RU2016134962A - DOUBLE VIBRATION ISOLATING SYSTEM - Google Patents

DOUBLE VIBRATION ISOLATING SYSTEM Download PDF

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Publication number
RU2016134962A
RU2016134962A RU2016134962A RU2016134962A RU2016134962A RU 2016134962 A RU2016134962 A RU 2016134962A RU 2016134962 A RU2016134962 A RU 2016134962A RU 2016134962 A RU2016134962 A RU 2016134962A RU 2016134962 A RU2016134962 A RU 2016134962A
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Prior art keywords
frequency
equal
vibration
elastic
spring
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RU2016134962A
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Russian (ru)
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RU2016134962A3 (en
RU2666020C2 (en
Inventor
Олег Савельевич Кочетов
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Олег Савельевич Кочетов
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Priority to RU2016134962A priority Critical patent/RU2666020C2/en
Publication of RU2016134962A3 publication Critical patent/RU2016134962A3/ru
Publication of RU2016134962A publication Critical patent/RU2016134962A/en
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Publication of RU2666020C2 publication Critical patent/RU2666020C2/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
    • F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
    • F16F3/10—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction

Claims (4)

Сдвоенная виброизолирующая система, содержащая основание, опорную платформу и расположенный между ними упругий элемент, выполненный в виде цилиндрической равночастотной пружины, имеющей переменный шаг t, обеспечивающий постоянство собственной частоты системы при любых нагрузках Р из заданного диапазона: P1≤Р≤Р2, за счет своей осадки δ:A dual vibration-isolating system containing a base, a support platform and an elastic element located between them, made in the form of a cylindrical equal-frequency spring with a variable pitch t, ensuring the constancy of the natural frequency of the system at any loads P from a given range: P 1 ≤P≤P 2 , for account of its precipitation δ:
Figure 00000001
Figure 00000001
 где P1 и P2 соответственно минимальная и максимальная нагрузки, при которых сохраняются условия равночастотности; Р - нагрузка, удовлетворяющая условию P1≤P≤Р2;where P 1 and P 2, respectively, the minimum and maximum loads under which the conditions of equal frequency are maintained; P is a load satisfying the condition P 1 ≤P≤P 2 ; δ1 - заданная начальная осадка пружины, отвечающая минимальной нагрузке Р1, и условию равночастотности: постоянству частоты собственных колебаний виброизолируемой системы при изменении массы этой системы в заданных пределах, система содержит, по крайней мере, два пружинных равночастотных виброизолятора с равночастотными пружинами, симметрично установленными относительно опорной платформы, при этом нижний фланец равночастотной пружины каждого виброизолятора закреплен на упругом основании, а верхний - на опорной пластине, а на опорной платформе, посредством крепежных элементов, закреплен виброизолируемый объект с переменной технологической массой, причем платформа с помощью вертикальных и горизонтальных рычагов связана с опорными узлами, закрепленными на опорной пластине каждого виброизолятора с помощью осесимметричных с равночастотными пружинами регулировочных стержней с гайками, жестко фиксирующими втулки, жестко соединенные с горизонтальными рычагами опорных узлов, при этом между стержнями и втулками, жестко соединенными с горизонтальными рычагами опорных узлов, коаксиально им, размещены втулочные упругодемпфирующие элементы, а внутри каждой равночастотной пружины, осесимметрично и коаксиально каждой из них, размещены упругодемпфирующие устройства, при этом их нижняя часть закреплена на упругом основании равночастотной пружины, а верхняя - на ее опорной пластине, при этом упругое основание, на котором закреплен нижний фланец равночастотной пружины виброизолирующей системы, выполнено комбинированным, состоящим из чередующихся между собой слоев упругого материала, например листовой пружинной стали, и слоев вибродемпфирующего материала, например твердых сортов вибродемпфирующих материалов, таких как пластикат типа «Агат», «Антивибрит», «Швим», а под каждым упругим основанием нижнего фланца равночастотной пружины, осесимметрично ей, размещены сетчатые демпферы, установленные на упругодемпфирующие прокладки из эластомера.δ 1 - a given initial spring draft, corresponding to the minimum load P 1 , and the condition of equal frequency: the frequency of the natural vibrations of the vibration-insulated system is constant when the mass of this system changes within the specified limits, the system contains at least two spring-frequency equal-frequency vibration isolators with equally-frequency springs symmetrically installed relative to the support platform, while the lower flange of the equal-frequency spring of each vibration isolator is mounted on an elastic base, and the upper one on the base plate, and on the support the platform, by means of fasteners, a vibration-isolating object with a variable technological mass is fixed, and the platform is connected with support nodes mounted on the base plate of each vibration isolator using vertical and horizontal levers with the help of axisymmetric adjustment rods with nuts that are rigidly fixed to the bushings and rigidly connected to the bushings with horizontal levers of support nodes, while between the rods and bushings rigidly connected to horizontal levers of support nodes, coaxial to them, sleeve elastic-damping elements are placed, and inside each equal-frequency spring, axisymmetrically and coaxial to each of them, elastic-damping devices are placed, while their lower part is fixed on the elastic base of the equal-frequency spring, and the upper - on its base plate, while elastic the base on which the lower flange of the equal-frequency spring of the vibration-isolating system is fixed is made combined, consisting of alternating layers of elastic material, for example, sheet metal steel, and layers of vibration-damping material, for example, hard grades of vibration-damping materials, such as agate, antivibrate, shvim plastic compounds, and under each elastic base of the lower flange of the equal-frequency spring, axisymmetrically placed mesh dampers mounted on elastic-damping gaskets made of elastomer.
RU2016134962A 2016-08-29 2016-08-29 Double vibration isolation system RU2666020C2 (en)

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RU2666020C2 RU2666020C2 (en) 2018-09-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110206846A (en) * 2019-04-15 2019-09-06 北京卓立汉光仪器有限公司 Double frequency damping isolation platform

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101102A (en) * 1976-04-26 1978-07-18 Westinghouse Electric Corp. Vibration isolation load support apparatus
US6079698A (en) * 1997-08-18 2000-06-27 Fmc Corporation Isolation system for vibratory equipment
RU2550908C1 (en) * 2014-03-25 2015-05-20 Олег Савельевич Кочетов Vibration isolation system by kochetov for process equipment with variable mass

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110206846A (en) * 2019-04-15 2019-09-06 北京卓立汉光仪器有限公司 Double frequency damping isolation platform

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RU2666020C2 (en) 2018-09-05

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