RU2015146019A - COMBINED ELASTIC ELEMENT - Google Patents

Claims (6)

1. The combined elastic element containing the frame, in which the plate-type elastic element is installed, the frame is made of lower and upper parts, while the lower part of the frame consists of a base made in the form of a disk with an annular internal groove in which the lower elastic ring of elastic a dish-shaped element, and the upper part of the frame is made in the form of a cover, which is a disk with a central annular recess and rigidly connected by, for example, screws with an upper elastic ring of an elastic element a plate type, and in the central annular recess of the lid there is a layer of vibration-damping material, for example made of polyurethane, on which a mounting plate is fixed for attaching a vibration-insulated object, the plate-type elastic element contains at least two flat elastic coaxially arranged rings, upper and lower, interconnected by means of at least three elastic flat plates arranged obliquely with respect to the axis of the rings, the upper ring being connected to the cap and to the lower part a ring of friction material is attached to the bottom ring to create dry friction, which provides the necessary damping in the system, and flat elastic plates are located between the recesses, characterized in that, as the friction material of the ring attached to the lower part of the lower ring of the elastic element to create dry friction, material made from a composition comprising the following components, in their ratio, wt. %:  mixture of resol and novolac phenol formaldehyde pitches in the ratio 1: (0.2-1.0) 28 ÷ 34  fibrous mineral filler containing glass roving or a mixture of glass roving and basalt fiber in a ratio of 1: (0.1-1.0)  12 ÷ 19  graphite  7 ÷ 18  carbon black friction modifier in the form of a mixture with kaolin and silicon dioxide  7 ÷ 15  barite concentrate  20 ÷ 35  talc  1.5 ÷ 3.0 2. The combined elastic element according to claim 1, characterized in that in the lower part of the frame to the base, made in the form of a disk with an annular internal groove, there is additionally attached a lower mounting plate designed for installation on a floor with vibroactive equipment and made in the form of a multilayer a vibrodamping circular disk consisting of at least three layers: the central layer is made of a hard vibrodamping material, for example, “Agate” type, and symmetrically located has no upper and lower layers are made of a mesh frame, the cast elastomer such as polyurethane. 3. The combined elastic element according to claim 1, characterized in that at least a two-layer vibration damping structure is placed in the central annular recess of the lid, on which a mounting plate is fixed for attaching a vibration-insulated object, with the upper layer facing the mounting plate from an elastomer, such as polyurethane, and the second layer, facing the cover of the upper part of the frame, is made of a hard vibration-damping material, such as "Agate". 4. The combined elastic element according to claim 1, characterized in that the lower mounting plate is combined and consisting of three layers: the central layer is made of hard vibration-damping material, for example of the type "Agate" or "Anti-Vibrate", and the upper and the symmetrical ones the lower layers are made of crumb vibration damping materials: rubber, cork, polystyrene foam, nylon, foamed polymer, Shvim plastic compound with a size of fractions of crumb 1.5 ÷ 2.5 mm, filled with an elastomer, such as polyurethane, or made of Nogo damping material, wherein the used rubber sponge or needle punched material such as "shale shakers" based on silica or aluminoborosilicate fibers or nonwoven vibration damping material. 5. The combined elastic element according to claim 1, characterized in that the lower mounting plate is combined and consisting of three layers: the central layer is made of hard vibration-damping material, for example, of the Shvim type, and the upper and lower layers symmetrically located relative to it are made of crumbs of vibration damping materials: rubber, cork, polystyrene foam, nylon, foamed polymer, agate plastic compound with a size of fractions of crumbs of 1.5 ÷ 2.5 mm, filled with an elastomer, such as polyurethane.