CN216038290U - Gantry crane capable of being integrally and automatically installed and dismantled - Google Patents

Abstract

The utility model discloses a portal crane capable of being integrally self-mounted and dismounted, which comprises a main beam, supporting legs, a walking wheel train and a split-type traction device. Two groups of supporting legs are respectively installed at two ends of the main beam, each supporting leg comprises two main limbs, the two main limbs are respectively located on two opposite sides of the main beam, and the top ends of the main limbs are hinged with the main beam through first hinging devices. The walking wheel train is articulated with the bottom of main limb through second articulated mounting, and the walking wheel train interval of two main limbs is located on same track. The opposite-pulling traction device is connected with the two walking wheel trains on the same rail and used for pulling the walking wheel trains to move so as to enable the two main limbs to be close to or far away from each other. The gantry crane capable of being integrally installed and dismantled can effectively reduce hoisting risks, reduce investment of the crane, improve field adaptability of gantry crane installation, and enable use of a gantry crane in special environments such as narrow areas and with a high height to be possible.

Description

Gantry crane capable of being integrally and automatically installed and dismantled

Technical Field

The utility model relates to the technical field of building construction and logistics, in particular to a gantry crane capable of being integrally self-mounted and dismounted.

Background

The space range which can be covered by the operation of the portal crane (hereinafter referred to as portal crane) is large, so that the portal crane is more and more widely applied to engineering construction and logistics transportation. However, in the using process, under the influence of site conditions and installation height, the installation and the removal of the door machine are often very difficult, and sometimes even become the decisive conditions for limiting the use of the door machine.

The conventional installation method of the main structure of the gantry crane is that the rigid supporting legs and the flexible supporting legs are hoisted and erected by a mobile crane, two sides of each supporting leg are oppositely pulled and anchored on an earth anchor by a cable rope (steel wire rope), then a main beam is hoisted in place by the mobile crane, and generally, a lifting crane is adopted. And finally hoisting the overhead travelling crane and other accessory facilities, wherein the dismantling process is opposite to the installation process. The field that door machine needs is demolishd in this kind of mode installation is wide, and the mounting height is high, and safe risk is high, and the hoist live time is long simultaneously, and the model specification of chooseing for use is great, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

Therefore, the portal crane capable of being integrally self-installed and dismantled is needed to solve the problems, hoisting risks are effectively reduced, investment of the crane is reduced, site adaptability of installation of the portal crane is improved, and the portal crane can be used in special environments such as narrow areas and the like and in high-altitude portal cranes.

A gantry crane capable of being integrally self-mounted and dismounted, comprising:

a main beam;

the two groups of supporting legs are respectively arranged at two ends of the main beam and comprise two main limbs which are respectively positioned at two opposite sides of the main beam, and the top ends of the main limbs are hinged with the main beam through a first hinging device;

the walking wheel trains are hinged with the bottom ends of the main limbs through second hinge devices, and the walking wheel trains of the two main limbs are arranged on the same track at intervals; and

to drawing draw gear, connect two on the same track the walking train, to drawing draw gear is used for the pulling the walking train removes, so that two the main limb is close to or keeps away from.

In one embodiment, the first hinge device comprises a hinge seat, a rotating sleeve and a connecting pin shaft, the hinge seat is fixed on the main beam, the rotating sleeve is fixed at the top end of the main limb, and the connecting pin shaft is rotatably connected with the hinge seat and the rotating sleeve.

In one embodiment, the rotating sleeve is provided with an ear plate, the ear plate is provided with a pin hole, the connecting pin shaft is rotatably arranged in the pin hole in a penetrating way, and the connecting pin shaft is fixed on the hinge seat.

In one embodiment, the ear plate and the rotating sleeve are integrally formed into an L shape.

In one embodiment, the second hinge device comprises a first connecting plate mounted at the bottom end of the main limb, a second connecting plate mounted on the road train, and a rotating shaft rotatably connecting the first connecting plate and the second connecting plate.

In one embodiment, the two sets of legs are rigid legs and flexible legs, respectively.

In one embodiment, the rigid leg further comprises two secondary limbs, the two secondary limbs are respectively located on two opposite sides of the main beam, the top ends of the secondary limbs are hinged to the main beam through the first hinge device, and the secondary limbs and the main limbs located on the same side of the main beam are connected through a cross rod.

In one embodiment, the landing leg further comprises a middle cross beam and a bottom cross beam, the middle cross beam is detachably connected to the middle parts of the two main limbs of the same landing leg, and the bottom cross beam is detachably connected to the bottom ends of the two main limbs of the same landing leg.

In one embodiment, the counter-pulling traction device comprises a continuous jack and a steel strand, the continuous jack is installed on one of the travelling wheel trains on the same rail, one end of the steel strand is connected with the continuous jack, and the other end of the steel strand is connected with the other travelling wheel train on the same rail through an anchor.

In one of them embodiment, still include overhead traveling crane, lifting hook and electric block, the overhead traveling crane install in the top of girder, the lifting hook pass through wire rope with the overhead traveling crane is connected, electric block slidable install in on the girder.

Above-mentioned but whole portal crane who installs and demolish, during the installation hoist, can accomplish the whole assembly of hoist on ground, then draw gear pulling walking train to draw close, the main limb is closed and is realized whole jacking. When the crane is dismantled, the opposite-pulling traction device is loosened, the walking wheels are kept away from each other under the action of the dead weight of the crane, the main limbs are opened to realize integral transfer, and the disassembly of the gantry crane is realized on the ground. The gantry crane capable of being integrally installed and dismantled can effectively reduce hoisting risks, reduce investment of the crane, improve field adaptability of gantry crane installation, and enable use of a gantry crane in special environments such as narrow areas and with a high height to be possible.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

FIG. 1 is a schematic structural view of a gantry crane that is integrally self-installable and removable in one embodiment;

FIG. 2 is a side view of the gantry crane shown in FIG. 1, which is entirely self-installing and removing;

FIG. 3 is a schematic view of the rigid leg of FIG. 1 articulated to the main beam;

FIG. 4 is a schematic view of the first hinge assembly of FIG. 3;

FIG. 5 is a schematic view of the flexible leg of FIG. 1 articulated to the main beam;

FIG. 6 is a schematic view of the articulated structure of the main limb and the traveling gear train of FIG. 1;

FIG. 7 is a schematic view of a mechanism of FIG. 1, in which a main beam is assembled on a temporary support;

FIG. 8 is a schematic view of the leg of FIG. 1 mounted to a main beam;

FIG. 9 is a schematic view of an embodiment of a counter-pulling traction device coupled to two sets of traveling gears;

FIG. 10 is a schematic view of the counter-pulling traction device of FIG. 9 pulling the legs together to lift the main beam;

FIG. 11 is a schematic structural view of the support legs jacking the main beam into position;

FIG. 12 is a schematic view of the structure for mounting the bottom and middle cross members on the legs.

Reference numerals:

10-main beam, 12-overhead crane, 14-hook, 16-electric hoist, 20-support leg, 210-main limb, 220-first hinging device, 222-hinging seat, 224-rotating sleeve, 226-connecting pin shaft, 228-lug plate, 230-auxiliary limb, 240-cross bar, 250-middle cross beam, 260-bottom cross beam, 30-walking wheel train, 310-second hinging device, 312-first connecting plate, 314-second connecting plate, 316-rotating shaft, 40-opposite-pulling traction device, 410-continuous jack, 420-steel strand, 50-rail and 60-temporary support.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather construed as embodying the utility model in accordance with the principles of the utility model.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1 and 9, in one embodiment, the gantry crane capable of being integrally self-mounted and dismounted includes a main beam 10, support legs 20, a traveling wheel system 30 and a counter-pulling traction device 40.

Referring to fig. 1 and 2, the main beam 10 can be assembled or disassembled on the ground, the number of the legs 20 is two, and the two sets of legs 20 are respectively installed at two ends of the main beam 10. Each leg 20 includes two main limbs 210, the two main limbs 210 are oppositely arranged, the two main limbs 210 are respectively located at two opposite sides of the main beam 10, and the top end of the main limb 210 is hinged with the main beam 10 through a first hinge device 220.

Referring to fig. 3 to 5, in one embodiment, the first hinge assembly 220 includes a hinge base 222, a rotating sleeve 224 and a connecting pin 226, the hinge base 222 is fixed on the main beam 10, the rotating sleeve 224 is fixed on the top end of the main limb 210, and the connecting pin 226 rotatably connects the hinge base 222 and the rotating sleeve 224. Specifically, the hinge mount 222 is welded to the main beam 10 and the swivel housing 224 is welded to the top of the main limb 210. The connecting pin 226 is fixed on the hinge seat 222, the rotating sleeve 224 is provided with the ear plate 28, the ear plate 28 is provided with a pin hole, and the connecting pin 226 rotatably penetrates through the pin hole to realize the hinge connection between the rotating sleeve 224 and the hinge seat 222.

On the basis of the above embodiment, further, the ear plate 28 and the rotating sleeve 224 are integrally formed into an L shape, so as to ensure that the main limb 210 has a sufficient rotation angle with respect to the main beam 10, and ensure the smoothness of the overall lifting or lowering action of the main beam 10.

In one embodiment, the two sets of legs 20 are a rigid leg and a flexible leg, the rigid leg further includes two secondary limbs 230, the two secondary limbs 230 are respectively located at two opposite sides of the main beam 10, the two secondary limbs 230 are disposed corresponding to the two main limbs 210, and the flexible leg includes only the two main limbs 210. The top end of the secondary limb 230 is hinged to the main beam 10 by a first hinge means 220, and the secondary limb 230 and the main limb 210 on the same side of the main beam 10 are connected by a cross bar 240.

On the basis of the above embodiment, further, the rotating sleeve 224 of the first hinge device 220 is fixed on the top end of the secondary limb 230, so that the secondary limb 230 is hinged with the main beam 10 through the first hinge device 220. The bottom end of the secondary limb 230 is hinged to the bottom end of the main limb 210, the cross bar 240 is hinged to the secondary limb 230 and the main limb 210, the secondary limb 230 can have a margin of moving up and down relative to the main limb 210, and the phenomenon that the secondary limb 230 cannot be hinged to the main beam 10 due to tolerance is avoided.

Referring again to fig. 2, in one embodiment, the leg support 20 further includes a middle cross member 250 and a bottom cross member 260, wherein the middle cross member 250 is connected to the middle of the two main limbs 210 of the same leg support 20, and the middle cross member 250 is detachably connected to the main limbs 210. The bottom cross member 260 is attached to the bottom of the associated main limb 210 of the same leg 20, and the bottom cross member 260 is removably attached to the bottom of the main limb 210. Specifically, after the main limb 210 rotates to lift the main beam 10 in place, the connecting bolt of the main limb 210 and the main beam 10 is installed, so as to realize the fixed connection between the support leg 20 and the main beam 10. The bottom and middle cross members 260, 250 are then installed to connect the entire leg 20 as a unit to prevent relative rotation of the two main limbs 210.

In one embodiment, each of the primary limb 210 and the secondary limb 230 is formed by splicing a plurality of segments, and adjacent two segments are connected by flanges and fastened by bolting. The main limb 210 and the secondary limb 230 are formed from a plurality of segments that facilitate handling, transport, and installation of the main limb 210 and the secondary limb 230.

In the present embodiment, only the combination of the rigid and flexible legs 20 is illustrated, and the same applies to the combination of the rigid legs 20. The structural form of the leg 20 is not limited to a truss type, and includes a box girder type.

Referring to fig. 6, the traveling wheel system 30 is hinged to the bottom end of the main limbs 210 by the second hinge device 310, and the traveling wheel systems 30 of the two main limbs 210 are alternately arranged on the same track 50. The track 50 is perpendicular to the length direction of the main beam 10, the two walking wheel trains 30 of the two main limbs 210 are arranged on the track 50 at intervals, and the two main limbs 210 can be opened or closed by the movement of the walking wheel trains 30 on the track 50.

In one embodiment, the second hinge assembly 310 includes a first connecting plate 312, a second connecting plate 314 and a rotating shaft 316, the first connecting plate 312 is mounted at the bottom end of the main limb 210, the second connecting plate 314 is mounted on the traveling gear train 30, and the rotating shaft 316 rotatably connects the first connecting plate 312 and the second connecting plate 314, so as to realize the hinge connection between the bottom end of the main limb 210 and the traveling gear train 30.

Referring to fig. 9, the counter-pulling traction device 40 is connected to two traveling gear trains 30 on the same rail 50, and the counter-pulling traction device 40 is used for pulling the traveling gear trains 30 to move, so that the two main limbs 210 are close to each other to lift up the main girder 10. In one embodiment, the counter-pulling traction device 40 includes a continuous jack 410 and a steel strand 420, the continuous jack 410 is mounted on one of the traveling gear trains 30 on the same rail 50, one end of the steel strand 420 is connected with the continuous jack 410, and the other end of the steel strand 420 is connected with the other traveling gear train 30 on the same rail 50. The continuous jack 410 can slowly contract the steel strand 420, so that the two traveling gear trains 30 are close to each other.

It is understood that in other embodiments, the counter-pulling traction device 40 may also be a prestressed reinforcement or a winch, tackle pulley, etc., as long as it can pull the two travel trains 30 closer to each other.

Referring to fig. 1 again, in one embodiment, the gantry crane capable of being integrally self-mounted and dismounted further includes a crown block 12, a hook 14 and an electric hoist 16, the crown block 12 is mounted on the top of the main beam 10, the hook 14 is connected with the crown block 12 through a steel wire rope, and the electric hoist 16 is slidably mounted on the main beam 10.

The installation and dismantling process of the whole self-installed and dismantled portal crane specifically comprises the following steps:

referring to fig. 7, the installation process of the gantry crane capable of being integrally self-installed and dismantled includes: the rails 50 are installed on the ground, and then the temporary support 60 is installed between the two rails 50, wherein the height of the temporary support 60 is ensured to ensure that the main limb 210 has a certain inclination angle when the support legs 20 are installed. The main beam 10 is assembled above the temporary support 60, and care should be taken when assembling, so that the connecting flanges of the main beam 10 and the supporting legs 20 are opposite to the vertical direction of the track 50.

Then hoisting the crown block 12 and completing the wire rope winding between the crown block 12 and the hook 14. And (3) installing the electric hoist 16, assembling auxiliary facilities such as guardrails and cable brackets and the like, and temporarily fixing the crown block 12 and the electric hoist 16 on respective slide rails.

Referring to fig. 8, a traveling wheel system 30 is installed on a rail 50 and temporarily fixed on the rail 50 to prevent falling. The main limb 210 of the leg 20 is mounted, the bottom of the main limb 210 is articulated with the walking train 30 by the second articulation 310, and the main limb 210 hears to be articulated with the main beam 10 by the first articulation 220.

Referring to fig. 9 and 10, the opposite pulling device 40 is installed between the traveling gear trains 30 of the same leg 20, and then the continuous jack 410 is started to slowly contract the steel strand 420, and the two traveling gear trains 30 are pulled oppositely, so that the two traveling gear trains 30 gradually get closer together, and the main beam 10 rises accordingly. The jacking process comprises the step that the jacking speeds of the rigid supporting legs 20 and the flexible supporting legs 20 are basically synchronous, so that the main beam 10 is prevented from being unstable due to a large transverse inclination angle caused by different jacking speeds.

Referring to fig. 11 and 12, after the legs 20 of the gantry crane are lifted to the proper position, the connecting bolts between the legs 20 and the main beam 10 are installed, the upper bottom cross beam 260 and the middle cross beam 250 of the legs 20 are installed, and after the connecting bolts between the legs 20 and the main beam 10 and between the main push beam and the main cross beam are all threaded, all the connecting bolts are tightened. The opposite-pulling traction device 40 is removed, and other components such as an operation room are installed by using a lifting mechanism of the portal crane, so that the installation is completed.

The dismantling process of the gantry crane capable of being integrally self-installed and dismantled is as follows: the counter-pulling traction device 40 is installed and tensioned moderately and stressed slightly, and the bottom cross beam 260 and the middle cross beam 250 are removed.

The continuous jack 410 is started, the steel strand 420 is slowly loosened, the two sets of walking wheel trains 30 are gradually far away along the track 50 under the action of the dead weight of the portal crane, and the main beam 10 is lower. The jacking speeds of the rigid supporting legs 20 and the flexible supporting legs 20 are kept basically synchronous in the lowering process, and the main cross beam is prevented from generating a large inclination angle and being unstable due to different lowering speeds.

A temporary support 60 is arranged below the main beam 10, and the whole portal crane is lowered until the main beam 10 is completely contacted with the temporary support 60. The gravity of the gantry crane superstructure is transferred to the temporary support 60, allowing the counter-pull traction device 40 to relax completely. The counter-pulling traction device 40 is dismantled and all the components of the gantry crane are dismantled on the ground.

The above-mentioned but whole self-installation demolishs's gantry crane then through to drawing draw gear 40, realizes whole jacking or transferring, and this kind of method can effectively reduce the hoist and mount risk, reduces the input of hoist, improves the place adaptability of gantry crane installation, lets under special environment such as narrow area and highly higher use of gantry crane become possible.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims (10)

1. A gantry crane capable of being integrally disassembled from installation is characterized by comprising:

a main beam;

the two groups of supporting legs are respectively arranged at two ends of the main beam and comprise two main limbs which are respectively positioned at two opposite sides of the main beam, and the top ends of the main limbs are hinged with the main beam through a first hinging device;

the walking wheel trains are hinged with the bottom ends of the main limbs through second hinge devices, and the walking wheel trains of the two main limbs are arranged on the same track at intervals; and

to drawing draw gear, connect two on the same track the walking train, to drawing draw gear is used for the pulling the walking train removes, so that two the main limb is close to or keeps away from.

2. The gantry crane capable of being integrally self-assembled and disassembled according to claim 1, wherein the first hinge device comprises a hinge seat, a rotating sleeve and a connecting pin shaft, the hinge seat is fixed on the main beam, the rotating sleeve is fixed at the top end of the main limb, and the connecting pin shaft is rotatably connected with the hinge seat and the rotating sleeve.

3. The gantry crane capable of being integrally self-assembled and disassembled according to claim 2, wherein the rotating sleeve is provided with an ear plate, the ear plate is provided with a pin hole, the connecting pin shaft is rotatably arranged in the pin hole in a penetrating way, and the connecting pin shaft is fixed on the hinge seat.

4. The gantry crane with integral self-assembly and disassembly according to claim 3, wherein the ear plate and the rotating sleeve are integrally formed in an L shape.

5. The gantry crane according to claim 1, wherein the second hinge device comprises a first connecting plate, a second connecting plate and a rotating shaft, the first connecting plate is mounted at the bottom end of the main limb, the second connecting plate is mounted on the traveling gear, and the rotating shaft is rotatably connected with the first connecting plate and the second connecting plate.

6. The entirely self-assembling and disassembling portal crane according to claim 1, wherein the two sets of legs are a rigid leg and a flexible leg, respectively.

7. The gantry crane according to claim 6, wherein the rigid leg further comprises two secondary limbs, the two secondary limbs are respectively located at two opposite sides of the main beam, the top ends of the secondary limbs are hinged to the main beam through the first hinge device, and the secondary limbs and the main limb located at the same side of the main beam are connected through a cross bar.

8. The gantry crane with integral self-assembly and disassembly according to claim 1, wherein the supporting legs further comprise a middle cross beam and a bottom cross beam, the middle cross beam is detachably connected to the middle parts of the two main limbs of the same supporting leg, and the bottom cross beam is detachably connected to the bottom ends of the two main limbs of the same supporting leg.

9. The gantry crane capable of being integrally self-assembled and disassembled according to claim 1, wherein the counter-pulling traction device comprises a continuous jack and a steel strand, the continuous jack is installed on one of the travelling wheel trains on the same track, one end of the steel strand is connected with the continuous jack, and the other end of the steel strand is connected with the other travelling wheel train on the same track through an anchor.

10. The gantry crane capable of being integrally self-assembled and disassembled according to claim 1, further comprising a crown block, a hook and an electric hoist, wherein the crown block is installed on the top of the main beam, the hook is connected with the crown block through a steel wire rope, and the electric hoist is slidably installed on the main beam.

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