This utility model discloses an electric push rod mechanism for
agricultural machinery braking, including a push rod fixing device, a
crankshaft fixing device, an electric
brake push rod, a
crankshaft connecting device, a
crankshaft, a mechanical connecting rod, a
brake connecting rod, and a
drum brake disc. The electric push rod mechanism provides power in both positive and negative directions via
voltage. The lifting rod at the front end of the electric
brake push rod transmits power to the crankshaft connecting device, which then drives the crankshaft to rotate, transmitting power to the mechanical connecting rod. The mechanical connecting rod then transmits power to the brake connecting rod, which in turn transmits power to the
drum brake disc. The
drum brake disc can achieve braking effect according to the movement state of the push rod, thereby improving the safety and efficiency of
agricultural machinery braking.