SU1066111A1 - Powered flow line for assembling and erecting overhead travelling cranes - Google Patents

Abstract

1. Flow mechanized assembly line and installation of bridge cranes containing access roads, storage, picking and assembly sites with a stand for assembling and assembling bridges and end girders of cranes, a stand for assembling cargo carts, a stand for electrical work installed in a given technological sequence and tests and a stand for storing multi-haul hoists of cargo carriages and a crane for transferring assembly units from the stand to the stand, characterized in that and complete assembly. bridge cranes of various sizes and structures at zero and increasing labor productivity; the storage and assembly sites of bridge cranes are equipped with driving trolleys with lifting platforms, and the stand for assembling and aligning bridges and end beams of cranes is mounted two frames on which they are mounted. crane railways, two mobile carriages and hydraulic jacks, while the stand for the assembly of cargo trucks is made in the form frame installed with the possibility of moving along the lay-out guides, on which the crane tracks are adjustable by means of a screw-worm gear, and .. the stand for electrical work and 1 /) tests consists of two racks, mounted for movement along the embedded guides on which four adjustable supports are mounted in the vertical and horizontal planes. 2. Line on P-. 1, which differs from the fact that the stand for the assembly of 0 bridges and end beams of cranes is equipped with movable carriages with lifting platforms for the installation of scaffolding. 3. Line according to claim 1, characterized in that stands for assembling bridges of cranes and cargo carts are equipped with clamps and worm-and-screw lifting mechanisms for combining mounting joints and ensuring the required accuracy of assembling bridges and carts without subsequent adjustment

Description

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The invention relates to the field of engineering, namely to flow lines for the assembly of bridge cranes.

The known mechanized assembly line for assembling and installing bridge cranes 5 contains access roads, storage, picking and assembly sites with a stand for assembling and alignment of 0 bridges and crane end beams installed in a given technological sequence, a stand for electrical work and tests, a stand for storing multi-threaded pulley blocks of cargo carriages and 15 cranes for transferring assembly units from the stand to the stand l.

The disadvantages of the known production line are low labor productivity during assembly and the impossibility of complete assembly of cranes of various sizes.

The purpose of the invention is to provide a complete assembly of bridge cranes of various sizes and designs and to increase labor productivity.

The goal is achieved by the fact that in the proposed production mechanized line for assembling and assembling bridge cranes of the site for storing and assembling bridge crane nodes are equipped with driving Carts with lifting platforms, and the stand for assembling and aligning bridges and end beams of cranes is a stand Two frames, mounted on crane tracks, two movable trolleys and hydraulic jacks, with the possibility of moving along mortgage guides, while a stand for the assembly of 40 cargo carriages is made in view of the frame mounted for movement along mortgage paths, on which are mounted with the help of worm-viit gear and crane runways, and the stand for electrical work and testing is itself two racks installed with the possibility of travel along the mortgage guide , on which four adjustable supports are installed in the vertical and horizontal X-plane.

.. A stand for the assembly of bridges and end beams of cranes can be equipped with movable bogies with lifting platforms for installing scaffolds.

112

Stands for assembling bridges of cranes and cargo carts are equipped with clamps and a worm-and-screw lifting mechanism for combining mounting joints and ensuring the required accuracy of assembling bridges and carriages without subsequent alignment.

Fig. 1 shows a flow line in the plan; in Fig.2 a section aa in Fig.1; on fig.Z - section bb in figure 1, figure 4 - section bb In figure 1; on fig.Z - section GG “. on figure 1; figure 6 is a view of D in figure 1.

The mechanized line for assembling and assembling bridge cranes contains access roads, storage and picking grounds 1 and assembly 2 sites with stand 3 installed in a given technological sequence for assembling and aligning bridges and end beams, stand 4 for assembling cargo carts, stand 5 for electrical work and tests, stand 6 for storing multi-line hauler of cargo carriages, crane 7 for transferring assembly units from the stand to the stand.

The stand 3 for assembling and aligning the bridges 8 and end beams 9 of the cranes is a frame 10 moving along the mortgage guides 11 Crane tracks 12 for mobile carriages 13 and hydraulic jacks 14 for aligning the ends of the end beams in a horizontal plane are mounted on the frame. To install the scaffolding in height, the stand is equipped with movable trolleys from the elevator and platform 15.

Stand A for the assembly of cargo trucks includes a frame 1.6, moving along mortgages, direction 11, which are equipped with underbridge paths 18 adjustable by means of a worm-screw 17. To combine the assembly joints and ensure the required accuracy of assembly, the stand is equipped with clamps and a worm-screw lifting mechanisms.

The stand for electrical work and Test 5 consists of two racks 19, mounted with the possibility of moving along mortgages, for example. equating Four racks are mounted on the vertical and horizontal planes of the support 20.

A stand 6 was also installed in a single stream for the storage of multi-line 310 points of truck trolleys of bridge cranes. The line is equipped with drive carriages 21 with lifting platforms 22. For work in the winter, the line is equipped with a warm 23. The work on the production line is carried out in the following sequence. Bridges, half bridges, end beams, cargo carts are delivered by rail to the storage and picking platforms 1, crane 7 is mounted on lifting platforms 22 of the drive carriages 21, transported by them to the place of storage and after lowering the platform are mounted on supporting structures. Units of the same brands, capacity and size are completed on the same platform, if possible. As required, the bridge crane assemblies by the lifting platform 22 of the trolley 21 are removed from the supporting structures and fed into the operating zone of the crane 7, which transfers them to the assembly platform 2 for assembling the assemblies or completely assembling the cranes. At assembly site 2, depending on the type of work being performed, bridge crane assemblies are supplied either to stand 3 for assembling and alignment of bridges and end beams, or to stand 4 for assembling cargo carts, or to stand 5 for electrical installation and testing, pre-configured to assembly of the appropriate bridge crane size. In stand 3 for assembling and aligning bridges and end beams, the assembly of nodes is performed in the following sequence. The frames 10, depending on the size of the span of the assembled bridge crane, are installed and. fixed on the mortgage guides. To assemble the end beams, crane runways 12, depending on. The lengths of the exit beams are set at a predetermined distance from each other and are horizontally aligned with screws. The end beam is mounted on one of the traveling wheels on the runway 12, and the other on the hydraulic jacks 14. The mobile carriages 13 move along the runway tracks all the way to the ends of the beams and secured. The junction of the ends of the beams is leveled with 1 hydraulic jacks. The gap in the pinhole is selected using screw pairs and mobile carriages. The connection of the end beam joints, depending on the assembled structure, is welded, riveted or bolted. The assembly and alignment of crane bridges from half-bridges is carried out as described above. At stand 4, the assembly of the cargo trucks is performed as follows. Before assembly, the stand is adjusted to the appropriate dimensions of the trolley. For this, the frame 16 is moved along the mortgages sent to Via Via the value corresponding to the dimensions of the width of the cargo carriage. Sub-races 18 with the help of a red-screw gear 17 are installed on the shee, the track of the track of the collected load trolley. The carriages that have collapsible frames are assembled on underboard paths 18, used as a control plane for docking and assembling. After docking, the frame is reversed by 180, the undercarriage is mounted, the frame is reversed to its original position, installed by the traveling wheels on the undercarriage tracks 18, the undercarriage drive is fixed and assembled: installation of engines, gearboxes, etc. Assembled and enlarged cranes or cranes in In general, they are supplied from systems 3 and 4 or directly from storage sites 1 to the stand of electrical installation work and tests 5. To set up the stand, two pillars 19 are moved along mortgage guides and set are in accordance with the span of the crane. The adjustable feet 20 are aligned in the vertical and horizontal planes with the accuracy specified in the data sheet for the assembled crane. On the stand prepared in this way, the entire list of electrical installation work is performed: cable wiring along the crane, installation of control instrumentation, connection of electric motors to the central control panel, etc. During assembly, a check is made to check the operation of all enlarged components and mechanisms of the crane or the crane as a whole.

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On stevde 6, a cargo hooks are suspended and the cables are hooked onto the trolleys winches to store multi-point hauler of truck carts.5

The enlarged and tested P nodes of overhead cranes or cranes in one-piece are installed on the supporting structures of the storage and picking site 1 or on a transport platform and are delivered to the place of installation of the crane.

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The installation of enlarged parts or fully assembled cranes at the workplace is carried out by a stepper lift for the installation of three human structures.

The use of the described invention will allow to increase labor productivity and quality of work during the installation of bridge cranes of various sizes and structures, to reduce the construction time of facilities.

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Claims (3)

1. A mechanized production line for the assembly and installation of bridge cranes, containing access roads, storage areas, picking and assembly with a stand installed in the specified technological sequence for assembling and aligning bridges and end beams of cranes, a stand for assembling freight trolleys, a stand for electrical work and testing and a stand for storing multi-strand chain hoists of freight carts and a crane for transferring assembly units from stand to stand, which is characterized in that, in order to provide a ektnoy assembly. bridge cranes of various sizes and designs at zero level and to increase labor productivity, the storage and assembly sites of bridge cranes are equipped with drive trolleys with lifting platforms, and the stand for assembling and aligning bridges and trailer end beams of cranes is two mounted on the guide rails frames on which crane runways are mounted, two mobile trolleys and hydraulic jacks, while the stand for assembling freight trolleys is made in the form of a frame, installed with the ability to move along the mortgage rails, on which are located crane runways regulated by means of a worm-screw transmission, and the test stand for electrical installation works is two ki installed with the possibility of movement along the mortgage rails on which four adjustable in vertical and horizontal planes are mounted supports 2. A line according to n> 1, characterized in that the stand for assembling 'bridges and end beams of cranes with movable trolleys with lifting platforms for installation of submounts and stand 3. The line according to claim 1, characterized in that the stands for assembling ¹ cranes and cranes bridges are equipped with clamps and worm-screw lifting mechanisms for combining mounting joints and ensuring the required accuracy of assembly of bridges and carts without subsequent reconciliations *