为保证柴油机具有良好的性能 ,喷油泵提前器在安装前必须对其转速和提前角度等多项性能指标进行调整试验。试验时 ,喷油泵提前器与试验台之间是通过一种专用联轴器联接的 ,其联接性能的好坏直接影响试验的可靠性和正确性。因此 ,联轴器在调试中起着十分重要的作用。目前 ,试验 In order to ensure that the diesel engine has good performance, the fuel injector advancer must be adjusted and tested for a number of performance indexes such as its rotation speed and advance angle before installation. During the test, the fuel injection pump advancer and the test bench are connected through a special coupling, and the performance of the coupling directly affects the reliability and correctness of the test. Therefore, the coupling plays a very important role in debugging. At present, test