CN1234363A

CN1234363A - Crane support

Info

Publication number: CN1234363A
Application number: CN 99101011
Authority: CN
Inventors: 霍尔格·施托勒巴赫; 贝恩德·阿尔贝特
Original assignee: MAN Takraf Fordertechnik GmbH
Current assignee: Takraf GmbH
Priority date: 1998-05-06
Filing date: 1999-01-07
Publication date: 1999-11-10
Anticipated expiration: 2019-01-07
Also published as: DE19820098C2; DE19820098A1; CN1100717C

Abstract

A double tracks operated trolley has certain minimum orbit width decided by special application situation. It is must be avoided the stress added to specific area by different load. Cross brackets (11) for trolley orbit stent (7, 8) is designed in a special structure. A concave is located on the top of each web plate to surround the main bracket (1) partly from bottom by the cross brackets (11), which are welded to bulkhead plates (6) on perpendicular planes. The upside (13) of the cross brackets (11) continue on the both side of the bulkhead plates (6) inside the main bracket (1) through two level ribbed slabs (13c, 13d).

Description

Crane support

The present invention relates to a kind of support by the claim 1 double rail suspension dolly that travels as described in the preamble, it is by a trolley track support as the box support of main support and two crane bridges that are used for a gauntry crane that are provided with in zone, main support top and the bottom in both sides, and this hoisting crane is provided with the cant cantilever that can upwards tumble in case of necessity (Kragarm) in addition.

Because the double track running trolley should have a definite minimum track width according to being used for the special usage condition of faultless function, this support Design gets broad when only using the bridge support of a solid web girder (Vollwand) structure.Therefore a known this scheme, wherein two trolley tracks that are used for the underslung trolley on the bridge support are arranged on two webs of box section outside.On its whole length, should be designed to so wide to this bridge support.This just means the Master Cost of a raising, and this will be considered during further to the whole Design of device of the pedestal of crane rail to the dolly that travels by supporting member.The wind-force of the raising that occurs owing to bigger supporting width in addition when the portal crane of the cantilever that has the nearly water side that can upwards tumble should be considered during at calculated strength and reliability.

In order to overcome above-mentioned shortcoming, the bridge support of known use box type construction is provided with additional trolley track support in its both sides.This trolley track support is arranged on as the lower area of the bridge support of main support and by transverse bracket and links to each other.A this scheme has this shortcoming, maximum load occurs in the lower angle zone of bridge support cross-sectional plane, because the principal stress of main support and transverse bracket directly superposes herein and produces heavily stressed zone thus, it must be stable especially.

In addition from the known a kind of this crane supports that are used for the underslung trolley of a band double track traveling gear that are used for of DD 104 274, wherein the trolley track support that is located on the main support of both sides is fixed by the cantilever of hinged shape.The main support that causes owing to vertical and bending level of support in this scheme compensates with respect to the mobile quilt of two trolley track supports and can avoid overstress thus.

Known in addition bridge-type and cant cantilever, it is made up of a main support and the trolley track support that is provided with in its both sides, and wherein main support is a lattice-shaped structure.In this embodiment, also can appear at same problem in the above-mentioned solid web girder structure in principle in the zone in special requirement aspect the stress stack.

Also quote these prior aries for the sake of completeness, promptly wherein also use the support that is used for the suspension type dolly that has the double track traveling mechanism of other cross-sectional plane such as rectangular cross section.Also cicada has the support of a triangle or trapezoidal cross-section.But still can not address the above problem by the cross-sectional plane that changes.

The objective of the invention is to: design a kind of support of crane bridge of the double rail suspension dolly that travels like this, make structure that the principal stress of transverse bracket and main support directly do not accumulate in area of high stress and transverse bracket be set to be connected trolley track support and main support the processing of a favourable welding technique and technology be provided.

The feature of main claim can realize this purpose.

One transverse bracket with its web always like this with respect to the web setting of main support, make they two be positioned at orthogonal plane and be welded to connect and form a supporting member that runs through by it.It in epimere (Obergurt) the variation that be combined in reality by a plurality of single parts of order by the desired transverse bracket of box-shaped cross-sectional plane of main support of guiding, can not have problems, because can not have steric restriction ground to combine with favourable position of weld and process sequence.Upper and lower section of transverse bracket is connected the angle of passing judgment on from static state and sees it is very favourable with upper and lower section of the trolley track support direct.

Two slot cut positions in the angular zone of transverse bracket web have two kinds of meanings: on the one hand the web of transverse bracket and main support are not interconnected in this zone, so that the stress in the main support does not transmit in the transverse bracket; Can the time avoid the power of enforcement between two supports and the canting that may occur in assembling on the other hand.

The design of the dimension scale relation of the present invention aspect structure is the content of dependent claims.The definite of its relation should be able to reach, and the stress that produces owing to the load in the member occurs with the favourable size for whole apparatus function respectively.

From the explanation of a preferred embodiment of following description and accompanying drawing, can obtain other details and advantage of theme of the present invention:

Fig. 1 is the front cross sectional view of a support;

Fig. 2 is the perspective views of supports according by Fig. 1;

Support by Fig. 1 is used for a hoisting crane crane span structure, and a double track underslung trolley is provided with movably along this crane span structure.This crane bridge is preferred for container handling crane, but the gauntry crane of the operation that also can be used for grabbing bucket.Main support 1 form real abdomen box-shaped beam frame (Vollwandkastentraeger) and by two webs 2 and 3 and epimere 4 and hypomere (Untergurt) 5 form.In the built on stilts heart cross-sectional plane of box-shaped beam, be provided with bulkhead plating 6 apart from a distance.Parallel two vehicle guide supports 7 and 8 of being provided with in the both sides of main support 1, they are for double T shape and carry trolley track 9 and 10.

As can be seen from Figure 2, two vehicle guide supports 7 link to each other with main support 1 by transverse bracket 11 at the level place of a bulkhead plating 6 with 8.Transverse bracket 11 is by web 12 and upper and lower section 13,14 composition.The upper area of web 12 in the centre is provided with the recess of a square, and this web 12 encases this main support 1 from below thus.The recess size is made so in this embodiment, and promptly the rectangular cross section of main support 1 is besieged up to its height of 1/3 to 1/2.Best size should be decided on concrete condition of service.Main support 1 is welded to each other with transverse bracket 11 is in the same place.In two lower angle zones of the recess of web 12, process the slot cut place (Freischnitt) 15 and 16 of additional circular arc.Can reach two effects by this slot cut place 15 and 16: can obtain the zone of unstressed concentrated (Kerbfrei) in this bight and between main support 1 and transverse bracket 11, not have the transmission that is welded to connect thereby does not also just have power in the peak load zone that the stack owing to power produces.

The hypomere 14 of transverse bracket 11 extend in a horizontal plane and directly and the bottom web of two vehicle guide supports and 7 and 8 connect and same and its welding.The last seamed edge of the web of transverse bracket 11 is tilted to down from two webs 2 of main support 1 and 3 directions in vehicle guide support 7 and 8 and extends.Two parts 13a and 13b are as the top web welding of epimere 13 and web 12 and two vehicle guide supports 7 and 8 on this inclined-plane.This epimere 13 links to each other in the both sides of bulkhead plating 6 with 13d by a horizontal ribs 13c respectively in main support 1 inside between two upper-part 13a and 13b.Formed an arm-tie that runs through (Zuggurt) thus.

The solid web girder support (Vollwandtraeger) that is used for a crane bridge and/or a cantilever beam support of such configuration can be made economically, because single parts can be set so mutually, make that all parts to be connected can be linked to each other well and can use a simple manufacturing process when welding.Can guarantee by structure construction that at this main support 1 and transverse bracket 11 principal stress separately can not be superimposed upon area of high stress.The guiding of the part by the transverse bracket 11 below main support 1 and two slot cut districts 15 and 16 specifically obtains a stress distribution between the transverse bracket of crooked main support 1 of opposing and bogie wheel load.

Claims

1. the support that is used for hoisting crane, described support is bridge-type and/or cant cantilever, it has a double track cantilever dolly to move thereon, cut the vehicle guide support with dolly moving guide rail (9 and 10) (7 and 8) of shape and form in the double T that has of the lower area setting separated by a distance of main support (1) by transverse bracket (11) in its both sides by a main support (1) and one, described main support is solid web girder one box-section trestle and is provided with bulkhead plating (6), it is characterized in that, each transverse bracket (11) is a support that runs through, it is located at the middle part of main support (1) and admits a vehicle guide support (7 and 8) and it to be made up of a web that runs through (12) respectively at its every end, this web (12) has the top rectangle recess of a centre, and thus from the bottom the vertical plane surface of bulkhead plating (6) the box section of local envelopment main support (1), wherein said recess has unstressed concentrated slot cut portion (15 and 16) in the angular region, two bottoms in the hypomere zone of main support (1), the horizontal downside of the web (12) of transverse bracket (11) is provided with a hypomere (14) that is parallel to the hypomere of transverse bracket (11), two hypomeres of it and trolley track support (7 and 8) constitute a common plane and are fixedly linked with it, the right and the top edge left side of web (12) is tilted to down to trolley track support (7 and 8) from top respectively extends and is respectively equipped with a upper-part (13a and 13b), they link to each other with the epimere separately of little kickstand (7 and 8) respectively, two upper-parts (13a and 13b) of described crossbeam (11) further continue into two horizontal ribs (13c and 13d) in the inside of main support (1) in the both sides of bulkhead plating (6), and the epimere (13) of such transverse bracket (11) forms the arm-tie of a top bending that runs through.

2. by the described crane support of claim 1, it is characterized in that: the web (12) of described transverse bracket (11) highly locates to surround main support (1) at 1/4th of box-shaped cross-sectional plane at least.

3. by the described crane support of claim 1, it is characterized in that the distance between the hypomere (5) of main support (1) and the hypomere (14) of transverse bracket (11) at least should be so big, make the principal stress of transverse bracket and main support (1 and 11) not superpose.