强化预拉对链条疲劳寿命的影响  

Influence of Strengthening Preloading on Fatigue Life of Chain

作　　者：王丽丽[1] 樊磊[1] 张健聪[1] 

机构地区：[1]杭州东华链条集团有限公司,浙江杭州311102

出　　处：《机械传动》2016年第11期97-99,共3页Journal of Mechanical Transmission

摘　　要：强化预拉是一种经济有效且易于实现的链条强化措施,能较大幅度地提高链条的疲劳强度,可以替代普通预拉,而普通预拉则不能实现强化预拉的功能。链条在实际制造过程中,为了保证在正常使用时不产生因静强度影响而发生早期的断裂,失效必须对链条进行预拉;而预拉工艺应根据链条使用工况的不同,有针对性地进行工艺试验验证,选择科学、合理的预拉载荷和预拉时间。The strengthening preloading is an economic, effective and easy to implement strengthening measure, which can greatly improve the fatigue can not greatly improve the fatigue strength of strength of chain, and it can replace ordinary preloading, which chain. In the chain manufacturing process, the chains must be preloaded to ensure early broken, because of chains have not enough static strength, will not happen in normal use. The preloading process should be according to the different working condition of the chain, though process test, choosing science, reasonable preloading time.

关 键 词：强化预拉 滚子链 不锈钢链 预拉载荷 预拉时间 

分 类 号：TH132.45[机械工程—机械制造及自动化]