The disclosed internal-gear tamping tool for horizontal coke oven comprises: a vehicle frame, a gearing with symmetrical two sets mechanisms, a clamp-hammer device, a stop-hammer device, a guiding device, an actuator, and tamping hamper. Wherein, using a motor to drive a small speed reducer; driving an L-shaped gear in drive box by engaging of a couple of external gears; and driving the cam friction gear group and frictional wheel group by the double output axis of L-shaped gear box. This invention overcomes the defects in prior art, realizes single-hammer regulation conveniently, and needs low cost. |