Friction force calibration mechanism for front wheel turning test of unmanned aerial vehicle

The utility model discloses an unmanned aerial vehicle front wheel turning test friction force calibration mechanism, which comprises a turning fixture, a load loading device arranged on the turning fixture, and a to-be-tested undercarriage arranged on the load loading device, an orthogonal guide rail is arranged at the top of the load loading device, and the to-be-tested undercarriage is arranged on the orthogonal guide rail. A rotary bearing is arranged between the orthogonal guide rail and the undercarriage to be tested, the bottom of the rotary bearing is connected with the orthogonal guide rail, the lower end of the undercarriage to be tested is installed on a wheel shaft support, and the rotary bearing is connected with the wheel shaft support through a rotary shaft bearing plate. According to the utility model, the working condition of the undercarriage in a loaded state can be truly simulated, the friction force of the swivel bearing in a turning test can be effectively measured, and the rapid calibra