Electric-transmission bulldozer walking driving device

The utility model discloses an electric-transmission bulldozer walking driving device, which belongs to the technical field of engineering machinery and comprises an engine, a generator, a power inverter, three motors, three groups of bidirectional clutch assemblies and a differential steering mechanism. Each bidirectional clutch assembly consists of a front clutch and a rear clutch, an output shaft of each motor is connected with an input shaft of the corresponding bidirectional clutch, the bidirectional clutch assemblies are connected with the differential steering mechanism, and the motors are connected with the generator. The electric-transmission bulldozer walking driving device realizes power distribution during linear walking and turning by the aid of variable-frequency driving technology and control of combination and separation of the bidirectional clutches, and is fewer in components, compact in structure, high in transmission efficiency, simple in control and low in manufacturing cost.