CN2033000U - Gantry crane mounting steel structure with big cantilever - Google Patents

Abstract

The utility model discloses a gantry crane mounting steel structure with a big cantilever which keeps the use property and the size of the section of the existing gantry crane, which enlarges track gauge, which enlarges the span of the cantilever end, and which effectively enlarges the service area of the crane. A fulcrum bar is added at the top of two upright posts of the crane; one side of the top of the fulcrum is connected with the span end of the cantilever by a cantilever draw rod, and the other side is connected with the joint at the middle of the cross beam of the balance draw rod, forming a forcing system of the self balance. The utility model has simple process, and is suitable for open-air material plants, processing plants, stacked plants and warehouses with greater cover area.

Description

Gantry crane mounting steel structure with big cantilever

The utility model relates to main component part---the door frame steel structure of the floor type elevator machinery of a kind of a kind of lifting in extensive employings such as building element factory, high large-scale industrial premises, goods yard, dump and building structure foundation trench construction cloth, the liftings of factory building structure construction, loading and unloading, metering usefulness.Particularly a kind of door frame supporting rail is apart from less.And, making its hoisting crane that the very big door frame crane steel structure of work span be arranged by one-sided or the bilateral big cantilever of encorbelmenting symmetrically, its international Patent classificating number can be contained in B66C6/00.

Existing gauntry crane door frame steel structure, generally form by a crossbeam (1) and two principal posts (3), its crossbeam generally adopts the shaped steel material to make, the space truss beam of forming by a few plate plane truss, its column (3) is made generally in two steel structure supporting legs＜4 〉, the bottom connects by a supporting leg pull bar＜5 〉, and top and crossbeam＜1〉are rigidly connected.When carrying out the calculating of door frame internal force, by bean column node for being rigidly connected, bottom line travelling wheel and rail calculate by the rigid frame of hinge joint bearing, and its crossbeam＜1〉can be decomposed into a few plate plane truss calculating of being made up of top boom, lower boom and web member or wholely calculate by space truss.If under hoisting capacity unmodified prerequisite, require to increase the area of effective coverage of hoisting crane, then all be the efficient working range that the span of increase hoisting crane crossbeam or the mode that adds the jib-length of long beam beam with overhanging ends increase hoisting crane usually.The gauntry crane that adopts will satisfy above-mentioned requirements at present, then have only by the cross dimensions that increases overall beam＜1 〉, the sectional dimension that increases rod members such as its top boom, lower boom and web member, and strengthen each each joint structure measure of corresponding rod member bonded assembly, thereby must cause the increase of steel using amount, the increase of crossbeam deadweight, and increased the cost of manufacture of hoisting crane greatly.

It is a kind of under hoisting capacity unmodified prerequisite that task of the present utility model is to provide, under steel using amount does not increase or increases seldom prerequisite substantially, a kind of door arm convolution crane steel structure of being made up of framing members such as crossbeam, cantilever, pole and pull bars that can increase lifting actv. work span effectively is promptly with the transfer crane steel structure of big cantilever.

Task of the present utility model is finished in the following way:

The node place that joins of two pillars (3) on original transfer crane and crossbeam (1) at first, direction perpendicular to the crossbeam chord member, with the hinge joint form pole (6) is installed, and be provided with on the top of pole (6) can with the pull bar bonded assembly joint structure of pole both sides; Near the mid point of crossbeam (1).Near the node place and cantilever (2) termination of top boom, at top boom node place, be respectively equipped with can with pull bar bonded assembly joint structure; One side on pole (6) top is connected by boom tie (9) with the cantilever termination of cantilever, and the opposite side of pole top (12) is connected by balancing pull rod (10) with crossbeam middle part (1).Like this by the pole of bearing pressure (6), the boom tie (9) that bears pulling force and balancing pull rod (10), add crossbeam＜1〉and cantilever＜2 〉, formed hoisting crane and born the horizontal member of stepping on to load.

This structure itself can be understood as to crossbeam middle part and and arranged on left and right sides cantilever termination respectively increases an elastic support.Improved the force-bearing situation of crossbeam＜1〉and cantilever＜2 〉.By the conduction of pole (6), boom tie (9) and balancing pull rod (10) power, make crossbeam (1) and cantilever (2) stressing conditions of balance mutually.Thereby shared crossbeam (1) and the excessive deflection deformation of cantilever (2), also just shared the part internal force of the various rod members of crossbeam (1) and cantilever (2) simultaneously.The utility model crane steel structure form, can be at former transfer crane, keeping under original lifting performance unmodified prerequisite.Increase the length of striding in the crossbeam (1), increase the length of cantilever span, thereby increased effective working area of hoisting crane effectively.Or under the situation that does not change former door frame hoisting crane span, gauge, increase big cantilever in and arranged on left and right sides, thus increased hoisting crane work span effectively, increased hoisting crane work service area effectively.

Below in conjunction with embodiment and accompanying drawing, elaborate.

The transfer crane steel structure front elevational schematic of the big cantilever of Fig. 1 band;

The door jib crane steel structure schematic side view of the big cantilever of Fig. 2 band;

Fig. 3 pole hinge joint structure and endpoint node front elevational schematic;

Fig. 4 pole hinge joint structure and endpoint node schematic side view;

On Fig. 5 crossbeam with pull bar bonded assembly joint structure scheme drawing;

The two hinge swing of Fig. 6 hinge joint device front elevational schematic;

Fig. 7 multiple twin swing hinge joint device schematic top plan view;

Fig. 8 crossbeam and cantilever hinged joint structure schematic side view;

Fig. 9 crossbeam and cantilever be hinged joint structure front elevational schematic partly;

Connection filled pole scheme drawing between Figure 10 crossbeam cantilever beam

With reference to this door of Fig. 1, Fig. 2 arm in conjunction with crane steel structure.The crossbeam (1) that has comprised middle part door frame and general gauntry crane, the lattice truss beam that two root posts (3) are formed.

The truss girder of the triangular section that present embodiment is made up of two plane frameworks.Supporting leg (4) and bottom that column (3) is made up of two steel structure rod members fuse with reinforcing pull rod＜5 〉, top is rigid joint with crossbeam and is connected, to stride＜1〉in order making in the crossbeam and to strengthen and make crossbeam cantilever span＜2〉lengthening, at the node place that the same crossbeams of two root posts＜3〉＜1〉intersect a pole＜6〉has been installed in the present embodiment, with reference to Fig. 3, Fig. 4, its root links to each other with the connection box＜7〉of articulated form with crossbeam＜1〉and column＜3 〉, and its connection mode is by being welded in the articulated manner that otic placode on the connection box＜7〉and pin joint construction＜8〉are realized.Pole＜6〉is provided with the joint structure＜12〉that cylinder lever connecting rod is used, and leaves with boom tie＜9〉bonded assembly pin＜13〉on it, leaves and balancing pull rod＜10〉bonded assembly pin hole＜14〉and fixing the giving of check cable＜11〉box out＜15 〉.

With reference to Fig. 1 and Fig. 5, be provided with the otic placode structure＜16〉that can connect balancing pull rod＜10〉at the middle part of crossbeam＜1 〉, give box out＜19〉that bearing pin is installed are arranged on it.

With reference to Fig. 1, Fig. 6 and Fig. 7, be provided with the otic placodes structures＜17〉of two hinge swing articulated mountings＜18〉that can connect boom tie＜9〉at the end position of cantilever＜2 〉, leave give box out＜19〉that bearing pin is installed on it.Boom tie＜9〉has two for making stress equalization adopt two hinge swing articulated mountings＜18〉when the otic placode structure＜17〉of same cantilever＜2〉connects, and it is realized by triangle connecting panel＜20〉and bearing pin＜21〉joint construction.

With reference to Fig. 1, all be provided with otic placode structure＜22〉at the node place of winding up of two terminations of crossbeam＜1 〉, link to each other by check cable＜11〉in the middle of the preformed hole＜15〉on its same pole＜6〉top, as the defence line, second road of balancing pull rod＜10 〉.

With reference to Fig. 1, Fig. 8 and Fig. 9 and Figure 10, cantilever＜2〉can be an independent member.Lower edge rod end at crossbeam＜1〉two ends is welded with otic placode structure＜24 〉.Leave give box out＜25〉of inserting pin on it, when cantilever＜2〉is installed, earlier the root of cantilever＜2〉is sling, the preformed hole＜25〉of its otic placode＜24〉is aimed at give box out＜25〉of crossbeam＜1〉end otic placode＜24 〉, and penetrate pin, realize cantilever＜2〉and crossbeam＜2〉two members hinged joint structure connection mode at its lower boom place.Then the sling other end of cantilever, be connected with boom tie＜9 〉, constituted by cantilever＜2 〉, boom tie＜9 〉, pole＜6〉balancing pull rod＜10〉and the crossbeam＜1〉that plays the counterbalanced weight effect, the stressed system of self balance of forming, the span of cantilever＜2〉is extended significantly becomes possibility.This external crossbeam＜1〉top boom termination and cantilever＜2〉termination are welded with flange joint construction＜23 〉, the filled pole＜26〉that flange＜23〉joint construction can all be arranged by two ends in case of necessity, crossbeam＜1〉and cantilever＜2〉two winding up of member are linked together by flange connection, make crossbeam＜1〉and cantilever＜2〉constitute the door frame beam member in strong cross sections such as having of a road length.In the present embodiment, also all be provided with flange＜23〉structure in the lower edge position at crossbeam＜1〉both ends and the lower edge place of cantilever＜2〉root, when two member top booms connect with flange, its lower edge also connects with flange, and otic placode＜24〉pin＜25〉structure that cantilever＜2〉and crossbeam＜1〉are articulated and connected is deactivated.

It is 5 tons, the portal crane of 12 meters of lifting height, 15 meters/minute of lifting velocities, 87 meters/minute of road speeds that the utility model has been trial-produceed lifting capacity successfully. Stride in the crossbeam and reached 60 meters, 25 meters of crossbeam cantilever spans, its service width can reach 90 meters, and can be implemented under the prerequisite that does not increase mechanism's equipment, guarantees the crane performance increases the service range that effectively increases crane in few situation at steel using amount. The improvement of this kind use function has enlarged the scope of application of portal crane, is applicable to the usefulness of large-scale stock ground, open-air storehouse, harbour, machinery plant's warehouse for finished product, the lifting transportation operation of member factory. Because rational in infrastructure, section of beam does not increase, the processing installation is simple, and therefore cost of manufacture is lower.

The utility model has been that repacking trial-production has been carried out on the basis of 5 tons gantry in original lifting capacity, and its performance is: play rise: 12 meters; Lifting velocity: 15 meters/minute; Road speed: 87 meters/minute. 60 meters of spans of work are striden 17.5 meters of 25 meters, cantilever span length in wherein, and service width can reach 90 meters, can realize not increasing mechanism's equipment, only increase less steel amount, guarantee effectively to increase the service range of crane under the prerequisite of crane performance. The improvement of this kind use function has enlarged the scope of application of gantry crane, is applicable to the usefulness of large-scale stock ground, open-air storehouse, harbour, machinery plant's warehouse for finished product, the lifting transportation operation of member factory. Be applicable to also simultaneously that factory building construction hoisting and building structure basis construction hoisting, transportation cloth use. Because rational in infrastructure, section of beam does not increase, processing and fabricating is simple, installing/dismounting is easy to maintenance, whole stability better. Cost of manufacture is cheap, and function is much better than gantry crane. The contrast economic cost analysis, the equal span of cost of manufacture of the present utility model, etc. lifting load gantry crane cost of manufacture will reduce more than 40%, so economic benefit is very remarkable.

Claims (4)

1, a kind of two cantilevers＜2 that have 〉, crossbeam＜1 and by 4 supporting leg＜4 two column＜3 forming etc. the steelwork component of the transfer crane formed of several lattice steel construction pieces, it is characterized in that:

A. cantilever＜2〉be a detouchable independence lattice steel construction piece, the lower boom of an end is with articulated form and crossbeam＜1〉lower boom be connected;

B. pole＜6〉be the detouchable supporting member, the lower end is with articulated form and supporting leg＜4〉top is connected, upper end one side is by boom tie＜9〉with cantilever＜2 head links to each other, one side is by balancing pull rod＜10〉with crossbeam＜1 in the middle part of link to each other, by cantilever＜2〉boom tie＜9, pole＜6, balancing pull rod＜10 and crossbeam＜1 be combined into self balance, can prolong the force structure of cantilever span.

2, transfer crane steelwork component according to claim 1 is characterized in that: crossbeam＜1〉top boom end and cantilever＜2〉top boom have the flange joint construction.All there is the filled pole＜26〉of flange configuration to connect by two ends in case of necessity.

3, transfer crane steelwork component according to claim 1 is characterized in that: balancing pull rod＜10〉is provided with safety cable＜11 〉, is connected between pole＜6〉top and crossbeam＜1〉far-end.

4, transfer crane steelwork component according to claim 1 is characterized in that: pole＜6〉and cantilever＜2〉bonded assembly boom tie＜9〉have two, are connected by multiple twin swing articulated mounting and cantilever＜2〉node that winds up.

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