Spherical surface and cylindrical surface friction type support

The invention provides a spherical surface and cylindrical surface friction type support and relates to a friction type support. The spherical surface and cylindrical surface friction type support solves the problems that an existing friction swing support is prone to generating resonance, a variable frequency swing support is in point and surface contact for a long time, and consequently the vibration isolation and reduction effect is poor. A sliding groove is formed in the upper end face of a collecting steel plate, a sliding block is located in the sliding groove, the upper half part of the sliding block is in a semispherical shape, a semispherical groove matched with the sliding block is machined in the center of the lower end of the cover plate, the cover plate is supported by the upper end face of the sliding groove through the sliding block, the contour of the left half part of the sliding groove is rectangular, the contour of the right half part of the sliding groove is semicircular, a cylindrical groove is machined in the left half part of the sliding groove, a spherical groove is machined in the right half part of the sliding groove, the radius of the arc surface of the cylindrical groove and the radius of the arc surface of the spherical groove are identical, and the cylindrical groove and the spherical groove are in smooth transition connection to form a complete smooth surface. The spherical surface and cylindrical surface friction type support is used for vibration isolation of a large-span space structure.