CN216155348U - Box girder construction hanging bracket - Google Patents

Abstract

The utility model provides a box girder construction hanger which comprises a girder body and a movable block arranged on the girder body, wherein a hoisting mechanism is arranged in the middle of the movable block; the hoisting mechanism comprises a lifting screw rod arranged on a moving block, an internal thread pipe in threaded fit with the lifting screw rod is arranged on the moving block, the internal thread pipe is rotatably arranged on the moving block, and a first driver used for driving a thread sleeve to rotate is arranged on the moving block. The box girder hoisting device is stable and reliable in structure and convenient to use, can realize stable hoisting construction operation on the box girder, is high in stability in the construction process, can directly drive the box girder to ascend through the connecting frame by hoisting the box girder through the lifting screw and the connecting frame, and is more stable in hoisting due to the rigid structure of the lifting screw; the box girder is driven to move by the moving block, the box girder is not prone to shaking in the erecting construction process, and the safety and the construction efficiency of box girder erecting construction are improved.

Description

Box girder construction hanging bracket

Technical Field

The utility model belongs to the field of box girder construction, and particularly relates to a box girder construction hanging bracket.

Background

The box girder is one of the middle girders in bridge engineering, is hollow inside, has flanges on two sides of the upper part, is similar to a box, is named as a main part of a bridge such as a viaduct and is divided into a single box, a plurality of boxes and the like, and the viaduct is generally constructed by hanging the prefabricated box girder on a pier through a hanging bracket device and then combining the box girders.

However, in the prior art, most of the existing hanger devices use flexible steel wires as a hoisting mechanism, and the flexible characteristic of the steel wires enables the box girder to easily shake when being erected, so that the correction time of the box girder is increased, the erection construction efficiency of the box girder is not improved, the steel wires which shake are easy to fatigue, even break, and the box girder falls, and the improvement of the safety in the construction process is not facilitated.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a box girder construction hanger, so as to solve the problem that a box girder is easy to shake when being erected by using an existing hanger device.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

a box girder construction hanger comprises a girder body and a movable block arranged on the girder body, wherein a hoisting mechanism is arranged in the middle of the movable block; the hoisting mechanism comprises a lifting screw rod arranged on a moving block, an internal thread pipe in threaded fit with the lifting screw rod is arranged on the moving block, the internal thread pipe is rotatably arranged on the moving block, and a first driver for driving a thread sleeve to rotate is arranged on the moving block; the one end that lifting screw passed the internal thread pipe is equipped with the coupling assembling that is used for assembling the case roof beam, and the other end is equipped with spacing subassembly, coupling assembling includes the link that sets up on the lifting screw, and the lifting screw corresponds at least and sets up two, connects through the link between each lifting screw.

Furthermore, a traveling mechanism used for driving the moving block to move along the length direction of the beam body is arranged on the moving block, the traveling mechanism comprises traveling wheels which are correspondingly arranged on the left side and the right side of the moving block, at least four traveling wheels are correspondingly arranged, and a power assembly used for driving the traveling wheels to rotate is arranged on the moving block.

Furthermore, the walking wheels are rotatably installed on the moving block through the rotating shafts, and the power assembly comprises a second driver which is arranged on the moving block and used for driving the rotating shafts to rotate.

Furthermore, the lifting screw rods are correspondingly arranged in two, the internal thread pipes are correspondingly arranged in two, and the first driver drives the two internal thread pipes to synchronously rotate.

Furthermore, the limiting assembly comprises a limiting block arranged on the lifting screw rod, and the lifting screw rods are connected through the limiting block.

Furthermore, the stopper left and right sides corresponds and is equipped with the lifting rope, and the lifting rope corresponds at least and sets up two, each the equal one end of lifting rope sets up on the stopper, and the other end is equipped with the lifting hook.

Furthermore, the position that corresponds the lifting rope on the roof beam body is equipped with the dwang with lifting rope complex, the dwang rotates and installs on the roof beam body, and the length direction of dwang is the same with the length direction of the roof beam body.

Furthermore, a sliding sleeve is slidably mounted on the rotating rod, a pulley matched with the lifting rope is arranged on the sliding sleeve, an accommodating groove for accommodating the lifting rope is formed in the pulley, and the lifting rope is wound on the pulley for at least one circle; the pulley rotates to be installed on the sliding sleeve, and pulley, sliding sleeve and dwang coaxial setting.

Compared with the prior art, the box girder construction hanging bracket has the following advantages:

the box girder hoisting device is stable and reliable in structure and convenient to use, can realize stable hoisting construction operation on the box girder, is high in stability in the construction process, can directly drive the box girder to ascend through the connecting frame by hoisting the box girder through the lifting screw and the connecting frame, and is more stable in hoisting due to the rigid structure of the lifting screw; the box girder is driven to move by the moving block, so that the box girder is not easy to shake in the erecting construction process, and the safety and the construction efficiency of the erecting construction of the box girder are improved; each lifting screw is connected through using the stopper, has not only improved lifting screw's structural strength, ensures that the drive case roof beam that lifting screw can be stable goes up and down, and the lifting rope on the stopper can also play secondary guard action to the case roof beam in addition, even the case roof beam on the link takes place not hard up, and the lifting hook on the lifting rope also can hoist and mount and fix the case roof beam, avoids the case roof beam whereabouts, has improved the security that the case roof beam erects the construction.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic structural view of a traveling mechanism in a box girder construction hanger according to an embodiment of the utility model;

fig. 2 is a schematic structural diagram of a lifting mechanism in a box girder construction hanger according to an embodiment of the utility model;

fig. 3 is a schematic structural diagram of a beam body in the box girder construction hanger according to the embodiment of the utility model;

fig. 4 is a schematic structural view of a limiting block of a box girder construction hanger according to an embodiment of the present invention when a lifting rope is disposed thereon;

fig. 5 is a schematic structural view of a rotating rod in the box girder construction hanger according to the embodiment of the present invention.

Description of reference numerals:

1. a beam body; 2. a sliding port; 3. a moving block; 4. a first driver; 5. a drive rod; 6. a first bevel gear; 7. an internally threaded tube; 8. a second bevel gear; 9. a lifting screw; 10. a connecting frame; 11. a wheel groove; 12. a cavity; 13. a second driver; 14. a third bevel gear; 15. a rotating shaft; 16. a fourth bevel gear; 17. a traveling wheel; 18. a support frame; 19. rotating the rod; 20. a pulley; 21. a lifting rope; 22. a hook; 23. accommodating grooves; 24. a snap ring; 25. a protective cover; 26. a limiting block; 27. a sliding sleeve; 28. and (5) supporting legs.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

A box girder construction hanger is shown in figures 1 to 5 and comprises a girder body 1 and a moving block 3 horizontally arranged on the girder body 1 in a sliding manner, wherein a traveling mechanism used for driving the moving block 3 to move along the length direction of the girder body 1 is arranged on the moving block 3, and a hoisting mechanism is arranged in the middle of the moving block 3; the traveling mechanism comprises traveling wheels 17 correspondingly arranged on the left side and the right side of the moving block 3, at least four traveling wheels 17 are correspondingly arranged, and a power assembly for driving the traveling wheels 17 to rotate is arranged on the moving block 3; the walking wheels 17 can be arranged in a group of two, the two walking wheels 17 corresponding to the left side and the right side of the moving block 3 are connected through a rotating shaft 15, the power assembly can comprise a second driver 13 which is arranged on the moving block 3 and used for driving the middle rotating shaft 15 to rotate, and the second driver 13 and the rotating shaft 15 can be connected through a gear transmission mechanism; the four traveling wheels 17 can realize the stable movement of the moving block 3 on the beam body 1, so that the moving block 3 is prevented from inclining in the moving process, and a hoisting mechanism on the moving block 3 can stably hoist the box beam all the time.

Specifically, a sliding opening 2 convenient for the moving block 3 to move can be arranged on the beam body 1, the top and the bottom of the moving block 3 both extend out of the sliding opening 2, wheel grooves 11 matched with the walking wheels 17 can be arranged on the beam body 1 corresponding to the left and the right sides of the sliding opening 2, the walking wheels 17 can be arranged in the wheel grooves 11, so as to realize the stable movement of the moving block 3 on the beam body 1, the length direction of the wheel groove 11 is the same as that of the beam body 1, in order to facilitate the assembly of the moving block 3, the beam body 1 can be provided with an assembly opening corresponding to the position of the sliding opening 2 and the wheel groove 11, after the rotation assembly of the moving block 3 is completed, the assembly opening can be blocked by using a blocking block, the blocking block can be fixed on the beam body 1 by welding or screw installation, the assembly opening is blocked, the movable block 3 can be stably moved on the beam body 1, and meanwhile, the overall structural strength of the beam body 1 is improved.

Optionally, the supporting legs 28 used for supporting the girder body 1 can be arranged on the girder body 1 all around, the supporting legs 28 can be arranged four corresponding to the left side and the right side of the girder body 1, the four supporting legs 28 can realize stable support of the girder body 1, and when the hanger is used for hoisting the box girder, the girder body 1 can be stably erected on a pier through the supporting legs 28.

Optionally, the walking wheel 17 can correspond and set up six, be favorable to further improving the stability that the movable block 3 removed, walking wheel 17 can rotate through axis of rotation 15 and install on the movable block 3, wherein two walking wheels 17 that are located the middle part of movable block 3 can rotate through a middle part axis of rotation 15 and install on the movable block 3, can realize the transmission through gear drive mechanism between second driver 13 and the middle part axis of rotation 15, make second driver 13 drive axis of rotation 15 and walking wheel 17 rotate, realize driving the walking of movable block 3 on the roof beam body 1 and remove then.

Specifically, the second driver 13 can adopt a single-shaft driving motor, a cavity 12 for accommodating the second driver 13 is arranged in the moving block 3, a rotating shaft 15 is rotatably mounted in the cavity 12, and two ends of the rotating shaft 15 extend out of the cavity 12 and are fixedly connected with the traveling wheels 17; a third bevel gear 14 is fixedly mounted on the output end of the second driver 13, a fourth bevel gear 16 is fixedly sleeved on the rotating shaft 15, and the third bevel gear 14 is meshed with the fourth bevel gear 16, so that the second driver 13 drives the traveling wheels 17 to rotate, and the rotating traveling wheels 17 can drive the moving block 3 to move on the beam body 1, thereby facilitating the alignment between the box beams.

The hoisting mechanism comprises a lifting screw 9 arranged on a moving block 3, an internal thread pipe 7 in threaded fit with the lifting screw 9 is arranged on the moving block 3, the internal thread pipe 7 is rotatably arranged on the moving block 3, and a first driver 4 for driving a thread sleeve to rotate is arranged on the moving block 3; lifting screw 9 passes the one end of internal thread pipe 7 and is equipped with the coupling assembling that is used for assembling the case roof beam, and the other end is equipped with spacing subassembly, and coupling assembling includes the link 10 that sets up on lifting screw 9, and lifting screw 9 corresponds at least and sets up two, connects through link 10 between each lifting screw 9.

The lifting screw 9 can correspond and set up two, internal thread pipe 7 corresponds lifting screw 9 and sets up two, internal thread pipe 7 can rotate through the bearing and install on movable block 3, can set up the mounting hole that is used for installing internal thread pipe 7 on the movable block 3, two internal thread pipes 7 of first driver 4 drive rotate in step, connect through link 10 between two lifting screw 9, under the limiting effect of link 10, two lifting screw 9 can not take place to rotate, according to ball's principle, when internal thread pipe 7 rotates, utilize the screw-thread fit between internal thread pipe 7 and the lifting screw 9, can realize driving lifting screw 9 and stably go up and down on movable block 3, thereby realize the lift hoist and mount to the upper box girder of link 10.

Optionally, the first driver 4 may adopt a dual-shaft motor to drive the two internal threaded pipes 7 to rotate synchronously, a protective cover 25 may be disposed on the moving block 3 at a position corresponding to the first driver 4, the protective cover 25 may be fixed on the moving block 3 by a screw, the two output ends of the dual-shaft motor may be provided with driving rods 5, and the driving rods 5 and the internal threaded pipes 7 are connected by a gear transmission mechanism; two side walls of the protective cover 25 can be provided with rotating through holes, the two driving rods 5 are respectively connected with the two rotating through holes in a rotating way, and bearing seats matched with the driving rods 5 can also be arranged in the rotating through holes; the protection cover 25 can not only isolate and protect the double-shaft motor, but also play a certain limiting role for the driving rod 5, ensure that the driving rod 5 keeps stable in the rotating process, is favorable for improving the synchronous rotating precision of the two internal thread pipes 7, and then improves the synchronous lifting precision of the two lifting screw rods 9.

It is specific, the one end of actuating lever 5 can be connected with the output of double-shaft motor through the reduction gear, in order to improve the rotation moment of torsion of actuating lever 5, the other end fixed mounting of actuating lever 5 has first bevel gear 6, all be equipped with on two internal thread pipes 7 with first bevel gear 6 complex second bevel gear 8, two first bevel gear 6 at double-shaft motor both ends respectively with two internal thread pipe 7 on the second bevel gear 8 meshing, make double-shaft motor can drive two internal thread pipes 7 and carry out synchronous rotation, realize two lifting screw 9's synchronous lifting, compare other drive methods, this kind uses double-shaft motor to add gear drive structure's pure mechanical system, the reliability is higher, the performance is more stable, two lifting screw 9 of drive that can be better go up and down in step, be favorable to improving the stability of case roof beam at hoist and mount in-process.

Optionally, the first driver 4 is arranged above the moving block 3, the connecting frame 10 is arranged below the moving block 3, a limiting ring can be arranged on the internal thread tube 7 at a position corresponding to a position between the moving block 3 and the second bevel gear 8, the limiting ring is fixed on the internal thread tube 7, the outer diameter of the limiting ring is larger than the aperture of the mounting hole, the limiting ring can limit the internal thread tube 7 by abutting against the moving block 3, and the internal thread tube 7 is prevented from moving; the position that the movable block 3 below corresponds the mounting hole also can set up the holding ring that is used for restricting 7 removal of internal thread pipe, can fix on the internal thread pipe 7 with holding ring complex apical ring, the holding ring can with 3 integrated into one piece of movable block, the holding ring can withstand the apical ring on the internal thread pipe 7 and realize spacing to 7 internal thread pipe, all can set up self-lubricating gasket on spacing ring and the holding ring to the stable rotation of internal thread pipe 7 is convenient for.

The limiting assembly comprises limiting blocks 26 arranged on the lifting screws 9, and the lifting screws 9 are connected through the limiting blocks 26; two lifting screw 9 can be welded fastening respectively at the both ends of stopper 26, in order to realize the stable connection between stopper 26 and the lifting screw 9, stopper 26, lifting screw 9 and link 10 can form a stable frame construction, frame construction is more stable, can improve lifting screw 9 at the stability of lift in-process, stopper 26 can also be used for restricting lifting screw 9's removal in addition, avoid lifting screw 9 and internal thread pipe 7 to take place to break away from, ensure that lifting screw 9 can be stable drive case roof beam and go up and down.

The working principle of the box girder construction hanger provided by the utility model is as follows:

when the box girder is hoisted by using the hoisting frame, the girder body 1 can be erected on a pier without erecting the box girder through the supporting legs 28, the box girder is placed at the bottom of the connecting frame 10, and the connecting frame 10 and the box girder can be fixed together by a bolt fixing method; then, a first driver 4 can be started, the first driver 4 drives two driving rods 5 to rotate through an output end, the driving rods 5 drive a second bevel gear 8 to rotate through a first bevel gear 6, the second bevel gear 8 drives an internal thread pipe 7 to rotate, the internal thread pipe 7 drives a lifting screw 9 to ascend under the action of threads, and the two lifting screws 9 drive a box girder to ascend through a connecting frame 10 until the box girder ascends to a proper height; then can start second driver 13, second driver 13 drives fourth bevel gear 16 through third bevel gear 14 and rotates, and fourth bevel gear 16 drives two walking wheels 17 through axis of rotation 15 and rotates, and two walking wheels 17 drive all the other walking wheels 17 and movable block 3 through rotating and move on the roof beam body 1, and movable block 3 can drive the case roof beam through link 10 and remove this moment, and after the case roof beam removed one side of another case roof beam, can weld equipment work to two case roof beams.

In an optional embodiment, the left side and the right side of the limit block 26 are correspondingly provided with at least two lifting ropes 21, one end of each lifting rope 21 is arranged on the limit block 26, and the other end of each lifting rope 21 is provided with a lifting hook 22; the lifting rope 21 can adopt a steel wire rope, a binding ring for installing the lifting rope 21 can be arranged on the limiting block 26, the binding ring can be integrally formed with the limiting block 26, a lifting ring for installing the lifting hook 22 can also be arranged on the lifting rope 21, and the lifting hook 22 can be installed and fixed on the lifting ring through a positioning pin so as to realize stable connection between the lifting hook 22 and the lifting rope 21.

A rotating rod 19 matched with the lifting rope 21 is arranged on the beam body 1 corresponding to the lifting rope 21, the rotating rod 19 is rotatably installed on the beam body 1, the length direction of the rotating rod 19 is the same as that of the beam body 1, a support frame 18 for installing the rotating rod 19 can be arranged on the beam body 1, the support frame 18 can be fixedly welded on the beam body 1, and a bearing seat in rotary fit with the rotating rod 19 is arranged on the support frame 18; the lifting rope 21 can be at least around rolling up the round on dwang 19 to realize lifting rope 21 and dwang 19's cooperation, through with the lifting rope 21 around rolling up on dwang 19, dwang 19 can restrict the removal of lifting rope 21, avoids lifting rope 21 to take place to rock in the work progress, and the pulling force between lifting rope 21 and the stopper 26 can also be alleviated in the dispersion to dwang 19 in addition, is favorable to improving the stability and the life of lifting rope 21.

Optionally, a sliding sleeve 27 is slidably mounted on the rotating rod 19, a pulley 20 matched with the lifting rope 21 is arranged on the sliding sleeve 27, an accommodating groove 23 for accommodating the lifting rope 21 is arranged on the pulley 20, and the lifting rope 21 is wound at least one turn on the pulley 20; the pulley 20 is rotatably installed on the sliding sleeve 27, the sliding sleeve 27 can be provided with a snap ring 24 corresponding to two sides of the pulley 20 for limiting the movement of the pulley 20, the snap ring can be welded and fixed on the sliding sleeve 27, and the pulley 20, the sliding sleeve 27 and the rotating rod 19 are coaxially arranged.

Specifically, the pulley 20 can be rotatably mounted on the sliding sleeve 27 through a bearing, the accommodating groove 23 on the pulley 20 can limit the lifting rope 21, so that the lifting rope 21 is prevented from being separated from the pulley 20, the sliding friction between the lifting rope 21 and the rotating rod 19 can be changed into rolling friction through the pulley 20, the friction loss is reduced, and the service life and the reliability of the lifting rope 21 are improved; in the process of installing the lifting rope 21, an operator can also adjust the length of the lifting rope 21 by adjusting the number of turns of the lifting rope 21 wound on the pulley 20, so that the hook 22 on the lifting rope 21 can better hook the box girder.

By rotatably installing the rotating rod 19 on the beam body 1 and arranging the slidable sliding sleeve 27 on the rotating rod 19, when the first driver 4 drives the lifting screw rod 9 to lift, and when the box girder is lifted, the lifting rope 21 can lift along with the limiting block 26 and drive the pulley 20 to rotate, at the moment, the pulley 20 can effectively reduce the friction between the lifting rope 21 and the sliding sleeve 27, so that the lifting rope 21 can move conveniently, and meanwhile, the abrasion of the lifting rope 21 can be reduced; when the second driver 13 drives the moving block 3 to move, the accommodating groove 23 on the pulley 20 can play a good limiting role for the lifting rope 21, and along with the movement of the moving block 3, the lifting rope 21 can also slide on the rotating rod 19 through driving the sliding sleeve 27, so that the adaptability movement of the lifting rope 21 on the rotating rod 19 is realized, the inclination of the lifting rope 21 is avoided, and the box girder can be stably hung on the lifting rope 21 all the time.

In the actual construction operation process, the hoisting operation is not strictly ordered, in the actual construction, the height and the horizontal position of the box girder may need to be adjusted continuously, and at this time, if the lifting rope 21 and the rotating rod 19 are directly wound, the quick abrasion of the lifting rope 21 can be caused, the service life and the reliability of the lifting rope 21 are reduced, and the safety protection effect of the lifting rope 21 is not facilitated; this kind of construction gallows that this embodiment provided, through set up sliding sleeve 27 on the dwang 19 that rotates the setting, and set up pulley 20 on sliding sleeve 27, when lifting rope 21 removes, pivoted dwang 19 can cooperate with sliding sleeve 27, even sliding sleeve 27 takes place to block, dwang 19 also can stagger the jam position fast through rotating, make sliding sleeve 27 continue to slide along dwang 19, and then avoid sliding sleeve 27 to take place to remove the hysteresis on dwang 19, ensure that sliding sleeve 27 can be stable all the time follow lifting rope 21 and remove, thereby ensure to stabilize the cooperation all the time between lifting rope 21 and the pulley 20, the reliability and the stability of this kind of gallows in the work progress have been improved.

The case roof beam is hanging and is establishing the in-process and not complete zero risk, the condition that drops from link 10 can appear probably, in order to improve the security of case roof beam, hang the case roof beam and establish the time, hang two lifting hooks 22 and establish on the case roof beam, when the screw rod passes through link 10 and drives the case roof beam and rise, stopper 26 also drives lifting hook 22 through lifting rope 21 and rises, lifting rope 21 can slide on pulley 20 when rising, when the case roof beam breaks away from link 10, lifting rope 21 and lifting hook 22 can hang the case roof beam, prevent that the case roof beam from directly dropping to ground, ensure case roof beam and personnel's safety in the work progress.

The box girder hoisting device is stable and reliable in structure and convenient to use, can realize stable hoisting construction operation on the box girder, is high in stability in the construction process, can directly drive the box girder to ascend through the connecting frame by hoisting the box girder through the lifting screw and the connecting frame, and is more stable in hoisting due to the rigid structure of the lifting screw; the box girder is driven to move by the moving block, so that the box girder is not easy to shake in the erecting construction process, and the safety and the construction efficiency of the erecting construction of the box girder are improved; each lifting screw is connected through using the stopper, has not only improved lifting screw's structural strength, ensures that the drive case roof beam that lifting screw can be stable goes up and down, and the lifting rope on the stopper can also play secondary guard action to the case roof beam in addition, even the case roof beam on the link takes place not hard up, and the lifting hook on the lifting rope also can hoist and mount and fix the case roof beam, avoids the case roof beam whereabouts, has improved the security that the case roof beam erects the construction.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (8)

1. The utility model provides a case roof beam construction gallows which characterized in that: the beam comprises a beam body (1) and a moving block (3) arranged on the beam body (1), wherein a hoisting mechanism is arranged on the moving block (3), the hoisting mechanism comprises a lifting screw (9) arranged on the moving block (3), an internal thread pipe (7) in threaded fit with the lifting screw (9) is arranged on the moving block (3), the internal thread pipe (7) is rotatably arranged on the moving block (3), and a first driver (4) for driving a thread sleeve to rotate is arranged on the moving block (3); the one end that lifting screw (9) passed internal thread pipe (7) is equipped with the coupling assembling that is used for assembling the case roof beam, and the other end is equipped with spacing subassembly, coupling assembling includes link (10) that set up on lifting screw (9), and lifting screw (9) correspond at least and set up two, connect through link (10) between each lifting screw (9).

2. A box girder construction hanger according to claim 1, wherein: the beam body (1) is provided with a moving block (3), the moving block (3) is provided with a traveling mechanism used for driving the moving block (3) to move along the length direction of the beam body (1), the traveling mechanism comprises traveling wheels (17) which are correspondingly arranged on the left side and the right side of the moving block (3), the traveling wheels (17) are at least correspondingly arranged in four, and the moving block (3) is provided with a power assembly used for driving the traveling wheels (17) to rotate.

3. A box girder construction hanger according to claim 2, wherein: the walking wheels (17) are rotatably mounted on the moving block (3) through rotating shafts (15), and the power assembly comprises a second driver (13) which is arranged on the moving block (3) and used for driving the rotating shafts (15) to rotate.

4. A box girder construction hanger according to claim 1, wherein: the lifting screw rods (9) are correspondingly arranged in two, the internal thread pipes (7) are correspondingly arranged in two in the lifting screw rods (9), and the first driver (4) drives the two internal thread pipes (7) to synchronously rotate.

5. A box girder construction hanger according to claim 1, wherein: the limiting assembly comprises limiting blocks (26) arranged on the lifting screw rods (9), and the lifting screw rods (9) are connected through the limiting blocks (26).

6. A box girder construction hanger according to claim 5, wherein: limiting block (26) left and right sides corresponds and is equipped with lifting rope (21), and lifting rope (21) correspond at least and set up two, each lifting rope (21) homogeneous end sets up on limiting block (26), and the other end is equipped with lifting hook (22).

7. A box girder construction hanger according to claim 6, wherein: the position that corresponds lifting rope (21) on the roof beam body (1) is equipped with dwang (19) with lifting rope (21) complex, dwang (19) are rotated and are installed on the roof beam body (1), and the length direction of dwang (19) is the same with the length direction of the roof beam body (1).

8. A box girder construction hanger according to claim 7, wherein: a sliding sleeve (27) is slidably mounted on the rotating rod (19), a pulley (20) matched with the lifting rope (21) is arranged on the sliding sleeve (27), an accommodating groove (23) for accommodating the lifting rope (21) is formed in the pulley (20), and the lifting rope (21) is wound on the pulley (20) for at least one circle; the pulley (20) is rotatably arranged on the sliding sleeve (27), and the pulley (20), the sliding sleeve (27) and the rotating rod (19) are coaxially arranged.

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