RU190500U1 - CONSOLE CRANE FOR INSTALLATION OF SUPPORT BLOCKS AT DEPARTURE OVER 18 M. - Google Patents

Abstract

The utility model relates to the field of bridge construction, namely to the construction of capital bridges using cantilever cranes. The disadvantage of this technical device is that it is used to install the support block on the outreach up to 18 m. To install the support blocks more than 18 m from the edge of the construction requires the use of floating cranes, the assembly and operation of which labor-intensive. s. 4) at radius greater than 18 m.Tehnicheskim result provided by the reduced set of features is to set the block supports on an intermediate support facility under construction at a distance of 18 m from the edge of the bridge structure erected without the use of floating krana.Osuschestvlyaetsya useful model as follows. A lattice boom with a system of cables and winches for lifting and lowering the boom and lifting the support block is pivotally attached to the tip of the console of the crane. lattice boom for the required reach; installation of the support block on the intermediate support being constructed; About the SRK-50 crane, it is necessary to pre-calculate and increase the weight of the counterweight, taking into account the weight of the support block and the required boom clearance, as well as to strengthen the railway track under the cantilever crane. reached

Description

The utility model relates to the field of bridge construction, namely the construction of capital bridges using cantilever cranes.

Known cantilever crane SRK-50 (1. Guide to the device and operation of the crane SRK-50), designed for installation in the span of the bridge metal spans (collapsible and seamless transportable) with a total weight of up to 34.4 m with a laid bridge deck total weight 55 tons and reinforced concrete spans weighing up to 70 tons, length up to 23 m and weighing up to 85 tons, length up to 19 m, for removing spans from railway platforms and carts, as well as for installing support blocks on departure up to 18 m

The cantilever crane SRK-50 (fig. 1, pos. 1) consists of the base part (fig. 1, pos. 2), the main beam (fig. 1, pos. 3), flexible rods, running gear, platform for counterweight, counterweight, and polyspast , three winches, electrical equipment and power plants.

The disadvantage of this technical device is that it is used to install the support block (Fig. 1, pos. 4) at a departure of up to 18 m. To install the support blocks (Fig. 1, pos. 4) at a distance more than 18 m from the edge of the constructed structure ( Fig. 2 pos. 5) requires the use of floating cranes, the assembly and operation of which are labor-intensive.

The task, which the claimed utility model is aimed to solve, is the possibility of installing the SRK-50 crane (Fig. 1 POS. 1) of support blocks (Fig. 1 POS. 4) on the departure of more than 18 m.

This task is solved due to the fact that a lattice boom is pivotally attached to the tip of the console (Fig. 1, pos. 7), and a winch is installed on the base of the crane (Fig. 1, pos. 2) block supports (Fig. 1 Pos. 6) and lifting lattice boom (Fig. 1 Pos. 9). It is recommended to install all of the above winches with an electric drive and control output on a separate console.

The technical result provided by the above set of features is the installation of blocks of supports on the intermediate support being built (Fig. 2 pos. 10) at a distance of more than 18 m from the edge of the constructed bridge structure (Fig. 2 poses. 5) without using a floating crane.

The essence of the utility model is illustrated by drawings, which depict:

The figure 1 shows the snap-in console crane:

pos. 1 - console crane СРК-50;

pos. 2 - the base part of the crane;

pos. 3 - the main beam of the crane;

pos. 4 - support unit;

pos. 6 - winch for lifting the block of supports;

pos. 7 - console tip;

pos. 8 - lattice boom;

pos. 9 - winch lifting lattice boom;

The figure 2 shows the installation of the support block console crane:

pos. 5 - the edge of the constructed structure of the bridge;

pos. 10 - constructed intermediate support.

The utility model is implemented as follows. A lattice boom (Fig. 1 pos. 8) with a system of cables and winches is attached to the tip of the console of the crane (Fig. 1, pos. 7) for raising and lowering the boom and lifting the support block.

The installation of the support is as follows:

slinging support block (Fig. 1, pos. 4);

transportation of the support unit by the crane CPK-50 (Fig. 1 Pos. 1) to the installation site;

lowering lattice boom (Fig. 1 Pos. 8) winch lifting the lattice boom (Fig. 1 Pos. 6) to the desired reach;

installation of the support block (fig. 1 pos. 4) on the intermediate support being constructed (fig. 2 pos. 10);

lining up the support block and the waste of the SRK-50 crane for hooking the next element.

In view of the increase in the mass of the cantilever crane SRK-50, it is necessary to pre-calculate and increase the weight of the counterweight, taking into account the weight of the support block and the required boom reach, as well as to strengthen the railway line under the cantilever crane.

Thus, the claimed technical result, which consists in the possibility of installing the support unit at a distance of more than 18 m, has been achieved.

Used sources

1. Guidelines for the device and operation of the crane SRK-50. M .: Voenizdat, 1974. - 42 p.

Claims (1)

A cantilever crane for installation of support blocks on the departure of more than 18 m, consisting of the base part, the main beam, the flexible chassis, the undercarriage, the counterweight platform, the counterweight, the tackles, three winches, electrical equipment and the power plant, characterized in that a lattice boom is attached, and a winch is installed on the base part of the crane for lifting the block of supports and lifting the lattice boom.

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