Testing device suitable for detecting integrated performance of multi-model precision speed reducer

The invention discloses a testing device suitable for detecting integrated performance of multi-model precision speed reducers. The testing device can be used for testing performances of the precision speed reducer such as return difference, torsional rigidity, vibration characteristic, angle transmission error, torque and service life, achieves fast replacement of the precision speed reducers of different models through a mobile sliding platform, and achieves stepless loading through a hydraulic loading device. Compared with the ordinary test stand which can be only used for testing one kind of performance of a speed reducer of a model, the testing device greatly improves testing precision, increases testing efficiency, reduces testing cost of the multi-model precision speed reducers, and has good application prospect.