SU861809A1

SU861809A1 - Apparatus for conveying movements into sealed cavity

Info

Publication number: SU861809A1
Application number: SU782679467A
Authority: SU
Inventors: Валентин Алексеевич Борисенко; Валерий Петрович Кращенко; Виктор Евгеньевич Стаценко; Анатолий Владимирович Башта
Original assignee: Институт Проблем Прочности Ан Усср
Priority date: 1978-10-31
Filing date: 1978-10-31
Publication date: 1981-09-07

Description

Изобретение относится к общим устройствам, обеспечивающим нормальную эксплуатацию машин и установок, в частности к устройствам, передающим движение, например, в камеры испытательных установок, в которых * может быть какая-либо среда под различным давлением.The invention relates to general devices that ensure the normal operation of machines and plants, in particular to devices that transmit motion, for example, to the chambers of test installations, in which * there may be any medium under different pressures.

Известно устройство для осуществления возвратно-поступательного перемещения в вакууме, содержащее прямолинейный шток и сильфон, герметизирующий отверстие в полости £1J.A device for the implementation of reciprocating movement in vacuum, containing a rectilinear rod and a bellows, sealing the hole in the cavity £ 1J.

Наиболее близким к изобретению по ₎₅технической сущности и достигаемому результату является устройство для передачи перемещений в герметизированную полость, содержащее кожух с отверстием, уплотнительный элемент jg в виде сильфона, с коленом, к шейке которого прикреплено дно сильфона [2^·Closest to the invention according to _{5 5} technical essence and the achieved result is a device for transferring movements to a sealed cavity containing a casing with an opening, a sealing element jg in the form of a bellows, with a bend to the neck of which is attached the bottom of the bellows [2 ^ ·

Недостатком известных устройств является ограниченная возможность пе2 редачи всех видов перемещений в герметизационную полость.A disadvantage of the known devices is the limited possibility of transferring all types of movements to the sealing cavity.

Цель изобретения - расширение диапазона возможных перемещений штока.The purpose of the invention is the expansion of the range of possible rod movements.

Цель достигается тем, что шток устройства выполнен жестким, а колено штока выполнено с размером, при котором ось штока расположена вне сильфона.The goal is achieved by the fact that the rod of the device is made rigid, and the elbow of the rod is made with a size at which the axis of the rod is located outside the bellows.

На фиг. 1 изображено предлагаемое устройство, разрез; на фиг. 2 - то же вид сверху, в одном из рабочих положений ; на фиг. 3 - схема направлений изгиба верхней части сильфонаIn FIG. 1 shows the proposed device, a section; in FIG. 2 - the same top view in one of the working positions; in FIG. 3 is a diagram of the directions of bending of the upper part of the bellows

Устройство содержит шток, выполненный жестким с ломанной осью и состоящий из ведущей 1 и ведомой 2 частей, колено, содержащее щеки 3 и 4 и шейку 5, которая установлена соосно оси сильфона 6 и проходит через него.· Верхняя часть сильфона соединена с шейкой 5 посредством пайки 7, а его нижняя часть по контуру соединенаThe device comprises a rod made rigid with a broken axis and consisting of a leading 1 and driven 2 parts, an elbow containing the cheeks 3 and 4 and the neck 5, which is installed coaxially with the axis of the bellows 6 and passes through it. · The upper part of the bellows is connected to the neck 5 by soldering 7, and its lower part along the contour is connected

861809 4 нукк полость и тем самым расширяет диапазон возможных перемещений штока.861809 4 nucc cavity and thereby expands the range of possible stem movements.

пайкой 8 с герметизирующим кожухом 9, имеющим Отверстие 10.soldering 8 with a sealing casing 9 having a hole 10.

Устройство работает следующим образом.The device operates as follows.

При воздействии силы на ведущую часть 1 штока через щеку 3, шейку 5 с сильфоном 6, щеку 4 ведомой части 2, находящейся в герметизированной полости, передаются соответствующие действию силы перемещения.When a force is applied to the leading part 1 of the rod through the cheek 3, the neck 5 with a bellows 6, the cheek 4 of the driven part 2 located in the sealed cavity, the corresponding forces of movement are transmitted.

При угловом перемещении ведущей части ί штока уплотнительный элементсильфон 6 - подвергается только сложному изгибу.With the angular movement of the leading part ί of the rod, the sealing element bellows 6 - undergoes only complex bending.

При воздействии крутящего момента М_крсила действия на шток (на фиг.З показана траектория движения верхней части сильфона) раскладывается на две составляющие F^ и F_a . Вектор равнодействующей F всегда направлен по касательной к траектории движения колена устройства.When a torque M _{cr is} applied, the force exerted on the rod (Fig. 3 shows the trajectory of the upper part of the bellows) decomposes into two components F ^ and F _a . The resultant vector F is always directed tangentially to the path of the knee of the device.

Устройство позволяет также осуществлять перемещение на угол оС 35-40°. Конструкция устройства обеспечивает все.виды перемещений в герметизирован·The device also allows movement at an angle of ° C of 35-40 °. The design of the device provides all kinds of movements in a sealed

Claims

The invention relates to general devices that ensure the normal operation of machines and installations, in particular, devices that transmit motion, for example, into test installation chambers, in which there may be some medium under various pressures. A device for performing reciprocating movement in vacuum, comprising a straight linear rod and a bellows, sealing a hole in the cavity of an AS, is known. The device for transferring movements into a sealing cavity containing a hole with a hole, a bellows sealing element with a knee, to the neck of which the bottom of the bellows is attached 12 A disadvantage of the known devices is the limited ability to transfer all kinds displacement in the containment cavity. The purpose of the invention is to expand the range of possible movements of the rod. The goal is achieved by the fact that the rod of the device is made rigid, and the knee of the rod is made with a size in which the axis of the rod is located outside the bellows. FIG. 1 shows the proposed device, the cut; in fig. 2 - the same top view, in one of the working positions; in fig. 3 is a diagram of the directions of bending of the upper part of the bellows. The device comprises a rod made rigid with a broken axis and consisting of a leading 1 and 2 driven parts, a knee containing cheeks 3 and 4 and a neck 5 which is installed coaxially with the axis of the bellows 6 and passes through it. The upper part of the bellows is connected to the neck 5 by soldering 7, and its lower part along the contour is connected by 3 soldering 8 to the sealing casing 9 and has a hole 10. The device works as follows. When a force is exerted on the leading part 1 of the stem through the cheek 3, the neck 5 with the bellows 6, the cheek 4 of the driven part 2 located in the sealed cavity, the corresponding moving forces are transmitted. When the leading part I of the rod is displaced angularly, the sealing element bellows 6 is subjected only to complex bending. When exposed to torque M | The force of action on the scraper (FIG. 3 shows the trajectory of the upper part of the bellows) is decomposed into two components F and F. The vector of the resultant P is always tangential to the trajectory of the knee of the device. The device also makes it possible to move by an angle of ° C. 35-40 The design of the device provides all kinds of movements in the sealing cavity and thereby expands the range of possible movements of the rod. Apparatus of the invention for transferring movements into a sealed cavity containing a casing with an opening, a sealing element in the form of a bellows, a rod with a knee, the bottom of the bellows is attached to the cheek, characterized in that, in order to expand the range of possible movements of the rod, the latter is rigid, and the knee of the rod is made with a size in which the axis of the rod is located outside the bellows. Sources of information taken into account during the examination 1. Lozinsky MG The structure and properties of metals and alloys at high temperatures. M ,, Metallurgizdat, 1963, p. 76.

2. US patent number 3051008, cl. 74-18.1, published. 1962.