RU2017115123A - DRIVE VIBRATION INSULATOR - Google Patents

Claims (2)

A plate vibration isolator containing a frame in which a resilient element of a plate type is mounted, the frame is made of lower and upper parts, the lower part of the frame consisting 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 of the plate type is placed 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 the elastic element tar of a radial type, moreover, in the central annular recess of the lid there is at least a two-layer vibration damping structure 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, made of a hard vibration-damping material, for example of the type "Agate", the elastic element of the plate type contains at least two flat elastic coaxially arranged rings, upper and lower, interconnected by 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 a friction material ring attached to the lower part of the lower ring to create a 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 elastic ring lementa to create a dry friction material is used, made from a composition comprising the following components in their ratio in wt.%: a mixture of resol and novolac phenol-formaldehyde resins in a ratio of 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 a friction modifier containing carbon black in the form of a mixture with kaolin and silicon dioxide 7 ÷ 15 barite concentrate 20 ÷ 35 talc 1.5 ÷ 3.0