讨论课的任务 与带传动比较,链传动有哪些特点? 链传动产生运动不均匀的原因是什么? 链传动在国内外的应用情况; 链传动应用实例分析
讨论课的任务 与带传动比较，链传动有哪些特点？ 链传动产生运动不均匀的原因是什么？ 链传动在国内外的应用情况； 链传动应用实例分析
要求及实施方法 每个班分三个组,选出组长 组长分配任务,查资料、讨论; 每个组选2~3位同学为代表做 Presentation; 每个组大约10分钟(包括听众提问时间); 用 Power Point或其他方式
要求及实施方法 每个班分三个组，选出组长； 组长分配任务，查资料、讨论； 每个组选2~3位同学为代表做Presentation； 每个组大约10分钟（包括听众提问时间）； 用PowerPoint或其他方式
Presentation Tell them what you are going to tell them Tell them Tell them what you have told them
Presentation Tell them what you are going to tell them Tell them Tell them what you have told them
中英文对照 Roller chains are probably the most common and are used in a wide variety of low-speed to high-speed drives Engineering steel chains are used in many low-speed, high-load drives. Silent chains are mostly used in high-speed drives
中英文对照 Roller chains are probably the most common and are used in a wide variety of low-speed to high-speed drives. Engineering steel chains are used in many low-speed, high-load drives. Silent chains are mostly used in high-speed drives
Roller chains Standard roller chains Multiple-strand roller chains Double-pitch roller chains Nonstandard roller chains
Roller Chains Standard roller chains Multiple-strand roller chains Double-pitch roller chains Nonstandard roller chains
Engineering Steel Chains Standard engineering steel chains Nonstandard chains
Engineering Steel Chains Standard engineering steel chains Nonstandard chains
Silent chains Standard silent chains Nonstandard silent chains
Silent Chains Standard silent chains Nonstandard silent chains
Construction of Typical Roller chain Bushing Pin H Roller Pitch, Link plate
Construction of Typical Roller Chain
the effects of chordal Action Polygonal Action w,(Constant N=no teeth Driven Driver Vel. chain=rw cos 0° wn,(Constant) 中由由 Driven Driver We=, c05 8o 1b) Vel choin=ra, cos 8°
Polygonal Action the Effects of Chordal Action
注意 当链轮齿数z1减少,链条节距川增曾长时, 传动的不均匀性和附加动载荷也随之增 大 ■在承载能力足够的条件下,尽量选用小 节距单排链或小节距多排链(高速重 载)
注意 当链轮齿数z1减少，链条节距p增长时， 传动的不均匀性和附加动载荷也随之增 大； 在承载能力足够的条件下，尽量选用小 节距单排链或小节距多排链（高速重 载）