SU922351A2

SU922351A2 - Damper

Info

Publication number: SU922351A2
Application number: SU772488472A
Authority: SU
Inventors: Изольд Давыдович Эскин; Дмитрий Константинович Новиков
Original assignee: Куйбышевский Ордена Трудового Красного Знамени Авиационный Институт Им.Академика С.П.Королева
Priority date: 1977-05-23
Filing date: 1977-05-23
Publication date: 1982-04-23

Description

(54) ДЕМПФЕР(54) DAMPER

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Изобретение относитс к машино1Строению , а именно к средствам га|шени колебаний валов турбомашин.The invention relates to a machine design, namely, to means of shaking oscillations of turbomachine shafts.

Известно устройство дл гашени колебаний валов турбомашин, содержащее корпус, размещенное в нем кольцо, предназначенное дл установки вала и пластинчатый гофрированный пакет, установленный между корпусом и кольцом A device for damping vibrations of turbomachine shafts is known, comprising a housing, a ring housed therein, a shaft for mounting and a lamellar corrugated bag mounted between the housing and the ring.

Недостатком устройства вл етс по вление высокочастотных колеба .ний демпфера вследствие значительного нат га гофрированного пакета , необходимого дл воспри ти ста-, тических нагрузок.The disadvantage of the device is the appearance of high-frequency oscillations of the damper due to the considerable tension of the corrugated package, which is necessary for the perception of static and static loads.

По основному авт. св. № 723252 известен демпфер, содержащий корпус, заполненный рабочей средой, размещай) ное в нем кольцо, установленное на невращающуюс обойму-, подшипникаj и пластинчатый гофрированный пакет, установленный между корпусом и кольцом , при зтом корпус демпфера и копьцо имеют П-образную форму поперечного сечени и совмещены таким образом , что пластинчатый пакет размещай между наружной стенкой кольца и внутренней стенкой корпуса, а демпфер снабжен разгрузочным устройством, включающем опорный элемент и подпружиненный в направлении действи Г статической силы башмак, взаимодействующий с кольцом 12.According to the main author. St. No. 723252 is known for a damper containing a body filled with a working medium, place a ring in it, mounted on a non-rotating holder, bearing and a plate-type corrugated bag installed between the body and the ring, and the body of the damper and lance have a U-shaped cross-section and are aligned in such a way that the plate package is placed between the outer wall of the ring and the inner wall of the housing, and the damper is provided with a discharge device including a supporting element and spring-loaded in the direction of action Г с aticheskoy force shoe cooperating with the ring 12.

Недостатком демпфера вл ютс его значительные габаритные размерыThe disadvantage of the damper is its considerable overall dimensions.

Цель изобретени - уменьшение габаритов демпфера.The purpose of the invention is to reduce the size of the damper.

Указанна цель достигаетс тем, что наружные стенки корпуса и кольца выполнега трапециевидными таким . образом, что выступы стенки корпуса размещены во впадинах стенки кольца .This goal is achieved by the fact that the outer walls of the housing and the ring are trapezoidal such. so that the protrusions of the housing wall are located in the hollows of the ring wall.

Claims

FIG. 1 shows a damper in section; in fig. 2 is a section of the A-AtHa of FIG. I; in fig. 3 - damper, side view. The damper consists of a housing I, filled with the working medium, a ring 2, a lamellar corrugated1 of the bag 3 and an unloading device, a BKJiiech support element 4, a shoe 5, a relief spring 6. The case of the damper i and the ring 2 are U-shaped sleeves external walls 7 and 8 of which are made with counter trapezoid protrusions 9 and 10. Ring 2 is mounted on a non-rotating bearing race (not shown). The device works in the following way. The vibrational energy of the bearing cage enters the hydraulic losses arising from the installation of the oil film from the working gaps of the damper, and is also dissipated due to friction in the lamellar corrugated bag 3. 9 for 14 Making the outer walls 7 and 8 of the housing 1 and the ring 2 with response keystone 9 - and 10 allows to reduce the overall dimensions and weight of the damper. Formula of the invention St. No. 723252 is anxious in that, in order to reduce the dimensions of the damper, the outer walls of the housing and the ring are trapezoidal in such a way that the projections of the housing wall are located in the hollows of the ring wall. Sources of information taken into account in the examination 1. USSR author's certificate number 225621, CL F 16 F 7/00, 1968.

2. Authors certificate USSR №723252, 1977 (prototype).

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