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介绍电动平衡重式叉车的市场发展趋势,并根据其使用工况特点,提出电动平衡重式叉车轮胎在规格选取、负荷能力及滚动阻力等方面的设计要求,并给出相应的技术设计、花纹设计及施工设计等方面的建议。指出电动平衡重式叉车轮胎的发展方向。 相似文献
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分别采用传统工艺设计、计算机2D和3D软件分析以及传统工艺设计和计算机3D软件分析相互结合的方法,对全地形轮胎设计质量进行估算。结果表明:采用各种方法估算的轮胎设计质量与轮胎实际质量相差均不大;传统工艺设计估算对胎体材料计算非常准确,适合试生产前的施工设计;计算机2D软件分析方法最为快速;计算机3D软件分析方法对花纹块计算非常准确,适合与客户直观交流;传统工艺与3D软件分析相结合的方法仅用于分析,不推荐使用。 相似文献
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The effects of epoxidized natural rubber (ENR) as a compatibilizer, silane in situ modification, and filler hybrid on the properties of natural rubber/acrylonitrile–butadiene rubber blends were systematically studied. Phase change with the incorporation of ENR was quantitatively characterized via atomic force microscope quantitative nanomechanics technique. The results show that ENR could greatly reduce the dispersed domain size and increase the interfacial thickness; however, this compatibilizing effect reached the limit when ENR content was 5 parts per hundred rubber (phr). If the content is further increased, the redundant ENR start to gather at the interface and thus form a third phase. The macroscopic dynamic performance measurement was well in accordance with the microscale observation; the blend with 5 phr of ENR presented the lowest heat generation. The results also revealed that silane modification could significantly improve the overall properties, which benefited from better filler dispersal as evidenced by transmission electron microscopy. Finally, the effect of filler hybrid [silica and carbon black (CB)] was studied. It turned out that the blend containing 20 phr silica and 32 phr CB synchronously possessed high wet grip property, low rolling resistance, and high wear resistance, which makes it very promising for the high-performance tire application. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136, 47421. 相似文献
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介绍21.00-25 40PR无内胎港口工程机械轮胎的优化设计。结构设计:外直径 1 780 mm,断面宽 540 mm,行驶面宽度 510 mm,行驶面弧度高 44 mm,胎圈着合直径 629 mm,胎圈着合宽度 381 mm,断面水平轴位置(H1/H2) 0.868 5,胎面采用大八角花纹,花纹深度 35 mm,花纹饱和度 72%,花纹周节数 26。施工设计:胎面胶采用缠绕成型,胎体采用24层1870dtex/2V1和2层2100dtex/2V2锦纶66浸胶帘布,采用半芯轮式成型机成型、单模胶囊定型硫化罐硫化。成品轮胎试验结果表明,轮胎的充气外缘尺寸和物理性能满足国家标准要求,静负荷性能达到预期设计目标。 相似文献
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橡胶密炼车间会产生大量含有烟油、粉尘、恶臭的废气。采用原环保处理装置(臭氧氧化、氧化塔)对废气进行处理后,虽然满足排放要求,但对环境仍有一定影响。优化了处理方案,对密炼机卸料口和挤出部位收集的废气采用沸石转轮吸附+蓄热式焚化炉焚烧系统进行处理,废气处理率显著提高。 相似文献