A curtain wall unit board hoisting and overturning balancer

Abstract

The utility model discloses a curtain wall unit board hoist overturning balancer, including main shaft, rectangular frame and six sucking disc of setting in the upper and lower symmetry of rectangular frame both ends and middle part, the top center of rectangular frame is connected with main shaft through first cross axle universal joint, six sucking disc install in the bottom of rectangular frame through corresponding second cross axle universal joint respectively. This balancer can realize self -adaptation dynamic balance, promotes hoisting accuracy. Adopt seven cross axle universal joint (main shaft 1 + sucking disc axle 6) multiple freedom degree adjustment, and combine inclination sensor real -time detection aluminum plate inclination state (±0.1 degree precision), through servo motor drive counterweight slider dynamic adjustment position, and automatically offset unbalanced moment.

Description

Technical Field

[0001] This utility model belongs to the field of building curtain wall construction equipment, specifically relating to a curtain wall unit panel hoisting and turning balancer. Background Technology

[0002] In modern architectural design, hyperbolic metal panel curtain walls are widely used due to their unique artistic effect. However, their non-coplanar nature makes them prone to tipping and collisions during hoisting. Traditional hoisting equipment cannot adaptively adjust angles, making it difficult to balance the unbalanced torque caused by the shift in the center of gravity of the aluminum panels. This results in low construction efficiency and significant safety hazards. Taking the Qianhai Museum in Shenzhen as an example, the curtain wall project required the installation of 70,830 aluminum panels. The irregular shapes and specifications of these panels were complex, involving 11,751 different sizes. Traditional methods relied on manual adjustment of the counterweights, which was time-consuming, labor-intensive, and lacked precision. Existing balancers mostly use fixed counterweights or simple hinge structures, lacking dynamic balancing technology and unable to respond in real time to the tilt of the aluminum panels, leading to frequent problems such as swaying and slippage during hoisting. Furthermore, there are issues with insufficient numbers or unreasonable layouts of universal joints, making it difficult to adapt to the multi-angle rotation requirements of the hyperbolic panels. Additionally, the lack of a closed-loop dynamic control system means that counterweight adjustment relies on experience and cannot accurately match the unbalanced torque of the aluminum panels. Summary of the Invention

[0003] Purpose of the utility model: The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a high-efficiency hoisting device that can achieve adaptive angle adjustment, dynamic balance control, and adjustable adaptation to aluminum plate size, so as to solve the problem of flipping and collision during the construction of irregular curtain walls and improve construction safety and accuracy.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A curtain wall unit panel hoisting and tilting balancer includes a main shaft, a rectangular frame, and six suction cups symmetrically arranged at both ends and the middle of the rectangular frame; the top center of the rectangular frame is connected to the main shaft through a first cross-shaped universal joint; the six suction cups are respectively installed at the bottom of the rectangular frame through corresponding second cross-shaped universal joints.

[0005] Furthermore, both the first and second universal joints include an upper connecting block and a lower connecting block; the upper connecting block of the first universal joint is connected to the main shaft via a flange joint, and the lower connecting block of the first universal joint is fixed to the center of the rectangular frame via a flange joint or welding; the upper connecting block of the second universal joint is connected to the rectangular frame via a flange joint, and the lower connecting block of the first universal joint is connected to the suction cup via a flange joint or welding.

[0006] Furthermore, the upper connecting block and the lower connecting block are rotatably connected by two mutually perpendicular horizontal rotating shafts.

[0007] Furthermore, a counterweight balancing module is arranged horizontally and parallel inside the rectangular frame.

[0008] Specifically, the counterweight balancing module includes a lead screw, a counterweight slider, and a servo motor; one end of the lead screw is connected to the servo motor, and the counterweight slider is mounted on the lead screw. The servo motor drives the lead screw to rotate, thereby adjusting the position of the counterweight slider on the rectangular frame.

[0009] Furthermore, tilt sensors are respectively installed at the four corners of the rectangular frame; the tilt sensors are connected to the servo motor through a PLC circuit, and the servo motor drives the counterweight slider to move along the lead screw, so that the tilt angle of the aluminum plate detected by the tilt sensors in real time is controlled within a preset range.

[0010] Furthermore, the rectangular frame includes two crossbeams and a set of longitudinal beams connecting the two crossbeams.

[0011] Furthermore, the two crossbeams include an outer tube and an inner tube that can be telescopically inserted into the outer tube, the depth of which the inner tube is inserted into the outer tube is adjustable.

[0012] Compared with the prior art, this utility model has the following advantages: (1) The balancer of this utility model can achieve adaptive dynamic balance and improve the hoisting accuracy. It adopts a multi-degree-of-freedom adjustment with seven cross-shaft universal joints (1 main shaft + 6 suction cup shafts), combined with the tilt sensor to detect the tilt state of the aluminum plate in real time (±0.1° accuracy), and the counterweight slider is dynamically adjusted by the servo motor to automatically counteract the unbalanced torque.

[0013] (2) The retractable horizontal axis of this balancer is designed to fit aluminum plates of different sizes (such as the 11751 specifications of Shenzhen Museum). It uses suction cup shaft universal joint to independently adjust and precisely fit the local warping of the hyperbolic panel (such as the 80mm→0mm gradient).

[0014] (3) This balancer can double the efficiency of assembly and construction. It adopts a closed-loop automatic control system, and the entire process from tilt detection to counterweight adjustment takes ≤3 seconds (replacing the traditional manual process which takes 5~10 minutes). The quick disassembly and assembly of the universal joint and slide rail system, combined with modular assembly, can reduce the transfer time by 50%.

[0015] (4) This balancer can use all standardized components, has low maintenance costs, and is especially suitable for ultra-large-scale curtain wall projects. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, and the advantages of the present invention in the above and / or other aspects will become clearer.

[0017] Figure 1 This is a schematic diagram of the overall structure of the balancer of this utility model.

[0018] Figure 2 This is a top view of the balancer of this utility model.

[0019] Figure 3 This is a schematic diagram of the cross-shaft universal joint structure of the balancer of this utility model.

[0020] Figure 4 This is a diagram showing the arrangement of the cross-shaft universal joint in the balancer of this utility model.

[0021] Figure 5 This is a schematic diagram showing the connection between the first cross shaft universal joint and the main shaft via a flange connector.

[0022] Figure 6 This is a schematic diagram of the insertion structure between the inner and outer tubes in the crossbeam.

[0023] In the diagram, the various reference numerals represent: 1-Spindle; 2-Universal joint; 21-Upper connecting block; 22-Lower connecting block; 23-Flange joint; 24-Horizontal rotating shaft; 3-Servo motor; 4-Lead screw; 5-Counterweight slider; 6-Tilt sensor; 7-Rectangular frame; 71-Crossbeam; 72-Longitudinal beam; 73-Outer tube; 74-Inner tube; 8-Suction cup. Detailed Implementation

[0024] The present invention can be better understood from the following embodiments.

[0025] The structures, proportions, and sizes shown in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, terms such as "upper," "lower," "front," "rear," and "middle" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0026] like Figure 1As shown, the curtain wall unit panel hoisting and flipping balancer of this utility model includes a main shaft 1, a rectangular frame 7, and six suction cups 8 symmetrically arranged at both ends and the middle of the rectangular frame 7; the top center of the rectangular frame 7 is connected to the main shaft 1 through a first cross-shaft universal joint; the six suction cups 8 are respectively installed at the bottom of the rectangular frame 7 through corresponding second cross-shaft universal joints.

[0027] Furthermore, both the first and second universal joints include an upper connecting block 21 and a lower connecting block 22. The upper connecting block 21 of the first universal joint is connected to the main shaft 1 via a flange joint 23, and the lower connecting block 22 of the first universal joint is fixed to the center of the rectangular frame 7 via a flange joint 23 or by welding. The upper connecting block 21 of the second universal joint is connected to the rectangular frame 7 via a flange joint 23, and the lower connecting block 22 of the first universal joint is connected to the suction cup 8 via a flange joint 23 or by welding.

[0028] In this invention, the upper connecting block 21 and the lower connecting block 22 are rotatably connected by two mutually perpendicular horizontal rotating shafts 24.

[0029] In this invention, a counterweight balancing module is arranged horizontally and parallel inside the rectangular frame 7.

[0030] In this utility model, the counterweight balancing module includes a lead screw 4, a counterweight slider 5, and a servo motor 3; one end of the lead screw 4 is connected to the servo motor 3, and the counterweight slider 5 is mounted on the lead screw 4. The servo motor 3 drives the lead screw 4 to rotate, thereby adjusting the position of the counterweight slider 5 on the rectangular frame 7.

[0031] In this invention, tilt sensors 6 are respectively provided at the four corners of the rectangular frame 7; the tilt sensors 6 are connected to the servo motor 3 through a PLC circuit, and the servo motor 3 drives the counterweight slider 5 to move along the lead screw 4, so that the tilt angle of the aluminum plate detected by the tilt sensors 6 in real time is controlled within a preset range.

[0032] The main shaft 1 is connected to the hoisting equipment. The hoisting angle is adjusted using the universal joint 2 between the main shaft 1 and the rectangular frame 7. The rectangular frame 7 connects to the balancing system and six suction cup shafts. The balancing system consists of a servo motor 3, a lead screw 4, a counterweight slider 5, and a high-precision dual-axis tilt sensor 6. First, the horizontal offset distance between the center of gravity of the aluminum plate and the hoisting point is determined by the dimensions and mass of the aluminum plate. The calculation formula is as follows: ; Where L is the length of the aluminum plate. This is the absolute value of the reading of the high-precision dual-axis tilt sensor 6.

[0033] When the counterweight slide 5 is in standby position, it is positioned corresponding to the lead screw 4 and the main shaft 1. If the readings of the two dual-axis tilt sensors on the left are... >0, readings from the two dual-axis tilt sensors on the right. <0, meaning the aluminum plate is higher on the left and lower on the right, the counterweight slider 5 needs to be moved to the left. If the readings of the two dual-axis tilt sensors on the left are... <0, readings from the two dual-axis tilt sensors on the right. >0, meaning the aluminum plate is higher on the right and lower on the left, the counterweight slider 5 needs to be moved to the right. This is measured by the horizontal offset distance between the aluminum plate's center of gravity and the suspension point. The formula for calculating the relative distance d between the counterweight slider 5 and the main shaft 1 in the direction of movement is as follows: ; Where d is the relative distance between the counterweight slider and the main shaft in the direction of movement. This is the horizontal offset distance between the center of gravity of the aluminum plate and the lifting point. For the quality of aluminum plates, The mass of the counterweight slider.

[0034] The horizontal offset distance between the center of gravity of the aluminum plate and the suspension point By determining the relative distance d between the counterweight slider and the main shaft in the direction of movement, and dynamically adjusting the position of the counterweight slider relative to the main shaft, dynamic balance of the aluminum plate can be achieved during the hoisting process.

[0035] In this utility model, the rectangular frame 7 includes two horizontal beams 71 and a set of longitudinal beams 72 connected between the two horizontal beams 71.

[0036] In this utility model, the two crossbeams 71 include an outer tube 73 and an inner tube 74 that can be telescopically inserted into the outer tube 73, and the depth of the inner tube 74 inserted into the outer tube 73 can be adjusted.

[0037] To address issues such as large deflection torque and loss of control in mid-air during the hoisting of hyperbolic metal panel curtain wall units (four points not coplanar), this balancer employs a cross-axis universal joint as the core adjustment mechanism to achieve adaptive angle compensation during hoisting, ensuring stable panel placement. The cross-axis universal joint in the main shaft uses right-hand rotation compensation when the aluminum panel is higher on the left and lower on the right, and uses forward and backward pitch compensation when tilting forward or backward. The adjustment of the cross-axis universal joint in the suction cup shaft and the adjustment of the horizontal axis length are determined according to the different sizes and characteristics of the aluminum panels.

[0038] This utility model provides a concept and method for a curtain wall unit panel hoisting and tilting balancer. There are many methods and approaches to implement this technical solution; the above description is only a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. A curtain wall unit panel hoisting and tilting balancer, characterized in that, It includes a main shaft (1), a rectangular frame (7), and six suction cups (8) symmetrically arranged at both ends and the middle of the rectangular frame (7); the top center of the rectangular frame (7) is connected to the main shaft (1) through a first cross-shaped universal joint; the six suction cups (8) are respectively installed at the bottom of the rectangular frame (7) through corresponding second cross-shaped universal joints; The first and second universal joints both include an upper connecting block (21) and a lower connecting block (22); the upper connecting block (21) of the first universal joint is connected to the main shaft (1) through a flange joint (23), and the lower connecting block (22) of the first universal joint is fixed to the center of the rectangular frame (7) through a flange joint (23) or by welding; the upper connecting block (21) of the second universal joint is connected to the rectangular frame (7) through a flange joint (23), and the lower connecting block (22) of the first universal joint is connected to the suction cup (8) through a flange joint (23) or by welding.

2. The curtain wall unit panel hoisting and tilting balancer according to claim 1, characterized in that, The upper connecting block (21) and the lower connecting block (22) are rotatably connected by two mutually perpendicular horizontal rotating shafts (24).

3. The curtain wall unit panel hoisting and tilting balancer according to claim 1, characterized in that, The rectangular frame (7) has a counterweight balancing module arranged horizontally and parallel inside.

4. The curtain wall unit panel hoisting and tilting balancer according to claim 3, characterized in that, The counterweight balancing module includes a lead screw (4), a counterweight slider (5), and a servo motor (3); one end of the lead screw (4) is connected to the servo motor (3), and the counterweight slider (5) is mounted on the lead screw (4). The servo motor (3) drives the lead screw (4) to rotate, thereby adjusting the position of the counterweight slider (5) on the rectangular frame (7).

5. The curtain wall unit panel hoisting and tilting balancer according to claim 4, characterized in that, The rectangular frame (7) is equipped with tilt sensors (6) at its four corners. The tilt sensors (6) are connected to the servo motor (3) via a PLC circuit. The servo motor (3) drives the counterweight slider (5) to move along the lead screw (4), so that the tilt angle of the aluminum plate detected by the tilt sensor (6) in real time is controlled within the preset range.

6. The curtain wall unit panel hoisting and tilting balancer according to claim 1, characterized in that, The rectangular frame (7) includes two crossbeams (71) and a set of longitudinal beams (72) connecting the two crossbeams (71).

7. The curtain wall unit panel hoisting and tilting balancer according to claim 6, characterized in that, The two crossbeams (71) include an outer tube (73) and an inner tube (74) that can be telescopically inserted into the outer tube (73), the depth of which the inner tube (74) is inserted into the outer tube (73) is adjustable.

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