CN102887437A - Double-super cantilever type electromagnetic gantry crane with large base distance - Google Patents
Double-super cantilever type electromagnetic gantry crane with large base distance Download PDFInfo
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- CN102887437A CN102887437A CN2011102045889A CN201110204588A CN102887437A CN 102887437 A CN102887437 A CN 102887437A CN 2011102045889 A CN2011102045889 A CN 2011102045889A CN 201110204588 A CN201110204588 A CN 201110204588A CN 102887437 A CN102887437 A CN 102887437A
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- 239000000725 suspension Substances 0.000 claims description 15
- 241000826860 Trapezium Species 0.000 claims description 6
- 230000009184 walking Effects 0.000 abstract description 5
- 230000033001 locomotion Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
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Abstract
The invention discloses a double-super cantilever type electromagnetic gantry crane with a large base distance. The double-super cantilever type electromagnetic gantry crane comprises main beams, wherein the main beams are supported with support legs, and a small vehicle is arranged on the main beams. The small vehicle comprises a vehicle frame. A hoisting mechanism and a walking mechanism are arranged on the vehicle frame. A rotary electromagnetic hanging frame is connected to the hoisting mechanism of the small vehicle through a steel wire rope, and the double-super cantilever type electromagnetic gantry crane is characterized in that each support leg is a bracket of which at the least a top end is provided with a cross beam; the two main beams are respectively fixed on bottom surfaces of cross beams which are fixed on top ends of the support legs. Sections of the main beams are right trapezoids, upper end surfaces of the main beams which are narrow are contacted with the bottom surfaces of the cross beams on the top ends of the support legs, and inclined surfaces of the two main beams are oppositely arranged. Support plates are arranged at lower parts of the inclined surfaces of the main beams, rails are arranged on the support plates, and the small vehicle is arranged on the rails. Trusses are arranged on tops of the main beams, and crossed pulling rods are respectively arranged between the trusses and the support legs. A relationship between a span S of the crane and cantilevers L of the main beams is L is larger than 1.4S, and the relationship between the base distance B and height H from the crane to a bottom part of the beam is B is greater than or equal to 1.75H. The crane has a large cantilever and a large base distance, and can directly hoist steel products to a storage yard in span through inner parts of the support legs.
Description
Technical field
The present invention is specifically related to a kind of electromagnetic gantry crane, particularly a kind of two large cardinal distance electromagnetic gantry crane of super cantilever.
Background technology
Electromagnetic gantry crane is the equipment that utilizes electromagnetic principle carrying iron and steel article.
The technical scheme of prior art one: universal electromagnetic transfer crane.
Structural shape: this kind hoisting crane mainly is made of girder, supporting leg, dolly, electromagnetism suspension bracket etc., satisfies the carrying of steel plate or steel.The cantilever L of this kind hoisting crane and the relation of span S are generally: L=(0.25～0.35) S, and namely cantilever is generally less than span; Next is that such hoisting crane cardinal distance is less, because of height H at the bottom of such crane beam mostly tens meters scopes, its cardinal distance B is generally: B=(0.3～0.5) H.Such hoisting crane can only be used in common occasion, such as steel loading and unloading plant area, steel on truck or from truck is unloaded.
Principle of work: hoisting crane is sling sheet material or steel at the cantilever place, because sheet material or steel may length reach 12～16m, so steel length is opened crotch greater than supporting leg usually, steel just can not be by opening crotch sidewards the time between crane support, pass through supporting leg after steel need to being rotated 90 degree, could be with steel hoisting to striding in the interior stockyard.
The shortcoming of prior art one:
1. cantilever is less, can not satisfy stevedoring steel usefulness, is that cantilever is larger with transfer crane in the characteristics of stevedoring steel, is enough to dolly is reached the barge center.
2. cardinal distance is less, bumps supporting leg for avoiding steel, and steel need to turn to by supporting leg the time, and suspender need increase spinning movement, and work efficiency reduces.
The technical scheme of prior art two: electromagnetism high pedestal jib crane.
Structural shape: all adopt the electromagnetism span winch to load and unload steel at general harbour at present, such hoisting crane mainly is comprised of boom system, upper rotary column (or Shears), rotating disk, cylinder gate seat, large vehicle walking, lifting mechanism, luffing mechanism, rotating mechanism etc.Have little gauge, large cantilever characteristics, can adapt to the stevedoring operating mode.
Principle of work: boom system head distribution Magnetic hanger, the electromagnetism suspension bracket is sling the steel in the barge, realizes gyroscopic movement by rotating mechanism, steel is transported to the land side from the water side, and is put on the stockyard.
The shortcoming of prior art two:
1. such hoisting crane cost is high, and mechanism is various, complex structure, and poor reliability, complete machine stability is poor, need to add the facilities such as counterweight, and the complete machine weight ratio is heavier.
2. such hoisting crane work efficient is lower, and hoisting crane is carried to the land side to steel from the water side must make gyroscopic movement, and this has just lengthened the steel hoisting path, and with the time expand of a cycle of operations, work efficiency is lower.
3. safety was low when such hoisting crane was done gyroscopic movement, and gyroscopic movement can cause larger force of inertia when brake, and crane structure spare is stressed abominable, therefore needed structure is run business into strong one and increased the hoisting crane deadweight; Gyroscopic movement causes that steel rolling momentum is large in addition, when this can cause loading and unloading bit time is lengthened, and the corresponding danger that brings is rocked in increase.
Summary of the invention
The invention provides a kind of two large cardinal distance electromagnetic gantry crane of super cantilever, purpose is to solve the prior art problem, provide that a kind of cantilever is large, cardinal distance is large, can not need to the long steel rotation of length, directly by opening the crotch handling between supporting leg to the hoisting crane of striding in the interior stockyard.
The present invention's technical scheme that adopts of dealing with problems is:
The large cardinal distance electromagnetic gantry crane of two super cantilevers has girder, and girder is supported by supporting leg, and girder is provided with stay bearing plate, is provided with track on the stay bearing plate, and the dolly setting in orbit; Dolly includes vehicle frame, vehicle frame is provided with lifting mechanism, traveling gear, and the rotating electromagnetic suspension bracket is connected on the lifting mechanism of dolly by steel rope, it is characterized in that: described girder is two girders, supporting leg is closure frame, and two girders are separately fixed at two ends, crossbeam bottom surface, supporting leg top; Be provided with truss at the girder top, be provided with intertie between truss and supporting leg, intertie is fixed together respectively at truss and supporting leg; The pass of this hoisting crane span S and kingpost cantalever L is L＞1.4S; The pass of high H is B 〉=1.75H at the bottom of cardinal distance B and the crane beam.
Described supporting leg is rectangular frame.
The cross-sectional plane of described girder is right-angled trapezium, and the narrow upper surface of width of main beam contacts with crossbeam bottom surface, supporting leg top.
The inclined-plane of described two girders arranges in opposite directions, and the bottom, inclined-plane of girder is provided with stay bearing plate, and stay bearing plate is provided with track, and the dolly setting in orbit.
The inclined-plane of described two girders arranges dorsad, and the bottom, inclined-plane of girder is provided with stay bearing plate, and stay bearing plate is provided with track, and the dolly setting in orbit.
Beneficial effect of the present invention:
1. the pass of the span S of this hoisting crane and kingpost cantalever L is L＞1.4S; The pass of high H is B 〉=1.75H at the bottom of cardinal distance B and the crane beam, and its cantilever increases, and supporting leg is opened grade spacing and increased.Increase because supporting leg is opened grade spacing, thus long steel of length etc. do not need to be rotated can be directly by opening shelves between supporting leg.Change horizontal rectilinear motion for long its transportation routes such as steel into by the movement in a curve of horizontal rotation, realize carrying efficiently, cheaply the path.This hoisting crane has super cantilever, large cardinal distance characteristics, to satisfy the demand of efficient stevedoring steel.
2. if existing structure hoisting crane cardinal distance is larger, then trolley span will be very large, and the saddle beam of joining on the girder will be very long, and whole crane structure is inharmonious, and is stressed also bad.Supporting leg adopts rectangular frame structure in the hoisting crane of the present invention, and be that two girders of right-angled trapezium hang on crossbeam bottom surface, supporting leg top with cross-sectional plane, cancelled the saddle beam, with dolly be installed in two girders to open shelves inner, can change trolley span by regulating the girder spacing.This structure is satisfying under the prerequisite of large cardinal distance, has also realized less trolley span simultaneously.
3. be provided with truss at girder, and between truss and supporting leg, be provided with intertie, intertie is fixed together with truss and supporting leg respectively, and this structure can make intensity, the rigidity of jib boom reach the regulation of hoist design specification (GB/T 3811) in the structure of large cantilever of the present invention, large cardinal distance.
4. hoisting crane of the present invention is a kind of two large cardinal distance electromagnetic gantry crane of super cantilever, namely change gantry crane for general use and can not satisfy the characteristics that the large cantilever of harbour loads and unloads, substituted again expensive, safety is not high, the electromagnetism span winch of inefficiency, realized harbour efficiently, steel loading and unloading solution cheaply.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is birds-eye view of the present invention;
Fig. 3 is that the A of Fig. 1 is to view;
Fig. 4 is B section enlarged drawing among Fig. 3;
Fig. 5 is that dolly is arranged on the another kind of structural representation on the girder.
Among the figure: 1. girder, 2. supporting leg, 3. dolly, 4. rotating electromagnetic suspension bracket, 51. top crossbeams, 52. bottom crossbeams, 6. inclined-plane, 7. stay bearing plate, 8. track, 9. truss, 10. intertie, 11. electrical houses, 12. large vehicle walkings, 13. grappling rail clamping devices
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
The large cardinal distance electromagnetic gantry crane of two super cantilever as shown in Fig. 1 to Fig. 4 has two girders 1,1, and girder 1 is supported by supporting leg 2.Described supporting leg 2 is rectangular frame, and two girders 1,1 are separately fixed at two ends, crossbeam 51 bottom surface, supporting leg top, namely at the two girders 2 of supporting leg 2 interior suspensions.The cross-sectional plane of described girder 1 is right-angled trapezium, and the narrow upper surface of girder 1 width contacts with crossbeam 51 bottom surfaces, supporting leg top, and two girders 1,1 inclined- plane 6,6 arrange in opposite directions.6 bottoms, inclined-plane of girder 1 are provided with stay bearing plate 7, and stay bearing plate 7 is provided with track 8, and dolly 3 is arranged on the track 8.Dolly 3 includes vehicle frame, and vehicle frame is provided with lifting mechanism, traveling gear, and rotating electromagnetic suspension bracket 4 is connected to by steel rope on the lifting mechanism of dolly, and the dolly power supply is installed in single girder bottom surface.The pass of this hoisting crane span S and kingpost cantalever L is L＞1.4S, and the pass of high H is B 〉=1.75H at the bottom of cardinal distance B and the crane beam.Because the relation of high H exceeds normal ranges at the bottom of the cantilever L in the present embodiment and the relation of span S and cardinal distance B and the crane beam, for reaching intensity, the rigidity requirement of hoist design specification (GB/T 3811) regulation, be provided with truss 9 at girder 2 tops, be provided with intertie 10 at truss 9 and 2 of supporting legs, intertie 10 is connected to a fixed with truss 9 and supporting leg 2 respectively.On the supporting leg top crossbeam 51 electrical house 11 is installed also, large vehicle walking 12 is separately positioned on supporting leg 2 bottom crossbeams 52 two-end-points, and grappling rail clamping device 13 is arranged on the supporting leg 2 bottom crossbeams 52.
The above-mentioned pair of girder 1,1 inclined-plane can also arrange except arranging in opposite directions dorsad, and as shown in Figure 5, stay bearing plate 7 is arranged on the inclined-plane 6 equally, and track 8 is arranged on the stay bearing plate 7 too, but dolly 3 is suspended on girder 1 below.Simultaneously, girder 1 is except the cross section described in the present embodiment is right-angled trapezium, and its cross section can also be other shapes.Girder 1 and supporting leg 2 not only can be box-structures, can also be truss structure, truss has the various shape structure, so the shape and structure of girder 1 and supporting leg 2 also can be diversified, as long as have enough load-carryings, but supporting leg 2 is necessary for the closed type framed structure.The combination of its girder 1 and supporting leg 2 can be box-structure and box-structure, box-structure and truss structure, truss structure and box-structure, truss structure and truss structure.
When using in the present embodiment hoisting crane, dolly 3 on the girder 1 runs to water side barge top along track 8, by jack up unit on the dolly rotating electromagnetic suspension bracket 4 is put down, produce magnetic attraction after the electromagnet energising in the rotating electromagnetic suspension bracket 4 and draw steel, lifting mechanism above the dolly rises to proper height together with rotating electromagnetic suspension bracket 4 and steel, dolly 3 run with loads are to land side cantilever or in striding, steel are unloaded down to requiring the position, rotating electromagnetic suspension bracket 4 is also rotatable in case of necessity, to adjust the steel position.In case of necessity large vehicle walking 12 actions move to water front demand position with hoisting crane.A unloading cycle mainly moves and is: electromagnet is drawn steel in the rotating electromagnetic suspension bracket 4, and load promotes, the operation of dolly load, and the electromagnetism suspension bracket descends, and electromagnet puts down steel, and zero load promotes again, and the dolly zero load is returned, and the electromagnetism suspension bracket drops to another steel position.Because the hoisting crane cardinal distance is larger, steel need not rotate directly just can pass through crane support, realizes that steel are carried to side stockyard, land by the water side, and action is succinct, transportation route is the shortest, efficient improves greatly.
L=(0.25～0.35) S in the structure of prior art universal electromagnetic transfer crane, B=(0.3～0.5) H, and the cantilever L of above-mentioned two large cardinal distance electromagnetic gantry cranes of super cantilever and the relation of span S are changed into L＞1.4S, it is large that cantilever becomes, simultaneously cardinal distance B strengthens, and the pass of high H is B 〉=1.75H at the bottom of itself and the transfer crane beam, and these two designs are unconventional, obvious with the gantry crane for general use difference, have than the hightech difficulty on its Structure Calculation and the structure design.Because the structure of large cantilever of the present invention, large cardinal distance is set up truss and intertie at girder, to satisfy the intensity and toughness requirement of hoist design specification (GB/T 3811) regulation.Because this hoisting crane cardinal distance is larger, if adopt conventional design, trolley span will be very large, and the saddle beam of joining on the girder will be very long, and crane structure is extremely inharmonious, and is stressed also bad.This hoisting crane adopts the method that hangs two girders in two rectangle supporting legs, be the two girder designs of suspension type, and girder has the right-angled trapezium cross section, satisfying under the large cardinal distance prerequisite, designed less trolley span, and cancelled the saddle beam that is not suitable for super large cardinal distance transfer crane, dolly is installed in two girders and opens crotch inside; Design concept is ingenious, and is simple for structure, stressed clear and definite.Said structure has not only changed the characteristics that gantry crane for general use can not satisfy the large cantilever loading and unloading of harbour, substituted again expensive, safety is not high, the electromagnetism span winch of inefficiency, realized harbour efficiently, cheaply steel loading and unloading solution.
Claims (5)
1. the large cardinal distance electromagnetic gantry crane of two super cantilevers has girder, and girder is supported by supporting leg, and girder is provided with stay bearing plate, is provided with track on the stay bearing plate, and the dolly setting in orbit; Dolly includes vehicle frame, vehicle frame is provided with lifting mechanism, traveling gear, and the rotating electromagnetic suspension bracket is connected on the lifting mechanism of dolly by steel rope, it is characterized in that: described girder is two girders, supporting leg is closure frame, and two girders are separately fixed at both sides, crossbeam bottom surface, supporting leg top; Be provided with truss at the girder top, be provided with intertie between truss and supporting leg, intertie is fixed together respectively at truss and supporting leg; The pass of this hoisting crane span S and kingpost cantalever L is L＞1.4S; The pass of high H is B 〉=1.75H at the bottom of cardinal distance B and the crane beam.
2. two large cardinal distance electromagnetic gantry cranes of super cantilever as described in claim 1, it is characterized in that: described supporting leg is rectangular frame.
3. two large cardinal distance electromagnetic gantry cranes of super cantilever as described in claim 1, it is characterized in that: the cross-sectional plane of described girder is right-angled trapezium, the narrow upper surface of width of main beam is connected with crossbeam bottom surface, supporting leg top.
4. two large cardinal distance electromagnetic gantry cranes of super cantilever as described in claim 3, it is characterized in that: the inclined-plane of described two girders arranges in opposite directions, and the bottom, inclined-plane of girder is provided with stay bearing plate, and stay bearing plate is provided with track, and the dolly setting is in orbit.
5. two large cardinal distance electromagnetic gantry cranes of super cantilever as described in claim 3, it is characterized in that: the inclined-plane of described two girders arranges dorsad, and the bottom, inclined-plane of girder is provided with stay bearing plate, and stay bearing plate is provided with track, and the dolly setting is in orbit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102045889A CN102887437A (en) | 2011-07-21 | 2011-07-21 | Double-super cantilever type electromagnetic gantry crane with large base distance |
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| CN2011102045889A CN102887437A (en) | 2011-07-21 | 2011-07-21 | Double-super cantilever type electromagnetic gantry crane with large base distance |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103318796A (en) * | 2013-07-22 | 2013-09-25 | 上海海事大学 | Balance weight pulley block |
| CN103342293A (en) * | 2013-07-22 | 2013-10-09 | 上海海事大学 | Potential energy type crane with energy-saving counterweight system |
| CN104724608A (en) * | 2015-02-02 | 2015-06-24 | 王卫昌 | Novel gantry crane for container |
| CN105923584A (en) * | 2016-06-16 | 2016-09-07 | 徐伟增 | Special crane for cave |
| CN113235604A (en) * | 2021-02-05 | 2021-08-10 | 中铁工程机械研究设计院有限公司 | Erection construction method of cover plate structure of prefabricated building |
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| GB1098906A (en) * | 1965-09-20 | 1968-01-10 | Nielson & Son Maskinfabrik As | A gantry crane, for box-shaped containers such as railway containers |
| DE19740814A1 (en) * | 1997-09-16 | 1999-04-01 | Hamburger Hafen Und Lagerhaus | Container bridging system used in docks |
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| CN101472816A (en) * | 2006-11-17 | 2009-07-01 | Apm终端管理有限公司 | Plant for transporting cargo to and/or from a ship |
| CN201587815U (en) * | 2009-12-24 | 2010-09-22 | 西安神力起重运输机械有限公司 | Double-main-beam multi-point hoist gantry |
| CN202220047U (en) * | 2011-07-21 | 2012-05-16 | 象王重工股份有限公司 | Double-super-cantilever large-base-distance electromagnetic portal crane |
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2011
- 2011-07-21 CN CN2011102045889A patent/CN102887437A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1098906A (en) * | 1965-09-20 | 1968-01-10 | Nielson & Son Maskinfabrik As | A gantry crane, for box-shaped containers such as railway containers |
| DE19740814A1 (en) * | 1997-09-16 | 1999-04-01 | Hamburger Hafen Und Lagerhaus | Container bridging system used in docks |
| CN2606097Y (en) * | 2003-03-26 | 2004-03-10 | 辽宁石油化工大学 | Electromagnetic crane |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103318796A (en) * | 2013-07-22 | 2013-09-25 | 上海海事大学 | Balance weight pulley block |
| CN103342293A (en) * | 2013-07-22 | 2013-10-09 | 上海海事大学 | Potential energy type crane with energy-saving counterweight system |
| CN103318796B (en) * | 2013-07-22 | 2015-12-23 | 上海海事大学 | Counterweight assembly pulley |
| CN104724608A (en) * | 2015-02-02 | 2015-06-24 | 王卫昌 | Novel gantry crane for container |
| CN105923584A (en) * | 2016-06-16 | 2016-09-07 | 徐伟增 | Special crane for cave |
| CN113235604A (en) * | 2021-02-05 | 2021-08-10 | 中铁工程机械研究设计院有限公司 | Erection construction method of cover plate structure of prefabricated building |
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Application publication date: 20130123 |