Crank shaft connecting rod assembly

The utility model belongs to the technical field of machinery, especially, relate to a crank shaft connecting rod assembly. It has solved the unreasonable scheduling problem of prior art design. Two crank axles that this crank shaft connecting rod assembly set up including the symmetry, the crank axle connect through the crank pin between the inner in opposite directions, be equipped with on the crank pin and can relative crank pin circumferential direction and be located two crank axles connecting rod between the inner in opposite directions, the outer end of an arbitrary crank axle in two crank axles be equipped with from crank axle the inner to its outer end gradually toward the toper fitting surface of crank axle axial lead slope, be equipped with the parallel key constant head tank on the toper fitting surface, the inner in opposite directions at two crank axles has the inertia swing arm separately, the crank pin both ends wear to establish the one end in the inertia swing arm respectively, the other one