A self-regulating device applied to hoisting and transporting of metal plates

Abstract

The application relates to the technical field of metal plate hoisting, and particularly relates to a self-regulating device applied to metal plate hoisting and transportation, which comprises lateral lifting seats arranged on the two sides of the longer side of the metal plate and a lifting cable connected to a lifting machine, the lateral lifting seat comprises a lateral lifting frame sleeved on the two sides of the longer side of the metal plate, a plurality of electrically-controlled self-regulating mechanisms installed on the inner bottom surface of the lateral lifting frame, a top lifting frame installed on the upper surface of the lateral lifting frame, a lateral limiting frame installed on the outer lateral surface of the lateral lifting frame and a bottom lifting frame installed on the bottom of the lateral lifting frame. The electrically-controlled self-regulating mechanisms are used for real-time regulation of the tension distribution of the lifting cable, and the embedded pressure sensor and the electronic level control instrument are used for automatic level correction of the posture of the metal plate in the hoisting process, manual re-calibration of the lifting point is not needed, and the hoisting efficiency and safety are improved.

Description

Technical Field

[0001] This invention relates to the field of metal sheet hoisting technology, and in particular to a self-regulating device for hoisting and transporting metal sheets. Background Technology

[0002] Metal sheets are one of the most essential basic materials in industries such as steel structure manufacturing, shipbuilding, machining, and construction. The hoisting and transport of these sheets is a crucial part of the entire process, from raw material arrival to finished product assembly. The stability of the sheet's horizontal position during hoisting directly affects the accuracy of subsequent assembly, the surface quality of the sheet, and the safety of on-site operations. Currently, metal sheet hoisting still primarily relies on traditional cable binding. Operators need to estimate the sheet's center of gravity based on experience before installing the cables, and then manually adjust the lifting points to ensure the sheet remains roughly level after hoisting. This method heavily depends on individual experience and feel; finding the center of gravity is particularly difficult with large or unevenly weighted sheets, often requiring repeated trial lifts and adjustments to barely achieve the required level, resulting in very low efficiency during batch operations. Even more critically, once the sheet is lifted off the ground, it is easily tilted or swayed due to hoisting inertia, on-site wind force, or slight load shifts. Currently, conventional hoisting equipment lacks the capability for real-time fine-tuning of the sheet metal's posture during lifting. If any deviation occurs, the only solution is to place the sheet metal back on the ground, manually adjust the lifting points, and then lift it again, completely interrupting the entire process. Repeated grounding and adjustments not only severely slow down the construction schedule but also increase the risk of edge damage and localized deformation of the sheet metal. In severe cases, it can even cause the sheet metal to slip off the lifting cables or the cables to detach, posing a direct threat to equipment and personnel. Summary of the Invention

[0003] The technical problem this invention aims to solve is that existing metal sheet hoisting processes lack the ability to adjust the horizontal posture in real time during hoisting. Once a deviation occurs, the hoisting point needs to be recalibrated after landing, which affects work efficiency and safety.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a self-regulating device for lifting and transporting metal plates, including lateral lifting seats set on both sides of the longer side of the metal plate and lifting cables connected to the crane. The lateral lifting seats include lateral lifting frames fitted on both sides of the longer side of the metal plate, a plurality of electrically controlled self-regulating mechanisms installed on the bottom surface of the inner side of the lateral lifting frames, a top lifting frame installed on the upper surface of the lateral lifting frames, a lateral limiting frame installed on the outer side of the lateral lifting frames, and a bottom lifting frame installed at the bottom of the lateral lifting frames.

[0005] Furthermore, the lifting cable passes sequentially through the top lifting frame, lateral limiting frame, and bottom lifting frame on one end of the lateral lifting frame, and then passes through the bottom lifting frame, lateral limiting frame, and top lifting frame on the other end of the lateral lifting frame, finally connecting to the crane, forming a lifting arrangement with multiple stress points evenly distributed.

[0006] Furthermore, the bottom surface of the lateral suspension frame has a downwardly protruding bottom mounting base, and the bottom surface of the lateral suspension frame has a strip-shaped guide opening that cooperates with the electronically controlled self-regulating mechanism; the lower surface of the lateral suspension frame has a downwardly protruding bottom guide rail located around the lower end opening of the strip-shaped guide opening.

[0007] Furthermore, the electrically controlled self-regulating mechanism includes a horizontally mounted electrically controlled support rod fixed on the bottom mounting base, a sliding adjustment seat slidably installed inside the bottom guide rail, a lifting control support rod fixed at the lower end of the sliding adjustment seat, and a lifting support block installed inside the upper opening of the sliding adjustment seat; the horizontally mounted electrically controlled support rod controls the sliding adjustment seat to move horizontally along the bottom guide rail by extending and retracting, and the lifting control support rod controls the lifting support block to move up and down in the upper opening of the sliding adjustment seat by extending and retracting.

[0008] Furthermore, the upper end of the lifting support block is provided with a detection sinking groove, inside which is installed a detachable anti-slip block and an embedded internal pressure sensor located below the detachable anti-slip block; an embedded external pressure sensor is installed on the inner wall of the top hanging frame.

[0009] Furthermore, an optical ranging module is installed on the outside of the lateral suspension frame, and an electronic level controller is installed on the upper end of the lateral suspension frame.

[0010] The beneficial effects of this invention are as follows: Multiple electrically controlled self-regulating mechanisms installed at the bottom inner side of the lateral lifting frame, in conjunction with embedded pressure sensors and an electronic level controller, enable the system to perceive changes in the horizontal attitude of the lifting plate in real time. Through horizontally placed electrically controlled struts and lifting control struts, the position and height of each force point on the lifting cable are finely adjusted, directly completing automatic horizontal attitude correction during lifting, avoiding the tedious process of repeatedly adjusting the lifting points in traditional operations. The optical ranging module and electronic level controller provide multi-dimensional attitude feedback, forming a closed-loop control with the electrically controlled struts, ensuring both correction accuracy and response speed. The detachable anti-slip pad design ensures stable clamping of the plate while allowing for the replacement of anti-slip pads with different friction coefficients according to the plate surface material, adapting to the lifting needs of different materials such as steel and aluminum plates. This structure integrates the perception, judgment, and execution functions of horizontal attitude within the lateral lifting base, requiring no major modifications to existing cranes and cable systems, making on-site deployment convenient. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0013] Figure 2 This is a schematic diagram of the lateral suspension bracket in this invention.

[0014] Figure 3 This is a schematic diagram of the electrically controlled self-regulating mechanism in this invention.

[0015] In the diagram: 1. Lateral suspension frame; 2. Electrically controlled self-adjusting mechanism; 3. Top suspension frame; 4. Lateral limiting frame; 5. Bottom suspension frame; 6. Optical ranging module; 7. Electronic level controller; 11. Bottom mounting base; 12. Strip guide opening; 13. Bottom guide rail; 21. Horizontal electrically controlled support rod; 22. Sliding adjustment seat; 23. Lifting and adjusting support rod; 24. Lifting support block; 25. Detection sinking groove; 26. Detachable anti-slip block; 27. Embedded internal pressure sensor; 31. Embedded external pressure sensor. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0017] like Figure 1 , Figure 2 and Figure 3 The diagram illustrates a self-regulating device for lifting and transporting sheet metal, comprising lateral lifting seats positioned on both sides of the longer side of the sheet metal and lifting cables connected to a crane. Each lateral lifting seat consists of lateral lifting frames 1 fitted onto both sides of the longer side of the sheet metal, multiple electrically controlled self-regulating mechanisms 2 mounted on the inner bottom surface of the lateral lifting frames 1, a top lifting frame 3 fixed to the upper surface of the lateral lifting frames 1, a lateral limiting frame 4 fixed to the outer surface of the lateral lifting frames 1, and a bottom lifting frame 5 fixed to the bottom of the lateral lifting frames 1. The two lateral lifting seats clamp the sheet metal along its two longer sides. The lifting cable passes sequentially through the top lifting frame 3, the lateral limiting frame 4, and the bottom lifting frame 5 on one side, then through the corresponding bottom lifting frame 5, the lateral limiting frame 4, and the top lifting frame 3 on the other side before connecting to the crane. This passage method creates multiple support points for the lifting cable on both sides of the sheet metal's longer side, ensuring that the weight of the sheet metal is evenly distributed to the lifting cable through the lateral lifting frames during lifting, preventing excessive stress at any single point.

[0018] The inner bottom surface of the lateral lifting frame 1 has a downwardly protruding bottom mounting base 11 and a strip-shaped guide opening 12 along the length of the lateral lifting frame. The lower end of the strip-shaped guide opening 12 has a downwardly protruding bottom guide rail 13 around its perimeter, providing sliding guidance for the electrically controlled self-regulating mechanism 2. The electrically controlled self-regulating mechanism 2 includes a horizontally placed electrically controlled support rod 21, a sliding adjustment seat 22, a lifting control support rod 23, and a lifting support block 24. The fixed end of the horizontally placed electrically controlled support rod 21 is connected to the bottom mounting base 11, and the telescopic end is connected to the sliding adjustment seat 22, pushing the sliding adjustment seat 22 to move horizontally along the bottom guide rail 13. The lower end of the sliding adjustment seat 22 is fixed with the lifting control support rod 23, and the telescopic end of the lifting control support rod 23 passes upward into the opening at the upper end of the sliding adjustment seat 22 and connects to the lifting support block 24, controlling the up and down position of the lifting support block 24. By combining the actions of the horizontally placed electrically controlled support rod 21 and the lifting and adjusting support rod 23, the position of the lifting support block 24 in a two-dimensional plane can be adjusted.

[0019] Two sets of electrically controlled self-adjusting mechanisms 2 are installed at the lower end of each side suspension frame 1. These mechanisms control the positional relationship between the side suspension frame 1 and the metal plate through staggered lifting and translating. When the two lifting support blocks 24 support the metal plate, the horizontal position of the entire side suspension frame 1 can be adjusted by the horizontally placed electrically controlled support rod 21. Then, the lifting support blocks 24 are lowered one by one by the lifting control support rod 23 to separate from the lower surface of the metal plate and then translate back to their original position, thereby achieving the purpose of position adjustment.

[0020] The upper surface of the lifting support block 24 is provided with a detection sinking groove 25. A detachable anti-slip block 26 is placed inside the detection sinking groove 25, and an embedded internal pressure sensor 27 is installed below the detachable anti-slip block 26. When the suspension cable is pressed into the detection sinking groove 25, the embedded internal pressure sensor 27 measures the pressure applied by the suspension cable to the lifting support block 24 in real time. An embedded external pressure sensor 31 is installed on the inner wall of the top suspension frame 3 to detect the tension of the suspension cable at the top suspension frame 3. An optical distance measuring module 6 is installed on the outer side of the side suspension frame 1 to measure the change in the distance between the left and right side suspension seats, indirectly reflecting the horizontal offset of the plate. An electronic level controller 7 is also installed at the upper end of the side suspension frame 1 to directly detect the tilt angle of the side suspension seats themselves.

[0021] The control logic of this device is as follows: Before lifting, the operator places the lateral lifting frames 1 on both sides of the long side of the metal plate and adjusts the initial positions of each electrically controlled self-regulating mechanism 2 to ensure that the lifting cable is subjected to basically uniform force. During lifting, the embedded internal pressure sensor 27, the embedded external pressure sensor 31, the optical ranging module 6, and the electronic level controller 7 simultaneously begin to collect data. If the plate tilts during lifting, for example, if one side is lower, the reading of the embedded external pressure sensor 31 at the top lifting frame 3 on that side increases, and at the same time, the electronic level controller 7 detects that the tilt angle exceeds the set range. The control system determines the direction and degree of tilt based on sensor data, and controls the electrically controlled self-adjusting mechanism 2 on the lower side to activate. This mechanism uses a horizontally mounted electrically controlled support rod 21 to push the sliding adjustment seat 22 along the bottom guide rail 13 towards the outside of the plate, changing the point of force application of the lifting cable on that side. Simultaneously, the height of the lifting support block 24 is adjusted via the lifting control rod 23, increasing the supporting torque of the lifting cable on that side. This gradually raises the lower side until the posture data fed back by the electronic level controller 7 returns to normal. The entire adjustment process is continuous during hoisting, without requiring machine shutdown or grounding.

Claims

1. A self-regulating device for lifting and transporting metal sheets, comprising lateral lifting seats disposed on both sides of the longer side of the metal sheet and lifting cables connected to a crane, characterized in that: The lateral suspension bracket includes a lateral suspension frame (1) on both sides of the longer side of the metal plate, several electrically controlled self-regulating mechanisms (2) installed on the inner bottom surface of the lateral suspension frame (1), a top suspension frame (3) installed on the upper surface of the lateral suspension frame (1), a lateral limiting frame (4) installed on the outer side of the lateral suspension frame (1), and a bottom suspension frame (5) installed at the bottom of the lateral suspension frame (1).

2. The self-regulating device for lifting and transporting metal sheets according to claim 1, characterized in that: The hoisting cable passes sequentially through the top hoisting frame (3), the side limiting frame (4) and the bottom hoisting frame (5) on one end of the side hoisting frame (1), and then passes through the bottom hoisting frame (5), the side limiting frame (4) and the top hoisting frame (3) on the other end of the side hoisting frame (1), and finally connects to the crane.

3. The self-regulating device for lifting and transporting metal sheets according to claim 1, characterized in that: The inner bottom surface of the side hanging frame (1) has a bottom mounting seat (11) that protrudes downwards, and a strip guide opening (12) that cooperates with the electric self-regulating mechanism (2) is provided on the inner bottom surface of the side hanging frame (1).

4. The self-regulating device for lifting and transporting metal sheets according to claim 3, characterized in that: The lower surface of the lateral hanging frame (1) has a bottom guide rail (13) that protrudes downward around the lower opening of the strip guide opening (12).

5. The self-regulating device for hoisting and transporting metal sheets according to claim 4, characterized in that: The electronically controlled self-regulating mechanism (2) includes a horizontally placed electronically controlled support rod (21) fixed on the bottom mounting base (11), a sliding adjustment seat (22) slidably installed inside the bottom guide rail (13), a lifting adjustment support rod (23) fixed at the lower end of the sliding adjustment seat (22), and a lifting support block (24) installed inside the upper opening of the sliding adjustment seat (22).

6. The self-regulating device for lifting and transporting metal sheets according to claim 5, characterized in that: The horizontally placed electric control strut (21) controls the sliding adjustment seat (22) to move and adjust along the bottom guide rail (13) by extension and retraction. The lifting control strut (23) controls the lifting support block (24) to lift and adjust at the opening at the upper end of the sliding adjustment seat (22) by extension and retraction.

7. The self-regulating device for lifting and transporting metal sheets according to claim 5, characterized in that: The upper end of the lifting support block (24) is provided with a detection sinking groove (25), and the detection sinking groove (25) is provided with a detachable anti-slip block (26) and an embedded internal pressure sensor (27) located below the detachable anti-slip block (26).

8. The self-regulating device for lifting and transporting metal sheets according to claim 2, characterized in that: An embedded external pressure sensor (31) is installed on the inner wall of the top hanging frame (3).

9. The self-regulating device for lifting and transporting metal sheets according to claim 1, characterized in that: An optical ranging module (6) is installed on the outside of the lateral hanging frame (1).

10. The self-regulating device for lifting and transporting metal sheets according to claim 1, characterized in that: An electronic level controller (7) is installed on the upper end of the lateral suspension frame (1).

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