TCVN2026:1977

Tiêu chuẩn Việt Nam TCVN 2026:1977 về Lò xo xoắn trụ nén và kéo loại II cấp 3 bằng thép mặt cắt tròn - Thông số cơ bản TIÊU CHUẨN NHÀ NƯỚC TCVN 2026 – 77 LÒ XO XOẮN TRỤ NÉN VÀ KÉO LOẠI II, CẤP 3 BẰNG THÉP MẶT CẮT TRÒN - THÔNG SỐ CƠ BẢN Cylindrical helical compression (tension) springs of II class and 3 category made of round steel -Main parameters of coils. 1. Tiêu chuẩn này áp dụng cho lò xo nén và kéo loại II, cấp 3 có lực khi biến dạng lớn nhất (P 3 ) từ 236 đến 10000N. 2. Thông số cơ bản của lò xo phải phù hợp với chỉ dẫn trong bảng. 3. Vật liệu: dây thép * có đường kính từ 3 đến 12 mm. 4. Phân loại lò xo – theo TCVN 2018 – 77. 5. Phương pháp xác định các kích thước của lò xo – theo TCVN 2019 – 77. Số hiệu của lò xo Lực lò xo khi biến dạng lớn nhất P 3 , N Đường kính dây d, mm Đường kính ngoài của lò xo D, mm Độ cứng của một vòng Z 1 , N/mm Biến dạng lớn nhất của một vòng f 3 , mm 1 2 3 4 5 6 1 236 3,0 40 16,00 14,750 2 260 38 18,88 13,240 3 265 36 22,54 11,760 4 280 34 27,22 10,290 5 300 32 33,18 9,042 6 315 30 41,15 7,655 7 335 28 45 51,84 20,98 6,462 15,970 8 3,5 9 10 355 3,0 3,5 26 42 66,57 26,30 5,333 13,500 11 12 375 3,0 3,5 25 40 76,08 30,85 4,930 12,160 13 14 400 3,0 3,5 24 38 87,46 36,51 4,574 10,960 15 16 17 425 3,0 3,5 4,0 22 36 52 118,30 43,71 23,15 3,592 9,723 18,360 18 19 20 450 3,0 3,5 4,0 21 34 50 138,90 52,89 26,30 3,240 8,509 17,110 21 22 23 475 3,0 3,5 4,0 20 32 48 164,60 64,82 30,05 2,886 7,327 15,810 24 25 26 500 3,0 3,5 4,0 19 30 45 198,10 80,64 37,14 2,524 6,201 13,460 27 28 29 530 3,0 3,5 4,0 18 28 42 240,00 102,00 46,65 2,208 5,196 11,360 30 31 32 33 560 3,0 3,5 4,0 4,5 17 26 40 60 294,60 131,70 54,87 24,01 1,901 4,252 10,200 23,320 34 35 600 3,0 3,5 16 25 368,70 151,20 1,627 3,968 36 37 600 4,0 4,5 38 55 65,14 31,84 9,211 18,840 38 39 40 41 630 3,0 3,5 4,0 4,5 15 24 36 52 468,80 173,90 78,12 38,26 1,344 3,623 8,064 16,470 42 43 44 45 670 3,5 4,0 4,5 5,0 22 34 50 65 237,00 94,81 43,54 28,94 2,827 7,067 15,390 23,150 46 47 48 49 710 3,5 4,0 4,5 5,0 21 32 48 63 280,00 116,60 49,77 32,03 2,536 6,089 14,260 22,170 50 51 52 53 750 3,5 4,0 4,5 5,0 20 30 45 60 334,10 145,70 61,73 37,56 2,245 5,148 12,150 19,970 54 55 56 57 58 800 3,5 4,0 4,5 5,0 5,5 19 28 42 55 75 402,60 185,20 77,76 50,00 27,26 1,986 4,320 10,290 16,000 29,350 59 60 61 62 63 850 3,5 4,0 4,5 5,0 5,5 18 26 40 52 70 492,20 240,40 91,65 60,20 34,10 1,727 3,536 9,274 14,120 24,930 64 65 66 67 68 900 3,5 4,0 4,5 5,0 5,5 17 25 38 50 65 609,90 276,40 109,30 68,59 43,44 1,476 3,256 8,234 13,120 20,720 69 70 71 72 73 950 4,0 4,5 5,0 5,5 6,0 24 36 48 63 80 320,00 131,20 78,60 48,14 32,01 2,969 7,241 12,070 19,730 29,680 74 75 76 77 78 1000 4,0 4,5 5,0 5,5 6,0 22 34 45 60 75 439,00 159,70 97,66 56,53 39,45 2,278 6,262 10,240 17,690 25,350 79 80 81 82 83 1060 4,0 4,5 5,0 5,5 6,0 21 32 42 55 70 521,00 197,30 123,40 75,44 49,39 2,034 5,372 8,590 14,050 21,460 84 85 86 87 88 1120 4,0 4,5 5,0 5,5 6,0 20 30 40 52 65 625,00 246,90 145,80 91,03 63,10 1,792 4,536 7,682 12,300 17,750 89 90 91 92 1180 4,5 5,0 5,5 6,0 28 38 50 63 316,40 173,90 103,80 70,00 3,729 6,786 11,370 16,860 93 94 95 96 1250 4,5 5,0 5,5 6,0 26 36 48 60 412,60 209,80 119,20 82,30 3,030 5,958 10,460 15,190 97 98 99 100 101 1320 4,5 5,0 5,5 6,0 7,0 25 34 45 55 90 476,00 256,30 148,50 110,00 41,96 2,773 5,150 8,889 12,000 31,460 102 103 104 105 106 1400 4,5 5,0 5,5 6,0 7,0 24 32 42 52 85 553,00 317,50 188,20 133,00 50,63 2,532 4,409 7,439 10,530 27,650 107 108 109 110 111 1500 4,5 5,0 5,5 6,0 7,0 22 30 40 50 80 764,50 400,00 222,80 152,40 61,70 1,962 3,750 6,732 9,842 24,310 112 113 114 115 1600 5,0 5,5 6,0 7,0 28 38 48 75 513,70 266,60 174,90 76,36 3,115 6,002 9,148 20,950 116 117 118 119 120 1700 5,0 5,5 6,0 7,0 8,0 26 36 45 70 105 674,80 322,60 218,50 96,02 44,94 2,519 5,270 7,780 17,700 37,830 121 122 123 124 125 1800 5,0 5,5 6,0 7,0 8,0 25 34 42 65 100 781,20 395,20 277,80 123,30 52,60 2,304 4,555 6,479 14,600 34,220 126 127 128 129 1900 5,5 6,0 7,0 8,0 32 40 63 95 491,80 329,70 136,70 62,20 3,863 5,762 13,900 30,550 130 131 132 133 2000 5,5 6,0 7,0 8,0 30 38 60 90 622,40 396,20 161,40 74,29 3,213 5,048 12,390 26,920 134 135 136 137 138 2120 5,5 6,0 7,0 8,0 9,0 28 36 55 85 120 803,30 480,00 216,80 89,72 47,98 2,639 4,417 9,778 23,630 44,180 139 140 141 142 2240 6,0 7,0 8,0 9,0 34 52 80 110 590,40 263,40 109,70 63,72 3,794 8,504 20,420 35,150 143 144 145 146 2360 6,0 7,0 8,0 9,0 32 50 75 105 737,40 302,40 135,90 74,16 3,200 7,804 17,360 31,830 147 148 149 150 2500 6,0 7,0 8,0 9,0 30 48 70 100 937,50 347,90 171,80 87,09 2,667 7,186 14,550 28,700 151 152 153 154 2650 7,0 8,0 9,0 10,0 45 65 95 130 437,60 221,20 103,00 57,87 6,056 11,980 25,730 45,790 155 156 157 158 2800 7,0 8,0 9,0 10,0 42 63 90 125 560,00 245,60 123,50 65,75 5,000 11,400 22,680 42,580 159 160 161 162 3000 7,0 8,0 9,0 10,0 40 60 85 120 668,10 291,30 149,70 75,13 4,490 10,300 20,040 32,930 163 164 165 166 3150 7,0 8,0 9,0 10,0 38 55 80 110 805,90 394,50 183,20 100,00 3,909 7,984 17,190 31,500 167 168 169 170 171 3350 7,0 8,0 9,0 10,0 11,0 36 52 75 105 140 984,50 480,80 228,20 116,60 68,15 3,403 6,968 14,680 28,730 49,160 172 173 174 175 3550 8,0 9,0 10,0 11,0 50 70 100 130 552,90 288,70 137,20 86,88 6,421 12,300 25,870 40,860 176 177 178 179 180 3750 8,0 9,0 10,0 11,0 12,0 48 65 95 125 160 640,00 374,10 162,80 98,83 64,02 5,859 10,020 23,030 37,950 58,580 181 182 183 184 185 4000 8,0 9,0 10,0 11,0 12,0 45 63 90 120 150 808,60 416,70 195,30 113,00 78,90 4,947 9,599 20,480 35,400 50,700 186 187 188 189 190 4250 8,0 9,0 10,0 11,0 12,0 42 60 85 110 140 1042,00 494,60 237,00 150,90 98,88 4,079 8,593 17,930 28,160 42,990 191 192 193 194 195 500 8,0 9,0 10,0 11,0 12,0 40 55 80 105 130 1250,00 674,50 291,50 176,30 126,30 3,600 6,672 15,440 25,530 35,630 196 197 198 199 4750 9,0 10,0 11,0 12,0 52 75 100 125 825,20 364,20 207,70 143,70 5,756 13,040 22,870 33,050 200 201 202 203 5000 9,0 10,0 11,0 12,0 50 70 95 120 951,90 463,00 246,70 164,60 5,253 10,800 20,270 30,380 204 205 206 207 5300 9,0 10,0 11,0 12,0 48 65 90 110 1109,00 601,10 297,20 220,10 4,779 8,817 17,810 24,080 208 209 210 211 5600 9,0 10,0 11,0 12,0 45 63 85 105 1406,00 671,70 360,90 257,80 3,983 8,337 15,520 21,720 212 213 214 6000 10,0 11,0 12,0 60 80 100 800,00 446,20 304,30 7,500 13,450 19,720 215 216 217 6300 10,0 11,0 12,0 55 75 95 1097,00 558,50 362,70 5,743 11,280 17,370 218 219 220 6700 10,0 11,0 12,0 52 70 90 1350,00 712,90 437,00 4,963 9,399 15,330 221 222 223 7100 10,0 11,0 12,0 50 65 85 1562,00 929,80 533,00 4,547 7,636 13,320 224 225 7500 11,0 12,0 63 80 1040,00 659,50 7,212 11,370 226 227 8000 11,0 12,0 60 75 1248,00 829,30 6,410 9,647 228 8500 11,0 55 1719,00 4,945 229 12,0 70 1063,00 7,998 230 9000 65 1390,00 6,475 231 9500 63 1563,00 6,078 232 10000 60 1875,00 5,333 * Tạm thời theo ГOCT 14963 - 69 và ГOCT 2771 - 57 của Liên Xô hay các tiêu chuẩn tương ứng của các nước khác cho đến khi có tiêu chuẩn Việt Nam tương ứng.