RU2019133992A - MESH DAMPER - Google Patents

Claims (6)

1. Mesh damper containing a housing made in the form of upper and lower thrust washers with shoulders and threaded holes, between which a cylindrical helical spring is fixed, while the thrust washers are made with a screw thread, which includes the spring coils pressed by flat washers through the screws, and inside the spring, coaxially and coaxially to it, there is a mesh damper made in the form of a cylindrical sleeve made of a volume mesh weave, and a damper device located inside it, and the ratio of the outer diameter D of the mesh damper to its height h is in the optimal range of values D / h = 0.73 ... 1.05, and the ratio of the average diameter D _{1 of the} spring element to the diameter of its wire d is in the optimal range of values D ₁ / d = 6.5 ... 13.6, and the ratio of the outer diameter of the body C to its height A is in the optimal range of values C / A = 0.68 ... 0.88, while the density of the mesh structure of elastic mesh elements is in the optimal range of values in 1.2 g / cm ³ ... 2.0 g / cm ³ , while the material of the wire of the elastic mesh elements is steel grade EI-708, and its diameter is in the optimal range of 0.09 mm ... 0.15 mm, damper the device consists of a sleeve made of a rigid elastic-damping material, for example, of the "Agat" type, in the central part of which, along its inner diameter, a profile damping ring is fixed, made of an elastomer, for example, cast polyurethane, and the ring has the form of two oppositely located surfaces of the truncated cone, converging in the central part of the ring with their bases of smaller diameter, and above the surfaces of the large bases of the conical surfaces of the ring, there are disks fixed by means of rods in threaded holes, respectively, of the upper and lower thrust washers, characterized in that between the discs of the damper device fixed by means of rods in the threaded holes, respectively, of the upper and lower thrust washers, inside the profile damper ring, an additional damping element is located. 2. Mesh damper according to claim 1, characterized in that the surfaces of the profile damping ring of the damper device in contact with the additional damping element are covered with a friction material made of a composition comprising the following components, at their ratio, wt. %: mixture of resole and novolac phenol-formaldehyde resins in a ratio of 1: (0.2-1.0) 8 ÷ 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 as a mixture with kaolin and silicon dioxide 7 ÷ 15% barite concentrate 20 ÷ 35% talc 1.5 ÷ 3.0%