CN220926025U - Box girder lifting device - Google Patents

Abstract

The utility model relates to the technical field of safe hoisting of building construction tools, and discloses a box girder hoisting device, which comprises: the concrete box girder, special wire rope has been cup jointed on the surface of concrete box girder, the top of special wire rope is provided with wear-resisting wire rope, wear-resisting wire rope's top is provided with hangs and draws wire rope, it sets up the bottom at the portal crane to hang and draw wire rope, be provided with the shackle butt joint between special wire rope and the wear-resisting wire rope. The box girder hoisting device solves the problems that in the prior art, a common hoisting method is only to directly bind and hoist by using a steel wire rope, and the place contacted with the steel wire rope frequently occurs during hoisting is damaged due to friction, so that the surface of the box girder is damaged, the steel wire rope is damaged, and a special tool for hoisting is needed for protecting the box girder and hoisting more safely, but the hoisting tool on the current market is not safe enough, and safety accidents are easy to occur.

Description

Box girder lifting device

Technical Field

The utility model relates to the technical field of safe hoisting of building construction tools, in particular to a box girder hoisting device.

Background

The prefabricated box girder has larger section torsional strength and bending strength, is low in price and high in construction speed, can be rapidly developed and widely applied in bridge construction in the field of construction, and has great market demand.

Because the volume and the weight of the box girder are generally larger, a crane is needed to hoist the box girder before and after transportation, but in the prior art, a common hoisting method is only to directly bind the box girder by using a steel wire rope, the hoisting method is used for hoisting, the place which is frequently contacted with the steel wire rope is damaged by friction during hoisting, the steel wire rope is damaged, and a special tool for hoisting is needed for protecting the box girder and hoisting more safely, but the hoisting tool on the market at present is not safe enough, and safety accidents easily occur, so that a novel hoisting tool is designed.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a box girder hoisting device, which solves the problems mentioned in the background.

The utility model provides the following technical scheme: a box girder lifting device, comprising: the concrete box girder, special wire rope has been cup jointed on the surface of concrete box girder, the top of special wire rope is provided with wear-resisting wire rope, wear-resisting wire rope's top is provided with hangs and draws wire rope, it sets up the bottom at the portal crane to hang and draw wire rope, be provided with the shackle butt joint between special wire rope and the wear-resisting wire rope.

Preferably, the wear-resistant steel wire rope comprises a rope core, and rubber sleeves are arranged on the outer edges of the rope core and the special steel wire rope in a wrapping mode.

Preferably, the gantry crane is a single wire hanging mechanism, the wear-resistant wire ropes arranged at the bottom ends of the wire hanging ropes are in a forked arrangement, the distances from the two ends of the wear-resistant wire ropes to the wire hanging ropes are equal, the bottom of the concrete box girder is overlapped with a first carrier plate, and the special wire ropes are fixedly arranged on the side surfaces of the first carrier plate.

Preferably, the first carrier plate includes first steel sheet base, the thickness of first steel sheet base is five centimetres, the antiskid hook is installed to one side that is close to concrete box girder end of first steel sheet base, the top of first steel sheet base is provided with first rubber pad, first rubber pad is located between first steel sheet base and the concrete box girder, the thickness of first rubber pad is four centimetres.

Preferably, the gantry crane is a symmetrical double-hanging wire mechanism, the bottom of each hanging wire rope is spliced with one wear-resistant wire rope, the bottom of each special wire rope is provided with two second bearing plates, and the two second bearing plates are arranged in an axisymmetric mode by taking the center of the gantry crane as the center.

Preferably, the second bearing plate comprises a second steel plate base, the thickness of the second steel plate base is five centimeters, a second rubber pad is arranged at the top of the second steel plate base, and the thickness of the second rubber pad is four centimeters.

Compared with the prior art, the utility model has the following beneficial effects:

1. this box girder hoist device all wraps up the rope core through the wire rope that will contact with concrete box girder and handles, reduces the friction between wire rope and the concrete box girder when hoist and mount, and then protects wire rope and the concrete box girder, when avoiding the concrete box girder surface to appear the mar, improves wire rope's life to through using the steel sheet as lifting device, changed atress direction and atress point, made box girder hoist and mount safer, improved work efficiency.

2. This case roof beam hoist device when using the gantry crane of single lifting wire and double lifting wire respectively, according to the gantry crane difference, the different hoist rope structures of self-adaptation change makes the concrete case roof beam can adapt to various lifting means, further increases the convenience of concrete case roof beam when hoist and mount to protect it.

Drawings

FIG. 1 is a schematic view of a single suspension wire hoisting structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the wear-resistant steel wire rope of the utility model;

FIG. 3 is a schematic side view of a single suspension wire of the present utility model;

FIG. 4 is a schematic view of a dual suspension wire hoisting structure according to the present utility model;

FIG. 5 is a schematic view of a part of a double suspension wire structure according to the present utility model;

FIG. 6 is a schematic side view of a dual suspension wire of the present utility model.

In the figure: 1. a concrete box girder; 2. a first carrier plate; 21. a first steel plate base; 22. a first rubber pad; 3. a special steel wire rope; 4. wear-resistant steel wire rope; 41. a rubber sleeve; 42. a rope core; 5. hoisting and pulling the steel wire rope; 6. a second carrier plate; 61. a second steel plate base; 62. a second rubber pad; 7. a gantry crane; 8. shackle off; 9. an anti-slip hook.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, a box girder lifting device includes: the concrete box girder 1, the surface of concrete box girder 1 has cup jointed special wire rope 3, and the top of special wire rope 3 is provided with wear-resisting wire rope 4, and the top of wear-resisting wire rope 4 is provided with and hangs and draws wire rope 5, hangs and draws wire rope 5 to set up in the bottom of gantry crane 7, and special wire rope 3 is docked through being provided with shackle 8 between the wear-resisting wire rope 4.

Wherein; the wear-resistant steel wire rope 4 comprises a rope core 42, rubber sleeves 41 are wrapped on the outer edges of the rope core 42 and the special steel wire rope 3, the steel wire rope in contact with the concrete box girder 1 is wrapped by the rope core 42, friction between the steel wire rope and the concrete box girder 1 during hoisting is reduced, and the steel wire rope and the concrete box girder 1 are protected.

Embodiment one:

Wherein; the gantry crane 7 is a single suspension wire mechanism, the wear-resistant steel wire ropes 4 mounted at the bottom ends of the suspension wire ropes 5 are in a forked arrangement, the distances from the two ends of the forked wear-resistant steel wire ropes 4 to the suspension wire ropes 5 are equal, the bottom of the concrete box girder 1 is overlapped with the first bearing plate 2, the special steel wire ropes 3 are fixedly arranged on the side surfaces of the first bearing plate 2, the wear-resistant steel wire ropes 4 are evenly divided into two ends, and the two ends of the concrete box girder 1 are pulled through the first bearing plate 2 respectively, so that the concrete box girder 1 can be transversely lifted, and the concrete box girder 1 is prevented from falling due to uneven stress.

Wherein; the first carrier plate 2 includes first steel sheet base 21, the thickness of first steel sheet base 21 is five centimetres, the anti-slip hook 9 is installed to one side that is close to concrete box girder 1 tip of first steel sheet base 21, the top of first steel sheet base 21 is provided with first rubber pad 22, first rubber pad 22 is located between first steel sheet base 21 and the concrete box girder 1, the thickness of first rubber pad 22 is four centimetres, through fixed the fixing of special wire rope 3 at first carrier plate 2 side, reuse anti-slip hook 9 restrict first carrier plate 2 at concrete box girder 1 tip, make first carrier plate 2 when lifting by crane, wear-resisting wire rope 4 both ends can not stress problem and assemble to the centre, stability when having guaranteed the hoist and mount.

Embodiment two:

Wherein; the gantry crane 7 is a symmetrical double-hanging wire mechanism, the bottom of each hanging wire rope 5 is spliced with one wear-resistant wire rope 4, the second carrier plates 6 are installed at the bottom ends of the special wire ropes 3, the number of the second carrier plates 6 is two, the two second carrier plates 6 are arranged in an axisymmetric mode by taking the center of the gantry crane 7 as the center, according to different hanging wire positions of the gantry crane 7, the second carrier plates 6 are always perpendicular to the position right below the hanging wire of the gantry crane 7, the situation that the second carrier plates 6 slide due to stress during hanging is avoided, and the hanging stability is improved.

Wherein; the second carrier plate 6 includes second steel sheet base 61, and the thickness of second steel sheet base 61 is five centimetres, and the top of second steel sheet base 61 is provided with second rubber pad 62, and the thickness of second rubber pad 62 is four centimetres, sets up second carrier plate 6 and protects concrete box girder 1 bottom, has improved the area of contact of bottom when concrete box girder 1 hoists, further increases friction and the protective force of its bottom.

The working principle is that before use, the rubber pad and the steel plate base are arranged together according to the corresponding hoisting mode of the hoisting tool, then the steel plate base is attached below the bottom plate of the concrete box girder 1, and then the special steel wire rope 3 and the wear-resistant steel wire rope 4 are connected through the shackle 8, so that hoisting work can be started.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a case roof beam hoist device which characterized in that includes: the concrete box girder (1), special wire rope (3) have been cup jointed on the surface of concrete box girder (1), the top of special wire rope (3) is provided with wear-resisting wire rope (4), the top of wear-resisting wire rope (4) is provided with and hangs and draw wire rope (5), hang and draw wire rope (5) to set up in the bottom of portal crane (7), be provided with the butt joint of shackle (8) between special wire rope (3) and wear-resisting wire rope (4).

2. The box girder hoisting device according to claim 1, wherein the wear-resistant steel wire rope (4) comprises a rope core (42), and rubber sleeves (41) are arranged on the outer edges of the rope core (42) and the special steel wire rope (3) in a wrapping mode.

3. The box girder hoisting device according to claim 1, wherein the gantry crane (7) is a single hoisting wire mechanism, the wear-resistant steel wire ropes (4) installed at the bottom ends of the hoisting steel wire ropes (5) are in a forked arrangement, the distances from the two ends of the forked wear-resistant steel wire ropes (4) to the hoisting steel wire ropes (5) are equal, the bottom of the concrete box girder (1) is lapped with the first carrier plate (2), and the special steel wire ropes (3) are fixedly arranged on the side surfaces of the first carrier plate (2).

4. A box girder lifting device according to claim 3, characterized in that the first bearing plate (2) comprises a first steel plate base (21), the thickness of the first steel plate base (21) is five centimeters, an anti-slip hook (9) is installed on one side of the first steel plate base (21) close to the end part of the concrete box girder (1), a first rubber pad (22) is arranged on the top of the first steel plate base (21), the first rubber pad (22) is located between the first steel plate base (21) and the concrete box girder (1), and the thickness of the first rubber pad (22) is four centimeters.

5. The box girder hoisting device according to claim 1, wherein the gantry crane (7) is a symmetrical double-hoisting wire mechanism, the bottom of each hoisting steel wire rope (5) is spliced with one wear-resistant steel wire rope (4), the bottom ends of the special steel wire ropes (3) are provided with two second bearing plates (6), and the two second bearing plates (6) are symmetrically arranged by taking the center of the gantry crane (7) as an axis.

6. The box girder lifting device according to claim 5, wherein the second bearing plate (6) comprises a second steel plate base (61), the thickness of the second steel plate base (61) is five centimeters, a second rubber pad (62) is arranged at the top of the second steel plate base (61), and the thickness of the second rubber pad (62) is four centimeters.