| 摘要 |
FIELD: machine building.SUBSTANCE: vibration isolator comprises base, casing, resilient element and elastically damping screen elements. Two guide cylindrical bushes jointed by common ring bottom are secured at casing base by a ply of moulded polyurethane. Said guide bushes are made of rigid damping material, for example, "Agat" type elastron. Pack of plate-like resilient elements resting by bottom surface on ring bottom is aligned with guide bush and made of antifriction material and by top nearing surface on the cover arranged around moulded polyurethane ply with clearance. On the bush collars the resilient rings are secured, they act as resilient limiters of movable parts of the vibration isolator. Damping screen elements are arranged between plate-like resilient elements. By means of a bolt the cover is connected to a load bearing threaded element, its head being covered by the cast polyurethane layer. Axisymmetric to the bolt a cylindrical spring is installed, it rests by bottom support surface against the ring bottom, and by top support surface - against bottom surface of the thread element.EFFECT: higher efficiency of damping, simplified design and assembly.1 dwg |
