SU146933A1 - Device for transporting and installing long products - Google Patents

Description

Arrangements are known for transporting girders of spans, including a carriage moving along guides laid on a structure to be erected, the frame of which is provided with a cantilever carrying a lifting device for the load and equipped with a jack at the end.

A distinctive feature of the proposed device for the transportation and installation of long products, mainly beams of bridge spans, is the placement of the console perpendicular to the longitudinal axis of the carriage and that. that the jack interacts directly with the upper surface of the jack on the grip body of the load lifting device. Such an arrangement of the device allows the beams to be transported longitudinally relative to the guides.

To simplify the assembly and disassembly of the device, it can be made with a console, 1 harniroi articulated with the strut frame ij balanced counterweight to its tail arm with a counterweight.

FIG. 1 schematically shows the proposed device; in fig. 2 is a section along A-A in FIG. one; in fig. 3 - raising the beam of the bridge span using two proposed devices.

A device for transporting and assembling long products, mainly beams of bridge spans, includes a trolley I, which is movable along guides 2 mounted on the erected structure. The frame 3 of the trolley is equipped with a console 4 carrying a lifting device 5 and equipped with a jack 6 at the end. The console 4 is placed perpendicular to the longitudinal axis of the trolley /.

When the load is lifted, it is fixed in the gripping body 7 and lifted by the lifting device 5, and the horizontal position of the load 146933-2 is ensured by a jack 6 interacting directly with its upper surface.

The movement of the device with a load (or without it) along the guides 2 is carried out by means of traction force applied from the outside or by a motor mounted on the trolley /.

In order to simplify the assembly and disassembly of the device, the console 4 is articulated (Fig. 3) with the rack 8 of the cart frame and is balanced by a counterweight suspended to its tail arm 9 (not shown).

The prototype of the device has been successfully applied in the practice of bridge building.

Subject invention

Claims (2)

1. A device for transporting and installing lengthy articles, mainly beams of bridge spans, including a trolley, moving along guides laid on the erected structure, the frame of which is equipped with a cantilever carrying a lifting device for the load and equipped with a jack at the end, characterized in that , in order to provide the possibility of transporting the beams in the longitudinal direction relative to the guides, the console is placed perpendicular to the longitudinal axis of the carriage, and the jack interacts only with the upper surface of the load lifted on a pick-up body. 2. The device according to claim 1, characterized in that, in order to simplify the assembly and disassembly of the device, it is made with a console, hingedly jointed to the frame frame and balanced by a counterweight suspended to its tail arm. J L) ie /// U /////// ////////////////////////////////////// //////////////////////////////////////// // // Fig.Z