SU791779A1

SU791779A1 - Roll supporting device

Info

Publication number: SU791779A1
Application number: SU752196052A
Authority: SU
Inventors: Зиновий Петрович Вишня; Всеволод Сергеевич Бараненко; Маркс Абрамович Гершанов; Анатолий Александрович Новиков
Original assignee: Предприятие П/Я В-2595
Priority date: 1975-12-08
Filing date: 1975-12-08
Publication date: 1980-12-30

Description

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Изобретение относитс к чёрной металлургии и может быть использовано в печах дл высокотемпературного отжига рулонов трансформаторной стали.The invention relates to ferrous metallurgy and can be used in furnaces for high-temperature annealing of rolls of transformer steel.

Из,вестно устройство дл поддержки 5 рулонов, состо щее из нижней и верхней стальных кольцеобразных плит и двух опор под верхнюю плиту fl.Внутренн опора представл ет собой сталь-ную трубчатую колонну и устанавлива- 10 етс на нижнюю плиту. Внешней опорой служит цилиндрическа кладка из огнеупорного кирпича.Of course, there is a device for supporting 5 rolls, consisting of lower and upper steel ring-shaped plates and two supports under the upper plate fl. The inner support is a steel tubular column and is installed on the lower plate. The external support is cylindrical masonry of refractory bricks.

Наличие внешней опорной стенки сокращает передачу теплоизлучением к на-5 греваемому изделию, что требует повышени мощности нагревателей. Кроме того, необходимость установки внешней опоры перед каждым отжигом усложн ет обслуживание печи.Плоска 20 форма плит приводит к повреждению кромок ленты. Это св зано с тем, что при установке плотносмотанных рулонов ленты на горизонтальную плоскость , и при нагреве их сцепление меж-25 ду витками увеличиваетс , что при высоких температурах приводит к см тию кромок ленты.The presence of an external supporting wall reduces the transmission of heat by radiation to the heated product, which requires an increase in the power of the heaters. In addition, the need to install an external support before each annealing complicates the maintenance of the furnace. The strip 20 of the form of the plates leads to damage to the edges of the tape. This is due to the fact that when installing the tightly wound rolls of tape on a horizontal plane, and when heated, their interlock between 25 turns turns increases, which at high temperatures leads to a stripe of the tape.

Известно устройство дл поддержки рулонов, содержащее опорную стойкуA device for supporting rolls is known, comprising a support stand.

и подставки с конусными опорными поверхност ми и с цилиндрическими выступами , контактирующими с опорной стойкой Гз.and supports with conical bearing surfaces and with cylindrical protrusions in contact with the support post Gz.

Кажда из опор представл ет собой втулку с множеством ребер и плиту, установленную на втулку и ребра. Ребра одним своим концом прикреплены к втулке, а другим - к следующему ребру . Плиты имеют конусные поверхности , на которые устанавливаютс рулоны .Each of the supports is a sleeve with a plurality of ribs and a plate mounted on the sleeve and ribs. The ribs at one end are attached to the sleeve, and the other to the next edge. Plates have tapered surfaces on which rolls are placed.

Использование конусной поверхности плит позвол ет избежать повреждени кромок ленты.The use of the conical surface of the plates avoids damage to the edges of the tape.

Однако подставка дл поддержани .рулонов имеет сложную конструкцию. Больша высота опор приводит к увеличению габаритов печи. Кроме того под действием веса рулонов опоры прогибаютс , увеличиваетс конусность опорных поверхностей, что приводит к повреждению рулонов и к выходу из стро опор.However, the stand for supporting rolls has a complex structure. The greater height of the supports leads to an increase in the dimensions of the furnace. In addition, under the weight of the rolls, the supports bend, the conicity of the support surfaces increases, resulting in damage to the rolls and failure of the supports.

Целью изобретени вл етс упрощение конструкции и обеспечение многократности использовани .The aim of the invention is to simplify the design and ensure multiple use.

Claims

This goal is achieved by the fact that the top stand is made symmetrical about the horizontal plane. FIG. 1 shows a device, a horizontal projection, FIG. 2, section A-A in FIG. 1. A device for annealing coils contains a support stand — tubular column 1, upper 2 and lower 3 supports in which channel 4 is provided for supplying gas, for example protective gas, to the ends of lower 5 and upper 6 rolls. The supports and the tubulars, the column, have earrings 7 and 8. To prevent the supports from breaking up due to temperature stresses on their planes, sections 9 are made, for example, 1/3 of the radius, with a length equal to, for example, 1/3 of the radius. ends with holes 10, the diameter of which is, for example, 3-4 sizes of the width of the cut. The surfaces 11-13 of the stands 2 and 3 are tapered (taper, for example, 1: 201. A lower stand is installed on the refractory base 14 of the furnace, a lower metal roll 15 is placed on it. Then a tubular column is placed on the lower stand and an upper stand with an upper coil, and the cage is covered with muffle 16. When cold, tightly wound coils are installed on the coasters, the latter do not touch their entire end surface of the coasters, they are supported only by coils adjacent to the inner diameter. From the heat-resistant coating, the adhesion between the coils decreases, they slide down and rest on the pedestals, not perceiving the load from the neighboring coils. into the tubular column 1, from where it is removed from the furnace through the hole 19 of the base.When the top stand sags to a position where the taper of the bottom surface 9 decreases, for example, to a taper of 1:50 with the installation ulonov on the opposite surface, the support is inverted again. In this way, the use of the support is repeated. Making the stand symmetrical with respect to the horizontal axis allows for multiple use of the stand and simplifying its design. Reusable use can double the service life. Claims The device for supporting rolls, comprising a support stand and an upper and lower stand with conical support surfaces and cylindrical protrusions in contact with the support stand, characterized in that, in order to increase service life and simplify the design, the upper support is made symmetrical about horizontal plane. Sources of information taken into account in the examination 1. US patent number 3378248, cl. 263-49, 1968.

2. US patent number 3001781, cl. 263-47, 1962.