SU906710A1

SU906710A1 - Centrifugal machine for moulding bodies of revolution from concrete mixes

Info

Publication number: SU906710A1
Application number: SU802935414A
Authority: SU
Inventors: Валерий Иванович Сусанин; Михаил Дмитрович Генкин; Владимир Казимирович Гринкевич; Юрий Васильевич Науменко; Анатолий Николаевич Суворов
Original assignee: Государственный Научно-Исследовательский Институт Машиноведения Им.Акад.А.А.Благонравова
Priority date: 1980-06-09
Filing date: 1980-06-09
Publication date: 1982-02-23

Description

(54) ЦЕНТРИФУГА ДЛЯ ФОРМОВАНИЯ TLJI ВР/ 1Д1:НИЯ ИЗ Бетонных СМКС.ЕЙ(54) CENTRIFUGE FOR FORMING TLJI BP / 1D1: NIA FROM CONCRETE SMKS. EY

1one

Изобретение относитс к техничес|кому оборудованию строительной индустрии .The invention relates to the technical equipment of the building industry.

Известна центрифуга дл формовани тел вращени из бетонных смесей, содержаща смонтированные на раме посредством подпруисине.нных подшипников ведомые и ведущие опорные -ролики и возбудители колебаний ГО.A known centrifuge for forming rotation bodies from concrete mixtures, which contains driven and leading bearing rollers and vibration oscillators GO mounted on the frame by means of subtruded bearings.

Известна также центрифуга дл формовани тел В11ащени , содержаща неподвижную раму, форму, ведомые и ведущие опорные ролики, корпуса с подшипниками, пружины и вибрационный механизм 2.Also known is a centrifuge for molding bodies V11, comprising a fixed frame, a mold, driven and driving support rollers, housings with bearings, springs and a vibration mechanism 2.

Недостатки известных центрифуг большой уровень шума и недостаточна надежность работы.The disadvantages of the known centrifuges are high noise levels and insufficient reliability of operation.

Цель изобретени - снижение уровн шума и повьш1ение надежности.The purpose of the invention is to reduce the noise level and increase reliability.

Это достигаетс тем, что в центрифуге дл формовани тел вращени из бетонных смесей, содержащей смонтированные на раме посредством подпружиненных подшипников ведомые и ведущие опорные ролики и возбудители колебаний, ведомые ролики выполнены полыми, их подшипники - радиально подвижными, возбудители колебаний - в виде секционных приводных валсВ со сблокированными попарно н закрепленными на них дебаланслми, каждый из которых размещен в полости ведомого опорного ролика.This is achieved by the fact that in a centrifuge to form rotation bodies from concrete mixes, which have driven and driven support rollers mounted on the frame by means of spring-loaded bearings, driven oscillators, driven rollers are hollow, their bearings are radially movable, and vibration oscillators are in the form of sectional drive shafts with unbalanced, locked in pairs, fixed to them, each of which is located in the cavity of the driven support roller.

10ten

На фиг.1 схематически изображена центрифуга дл формовани тел вращени , обилий вид на фиг. 2 - сечение А-А на фиг.I.Fig. 1 schematically shows a centrifuge for forming bodies of revolution; an abundance view of Fig. 2 - section aa on fig.I.

Центрифуга дл формовани тел вра15 щени состоит из неподвижной рамы t, )l 2, ведомых 3 и ведущих 4 опорных роликов, вилок 5 с подшипниками 6, пружин 7 и возбудител колебаний, который содержит привод 8, приводные The centrifuge for shaping the turntable bodies consists of a fixed frame t,) l 2, driven 3 and leading 4 support rollers, forks 5 with bearings 6, springs 7 and a vibration exciter that contains the drive 8, driven

20 валы 9, соединительные муфты 10 и два дебаланса 11 и 12.20 shafts 9, coupling 10 and two unbalance 11 and 12.

Claims

The centrifuge works in the following way. 39 Before starting work, form 2 is set to 3 and above 4 support rollers. Includes 4 leading rollers and displays the form at operating speeds. With an appropriate selection of the stiffness coefficient of the cup springs 7, the shape self-centers, with the result that with increasing angular speeds forksh, the reactions of the roller bearings increase not infinitely proportional to the square of the angular velocities a to the final limit, which leads to an increase in the service life of roller bearings. When the centrifuge reaches the operating speed, the drive 8 is turned on. The rotation of the shafts 9 with unbalance 1 and 12 causes the vibration to affect the shape, whose frequency varies by changing the frequency of rotation of the drive 8, and the amplitude of the vibration to affect the relative position of the unbalances 1 and 12 in each driven support roller. The use of the invention will reduce the noise level and increase the reliability of the centrifuge. Claims of the invention: A centrifuge for forming rotational bodies from concrete mixtures containing driven and driving support rollers mounted on the frame by spring-loaded bearings, and vibration oscillators, which, in order to reduce the noise level and increase reliability, the a9le rollers are hollow bearings - radially movable, the exciter of oscillations - in the form of sectional drive shafts with unbalances blocked in pairs and fixed on them, each of which has 8 cavities of the driven support p face. Sources of information taken into account in the examination 1. The author's certificate of the USSR 457607, cl. B 28 B 21/34, 1975.

2. US patent t 2703916, l. 425-429, 1955. 9 S