A lifting tool for steel lifting

Abstract

The present invention discloses a sling for lifting steel materials, which is characterized by comprising a lifting mount, a rotating structure, a steel wire rope assembly, and a steel fixing structure. The top of the lifting mount is connected to an external crane, and the bottom of the lifting mount is connected to the top of the rotating structure. One end of the steel wire rope assembly is fixed to the circumference of the bottom of the rotating structure, and the other end is fixed to the circumference of the steel fixing structure. The steel fixing structure is arranged horizontally, and the suspended component is arranged on the upper surface of the steel fixing structure in a detachable connection manner. The steel fixing structure changes the fixing method of the suspended component from a clamping method to a bearing method, thereby improving the stability of the suspended component. In addition, a rotating structure is provided between the lifting mount and the steel wire rope to achieve the purpose of adjusting the lifting direction of the suspended component.

Description

Technical Field

[0001] The present invention relates to the technical field of steel lifting devices, and in particular to a sling used for steel lifting. Background Art

[0002] A steel structure factory building mainly refers to a factory building whose main load-bearing components are made of steel, including steel columns, steel beams, steel structure foundations, steel roof trusses, and steel roofs. A large amount of steel is required during the construction process of a steel structure factory building, and a lifting mechanism is required when lifting the steel.

[0003] The existing structures cannot prevent the steel from sliding down, and they adopt a clamping method. However, the steel is generally long, and when clamping, it is generally clamped at the center end. As the steel is hoisted, the two ends of the steel are easily unbalanced, causing the steel to stand upright. The existing structures cannot ensure that after the steel is erected, it can still be clamped stably under the action of gravity, which can easily cause it to slip. In addition, although the steel in the existing structure is designed to be placed vertically and then limited, its height is fixed. If the length of the steel is long, when it is placed vertically in the device, it is easy to cause the top of the steel to tilt and then take the entire device with it, causing the steel to slip. The safety factor is low. At the same time, the direction of the lifted steel cannot be adjusted, and the staff needs to assist in steering in the air. However, because they are in the air, the assisted steering is easy to cause the staff's body to be suspended in the air, causing danger. Summary of the Invention

[0004] In view of the above-mentioned defects in the prior art, a lifting device for steel lifting is provided, which not only ensures the stability of steel lifting, but also can adjust the direction of steel.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A sling for lifting steel, characterized in that it includes a lifting mount, a rotating structure, a wire rope assembly and a steel fixing structure, the top of the lifting mount is connected to an external crane, the bottom of the lifting mount is connected to the top of the rotating structure, one end of the wire rope assembly is fixed to the circumferential side of the bottom of the rotating structure, and the other end is fixed to the circumferential side of the steel fixing structure; the steel fixing structure is arranged horizontally, and the hoisted parts are arranged on the upper surface of the steel fixing structure in a detachable connection manner.

[0007] According to the above technical solution, the steel fixing structure includes a main plate, a sub-plate, and a fixing assembly. The sub-plates are fixed on the left and right sides of the main plate, and the upper surfaces of the sub-plates and the main plate are on the same plane. The spacing between the webs on both sides is adjusted according to the size of the suspended parts; limit plates are fixed on the left side of the left sub-plate, the right side of the right sub-plate, and the front and rear sides of the main plate, and the other end of the wire rope assembly is fixed on the limit plate; the fixing assembly is arranged on the limit plate on the main plate, and the suspended parts are placed on the upper surfaces of the main plate and the sub-plate, and are fixed by the fixing assembly.

[0008] According to the above technical solution, support guide blocks, support guide grooves, first limiting holes, first mounting holes and first limiting bolts are provided on the main board and the web. Several support guide blocks are provided on the adjacent surfaces of the sub-board and the main board, and several support guide grooves matching the support guide blocks are provided on the adjacent surfaces of the main board and the sub-board; several first mounting holes passing through all the support guide grooves are on the main board, and several first limiting holes are provided at intervals on the support guide blocks, and the sizes of the first limiting holes and the first mounting holes match the sizes of the first limiting bolts; the spacing between the sub-board and the main board is adjusted by placing the first limiting bolts in different first limiting holes.

[0009] According to the above technical solution, the fixing component includes a heightening plate and a U-shaped bracket. A first groove matching the heightening plate is provided on the limiting plate, and the heightening plate is fixed in the first groove of the limiting plate by bolt connection; a plurality of second grooves matching the cross-sectional dimensions of the U-shaped bracket are provided at intervals on the top surface of the heightening plate of the main board, and the two ends of the U-shaped bracket are respectively placed in the second grooves of the heightening plate on the front and rear sides of the main board, and the U-shaped bracket is fixed in the second groove by bolt connection; several layers of second limiting holes and third limiting holes are vertically spaced on the heightening plate and the U-shaped bracket, and the height adjustment of the heightening plate and the U-shaped bracket is achieved by selecting limiting holes of different heights for inserting bolts.

[0010] According to the above technical solution, sliders are provided at both ends of the height-increasing plate, and sliding grooves matching the sliders are provided at both ends of the first groove of the limiting plate.

[0011] According to the above technical scheme, the rotating structure includes a fixed seat, a supporting sliding seat, a connecting plate and a driving unit. The top of the fixed seat is fixedly connected to the lifting hanging seat. An annular sliding groove that matches the shape of the top of the supporting sliding seat is provided at the bottom of the fixed seat. The top of the supporting sliding seat is arranged on the bottom of the fixed seat in a rotatable connection through the annular sliding groove. The bottom of the supporting sliding seat is fixedly connected to the connecting plate, and the bottom of the connecting plate is connected to one end of the wire rope assembly; the power unit is arranged between the fixed seat and the connecting plate. Under the action of the power unit, the connecting plate rotates in the annular sliding groove of the fixed seat through the supporting sliding seat.

[0012] According to the above technical solution, the drive unit adopts a servo motor, a slot is set at the bottom of the fixed seat, the servo motor is fixed in the slot of the fixed seat through a limit seat, the output end of the servo motor is fixedly connected to the connecting plate, and under the action of the servo motor, the connecting plate rotates around the fixed seat.

[0013] According to the above technical solution, the wire rope assembly is divided into a main plate wire rope assembly and a sub-plate wire rope assembly. The main plate wire rope assembly is symmetrically arranged on the front and rear sides of the connecting plate, and the sub-plate wire rope assembly is symmetrically arranged on the left and right sides of the connecting plate; the wire rope assembly includes a wire rope and connecting rings provided at both ends of the wire rope, and the connecting plate is fixed to the limit plates of the main plate and the sub-plate, as well as the connecting plate in a rotating connection manner.

[0014] According to the above technical solution, rubber pads are provided at the bottom of the main board and the sub-board.

[0015] The present invention has the following beneficial effects:

[0016] 1. The auxiliary plate is connected to the main plate through the support guide block and the support guide groove. According to the length of the suspended part, the position of the first limiting hole in which the first limiting bolt is inserted is adjusted, thereby adjusting the distance between the auxiliary plates on both sides, so as to be suitable for the lifting operation of suspended parts of different lengths; in addition, limiting plates, raising plates and U-shaped brackets are arranged around the main plate and the auxiliary plate. By adjusting the height of the raising plates and the U-shaped brackets, the lifting operation of suspended parts of different thicknesses can be realized. The above structure is set to place the suspended part on the steel fixed structure, which avoids the steel from slipping when the device is lifted, thereby ensuring the stability of the steel lifting.

[0017] 2. A rotating structure is installed between the lifting bracket and the wire rope assembly. The fixed base on the rotating structure and the connecting plate bracket at the bottom of the rotating structure are rotatably connected. A power unit located between the two controls the connecting plate to slowly rotate around the fixed base. Since the steel fixed structure, which houses the suspended component, is fixed to the bottom end of the connecting plate via the wire rope assembly, the connecting plate rotates on the fixed base, driving the steel fixed structure to rotate simultaneously, thereby adjusting the direction of the suspended component. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment provided by the present invention;

[0019] Figure 2 is a diagram showing the connection relationship between the support guide block and the support guide groove according to an embodiment of the present invention;

[0020] Figure 3 is a top view of a steel fixing structure according to an embodiment of the present invention;

[0021] Figure 4 The present invention provides an embodiment;

[0022] Figure 5 The present invention provides an embodiment;

[0023] In the figure, 1. lifting seat; 2-1. fixed seat; 2-2. supporting sliding seat; 2-3. connecting plate; 2-4. annular sliding groove; 2-5. servo motor; 2-6. slot; 2-7. limit seat; 3-1. main board wire rope assembly; 3-2. auxiliary board wire rope assembly; 3-3. wire rope; 3-4. connecting ring; 4-1. main board; 4-2. auxiliary board; 4-3. limit plate; 4-4. supporting guide block; 4-5. supporting guide groove; 4-6. first limit bolt; 4-7. raising plate; 4-8. U-shaped bracket; 4-9. second limit bolt; 4-10. third limit bolt; 4-11. rubber pad; 4-12. first groove; 4-13. second groove; 4-14. slider; 4-15. slide groove. DETAILED DESCRIPTION

[0024] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0025] Reference Figures 1 to 5 As shown, the present invention provides a sling for steel lifting, comprising a lifting mount 1, a rotating structure, a wire rope assembly, and a steel fixing structure. The top of the lifting mount is connected to an external crane, and the bottom of the lifting mount is connected to the top of the rotating structure. One end of the wire rope assembly is fixed to the circumference of the bottom of the rotating structure, and the other end is fixed to the circumference of the steel fixing structure. The steel fixing structure is arranged horizontally, and the suspended component is arranged on the upper surface of the steel fixing structure in a detachable connection manner. This embodiment changes the fixing method of the suspended component from a clamping method to a bearing method through the steel fixing structure, thereby improving the stability of the suspended component. In addition, a rotating structure is provided between the lifting mount and the wire rope to achieve the purpose of adjusting the lifting direction of the suspended component.

[0026] Furthermore, the steel fixing structure includes a main plate 4-1, a sub-plate 4-2, and a fixing assembly. The sub-plates are fixed on the left and right sides of the main plate, and the upper surfaces of the sub-plates and the main plate are on the same plane. The spacing between the webs on both sides is adjusted according to the size of the suspended parts. A limit plate 4-3 is fixedly arranged on the left side of the left sub-plate, the right side of the right sub-plate, and the front and rear sides of the main plate, and the other end of the wire rope assembly is fixed on the limit plate. The fixing assembly is arranged on the limit plate on the main plate, and the suspended parts are placed on the upper surfaces of the main plate and the sub-plate, and are fixed by the fixing assembly.

[0027] Furthermore, support guide blocks 4-4, support guide grooves 4-5, first limiting holes, first mounting holes, and first limiting bolts 4-6 are provided on the main plate and the web. Several support guide blocks are provided on the adjacent surfaces of the sub-plate and the main plate, and several support guide grooves matching the support guide blocks are provided on the adjacent surfaces of the main plate and the sub-plate. Several first mounting holes extending through all the support guide grooves are provided on the main plate, and several first limiting holes are provided at intervals on the support guide blocks. The sizes of the first limiting holes and the first mounting holes match the sizes of the first limiting bolts. The spacing between the sub-plate and the main plate is adjusted by placing the first limiting bolts in different first limiting holes. In the embodiment shown in the figure, two sets of support guide blocks and support guide grooves are provided between the sub-plate and the main plate on either side. The first limiting bolts are inserted into different first limiting holes to control the length of the support guide blocks inserted into the support guide grooves, thereby adjusting the spacing between the left and right sub-plates.

[0028] Furthermore, the fixing component includes a heightening plate 4-7 and a U-shaped bracket 4-8, a first groove 4-12 matching the heightening plate is provided on the limiting plate, and the heightening plate is fixed in the first groove of the limiting plate by bolt connection; a plurality of second grooves 4-13 matching the cross-sectional size of the U-shaped bracket are provided at intervals on the top surface of the heightening plate of the main board, and the two ends of the U-shaped bracket are respectively placed in the second grooves of the heightening plate on the front and rear sides of the main board, and the U-shaped bracket is fixed in the second groove by bolt connection; several layers of second limiting holes and third limiting holes are vertically spaced on the heightening plate and the U-shaped bracket, and the height adjustment of the heightening plate and the U-shaped bracket is achieved by selecting limiting holes of different heights for inserting bolts.

[0029] In the illustrated embodiment, the first groove of the retaining plate is provided with a plurality of first threaded holes spaced horizontally, and the height-enhancing plate is provided with a plurality of second threaded holes spaced vertically. The horizontal positions of the second threaded holes match those of the first threaded holes. Second retaining bolts 4-9 are inserted through different second threaded holes and the first threaded holes in the height-enhancing plate to adjust the height of the height-enhancing plate. Second threaded holes are provided in the second groove of the height-enhancing plate, and the U-shaped bracket is provided with a plurality of third threaded holes spaced vertically. The horizontal positions of the third threaded holes match those of the second threaded holes. Third retaining bolts 4-9 are inserted through different third threaded holes and the second threaded holes in the U-shaped bracket to adjust the height of the U-shaped bracket. In the illustrated embodiment, there are two U-shaped brackets.

[0030] Furthermore, sliders 4-14 are provided at both ends of the height-increasing plate, and sliding grooves 4-15 matching the sliders are provided at both ends of the first groove of the limiting plate, and the height-increasing plate slides in the first groove through the sliders and the sliding grooves.

[0031] Furthermore, the rotating structure includes a fixed seat 2-1, a supporting sliding seat 2-2, a connecting plate 2-3 and a driving unit. The top of the fixed seat is fixedly connected to the lifting hanging seat, and an annular sliding groove 2-4 that matches the shape of the top of the supporting sliding seat is provided at the bottom of the fixed seat. The top of the supporting sliding seat is arranged on the bottom of the fixed seat in a rotatable connection through the annular sliding groove. The bottom of the supporting sliding seat is fixedly connected to the connecting plate, and the bottom of the connecting plate is connected to one end of the wire rope assembly; the power unit is arranged between the fixed seat and the connecting plate. Under the action of the power unit, the connecting plate rotates in the annular sliding groove of the fixed seat through the supporting sliding seat.

[0032] Furthermore, the driving unit adopts a servo motor 2-5, and a slot 2-6 is set at the bottom of the fixed seat. The servo motor is fixed in the slot of the fixed seat through a limit seat 2-7. The output end of the servo motor is fixedly connected to the connecting plate. Under the action of the servo motor, the connecting plate rotates around the fixed seat.

[0033] Furthermore, the wire rope assembly is divided into a main plate wire rope assembly 3-1 and a sub-plate wire rope assembly 3-2. The main plate wire rope assembly is symmetrically arranged on the front and rear sides of the connecting plate, while the sub-plate wire rope assembly is symmetrically arranged on the left and right sides of the connecting plate. The wire rope assembly maintains the top surfaces of the main plate and sub-plate in a horizontal position. The wire rope assembly includes a wire rope 3-3 and connecting rings 3-4 at each end of the wire rope. The connecting plate is pivotally fixed to the stop plates of the main plate and sub-plate, as well as the connecting plate.

[0034] Furthermore, rubber pads 4-11 are provided at the bottom of the main board and the auxiliary board, and the rubber pads are used in conjunction with the supporting platform.

[0035] Working principle of the present invention:

[0036] The auxiliary plate is connected to the main plate through the support guide block and the support guide groove. According to the length of the suspended part, the position of the first limit hole in which the first limit bolt is inserted is adjusted, thereby adjusting the distance between the auxiliary plates on both sides, so that it is suitable for lifting operations of suspended parts of different lengths; in addition, limit plates, heightening plates and U-shaped brackets are arranged around the main plate and the auxiliary plate. By adjusting the height of the heightening plates and the U-shaped brackets, the lifting operations of suspended parts of different thicknesses can be realized. The above structure is set up to place the suspended parts on the steel fixed structure, which can avoid the steel slipping when the device is lifted, thereby ensuring the stability of the steel lifting.

[0037] A rotating structure is installed between the lifting bracket and the wire rope assembly. A fixed base at the top of the rotating structure is rotatably connected to a connecting plate bracket at the bottom of the rotating structure. A power unit located between the two controls the connecting plate to slowly rotate around the fixed base. Because the steel fixing structure, which houses the suspended component, is secured to the bottom end of the connecting plate via the wire rope assembly, the connecting plate rotates on the fixed base, driving the steel fixing structure to rotate as well, thereby adjusting the direction of the suspended component.

[0038] The above are only preferred embodiments of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope of protection of the present invention.

Claims

1. A sling for lifting steel, characterized by: It includes a lifting mount, a rotating structure, a wire rope assembly, and a steel fixing structure. The top of the lifting mount is connected to an external crane, and the bottom of the lifting mount is connected to the top of the rotating structure. One end of the wire rope assembly is fixed to the peripheral side of the bottom of the rotating structure, and the other end is fixed to the peripheral side of the steel fixing structure. The steel fixing structure is arranged horizontally, and the hoisted parts are arranged on the upper surface of the steel fixing structure in a detachable connection manner. The steel fixing structure includes a main plate, a sub-plate, and a fixing assembly. The sub-plates are fixed on the left and right sides of the main plate, and the upper surfaces of the sub-plates and the main plate are in the same plane. The spacing between the two sub-plates is adjusted according to the size of the suspended parts. Limiting plates are fixed on the left side of the left sub-plate, the right side of the right sub-plate, and the front and back sides of the main plate. The other end of the wire rope assembly is fixed on the limiting plates. The fixing assembly is arranged on the limiting plates on the main plate. The suspended parts are placed on the upper surfaces of the main plate and sub-plates and fixed by the fixing assembly. A support guide block, a support guide groove, a first limiting hole, a first mounting hole, and a first limiting bolt are provided on the main board and the sub-board. Several support guide blocks are provided on adjacent surfaces of the sub-board and the main board, and several support guide grooves matching the support guide blocks are provided on adjacent surfaces of the main board and the sub-board. Several first mounting holes penetrating all the support guide grooves are provided on the main board, and several first limiting holes are provided at intervals on the support guide block. The sizes of the first limiting holes and the first mounting holes match the sizes of the first limiting bolts. The spacing between the sub-board and the main board can be adjusted by placing the first limiting bolts in different first limiting holes. The fixing component includes a heightening plate and a U-shaped bracket. A first groove matching the heightening plate is provided on the limiting plate, and the heightening plate is fixed in the first groove of the limiting plate by bolt connection; a plurality of second grooves matching the cross-sectional size of the U-shaped bracket are provided at intervals on the top surface of the heightening plate of the main board, and the two ends of the U-shaped bracket are respectively placed in the second grooves of the heightening plate on the front and rear sides of the main board, and the U-shaped bracket is fixed in the second groove by bolt connection; a plurality of layers of second limiting holes and third limiting holes are vertically spaced on the heightening plate and the U-shaped bracket, and the height adjustment of the heightening plate and the U-shaped bracket is achieved by selecting limiting holes of different heights for inserting bolts.

2. The lifting device for lifting steel materials according to claim 1, characterized in that: Slide blocks are provided at both ends of the height-increasing plate, and sliding grooves matching the slide blocks are provided at both ends of the first groove of the limiting plate.

3. The lifting device for lifting steel materials according to claim 1, characterized in that: The rotating structure includes a fixed seat, a supporting sliding seat, a connecting plate and a driving unit. The top of the fixed seat is fixedly connected to the lifting hanging seat. An annular sliding groove that matches the shape of the top of the supporting sliding seat is provided at the bottom of the fixed seat. The top of the supporting sliding seat is arranged on the bottom of the fixed seat in a rotatable connection through the annular sliding groove. The bottom of the supporting sliding seat is fixedly connected to the connecting plate, and the bottom of the connecting plate is connected to one end of the wire rope assembly; the power unit is arranged between the fixed seat and the connecting plate. Under the action of the power unit, the connecting plate rotates in the annular sliding groove of the fixed seat through the supporting sliding seat.

4. The lifting device for lifting steel materials according to claim 3, characterized in that: The drive unit adopts a servo motor. A slot is set at the bottom of the fixed seat. The servo motor is fixed in the slot of the fixed seat through a limit seat. The output end of the servo motor is fixedly connected to the connecting plate. Under the action of the servo motor, the connecting plate rotates around the fixed seat.

5. The lifting device for lifting steel materials according to claim 4, characterized in that: The wire rope assembly is divided into a main plate wire rope assembly and a sub-plate wire rope assembly. The main plate wire rope assembly is symmetrically arranged on the front and rear sides of the connecting plate, and the sub-plate wire rope assembly is symmetrically arranged on the left and right sides of the connecting plate; the wire rope assembly includes a wire rope and connecting rings provided at both ends of the wire rope, and the connecting plate is fixed to the limit plates of the main plate and sub-plate, as well as the connecting plate in a rotating connection.

6. The lifting device for lifting steel materials according to claim 1, characterized in that: There are rubber pads on the bottom of both the main board and the sub-board.

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