SU118368A1 - Crane for installation, dismantling and installation of spans, bridge supports, as well as for laying and disassembling parts of the track - Google Patents

Description

Cranes are known for assembling and dismantling the installation of spans, bridge supports, as well as for laying or disassembling parts of a track that rest on a railway track laid on previously installed spans of small or large spans or on a ground surface, using a crane beam. moving along the upper crane itself and having a cantilever protruding beyond its transverse dimensions, using mechanical lifting devices.

However, the well-known cranes have the same disadvantage that they are not universal and are designed to perform a relatively narrow circle of construction work. The described crane differs from the well-known ones in that, in order to give it versatility, the crane trusses have tilted trough-shaped outline without end walls, and between trusses made providing through sluice of spans of small spans or links of the path and moving the crane as on the top along the large spans themselves, and in the required dimensions along the railway track laid along small span structures or the ground bed. The difference is that the crankcase is full turn, the running part of the crane is equipped with an additional pneumatic-wheel drive. The crane was supported on one main undercarriage with the use of an additional mobile support; The front and rear transverse beams of the crane and the associated struts and trusses of the trusses are telescopically sliding, and for a quick transposition of the crane from the well. the paths to the upper spans and for lifting and transporting the truss blocks were applied a telescopically sliding tower supported during the period of work on the main crane truck or on the counterweight, the collapsible crane elements being mounted from several enlarged blocks.

No. 118368

FIG. 1 shows one of the variants of a crane during installation during continuous locking, side view; in fig. 2 shows sections of a crane according to AA and BB in FIG. one; for FIG. 3 shows a variant of the crane of FIG. 1 during the period of mounted installation of spans, side view; in fig. 4 - sections of the crane along explosives and gg in fig. 3

In the crane according to the depicted variant (Fig. 1), two supporting longitudinal trusses 1 and upper longitudinal and transverse connections 2 form a beam of an overturned trough-shaped outline without end walls, resting on the upper spans of large spans or on a railway track laid along small spans , or onto the ground bed with the help of (And telescopically sliding racks 3 and 4 additional mobile support 5 and associated struts and 7, as well as telescopically sliding racks 8 and P of the main undercarriage 10 connected between // oboj frame and crossbars 12, 13 and 14 associated with said main undercarriage struts.

A full-turn dual-console crane-beam 15 with cargo carriages 16 is moved along the upper crane trusses themselves, which ensure the removal of the main truss blocks from the transport trolley 17, the transportation of blocks within the crane structure and installation into place or lifting and moving to the place of laying the links of a normal bridge cloths, and also lifting, transportation and installation of support of a collapsible trestle and similar work.

For stabilization, the crane-beam 15 is equipped with roller grippers for the time of lifting and lowering one or another load.

The main 18 and two additional 19 and 20 self-propelled hoists are located between the crane-carrying trusses, moving along the crane frame and serving the sluice installation of spans, links of a normal railroad track and installation of the driveways and spans of large spans.

For mounting large spans (for leaning on the upper structures), the crane is equipped with removable undercarriages 21 and 22 mounted in transverse frames: front 23 and rear 24; an anchor device 25 is provided to prevent tipping over.

With a conventional cantilever installation of full-transportable spans or through locking through them, as well as during similar works, the crane is protected against tipping over with a specially loaded counterweight 26, having a special rolling path for auxiliary carriages 27 at the top, through which the spans overlapped are under the main 18 and additional 19 self-propelled hoists. To ensure the work and transportation of land: on also on dirt roads, the passage is equipped with an additional pneumatic wheel 28.

Work on the sluice installation of all-transportable spans is performed in the following order.

The span structure prepared for installation is fed on special railway carts to the rear of the crane with a jack mounted on the front auxiliary trolley 27. It is then raised and advanced with a jack mounted on the back of the auxiliary trolley 27. The back end of the span is lifted and, if necessary, It is pulled by means of a light drive winch installed on the crane under the main 18 and an additional 19 self-propelled hoists, which raise sports and install the span on its intended purpose (th place.

The operation of laying the normal bridge deck is performed by a full-turning beam crane 15, transporting the links of the bridge deck fed after the span structure with the help of a special gripper from the outer sides of the crane (from the sides) to the place of their laying.

The installation work by large blocks of large bridge spans reduces to the following.

With the help of lifting mechanisms located on the removable part of the dual console beam of the transport trolley 17 installed on the head of the tele:: copy tower 29, the blocks are lifted and transported by the tower 29 to the fixed part of the transport trolley 17 installed on the upper parts of the previously assembled part of the superstructures. After delivering the two blocks of the main trusses, they are lowered together with the removable part of the two-console beam to the special support cushions of the undercarriage of the transport trolley. By lowering the telescopic tower 29, it is removed from under the two-console beam and the latter transports the blocks to the crane, where the crane-beam 15 lifts them. After lifting the blocks, the cargo carts and the transport trolley / 7 are removed, the blocks are brought closer to the assembled part of the span, and the crane beam 15 with the load is moved and installs the block in nodes.

Subject invention

Claims (7)

1.Krap for installation, dismantling and installation of spans, bridge supports, as well as for laying and disassembling parts of the track, based on the railway track laid on the previously installed spans of small or large spans or on the ground bed using a crane beam moving along the upper crane itself and having a cantilever protruding beyond its transverse dimensions using mechanical lifting devices, characterized in that, in order to give the crane versatility, the supporting trusses have a rolled-up trough-shaped outline without end walls, the distance between trusses being made providing through locking of spans of small spans or links of the path and movement of the crane along the upper spans along the large spans, as well as in the required dimensions of the same spacing path laid out of the small spans laid along the small spans of the spans. m or earth bed. 2. The crane according to claim 1, characterized in that, in order to provide installation and dismantling of collapsible metal racks, as well as laying a normal type of bridge deck and the like, the crane beam is full-turn. 3. Crane on PP. 1 and 2, characterized in that, in order to provide work and transport it, in addition to the railway, also on unpaved roads, its running part is provided with an additional pneumatic-wheel drive. 4. Crane on PP. 1-3, about tl and more, and with the fact that, in order to reduce its weight, the crane is supported on one main undercarriage with the use of an additional mobile support supporting the tail part of the crane design and the front part of the counterweight. 5. Crane on PP. I-4, characterized in that, in order to ensure its passage both along the upper ones (with parallel or polygonal outline of them) of large span structures, and along the railway track laid on the spans of small spans, the front and rear transverse beams The crane and the associated struts and trusses of the trusses are telescopically sliding. No. 118368 6. Crane on PP. 1-5, characterized in that, with c & 1, a quick transposition of the crane as a whole from the railway track to the upper part of large spans, as well as for lifting and transporting blocks of trusses of large spans, a telescopically sliding tower is used, which for installing the crane on the main undercarriage of it, and when lifting and transporting the blocks - on the counterweight design. 7. Crane on PP. 1-6, characterized in that, in order to speed it up from the transport position to the working position, its dismountable elements are mounted from several Ukrainian blocks interconnected. fitid by yes L j j RSerez pr bb