Elastic ring type damper with metal rubber

Abstract

An elastic ring type damper with metal rubber comprises an elastic ring connected to the outer side of rolling bearings, wherein the elastic ring adopts a thin-walled cylinder structure; inner convex plates and outer convex plates, which are regular rectangular bulges, are respectively arranged on the inner wall and the outer wall of the elastic ring, and are respectively uniformly distributed along the elastic ring in the circumferential direction; parts between every two outer convex plates are filled with metal rubber; the metal rubber is limited by the elastic ring, the outer convex plates, a casing and bearing flanges; the elastic ring is large in rigidity and less in damping; the metal rubber is small in rigidity and large in damping; the elastic ring and the metal rubber have a mutual coupling function. The damper can be used in a high-speed rotor system supported by the oil-air lubricated and oil-mist lubricated rolling bearings, can adjust the supporting rigidity of the system and inhibit the vibration of a rotor, and is simple in structure and easy to assemble.

Description

technical field [0001] The invention relates to the technical field of elastic support of a high-speed rotor system, in particular to an elastic ring damper with metal rubber. Background technique [0002] In modern high-speed rotating machinery, such as aeroengines, gas turbines, turbochargers, etc., the rotor often works at the first-order critical speed, or even above the multi-stage critical speed. When the rotor is close to or accelerates through the critical speed, the rotor system will be very big vibration. Therefore, by adding elastic damping support to the rotor system, the critical speed of the system can be adjusted by changing the support stiffness, and the vibration of the rotor can be effectively suppressed by increasing the damping of the support structure, thereby ensuring the safe and reliable operation of the system. [0003] In the 1960s, the Squeeze Oil Film Damper (SFD) was applied. It has the advantages of simple structure, small size, light weight, g...

AI Technical Summary

Problems solved by technology

In rotating machinery lubricated by oil-air or oil mist, due to the method of minimum quantity lubrication, the required squeezed oil film cannot be produced. Therefore, it is difficult to apply this type of damper. Generally, the method of rigid support is adopted, so that the rotor sad critical run

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