SU929775A1

SU929775A1 - Paper-making machine roll with permeable surface

Info

Publication number: SU929775A1
Application number: SU802970951A
Authority: SU
Inventors: Вадим Аврамович Яковлев
Priority date: 1980-08-01
Filing date: 1980-08-01
Publication date: 1982-05-23

Description

Изобретение относится к целлюлоз'· но*бумажной промышленности и может быть использовано в прессовой и су- шильной частях бумагоделательных машин.The invention relates to cellulose '· * * paper industry and can be used in the press and drying parts of paper machines.

Известен сушильный цилиндр, вклю- ι * чающий полую с открытыми торцами гильзу или ячеистый стакан, размещенный внутри перфорированного цилиндра, на наружную поверхность которого надет цилиндр из металлических нитей. Ячеистый стакан (или гильза) выполнен из радиальных пластин, между которыми проложены гофрированные ленты, и жестко крепится к перфорированному, цилиндру [1]. ¹ A drying cylinder is known, including ι * including a hollow sleeve with open ends or a honeycomb cup placed inside a perforated cylinder, on the outer surface of which a cylinder of metal threads is worn. A cellular glass (or sleeve) is made of radial plates, between which corrugated tapes are laid, and is rigidly attached to a perforated cylinder [1]. ¹

Известен валик бумагоделательной машины, внешняя поверхность которого выполнена в виде сотов, образованных двумя непрерывными полосами, каждая из которых охватывает ось вала. По крайней мере одна полоса изогнута зигзагом между точками соединения с другой полосой. Этот сотовый слой может быть покрыт проволочной сетг У кой [2^.Known roller paper machine, the outer surface of which is made in the form of honeycombs formed by two continuous strips, each of which covers the axis of the shaft. At least one strip is zigzag between points of connection with another strip. This honeycomb layer may be coated with a wire mesh Ukoy [2 ^.

Известен также вал для обработки рулонных материалов, ячеистая обечайка которого выполнена из непрерывной полосы, образующей спираль, и стянута предварительно напряженными анкерными болтами. [3] ·Also known is a shaft for processing rolled materials, the honeycomb of which is made of a continuous strip forming a spiral, and is pulled together by prestressed anchor bolts. [3] ·

Недостаток устройств сострит в том, что валы сложны по конструкции и малонадежны в работе из-за появления усталостных явлений в местах жесткого соединения между собой полос, образующих соты.The disadvantage of the devices is that the shafts are complex in design and unreliable in operation due to the appearance of fatigue phenomena at the places of rigid connection between the bands forming the cells.

Наиболее близким к изобретению является вал с проницаемой поверхностью, включающий каркас, образованный продольными ребрами, закрепленными В торцевых дисках, и рубашку, выполненную в виде набора профилированных и соединенных между собой дисков [4}.Closest to the invention is a shaft with a permeable surface, including a frame formed by longitudinal ribs fixed in the end disks, and a shirt made in the form of a set of profiled and interconnected disks [4}.

Недостаток конструкции заключается в том, что всю нагрузку несет каркас из профилированных дисков, изз 929775 за чего вал не может работать под нагрузкой.The design drawback is that the frame of profiled disks bears the entire load, due to 929775, for which the shaft cannot work under load.

Цель изобретения - упрощение монтажа вала, повышение надежности его работ. 5The purpose of the invention is to simplify the installation of the shaft, increasing the reliability of its work. 5

Поставленная цель достигается тем, что каждый профилированный диск вала, содержащего каркас, образованный продольными ребрами, закрепленными в торцевых дисках, и рубашку, выпол- ю ненную в виде набора профилированных и соединенных между собой дисков, выполнен с пазами и выступами на участках соединения с соседними дисками, причем диски установлены так,что 15 выступы одного из них входят в пазы соседнего.This goal is achieved in that each profiled disk of the shaft containing the frame, formed by longitudinal ribs fixed in the end disks, and a shirt made in the form of a set of profiled and interconnected disks, is made with grooves and protrusions in the areas of connection with neighboring disks, and the disks are mounted so that 15 protrusions of one of them enter the grooves of the adjacent one.

)На фиг. 1 изображен вал, общий вид; на фиг. 2 - часть профилированного диска с углублениями; на фиг.З^- 20 узел I на фиг. 1; на фиг. 4 - продольные ребра с установленными на, них профилированными диаками.) In FIG. 1 shows a shaft, a general view; in FIG. 2 - part of a profiled disk with recesses; on figs. ^- 20 node I in fig. 1; in FIG. 4 - longitudinal ribs with mounted on them, profiled diacs.

Вал включает каркас 1, образованный продольными ребрами 2, закреплен-25 ными концами в торцевых дисках 3, РУбашку 4, выполненную из набора профилированных дисков 5, соединенных между собой и установленных на каркасе с возможностью перемещения по поверх-₃₀ности его ребер. В соприкасающихся стенках профилированных ребер выполнены пазы и выступы 6.The shaft includes a frame 1 formed by longitudinal ribs 2, fixed with 25 ends in the end disks 3, RUhead 4, made of a set of profiled disks 5, interconnected and mounted on the frame with the ability to move on the surface_thirtynostrils of his ribs. In the contacting walls of the profiled ribs grooves and protrusions 6 are made.

Имеются шайбы 7, стягивающие профилированные диски 5 в осевом направлении.There are washers 7 that tighten the profiled disks 5 in the axial direction.

Вал работает следующим образом.The shaft operates as follows.

При работе вала механическая нагрузка на его поверхность воспринимается рубашкой 4, состоящей из свободно установленных профилированных .дисков 5> через них нагрузка передается на несущие продольные ребра 2, которые воспринимают на себя всю нагрузку. При прогибе вала не образуется ₄перенапряжений .в соединениях профилированных дисков 5 между собой, так как диски не соединены жестко между собой, а плавают по поверхности ребер 2.When the shaft is operating, the mechanical load on its surface is perceived by a jacket 4, consisting of freely installed profiled disks 5> through them, the load is transmitted to the bearing longitudinal ribs 2, which absorb the entire load. When the shaft bends, ₄ overvoltages are not formed. In the connections of the profiled disks 5 to each other, since the disks are not rigidly connected to each other, but float on the surface of the ribs 2.

Ориентировочная цена известного сотового вала для бумагоделательных машин обрезной шириной 6720 мм составляет 60 тыс.руб.The estimated price of the well-known honeycomb shaft for paper machines with edged width of 6720 mm is 60 thousand rubles.

Себестоимость предлагаемого вала составляет 40 тыс.руб. за счет упрощения конструкции, обусловленной от г сутствием спаек между дисками.The cost of the proposed shaft is 40 thousand rubles. due to the simplification of the design due to the absence of adhesions between the disks.

Кроме того, предлагаемый вал будет иметь большую надежность в экспл луатации и двойной срок службы в связу с отсутствием перенапряжений в контактирующих элементах рубашки, т.е. в местах соединения дисков, обра зующих соты.In addition, the proposed shaft will have greater reliability in operation and a double service life due to the absence of overvoltages in the contacting elements of the shirt, i.e. at the junction of the disks forming a honeycomb.

Claims

The invention relates to the pulp and paper industry and can be used in the press and dryer parts of paper machines. A drying cylinder is known, comprising a hollow with open ends of the sleeve or a cellular cup placed inside a perforated cylinder, on the outer surface of which a cylinder of metallic threads is put on. The cellular cup (or sleeve) is made of radial plates between which the corrugated ribbons are laid and rigidly attached to the perforated cylinder. A paper machine roller is known, the outer surface of which is made in the form of combs formed by two continuous stripes, each of which covers the shaft axis. At least one strip is zigzagged between points of junction with another strip. This honeycomb layer may be covered with a wire net 2. Also known is a shaft for processing rolled materials, whose mesh has a casing made of a continuous strip forming a spiral and is stretched with prestressed anchor bolts. H The lack of devices is that the shafts are complex in design and unreliable in operation due to the appearance of fatigue effects at the places of rigid interconnection of the strips forming the cells. Closest to the invention is a shaft with a permeable surface, comprising a frame formed by longitudinal ribs fixed in end discs, and a shirt made in the form of a set of profiled and interconnected disks J. The disadvantage of the design is that the frame from profiled disks, from 392 for which the shaft cannot work under load. The purpose of the invention is to simplify the installation, increase the reliability of his work. The goal is achieved by the fact that each profiled shaft disk containing a skeleton formed by longitudinal ribs fixed in the end discs and a shirt made as a set of profiled and interconnected discs are made with grooves and protrusions on the joints with adjacent discs The disks are mounted so that the protrusions of one of them fit into the grooves of the next. ) FIG. 1 shows a shaft, a general view; in fig. 2 - part of the profiled disk with recesses; in FIG. Node I in FIG. one; in fig. k - longitudinal ribs with profiled discs mounted on them. The shaft includes a frame 1, formed by longitudinal ribs 2, fixed ends in an end disk 3 RU noggin, made of a set of profiled disks 5 interconnected and mounted on the frame with the ability to move along the surface of its edges. Grooves and protrusions 6 are made in the adjoining walls of the profiled ribs 6. There are washers 7 which tighten the profiled discs 5 in the axial direction. Ball works as follows. When the shaft is working, the mechanical load on its surface is perceived by the jacket k, consisting of freely installed profiled disks 5i, through which the load is transferred to the bearing longitudinal ribs 2, which take on themselves the entire load. When the shaft is bent, no overvoltages are created in the connections of the profiled discs 5 among themselves, since the discs are not rigidly connected to each other, but float on the surface of the ribs 2. The approximate price of a known cellular shaft for papermakers, a cutting width of 6,720 mm is 6p thousand .rub. The cost of the proposed shaft is 0 thousand rubles. by simplifying the design, due to the absence of adhesions between the discs. In addition, the proposed shaft will have greater reliability in operation and a double service life in St. with no overvoltages in the connecting elements of the jacket, i.e. at the junction of the disks forming the cells. Claims of the invention A shaft with a permeable surface of a papermaking machine, comprising a frame formed by longitudinal ribs fixed in End Discs and a shirt made as a set of profiled and interconnected disks, characterized in that, in order to simplify installation and increase the reliability of the shaft, Each profiled disk is made with grooves and protrusions on the teachings of the connection with adjacent disks, and the disks are mounted so that the protrusions of one of them fit into the grooves of the adjacent one. Sources of information taken into account in the examination 1. UK Patent No. 1035082, cl. Fk G, 1966.

2. The patent of Great Britain f 1366017, cl. F 2 0.1970. 3- USSR Author's Certificate No. 329265, cl. D 21 F 3/00, 1970 .. k. USSR author's certificate number; 85185, cl. D 21 F C / S, 1973 (prototype).

I i.i 111 GTT