LÒ XO XOẮN TRỤ NÉN VÀ KÉO LOẠI I, CẤP 3 BẰNG THÉP MẶT CẮT TRÒN - THÔNG SỐ CƠ BẢN
Cylindrical helical compression (tension) spring of I class and of 3 category made of round steel - Main parameters coils
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 TVCN 2018 – 77.
5. Phương pháp xác định kích thước của lò xo – theo TCVN 2019 – 77.
| Số hiệu của lò xo | Lực lò xo khi biến dạng lớn nhất P3, N | Đường kính của dây d, mm | Đường kính ngoài của lò xo D, mm | Độ cứng của một vòng Z1, N/mm | Biến dạng lớn nhất của một vòng f3, mm |
| 1 | 140 | 3,0 | 40 | 16,00 | 8,750 |
| 2 | 150 | 38 | 18,88 | 7,945 | |
| 3 | 160 | 36 | 22,54 | 7,098 | |
| 4 | 170 | 34 | 27,22 | 6,245 | |
| 5 | 180 | 32 | 33,18 | 5,425 | |
| 6 | 190 | 3,0 | 30 | 41,15 | 4,617 |
| 7 | 3,5 | 45 | 20,98 | 9,056 | |
| 8 9 | 200 | 3,0 3,5 | 28 42 | 51,84 26,30 | 3,858 7,604 |
| 10 11 | 212 | 3,0 3,5 | 26 40 | 66,57 30,85 | 3,185 6,872 |
| 12 13 | 224 | 3,0 3,5 | 25 38 | 76,07 36,51 | 2,945 6,135 |
| 14 15 | 236 | 3,0 3,5 | 24 36 | 87,46 43,71 | 2,698 5,399 |
| 16 17 18 | 250 | 3,0 3,5 4,0 | 22 34 52 | 118,30 52,89 23,15 | 2,113 4,727 10,800 |
| 19 20 21 | 265 | 3,0 3,5 4,0 | 21 32 50 | 138,90 64,82 26,30 | 1,908 4,088 10,080 |
| 22 23 24 | 280 | 3,0 3,5 4,0 | 20 30 48 | 164,60 80,64 30,05 | 1,701 3,473 9,318 |
| 25 26 27 | 300 | 3,0 3,5 4,0 | 19 28 45 | 198,10 102,00 37,14 | 1,514 2,941 8,078 |
| 28 29 30 31 | 315 | 3,0 3,5 4,0 4,5 | 18 26 42 60 | 240,00 131,70 46,65 24,01 | 1,312 2,392 6,752 13,120 |
| 32 33 34 35 | 335 | 3,0 3,5 4,0 4,5 | 17 25 40 55 | 294,60 151,20 54,87 31,84 | 1,137 2,216 6,105 10,520 |
| 36 37 38 39 | 355 | 3,0 3,5 4,0 4,5 | 16 24 38 52 | 368,70 173,90 65,15 38,26 | 0,963 2,041 5,449 9,278 |
| 40 41 42 43 44 | 375 | 3,0 3,5 4,0 4,5 5,0 | 15 22 36 50 65 | 468,80 237,00 78,12 43,54 28,94 | 0,800 1,582 4,800 8,613 12,960 |
| 45 46 47 48 | 400 | 3,5 4,0 4,5 5,0 | 21 34 48 63 | 280,00 94,81 49,77 32,03 | 1,428 4,219 8,037 12,490 |
| 49 50 51 52 | 425 | 3,5 4,0 4,5 5,0 | 20 32 45 60 | 334,10 116,60 61,73 37,56 | 1,272 3,644 6,885 11,320 |
| 53 54 55 56 57 | 450 | 3,5 4,0 4,5 5,0 5,5 | 19 30 42 55 75 | 402,60 145,70 77,76 50,00 27,26 | 1,118 3,088 5,788 9,000 16,510 |
| 58 59 60 61 62 | 475 | 3,5 4,0 4,5 5,0 5,5 | 18 28 40 52 70 | 492,20 185,20 91,65 60,20 34,10 | 0,965 2,565 5,183 7,890 13,930 |
| 63 64 65 66 67 | 500 | 3,5 4,0 4,5 5,0 5,5 | 17 26 38 50 65 | 609,90 240,40 109,30 68,59 43,44 | 0,820 2,080 4,575 7,290 11,510 |
| 68 69 70 71 | 530 | 4,0 4,5 5,0 5,5 | 25 36 48 63 | 276,40 131,20 78,60 48,14 | 1,917 4,040 6,743 11,010 |
| 72 73 74 75 76 | 560 | 4,0 4,5 5,0 5,5 6,0 | 24 34 45 60 80 | 320,00 159,70 97,66 56,53 32,01 | 1,750 3,506 5,734 9,906 17,490 |
| 77 78 79 80 81 | 600 | 4,0 4,5 5,0 5,5 6,0 | 22 32 42 55 75 | 439,00 197,30 123,40 75,44 39,45 | 1,367 3,041 4,862 7,953 15,210 |
| 82 83 84 85 86 | 630 | 4,0 4,5 5,0 5,5 6,0 | 21 30 40 52 70 | 521,00 246,90 145,80 91,03 49,39 | 1,209 2,552 4,321 6,921 12,760 |
| 87 88 89 90 91 | 670 | 4,0 4,5 5,0 5,5 6,0 | 20 28 38 50 65 | 625,00 316,40 173,90 103,80 63,10 | 1,072 2,118 3,852 6,455 10,620 |
| 92 93 94 95 | 710 | 4,5 5,0 5,5 6,0 | 26 36 48 63 | 412,60 209,80 119,20 70,00 | 1,721 3,384 5,956 10,140 |
| 96 97 98 99 | 750 | 4,5 5,0 5,5 6,0 | 25 34 45 60 | 476,00 256,30 148,50 82,30 | 1,576 2,926 5,050 9,113 |
| 100 101 102 103 104 | 800 | 4,5 5,0 5,5 6,0 7,0 | 24 32 42 55 90 | 553,00 317,50 188,20 110,06 41,96 | 1,447 2,520 4,362 7,273 19,060 |
| 105 106 107 108 109 | 850 | 4,5 5,0 5,5 6,0 7,0 | 22 30 40 52 85 | 764,50 400,00 222,80 133,00 50,63 | 1,112 2,125 3,815 6,391 16,790 |
| 110 111 112 113 | 900 | 5,0 5,5 6,0 7,0 | 28 38 50 80 | 513,70 266,60 152,40 61,70 | 1,752 3,376 5,906 14,590 |
| 114 115 116 117 | 950 | 5,0 5,5 6,0 7,0 | 26 36 48 75 | 674,80 322,60 174,90 76,36 | 1,408 2,945 5,432 12,440 |
| 118 119 120 121 122 | 1000 | 5,0 5,5 6,0 7,0 8,0 | 25 34 45 70 105 | 781,20 395,20 218,50 96,02 44,94 | 1,280 2,530 4,577 10,410 22,250 |
| 123 124 125 126 | 1060 | 5,5 6,0 7,0 8,0 | 32 42 65 100 | 491,80 277,80 123,30 52,60 | 2,155 3,816 8,597 20,150 |
| 127 128 129 130 | 1120 | 5,5 6,0 7,0 8,0 | 30 40 63 95 | 622,40 329,70 136,70 62,20 | 1,799 3,397 8,193 18,010 |
| 131 132 133 134 | 1180 | 5,5 6,0 7,0 8,0 | 28 38 60 90 | 803,30 396,20 161,40 74,29 | 1,469 2,978 7,211 15,880 |
| 135 136 137 138 | 1250 | 6,0 7,0 8,0 9,0 | 36 55 85 120 | 480,00 216,80 89,72 47,98 | 2,604 5,766 13,930 26,050 |
| 139 140 141 142 | 1320 | 6,0 7,0 8,0 9,0 | 34 52 80 110 | 590,40 263,40 109,70 63,72 | 2,236 5,011 12,030 20,720 |
| 143 144 145 146 | 1400 | 6,0 7,0 8,0 9,0 | 32 50 75 105 | 737,40 302,40 135,90 74,16 | 1,899 4,630 10,300 18,880 |
| 147 148 149 150 151 | 1500 | 6,0 7,0 8,0 9,0 10,0 | 30 48 70 100 130 | 937,50 347,90 171,80 87,09 57,87 | 1,600 4,312 8,731 17,320 25,920 |
| 152 153 154 155 | 1600 | 7,0 8,0 9,0 10,0 | 45 65 95 125 | 437,60 221,20 103,00 65,75 | 3,657 7,234 15,530 24,330 |
| 156 157 158 159 | 1700 | 7,0 8,0 9,0 10,0 | 42 63 90 120 | 560,00 245,60 123,50 75,13 | 3,036 6,922 13,770 22,630 |
| 160 161 162 163 | 1800 | 7,0 8,0 9,0 10,0 | 40 60 85 110 | 668,10 291,30 149,70 100,00 | 2,694 6,179 12,020 18,000 |
| 164 165 166 167 | 1900 | 7,0 8,0 9,0 10,0 | 38 55 80 105 | 805,90 394,50 183,20 116,60 | 2,358 4,816 10,370 16,300 |
| 168 169 170 171 172 | 2000 | 7,0 8,0 9,0 10,0 11,0 | 36 52 75 100 140 | 984,50 480,80 228,20 137,20 68,15 | 2,032 4,160 8,764 14,580 29,350 |
| 173 174 175 176 | 2120 | 8,0 9,0 10,0 11,0 | 50 70 95 130 | 552,90 288,70 162,80 86,88 | 3,834 7,343 13,020 24,400 |
| 177 178 179 180 181 | 2240 | 8,0 9,0 10,0 11,0 12,0 | 48 65 90 125 160 | 640,00 374,10 195,30 98,83 64,02 | 3,500 5,988 11,470 22,670 34,990 |
| 182 183 184 185 186 | 2360 | 8,0 9,0 10,0 11,0 12,0 | 45 63 85 120 150 | 808,60 416,70 237,00 113,00 78,90 | 2,919 5,664 9,958 20,880 29,910 |
| 187 188 189 190 191 | 2500 | 8,0 9,0 10,0 11,0 12,0 | 42 60 80 110 140 | 1042,00 494,60 291,50 150,90 98,88 | 2,399 5,055 8,576 16,570 25,290 |
| 192 193 194 195 196 | 2650 | 8,0 9,0 10,0 11,0 12,0 | 40 55 75 105 130 | 1250,00 674,10 364,20 176,30 126,30 | 2,120 3,931 7,276 15,030 20,980 |
| 197 198 199 200 | 2800 | 9,0 10,0 11,0 12,0 | 52 70 100 125 | 825,20 463,00 207,70 143,70 | 3,393 6,048 13,480 19,480 |
| 201 202 203 204 | 2800 | 9,0 10,0 11,0 12,0 | 50 65 95 120 | 951,90 601,10 246,70 164,60 | 3,152 4,991 12,160 18,230 |
| 205 206 207 208 | 3150 | 9,0 10,0 11,0 12,0 | 48 63 90 110 | 1109,00 671,70 297,20 220,10 | 2,841 4,690 10,600 14,310 |
| 209 210 211 212 | 3350 | 9,0 10,0 11,0 12,0 | 45 60 85 105 | 1406,00 800,00 360,90 257,80 | 2,383 4,188 9,282 12,990 |
| 213 214 215 | 3550 | 10,0 11,0 12,0 | 55 80 100 | 1097,00 446,20 304,30 | 3,236 7,956 11,670 |
| 216 217 218 | 3750 | 10,0 11,0 12,0 | 52 75 95 | 1350,00 558,50 362,70 | 2,778 6,714 10,340 |
| 219 220 221 | 4000 | 10,0 11,0 12,0 | 50 70 90 | 1562,00 712,90 437,00 | 2,561 5,611 9,153 |
| 222 223 | 4250 | 11,0 12,0 | 65 85 | 929,80 533,00 | 4,571 7,973 |
| 224 225 | 4500 | 11,0 12,0 | 63 80 | 1040,00 659,50 | 4,327 6,823 |
| 226 227 | 4750 | 11,0 12,0 | 60 75 | 1248,00 829,30 | 3,806 5,728 |
| 228 | 5000 | 11,0 | 55 | 1719,00 | 2,909 |
| 229 | 12,0 | 70 | 1063,00 | 4,705 | |
| 230 | 5300 | 65 | 1390,00 | 3,813 | |
| 231 | 5600 | 63 | 1563,00 | 3,583 | |
| 232 | 6000 | 60 | 1875,00 | 3,200 |
* Tạm thời theo ГOCT 14963 - 69 của Liên Xô hay các tiêu chuẩn tương ứng của các nước khác cho đến khi có tiêu chuẩn Việt Nam tương ứng