The invention relates to the technical field of cranes, in particular to an anti-swing mechanism for a
tower crane, which comprises a lifting mechanism, a lifting
rope is arranged at the lifting end of the lifting mechanism, and a buffer mechanism for buffering the lifting
rope is further arranged on the lifting mechanism; the anti-swing effect of the
tower crane is effectively improved through a differential air supply strategy, a
cam drives a
piston barrel to supply air massively at
low frequency during
rope winding, the rigidity of an
air spring is rapidly improved,
inertia impact of a hung object is counteracted, and the swing amplitude is reduced; a pawl supplies air slightly in a high-frequency reciprocating mode during rope unwinding, loosening of a steel
wire rope is delayed, descending is prevented from being hindered, and
impact peak force is reduced; initial low-air-pressure flexible starting is combined with overload protection, starting
impact is reduced, stability is improved, pure
mechanical transmission does not need an electronic sensor, the rope winding and unwinding speed can be automatically adapted to adjust air supply, the device adapts to the complex environment, the hoisting efficiency is improved, meanwhile, the use and maintenance cost is reduced, and safety and reliability under the complex working condition are remarkably improved.