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RU2015131909A - SPRING EQUIPMENT VIBRATION ISOLATOR - Google Patents

SPRING EQUIPMENT VIBRATION ISOLATOR Download PDF

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Publication number
RU2015131909A
RU2015131909A RU2015131909A RU2015131909A RU2015131909A RU 2015131909 A RU2015131909 A RU 2015131909A RU 2015131909 A RU2015131909 A RU 2015131909A RU 2015131909 A RU2015131909 A RU 2015131909A RU 2015131909 A RU2015131909 A RU 2015131909A
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RU
Russia
Prior art keywords
frequency
equal
spring
vibration isolator
elastic
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Application number
RU2015131909A
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Russian (ru)
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RU2015131909A3 (en
RU2671676C2 (en
Inventor
Мария Михайловна Стареева
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Мария Михайловна Стареева
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Priority to RU2015131909A priority Critical patent/RU2671676C2/en
Publication of RU2015131909A publication Critical patent/RU2015131909A/en
Publication of RU2015131909A3 publication Critical patent/RU2015131909A3/ru
Application granted granted Critical
Publication of RU2671676C2 publication Critical patent/RU2671676C2/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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Springs (AREA)

Claims (6)

1. Пружинный равночастотный виброизолятор, содержащий 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 δ1. A spring equal-frequency vibration isolator containing a base, a support platform and an elastic element located between them, made in the form of a cylindrical equal-frequency spring having 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 due to its precipitation δ
Figure 00000001
,
Figure 00000001
, где P1 и Р2 - соответственно минимальная и максимальная нагрузки, при которых сохраняются условия равночастотности; Р - нагрузка, удовлетворяющая условию P1≤P≤Р2;where P 1 and P 2 are the minimum and maximum loads, respectively, 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 P1, и условию равночастотности: постоянству частоты собственных колебаний виброизолируемой системы при изменении массы этой системы в заданных пределах, отличающийся тем, что на опорной пластине виброизолятора верхнего фланца равночастотной пружины закреплен виброизолируемый объект с переменной технологической массой, а нижний фланец равночастотной пружины виброизолятора закреплен на упругом основании, которое посредством, по крайней мере, трех стоек с винтами и с коаксиально расположенными снаружи стоек, эластичными втулками, соединено с нижней платформой виброизолятора, а под упругим основанием нижнего фланца равночастотной пружины, осесимметрично ей, размещен цилиндроконический демпфер, например из эластомера, установленный своей цилиндрической частью на нижней платформе каждого виброизолятора, а коническая часть связана с упругим основанием равночастотной пружины.δ 1 - a given initial spring draft, corresponding to the minimum load P 1 , and the condition of equal frequency: constant frequency of natural vibrations of the vibroisolated system when the mass of this system changes within specified limits, characterized in that a vibroisolated object with a variable is fixed on the base plate of the vibration isolator of the upper flange of the equal-frequency spring the technological mass, and the lower flange of the equal-frequency spring of the vibration isolator is fixed on an elastic base, which, through at least three racks with screws and with coaxially located outside racks, elastic bushings, connected to the lower platform of the vibration isolator, and under the elastic base of the lower flange of the equal-frequency spring, axisymmetrically placed a cylindrical damper, for example from an elastomer, mounted with its cylindrical part on the lower platform of each vibration isolator, and the conical part is connected with elastic base of equal frequency spring. 2. Пружинный равночастотный виброизолятор по п. 1, отличающийся тем, что цилиндроконический демпфер выполнен в виде последовательно соединенных конической и цилиндрической винтовых пружин, витки которых покрыты слоем эластомера, например полиуретаном.2. A spring equal-frequency vibration isolator according to claim 1, characterized in that the cylindrical damper is made in the form of conically and cylindrical coil springs connected in series, the turns of which are coated with an elastomer layer, for example polyurethane. 3. Пружинный равночастотный виброизолятор по п. 1, отличающийся тем, что нижняя платформа выполнена комбинированной, и состоящей из трех вибродемпфирующих слоев: первый слой - из дисперсного упругодемпфирующего материала, в котором может быть использована крошка, например следующих материалов: резины, пробки, пенопласта, капрона, вспененного полимера, а также крошка твердых вибродемпфирующих материалов, например таких как пластикат типа «Агат», «Антивибрит», «Швим» с размером фракций крошки 1,5÷2,5 мм, второй слой - из вязаных упругих синтетических нитей, причем размер ячеек, вязаных из упругих синтетических нитей, на 10÷15% меньше размеров фракций крошки вибродемпфирующих материалов; и третий слой - из сплошного демпфирующего материала, в котором может быть использована губчатая резина, иглопробивной материал типа «Вибросил» на базе кремнеземного или алюмоборосиликатного волокна, а также нетканый вибродемпфирующий материал.3. The spring equal-frequency vibration isolator according to claim 1, characterized in that the lower platform is combined and consists of three vibration-damping layers: the first layer is made of dispersed elastic-damping material, in which crumbs can be used, for example, the following materials: rubber, cork, foam , kapron, foamed polymer, as well as crumbs of solid vibration-damping materials, such as agate, anti-vibrate, shvim plastic with a size of fractions of crumbs of 1.5 ÷ 2.5 mm, the second layer is made of knitted elastic synthetics yarns, moreover, the size of the cells knitted from elastic synthetic yarns is 10-15% less than the size of the fractions of crumbs of vibration damping materials; and the third layer is made of a continuous damping material, in which sponge rubber, needle-punched material of the type “Vibrosil” based on silica or alumino-borosilicate fiber, as well as non-woven vibration-damping material can be used.
RU2015131909A 2015-07-31 2015-07-31 Spring equifrequential vibration isolator RU2671676C2 (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Publications (3)

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RU2015131909A true RU2015131909A (en) 2017-02-03
RU2015131909A3 RU2015131909A3 (en) 2018-05-25
RU2671676C2 RU2671676C2 (en) 2018-11-06

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3101228A (en) * 1961-08-08 1963-08-20 Lord Mfg Co Mounting system
US6079698A (en) * 1997-08-18 2000-06-27 Fmc Corporation Isolation system for vibratory equipment
RU2652862C2 (en) * 2014-03-25 2018-05-03 Татьяна Дмитриевна Ходакова Spring equifrequential vibration isolator

Also Published As

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RU2671676C2 (en) 2018-11-06

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