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Development of lightweight fiber-reinforced composite pins for heavy load long pitch roller chains

机译：重型纤维增强复合销的开发重载长间距滚子链

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This article highlights the design and development of lightweight composite pins using carbon prepreg through the filament winding molding and heat-shrinkage fitting processes for heavy load long pitch roller chains. A structural analysis is performed to confirm the stress distribution of this composite pin based on the lamination structure. The stresses on the plates and pins of the roller chain are analyzed. The structural analysis was performed at maximum load, and the results endorsed the design of a pin with an inner diameter of 20 mm and an outer diameter of 34 mm to be optimum. According to the analysis results, prototypes are fabricated, and fiber volume fraction and porosity of the composite pin were evaluated. The composite pin was inserted into the steel hollow tube using heat shrinkage fitting process, and the damping ratios and weights of these pins were measured. The composites with a fiber volume of 60% and a porosity of 0.52% demonstrated a significant increase in damping ratio (27%) and an 18.6% reduction in weight compared to the steel pin. Overall, inserting the composite pin into steel chain is established as a novel approach to improve the structural design of the heavy load long pitch roller chain for attaining effective durability.
机译：本文突出了使用碳预浸料通过长丝绕组成型和热收缩装配工艺的轻质复合销的设计和开发，用于重载长距离滚轮链。进行结构分析以确认基于层压结构的该复合销的应力分布。分析了板和滚子链的销上的应力。结构分析以最大载荷进行，并且结果通过内径为20mm，外径为34mm的销的设计求出。根据分析结果，制造原型，并评估复合销的纤维体积分数和孔隙率。使用热收缩配合工艺将复合销插入钢中空管中，并测量这些引脚的阻尼比率和重量。纤维体积为60％和0.52％的复合材料表明，与钢销相比，减少阻尼比的显着增加（27％）和重量减少18.6％。总的来说，将复合销插入钢链中作为一种新的方法来提高重载长间距滚子链的结构设计，以实现有效耐用性。

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