SU806373A1

SU806373A1 - Apparatus for cleaning inner surface of cylindrical articles

Info

Publication number: SU806373A1
Application number: SU792773682A
Authority: SU
Inventors: Владимир Григорьевич Шухатович; Людмила Ивановна Семилетова
Original assignee: Всесоюзный Научно-Исследователь-Ский Институт По Строительствумагистральных Трубопроводов
Priority date: 1979-05-29
Filing date: 1979-05-29
Publication date: 1981-02-23

Description

1one

Изобретение относитс к металлообработке изделий, а точнее к устройствам дл очистки внутренней поверхности цилиндрических изделий и может быть использовано при изготовлении труб, цилиндрических сосудов и оболочек.The invention relates to metalworking products, and more specifically to devices for cleaning the inner surface of cylindrical products and can be used in the manufacture of pipes, cylindrical vessels and shells.

Известно устройство дл очистки внутренней поверхности тел цилиндрической формы, которое содержит рабочую головку с абразивным инструментом , укрепленную на борштанге и подаваемую вдоль образующей обрабатываемой поверхности, и механизм радиальной подачи абразивного инструмента . Указанна рабоча головка выполнена с возможностью поворота вокруг боританги 11 .A device for cleaning the inner surface of cylindrical bodies is known, which contains a working head with an abrasive tool, mounted on a boring bar and fed along the generatrix of the surface to be treated, and a radial feed mechanism for the abrasive tool. Said working head is rotatable around the bitorg 11.

Однако без конструктивной переналадки указанным устройством можно обрабатывать только поверхности одного диаметра.However, without a constructive readjustment, this device can process only surfaces of the same diameter.

Известно также устройство, содержащее два соосно расположенных приводных вала, установленные на внутреннем приводном валу перпендикул рно оси вала с возможн.остью радиального перемещени , рычаги, несущие очистные инструменты, которые смонтированы в подпружиненных опорах.It is also known a device comprising two coaxially arranged drive shafts, mounted on the inner drive shaft perpendicular to the shaft axis with the possibility of radial movement, levers carrying cleaning tools that are mounted in spring-loaded supports.

В устройстве предусмотрена регулировка положени очистных инструментов в зависимости отдиаметра очищаемого издели , котора производитс с помощью пары винт-гайка L2J.The device provides for the adjustment of the position of the cleaning tools depending on the diameter of the product being cleaned, which is produced with the help of a screw-nut pair L2J.

Однако указанна регулировка положени „ очистных инструментов в известном устройстве может быть осуществлена лишь в небольших пределах. However, the specified adjustment of the position of the cleaning tools in the known device can be carried out only within narrow limits.

0 При этом операцию регулировки (вращение регулировочной гайки с делени ми через специально предусьютренное окно в рычаге) можно осуществл ть только после вывода очкстиого 0 In this case, the adjustment operation (rotation of the adjusting nut with divisions through a specially provided window in the lever) can be carried out only after removing the eyeglass

5 устройства из обрабатываемой полости.5 devices from the treated cavity.

Таким образен, даже при небольшом перепаде диаметров очгецаемшс поверхностей очистка .последних требует вывод устройства из обрабатываемой Thus, even with a small difference in the diameters of the ochgems of the surfaces, cleaning the latter requires the removal of the device from the

0 полости, его переналадку и последующий ввод в очища- мую полость. что врем , затрачиваемое йа вспомогательные операции, в несколько превьаиает машинное врем . Это зиачи5 тельно замедл ет процесс обработки изделий и отрицательно сказываетс на производительности устройств в целом.0 cavities, its readjustment and subsequent entry into the cavity being cleaned. that the time spent on auxiliary operations is somewhat greater than the machine time. This slows down the processing of products and adversely affects the performance of the device as a whole.

Claims

In the case of large differential margins (for example, if necessary, the internal stepped cylindrical surfaces of power reactors), processing products using a known device is practically impossible, as it requires a complex readjustment of all the collision (replacement of levers and parts of cleaning tools). The aim of the invention is to expand the technological capabilities of the device and increase its productivity by providing the possibility of continuous processing of the internal surfaces of cylindrical products of different diameters without complicated readjustment of the device. This goal is achieved by the fact that the lever is pivotally mounted on the outer shaft and through a gear inserted into the gear unit is kinematically connected with the central shaft, the device is equipped with a swinging support, installed coaxially with the shafts, and a rod that is connected with one end to move with a swinging support, and the sec is connected to a spring-loaded support that is pivotally connected to the lever. FIG. 1 shows the kinematic scheme of the device; in fig. 2 is a view along arrow A in FIG. 1. A device for cleaning the inner surface of cylindrical products contains two axially located drive shaft, inner 1 and outer 2. On the outer shaft 2 on the matte 3 a lever 4 is pivotally mounted, equipped with a toothed sector 5 meshed with a gear wheel 6 mounted on the shaft 1. The lever 4 carries cleaning cleaning tools 7 (for example, needle-cutters) mounted on a common shaft 8, the bearings of which are placed in the support 9, preloaded by a spring 10. The spring-loaded support 9 is installed on the end of the rod 11, and this end of the rods pivotally attached to the end of the lever. The anti-collar end of the rod 11 is fixed with the possibility of axial movement in the swinging support 12, mounted coaxially with the drive shaft 1 and 2. At the same time, the rod is located so that its axis is perpendicular to the axis of the cleaning tools and the axis of the shaft 1 and 2. The device operates as follows. The adjustment to the required radius R of rotation of the cleaning tools 7, corresponding to the diameter D of the treated surface, is performed by relative rotation of the shafts 1 and

2. At the same time, the gear wheel b, rotating sector 5, rotates lever 4, changing the distance R, given the amount of pressing it to the surface to be cleaned. Then, Vses 1 and 2 are fixed relative to each other and driven together in rotation, turning with cleaning tools. The cleaning tools 7 are then pressed against the surface to be cleaned by a spring 10, the axis of which coincides with the axis of the rod 11 and at any position of the lever 4 perpendicular to the axis of the cleaning tools 7 and the axis of shafts 1 and 2 coinciding with the axis of the surface being cleaned. Thus, the force of the spring at any position of the lever 4 is always directed along the normal to the treated surface, which ensures optimal cleaning conditions, which consist in cutting the outer layer from the treated surface of the product. The cleaning tools 7 are driven by a cardan shaft from the gear of a planetary gearbox driven by a gear mounted on the shaft. At the same time, the cleaning device is moved along the axis of the product being cleaned by means of an actuator, for example, a rack mechanism (not shown in the drawing). In order to change the diameter of the surface to be cleaned, not removing the cleaning device from the cavity to be treated, shafts 1 and 2 are disconnected, for example, using a clutch located at the other end of shafts 1 and 2 in the rotational reduction gear of these shafts (not shown in the drawing) and rotate one shaft relative to the other, braked at the time of adjustment. At the same time, the gear wheel b turns sector 5 and lever 4 in the required direction — increasing or decreasing the radius R. Then the shafts 1 and 2 mutually fix and the process of cleaning a section of the surface being processed of a different diameter is carried out. The process is then repeated. Thus, the proposed device provides the ability to adjust the radius of rotation of the cleaning tool while maintaining the pressing direction of the cleaning tool normal to the treated surface, which greatly expands the technological capabilities of the device in comparison with the known ones. Thus, this allows, without replacing the details of the structure and without taking the cleaning device out of the cavity being cleaned, to effectively clean the inner surfaces of cylindrical containers of different diameters. The invention The device for cleaning the inner surfaces of cylindrical articles