Radial variable stiffness adjusting method and device of spherical hinge for suspension vibration reduction

The invention discloses a radial variable stiffness adjusting method and device for a spherical hinge for suspension and vibration reduction, the spherical hinge for suspension and vibration reduction comprises an outer sleeve, a mandrel and an elastic body, and the outer sleeve and the mandrel are integrally formed through the elastic body in a heat vulcanization mode to form the spherical hinge for suspension and vibration reduction; the limiting baffle ring is arranged on one side of the spherical hinge for suspension and vibration reduction, and the limiting gasket is arranged on the other side of the spherical hinge for suspension and vibration reduction, so that when the spherical hinge for suspension and vibration reduction is subjected to radial acting force, the limiting baffle ring and the limiting gasket can hinder deformation generated by the elastic body, and therefore the spherical hinge for suspension and vibration reduction generates variable rigidity in the radial direction. The limiting baff