Speed reducer detection device

The utility model discloses a speed reducer detection device, which comprises a detection table, a driving motor, a load device and a fixed seat, a lifting cavity is arranged in the fixed seat, two pairs of hydraulic lifting cylinders are arranged in the lifting cavity, and an adjusting cavity is arranged in the fixed seat and located at the bottom end of the lifting cavity. A driving threaded rod and a driven threaded rod are rotationally connected into the adjusting cavity, the outer wall of the driving threaded rod and the outer wall of the driven threaded rod are each in threaded connection with a pair of sliding blocks, and the bottom ends of the two pairs of hydraulic lifting cylinders penetrate through the lifting cavity to be fixedly connected with the top ends of the sliding blocks. The hydraulic lifting cylinder drives the mounting base to slide, the position of the mounting base is adjusted, the height of the mounting base can be adjusted through lifting of the hydraulic lifting cylinder, and there