Electromechanical servo system

The utility model relates to the technical field of integrated motors, in particular to an electromechanical servo system which comprises a machine shell, a motor and a driver. The two opposite cavity walls of the first installation cavity are provided with a penetrating hole allowing a motor output shaft to penetrate and a plurality of exhaust holes allowing air in the first installation cavity to be exhausted, an installation block is arranged on the side wall of the machine body, a second installation cavity allowing a driver to be installed is formed in the installation block, and the second installation cavity communicates with the first installation cavity. A plurality of air inlet holes communicating with the second mounting cavity are formed in the outer wall of the mounting block, a mounting cylinder is coaxially and rotationally connected to the hole wall of the penetrating hole, an impeller for promoting air in the first mounting cavity to be exhausted from the exhaust holes is coaxially arranged o