Mechanical torque converter

The utility model discloses a mechanical torque converter. The mechanical torque converter comprises an input bevel gear, an outer bevel gear, a brake, a planet carrier, a plurality of planet bevel gears and a planet bevel gear shaft, wherein the planet bevel gears are respectively pivoted on the outer edge of the planet carrier along the radial direction of the planet carrier through the planet bevel gear shaft; the input bevel gear is meshed with the planet bevel gears on one side of the planet carrier; the outer bevel gear is meshed with the planet bevel gears on the other side of the planet carrier; the input bevel gear and the outer bevel gear are the same in tooth number; and the brake is used for limiting the rotation of the planet carrier. The mechanical torque converter can be applied to an automatic transmission and is high in transmission efficiency, compact in structure, easy to assemble and disassemble and convenient to maintain.