Self-balancing hoisting device for mounting large-span steel structure

Abstract

The invention belongs to the technical field of building machinery, and particularly relates to a self-balancing hoisting device for large-span steel structure installation, which comprises a hoisting assembly, the two ends of the hoisting assembly are slidably connected with linkage sliding sleeves, and the two sides of the outer wall of each linkage sliding sleeve are fixedly connected with an auxiliary hoisting beam; the linkage assemblies are used in cooperation to form a plurality of sets of V-shaped bearing structures for bearing H-shaped steel, the bottom distance between the two linkage assemblies can be adjusted through continuous rotation of the lead screws, and the metal stretching net can be continuously stretched in the process; a box beam or a special-shaped component with a large size is placed on the two linkage assemblies and the metal stretching net, hoisting operation of a large-span steel structure in the installation process is compatible, the linkage sliding sleeves can drive the auxiliary hoisting beams on the two sides to move to different positions of the hoisting assemblies, the hoisting device can be self-balanced, and the hoisting efficiency is improved. And the stability of the large-span steel structure in the hoisting process is improved, and the adaptability to special-shaped and asymmetric steel structures is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of construction machinery, and in particular relates to a self-balancing hoisting device for installing a large-span steel structure. Background Art

[0002] Existing self-balancing lifting devices are particularly suitable for the precise lifting and posture adjustment of large-span steel structures such as industrial plants, stadiums, and bridges. They solve problems such as structural tilt, low installation efficiency, and safety hazards caused by center of gravity offset during traditional lifting processes.

[0003] After searching, in the prior art, Chinese patent publication number CN219489345U, authorization announcement date: 2023--08--08, discloses a large-span steel component lifting device. In view of the problems in the existing technology of using two trolleys for lifting, high lifting cost, and fixing the component only from both ends, the component is prone to shaking and falling, the following scheme is proposed, which includes a column, the top of the column is rotatably connected to a steering rod, the bottom of the steering rod is fixedly connected to multiple first connecting blocks, the bottoms of the multiple first connecting blocks are fixedly connected to a base plate, and a lifting assembly for lifting is provided in the base plate. In this application, the entire lifting process can be completed by the operation of only one operating vehicle. At the same time, the cooperation of multiple first ropes can fix the four sides of the steel component to prevent the steel component from shaking. The cooperation of the second rope and multiple third ropes prevents the steel component from rotating during lifting. The entire lifting cost is relatively low, and the connection of the steel component is more stable.

[0004] However, the equipment still has the following defects: although it can make the connection of steel components more stable, during the hoisting process of building steel structures, different types of large-span steel structures need to be hoisted. Only by providing limiting components in the connection frame, different types of large-span steel structures cannot be stably hoisted, and the compatibility and adaptability of use are generally poor. Summary of the Invention

[0005] In response to the above problems, the present invention provides a self-balancing lifting device for installing large-span steel structures, including a lifting assembly, both ends of the lifting assembly are slidably connected with a linkage sleeve, and both sides of the outer wall of the linkage sleeve are fixedly connected with an auxiliary lifting beam, the end of the auxiliary lifting beam and the side away from the linkage sleeve, as well as both sides of the lifting assembly are rotatably connected to form a linkage assembly that supports different steel structures, the bottom end of the linkage assembly is provided with a metal stretch mesh, and the bottom of the linkage assembly is penetrated by a first positioning rod and a second positioning rod, the first positioning rod and the second positioning rod are threadedly connected with a screw rod, and the thread directions of the first positioning rod and the second positioning rod are opposite, and hand wheels are provided at both ends of the screw rod.

[0006] Furthermore, the hoisting assembly includes a main boom; both ends of the main boom are fixedly connected with positioning shafts, and two groups of guide beams are fixedly connected to the outer wall of the main boom near the central axis.

[0007] Furthermore, the outer walls of the two groups of guide beams are provided with guide grooves, and a reinforcing beam is welded at the connection between the guide beam and the main boom. Two groups of laser rangefinders are embedded and installed on the outer wall of the main boom and on one side close to the reinforcing beam.

[0008] Furthermore, the two groups of laser rangefinders are symmetrically arranged with the central axis of the main boom as the center, a hook is provided at the center of the top central axis of the main boom, and a traction member is provided between the bottom of the hook and the top of the main boom and the guide beam.

[0009] Furthermore, the signal output end of the laser rangefinder is arranged at the same level as the outer wall of the auxiliary suspension beam.

[0010] Furthermore, the linkage assembly includes a linkage arm; a storage cavity is opened at one end of the linkage arm, and the storage cavity is movably connected to both sides of the outer wall of the main boom.

[0011] Furthermore, two groups of positioning holes are opened on the outer wall of the linkage arm, and the two groups of positioning holes are interconnected with the storage cavity. The two groups of positioning holes are rotatably connected to the positioning shaft, and a linkage plate is connected through the end of the linkage arm and the side away from the storage cavity.

[0012] Furthermore, one end of the linkage plate extends into the receiving cavity, and the end of the linkage plate and one side close to the receiving cavity are fixedly connected to a limiting block.

[0013] Furthermore, the cross-sectional size of the limit block is larger than that of the linkage plate, the other end of the linkage plate is fixedly connected with a positioning sleeve, and the inner wall of the positioning sleeve is slidably connected to the first positioning rod or the second positioning rod.

[0014] Furthermore, a hydraulic cylinder is embedded in the end of the linkage arm and away from the side of the storage cavity, the output end of the hydraulic cylinder is transmission-connected to a locking block, and an electromagnetic suction cup is embedded in the outer wall of the locking block and close to the side of the positioning sleeve.

[0015] The beneficial effects of the present invention are:

[0016] 1. Through the coordinated use of linkage components, multiple groups of V-shaped load-bearing structures are formed to carry H-shaped steel. The continuous rotation of the screw rod can adjust the bottom spacing between the two groups of linkage components, and in this process, the metal stretching mesh can be continuously stretched, so that larger box beams or special-shaped components can be placed on the two groups of linkage components and the metal stretching mesh, which is compatible with the hoisting operation of large-span steel structures during installation. The linkage sliding sleeve can drive the auxiliary lifting beams on both sides to move to different positions of the hoisting components, and can self-balance the hoisting device, thereby improving the stability of large-span steel structures during the lifting process and improving the adaptability to special-shaped and asymmetric steel structures.

[0017] 2. The laser rangefinders on both sides of the main boom can also measure the distance between the main boom and the auxiliary booms on both sides at all times. If the distances measured by the two sets of laser rangefinders are inconsistent, the linkage sleeves on both sides can be moved so that the linkage sleeves are connected to the guide beams in the process of sliding, and the measured values ​​of the laser rangefinders can be changed until the measured values ​​of the two sets of laser rangefinders are consistent. This is used to adjust the auxiliary booms on both sides to the same position on the outer wall of the guide beam, and then rotate the fastening bolts so that their ends contact the positioning rods, thereby improving the anti-falling performance of the lifting device after it is in self-balancing.

[0018] 3. By rotating the screw rod to one side, the first positioning rod and the second positioning rod are brought closer to each other, so that several groups of positioning sleeves are fitted and connected to form a V-shaped bearing groove, which is convenient for horizontally clamping the two ends of the H-shaped steel at the connection between the linkage plate and the positioning sleeve, and then using the output end of the hydraulic cylinder to push the locking block to limit the two side walls of the H-shaped steel, so that the H-shaped steel is in a stable state during the lifting process, which can achieve the effect of stable lifting of large-span H-shaped steel.

[0019] 4. By rotating the screw rod to the other side, the first positioning rod and the second positioning rod are brought closer to each other, and several groups of positioning sleeves are separated from each other to form a gap at the right angle of the box beam, which is convenient for horizontally clamping the box beam between several groups of positioning sleeves, and then using the output end of the hydraulic cylinder to push the locking block, so that the electromagnetic suction cup is electromagnetically adsorbed to different positions of the outer wall of the box beam, so that the box beam is in a stable state during the hoisting process, which can achieve the effect of stable hoisting of large-span box beams.

[0020] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic structural diagram of a self-balancing hoisting device according to an embodiment of the present invention is shown;

[0023] Figure 2 A schematic diagram showing the connection between the linkage assembly and the positioning rod according to an embodiment of the present invention is shown;

[0024] Figure 3 A schematic diagram showing the connection of the linkage sleeve, the auxiliary suspension beam and the linkage assembly according to an embodiment of the present invention is shown;

[0025] Figure 4 A schematic diagram of the hoisting of H-beam according to an embodiment of the present invention is shown;

[0026] Figure 5 A schematic diagram of hoisting a box beam according to an embodiment of the present invention is shown;

[0027] Figure 6 A schematic structural diagram of a hoisting assembly according to an embodiment of the present invention is shown;

[0028] Figure 7 A schematic structural diagram of a linkage component according to an embodiment of the present invention is shown.

[0029] In the figure: 1. Hoisting assembly; 11. Main lifting arm; 12. Positioning shaft; 13. Guide beam; 14. Guide groove; 15. Reinforcement beam; 16. Laser rangefinder; 17. Hook; 18. Traction piece; 2. Linkage sleeve; 3. Auxiliary lifting beam; 4. Linkage assembly; 41. Linkage arm; 42. Storage cavity; 43. Positioning hole; 44. Linkage plate; 45. Positioning sleeve; 46. Limit block; 47. Hydraulic cylinder; 48. Locking block; 49. Electromagnetic suction cup; 5. Metal stretching mesh; 6. First positioning rod; 7. Second positioning rod; 8. Screw. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0031] The embodiment of the present invention provides a self-balancing hoisting device for installing a large-span steel structure, including a hoisting assembly 1; for example, Figure 1 、 Figure 2 and Figure 3 shown.

[0032] Both ends of the lifting component 1 are slidably connected with a linkage sleeve 2, and both sides of the outer wall of the linkage sleeve 2 are fixedly connected with an auxiliary lifting beam 3, the end of the auxiliary lifting beam 3 and the side away from the linkage sleeve 2, as well as both sides of the lifting component 1 are rotatably connected with a linkage component 4 that supports different steel structures, the bottom end of the linkage component 4 is provided with a metal stretching mesh 5, and the bottom of the linkage component 4 is penetrated by a first positioning rod 6 and a second positioning rod 7, the first positioning rod 6 and the second positioning rod 7 are threadedly connected with a screw rod 8, and the thread directions of the first positioning rod 6 and the second positioning rod 7 are opposite, and hand wheels are provided at both ends of the screw rod 8.

[0033] Specifically, the linkage components 4 are used in conjunction with each other to form multiple groups of V-shaped load-bearing structures for bearing H-shaped steel, and the continuous rotation of the screw rod 8 can adjust the bottom spacing between the two groups of linkage components 4, and in this process can continuously stretch the metal stretching mesh 5, so that larger box beams or special-shaped components can be placed on the two groups of linkage components 4 and the metal stretching mesh 5, which is compatible with the lifting operation of large-span steel structures during installation, and the linkage sleeve 2 can drive the auxiliary lifting beams 3 on both sides to move to different positions of the lifting component 1, and can self-balance the lifting device to improve the stability of the large-span steel structure during the lifting process.

[0034] The hoisting assembly 1 includes a main boom 11; for example, Figure 6 shown.

[0035] Both ends of the main boom 11 are fixedly connected to a positioning shaft 12, and two groups of guide beams 13 are fixedly connected to the outer wall of the main boom 11 near the central axis, and the outer walls of the two groups of guide beams 13 are provided with guide grooves 14, and a reinforcing beam 15 is welded at the connection between the guide beam 13 and the main boom 11. Two groups of laser rangefinders 16 are embedded and installed on the outer wall of the main boom 11 and on one side close to the reinforcing beam 15. The two groups of laser rangefinders 16 are symmetrically arranged with the central axis of the main boom 11 as the center, and a hook 17 is provided at the center of the central axis of the top of the main boom 11, and a traction member 18 is provided between the bottom of the hook 17 and the top of the main boom 11 and the guide beam 13.

[0036] Furthermore, the signal output end of the laser rangefinder 16 is arranged at the same level as the outer wall of the auxiliary suspension beam 3 .

[0037] The linkage assembly 4 includes a linkage arm 41; illustratively, as Figure 7 shown.

[0038] One end of the linkage arm 41 is provided with a storage cavity 42, and the storage cavity 42 is movably connected to both sides of the outer wall of the main boom 11. The outer wall of the linkage arm 41 is provided with two groups of positioning holes 43, and the two groups of positioning holes 43 are communicated with the storage cavity 42. The two groups of positioning holes 43 are rotatably connected to the positioning shaft 12. The end of the linkage arm 41 and the side away from the storage cavity 42 are connected with a linkage plate 44. One end of the linkage plate 44 extends into the storage cavity 42, and the end of the linkage plate 44 is close to the storage cavity 42. One side of the linkage arm 41 is fixedly connected to a limit block 46, the cross-sectional size of the limit block 46 is larger than the linkage plate 44, the other end of the linkage plate 44 is fixedly connected to a positioning sleeve 45, and the inner wall of the positioning sleeve 45 is slidably fitted with the first positioning rod 6 or the second positioning rod 7, the end of the linkage arm 41 and the side away from the storage chamber 42 is embedded with a hydraulic cylinder 47, the output end of the hydraulic cylinder 47 is transmission-connected with a locking block 48, and the outer wall of the locking block 48 and the side close to the positioning sleeve 45 are embedded with an electromagnetic suction cup 49.

[0039] Furthermore, a fastening bolt is threadedly connected to the outer wall of the positioning sleeve 45 , and one end of the fastening bolt is in contact with the outer wall of the first positioning rod 6 or the second positioning rod 7 .

[0040] Specifically, the screw rod 8 rotates to one side, so that the first positioning rod 6 and the second positioning rod 7 are close to each other, so that the plurality of positioning sleeves 45 are connected together to form a V-shaped bearing groove, which facilitates the horizontal clamping of the two ends of the H-shaped steel at the connection between the linkage plate 44 and the positioning sleeve 45, and then the output end of the hydraulic cylinder 47 is used to push the locking block 48 to limit and clamp the two side walls of the H-shaped steel, so that the H-shaped steel is in a stable state during the lifting process;

[0041] The screw rod 8 rotates to the other side, so that the first positioning rod 6 and the second positioning rod 7 are close to each other, so that the plurality of positioning sleeves 45 are separated from each other to form a gap at the right angle of the box beam, which facilitates the horizontal clamping of the box beam between the plurality of positioning sleeves 45. The output end of the hydraulic cylinder 47 pushes the locking block 48, so that the electromagnetic suction cup 49 is electromagnetically attracted to different positions of the outer wall of the box beam, so that the box beam is in a stable state during the hoisting process.

[0042] The screw rod 8 continues to rotate toward the other side, so that the gaps between the plurality of positioning sleeves 45 separated from each other gradually widen, until the positioning sleeves 45 on both sides stretch the metal stretching mesh 5 apart, thereby forming a mesh structure for carrying special-shaped components, so that large-sized special-shaped components can be placed on top of the metal stretching mesh 5, so that the special-shaped components are in a stable state during the lifting process;

[0043] The laser rangefinders 16 on both sides of the main boom 11 can also measure the distance between the main boom 11 and the auxiliary booms 3 on both sides at all times. If the distances measured by the two sets of laser rangefinders 16 are inconsistent, the linkage sleeves 2 on both sides can be moved so that the linkage sleeves 2 can change the measurement values ​​of the laser rangefinders 16 during the process of sliding connection to the guide beam 13 until the measurement values ​​of the two sets of laser rangefinders 16 are consistent, which is used to adjust the auxiliary booms 3 on both sides to the same position on the outer wall of the guide beam 13, so that the lifting device is in a self-balancing state.

[0044] The self-balancing hoisting device for installing a large-span steel structure proposed by the embodiment of the present invention has the following working principle:

[0045] By rotating the screw rod 8 to one side, the first positioning rod 6 and the second positioning rod 7 are brought closer to each other, so that a plurality of positioning sleeves 45 are connected and fitted to form a V-shaped bearing groove, which facilitates the horizontal clamping of the two ends of the H-shaped steel at the connection between the linkage plate 44 and the positioning sleeve 45, and then the output end of the hydraulic cylinder 47 is used to push the locking block 48 to limit and clamp the two side walls of the H-shaped steel, so that the H-shaped steel is in a stable state during the lifting process; (for example, Figure 4 shown)

[0046] By rotating the screw rod 8 to the other side, the first positioning rod 6 and the second positioning rod 7 are brought closer to each other, so that the plurality of positioning sleeves 45 are separated from each other to form a gap at the right angle of the box beam, which facilitates the horizontal clamping of the box beam between the plurality of positioning sleeves 45. The output end of the hydraulic cylinder 47 is then used to push the locking block 48, so that the electromagnetic suction cup 49 is electromagnetically attracted to different positions of the outer wall of the box beam, so that the box beam is in a stable state during the hoisting process. (For example, Figure 5 shown)

[0047] By continuously rotating the screw rod 8 toward the other side, the gaps between the plurality of positioning sleeves 45 separated from each other are gradually widened until the positioning sleeves 45 on both sides stretch the metal stretching mesh 5 apart, thereby forming a mesh structure for carrying special-shaped components. This allows large-sized special-shaped components to be placed on top of the metal stretching mesh 5, keeping the special-shaped components in a stable state during the hoisting process.

[0048] The laser rangefinders 16 on both sides of the main boom 11 can also measure the distance between the main boom 11 and the auxiliary booms 3 on both sides at all times. If the distances measured by the two sets of laser rangefinders 16 are inconsistent, the linkage sleeves 2 on both sides can be moved so that the linkage sleeves 2 can change the measurement values ​​of the laser rangefinders 16 during the process of sliding connection to the guide beam 13 until the measurement values ​​of the two sets of laser rangefinders 16 are consistent, which is used to adjust the auxiliary booms 3 on both sides to the same position on the outer wall of the guide beam 13, so that the lifting device is in a self-balancing state.

[0049] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A self-balancing hoisting device for installing a large-span steel structure, characterized by: The invention comprises a hoisting assembly (1), wherein both ends of the hoisting assembly (1) are slidably connected to a linkage sleeve (2), and both sides of the outer wall of the linkage sleeve (2) are fixedly connected to a secondary hanging beam (3), the end of the secondary hanging beam (3) and the side away from the linkage sleeve (2), as well as both sides of the hoisting assembly (1) are rotatably connected to form a linkage assembly (4) for carrying different steel structures, the bottom end of the linkage assembly (4) is provided with a metal stretching net (5), the bottom of the linkage assembly (4) is penetrated by a first positioning rod (6) and a second positioning rod (7), the first positioning rod (6) and the second positioning rod (7) are threadedly connected to a screw rod (8), and the thread directions of the first positioning rod (6) and the second positioning rod (7) are opposite, and both ends of the screw rod (8) are provided with a hand wheel.

2. The self-balancing hoisting device for installing a large-span steel structure according to claim 1 is characterized in that: The hoisting assembly (1) comprises a main boom (11); both ends of the main boom (11) are fixedly connected to positioning shafts (12); and two groups of guide beams (13) are fixedly connected to the outer wall of the main boom (11) near the central axis.

3. The self-balancing hoisting device for installing a large-span steel structure according to claim 2, characterized in that: The outer walls of the two groups of guide beams (13) are both provided with guide grooves (14); a reinforcing beam (15) is welded at the connection between the guide beams (13) and the main boom (11); and two groups of laser rangefinders (16) are embedded and installed on the outer wall of the main boom (11) and on one side close to the reinforcing beam (15).

4. The self-balancing hoisting device for installing a large-span steel structure according to claim 3 is characterized in that: The two groups of laser rangefinders (16) are symmetrically arranged with the central axis of the main boom (11) as the center. A hook (17) is provided at the center of the central axis of the top of the main boom (11). A traction member (18) is provided between the bottom of the hook (17) and the top of the main boom (11) and the guide beam (13).

5. The self-balancing hoisting device for installing a large-span steel structure according to claim 4, characterized in that: The signal output end of the laser rangefinder (16) is arranged at the same level as the outer wall of the auxiliary suspension beam (3).

6. The self-balancing hoisting device for installing a large-span steel structure according to claim 1, characterized in that: The linkage assembly (4) comprises a linkage arm (41); a receiving cavity (42) is provided at one end of the linkage arm (41), and the receiving cavity (42) is movably connected to both sides of the outer wall of the main boom (11).

7. The self-balancing hoisting device for installing a large-span steel structure according to claim 6, characterized in that: Two groups of positioning holes (43) are provided on the outer wall of the linkage arm (41), and the two groups of positioning holes (43) are communicated with the receiving chamber (42). The two groups of positioning holes (43) are rotatably connected to the positioning shaft (12). A linkage plate (44) is connected through the end of the linkage arm (41) and the side away from the receiving chamber (42).

8. The self-balancing hoisting device for installing a large-span steel structure according to claim 7, characterized in that: One end of the linkage plate (44) extends into the receiving cavity (42), and the end of the linkage plate (44) and one side close to the receiving cavity (42) are fixedly connected to a limiting block (46).

9. The self-balancing hoisting device for installing a large-span steel structure according to claim 8, characterized in that: The cross-sectional size of the limit block (46) is larger than that of the linkage plate (44); the other end of the linkage plate (44) is fixedly connected with a positioning sleeve (45); and the inner wall of the positioning sleeve (45) is slidably connected to the first positioning rod (6) or the second positioning rod (7).

10. The self-balancing hoisting device for installing a large-span steel structure according to claim 9, characterized in that: A hydraulic cylinder (47) is embedded and installed at the end of the linkage arm (41) and on the side away from the storage chamber (42); the output end of the hydraulic cylinder (47) is transmission-connected to a locking block (48); an electromagnetic suction cup (49) is embedded and installed on the outer wall of the locking block (48) and on the side close to the positioning sleeve (45).

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