12.00-20 20PR工程机械轮胎的设计

介绍12.00-20 20PR工程机械轮胎的设计.结构设计:外直径1 156 mm,断面宽274 mm,行驶面宽度246.5 mm,行驶面弧度高21.5 mm,胎圈着合直径509 mm,胎圈着合宽度216 mm,断面水平轴位置(H1/H2)0.875,采用越野花纹,花纹深度22.5 mm,花纹饱和度63.3％,花纹周节数28.施工设计:胎面由胎面胶、胎肩胶和胎侧胶组成,缓冲层采用2层930dtex/2V3锦纶6浸胶帘布,胎体采用14层1400dtex/3锦纶6浸胶帘布(8V1+6V2),钢丝圈采用Φ1.0 mm的回火胎圈钢丝,采用LCX-3型成型机成型、B型硫化机硫化.成品性能试验结果表明,轮胎的外缘尺寸和物理性能符合相应设计和国家标准要求.

Design of 12.00-20 20PR Off-The-Road Tire

A design of 12.00-20 20PR OTR tire was described.In structure design,the following parameters were taken:overall diameter 1156 mm,cross-sectional width 274 mm,width of running surface 246.5 mm,arc height of running surface 21.5 mm,bead diameter at rim seat 509 mm, bead width at rim seat 216 mm,cross-sectional level ratio 0.875,pattern depth 22.5 mm,block/groove ratio 63.3%,number of pattern pitch 28.In construction design, the following processes were taken:14 layers high strength 1400dtex/3 dipped nylon 6 cord(8 layers V1 6 layers V2) for carcass ply, and using the building drum diameter of 680 mm.The inflated overall dimensions and the physical properties of finished tire met the requirements of national standard.