CN222961023U - Flat-head shore bridge - Google Patents
Flat-head shore bridge Download PDFInfo
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- CN222961023U CN222961023U CN202422115775.5U CN202422115775U CN222961023U CN 222961023 U CN222961023 U CN 222961023U CN 202422115775 U CN202422115775 U CN 202422115775U CN 222961023 U CN222961023 U CN 222961023U
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Abstract
The utility model discloses a flat-head quay bridge which comprises a girder, a sea side upper beam, a land side upper beam, a door frame structure, a machine room and a trolley system, wherein the sea side upper beam and the land side upper beam are arranged on the door frame structure, the girder is arranged on the sea side upper beam and the land side upper beam, the trolley system is arranged on the girder, and the machine room is arranged on the land side upper beam and is used for driving the trolley system, and the girder adopts a truss structure. Aiming at the characteristics of short front extension distance, small lifting height, relatively low working level and the like of the inner river bank bridge, the utility model realizes the lightweight design of the inner river bank bridge through the flat-head bank bridge.
Description
Technical Field
The present utility model relates to port quay equipment, and more particularly to a flat head quay.
Background
The quay container crane (hereinafter referred to as quay crane) is used for loading and unloading containers, and mainly comprises a metal structure, a trolley, a lifting appliance, a lifting mechanism, a trolley and a cart running mechanism and other accessories. The girder is connected under the upper cross beam by welding, the sea side extends to the upper part of the cargo ship cabin (called a front girder), and the land side extends to the upper part of the truck collecting lane outside the door frame (called a rear girder). The trolley is hung on the rail of the girder through wheels and can move along the rail, and the loading and unloading operation of the container is realized through the connection of the steel wire rope system and the lifting appliance.
The conventional coastal bridge has longer sea side extension distance (usually above 63-65 meters), the rated lifting weight of the container is usually 65t, and the container is even heavier, so as to reduce the deformation of a girder when a trolley lifts the container and improve the rigidity of the whole machine, a ladder frame is arranged at the upper part of an upper cross beam, and a pull rod is led out from the top of the ladder frame to pull the overhanging part of the girder. And a pull rod is also led out from the top end of the ladder frame for the rear girder to pull the overhanging part of the rear girder. The front and rear tie rods, the ladder frame and the like are called as an upper structure, and the upper structure improves the stress of the front and rear girders and is an effective method for solving the problem that the front and rear girders deform greatly (or the required design size is large) under the condition of a cantilever.
For the girder construction, there are mainly two boxes Liang Xingshi, a single box girder type, and a truss girder. The double boxes Liang Xingshi are larger in bearing, relatively low in manufacturing process and relatively simple in trolley design. The truss girder has light structure, low wind load in working state and high requirement on the manufacturing process. The single-box girder shore bridge structure is larger in bearing and simpler in manufacturing process, but the trolley is more complex than a double-box girder type shore bridge.
The shore bridge trolley system comprises a traction type trolley (a driving mechanism and a lifting mechanism are arranged in a machine room above a door frame), a self-propelled trolley (the driving mechanism is arranged on the trolley and the lifting mechanism is arranged in the machine room above the door frame), and a load-carrying trolley (the driving mechanism and the lifting mechanism are arranged on the trolley). Wherein, the traction type trolley has the lightest structure, and the self-propelled trolley has the greatest weight because the driving mechanism and the lifting mechanism are arranged on the trolley. However, the traction type trolley is provided with the driving mechanism and the lifting mechanism in the machine room, so that the consumption of the steel wire rope is maximum, compared with the traction type trolley, the self-propelled trolley is provided with a traction steel wire rope system, and the heavy trolley is provided with the traction steel wire rope system, and the lifting mechanism is arranged on the trolley, so that the consumption of the lifting steel wire rope is minimum.
The above are some cases of conventional quays, and in recent years, along with the development of inland docks, some quays suitable for inland loading and unloading have been developed. Because inland ships are relatively narrow, the forward extension distance of the shore bridge is small, usually within 20-30 meters, the lifting height of the inland shore bridge is small, and the working level is low. For this reason, inland quay bridges are considerably smaller in size than conventional quays, but their overall structural composition is still comparable to that of conventional quays.
Aiming at the inner river bank bridge, the adoption of the structure form of a flat head type complete machine is a lightweight design idea. Similar construction types are mainly found in the field of tower cranes, such as a flat-head tower crane at home and abroad reported by Jin Zhiyong in construction mechanization (2007.10), and a flat-head tower crane development and characteristics overview (Yang Daohua, xu Shudong) in a Chinese society of engineering and mechanical industries construction new technology communication discussion (on-line publication date: 2010-06-28 universal platform). However, the structure of the leveling head type complete machine is not applied to the field of port cranes at present.
Disclosure of utility model
Aiming at the defects of the prior art in the lightweight design of the inner river bank bridge, the utility model aims to provide the flat-head bank bridge, and the lightweight design of the inner river bank bridge is realized through the flat-head bank bridge aiming at the characteristics of short front extension distance, small lifting height, relatively low working level and the like of the inner river bank bridge.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
A flat-head quay bridge comprises a girder, a sea side upper beam, a land side upper beam, a door frame structure, a machine room and a trolley system;
The sea side upper cross beam and the land side upper cross beam are arranged on the door frame structure;
the girder is arranged on the sea side upper cross beam and the land side upper cross beam;
The trolley system is arranged on the girder;
the machine room is arranged on the land side upper cross beam and used for driving the trolley system;
the girder adopts a truss structure.
Preferably, the truss structure adopts an unequal-height structure or an equal-height structure.
Preferably, the unequal-height structure adopts an unequal-height integral welding girder or an unequal-height multi-section hinged girder.
Preferably, the non-equal-height integral welding girder comprises:
the height of the non-equal-height integral welding girder, which is close to the middle position, is larger than the height of the non-equal-height integral welding girder, which is close to the end position.
Preferably, the unequal-height multi-section hinged girder comprises a standard section and a middle section;
The standard sections are provided with a plurality of standard sections, the height settings are the same, and the standard sections are arranged on the unequal-height multi-section hinged girder at positions close to the end parts;
the middle sections are provided with a plurality of gradually-changed heights, and are arranged on the unequal-height multi-section hinged girder and close to the middle position;
And the standard joint is hinged with the standard joint, the middle joint is hinged with the middle joint, and the standard joint is hinged with the middle joint.
Preferably, the equal-height structure adopts equal-height integral welding type girder or equal-height multi-section hinged girder.
Preferably, the equal-height multi-section hinged girder comprises a plurality of standard sections which are connected in sequence;
and the standard joint is hinged with the standard joint.
Preferably, the trolley system comprises a trolley, a lifting appliance and a steel wire rope winding mechanism;
The trolley is connected with the lifting appliance through the steel wire rope winding mechanism;
Wheels on the trolley are arranged on the lower chord member of the girder.
Preferably, the sea side upper cross beam and the land side upper cross beam are connected with the straight web members of the girder through girder fixing rods.
Preferably, a cart is arranged at the bottom of the door frame structure.
The flat-head quay bridge provided by the utility model simplifies the structure and structural stress of the traditional quay bridge, converts the stress of the front girder into a single cantilever Liang Moxing, and when the front girder of the trolley moves, the girder cannot be bent reversely, and the stress on the girder is changed from traditional alternating stress into only pulsating stress, so that the stress of the structure is improved, and the fatigue performance of the structure is improved.
Drawings
FIG. 1 is a schematic front view of a flat head quay bridge of the present utility model;
FIG. 2 is a schematic side view of the flat head quay bridge of the present utility model;
FIG. 3 is a schematic illustration of the connection of a door frame structure to a girder in a flat head quay bridge according to the present utility model;
FIG. 4 is a schematic illustration of the connection of a trolley system to a girder in a flat head quay bridge according to the present utility model;
FIG. 5 is a schematic illustration of a girder of the flat-head quay bridge of the present utility model employing non-equal height integrally welded girders;
FIG. 6 is a schematic illustration of a girder of a flat-head quay bridge of the present utility model employing multi-segment articulated girders of unequal heights;
FIG. 7 is a schematic illustration of a girder of the flat-head quay bridge of the present utility model employing a contour integrally welded girder;
fig. 8 is a schematic view of a girder of a flat-head quay bridge according to the present utility model using equal-height multi-section articulated girders.
Detailed Description
In order to better understand the above technical solution of the present utility model, the technical solution of the present utility model is further described below with reference to the accompanying drawings and examples.
Referring to fig. 1, the flat-head quay bridge provided by the utility model comprises a girder 1, a sea side upper beam 2, a land side upper beam 3, a door frame structure 4, a machine room 5 and a trolley system 8.
The sea side upper beam 2 and the land side upper beam 3 are both mounted on the door frame structure 4.
The girder 1 is suspended and fixed on the sea side upper beam 2 and the land side upper beam 3.
The trolley system 8 is mounted on the girder 1.
The machine room 5 is installed on the land side upper beam 3, and is used for driving the trolley system 8 to move on the girder 1 and lifting and descending actions of the lifting appliance 13 by winding and unwinding the steel wire rope. The container is loaded and unloaded by combining the grabbing and releasing actions of the lifting appliance 13 on the container.
The bottom of the door frame structure 4 is provided with a cart 6.
Referring to fig. 2 and 3, the sea side upper beam 2 and the land side upper beam 4 are connected with the upper chord 9 of the girder in a specific connection manner by arranging an ear plate on the sea side upper beam 2 and the land side upper beam 4 and being hinged with an ear plate arranged on the upper chord 9, and also by welding the two through the ear plate. To further fix the girder 1 against lateral torsion, the sea side upper cross member 2 and the land side upper cross member 3 are respectively connected and fixed with the straight web member 11 between the lower chords 10 of the girder 1 by the girder fixing rods 7.
Referring to fig. 4, the trolley system 8 includes a trolley 12, a hoist 13, and a wire rope winding mechanism 14, wherein the trolley 12 is connected to the hoist 13 via the wire rope winding mechanism 14, and the hoist 13 is lifted by winding and unwinding the wire rope. The trolley 12 is hung on the lower chord member 10 of the girder 1 through wheels, and the lower chord member 10 directly supports the wheels or supports the wheels after welding square steel rails on the upper surface, so that the travelling function of the trolley 12 along the girder 1 is realized. The loading and unloading operation of the container is completed by the travelling of the trolley 12 along the girder 1 direction and the lifting of the lifting appliance 13.
The trolley system 8 adopts traction type (a driving mechanism and a lifting mechanism are both arranged in the machine room 5), a traction rope is led out from the machine room 5 arranged on the land side upper beam 2, the operation of the trolley system 8 and the hoisting operation of the container are realized by winding and unwinding the steel wire rope, and the traction type trolley is relatively light, so that the whole machine is further light. The trolley system 8 may also be self-propelled (with the drive mechanism on the trolley 12 and the hoist mechanism in the machine room 5), or load-carrying (with both the drive mechanism and hoist mechanism on the trolley 12), if such is desired to reduce wire rope usage or simplify the wire rope system.
The girder 1 adopts a truss structure with a triangular section, and can also adopt a truss form with a rectangular or trapezoid section. When the lower chord member 10 of the girder 1 adopts a rectangular pipe or a circular pipe, the rectangular pipe can be directly used as a track, or square steel can be directly welded on the rectangular pipe as a track to further improve the bearing capacity, and when the lower chord member 10 adopts a circular pipe, the track and the rail bearing beam are paved on the circular pipe (the rail can be realized by referring to the track paving technology of a truss circular pipe truss structure in the existing port machine industry).
The truss structure may take an unequal height configuration or an equal height configuration.
The unequal-height structure is specifically designed in such a way that the truss heights of all sections of the girder 1 are designed differently according to the total overhanging length and the positions of the girder. The girder extending from the sea side door frame to the sea side has larger truss height at the door frame part, the most-extending far-end truss height is smaller, and the middle section is connected by adopting the truss with variable height. The girder extending from the land side door frame to the land side can adopt truss with uniform height or truss with variable height due to small total extending size.
The girder 1 can be provided with different girder heights in the length direction, but the lower chords 10 are always at the same height to ensure smooth operation of the trolley system 8, and the height of the girder 1 is realized by adjusting the height of the upper chords 9. The girder 1 may also be provided in the form of a cross-section of equal height. When the height of the girder 1 is differently set according to the position, the principle is that the most far-end height of the front girder (the part of the girder extending from the door frame to the sea side) is minimum, the height of the front girder is maximum near the door frame, and the middle section is transited by adopting the linear change of the girder height.
The unequal-height structure can adopt unequal-height integral welding type girder or unequal-height multi-section hinged girder.
As shown in connection with fig. 5, the unequal height integrally welded girder includes:
The height of the integral welding girder with unequal heights, which is close to the middle position, is larger than the height of the integral welding girder with unequal heights, which is close to the end position.
As shown in connection with fig. 6, the unequal-height multi-section articulated girder comprises a standard section 15 and an intermediate section 16.
The standard knot 15 has a plurality of, and the height setting is the same, is located the multistage articulated girder of inequality and is close to the tip position.
The intermediate section 16 also has a plurality of sections with progressively varying heights positioned near the intermediate position on the unequal height multi-section articulated girder.
The standard joint 15 and the standard joint 15, the middle joint 16 and the standard joint 15 and the middle joint 16 are hinged by adopting an upper hinge point 17 and a lower hinge point 18.
The contour structure may be a contour integral welded girder 21 (as shown in fig. 7) or a contour multi-section hinged girder.
As shown in connection with fig. 8, the equal-height multi-section articulated girder includes a plurality of standard sections 22 connected in sequence.
The standard joint 22 is hinged with the standard joint 22 by adopting an upper hinge point and a lower hinge point.
The standard section 15 or the standard section 22 adopted on the girder 1 can adopt standard sections 15/standard sections 22 with equal-height sections on two sides, and the whole length of the girder 1 can be quickly adjusted by increasing or decreasing the number of the standard sections 15/standard sections 22.
The standard knot 15/standard knot 22 can be sized in two or more ways to facilitate insertion at different locations on the girder 1. The length of the girder 1 can be increased by inserting the standard knot 15/standard knot 22 or increasing the number of the standard knot 15/standard knot 22, and the length of the girder 1 can be shortened by removing the standard knot 15/standard knot 22 or reducing the number of the standard knot 15/standard knot 22. The length of the girder 1 is adjusted, so that the adaptability of the flat-head quay bridge on the wharf is improved.
The pull rod structure of the conventional shore bridge plays a role in pulling the cantilever section girder, when the trolley system moves on the front girder (the part of the girder extending from the door frame structure to the sea side), stress models of the girder at the sections of the inner side of the pull rod and the outer side of the pull rod are simply supported girders and cantilevers Liang Moxing respectively, and the girder is reversely bent along the hinge point of the pull rod along with the passing of the trolley through the hinge point of the pull rod, so that alternating stress on the girder is caused. The flat-head quay bridge converts the stress of the front girder into the single cantilever Liang Moxing, the girder 1 cannot be bent reversely when the trolley system 8 moves on the girder 1, and the stress on the girder 1 is changed from the traditional alternating stress into the pulsating stress, so that the stress of the structure is improved, and the fatigue performance of the structure is improved.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the utility model, and that variations and modifications of the above described embodiments are intended to fall within the scope of the claims of the utility model as long as they fall within the true spirit of the utility model.
Claims (10)
1. The flat-head quay bridge is characterized by comprising a girder, a sea side upper beam, a land side upper beam, a door frame structure, a machine room and a trolley system;
The sea side upper cross beam and the land side upper cross beam are arranged on the door frame structure;
the girder is arranged on the sea side upper cross beam and the land side upper cross beam;
The trolley system is arranged on the girder;
the machine room is arranged on the land side upper cross beam and used for driving the trolley system;
the girder adopts a truss structure.
2. The flat-head quay bridge according to claim 1, wherein the truss structure adopts an unequal-height structure or an equal-height structure.
3. The flat-head quay bridge according to claim 2, wherein the unequal-height structure is an unequal-height integrally welded girder or an unequal-height multi-section hinged girder.
4. A quay bridge according to claim 3, wherein the non-equal height integrally welded girders comprise:
the height of the non-equal-height integral welding girder, which is close to the middle position, is larger than the height of the non-equal-height integral welding girder, which is close to the end position.
5. The flat-head quay bridge according to claim 3, wherein said unequal-height multi-section articulated girder comprises a standard section and a middle section;
The standard sections are provided with a plurality of standard sections, the height settings are the same, and the standard sections are arranged on the unequal-height multi-section hinged girder at positions close to the end parts;
the middle sections are provided with a plurality of gradually-changed heights, and are arranged on the unequal-height multi-section hinged girder and close to the middle position;
And the standard joint is hinged with the standard joint, the middle joint is hinged with the middle joint, and the standard joint is hinged with the middle joint.
6. The flat-head quay bridge according to claim 2, wherein the contour structure is a contour integral welding girder or a contour multi-section hinged girder.
7. The flat-head quay bridge according to claim 6, wherein the equal-height multi-section hinged girder comprises a plurality of standard sections connected in sequence;
and the standard joint is hinged with the standard joint.
8. The flat head quay bridge according to claim 1, wherein the trolley system comprises a trolley, a sling and a wire rope winding mechanism;
The trolley is connected with the lifting appliance through the steel wire rope winding mechanism;
Wheels on the trolley are arranged on the lower chord member of the girder.
9. The flat-head quay bridge according to claim 1, wherein the sea side upper cross beam and the land side upper cross beam are connected with the straight web members of the girder through girder fixing rods.
10. The flat-head quay bridge according to claim 1, wherein a cart is arranged at the bottom of the door frame structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422115775.5U CN222961023U (en) | 2024-08-30 | 2024-08-30 | Flat-head shore bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422115775.5U CN222961023U (en) | 2024-08-30 | 2024-08-30 | Flat-head shore bridge |
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| Publication Number | Publication Date |
|---|---|
| CN222961023U true CN222961023U (en) | 2025-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422115775.5U Active CN222961023U (en) | 2024-08-30 | 2024-08-30 | Flat-head shore bridge |
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| CN (1) | CN222961023U (en) |
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