355/50R22.5电动公交车专用无内胎宽基低断面全钢载重子午线轮胎的设计  

Design on 355/50R22.5 Tubeless Wide Base Low Profile Truck and Bus Radial Tire for Electric Bus

作　　者：张颖 徐钦 王泽君 ZHANG Ying;XU Qin;WANG Zejun(Zongce Rubber Group Co.,Ltd,Hangzhou 310018,China)

机构地区：[1]中策橡胶集团股份有限公司,浙江杭州310018

出　　处：《轮胎工业》2023年第6期342-345,共4页Tire Industry

摘　　要：介绍355/50R22.5电动公交车专用无内胎宽基低断面全钢载重子午线轮胎的设计。结构设计:外直径932 mm,断面宽365 mm,行驶面宽度310 mm,行驶面弧度高13 mm,胎圈着合直径571.5 mm,胎圈着合宽度311 mm,断面水平轴位置(H1/H2)0.85,胎面花纹采用4条曲折主花纹沟,变节距设计,花纹深度18 mm,花纹饱和度80%,花纹周节数54。施工设计:胎面和胎侧均采用三复合结构;胎体采用3+9+15×0.22+0.15钢丝帘线,带束层采用3层带束层+0°冠带层设计,1#和2#带束层采用3+8×0.33ST钢丝帘线,3#带束层采用5×0.35HI钢丝帘线,0°冠带层采用3×7×0.20HE钢丝帘线;采用三鼓一次法缠绕成型机成型,热板式硫化机低温硫化。成品轮胎性能试验结果表明,轮胎充气外缘尺寸、强度性能和耐久性能均符合国家标准要求,高速性能、滚动阻力和接地印痕符合企业标准要求。The design on 355/50R22.5 tubeless wide base low profile truck and bus radial tire for electric bus was introduced.In the structure design,the following parameters were taken:overall diameter 932 mm,cross-sectional width 365 mm,width of running surface 310 mm,arc height of running surface 13 mm,bead diameter at rim seat 571.5 mm,bead width at rim seat 311 mm,and maximum width position of cross–section(H1/H2)0.85.Four zigzag main groove patterns were adopted for the tread with a pattern depth of 18 mm,a block total ratio of 80%,and a number of pattern pitches of 54.In the construction design,the following processes were taken:the tread and sidewall adopted a three-component composite structure,the carcass adopted 3+9+15×0.22+0.15 steel cord,the belt adopted the design of 3 layers of belt with a layer of 0°cap ply with 3+8×0.33ST steel cord for 1#and 2#belt,5×0.35HI steel cord for 3#belt,and 3×7×0.20HE steel cord for 0°cap ply.A three-drum single-stage winding building machine was used to build tires and a hot plate vulcanizing press was used to cure tires under low temperatures.The test results of the finished tire showed that,the inflated peripheral dimension,strength and durability met the requirements of national standards,and the high-speed performance,rolling resistance and footprint met the requirements of enterprise standards.

关 键 词：电动公交车 无内胎 低断面 全钢载重子午线轮胎 结构设计 配方设计 施工设计 成品轮胎性能 

分 类 号：U463.341.6[机械工程—车辆工程] U463.341.59[交通运输工程—载运工具运用工程]