Method for improving fatigue resistance performance of locomotive rubber-metal pad and locomotive rubber-metal pad

A method for improving fatigue resistance performance of a locomotive rubber-metal pad, wherein improving the fatigue resistance performance of the rubber-metal pact and preventing rubber and metal from being torn during running by changing a structure of the rubber and the metal of the rubber-metal pad and adjusting a shape and position relationship between the rubber and the metal,

• the shape and position relationship between the rubber and the metal is adjusted by adjusting a thickness of a rubber layer between the rubber and the metal of the rubber-metal pad in the normal direction of the rubber-metal pad so that the rubber layer has variable thickness,
• a rubber layer diameter of each layer is a variable diameter by adjusting a size of the rubber layer diameter between the rubber and the metal of the rubber-metal pad,
• the fatigue resistance performance of the rubber-metal pad is improved by adjusting the thickness and a diameter of the rubber layer,
• wherein the rubber layer of the rubber-metal pad adopts the variable-thickness structure, the rubber layer of the rubber-metal pad uses a middle layer as a reference layer, in the normal direction of the rubber-metal pad, the middle layer is thickest, the thickness of the rubber layer is gradually reduced from the middle layer to an upper or lower side respectively, and a top or bottom rubber layer is thinnest,
• wherein the size of the rubber layer diameter between the rubber and the metal of the rubber-metal pad is adjusted by adopting a variable-diameter rubber layer, the rubber layer diameter of a middle layer is smallest and the rubber layer diameter of an outer layer is larger.