The invention discloses a silent and dust-proof sealing chain, which comprises an inner chain plate, an outer chain plate, a sleeve, a pin shaft and a roller. The inner chain plate is formed with at least covering the chain plate body, and the hardness is lower than the inner layer of the inner chain plate body. Preferably, the outer surface of the cover layer of chain plate body; cover layer is located on the side of the chain plate body thickness of 0.50 ~ 1.50mm; cover layer is located on the chain plate body edge surface thickness of 0.10 to 0.30mm; the coating layer is made of vulcanized rubber layer, a plastic layer, reinforced plastic layer or a nylon layer. The beneficial effect of the invention is that the low hardness covering layer is formed on both sides of the inner chain plate, which not only acts as a sealing member, but also has the effect of vibration absorption and noise reduction, simplifies the structure of the sealing chain, and has long service life, low noise, low manufacturing and use cost. Compared with the sealed chain with the O type seal ring, the assembly efficiency can be increased by more than 50%, the service life can be increased by about 15%, the noise can be reduced by 3~5 dB, and the comprehensive production cost can be reduced by about 10%.
【技术实现步骤摘要】
一种静音防尘密封链条
本专利技术涉及动力传动用套筒滚子链链条,特别是一种静音防尘密封链条。
技术介绍
套筒滚子链链条由内链板、外链板、套筒、销轴、滚子组成单列或多列结构,销轴固定在外链板上,套筒固定在内链板上,滚子与套筒间和套筒与销轴间均形成同轴可转动的连接结构,链条与链轮的啮合主要为滚动摩擦,因而套筒滚子链重量轻、寿命长、成本低,在动力传动中应用广泛,如现有摩托车和自行车通常都是采用单列套筒滚子链的链条及链轮作为动力传动构件。链传动的失效形式主要有链板疲劳破坏;滚子、套筒的冲击疲劳破坏、销轴与套筒的胶合、链条销轴磨损、过载拉断等。由于链传动的啮入冲击首先由滚子和套筒承受。在反复多次的冲击下,经过一定循环次数,滚子、套筒可能会发生冲击疲劳破坏。而磨损是机械传动的必然现象,然而滚子与套筒、以及套筒与销轴之间磨损后产生的间隙,加剧了冲击影响,并出现明显的噪声;而冲击的后果也会导致磨损加剧。特别是在开式传动、使用环境条件恶劣和润滑不良时,链条铰链磨损后链节变长,还容易引起跳齿或脱链,从而急剧降低链条的使用寿命。现有摩托车的链传动属于典型的开式传动,且使用环境条件恶劣,润 ...
【技术保护点】
一种静音防尘密封链条,包括内链板(1)、外链板(2)、套筒(3)、销轴(4)和滚子(5),其特征在于,所述内链板(1)上形成有至少覆盖链板本体,且硬度低于内链板本体的覆盖层(1a)。
【技术特征摘要】
1.一种静音防尘密封链条,包括内链板(1)、外链板(2)、套筒(3)、销轴(4)和滚子(5),其特征在于,所述内链板(1)上形成有至少覆盖链板本体,且硬度低于内链板本体的覆盖层(1a)。2.根据权利要求1所述的静音防尘密封链条,其特征在于,所述覆盖层(1a)位于链板本体侧面的厚度为0.50~1.50mm。3.根据权利要求...
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。