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| 29.5R25工程机械子午线轮胎的设计 |
| Design of 29.5R25 OTR tire |
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| DOI： |
| 中文关键词: 工程机械子午线轮胎；结构设计；施工设计；耐久性能 |
| 英文关键词: OTR tire；structure design；construction design；endurance |
| 基金项目: |
| 中图分类号:U463.341+.5/.6 |
| Author Name | Affiliation | | HU Yuan | Guizhou Tire Co.，Ltd | | HUA Song | Guizhou Tire Co.，Ltd | | JIANG Zhong-kai | Guizhou Tire Co.，Ltd |
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| 中文摘要: |
| 介绍29.5R25工程机械子午线轮胎的设计。结构设计：外直径 1 873 mm，断面宽 776 mm，行驶面宽度 659.6 mm，行驶面弧度高 35.3 mm，胎圈着合直径 629.92 mm，胎面采用宽横沟块状花纹。施工设计：钢丝圈采用11-17-12正六角形结构，安全倍数达到8.0；胎体采用7×7结构单层钢丝帘布，安全倍数达到6.6；带束层采用多角度4层钢丝帘布，安全倍数达到7.6。成品性能试验结果表明，轮胎充气外缘尺寸、耐久性能等均符合设计要求。 |
| 英文摘要: |
| A design of 29.5R25 OTR tire was described. In structure design，the following parameters were taken：overall diameter 1 873 mm，cross sectional width 776 mm，width of running surface 659.6 mm，radian height of running surface 35.3 mm，bead diameter at rim seat 629.92 mm，and wide cross-groove block pattern for tread.In construction design，the following processes are taken：11-17-12 positive hexagonal structure for wire ring，the safety factor 8.0；7×7 single steel cord for carcass ply，the safety factor 6.6；4-layer multi-angle steel cord for belt ply，the safety factor 7.6.It was confirmed by the test on finished tire that the inflated overall diameter and endurance met the design targets. |
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