| 双胶料衬套的设计与研究 |
| Design and Research of Double Compound Bushing |
| 投稿时间：2021-06-04 修订日期：2021-06-04 |
| DOI：10.12136/j.issn.1000-890X.2022.07.0483 |
| 中文关键词: 双胶料衬套 自润滑 高阻尼 双料注射机 刚度 耐疲劳性能 降噪性能 |
| 英文关键词: double compound bushing self lubricating high damping double-material injection machine stiffness fatigue resistance noise reduction performance |
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| 中文摘要: |
| 介绍双胶料衬套的设计。双胶料衬套按功能分为自润滑型和高阻尼型2种：前者主簧胶料采用单胶料衬套胶料，具有强度高、耐久性能好的特点，撞块胶料采用天然橡胶/顺丁橡胶并用并添加内润滑剂，具有表面摩擦因数小的特点；后者副簧胶料不同于主簧胶料，采用天然橡胶/溶聚丁苯橡胶并用胶，实现双向阻尼特性的调节。试验结果表明：双胶料衬套采用双料注射机加工成型，其可从模具、胶料和注射工艺方面进行优化调整；自润滑型双胶料衬套的动静刚度可调性、耐疲劳性能和降噪性能均比单胶料衬套更具优势。 |
| 英文摘要: |
| The design of double compound bushing was introduced. Double compound bushings were divided into two types according to their functions：self lubricating type and high damping type.The main spring compound of the former adopted the compound of single compound bushing，which had the characteristics of high strength and good durability.The collision block compound which had the characteristics of small surface friction factor was made of natural rubber and butadiene rubber blend with an internal lubricant.The second spring compound of the latter was different from the main sping compound，which was the blend of natural rubber/solution styrene-butadiene rubber to realize the adjustment of two way damping characteristics.The test results showed that the double compound bushing was formed by double-material injection machine，which could be optimized and adjusted in terms of mold，compound and injection process.The fatigue resistance and noise reduction performance of the self lubricating double
compound bushing were better than those of the single compound bushing，and it’s easier to make adjustment on the dynamic and static stiffness. |
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