CN216665066U - Auxiliary turning-over device for hoisting large-span curve truss - Google Patents
Auxiliary turning-over device for hoisting large-span curve truss Download PDFInfo
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- CN216665066U CN216665066U CN202122516618.1U CN202122516618U CN216665066U CN 216665066 U CN216665066 U CN 216665066U CN 202122516618 U CN202122516618 U CN 202122516618U CN 216665066 U CN216665066 U CN 216665066U
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Abstract
The utility model relates to an auxiliary turning-over device for hoisting a large-span curved truss, belonging to the technical field of large-span steel structure construction. The truss support device mainly comprises a chord member hoop from top to bottom, a middle connecting piece, a wheel carrier, a wheel shaft and a wheel body, wherein two ends of the wheel shaft are respectively fixed with a lateral stay bar which is arranged above the rear outer side and is used for being connected with a truss. The auxiliary turning-over device provided by the utility model has the advantages that the truss always has a supporting point in contact with the ground in the hoisting and turning-over process, the stability of the truss in the hoisting process is improved, the operation can be completed only by two cranes in the hoisting and turning-over process of the truss, the problems of difficult cooperation of a plurality of cranes and large workload are greatly reduced, the safety in the construction process is improved, the hoisting difficulty is further reduced, the hoisting efficiency is improved, the construction period is saved, the device can be disassembled and reused after being used, the energy is saved, the environment is protected, the production cost is controlled, and the device is worthy of popularization and use.
Description
Technical Field
The utility model belongs to the technical field of building construction, particularly relates to the technical field of large-span steel structure construction, and particularly relates to an auxiliary turning-over device for hoisting a large-span curved truss.
Background
The large-span steel structure is one of the important marks for measuring the national building technology level, and the steel structure becomes one of the mainstream structures in the building field. The space steel pipe truss structure system is an important member in a large-span space structure, and it is particularly important to adopt a reasonable construction mode to ensure safe and efficient construction. The installation technology of the large-span steel structure mainly comprises the following steps: the method comprises the following steps of high-altitude in-situ installation technology, sliding construction technology and lifting (jacking) technology, wherein the lifting (jacking) technology needs to undergo the process of turning over to be in place to be in a lifting posture aiming at the lifting of a large-span heavy truss which is horizontally assembled.
At present, a hoisting method of double-machine lifting or double-machine lifting and single-machine auxiliary turning is mostly adopted in the process of turning the large-span space pipe truss from assembling to hoisting. The method comprises the following steps: the two cranes respectively lift one side of the truss, and the truss rotates by taking a chord member at one side as an axis along with the lifting of the lifting ropes until the turning is completed. If a curved truss with large span and self-weight is encountered, a third crane is added to assist in turning over, so that the posture of the truss in the air in the turning-over process is ensured. The hoisting method is adopted for construction, and the following defects generally exist:
1) the large-span curve type truss has the characteristics of large span, great self weight, curve trend and the like, and is easy to be interfered by various factors when a plurality of lifting cranes are used for lifting, so that safety accidents occur.
2) The synchronous hoisting of a plurality of cranes has great difficulty, and if the hoisting process is not matched properly, the truss is easy to deflect or even turn over.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides an auxiliary turning device for hoisting a large-span curved truss.
The utility model is realized by the following technical scheme:
the utility model provides an assist turning-over device for hoist and mount of large-span curved truss, including the middle part connecting piece, the top of middle part connecting piece is fixed with the chord member staple bolt, the bottom mounting has the wheel carrier, be fixed with the shaft on the wheel carrier, the wheel body is installed through the bearing to the epaxial, the outside to the wheel carrier is established to the both ends epitaxy of shaft, be fixed with a side direction vaulting pole on the epitaxial section at shaft both ends respectively, the side direction vaulting pole that is located the shaft left end inclines to the upper left side backward and sets up, the side direction vaulting pole that is located the shaft right-hand member inclines to the upper right side backward and sets up, the rear end tip of side direction vaulting pole is provided with and is used for being connected fixed flange with the interim steel pipe on the curved truss chord.
Furthermore, the middle connecting piece comprises a connecting frame body and a first vertical supporting plate, the connecting frame body is formed by fixing an upper connecting plate, a lower connecting plate, a left connecting plate and a right connecting plate, the vertical section of the connecting frame body is in an inverted isosceles trapezoid shape, the first vertical supporting plate is fixed in the connecting frame body, the first vertical supporting plate is in the inverted isosceles trapezoid shape, and the four plate edges of the first vertical supporting plate are respectively vertically fixed with the four connecting plates of the connecting frame body.
Further, the chord member hoop comprises a bottom plate, a second vertical supporting plate is vertically fixed on the bottom plate, a hoop body is fixed on the top plate edge of the second vertical supporting plate, the hoop body is divided into a lower hoop body and an upper hoop body, the upper hoop body and the lower hoop body are detachably connected through a high-strength bolt, and the cross section shape of the hoop body is matched with that of the lower chord member of the curve type truss.
Furthermore, a plurality of reinforcing rib plates are uniformly distributed between the bottom plate and the hoop body and positioned on two sides of the second vertical supporting plate respectively, and the reinforcing rib plates are fixedly connected with the hoop body, the second vertical supporting plate and the bottom plate respectively; the outer surface of the upper half hoop body of the hoop body is uniformly and fixedly provided with a plurality of reinforcing ribs.
Furthermore, the wheel carrier comprises a third vertical supporting plate, a top plate is fixed to the top plate edge of the third vertical supporting plate, side plates are fixed to the two side plate edges of the third vertical supporting plate respectively, the wheel shaft is fixed between the bottoms of the two side plates, and the wheel body is rotatably installed on the wheel shaft section between the two side plates through a bearing.
The auxiliary turning-over device is scientific in design, reasonable in structure, convenient to operate, practical and efficient, the truss is always provided with a supporting point in contact with the ground in the hoisting and turning-over process due to the use of the auxiliary turning-over device, the stability of the truss in the hoisting and turning-over process is improved, operation can be completed only by two cranes in the hoisting and turning-over process of the truss, the problems of difficulty in cooperation of multiple cranes and large workload are greatly reduced, the safety of the construction process is improved, the hoisting difficulty is reduced, the hoisting efficiency is improved, the construction period is saved, the device can be disassembled and reused after being used, energy is saved, environment is protected, the production cost is controlled, and the device is worthy of popularization and use.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate exemplary embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.
Fig. 1 is a schematic structural diagram of a turning-over assisting device.
Fig. 2 is a schematic structural view of a chord hoop in the turning-over assisting device.
Fig. 3 is an exploded view of fig. 2.
Fig. 4 is a schematic structural diagram of a middle connecting piece in the turnover assisting device.
Fig. 5 is an exploded view of fig. 4.
Fig. 6 is a schematic structural view of a wheel frame, a wheel shaft and a wheel body in the turning-over assisting device.
Fig. 7 is an exploded view of fig. 6.
Fig. 8 is a schematic view of the use of the turnover assisting device.
Fig. 9 is a schematic view of the connection between the turning-over assisting device and the curved truss.
Fig. 10 is a schematic view of the process of turning over the curved truss by using the auxiliary turning over device.
In the figure: a-a curve type truss, b-an assembly jig frame, c-an auxiliary turnover device, d-a crawler crane and e-a steel wire rope;
1-chord hoops, 1-1-bottom plates, 1-2-second vertical support plates, 1-3-lower half hoop bodies, 1-4-upper half hoop bodies, 1-5-reinforcing rib plates, 1-6-reinforcing ribs, 2-high-strength bolts, 3-middle connecting pieces, 3-1-connecting frame bodies, 3-2-first vertical support plates, 3-3-connecting plates, 4-wheel shafts, 5-wheel bodies, 6-lateral support rods, 7-connecting flanges, 8-temporary steel pipes, 9-wheel carriers, 9-1-third vertical support plates, 9-2-top plates and 9-3-side plates.
Detailed Description
In order that those skilled in the art will better understand the present invention, a more complete and complete description of the present invention is provided below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The utility model provides an auxiliary turning-over device for hoist and mount of large-span curve type truss, as shown in figure 1, including middle part connecting piece 3, the top of middle part connecting piece 3 is fixed with chord member staple bolt 1, the bottom is fixed with the wheel carrier 9, be fixed with the shaft 4 on the wheel carrier 9, install wheel body 5 through the bearing on the shaft 4, the outside extension of the both ends of shaft 4 is established to the outside of wheel carrier 9, be fixed with a side direction vaulting pole 6 respectively on the extension section at the both ends of shaft 4, the side direction vaulting pole 6 that is located the left end of shaft 4 inclines to the upper left back, the side direction vaulting pole 6 that is located the right-hand member of shaft 4 inclines to the upper right back, the rear end tip of side direction vaulting pole 6 is provided with and is used for being connected the flange 7 fixed with interim steel pipe 8 on the curve type truss a chord member.
As shown in fig. 4 and 5, the middle connecting member 3 includes a connecting frame body 3-1 and a first vertical supporting plate 3-2, the connecting frame body is formed by fixing four connecting plates 3-3, namely, an upper connecting plate, a lower connecting plate, a left connecting plate and a right connecting plate, the vertical section of the connecting frame body 3-1 is in an inverted isosceles trapezoid shape, the first vertical supporting plate 3-2 is fixed in the connecting frame body 3-1, the first vertical supporting plate 3-2 is in an inverted isosceles trapezoid shape, and four plate edges of the first vertical supporting plate 3-2 are respectively vertically fixed with the four connecting plates 3-3 of the connecting frame body 3-1.
As shown in fig. 2 and fig. 3, the chord hoop 1 comprises a bottom plate 1-1, a second vertical support plate 1-2 is vertically fixed on the bottom plate 1-1, a hoop body is fixed on the top plate edge of the second vertical support plate 1-2, the hoop body is divided into a lower semi-hoop body 1-3 and an upper semi-hoop body 1-4, the upper semi-hoop body 1-3 and the lower semi-hoop body 1-4 are detachably connected through a high-strength bolt 2, and the cross section of the hoop body is matched with the cross section of the lower chord of the curved truss a; a plurality of reinforcing rib plates 1-5 are uniformly distributed between the bottom plate 1-1 and the hoop body and positioned at two sides of the second vertical supporting plate 1-2, and the reinforcing rib plates 1-5 are fixedly connected with the lower half hoop body 1-3, the second vertical supporting plate 1-2 and the bottom plate 1-1 respectively; the outer surface of the upper half hoop body 1-4 of the hoop body is uniformly and fixedly provided with a plurality of reinforcing ribs 1-6.
As shown in figures 6 and 7, the wheel frame 9 comprises a third vertical supporting plate 9-1, a top plate 9-2 is fixed on the top plate edge of the third vertical supporting plate 9-1, side plates 9-3 are respectively fixed on the two side plate edges of the third vertical supporting plate 9-1, the wheel shaft 4 is fixed between the bottoms of the two side plates 9-3, and the wheel body 5 is rotatably mounted on the shaft section of the wheel shaft 4 between the two side plates 9-3 through a bearing.
The connecting plate 3-3 at the upper part of the middle connecting piece 3 is fixedly connected with the bottom plate 1-1 in the chord hoop 1, and the connecting plate 3-3 at the lower part of the middle connecting piece 3 is fixedly connected with the top plate 9-2 in the wheel carrier 9.
The use method of the device comprises the following steps:
1) an assembly jig frame b is arranged at a position in place, a curve truss a in a lying state is assembled on the assembly jig frame b, the curve truss a is a concave inverted triangle three-dimensional steel pipe truss which is mainly formed by assembling two upper chord members, a lower chord member and a plurality of web members, and the overall appearance of the curve truss is in a catenary shape; the auxiliary turning-over device c is arranged in the middle of the assembly jig frame b, the chord hoop 1 of the auxiliary turning-over device c is clamped and fixed at the middle point of the lower chord of the curved truss a, the wheel body 5 of the auxiliary turning-over device c is supported on the ground in a rolling manner, and two lateral support rods 6 of the auxiliary turning-over device c are respectively connected and fixed with temporary steel pipes 8 on the chord of the curved truss a through connecting flanges 7 on the lateral support rods, as shown in fig. 8 and 9.
2) The method comprises the steps of adopting a double-crane hoisting method to hoist a curved truss a, preparing two crawler cranes d, standing the crawler cranes d on the same side of the curved truss a and respectively arranging the crawler cranes d on two sides of the center line of the curved truss a, and respectively connecting and fixing steel wire ropes e on the two crawler cranes d with an upper chord of the curved truss a and respectively arranging the connecting and fixing points on two sides of the midpoint of the upper chord.
3) And the two crawler cranes d simultaneously lift the curved truss a, when the lower chord of the curved truss a just leaves the assembly jig frame b, the auxiliary turnover device c rotates and is in a state of supporting the curved truss a, and then the assembly jig frame b is removed.
4) The two crawler cranes d continue to vertically lift the curved truss a to drive the auxiliary turning device c supported on the ground to slide and rotate the curved truss a, at the moment, the vertical load in the state is turned over along with the curved truss a, the included angle between the auxiliary turning device c and the ground is smaller and smaller, the shared vertical load is gradually reduced, the curved truss a is gradually turned over under the lifting of the crane, and the whole turning over process is as shown in fig. 10.
The technical solutions in the embodiments of the present invention are clearly and completely described above, and the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (5)
1. The utility model provides an supplementary turning device that is used for hoist and mount of large-span curve type truss which characterized in that: including the middle part connecting piece, the top of middle part connecting piece is fixed with the chord member staple bolt, the bottom mounting has the wheel carrier, be fixed with the shaft on the wheel carrier, install the wheel body through the bearing on the shaft, the outside to the extension of both ends of shaft is established to the wheel carrier, be fixed with a side direction vaulting pole on the extension section at shaft both ends respectively, the side direction vaulting pole that is located the shaft left end sets up to the upper left side slope backward, the side direction vaulting pole that is located the shaft right-hand member sets up to the upper right side slope backward, the rear end tip of side direction vaulting pole is provided with and is used for being connected the flange fixed with the interim steel pipe on the curved truss chord member.
2. The auxiliary turning-over device for hoisting the large-span curved truss as claimed in claim 1, wherein: the middle connecting piece comprises a connecting frame body and a first vertical supporting plate, the connecting frame body is formed by fixing an upper connecting plate, a lower connecting plate, a left connecting plate and a right connecting plate, the vertical section of the connecting frame body is in an inverted isosceles trapezoid shape, the first vertical supporting plate is fixed in the connecting frame body, the first vertical supporting plate is in an inverted isosceles trapezoid shape, and four plate edges of the first vertical supporting plate are respectively vertically fixed with the four connecting plates of the connecting frame body.
3. The auxiliary turning-over device for hoisting the large-span curved truss according to claim 1, wherein: the chord member hoop comprises a bottom plate, a second vertical supporting plate is vertically fixed on the bottom plate, a hoop body is fixed on the top plate edge of the second vertical supporting plate and is divided into a lower hoop body and an upper hoop body, the upper hoop body and the lower hoop body are detachably connected through a high-strength bolt, and the cross section shape of the hoop body is matched with that of the lower chord member of the curve type truss.
4. The auxiliary turning-over device for hoisting the large-span curved truss according to claim 3, wherein: a plurality of reinforcing rib plates are uniformly distributed between the bottom plate and the hoop body and positioned on two sides of the second vertical supporting plate respectively, and the reinforcing rib plates are fixedly connected with the hoop body, the second vertical supporting plate and the bottom plate respectively; and a plurality of reinforcing ribs are uniformly distributed and fixed on the outer surface of the upper half hoop body of the hoop body.
5. The auxiliary turning-over device for hoisting the large-span curved truss according to claim 1, wherein: the wheel carrier comprises a third vertical supporting plate, a top plate is fixed to the top plate edge of the third vertical supporting plate, side plates are fixed to the two side plate edges of the third vertical supporting plate respectively, the wheel shaft is fixed between the bottoms of the two side plates, and the wheel body is rotatably installed on the wheel shaft section between the two side plates through a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122516618.1U CN216665066U (en) | 2021-10-19 | 2021-10-19 | Auxiliary turning-over device for hoisting large-span curve truss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122516618.1U CN216665066U (en) | 2021-10-19 | 2021-10-19 | Auxiliary turning-over device for hoisting large-span curve truss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216665066U true CN216665066U (en) | 2022-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122516618.1U Active CN216665066U (en) | 2021-10-19 | 2021-10-19 | Auxiliary turning-over device for hoisting large-span curve truss |
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| CN (1) | CN216665066U (en) |
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- 2021-10-19 CN CN202122516618.1U patent/CN216665066U/en active Active
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