CN217708661U - Steel approach bridge quick hoisting system - Google Patents
Steel approach bridge quick hoisting system Download PDFInfo
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- CN217708661U CN217708661U CN202220864054.2U CN202220864054U CN217708661U CN 217708661 U CN217708661 U CN 217708661U CN 202220864054 U CN202220864054 U CN 202220864054U CN 217708661 U CN217708661 U CN 217708661U
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- hoisting system
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Abstract
The application discloses quick hoist and mount system of steel approach bridge, it includes the floating crane ship, the floating crane ship is including floating platform and the crane that sets up on floating platform, the crane includes davit and the rotatory hoist of hoist and mount on the davit, rotatory hoist is including being used for the crossbeam of being connected with the back of the body cable that sets up on the davit, the lower surface of crossbeam rotates and is connected with the lifting hook, it is used for ordering about bridge segment pivoted drive arrangement to be provided with on the floating platform. This application orders about the bridge segment through utilizing drive arrangement and rotates to make the floating crane ship under the circumstances that the bow deflected towards the bank, still can put forward the orientation of bridge segment, thereby under the circumstances of avoiding the floating crane cluster to touch the reef, realize striding the quick hoist and mount of coast bridge segment.
Description
Technical Field
The application relates to the technical field of bridge hoisting, in particular to a steel approach bridge quick hoisting system.
Background
At present, steel approach bridges for marine transportation are generally constructed in sections by adopting a hoisting mode, and in order to ensure the safety and smoothness of construction, a transport ship and a floating crane ship which are matched with the length and the weight of a bridge section are generally selected. However, in the process of hoisting the cross-shore bridge segment, due to the existence of the submerged reef, the floating crane ship can only stop in the deep water area to avoid the reef touch of the floating crane ship, so that the floating crane ship cannot be positioned in the middle of the two piers, and the cross-shore bridge segment is difficult to hoist. Therefore, improvements are needed.
SUMMERY OF THE UTILITY MODEL
In order to provide the hoist and mount efficiency of crossing coast bridge section, this application provides a quick hoist and mount system of steel approach bridge.
The application provides a quick hoist and mount system of steel approach bridge adopts following technical scheme:
the utility model provides a quick hoist and mount system of steel approach, includes the floating pontoon, the floating pontoon includes floating platform and the lifting machine of setting on floating platform, the lifting machine includes davit and the rotatory hoist of hoist and mount on the davit, rotatory hoist is including being used for the crossbeam of being connected with the back of the body cable that sets up on the davit, the lower surface of crossbeam rotates and is connected with the lifting hook, the last drive arrangement who is used for ordering about bridge segment pivoted that is provided with of floating platform.
By adopting the technical scheme, after the floating crane ship carries the bridge section to move to a construction area, the orientation of the floating crane ship is adjusted to enable the head of the floating crane ship to face the shore, and then the floating crane ship is anchored and stabilized. And then adjusting the elevation angle of the suspension arm to enable the middle of the bridge section to be positioned between the two piers. Because the lifting hook rotates with the crossbeam to be connected, consequently accessible drive arrangement orders about the bridge section and rotates until the bridge section of just setting, then transfer the bridge section can. Under the condition of avoiding the floating crane ship from striking the reef, the hoisting efficiency of the cross-shore bridge section is obviously improved.
Preferably, the driving device comprises two winches arranged on the floating platform, wherein the pull rope of one winch is connected with one end of the bridge section, and the pull rope of the other winch is connected with the other end of the bridge section.
By adopting the technical scheme, when the bridge section is required to rotate, one winch winds up the pull rope, the other winch loosens the pull rope, and the bridge section can be driven to stably rotate.
Preferably, the lifting device further comprises a carrying pole beam hoisted below the lifting hook, the lower surface of the carrying pole beam is fixedly connected with four slings, and the slings are used for being connected with the bridge section.
Through adopting above-mentioned technical scheme, the setting of shoulder pole roof beam for the hoist cable keeps vertical, thereby retrains the atress of hoisting point, makes the bridge section more steady at the hoist and mount in-process.
Preferably, the carrying pole beam is arranged in a square frame shape, and the four suspension cables are respectively positioned at four corners of the carrying pole beam.
By adopting the technical scheme, the carrying pole beam is arranged to be square frame-shaped and matched with the shape of the bridge section, so that the position of the lifting point is conveniently determined, and the bridge section is more stable in the lifting process.
Preferably, a reinforcing rod is fixedly connected between a pair of opposite side frames of the shoulder pole beam.
By adopting the technical scheme, the structural strength of the carrying pole beam is increased, so that the carrying pole beam is not easy to deform.
Preferably, the top of the bridge section is fixedly connected with a fixing ring used for being connected with a sling, and the sling passes through the fixing ring and then is locked and connected through a steel wire rope lock catch.
By adopting the technical scheme, the sling is connected and fastened with the bridge section.
Preferably, the lifting hook comprises a connecting rod rotatably connected with the cross beam, and two hooks are fixedly connected to the circumferential surface of the connecting rod.
By adopting the technical scheme, the two cable chains positioned at the same end of the shoulder pole beam are hung on the same hook, so that the stress of the lifting appliance is uniform, and the bridge section is kept stable in the lifting process.
Preferably, one end of the connecting rod inserted into the cross beam is fixedly sleeved with a limiting ring, and a cavity for accommodating the limiting ring is reserved in the cross beam.
Through adopting above-mentioned technical scheme for the connecting rod is more firm with being connected of crossbeam.
Drawings
FIG. 1 is a schematic overall structure of the present application;
fig. 2 is a schematic structural view of a rotary spreader in the present application;
fig. 3 is an enlarged schematic view of a in fig. 1 of the present application.
Description of reference numerals:
1. a floating platform; 2. a suspension arm; 3. rotating the lifting appliance; 31. a cross beam; 32. fixing the rod; 33. a hook; 331. a connecting rod; 332. hooking; 333. a limiting ring; 34. a groove; 35. a box cover; 4. a shoulder pole beam; 5. a reinforcing rod; 6. a chain; 7. a sling; 8. a bridge section; 9. a fixing ring; 10. locking the steel wire rope; 11. a winch; 12. a back guy cable.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses quick hoist and mount system of steel approach bridge. Referring to fig. 1, there is included a floating vessel including a floating platform 1 and a hoist provided on the floating platform 1. The crane comprises a suspension arm 2 arranged on a floating platform 1, and a rotary lifting appliance 3 is lifted at the top end of the suspension arm 2 through a back guy cable 12.
Referring to fig. 1 and 2, the rotary spreader 3 includes a cross beam 31, two fixing rods 32 for connecting with the backstay 12 disposed on the boom 2 are fixedly connected to the upper surface of the cross beam 31, and the two fixing rods 32 are respectively disposed at two ends of the cross beam 31. The lower surface of the cross beam 31 is rotatably connected with a hook 33.
The hook 33 comprises a connecting rod 331 and two hooks 332 fixed on the periphery of the connecting rod 331, and the two hooks 332 are symmetrically distributed on the connecting rod 331. The upper surface of crossbeam 31 is sunken fluted 34, and the one end of connecting rod 331 inserts in the flute 34 from the lower surface of crossbeam 31, and the upper end of connecting rod 331 cup joints fixedly and is connected with spacing ring 333, and spacing ring 333 rotates the butt with the tank bottom of flute 34. A box cover 35 is inserted in the groove 34, the connecting rod 331 and the limiting ring 333 are shielded by the box cover 35, and the box cover 35 is welded with the cross beam 31. By arranging the groove 34, a cavity for accommodating the limiting ring 333 is reserved in the cross beam 31, so that the connection strength of the hook 33 and the cross beam 31 is improved.
Referring to fig. 1 and 2, a shoulder pole beam 4 is hung below the lifting hook 33, the shoulder pole beam 4 is arranged in a rectangular shape, and the width of the shoulder pole beam 4 is matched with that of the bridge section 8. Reinforcing rods 5 are welded between a pair of side frames of the carrying pole beam 4 in the length direction to reinforce the structural strength of the carrying pole beam 4. The four angular points of the shoulder pole beam 4 are all provided with the cable chains 6, one end of each cable chain 6 is fixedly connected with the upper surface of the shoulder pole beam 4, the other end of each cable chain 6 is hung on the hook 332, and specifically, the two cable chains 6 at the same end of the shoulder pole beam 4 are hung on the same hook 332, so that the stress of the lifting hook 33 is balanced.
The floating platform 1 is provided with a driving device for driving the bridge section 8 to rotate around the axis of the connecting rod 331. The driving device comprises two winches 11 arranged on the floating platform 1, and the two winches 11 are respectively arranged at two sides of the suspension arm 2. The pull rope of one of the windlasses 11 is bound with one end of the bridge section 8, and the pull rope of the other windlass 11 is bound with the other end of the bridge section 8.
The implementation principle of the steel approach bridge rapid hoisting system provided by the embodiment of the application is as follows:
when the hoisting construction of the coastal bridge segment 8 is carried out, the sling 7 is connected with the bridge segment 8, the pull ropes of the two winches 11 are connected with the bridge segment 8, and then the bridge segment 8 is hoisted. After the floating crane ship carries the bridge section 8 to move to the construction area, the orientation of the floating crane ship is adjusted to enable the head of the floating crane ship to face the bank, and then the floating crane ship is anchored and stabilized. The elevation angle of the boom 2 is then adjusted so that the middle of the bridge segment 8 is located between two piers, followed by adjusting the orientation of the bridge segment 8. The pulling rope is loosened by the shore side winch 11, and the pulling rope is wound by the shore side winch 11, so that the bridge section 8 can be gradually straightened. When the axis of the bridge section 8 is parallel to the connecting line of the two piers, the correction of the installation angle of the bridge section 8 is completed, and the bridge section 8 is subsequently lowered. Thereby under the condition of avoiding the floating crane ship to touch the reef, coast bridge section 8 is striden in hoist and mount that can be convenient, is showing the hoist and mount efficiency that has improved cross coast bridge section 8.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a quick hoist and mount system of steel approach bridge, includes the floating pontoon, the floating pontoon includes floating platform (1) and sets up the loop wheel machine on floating platform (1), its characterized in that: the crane comprises a suspension arm (2) and a rotary lifting tool (3) hoisted on the suspension arm (2), wherein the rotary lifting tool (3) comprises a cross beam (31) connected with a backstay cable (12) arranged on the suspension arm (2), the lower surface of the cross beam (31) is rotatably connected with a lifting hook (33), and a driving device used for driving a bridge section (8) to rotate is arranged on the floating platform (1).
2. The steel approach bridge rapid hoisting system according to claim 1, characterized in that: the driving device comprises two winches (11) arranged on the floating platform (1), wherein the pull rope of one winch (11) is connected with one end of the bridge section (8), and the pull rope of the other winch (11) is connected with the other end of the bridge section (8).
3. The steel approach bridge rapid hoisting system according to claim 1, characterized in that: the lifting device is characterized by further comprising a carrying pole beam (4) hoisted below the lifting hook (33), wherein the lower surface of the carrying pole beam (4) is fixedly connected with four slings (7), and the slings (7) are used for being connected with the bridge section (8).
4. The steel approach bridge rapid hoisting system according to claim 3, characterized in that: the carrying pole beam (4) is arranged in a square frame shape, and the four suspension ropes (7) are respectively positioned at four corners of the carrying pole beam (4).
5. The steel approach bridge rapid hoisting system according to claim 3, characterized in that: a reinforcing rod (5) is fixedly connected between a pair of opposite side frames of the shoulder pole beam (4).
6. The steel approach bridge rapid hoisting system according to claim 4, characterized in that: the top fixedly connected with of bridge segment (8) is used for solid fixed ring (9) be connected with hoist cable (7), hoist cable (7) pass solid fixed ring (9) after through wire rope hasp (10) locking connection.
7. The steel approach bridge rapid hoisting system according to claim 1, characterized in that: the lifting hook (33) comprises a connecting rod (331) rotatably connected with the cross beam (31), and two hooks (332) are fixedly connected to the circumferential surface of the connecting rod (331).
8. The steel approach bridge rapid hoisting system according to claim 7, characterized in that: one end of the connecting rod (331) inserted into the cross beam (31) is fixedly sleeved with a limiting ring (333), and a cavity for accommodating the limiting ring (333) is reserved in the cross beam (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220864054.2U CN217708661U (en) | 2022-04-14 | 2022-04-14 | Steel approach bridge quick hoisting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220864054.2U CN217708661U (en) | 2022-04-14 | 2022-04-14 | Steel approach bridge quick hoisting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217708661U true CN217708661U (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220864054.2U Active CN217708661U (en) | 2022-04-14 | 2022-04-14 | Steel approach bridge quick hoisting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217708661U (en) |
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2022
- 2022-04-14 CN CN202220864054.2U patent/CN217708661U/en active Active
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