CN217419345U - Bridge girder erection machine for U-shaped beam - Google Patents

Abstract

The utility model discloses a frame bridge crane for U type roof beam, include: girder system, landing leg system, overhead traveling crane system, the landing leg system includes first landing leg, second landing leg, third landing leg and fourth landing leg, first landing leg the second landing leg with the third landing leg interval distribution is in proper order the girder lower extreme, just first landing leg is located the front end of girder, the fourth landing leg is located on the rear end face of girder. According to the utility model discloses a frame bridge crane for U type roof beam can adapt to less curved U type roof beam, avoids crowded road that accounts for simultaneously.

Description

Bridge girder erection machine for U-shaped beam

Technical Field

The utility model relates to a bridge construction technical field, in particular to a bridge girder erection machine for U type roof beam.

Background

In urban road construction, land acquisition and occupation of the existing road affect construction cost and citizen travel. The method reduces land acquisition and occupation of the existing roads in the city, reduces cost, facilitates travel of citizens, and is a target continuously pursued by urban road construction.

In order to reduce the occupation of the existing roads in cities and facilitate the traveling of citizens, equipment for reducing land acquisition, reducing the occupation of the existing roads and meeting the construction requirements is needed; meanwhile, due to the special condition of the engineering position, the construction ground or the surrounding environment limits, the bridge installation cannot be carried out by adopting ground transportation and proper hoisting equipment, and the equipment is required to finish the U-shaped beam erection in the range which is not limited by the ground transportation and the lower space.

The conventional U-beam is transported by a ground trailer and installed on site by a truck crane or a crawler crane, and the requirements cannot be met.

Chinese patent CN102367651A discloses a U-shaped concrete beam bridge girder erection machine, which has a three-leg structure. However, the bridging machine is only suitable for the U-shaped beam with a larger line curve, and the U-shaped beam with a smaller line curve still has a plurality of limitations.

Disclosure of Invention

The utility model aims at providing a bridging machine for U type roof beam solves the unable problem that is suitable for the less U type roof beam of circuit curve of current bridging machine.

In order to solve the technical problem, the utility model discloses the technical scheme who takes does:

a bridge girder erection machine for U-shaped girders, comprising: girder system, landing leg system, overhead traveling crane system.

The landing leg system, the landing leg system includes first landing leg, second landing leg, third landing leg and fourth landing leg, first landing leg the second landing leg with the third landing leg interval distribution is in proper order the girder lower extreme, just first landing leg is located the front end of girder, the fourth landing leg is located on the rear end face of girder.

In some embodiments, the main beam system comprises two main beams distributed at intervals, the main beams are truss structures with a cross section in an A shape, the main beams are divided into a plurality of sections, the sections are connected through pin shafts, and the upper chord of each main beam is provided with a longitudinal movement track for the movement of a crown block.

In some embodiments, the first leg is provided with a first cross beam, the first cross beam is divided into an upper layer and a lower layer, the upper layer cross beam is connected with the main beam, the lower layer cross beam is rotatably connected with the upper layer cross beam, two ends of the lower layer cross beam are hinged with a first sleeve column, and the sleeve column is provided with a first jacking oil cylinder for driving the first sleeve column to perform telescopic motion.

In some embodiments, the second support leg is supported at the lower chord of the two main beams through a carrier roller wheel box, the two carrier roller wheel boxes are connected through a universal joint, the lower end of the carrier roller wheel box is connected with a rotary disc, the rotary disc is used for adjusting the included angle between the second support leg and the main beams, the lower end of the rotary disc is provided with a second jacking cylinder and a second sleeve column, the lower end of the second sleeve column is provided with a transverse moving disc and a second cross beam, the transverse moving disc is provided with a transverse moving mechanism, and the lower end of the second cross beam is provided with a plurality of first stand columns.

In some embodiments, the third support leg has the same structure as the upper part of the second support leg, and is provided with a third sleeve column, a third jacking cylinder and a third cross beam, a third upright column is arranged below the third cross beam, the bottom end of the third upright column is provided with an equalizing beam, and the bottom end of the equalizing beam is provided with a ball hinge seat.

In some embodiments, the top end of the fourth leg is hinged to the main beam upper chord, and the fourth leg is a sleeve column structure and has four supporting points.

In some embodiments, the crown block system comprises a front crown block and a rear crown block, the front crown block and the rear crown block are identical in structure, the front crown block comprises a longitudinal movement cart and a transverse movement trolley, the longitudinal movement cart is in sliding fit with a longitudinal movement track of the upper chord of the main beam, the transverse movement trolley is arranged above the longitudinal movement cart and is in sliding fit with the longitudinal movement cart, and the transverse movement trolley is provided with two lifting points.

In some embodiments, the rear crown block is further provided with a balance wheel, and the balance wheel is arranged at the centers of the two lifting points.

The utility model discloses the beneficial effect who has does:

the utility model discloses a bridge crane for U type roof beam through set up sideslip mechanism and gyration dish at the landing leg, can realize less circuit curve frame roof beam and equipment via hole, is fit for the big longitudinal gradient's of urban rail transit circuit small curve characteristic. Equipment can be turned around by exchanging the first supporting leg and the fourth supporting leg, and the second supporting leg and the third supporting leg, other external equipment is not needed, construction overdue is saved, dismounting cost can be reduced, and working condition requirements of special conditions are met.

1. The double lifting points of the front crown block are matched with the single lifting point of the rear crown block to achieve four-point lifting and three-point balance, so that the U-shaped beam is not damaged by external extra couple in the lifting process. The lifted U-shaped beam can be conveyed to the beam erecting position through the movement of the longitudinal moving cart and the transverse moving trolley, and the U-shaped beam is dropped and erected.

2. As the main beams 1 are symmetrically distributed in the front-back direction and the left-right direction, the first supporting leg is detached and installed at the corresponding position of the back end, and the fourth supporting leg is detached and installed at the corresponding position of the front end. And then the first supporting leg 2 and the fourth supporting leg 5 are supported, and the second supporting leg 3 and the third supporting leg 4 are installed in a transposition mode, so that the front and back exchange of the bridge girder erection machine is realized, and the reverse erection is realized.

3. The second landing leg and the third landing leg are connected with the main beam through the roller wheel box, and the distance between the second landing leg and the third landing leg can be changed, so that the bridge with different spans can be adapted.

Drawings

Fig. 1 is a schematic view of a bridge girder erection machine for U-shaped beams according to an embodiment of the present invention;

fig. 2 is a schematic view of a first leg according to an embodiment of the present invention;

fig. 3 is a schematic view of a second leg according to an embodiment of the present invention;

fig. 4 is a schematic view of a third leg of the embodiment of the present invention;

fig. 5 is a schematic view of a fourth leg according to an embodiment of the present invention;

fig. 6 is a schematic view of a front overhead traveling crane according to an embodiment of the present invention;

fig. 7 is a schematic view of an overhead traveling crane according to an embodiment of the present invention;

FIG. 8 is a schematic diagram illustrating a first step of a via hole method according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of a second step of the via hole method according to an embodiment of the present invention;

FIG. 10 is a third schematic diagram of a via hole method according to an embodiment of the present invention;

FIG. 11 is a fifth step of the via hole method according to the embodiment of the present invention;

fig. 12 is a sixth schematic diagram of a via hole method according to an embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The utility model discloses a bridge crane for U type roof beam includes: girder system, landing leg system, overhead traveling crane system.

Specifically, as shown in fig. 1, the main beam system has two main beams 1 distributed at intervals, the main beams 1 are truss structures with a cross section in an a shape, the main beams 1 are divided into a plurality of sections, and the sections are connected by pin shafts. The upper chord and the lower chord of the main beam 1 are both in I-shaped structures, and the web members are rectangular sectional materials. The upper chord of the main beam 1 is provided with tracks distributed along the longitudinal direction. The main beams 1 are symmetrically distributed in the front-back direction and the left-right direction. The landing leg system includes first landing leg 2, second landing leg 3, third landing leg 4 and fourth landing leg 5, and first landing leg 2, second landing leg 3, third landing leg 4 interval distribution are in proper order at the lower extreme of girder 1, and just first landing leg 2 is located girder 1 front end below, and fourth landing leg 5 is located the rear end face of girder 1.

As shown in fig. 2, the first leg 1 is provided with a first beam, the first beam is divided into an upper layer and a lower layer, the upper layer beam 11 is fixedly connected with the main beam, the upper layer beam 11 is rotatably connected with the lower layer beam 12 through a rotating shaft, and the lower layer beam 12 can rotate around the rotating shaft in the horizontal direction. The two ends of the lower-layer beam 12 are respectively provided with a first sleeve column 13, the first sleeve column 13 is provided with a first jacking cylinder, and the first jacking cylinder is used for driving the first sleeve column to do telescopic motion.

As shown in fig. 3, the second support leg 2 is supported on the lower chord of the main beam 1 through the carrier roller wheel box, the second support leg 2 is in sliding fit with the main beam 1, the lower end of the carrier roller wheel box is provided with a rotary disc 21, the rotary disc 21 can rotate in the horizontal direction, and the rotary disc is used for adjusting the included angle between the second support leg 2 and the main beam 1 on the horizontal plane. The lower end of the rotary disk 21 is connected with a second sleeve column 22 and a second jacking oil cylinder, the lower end of the second sleeve column is provided with a transverse moving disk 23, the transverse moving disk is provided with a transverse moving mechanism 24, the two transverse moving disks are connected through a connecting support, and the transverse moving mechanism 24 is a transverse moving oil cylinder. A second beam 25 is arranged below the transverse moving plate, and 4 first upright posts 26 are arranged at the lower end of the second beam.

As shown in fig. 4, the upper structure of the third leg 4 is the same as that of the second leg 2, and the third leg has a rotary disc, a third column set 31, a third jacking cylinder, a traverse disc and a third cross beam 32. The difference lies in that 4 second vertical columns 33 are arranged below the third cross beam, a balance beam 34 is arranged at the bottom end of each second vertical column, and two spherical hinge seats are arranged at the bottom end of each balance beam. The main beam 1 can be driven to move forwards or backwards through the roller wheel boxes connected with the main beam 1 through the second supporting leg 3 and the third supporting leg 4. The supporting positions of the second supporting leg 3 and the third supporting leg 4 at the lower chord of the main beam 1 can be changed through the roller wheel box, so that the novel girder is suitable for bridges with different spans.

As shown in fig. 5, the fourth leg 5 is a sleeve column structure and has a telescopic function, and the top end of the fourth leg 5 is rotatably connected to the rear end surface of the main beam 1 through a rotating shaft, and the fourth leg 5 can rotate around the rotating shaft.

As shown in fig. 6 and 7, the overhead travelling crane system comprises a front overhead travelling crane 6 and a rear overhead travelling crane 7, the front overhead travelling crane and the rear overhead travelling crane are identical in structure, the front overhead travelling crane comprises a longitudinal movement cart 61 and a transverse movement cart 62, and the bottom end of the longitudinal movement cart 61 is in sliding fit with the rail on the upper chord of the main beam 1 and can move along the longitudinal direction. The bottom end of the transverse trolley 62 is matched with the top end of the longitudinal trolley 61 in a sliding way, and the transverse trolley 62 can move along the transverse direction. The traversing carriage 62 is provided with two hanging points which are symmetrically distributed. The two hoisting points are respectively provided with a steel wire rope, so that the hoisting or descending functions can be realized respectively. Back overhead traveling crane compares still to be equipped with compensating wheel 8 in the overhead traveling crane before, and compensating wheel 8 establishes in the center department of two hoisting points, and compensating wheel 8 is connected with two hoisting points through a wire rope for back overhead traveling crane has only one hoisting point.

According to the utility model discloses a bridge crane for U type roof beam, the third is directly through 4 and stands on the girder erection face or road bed when the frame roof beam, and second landing leg 3 stands on the pier, transports U type roof beam to the bridge crane afterbody through the fortune roof beam car, and the cooperation between the rethread front crown block 6 and the rear crown block 7 and the fortune roof beam car realizes lifting by crane U type roof beam. The beam transporting vehicle is divided into a front beam transporting vehicle and a rear beam transporting vehicle. The U-shaped beam is placed on the cross beams of the front and rear beam transporting vehicles, and the cross beam of the front beam transporting vehicle is provided with two supporting points and can rotate horizontally. The middle of the beam of the rear beam transporting vehicle is provided with a rotary pivot and a swing pivot, so that the beam of the rear beam transporting vehicle can rotate horizontally and swing, a U-shaped beam is transported in a curve, four-point support and three-point balance are met, and the beam body is prevented from being influenced by external torque to cause damage. The double lifting points of the front crown block 6 are matched with the single lifting point of the rear crown block 7 to achieve four-point lifting and three-point balance, so that the U-shaped beam is not damaged by external extra couple in the lifting process. The lifted U-shaped beam can be transported to the beam erecting position through the movement of the longitudinal moving cart and the transverse moving trolley, and the U-shaped beam is dropped and erected.

The utility model discloses a bridge crane for U type roof beam still has reverse function of erectting, when needing reverse the erectting, supports second landing leg 3 and third landing leg 4 earlier, because girder 1 reaches the equal symmetric distribution of left and right sides direction around, pull down first landing leg and install at rear end relevant position, pull down the fourth landing leg and install at front end relevant position. And then the first supporting leg 2 and the fourth supporting leg 5 are supported, and the second supporting leg 3 and the third supporting leg 4 are installed in a transposition mode, so that the front and back exchange of the bridge girder erection machine is realized, and the reverse erection is realized.

The utility model discloses a bridge girder erection machine via hole method for U type roof beam as follows:

firstly, the front crown block 6 and the rear crown block 7 are moved above the third supporting leg 4, the second supporting leg 3 and the third supporting leg 4 are supported, and the first supporting leg 2 and the fourth supporting leg 5 are emptied;

secondly, the main beam 1 moves forwards, the third supporting leg 4 supports the main beam, the second supporting leg 3 moves transversely towards the inner side of the curve, then the second supporting leg 3 supports the main beam, and the third supporting leg 4 moves transversely towards the outer side of the curve;

thirdly, the main beam 1 moves forwards, the third supporting leg 4 supports the main beam, the second supporting leg 3 moves transversely towards the inner side of the curve, then the second supporting leg 3 supports the main beam, the third supporting leg 4 moves transversely towards the outer side of the curve, and at the moment, the first supporting leg 2 is rotated until the lower-layer cross beam 12 is parallel to the bridge pier and supports the bridge pier

Fourthly, supporting a fourth supporting leg 5 on the bridge floor, emptying the third supporting leg 4, moving the third supporting leg 4 to the position of the second supporting leg 3, and supporting the third supporting leg 4;

fifthly, the second support leg 3 is emptied and moved to the first support leg 2, the second support leg 3 is supported on a pier, the first support leg 2 and the fourth support leg 5 are emptied, the front overhead crane 6 and the rear overhead crane 7 are moved to the second support leg 3, and the main beam 1 moves forwards;

and sixthly, transversely moving the second support leg 3 and the third support leg 4 to ensure that the center of the second support leg 3 is superposed with the center of the pier and the center of the third support leg 4 is superposed with the center of the bridge, and completing the via hole.

According to the utility model discloses a U roof beam via hole method for frame bridge crane of U type roof beam through twice antedisplacement and cubic lateral adjustment second landing leg 3 and third landing leg 4, can realize the U roof beam via hole of the big longitudinal gradient of less curve.

The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the invention and to simplify the description, and the words are not intended to have a special meaning unless otherwise stated.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some of the features of the embodiments, but such modifications or substitutions do not depart from the spirit and scope of the present invention.

Claims (8)

1. A bridge girder erection machine for U-shaped girders, comprising:

a main beam system, a support leg system and an overhead travelling crane system;

the supporting leg system comprises a first supporting leg, a second supporting leg, a third supporting leg and a fourth supporting leg, wherein the first supporting leg, the second supporting leg and the third supporting leg are sequentially distributed at intervals at the lower end of the main beam, the first supporting leg is located at the front end of the main beam, and the fourth supporting leg is located on the rear end face of the main beam.

2. A bridge girder erection machine for U-shaped beams according to claim 1, wherein the main beam system comprises two main beams which are distributed at intervals, the main beams are truss structures with A-shaped sections, the main beams are divided into a plurality of sections, the sections are connected through pin shafts, and the upper chord of the main beam is provided with a longitudinal movement track for the movement of an overhead traveling crane.

3. A bridge girder erection machine for a U-shaped beam as claimed in claim 1, wherein the first leg is provided with a first cross beam, the first cross beam is divided into an upper layer and a lower layer, the upper layer cross beam is connected with the main beam, the lower layer cross beam is rotatably connected with the upper layer cross beam, two ends of the lower layer cross beam are hinged with a first sleeve column, and the sleeve column is provided with a first jacking cylinder for driving the first sleeve column to move telescopically.

4. A bridge girder erection machine for U-shaped beams as claimed in claim 1, wherein the second supporting leg is supported on the lower chords of the two main beams through roller carriages, the two roller carriages are connected with each other through a universal joint, the lower end of the roller carriage is connected with a rotary disc for adjusting the included angle between the second supporting leg and the main beams, the lower end of the rotary disc is provided with a second jacking cylinder and a second sleeve column, the lower end of the second sleeve column is provided with a transverse moving disc and a second transverse beam, the transverse moving disc is provided with a transverse moving mechanism, and the lower end of the second transverse beam is provided with a plurality of upright columns.

5. A bridge girder erection machine for U-shaped beams as claimed in claim 4, wherein the third supporting leg has the same upper structure as the second supporting leg and is provided with a third sleeve column, a third jacking cylinder and a third cross beam, a third upright column is arranged below the third cross beam, an equalizing beam is arranged at the bottom end of the third upright column, and a spherical hinge seat is arranged at the bottom end of the equalizing beam.

6. A bridging machine for U-shaped beams according to claim 1, characterized in that the top end of the fourth leg is hinged with the main beam upper chord, the fourth leg is a column sleeved structure and has four supporting points.

7. A bridge girder erection machine according to any one of claims 1 to 6, wherein the crown block system comprises a front crown block and a rear crown block, the front crown block and the rear crown block are identical in structure, the front crown block comprises a longitudinal movement cart slidably engaged with a longitudinal movement rail of the upper chord of the main girder and a traverse carriage slidably engaged with the longitudinal movement cart, and the traverse carriage has two hoisting points.

8. A bridge girder erection machine for U-shaped beams according to claim 7, wherein the rear crown block is further provided with a balance wheel provided at the center of the two hoisting points.

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