A lifting device for multi-directional precise attitude adjustment of aerial work

Abstract

The application provides a lifting device for high-altitude operation multidirectional precise attitude adjustment, which comprises a base frame, attitude adjustment devices and a lifting mechanism, four attitude adjustment devices are arranged on the top of the base frame, and the lifting mechanism is installed on the four attitude adjustment devices, and the lifting mechanism drives a lifting hook through a steel strand to perform lifting. The application can be applied to complex roof steel structure lifting construction, realizes horizontal four-direction attitude adjustment of steel structure components and movement of component plane position, combines with a laser ranging device to ensure the precision of complex component installation, and is especially suitable for high-altitude position adjustment of overweight components. Compared with traditional lifting equipment, the application considers lifting, attitude adjustment, plane movement and other functions, reduces the investment of a truck crane and auxiliary hoisting equipment, and avoids technical risks of manual high-altitude operation.

Description

Technical Field

[0001] This invention relates to the field of steel structure construction technology, and in particular to a lifting device for multi-directional precision posture adjustment during high-altitude operations. Background Technology

[0002] With the development of prefabricated steel structures, more and more projects are adopting complex steel space frame or truss structures for their roofs. The weight of these roof steel structures can reach thousands of tons. Conventional tower cranes or truck cranes cannot meet the lifting capacity or lifting range requirements. Therefore, a combination of lifting jigs and lifting equipment is often used for lifting. Within the plane of the roof steel structure, multiple lifting devices are designed to meet the requirements of lifting weight and stability.

[0003] Currently, most lifting equipment for complex rooftop steel structures uses a single lifting device, resulting in low levels of modernization. After the steel structure is lifted to a high altitude, the weight of the composite components makes effective attitude adjustment impossible, leading to insufficient installation accuracy. Furthermore, conventional lifting equipment can only perform vertical lifting movements. If there are deviations in the lifting position or structural deviations due to wind speed or other factors during construction, large steel components must be lowered to the ground and re-lifted. Multiple repeated lifting operations significantly impact the construction period and exponentially increase the risks associated with high-altitude lifting. Summary of the Invention

[0004] To address the aforementioned problems, this invention aims to propose a lifting device for multi-directional precision attitude adjustment in high-altitude operations. This device comprises four attitude adjustment devices mounted on the top of a base frame, each equipped with a lifting mechanism. The lifting mechanism uses steel strands to drive a hook for hoisting. This solves the problem of ineffective attitude adjustment after hoisting large and complex steel structural components, leading to significant hoisting errors and compromised project schedule and hoisting risks.

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

[0006] A lifting device for multi-directional precision attitude adjustment in high-altitude operations includes a base frame, attitude adjustment devices, and a lifting mechanism. Four attitude adjustment devices are installed on the top of the base frame, and the lifting mechanism is installed on the four attitude adjustment devices. The lifting mechanism drives the hook to lift the object by means of steel strands.

[0007] Furthermore, the base frame includes a lifting frame and a connecting frame. There are two sets of lifting frames, and the upper parts of the two sets of lifting frames are connected by the connecting frame. A control box is provided on one side of the lifting frame for controlling the posture adjustment device and the lifting mechanism.

[0008] Furthermore, the posture adjustment device includes a support, a hydraulic cylinder, a posture adjustment frame, and a V-shaped drive frame. The support is installed on the top of the base frame. A first bracket is provided on one side of the support, and a second bracket is provided on the other side. The fixed end of the hydraulic cylinder is rotatably connected to the first bracket, and the telescopic end is rotatably connected to one top end of the V-shaped drive frame. The other top end of the V-shaped drive frame is drivenly connected to the posture adjustment frame. The bottom of the V-shaped drive frame is rotatably connected to the second bracket, and the posture adjustment frame is connected to the bottom of the lifting mechanism.

[0009] Furthermore, the posture adjustment frame includes a horizontal support frame and a vertical track. One end of the horizontal support frame is slidably connected to the vertical track, and the other end is provided with a horizontal support hole. The top end of the V-shaped drive frame is limited and installed in the horizontal support hole by a rotating wheel. The vertical track is vertically installed on the support. The top of the horizontal support frame is connected to the bottom of the lifting mechanism through a first support frame and a second support frame.

[0010] Furthermore, the lifting mechanism includes a jacking support, a lifting device, and a guide frame. The lifting device and the guide frame are installed inside the jacking support. The lifting device is fixed and guided by the guide frame and is lifted by a hook driven by a steel strand.

[0011] Furthermore, it also includes a fall arrestor, which is installed on the lifting support and is connected to the component simultaneously with the hook during lifting.

[0012] Furthermore, the lifting support includes a secondary crossbeam and a main crossbeam, and the secondary crossbeam and the main crossbeam are spliced ​​together to form a frame-type lifting support.

[0013] Furthermore, the frame-type lifting support is provided with a horizontal moving track inside, and a pulley assembly is installed in the horizontal moving track. A lifter and a guide frame are fixedly installed on the pulley assembly.

[0014] Furthermore, it also includes electric push rods, which are in two sets and are respectively installed at both ends of the frame-type lifting support to drive the pulley assembly to move left and right within the horizontal moving track.

[0015] Furthermore, it also includes a rangefinder, of which there are four sets, each installed on the lower part of the frame-type lifting support to measure the lifting height of the component.

[0016] Beneficial effects: This invention can be applied to the lifting and construction of complex roof steel structures, realizing the horizontal attitude adjustment and planar position movement of steel structure components in four directions. Combined with laser ranging equipment, it ensures the installation accuracy of complex components, especially for the high-altitude position adjustment of heavy components. Compared with traditional lifting equipment, this invention integrates lifting, attitude adjustment, and planar movement functions, reducing the investment in truck cranes and auxiliary lifting equipment, and avoiding the technical risks of manual high-altitude operations. Attached Figure Description

[0017] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 This is a front view of the lifting device for multi-directional precision attitude adjustment in high-altitude operations according to an embodiment of the present invention;

[0019] Figure 2 This is a top view of the lifting device for multi-directional precision attitude adjustment in high-altitude operations as described in an embodiment of the present invention;

[0020] Figure 3 This is a rendering of the lifting device for multi-directional precision attitude adjustment in high-altitude operations as described in an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the posture adjustment device (without the support) of the lifting device for multi-directional precision posture adjustment in high-altitude operations according to an embodiment of the present invention. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] Example 1

[0025] See Figure 1-4 A lifting device for multi-directional precision attitude adjustment in high-altitude operations includes a base frame, attitude adjustment devices, and a lifting mechanism. Four attitude adjustment devices are installed on the top of the base frame, and the lifting mechanism is installed on the four attitude adjustment devices. The lifting mechanism drives the hook 13 to lift the object by means of a steel strand 12.

[0026] When the posture of the lifted steel structure component is not in place, this embodiment can make fine adjustments through the four posture adjustment devices at the bottom of the lifting mechanism, thereby solving the problem that the posture of large and complex steel structure components cannot be effectively adjusted after lifting, resulting in large lifting errors and the inability to guarantee the construction period and lifting risks.

[0027] In a specific example, the base frame includes a lifting frame 1 and a connecting frame 2. There are two sets of lifting frames 1, and the upper parts of the two sets of lifting frames 1 are connected by the connecting frame 2. A control box 17 is provided on one side of the lifting frame 1 for controlling the posture adjustment device and the lifting mechanism.

[0028] In this embodiment, the upper parts of the two sets of lifting frames are spliced ​​together by connecting frames to improve the stability of the base frame structure; the posture adjustment device and lifting mechanism can be controlled in real time through the control box.

[0029] In a specific example, the posture adjustment device includes a support 3, a hydraulic cylinder 4, a posture adjustment frame 5, and a V-shaped drive frame 8. The support 3 is installed on the top of the base frame. A first bracket 301 is provided on one side of the support 3, and a second bracket 302 is provided on the other side. The fixed end of the hydraulic cylinder 4 is rotatably connected to the first bracket 301, and the telescopic end is rotatably connected to one top end of the V-shaped drive frame 8. The other top end of the V-shaped drive frame 8 is drivenly connected to the posture adjustment frame 5. The bottom of the V-shaped drive frame 8 is rotatably connected to the second bracket 302. The posture adjustment frame 5 is connected to the bottom of the lifting mechanism.

[0030] In this embodiment, a hydraulic cylinder drives the V-shaped drive frame to rotate, thereby driving the posture adjustment frame connected to one end of the top of the V-shaped drive frame to rise or fall, thus enabling precise posture adjustment of the lifting mechanism on the upper part of the posture adjustment frame.

[0031] In a specific example, the posture adjustment frame 5 includes a horizontal support frame 501 and a vertical track 502. One end of the horizontal support frame 501 is slidably connected to the vertical track 502, and the other end is provided with a horizontal support hole 5011. The top end of the V-shaped drive frame 8 is limited and installed in the horizontal support hole 5011 by a rotating wheel 801. The vertical track 502 is vertically installed on the support 3. The top of the horizontal support frame 501 is connected to the bottom of the lifting mechanism through a first support frame 5012 and a second support frame 5013, respectively.

[0032] In this embodiment, when driven by a hydraulic cylinder, the V-shaped drive frame flips and rotates within the transverse support hole via rotating wheels, supporting and driving the transverse support frame to move up and down. Due to the presence of the vertical track, the up and down movement of the transverse support frame in this embodiment remains vertical, thereby allowing for precise adjustment of the vertical direction and posture position during lifting operations.

[0033] In a specific example, the lifting mechanism includes a lifting support, a lifting device 11, and a guide frame 18. The lifting device 11 and the guide frame 18 are installed inside the lifting support. The lifting device 11 is fixed and guided by the guide frame 18 and is lifted by the hook 13 driven by the steel strand 12.

[0034] In this embodiment, the steel strand is driven and guided by a lifting device and a guide frame, thereby improving the vertical accuracy and stability of the hook lifting.

[0035] It should be noted that, in this embodiment, two or more lifting devices can be set according to the lifting weight and adjustment range. When multiple lifting device units are used, the lifting posture adjustment range is larger.

[0036] In a specific example, a fall arrestor 16 is also included, which is installed on the lifting support and is connected to the component simultaneously with the hook 13 when the component is being lifted.

[0037] When the component in this embodiment suddenly falls, it can form an emergency safety protection through the self-locking function of the fall arrestor.

[0038] In a specific example, the lifting support includes a secondary crossbeam 7 and a main crossbeam 9, which are spliced ​​together to form a frame-type lifting support.

[0039] In a specific example, the frame-type lifting support is provided with a horizontal moving track 6 inside, and a pulley assembly 14 is installed in the horizontal moving track. A lifter 11 and a guide frame 18 are fixedly installed on the pulley assembly 14.

[0040] In this embodiment, the pulley assembly, in conjunction with the horizontal moving track inside the frame-type lifting support, allows the lifting device and guide frame to move in the horizontal plane, thereby controlling the position adjustment of the hoisting components in the horizontal plane.

[0041] In a specific example, it also includes electric push rods 10, which are in two sets and are respectively installed at both ends of the frame-type lifting support to drive the pulley assembly 14 to move left and right within the horizontal moving track 6.

[0042] It should be noted that in this embodiment, the two sets of electric push rods correspond to "one extension and one retraction" respectively, thereby providing stable left and right drive for the pulley assembly and preventing instability in the horizontal movement adjustment process of the lifting device, guide frame and the components hoisted by the hook at the bottom of the pulley assembly.

[0043] In a specific example, a rangefinder 15 is also included, which consists of four sets, each installed on the lower part of the frame-type lifting support for measuring the lifting height of the component.

[0044] In this embodiment, the lifting height of the component can be measured in real time using four rangefinders located near the lifter.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lifting device for multi-directional precision attitude adjustment in high-altitude operations, characterized in that, The system includes a base frame, posture adjustment devices, and a lifting mechanism. Four posture adjustment devices are installed on the top of the base frame, and a lifting mechanism is mounted on each of the four posture adjustment devices. The lifting mechanism uses a steel strand (12) to drive a hook (13) for lifting. Each posture adjustment device includes a support (3), a hydraulic cylinder (4), a posture adjustment frame (5), and a V-shaped drive frame (8). The support (3) is installed on the top of the base frame. One side of the support (3) has a first bracket (301), and the other side has a second bracket (302). The fixed end of the hydraulic cylinder (4) is rotatably connected to the first bracket (301), and the telescopic end is rotatably connected to one end of the top of the V-shaped drive frame (8). The other end of the top of the V-shaped drive frame (8) is connected to the posture adjustment frame (5) via a drive mechanism. The bottom of the V-shaped drive frame (8) is rotatably connected to the second bracket (302), and the posture adjustment frame (5) is connected to the bottom of the lifting mechanism. The posture adjustment frame (5) includes a horizontal support frame (501) and a vertical rail (502). One end of the horizontal support frame (501) is slidably connected to the vertical rail (502), and the other end is provided with a horizontal support hole (5011). The top end of the V-shaped drive frame (8) is limited and installed in the horizontal support hole (5011) by a rotating wheel (801). The vertical rail (502) is vertically installed on the support (3). The top of the horizontal support frame (501) is connected to the bottom of the lifting mechanism through the first support frame (5012) and the second support frame (5013).

2. The lifting device for multi-directional precision attitude adjustment in high-altitude operations according to claim 1, characterized in that, The base frame includes a lifting frame (1) and a connecting frame (2). The lifting frame (1) consists of two sets, and the upper parts of the two sets of lifting frames (1) are connected by the connecting frame (2). A control box (17) is provided on one side of the lifting frame (1) for controlling the posture adjustment device and the lifting mechanism.

3. The lifting device for multi-directional precision attitude adjustment in high-altitude operations according to claim 1, characterized in that, The lifting mechanism includes a lifting support, a lifting device (11) and a guide frame (18). The lifting support is equipped with the lifting device (11) and the guide frame (18). The lifting device (11) is fixed and guided by the guide frame (18) and the hook (13) is driven by the steel strand (12) for lifting.

4. The lifting device for multi-directional precision attitude adjustment in high-altitude operations according to claim 3, characterized in that, It also includes a fall arrestor (16), which is installed on the lifting support. When the component is lifted, the fall arrestor (16) and the hook (13) are connected to the component at the same time.

5. The lifting device for multi-directional precision attitude adjustment in high-altitude operations according to claim 3, characterized in that, The lifting support includes a secondary crossbeam (7) and a main crossbeam (9), which are spliced ​​together to form a frame-type lifting support.

6. The lifting device for multi-directional precision attitude adjustment in high-altitude operations according to claim 5, characterized in that, The frame-type lifting support is provided with a horizontal moving track (6) inside, and a pulley assembly (14) is installed in the horizontal moving track. A lifter (11) and a guide frame (18) are fixedly installed on the pulley assembly (14).

7. The lifting device for multi-directional precision attitude adjustment in high-altitude operations according to claim 6, characterized in that, It also includes electric push rods (10), which are in two sets and are installed at both ends of the frame-type lifting support to drive the pulley assembly (14) to move left and right in the horizontal moving track (6).

8. The lifting device for multi-directional precision attitude adjustment in high-altitude operations according to claim 5, characterized in that, It also includes a rangefinder (15), which consists of four sets, each installed on the lower part of the frame-type lifting support to measure the lifting height of the component.

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