| 摘要 |
FIELD: machine building.SUBSTANCE: vibration isolator comprises a case, a base, a spring, top and bottom spring stroke limiters made of elastomer, and a threaded bush to couple the said spring with the body whose vibrations are to be damped. The said case is rigidly coupled with the base made as a round centre pad. The bottom spring stroke limiter of cylindrical shape rests upon the centre pad. The spring interacts with the top and bottom stroke limiters via the lower thrust barrel and the top cover enclosing the spring, the cover is rigidly connected with the threaded bush. The cover comprises the top spring stroke limiter made as a cylindrical bush enclosing the cover from above. The threaded bush comprises a screw to couple the spring with the body to be isolated in terms of vibration. The body in its upper part is coupled with the cover, on the end surface of which there is a resilient dynamic limiter of the body movement made from elastomer. The cover is provided with a hole for the injection of a ductile lubricant, e.g. solid oil, into the system. Two additional damping elements are set in the axial hole of the bottom spring stroke limiter, one of the elements is made as a cylinder-conic bush and made from polyurethane and the other one is set inside the first element, is of cylindrical shape and made as resilient gauze. A damper made from elastomer is set inside the spring.EFFECT: higher vibration isolation efficiency.1 dwg |
