The invention discloses a double-tapered-angle magnetic liquid
shock absorber on the basis of a first-order
buoyancy principle, and belongs to the field of vibration of
mechanical engineering. The problem that due to multiple structural problems, an existing magnetic liquid damping
shock absorber cannot be applied to the
engineering practice is successfully solved. The double-tapered-angle magnetic liquid
shock absorber comprises a shell (1), a first permanent
magnet (2), an upper end cover (3), magnetic liquid (4), a
mass block (5), a second permanent
magnet (6) and a lower end cover (7). When the exterior vibrates, the
mass block (5) moves in a cavity, and the magnetic liquid (4) flows in a gap between the inner hole wall of the shell (1) and the
mass block (5), so that the energy is absorbed, and the aim of reducing the vibration is achieved; first-order
buoyancy formed by the first permanent
magnet (2) and the second permanent magnet (6) in the magnetic liquid enables a
frequency difference to be formed between the mass block (5) and the shell (1); and the vibration reduction efficiency is maximized.