Combined electro-hydraulic servo damping device testing machine

The invention discloses a combined electro-hydraulic servo damping device testing machine which comprises a test bed, a servo pump station is fixedly installed at the front end of the top of the testbed, a hydraulic oil tank is fixedly installed on the back face of the servo pump station, an energy accumulator station is fixedly installed on the right side of the hydraulic oil tank, and a frame is fixedly installed at the rear end of the top of the test bed. The two sides of the frame are fixedly connected with a front cross beam and a rear cross beam in a threaded mode correspondingly. According to the invention, the highly integrated design is adopted, one machine has multiple purposes, an anti-backlash mechanism is adjusted through ae cross beam, and the mode that the protection guideblock and the bearing guide block move along with the cross beam is adopted, so that stable lifting of the cross beam is ensured; meanwhile, out-of-plane instability is avoided during a damping wall test; with a feeding plate