the 5th boss, the 6th boss, the 7th boss and the 8th boss all equals the spacing between first end plane and the second end plane.
The present invention does not have traditional outstanding guide runner (being key), has solved short problem of the existing vibration of existing Oldham's coupling, noise and life-span.
The invention has the advantages that: the one, the plane Oldham's coupling can be owing to inclination makes local working surface wearing and tearing in working procedure; Basically eliminated that Oldham's coupling collides up and down with the orbiting and fixed scroll in the course of the work and the noise that sends; The 2nd, the work area that the plane Oldham's coupling is very big is more accurate to the anti-rotation effect of moving scroll; And reduced the surface contact stress of Oldham's coupling working surface, and improved the working condition of Oldham's coupling, add and be coated with layer oxide film on the working surface; Increased the wear resistance of working surface, thereby the operating life of scroll compressor is prolonged.
Description of drawings:
Fig. 1 is the structural representation of plane of the present invention Oldham's coupling; Wherein Fig. 1 a is that plan view, Fig. 1 b are right elevations;
Fig. 2 is the normal axomometric drawing of plane of the present invention Oldham's coupling;
Fig. 3 is the plan view of the moving scroll of the present invention;
Fig. 4 is the normal axomometric drawing of the moving scroll of the present invention;
Fig. 5 is the plan view of fixed scroll of the present invention;
Fig. 6 is the normal axomometric drawing of fixed scroll of the present invention;
Fig. 7 is for adopting the scroll compressor cross-sectional schematic of plane of the present invention Oldham's coupling;
Fig. 8 is the erection drawing of plane of the present invention Oldham's coupling and moving scroll and fixed scroll;
Fig. 9 is a sectional view of assembly shown in Fig. 8;
Figure 10 is the plan view of assembly shown in Fig. 8;
Figure 11 is a sectional view of the plan view of assembly shown in Fig. 8;
Figure 12 is the another one sectional view of the plan view of assembly shown in Fig. 8.
Wherein: 1 is plane Oldham's coupling first working surface; 2 is plane Oldham's coupling second working surface; 3 is plane Oldham's coupling the 3rd working surface; 4 is plane Oldham's coupling the 4th working surface; 5 is Oldham's coupling first end plane, plane; 6 is Oldham's coupling the second end plane, plane; 7 are moving scroll first rubbing surface; 8 are moving scroll end plate face; 9 are moving scroll second rubbing surface; 10 is fixed scroll first rubbing surface; 11 is fixed scroll end plate face; 12 is fixed scroll second rubbing surface; 13 are moving scroll; 14 is the plane Oldham's coupling; 15 is fixed scroll; 16 is bolt; 17 is support; 18 is bearing; 19 is bent axle; 20 is motor stator; 21 is rotor; 22 is middle casing; 23 is oil separating plate; 24 is lower housing; 25 is centrifugal oil thrower wheel; 26 is upper casing.
Embodiment:
Below in conjunction with accompanying drawing the present invention is done and to describe in further detail:
Referring to Fig. 1-12, though principle of the present invention can be applied in many dissimilar scroll machines, for exemplary, described here is fully-closed vortex compressor.
Accompanying drawing below, in institute's drawings attached, just as label represent the component identical in all accompanying drawings or the face of component.A kind of cross-sectional schematic of scroll compressor has been shown among Fig. 7, and it comprises the plane Oldham's coupling according to uniqueness of the present invention, and representes with label 14.Scroll compressor comprises compressor middle shell 22, lower shell body 24, upper shell 26, and support 17, support are fixed in the compressor middle shell 22; Fixed scroll 15 is fixed in the compressor housing; Moving scroll 13 cooperates with fixed scroll 15 through plane Oldham's coupling 14, and moving scroll 13 cooperates with the upper surface of support 17; Bent axle 19 passes the bearing 18 that is installed in the support 17 and cooperates with moving scroll 13, and the rotation of the circumference of bent axle 19 makes scroll 13 do the planar circumferential motion through the effect of plane Oldham's coupling 14 like this.
The plane Oldham's coupling 14 of the uniqueness that the objective of the invention is to describe among Fig. 1 and Fig. 2.The present invention relates to first working surface 1, second working surface 2, the 3rd working surface 3, the 4th working surface 4, plane Oldham's coupling first end face 5 that cooperates with fixed scroll end plate face 11 and plane Oldham's coupling second end face 6 that cooperates with moving scroll end plate face 8 on four boss of plane Oldham's coupling 14.
Referring to Fig. 9 and Figure 12; Boss first working surface 1 of plane Oldham's coupling and the 7 parallel and applyings of the boss of moving scroll first rubbing surface; Boss the 3rd working surface 3 of plane Oldham's coupling and the boss of moving scroll second rubbing surface 9 parallel and applyings, second end face 6 of plane Oldham's coupling and the 8 parallel and applyings of the end plate face of moving scroll.In the working procedure, adopt plane of the present invention Oldham's coupling 14 on two first parallel rubbing surfaces 7 of moving scroll and second rubbing surface 9, to slidably reciprocate, the plane Oldham's coupling slidably reciprocates on the end plate face 8 that moves scroll simultaneously.
Referring to Fig. 9 and Figure 12; First rubbing surface, the 10 parallel and applyings of boss second working surface 2 of plane Oldham's coupling and fixed scroll; The 12 parallel and applyings of second rubbing surface, first end face 5 of plane Oldham's coupling and the 11 parallel and applyings of the end plate face of fixed scroll of boss the 4th working surface 4 of plane Oldham's coupling and fixed scroll.In the working procedure, plane of the present invention Oldham's coupling 14 slidably reciprocates on two of the fixed scroll first parallel rubbing surfaces 10 and second rubbing surface 12, and the plane Oldham's coupling slidably reciprocates on fixed scroll end plate face simultaneously.
Referring to Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12; In the parallel space of plane of the present invention Oldham's coupling between the end plate face 11 of end plate face 8 that moves scroll and fixed scroll; And second end face 6 of plane Oldham's coupling is fitted with the end plate face 8 of moving scroll; First end face 5 of plane Oldham's coupling is fitted with the end plate face 11 of fixed scroll; And the plane Oldham's coupling is in movement process, and second end face 6 of plane Oldham's coupling 14 slides on the end plate face 8 of moving scroll, and first end face 5 of plane Oldham's coupling 14 slides on the end plate face 11 of fixed scroll.Because two end faces of plane Oldham's coupling slide on two parallel end plate faces respectively; So in the working procedure of scroll compressor; When receiving uneven gas force in the scrollwork of moving scroll 13, moving scroll 13 has only the trend of inclination and can not tilt.So just avoided the plane Oldham's coupling in the course of the work owing to the inclination of moving scroll makes the collision back and forth between the end plate of the orbiting and fixed scroll of plane Oldham's coupling; Advantage one of the present invention is to have eliminated the plane Oldham's coupling basically in the course of the work owing to colliding the noise that sends up and down; The 2nd, improved the working condition of plane Oldham's coupling, promptly the plane Oldham's coupling can be owing to inclination makes local working surface serious wear in working procedure.
Four boss working surfaces (1 of plane of the present invention Oldham's coupling 14; 2; 3; 4) work area all has the work area of key of the plane Oldham's coupling of four keys greater than same model, big like this work area one is to reduce the surface contact stress of plane Oldham's coupling boss working surface, and the 2nd, more accurate to the anti-rotation of moving scroll 13.Add on the boss working surface of plane of the present invention Oldham's coupling 14 and be coated with layer oxide film, increased the wear resistance of plane Oldham's coupling working surface, thereby the operating life of scroll compressor is prolonged.
Although accompanying drawing has been described embodiments of the invention; For a person skilled in the art; Under the prerequisite of protection domain that does not exceed additional claims and principle of the present invention, can make amendment to the present invention, variation and modification, scope of the present invention is limited accompanying claims and equivalent thereof.
Above content is to combine concrete preferred implementation to further explain that the present invention did; Can not assert that embodiment of the present invention only limits to this; Those of ordinary skill for technical field under the present invention; Under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to the present invention and confirm scope of patent protection by claims of being submitted to.
Claims (5)
1. plane Oldham's coupling that is used for scroll compressor; It is characterized in that: said plane Oldham's coupling is a plane annular spare; This plane Oldham's coupling outer rim longitudinally is symmetrically arranged with first boss and second boss, and this plane Oldham's coupling outer rim is provided with the 3rd boss and the 4th boss along lateral symmetry; In the first boss arranged outside first working surface is arranged, in the second boss arranged outside second working surface is arranged, first working surface is parallel with second working surface; In the 3rd boss arranged outside the 3rd working surface is arranged, in the 4th boss arranged outside the 4th working surface is arranged, the 3rd working surface is parallel with the 4th working surface; Oldham's coupling top, said plane is provided with the first end plane, the bottom is provided with the second end plane, and first end plane and the second end plane are parallel to each other.
2. a kind of according to claim 1 plane Oldham's coupling that is used for scroll compressor is characterized in that: said first working surface, second working surface, the 3rd working surface and the 4th working surface all equal the spacing between first end plane and the second end plane along the axial height of plane Oldham's coupling.
3. a kind of according to claim 1 plane Oldham's coupling that is used for scroll compressor is characterized in that: said scroll compressor comprises scrollwork, moving scroll and fixed scroll; Said scrollwork is arranged between moving scroll and the fixed scroll.
4. like the said a kind of plane Oldham's coupling that is used for scroll compressor of claim 3; It is characterized in that: said fixed scroll comprises fixed scroll end plate, the 7th boss and the 8th boss; The 7th boss and the 8th boss are arranged on fixed scroll end plate outer rim; The 7th boss and the 8th boss platform are along scrollwork central axial direction protrusion, and the height of said the 7th boss and the 8th boss all equals the spacing between first end plane and the second end plane; Said the 7th boss is provided with fixed scroll first rubbing surface, and the 8th boss is provided with fixed scroll second rubbing surface.
5. like the said a kind of plane Oldham's coupling that is used for scroll compressor of claim 4, it is characterized in that: the height of said first boss, second boss, the 3rd boss, the 4th boss, the 7th boss and the 8th boss all equals the spacing between first end plane and the second end plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100285394A CN102094826B (en) | 2011-01-26 | 2011-01-26 | Plane cross coupling of scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100285394A CN102094826B (en) | 2011-01-26 | 2011-01-26 | Plane cross coupling of scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102094826A CN102094826A (en) | 2011-06-15 |
| CN102094826B true CN102094826B (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100285394A Expired - Fee Related CN102094826B (en) | 2011-01-26 | 2011-01-26 | Plane cross coupling of scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102094826B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101821708B1 (en) * | 2011-01-11 | 2018-01-24 | 엘지전자 주식회사 | Scroll compressor with split type orbitting scroll |
| CN103032316A (en) * | 2011-09-30 | 2013-04-10 | 丹佛斯（天津）有限公司 | Scroll compressor and coupling therefor |
| CN103032315A (en) * | 2011-09-30 | 2013-04-10 | 丹佛斯（天津）有限公司 | Scroll compressor and coupling therefor |
| CN103032317A (en) * | 2011-09-30 | 2013-04-10 | 丹佛斯（天津）有限公司 | Scroll compressor and coupling therefor |
| KR101441928B1 (en) | 2012-03-07 | 2014-09-22 | 엘지전자 주식회사 | Horizontal type scroll compressor |
| US9638036B2 (en) * | 2014-10-31 | 2017-05-02 | Emerson Climate Technologies, Inc. | Scroll compressor including oldham coupling having keys that are slidingly received in slots of a non-orbiting scroll and/or an orbiting scroll |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5037280A (en) * | 1987-02-04 | 1991-08-06 | Mitsubishi Denki K.K. | Scroll fluid machine with coupling between rotating scrolls |
| CN1062337C (en) * | 1995-10-13 | 2001-02-21 | 甘肃工业大学 | Mechanism for preventing self-rotating for vortex compressor |
| CN1566696A (en) * | 2003-06-17 | 2005-01-19 | 乐金电子(天津)电器有限公司 | Cross slip-ring oil supply structure for vortex type compressor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2919576B2 (en) * | 1990-07-31 | 1999-07-12 | 三洋電機株式会社 | Scroll compressor |
| JP2008138572A (en) * | 2006-11-30 | 2008-06-19 | Mitsubishi Electric Corp | Scroll type fluid machine |
-
2011
- 2011-01-26 CN CN2011100285394A patent/CN102094826B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5037280A (en) * | 1987-02-04 | 1991-08-06 | Mitsubishi Denki K.K. | Scroll fluid machine with coupling between rotating scrolls |
| CN1062337C (en) * | 1995-10-13 | 2001-02-21 | 甘肃工业大学 | Mechanism for preventing self-rotating for vortex compressor |
| CN1566696A (en) * | 2003-06-17 | 2005-01-19 | 乐金电子(天津)电器有限公司 | Cross slip-ring oil supply structure for vortex type compressor |
Non-Patent Citations (2)
| Title |
|---|
| JP平4-91384A 1992.03.24 |
| JP特开2008-138572A 2008.06.19 |
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| Publication number | Publication date |
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| CN102094826A (en) | 2011-06-15 |
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Granted publication date: 20121128 Termination date: 20150126 |
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