Flexible transmission device for automobile engine test run

The invention belongs to the technical field of engines, and provides an automobile engine test run flexible transmission device which comprises a connecting plate used for being connected with an engine flywheel, an output shaft used for being connected with a rack and an elastic block, the elastic block is arranged between the connecting plate and the output shaft, and the elastic block is connected with the connecting plate and the output shaft. Due to the fact that the elastic block is arranged between the connecting plate and the output shaft, the automobile engine test run flexible transmission device can effectively solve the engine bush burning fault caused by vibration. 本发明属于发动机技术领域，提供一种汽车发动机试车挠性传动装置，包括用于连接发动机飞轮的连接板、用于连接台架的输出轴以及弹性块，弹性块设置于连接板和输出轴之间，弹性块分别与连接板和输出轴连接。由于在连接板和输出轴之间设置了弹性块，通过本发明的汽车发动机试车挠性传动装置可有效解决因震动导致的发动机烧瓦故障。