DE6604483U - BOX CARRIER FOR CRANE BRIDGES - Google Patents

Description

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On Antaee Mrtw Mwaon ouch iv # »« j. «« «- ** f, -c- VERLINDE S.A. Loos-Lez-ldlle (France ^

-S ₁ box girder for crane bridges

The innovation concerns the formation of a box girder for crane gaps from two openwork, provided with running surfaces for the trolley, double-T-profile beams, which are arranged parallel to each other and through sen Belt plates welded onto the flanges are connected to one another.

It is well known that overhead cranes consist of an ice-tight rust, which is at least has a beam for the hoist, which rests at its ends on cross beams, which enable the movement of the crane.

Since such a beam, especially during the movement of the crane, has to withstand considerable horizontal loads, it is usually a double T-beam, a full-walled profile beam or a truss formed, which by means of horizontal cross connections with ones. End support is connected and di "-. Has running surface for the hoist. As these overhead traveling cranes are heavy and expensive due to their complex construction

are, attempts have already been made to use tubular support elements with a round or square cross-section to carry the running surface of the hoist. Here, however, the pipe for such a beam have a diameter proportional to the expected load to avoid vertical and horizontal bending stresses to be able to withstand, which, however, the weight of such structures is unnecessarily high.

There are also box girders of the type described above in the various designs also known for other purposes. For example, there is a double T-beam with one on the Flat iron welded onto the upper flange, which serves as a runway for a trolley and is arranged symmetrically on the carrier flange is.

Another known embodiment consists of two parallel and by means of belt plates welded to the outside of the flanges connected double-T girders, whereby the edges of the belt plates parallel to the profile girders up to almost the outer longitudinal edges of the girder flanges and are welded there.

The purpose of the innovation is a technical "further development" of such Box girders for crane bridges made of two openwork, with running surfaces for the trolley provided double-T-profile girders, whereby either the stability of which is increased in a simple manner or, with the same load-bearing capacity, the dimensions and thus the weight are significantly reduced can.

To solve this problem is a box girder for crane bridges The type described above is characterized according to the innovation, that the belt plates with their edges parallel to the profile girders

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above and below the transition point between the bridge and the Flange of the profile girder arranged and along these edges. are welded onto the flanges.

Here, these belt plates can be arranged at certain intervals or they can also be made in one piece, so that they can carry the treads for the trolley or form them themselves.

In the accompanying drawings, there are exemplary embodiments of the innovation, where showj

Fig. 1 is a side view of one end of the overhead crane,

FIG. 2 is a top view corresponding to FIG. 1,

3 shows a profile view of the traveling crane according to FIGS. 1 and 2,

4 shows a perspective partial view of the carrier used for the manufacture of the traveling crane;

Fig. 5 is a plan view of the end of an overhead traveling crane with two

Carriers and
FIG. 6 is a profile view of the traveling crane shown in FIG.

The traveling crane shown in the figures consists essentially of * ■ Y

-. '■ "a carrier 1, which rests with its two ends on a transverse support This transverse beam is equipped with wheels 3 for displacement on transverse to the support rails 4, and with an electric drive motor 5.

The carrier 1 consists of two double-T-beams 6, the web 7 of which in on is known to be broken at 8 at intervals. These profile beams come with a. Space 9 arranged parallel to one another and by at regular intervals on their upper legs 11 and their lower legs 12 iron plates 10 welded to one another tied together.

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The size of the belt plates lO is chosen so that their to the girders parallel edges 13 at right angles above and below the webs 7 lie where they are welded. As a result of this arrangement, the weld seams 14 lie on the most stable part of the carrier, so that oils are practically not exposed to any deformations.

Instead of the connecting plates 10, the carrier carries at its ends Larger plates 15 to reinforce the connection with the cross members. In the embodiment shown in Figures 1-3 ßfor men is the Connection established in a manner known per se using welded and screwed corner plates 16.

The surface of each lower leg 13 of the profile beam forms a Running surface for the rollers 17 of a pulley block 18. The electric motor for this pulley block is fed via an overhead line 19 » which is held at intervals on the top of the carrier 1 and laterally protruding support arms 20.

The electrical lines, not shown, simultaneously feed the Electric motors 5 are installed on the cross members and are preferably easily accessible inside the carrier.

- In the embodiment of the traveling crane shown in Figures 5 and 6 two supports 21 .. according to the invention are provided, which are held parallel to one another at their ends on the cross members.

Each girder 21 itself consists of two openwork double-T girders 6 as described above. Here, however, the upper connection is made via a continuous belt plate 23, which is attached to the upper legs 11 is welded at right angles to the webs 7, and from individual belt plates 10, which are welded at a distance on the lower legs.

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Each of these continuous belt plates carries a running surface 24 for a roll winch, not shown, whose movement on the carriers by the outer stops 25 is limited.

Each of these supports 21 is again held by support arms 20 Overhead line 19 assigned to feed the electric motor for the winch.

Claims (2)

• t β * ί 9 * "β SCHUT ZANSPRUE CHE ϊ 1. Box girder for crane bridges made of two openwork, with a barrel " areas for the trolley provided double-T-profile girders, which arranged parallel to each other and through the outside onto the flanges swollen belt plates are connected to one another, characterized in that that the belt plates (10; 23) with their edges (13) parallel to the profile supports (6) above and below the transition point between the web (7) and, the flange (11, E) of the profile carrier and arranged are welded on the outside of the flanges along these edges. 2. TrSger according to claim 1, characterized gekennzeic1h.net that the on the upper side of the upper flange (H) welded belt plate (23) is formed in one piece and carries the treads (24) for the trolley.