Stationary guide blade servo chuck of axial flow type compressor

The utility model relates to an auxiliary device for axial-flow compressors, which utilizes a servo valve (MOOG) to control the angular dimensions of stationary blades in an electro-hydraulic conversion mode. The utility model has the technical scheme that the auxiliary device for axial-flow compressors is composed of a clamping disk body and clamping disk adjusting bolts (2), wherein a U-shaped gap (3) is arranged on the clamping disk body (1) and is matched with a piston rod (4) of a stationary blade servo motor of an axial-flow compressor, and the clamping disk adjusting bolts (2) are arranged on the clamping disk body (1). When a stationary blade servo system of the axial-flow compressor fails, the axial-flow compressor doesn't need to be stopped, users only need to clamp the U-shaped gap on a groove at the middle part of the piston rod, which is matched with the U-shaped gap, of the stationary blade servo motor of the axial flow compressor to temporarily limit the action of the servo motor and then faults of the servo control system can be treated. After the faults of the servo system is treated, and a servo clamping disk is detached to restore the normal regulation of a machine set. The utility model completes the repair and the maintenance to the stationary blade servo system of the axial flow compressor under the precondition that the machine set runs normally without stopped.