Steel structure installation lifting appliance

Abstract

The invention discloses a steel structure installation lifting appliance, and particularly relates to the technical field of lifting, the steel structure installation lifting appliance comprises a telescopic arm extending from a crane, the top of the telescopic arm is rotatably connected with a horizontal rod, the bottom of the horizontal rod is rotatably connected with a hydraulic rod, and the other end of the hydraulic rod is rotatably connected with the side part of the telescopic arm; the end, away from the telescopic arm, of the horizontal rod extends downwards to form a rotating component, and the bottom of the rotating component is connected with an adjusting component. The adjusting component comprises a mounting seat fixedly connected with the bottom of the rotating component, the mounting seat is provided with three horizontally-arranged winches, the included angle between the axes of the adjacent winches is 90 degrees, each winch is wound with a steel cable, the free end of each steel cable downwards penetrates through a sharp-corner through hole of the adjacent mounting seat, and the free end of each steel cable is fixedly connected with the rotating component. According to the installation lifting appliance, due to electric adjustment of the rotating component and the adjusting component, manpower consumption in the installation process of steel structure parts is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of hoisting, and particularly relates to a steel structure installation sling. Background Art

[0002] During the installation of steel structure buildings, the installation of steel structure components is carried out by slings, which usually includes steps such as preparation, hooking, trial hoisting, hoisting, positioning and fixing. First, confirm that the components are correct, use a suitable sling to hook, formally hoist after a stable trial hoisting, accurately position at the predetermined position, and immediately fix.

[0003] Existing steel structure building installations often use ordinary cranes. When hoisting steel structure components to the installation position, sometimes the installation postures of the steel structure components are incorrect, resulting in the inability to align the installation holes. Moreover, since some steel structure components are relatively heavy, it is inconvenient and inefficient for installation workers to adjust the installation postures of the steel structure components by manually pulling or prying. Therefore, a new type of steel structure installation sling is needed. Summary of the Invention

[0004] To solve the above problems, the invention discloses a steel structure installation sling.

[0005] To achieve the above object, the technical solution of the invention is as follows:

[0006] A steel structure installation sling includes a telescopic arm extending from a crane. A horizontal rod is rotatably connected to the top of the telescopic arm. A hydraulic rod is rotatably connected to the bottom of the horizontal rod, and the other end of the hydraulic rod is rotatably connected to the side of the telescopic arm. A rotating component extends downward from the end of the horizontal rod away from the telescopic arm, and an adjusting component is connected to the bottom of the rotating component; the adjusting component includes a mounting seat fixedly connected to the bottom of the rotating component. Three horizontally arranged winches are respectively installed on the mounting seat, and the axis angle between adjacent winches is degrees. Each winch winds a steel cable. The free end of each steel cable passes downward through the pointed hole of the adjacent mounting seat, and the free end of each hanging steel cable is fixedly connected with a clamping component.

[0007] As a preferred technical solution of the invention, the rotating component includes a fixed shaft seat fixedly connected to the horizontal rod and perpendicular to it. The bottom circular plate of the fixed shaft seat is rotatably connected with a rotating shaft seat. A toothed ring is coaxially fixedly connected to the top of the rotating shaft seat, and the toothed ring meshes with a gear. The gear is coaxially fixedly connected with a driving motor fixedly connected to the horizontal rod.

[0008] As a preferred technical solution of the invention, a plurality of annular grooves coaxial with the fixed shaft seat are formed in the bottom circular plate of the fixed shaft seat. A plurality of balls are placed in each annular groove with an upward opening, and all the balls jointly support the rotating shaft seat.

[0009] As a preferred technical solution of the present invention, the diameter of the gear ring is greater than that of the gear.

[0010] As a preferred technical solution of the present invention, each of the winches includes a stator fixedly connected to the mounting base, a rotor rotatably sleeved outside the stator coaxially, and a drum fixedly sleeved outside the rotor coaxially for winding the steel cable.

[0011] As a preferred technical solution of the present invention, each of the clamping assemblies includes a ball head fixedly connected to the end of the steel cable, the ball head is rotatably connected to a ball shell, the non-opening side of the ball shell is fixedly connected to a C-shaped clamping seat, a regulating screw is rotatably connected between the top plate and the bottom plate of the clamping seat, the regulating screw is threadedly connected to a movable clamping plate adapted to the bottom plate of the clamping seat, a plurality of optical axes parallel to the regulating screw are fixedly connected between the top plate and the bottom plate of the clamping seat, and all the optical axes are slidably connected to the movable clamping plate. Each of the optical axes is coaxially fixedly sleeved with a compression spring, and the compression spring is arranged between the top plate of the clamping seat and the movable clamping plate.

[0012] As a preferred technical solution of the present invention, a hexagonal nut is coaxially fixedly sleeved at one end of the regulating screw close to the top plate of the clamping seat.

[0013] As a preferred technical solution of the present invention, the movable clamping plate and the bottom plate of the clamping seat are both provided with anti-slip grooves adapted for clamping.

[0014] As a preferred technical solution of the present invention, each of the through holes at the sharp corners of the mounting base is provided with at least two layers of horizontally arranged rollers. Each layer of rollers is provided with two rollers symmetric about the through hole at the sharp corner, and the axes of the rollers between adjacent layers are perpendicular to each other. All the rollers are rotatably connected to the mounting base, and the steel cable passes through the cross holes formed by all the rollers.

[0015] As a preferred technical solution of the present invention, the two ends of the hydraulic rod are respectively rotatably connected to connecting seats, and the two connecting seats are respectively fixedly connected to the outer walls of the telescopic arm and the horizontal rod.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The lifting tool of the present application is provided with a rotating component and an adjusting component, which can rotate and adjust the posture of the hoisted steel structure parts, so that the steel structure parts are aligned with the mounting holes. Thanks to the electric adjustment of the rotating component and the adjusting component, the labor consumption in the installation process of the steel structure parts is reduced, the installation difficulty of the steel structure parts is lowered, and the installation efficiency is improved;

[0018] 2. The end of the cable in this application is rotationally connected by a ball head and a ball shell, which avoids the uniform stress at the connection caused by the direct connection between the cable and the clamping seat, reduces the probability of fracture at the connection. At the same time, when the cable passes through the sharp-corner through-hole, it always makes rolling contact with the roller, resulting in a small frictional resistance when the cable slides in the sharp-corner through-hole, reducing the wear of the cable during use. Thanks to the friction-reducing design of rolling and rotation, the service life of the cable is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 is a schematic diagram of the overall structure of another angle of an embodiment of the present invention;

[0021] Figure 3 is a partial cross-sectional view of the rotating component of an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of the structure of the adjusting component and the roller of an embodiment of the present invention;

[0023] Figure 5 is a schematic diagram of the structure of the cable and the clamping assembly of an embodiment of the present invention.

[0024] LIST OF REFERENCE NUMERALS IN THE DRAWINGS:

[0025] 1. Telescopic arm; 2. Horizontal rod;

[0026] 3. Rotating component; 31. Fixed shaft seat; 32. Rotating shaft seat; 33. Ball; 34. Gear ring; 35. Gear; 36. Driving motor;

[0027] 4. Adjusting component; 41. Mounting seat; 42. Winch; 421. Stator; 422. Rotor; 423. Drum; 43. Cable; 44. Clamping assembly; 441. Ball head; 442. Ball shell; 443. Clamping seat; 444. Movable splint; 445. Optical axis; 446. Adjusting screw; 447. Pressure spring;

[0028] 5. Roller; 6. Hydraulic rod; 7. Connecting seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The present invention will be further clarified below in conjunction with the drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

[0030] Please refer to Figures 1-5, a steel structure installation sling, including a telescopic arm 1 extended from a crane. A horizontal rod 2 is rotatably connected to the top of the telescopic arm 1. The telescopic arm 1 is only a component of the crane, and it is not drawn in the attached drawing of the crane instruction manual. The bottom of the horizontal rod 2 is rotatably connected to a hydraulic rod 6, and the other end of the hydraulic rod 6 is rotatably connected to the side of the telescopic arm 1. Both ends of the hydraulic rod 6 are respectively rotatably connected to a connecting seat 7, and the two connecting seats 7 are respectively fixedly connected to the outer walls of the telescopic arm 1 and the horizontal rod 2. A rotating component 3 extends downward from the end of the horizontal rod 2 away from the telescopic arm 1, and an adjusting component 4 is connected to the bottom of the rotating component 3. The telescoping of the hydraulic rod 6 can keep the horizontal rod 2 horizontal, facilitating the rotating component 3 and the adjusting component 4 to adjust the attitude of the lifted steel structure components.

[0031] The rotating component 3 includes a fixed shaft seat 31 fixedly connected and perpendicular to the horizontal rod 2. The bottom circular plate of the fixed shaft seat 31 is rotatably connected to a rotating shaft seat 32. A gear ring 34 is coaxially fixedly connected to the top of the rotating shaft seat 32, and the gear ring 34 meshes with a gear 35. The diameter of the gear ring 34 is larger than that of the gear 35, facilitating the gear 35 to drive the gear ring 34 with a smaller force. The gear 35 is coaxially fixedly connected to a driving motor 36 fixedly connected to the horizontal rod 2. The driving motor 36 is fixedly installed in the circular ring sleeve at the bottom of the horizontal rod 2.

[0032] The bottom circular plate of the fixed shaft seat 31 is provided with a plurality of annular grooves coaxial with the fixed shaft seat 31. A plurality of balls 33 are placed in each annular groove with an upward opening, and all the balls 33 together support the rotating shaft seat 32. All the balls 33 are in rolling contact with the rotating shaft seat 32, reducing the rotational resistance between the fixed shaft seat 31 and the rotating shaft seat 32.

[0033] The adjusting component 4 includes a mounting seat 41 fixedly connected to the bottom of the rotating component 3. The mounting seat 41 is respectively provided with three horizontally arranged winches 42, and the axis angle between adjacent winches 42 is 60 degrees. Each winch 42 is wound with a steel cable 43. The free end of each steel cable 43 passes downward through the pointed-angle through hole of the adjacent mounting seat 41, and the free end of each hanging steel cable 43 is fixedly connected to a clamping component 44.

[0034] Each winch 42 includes a stator 421 fixedly connected to the mounting seat 41. A rotor 422 is rotatably sleeved outside the stator 421 coaxially. A drum 423 for winding the steel cable 43 is fixedly sleeved outside the rotor 422 coaxially. The stator 421 and the rotor 422 form an electric motor.

[0035] Each clamping assembly 44 includes a ball head 441 fixedly connected to the end of the cable 43. The ball head 441 is rotatably connected to a ball shell 442. One side of the ball shell 442 without an opening is fixedly connected to a C-shaped clamping seat 443. A regulating screw 446 is rotatably connected to the top and bottom plates of the clamping seat 443. The regulating screw 446 is threadedly connected to a movable clamping plate 444 adapted to the bottom plate of the clamping seat 443. A plurality of optical axes 445 parallel to the regulating screw 446 are fixedly connected to the top and bottom plates of the clamping seat 443, and all the optical axes 445 are slidably connected to the movable clamping plate 444. A compression spring 447 is coaxially fixedly sleeved on each optical axis 445, and the compression spring 447 is arranged between the top plate of the clamping seat 443 and the movable clamping plate 444. The compression spring 447 always presses against the movable clamping plate 444, so that the movable clamping plate 444 maintains a fixed position without loosening. Anti-slip grooves adapted for clamping are provided on both the movable clamping plate 444 and the bottom plate of the clamping seat 443.

[0036] One end of the regulating screw 446 close to the top plate of the clamping seat 443 is coaxially fixedly sleeved with a hexagonal nut. Turning the hexagonal nut with a wrench can drive the regulating screw 446 to rotate, so that the regulating screw 446 drives the movable clamping plate 444 to move linearly along the optical axis 445.

[0037] Each sharp-corner through-hole of the mounting seat 41 is provided with at least two layers of horizontally arranged rollers 5. In the attached drawing embodiment, four layers of rollers 5 are provided. Each layer of rollers 5 is provided with two rollers 5 symmetric about the sharp-corner through-hole, and the axes of the rollers 5 between adjacent layers are perpendicular to each other. All the rollers 5 are rotatably connected to the mounting seat 41, and the cable 43 passes through the cross-hole formed by all the rollers 5. Since the cable 43 is always in rolling contact with the rollers 5 when passing through the sharp-corner through-hole, the frictional resistance is small when the cable 43 slides in the sharp-corner through-hole, reducing the wear of the cable 43 during use.

[0038] Working principle:

[0039] During use, the crane controls the lifting of the telescopic boom 1. The hydraulic rod 6 expands and contracts with the inclination angle of the telescopic boom 1 so that the horizontal rod 2 remains horizontal. Then, the clamping assembly 44 is used to clamp the edges of three relatively distant steel structure components, and the center of gravity of the steel structure components is preferably located directly below the adjusting component 4. When the steel structure components are hoisted to the installation position, the three winches 42 can synchronously drive the three cables 43 to lift and lower, thereby finely adjusting the height of the steel structure components. The three winches 42 can also independently drive the three cables 43 to lift and lower, causing the steel structure components to rotate slightly, thereby adjusting the installation attitude of the steel structure components. At the same time, the driving motor 36 drives the gear 35 and the gear ring 34 to rotate through the output shaft, so that the rotary shaft seat 32 together with the adjusting component 4 rotates, causing the steel structure components to rotate and adjust the installation attitude;

[0040] When the clamping component 44 clamps the steel structure parts, turning the hexagonal nut with a wrench can drive the adjusting screw 446 to rotate, so that the adjusting screw 446 drives the movable clamping plate 444 to move linearly along the optical axis 445. The movable clamping plate 444 and the bottom plate of the clamping seat 443 jointly clamp the steel structure parts. The pressure spring 447 always presses against the movable clamping plate 444 to keep the movable clamping plate 444 clamping the steel structure parts.

[0041] Since the end of the steel cable 43 is rotatably connected by the ball head 441 and the ball shell 442, it avoids the uneven force at the connection caused by the direct connection between the steel cable 43 and the clamping seat 443, resulting in the fracture of the connection. At the same time, when the steel cable 43 passes through the sharp-angle through hole, it always rolls in contact with the roller 5, so that the frictional resistance is small when the steel cable 43 slides in the sharp-angle through hole, reducing the wear of the steel cable 43.

[0042] It should be noted that the above content only illustrates the technical idea of the present invention and cannot be used to limit the protection scope of the present invention. For those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements all fall within the protection scope of the claims of the present invention.

Claims

1. A steel structure installation sling, including a telescopic arm (1) extended from a crane, characterized in that, A horizontal rod (2) is rotatably connected to the top of the telescopic arm (1). A hydraulic rod (6) is rotatably connected to the bottom of the horizontal rod (2), and the other end of the hydraulic rod (6) is rotatably connected to the side of the telescopic arm (1). A rotating member (3) extends downward from the end of the horizontal rod (2) away from the telescopic arm (1), and an adjusting member (4) is connected to the bottom of the rotating member (3); the adjusting member (4) includes a mounting seat (41) fixedly connected to the bottom of the rotating member (3). Three horizontally arranged winches (42) are respectively installed on the mounting seat (41), and the axis angle between adjacent winches (42) is 60 degrees. Each winch (42) winds a steel cable (43). The free end of each steel cable (43) passes downward through the pointed-angle through hole of the adjacent mounting seat (41), and the free end of each hanging steel cable (43) is fixedly connected to a clamping assembly (44).

2. The steel structure installation sling according to claim 1, characterized in that, The rotating member (3) includes a fixed shaft seat (31) fixedly connected to the horizontal rod (2) and perpendicular thereto. The bottom circular plate of the fixed shaft seat (31) is rotatably connected to a rotating shaft seat (32). A gear ring (34) is coaxially and fixedly connected to the top of the rotating shaft seat (32), and the gear ring (34) meshes with a gear (35). The gear (35) is coaxially and fixedly connected to a driving motor (36) fixedly connected to the horizontal rod (2).

3. A steel structure installation sling according to claim 2, characterized in that, A plurality of annular grooves coaxial with the fixed shaft seat (31) are formed in the bottom circular plate of the fixed shaft seat (31). A plurality of balls (33) are placed in each annular groove with an upward opening, and all the balls (33) jointly support the rotating shaft seat (32).

4. The steel structure installation sling according to claim 2, characterized in that, The diameter of the gear ring (34) is larger than that of the gear (35).

5. A steel structure installation sling according to claim 1, characterized in that, Each winch (42) includes a stator (421) fixedly connected to the mounting seat (41). A rotor (422) is rotatably sleeved outside the stator (421) coaxially. A drum (423) for winding the steel cable (43) is fixedly sleeved outside the rotor (422) coaxially.

6. The steel structure installation sling according to claim 1, characterized in that, Each clamping assembly (44) includes a ball head (441) fixedly connected to the end of the steel cable (43). The ball head (441) is rotatably connected to a ball shell (442). A C-shaped clamping seat (443) is fixedly connected to the non-opening side of the ball shell (442). An adjusting screw (446) is rotatably connected to the top plate and the bottom plate of the clamping seat (443) together. The adjusting screw (446) is threadedly connected to a movable clamping plate (444) adapted to the bottom plate of the clamping seat (443). A plurality of optical axes (445) parallel to the adjusting screw (446) are fixedly connected to the top plate and the bottom plate of the clamping seat (443) together, and all the optical axes (445) are slidably connected to the movable clamping plate (444). A compression spring (447) is coaxially and fixedly sleeved on each optical axis (445), and the compression spring (447) is arranged between the top plate of the clamping seat (443) and the movable clamping plate (444).

7. A steel structure installation sling according to claim 1, characterized in that, One end of the adjusting screw (446) close to the top plate of the clamping seat (443) is coaxially and fixedly sleeved with a hexagonal nut.

8. A steel structure installation sling according to claim 1, characterized in that, The bottom plates of the movable splint (444) and the clamping seat (443) are both provided with anti-slip grooves adapted for clamping.

9. A steel structure installation sling according to claim 1, characterized in that, Each pointed-angle through-hole of the mounting seat (41) is provided with at least two layers of horizontally arranged rollers (5). Each layer of rollers (5) is provided with two rollers (5) symmetric about the pointed-angle through-hole. The axes of the rollers (5) between adjacent layers are perpendicular to each other. All the rollers (5) are rotatably connected to the mounting seat (41), and the steel cable (43) passes through the cross-holes formed by all the rollers (5).

10. A steel structure installation sling according to claim 1, characterized in that, Both ends of the hydraulic rod (6) are respectively rotatably connected with a connecting seat (7), and the two connecting seats (7) are respectively fixedly connected to the outer walls of the telescopic arm (1) and the horizontal rod (2).

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