Spherical crown lining plate with vibration reduction function

The invention provides a spherical crown lining plate with a vibration reduction function, the spherical crown lining plate is made of duplex stainless steel and is composed of a plane cover plate, a bottom plate and vibration reduction elements, a groove used for installing a sliding plate is formed in the upper surface of the plane cover plate, at least one boss is arranged on the lower surface of the plane cover plate, at least one cavity is formed in the top face of the bottom plate, at least one cavity is in one-to-one corresponding guide fit with at least one boss, the vibration reduction element is placed in each cavity, a deformation gap is formed between each vibration reduction element and the cavity wall of the corresponding cavity, and when the bottom plate is covered with the plane cover plate, the end faces of the bosses make contact with the vibration reduction elements, and a vertical sliding gap is formed between the lower surface of the plane cover plate between the bosses and the top surfac