Hoisting system for mounting prefabricated building prefabricated structure

Abstract

The invention relates to a hoisting system for mounting a prefabricated building prefabricated structure, which comprises a horizontal angle adjusting mechanism and a rotating platform, the rotating platform comprises a slewing bearing, an upper flange is arranged on the upper end face of the outer ring of the slewing bearing, and a lower flange is arranged on the lower end face of the inner ring of the slewing bearing; the upper flange is provided with a first driving piece for driving the inner ring of the slewing bearing to rotate around a shaft; the three-dimensional fine adjustment mechanism comprises a vertical fine adjustment assembly, a transverse fine adjustment assembly and a longitudinal fine adjustment assembly. According to the invention, X / Y / Z linear displacement and Z-axis rotation adjusting functions are integrated, manual intervention is reduced, adjustment of horizontal displacement, vertical height and horizontal angle can be realized, and the mounting efficiency and safety of the laminated slab are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction hoisting equipment, and in particular to a hoisting system for installing prefabricated structures of assembled buildings. Background Art

[0002] In prefabricated buildings, composite panels (such as precast concrete floor slabs and stair slabs) are usually hoisted using tower cranes. These cranes are connected to the four corners of the composite panels via four steel cables. The hoisting method primarily relies on steel cables or rigid slings, which present the following technical drawbacks:

[0003] Insufficient fine-tuning capabilities: Traditional hoists are only capable of rough lifting and lowering. Furthermore, tower cranes operate with the tower crane as the center of the hoist, effectively enabling the hoist to a rough position. Precise adjustments of the horizontal (X-axis), vertical (Y-axis), and vertical (Z-axis) positions of the hoist are difficult while the hoist is suspended. Once the hoist is in place, workers must manually push or use a crowbar to adjust its position, which is inefficient and poses safety risks.

[0004] Angle adjustment missing:

[0005] During installation, composite slabs often need to be aligned with steel trusses or adjacent components. Among the existing lifting devices, for example, the composite slab construction lifting device and lifting method disclosed in publication number CN119191080B, although its technical solution can easily achieve horizontal and vertical adjustment of the composite slab, it lacks the horizontal rotation (around the Z axis) function, resulting in the need for repeated lifting and adjustment of angle deviations, which is time-consuming and labor-intensive.

[0006] Based on the above background, how to achieve efficient multi-degree-of-freedom fine-tuning of existing composite plate lifting is an urgent problem to be solved. The present invention integrates X / Y / Z linear displacement and rotation adjustment functions around the Z axis to reduce manual intervention. Summary of the Invention

[0007] In view of the above problems, the present invention provides a hoisting system for installing prefabricated structures of assembled buildings, which can adjust the horizontal displacement, vertical height and horizontal angle, thereby improving the installation efficiency and safety of the composite panels.

[0008] The specific technical solutions are as follows:

[0009] A hoisting system for installing prefabricated structures of assembled buildings, comprising

[0010] The horizontal angle adjustment mechanism includes a rotating platform, the rotating platform includes a slewing bearing, the upper end surface of the outer ring of the slewing bearing is coaxially provided with an upper flange for connecting to the tower crane rope, the lower end surface of the inner ring of the slewing bearing is coaxially provided with a lower flange for connecting to the three-dimensional fine-tuning mechanism, and the upper flange is provided with a first driving member for driving the inner ring of the slewing bearing to rotate about the axis;

[0011] The three-dimensional fine-tuning mechanism includes two longitudinal beams arranged in a left-right symmetrical manner, and a first groove is respectively arranged along the longitudinal direction on the side surfaces of the two longitudinal beams close to each other, and a vertical fine-tuning component is arranged in the first groove along its length direction. Two transverse supporting beams that move toward or away from each other are symmetrically arranged between the two vertical fine-tuning components, and the two transverse supporting beams are respectively provided with transverse fine-tuning components that move synchronously and are used to connect with the composite plate. The front end and / or rear end of the inner part of the first groove are provided with a longitudinal fine-tuning component for moving the vertical fine-tuning component longitudinally.

[0012] Furthermore, a plurality of lifting ropes of equal length are arranged in sequence at equal intervals along the circumference of the upper end surface edge of the upper flange, and the upper ends of the plurality of lifting ropes are commonly connected to a lifting ring for connecting with a tower crane rope.

[0013] Furthermore, the upper end surface of the upper flange is also provided with a battery pack and a wireless communication module, and the wireless communication module is adapted to be equipped with a worker's handheld wireless terminal.

[0014] Furthermore, the inner ring of the slewing bearing is coaxially provided with an inner gear ring, the first driving member includes a first motor and a first reducer arranged on the upper end surface of the upper flange, the output shaft of the first reducer extends vertically downward to the inner ring of the slewing bearing and is coaxially provided with a first gear meshing with the inner gear ring.

[0015] Furthermore, the two ends of the two longitudinal beams are respectively connected by a transverse connecting beam, and the lower end edge of the lower flange is provided with four connecting rope bodies of equal length at equal intervals along its circumference, and the lower ends of the four connecting rope bodies are respectively connected to the two ends of the upper end surfaces of the two transverse connecting beams.

[0016] Furthermore, the vertical fine-tuning assembly includes a vertical fine-tuning movable seat, the length direction of the vertical fine-tuning movable seat is arranged along the length direction of the first groove, a second sliding cavity is arranged inside the vertical fine-tuning movable seat along its length direction, a screw rod is arranged inside the second sliding cavity along its length direction, the front and rear ends of the screw rod are respectively provided with a first thread and a second thread, the first thread and the second thread have the same pitch but opposite thread directions, a first ball nut slider is adapted on the first thread, and a second ball nut slider is adapted on the second thread, and a second driving member for driving the screw rod to rotate is also provided on the vertical fine-tuning movable seat.

[0017] Furthermore, the second driving member includes a second motor provided on the vertical fine-tuning movable seat and a worm connected to the second motor shaft in a transmission manner. The worm is equipped with a worm wheel, and the worm wheel is coaxially connected to one end of the lead screw.

[0018] Furthermore, a first guide support rod is provided inside the first groove along its length direction, and a first guide sliding hole adapted to the first guide support rod is provided inside the vertical fine-tuning movable seat along its length direction.

[0019] Furthermore, a first rectangular opening is respectively provided in the longitudinal direction on one end surface of the two vertical fine-tuning movable seats close to each other, and the two ends of the transverse supporting beam located at the rear of the two transverse supporting beams are respectively connected to the two first ball nut sliders, and the two ends of the transverse supporting beam located at the front are respectively connected to the two second ball nut sliders.

[0020] Furthermore, a second guide support rod is provided inside the first groove near its notch position along its length direction, and second guide sliding holes adapted to the second guide support rod are respectively provided at both ends of each transverse load-bearing beam along the longitudinal direction.

[0021] Furthermore, the lateral fine-tuning component includes a rectangular movable frame mounted on the lateral load-bearing beam, and guide rails are respectively provided at the four lateral corner positions of the lateral load-bearing beam. Guide support wheels adapted to the guide rails are respectively provided on the front and rear inner walls of the rectangular movable frame. A bevel rack is laterally provided on the upper end face of the lateral load-bearing beam, and a bevel gear is engaged with the bevel rack. A third motor for rotating the bevel gear around the axis is provided at the upper end of the rectangular movable frame, and a lifting rope for connecting to the composite plate is respectively provided at the left and right ends of the lower end face of each rectangular movable frame.

[0022] Furthermore, the hoisting rope is one of a steel wire rope and an electric hoist, preferably an electric hoist.

[0023] Furthermore, the longitudinal fine-tuning assembly includes a first telescopic cylinder and a second telescopic cylinder, the cylinder body of the first telescopic cylinder is hinged to the rear end of the first groove, the telescopic end of the first telescopic cylinder is hinged to the rear end of the vertical fine-tuning movable seat, the cylinder body of the second telescopic cylinder is hinged to the front end of the first groove, the telescopic end of the second telescopic cylinder is hinged to the front end of the vertical fine-tuning movable seat, and the first telescopic cylinder and the second telescopic cylinder are alternately telescoped and extended to perform interlocking movements.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) The present invention provides a hoisting system for installing prefabricated structures of assembled buildings. A three-dimensional fine-tuning mechanism is provided for hoisting a composite plate, and a horizontal angle adjustment mechanism is provided above the three-dimensional fine-tuning mechanism. By controlling the operation of a first driving member, the three-dimensional fine-tuning mechanism can be driven to rotate horizontally, thereby adjusting the horizontal angle of the composite plate, making it easier for the composite plate to be aligned with a steel truss or adjacent components during hoisting, saving manpower and improving hoisting efficiency.

[0026] (2) The present invention provides a hoisting system for installing prefabricated structures of assembled buildings. The arrangement of a three-dimensional fine-tuning mechanism can achieve fine-tuning of the horizontal and lateral directions of the composite plate by controlling the synchronous operation of two third motors. By controlling the operation of the first telescopic cylinder and the second telescopic cylinder, the two transverse bearing beams can be moved forward or backward synchronously to achieve fine-tuning of the horizontal and longitudinal directions of the composite plate. By controlling the operation of the second motor, the two transverse bearing beams can be moved closer to or away from each other, thereby achieving adjustment of the inclination of the hoisting rope and fine-tuning of the vertical direction of the composite plate, thereby achieving precise adjustment of the horizontal and lateral, horizontal and longitudinal, and vertical directions of the composite plate in a suspended state, thereby improving the efficiency and safety of the composite plate hoisting.

[0027] (3) The present invention provides a hoisting system for installing prefabricated structures of assembled buildings. By setting a first locking component for limiting the rotation of the lower flange, under normal conditions, the lower flange can be frictionally locked by the action of the locking components in the first upper clamp body and the first lower clamp body to prevent the lower flange from rotating. When the lower flange needs to rotate, the restriction of the locking component on the lower flange can be released through the hydraulic system, which facilitates the operation of the rotating platform and ensures the stability of the rotating platform under normal conditions and the accuracy of the hoisting fine-tuning.

[0028] (4) The present invention provides a hoisting system for installing prefabricated structures of assembled buildings. By setting a second locking component for limiting the movement of a rectangular movable frame, under normal conditions, the second locking component can achieve friction locking of the transverse load-bearing beam to prevent the movement of the rectangular movable frame; when the rectangular movable frame needs to move, the hydraulic system can release the restriction of the second locking component on the rectangular movable frame, thereby facilitating the operation of the rectangular movable frame and ensuring the stability of the rectangular movable frame under normal conditions and the accuracy of hoisting fine-tuning. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front view schematic diagram of the present invention.

[0030] Figure 2 It is a structural schematic diagram of the present invention.

[0031] Figure 3 It is a structural schematic diagram of the horizontal angle adjustment mechanism of the present invention.

[0032] Figure 4 It is a structural schematic diagram of the three-dimensional fine-tuning mechanism of the present invention.

[0033] Figure 5 It is a schematic structural diagram of the vertical fine-tuning component of the present invention.

[0034] Figure 6 This invention Figure 4 Schematic diagram of the cross-section at AA.

[0035] Figure 7 This invention Figure 5 Schematic diagram of the cross-section at BB.

[0036] Figure 8 It is a schematic diagram of the composite plate of the present invention when it is hoisted.

[0037] Figure 9 It is a schematic diagram of the positions of the lifting points on the composite plate of the present invention.

[0038] Figure 10 It is a structural schematic diagram of the first locking component of the present invention.

[0039] Figure 11 This invention Figure 10 A partial enlarged schematic diagram of point C.

[0040] Figure 12 This invention Figure 10 A partial enlarged schematic diagram of point D.

[0041] In the figure: 1. Horizontal angle adjustment mechanism; 2. Rotating platform; 21. Slewing bearing; 22. Upper flange; 23. Lifting rope; 24. Lower flange; 25. Internal gear ring; 26. First driving member; 27. Lifting ring; 28. Connecting rope body; 3. First locking component; 31. First locking seat; 32. First upper clamp body; 33. First lower clamp body; 34. Locking member; 341. First sliding cavity; 342. Piston; 343. First sealing ring; 344. Second sealing ring; 345. Locking spring; 346. Hydraulic cavity; 347. Friction plate; 35. Hydraulic pipeline; 36. Hydraulic branch pipeline; 37. Hydraulic system; 4. Three-dimensional fine-tuning mechanism ;5. Longitudinal beam;6. Transverse connecting beam;7. First groove;81. Vertical fine-tuning movable seat;82. Second sliding cavity;83. Screw rod;84. First ball nut slider;85. Second ball nut slider;86. Second driving member;87. First rectangular opening;88. First guide support rod;9. Transverse load-bearing beam;10. Transverse fine-tuning assembly;101. Rectangular movable frame;102. Guide support wheel body;103. Guide rail;104. Third motor;105. Second locking component;11. Longitudinal fine-tuning assembly;12. Second guide support rod;13. Composite plate;14. Steel truss;15. Lifting point;16. Lifting rope. DETAILED DESCRIPTION

[0042] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0043] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] Example 1

[0045] The present invention provides a hoisting system for installing prefabricated structures of assembled buildings, Figure 1 、 Figure 2 and Figure 3 , including a horizontal angle adjustment mechanism 1, the horizontal angle adjustment mechanism 1 includes a rotating platform 2, the rotating platform 2 includes a slewing bearing 21, the upper end surface of the outer ring of the slewing bearing 21 is coaxially provided with an upper flange 22 for connecting to the tower crane rope, the lower end surface of the inner ring of the slewing bearing 21 is coaxially provided with a lower flange 24 for connecting to the three-dimensional fine-tuning mechanism 4, the upper flange 22 is provided with a first driving member 26 for driving the inner ring of the slewing bearing 21 to rotate around the axis; the inner ring of the slewing bearing 21 is coaxially provided with an internal gear ring 25, the first driving member 26 includes a first motor and a first reducer provided on the upper end surface of the upper flange 22, the output shaft of the first reducer extends vertically downward to the inner ring of the slewing bearing 21 and is coaxially provided with a first gear meshing with the internal gear ring 25; the upper end edge of the upper flange 22 is provided with a plurality of lifting ropes 23 of equal length at equal intervals along its circumference, and the upper ends of the plurality of lifting ropes 23 are commonly connected to a lifting ring 27 for connecting to the tower crane rope. The slewing bearing 21 is a large bearing capable of bearing a comprehensive load and can simultaneously withstand large axial and radial loads and overturning moments. In this embodiment, the slewing bearing 21 uses the SKF QJ 200-6 model, with an inner diameter of 200mm, an outer diameter of 280mm, a dynamic load of 85.0kN, and a static load of 160.0kN, which is used to meet the hoisting requirements of the composite plate 13. The upper flange 22 and the lower flange 24 are made of Q345B steel plates with a thickness of 40mm, which are laser cut and formed. The upper flange 22 and the lower flange 24 are each connected to the slewing bearing 21 with 12 high-strength bolts. By controlling the operation of the first motor, the horizontal rotation of the lower flange 24 and the three-dimensional fine-tuning mechanism 4 can be driven, thereby realizing the adjustment of the horizontal angle of the composite plate 13, facilitating the alignment of the composite plate 13 with the steel truss 14 or adjacent components during hoisting, saving manpower and improving hoisting efficiency.

[0046] refer to Figure 1 、 Figure 2 、 Figure 4 and Figure 8, also includes a three-dimensional fine-tuning mechanism 4, including two longitudinal beams 5 arranged in a left-right symmetrical manner, and a first groove 7 is provided on the side surface of the two longitudinal beams 5 close to each other along the longitudinal direction, and a vertical fine-tuning component is provided in the first groove 7 along its length direction, and two transverse supporting beams 9 that move toward or away from each other are symmetrically provided between the two vertical fine-tuning components. The two transverse supporting beams 9 are respectively provided with a transverse fine-tuning component 10 that moves synchronously and is used to be connected to the composite plate 13, and the front end and / or rear end of the inner front end of the first groove 7 are provided with a longitudinal fine-tuning component 11 for longitudinally moving the vertical fine-tuning component.

[0047] Each of the lateral fine-tuning components 10 is provided with a hoisting rope 16 at the left and right ends of the lower end surface for connecting with the composite plate 13. The hoisting rope 16 is a wire rope or an electric hoist. Preferably, the electric hoist. The four hoisting ropes 16 are of equal length. Figure 9 The steel bar truss 14 on the composite plate 13 is provided with lifting points 15 at its four corners, and the lower ends of the four lifting ropes 16 are connected to the four lifting points 15 one by one.

[0048] Further, as a specific embodiment, refer to Figure 2 and Figure 4 The two longitudinal beams 5 are connected at both ends by a transverse connecting beam 6. Four equally-length connecting ropes 28 are arranged at regular intervals along the circumference of the lower end edge of the lower flange 24. The lower ends of the four connecting ropes 28 are connected to the two ends of the upper end surfaces of the two transverse connecting beams 6. The lower flange 24 is connected to the transverse connecting beams 6 via the four equally-length connecting ropes 28, thereby allowing the transverse connecting beams 6 and the longitudinal beams 5 to be suspended horizontally.

[0049] Further, as a specific embodiment, refer to Figure 4 、 Figure 5 and Figure 7The vertical fine-tuning assembly includes a vertical fine-tuning movable seat 81, the length direction of the vertical fine-tuning movable seat 81 is arranged along the length direction of the first groove 7, and a second sliding cavity 82 is provided inside the vertical fine-tuning movable seat 81 along its length direction, and a screw rod 83 is provided inside the second sliding cavity 82 along its length direction. The front and rear ends of the screw rod 83 are respectively provided with a first thread and a second thread, and the pitch of the first thread and the second thread are the same but the thread direction is opposite. A first ball nut slider 84 is adapted on the first thread, and a second ball nut slider 85 is adapted on the second thread. The vertical fine-tuning movable seat 81 is also provided with a second driving member 86 for driving the screw rod 83 to rotate; the second driving member 86 includes a second motor provided on the vertical fine-tuning movable seat 81 and a worm connected to the second motor shaft for transmission, the worm is adapted with a worm wheel, and the worm wheel is coaxially connected to one end of the screw rod 83. A first guide support rod 88 is further provided inside the first groove 7 along its length direction, and a first guide sliding hole adapted to the first guide support rod 88 is provided inside the vertical fine-tuning movable seat 81 along its length direction. Figure 8 When the composite plate 13 is suspended, the angle between the hoisting rope 16 and the horizontal plane of the composite plate 13 is an acute angle. At this time, by controlling the operation of the second motor, the two transverse load-bearing beams 9 can be moved closer to or away from each other, thereby adjusting the angle between the hoisting rope 16 and the horizontal plane of the composite plate 13. When the two transverse load-bearing beams 9 move closer to each other, the angle between the hoisting rope 16 and the horizontal plane of the composite plate 13 becomes smaller, causing the composite plate 13 to be fine-tuned upward. When the two transverse load-bearing beams 9 move away from each other, the angle between the hoisting rope 16 and the horizontal plane of the composite plate 13 becomes larger, causing the composite plate 13 to be fine-tuned downward, thereby achieving vertical fine-tuning of the composite plate 13. In the initial state, the vertical fine-tuning movable seat 81 is located in the middle of the first groove 7, the first ball nut slider 84 is located in the middle of the first thread, and the second ball nut slider 85 is located in the middle of the second thread. The worm gear has a self-locking function, that is, the worm can drive the worm wheel to rotate, but the worm wheel cannot drive the worm to rotate. This improves the stability of the first ball nut slider 84 and the second ball nut slider 85 when they move toward or away from each other, and prevents the lead screw 83 from rotating due to the weight of the laminated plate 13. The provision of the first guide support rod 88 can also improve the stability of the vertical fine-tuning movable seat 81 during longitudinal movement.

[0050] Further, as a specific embodiment, refer to Figure 4 、 Figure 5 and Figure 7The two vertical fine-tuning movable seats 81 are each provided with a first rectangular opening 87 along the longitudinal direction on one end face thereof that is close to each other. Of the two transverse support beams 9, the rear transverse support beam 9 is connected to the two first ball nut sliders 84 at its ends, while the front transverse support beam 9 is connected to the two second ball nut sliders 85 at its ends. A second guide support rod 12 is also provided along its length near the notch of the first groove 7. Each transverse support beam 9 is provided with a second guide hole along the longitudinal direction at both ends thereof that matches the second guide support rod 12. When the first ball nut slider 84 and the second ball nut slider 85 move toward or away from each other, the two transverse support beams 9 can be moved toward or away from each other. The provision of the second guide support rod 12 can improve the stability of the two transverse support beams 9 during longitudinal movement.

[0051] Further, as a specific embodiment, refer to Figure 4 and Figure 6 The lateral fine-tuning assembly 10 includes a rectangular movable frame 101 sleeved on the lateral load-bearing beam 9. The four lateral corners of the lateral load-bearing beam 9 are respectively provided with guide rails 103. The front and rear inner walls of the rectangular movable frame 101 are respectively provided with guide support wheels 102 adapted to the guide rails 103. The upper end surface of the lateral load-bearing beam 9 is provided with a bevel rack along the lateral direction. The bevel rack is engaged with a bevel gear. The upper end of the rectangular movable frame 101 is provided with a third motor 104 for rotating the bevel gear around the axis. The left and right ends of the lower end surface of each rectangular movable frame 101 are respectively provided with a lifting rope 16 for connecting to the composite plate 13. The lifting rope 16 is one of a wire rope and an electric hoist. Preferably, it is an electric hoist. The third motor 104 drives the helical gear on the helical rack, which in turn drives the rectangular movable frame 101 to move left or right on the transverse support beam 9. The synchronized movement of the two rectangular movable frames 101 allows for fine-tuning of the lateral position of the laminated plate 13. Initially, the rectangular movable frame 101 is located in the middle of the transverse support beam 9. The configuration of the helical rack and helical gear enhances stability.

[0052] Further, as a specific embodiment, refer to Figure 4 and Figure 5The longitudinal fine-tuning assembly 11 includes a first telescopic cylinder and a second telescopic cylinder. The cylinder body of the first telescopic cylinder is hinged to the rear end of the first groove 7. The telescopic end of the first telescopic cylinder is hinged to the rear end of the vertical fine-tuning movable seat 81. The cylinder body of the second telescopic cylinder is hinged to the front end of the first groove 7. The telescopic end of the second telescopic cylinder is hinged to the front end of the vertical fine-tuning movable seat 81. The first telescopic cylinder and the second telescopic cylinder are alternately extended and retracted to perform interlocking movements. By the synchronous extension of the two first telescopic cylinders and the synchronous contraction of the two second telescopic cylinders, each of the vertical fine-tuning movable seats 81 is moved forward, thereby achieving the synchronous forward movement of the two transverse load-bearing beams 9, thereby achieving the longitudinal fine-tuning of the composite plate 13; by the synchronous contraction of the two first telescopic cylinders and the synchronous extension of the two second telescopic cylinders, each of the vertical fine-tuning movable seats 81 is moved backward, thereby achieving the synchronous backward movement of the two transverse load-bearing beams 9, thereby achieving the longitudinal fine-tuning of the composite plate 13. It should be noted that only fine adjustment is made in the longitudinal direction, with a stroke of 0-10 cm, to ensure the stability of the hanging of the composite plate 13.

[0053] Example 2

[0054] According to the working principle of Example 1, by controlling the operation of the first motor, the lower flange 24 can be driven to rotate horizontally around the Z axis, thereby realizing the adjustment of the horizontal angle of the overlapping plate 13. However, after the horizontal angle of the overlapping plate 13 is adjusted, the overlapping plate 13 will continue to rotate due to its inertia, which will drive the lower flange 24 to rotate, which may easily lead to inaccurate horizontal angle adjustment and damage the first motor.

[0055] The present invention provides a hoisting system for installing a prefabricated structure of an assembled building. Figure 1 、 Figure 2 and Figure 10 The horizontal angle adjustment mechanism 1 also includes a first locking component 3, which includes a first locking seat 31 arranged vertically, the upper end of the first locking seat 31 is connected to the lower end surface of the upper flange 22, and the lower end of the first locking seat 31 extends to the inner ring of the lower flange 24 through the inner ring of the slewing bearing 21, and the lower end of the first locking seat 31 is provided with a first upper clamp body 32 for limiting the rotation of the lower flange 24 under normal conditions, and a locking piece 34 is provided inside the first upper clamp body 32, and the locking piece 34 is in friction contact with the upper end surface of the lower flange 24 under normal conditions.

[0056] Further, as a specific embodiment, refer to Figure 10 and Figure 11The locking member 34 includes a first sliding cavity 341 provided inside the first upper caliper body 32. The length direction of the first sliding cavity 341 is vertically arranged. A piston 342 is adapted to be installed inside the first sliding cavity 341. The lower end surface of the first upper caliper body 32 is provided with a first circular opening for the piston 342 to pass through. A first sealing ring 343 is coaxially provided on the inner ring of the first circular opening. A second sealing ring 344 is coaxially provided on the upper end of the piston 342. The first sliding cavity 341 is located between the first sealing ring 343 and the second sealing ring 344. A hydraulic chamber 346 is formed in the part between 344, and a locking spring 345 is provided between the end of the piston 342 away from the lower flange 24 and the first sliding chamber 341; a hydraulic branch line 36 connected to the hydraulic chamber 346 is provided inside the first upper caliper body 32, and a hydraulic line 35 connected to the hydraulic branch line 36 is provided inside the first locking seat 31, and a hydraulic system 37 connected to the hydraulic line 35 is provided at the upper end of the upper flange 22; a friction plate 347 is provided at the end of the piston 342 close to the lower flange 24. When the first motor stops working, the hydraulic system 37 draws back the hydraulic oil in the hydraulic chamber 346 through the hydraulic pipeline 35 and the hydraulic branch pipeline 36 until the elastic force of the locking spring 345 can make the friction plate 347 tightly fit the upper end surface of the lower flange 24, thereby locking the lower flange 24; when the first motor needs to work, the hydraulic system 37 delivers hydraulic oil to the hydraulic chamber 346 through the hydraulic pipeline 35 and the hydraulic branch pipeline 36, so that the pressure in the hydraulic chamber 346 increases, thereby squeezing the locking spring 345, causing the piston 342 to move away from the lower flange 24, thereby releasing the lock on the lower flange 24 and facilitating the rotation of the lower flange 24.

[0057] Further, as a specific embodiment, refer to Figure 10 and Figure 12 The lower end of the first locking seat 31 is also provided with a first lower clamp body 33 for limiting the rotation of the lower flange 24 under normal conditions. A lower locking piece is provided inside the first lower clamp body 33. The lower locking piece is in frictional contact with the lower end surface of the lower flange 24 under normal conditions. The structure of the lower locking piece is the same as that of the above-mentioned locking piece 34, and will not be repeated here. Under normal circumstances, that is, when the first motor is not working, the elastic force of the locking spring 345 can make the two friction plates 347 tightly fit the upper and lower end surfaces of the lower flange 24, thereby locking the lower flange 24; when the first motor needs to work, the hydraulic system 37 can deliver hydraulic oil to the hydraulic pipeline 35 and the hydraulic branch pipeline 36, so that the pressure in the hydraulic chamber 346 increases, thereby squeezing the locking spring 345, causing the piston 342 to move away from the lower flange 24, and then contacting the upper and lower end surfaces of the lower flange 24 to lock, thereby facilitating the rotation of the lower flange 24. By adding the first lower clamp body 33, the locking force and stability of the first locking component 3 on the lower flange 24 are improved.

[0058] Furthermore, as a specific embodiment, a plurality of first locking components 3 are provided, and the plurality of first locking components 3 are arranged in sequence along the inner circumference of the lower flange 24 at equal intervals. Preferably, there are three first locking components 3, and the three first locking components 3 operate synchronously, with the circumferential angle between adjacent first locking components 3 being 120 degrees.

[0059] Example 3

[0060] According to the working principle of Example 1, the operation of the third motor 104 can drive the bevel gear to rotate on the bevel rack, and then drive the rectangular movable frame 101 to move left or right on the transverse load-bearing beam 9. The synchronous movement of the two rectangular movable frames 101 can realize the transverse fine-tuning of the composite plate 13. However, after the transverse fine-tuning, the composite plate 13 will continue to rotate due to its inertia, and at this time it will drive the rectangular movable frame 101 to continue to move transversely, which may easily lead to inaccurate transverse fine-tuning and damage the third motor 104, the bevel gear and the bevel rack.

[0061] The present invention provides a hoisting system for installing a prefabricated structure of an assembled building. Figure 6, the front and rear end surfaces of the rectangular movable frame 101 are also symmetrically provided with a second locking component 105, the second locking component 105 includes a second locking seat, the length direction of the second locking seat is arranged longitudinally, and a second locking piece is arranged at one end of the second locking seat near the transverse load-bearing beam 9. The second locking piece is in friction contact with the front and rear end surfaces of the transverse load-bearing beam 9 under normal conditions, and the second locking piece includes a third sliding cavity provided inside the second locking seat, the length direction of the third sliding cavity is arranged longitudinally, and a second piston is adapted inside the third sliding cavity, and a useful A second circular opening is provided for allowing the second piston to pass through, and a third sealing ring is coaxially arranged on the inner ring of the second circular opening. A fourth sealing ring is coaxially arranged on the end of the second piston away from the transverse load-bearing beam 9. The part of the third sliding cavity located between the third sealing ring and the fourth sealing ring forms a second hydraulic cavity. A second locking spring is provided between the end of the second piston away from the transverse load-bearing beam 9 and the third sliding cavity; a second hydraulic branch line connected to the second hydraulic cavity is provided inside the second locking seat, and the second hydraulic branch line is connected to the hydraulic system 37; a second friction plate is provided on the end of the second piston close to the transverse load-bearing beam 9. When the third motor 104 stops working, the hydraulic system 37 withdraws the hydraulic oil from the second hydraulic chamber through the second hydraulic branch line until the elastic force of the second locking spring can force the second friction plate to tightly fit the front and rear end surfaces of the transverse load-bearing beam 9, thereby locking the transverse load-bearing beam 9. When the third motor 104 needs to work, the hydraulic system 37 supplies hydraulic oil to the second hydraulic chamber through the second hydraulic branch line, increasing the pressure in the second hydraulic chamber, which in turn squeezes the second locking spring, causing the second piston to move away from the transverse load-bearing beam 9, thereby releasing the lock on the transverse load-bearing beam 9 and facilitating the movement of the rectangular movable frame. This improves the stability and accuracy of the rectangular movable frame 101 during hoisting.

[0062] The various technical features of the above-described embodiments can be arbitrarily combined. To make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-described embodiments merely illustrate the implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A hoisting system for installing prefabricated structures of assembled buildings, characterized in that: include A horizontal angle adjustment mechanism (1) comprises a rotating platform (2), wherein the rotating platform (2) comprises a slewing bearing (21), wherein an upper flange (22) for connecting to a tower crane rope is coaxially provided on an upper end face of an outer ring of the slewing bearing (21), and a lower flange (24) for connecting to a three-dimensional fine-tuning mechanism (4) is coaxially provided on a lower end face of an inner ring of the slewing bearing (21), and a first driving member (26) for driving the inner ring of the slewing bearing (21) to rotate around an axis is provided on the upper flange (22); A three-dimensional fine-tuning mechanism (4) comprises two longitudinal beams (5) arranged in a bilaterally symmetrical manner, wherein a first groove (7) is respectively arranged longitudinally on a side surface of the two longitudinal beams (5) close to each other, a vertical fine-tuning component is arranged in the first groove (7) along its length direction, two transverse bearing beams (9) are arranged symmetrically between the two vertical fine-tuning components to move toward or away from each other, and a transverse fine-tuning component (10) is respectively arranged on the two transverse bearing beams (9) to move synchronously and be connected to a composite plate (13), and a longitudinal fine-tuning component (11) is arranged at the front end and / or rear end of the first groove (7) to enable the vertical fine-tuning component to move longitudinally.

2. A hoisting system for installing a prefabricated structure of an assembled building according to claim 1, characterized in that: A plurality of lifting ropes (23) of equal length are arranged in sequence at equal intervals along the circumference of the upper end face edge of the upper flange (22), and the upper ends of the plurality of lifting ropes (23) are commonly connected to a lifting ring (27) for connecting with a tower crane rope.

3. The hoisting system for installing a prefabricated structure of an assembled building according to claim 1, characterized in that: The inner ring of the slewing support (21) is coaxially provided with an inner gear ring (25), the first driving member (26) includes a first motor and a first reducer provided on the upper end surface of the upper flange (22), the output shaft of the first reducer vertically extending downward to the inner ring of the slewing support (21) and coaxially provided with a first gear meshing with the inner gear ring (25).

4. The hoisting system for installing a prefabricated structure of an assembled building according to claim 1, characterized in that: The two ends of the two longitudinal beams (5) are respectively connected by a transverse connecting beam (6); the lower end face edge of the lower flange (24) is provided with four connecting rope bodies (28) of equal length at equal intervals along its circumference; the lower ends of the four connecting rope bodies (28) are respectively connected to the two ends of the upper end faces of the two transverse connecting beams (6).

5. The hoisting system for installing a prefabricated structure of an assembled building according to claim 1, characterized in that: The vertical fine-tuning assembly includes a vertical fine-tuning movable seat (81), the length direction of the vertical fine-tuning movable seat (81) is arranged along the length direction of the first groove (7), a second sliding cavity (82) is arranged inside the vertical fine-tuning movable seat (81) along its length direction, a screw rod (83) is arranged inside the second sliding cavity (82) along its length direction, and a first thread and a second thread are respectively arranged at the front and rear ends of the screw rod (83), the first thread and the second thread have the same pitch but opposite thread directions, a first ball nut slider (84) is adapted on the first thread, and a second ball nut slider (85) is adapted on the second thread, and a second driving member (86) for driving the screw rod (83) to rotate is also provided on the vertical fine-tuning movable seat (81).

6. A hoisting system for installing a prefabricated structure of an assembled building according to claim 5, characterized in that: A first guide support rod (88) is further provided inside the first groove (7) along its length direction, and a first guide sliding hole adapted to the first guide support rod (88) is provided inside the vertical fine-tuning movable seat (81) along its length direction.

7. The hoisting system for installing a prefabricated structure of an assembled building according to claim 5, characterized in that: A first rectangular opening (87) is respectively provided on one end surface of the two vertical fine-tuning movable seats (81) close to each other along the longitudinal direction. The two end portions of the rear transverse bearing beam (9) of the two transverse bearing beams (9) are respectively connected to the two first ball nut sliders (84), and the two end portions of the front transverse bearing beam (9) are respectively connected to the two second ball nut sliders (85).

8. The hoisting system for installing a prefabricated structure of an assembled building according to claim 7, characterized in that: A second guide support rod (12) is further provided inside the first groove (7) near its notch position along its length direction, and second guide sliding holes adapted to the second guide support rod (12) are respectively provided at both ends of each transverse load-bearing beam (9) along the longitudinal direction.

9. The hoisting system for installing a prefabricated structure of an assembled building according to claim 1, characterized in that: The transverse fine-tuning assembly (10) comprises a rectangular movable frame (101) sleeved on the transverse bearing beam (9), wherein the four transverse corner positions of the transverse bearing beam (9) are respectively provided with guide rails (103), and the front and rear inner walls of the rectangular movable frame (101) are respectively provided with guide support wheel bodies (102) adapted to the guide rails (103), and the upper end surface of the transverse bearing beam (9) is provided with a bevel rack in the transverse direction, and the bevel rack is engaged with a bevel gear, and the upper end of the rectangular movable frame (101) is provided with a third motor (104) for rotating the bevel gear around an axis, and the left and right ends of the lower end surface of each rectangular movable frame (101) are respectively provided with a hoisting rope (16) for connecting with the composite plate (13).

10. The hoisting system for installing a prefabricated building structure according to claim 5, characterized in that: The longitudinal fine-tuning assembly (11) includes a first telescopic cylinder and a second telescopic cylinder, wherein the cylinder body of the first telescopic cylinder is hinged to the rear end of the first groove (7), and the telescopic end of the first telescopic cylinder is hinged to the rear end of the vertical fine-tuning movable seat (81), and the cylinder body of the second telescopic cylinder is hinged to the front end of the first groove (7), and the telescopic end of the second telescopic cylinder is hinged to the front end of the vertical fine-tuning movable seat (81), and the first telescopic cylinder and the second telescopic cylinder are alternately telescoped and interlocked.

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