CN203114625U

CN203114625U - Rotor assembly of 4-15 horsepower dual-screw air compressor

Info

Publication number: CN203114625U
Application number: CN 201320131203
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: 2013-03-21
Filing date: 2013-03-21
Publication date: 2013-08-07
Anticipated expiration: 2023-03-21

Abstract

The utility model provides a rotor assembly of a 4-15 horsepower dual-screw air compressor, and relates to an air compression assembly of an air compressor. The rotor assembly is provided with a pair of female rotor and male rotor, wherein the female rotor is mutually engaged with the male rotor, the female rotor is provided with six teeth, and the male rotor is provided with five teeth. The coordinate analyzing value of each curve section forming the tooth shape of the female rotor is characterized in that in the first point, X=-22.418591, and Y=-26.662196; and until to the 252nd point, X=11.880844, and Y=-32.746168. The coordinate analyzing value of each curve section forming the tooth shape of the male rotor is characterized in that in the first point, X=-0.000125, and Y=44.132499; and until to the 206th point, X=41.972462, and Y=13.637811. The profiles of the female rotor and the male rotor exclude isolation points and straight lines, so the processing is easy.

Description

A kind of rotor combination of 4-15 horsepower double-screw air compressor

Technical field

The utility model relates to a kind of Air Compressor compression assembly.

Background technique

Double-screw air compressor utilizes female rotor, the male rotor of conjugation engagement running in the cavity to export pressurized air continuously.The characteristics of female rotor, male rotor end face molded lines have determined performance and the efficient of compressor.The manufacturer of double-screw air compressor all is devoted to the molded lines research of yin, yang rotor flute profile now, for example to disclose the patent No. be ZL200820056997.2 to Chinese utility model patent specification CN201180654Y, name is called the technological scheme of " double-screw air compressor screw rotor ", proposes this screw rotor and comprises a pair of intermeshing female rotor and male rotor; Wherein: female rotor is established 6 teeth, and its end face molded lines 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 to the top circle of next tooth in turn from the top circle of a tooth; Male rotor is established 4 teeth, and its end face molded lines is made up of two arc envelope lines, two circular arc lines, two cycloids, a circular arc line (junction of a back cycloid and this circular arc line is isolated point) and circular arc lines to the root circle of next tooth in turn from the root circle of a tooth.The document discloses the coordinate analytic value of forming each section of female rotor profile of tooth curved section and the coordinate analytic value of forming each section of male rotor profile of tooth curved section.The disclosed technological scheme of the document has can reduce fluid dynamic loss and reduction noise, and the leakage triangle area is little.Laterally reveal advantages such as little; But its female rotor and male rotor molded lines contain isolated point, even straight line, are difficult for processing.

The model utility content

The utility model aims to provide a kind of female rotor and the male rotor molded lines does not contain isolated point and straight line, easily the rotor of the 4-15 horsepower double-screw air compressor of processing makes up.

The technical solution of the utility model is: a kind of rotor combination of 4-15 horsepower double-screw air compressor, a pair of intermeshing female rotor and male rotor are arranged, and female rotor is established 6 teeth, and male rotor is established 5 teeth; The coordinate analytic value of forming each section of female rotor profile of tooth curved section is,

The 1st point, X=-22.418591, Y=-26.662196; The 2nd point, X=-22.283453, Y=-26.772519;

The 3rd point, X=-22.165858, Y=-26.860542; The 4th point, X=-22.055425, Y=-26.940412;

The 5th point, X=-21.956208, Y=-27.009166; The 6th point, X=-21.834996, Y=-27.085761;

The 7th point, X=-21.701424, Y=-27.166980; The 8th point, X=-21.579459, Y=-27.234484;

The 9th point, X=-21.434464, Y=-27.310331, the 10th point, X=-21.288586, Y=-27.379143;

The 11st point, X=-21.152095, Y=-27.439635; The 12nd point, X=-21.031131, Y=-27.489728;

The 13rd point, X=-20.861732, Y=-27.551988; The 14th point, X=-20.690913, Y=-27.609158;

The 15th point, X=-20.519689, Y=-27.660586; The 16th point, X=-20.354661, Y=-27.702059;

The 17th point, X=-20.202311, Y=-27.735252; The 18th point, X=-20.080135, Y=-27.759074;

The 19th point, X=-19.901558, Y=-27.788373; The 20th point, X=-19.721134, Y=-27.809779;

The 21st point, X=-19.551143, Y=-27.822823; The 22nd point, X=-19.400171, Y=-27.831620;

The 23rd point, X=-19.246699, Y=-27.834574; The 24th point, X=-19.116281, Y=-27.833850;

The 25th point, X=-18.983466, Y=-27.830229; The 26th point, X=-18.864336, Y=-27.823419;

The 27th point, X=-18.751783, Y=-27.813595; The 28th point, X=-18.552144, Y=-27.793463;

The 29th point, X=-18.404912, Y=-27.771433; The 30th point, X=-18.250940, Y=-27.744591;

The 31st point, X=-18.087463, Y=-27.710156; The 32nd point, X=-17.937095, Y=-27.673395;

The 33rd point, X=-17.743948, Y=-27.618757; The 34th point, X=-17.588094, Y=-27.568360;

The 35th point, X=-17.422785, Y=-27.508944; The 36th point, X=-17.273599, Y=-27.449393;

The 37th point, X=-17.094879, Y=-27.370673; The 38th point, X=-16.908986, Y=-27.279591;

The 39th point, X=-16.745474, Y=-27.191232; The 40th point, X=-16.567266, Y=-27.085957;

The 41st point, X=-16.381260, Y=-26.965153; The 42nd point, X=-16.209615, Y=-26.842582;

The 43rd point, X=-16.039122, Y=-26.709562; The 44th point, X=-15.907919, Y=-26.598473;

The 45th point, X=-15.751046, Y=-26.455257; The 46th point, X=-15.622257, Y=-26.328078;

The 47th point, X=-15.477553, Y=-26.173101; The 48th point, X=-15.419998, Y=-26.110324;

The 49th point, X=-15.315307, Y=-25.996951; The 50th point, X=-15.213707, Y=-25.887708;

The 51st point, X=-15.108687, Y=-25.775815; The 52nd point, X=-15.000446, Y=-25.661489;

The 53rd point, X=-14.896997, Y=-25.553102; The 54th point, X=-14.791884, Y=-25.443907;

The 55th point, X=-14.682355, Y=-25.331113; The 56th point, X=-14.577205, Y=-25.223691;

The 57th point, X=-14.471399, Y=-25.116545; The 58th point, X=-14.361473, Y=-25.006151;

The 59th point, X=-14.255894, Y=-24.900959; The 60th point, X=-14.141812, Y=-24.788351;

The 61st point, X=-14.033137, Y=-24.681938; The 62nd point, X=-13.925061, Y=-24.577011;

The 63rd point, X=-13.816247, Y=-24.472216; The 64th point, X=-13.701318, Y=-24.362485;

The 65th point, X=-13.594875, Y=-24.261728; The 66th point, X=-13.488935, Y=-24.162205;

The 67th point, X=-13.378684, Y=-24.059537; The 68th point, X=-13.266715, Y=-23.956166;

The 69th point, X=-13.154534, Y=-23.853357; The 70th point, X=-13.046013, Y=-23.754785;

The 71st point, X=-12.933017, Y=-23.653011; The 72nd point, X=-12.818355, Y=-23.550514;

The 73rd point, X=-12.702923, Y=-23.448308; The 74th point, X=-12.584509, Y=-23.344339;

The 75th point, X=-12.466525, Y=-23.241630; The 76th point, X=-12.353184, Y=-23.143806;

The 77th point, X=-12.219420, Y=-23.029414; The 78th point, X=-12.103503, Y=-22.931147;

The 79th point, X=-11.985845, Y=-22.832295; The 80th point, X=-11.870300, Y=-22.736022;

The 81st point, X=-11.756999, Y=-22.642397; The 82nd point, X=-11.642543, Y=-22.548603;

The 83rd point, X=-11.524128, Y=-22.452397; The 84th point, X=-11.405925, Y=-22.357186;

The 85th point, X=-11.292708, Y=-22.266743; The 86th point, X=-11.178936, Y=-22.176581;

The 87th point, X=-11.064291, Y=-22.086493; The 88th point, X=-10.946290, Y=-21.994518;

The 89th point, X=-10.829729, Y=-21.904449; The 90th point, X=-10.708625, Y=-21.811684;

The 91st point, X=-10.589854, Y=-21.721477; The 92nd point, X=-10.473136, Y=-21.633592;

The 93rd point, X=-10.354783, Y=-21.545174; The 94th point, X=-10.236198, Y=-21.457245;

The 95th point, X=-10.112885, Y=-21.366807; The 96th point, X=-10.002856, Y=-21.286664;

The 97th point, X=-9.880395, Y=-21.198279; The 98th point, X=-9.761103, Y=-21.112908;

The 99th point, X=-9.645877, Y=-21.031092; The 100th point, X=-9.517368, Y=-20.940655;

The 101st point, X=-9.384829, Y=-20.848287; The 102nd point, X=-9.263898, Y=-20.764726;

The 103rd point, X=-9.143904, Y=-20.682569; The 104th point, X=-9.023670, Y=-20.600946;

The 105th point, X=-8.888712, Y=-20.510114; The 106th point, X=-8.756237, Y=-20.422238;

The 107th point, X=-8.631128, Y=-20.341004; The 108th point, X=-8.507957, Y=-20.262639;

The 109th point, X=-8.377746, Y=-20.181454; The 110th point, X=-8.250552, Y=-20.103933;

The 111st point, X=-8.123267, Y=-20.027866; The 112nd point, X=-7.996976, Y=-19.953988;

The 113rd point, X=-7.873623, Y=-19.883294; The 114th point, X=-7.743582, Y=-19.810346;

The 115th point, X=-7.607602, Y=-19.735724; The 116th point, X=-7.477659, Y=-19.666073;

The 117th point, X=-7.345093, Y=-19.596618; The 118th point, X=-7.198933, Y=-19.521751;

The 119th point, X=-7.060740, Y=-19.452827; The 120th point, X=-6.916786, Y=-19.382677;

The 121st point, X=-6.779175, Y=-19.317354; The 122nd point, X=-6.645100, Y=-19.255243;

The 123rd point, X=-6.511400, Y=-19.194795; The 124th point, X=-6.377046, Y=-19.135480;

The 125th point, X=-6.238421, Y=-19.075864; The 126th point, X=-6.101936, Y=-19.018644;

The 127th point, X=-5.961619, Y=-18.961403; The 128th point, X=-5.822426, Y=-18.906092;

The 129th point, X=-5.679161, Y=-18.850778; The 130th point, X=-5.536258, Y=-18.797196;

The 131st point, X=-5.392967, Y=-18.744861; The 132nd point, X=-5.253808, Y=-18.695782;

The 133rd point, X=-5.115907, Y=-18.648411; The 134th point, X=-4.962756, Y=-18.597445;

The 135th point, X=-4.816117, Y=-18.550330; The 136th point, X=-4.676202, Y=-18.506761;

The 137th point, X=-4.536710, Y=-18.464736; The 138th point, X=-4.414163, Y=-18.428897;

The 139th point, X=-4.285395, Y=-18.392441; The 140th point, X=-4.205683, Y=-18.370478;

The 141st point, X=-4.047182, Y=-18.328036; The 142nd point, X=-3.897911, Y=-18.289698;

The 143rd point, X=-3.754375, Y=-18.254263; The 144th point, X=-3.612888, Y=-18.220721;

The 145th point, X=-3.323215, Y=-18.153433; The 146th point, X=-3.007738, Y=-18.092468;

The 147th point, X=-2.719584, Y=-18.039880; The 148th point, X=-2.409848, Y=-17.989556;

The 149th point, X=-2.102877, Y=-17.945728; The 150th point, X=-1.800105, Y=-17.908436;

The 151st point, X=-1.510708, Y=-17.878437; The 152nd point, X=-1.227232, Y=-17.853939;

The 153rd point, X=-0.932290, Y=-17.833935; The 154th point, X=-0.658887, Y=-17.820342;

The 155th point, X=-0.301599, Y=-17.809609; The 156th point, X=-0.000049, Y=-17.806877;

The 157th point, X=0.305778, Y=-17.812997; The 158th point, X=0.613128, Y=-17.831836;

The 159th point, X=1.068413, Y=-17.876425; The 160th point, X=1.483200, Y=-17.938672;

The 161st point, X=1.801869, Y=-17.998131; The 162nd point, X=2.163959, Y=-18.084815;

The 163rd point, X=2.497131, Y=-18.174825; The 164th point, X=2.833333, Y=-18.284784;

The 165th point, X=3.161218, Y=-18.402127; The 166th point, X=3.488224, Y=-18.537404;

The 167th point, X=3.808231, Y=-18.680568; The 168th point, X=4.125780, Y=-18.841336;

The 169th point, X=4.433219, Y=-19.008477; The 170th point, X=4.743573, Y=-19.195252;

The 171st point, X=5.044592, Y=-19.389420; The 172nd point, X=5.340365Y=-19.598610;

The 173rd point, X=5.642045Y=-19.826893; The 174th point, X=5.919754Y=-20.055695;

The 175th point, X=6.129423Y=-20.241169; The 176th point, X=6.433613Y=-20.529845;

The 177th point, X=6.754436Y=-20.849233; The 178th point, X=6.965221, Y=-21.073457;

The 179th point, X=7.193241, Y=-21.334338; The 180th point, X=7.448886, Y=-21.650387;

The 181st point, X=7.677973, Y=-21.951049; The 182nd point, X=7.900325, Y=-22.266724;

The 183rd point, X=8.111528, Y=-22.585925; The 184th point, X=8.318005, Y=-22.920721;

The 185th point, X=8.415180, Y=-23.089519; The 186th point, X=8.512355, Y=-23.258317;

The 187th point, X=8.700486, Y=-23.610637; The 188th point, X=8.877589, Y=-23.966168;

The 189th point, X=9.046407, Y=-24.334747; The 190th point, X=9.204062, Y=-24.705551;

The 191st point, X=9.354475, Y=-25.091330; The 192nd point, X=9.492836, Y=-25.476365;

The 193rd point, X=9.623457, Y=-25.878663; The 194th point, X=9.742257, Y=-26.280622;

The 195th point, X=9.852172, Y=-26.695020; The 196th point: X=9.950437, Y=-27.110640;

The 199th point, X=10.039490, Y=-27.538662; The 200th point, X=10.112937, Y=-27.946719;

The 201st point, X=10.184327, Y=-28.407840; The 202nd point, X=10.240995, Y=-28.848078;

The 203rd point, X=10.285650, Y=-29.300810; The 204th point, X=10.318827, Y=-29.743170;

The 205th point, X=10.332138, Y=-29.983497; The 206th point, X=10.340413, Y=-30.174575;

The 207th point, X=10.348837, Y=-30.459708; The 208th point, X=10.352286, Y=-30.687287;

The 209th point, X=10.352034, Y=-31.017431; The 210th point, X=10.350094, Y=-31.154903;

The 211st point, X=10.343551, Y=-31.415443; The 212nd point, X=10.335688, Y=-31.617944;

The 213rd point, X=10.335286, Y=-31.674757; The 214th point, X=10.336977, Y=-31.726211;

The 215th point, X=10.340167, Y=-31.771917; The 216th point, X=10.345561, Y=-31.818560;

The 217th point, X=10.353707, Y=-31.868736; The 218th point, X=10.363682, Y=-31.917091;

The 219th point, X=10.377773, Y=-31.973043; The 220th point, X=10.392045, Y=-32.020230;

The 221st point, X=10.409390, Y=-32.069802; The 222nd point, X=10.428742, Y=-32.118243;

The 223rd point, X=10.456836, Y=-32.178458; The 224th point, X=10.488867, Y=-32.237802;

The 225th point, X=10.519793, Y=-32.288570; The 226th point, X=10.553751, Y=-32.338188;

The 227th point, X=10.583402, Y=-32.377246; The 228th point, X=10.622590, Y=-32.424341;

The 229th point, X=10.665562, Y=-32.470298; The 230th point, X=10.708610, Y=-32.512070;

The 231st point, X=10.750456, Y=-32.548548; The 232nd point, X=10.792193, Y=-32.581786;

The 233rd point, X=10.832718, Y=-32.610851; The 234th point, X=10.893914, Y=-32.650640;

The 235th point, X=10.946409, Y=-32.680276; The 236th point, X=11.000547, Y=-32.707236;

The 237th point, X=11.055803, Y=-32.731292; The 238th point, X=11.112647, Y=-32.752561;

The 239th point, X=11.170015, Y=-32.770500; The 240th point, X=11.228775, Y=-32.785795;

The 241st point, X=11.287387, Y=-32.797824; The 242nd point, X=11.347483, Y=-32.806671;

The 243rd point, X=11.407486, Y=-32.812424; The 244th point, X=11.467431, Y=-32.815051;

The 245th point, X=11.527732, Y=-32.814424; The 246th point, X=11.588165, Y=-32.810840;

The 247th point, X=11.647993, Y=-32.804010; The 248th point, X=11.707866, Y=-32.794070;

The 249th point, X=11.766532, Y=-32.780897; The 251st point, X=11.825025, Y=-32.764707;

The 252nd point, X=11.880844, Y=-32.746168;

The coordinate analytic value of forming described each section of male rotor profile of tooth curved section is,

The 1st point, X=-0.000125, Y=44.132499; The 2nd point, X=0.093982, Y=44.130383;

The 3rd point, X=0.187884, Y=44.123506; The 4th point, X=0.262559, Y=44.114740;

The 5th point, X=0.339028, Y=44.102669; The 6th point, X=0.421847, Y=44.086036;

The 7th point, X=0.493573, Y=44.068458; The 8th point, X=0.561819, Y=44.049101;

The 9th point, X=0.627925, Y=44.027649; The 10th point, X=0.697369, Y=44.002257;

The 11st point, X=0.766518, Y=43.973852; The 12nd point, X=0.848776, Y=43.936026;

The 13rd point, X=0.920672, Y=43.898948; The 14th point, X=0.983433, Y=43.863371;

The 15th point, X=1.050640, Y=43.821750; The 16th point, X=1.112624, Y=43.779715;

The 17th point, X=1.174124, Y=43.734585; The 18th point, X=1.385201, Y=43.566648;

The 19th point, X=1.593456, Y=43.396688; The 20th point, X=1.957998, Y=43.093296;

The 21st point, X=2.315683, Y=42.788242; The 22nd point, X=2.654485, Y=42.492336;

The 23rd point, X=2.988303, Y=42.191336; The 24th point, X=3.310219, Y=41.892788;

The 25th point, X=3.629946, Y=41.586595; The 26th point, X=3.939249, Y=41.284490;

The 27th point, X=4.242408, Y=40.980236; The 28th point, X=4.539451, Y=40.673002;

The 29th point, X=4.820893, Y=40.372375; The 30th point, X=5.096497, Y=40.067865;

The 31st point, X=5.364831, Y=39.760663; The 32nd point, X=5.624101, Y=39.456170;

The 33rd point, X=5.876689, Y=39.149577; The 34th point, X=6.120046, Y=38.846061;

The 35th point, X=6.357000, Y=38.540460; The 36th point, X=6.584707, Y=38.238566;

The 37th point, X=6.806304, Y=37.934686; The 38th point, X=7.018503, Y=37.635278;

The 39th point, X=7.225197, Y=37.333592; The 40th point, X=7.423990, Y=37.034713;

The 41st point, X=7.614334, Y=36.738480; The 42nd point, X=7.796725, Y=36.445883;

The 43rd point, X=7.974417, Y=36.150619; The 44th point, X=8.306179, Y=35.571282;

The 45th point, X=8.610473, Y=35.001573; The 46th point, X=8.888126, Y=34.442686;

The 47th point, X=9.140036, Y=33.895725; The 48th point, X=9.367145, Y=33.361753;

The 49th point, X=9.570435, Y=32.841783; The 50th point, X=9.749945, Y=32.337700;

The 51st point, X=9.909167, Y=31.847268; The 52nd point, X=10.048204, Y=31.373917;

The 53rd point, X=10.165441, Y=30.921759; The 54th point, X=10.266120, Y=30.483603;

The 55th point, X=10.349175, Y=30.066259; The 56th point, X=10.416311, Y=29.668438;

The 57th point, X=10.468733, Y=29.290870; The 58th point, X=10.507703, Y=28.934069;

The 59th point, X=10.534497, Y=28.598502; The 60th point, X=10.550408, Y=28.284570;

The 61st point, X=10.556742, Y=27.992612; The 62nd point, X=10.554814, Y=27.722903;

The 63rd point, X=10.545946, Y=27.475647; The 64th point, X=10.531461, Y=27.250978;

The 65th point, X=10.512681, Y=27.048952; The 66th point, X=10.490920, Y=26.869538;

The 67th point, X=10.467476, Y=26.712606; The 68th point, X=10.443615, Y=26.577891;

The 69th point, X=10.420550, Y=26.464939; The 70th point, X=10.374990, Y=26.275569;

The 71st point, X=10.352809, Y=26.195793; The 72nd point, X=10.332462, Y=26.113138;

The 73rd point, X=10.322469, Y=26.064201; The 74th point, X=10.314364, Y=26.015819;

The 75th point, X=10.308373, Y=25.964880; The 76th point, X=10.304255, Y=25.901764;

The 77th point, X=10.302778, Y=25.843978; The 78th point, X=10.304010, Y=25.785227;

The 79th point, X=10.309192, Y=25.718274; The 80th point, X=10.316824, Y=25.657235;

The 81st point, X=10.328417, Y=25.592921; The 82nd point, X=10.352036, Y=25.498828;

The 83rd point, X=10.384371, Y=25.407793; The 84th point, X=10.430327, Y=25.302862;

The 85th point, X=10.467510, Y=25.236045; The 86th point, X=10.513222, Y=25.164928;

The 87th point, X=10.558471, Y=25.102671; The 88th point, X=10.611036, Y=25.041519;

The 89th point, X=10.673186, Y=24.979729; The 90th point, X=10.741515, Y=24.921640;

The 91st point, X=10.806848, Y=24.872665; The 92nd point, X=10.892715, Y=24.820637;

The 93rd point, X=10.965264, Y=24.784138; The 94th point, X=11.161627, Y=24.700182;

The 95th point, X=11.392676, Y=24.608508; The 96th point, X=11.599217, Y=24.534110;

The 97th point, X=11.711043, Y=24.497675; The 98th point, X=11.840837, Y=24.461111;

The 99th point, X=12.031258, Y=24.414335; The 100th point, X=12.206646, Y=24.376129;

The 101st point, X=12.455002, Y=24.330004; The 102nd point, X=12.743031, Y=24.281377;

The 103rd point, X=12.880062, Y=24.263989; The 104th point, X=13.007464, Y=24.252123;

The 105th point, X=13.292672, Y=24.234091; The 106th point, X=13.422888, Y=24.228263;

The 107th point, X=13.535413, Y=24.225568; The 108th point, X=13.638023, Y=24.224567;

The 109th point, X=13.747671, Y=24.225600; The 110th point, X=13.960948, Y=24.232178;

The 111st point, X=14.182184, Y=24.243065; The 112nd point, X=14.425097, Y=24.260086;

The 113rd point, X=14.587705, Y=24.275231; The 114th point, X=14.735793, Y=24.293388;

The 115th point, X=14.959372, Y=24.326619; The 116th point, X=15.091368, Y=24.348767;

The 117th point, X=15.329478, Y=24.392316; The 118th point, X=15.676016, Y=24.461430;

The 119th point, X=16.062571, Y=24.545303; The 120th point, X=16.404847, Y=24.631009;

The 121st point, X=16.745849, Y=24.721049; The 122nd point, X=17.079547, Y=24.811950;

The 123rd point, X=17.408465, Y=24.902668; The 124th point, X=17.736933, Y=24.993015;

The 125th point, X=18.068731, Y=25.082891; The 126th point, X=18.406795, Y=25.172089;

The 127th point, X=18.608445, Y=25.224177; The 128th point, X=18.972583, Y=25.314009;

The 129th point, X=19.335019, Y=25.399192; The 130th point, X=19.554988, Y=25.448536;

The 131st point, X=19.706515, Y=25.481449; The 132nd point, X=19.936396Y=25.529386;

The 133rd point, X=20.098045, Y=25.561979; The 134th point, X=20.332292, Y=25.606985;

The 135th point, X=20.521459, Y=25.642326; The 136th point, X=20.832292, Y=25.700406;

The 137th point, X=21.054589, Y=25.737025; The 138th point, X=21.274084, Y=25.770441;

The 139th point, X=21.517075, Y=25.804771; The 140th point, X=21.760204, Y=25.835341;

The 141st point, X=22.097213, Y=25.873426; The 142nd point, X=22.426715, Y=25.904524;

The 143rd point, X=22.831102, Y=25.933634; The 144th point, X=23.237994, Y=25.952682;

The 145th point, X=23.670620, Y=25.962280; The 146th point, X=24.099386, Y=25.960482;

The 147th point, X=24.557805, Y=25.948395; The 148th point, X=25.009632, Y=25.922224;

The 149th point, X=25.530485, Y=25.880652; The 150th point, X=25.966870, Y=25.832048;

The 151st point, X=26.536582, Y=25.755678; The 152nd point, X=26.968668, Y=25.683981;

The 153rd point, X=27.490520, Y=25.586503; The 154th point, X=28.011923, Y=25.471987;

The 155th point, X=28.502775, Y=25.353595; The 156th point, X=28.960567, Y=25.226445;

The 157th point, X=29.659226, Y=25.015078; The 158th point, X=30.342255, Y=24.782316;

The 159th point, X=30.839702, Y=24.599504; The 160th point, X=31.348700, Y=24.392517;

The 161st point, X=31.978311, Y=24.119328; The 162nd point, X=32.511993, Y=23.865688;

The 163rd point, X=33.125295, Y=23.555985; The 164th point, X=33.689645, Y=23.246572;

The 165th point, X=34.295918, Y=22.895358; The 166th point, X=34.873681, Y=22.530627;

The 167th point, X=35.415822, Y=22.171759; The 168th point, X=36.055166, Y=21.714077;

The 169th point, X=36.461584, Y=21.411522; The 170th point, X=36.841265, Y=21.108512;

The 171st point, X=37.096568, Y=20.894260; The 172nd point, X=37.389920, Y=20.636346;

The 173rd point, X=37.593831, Y=20.453214; The 174th point, X=37.593831, Y=20.453214;

The 175th point, X=37.804194, Y=20.256431; The 176th point, X=37.973070, Y=20.094670;

The 177th point, X=38.152779, Y=19.915918; The 178th point, X=38.319009, Y=19.746402;

The 179th point, X=38.481680, Y=19.574607; The 180th point, X=38.650696, Y=19.391072;

The 181st point, X=38.801497, Y=19.222349; The 182nd point, X=38.991889, Y=19.001369;

The 183rd point, X=39.177891, Y=18.778177; The 184th point, X=39.324821, Y=18.595385;

The 185th point, X=39.477082, Y=18.400004; The 186th point, X=39.637125, Y=18.186741;

The 187th point, X=39.786689, Y=17.979992; The 188th point, X=39.928272, Y=17.778208;

The 189th point, X=40.068759, Y=17.570517; The 190th point, X=40.207377, Y=17.359549;

The 191st point, X=40.332257, Y=17.161692; The 192nd point, X=40.499004, Y=16.885657;

The 193rd point, X=40.660689, Y=16.605678; The 194th point, X=40.787517, Y=16.378489;

The 195th point, X=40.910066, Y=16.149101; The 196th point, X=41.133607, Y=15.706134;

The 197th point, X=41.295088, Y=15.362638; The 198th point, X=41.435371, Y=15.056511;

The 199th point, X=41.571162, Y=14.734910; The 200th point, X=41.637972, Y=14.568429;

The 201st point, X=41.716219, Y=14.365985; The 202nd point, X=41.770705, Y=14.220879;

The 203rd point, X=41.823032, Y=14.075561; The 204th point, X=41.876772, Y=13.922637;

The 205th point, X=41.928270, Y=13.772632; The 206th point, X=41.972462, Y=13.637811.

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 the described female rotor; Each tooth is provided with respectively the circular arc corresponding with each circular arc of each tooth on the above-mentioned female rotor on the described male rotor: 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.

The combination of the rotor of the utility model 4-15 horsepower double-screw air compressor, adopting the male rotor number of teeth is 5, and the female rotor number of teeth is that 6 number of teeth combination can make the pressure reduction between element volume reduce, and the suction and discharge orifice area increases and is conducive to improve compressor efficiency.Adopt the molded lines structure of the coordinate figure formation of above-mentioned yin, yang rotor, sealability between the yin, yang rotor tooth, between the volume, stop pressurized gas to leak to low voltage terminal by three wideer sealing strips, and selected less leakage triangle for use, all the tooth curve is formed by circular arc and arc envelope line, and each tooth curve has been stopped isolated point, straight line, improve the rotor processibility, be convenient to adopt gear hobbing, mill, grind processing processing.The rotor combination of the utility model 4-15 horsepower double-screw air compressor, adopt above-mentioned molded lines to form, not a linear sealing in the above-mentioned molded lines engagement process but realize the flank of tooth multi-sealed to the flank of tooth in several zones fully, help and form the hydrodynamic lubrication oil film, reduce the transverse leakage by Line of contact.Above-mentioned molded lines adopts less circular arc excessive, and leakage triangle is little, leaks few.Adopt the tooth top circular arc both to protect potted line to form point, be convenient to measure the male rotor external diameter again.Adopt the male rotor tooth top three-arc to connect, female rotor do not adopt circular arc take all of arc way and to the tooth top three-arc entirely with the arc envelope line engagement, the pump-absorb action of having avoided tooth curve moment engagement moment to throw off is of value to and forms oil film and reduce noise.It is streamlined that the moon, all tie points of male rotor molded lines all are that rounding off is, and resistance of air is little, reduced the fluid dynamic loss and reduced noise.All cycloids form point the circular arc protection, therefore has better comprehensive performance.

Description of drawings

Fig. 1 is a rotor set unification embodiment's of the utility model 4-15 horsepower double-screw air compressor end-face structure schematic representation.

Fig. 2 is the partial enlarged drawing of T portion among Fig. 1.

Embodiment

A rotor set unification embodiment of the utility model 4-15 horsepower double-screw air compressor is a pair of intermeshing female rotor and male rotor, the end-face structure of this rotor combination, as shown in Figure 1.Female rotor 1 is established 6 teeth, and male rotor 2 is established 5 teeth.Helix angle numerical value on the female rotor 1 joint garden is identical with helix angle numerical value on the male rotor 2 joint gardens, is 46.183 °; On the female rotor 1 on the length of toothed region and the male rotor 2 length of toothed region identical, be 413 millimeters; The tooth depth of the tooth depth of male rotor 2 and female rotor 1 is 49.75 millimeters.The external diameter of female rotor 1 is 203.52 millimeters, and the external diameter of male rotor 2 is 257.75 millimeters.

The coordinate analytic value of forming female rotor 1 each section of profile of tooth curved section is,

The 252nd point, X=11.880844, Y=-32.746168.

The coordinate analytic value of forming male rotor 2 each section of profile of tooth curved sections is,

The 3rd point, X=0.187884, Y=44.123506; The 4th point, X=0.262559, Y=44.114740;

The 5th point, X=0.339028, Y=44.102669; The 6th point, X=0.421847, Y=44.086036;

The 7th point, X=0.493573, Y=44.068458; The 8th point, X=0.561819, Y=44.049101;

Adopt the molded lines structure of the coordinate figure formation of above-mentioned yin, yang rotor, as shown in Figure 2: 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 the female rotor 1.Each tooth is provided with respectively the circular arc corresponding with each circular arc of each tooth on the above-mentioned female rotor 1 on the male rotor 2: 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, the volume, stop pressurized gas to leak to low voltage terminal by three wideer sealing strips, and selected less leakage triangle for use, and all the tooth curve is formed by circular arc and arc envelope line, and each tooth curve has been stopped isolated point and straight line.Not a linear sealing in the above-mentioned molded lines engagement process but realize the flank of tooth multi-sealed to the flank of tooth in several zones fully that adopt less circular arc excessive, leakage triangle is little, leaks few.Male rotor 2 tooth top three-arcs connect, and female rotor 1 tooth top three-arc meshes with arc envelope line entirely.It is streamlined that all tie points of the molded lines of female rotor 1 and male rotor 2 all are that rounding off is, and all cycloids form point the circular arc protection.

The above only is the utility model preferred embodiment, does not limit the scope that the utility model is implemented with this, and the equivalence of doing according to the technical solution of the utility model and description changes and modification, all should belong to the scope that the utility model is contained.

Claims

1. the rotor of 4-15 horsepower double-screw air compressor combination has a pair of intermeshing female rotor and male rotor, and it is characterized in that: female rotor is established 6 teeth, and male rotor is established 5 teeth; The coordinate analytic value of forming each section of female rotor profile of tooth curved section is,

The 252nd point, X=11.880844, Y=-32.746168;

The 3rd point, X=0.187884, Y=44.123506; The 4th point, X=0.262559, Y=44.114740;

The 5th point, X=0.339028, Y=44.102669; The 6th point, X=0.421847, Y=44.086036;

The 7th point, X=0.493573, Y=44.068458; The 8th point, X=0.561819, Y=44.049101;

The 205th point, X=41.928270, Y=13.772632; The 206th point, X=41.972462, Y=13.637811;