DE29519059U1 - Bridge crane for use in the maintenance of rail vehicles powered by an electrical contact wire - Google Patents

Description

Bridge crane for use in the maintenance of rail vehicles powered by an electric contact wire

The invention relates to a bridge crane for use in the maintenance of rail vehicles fed by an electric contact wire, with two head carriages that can be moved on a double-sided crane runway, a crane bridge that connects the two head carriages to one another, and an electrically movable trolley that carries a hoist.

Bremen:

Hollerallee 32, D-28209 Bremen
PO Box 10 71 27, D-28071 Bremen

Telephone (04 21)3 40 90
Fax (04 21) 3 49 17 68
rcicx 2« 958 bopat d

Berlin: Munich: Leipzig:

UhlandstraKe 173/174 Franz-Joseph-StraOe 38 Philipp-Rosenthai-Straße

D-10719 Berlin ·· &Ggr;>8080* *4ünche» ·· «B-04103 kMpäg ··

Telephone (0 30) 8 81 10 36 · ·&Ggr;|;|&phgr;&igr;&Lgr;·(&Bgr; 89) 3<J70 SO · J Tetephon 193·4 _# 1)&idiagr; 60 J9

Fax {0 30)8 8139 27. Tel'eSiX (0*9) 34>70 10 · . Telfax (03 41) 31 0125

···· TSiSx 5^232 foASS ·· *· ··· ··

Dusseldorf:

Neßlerstrasse M0593 Düsseldorf

Telephone (02 11)71 89 Fax (02 11)7 18 27

Kiel:

Niemannsweg D-24105 Kiel

Telephone (04 31)8 40 Fax (04 31) 8 40

BOEHMERT &B0EHMßR# NDRT)EMAWN ·&ugr;&Ngr;&udigr;·&Rgr;*&Agr;&idiagr;|&Tgr;&Ngr;&Egr;&Kgr;

When using a bridge crane to maintain rail vehicles powered by an electric contact wire, the hoist should be able to be guided as far out as possible over the vehicle to be maintained, but on the other hand it must be prevented that parts of the crane fall below the required safety distance from the contact wire running centrally above the vehicle to be maintained.

The invention is based on the object of creating a bridge crane which is suitable for use in the maintenance of rail vehicles fed via an electric contact wire.

According to the invention, this object is achieved by a trolley carrier which extends parallel to the extension of the crane runway and is attached to the crane bridge so as to be movable transversely to the extension of the crane runway and guides the trolley, whereby the head carrier runs above the height of the contact wire and the trolley carrier runs below the height of the contact wire in such a way that the trolley carrying the hoist can be moved under the contact wire and beyond it.

A preferred embodiment is characterized in that the trolley carrier is attached to the crane bridge via a sliding guide.

The invention is explained below with reference to a drawing.

Fig. 1 is a view of the bridge crane transverse to the crane runway, and

BOEHMERT &&Bgr;0&Egr;&EEgr;&Mgr;&Egr;$?&iacgr; NÖEQDE^LA^N'u^ »PARTNER

Fig. 2 is a sectional view in the direction of the extension of the crane runway.

The bridge crane shown in the figures, which is used for the maintenance of rail vehicles fed by an electric contact wire, can be moved on a crane runway 10 in a maintenance hall that runs transversely to the extension of the tracks (not shown) and thus transversely to the contact wires 22.

The bridge crane consists of two head beams 12 placed on the crane runway 10 via running wheels 26, a crane bridge 14 connecting the two head beams 12 to one another and a trolley 18 carrying a hoist 16. The trolley 18 runs on a trolley beam 20 which is attached to the crane bridge 14 via a sliding guide 24 in such a way that it can be moved transversely to the extension of the crane runway 10. The head beam 10 runs above the height of the contact wire 22 and the trolley beam 20 runs below the height of the contact wire 22, each with a sufficient distance (approximately 100 mm) so that the trolley 18 carrying the hoist 16 can be moved under the contact wire 22 and beyond it.

The head carrier 12 is provided with a drive 28, the sliding guide 24 with a drive 30 and the trolley with a drive 32.

In the drawing, a schematic representation of the hook 18a of the hoist indicates the various positions that the hoist can assume in the various positions of the crane bridge 14, which is shown in dash-dotted lines. It can be seen that the hoist 16 "dives" under the contact wire 16 and the hoist 16 thus reaches a location beyond the crane bridge 14.

BOEHMERT & BOEHMBRi,

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side of the contact wire and thus beyond the middle of the rails (not shown) on which the vehicle 28 to be serviced (shown with the pantograph 30 extended) can be brought.

Claims (2)

BOEHMERT & BOEHMKRT^ K 5227 CLAIMS 1. Bridge crane for use in the maintenance of rail vehicles fed by an electric contact wire, with two crane girders (12) that can be moved on a double-sided crane track (10), a crane bridge (14) connecting the two crane girders (12) to one another and an electrically movable trolley (18) carrying a hoist (16), characterized by a trolley carrier (20) extending parallel to the extension of the crane runway (10), attached to the crane bridge (14) so as to be movable transversely to the extension of the crane runway (10) and guiding the trolley (18), the crane girder (10) running above the height of the contact wire (22) and the trolley carrier (20) running below the height of the contact wire (22) in such a way that the trolley (18) carrying the hoist (16) can be moved under the contact wire (22) and beyond it. BOEHMERT & BOEHMai?, NOKDEMAJW* um? :P*Ä*R-TNER 2. Bridge crane according to claim 1, characterized in that the trolley carrier (20) is attached to the crane bridge (14) via a sliding guide (24).