SU937162A1

SU937162A1 - Belt-type centrifugal machine for moulding tubular articles from concrete mixtures

Info

Publication number: SU937162A1
Application number: SU802973441A
Authority: SU
Inventors: Антон Юльянович Драневич; Константин Семенович Павлюченко
Original assignee: Трест "Оргтехстрой" Министерства Промышленного Строительства Бсср
Priority date: 1980-08-08
Filing date: 1980-08-08
Publication date: 1982-06-23

Description

Изобретение относится к ременным центрифугам для формования трубчатых изделий из бетонных смесей.The invention relates to belt centrifuges for forming tubular products from concrete mixtures.

Известна ременная центрифуга для формования трубчатых изделий, содержащая раму, приводные шкивы, соединенные между ⁵собой ремнями, образующими ложе формы, и откидные упоры с приводом от силовых цилиндров (1.).Known belt centrifuge for forming tubular products, containing a frame, drive pulleys connected to each other by ⁵ straps forming the bed of the form, and hinged stops driven by power cylinders (1.).

Наиболее близкой к изобретению является ременная центрифуга, содержащая ра- 10 му, нижние приводные и верхние холостые шкивы, соединенные между собой ремнями, образующими ложе формы, и верхние подвижные ограждающие щиты [2].Closest to the invention is a belt centrifuge containing a frame of 10, lower drive and upper idle pulleys interconnected by belts forming the bed of the mold, and upper movable enclosing shields [2].

Недостатком центрифуг является невысокая надежность их в работе и неудобство эксплуатации.The disadvantage of centrifuges is their low reliability and inconvenience of operation.

Цель изобретения — повышение надежности и удобство эксплуатации.The purpose of the invention is improving reliability and ease of use.

Поставленная цель достигается тем, что ременная центрифуга для формования труб- 20 чатых изделий из бетонных смесей, содержащая раму, нижние приводные и верхние холостые шкивы, соединенные между собой ремнями, образующими ложе формы, и верхние подвижные ограждающие щиты, снабжена оппозитно расположенными на раме, горизонтально подвижными подпружиненными упорами, рама — направляющими, в которых размещены подвижные ограждающие щиты, каждый из которых посредством тросо-блочной системы соединен с соответствующим подпружиненным упором, контактирующим с нижним шкивом.This goal is achieved by the fact that the belt centrifuge for forming tubular products from concrete mixtures, containing a frame, lower drive and upper idle pulleys, interconnected by belts forming the bed of the mold, and upper movable enclosing shields, is equipped with the opposite located on the frame, horizontally movable spring-loaded stops, the frame - guides in which movable enclosing shields are placed, each of which is connected via a cable-block system to a corresponding spring-loaded stop, timing with the lower pulley.

На чертеже схематически изображена предлагаемая ременная центрифуга.The drawing schematically shows the proposed belt centrifuge.

Ременная центрифуга для формования трубчатых изделий из бетонных смесей состоит из рамы 1, на которой смонтированы верхние холостые 2 и нижние ’ 3 шкивы, снабженные приводом 4. На шкивах -2 и 3 запасована ременная подвеска 5, на которую укладывают форму 6. Для удержания ремней на шкивах 3 при съеме и укладке формы предусмотрен механизм натяжения ремней, выполненный в виде горизонтально подвижных, оппозитно расположенных упоров 7, жестко закрепленных на концах штанг 8, на которые насажены пружины 9.The belt centrifuge for molding tubular products from concrete mixtures consists of a frame 1, on which upper idle 2 and lower '3 pulleys are mounted, equipped with a drive 4. A belt suspension 5 is stored on pulleys -2 and 3, on which form 6 is laid. To hold the belts on the pulleys 3 when removing and laying the molds, a belt tension mechanism is provided, made in the form of horizontally movable, opposed stops 7, rigidly fixed at the ends of the rods 8, on which the springs 9 are mounted.

Свободные концы штанг 8 при помощи тросов 10 связаны с верхними приводными щитами 11 ограждающего кожуха (не показан). При этом верхние приводные щиты 11 свободно установлены в горизонтальных направляющих 12, а штанги 8 — в горизонтальных направляющих 13. Для отклонения троса предусмотрены отклоняющие ⁵блоки 14.The free ends of the rods 8 using cables 10 are connected with the upper drive shields 11 of the enclosure (not shown). In this case, the upper drive shields 11 are freely installed in the horizontal guides 12, and the rods 8 in the horizontal guides 13. For deflecting the cable, deflecting ⁵ blocks 14 are provided.

Для возвратно-поступательного перемещения верхних приводных щитов 11 и связанных с ними штанг 8 предусмотрен общий привод, например, силовой цилиндр (не ю показан).For reciprocating movement of the upper drive shields 11 and the associated rods 8, a common drive is provided, for example, a power cylinder (not shown).

Такой механизм натяжения ремней установлен с,обеих сторон вдоль центрифуги.Such a belt tensioning mechanism is installed on both sides along the centrifuge.

Центрифуга работает следующим образом.The centrifuge operates as follows.

В момент укладки формы верхние при-- '⁵водные щиты 11 ограждающего кожуха с помощью привода разводят в противоположные стороны, обнажая ложе ременной подвески 5 (положение I). При этом под воздействием пружин 9 штанги 8 перемещаются в направлении шкивов 3 до вступления в взаимодействие с ними упоров 7.At the time of laying the mold, the upper at - ' ⁵ water shields 11 of the enclosure using the drive are parted in opposite directions, exposing the bed of the belt suspension 5 (position I). In this case, under the influence of the springs 9, the rods 8 are moved in the direction of the pulleys 3 until the stops 7 come into interaction with them.

Таким образом, при укладке и съеме формы 6 ремни ременной подвески 5 находятся свободно на шкивах в своих канавках без воздействия на них каких-либо до- 25 полнительных усилий и в то же время удерживаются упорами 7 от выпадания из канавок.Thus, when laying and removing the mold 6, the belts of the belt suspension 5 are freely on the pulleys in their grooves without any additional 25 forces being applied to them and at the same time they are held by the stops 7 from falling out of the grooves.

После укладки формы 6 на ременную подвеску 5 верхние приводные щиты 11 при помощи привода передвигаются навстречу ³⁰друг другу, закрывая ременную подвеску 5, как это предусмотрено правилами техники безопасности (положение II). При этом трос 10, увлекаемый верхними приводными щитами 11, преодолевая сопротивление пру- ₃₅жины 9, т. е. сжимая ее, переместит штан гу 8 с упором 7 в направлении от шкивов (показано штрих-пунктиром) и освободит ремни подвески 5 на шкивах 3. В этом положении ремни подвески 5 не выпадут из своих канавок на шкивах, так как они будут натянуты под воздействием силы тяжести формы 6.After laying the mold 6 on the belt suspension 5, the upper drive shields 11 with the help of the drive move towards each other ³⁰ , closing the belt suspension 5, as stipulated by the safety regulations (position II). In this case, the cable 10, carried away by the upper drive shields 11, overcoming the resistance of the spring _35, 9, i.e., squeezing it, will move the gu rod 8 with the stop 7 in the direction from the pulleys (shown by a dash-dotted line) and release the suspension belts 5 on the pulleys 3. In this position, the suspension belts 5 will not fall out of their grooves on the pulleys, since they will be stretched under the influence of gravity of the form 6.

Предлагаемая ременная центрифуга обладает повышенной надежностью и удобна в эксплуатации.The proposed belt centrifuge is highly reliable and easy to use.

Claims

(54) BELT CENTERING FOR FORMING TUBULAR PRODUCTS FROM CONCRETE MIXTURES The invention relates to belt centrifuges for forming tubular products from concrete mixes. A known belt centrifuge for forming tubular products, comprising a frame, drive pulleys interconnected by belts forming a shape bed, and folding stops driven by power cylinders.). Closest to the invention is a belt centrifuge containing a frame, lower driving and upper idle pulleys interconnected with belts forming a shape bed, and upper movable fencing shields 2. The disadvantage of centrifuges is their low reliability and inconvenience in operation. The purpose of the invention is to increase the reliability and ease of use. This goal is achieved by the fact that a belt centrifuge for forming tubular products from concrete mixtures, comprising a frame, lower drive and upper idler bars, interconnected by belts forming a shape bed. And the upper movable fencing shields, provided with an oppositically located on the frame, horizontally movable spring-loaded stops, the frame - guides, in which movable fencing shields are placed, each of which is connected with a corresponding spring-loaded stop in contact with the lower cheeks through a troso-block system. The drawing shows schematically the proposed centrifuge belt. The belt centrifuge for forming tubular concrete products consists of frame 1, on which are mounted the upper idle 2 and lower 3 pulleys equipped with a drive 4. A belt suspension 5 is placed on the -2 and 3 pulleys, on which form 6 is laid. the pulleys 3, when removing and laying the form, provide a tensioning mechanism for the belts, made in the form of horizontally movable, oppositely positioned stops 7, rigidly fixed at the ends of the shhtang 8, on which springs 9 are mounted. The free ends of the shhtang 8 are connected with cables 10 s with top drive shields AND enclosing casing (not shown). In this case, the upper drive boards 11 are freely installed in horizontal guides 12, and the rods 8 are in horizontal guides 13. To deflect the cable, deflecting blocks 14 are provided. For reciprocating movement of the upper drive shields 11 and the associated shaft 8 is provided General drive, for example, the power cylinder (not shown). Such a belt tensioning mechanism is installed on both sides along the centrifuge. The centrifuge works as follows. At the moment of laying the form, the upper drive shields 11 of the enclosing casing are dismounted in opposite directions using the drive, exposing the bottom of the belt suspension 5 (position I). At the same time, under the influence of the springs 9, the shanks 8 move in the direction of the shchivki 3 until the stops 7 interact with them. Thus, during the laying and removal of the mold 6, the belts of the belt suspension 5 are free on the shchivs in their grooves without affecting them additional forces and at the same time are kept by the stops 7 from falling out of the grooves. After laying the b-form on the belt suspension 5, the upper drive plates 11, using the drive, move towards each other, closing the belt suspension 5, as provided for by the safety regulations (position II). In this case, the cable 10, carried away by the upper driving plates 11, overcoming the resistance of the spring 9, i.e., compressing it, will move the rod 8 with the stop 7 in the direction from the shchivs (shown by dash line) and will release the suspension straps 5 on the shields 3. the position of the suspension straps 5 will not fall out of their grooves on the shkivakh, since they will be tightened under the influence of the force of the form of the form 6. The proposed belt centrifuge has increased reliability and is easy to operate. Claims of the invention A belt centrifuge for forming tubular products from concrete mixtures comprising a frame, lower drive and upper idler pins interconnected by straps forming a shape bed, and upper movable fencing shields, characterized in that, in order to increase reliability and convenience operation, it is equipped with a box located oppositely on the frame, horizontally movable spring-loaded stops, the frame - guides, in which are placed movable fencing shields, each of which by means of a troso-block with STEM is coupled with a corresponding spring loaded abutment contact with the lower pulley. Sources of information taken into account in the examination 1. USSR author's certificate number 742149, cl. At 28 At 21/30, 1978.

2. Catalog of the main technological equipment of the molding workshops of precast concrete enterprises. Tula, 1977,, (M-in industrial construction of the USSR) S. 74. 16 G. // /. / / W I. /