Patent RU-2651397-C1 (RU)
Inventor: Kochetov Oleg Savelevich
IPC: F16F15/08
Filed: 2017-08-04
Granted: 2018-04-19
Abstract: FIELD: machine building. 
     SUBSTANCE: invention relates to machine building and may be used for vibration isolation of process equipment. Rubber vibration isolator for the equipment is made in the form of a vibration isolator with parallel-connected resilient-damping elements and contains a frame connecting two resilient elements of a different design but of equal rigidity installed in parallel therein. Frame is made in the form of two supporting horizontal plates, resting against the left and right resilient damping elements, respectively. Frame horizontal plates are rigidly connected to the vertical plates, which in the frame lower part are connected together by the base plate, on which through the vibration damping gasket and a vertical post a platform for the vibration-insulated object is installed, wherein both resilient elements, the left and the right, are installed on the common base. Left resilient element is installed on a common base through the vibration damping gasket, and the right resilient element is through the vibration damping gasket, which is made identical to the vibration damping gasket fixed in its upper part and located under the frame horizontal supporting plate. Left resilient element is made in the form of an elastic damping element, which is a damper comprising body and piston arranged therein, the body is made in the form of a cylinder with a bottom, in which a piston is located in the form of a cup with parallel to each other and coaxial to the body upper and a lower collars, which are disposed relative to the body inner surface with a gap. Between the collars a friction material is located. Spring located between the piston and the body bottom rests against the piston lower surface, wherein the cavity between the piston and the body bottom, in which the spring is located is filled with a friction material with a higher friction coefficient. Piston upper collar upper surface rests against the elastic ring connected to the locking member made, for example, in the form of a locking ring fixed in the groove of the body cylinder inner surface. Through the resilient ring the locking element contacts the piston upper collar upper surface, holding it in its original state, and as the located between the piston collars friction material, a sintered friction material based on copper containing zinc, iron, lead, graphite, vermiculite, copper, chromium, antimony and silicon is used. Located between the piston and the body bottom spring is made in the form of a conical spring, which turns are covered with a vibration damping material, for example, polyurethane. Right resilient element is made in the form of the rubber vibration isolator for equipment containing a body and interacting with the object elastomeric resilient element, body is made in the form of a flange having a square shape, rigidly connected to the elastomer, wherein on the flange fasteners in the form of located at the flange corners holes are made. Elastomer side surface profile is made cylindrical or hyperbolic in the form of a rod of equal resistance, having constant rigidity in the axial and transverse directions. Square shaped flange is mounted on a mesh damper, which contains a base made in the form of a vertical cylinder with fasteners. 
     EFFECT: increase in the vibration isolation effectiveness. 
     1 cl, 4 dwg