51×14.00-23 50PR矿用工程机械轮胎的设计

Design of 51×14. 00-23 50PR Mining OTR Tire

介绍51×14.00-23 50PR矿用工程机械轮胎的设计。结构设计:外直径1 282 mm,断面宽度390 mm,行驶面宽度312 mm,行驶面弧度高6 mm,胎圈着合直径579 mm,胎圈着合宽度280 mm,断面水平轴位置(H1/H2)0.793 3,花纹类型混合花纹,花纹周节数26,花纹饱和度24.22%。施工设计:胎面采用贴合/缠绕法成型,胎体采用18层高强度1870dtex/2锦纶66帘布,缓冲层采用两层1400dtex/2V3锦纶66帘布,胎圈采用三钢圈结构;成型采用胶囊反包成型机,硫化采用B型硫化机。成品轮胎充气外缘尺寸和物理性能分别达到设计和企业标准要求。

The design of 51 × 14.00--23 50PR mining OTR tire was described. In the structure design, overall diameter was 1 282 ram, cross-sectional width was 390 ram, width of running surface 312 mm, arc height of running surface was 6 mm,bead diameter at rim seat was 579 mm,bead width at rim seat was 280 mm,maximium width position of cross-section （H1/H2） was 0.793 3,mixed tread pattern was used,number of the pattern pitah was 26, and block/total ratio was 24.22%. In the struction design, tread was molded by laminating/winding process, 18 layers of high strength 1870dtex/2 nylon 66 cord were applied in the carcass ply, 2 layers of 1400dtex/2V3 nylon 66 cord were applied in the breaker ply, and three-ring structure was used for bead. The tire was built using turn-up bladder building machine and cured using type-B press. The inflated peripheral dimension and physical properties of the finished tires met the requirement of design and enterprise＇ s standard respectively.