CN204041460U

CN204041460U - A kind of rotor combination of 20-30 horsepower double-screw air compressor

Info

Publication number: CN204041460U
Application number: CN201420185423.0U
Authority: CN
Inventors: 刘连科
Original assignee: XIAMEN EAST ASIA MACHINERY CO Ltd
Current assignee: Xiamen East Asia Machinery Industrial Co ltd
Priority date: 2014-04-16
Filing date: 2014-04-16
Publication date: 2014-12-24
Anticipated expiration: 2024-04-16

Abstract

The rotor combination of a kind of 20-30 horsepower of the utility model double-screw air compressor, relates to the air compressing assembly of air compressor.This rotor combination has a pair intermeshing female rotor and male rotor, and female rotor establishes 6 left-handed teeth, and male rotor establishes the tooth of 5 dextrorotation; The coordinate resolution value of composition female rotor profile of tooth each section of curved section is, the 1st point: X=-27.169, Y=-32.648; 293rd point: X=14.203, Y=-40.000; The coordinate resolution value of composition male rotor profile of tooth each section of curved section is, the 1st point: X=-0.000, Y=53.768; 298th point: X=51.136, Y=16.615.Its female rotor and male rotor molded line containing isolated point and straight line, do not have good combination property; Noise is low; Easy processing, easy to use.

Description

A kind of rotor combination of 20-30 horsepower double-screw air compressor

Technical field

The utility model relates to a kind of air compressing assembly of air compressor.

Background technique

Double-screw air compressor utilizes female rotor, the continuous output squeezing air of male rotor of conjugation engagement running in cavity.The feature of female rotor, male rotor profile determines performance and the efficiency of compressor.The manufacturer of present double-screw air compressor is all devoted to the molded line research of yin, yang rotor flute profile, it is ZL200820056997.2 that such as Chinese utility model patent specification CN201180654Y discloses the patent No., name is called the technological scheme of " screw rotor of double-screw air compressor ", proposes this screw rotor and comprises a pair intermeshing female rotor and male rotor; Wherein: female rotor establishes 6 teeth, the top circle of its profile from the top circle of a tooth to next tooth is made up of three circular arc lines, arc envelope line, straight line (junction of this arc envelope line and this straight line is isolated point), a cycloid and two circular arc lines in turn; Male rotor establishes 4 teeth, and its root circle of profile from the root circle of a tooth to next tooth is made up of two arc envelope lines, two circular arc lines, two cycloids, a circular arc line (junction of a rear cycloid and this circular arc line is isolated point) and circular arc lines in turn.The document discloses the coordinate resolution value of composition female rotor profile of tooth each section of curved section and the coordinate resolution value of composition male rotor profile of tooth each section of curved section.Technological scheme disclosed in the document has can reduce fluid dynamic loss and reduction noise, and leakage triangle area is little.Laterally reveal the advantages such as little; But its female rotor and male rotor molded line contain isolated point, and even straight line, not easily processes.

Model utility content

The utility model aims to provide a kind of female rotor and male rotor molded line containing the rotor combination of the 20-30 horsepower double-screw air compressor of isolated point and straight line, easily processing.

The technical solution of the utility model is: a kind of rotor combination of 20-30 horsepower double-screw air compressor, has a pair intermeshing female rotor and male rotor, and female rotor establishes 6 left-handed teeth, and male rotor establishes the tooth of 5 dextrorotation; The coordinate resolution value of composition female rotor profile of tooth each section of curved section is:

1st point: X=-27.169 Y=-32.648; 2nd point: X=-27.026 Y=-32.756; 3rd point: X=-26.891 Y=-32.853; 4th point: X=-26.770 Y=-32.937; 5th point: X=-26.622 Y=-33.030; 6th point: X=-26.459 Y=-33.129; 7th point: X=-26.311 Y=-33.211; 8th point: X=-26.134 Y=-33.304; 9th point: X=-25.956 Y=-33.388; 10th point: X=-25.789 Y=-33.462; 11st point: X=-25.642 Y=-33.523; 12nd point: X=-25.435 Y=-33.599; 13rd point: X=-25.227 Y=-33.668; 14th point: X=-25.018 Y=-33.731; 15th point: X=-24.817 Y=-33.781; 16th point: X=-24.631 Y=-33.822; 17th point: X=-24.482 Y=-33.851; 18th point: X=-24.264 Y=-33.887; 19th point: X=-24.044 Y=-33.913; 20th point: X=-23.837 Y=-33.929; 21st point: X=-23.653 Y=-33.939; 22nd point: X=-23.466 Y=-33.943; 23rd point: X=-23.307 Y=-33.942; 24th point: X=-23.145 Y=-33.937; 25th point: X=-22.999 Y=-33.929; 26th point: X=-22.862 Y=-33.917; 27th point: X=-22.619 Y=-33.892; 28th point: X=-22.439 Y=-33.866; 29th point: X=-22.251 Y=-33.833; 30th point: X=-22.052 Y=-33.791; 31st point: X=-21.869 Y=-33.746; 32nd point: X=-21.633 Y=-33.679; 33rd point: X=-21.443 Y=-33.618; 34th point: X=-21.241 Y=-33.545; 35th point: X=-21.059 Y=-33.473; 36th point: X=-20.842 Y=-33.377; 37th point: X=-20.615 Y=-33.265; 38th point: X=-20.415 Y=-33.158;39th point: X=-20.198 Y=-33.029; 40th point: X=-19.971 Y=-32.882; 41st point: X=-19.762 Y=-32.732; 42nd point: X=-19.554 Y=-32.570; 43rd point: X=-19.394 Y=-32.435; 44th point: X=-19.203 Y=-32.260; 45th point: X=-19.046 Y=-32.105; 46th point: X=-18.788 Y=-31.843; 47th point: X=-18.666 Y=-31.710; 48th point: X=-18.540 Y=-31.576; 49th point: X=-18.281 Y=-31.305; 50th point: X=-18.152 Y=-31.171; 51st point: X=-18.021 Y=-31.037; 52nd point: X=-17.838 Y=-30.848; 53rd point: X=-17.669 Y=-30.676; 54th point: X=-17.518 Y=-30.524; 55th point: X=-17.371 Y=-30.380; 56th point: X=-17.281 Y=-30.290; 57th point: X=-17.098 Y=-30.111; 58th point: X=-16.976 Y=-29.993; 59th point: X=-16.833 Y=-29.855; 60th point: X=-16.691 Y=-29.719; 61st point: X=-16.564 Y=-29.598; 62nd point: X=-16.439 Y=-29.483; 63rd point: X=-16.306 Y=-29.359; 64th point: X=-16.204 Y=-29.263; 65th point: X=-16.046 Y=-29.116; 66th point: X=-15.892 Y=-28.978; 67th point: X=-15.761 Y=-28.861; 68th point: X=-15.650 Y=-28.764; 69th point: X=-15.473 Y=-28.611; 70th point: X=-15.334 Y=-28.488; 71st point: X=-15.237 Y=-28.401; 72nd point: X=-15.046 Y=-28.240; 73rd point: X=-14.881 Y=-28.097; 74th point: X=-14.743 Y=-27.976; 75th point: X=-14.602 Y=-27.856; 76th point: X=-14.467 Y=-27.747;77th point: X=-14.181 Y=-27.513; 78th point: X=-13.917 Y=-27.296; 79th point: X=-13.692 Y=-27.119; 80th point: X=-13.475 Y=-26.951; 81st point: X=-13.233 Y=-26.759; 82nd point: X=-13.042 Y=-26.616; 83rd point: X=-12.898 Y=-26.505; 84th point: X=-12.756 Y=-26.398; 85th point: X=-12.488 Y=-26.200; 86th point: X=-12.316 Y=-26.073; 87th point: X=-12.184 Y=-25.973; 88th point: X=-12.033 Y=-25.866; 89th point: X=-11.888 Y=-25.762; 90th point: X=-11.749 Y=-25.663; 91st point: X=-11.592 Y=-25.554; 92nd point: X=-11.430 Y=-25.442; 93rd point: X=-11.281 Y=-25.341; 94th point: X=-11.134 Y=-25.242; 95th point: X=-10.987 Y=-25.142; 96th point: X=-10.827 Y=-25.038; 97th point: X=-10.680 Y=-24.941; 98th point: X=-10.512 Y=-24.831; 99th point: X=-10.369 Y=-24.739; 100th point: X=-10.225 Y=-24.649; 101st point: X=-10.102 Y=-24.573; 102nd point: X=-9.957 Y=-24.484; 103rd point: X=-9.811 Y=-24.398; 104th point: X=-9.662 Y=-24.311; 105th point: X=-9.513 Y=-24.225; 106th point: X=-9.364 Y=-24.142; 107th point: X=-9.215 Y=-24.061; 108th point: X=-9.065 Y=-23.980; 109th point: X=-8.913 Y=-23.900; 110th point: X=-8.762 Y=-23.822; 111st point: X=-8.611 Y=-23.746; 112nd point: X=-8.457 Y=-23.670; 113rd point: X=-8.306 Y=-23.597; 114th point: X=-8.150 Y=-23.524;115th point: X=-7.997 Y=-23.453; 116th point: X=-7.838 Y=-23.382; 117th point: X=-7.682 Y=-23.313; 118th point: X=-7.523 Y=-23.245; 119th point: X=-7.366 Y=-23.179; 120th point: X=-7.209 Y=-23.115; 121st point: X=-7.048 Y=-23.052; 122nd point: X=-6.891 Y=-22.991; 123rd point: X=-6.733 Y=-22.931; 124th point: X=-6.571 Y=-22.871; 125th point: X=-6.409 Y=-22.814; 126th point: X=-6.244 Y=-22.756; 127th point: X=-6.084 Y=-22.702; 128th point: X=-5.918 Y=-22.648; 129th point: X=-5.749 Y=-22.594; 130th point: X=-5.586 Y=-22.544; 131st point: X=-5.423 Y=-22.495; 132nd point: X=-5.259 Y=-22.448; 133rd point: X=-5.095 Y=-22.402; 134th point: X=-4.933 Y=-22.358; 135th point: X=-4.768 Y=-22.315; 136th point: X=-4.603 Y=-22.274; 137th point: X=-4.436 Y=-22.234; 138th point: X=-4.267 Y=-22.194; 139th point: X=-4.100 Y=-22.157; 140th point: X=-3.934 Y=-22.121; 141st point: X=-3.765 Y=-22.087; 142nd point: X=-3.597 Y=-22.054; 143rd point: X=-3.428 Y=-22.022; 144th point: X=-3.259 Y=-21.992; 145th point: X=-3.081 Y=-21.963; 146th point: X=-2.910 Y=-21.936; 147th point: X=-2.744 Y=-21.911; 148th point: X=-2.574 Y=-21.887; 149th point: X=-2.405 Y=-21.864; 150th point: X=-2.236 Y=-21.844; 151st point: X=-2.064 Y=-21.824; 152nd point: X=-1.896 Y=-21.807;153rd point: X=-1.729 Y=-21.790; 154th point: X=-1.559 Y=-21.776; 155th point: X=-1.388 Y=-21.762; 156th point: X=-1.215 Y=-21.750; 157th point: X=-1.044 Y=-21.740; 158th point: X=-0.872 Y=-21.731; 159th point: X=-0.701 Y=-21.724; 160th point: X=-0.532 Y=-21.718; 161st point: X=-0.359 Y=-21.713; 162nd point: X=-0.179 Y=-21.711; 163rd point: X=-0.001 Y=-21.709; 164th point: X=0.185 Y=-21.711; 165th point: X=0.372 Y=-21.717; 166th point: X=0.559 Y=-21.727; 167th point: X=0.746 Y=-21.740; 168th point: X=1.024 Y=-21.764; 169th point: X=1.302 Y=-21.794; 170th point: X=1.555 Y=-21.829; 171st point: X=1.808 Y=-21.870; 172nd point: X=2.196 Y=-21.943 the 173rd point: X=2.417 Y=-21.993; 174th point: X=2.638 Y=-22.048; 175th point: X=2.845 Y=-22.102; 176th point: X=3.044 Y=-22.158; 177th point: X=3.250 Y=-22.223; 178th point: X=3.454 Y=-22.292; 179th point: X=3.654 Y=-22.364; 180th point: X=3.854 Y=-22.435; 181st point: X=4.054 Y=-22.517; 182nd point: X=4.253 Y=-22.600; 183rd point: X=4.448 Y=-22.686; 184th point: X=4.643 Y=-22.775; 185th point: X=4.842 Y=-22.873; 186th point: X=5.030 Y=-22.971; 187th point: X=5.218 Y=-23.071; 188th point: X=5.405 Y=-23.175; 189th point: X=5.595 Y=-23.286; 190th point: X=5.784 Y=-23.403; 191st point: X=5.968 Y=-23.519;192nd point: X=6.151 Y=-23.640; 193rd point: X=6.332 Y=-23.765; 194th point: X=6.511 Y=-23.895; 195th point: X=6.879 Y=-24.173; 196th point: X=7.049 Y=-24.310; 197th point: X=7.218 Y=-24.452; 198th point: X=7.474 Y=-24.678; 199th point: X=7.660 Y=-24.851; 200th point: X=7.845 Y=-25.031; 201st point: X=8.041 Y=-25.222; 202nd point: X=8.236 Y=-25.420; 203rd point: X=8.493 Y=-25.693; 204th point: X=8.771 Y=-26.012; 205th point: X=8.930 Y=-26.205; 206th point: X=9.083 Y=-26.397; 207th point: X=9.225 Y=-26.581; 208th point: X=9.362 Y=-26.764; 209th point: X=9.501 Y=-26.957; 210th point: X=9.633 Y=-27.149; 211st point: X=9.765 Y=-27.344; 212nd point: X=9.891 Y=-27.538; 213rd point: X=10.019 Y=-27.743; 214th point: X=10.142 Y=-27.946; 215th point: X=10.262 Y=-28.150; 216th point: X=10.379 Y=-28.358; 217th point: X=10.497 Y=-28.574; 218th point: X=10.609 Y=-28.788; 219th point: X=10.719 Y=-29.005; 220th point: X=10.825 Y=-29.221; 221st point: X=10.930 Y=-29.447; 222nd point: X=11.031 Y=-29.671; 223rd point: X=11.129 Y=-29.898; 224th point: X=11.223 Y=-30.123; 225th point: X=11.315 Y=-30.358; 226th point: X=11.406 Y=-30.594; 227th point: X=11.493 Y=-30.829; 228th point: X=11.575 Y=-31.063; 229th point: X=11.734 Y=-31.554; 230th point: X=11.809 Y=-31.799;231st point: X=11.879 Y=-32.044; 232nd point: X=11.948 Y=-32.297; 233rd point: X=12.013 Y=-32.549; 234th point: X=12.075 Y=-32.803; 235th point: X=12.133 Y=-33.056; 236th point: X=12.189 Y=-33.318; 237th point: X=12.241 Y=-33.578; 238th point: X=12.288 Y=-33.827; 239th point: X=12.331 Y=-34.076; 240th point: X=12.376 Y=-34.358; 241st point: X=12.418 Y=-34.638; 242nd point: X=12.455 Y=-34.907; 243rd point: X=12.487 Y=-35.175; 244th point: X=12.517 Y=-35.452; 245th point: X=12.542 Y=-35.727; 246th point: X=12.564 Y=-35.997; 247th point: X=12.582 Y=-36.267; 248th point: X=12.598 Y=-36.560; 249th point: X=12.608 Y=-36.793; 250th point: X=12.614 Y=-36.967; 251st point: X=12.619 Y=-37.141; 252nd point: X=12.623 Y=-37.418; 253rd point: X=12.624 Y=-37.620; 254th point: X=12.622 Y=-37.821; 255th point: X=12.620 Y=-37.988; 256th point: X=12.617 Y=-38.147; 257th point: X=12.612 Y=-38.306; 258th point: X=12.602 Y=-38.553; 259th point: X=12.602 Y=-38.622; 260th point: X=12.604 Y=-38.685; 261st point: X=12.608 Y=-38.741; 262nd point: X=12.614 Y=-38.798; 263rd point: X=12.624 Y=-38.859; 264th point: X=12.637 Y=-38.918; 265th point: X=12.654 Y=-38.986; 266th point: X=12.671 Y=-39.044; 267th point: X=12.692 Y=-39.104; 268th point: X=12.716 Y=-39.163;269th point: X=12.750 Y=-39.237; 270th point: X=12.789 Y=-39.309; 271st point: X=12.827 Y=-39.371; 272nd point: X=12.868 Y=-39.431; 273rd point: X=12.904 Y=-39.479; 274th point: X=12.952 Y=-39.537; 275th point: X=13.005 Y=-39.593; 276th point: X=13.057 Y=-39.644; 277th point: X=13.108 Y=-39.688; 278th point: X=13.159 Y=-39.729; 279th point: X=13.208 Y=-39.764; 280th point: X=13.283 Y=-39.813; 281st point: X=13.347 Y=-39.849; 282nd point: X=13.413 Y=-39.882; 283rd point: X=13.481 Y=-39.911; 284th point: X=13.550 Y=-39.937; 285th point: X=13.620 Y=-39.959; 286th point: X=13.691 Y=-39.977; 287th point: X=13.763 Y=-39.992; 288th point: X=13.836 Y=-40.003; 289th point: X=13.909 Y=-40.010; 290th point: X=13.983 Y=-40.013; 291st point: X=14.056 Y=-40.012; 292nd point: X=14.130 Y=-40.008; 293rd point: X=14.203 Y=-40.000;

The coordinate resolution value of composition male rotor profile of tooth each section of curved section is,

1st point: X=-0.000 Y=53.768; 2nd point: X=0.115 Y=53.765; 3rd point: X=0.229 Y=53.757; 4th point: X=0.320 Y=53.746; 5th point: X=0.413 Y=53.731; 6th point: X=0.514 Y=53.711; 7th point: X=0.602 Y=53.690; 8th point: X=0.685 Y=53.666; 9th point: X=0.765 Y=53.640; 10th point: X=0.850 Y=53.609; 11st point: X=0.934 Y=53.574; 12nd point: X=1.035 Y=53.528; 13rd point: X=1.122 Y=53.483; 14th point: X=1.199 Y=53.440; 15th point: X=1.281 Y=53.389; 16th point: X=1.356 Y=53.338; 17th point: X=1.431 Y=53.283; 18th point: X=1.560 Y=53.181; 19th point: X=1.689 Y=53.078; 20th point: X=1.816 Y=52.975; 21st point: X=1.942 Y=52.871; 22nd point: X=2.165 Y=52.687; 23rd point: X=2.387 Y=52.501; 24th point: X=2.605 Y=52.316; 25th point: X=2.823 Y=52.129; 26th point: X=3.030 Y=51.950; 27th point: X=3.236 Y=51.769; 28th point: X=3.440 Y=51.586; 29th point: X=3.643 Y=51.402; 30th point: X=3.840 Y=51.221; 31st point: X=4.035 Y=51.038; 32nd point: X=4.230 Y=50.852; 33rd point: X=4.425 Y=50.665; 34th point: X=4.614 Y=50.481; 35th point: X=4.802 Y=50.296; 36th point: X=4.995 Y=50.102; 37th point: X=5.171 Y=49.925; 38th point: X=5.355 Y=49.740; 39th point: X=5.533 Y=49.551; 40th point: X=5.707 Y=49.367; 41st point: X=5.876 Y=49.185; 42nd point: X=6.044 Y=49.001; 43rd point: X=6.212 Y=48.813;44th point: X=6.376 Y=48.627; 45th point: X=6.539 Y=48.439; 46th point: X=6.697 Y=48.255; 47th point: X=6.855 Y=48.068; 48th point: X=7.009 Y=47.882; 49th point: X=7.163 Y=47.694; 50th point: X=7.312 Y=47.511; 51st point: X=7.460 Y=47.324; 52nd point: X=7.606 Y=47.137; 53rd point: X=7.749 Y=46.952; 54th point: X=7.887 Y=46.769; 55th point: X=8.026 Y=46.584; 56th point: X=8.162 Y=46.399; 57th point: X=8.296 Y=46.213; 58th point: X=8.425 Y=46.033; 59th point: X=8.555 Y=45.848; 60th point: X=8.681 Y=45.665; 61st point: X=8.807 Y=45.481; 62nd point: X=8.928 Y=45.300; 63rd point: X=9.049 Y=45.116; 64th point: X=9.165 Y=44.937; 65th point: X=9.281 Y=44.755; 66th point: X=9.394 Y=44.575; 67th point: X=9.504 Y=44.398; 68th point: X=9.614 Y=44.217; 69th point: X=9.720 Y=44.039; 70th point: X=9.924 Y=43.688; 71st point: X=10.125 Y=43.332; 72nd point: X=10.311 Y=42.989; 73rd point: X=10.496 Y=42.638; 74th point: X=10.667 Y=42.298; 75th point: X=10.834 Y=41.957; 76th point: X=10.989 Y=41.626; 77th point: X=11.141 Y=41.290; 78th point: X=11.282 Y=40.965; 79th point: X=11.418 Y=40.639; 80th point: X=11.544 Y=40.323; 81st point: X=11.665 Y=40.008; 82nd point: X=11.777 Y=39.699; 83rd point: X=11.885 Y=39.391; 84th point: X=11.983 Y=39.096; 85th point: X=12.079 Y=38.793;86th point: X=12.165 Y=38.508; 87th point: X=12.248 Y=38.216; 88th point: X=12.321 Y=37.944; 89th point: X=12.391 Y=37.665; 90th point: X=12.454 Y=37.398; 91st point: X=12.514 Y=37.131; 92nd point: X=12.566 Y=36.879; 93rd point: X=12.615 Y=36.622; 94th point: X=12.657 Y=36.386; 95th point: X=12.697 Y=36.137; 96th point: X=12.731 Y=35.902; 97th point: X=12.761 Y=35.677; 98th point: X=12.785 Y=35.466; 99th point: X=12.808 Y=35.242; 100th point: X=12.841 Y=34.833; 101st point: X=12.852 Y=34.642; 102nd point: X=12.860 Y=34.450; 103rd point: X=12.865 Y=34.272; 104th point: X=12.868 Y=34.095; 105th point: X=12.868 Y=33.930; 106th point: X=12.866 Y=33.766; 107th point: X=12.861 Y=33.615; 108th point: X=12.855 Y=33.464; 109th point: X=12.847 Y=33.325; 110th point: X=12.837 Y=33.191; 111st point: X=12.827 Y=33.077; 112nd point: X=12.814 Y=32.944; 113rd point: X=12.801 Y=32.835; 114th point: X=12.783 Y=32.727; 115th point: X=12.766 Y=32.625; 116th point: X=12.740 Y=32.484; 117th point: X=12.708 Y=32.316; 118th point: X=12.687 Y=32.221; 119th point: X=12.656 Y=32.090; 120th point: X=12.633 Y=31.987; 121st point: X=12.611 Y=31.893; 122nd point: X=12.594 Y=31.813; 123rd point: X=12.581 Y=31.745; 124th point: X=12.572 Y=31.685; 125th point: X=12.565 Y=31.623;126th point: X=12.560 Y=31.54; 127th point: X=12.558 Y=31.476; 128th point: X=12.560 Y=31.404; 129th point: X=12.566 Y=31.322; 130th point: X=12.575 Y=31.248; 131st point: X=12.590 Y=31.170; 132nd point: X=12.618 Y=31.055; 133rd point: X=12.658 Y=30.944; 134th point: X=12.714 Y=30.816; 135th point: X=12.759 Y=30.735; 136th point: X=12.815 Y=30.648; 137th point: X=12.870 Y=30.572; 138th point: X=12.934 Y=30.497; 139th point: X=13.010 Y=30.422; 140th point: X=13.093 Y=30.351; 141st point: X=13.173 Y=30.292; 142nd point: X=13.277 Y=30.228; 143rd point: X=13.366 Y=30.184; 144th point: X=13.605 Y=30.081; 145th point: X=13.887 Y=29.970; 146th point: X=14.139 Y=29.879; 147th point: X=14.275 Y=29.835; 148th point: X=14.433 Y=29.790; 149th point: X=14.665 Y=29.733; 150th point: X=14.879 Y=29.686; 151st point: X=15.182 Y=29.630; 152nd point: X=15.533 Y=29.571; 153rd point: X=15.700 Y=29.550; 154th point: X=15.855 Y=29.535; 155th point: X=16.203 Y=29.513; 156th point: X=16.362 Y=29.506; 157th point: X=16.499 Y=29.503; 158th point: X=16.624 Y=29.502; 159th point: X=16.757 Y=29.503; 160th point: X=17.017 Y=29.511; 161st point: X=17.287 Y=29.524; 162nd point: X=17.583 Y=29.545; 163rd point: X=17.781 Y=29.563; 164th point: X=17.962 Y=29.586; 165th point: X=18.234 Y=29.626;166th point: X=18.395 Y=29.653; 167th point: X=18.686 Y=29.706; 168th point: X=19.108 Y=29.790; 169th point: X=19.579 Y=29.893; 170th point: X=19.996 Y=29.997; 171st point: X=20.412 Y=30.107; 172nd point: X=20.819 Y=30.218; 173rd point: X=21.220 Y=30.328; 174th point: X=21.620 Y=30.438; 175th point: X=22.024 Y=30.548; 176th point: X=22.437 Y=30.657; 177th point: X=22.682 Y=30.720; 178th point: X=22.944 Y=30.785; 179th point: X=23.126 Y=30.830; 180th point: X=23.379 Y=30.890; 181st point: X=23.702 Y=30.963; 182nd point: X=24.021 Y=31.034; 183rd point: X=24.301 Y=31.092; 184th point: X=24.498 Y=31.132; 185th point: X=24.784 Y=31.187; 186th point: X=25.014 Y=31.230; 187th point: X=25.393 Y=31.301; 188th point: X=25.664 Y=31.345; 189th point: X=25.932 Y=31.386; 190th point: X=26.228 Y=31.428; 191st point: X=26.524 Y=31.465; 192nd point: X=26.729 Y=31.489; 193rd point: X=26.935 Y=31.511; 194th point: X=27.136 Y=31.531; 195th point: X=27.337 Y=31.549; 196th point: X=27.583 Y=31.569; 197th point: X=27.829 Y=31.585; 198th point: X=28.077 Y=31.598; 199th point: X=28.325 Y=31.608; 200th point: X=28.589 Y=31.616; 201st point: X=28.853 Y=31.620; 202nd point: X=29.114 Y=31.620; 203rd point: X=29.375 Y=31.618; 204th point: X=29.655 Y=31.612; 205th point: X=29.934 Y=31.603;206th point: X=30.209 Y=31.589; 207th point: X=30.485 Y=31.571; 208th point: X=30.803 Y=31.548; 209th point: X=31.120 Y=31.520; 210th point: X=31.386 Y=31.492; 211st point: X=31.652 Y=31.461; 212nd point: X=31.999 Y=31.417; 213rd point: X=32.346 Y=31.368; 214th point: X=32.610 Y=31.326; 215th point: X=32.873 Y=31.281; 216th point: X=33.191 Y=31.223; 217th point: X=33.509 Y=31.162; 218th point: X=33.827 Y=31.094; 219th point: X=34.144 Y=31.022; 220th point: X=34.444 Y=30.952; 221st point: X=34.743 Y=30.878; 222nd point: X=35.023 Y=30.802; 223rd point: X=35.301 Y=30.723; 224th point: X=35.728 Y=30.597; 225th point: X=36.152 Y=30.465; 226th point: X=36.570 Y=30.326; 227th point: X=36.985 Y=30.181; 228th point: X=37.289 Y=30.072; 229th point: X=37.591 Y=29.959; 230th point: X=37.903 Y=29.834; 231st point: X=38.212 Y=29.706; 232nd point: X=38.597 Y=29.543; 233rd point: X=38.979 Y=29.373; 234th point: X=39.306 Y=29.221; 235th point: X=39.630 Y=29.064; 236th point: X=40.005 Y=28.878; 237th point: X=40.377 Y=28.687; 238th point: X=40.721 Y=28.498; 239th point: X=41.065 Y=28.310; 240th point: X=41.437 Y=28.098; 241st point: X=41.804 Y=27.881; 242nd point: X=42.158 Y=27.662; 243rd point: X=42.508 Y=27.437; 244th point: X=42.841 Y=27.220; 245th point: X=43.169 Y=26.999;246th point: X=43.561 Y=26.723; 247th point: X=43.949 Y=26.442; 248th point: X=44.198 Y=26.258; 249th point: X=44.444 Y=26.073; 250th point: X=44.677 Y=25.890; 251st point: X=44.907 Y=25.703; 252nd point: X=45.063 Y=25.573; 253rd point: X=45.218 Y=25.442; 254th point: X=45.397 Y=25.286; 255th point: X=45.576 Y=25.128; 256th point: X=45.823 Y=24.904 the 257th point: X=45.952 Y=24.784; 258th point: X=46.079 Y=24.664; 259th point: X=46.182 Y=24.565; 260th point: X=46.284 Y=24.465; 261st point: X=46.502 Y=24.247; 262nd point: X=46.704 Y=24.039; 263rd point: X=46.902 Y=23.829; 264th point: X=47.107 Y=23.605; 265th point: X=47.289 Y=23.398; 266th point: X=47.520 Y=23.128; 267th point: X=47.745 Y=22.854; 268th point: X=47.922 Y=22.631; 269th point: X=48.106 Y=22.392; 270th point: X=48.301 Y=22.132; 271st point: X=48.482 Y=21.880; 272nd point: X=48.655 Y=21.634; 273rd point: X=48.826 Y=21.381; 274th point: X=48.994 Y=21.124; 275th point: X=49.146 Y=20.883; 276th point: X=49.249 Y=20.715; 277th point: X=49.350 Y=20.547; 278th point: X=49.449 Y=20.377; 279th point: X=49.546 Y=20.206; 280th point: X=49.624 Y=20.068; 281st point: X=49.701 Y=19.929; 282nd point: X=49.776 Y=19.790; 283rd point: X=49.850 Y=19.650; 284th point: X=49.989 Y=19.381; 285th point: X=50.122 Y=19.111;286th point: X=50.222 Y=18.902; 287th point: X=50.319 Y=18.692; 288th point: X=50.406 Y=18.503; 289th point: X=50.490 Y=18.319; 290th point: X=50.575 Y=18.121; 291st point: X=50.655 Y=17.928; 292nd point: X=50.737 Y=17.725; 293rd point: X=50.832 Y=17.478; 294th point: X=50.898 Y=17.302; 295th point: X=50.962 Y=17.125; 296th point: X=51.027 Y=16.938; 297th point: X=51.090 Y=16.756; 298th point: X=51.136 Y=16.615;

On described female rotor, each tooth is provided with tooth top circular arc ab, connection circular arc bc, arc envelope line cd, arc envelope line de, arc envelope line ef, pendulum point protection circular arc fg; On described male rotor, each tooth is provided with circular arc corresponding with each circular arc of each tooth on above-mentioned female rotor respectively: tooth root circular arc AB, arc envelope line BC, transition arc CD, tooth top circular arc DE, put point protection circular arc EF, arc envelope line FG.

The rotor combination of the utility model 20-30 horsepower double-screw air compressor, owing to adopting above-mentioned the moon, the molded line structure of the coordinate value formation of male rotor, make the utility model cloudy, sealability between male rotor inter-tooth volume, pressurized gas are stoped to leak to low voltage terminal by three wider sealing strips, it is less leakage triangle, whole tooth curve is by circular arc and arc envelope line composition, not point and straight line, and all tie points are all rounding ofves is streamlined, resistance of air is little, all cycloids form point has circular arc to protect, to sum up told this patent model utility molded line has good combination property, noise is low, easily roll, milling, mill processing, easy transport, stores, assembling.

Accompanying drawing explanation

Fig. 1 is the end-face structure schematic diagram of a rotor set unification embodiment of the utility model 20-30 horsepower double-screw air compressor.

Fig. 2 is the close-up schematic view in T portion in Fig. 1.

Embodiment

The end-face structure of a rotor set unification embodiment of the utility model 20-30 horsepower double-screw air compressor, as shown in Figure 1, this rotor combination is a pair intermeshing female rotor 1 and male rotor 2, the end-face structure of this rotor combination, as shown in Figure 1.Female rotor 1 establishes 6 left-handed teeth, and male rotor 2 establishes the tooth of 5 dextrorotation.On female rotor 1, on the helix angle numerical value of each tooth and male rotor 2, the helix angle numerical value of each tooth is 46.247 °; On female rotor 1, on the length of toothed region and male rotor 2, the length of toothed region is 72.126 millimeters; The tooth depth of male rotor 2 is 20.7655 millimeters, and the tooth depth of female rotor 1 is 20.7557 millimeters.The external diameter of female rotor 1 is 84.8938 millimeters, and the external diameter of male rotor 2 is 107.5786 millimeters.The pitch diameter of female rotor 1 is 82.4085 millimeters, and the pitch diameter of male rotor 2 is 68.6737 millimeters.The Root diameter of female rotor 1 is 43.3823 millimeters, and the Root diameter of male rotor 2 is 66.0476 millimeters.Centre distance between female rotor 1 and male rotor 2 is 75.5411 millimeters.

The coordinate resolution value of composition female rotor 1 profile of tooth each section of curved section is,

The coordinate resolution value of composition male rotor 2 profile of tooth each section of curved section is,

Adopt the molded line structure that the coordinate value of above-mentioned yin, yang rotor is formed, as shown in Figure 2: on female rotor 1, each tooth is provided with tooth top circular arc ab, connection circular arc bc, arc envelope line cd, arc envelope line de, arc envelope line ef, pendulum point protection circular arc fg.On male rotor 2, each tooth is provided with circular arc corresponding with each circular arc of each tooth on above-mentioned female rotor 1 respectively, tooth root circular arc AB, arc envelope line BC, transition arc CD, tooth top circular arc DE, pendulum point protection circular arc EF, arc envelope line FG.

Sealability between female rotor 1 and male rotor 2 between cog, volume, pressurized gas are stoped to leak to low voltage terminal by three wider sealing strips, and selected less leakage triangle, whole tooth curve is by circular arc and arc envelope line composition, and each tooth curve has stopped isolated point and straight line.Be not a linear sealing in above-mentioned molded line engagement process but realize multi-sealed to the flank of tooth of the flank of tooth in several region completely, adopt comparatively small arc-shaped excessive, leakage triangle is little, leaks few.Male rotor 2 tooth top three-arc connects, and female rotor 1 tooth top three-arc engages with arc envelope line entirely.The all tie points of molded line of female rotor 1 and male rotor 2 are all rounding ofves is streamlined, and all cycloids form point has circular arc to protect.

The above, be only the utility model preferred embodiment, do not limit the scope of the utility model enforcement with this, and the equivalence done according to the technical solution of the utility model and description change and modification, all should belong to the scope that the utility model is contained.

Claims

1. a rotor combination for 20-30 horsepower double-screw air compressor, has a pair intermeshing female rotor and male rotor, it is characterized in that: female rotor establishes 6 left-handed teeth, and male rotor establishes the tooth of 5 dextrorotation; The coordinate resolution value of composition female rotor profile of tooth each section of curved section is,

On described female rotor, each tooth is provided with tooth top circular arc (ab), connection circular arc (bc), arc envelope line (cd), arc envelope line (de), arc envelope line (ef), pendulum point protection circular arc (fg); On described male rotor, each tooth is provided with circular arc corresponding with each circular arc of each tooth on above-mentioned female rotor respectively: tooth root circular arc (AB), arc envelope line (BC), transition arc (CD), tooth top circular arc (DE), put point protection circular arc (EF), arc envelope line (FG).