A large cantilever steel structure component construction auxiliary device

Abstract

The utility model discloses a big overhanging steel structure component construction auxiliary device, including respectively setting in the mobile board of left and right sides of I -beam, mobile board sliding connection is in the base, and the base sets up below I -beam, and the inboard rotation of mobile board is connected with the locating wheel, and the locating wheel is with the upper end surface of the bottom plate of I -beam and is in abutment, be provided with a plurality of rolling wheel groups on the base, and the rolling wheel group is with the lower end surface of the bottom plate of I -beam and is in abutment, and the first drive mechanism for driving locating wheel moves up and down is structured to mobile board, and the left side of base constructs for driving two mobile boards and is away from each other or the second drive mechanism for driving two mobile boards and is close, and the bottom end center of base is connected with the lifting mechanism, and the lifting end of lifting mechanism is connected with the fixed pulley, and the utility model discloses through adjusting the mobile board spacing adaptation different width I -beam, through adjusting the locating wheel position adaptation different thickness I -beam bottom plate. Adapt to steel structure construction equipment technical field.

Description

Technical Field

[0001] This utility model belongs to the technical field of steel structure construction equipment, specifically, it relates to an auxiliary device for the construction of large cantilever steel structure components. Background Technology

[0002] Steel structures, with their advantages of light weight, high strength, and short construction period, have been widely used in engineering fields such as large stadiums, super high-rise office buildings, long-span bridges, and industrial plants. Among them, large cantilever steel structures require the installation of components without lower support, which puts higher demands on the stability, adaptability, and ease of adjustment of construction auxiliary devices. In the construction process of large cantilever steel structures, the hoisting operation of components is the core link. Usually, auxiliary devices such as fixed pulleys are needed to change the direction of the slings, and external traction equipment is used to complete the precise positioning and installation of components.

[0003] Existing auxiliary devices for the construction of large cantilever steel structures use fixed-width frame structures, which cannot accommodate I-beams of different widths and cannot flexibly adjust the width of the positioning wheels to fit the sidewalls of I-beams of varying widths. The positioning wheels in existing devices are typically designed with a fixed height, making it impossible to adjust them vertically according to the thickness or surface flatness of the I-beam base plate. This results in the positioning wheels not making tight contact with the upper surface of the I-beam base plate, causing the device to easily shift left and right when sliding under the weight of the component, and even jamming or tilting, posing a safety hazard of component collision or falling. Furthermore, the fixed pulleys in existing auxiliary devices are mostly directly fixed to the bottom of the supporting frame, and their height cannot be adjusted according to construction needs. In actual hoisting, different component sizes and installation positions require different vertical distances for the slings, and fixed-height fixed pulleys can easily cause interference between the slings and the components or I-beams. Therefore, we propose a construction auxiliary device for large cantilever steel structures. Utility Model Content

[0004] This utility model provides a construction auxiliary device for large cantilever steel structure components to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A construction auxiliary device for a large cantilever steel structure includes movable plates respectively disposed on the left and right sides of an I-beam. The movable plates are slidably connected to a base, which is located below the I-beam. Positioning wheels are rotatably connected to the inner side of each movable plate, and the positioning wheels abut against the upper end face of the base plate of the I-beam. Several sets of rolling wheels are disposed on the base, and the sets of rolling wheels abut against the lower end face of the base plate of the I-beam. A first driving mechanism is constructed on the movable plates for driving the positioning wheels to move up and down. A second driving mechanism is constructed on the left side of the base for driving the two movable plates to move away from or closer to each other. A lifting mechanism is connected to the center of the bottom end of the base, and the lifting end of the lifting mechanism is connected to a fixed pulley.

[0006] Furthermore, a sliding groove is provided through the movable plate, and a slider is slidably connected vertically inside the sliding groove. A rotating shaft is fixedly connected to the inner side of the slider, and the positioning wheel is coaxially rotatably connected to the rotating shaft. The first driving mechanism includes an adjusting screw disposed in the sliding groove. A threaded hole is provided vertically through the top sidewall of the sliding groove, and the adjusting screw is rotatably connected to the threaded hole. The bottom end of the adjusting screw is rotatably connected to the top end of the slider.

[0007] Furthermore, T-shaped grooves are respectively provided on the left and right sides of the upper surface of the base, and T-shaped blocks are slidably connected in the T-shaped grooves. The bottom end of the movable plate is fixedly connected to the T-shaped blocks.

[0008] Furthermore, the second driving mechanism includes a forward and reverse threaded rod that passes through the interior of two T-slots. The middle part of the forward and reverse threaded rod is rotatably connected to the base, and the two ends of the forward and reverse threaded rod are respectively rotatably connected to the base. The forward and reverse threaded sections of the forward and reverse threaded rod are respectively disposed in the two T-slots, and the forward and reverse threaded sections are respectively threadedly connected to the T-blocks on the left and right sides.

[0009] Furthermore, the number of the rolling wheel sets is three, which are distributed at intervals along the front-back direction. Each rolling wheel set includes a limiting horizontal tube fixedly connected to the base. A partition plate is fixedly connected to the middle of the inner cavity of the limiting horizontal tube. Connecting rods are slidably connected to the left and right inner cavities of the limiting horizontal tube. The outer ends of the connecting rods are fixedly connected to the moving plate. A first pulley is rotatably connected to the outer side of the end of the connecting rod near the moving plate. A second pulley is rotatably connected to the outer side of the middle part of the limiting horizontal tube. The outer diameters of the first pulley and the second pulley are equal, and both abut against the bottom surface of the I-beam.

[0010] Furthermore, the lifting mechanism includes a lifting sleeve fixedly connected to the middle of the bottom surface of the base, a lifting rod slidably connected inside the lifting sleeve, the bottom end of the lifting rod being rotatably connected to a fixed pulley, and a limiting unit for restricting the sliding of the lifting rod being constructed between the lifting sleeve and the lifting rod.

[0011] Furthermore, the limiting unit includes several adjusting holes that pass through the side wall of the lifting sleeve. The adjusting holes are distributed vertically at intervals. The upper end of the lifting rod has a through hole. The adjusting holes and the through holes are the same size. When the lifting rod moves up and down, the through hole aligns with one of the adjusting holes. A locking bolt passes through the adjusting hole and the through hole and is locked by a locking nut to limit the lifting rod.

[0012] The present invention, by adopting the aforementioned structure, achieves the following technological advancements compared to existing technologies: First, the second drive mechanism can drive the moving plates on both sides to move away from or closer to each other along the base, thereby adjusting the spacing between the moving plates to accommodate I-beams of different widths; second, the first drive mechanism can drive the positioning wheels to move up and down, ensuring that the positioning wheels are always in close contact with the upper surface of the I-beam base plates of different thicknesses; simultaneously, the rolling wheel assembly on the base abuts against the lower surface of the I-beam base plate, allowing the auxiliary device to slide smoothly along the I-beam; finally, the lifting mechanism at the bottom of the base can drive the fixed pulley to rise and fall, adjusting the hoisting height of the fixed pulley to meet different construction needs. The invention utilizes the coordinated action of various components to achieve compatibility between the device and the I-beam, as well as the adjustment of the height of the fixed pulley, providing guidance and support for the hoisting of large cantilever steel structure components. This invention adapts to I-beams of different widths by adjusting the spacing of the moving plates, eliminating the need to replace the entire device, thus reducing equipment costs and construction downtime. Furthermore, it adapts to I-beam base plates of different thicknesses by adjusting the position of the positioning wheels, avoiding slippage and offset problems caused by insufficient contact between the positioning wheels and the I-beam base plate. The addition of a lifting mechanism to adjust the height of the fixed pulley solves the problem of interference between the fixed-height pulley and components / I-beams, adapting to the hoisting and installation needs of components of different sizes and improving construction flexibility. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view showing the connection between the I-beam, the movable plate, and the base of this utility model. Figure 3 This is a cross-sectional view of the connection between the lifting sleeve, the lifting rod, and the fixed pulley of this utility model.

[0015] Components to be labeled: 1. I-beam; 2. Moving plate; 3. Base; 4. Positioning wheel; 5. Fixed pulley; 6. Slide groove; 7. Sliding block; 8. Rotating shaft; 9. Adjusting screw; 10. T-slot; 11. T-block; 12. Positive and negative threaded screw; 13. Limiting horizontal tube; 14. Divider plate; 15. Connecting rod; 16. First pulley; 17. Second pulley; 18. Lifting sleeve; 19. Lifting rod; 20. Adjusting hole; 21. Locking bolt; 22. Locking nut. Detailed Implementation

[0016] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0017] This utility model discloses a construction auxiliary device for large cantilever steel structure components, such as... Figure 1-3 As shown, the structure includes movable plates 2 respectively disposed on the left and right sides of the I-beam 1. The movable plates 2 are slidably connected to the base 3, which is located below the I-beam 1. The inner side of the movable plates 2 is rotatably connected to the positioning wheels 4, which abut against the upper end surface of the base plate of the I-beam 1. The base 3 is provided with several sets of rolling wheels, which abut against the lower end surface of the base plate of the I-beam 1. The movable plates 2 are equipped with a first drive mechanism for driving the positioning wheels 4 to move up and down. The left side of the base 3 is equipped with a second drive mechanism for driving the two movable plates 2 to move away from or closer to each other. The bottom center of the base 3 is connected to a lifting mechanism, and the lifting end of the lifting mechanism is connected to a fixed pulley 5. The working principle and advantages of this utility model are as follows: First, the second drive mechanism can drive the moving plates 2 on the left and right sides to move away from or closer to each other along the base 3, thereby adjusting the spacing of the moving plates 2 to adapt to I-beams 1 of different widths; second, the first drive mechanism can drive the positioning wheel 4 to move up and down, so that the positioning wheel 4 is always in close contact with the upper surface of the base plate of the I-beam 1 of different thicknesses; at the same time, the rolling wheel group on the base 3 abuts against the lower surface of the base plate of the I-beam 1, and the auxiliary device slides smoothly along the I-beam 1; finally, the lifting mechanism at the bottom of the base 3 can drive the fixed pulley 5 to rise and fall, adjusting the hoisting height of the fixed pulley 5 to meet different construction needs, and all components work together. This invention enables the device to adapt to the I-beam 1 and adjust the height of the fixed pulley 5, providing guidance and support for the hoisting of large cantilever steel structure components. By adjusting the spacing of the moving plates 2, it adapts to I-beams 1 of different widths without replacing the entire device, reducing equipment costs and construction downtime. Furthermore, by adjusting the position of the positioning wheels 4, it adapts to the base plates of I-beams 1 of different thicknesses, avoiding slippage and offset problems caused by insufficient contact between the positioning wheels 4 and the base plates of the I-beams 1. The addition of a lifting mechanism to adjust the height of the fixed pulley 5 solves the problem of interference between the fixed-height fixed pulley 5 and components / I-beams 1, adapting to the hoisting and installation needs of components of different sizes and improving construction flexibility.

[0018] In a preferred embodiment of this utility model, a sliding groove 6 extends through the movable plate 2, and a slider 7 is slidably connected in the vertical direction within the sliding groove 6. A rotating shaft 8 is fixedly connected to the inner side of the slider 7, and the positioning wheel 4 is coaxially rotatably connected to the rotating shaft 8. The first driving mechanism includes an adjusting screw 9 disposed within the sliding groove 6. A threaded hole extends through the top sidewall of the sliding groove 6 in the vertical direction, and the adjusting screw 9 is rotatably connected within the threaded hole. The bottom end of the adjusting screw 9 is rotatably connected to the top end of the slider 7. When the adjusting screw 9 is rotated, the adjusting screw 9 moves vertically along the threaded hole, causing the slider 7 to rise and fall synchronously along the sliding groove 6, thereby driving the positioning wheel 4 to move up and down through the rotating shaft 8, achieving precise adjustment of the height of the positioning wheel 4.

[0019] In a preferred embodiment of this utility model, T-slots 10 are respectively provided on the left and right sides of the upper surface of the base 3. T-blocks 11 are slidably connected in the T-slots 10, and the bottom end of the moving plate 2 is fixedly connected to the T-blocks 11. The second driving mechanism includes a threaded rod 12 with positive and negative threads passing through the two T-slots 10. The middle part of the threaded rod 12 is rotatably connected to the base 3, and the two ends of the threaded rod 12 are rotatably connected to the base 3. The positive and negative threaded sections of the threaded rod 12 are respectively set in the two T-slots 10, and the positive and negative threaded sections are respectively threadedly connected to the T-blocks 11 on the left and right sides. When the threaded rod 12 is rotated, since the rotation direction of the positive and negative threaded sections is opposite, the T-blocks 11 on both sides will move synchronously in opposite directions along the T-slots 10, thereby driving the moving plate 2 to adjust the spacing synchronously, so as to achieve the adaptation to I-beams 1 of different widths.

[0020] Specifically, there are three roller sets, which are spaced apart along the front and back directions. Each roller set includes a limiting horizontal tube 13 fixedly connected to the base 3. A partition plate 14 is fixedly connected to the middle of the inner cavity of the limiting horizontal tube 13. Connecting rods 15 are slidably connected to the left and right inner cavities of the limiting horizontal tube 13, respectively. The outer end of the connecting rod 15 is fixedly connected to the moving plate 2. A first pulley 16 is rotatably connected to the outer side of the end of the connecting rod 15 near the moving plate 2. A second pulley 17 is rotatably connected to the outer side of the middle of the limiting horizontal tube 13. The outer diameters of the first pulley 16 and the second pulley 17 are equal, and both abut against the bottom surface of the I-beam 1. When the moving plate 2 is adjusted, the first pulley 16 adjusts its position synchronously with the moving plate 2. With the fixed support of the second pulley 17, the roller set is always fully in contact with the bottom plate of the I-beam 1, reducing local stress concentration, avoiding wear of the anti-corrosion layer of the bottom plate of the I-beam 1, and improving the load-bearing capacity of the device.

[0021] In a preferred embodiment of this utility model, the lifting mechanism includes a lifting sleeve 18 fixedly connected to the middle of the bottom surface of the base 3. A lifting rod 19 is slidably connected inside the lifting sleeve 18. The bottom end of the lifting rod 19 is rotatably connected to a fixed pulley 5. A limiting unit for restricting the sliding of the lifting rod 19 is constructed between the lifting sleeve 18 and the lifting rod 19. Specifically, the limiting unit includes several adjusting holes 20 that penetrate the side wall of the lifting sleeve 18. The adjusting holes 20 are distributed vertically at intervals. A through hole penetrates the upper end of the lifting rod 19. The size of the adjusting holes 20 is the same as that of the through hole. When the lifting rod 19 moves up and down, the through hole aligns with one of the adjustment holes 20. A locking bolt 21 passes through the adjustment hole 20 and the through hole and is locked by the locking nut 22, thereby limiting the lifting rod 19. When the height of the lifting rod 19 is adjusted, the through hole moves synchronously. After the through hole aligns with one of the adjustment holes 20, the locking bolt 21 passes through the aligned adjustment hole 20 and the through hole and is then tightened by the locking nut 22, which restricts the sliding of the lifting rod 19 along the lifting sleeve 18 and locks the height of the fixed pulley 5.

[0022] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A large cantilevered steel structural member construction aid, characterized by: The system includes movable plates (2) respectively located on the left and right sides of the I-beam (1). The movable plates (2) are slidably connected to the base (3), and the base (3) is located below the I-beam (1). The inner side of the movable plates (2) is rotatably connected to positioning wheels (4). The positioning wheels (4) abut against the upper end face of the bottom plate of the I-beam (1). The base (3) is provided with several sets of rolling wheels. The rolling wheels abut against the lower end face of the bottom plate of the I-beam (1). The movable plates (2) are equipped with a first driving mechanism for driving the positioning wheels (4) to move up and down. The left side of the base (3) is equipped with a second driving mechanism for driving the two movable plates (2) to move away from or closer to each other. The bottom center of the base (3) is connected to a lifting mechanism. The lifting end of the lifting mechanism is connected to a fixed pulley (5).

2. The construction auxiliary device for large cantilever steel structure components according to claim 1, characterized in that: The movable plate (2) has a sliding groove (6) running through it. A slider (7) is vertically connected inside the sliding groove (6). A rotating shaft (8) is fixedly connected to the inner side of the slider (7). The positioning wheel (4) is coaxially rotatably connected to the rotating shaft (8). The first driving mechanism includes an adjusting screw (9) set in the sliding groove (6). A threaded hole runs through the top sidewall of the sliding groove (6) vertically. The adjusting screw (9) is rotatably connected to the threaded hole, and the bottom end of the adjusting screw (9) is rotatably connected to the top end of the slider (7).

3. The construction aid for large cantilevered steel structural members of claim 2, wherein: T-shaped grooves (10) are respectively provided on the left and right sides of the upper surface of the base (3). A T-shaped block (11) is slidably connected in the T-shaped groove (10). The bottom end of the moving plate (2) is fixedly connected to the T-shaped block (11).

4. The construction aid for large cantilevered steel structural members of claim 3, wherein: The second driving mechanism includes a forward and reverse threaded screw (12) that passes through the two T-slots (10). The middle part of the forward and reverse threaded screw (12) is rotatably connected to the base (3), and the two ends of the forward and reverse threaded screw (12) are rotatably connected to the base (3) respectively. The forward and reverse threaded sections of the forward and reverse threaded screw (12) are respectively set in the two T-slots (10), and the forward and reverse threaded sections are respectively threaded to the T-blocks (11) on the left and right sides.

5. The construction aid for large cantilevered steel structural members of claim 4, wherein: The number of the rolling wheel sets is three, which are distributed at intervals along the front and back directions. The rolling wheel sets include a limiting horizontal tube (13) fixedly connected to the base (3). A partition plate (14) is fixedly connected to the middle of the inner cavity of the limiting horizontal tube (13). A connecting rod (15) is slidably connected to the left and right inner cavities of the limiting horizontal tube (13). The outer end of the connecting rod (15) is fixedly connected to the moving plate (2). A first pulley (16) is rotatably connected to the outer side of the end of the connecting rod (15) near the moving plate (2). A second pulley (17) is rotatably connected to the outer side of the middle part of the limiting horizontal tube (13). The outer diameters of the first pulley (16) and the second pulley (17) are equal, and both abut against the bottom surface of the I-beam (1).

6. The construction aid for large cantilevered steel structural members of claim 5, wherein: The lifting mechanism includes a lifting sleeve (18) fixedly connected to the middle of the bottom surface of the base (3). A lifting rod (19) is slidably connected inside the lifting sleeve (18). The bottom end of the lifting rod (19) is rotatably connected to a fixed pulley (5). A limiting unit for restricting the sliding of the lifting rod (19) is constructed between the lifting sleeve (18) and the lifting rod (19).

7. The construction aid for large cantilevered steel structural members of claim 6, wherein: The limiting unit includes several adjusting holes (20) that pass through the side wall of the lifting sleeve (18). The adjusting holes (20) are distributed vertically at intervals. The upper end of the lifting rod (19) has a through hole. The adjusting holes (20) and the through holes are the same size. When the lifting rod (19) moves up and down, the through hole aligns with one of the adjusting holes (20). A locking bolt (21) passes through the adjusting hole (20) and the through hole and is locked by a locking nut (22) to limit the lifting rod (19).

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