Resistance -increasing formula squeeze [oil] film damper of outer lane reel shaft neck area boss

The utility model provides a resistance -increasing formula squeeze [oil] film damper of outer lane reel shaft neck area boss, includes attenuator axle journal and attenuator outer lane, and the outer lane suit leaves the oil film clearance between the two on the axle journal, and the outer lane middle part is equipped with feed -tank and fuel feeding hole, and the oil film clearance communicates with each other through feed -tank and fuel feeding hole, reel shaft neck surface is equipped with the boss on the inside wall of outer lane, boss quantity is a plurality of, sets up along axle journal or outer lane circumference equipartition respectively, the boss parallels with the axial direction line of axle journal or outer lane respectively on length direction, the boss is axial through on axle journal surface or outer lane inside wall respectively, the boss top surface is the arc surface, and its centre of a circle lies in on the axial direction line of axle journal or the axial direction line of outer lane.