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十字联轴节是机械中广泛应用的传动装置。由于单十字联轴节的传动比不是常数,所以当主动轴输入一个恒定的转矩时,输出的却是一个变化的转矩。为了使主从动轴间的传动比是常数或接近于常数,必须根据等速条件把若干个单十字联轴节组合成多十字联轴节。一般文献上仅对双十字联轴节的等速传动设计进行分析,而对两个以上的单十字联轴节组合未作介绍。在实际应用上,尤其是一些进口机械上可以看到由两个以上单十字联轴节组成的多十字联轴节。它们适用于作距离较远或绕过障碍物的空间传动,结构简单紧凑,价格便宜,又能保持等速传动。而且由于它
Cross coupling is widely used in mechanical transmission. Due to the single cross coupling ratio is not a constant, so when the input shaft a constant torque, the output is a variable torque. In order to make the transmission ratio between master and slave shafts constant or close to constant, several single cross-couplings must be combined into multiple cross-couplings according to constant speed conditions. In the general literature, only the design of a constant speed transmission with double cross joints is analyzed, but no combination of two or more single cross joints is described. In practical applications, especially on some imported machinery, it is possible to see more cross-type couplings composed of two or more single cross-type couplings. They are suitable for space drives that are farther apart or bypass obstructions and are simple, compact, inexpensive and maintain constant speed. And because of it