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| 315/70R22.5 NHS小型轮式挖掘机全钢工程机械子午线轮胎的设计 |
| Design of 315/70R22.5 NHS All-steel Off-The-Road Radial Tire for Small Wheel Excavator |
| Received:October 11, 2021 Revised:October 11, 2021 |
| DOI：10.12135/j.issn.1006-8171.2022.08.0464 |
| 中文关键词: 小型轮式挖掘机；全钢工程机械子午线轮胎；牵引型有向花纹；结构设计；施工设计 |
| 英文关键词: small wheel excavator；all-steel off-the-road radial tire；traction oriented pattern；structural design；construction design |
| 基金项目: |
| 中图分类号: |
| Author Name | Affiliation | E-mail | | peiquanhua* | Aeolus Tyre Co., Lt | pqh1984@126.com | | wangxiaojuan | Aeolus Tyre Co., Lt | | | wangruofei | Aeolus Tyre Co., Lt | | | zhouyabing | Aeolus Tyre Co., Lt | |
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| 中文摘要: |
| 介绍315/70R22.5 NHS 22PR小型轮式挖掘机全钢工程机械子午线轮胎的设计。结构设计：外直径 1 023 mm，断面宽 315 mm，行驶面宽度 310 mm，行驶面弧度高 9 mm，胎圈着合直径 570.5 mm，胎圈着合宽度 247 mm，断面水平轴位置（H1/H2） 0.87，胎面采用牵引型有向花纹，花纹深度 21 mm，花纹周节数 27，花纹饱和度 45%。施工设计：胎体采用3＋8×0.21ST钢丝帘线，带束层采用2层3＋8×0.33HT钢丝帘线，胎面胶采用高耐磨性能专用配方，采用两鼓一次法成型机成型，采用B型双模硫化机硫化。成品轮胎性能试验结果表明，轮胎的充气外缘尺寸、物理性能和耐久性能均达到相应设计和国家标准要求。 |
| 英文摘要: |
| The design of 315/70R22.5 NHS 22PR all-steel off-the-road radial tire for small wheel excavator was introduced.In the structural design，the following parameters were taken：overall diameter 1 023 mm，cross-section width 315 mm，width of running surface 310 mm，arc height of running surface 9 mm，bead diameter at rim seat 570.5 mm，bead width at rim seat 247 mm，maximum width position of cross section（H1/H2） 0.87，using traction oriented pattern，pattern depth 21 mm，number of pattern pitches 27，and block/total ratio 45%.In the construction design，the following processes were taken：using 3＋8×0.21ST steel cord for carcass，2 layers 3＋8×0.33HT steel cords for belt，special high wear resistance compound for tread，using two-drum one-stage building machine to build tire and B type dual-mode curing press to cure tire.The test results of finished tire showed that the inflation peripheral dimension，physical properties and durability of the tire met the requirements of the corresponding design and national standards. |
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