SU547348A1

SU547348A1 - Resonant vibroplatform

Info

Publication number: SU547348A1
Application number: SU2091507A
Authority: SU
Inventors: Клиффорд Вольфгангович Руссов; Эдмунд Виллемович Вески; Лембит Антонович Сеестранд
Priority date: 1974-12-30
Filing date: 1974-12-30
Publication date: 1977-02-25

Description

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Изобретение относитс к производству строительных изделий и предназначено преимущественно дл виброформовани массивов или деталей из газобетона.The invention relates to the manufacture of building products and is intended primarily for the vibroforming of arrays or parts of aerated concrete.

Известна резонансна виброплошадка с го ризонтально направленными колебани ми, содержаща основание, на котором смонтирован на упругих опорах подвижна рама, возбудитель колебаний и резонатор, состо щий из двух горизонтальных и параллельных друг другу гибких балок, соединенных по концам поперечинами, причем возбудитель колебаний и подвижна рама св заны при помощи кронщтейнов соответственно с серединами гибких балок резонатора l j .A resonant vibratory plate with horizontally directed vibrations is known, comprising a base on which a movable frame, an exciter and a resonator consisting of two flexible beams horizontal and parallel to each other, connected at the ends by cross-beams, are mounted on elastic supports; are connected with the help of brackets, respectively, with the middle of the flexible beams of the resonator lj.

Целью изобретени вл етс обеспечение возможности настройки на заданный режим работы в процессе формовани изделий.The aim of the invention is to provide the possibility of tuning to a predetermined mode of operation in the process of forming articles.

Это достигаетс тем, что поперечины резонатора , кронштейны возбудител колебаний и подвижной рамы снабжены подшипниками качени , в которых размещены гибкие балки резонатора, имеющие в горизонтальной плоскости форму бруса равного сопротивлени изгибу .This is achieved by the fact that the resonator cross-arms, oscillation driver brackets and the movable frame are equipped with rolling bearings, in which flexible resonator beams are placed, which have a bar shape equal to the bending resistance in the horizontal plane.

На фиг. 1 и 2 изображена предлагаема резонансна виброплощадка.FIG. Figures 1 and 2 depict the proposed resonance vibroplatform.

Резонансна виброплощадка состоит из основани 1, на котором на упругих опорах 2 установлены подвижна рама 3 и резонато 4. Резонатор 4 содержит гибкие балки 5 и 6, установленные в подщипниках качени 7 и 8 и соединенные между собой поперечинами 9. На одних концах гибких балок 5 и 6 за поперечиной 9 смонтированы звездочки 1О дл синхронного вращени гибких балок 5 и 6 при помощи приводной коробки поворота (не показана),наход щейс на основании 1. Возбудитель колебаний 11 прикрепле к крошитейну 12, установленному в середине гибкой балки 5 в подщипниках 8, а середина гибкой балки 6 посредством подщипников 7 закреплена в кронщтейне 13 подвижной рамы 3.The resonant vibroplatform consists of base 1, on which movable frame 3 and resonato 4 are mounted on elastic supports 2. Resonator 4 contains flexible beams 5 and 6 installed in rolling bearings 7 and 8 and interconnected by cross-bars 9. At one end of flexible beams 5 and 6, behind the crossbar 9, sprockets 1O are mounted for synchronous rotation of flexible beams 5 and 6 by means of a turning drive box (not shown) located on the base 1. The vibration exciter 11 is attached to the chromite 12 installed in the middle of the flexible beam 5 8, and mid beams 6 by means of flexible podschipnikov 7 is fastened to the movable frame 13 kronschteyne 3.

Claims

The resonant vibration platform works as follows. A mold 14 is mounted on the movable frame 3, is poured into the last concrete mix, the oscillation pathogen 11 is turned on and molded with the maximum oscillation amplitude before the swelling process begins. After that, the drive box for turning the flexible beams 5 and 6 is turned on and, rotating them, reduces the amplitude of oscillation to the required size. At the end of the molding, the vibration exciter 11 is turned off, the form 14 with the products is removed from the movable frame 3 of the vibratory suppression and transferred to the post ripening. The use of flexible beams having a bar shape of equal resistance to bending in a horizontal plane, whose cross section is formed by a circle, cut off by two parallel chords, allows for given amplitudes of oscillations to reduce the dimensions of the resonator to a theoretical minimum, since the flexibility of a beam that has a horizontal beam ( the shape of the beam equal to the resistance to bending, is maximum compared to the flexibility of the beams of other longitudinal profiles. Invention Formula Resonant vibratory table with horizontally directed oscillations, comprising a base on which a movable frame, an exciter and a resonator are mounted on elastic supports, a resonator consisting of two horizontal and parallel flexible beams connected at the ends by cross-beams, the exciter and the movable frame being connected by means of brackets respectively the middle of the flexible beams of the resonator, characterized in that, in order to provide the possibility of tuning to a given mode of operation in the process of molding the product, the cross member of the resonator, the brackets of the exciter and oscillations of the movable frame are provided with rolling bearings, in which the resonator has a flexible beam having a horizontal beam form equal bending resistance. Sources of information taken into account in the examination: 1. USSR Author's Certificate No. 301276, M. Kl. 28 V 1/08, 1969.

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