SU1142596A1 - Self-raising platform - Google Patents

Abstract

SELF-LIFTING PLATFORM, containing a carrying pontoon, supporting columns, made in the form of screw piles installed in the upper and lower cartridges, and a drive, characterized in that, in order to reduce metal consumption, made with L-shaped brackets, in which the annular protrusion of the support cartridge is located, while the screw piles are freely installed in the upper and lower patrons, and the drive is made in the form of gidrokabestana attached to the pontoon.

Description

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CO One The invention relates to the construction and can be used in the construction of bridge supports. Known self-climbing platforms, containing the upper and 1SHZHNYI ammunition, housing, support columns, lifting devices D 3. However, these platforms are quite material. Closest to the invention of the technical essence and the achieved result is a self-lifting platform, containing supporting pontoon support columns, made in the form of screw piles installed in the upper and lower cartridges, and the drive. The platform in floating condition with raised supporting columns is towed to the place where it is lowered to the bottom or immersed in the ground with the help of elevators, and then the lifting of the carrying pontoon above the surface of the water C2 takes place. The drawbacks of the known device are the complexity and high metal consumption of lifting devices, which need to be put into operation with a power functional equipment. The purpose of the invention is to reduce metal consumption. This goal is achieved by being self-lifting, a platform containing a carrying pontoon, supporting columns made in the form of screw piles installed in the upper and lower cartridges, and a drive equipped with a supporting cartridge with an annular protrusion installed below the upper cartridge made with L-shaped brackets, in which the annular protrusion of the support cartridge is located, while the screw piles are freely installed in the upper inuknem cartridges, and the drive is made in the form of hydrocabestan attached to the pontoon, Figure 1 shows a self-lifting platform shape in the transport position, the overall Wheeden Figure 2 - the same, in the working position; in figs. 3 and 4, node 1.c of various projections. In Figures 1 and 2, h is denoted by the value of the side of the carrying pontoon in the transport position; h height pa passers pontoon above the water in the working position; h is the required depth of the support column in the bottom. The self-lifting platform contains a carrying pontoon 1 with supporting columns 2, on which technological equipment 3 is placed (for example, a mounting crane). Each support column 2 is made in the form of a screw pile, the trunk of which 4 is freely placed in the top 5 and bottom 6 guide cartridges. The latter are fixed on a non-existent pontoon 1 using brackets 7 and 8. In addition, each lifting device is made in the form of a hydraulic capstan 9 mounted on a bearing pontoon 1 and a support cartridge 10, freely placed on a pile shaft 4 below the upper guide cartridge 5. The supporting cartridge 10 has, on top, an annular protrusion 11, and in the pile shaft 4 and the supporting cartridge 10 there are coaxially filled holes 12 in which the supporting finger 13 is inserted. The upper guide cartridge 5 is equipped with a clamping screw 14 and L-shaped brackets 15, which enters the annular ledge 11 of the support cartridge 10. The device operates as follows. The self-lifting platform is transported afloat to the construction site with supporting columns 2 raised to the extreme upper position until the screw blades rest into the lower guide cartridges 6. At the same time, the bearing pins 13 are removed from the holes 12, the onopHbie 10 cartridges are held loosely on brackets 15, and the trunks of screw piles 4 are clamped in the upper guide cartridges 5 with clamping screws .; 14. Upon arrival at the construction site, the support pontoon 1 is braced, clamping screws 14 are loosened, and support columns 2 are alternately lowered by crane 3 to the bottom. The supporting columns are screwed into the ground by hydrocabestanes 9 to the depth. + Ah (where, after which the trunks of the supporting columns 4 and the supporting cartridges 10 are connected with fingers 13. Then the braces of the carrying pontoon are released and the hydrocabestans are simultaneously unscrewed. the support cartridges 10 in the upper guide cartridges 5, mounted on the carrying pontoon 1, the latter is lifted by an amount Db, and the self-lifting platform is brought into its working position. we are in the transport position in reverse order. 311425 Arrangement of supporting columns in the form of screw connections with hydrocabestans and supporting cartridges makes it possible to refuse complex special lifts, since in this case the supporting mechanisms of the columns: columns in the bottom 96 of the river simultaneously appeared and lifting devices. Due to this, in comparison with the basic object L1 J, the metal saving of lifting mechanisms is 25-30%, and the power consumption can be reduced by 1.5-2 times.

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Claims (1)

A SELF-LIFTING PLATFORM containing a supporting pontoon, support columns made in the form of screw piles installed in the upper and lower chucks, and a drive, characterized in that, in order to reduce the metal consumption, it is equipped with a supporting chuck with an annular protrusion mounted below the upper cartridge made with L-shaped brackets, in which an annular protrusion of the supporting cartridge is located, while the screw piles are freely installed in the upper and lower chucks, and the drive is made in the form of a hydrobestan mounted on a pontoon. KZ sl ς © Od 1142596 2