Steel structure profile hoisting device

Abstract

The invention provides a steel structure profile hoisting device, and relates to the technical field of steel structure hoisting. The steel structure profile hoisting device comprises a hoisting buckle, the lower end of the hoisting buckle is fixedly connected with an adjusting section rope, the lower end of the adjusting section rope is fixedly connected with a gravity center adjusting sleeve, the inner side of the lower end of the gravity center adjusting sleeve is slidably connected with a cross beam frame, and the lower end of the cross beam frame is fixedly connected with a stress steel framework. According to the steel structure profile hoisting device, the shoveling plate is arranged below the embedding arm, so that the shoveling plate can be inserted into a profile gap, stacked profiles can be shoveled up, the shoveled-up profiles are wrapped and clamped from the two sides by arranging the grabbing tooth claws, and the two sets of grabbing tooth claws are arranged at the two ends of the device, so that one ends of the profiles are prevented from rising and sliding off; the sectional material is prevented from inclining and slipping off in the hoisting process, the situation that one end of the scattered sectional material is raised and slips off after being hoisted is prevented, and the problem that one end of the sectional material is raised and slips off in the carrying and hoisting process is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure hoisting, and particularly to a steel structure profile hoisting device. Background Technique

[0002] Profiles are objects with a certain geometric shape made of iron, steel, or materials with certain strength and toughness through processes such as rolling, extrusion, and casting. Such materials have certain external dimensions, a certain cross-sectional shape, and certain mechanical and physical properties. Profiles can be used alone or further processed into other manufactured products, and are commonly used in building structures and manufacturing installations.

[0003] Through retrieval, Chinese Patent Publication No. CN118753966B discloses a steel structure profile hoisting device, which relates to the field of hoisting machinery. This steel structure profile hoisting device includes symmetrically arranged fixed frames. A winding wheel is rotatably connected to the rear end of the middle part of the fixed frame. A reversing wheel is fixedly installed at the front end of the fixed frame. A hoisting rope is wound around the outer surface of the winding wheel. The hoisting rope bypasses the reversing wheel and extends downward. The bottom end of the hoisting rope is fixedly connected to a hoisting frame. Chain wheels are rotatably connected to both sides of the reversing wheel. A chain is wound around the outer surface of the winding wheel. The chain is in transmission connection with the chain wheels. The bottom end of the chain is connected to the hoisting frame. In this steel structure profile hoisting device, by setting a chain that moves synchronously with the hoisting rope to pull the hoisting frame, when the hoisting profile deflects, the chain can be bent but cannot deflect, so as to limit the about-to-deflect hoisting part, thereby avoiding the profile from deflecting and falling off during the hoisting process.

[0004] When hoisting steel structure profiles, since the profiles are relatively long, they need to be clamped in the middle section of the profile to be balanced. The clamping position needs to be judged by the hoisting personnel. It is more difficult to adjust the clamping position again after clamping and lifting, and it is necessary to re-clamp, which affects the operation efficiency. In addition, after the steel structure profiles are stacked, they need to be bundled before they can be conveniently grabbed and lifted. Otherwise, the profiles are likely to slip during the hoisting process. In addition, when using clamping jaws to grab the profiles, it is easy to grab the profile body, resulting in the problem that the clamping jaws are blocked and cannot continue to extend. For this reason, a steel structure profile hoisting device is proposed. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a steel structure profile hoisting device, which solves the problems raised in the above background technique.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A steel structure profile hoisting device includes a hoisting buckle. A regulating section rope is fixedly connected to the lower end of the hoisting buckle. A center-of-gravity adjusting sleeve is fixedly connected to the lower end of the regulating section rope. A crossbeam frame is slidably connected to the inner side of the lower end of the center-of-gravity adjusting sleeve. A stress steel framework is fixedly connected to the lower end of the crossbeam frame. A grasping motor is fixedly connected to the inner side of the stress steel framework. A transmission component is fixedly connected to the output end of the grasping motor. A grasping claw is connected to the outer surface of the transmission component. The grasping claw is slidably connected to the inner side of the stress steel framework. Fitting arms are rotatably connected to both sides of the stress steel framework. A traction frame is sleeved on the upper end of the fitting arm. The traction frame is slidably connected to the sliding rod of the crossbeam frame. A leading plate is fixedly connected to the outer surface of the traction frame. The leading plate is sleeved on the outside of the regulating section rope.

[0007] Preferably, the center of the regulating section rope is a bendable steel wire rope. A circular ring sleeve is arranged on the outside of the steel wire rope of the regulating section rope. A limiting and blocking block is rotatably connected to the outside of the circular ring sleeve.

[0008] Preferably, the center-of-gravity adjusting sleeve includes a cover plate. A sliding sleeve housing is arranged on the lower surface of the cover plate. An adjusting motor is fixedly connected to the upper surface of the cover plate. A first driving gear is fixedly connected to the output end of the adjusting motor. A first traveling gear is meshed with one side of the first driving gear. A transfer gear is meshed with the other side of the first driving gear. A second traveling gear is meshed with the side of the transfer gear away from the first driving gear. The regulating section rope is fixedly connected to the upper surface of the cover plate. Both the first traveling gear and the second traveling gear are rotatably connected to the lower surface of the cover plate.

[0009] Preferably, tooth teeth are arranged on both sides of the upper end of the crossbeam frame and are respectively meshed with the first traveling gear and the second traveling gear. Stress sliding grooves are arranged on both sides of the crossbeam frame. The sliding sleeve housing is slidably connected to the stress sliding grooves. Circular holes are arranged at both ends of the crossbeam frame.

[0010] Preferably, the stress steel framework includes a connecting block. The upper end of the connecting block is fixedly connected to the crossbeam frame. The lower end of the connecting block is fixedly connected to a wrapping shell. The wrapping shell wraps the outside of the grasping claw. Support frames are fixedly connected to both sides of the connecting block. A power housing is fixedly connected to the outside of the connecting block. The grasping motor is inside the power housing.

[0011] Preferably, the transmission component includes an outer component, a central component, and an output bevel gear. One end of the outer component is a bevel gear, and the other end is a spur gear. The bevel gear and the spur gear of the outer component are connected by a round tube. The bevel gear of the outer component is meshed with the output bevel gear. The spur gear of the outer component is meshed with the grasping claw. The center of the central component is a round rod. One end of the round rod of the central component is a bevel gear, and the other end is a spur gear. The bevel gear of the central component is meshed with the output bevel gear. The spur gear of the central component is meshed with the grasping claw. The output bevel gear is fixedly connected to the output end of the grasping motor. The outer component is sleeved on the outside of the central component. The outer component is rotatably connected to the wrapping shell.

[0012] Preferably, the outer shape of the grasping tooth claws is arc-shaped, tooth teeth are arranged on the outer side of the grasping tooth claws, there are two groups of grasping tooth claws, and the two groups of grasping tooth claws are respectively meshed with the central component of the peripheral component. A sharp corner is arranged at the lower end of the grasping tooth claws to facilitate insertion into the gap of the steel structure profile.

[0013] Preferably, the middle section of the fitting arm is rotatably connected to the support frame. An activity groove is arranged at the upper end of the fitting arm, and the traction frame penetrates through the inner side of the activity groove. A shovel plate is arranged at the lower end of the traction frame.

[0014] Preferably, the center of the traction frame is a round rod, the traction frame is slidably connected to the round hole, and traction rings are arranged on both sides of the upper end of the traction frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. For this steel structure profile hoisting device, by arranging a shovel plate below the fitting arm, the shovel plate can be inserted into the gap of the profile, so that the stacked profiles can be shoveled up. By arranging grasping tooth claws, the shoveled-up profiles can be wrapped from both sides. By arranging two groups of grasping tooth claws at both ends of the device, it is prevented that one end of the profile is lifted and slides off, so that the profile will not tilt and slide during the hoisting process, achieving the prevention of the situation that one end of the scattered profile is lifted and slides off after being hoisted, and solving the problem that one end of the profile tilts and then slides off during the handling and hoisting process.

[0017] 2. For this steel structure profile hoisting device, by arranging a gravity adjustment sleeve on the surface of the crossbeam frame, the hoisting force-bearing position during the profile hoisting process can be adjusted within a reasonable range, preventing the situation that the profile tilts after being hoisted due to the inability to accurately judge the center position of the profile during hoisting, and solving the problem that it is impossible to ensure accurate clamping in the middle section of the profile when the profile is long.

[0018] 3. For this steel structure profile hoisting device, by arranging the fitting arm to be pre-inserted into the gap of the profile, the position and quantity of grasping can be determined for the stacked profiles before grasping, preventing the problem that the grasping tooth claws grasp on the profile body and cannot wrap or fix the profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is the schematic diagram of the adjusting section rope structure of the present invention;

[0021] Figure 3 is the schematic diagram of the fitting arm structure of the present invention;

[0022] Figure 4 is the schematic diagram of the peripheral component structure of the present invention;

[0023] Figure 5 is the schematic diagram of the force-bearing steel skeleton structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the pre - driving plate structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the first - stage traveling gear structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the traction frame structure of the present invention.

[0027] In the figure: 1. Lifting buckle;

[0028] 2. Adjusting section rope; 21. Ring sleeve; 22. Limit blocking block;

[0029] 3. Gravity - center adjusting sleeve; 31. Cover plate; 32. Sliding sleeve housing; 33. Adjusting motor; 34. First driving gear; 35. First traveling gear; 36. Intermediate gear; 37. Second traveling gear;

[0030] 4. Cross - beam frame; 41. Force - bearing chute; 42. Round hole;

[0031] 5. Force - bearing steel skeleton; 51. Connecting block; 52. Wrapping shell; 53. Support frame; 54. Power housing;

[0032] 6. Gripping motor;

[0033] 7. Transmission assembly; 71. Peripheral assembly; 72. Central assembly; 73. Output bevel gear;

[0034] 8. Gripping tooth claw;

[0035] 9. Fitting arm; 91. Activity slot; 92. Shoveling plate;

[0036] 10. Traction frame; 101. Traction ring;

[0037] 11. Pre - driving plate. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0039] It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative position relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.

[0040] In this application, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In addition, in this application, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0042] As Figure 1-8 shown, a hoisting device for steel structure profiles includes a hoisting buckle 1. A regulating section rope 2 is fixedly connected to the lower end of the hoisting buckle 1. A center-of-gravity adjusting sleeve 3 is fixedly connected to the lower end of the regulating section rope 2. A cross beam frame 4 is slidably connected to the inner side of the lower end of the center-of-gravity adjusting sleeve 3. The center-of-gravity adjusting sleeve 3 includes a cover plate 31. A sliding sleeve housing 32 is arranged on the lower surface of the cover plate 31. An adjusting motor 33 is fixedly connected to the upper surface of the cover plate 31. A first driving gear 34 is fixedly connected to the output end of the adjusting motor 33. A first traveling gear 35 is meshed with one side of the first driving gear 34. A transfer gear 36 is meshed with the other side of the first driving gear 34. A second traveling gear 37 is meshed with the side of the transfer gear 36 away from the first driving gear 34. The regulating section rope 2 is fixedly connected to the upper surface of the cover plate 31. Both the first traveling gear 35 and the second traveling gear 37 are rotatably connected to the lower surface of the cover plate 31. The center-of-gravity adjusting sleeve 3 can change the position of the hoisting force by moving on the surface of the cross beam frame 4, so that when the profiles are inclined during the hoisting process, the center-of-gravity adjusting sleeve 3 can be moved to adjust and align, preventing the situation of profile inclination.

[0043] Tooth teeth are arranged on both sides of the upper end of the cross beam frame 4 and are respectively meshed with the first traveling gear 35 and the second traveling gear 37. Force receiving sliding grooves 41 are arranged on both sides of the cross beam frame 4. The sliding sleeve housing 32 is slidably connected with the force receiving sliding grooves 41. Round holes 42 are arranged at both ends of the cross beam frame 4. The cross beam frame 4 can support the grabbing mechanism below, enabling the device to complete grabbing above the profiles and providing a range for the lateral movement of the center-of-gravity adjusting sleeve 3.

[0044] The lower end of the crossbeam frame 4 is fixedly connected with a stress steel framework 5. Inside the stress steel framework 5, a grasping motor 6 is fixedly connected. The stress steel framework 5 includes a connecting block 51. The upper end of the connecting block 51 is fixedly connected with the crossbeam frame 4. The lower end of the connecting block 51 is fixedly connected with a wrapping shell 52. The wrapping shell 52 wraps around the outside of the grasping claws 8. On both sides of the connecting block 51, a support frame 53 is fixedly connected. Outside the connecting block 51, a power shell 54 is fixedly connected. The grasping motor 6 is inside the power shell 54. The stress steel framework 5 plays a role in support and connection, and can limit the sliding of the grasping claws 8.

[0045] The output end of the grasping motor 6 is fixedly connected with a transmission component 7. The outer surface of the transmission component 7 is connected with grasping claws 8. The transmission component 7 includes an outer peripheral component 71, a central component 72 and an output bevel gear 73. One end of the outer peripheral component 71 is a bevel gear, and the other end is a spur gear. The bevel gear and the spur gear of the outer peripheral component 71 are connected by a round tube. The bevel gear of the outer peripheral component 71 meshes with the output bevel gear 73. The spur gear of the outer peripheral component 71 meshes with the grasping claws 8. The center of the central component 72 is a round rod. One end of the round rod of the central component 72 is a bevel gear, and the other end is a spur gear. The bevel gear of the central component 72 meshes with the output bevel gear 73. The spur gear of the central component 72 meshes with the grasping claws 8. The output bevel gear 73 is fixed to the output end of the grasping motor 6. The outer peripheral component 71 is sleeved outside the central component 72. The outer peripheral component 71 is rotationally connected with the wrapping shell 52. The transmission component 7 can use the output bevel gear 73 to simultaneously push the outer peripheral component 71 and the central component 72 to rotate, so that the outer peripheral component 71 and the central component 72 can rotate in different directions, so that the two grasping claws 8 in the same group can rotate in different directions at the same time, so that the two grasping claws 8 can wrap the steel structure profile by rotating, so that the profile will not slip due to tilting and lifting.

[0046] The grasping claws 8 are slidably connected inside the stress steel framework 5. The shape of the grasping claws 8 is arc-shaped. Teeth are arranged on the outside of the grasping claws 8. There are two groups of grasping claws 8. The two groups of grasping claws 8 are respectively meshed with the outer peripheral component 71 and the central component 72. A sharp angle is arranged at the lower end of the grasping claws 8 to facilitate insertion into the gap of the steel structure profile. The grasping claws 8 can wrap around the outside of the steel structure profile by rotating downward, so that the profile will not break away from the restriction of the grasping claws 8 after being deflected, thus achieving the effect of clamping the profile.

[0047] On both sides of the stress steel framework 5, fitting arms 9 are rotationally connected. The upper end of the fitting arm 9 is sleeved with a traction frame 10. The middle section of the fitting arm 9 is rotationally connected with the support frame 53. An activity slot 91 is arranged at the upper end of the fitting arm 9. The traction frame 10 penetrates through the inside of the activity slot 91. A shovel plate 92 is arranged at the lower end of the traction frame 10. After being pulled, the fitting arm 9 can use the rotation effect to move closer to the center downward. By setting the shovel plate 92, the shovel plate 92 can be inserted into the profile gap, so that the profile can avoid hindering the grasping claws 8 from closing during handling and cannot achieve the effect of wrapping the profile.

[0048] The traction frame 10 is slidably connected to the sliding rod of the crossbeam frame 4. A leading plate 11 is fixedly connected to the outer surface of the traction frame 10. The center of the adjusting section rope 2 is a bendable steel wire rope. A circular ring sleeve 21 is arranged outside the steel wire rope of the adjusting section rope 2. A limiting and blocking block 22 is rotatably connected to the outside of the circular ring sleeve 21. The adjusting section rope 2 can pass through the limiting and blocking block 22 on its surface, so that the limiting and blocking block 22 can contact the leading plate 11 at an appropriate position, and the leading plate 11 can move first after the device is lifted.

[0049] The center of the traction frame 10 is a round rod. The traction frame 10 is slidably connected to the round hole 42. Traction rings 101 are arranged on both sides of the upper end of the traction frame 10. The traction frame 10 has a buffering function, and the lifting and lowering of the traction frame 10 can achieve the effect of pushing and pulling the fitting arm 9. The leading plate 11 is sleeved outside the adjusting section rope 2.

[0050] During use, first pass the lifting hook through the lifting buckle 1, roughly place the device above the middle section of the profile, lower the lifting buckle 1, so that the leading plate 11 moves downward along the round hole 42 of the crossbeam frame 4, so that the leading plate 11 drives the traction frame 10 to descend, so that the traction ring 101 drives the fitting arm 9 to rotate, so that the shovel plates 92 at the lower ends of the two fitting arms 9 open, so that the fitting arms 9 are opened and placed outside the profile. Adjust the matching position between the adjusting section rope 2 and the leading plate 11 by rotating the limiting and blocking block 22 outside the circular ring sleeve 21. Lift the traction lifting buckle 1, so that the adjusting section rope 2 is pulled and the limiting and blocking block 22 first drives the leading plate 11 to rise. The leading plate 11 rises and drives the traction frame 10, so that the traction ring 101 pulls the fitting arm 9 upward. After the fitting arm 9 is pulled, it rotates, so that the two shovel plates 92 move closer to the center, so that the shovel plates 92 are inserted under the profile, so that the profile is grabbed. By starting the grabbing motor 6 to drive the transmission component 7, the outer component 71 and the central component 72 rotate in different directions driven by the output bevel gear 73, so that the outer component 71 and the central component 72 respectively push the two groups of grabbing claws 8 to rotate, so that the grabbing claws 8 close and clamp the profile, so that the profile is fixed. By clamping the profile at both ends with the grabbing claws 8, the profile is fixed to prevent the profile from scattering after being lifted;

[0051] When the profile tilts after being lifted, start the adjusting motor 33 to drive the first driving gear 34 and the intermediate gear 36 to rotate, so that the first traveling gear 35 and the second traveling gear 37 rotate, so that the center of gravity adjusting sleeve 3 slides on the surface of the crossbeam frame 4, so that the stress positions of the crossbeam frame 4 and the traction lifting buckle 1 are changed, so that the center of gravity position of the lifted profile can be adjusted within the range of the crossbeam frame 4, and the profile can be prevented from tilting after being lifted.

[0052] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0053] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0054] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel structure profile lifting device, comprising a lifting buckle (1), characterized in that: The lower end of the lifting buckle (1) is fixedly connected to an adjusting rope (2), the lower end of the adjusting rope (2) is fixedly connected to a gravity center adjustment sleeve (3), the inner side of the lower end of the gravity center adjustment sleeve (3) is slidably connected to a crossbeam frame (4), the lower end of the crossbeam frame (4) is fixedly connected to a load-bearing steel frame (5), the inner side of the load-bearing steel frame (5) is fixedly connected to a grabbing motor (6), the output end of the grabbing motor (6) is fixedly connected to a transmission assembly (7), the outer surface of the transmission assembly (7) is connected to a grabbing claw (8), the grabbing claw (8) is slidably connected to the inner side of the load-bearing steel frame (5), both sides of the load-bearing steel frame (5) are rotatably connected to a chimeric arm (9), the upper end of the chimeric arm (9) is sleeved with a traction frame (10), the traction frame (10) is connected to a sliding rod of the crossbeam frame (4), the outer surface of the traction frame (10) is fixedly connected to a leading plate (11), and the leading plate (11) is sleeved on the outer side of the adjusting rope (2).

2. A steel structure profile lifting device according to claim 1, characterized in that: The center of the adjusting section rope (2) is a bendable steel wire rope, and a circular ring sleeve (21) is arranged outside the steel wire rope of the adjusting section rope (2), and the outer side of the circular ring sleeve (21) is rotatably connected to a limited position blocking block (22).

3. A steel structure profile lifting device according to claim 1, characterized in that: The center of gravity adjustment sleeve (3) comprises a cover plate (31), a sliding sleeve shell (32) is arranged on the lower surface of the cover plate (31), an adjustment motor (33) is fixedly connected to the upper surface of the cover plate (31), a first power gear (34) is fixedly connected to the output end of the adjustment motor (33), a first travel gear (35) is meshed on one side of the first power gear (34), a transfer gear (36) is meshed on the other side of the first power gear (34), a second travel gear (37) is meshed on the side of the transfer gear (36) away from the first power gear (34), an adjustment rope (2) is fixedly connected to the upper surface of the cover plate (31), and the first travel gear (35) and the second travel gear (37) are both rotatably connected to the lower surface of the cover plate (31).

4. A steel structure profile lifting device according to claim 3, characterized in that: The upper ends of the cross beam frame (4) are provided with teeth on both sides thereof, which mesh with the first travel gear (35) and the second travel gear (37) respectively; the cross beam frame (4) is provided with force sliding grooves (41) on both sides thereof; the sliding sleeve shell (32) is slidably connected with the force sliding grooves (41); and circular holes (42) are provided at both ends of the cross beam frame (4).

5. The steel structure profile lifting device according to claim 1, characterized in that: The load-bearing steel skeleton (5) comprises a connecting block (51), the upper end of the connecting block (51) is fixedly connected to the crossbeam frame (4), the lower end of the connecting block (51) is fixedly connected to a wrapping shell (52), the wrapping shell (52) wraps around the outside of the grabbing claw (8), both sides of the connecting block (51) are fixedly connected to support frames (53), the outside of the connecting block (51) is fixedly connected to a power shell (54), and the grabbing motor (6) is inside the power shell (54).

6. A steel structure profile lifting device according to claim 5, characterized in that: The transmission component (7) comprises a peripheral component (71), a central component (72) and an output bevel gear (73); one end of the peripheral component (71) is a bevel gear and the other end is a spur gear; the bevel gear of the peripheral component (71) and the spur gear are connected via a round tube; the bevel gear of the peripheral component (71) meshes with the output bevel gear (73); the spur gear of the peripheral component (71) meshes with the grabbing claw (8); the center of the central component (72) is a round rod; one end of the round rod of the central component (72) is a bevel gear and the other end is a spur gear; the bevel gear of the central component (72) meshes with the output bevel gear (73); the spur gear of the central component (72) meshes with the grabbing claw (8); the output bevel gear (73) is fixed to the output end of the grabbing motor (6); the peripheral component (71) is sleeved on the outside of the central component (72); and the peripheral component (71) is rotatably connected to the wrapping shell (52).

7. A steel structure profile lifting device according to claim 6, characterized in that: The grabbing claw (8) has an arc shape, and teeth are arranged on the outside of the grabbing claw (8). There are two groups of grabbing claws (8), and the two groups of grabbing claws (8) are respectively engaged with the peripheral component (71) and the central component (72). The lower end of the grabbing claw (8) is provided with a sharp corner to facilitate insertion into the gap of the steel structure profile.

8. The steel structure profile lifting device according to claim 5, characterized in that: The middle section of the chimeric arm (9) is rotatably connected to the support frame (53); a movable groove (91) is arranged at the upper end of the chimeric arm (9); the traction frame (10) passes through the inner side of the movable groove (91); and a shovel plate (92) is arranged at the lower end of the traction frame (10).

9. A steel structure profile lifting device according to claim 4, characterized in that: The center of the traction frame (10) is a round rod, the traction frame (10) is slidably connected to the round hole (42), and traction rings (101) are provided on both sides of the upper end of the traction frame (10).

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