SU967675A1

SU967675A1 - Apparatus for knocking off and recovering ingots out off ingot moulds

Info

Publication number: SU967675A1
Application number: SU803221582A
Authority: SU
Inventors: Владимир Иванович Звонарев; Виктор Антонович Смолий; Роберт Эдуардович Краузе; Валерий Анатольевич Белютин
Original assignee: Производственное объединение "Сибтяжмаш"; Красноярский Политехнический Институт
Priority date: 1980-12-23
Filing date: 1980-12-23
Publication date: 1982-10-23

Description

Изобретение относитс к металлургическому оборудованию, преимущественно дл использовани в кранах дл раздевани слитков.The invention relates to metallurgical equipment, mainly for use in cranes for stripping ingots.

Известны устройства дл выталкивани и извлечени слитков из изложниц , содержащие клещевые захваты, взаимодействующие через изложницу и слиток с винтовой системой, св занной с двухприводным редуктором.Devices for ejecting and removing ingots from molds are known, comprising clamping pincers interacting through the ingot mold and ingot with a screw system connected to a two-wheel drive gearbox.

Этими устройствс1ми оборудуютс краны дл раздевани слитков, которые, как правило, вл ютс трехоперационными , т.е. выполн ют три :основные, операции.Cranes for stripping ingots, which, as a rule, are three-operational, i.e., are equipped with these devices. perform three: basic operations.

Конструктивной особенностью этих кранов вл етс то, что выталкивание и извлечение слитков из изложниц осуществл етс с помощью одного и того же механизма выталкивани .The design feature of these cranes is that the ejection and extraction of ingots from the molds is carried out using the same ejection mechanism.

Современные краны дл раздевани слитков развивают максимальные усили до 400 т при весе слитков до 32 т 1 , 2 -и 3.Modern cranes for stripping ingots develop maximum forces up to 400 tons with ingots weighing up to 32 tons 1, 2 -and 3.

Недостаток известных механизмов выталкивани заключаетс в пбвышенном расходе мощности электропривода при свободном отделении слитков от изложниц. Это обусловлено тем, что электропривод рассчитываетс из услови обеспечени максимального .усили , поэтому при извлечении слитков , свободно выход щих из изложниц, он работает практически без нагрузки, потребл при этом одинаковую мощность в периоды пусков, что и с максимальной нагрузкой.A disadvantage of the known ejection mechanisms is the higher power consumption of the electric drive with free separation of the ingots from the molds. This is due to the fact that the electric drive is calculated from the condition of maximum force, therefore, when extracting ingots freely leaving the molds, it works practically without load, while consuming the same power during the periods of starts as with the maximum load.

Цель изобретени - повышение эффективности выталкивани и извлечени слитков.The purpose of the invention is to increase the efficiency of ejection and extraction of ingots.

Эта цель достигаетс тем, что устройство снабжено маховиком, соединенным с одним из входных валов редуктора при помощи управл емой соединительной муфты.This goal is achieved by the fact that the device is equipped with a flywheel connected to one of the input shafts of the gearbox by means of a controlled coupling.

На фиг.1 изображена кинематическа схема устройства; на фиг.2 вид А на фиг.1. Figure 1 shows the kinematic diagram of the device; in Fig.2, view A in Fig.1.

Устройство включает в себ патрон 1, в верхней части которого смонтирован редуктор 2с двум входными валами 3 и 4. С входным валом 3 редуктора 2 посредством фрикционной муфты 5 соединен электродвигатель 6, оборудованный дисковым тормозом 7. Входной вал 4 редуктора 2 соединен с маховиком 8 посредством управл емой соединительной муфты 9.The device includes a cartridge 1, in the upper part of which a gearbox 2 is mounted with two input shafts 3 and 4. An electric motor 6 equipped with a disc brake 7 is connected to the input shaft 3 of the gearbox 2 by means of a friction clutch 5. The input shaft 4 of the gearbox 2 is connected to the flywheel 8 by means of controlled coupling 9.

Claims

Inside the cartridge 1, the stamp 10 is moved, to the bottom of which the tip 11 is fixed. The stamp is provided with guide lugs that prevent it from turning in the cartridge 1. The screw system of the device consists of a fixed sleeve-nut 12 inside which the drive screw with square square tail moves 14 and an inner screw 15 rigidly connected to the stamp 10. The hollow screw 13 has outer right and inner left slices. The square shank 14 of the hollow screw 13 freely passes through the square hole in the hub of the output gear 16 of the gearbox 2. On both sides of the cartridge 1 large tongs 17 are pivotally attached, castors of which are provided with eyelets 18 for gripping the molds 19 widening down and protrusions 20 for resting in molds with broadening up. The control of large tongs 17 is carried out by 2G hydraulic cylinders. In the plane perpendicular to the large tongs 17, small tongs 22 pivotally mounted on the cross bar 23 are located. The rollers 24 of the tongs of the small tongs 22 move in inclined grooves of the yoke 25. Traverse 23 and the yoke 25 are freely moving along the chuck guides. 1. For the capture of ingots on castors of small ticks 22 cores are provided 2 6.; The device works as follows. To push out the ingot mold 19-ingot 27, which is widening downward, the castors of large mites 17 are filled with eyelets 18 under the lateral projections of the mold 19. Then, the electric motor 6 and the controlled coupling 9 are actuated. Movement from the electric motor 6 through the output gear 16. The gear unit 2 is transmitted to the square shank 14 of the hollow screw 13 and the rotating flywheel 8. When rotating inside the fixed sleeve-nut 12, the hollow screw 13 moves downwards. At the same time, the inner screw .15 is unscrewed from the hollow screw 13 and, together with the stamp 10 and the tip 11, moves out of the cartridge 1, as a result of which the tip 11 abuts against the ingot 27. The resulting force of the interaction of the tip 11 with the ingot 27 creates as a result of kinetic energy conversion the flywheel 8 into the potential energy of ejection and partly due to the force of the electric motor 6, which is limited by the friction clutch 5. To remove ingots that are welded to the ingots molds with widening up the castor conductive protrusions 17, 20 abut against the mold. A control coupling 9 and an electric motor 6 are then activated, which accelerates the flywheel 8 and moves the stamp 10 upwards. In the course of its movement, the stamp 10 with its guide lugs engages the sleeve 25 with inclined grooves and causes it to move upwards as well. In this case, the upper ends of the castors of small ticks 22 are dispensed with, and the lower ends converge, by clamping the cores 26. , profitable part of the paper. After that, the small tongs 22 begin to move upwards, removing the ingot due to the kinetic energy of the flywheel 8 and partially the force of the electric motor 6, which is limited by the friction clutch 5. When removing the broadening upwardly coming out of the molds, the flywheel 8 using a controlled coupling the clutch 9 is disconnected from the ejection mechanism, and the ingots are removed by the force of a single electric motor 6. Thus, in the proposed device, the required power of the electric motor is not determined by the maximum force of ejection or extraction of ingots welded to the molds, but from the condition of their free lift. If, in known cranes, the total ejection force generated by electric motors reaches 400 ts with ingots weighing 32 tons, in the proposed device the starting power of the electric motor can be reduced by about ten times. Apparatus of the Invention A device for ejecting and removing ingots from molds, which contains tick clamps interacting through the mold with a screw system connected to a two-wheel drive gear, so that, in order to increase the ejection efficiency and extraction of ingots, it is equipped with a flywheel connected to one of the input shafts of the gearbox by means of a coupling. Sources of information taken into account in the examination 1. Boginsky K.S. and others. Bridge and metallurgical cranes. M., Mechanical Engineering, 1970, p. 150

2.Ivanchenko F.K. and Pavlenko B.A. Mechanical equipment of steelmaking shops. M., Metallurgists, 1964, p. 229-231.

3. The patent Czechoslovakia 103115, cl. 31 C, 31, published. 1962.

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