Cross quadrature hyperboloid friction pendulum subtracts isolation bearing

The utility model discloses a cross quadrature hyperboloid friction pendulum subtracts isolation bearing, including last bedplate, middle slider and lower bedplate, wherein: the plane projection of going up the bedplate is the rectangle, and its top surface is plane, the two curved surface grooves s of lower part for being provided with the dog all around, the plane projection of lower bedplate is the rectangle, and its bottom surface is plane, the two curved surface grooves s of upper portion for being provided with the dog all around, middle slider plane projection be square, set up in last bedplate with down between the bedplate, the upper and lower surface of slider is the convex hyperboloid in the middle of just. Go up bedplate, middle slider and bedplate surface to surface contact in proper order down, and go up the bedplate and be cross quadrature shape with bedplate down, constitute cross quadrature hyperboloid friction pendulum subtracts isolation bearing. The bridge is indulged to subtracting shock