CN104121197B - Scroll plate - Google Patents
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- CN104121197B CN104121197B CN201310644795.5A CN201310644795A CN104121197B CN 104121197 B CN104121197 B CN 104121197B CN 201310644795 A CN201310644795 A CN 201310644795A CN 104121197 B CN104121197 B CN 104121197B
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Abstract
The invention discloses a kind of scroll plate, relate to screw compressor manufacturing technology field, it is initial circular arc including scroll plate center top, the outer tangent and outward extending outer composite curve of end points of described initial circular arc that scroll plate outer wall is initial with described scroll plate center；Scroll plate inwall is and the tangent and outward extending interior composite curve of end points in the described initial circular arc at described scroll plate center.Than prior art, the present invention can solve the problem that existing scroll plate leakage rate is big and heating temp is high.
Description
Technical field
The present invention relates to screw compressor manufacturing technology field, a kind of scroll plate for screw compressor.
Background technology
The core component of screw compressor is scroll plate, and scroll plate is provided with the curved surface connected into by involute and constitutes sidewall
Vortex ring；The operation principle of screw compressor is exactly to be engaged each other by two dynamic and static whirlpool dishes with vortex ring, forms at least one pair of
Crescent cavity volume, it is achieved sucking of fluid is compressed or expand the process discharged；Therefore the manufacture of scroll plate scroll molded line
Precision directly influences the service behaviour of screw compressor.Having a kind of scroll plate, the molded line of this scroll plate is to be resolved song by one
The involute profile that line is constituted, owing to involute profile is to be made up of an analytic curve, the cross section of formed vortex ring is cut for waiting
Face；There are the following problems during using for this scroll plate with uiform section vortex ring: 1, designs big gas row when needing
When amount or the screw compressor of pressure ratio, the only number of turns by increasing molded line solves, and at this moment the leakage contour of compressor increases
Add, operating efficiency can be caused to reduce；2, the number of turns of molded line increases, and can cause whirlpool because gas time of staying in cavity is long
Capstan entirety heating temp is too high, complete machine overall dimensions strengthen；3, the number of turns increasing of molded line also can cause profile processing difficulty.
Summary of the invention
The technical problem to be solved is to provide a kind of variable cross-section wall thickness cavity volume being made up of composite curve
Scroll plate, this scroll plate can solve the problem that existing scroll plate leakage rate is big and heating temp is high.
The present invention solves the technical scheme that technical problem used: this all scroll plate, scroll plate center top is
Initial circular arc, the outer end points of described initial circular arc that scroll plate outer wall is initial with described scroll plate center is tangent and stretches out
Outer composite curve；Scroll plate inwall is tangent with end points in the described initial circular arc at described scroll plate center and stretches out
Interior composite curve；
Described initial an arc equation is: (x-5.108)2+ (y-7.819)2=12.5 millimeters, described initial arc radius is
3.5 millimeter；
Described outer composite curve is by the first involute in smoothing junction successively, and the first circular arc, the second circular arc, second gradually opens
Line, transition arc, the 3rd involute and three-arc are constituted；
Described first involute, the second involute, the equation of the 3rd involute is:
Wherein: described first involute, the base radius of the second involute and the 3rd involute is radius ri, ri=
4.2176 millimeter；
The initial exhibition angle of described first involute is exhibition angle α 1, α 1=-40.7547 °, described first involute involute exhibition
Angle is exhibition angle φ 1:160.7547 °≤φ 1≤400.7547 °；
The initial exhibition angle of described second involute is exhibition angle α 2, α 2=-40.7547 °, described second involute involute exhibition
Angle is exhibition angle φ 2:940.7547 °≤φ 2≤1339.5 °；
The initial exhibition angle of described 3rd involute is exhibition angle α 3, α 3=-54.3396 °, described 3rd involute involute exhibition
Angle is exhibition angle φ 3:1335.3651 °≤φ 3≤1479.6457 °；
Described first an arc equation is: (x-4.2176)2+ (y-17)2=2162.25 millimeters, described first arc radius is
46.5 millimeters；
Described second an arc equation is: (x+4.2176)2+ (y-13.6877)2=3087.169 millimeters；Described second circular arc
Radius is 55.5623 millimeters；
Described transition arc radius is 9 millimeters；
Described three-arc equation is: x2+y2=11881 millimeters, described three-arc radius is 109 millimeters；
Described interior composite curve by straight line in smoothing junction successively, the 4th circular arc, the 4th involute, the 5th circular arc, the 6th
Circular arc and the 5th involute are constituted；
The equation of described 4th involute and described 5th involute is:
Wherein: the base radius of described 4th involute and described 5th involute is ro , ro=4.2176 millimeters；
The initial exhibition angle of described 4th involute is exhibition angle α 4, α 4=40.7574 °, described 4th involute involute exhibition angle
For exhibition angle φ 4:252.2452 °≤φ 4≤499.2452 °；
The initial exhibition angle of described 5th involute is exhibition angle α 5, α 5=40.7574 °, described 5th involute involute exhibition angle
For exhibition angle φ 5:1039.3651 °≤φ 5≤1435.2452 °；
Described 4th an arc equation is: (x+5.5025)2+ (y+6.9175)2=116.64 millimeters；Described 4th arc radius
It it is 10.8 millimeters；
Described 5th an arc equation is: (x+4.2176)2+ (y+17)2=2889.0625 millimeters；Described 5th arc radius
It it is 53.75 millimeters；
Described 6th an arc equation is: (x-4.2176)2+ (y+13.6877)2=3945.3724 millimeters；Described 6th circular arc
Radius is 62.8122 millimeters；
Described straight line is end points and the line of end points in described 4th circular arc in described initial circular arc.
Described initial circular arc outer end point coordinates is: x=8.1391 millimeter, y=9.569 millimeter；End points in described initial circular arc
Coordinate is: x=5.2482 millimeter, y=4.322 millimeter；
Described first circular arc the inner point coordinates is: x=4.2176 millimeter, y=-29.5 millimeter；The outer end points of described first circular arc
Coordinate is: x=47.5003 millimeter, y=33.9955 millimeter；
Described second circular arc outer end point coordinates is: x=-4.2176 millimeter, y=69.25 millimeter；
Described three-arc the inner point coordinates is: x=-23.5478 millimeter, y=-106.426 millimeter；Outside described three-arc
End points coordinate is: x=67.4228 millimeter, y=-85.649 millimeter；
Described 4th circular arc the inner point coordinates is: x=-5.9351 millimeter, y=3.8737 millimeter；Described 4th circular arc outer end
Point coordinates is: x=-15.444 millimeter, y=-11.1374 millimeter；
Described 5th circular arc the inner point coordinates is: x=-4.2176 millimeter, y=36.75 millimeter；The outer end points of described 5th circular arc
Coordinate is: x=-54.2487 millimeter, y=-36.6454 millimeter；
Described 6th circular arc outer end point coordinates is: x=4.2176 millimeter, y=-76.5 millimeter；
Described second involute outer end point coordinates is: x=-65.0004 millimeter, y=74.2636 millimeters；
Described 3rd involute the inner point coordinates is: x=-68.6703 millimeter, y=72.4997 millimeters；
Described 5th involute outer end point coordinates is: x=65.5116 millimeter, y=-82.9935 millimeter.
Above-mentioned scroll plate technical scheme, more specifically it may also is that described initial circular arc outer end point coordinates is: x=8.1391
Millimeter, y=9.569 millimeter；Described initial circular arc the inner point coordinates is: x=5.2482 millimeter, y=4.322 millimeter；
Described first circular arc the inner point coordinates is: x=4.2176 millimeter, y=-29.5 millimeter；The outer end points of described first circular arc
Coordinate is: x=47.5003 millimeter, y=33.9955 millimeter；
Described second circular arc outer end point coordinates is: x=-4.2176 millimeter, y=69.25 millimeter；
Described three-arc the inner point coordinates is: x=-23.5478 millimeter, y=-106.426 millimeter；Outside described three-arc
End points coordinate is: x=67.4228 millimeter, y=-85.649 millimeter；
Described 4th circular arc the inner point coordinates is: x=-5.9351 millimeter, y=3.8737 millimeter；Described 4th circular arc outer end
Point coordinates is: x=-15.444 millimeter, y=-11.1374 millimeter；
Described 5th circular arc the inner point coordinates is: x=-4.2176 millimeter, y=36.75 millimeter；The outer end points of described 5th circular arc
Coordinate is: x=-54.2487 millimeter, y=-36.6454 millimeter；
Described 6th circular arc outer end point coordinates is: x=4.2176 millimeter, y=-76.5 millimeter；
Described second involute outer end point coordinates is: x=-65.0004 millimeter, y=74.2636 millimeters；
Described 3rd involute the inner point coordinates is: x=-68.6703 millimeter, y=72.4997 millimeters；
Described 5th involute outer end point coordinates is: x=65.5116 millimeter, y=-82.9935 millimeter.
Owing to have employed technique scheme, the present invention compared with prior art, has the beneficial effect that due to vortex
The curved surface that the inside and outside wall of dish cavity volume uses composite curve to be formed is formed, and inside and outside composite curve by a plurality of analytic curve and
A plurality of involute connects and composes, and the cavity volume sidewall formed is variable cross-section；Therefore, cavity volume volume increases, by variable cross-section wall
When the thick scroll plate forming cavity volume uses as the scroll plate of big gas displacement or the screw compressor of pressure ratio, comparable by
The number of turns that uiform section wall thickness forms cavity volume is few；Not only reduce the number of turns of cavity volume, reduce leakage rate, improve chamber simultaneously
The thermodynamic status in internal portion, reduces the heating temp of scroll plate.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
The present embodiment uses rectangular coordinate system to be designed computing；
The scroll plate center top that scroll plate as shown in Figure 1 includes is initial circular arc AC, and scroll plate outer wall is and whirlpool
The outer tangent and outward extending outer composite curve AR of terminal A of initial circular arc AC that capstan center is initial；Scroll plate inwall be with
Tangent and the outward extending interior composite curve CL of end points C in the initial circular arc AC at scroll plate center；
Initial an arc equation is: (x-5.108)2+ (y-7.819)2=12.5 millimeters, initial arc radius is 3.5 millimeters；Rise
The outer end points Building A of beginning circular arc AC is designated as: x=8.1391 millimeter, y=9.569 millimeter；In initial circular arc AC, end points Building C is designated as: x=
5.2482 millimeter, y=4.322 millimeter；
Outer composite curve is by the first involute AE, the first circular arc EF in smoothing junction successively, and the second circular arc FG, second gradually opens
Line GH, transition arc HP, the 3rd involute PQ and three-arc QR are constituted；
First involute AE, the second involute GH), the equation of the 3rd involute PQ is:
Wherein: the first involute AE, the base radius of the second involute GH and the 3rd involute PQ is radius ri, ri=
4.2176 millimeter；
The initial exhibition angle of the first involute AE is exhibition angle α 1, α 1=-40.7547 °, and the first involute AE involute exhibition angle is
Exhibition angle φ 1:160.7547 °≤φ 1≤400.7547 °；
The initial exhibition angle of the second involute GH is exhibition angle α 2, α 2=-40.7547 °, and the second involute GH involute exhibition angle is
Exhibition angle φ 2:940.7547 °≤φ 2≤1339.5 °；The outer end points Building H of second involute GH is designated as: x=-65.0004 millimeter, y=
74.2636 millimeters；
The initial exhibition angle of the 3rd involute PQ is exhibition angle α 3, α 3=-54.3396 °, and the 3rd involute PQ involute exhibition angle is
Exhibition angle φ 3:1335.3651 °≤φ 3≤1479.6457 °；In 3rd involute PQ, end points Building P is designated as: x=-68.6703 millimeter,
Y=72.4997 millimeters；
First circular arc EF equation is: (x-4.2176)2+ (y-17)2=2162.25 millimeters, the first arc radius is 46.5 millis
Rice；In first circular arc EF, end points Building E is designated as: x=4.2176 millimeter, y=-29.5 millimeter；The outer end points Building F of first circular arc EF is designated as: x
=47.5003 millimeters, y=33.9955 millimeter；
Second circular arc FG equation is: (x+4.2176)2+ (y-13.6877)2=3087.169 millimeters；Second arc radius is
55.5623 millimeters；The outer end points Building G of second circular arc FG is designated as: x=-4.2176 millimeter, y=69.25 millimeter；
Transition arc HP radius is 9 millimeters；
Three-arc QR equation is: x2+y2=11881 millimeters, three-arc QR radius is 109 millimeters；In three-arc QR
End points Building Q is designated as: x=-23.5478 millimeter, y=-106.426 millimeter；The outer end points Building R of three-arc QR is designated as: x=67.4228 milli
Rice, y=-85.649 millimeter；
Interior composite curve CL is by straight line CD in smoothing junction successively, the 4th circular arc DB, the 4th involute BI, the 5th circular arc
IJ, the 6th circular arc JK and the 5th involute KL are constituted；
The equation of the 4th involute BI and the 5th involute KL is:
Wherein: the base radius of the 4th involute BI and the 5th involute KL is ro , ro=4.2176 millimeters；
The initial exhibition angle of the 4th involute BI is exhibition angle α 4, α 4=40.7574 °, and the 4th involute BI involute exhibition angle is exhibition
Angle φ 4:252.2452 °≤φ 4≤499.2452 °；
The initial exhibition angle of the 5th involute KL is exhibition angle α 5, α 5=40.7574 °, and the 5th involute KL involute exhibition angle is exhibition
Angle φ 5:1039.3651 °≤φ 5≤1435.2452 °；The outer end points Building L of 5th involute KL is designated as: x=65.5116 millimeter, y=-
82.9935 millimeters；
4th circular arc DB equation is: (x+5.5025)2+ (y+6.9175)2=116.64 millimeters；4th arc radius is 10.8
Millimeter；In 4th circular arc DB, end points Building D is designated as: x=-5.9351 millimeter, y=3.8737 millimeter；4th circular arc DB outer end points Building B mark
For: x=-15.444 millimeter, y=-11.1374 millimeter；
5th circular arc IJ equation is: (x+4.2176)2+ (y+17)2=2889.0625 millimeters；5th arc radius is 53.75
Millimeter；In 5th circular arc IJ, end points Building I is designated as: x=-4.2176 millimeter, y=36.75 millimeter；The outer end points J coordinate of 5th circular arc IJ
For: x=-54.2487 millimeter, y=-36.6454 millimeter；
6th circular arc JK equation is: (x-4.2176)2+ (y+13.6877)2=3945.3724 millimeters；6th arc radius is
62.8122 millimeters；The outer end points Building K of 6th circular arc is designated as: x=4.2176 millimeter, y=-76.5 millimeter；
Straight line CD is the line of end points D in end points C and the 4th circular arc DB in initial circular arc AC.
Claims (2)
1. a scroll plate, it is characterised in that: scroll plate center top is initial circular arc (AC), and scroll plate outer wall is with described
Tangent and the outward extending outer composite curve of described initial circular arc (AC) the outer end points (A) (AR) that scroll plate center is initial；Whirlpool
Capstan inwall is tangent and outward extending interior compound with described initial circular arc (AC) the interior end points (C) at described scroll plate center
Curve (CL)；
Described initial an arc equation is: (x-5.108)2+ (y-7.819)2=12.5 millimeters, described initial arc radius is 3.5 millis
Rice；
Described outer composite curve by the first involute (AE) in smoothing junction successively, the first circular arc (EF), the second circular arc (FG), the
Two involutes (GH), transition arc (HP), the 3rd involute (PQ) and three-arc (QR) are constituted；
Described first involute (AE), the second involute (GH), the equation of the 3rd involute (PQ) is:
Wherein: described first involute (AE), the base radius of the second involute (GH) and the 3rd involute (PQ) is radius
ri, ri=4.2176 millimeters；
The initial exhibition angle of described first involute (AE) is exhibition angle α 1, α 1=-40.7547 °, and described first involute (AE) is gradually opened
Line exhibition angle is exhibition angle φ 1:160.7547 °≤φ 1≤400.7547 °；
The initial exhibition angle of described second involute (GH) is exhibition angle α 2, α 2=-40.7547 °, and described second involute (GH) is gradually opened
Line exhibition angle is exhibition angle φ 2:940.7547 °≤φ 2≤1339.5 °；
The initial exhibition angle of described 3rd involute (PQ) is exhibition angle α 3, α 3=-54.3396 °, and described 3rd involute (PQ) is gradually opened
Line exhibition angle is exhibition angle φ 3:1335.3651 °≤φ 3≤1479.6457 °；
Described first circular arc (EF) equation is: (x-4.2176)2+ (y-17)2=2162.25 millimeters, described first arc radius is
46.5 millimeters；
Described second circular arc (FG) equation is: (x+4.2176)2+ (y-13.6877)2=3087.169 millimeters；Described second circular arc
Radius is 55.5623 millimeters；
Described transition arc (HP) radius is 9 millimeters；
Described three-arc (QR) equation is: x2+y2=11881 millimeters, described three-arc (QR) radius is 109 millimeters；
Described interior composite curve (CL) by straight line (CD) in smoothing junction successively, the 4th circular arc (DB), the 4th involute (BI), the
Five circular arcs (IJ), the 6th circular arc (JK) and the 5th involute (KL) are constituted；
The equation of described 4th involute (BI) and described 5th involute (KL) is:
Wherein: the base radius of described 4th involute (BI) and described 5th involute (KL) is ro , ro=4.2176 millis
Rice；
The initial exhibition angle of described 4th involute (BI) is exhibition angle α 4, α 4=40.7574 °, described 4th involute (BI) involute
Exhibition angle is exhibition angle φ 4:252.2452 °≤φ 4≤499.2452 °；
The initial exhibition angle of described 5th involute (KL) is exhibition angle α 5, α 5=40.7574 °, described 5th involute (KL) involute
Exhibition angle is exhibition angle φ 5:1039.3651 °≤φ 5≤1435.2452 °；
Described 4th circular arc (DB) equation is: (x+5.5025)2+ (y+6.9175)2=116.64 millimeters；Described 4th arc radius
It it is 10.8 millimeters；
Described 5th circular arc (IJ) equation is: (x+4.2176)2+ (y+17)2=2889.0625 millimeters；Described 5th arc radius
It it is 53.75 millimeters；
Described 6th circular arc (JK) equation is: (x-4.2176)2+ (y+13.6877)2=3945.3724 millimeters；Described 6th circular arc
Radius is 62.8122 millimeters；
Described straight line (CD) is the line of the interior end points of described initial circular arc (AC) (C) and described 4th circular arc (DB) interior end points (D).
Scroll plate the most according to claim 1, it is characterised in that: described initial circular arc (AC) outer end points (A) coordinate is: x=
8.1391 millimeter, y=9.569 millimeter；Described initial circular arc (AC) interior end points (C) coordinate is: x=5.2482 millimeter, y=4.322 milli
Rice；
Described first circular arc (EF) interior end points (E) coordinate is: x=4.2176 millimeter, y=-29.5 millimeter；Described first circular arc (EF)
Outer end points (F) coordinate is: x=47.5003 millimeter, y=33.9955 millimeter；
Described second circular arc (FG) outer end points (G) coordinate is: x=-4.2176 millimeter, y=69.25 millimeter；
Described three-arc (QR) interior end points (Q) coordinate is: x=-23.5478 millimeter, y=-106.426 millimeter；Described 3rd circle
Arc (QR) outer end points (R) coordinate is: x=67.4228 millimeter, y=-85.649 millimeter；
Described 4th circular arc (DB) interior end points (D) coordinate is: x=-5.9351 millimeter, y=3.8737 millimeter；Described 4th circular arc
(DB) outer end points (B) coordinate is: x=-15.444 millimeter, y=-11.1374 millimeter；
Described 5th circular arc (IJ) interior end points (I) coordinate is: x=-4.2176 millimeter, y=36.75 millimeter；Described 5th circular arc
(IJ) outer end points (J) coordinate is: x=-54.2487 millimeter, y=-36.6454 millimeter；
Outer end points (K) coordinate of described 6th circular arc is: x=4.2176 millimeter, y=-76.5 millimeter；
Described second involute (GH) outer end points (H) coordinate is: x=-65.0004 millimeter, y=74.2636 millimeters；
Described 3rd involute (PQ) interior end points (P) coordinate is: x=-68.6703 millimeter, y=72.4997 millimeters；
Described 5th involute (KL) outer end points (L) coordinate is: x=65.5116 millimeter, y=-82.9935 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310644795.5A CN104121197B (en) | 2013-12-05 | 2013-12-05 | Scroll plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310644795.5A CN104121197B (en) | 2013-12-05 | 2013-12-05 | Scroll plate |
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| Publication Number | Publication Date |
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| CN104121197A CN104121197A (en) | 2014-10-29 |
| CN104121197B true CN104121197B (en) | 2016-08-31 |
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| CN201310644795.5A Active CN104121197B (en) | 2013-12-05 | 2013-12-05 | Scroll plate |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438355B (en) * | 2016-10-10 | 2018-10-23 | 中国石油大学(华东) | A kind of gradual change wall thickness scroll wrap engaged entirely |
| CN106194749B (en) * | 2016-10-10 | 2018-06-01 | 中国石油大学(华东) | A kind of gradual change wall thickness binary vortices tooth engaged entirely |
| CN107829784B (en) * | 2017-05-12 | 2020-03-27 | 南昌大学 | Vortex disk of vortex expander |
| CN107178499B (en) * | 2017-05-15 | 2019-07-26 | 南昌大学 | A kind of scroll machine discharge capacity molded line modification method |
| CN108708853A (en) * | 2018-04-23 | 2018-10-26 | 河北昊方新能源科技有限公司 | The scroll type air compressor of air-cooled oil-free |
| CN108443141B (en) * | 2018-05-07 | 2024-05-03 | 南昌大学 | Vortex tooth-shaped line structure of vortex compressor adopting asymmetric double-arc correction |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001234878A (en) * | 2000-02-21 | 2001-08-31 | Kimie Nakamura | Scroll fluid machine |
| CN2607454Y (en) * | 2003-01-29 | 2004-03-24 | 柳州第二空气压缩机总厂 | Vortex fluid machinery |
| CN1312406C (en) * | 2004-05-12 | 2007-04-25 | 重庆大学 | Whirlpool compressor |
| CN102628439A (en) * | 2011-12-05 | 2012-08-08 | 兰州理工大学 | Scroll wraps of scroll plates for scroll compressor and generation method of molded lines |
| CN102493848B (en) * | 2011-12-23 | 2013-04-17 | 山东大学 | Vortex disc of vortex expander |
| CN203614411U (en) * | 2013-12-05 | 2014-05-28 | 柳州易舟汽车空调有限公司 | Scroll plate |
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