轻轨,属型钢系列,是煤矿支护专用钢材,主要用于各煤矿铺设轻型车辆轨道及矿用机械轨道使用。相应参数如下
轻轨执行标准:GB/T 11264-2012 JX001-1998 2011JX29 | ||||||||
项目轻轨(㎏/m) | 9 | 15 | 18 | 22 | 24 | 30 | ||
截面尺寸 | 轨高 | mm | 63.50 | 79.37 | 90.00 | 93.66 | 107.00 | 107.95 |
底宽 | 63.50 | 79.37 | 80.00 | 93.66 | 92.00 | 107.95 | ||
头宽 | 32.10 | 42.86 | 40.00 | 50.80 | 51.00 | 60.33 | ||
头高 | 17.48 | 22.22 | 22.22 | 26.99 | 32.00 | 30.95 | ||
腰高 | 35.72 | 43.65 | 42.30 | 50.00 | 58.00 | 57.55 | ||
底高 | 10.30 | 13.50 | 15.70 | 16.67 | 17.00 | 19.45 | ||
腰厚 | 5.90 | 8.33 | 10.0 | 10.72 | 10.90 | 12.30 | ||
截面面积(c㎡) | 11.39 | 19.33 | 23.07 | 28.39 | 31.24 | 38.32 | ||
通常长度(m) | – | – | – | 7--12 | 7--12 | 7--12 | ||
理论重量(kg/m) | 8.42 | 15.20 | 18.06 | 22.30 | 24.46 | 30.10 | ||
允许偏差 | 螺孔直径 | (mm) | ±0.75 | ±0.75 | ±0.75 | ±0.75 | ±0.75 | ±0.75 |
螺孔间距 | ±0.75 | ±0.75 | ±0.75 | ±0.75 | ±0.75 | ±0.75 | ||
螺孔端距 | ±0.75 | ±0.75 | ±0.75 | ±0.75 | ±0.75 | ±0.75 | ||
弯曲度 | 0.30% | 0.30% | 0.30% | 0.30% | 0.30% | 0.30% |