RU2015146009A - DRIVE VIBRATION INSULATOR - Google Patents

Claims (5)

1. The vibration-isolating plate containing the frame, in which the elastic element of the plate type 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 the elastic element is placed plate type, 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 of the rod type, and in the central annular recess of the lid there is a layer of vibration-damping material, for example of polyurethane, on which a mounting plate is fixed for attaching a vibration-insulated object, the elastic element of the disk type contains at least two flat elastic coaxially arranged rings, upper and lower, connected between each other 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 of the lower the ring is attached a ring of friction material to create dry friction, providing 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 is used made from a composition comprising the following components, in their ratio, in 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 plate vibration isolator 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 a multilayer vibrodamping circular disk, consisting of at least three layers: the central layer is made of a hard vibrodamping material, for example, type "Agate", and symmetrically located relative to its upper and lower layers are made of a mesh frame, the cast elastomer such as polyurethane. 3. The plate-shaped vibration isolator according to claim 1, characterized in that the lower mounting plate is combined and consisting of three layers: the central layer is made of a rigid 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 size fractions of crumbs 1.5 ÷ 2.5 mm, filled with an elastomer, such as polyurethane. 4. The plate-shaped vibration isolator 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, while the top layer facing the mounting plate is made of elastomer, for example polyurethane, and the second layer facing the cover of the upper part of the frame is made of a hard vibration-damping material, for example, such as "Agate".