Hanging test device employing flexible fixed connection method

The utility model provides a hanging test device employing a flexible fixed connection method, comprising a gantry, a force measuring assembly, a transition rack and a lateral adjusting mechanism. A force bearing plate is fixed on the lower end face at the top end of the gantry, the force measuring assembly comprises a loose flange, a spherical joint, a locking nut, a bidirectional screw rod and a thrust sensor, is arranged coaxially and is in coaxial connections with a to-be-tested engine via the transition rack, and the lateral adjusting mechanism is connected with a gantry upright column and a rear flange of the to-be-tested engine to adjust the central axis of the to-be-tested engine. The hanging test device of the utility model employs an axial and lateral flexible fixed connection method, can bear the thrust and side force generated during the process of simulating the heat run of the engine, and when a ground simulation test is carried out, utilizes a simulation shrinkage ratio engine to carry out an upright ignition test, at the same time, measures the parameters, such as thrust, pressure, gas jet temperature field, etc.