CN118458571B - Steel construction case roof beam hoist device - Google Patents
Steel construction case roof beam hoist device Download PDFInfo
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- CN118458571B CN118458571B CN202410921209.5A CN202410921209A CN118458571B CN 118458571 B CN118458571 B CN 118458571B CN 202410921209 A CN202410921209 A CN 202410921209A CN 118458571 B CN118458571 B CN 118458571B
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- Prior art keywords
- steel structure
- structure box
- box girder
- hanging
- rod
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a steel structure box girder hoisting device, which belongs to the technical field of steel structure box girder construction and comprises first slings, side stretching rods, second slings, guide frames and guide wheels, wherein the top ends of the first slings are connected with hoisting machinery, the side stretching rods are vertically arranged at the bottoms of the outer sides of two first slings on the same side, the second slings are used for bypassing the hoisted steel structure box girders from the bottoms, the guide frames are arranged at the tops of the arranged steel structure box girders, the guide wheels are rotatably arranged at the two sides of the outer sides of the side stretching rods, and the guide wheels are downwards displaced on the slope surfaces of the guide frames to enable the steel structure box girders to be arranged to be close to one side of the arranged steel structure box girders to the opposite side surfaces of the two steel structure box girders. The invention is more convenient for construction operation and has higher safety during construction operation.
Description
Technical Field
The invention relates to the technical field of steel structure box girder construction, in particular to a steel structure box girder hoisting device.
Background
Steel structure box girders, also known as steel box girders, are large bridge structures, typically welded from steel plates, forming hollow box sections. The structural form is often used for the construction of large-span bridges, and can provide higher bearing capacity and span larger spans. The main structure of the steel box girder comprises a top plate, a bottom plate, a web plate, a diaphragm plate, a longitudinal diaphragm plate and the like, which are connected together in an all-welded mode. The top and bottom plates are the primary load bearing structures, while the webs provide additional support and stability. The diaphragm and longitudinal baffles divide the beam into different chambers to increase stiffness and stability.
The production and installation of steel box girders is typically done in a factory and then transported to a construction site for integral assembly and hoisting. The prefabrication production mode can greatly shorten the construction period and improve the construction efficiency. However, the installation of steel box girders requires a high degree of expertise and experience because they are heavy and require hoisting and fixing under specific conditions.
At present, in the process of hoisting and fixing the steel structure box girder, a plurality of steel structure box girders are spliced in the width direction of the bridge to realize bridge deck construction, therefore, when in hoisting operation, a mode of top hoisting operation can only be generally adopted, slings for hoisting the steel structure box girders can only be singly connected to lifting lugs at the tops of the steel structure box girders, and surrounding slings of other types and C-shaped slings have better stability and safety, and can not be effectively applied to the hoisting operation of the steel structure box girders due to limitation of hoisting and fixing forms of the steel structure box girders.
In addition, the single mode that adopts top hoist and mount carries out the hoist and mount operation of steel construction case roof beam, and its stability and the security of hoist and mount all have certain hidden danger, are located aloft after especially the steel construction case roof beam is hoisted, receive inertia and environmental wind force effect this moment, and steel construction case Liang Yifa is given birth to rocking, and at the in-process of butt joint, the steel construction case roof beam of other positions of being impacted easily by the steel construction case roof beam of hoist and mount or platform, have certain hidden danger. Meanwhile, the butt joint operation of the steel structure box girder is inconvenient. In the process of butt joint of steel structure box girders, in order to correct the posture of the steel structure box girders, ground personnel under a bridge generally need to pull one side surface of the steel structure box girders by using ropes, and on-bridge operators pull the other side surface of the steel structure box girders, so that certain potential safety hazards exist, and meanwhile, the correction effect is poor and repeated matching is often needed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a steel structure box girder hoisting device so as to achieve the aim of safe construction.
In order to solve the technical problems, the invention adopts the following technical scheme:
The utility model provides a steel construction case roof beam hoist device, includes first hoist cable, side extension bar, second hoist cable, guide frame and guide wheel, first hoist cable is provided with four, and the bottom of four first hoist cables is used for connecting four lugs of steel construction case roof beam top surface respectively, hoist machinery is connected on the top of first hoist cable, the bottom in the outside of two first hoist cables of same one side is installed perpendicularly to the side extension bar, just the outside end of side extension bar stretches out from the side direction of steel construction case roof beam, the second hoist cable is used for bypassing the steel construction case roof beam by hoist and mount from the bottom, just the second hoist cable is kept away from the one end of side extension bar is connected in the bottom of the first hoist cable of corresponding side, the other end of second hoist cable is detachably connected on the side extension bar, the guide frame is installed at the steel construction case roof beam top that has been installed completely, just the guide frame has towards the vertical plane of waiting to install steel construction case roof beam one side and the domatic of deviating from waiting to install steel construction case roof beam one side, the guide wheel rotates and installs the side slope surface of side extension bar outside end is kept close to the steel construction case roof beam through being close to one side displacement to the steel construction case roof beam that has been installed to one side.
Further, the guide frame comprises a bottom plate used for connecting the top of the installed steel structure box girder and trapezoid plates installed on two sides of the upper surface of the bottom plate in parallel, and a channel used for lifting and moving the side extension rod is arranged between the two trapezoid plates.
Further, one end of the side extension rod is provided with a hanging ring, the side extension rod is provided with a hanging hook for hooking the hanging ring, wherein the hanging hook comprises a supporting part for supporting the hanging ring and a hanging part for hanging the supporting part on the side extension rod, the bottom end of the hanging part is fixedly connected with one end of the supporting part, which faces the first sling, of the supporting part, an included angle between the hanging part and the supporting part is smaller than 90 degrees, and a hanging shaft is arranged at a position above the middle part of the hanging part.
Further, be provided with the locking board that is "匚" shape that can go up and down on the side extension rod, the locking board is open state down, the locking groove has all been seted up to the both sides of supporting part, the medial surface of two bottom of locking board is all interior convex respectively is used for inserting two locking piece in the locking groove.
Further, the locking plate is towards all offered on the both sides face of hanging portion is gone into and is used for the unhooking groove that hanging portion top got into, wherein:
When the locking block is positioned in the locking groove, the supporting part is in a horizontal state, the top end of the hanging part is abutted against the surface of the locking plate, and the unhooking groove is positioned below the top end of the hanging part in the height direction;
When the locking block is separated from the locking groove upwards, the unhooking groove provides a space for the top end of the hanging part to swing outwards by taking the hanging shaft as the center.
Further, the part of the side extension rod, which is positioned at the outer side of the steel structure box girder, is in a cuboid shape, a rod sleeve is sleeved outside the side extension rod, the locking plate can be installed on the rod sleeve in a lifting manner, the suspension shaft is installed on the side surface of the rod sleeve, the distance between the rod sleeve and the guide wheel is larger than the width of the top end of the trapezoid plate and smaller than the width of the bottom end of the trapezoid plate, the width of the outer side end of the rod sleeve is larger than the width of the channel, and the outer side surface of the rod sleeve is set to be parallel to the inner vertical surface of the trapezoid plate.
Further, the top of the rod sleeve is fixedly provided with a limiting plate which is sleeved on the top of the locking plate in an inverted buckle shape, and a pressing spring is arranged between the top end of the locking plate and the inner top wall of the limiting plate.
Further, the side stretching rod is located the inboard direction fixed mounting of pole cover has the outer kicking block that is "匚" shape, the both ends of outer kicking block face respectively the top inboard of two suspension parts, the top inboard of suspension part and the bottom of the outside end of outer kicking block is provided with the inclined plane of looks adaptation, the fixed jacking piece that is provided with in both ends at outer kicking block top, the top of locking plate both sides is provided with the jacking groove, the jacking piece is located the jacking inslot, just the jacking piece is located the outside of outer kicking block, when the jacking groove moved to the inclined plane top of jacking piece, the locking piece moves to the top of locking groove, be provided with the extrapolation spring between the inboard of pole cover and the top of side stretching rod.
Further, the width of the channel is larger than the distance between the two jacking blocks, and the top end of the outer side face of the hanging part is provided with a roller.
Further, the part of the side extension rod, which is contacted with the top of the steel structure box girder, is a cylindrical rod, an elastic telescopic rod is vertically arranged at the inner side end of the cylindrical rod, a ring sleeve is fixedly connected with the inner side surface of the elastic telescopic rod, and the ring sleeve is fixedly sleeved on the first sling.
The invention has the following beneficial effects:
1. When the second sling is matched with the first sling to hoist the steel structure box girder, the stability and safety of the hoisting are improved, and compared with the hoisting mode in the prior art by only relying on the top sling, the hoisting device has the advantages of better effect, higher safety and stronger stability, and is particularly convenient for butt joint operation of the steel structure box girder.
2. The invention is provided with the guide wheels and the guide frame to be matched, so that the automatic position correcting function of the steel structure box girder can be realized, and the invention replaces the mode that ground personnel pull by utilizing ropes and bridge deck operation personnel push and pull by hands in the prior art, and has the advantages of more convenient construction operation and higher safety of construction operation.
3. The invention is provided with the hook, the locking plate, the rod sleeve, the outer jacking block and the jacking block, and can automatically realize unhooking between the hanging ring and the hook in the process of tightly attaching the steel box girders, so that the hanging ring and the second sling can be separated from the two steel box girders in time, further the butt joint between the two steel box girders cannot be interfered, meanwhile, manual intervention is not needed, the construction operation is more convenient, and the effect is more outstanding.
4. The invention is provided with the locking plate, the locking block and the locking groove, the suspension shaft is positioned between the two ends of the suspension part, the locking plate locks the hook, the upper end and the lower end of the hook are limited by the locking plate, and meanwhile, the hanging ring is limited in a closed area, so that the stability and the safety of the hanging can be greatly improved.
5. According to the invention, the elastic telescopic rod and the loop are arranged, so that the first sling can stably support the side extension rod at the top of the steel structure box girder when the steel structure box girder is tensioned in the process of being lifted, and the steel structure box girder is automatically fixed. When the position of the steel structure box girder is corrected through the cooperation of the guide wheels and the guide frame, the side extension rod is limited between the two trapezoid plates, and at the moment, the two trapezoid plates can be stably limited, so that the side extension rod is prevented from being separated from the top of the steel structure box girder.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
FIG. 1 is a schematic view of the steel structure box girder hoisting device of the present invention when hoisting a steel structure box girder;
FIG. 2 is an enlarged view of the invention at A in FIG. 1;
FIG. 3 is a partial schematic view of the present invention of FIG. 1;
FIG. 4 is another view of the present invention from FIG. 3;
FIG. 5 is a partially exploded view of FIG. 3 in accordance with the present invention;
Fig. 6 is a schematic view of a latch plate of the present invention.
In the figure: 1. a first sling; 2. a side extension rod; 3. a second sling; 4. a guide frame; 4.1, a bottom plate; 4.2, a trapezoid board; 5. a guide wheel; 6. a hanging ring; 7. a support part; 8. a hanging part; 9. a locking plate; 10. a locking groove; 11. a locking block; 12. unhooking grooves; 13. a rod sleeve; 14. a limiting plate; 15. pressing down the spring; 16. an outer top block; 17. a jacking block; 18. a jacking groove; 19. an outward pushing spring; 20. a roller; 21. an elastic telescopic rod; 22. and (5) a ring sleeve.
Detailed Description
For a better understanding of the present application, reference will be made to the following description of the application taken in conjunction with the accompanying drawings and examples. The features of the embodiments and examples of the present application may be combined with each other without any conflict.
As shown in fig. 1 to 6, the present invention provides a steel structure box girder hoisting device, which comprises a first sling 1, a side extension rod 2, a second sling 3, a guide frame 4 and a guide wheel 5, wherein the first sling 1 is provided with four lifting lugs, the bottom ends of the four first slings 1 are respectively used for connecting the top surface of the steel structure box girder, the top ends of the first slings 1 are connected with hoisting machinery, the side extension rod 2 is vertically installed at the bottom of the outer sides of the two first slings 1 on the same side, the outer ends of the side extension rod 2 extend from the lateral direction of the steel structure box girder, the second sling 3 is used for bypassing the hoisted steel structure box girder from the bottom, one end of the second sling 3 away from the side extension rod 2 is connected to the bottom end of the first sling 1 on the corresponding side, the other end of the second sling 3 is detachably connected to the side extension rod 2, the guide frame 4 is installed at the top of the installed steel structure box girder, the guide frame 4 is provided with a vertical surface facing one side of the steel structure box girder and a slope facing away from one side of the steel structure box girder, and the guide wheel 5 is pivoted to the opposite side of the steel structure box girder to the two sides of the steel structure box girder, and the guide wheel 5 is moved towards the outer sides of the steel structure box girder.
After the hoisting and fixing of the first steel structure box girder are completed, the guide frame 4 is fixedly installed on the top of the steel structure box girder which is installed before from the hoisting of the second steel structure box girder, and the vertical surface of the guide frame 4 is flush with one side surface of the installed steel structure box girder facing the next steel structure box girder.
When the steel structure box girder to be installed is hoisted, not only the first sling 1 is connected to the lifting lug at the top of the steel structure box girder, but also the second sling 3 is connected to the side extension rod 2 after bypassing the bottom of the steel structure box girder. At this time, the second sling 3 cooperates with the first sling 1 to simultaneously support and limit the steel structure box girder, so that stability and safety of the steel structure box girder during hoisting are improved, and potential safety hazards are reduced.
When the steel structure box girder to be installed is hoisted to the vicinity of the installation position, the guide wheels 5 and the guide frame 4 are used as reference objects, so that the guide wheels 5 move to the slope surface on the outer side of the guide frame 4, then, in the process of lowering the steel structure box girder, the hoisting machine downwards displaces on the slope surface by using the guide wheels 5, and the steel structure box girder to be installed can be pulled to and close to the installed steel structure box Liang Yice, so that when the steel structure box girder is lowered onto a platform, the two steel structure box girders are in a clinging state. Compared with the prior art which relies on manual pushing or pulling of the steel structure box girder, the construction method greatly reduces the difficulty of construction operation and improves the safety and the operation efficiency.
Before the steel structure box girder is placed on the platform, the second sling 3 is separated from the side extension rod 2, so that the second sling 3 is prevented from being clamped by the two steel structure box girders.
In a relatively specific embodiment, the guide frame 4 comprises a bottom plate 4.1 for connecting the top of the installed steel structure box girder and trapezoid plates 4.2 which are installed on two sides of the upper surface of the bottom plate 4.1 in parallel, and a channel for lifting and lowering the side extension rod 2 is arranged between the two trapezoid plates 4.2. When the side extension rod 2 is displaced in the channel, the guide frame 4 has the limiting effect on the side extension rod 2, so that the position of the steel structure box girder can be corrected better, and the stability and safety of hoisting of the steel structure box girder can be improved.
In a preferred embodiment, a hanging ring 6 is arranged at one end of the side stretching rod 2, a hook for hooking the hanging ring 6 is arranged on the side stretching rod 2, the hook comprises a supporting part 7 for supporting the hanging ring 6 and a hanging part 8 for hanging the supporting part 7 on the side stretching rod 2, the bottom end of the hanging part 8 is fixedly connected with one end of the supporting part 7, which faces the first sling 1, of the supporting part 7, an included angle between the hanging part 8 and the supporting part 7 is smaller than 90 degrees, and a hanging shaft is arranged at a position above the middle part of the hanging part 8.
The connection part of the hanging part 8 and the supporting part 7 faces the first sling 1, and one end of the supporting part 7, which is away from the hanging part 8, is an inlet and an outlet for the hanging ring 6 to enter the separation hook. When the whole hook rotates to one side of the first sling 1 by taking the suspension shaft as the center, the supporting part 7 gradually removes the supporting force on the hanging ring 6, and when one end of the supporting part 7 far away from the suspension part 8 is in a state of inclining downwards, under the self gravity action of the second sling 3 and the hanging ring 6, the hanging ring 6 slides off from the supporting part 7, so that the unhooking process of the hanging ring 6 and the hook is realized. After the hanging ring 6 is separated from the hook, under the action of self gravity, the hanging ring 6 and the second hanging rope 3 can leave from the area between the two steel structure box girders and move to one side of the hung steel structure box girders far away from the guide frame 4, so that the second hanging rope 3 does not interfere with the alignment and installation of the steel structure box girders.
In the preferred embodiment, a lock plate 9 which can be lifted and lowered and is in a 匚 shape is arranged on the side extension rod 2, the lock plate 9 is in an open downward state, lock grooves 10 are respectively formed in two sides of the supporting portion 7, and lock blocks 11 respectively inserted into the two lock grooves 10 are respectively arranged on inner side surfaces of two bottom ends of the lock plate 9 in an inward convex mode.
When the locking plate 9 is at the lowest position, the locking block 11 is inserted into the locking groove 10, at this time, the hook can not only be fixed by the cooperation of the locking block 11 and the locking groove 10, so that the hook can not rotate, but also the locking plate 9 can block the entrance of the hanging ring 6 into or out of the hook, the hanging ring 6 is limited in a closed area, and the state that the second sling 3 always stably supports the steel structure box girder during the hoisting of the steel structure box girder can be improved.
In a preferred embodiment, both sides of the locking plate 9 facing the hanging portion 8 are provided with unhooking grooves 12 for the top end of the hanging portion 8 to enter, wherein:
when the locking block 11 is positioned in the locking groove 10, the supporting part 7 is in a horizontal state, the top end of the hanging part 8 is abutted on the surface of the locking plate 9, and the unhooking groove 12 is positioned below the top end of the hanging part 8 in the height direction; at this time, the upper and lower ends of the hook are effectively limited by the locking plate 9, so that the hook has stronger stability and supporting effect when hanging the hanging ring 6.
When the lock block 11 is disengaged upward from the lock groove 10, the unhooking groove 12 provides a space for the top end of the hanging portion 8 to swing outward about the hanging shaft. When the hook rotates to unhook the hanging ring 6, the top end of the hanging part 8 enters the unhook groove 12.
In a relatively specific embodiment, the part of the side extension rod 2 located outside the steel structure box girder is cuboid, the rod sleeve 13 is sleeved outside the side extension rod 2, the locking plate 9 is installed on the rod sleeve 13 in a lifting mode, the suspension shaft is installed on the side face of the rod sleeve 13, the distance between the rod sleeve 13 and the guide wheel 5 is larger than the top end width of the trapezoid plate 4.2 and smaller than the bottom end width of the trapezoid plate 4.2, the width of the outer end of the rod sleeve 13 is larger than the width of the channel, and the outer side face of the rod sleeve 13 is arranged to be parallel to the inner vertical face of the trapezoid plate 4.2.
When the guide wheel 5 is matched with the guide frame 4 to pull the hoisted steel structure box girder to one side of the installed steel structure box girder, the rod sleeve 13 can contact the vertical surface of the trapezoid plate 4.2 towards one side surface of the guide frame 4, and the rod sleeve 13 can displace to one side of the second sling 3 under the action of a reaction force, so that the lifting ring 6 can be ensured to be always positioned in the area between the two steel structure box girders, and after the lifting ring 6 is unhooked from a hook, the lifting ring 6 and the second sling 3 can smoothly leave from the area between the two steel structure box girders.
The top of the rod sleeve 13 is fixedly provided with a limiting plate 14 which is sleeved on the top of the locking plate 9 in an inverted buckle shape, and a pressing spring 15 is arranged between the top end of the locking plate 9 and the inner top wall of the limiting plate 14. By providing the pressing spring 15, an elastic force is provided to the locking plate 9 so that the locking piece 11 is stably inserted into the locking groove 10. And the pressing spring 15 is compressed in the course of the upward displacement of the locking plate 9 such that the locking piece 11 is disengaged from the locking groove 10.
In the preferred embodiment, the side stretching rod 2 is fixedly arranged in the inner side direction of the rod sleeve 13, an outer jacking block 16 in a 匚 shape is fixedly arranged at the inner side direction of the rod sleeve 13, two ends of the outer jacking block 16 face to the inner sides of the top ends of the two hanging parts 8 respectively, an adaptive inclined plane is arranged at the inner side of the top ends of the hanging parts 8 and the bottom of the outer side ends of the outer jacking block 16, jacking blocks 17 are fixedly arranged at the two ends of the top of the outer jacking block 16, jacking grooves 18 are arranged at the tops of two sides of the locking plate 9, the jacking blocks 17 are positioned in the jacking grooves 18, the jacking blocks 17 are positioned at the outer sides of the outer jacking blocks 16, when the jacking grooves 18 move to the inclined plane tops of the jacking blocks 17, the locking blocks 11 move to the upper side of the locking grooves 10, and an extrapolation spring 19 is arranged between the inner side of the rod sleeve 13 and the top of the side stretching rod 2.
Since the outer jacking block 16 is fixedly installed on the side extension rod 2, in the process of displacing the rod sleeve 13 to the first sling 1 side, the jacking block 17 firstly makes the locking plate 9 displace upwards through the upper jacking groove 18, and then makes the locking block 11 separate from the locking groove 10, and then, the end part of the outer jacking block 16 presses down the top end of the hanging part 8, so that the hook rotates around the hanging shaft, and the hanging ring 6 is separated from the supporting part 7.
The width of the channel is greater than the distance between the two jacking blocks 17 and the top of the outer side of the suspension 8 is provided with rollers 20.
In the preferred embodiment, the part of the side extension rod 2 contacting the top of the steel structure box girder to be installed is a cylindrical rod, the inner side end of the cylindrical rod is vertically provided with an elastic telescopic rod 21, the inner side surface of the elastic telescopic rod 21 is fixedly connected with a loop 22, the loop 22 is fixedly sleeved on the first sling 1, and when the first sling 1 is in a tightening state, the elastic telescopic rod 21 is in an inclined state and is compressed. In the process of lifting the steel structure box girder, when the first sling 1 is tightened, the cylindrical rod of the side extension rod 2 is stably abutted to the top of the steel structure box girder through the two loop 22 and the elastic telescopic rod 21, so that the side extension rod 2 is kept to have good stability.
The scope of the present invention is not limited to the above embodiments, but various modifications and alterations of the present invention will become apparent to those skilled in the art, and any modifications, improvements and equivalents within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (8)
1. A steel construction case roof beam hoist device, its characterized in that: including first hoist cable (1), side extension rod (2), second hoist cable (3), guide frame (4) and guide wheel (5), first hoist cable (1) are provided with four, and the bottom of four first hoist cables (1) is used for connecting four lugs of steel construction case roof beam top surface respectively, hoist machinery is connected on the top of first hoist cable (1), the bottom in the outside of two first hoist cables (1) of same one side is installed perpendicularly to side extension rod (2), just the lateral direction of steel construction case roof beam is followed to the outside end of side extension rod (2), second hoist cable (3) are used for following the bottom and walk around the steel construction case roof beam by the hoist and mount, just second hoist cable (3) are kept away from the bottom of the one end of side extension rod (2) is connected in the bottom of the first hoist cable (1) of corresponding side, the other end of the second sling (3) is detachably connected to the side extension rod (2), the guide frame (4) is installed at the top of the installed steel structure box girder, the guide frame (4) is provided with a vertical surface facing one side of the steel structure box girder to be installed and a slope surface deviating from one side of the steel structure box girder to be installed, the guide wheels (5) are rotatably installed at two sides of the outer side end of the side extension rod (2), and the guide wheels (5) enable the steel structure box girder to be installed to approach one side of the installed steel structure box girder to the opposite side surfaces of the two steel structure box girders by downwards displacing on the slope surface;
One end of the side extension rod (2) is provided with a hanging ring (6), the side extension rod (2) is provided with a hook for hooking the hanging ring (6), wherein the hook comprises a supporting part (7) for supporting the hanging ring (6) and a hanging part (8) for hanging the supporting part (7) on the side extension rod (2), the bottom end of the hanging part (8) is fixedly connected with one end, facing the first sling (1), of the supporting part (7), an included angle between the hanging part (8) and the supporting part (7) is smaller than 90 degrees, and a hanging shaft is arranged at a position above the middle part of the hanging part (8);
The side extension rod (2) is provided with a lifting locking plate (9) in a 匚 shape, the locking plate (9) is in an open downward state, locking grooves (10) are formed in two sides of the supporting part (7), and locking blocks (11) which are respectively inserted into the two locking grooves (10) are respectively arranged on inner side surfaces of two bottom ends of the locking plate (9) in an inward convex mode;
the two side surfaces of the locking plate (9) facing the hanging part (8) are provided with unhooking grooves (12) used for the top end of the hanging part (8) to enter.
2. The steel structure box girder hoisting device according to claim 1, wherein the guide frame (4) comprises a bottom plate (4.1) for connecting the top of the installed steel structure box girder and trapezoid plates (4.2) arranged on two sides of the upper surface of the bottom plate (4.1) in parallel, and a channel for lifting and lowering the side extension rod (2) is arranged between the two trapezoid plates (4.2).
3. The steel structure box girder hoisting device according to claim 2, wherein when the locking block (11) is positioned in the locking groove (10), the supporting part (7) is in a horizontal state, the top end of the hanging part (8) is abutted on the surface of the locking plate (9), and the unhooking groove (12) is positioned below the top end of the hanging part (8) in the height direction;
When the locking block (11) is separated from the locking groove (10) upwards, the unhooking groove (12) provides a space for the top end of the hanging part (8) to swing outwards by taking the hanging shaft as the center.
4. A steel structure box girder lifting device according to claim 3, characterized in that the part of the side extension rod (2) located at the outer side of the steel structure box girder is cuboid, a rod sleeve (13) is sleeved outside the side extension rod (2), the locking plate (9) can be installed on the rod sleeve (13) in a lifting manner, the suspension shaft is installed on the side surface of the rod sleeve (13), the distance between the rod sleeve (13) and the guide wheel (5) is larger than the top end width of the trapezoid plate (4.2) and smaller than the bottom end width of the trapezoid plate (4.2), the width of the outer side end of the rod sleeve (13) is larger than the width of the channel, and the outer side surface of the rod sleeve (13) is set to be a plane parallel to the inner vertical surface of the trapezoid plate (4.2).
5. The steel structure box girder hoisting device according to claim 4, wherein a limiting plate (14) sleeved on the top of the locking plate (9) in an inverted buckle shape is fixedly arranged on the top of the rod sleeve (13), and a pressing spring (15) is arranged between the top end of the locking plate (9) and the inner top wall of the limiting plate (14).
6. The steel structure box girder hoisting device according to claim 5, wherein the side extension rod (2) is located in the inner side direction of the rod sleeve (13), an outer jacking block (16) which is in a '匚' shape is fixedly installed, two ends of the outer jacking block (16) face towards the inner sides of the top ends of the two hanging parts respectively, the inner sides of the top ends of the hanging parts and the bottom of the outer side ends of the outer jacking block (16) are provided with adaptive inclined planes, two ends of the top of the outer jacking block (16) are fixedly provided with jacking blocks (17), the tops of two sides of the locking plate (9) are provided with jacking grooves (18), the jacking blocks (17) are located in the jacking grooves (18), the jacking blocks (17) are located on the outer sides of the outer jacking blocks (16), when the jacking grooves (18) move to the inclined planes of the jacking blocks (17), the locking blocks (11) move to the upper sides of the locking grooves (10), and the tops of the rod sleeve (13) are outwards pushed by the springs, and the tops of the inner sides of the rod sleeve (19) are outwards pushed.
7. A steel structure box girder hoisting device according to claim 6, characterized in that the width of the channel is larger than the distance between two jacking blocks (17), and that the top of the outer side of the suspension part (8) is provided with rollers (20).
8. The steel structure box girder hoisting device according to any one of claims 1 to 7, wherein the part of the side extension rod (2) contacting the top of the steel structure box girder is a cylindrical rod, an elastic telescopic rod (21) is vertically installed at the inner side end of the cylindrical rod, a ring sleeve (22) is fixedly connected to the inner side surface of the elastic telescopic rod (21), and the ring sleeve (22) is fixedly sleeved on the first sling (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410921209.5A CN118458571B (en) | 2024-07-10 | 2024-07-10 | Steel construction case roof beam hoist device |
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| CN202410921209.5A CN118458571B (en) | 2024-07-10 | 2024-07-10 | Steel construction case roof beam hoist device |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2007200211B1 (en) * | 2007-01-18 | 2007-04-26 | Innovative Construction Techniques Pty Ltd | A Quick Release Lifting Hook |
| CN115506222A (en) * | 2022-10-31 | 2022-12-23 | 湖南交通国际经济工程合作有限公司 | Large-span steel box girder for overpass highway and construction process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214219335U (en) * | 2020-12-30 | 2021-09-17 | 苏州造丽新型建材有限公司 | Stable box girder with quick-assembly structure for large overhead |
| CN216190342U (en) * | 2021-11-10 | 2022-04-05 | 中交路桥建设有限公司 | Small-size precast beam hoist and mount flange board protection utensil |
| CN220976261U (en) * | 2023-10-10 | 2024-05-17 | 陕西永华浩宇建筑工程有限公司 | Steel box girder hoisting sling |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2007200211B1 (en) * | 2007-01-18 | 2007-04-26 | Innovative Construction Techniques Pty Ltd | A Quick Release Lifting Hook |
| CN115506222A (en) * | 2022-10-31 | 2022-12-23 | 湖南交通国际经济工程合作有限公司 | Large-span steel box girder for overpass highway and construction process thereof |
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