Steel arch rib large section mounting and hoisting equipment

Abstract

The invention belongs to the technical field of bridges, and particularly relates to steel arch rib large-section mounting and hoisting equipment which comprises a floating crane, a hoisting component is arranged at one end of a hoisting rope of the floating crane, and the hoisting component comprises an adjusting device and a fixing device. According to the steel arch rib large-section installing and hoisting equipment, by arranging the fixing device, an arch rib can be stably fixed in a multiple-fixing mode, labor input is reduced, fixing clamping jaws move oppositely or reversely under rotation of a lead screw of a moving assembly, the arch rib is clamped, the fixing clamping jaws can be driven to deflect through deflection of a fixing shell, and then the arch rib can be fixed. An annular rack is driven by a rotating motor to rotate in two opposite annular sliding grooves and rotate around the arch rib, rotation of the annular rack can drive one end of an auxiliary steel wire rope to move around the arch rib, and therefore the auxiliary steel wire rope is wound around the arch rib; and fixing of the arch rib is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of bridges, and in particular to a large-segment installation and hoisting device for steel arch ribs. Background Art

[0002] In bridge construction, long-span arch bridges, whose main components are steel arch ribs, offer advantages such as large spans, high torsional rigidity, high strength, light weight, easy prefabrication, short construction periods, good overall integrity, a simple and aesthetically pleasing appearance, and minimal environmental impact. Compared to concrete bridges, steel bridges reduce the weight of their superstructures, resulting in greater underpass clearance. With the development of transportation, steel bridges are expected to be widely adopted and applied in bridge construction.

[0003] The existing arch ribs are directly lifted by the lifting components of the floating crane. The arch ribs are directly lifted by the hooks, and manual operation requires extremely high technical skills. Multiple debugging is required to complete the splicing. In addition, the lifting height is relatively high, and the arch ribs are easily shaken by environmental influences such as wind and vibration, resulting in docking errors and safety hazards. The risks are exacerbated in complex weather or high-altitude operations. The supporting force of the floating crane and the control accuracy of the hook are limited, which may cause displacement deviation, reduce splicing accuracy, and reduce work efficiency. Summary of the Invention

[0004] Based on the technical problem that the existing arch ribs are directly lifted and assembled by the hook of a floating crane, the supporting force of the floating crane and the control accuracy of the hook are limited, which may cause displacement deviation, reduce the splicing accuracy and reduce work efficiency, the present invention proposes a large-segment installation and lifting equipment for steel arch ribs.

[0005] The present invention provides a large-segment installation and hoisting device for steel arch ribs, comprising a floating crane. One end of a hoisting rope of the floating crane is provided with a hoisting component, and the hoisting component comprises an adjusting device and a fixing device.

[0006] The adjusting device is located at one end of the lifting rope of the floating crane and adjusts the angle of the fixing device. The adjusting device includes an adjusting mechanism and a locking mechanism. The adjusting mechanism includes an adjusting wire rope. The winding of the adjusting wire rope drives the fixing device to adjust the angle. The locking mechanism includes a fixed locking block and a movable locking block. The fixed locking block and the movable locking block lock the adjusting wire rope when they are relative to each other.

[0007] The fixing device is located on the outer surface of the adjusting device and fixes the arch rib to be installed. The fixing device includes a fixing mechanism and an auxiliary mechanism. The fixing mechanism fixes the arch rib after clamping it, and the auxiliary mechanism fixes the arch rib for the second time.

[0008] Preferably, the adjustment mechanism includes an adjusting shell, which is fixedly installed on one end of the lifting rope of the floating crane, and an adjusting winding assembly is fixedly installed on the inner wall of the adjusting shell, and an adjusting wire rope is fixedly installed on the outer surface of the adjusting winding assembly. The inner wall of the adjusting shell is rotatably connected to a steering roller through a bearing seat, and one end of the adjusting wire rope passes around the outer surface of the steering roller and extends to the bottom of the adjusting shell.

[0009] Through the above technical solution, the lifting rope of the floating crane can drive the adjustment shell to rise and fall, and the adjustment winding assembly in the adjustment shell drives the winding roller to rotate through the motor, and the adjustment wire rope on the winding roller can be released and wound. The four groups of adjustment wire ropes are controlled separately, so that the angle of the fixing device below can be adjusted to facilitate docking, thereby shortening the docking time, and the steering roller can adjust the direction of the wire rope to facilitate the direction of the wire rope.

[0010] Preferably, the locking mechanism also includes a support plate, which is fixedly mounted inside the adjusting shell, the upper surface of the support plate is fixedly mounted to one end of the fixed locking block, the upper surface of the support plate is rotatably connected to a pushing screw through a support frame and a bearing, the lower surface of the support plate is fixedly mounted with a locking motor that drives the pushing screw to rotate, the outer surface of the pushing screw is threadedly connected to a pushing frame, the upper surface of the support plate is fixedly mounted with a limiting slot plate with a groove, and the outer surface of the pushing frame is slidably plugged into the inner wall of the limiting slot plate.

[0011] Through the above technical solution, the push frame can be driven to move by starting the push screw, and the lifting of the push frame can drive the movable locking block to lift.

[0012] Preferably, the outer surface of the pushing frame is slidably plugged into one end of the movable locking block, the outer surface of the movable locking block is rotatably connected to a pushing roller, the outer surface of the pushing roller is slidably plugged into the inner wall of the groove of the limiting slot plate, and the inner surfaces of the tooth grooves of the movable locking block and the fixed locking block are respectively in contact with the outer surfaces on both sides of the adjusting wire rope.

[0013] Through the above technical solution, the roller on the movable locking block slides in the groove of the limit slot plate. As the movable locking block rises, the movable locking block can move on the pushing frame at the same time, close to the outer surface of the adjusting wire rope. The adjusting wire rope can be clamped by the cooperation of the movable locking block and the fixed locking block, so that the adjusting wire rope can maintain the released position without loosening, causing the adjustment angle position to shift.

[0014] Preferably, the fixing mechanism includes a fixing frame, which is fixedly mounted on the lower surface of the adjusting shell through a connecting frame, an electric hoist is fixedly mounted on the lower surface of the fixing frame, an automatic opening and closing hook is fixedly mounted on one end of the steel wire rope of the electric hoist, and a gravity sensor is fixedly mounted on the upper surface of the fixing frame.

[0015] Through the above technical solution, the lifting and lowering control of the automatic opening and closing hook can be completed by the electric hoist. The automatic opening and closing hook can lift the arch rib, reduce the gravity borne by the adjusting wire rope and the fixing device, share the gravity of the arch rib lifting, and the automatic opening and closing hook can automatically open and close, reducing the manual release of the arch rib.

[0016] Preferably, the upper surface of the fixing frame is rotatably connected to an auxiliary roller through a bracket, and one end of the adjusting wire rope is fixedly installed on the outer surface of the auxiliary roller after passing around the outer surface of the auxiliary roller. The outer surface of the fixed shell is respectively fixedly installed with a tilt sensor and a camera.

[0017] Through the above technical solution, the auxiliary roller can be used to clamp and limit the adjustment wire rope, the fixed installation of the wire rope can be adjusted through the fixed shell, and the fixed shell can be deflected by adjusting the winding of the wire rope. Therefore, the deflection of the fixed shell can drive the fixed arch ribs on the fixed mechanism and the auxiliary mechanism to deflect, thereby completing the angle adjustment. Through the cooperation of the inclination sensor and the camera, the static inclination angle of the arch rib can be directly monitored, and the spatial posture and splicing mark points of the arch rib can be identified through image analysis. The high-resolution camera shoots the key parts of the arch rib (such as bolt holes and locating pins), and the AI ​​algorithm is used to extract feature points and calculate the angle deviation.

[0018] Preferably, a moving component is fixedly mounted on the lower surface of the fixed housing, a fixed clamp is threadedly connected to the outer surface of the screw rod of the moving component, and one end of the fixed clamp is slidably connected to the outer surface of the slide rod of the moving component.

[0019] Through the above technical solution, the fixed clamp is moved relative or oppositely under the rotation of the screw of the moving component. The moving component includes a motor, a screw and a sliding rod. After the motor drives the screw to rotate, it can drive the fixed clamp to move relative or oppositely, and can clamp the arch rib. The deflection of the fixed shell can drive the fixed clamp to deflect, so that the deflection of the arch rib clamped by the fixed clamp can be adjusted.

[0020] Preferably, the auxiliary mechanism includes a limit rod, which is fixedly mounted on the outer surface of the fixed shell, a limit ring is fixedly mounted on the outer surface of the limit rod, an annular groove is slidably inserted into the outer surface of the limit rod, a push rod is fixedly mounted on the outer surface of the two fixed clamps, the outer surface of the annular groove is slidably inserted into the outer surface of the push rod, a connecting spring is fixedly mounted on the outer surface of the push rod, and one end of the connecting spring is fixedly mounted on the outer surface of the annular groove.

[0021] Through the above technical solution, through the movement of the fixed clamp, the connecting spring on the fixed clamp can drive the annular slide groove to move, so that the annular slide groove is blocked and cannot move when it moves to the limit ring, so that the movement of the fixed clamp drives the push rod to move and the connecting spring is compressed.

[0022] Preferably, an annular rack is slidably inserted into the inner wall of one of the annular chutes, and a rotating motor with a gear is fixedly mounted on the outer surface of the annular chute, and the gear of the rotating motor is meshed with the annular rack.

[0023] Through the above technical solution, the annular rack is driven by a rotary motor to rotate in two opposite annular chutes and rotate around the arch rib.

[0024] Preferably, the inner wall of the fixed shell is provided with an auxiliary winding assembly, the outer surface of the auxiliary winding assembly is fixedly installed with an auxiliary steel wire rope, the inner wall of the fixed shell is rotatably connected to a steering roller, and one end of the auxiliary steel wire rope passes around the outer surface of the steering roller and is fixedly installed with one end of the annular rack.

[0025] Through the above technical solution, the auxiliary winding component is used to rotate the motor and the winding roller to complete the winding and releasing of the auxiliary steel wire rope, so that the auxiliary steel wire rope can be wound around the arch rib to complete the auxiliary fixation of the arch rib.

[0026] The beneficial effects of the present invention are:

[0027] 1. By setting an adjusting device, the angle of the fixing device can be adjusted, thereby the angle of the arch rib can be adjusted, which is convenient for completing the docking work, and the center of gravity of the arch rib can be adjusted during lifting so that the center of gravity is vertically downward, which is convenient for lifting. The adjusting winding assembly in the adjustment shell drives the winding roller to rotate through the motor, and the adjusting wire rope on the winding roller can be released and wound. The four groups of adjusting wire ropes are controlled separately, so that the angle of the fixing device below can be adjusted, which is convenient for completing the docking, thereby shortening the docking time. The steering roller can adjust the direction of the wire rope to facilitate the direction of the wire rope. The adjusting wire rope can be fixed by cooperating with the mobile locking block and the fixed locking block, so as to maintain the stability of the adjusting wire rope, which solves the existing arch ribs that are directly lifted and assembled by the hook of the floating crane, and the supporting force of the floating crane and the control accuracy of the hook are limited, which may cause displacement deviation, reduce the splicing accuracy, and reduce the work efficiency. Technical problems.

[0028] 2. By setting up a fixing device, the multiple fixing methods can stably fix the arch ribs, and the disassembly is convenient, reducing the labor input. The fixed clamps can move relative or oppositely under the rotation of the screw rod of the moving component to clamp the arch ribs. The deflection of the fixed shell can drive the fixed clamps to deflect, so that the arch ribs clamped by the fixed clamps can be adjusted to deflect. The annular rack is driven by a rotating motor to rotate in two opposite annular slots and rotate around the arch ribs. The rotation of the annular rack can drive one end of the auxiliary steel wire rope to move around the arch ribs, so that the auxiliary steel wire rope is wound around the arch ribs to complete the fixation of the arch ribs, solving the existing arch ribs that are directly lifted and assembled by the hook of the floating crane. The supporting force of the floating crane and the control accuracy of the hook are limited, which may cause displacement deviation, reduce splicing accuracy, and reduce work efficiency. Technical problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of a hoisting device for installing a large segment of a steel arch rib proposed by the present invention;

[0030] Figure 2 A three-dimensional diagram of the adjustable housing structure of a steel arch rib large segment installation and hoisting device proposed by the present invention;

[0031] Figure 3 A three-dimensional diagram of the adjusting and winding component structure of a steel arch rib large segment installation and hoisting equipment proposed by the present invention;

[0032] Figure 4 A three-dimensional diagram of the steering roller structure of a steel arch rib large segment installation and hoisting equipment proposed by the present invention;

[0033] Figure 5 A three-dimensional diagram of a fixed locking block structure of a steel arch rib large segment installation and hoisting device proposed by the present invention;

[0034] Figure 6 A three-dimensional diagram of a movable locking block structure of a steel arch rib large segment installation and hoisting device proposed by the present invention;

[0035] Figure 7 A three-dimensional diagram of a fixing frame structure of a steel arch rib large segment installation and hoisting device proposed by the present invention;

[0036] Figure 8 A three-dimensional diagram of the electric hoist structure of a steel arch rib large segment installation and hoisting device proposed by the present invention;

[0037] Figure 9 A three-dimensional diagram of the fixed shell structure of a steel arch rib large segment installation and hoisting device proposed by the present invention;

[0038] Figure 10 A three-dimensional diagram of a fixed clamping claw structure of a steel arch rib large segment installation and lifting equipment proposed by the present invention;

[0039] Figure 11 A three-dimensional diagram of the auxiliary steel wire rope structure of a hoisting device for installing a large segment of a steel arch rib proposed by the present invention;

[0040] Figure 12 This is a three-dimensional diagram of the annular chute structure of the steel arch rib large segment installation and lifting equipment proposed by the present invention.

[0041] In the figure: 1. Floating crane; 2. Adjusting shell; 21. Adjusting winding assembly; 22. Adjusting wire rope; 23. Steering roller; 3. Support plate; 31. Fixed locking block; 32. Pushing screw; 33. Locking motor; 34. Pushing frame; 35. Limiting slot plate; 36. Moving locking block; 37. Pushing roller; 4. Fixed frame; 41. Electric hoist; 42. Automatic opening and closing hook; 43. Gravity sensor; 5. Auxiliary roller; 51. Fixed shell; 52. Inclination sensor; 53. Camera; 6. Moving assembly; 61. Fixed clamp; 7. Limiting rod; 71. Limiting ring; 72. Annular slide; 73. Pushing rod; 74. Connecting spring; 75. Annular rack; 76. Rotating motor; 77. Auxiliary winding assembly; 78. Auxiliary wire rope; 79. Steering roller. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0043] Reference Figures 1-12A large-segment installation and hoisting device for steel arch ribs includes a floating crane 1. One end of a lifting rope of the floating crane 1 is provided with a hoisting component, and the hoisting component includes an adjusting device and a fixing device.

[0044] like Figure 2-Figure 6 As shown, in order to adjust the angle of the arch rib, the adjusting device is located at one end of the lifting rope of the floating crane 1, and adjusts the angle of the fixing device. The adjusting device includes an adjusting mechanism and a locking mechanism. The adjusting mechanism includes an adjusting wire rope 22. The winding of the adjusting wire rope 22 drives the fixing device to adjust the angle. The locking mechanism includes a fixed locking block 31 and a movable locking block 36. The fixed locking block 31 and the movable locking block 36 are relative to each other to lock the adjusting wire rope 22.

[0045] Specifically, in order to accurately adjust the arch ribs at multiple angles, the adjustment mechanism includes an adjusting shell 2, which is fixedly installed on one end of the lifting rope of the floating crane 1. The inner wall of the adjusting shell 2 is fixedly installed with an adjusting winding assembly 21. The adjusting winding assembly 21 includes a motor that drives the winding roller to rotate. The motor is fixedly installed on the inner wall of the adjusting shell 2, and the winding roller is rotatably connected to the inner wall of the adjusting shell 2 through a bearing. The outer surface of the adjusting winding assembly 21 is fixedly installed with an adjusting wire rope 22. In order to steer and convey the adjusting wire rope 22, the inner wall of the adjusting shell 2 is rotatably connected to a steering roller 23 through a bearing seat. One end of the adjusting wire rope 22 passes around the outer surface of the steering roller 23 and extends to the bottom of the adjusting shell 2.

[0046] Specifically, in order to individually control and fix the four groups of adjusting steel ropes 22, the locking mechanism also includes a support plate 3, which is fixedly installed inside the adjusting shell 2, and the upper surface of the support plate 3 is fixedly installed with one end of the fixed locking block 31. The upper surface of the support plate 3 is rotatably connected to the pushing screw 32 through the support frame and the bearing, and the lower surface of the support plate 3 is fixedly installed with a locking motor 33 that drives the pushing screw 32 to rotate. The outer surface of the pushing screw 32 is threadedly connected to the pushing frame 34, and the upper surface of the support plate 3 is fixedly installed with a limiting slot plate 35 with a groove, and the outer surface of the pushing frame 34 is slidably plugged into the inner wall of the limiting slot plate 35.

[0047] In order to stably fix the adjusting wire rope 22, the outer surface of the pushing frame 34 is slidably inserted into one end of the movable locking block 36, and the outer surface of the movable locking block 36 is rotatably connected to the pushing roller 37. The outer surface of the pushing roller 37 is slidably inserted into the inner wall of the groove of the limiting slot plate 35, and the inner surfaces of the tooth grooves of the movable locking block 36 and the fixed locking block 31 are respectively in contact with the outer surfaces on both sides of the adjusting wire rope 22.

[0048] like Figure 7-12As shown, in order to fix the arch rib, the fixing device is located on the outer surface of the adjusting device and fixes the arch rib to be installed. The fixing device includes a fixing mechanism and an auxiliary mechanism. The fixing mechanism fixes the arch rib after clamping it, and the auxiliary mechanism fixes the arch rib for the second time.

[0049] Specifically, in order to preliminarily fix the arch rib, the fixing mechanism includes a fixing frame 4, which is fixedly installed on the lower surface of the adjusting shell 2 through a connecting frame. An electric hoist 41 is fixedly installed on the lower surface of the fixing frame 4, and an automatic opening and closing hook 42 is fixedly installed on one end of the wire rope of the electric hoist 41. The automatic opening and closing of the hook is realized by electromagnetic force, and the electromagnet is attracted or released by controlling the current to control the state of the hook. A gravity sensor 43 is fixedly installed on the upper surface of the fixing frame 4, which can monitor the center of gravity of the lifted arch rib.

[0050] Specifically, in order to facilitate the adjustment of the angle of the arch rib, the upper surface of the fixed frame 4 is connected to the auxiliary roller 5 through the bracket rotation, and one end of the adjusting wire rope 22 is passed around the outer surface of the auxiliary roller 5 and then fixedly installed with a fixed shell 51. The outer surface of the fixed shell 51 is respectively fixedly installed with an inclination sensor 52 and a camera 53; through the cooperation of the inclination sensor 52 and the camera 53, the static inclination angle of the arch rib is directly monitored, and the spatial posture and splicing mark points of the arch rib are identified through image analysis. The high-resolution camera 53 shoots key parts of the arch rib such as bolt holes and locating pins, and combines the AI ​​algorithm to extract feature points and calculate the angle deviation.

[0051] Specifically, in order to stably fix the arch rib, a moving component 6 is fixedly installed on the lower surface of the fixed shell 51, and the outer surface of the screw rod of the moving component 6 is threadedly connected to the fixed clamp 61. One end of the fixed clamp 61 is slidingly connected to the outer surface of the slide rod of the moving component 6. The moving component 6 includes a motor, a screw rod and a slide rod. After the motor drives the screw rod to rotate, it can drive the fixed clamp 61 to move relative or oppositely, and can clamp the arch rib. The deflection of the fixed shell 51 can drive the fixed clamp 61 to deflect, so that the arch rib clamped by the fixed clamp 61 can be adjusted to deflect.

[0052] Specifically, in order to perform multiple fixations on the arch ribs, the auxiliary mechanism includes a limit rod 7, which is fixedly mounted on the outer surface of the fixed shell 51, and a limit ring 71 is fixedly mounted on the outer surface of the limit rod 7. The outer surface of the limit rod 7 is slidably plugged with an annular slide 72, and the outer surfaces of the two fixed clamps 61 are fixedly mounted with a push rod 73. The outer surface of the annular slide 72 is slidably plugged with the outer surface of the push rod 73, and the outer surface of the push rod 73 is fixedly mounted with a connecting spring 74, one end of the connecting spring 74 is fixedly mounted on the outer surface of the annular slide 72, and the position of the annular slide 72 can be limited by the limit ring 71, so that the two opposite annular slides 72 can be spliced ​​into a notched circular ring.

[0053] Specifically, in order to complete the multiple automatic fixation of the arch ribs, an annular rack 75 is slidably inserted into the inner wall of an annular groove 72, and a rotating motor 76 with a gear is fixedly installed on the outer surface of the annular groove 72, and the gear of the rotating motor 76 is engaged with the annular rack 75.

[0054] Specifically, in order to fix the arch ribs, an auxiliary winding assembly 77 is provided on the inner wall of the fixed shell 51, and an auxiliary steel wire rope 78 is fixedly installed on the outer surface of the auxiliary winding assembly 77. The auxiliary winding assembly 77 is driven by a motor to rotate the gear, and the gear drives the gear of the winding roller to rotate. The coordination between the gears is utilized to facilitate the positioning of the auxiliary steel wire rope 78. The inner wall of the fixed shell 51 is rotatably connected to a steering roller 79, and one end of the auxiliary steel wire rope 78 passes around the outer surface of the steering roller 79 and is fixedly installed on one end of the annular rack 75.

[0055] Working principle: When the arch rib needs to be spliced, after the steel wire rope is released by the floating crane 1, the fixed frame 4 can be driven to descend. After the electric hoist 41 on the fixed frame 4 automatically opens and closes the hook 42 to release it, the lifting ring of the arch rib is fixed. After the fixed jaws 61 are positioned at both ends of the arch rib steel beam, the screw rod of the moving component 6 is activated, and the two fixed jaws 61 fix the steel beam of the arch rib. The movement of the fixed jaws 61 drives the annular slide 72 to move on the limit rod 7 through the push rod 73 and the connecting spring 74. After the annular slide 72 contacts the limit ring 71, it is limited and cannot move with the movement of the fixed jaws 61, and the connecting spring 74 is compressed.

[0056] After the rotary motor 76 on the annular chute 72 is started, the annular rack 75 is driven to move in the annular chute 72 through the transmission of the gear. At the same time, the auxiliary winding assembly 77 in the fixed housing 51 releases the auxiliary steel wire rope 78. The auxiliary steel wire rope 78 is wound around the steel beam of the arch rib as it is pulled by the annular rack 75 through the steering roller 79, thereby further fixing the arch rib.

[0057] After the fixation is completed, the floating crane 1 lifts the adjustment shell 2 and lifts the fixed arch rib. The gravity sensor 43 detects the center of gravity of the arch rib. When the center of gravity shifts, the locking motor 33 on one side of the corresponding adjustment wire rope 22 drives the pushing screw 32 to rotate, and the pushing screw 32 drives the pushing frame 34 to descend. Then, the pushing frame 34 drives the movable locking block 36 slidably connected thereto to descend. At the same time, the roller of the movable locking block 36 moves in the limiting slot plate 35, and the movable locking block 36 moves away from the adjustment wire rope 22. After the fixation of the adjustment wire rope 22 is released, the corresponding adjustment winding assembly 21 drives the adjustment wire rope 22 to be wound or released, and the adjustment wire rope 22 drives the fixed shell 51 fixed thereto to deflect, thereby completing the adjustment of the center of gravity.

[0058] After moving to the position where splicing is required, the inclination sensor 52 and the camera 53 cooperate to determine the angle that needs to be adjusted, and then the adjustment wire rope 22 can be wound or released by adjusting the winding component 21 to complete the angle adjustment of the arch rib, thereby facilitating the splicing of the arch rib.

[0059] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A large-segment steel arch rib installation and hoisting device, comprising a floating crane (1), characterized in that: One end of the lifting rope of the floating crane (1) is provided with a lifting component, and the lifting component includes an adjusting device and a fixing device; The adjusting device is located at one end of the lifting rope of the floating crane (1) and adjusts the angle of the fixing device. The adjusting device includes an adjusting mechanism and a locking mechanism. The adjusting mechanism includes an adjusting wire rope (22). The winding of the adjusting wire rope (22) drives the fixing device to adjust the angle. The locking mechanism includes a fixed locking block (31) and a movable locking block (36). The fixed locking block (31) and the movable locking block (36) are relative to each other to lock the adjusting wire rope (22). The fixing device is located on the outer surface of the adjusting device and fixes the arch rib to be installed. The fixing device includes a fixing mechanism and an auxiliary mechanism. The fixing mechanism fixes the arch rib after clamping it, and the auxiliary mechanism fixes the arch rib for the second time.

2. The large-segment steel arch rib installation and hoisting equipment according to claim 1, characterized in that: The adjusting mechanism includes an adjusting shell (2), the adjusting shell (2) is fixedly mounted on one end of the lifting rope of the floating crane (1), an adjusting winding assembly (21) is fixedly mounted on the inner wall of the adjusting shell (2), an adjusting steel wire rope (22) is fixedly mounted on the outer surface of the adjusting winding assembly (21), the inner wall of the adjusting shell (2) is rotatably connected to a steering roller (23) through a bearing seat, and one end of the adjusting steel wire rope (22) passes around the outer surface of the steering roller (23) and extends to the bottom of the adjusting shell (2).

3. The large-segment steel arch rib installation and hoisting equipment according to claim 2, characterized in that: The locking mechanism further comprises a support plate (3), the support plate (3) being fixedly mounted inside the adjusting housing (2), the upper surface of the support plate (3) being fixedly mounted to one end of the fixed locking block (31), the upper surface of the support plate (3) being rotatably connected to a push screw (32) via a support frame and a bearing, the lower surface of the support plate (3) being fixedly mounted to a locking motor (33) for driving the push screw (32) to rotate, the outer surface of the push screw (32) being threadedly connected to a push frame (34), the upper surface of the support plate (3) being fixedly mounted to a limiting slot plate (35) with a groove, the outer surface of the push frame (34) being slidably plugged into the inner wall of the limiting slot plate (35).

4. The large-segment steel arch rib installation and hoisting equipment according to claim 3, characterized in that: The outer surface of the pushing frame (34) is slidably plugged into one end of the movable locking block (36), the outer surface of the movable locking block (36) is rotatably connected to a pushing roller (37), the outer surface of the pushing roller (37) is slidably plugged into the inner wall of the groove of the limiting slot plate (35), and the inner surfaces of the tooth grooves of the movable locking block (36) and the fixed locking block (31) are respectively in contact with the outer surfaces of both sides of the adjusting wire rope (22).

5. The large-segment steel arch rib installation and hoisting equipment according to claim 4, characterized in that: The fixing mechanism comprises a fixing frame (4), the fixing frame (4) being fixedly mounted on the lower surface of the adjusting housing (2) via a connecting frame, an electric hoist (41) being fixedly mounted on the lower surface of the fixing frame (4), an automatic opening and closing hook (42) being fixedly mounted on one end of a steel wire rope of the electric hoist (41), and a gravity sensor (43) being fixedly mounted on the upper surface of the fixing frame (4).

6. The large-segment steel arch rib installation and hoisting equipment according to claim 5, characterized in that: The upper surface of the fixing frame (4) is rotatably connected to an auxiliary roller (5) through a bracket, and one end of the adjusting wire rope (22) is passed around the outer surface of the auxiliary roller (5) and then fixedly mounted on a fixed housing (51). The outer surface of the fixed housing (51) is respectively fixedly mounted with an inclination sensor (52) and a camera (53).

7. The large-segment steel arch rib installation and hoisting equipment according to claim 6, characterized in that: A moving assembly (6) is fixedly mounted on the lower surface of the fixed housing (51), a fixed clamp (61) is threadedly connected to the outer surface of the screw rod of the moving assembly (6), and one end of the fixed clamp (61) is slidably connected to the outer surface of the sliding rod of the moving assembly (6).

8. The large-segment steel arch rib installation and hoisting equipment according to claim 7, characterized in that: The auxiliary mechanism includes a limiting rod (7), the limiting rod (7) is fixedly mounted on the outer surface of the fixed shell (51), a limiting ring (71) is fixedly mounted on the outer surface of the limiting rod (7), an annular groove (72) is slidably inserted into the outer surface of the limiting rod (7), a pushing rod (73) is fixedly mounted on the outer surface of the two fixed clamps (61), the outer surface of the annular groove (72) is slidably inserted into the outer surface of the pushing rod (73), a connecting spring (74) is fixedly mounted on the outer surface of the pushing rod (73), and one end of the connecting spring (74) is fixedly mounted on the outer surface of the annular groove (72).

9. The large-segment steel arch rib installation and hoisting equipment according to claim 8, characterized in that: An annular rack (75) is slidably inserted into the inner wall of the annular chute (72), and a rotating motor (76) with a gear is fixedly installed on the outer surface of the annular chute (72), and the gear of the rotating motor (76) is meshed with the annular rack (75).

10. The large-segment steel arch rib installation and hoisting equipment according to claim 9, characterized in that: The inner wall of the fixed housing (51) is provided with an auxiliary winding assembly (77), the outer surface of the auxiliary winding assembly (77) is fixedly mounted with an auxiliary steel wire rope (78), the inner wall of the fixed housing (51) is rotatably connected to a steering roller (79), one end of the auxiliary steel wire rope (78) passes around the outer surface of the steering roller (79) and is fixedly mounted with one end of the annular rack (75).

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