SU845962A1

SU845962A1 - Furnace for heat treating of rings

Info

Publication number: SU845962A1
Application number: SU782701567A
Authority: SU
Inventors: Георгий Андреевич Эммануэль; Николай Иванович Губа; Виталий Михайлович Маркевич; Павел Ефимович Осипенко; Валентин Ильич Хейфец; Аэлита Самойловна Кадинова; Эдуард Васильевич Гольбан; Анатолий Викторович Рогальский; Анатолий Митрофанович Токмаков
Original assignee: Предприятие П/Я В-8173
Priority date: 1978-12-26
Filing date: 1978-12-26
Publication date: 1981-07-15

Description

1one

Изобретение относитс к термической обработке и может быть использовано при нагреве и охлаждении колец и других коротких полых цилиндрических изделий, например муфт, бандажей и т.п.The invention relates to heat treatment and can be used when heating and cooling rings and other short hollow cylindrical articles, such as couplings, bandages, etc.

Известна кольцева печь дл термической обработки коротких цилиндрических изделий (колец), включающа обогреваемую цилиндрическую камеру, одно из оснований которой .(подина) выполнено вращающимс в горизонтальной плоскости 1.A known ring furnace for the heat treatment of short cylindrical articles (rings), comprising a heated cylindrical chamber, one of the bases of which (bottom) is made to rotate in a horizontal plane 1.

Известна также термическа печь барабанного типа, содержаща цилиндрическую рабочую камеру с вращающейс крышкой, установленной в торце печи 2.A drum-type thermal furnace is also known, comprising a cylindrical working chamber with a rotating lid mounted in the end of the furnace 2.

Недостаток данной конструкции состоит в том, что печи присуща неравномерность нагрева колец вследствие разности температурных воздействий со стороны свода, боковых стен и температурных воздействий со стороны пода.The disadvantage of this design is that the furnace is characterized by uneven heating of the rings due to the difference in temperature effects from the ceiling, side walls and temperature effects from the hearth.

Цель изобретени - улучшение равномерности нагрева колец. The purpose of the invention is to improve the heating uniformity of the rings.

Поставленна цель достигаетс тем, что печь снабжена консольными валами; установленными на крышке параллельно оси установки.The goal is achieved by the fact that the furnace is equipped with cantilever shafts; mounted on the cover parallel to the axis of the installation.

Нэ фиг. I показана печь, разре Ne figs. I shows the oven, permits

на фит. 2 - сечение А-А на фиг. 1.on fit. 2 is a section A-A in FIG. one.

Предлагаема печь дл термической об-, работки коротких полых цилиндрическихизделий (колец) состоит из стационарной цилиндрической футерованной рабоче i камеры 1, в футеровке которой дл обо-рева установлены источники 2 тепла (газовые горелки), а в стенке выполнены окна 3 загрузки-выгрузки (или одно окно). Пе1ь содержит приводную крышку 4, расположен10 ную в торце печи, с установленными н j ней и проход щими через нее консольными приводными валами &, параллельными оси установки . Вращение крышки осуществл етс посредством привода 6 и вала 7, прохол ще 5 го через опорный подшипник 8 и жестки соединенного с крышкой 4, котора дл большей устойчивости опираетс на кат ей 9. Обеспечение возможности вращени вглов 5 вокруг своей оси производитс с помощью известного группового привода, иап{имер,The proposed furnace for thermal treatment of short hollow cylindrical products (rings) consists of a stationary cylindrical lined working chamber 1, in the lining of which heat sources 2 (gas burners) are installed for the firewall, and loading-unloading windows 3 are made in the wall. or one window). Pe1 contains a drive cover 4 located 10 at the end of the furnace, with cantilever drive shafts & installed through it and passing through it parallel to the axis of the installation. The cover is rotated by means of an actuator 6 and a shaft 7, running 5 through a thrust bearing 8 and rigidly connected to the cap 4, which for greater stability rests on the cat 9. Ensuring that the rotation 5 around its axis is rotatable is carried out using a known group drive. iap {imer,

Claims

L consisting of mounted on shafts: gears 10, which are engaged with gear 11, mounted on a clutch 12 rotating on bearings 13 and terminating on the opposite side gear 14, rotated by a sprat 15 drive 16. To a vertically mounted rotating lid 4 rigidly bearings 17 are attached through which the shafts 5 pass. To prevent movement of the products (rings) 18 along the shafts 5, the latter are provided with flanges 19, and to seal the gap between the rotating cover 4 and chamber I, along its entire perimeter n collector 20 gas curtain. The furnace works as follows. Using the boot maschiny known construction (not shown) through the boot window 3 of the product (ring) 18 put on the drive shaft 5, installed parallel to the axis of the installation. The shafts 5 impart rotation to the articles (rings) 18 placed on them. After the loading (donning) operation is performed by a vertically mounted lid 4, they are rotated at a fixed angle, together with rotating shafts 5 and articles (rings) 18 on them with the help of drive 6. After that, the next batch of products (rings) 18 is loaded. Simultaneously with the load, rings 18 (when performing a cure with two windows — loading and unloading windows) are unloaded in the same way. When performing a furnace with one ohm, loading and unloading operations are carried out sequentially: first, goods (rings) 18 are unloaded (they are present on rotating shafts 5), then loaded. The rotational speed of the lid 4 is selected from the heat treatment conditions. The fuel is burned with the help of burners 2. To prevent the combustion products from being ejected into the workshop atmosphere, a barrier gas is supplied through the gas curtain collector 20 through the gap between the rotating cover 4 and the stationary cylindrical lined working chamber I. Air or combustion products can be used as a shut-off gas, which can be removed from the working chamber of this furnace. The proposed furnace makes it possible to significantly improve the quality of heat treatment of the rings by ensuring their independent regulated rotation on the shafts, which makes it possible to achieve uniformity of the temperature field of the products (rings) around the perimeter and along the wall thickness. Claims An oven for heat treatment of rings, comprising a cylindrical drum-type working chamber with a drive cover installed at the end of the furnace, characterized in that, in order to improve the heating of the rings, the furnace is equipped with cantilever shafts mounted on the cover parallel to the axis of the installation. Sources of information accepted. Attention during the examination 1. V. Grigoriev. Ring furnaces for metal heating. M., Metallurgizdat, 1958, p. 8-9.

2. USSR author's certificate number 91181, cl. C 21 D 9/08, F 27 B 9/16, C 21 D 9/68, 1950. H / W

W

18

fU2.Z