BUSHING VIBRATION ISOLATOR AND METHOD OF ITS MANUFACTURING Russian patent published in 2015 - IPC F16F1/362 F16F3/08 

FIELD: machine building.

SUBSTANCE: vibration isolator comprises a circular mounting flange (1), a pair of cone-shaped resilient damping elements (2), bushes with dish flanges (3, 4), a stud (5) with threaded ends. The resilient damping elements are made from a coil (6) wound from springy metal wire with turn pitch being equal to the coil diameter, and pressed into a cone shape. The coil is made from a pair of interconnected links with different diameters of springy wire which are wound in coils of different diameter, and is laid with tension crosswise. The link with greater coil diameter is laid over the link with smaller diameter. The method to produce such a vibration isolator includes the following operations. Both coils are stretched up to the turn pitch equal to the diameter of the respective coil. The coil of smaller diameter is wound onto a mandrel, then the coil of greater diameter is wound over it crosswise to form a resilient barrel-like element with further moulding into a cone-shaped resilient damping element. The bigger and the smaller bases of the resilient damping elements are fixed to respectively the mounting circular flange and the inner surfaces of dish flanges which have been treated by sand, with the help of sound glue joint with pressing by the stud. The cone-shaped resilient damping elements are impregnated by lubricating mixture.

EFFECT: higher reliability, longer life of a vibration isolator, protection against vibration in cross directions.

2 cl, 6 dwg