港口跨运机用16.00R25全钢工程机械子午线轮胎的设计

Design on 16.00R25 All-steel Off-The-Road Radial Tire for Straddle Carrier

介绍港口跨运机用16. 00R25 IND-4★★★无内胎全钢工程机械子午线轮胎的设计。结构设计:外直径1502mm,断面宽422mm,行驶面宽度380mm,行驶面弧度高21mm,胎圈着合直径630mm,胎圈着合宽度298 mm,断面水平轴位置(H_1/H_2) 0. 8,采用条形花纹设计,花纹深度50 mm,花纹饱和度86. 3%,花纹周节数32。施工设计:胎面采用冷喂料挤出、缠绕法成型,胎体采用7×7×0. 22+0. 15HT钢丝帘线,1~#带束层采用3+9+15×0. 175+0. 15钢丝帘线,2~#和3~#带束层采用3+9+15×0. 22+0. 15钢丝帘线,4~#带束层采用3×7×0. 20HE钢丝帘线,采用一次法两鼓成型机成型、B型硫化机硫化。成品轮胎性能试验结果表明,轮胎充气外缘尺寸、物理性能和耐久性能均符合相应设计和国家标准要求。

The design on 16.00 R25 all-steel off-the-road radial tire for straddle carrier was described.In the structure design,the following parameters were taken:overall diameter 1 502 mm,cross-sectional width422 mm,width of running surface 380 mm,arc height of running surface 21 mm,bead diameter at rim seat 630 mm,bead width at rim seat 298 mm,maximum width position of cross-section(H1/H2)0.8,using rib pattern design,pattern depth 50 mm,block/total ratio 86.3%,and the number of pattern pitches32.In the construction design,the following processes were taken:cold-feeding extrusion and winding for tread,7×7×0.22+0.15 HT steel cord for carcass ply,3+9+15×0.175+0.15 steel cord for 1#belt,3+9+15×0.22+0.15 steel cord for 2#and 3#belt,3×7×0.20 HE steel cord for 4#belt,using one stage doubledrum builder to build tires and B type press to cure tires.It was confirmed by the test of the finished tire that the inflated peripheral dimension,physical property and endurance met the requirements of relative designs and national standards.