SU1245676A1 - Suspended movable scaffold - Google Patents

Description

one

The invention relates to construction and installation work, namely to mobile platforms for work on cylindrical tanks.

The purpose of the invention is to ensure safety when moving along a curved guide and to avoid deformation of the upper edge of the tank wall.

FIG. 1 shows mounted mobile scaffolding, general view; in fig. 2 shows section A-A in FIG. one; in FIG. 3 shows a section BB in FIG. one; in fig. 4 shows section B-B in FIG. 3; in fig. 5 a section of YYY in FIG. one.

The scaffolds have a frame 1, covered with an impermeable woven material 2 and carrying a working platform 3 with a base 4. The frame is made of racks 5 fortified on the base 4, with the stands of the side walls bent, intersecting each other and interconnected in pairs by hinges 6, and their upper ends are also pairwise connected by a spacer mechanism 7. At each hinge 6, there is installed a spring-loaded roller 8, resting on the edge of the wall 9 of the tank. Stiffness, springs is proportional to the responses from the working platform 3, transmitted to the wall of the tank. The rollers 8 with przinami 10 are mounted on hinges 6 by means of clips 11, which can be rotated about a vertical axis to provide movement along a curved surface. Inside the frame 1, there are guides 12, on which the drive 13 and non-driven 14 rollers 15 of the device horizontal movement mechanism are placed with the possibility of vertical movement of the holder. The rubberized rollers 15 are mounted on a support pad 16 hinged on the base 17, which has the possibility of vertical movement relative to the guides 12, which makes it possible to compensate for geometrical irregularities in the shape of the tank and ensures a tight fit of the rollers. The amount of clamping of the rollers is regulated by the forces in the spacer mechanism 7. The working platform 3 with the base 4 is made detachable along the longitudinal axis and in the connector on one side there are roller clamps 18, and on the other, stops 19 with rollers. This ensures the stationary position of the working platform during execution.

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welding and plumbing work. In order to avoid the buildup of the working platform during the production process, the stops 19 have a braking device 20, made in the form of a screw pair. To increase reliability and prevent accidental distortions during work, as well as to work on a double-wall tank, the 5 side walls located outside the mounted wall of the tank have static position catchers 21, which are a screw pair ending in a swing, 5 with a stop with a spherical surface. The working platform 3, on the inner side adjacent to the walls of the tank, has seals 22 and 23 made in the form of folding scoop ladders with a sealing element along the edge. The end surface of the body is sealed by pneumatic sleeves 24 sewn to the edge of the body panel. The tightness of the top of the hull at the point of passage of the racks is provided by a fabric seal 25 sewn to the enclosing structures of the hull. A similarly fixed seal also bakes a fixed position lock. In the upper part of the ends of the device there are eye bolts 26, designed to remove and reposition the device along the tank in the working process. The relocation is carried out by an external lifting means. The device is removed and rearranged with tissue material raised to the mounting position. The device zones located between the posts resting on the edge of the tank are intended for positioning and moving installers during the process of mounting the tank. In order to ensure spatial rigidity, the outermost struts of the frame have lugged links with guides. Between the middle racks of the frame there is an opening for the passage of installers (not shown). The device zones at the end walls are designed to accommodate welding and installation, as well as heating and ventilation equipment.

The operation of the device is as follows.

The wrapped fabric material is raised and secured in a mounting strip.

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After that, with a lifting device for the eye-bolts, the device is raised to a predetermined level and installed with spring-loaded rollers on the edge of the tank. The expansion mechanism clamps the base of the device and provides the necessary clamping to the wall of the reservoir of the rollers of the horizontal displacement mechanism clips. The assemblers raise the device, lower the fabric case, fix it and install

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seals are put into working position, after which they turn on the heating and ventilation unit, creating the necessary atmosphere in the volume of the device. Installation is ready to go. It is moved relative to the tank by means of a horizontal movement mechanism, and after finishing work at one level 10, the installation is moved by a lifting means to the next level.

Yu

Editor E. Papp

Compiled by V. Sukhachev

Tehred O. Gortvay Proofreader M. Demchik

Order 3968/21

Circulation 718

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, ul. Project, 4

Ф14г.5

Subscription

Claims (3)

1. MOUNTED MOBILE SCALES for work on cylindrical tanks, containing a prefabricated sectional frame moving along a curved guide, Bearing platforms, a mechanism for horizontal movement of platforms, made in the form of clips of drive and non-drive rollers mounted on the frame, I want to ensure that, in order to ensure safety when moving along a curved guide and to prevent deformation of the upper edge of the tank wall, each frame section is made of pairs of racks bent at the top, intersecting each other and interconnected in pairs by hinges, while the upper ends of the intersecting parts of the racks are joined by spacers, and a spring-loaded guide roller mounted on each hinge supported on the upper edge of the tank, and the lower part of each section is made detachable and equipped with clamps and stops with rollers, and the clips of the drive and non-drive rollers of the horizontal movement mechanism are mounted on the frame with the possibility of their vertical emescheniya. 2. Scaffolds of pop. 1, differing in that they are equipped with a static position lock made in the form of a screw pair mounted in the lower part of the frame. 3. Scaffolding according to claim. ^ Characterized in that the frame is provided with fabric material, the ends of which are attached to the base of the detachable frame at the bottom, and to the curved posts of the frame at the top. SU. „1245676 1 depicts mounted pe. ; on the 1; on the. 1; figure 5 covered 1 1245676