SU845841A1

SU845841A1 - Drum mill drive

Info

Publication number: SU845841A1
Application number: SU792799064A
Authority: SU
Inventors: Сергей Григорьевич Калинин; Андрей Алексеевич Кычма; Юрий Николаевич Микольский; Владимир Теодорович Павлище
Original assignee: Львовский Ордена Ленина Политехни-Ческий Институт
Priority date: 1979-07-17
Filing date: 1979-07-17
Publication date: 1981-07-15

Description

Изобретение относится к машиностроению, преимущественно к промышленности стройматериалов, и предназначено для использования в барабанных мельницах.The invention relates to mechanical engineering, mainly to the building materials industry, and is intended for use in drum mills.

Известен привод барабана, включающего закрепленный на барабане зубчатый венец, подвенцовые шестерни, расположенные в отдельных опорах, редукторы, приводные двигатели и дополнительные, преимущественно гидравлические устройства для выравнивания нагрузок венцовых шестерен* [1]A known drum drive, including a gear ring mounted on a drum, gears located in separate bearings, gearboxes, drive motors and additional, mainly hydraulic devices for balancing the loads of gears * [1]

Однако в этих приводах устройства для выравнивания нагрузок венцовых шестерен сложна по конструкции.However, in these drives the device for balancing the loads of the ring gears is complicated in design.

Наиболее близким к изобретению по технической сущности и достигаемому эффекту является привод барабанной мельницы, содержащий укрепленную; на барабане венцовую и находящиеся в зацеплении подвенцовые шестерни, опоры которых расположены на наклон2 ных направляющих и шарнирно соединены между собой тяговым устройством^ Недостатком данного привода является сложность конструкции, так как для выравнивания нагрузок подвенцо⁵ вых шестерен используются сложные и Дорогостоящие гидроцилиндры. Кроме этого, в приводе не обеспечивается равномерность нагружения двух подвенцовых шестерен ввиду того, что эффективные площади поршней в полостях, связанных трубопроводом, не одинаковые.Closest to the invention in technical essence and the achieved effect is the drive of a drum mill containing reinforced; on the drum, crown gears and mesh gears, the bearings of which are located on inclined guides and are pivotally connected by the traction device. The drawback of this drive is the design complexity, since complex and expensive hydraulic cylinders are used to balance the loads of the pinion ⁵ gears. In addition, the drive does not ensure uniform loading of the two gears due to the fact that the effective area of the pistons in the cavities connected by the pipeline is not the same.

Цель изобретения - упрощение конструкции и повышение равномерности нагружения подвенцовых шестерен.The purpose of the invention is to simplify the design and increase the uniformity of loading of gears.

Указанная цель достигается тем, что в приводе барабанной мельницы, содержащем укрепленную на барабане венцовую и находящиеся в зацеплении подвенцовые шестерни, опоры которых расположены на наклонных направляю1щих и шарнирно' соединены между собой тяговым устройством, последнее вы3.This goal is achieved by the fact that in the drum mill drive, which contains a crown gear and gear gears meshed, the supports of which are located on inclined guides and are pivotally connected to each other by a traction device, the last one is 3.

полнено в виде двуплечего рычага, каждое плечо которого одним концом соединено с соответствующей опорой, а противоположные концы плеч соединены между собой посредством роликового ползуна. . 'made in the form of a two-shouldered lever, each shoulder of which is connected at one end to a corresponding support, and the opposite ends of the shoulders are connected to each other by means of a roller slide. . ''

На чертеже схематично изображен привод барабанной мельницы и узел установки подвенцовых шестерен привода барабана с ползуном и рычагами. Привод барабана 1 включает зубчатый венец 2, находящийся в зацеплении с подвенцовыми шестернями 3 и 4. Подвенцовые шестерни установлены на опорах 5 и 6, расположенных на наклонных направляющих 7 и 8 рамы 9, причем опоры имеют щарнирное крепление с плечами 10 и 11 рычага. Плечи при помощи шарнира 12’соединены с ползуном в виде ролика 13, который может совершать перемещения по направляющим 14 в плоскости симметрии подвенцовых шестерен.The drawing schematically shows the drive of a drum mill and the installation site of the gear gears of the drum drive with a slider and levers. The drive of the drum 1 includes a gear ring 2, which is meshed with the gears 3 and 4. The gears are mounted on the supports 5 and 6 located on the inclined guides 7 and 8 of the frame 9, and the bearings are hinged with shoulders 10 and 11 of the lever. The shoulders with a hinge 12’s connected to the slider in the form of a roller 13, which can move along the guides 14 in the plane of symmetry of the gears.

Привод работает следующим образом.¹В момент пуска за счет наличия зазоров нагрузка увеличивается вначале на одной из подвенцовых шестерен, например 4. Под действием сил, приложенных к ней, опора 5 перемещается в сторону снижения нагрузки, а опора 6 второй подвенцовой шестерни 3 смещается в сторону возрастания нагрузки на эту шестерню. Такое взаимное смещение опор 5 и 6 обеспечивается рычагами 10 и 11, соединенными с ползуном в виде ролика 13, который может перемещаться в заданной плоскости. Когда зазоры в приводе выбраны, под845841 4 ¹венцовые шестерни 3 и 4 оказываются равномерно нагруженными, так как положение ролика 13 устойчиво при одинаковых нагрузках на рычаги 10 и И.The drive operates as follows. ¹ At the time of start-up, due to the presence of gaps, the load increases initially on one of the gears, for example 4. Under the action of the forces applied to it, the support 5 moves in the direction of reducing the load, and the support 6 of the second gear of the gear 3 is shifted in the direction of increasing load on this gear wheel. Such mutual displacement of the supports 5 and 6 is provided by levers 10 and 11 connected to the slide in the form of a roller 13, which can be moved in a given plane. When the gaps in the drive are selected, under 845841 4 ¹ ring gears 3 and 4 are uniformly loaded, since the position of the roller 13 is stable at the same loads on the levers 10 and I.

₅ В связи с заменой гидроцилиндров рычажной системой упрощается и удешевляется конструкция привода барабана с выравниванием нагрузок на подвенцовые шестерни. Повышение равного мерности нагружения двух подвенцовых шестерен способствует увеличению долговечности и эксплуатационной надежности привода в целом. ₅ In connection with the replacement of hydraulic cylinders by the lever system, the design of the drum drive is simplified and cheaper, with load balancing on the pinion gears. An increase in the equal loading dimension of two pinion gears increases the durability and operational reliability of the drive as a whole.

Claims

The invention relates to mechanical engineering, primarily to the building materials industry, and is intended for use in drum mills. The drum drive is known, including a tooth-mounted crown mounted on the drum, podvents gears located in separate supports, gearboxes, drive motors and additional, mainly hydraulic, devices for leveling the loads of crown gears f 1 However designs. The closest to the invention to the technical essence and the achieved effect is the drive of a drum mill, containing a crown mounted on the drum and engaging underwear gears, whose bearings are located on inclined guides and are articulated between each other by a traction device 2 The complexity of the design is due to the fact that complex and expensive hydraulic cylinders are used to equalize the loads of the wedding gears. In addition, the drive does not provide uniform loading of the two podping gears due to the fact that the effective areas of the pistons in the cavities connected by the pipeline are not the same. The purpose of the invention is to simplify the design and increase the uniformity of loading of the gears. This goal is achieved by the fact that in the drive of the drum mill, which contains a crown gear fixed on the drum and meshing gear, the supports of which are located on inclined guides and are jointly connected to each other by a traction device, the last point 3. completed in the form of a two-arm lever, each shoulder of which is connected at one end to the corresponding support, and the opposite ends of the arms are interconnected by means of a roller slider. . The drawing schematically shows the drive of the drum mill and the installation unit of the podventsovye gears of the drum drive with a slider and levers. The DRIVE of the drum 1 includes a toothed crown 2, which is in engagement with the pod gear 3. And 4. The pod gear is mounted on supports 5 and 6 located the inclined guides 7 and 8 of the frame 9, and the supports are hinged with the arms 10 and 11 of the lever. The shoulders, by means of a hinge 12, are connected to a slider in the form of a roller 13, which can move along guide rails 14 in the plane of symmetry of the wedding gears. The drive works as follows. At the time of start-up, due to the presence of gaps, the load increases initially. One of the subterranean gears, for example A. Under the action of the forces applied to it, the support 5 moves in the direction of decreasing the load, and the support 6 of the second suspension gear 3 moves to the side Increase the load on this gear. Such a mutual displacement of the supports 5 and 6 is provided by the levers 10 and P connected to the slider in the form of a roller 13, which can move in a given plane. When the gaps in the drive are selected, the gears 3 and 4 are evenly loaded, since the position of the roller 13 is stable under the same loads on the levers 10 and 11. In connection with the replacement of the hydraulic cylinders by the lever system, the drum drive design becomes easier and cheaper to equalize the loads on the ground gears. Increasing the load uniformity of the two gears increases the durability and operational reliability of the drive as a whole. DETAILED DESCRIPTION OF THE INVENTION A drum mill drive comprising a crown hinge mounted on a drum and engaging gear wheels, whose supports are located on oblique directions and are articulated between each other by a traction device, characterized in that, in order to simplify the design and increase the uniformity of the hanger gears, the traction device is made in the form of a two-armed arm, each arm of which is connected at one end to the corresponding support, and the opposite ends of the arms are connected between fight by roller slider. Sources of information taken into account during the examination 1. USSR author's certificate No. 568457, cl. B 02 C 17/24 1974.

2. USSR author's certificate number 355981, cl. B 02 C 17/24, 1970.