SU685399A1

SU685399A1 - Main line of ball-rolling mill

Info

Publication number: SU685399A1
Application number: SU782614854A
Authority: SU
Inventors: Игорь Константинович Тартаковский; Давид Израилевич Жарницкий; Владимир Петрович Бедняков; Сергей Николаевич Колчицкий; Тевио Исаакович Толпин; Павел Иванович Ермолаев; Федор Терентьевич Виноградов; Иван Степанович Ревес; Ирина Степановна Васильева
Original assignee: Предприятие П/Я В-2869
Priority date: 1978-04-18
Filing date: 1978-04-18
Publication date: 1979-09-15

Description

(54) ГЛАВНАЯ ЛИНИЯ СТАНА ДЛЯ ПРОКАТКИ ШАРОВ(54) MAIN LINE FOR MILLING OF BALLS

II

Изобретение относитс к области обработки металлов давлением и может быть наиболее эффективно использовано дл прокатки шаров и коротких тел вращени .The invention relates to the field of metal forming and can be most effectively used for rolling balls and short bodies of rotation.

Известна главна лини прои ивного стана , содержаща электродвигатель, главный щпиндель, щестеренную клеть, универсальный шпиндель и рабочую клеть. Главный шпиндель представл ет собой зубчатую муфту с промежуточным валом, имеющую предохранительные штифты, которые срезаютс при недопустимой перегрузке. Универсальные щпиндели имеют шарнирные муфты карданного типа. В этой главной линии возможна установка валков сим.метрично относительно оси прокатки с помощью универсального шпиндел . Однако поворот одного валка относительно другого валка в главной линии не предусмотрен, так как это не диктуетс технологическими требовани ми процесса.The main line of the production mill is known, comprising an electric motor, a main spindle, a pinion cage, a universal spindle and a working cage. The main spindle is a toothed coupling with an intermediate shaft, having safety pins, which are cut off with unacceptable overload. Universal spindles have cardan joints. In this main line it is possible to install the rolls symmetrically with respect to the rolling axis using a universal spindle. However, rotation of one roll relative to another roll in the main line is not provided, since this is not dictated by the technological requirements of the process.

Наиболее близкой по технической сущности к предлагаемому изобретению вл етс главна лини стана дл прокатки шаров, содержаща шестеренную клеть, соединен-, ную с двигателем, рабочую клеть с валками , и.меющими винтовую нарезку, соедин ющие рабочие валки с шестеренной клетью универсальные щпиндели, св занные с валами щестеренной клетью, каждой из которых выполнен в виде промежуточного вала и двух универсальных щарниров на концах промежуточного вала.The closest to the technical essence of the present invention is the main line of the mill for rolling balls, containing a gear stand connected to the engine, a working stand with rolls, and helical cuts connecting the work rolls with a gear stand universal spindles made with shafts by a caster gear, each of which is made in the form of an intermediate shaft and two universal bows at the ends of the intermediate shaft.

Однако из-за неточности изготовлени перед прокаткой не обеспечивамтс совпадени начала винтовых реборд обоих валков рабочей клети, в результате чего точность щаров невысока .However, due to the inaccuracy of manufacturing before rolling, the beginning of the screw flanges of both rolls of the working stand is not ensured, as a result of which the accuracy of the balls is low.

Целью изобретени вл етс повыщение качества изготавливаемых шаров.The aim of the invention is to increase the quality of the balls produced.

Это достигаетс тем, что предлагаема главна лини стана прокатки шаров снабжена полумуфтой, установленной по крайней мере, на одном ва,1у шестененной клети , а головка универсального шарнира выполнена зацело со второй полумуфтой, выполненной с радиально расположенными тангенциальными пазами и соединенной с полумуфтой , установленной на валу шестеренной клети.This is achieved by the fact that the proposed main line of the rolling mill of balls is equipped with a half coupling installed on at least one VA, first hexed stand, and the universal joint head is made fully with the second coupling half, made with radially arranged tangential grooves and connected to the half coupling installed on shaft gear cage.

Claims

FIG. 1 - image of the proposed main line of the rolling mill balls, general vi; in fig. 2 connecting device; in fig. 3 is a section along A-A in FIG.

2. The main line of the mill for rolling balls contains a working stand 1, a universal spindle 2, a gear stand 3 with output shafts 4 and an engine 5. In the working stand 1 rolls 6, 7 with screw flanges 8 are mounted, forming a screw gauge. In turn, the universal spindle is made in the form of an intermediate shaft 9, on one end of which a universal joint 10 is attached, connected to the work roll 6, on the other end of the shaft connected to the gear stand 3 a universal joint 11 is mounted. Each universal joint consists of two hinge heads 12, 13 and crosses 14. At the end of the intermediate shaft 9, from the side of the gear stand 3, the hinge head 13 of the universal joint 11 is made completely with a half coupling 15 having radially arranged tangential grooves 1 6, through which the bolts 17, connecting the coupling half 15 with the other coupling half 18, made on the output shaft 4 of the gear stand

3. The rolling of balls on the main line of the mill is carried out as follows. To obtain quality balls before rolling, the screw flanges of the 8 rolls, 6, 7 are aligned by turning one roll 6 of stand 1 relative to the other fixed roll 7. The roll 6 is turned while the engine 5 is stopped. At the same time, the bolts 17 and the universal spindle 2 are lowered together with the half coupling 15 turn to coincide the beginning of the screw flanges 8 at the turned roll 6 and the fixed roll 7. The turning is carried out within the angle allowed by the tangential grooves 16. After the calibrations are aligned, the bolts 17 are tightened, fix Sir position of the roll 6. Then the engine is turned on and the process of rolling the balls begins. The proposed main line of the ball mill in comparison with the best samples of similar equipment allows to improve the quality of the balls. The annual economic effect from the use of the invention is approximately 50 thousand rubles. in year. The invention The main line of the mill for rolling balls, containing a gear stand connected to the engine, a working stand with rollers having a screw cut, connecting the work rolls with a chester cage universal spindles connected to shafts of a gear cage, each of which is made into an intermediate shaft and two universal joints at the ends of the intermediate shaft, characterized in that, in order to improve the quality of the balls produced, it is equipped with a coupling half mounted on at least one shaft at the gear stand, and the universal joint head is made completely with the second coupling half, made with radially located tangential grooves and connected with the coupling half mounted on the shaft of the gear cage.