Axial fixing clamp for centering gas turbine gearbox

The utility model relates to an axial fixing clamp for centering a gearbox of a gas turbine, which comprises a top plate, a connecting plate, an adjusting plate and a ball bearing, and the wide edge of one side of the top plate is provided with an inward concave arc-shaped tangent plane; a strip-shaped hole is formed in the middle of the adjusting plate in the long edge direction, and one end of the adjusting plate is fixedly connected with the top plate through a connecting plate. The transmission shaft is provided with a shaft hole and two ball bearings, each ball bearing is fixed to the strip-shaped hole in a sliding mode through a fixing bolt penetrating through the shaft hole and horizontally moves in the length direction of the strip-shaped hole, and the device ensures that the transmission shaft does not axially move while rotating through the ball bearings. The problem that in the prior art, the centering precision is poor in the moving process of shaft parts is solved, the centering precision of a sh