Rolling linear guideway rated dynamic load and service life testing device

The invention discloses a rolling linear guideway rated dynamic load and service life testing device. Two supporting guide rail pairs are arranged on the top surface of a tool body in parallel, a testing table top is arranged on the supporting guide rail pairs, three to-be-detected guide rail pinboards are arranged on the upper surface of the testing table top in parallel, a to-be-detected guide rail pair is arranged on each to-be-detected guide rail pinboard, a sensor supporting seat is arranged on a sliding block of each to-be-detected guide rail pair, and each sensor supporting seat is provided with a displacement sensor, an image collection sensor, a vibrating sensor, a temperature sensor and a lower loading tool. Toothed bars are arranged on one side of the testing table top. A gantry is arranged above the testing table top in a crossing mode, three resistance apparatus is arranged at the top end of the gantry side by side, a gear supporting seat is arranged on one side of the testing table top, a gear shaft and a pin gear are arranged in the gear supporting seat, the pin gear is matched with the toothed bars, and the gear shaft is connected with a speed reducer and a motor. The device is capable of testing the rated dynamic load and the service life of a rolling linear guideway, high in testing efficiency, and real and reliable in testing data.