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附图 滚子链的传动布置形式 (a)推荐使用(b)容许使用 (c)不推荐使用1 滚子链的选择 滚子链传动方式的初步确定往往是通过有关图表来解决。对一种特定的使用场合,虽然有几种链可供选择,一般来说在规定的速度下能传递所需要功率的最小节距的单排链是一种最经济的选择。较小的节距的链能适应较高的速度,如因速度和空间传动尺寸所限,不能采用大节距时还可采用多排链。如果两链轮中心距大而速度是中慢速度,那么采用双节距链是一种比较好的选择。2 链的长度 链的长度只能是节距的整数倍。链传动设计中应考虑采用偶数节,因为奇数节要求有一个过渡链节。过渡链节应该尽可能避免,
(A) Recommended use (b) Permitted to use (c) Not recommended 1 Roller chain selection The initial determination of roller chain transmission is often solved by referring to the chart. For a particular application, although there are several chains to choose from, it is generally the most economical option to deliver a single row of chains of the minimum pitch for the required power at a defined rate. Smaller pitch chain to adapt to higher speeds, such as due to speed and space transmission size constraints, can not use a large pitch can also be used when the multi-row chain. If the two sprocket center distance is large and slow speed, then the use of double pitch chain is a better choice. The length of the chain of 2 chains can only be an integral multiple of the pitch. Even-numbered sections should be considered for chain drive design because odd-numbered sections require a transitional link. Transition links should be avoided as much as possible,