RU190781U1 - CONSOLE CRANE FOR INSTALLATION OF WOODEN SUPPLEMENTS FROM THE SAWN FOREST - Google Patents

Abstract

The utility model relates to the field of bridge construction, namely to the construction of temporary bridges using the “from the head” method. The jib crane can be used to install support blocks at a reach of up to 18 m, however, alternative load-lifting devices must be sought for installing wooden add-ons from sawn timber. The technical result is the ability to install a crane SRK-50 wooden add-ons from sawn timber. In order to achieve a technical result, two electric winches are installed in a specific place on top of the SRK-50 jib crane for the installation of a console; a pair of electric winches is installed to engage the bottom of a wooden superstructure from sawn timber. The top of the wooden structure from sawn timber is hooked with standard slings through the two-horned hook of the main sheave. A useful model is implemented as follows. A beam is attached to the main beam without changing its structural elements to install the winches at a distance that allows the bottom of the superstructure of the temporary bridge support to be hooked in a horizontal position. The engagement of the beam for the installation of winches must be carried out with the possibility of moving it along the main beams of the jib crane depending on the height of the installed superstructure of the support of the temporary bridge. The installation of the superstructure of the support of the temporary bridge is performed in the following order: side of the bridge construction site. The upper part of the support superstructure is attached through standard slinging devices, and the lower part is attached through the above-described pair of winches; SRK-50 crane to capture the next span. Thus, the claimed technical result, which consists in the possibility of installing a superstructure of a temporary bridge support, has been achieved.

Description

The utility model relates to the field of bridge construction, namely the construction of temporary bridges in a “head-on” manner.

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 integral transported) with a total weight of up to 34.4 m with a laid bridge deck up to 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 blocks of supports on departure up to 18 m

The cantilever crane СРК-50 consists of a base part, a main beam, flexible rods, a running gear, a platform for a counterweight, a counterweight, polyspasts, three winches, electrical equipment and a power plant.

A jib crane can be used to install blocks of supports on departure up to 18 m, however, to install wooden superstructures from sawn wood, it is necessary to look for alternative lifting devices.

The technical result is the ability to install a crane CPK-50 (Fig. 1 Pos. 1) wooden superstructures of sawn wood (Fig. 1 Pos. 2).

To achieve a technical result, to the main beam (Fig. 1, pos. 3) of the cantilever crane SRK-50 (Fig. 1, pos. 1), two electric winches are installed at a certain place from above through the beam to install the winches (Fig. 2, pos. 4) Fig. 2 pos. 5), the management of which is summarized in a separate remote.

A pair of electric winches (Fig. 2, pos. 5) is installed to engage the bottom of a wooden superstructure from sawn wood (Fig. 1, pos. 2). The top of the wooden superstructure from sawn wood is hooked by standard slings through the two-horned hook of the main pulley block (Fig. 1, pos.6).

For hooking the bottom of the superstructure of the temporary bridge (the average width of which is 6 m), electric winches (Fig. 2, pos. 5) are mounted on the edge of the beam for installing the winches (Fig. 2, pos. 4), which in turn are attached to the main beam of the cantilever crane (Fig. 1, pos. 3). As a beam for the installation of winches, you can use the K3 rack with a length of 6 meters from the property of the REM-500 flyover.

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

The figure 1 shows the installation of the system of winches on the main beam of a cantilever crane:

pos. 1 - console crane СРК-50;

pos. 2 - a wooden superstructure of a support from the sawn wood;

pos. 3 - the main beam of the cantilever crane;

pos. 6 - two-horned hook of the main pulley;

The figure 2 shows the location of a pair of winches on the main beam of a cantilever crane:

pos. 4 - beam for the installation of winches;

pos. 5 - electric winch.

The utility model is implemented as follows. To the main beam (Fig. 1, pos. 3), without changing its structural elements, a beam is attached to install the winches (Fig. 2, pos. 4) at a distance, allowing the bottom of the superstructure of the temporary bridge to be hooked (Fig. 1, pos. 2) in a horizontal position . The beams for mounting the winches (Fig. 2, pos. 4) must be engaged with the ability to move it along the main beams of the cantilever crane depending on the height of the installed superstructure of the temporary bridge support. Winch (Fig. 2, pos.5) is recommended to be installed with electric drive and control output on a separate console.

Installation of the temporary bridge support add-on is performed in the following order:

slinging of the support superstructure, which is in a horizontal position, the top of which is directed towards the construction site of the bridge. The upper part of the support superstructure is slinged through standard slinging devices, and the lower part is slinged through the above-described pair of winches (Fig. 2, pos. 5);

transportation of the superstructure of the tower with the SRK-50 crane to the installation site;

lowering the bottom of the support superstructure (Fig. 1, pos. 2), giving it a vertical position and installing it on the foundation;

the slingshot of the superstructure of the tower and the release of the SRK-50 crane to capture the next superstructure.

Thus, the claimed technical result, which consists in the possibility of installing a superstructure support temporary bridge 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 installing wooden superstructures made of sawn wood, consisting of the base part, the main beam, the flexible chassis, the undercarriage, the counterweight platform, the counterweight, the tackles, the three winches, the electrical equipment and the power plant, characterized in that at the top, through the beam to install the winches, two electric winches are installed, the control of which is kept in a separate console.

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