FIELD: machine building.
SUBSTANCE: invention relates to machine building. Vibration isolator includes a housing, a base in the form of round center plate, a spring and threaded sleeve to connect spring with vibration isolated object. Lower and upper spring stroke limiters are made of elastomer. In the axial hole of the lower spring stroke limiter there are two additional damping elements, one of which has the shape of cylinder-conic bushing and is made from polyurethane, and the other is located inside the first, has a cylindrical shape and is made of elastic mesh. Inside the spring additional damper in the form of an elastic mesh element is arranged. Spring contains body made out of helical hollow steel tube. Additional resilient steel tube is installed inside the casing coaxially with a gap. A friction element is placed in the gap between the tubes and is made from polyethylene having higher thermal expansion coefficient as compared to steel. Surfaces of the casing and the additional resilient steel tube touch the surfaces of the friction elements. Screw solid resilient pin is set coaxially to the casing. Friction elements are made tubular.
EFFECT: higher efficiency of vibration isolation is achieved.
1 cl, 2 dwg
