Hoisting apparatus and hoisting system

Abstract

The application discloses a lifting device and a hoisting system, wherein the lifting device comprises a lifting frame, a first lifting device, a second lifting device and a balance adjusting device; the first lifting device comprises a first pulley block, a first hoisting rope and a first lifting arm, the first hoisting rope is wound on the first pulley block and is used for lifting the first lifting arm; the second lifting device comprises a second pulley block, a second hoisting rope and a second lifting arm, the second hoisting rope is wound on the second pulley block and is used for lifting the second lifting arm; the balance adjusting device comprises a balance frame movably arranged between the first pulley block and the second pulley block and a moving driving member, the first hoisting rope and the second hoisting rope are connected with the balance frame, and the moving driving member can drive the balance frame to move so as to drive the first lifting arm and the second lifting arm to ascend and descend through the first hoisting rope and the second hoisting rope respectively, so that the first lifting arm and the second lifting arm are uniformly stressed, and the hoisting stability and the operation safety are greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of lifting equipment technology, specifically relating to a lifting device and lifting system. Background Technology

[0002] Currently, in heavy-duty special lifting operations, steel wire ropes are typically used to connect the workpieces to be lifted. Large workpieces are lifted by raising the steel wire ropes. However, due to the large mass of the workpieces, the limited number of lifting points, and the irregular shape of the workpieces, the steel wire ropes are subjected to high stress during the lifting process. The lifting weight at each lifting point is inconsistent, resulting in uneven stress on the steel wire ropes. Consequently, the workpieces become eccentric and difficult to balance during the lifting process, which can easily lead to tilting, swaying, or even falling. This not only results in poor lifting stability and balance but also low operational safety and potential safety hazards. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies, the present invention provides a lifting device and lifting system, which aims to solve the technical problems of poor stability and low operational safety when using wire rope to lift large workpieces.

[0004] To achieve the above objectives, the present invention provides a lifting device, wherein the lifting device includes:

[0005] Lifting frame;

[0006] The first lifting device includes a first pulley block, a first lifting rope, and a first boom for lifting the first end of the workpiece. The first pulley block is mounted on the lifting frame, and the first lifting rope is wound around the first pulley block and used to lift the first boom.

[0007] The second lifting device includes a second pulley block, a second lifting rope, and a second boom for lifting the second end of the workpiece. The second pulley block is mounted on the lifting frame, and the second lifting rope is wound around the second pulley block and used to lift the second boom.

[0008] The balance adjustment device includes a balance frame movably disposed between a first pulley block and a second pulley block, and a moving drive component disposed on a lifting frame. The moving drive component is used to drive the balance frame to move, and a first lifting rope and a second lifting rope are respectively connected to the balance frame.

[0009] In this embodiment of the invention, the balance adjustment device further includes a first force-measuring pin and a second force-measuring pin spaced apart on the balance frame, and the first hoisting rope and the second hoisting rope are respectively connected to the balance frame one-to-one through the first force-measuring pin and the second force-measuring pin.

[0010] In an embodiment of the invention, the balancing frame includes a frame body and mounting wheels disposed on the frame body. The frame body is movably disposed on the lifting frame and connected to a moving drive component. At least one of the first lifting rope and the second lifting rope is connected to the mounting wheels.

[0011] In this embodiment of the invention, the frame body includes two vertically spaced and connected mounting plates. The mounting plates are movably mounted on the lifting frame and connected to the moving drive component. Mounting wheels are located between the two mounting plates.

[0012] In this embodiment of the invention, there are two mounting wheels, which are laterally spaced between two mounting plates. The number of first lifting devices is the same as the number of mounting wheels and they are arranged in a one-to-one correspondence.

[0013] In this embodiment of the invention, the balance frame further includes a mounting column, which is located between two mounting wheels and connected to two mounting plates at its upper and lower ends, respectively. A second hoisting rope is connected to the mounting column.

[0014] In this embodiment of the invention, a moving channel is formed between the first pulley group and the second pulley group of the lifting frame, and rollers that roll in contact with the side wall of the moving channel are provided on the balancing frame.

[0015] In this embodiment of the invention, the lifting equipment further includes a spinlocking device, which includes a mounting base, a spinlocking mechanism, and a position detection component. The mounting base is used to be mounted on a first boom or a second boom. The spinlocking mechanism and the position detection component are both mounted on the mounting base. The position detection component is used to control the spinlocking mechanism to rotate when it detects that the spinlocking mechanism has entered the workpiece locking hole, so as to lock the workpiece.

[0016] In this embodiment of the invention, the position detection component includes a mounting sleeve, a lifting column, and a position switch. The mounting sleeve is mounted on a mounting base. The lifting column is vertically inserted into the mounting sleeve, with its lower end extending out and used to abut against the workpiece. The position switch is located on the lifting path of the lifting column and is used to control the rotary locking mechanism to rotate when the lifting column is sensed to have reached a preset position.

[0017] In this embodiment of the invention, the position detection component further includes an elastic element, which is disposed inside the mounting sleeve, and the two ends of the elastic element abut against the top wall of the mounting sleeve and the lifting column, respectively.

[0018] In this embodiment of the invention, the lifting frame includes a lifting frame and a limiting plate disposed at the lower end of the lifting frame. The first pulley block, the second pulley block and the balance adjustment device are all disposed on the lifting frame. The limiting plate forms a lifting port for the first boom or the second boom to pass through. The lifting equipment also includes a buffer assembly disposed on the limiting plate and used to apply force to the first boom or the second boom.

[0019] In this embodiment of the invention, the buffer assembly includes a connecting plate, a limiting spring, and a buffer block. The connecting plate is disposed on the limiting plate, and the two ends of the limiting spring are respectively connected to the connecting plate and the buffer block. The buffer block is used to abut against the first boom or the second boom.

[0020] And / or, the lifting frame also includes a guide assembly, which includes a slider disposed on the side of the lifting frame and a guide wheel disposed on the slider.

[0021] In this embodiment of the invention, the first pulley group includes a first fixed pulley and a first movable pulley. The first fixed pulley is mounted on the lifting frame. The first boom and the first movable pulley are movably hinged through a third force-measuring pin. The first lifting rope is wound around the first fixed pulley and the first movable pulley.

[0022] The second pulley block includes a second fixed pulley and a second movable pulley. The second fixed pulley is mounted on the lifting frame. The second boom and the second movable pulley are movably hinged through a fourth force-measuring pin. The second lifting rope is wound around the second fixed pulley and the second movable pulley.

[0023] To achieve the above objectives, the present invention also provides a lifting system, wherein the lifting system includes a lifting rope and a lifting device according to the above description, and the lifting rope is connected to a lifting frame.

[0024] Through the above technical solutions, the lifting equipment and lifting system provided in the embodiments of the present invention have the following beneficial effects:

[0025] In the technical solution of this invention, when the lifting equipment is lifting a workpiece, the lifting frame drives the first boom and the second boom to descend to a position close to the workpiece, so that the first boom and the second boom are respectively connected to the lifting points at the first end and the second end of the workpiece. The lifting frame is then raised to lift the workpiece through the first boom and the second boom, thus realizing the lifting of the workpiece. When the lifting weight of the first boom and the second boom is unbalanced, the moving drive component can drive the balance frame to move within the lifting frame, so that the balance frame drives the first boom and the second boom to rise and fall through the first lifting rope and the second lifting rope, respectively. This allows the relative height of the first boom and the second boom to be adjusted according to the shape of the workpiece and the position of the workpiece lifting point, so that the first boom and the second boom are subjected to uniform force, and the workpiece maintains a stable center of gravity during the lifting process. This greatly improves the stability and balance of the workpiece lifting, effectively reduces the workpiece swaying during lifting, and improves the safety of the operation.

[0026] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0027] The accompanying drawings are provided to illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0028] Figure 1 This is a schematic diagram of the lifting equipment according to an embodiment of the present invention from one perspective;

[0029] Figure 2 yes Figure 1 Enlarged view of region A in the middle;

[0030] Figure 3 This is a structural schematic diagram of a lifting device according to an embodiment of the present invention from another perspective;

[0031] Figure 4 This is a partial structural schematic diagram of a lifting device according to an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of a first lifting device, a second lifting device, and a balance adjustment device in a lifting device according to an embodiment of the present invention from one perspective.

[0033] Figure 6 This is a structural schematic diagram of the first lifting device, the second lifting device, and the balance adjustment device in a lifting device according to an embodiment of the present invention, viewed from another perspective.

[0034] Figure 7 This is a structural schematic diagram of the first lifting device, the second lifting device, and the balance adjustment device in a lifting device according to an embodiment of the present invention, viewed from another angle.

[0035] Figure 8 This is a schematic diagram of the structure of a first lifting device, a second lifting device, and a buffer assembly in a lifting device according to an embodiment of the present invention.

[0036] Figure 9 This is a schematic diagram of the twistlock device in a lifting device according to an embodiment of the present invention from one perspective;

[0037] Figure 10 This is a structural schematic diagram of a twistlock device in a lifting device according to an embodiment of the present invention from another perspective.

[0038] Explanation of reference numerals in the attached figures

[0039] 10 lifting frames, 411 frame bodies

[0040] 11 Moving Channel 4111 Mounting Plate

[0041] 12 lifting frames, 412 mounting wheels

[0042] 13 Limiting plate 413 Mounting column

[0043] 131 Lifting port 414 Rollers

[0044] 14 Slider 42 Moving drive

[0045] 15 Guide wheel 43 First force measuring pin

[0046] 16 Lifting pulleys 44 Second force-measuring pin

[0047] 20 First lifting device 50 Twisting lock device

[0048] 21 First pulley block 51 Mounting base

[0049] 211 First fixed pulley 52 Rotary locking mechanism

[0050] 212 First moving pulley 521 Rotary lock

[0051] 22 First lifting rope 522 Rotary drive component

[0052] 23 First boom 523 mounting frame

[0053] 24 Third force measuring pin 524 Limit nut

[0054] 25 First fall arresting rope 53 Position detection component

[0055] 30 Second lifting device 531 Installation sleeve

[0056] 31 Second pulley block 532 Lifting column

[0057] 311 Second fixed pulley 533 Position switch

[0058] 312 Second moving pulley 534 Elastic element

[0059] 32 Second lifting rope 534a return spring

[0060] 33 Second boom 60 Buffer assembly

[0061] 34 Fourth force measuring pin 61 Connecting plate

[0062] 35 Second fall arresting rope 62 Limiting spring

[0063] 40 Balance adjustment device 63 Buffer block

[0064] 41 Balance frame 200 workpieces Detailed Implementation

[0065] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0066] The lifting device of the present invention will now be described with reference to the accompanying drawings.

[0067] like Figures 1 to 6As shown, the present invention provides a lifting device, which includes a lifting frame 10, a first lifting device 20, a second lifting device 30, and a balance adjustment device 40. The first lifting device 20 includes a first pulley block 21, a first lifting rope 22, and a first boom 23 for lifting the first end of a workpiece 200. The first pulley block 21 is mounted on the lifting frame 10, and the first lifting rope 22 is wound around the first pulley block 21 and used to lift the first boom 23. The second lifting device 30 includes a second pulley block 31, a second lifting rope 22, and a second lifting device 40. The second lifting rope 32 and the second lifting arm 33 for lifting the second end of the workpiece 200 are included. The second pulley block 31 is provided on the lifting frame 10. The second lifting rope 32 is wound around the second pulley block 31 and is used to lift the second lifting arm 33. The balance adjustment device 40 includes a balance frame 41 movably provided between the first pulley block 21 and the second pulley block 31 and a moving drive member 42 provided on the lifting frame 10. The moving drive member 42 is used to drive the balance frame 41 to move. The first lifting rope 22 and the second lifting rope 32 are respectively connected to the balance frame 41.

[0068] Specifically, the lifting frame 10 is used to connect with the lifting rope of external lifting machinery so that the lifting rope can lift the workpiece 200 through the lifting equipment. The balance frame 41 is installed inside the lifting frame 10. The moving drive component 42 is drivenly connected to the balance frame 41 and can drive the balance frame 41 to move inside the lifting frame 10. The first lifting device 20 and the second lifting device 30 are respectively located at both ends of the balance frame 41. The first pulley block 21 and the second pulley block 31 are both connected to the lifting frame 10. The first lifting rope 22 is connected to the balance frame 41 and is wound around the first pulley block 21 to lift the first boom 23 located below the first pulley block 21. The second lifting rope 32 is connected to the balance frame 41 and is wound around the second pulley block 31 to lift the second boom 33 located below the second pulley block 31.

[0069] When hoisting workpiece 200, the lifting frame 10 lowers the first boom 23 and the second boom 33 to a position close to workpiece 200, so that the first boom 23 and the second boom 33 are respectively connected to the lifting points at the first and second ends of workpiece 200. The lifting frame 10 then lifts the workpiece 200 by means of the first boom 23 and the second boom 33, thus achieving the hoisting of workpiece 200. When the lifting weight of the first boom 23 and the second boom 33 is unbalanced, the moving drive component 42 can drive the balancing frame 41 to move back and forth within the lifting frame 10. The balance frame 41 drives the first boom 23 and the second boom 33 to rise and fall respectively through the first lifting rope 22 and the second lifting rope 32. This allows the relative height of the first boom 23 and the second boom 33 to be adjusted according to the shape of the workpiece 200 and the position of the lifting point of the workpiece 200. This ensures that the first boom 23 and the second boom 33 are subjected to uniform force, and that the workpiece 200 maintains a stable center of gravity during the lifting process. This significantly improves the stability and balance of the workpiece 200 during lifting, effectively reduces the swaying of the workpiece 200 during lifting, and improves the safety of the operation.

[0070] In this embodiment of the invention, the balance adjustment device 40 further includes a first force-measuring pin 43 and a second force-measuring pin 44 spaced apart on the balance frame 41, and the first lifting rope 22 and the second lifting rope 32 are respectively connected to the balance frame 41 in a one-to-one correspondence through the first force-measuring pin 43 and the second force-measuring pin 44.

[0071] like Figures 1 to 7 As shown, a first force-measuring pin 43 is provided at the connection between the first lifting rope 22 and the balance frame 41, and a second force-measuring pin 44 is provided at the connection between the second lifting rope 32 and the balance frame 41. The first force-measuring pin 43 and the second force-measuring pin 44 are respectively used to detect the force on the first lifting rope 22 and the second lifting rope 32, so as to adjust the moving position of the balance frame 41 between the first pulley group 21 and the second pulley group 31 according to the force on the first lifting rope 22 and the second lifting rope 32, thereby making the force on the first lifting rope 22 and the second lifting rope 32 balanced. In this embodiment, the force on the first lifting rope 22 and the second lifting rope 32 is detected in real time by the first force-measuring pin 43 and the second force-measuring pin 44. The relative height of the first boom 23 and the second boom 33 can be quickly and flexibly adjusted according to the magnitude of the force, thereby achieving balanced hoisting of the workpiece 200. This not only makes hoisting convenient and quick, improving hoisting efficiency, but also further enhances hoisting stability. In addition, both the first force-measuring pin 43 and the second force-measuring pin 44 can adopt the pin-type force sensor in the prior art. The first hoisting rope 22 is connected to the balance frame 41 through the first force-measuring pin 43, and the second hoisting rope 32 is connected to the balance frame 41 through the second force-measuring pin 44, so that the first force-measuring pin 43 and the second force-measuring pin 44 can accurately detect the magnitude of the force on the first hoisting rope 22 and the second hoisting rope 32. The structural design is reasonable.

[0072] In this embodiment of the invention, the balancing frame 41 includes a frame body 411 and a mounting wheel 412 disposed on the frame body 411. The frame body 411 is movably disposed on the lifting frame 10 and connected to the moving drive member 42. At least one of the first lifting rope 22 and the second lifting rope 32 is connected to the mounting wheel 412.

[0073] like Figures 1 to 7 As shown, the movable drive component 42 is mounted on the lifting frame 10 and drivenly connected to the frame body 411, enabling the movable drive component 42 to drive the frame body 411 to reciprocate within the lifting frame 10. The mounting wheel 412 is mounted on the frame body 411. In one embodiment of the invention, the mounting wheel 412 is rotatably connected to the frame body 411 via a first force-measuring pin 43. A first lifting rope 22 is wound around the mounting wheel 412, and a second lifting rope 32 is connected to the frame body 411 via a second force-measuring pin 44. When the movable drive component 42 drives the frame body 411 to move, the mounting wheel 412 drives the first boom 23 to rise and fall via the first lifting rope 22, and the frame body 411 drives the second boom 33 to rise and fall via the second lifting rope 32, thereby balancing the forces on the first boom 23 and the second boom 33, improving lifting stability. Furthermore, the first force-measuring pin 43 can be driven to reciprocate within the lifting frame 10. The wheel 412 detects the force on the first lifting rope 22, and the second force-measuring pin 44 detects the force on the second lifting rope 32, so as to adjust the moving position of the frame body 411 according to the detection results, making the adjustment flexible and convenient. In another embodiment of the present invention, the mounting wheel 412 is rotatably connected to the frame body 411 through the second force-measuring pin 44, and the second lifting rope 32 is wound around the mounting wheel 412, so that the second force-measuring pin 44 detects the force on the second lifting rope 32 through the mounting wheel 412, and the mounting wheel 412 drives the second boom 33 to rise and fall through the second lifting rope 32. In yet another embodiment of the present invention, the first force-measuring pin 43 and the second force-measuring pin 44 are both provided on the mounting wheel 412, and the first force-measuring pin 43 and the second force-measuring pin 44 are respectively used to detect the force on the first lifting rope 22 and the second lifting rope 32.

[0074] In this embodiment of the invention, the frame body 411 includes two vertically spaced and connected mounting plates 4111. The mounting plates 4111 are movably mounted on the lifting frame 10 and connected to the moving drive component 42. Mounting wheels 412 are located between the two mounting plates 4111. Figures 1 to 7 As shown, the moving drive component 42 can be a hydraulic cylinder, electric cylinder, or pneumatic cylinder, which can drive the two mounting plates 4111 to move back and forth within the lifting frame 10. The cylinder body of the moving drive component 42 is connected to the lifting frame 10, and the output shaft of the moving drive component 42 is connected between the two mounting plates 4111 to drive the two mounting plates 4111 to move. This allows the two mounting plates 4111 to drive the mounting wheels 412 to move, thereby adjusting the force balance between the first boom 23 and the second boom 33 and improving the lifting balance.

[0075] In this embodiment of the invention, there are two mounting wheels 412, which are laterally spaced between two mounting plates 4111. The number of first lifting devices 20 is the same as the number of mounting wheels 412, and they are arranged in a one-to-one correspondence. Figures 1 to 7 As shown, two mounting plates 4111 are vertically spaced apart, and two mounting wheels 412 are spaced apart between the two mounting plates 4111 in the left-right direction. There are two first lifting devices 20, which are respectively set to correspond to the two mounting wheels 412 and are both located at the rear end of the lifting frame 10. The second lifting device 30 is located at the front end of the lifting frame 10. The two first booms 23 are used to connect to the first end of the workpiece 200, and the second boom 33 is used to connect to the second end of the workpiece 200, so that the second boom 33 and the two first booms 23 cooperate to lift the workpiece 200, which further improves the lifting stability of the workpiece 200.

[0076] In this embodiment of the invention, the balance frame 41 further includes a mounting column 413, which is located between two mounting wheels 412 and its upper and lower ends are respectively connected to two mounting plates 4111. A second force-measuring pin 44 is disposed on the mounting column 413, and a second lifting rope 32 is connected to the mounting column 413. Figures 1 to 7 As shown, at least one mounting column 413 is provided between the two mounting wheels 412. The two mounting wheels 412 are respectively connected to the frame body 411 through two first force-measuring pins 43. Two first lifting ropes 22 are respectively wound around the two mounting wheels 412 to correspondingly lift the two first booms 23. The mounting column 413 is connected to the frame body 411 through a second force-measuring pin 44. A second lifting rope 32 is wound around the mounting column 413 to correspondingly lift the second boom 33. When the moving drive component 42 drives the two mounting plates 4111 to move, each mounting wheel 412 drives the first boom 23 to rise and fall through its corresponding first lifting rope 22. The mounting column 413 drives the second boom 33 to rise and fall through the second lifting rope 32. The height of the first boom 23 and the second boom 33 is adjusted according to the detection results of the first force-measuring pins 43 and the second force-measuring pins 44, so as to balance the forces on the first boom 23 and the second boom 33, keep the center of gravity of the workpiece 200 stable, and further improve the lifting safety.

[0077] In this embodiment of the invention, the lifting frame 10 forms a moving channel 11 between the first pulley block 21 and the second pulley block 31, and the balancing frame 41 is provided with rollers 414 that roll in contact with the side wall of the moving channel 11. Figures 4 to 6As shown, a moving channel 11 extending in the front-to-back direction is formed on the lifting frame 10, and the moving channel 11 is located between the first pulley group 21 and the second pulley group 31. A roller 414 is provided on the upper mounting plate 4111. The roller 414 rolls in contact with the side wall of the moving channel 11 so that when the moving drive member 42 drives the two mounting plates 4111 to move, the mounting plates 4111 drive the roller 414 to roll back and forth on the side wall of the moving channel 11 along the extension direction of the moving channel 11. The roller 414 guides the movement of the mounting plates 4111, improves the smoothness of the movement of the mounting plates 4111, and facilitates the adjustment of the height of the first boom 23 and the second boom 33.

[0078] In this embodiment of the invention, the lifting equipment further includes a twist-lock device 50, which includes a mounting base 51, a twist-lock mechanism 52, and a position detection component 53. The mounting base 51 is used to be mounted on the first boom 23 or the second boom 33. The twist-lock mechanism 52 and the position detection component 53 are both mounted on the mounting base 51. The position detection component 53 is used to control the twist-lock mechanism 52 to rotate when it is detected that the twist-lock mechanism 52 has entered the locking hole of the workpiece 200, so as to lock the workpiece 200.

[0079] like Figure 9 and Figure 10 As shown, the lower ends of the first boom 23 and the second boom 33 are each equipped with a locking device 50. The locking device 50 includes a mounting base 51 for connecting to the first boom 23 or the second boom 33, a locking mechanism 52 for locking the workpiece 200, and a position detection component 53 for detecting the position of the locking mechanism 52. The workpiece 200 has a locking hole for the locking mechanism 52 to extend into. When lifting the workpiece 200, the lifting frame 10 lowers the first boom 23 and the second boom 33 to a position close to the workpiece 200 so that the locking mechanism 52 extends into the locking hole of the workpiece 200. The position detection component 53 detects the locking mechanism 52 extending into the workpiece 200. Once inside the lock hole, the position detection component 53 controls the rotation of the rotary locking mechanism 52 to lock the workpiece 200, thereby enabling the first boom 23 and the second boom 33 to stably lift the workpiece 200, effectively preventing the workpiece 200 from falling and further improving the stability and safety of the lifting operation. Furthermore, when the lifting space is narrow, it is difficult for personnel to directly contact the workpiece 200. By detecting the position of the rotary locking mechanism 52 through the position detection component 53 and controlling the rotary locking mechanism 52 to lock the workpiece 200 when it extends into place, the workpiece 200 can be stably lifted, which has the advantages of convenient and quick lifting and high lifting efficiency.

[0080] In this embodiment of the invention, the position detection component 53 includes a mounting sleeve 531, a lifting column 532, and a position switch 533. The mounting sleeve 531 is mounted on the mounting base 51. The lifting column 532 is vertically inserted into the mounting sleeve 531, with its lower end extending out and used to abut against the workpiece 200. The position switch 533 is located on the lifting path of the lifting column 532 and is used to control the rotary locking mechanism 52 to rotate when the lifting column 532 is sensed to have reached a preset position.

[0081] like Figure 9 and Figure 10 As shown, the mounting sleeve 531 is mounted on the mounting base 51. The lifting column 532 passes through the mounting sleeve 531 and extends downward relative to the mounting sleeve 531 to penetrate the mounting base 51. When the lifting frame 10 drives the first boom 23 and the second boom 33 to descend to a position close to the workpiece 200, the lower end of the lifting column 532 abuts against the workpiece 200, so that the workpiece 200 pushes the lifting column 532 to rise relative to the mounting sleeve 531. After the locking mechanism 52 extends into the locking hole of the workpiece 200, the workpiece 200 pushes the lifting column 532 to rise to the preset position. The position switch 533 detects that the lifting column 532 has reached the preset position and controls the locking mechanism 52 to rotate according to the detection result, so that the locking mechanism 52 locks the workpiece 200, realizing the stable hoisting of the workpiece 200. Furthermore, the position switch 533 can be a proximity switch in the prior art, which has the advantages of fast response speed and long service life.

[0082] In this embodiment of the invention, the position detection component 53 further includes an elastic element 534, which is disposed within the mounting sleeve 531, and both ends of the elastic element 534 abut against the top wall of the mounting sleeve 531 and the lifting column 532, respectively. Figure 9 and Figure 10 As shown, an elastic element 534 is also provided inside the mounting sleeve 531. The elastic element 534 is located between the lifting column 532 and the top wall of the mounting sleeve 531. When the lifting column 532 rises relative to the mounting sleeve 531, the lifting column 532 cooperates with the top wall of the mounting sleeve 531 to compress the elastic element 534. It can be understood that after the hoisting is completed, the position switch 533 controls the twist lock mechanism 52 to rotate in the opposite direction to unlock the workpiece 200. The first boom 23 and the second boom 33 drive the twist lock mechanism 52 to disengage from the lock hole of the workpiece 200. The elastic restoring force of the elastic element 534 acts on the lifting column 532 to make the lifting column 532 extend downward and reset, which is convenient for the next hoisting operation.

[0083] In embodiments of the present invention, such as Figure 9 and Figure 10As shown, the elastic element 534 is a return spring 534a, which is sleeved on the lifting column 532. The lower end of the return spring 534a abuts against the lifting column 532, and the upper end of the return spring 534a abuts against the top wall of the mounting sleeve 531. The lifting column 532 can cooperate with the top wall of the mounting sleeve 531 to compress the return spring 534a. After the rotary locking mechanism 52 disengages from the locking hole of the workpiece 200, the elastic restoring force of the return spring 534a pushes the lifting column 532 down relative to the mounting sleeve 531, thereby realizing the automatic reset of the lifting column 532.

[0084] In this embodiment of the invention, the rotary lock mechanism 52 includes a rotary lock 521 and a rotary drive member 522. The lower end of the rotary lock 521 extends out of the mounting base 51. The rotary drive member 522 is electrically connected to a position switch 533 and is used to drive the rotary lock 521 to rotate. Figure 9 and Figure 10 As shown, the lower end of the rotary lock 521 extends to the mounting base 51, and the rotary drive 522 is driven to the upper end of the rotary lock 521. When the first boom 23 and the second boom 33 drive the rotary lock 521 down to a position close to the locking hole of the workpiece 200, the rotary lock 521 can extend into the locking hole of the workpiece 200. After the position switch 533 detects that the rotary lock 521 has extended into the position, the position switch 533 can control the rotary drive 522 to drive the rotary lock 521 to rotate so that the rotary lock 521 is flush with the wall of the locking hole. The rotating drive 522 abuts and engages with the locking hole, thereby locking the workpiece 200 to the first boom 23 and the second boom 33, achieving stable hoisting of the workpiece 200. Furthermore, the rotating drive 522 is equipped with a lifting power-off protection. During the process of locking the workpiece 200 with the rotating lock 521 and hoisting the workpiece 200, the rotating drive 522 cannot drive the rotating lock 521 to rotate. The rotating drive 522 can only drive the rotating lock 521 to rotate when the first boom 23 and the second boom 33 are unloaded, which further improves the hoisting safety.

[0085] In embodiments of the present invention, such as Figure 9 and Figure 10 As shown, the rotary lock mechanism 52 also includes a mounting bracket 523 on the mounting base 51 and a limiting nut 524 sleeved on the rotary lock 521. The rotary drive component 522 can be a cylinder or motor as in the prior art. The rotary drive component 522 is mounted on the mounting bracket 523 and drivenly connected to the rotary lock 521. The mounting bracket 523 facilitates the installation of the rotary drive component 522. The limiting nut 524 is located on the lower side of the mounting bracket 523 and is used to abut against the mounting base 51 to prevent the rotary lock 521 from falling off, thereby improving structural stability.

[0086] In this embodiment of the invention, the lifting frame 10 includes a lifting frame 12 and a limiting plate 13 disposed at the lower end of the lifting frame 12. The first pulley block 21, the second pulley block 31 and the balance adjustment device 40 are all disposed on the lifting frame 12. The limiting plate 13 forms a lifting port 131 through which the first boom 23 or the second boom 33 passes. The lifting equipment also includes a buffer assembly 60 disposed on the limiting plate 13 and used to apply force to the first boom 23 or the second boom 33.

[0087] like Figure 8 As shown, the lower end of the lifting frame 12 is connected to a limit plate 13 at the position corresponding to the second boom 33 and the two first booms 23. Each limit plate 13 has at least one lifting port 131, which is used for the first boom 23 or the second boom 33 to pass through to limit the first boom 23 and the second boom 33, thereby reducing the sway amplitude of the first boom 23 and the second boom 33 and improving the lifting stability. In addition, a buffer component 60 is provided on the lower side of each limit plate 13 at the position corresponding to the first boom 23 or the second boom 33. The buffer component 60 can apply force to the first boom 23 or the second boom 33 to further reduce sway and improve the lifting safety.

[0088] In this embodiment of the invention, the buffer assembly 60 includes a connecting plate 61, a limiting spring 62, and a buffer block 63. The connecting plate 61 is disposed on the limiting plate 13. The two ends of the limiting spring 62 are respectively connected to the connecting plate 61 and the buffer block 63. The buffer block 63 is used to abut against the first boom 23 or the second boom 33. Figure 8 As shown, the connecting plate 61 is connected to the lower side of the limiting plate 13 and is perpendicular to the limiting plate 13. The limiting spring 62 is connected to the connecting plate 61 and extends laterally. A buffer block 63 is connected to one end of the limiting spring 62 facing the first boom 23 or the second boom 33. When the first boom 23 or the second boom 33 sways, the buffer block 63 can abut against the first boom 23 or the second boom 33 and cooperate with the connecting plate 61 to compress the limiting spring 62. This allows the elastic restoring force of the limiting spring 62 to act on the buffer block 63 and push the first boom 23 and the second boom 33 in the opposite direction through the buffer block 63, thereby reducing the sway amplitude of the first boom 23 and the second boom 33 and further improving the lifting stability. In addition, the buffer assembly 60 also includes a limiting post passing through the connecting plate 61. The limiting post extends laterally and can move relative to the connecting plate 61. The buffer block 63 is connected to the limiting post, and the limiting spring 62 is sleeved on the limiting post.

[0089] In this embodiment of the invention, the lifting frame 10 further includes a guide assembly, which includes a slider 14 disposed on the side of the lifting frame 12 and a guide wheel 15 disposed on the slider 14. Figures 1 to 3As shown, the slider 14 is installed on one side of the lifting frame 12, and the slider 14 is provided with a guide wheel 15 for rolling contact with the external guide rail. When the lifting rope of the lifting machinery drives the lifting frame 12 to rise and fall, the guide wheel 15 and the slider 14 can guide the lifting frame 12 to rise and fall, thereby improving the smoothness of lifting. In addition, the upper side of the lifting frame 12 is provided with a lifting pulley 16, and the lifting rope can be wound around the lifting pulley 16 so as to drive the first boom 23, the second boom 33 and the workpiece 200 to rise and fall through the lifting frame 12, thereby improving the convenience of lifting.

[0090] In this embodiment of the invention, the first pulley group 21 includes a first fixed pulley 211 and a first movable pulley 212. The first fixed pulley 211 is mounted on the lifting frame 10. The first boom 23 is movably hinged to the first movable pulley 212 via a third force-measuring pin 24. The first lifting rope 22 is wound around the first fixed pulley 211 and the first movable pulley 212. The second pulley group 31 includes a second fixed pulley 311 and a second movable pulley 312. The second fixed pulley 311 is mounted on the lifting frame 10. The second boom 33 is movably hinged to the second movable pulley 312 via a fourth force-measuring pin 34. The second lifting rope 32 is wound around the second fixed pulley 311 and the second movable pulley 312.

[0091] like Figures 4 to 6As shown, the first fixed pulley 211 is connected to the lifting frame 12, the first movable pulley 212 is located below the first fixed pulley 211, one end of the first lifting rope 22 is connected to the mounting wheel 412, the first lifting rope 22 is wound around the first fixed pulley 211 and the first movable pulley 212 in sequence, and the other end of the first lifting rope 22 is connected to the first fixed pulley 211. The first boom 23 is movably hinged to the first movable pulley 212 through the third force-measuring pin 24, so that the mounting wheel 412 can be connected to the first fixed pulley 212. The first lifting rope 22 and the first movable pulley 212 drive the first boom 23 to rise and fall; the second fixed pulley 311 is connected to the lifting frame 12, the second movable pulley 312 is located below the second fixed pulley 311, one end of the second lifting rope 32 is connected to the mounting column 413, the second lifting rope 32 is wound around the second fixed pulley 311 and the second movable pulley 312 in sequence, and the other end of the second lifting rope 32 is connected to the second fixed pulley 311. The second boom 33 is flexibly lifted by the fourth force-measuring pin 34. The first boom 23 is hinged to the second movable pulley 312, allowing the mounting column 413 to lift the second boom 33 via the second lifting rope 32 and the second movable pulley 312. The workpiece 200 is locked between the first boom 23 and the second boom 33 by the locking mechanism 52, achieving stable lifting of the workpiece 200. This provides advantages of good lifting stability and high safety. Furthermore, the third force-measuring pin 24 and the fourth force-measuring pin 34 can respectively detect the force on the first boom 23 and the second boom 33, allowing for further adjustment of the frame body 411's position between the first fixed pulley 211 and the second fixed pulley 311 based on the force conditions. This, in turn, adjusts the relative height of the first boom 23 and the second boom 33, ensuring balanced force distribution and improving lifting stability. Additionally, both the third force-measuring pin 24 and the fourth force-measuring pin 34 can utilize existing pin-type force sensors, offering advantages of accurate detection and ease of installation.

[0092] In embodiments of the present invention, such as Figures 4 to 6 As shown, a first anti-fall rope 25 is connected between the first fixed pulley 211 and the first movable pulley 212, and a second anti-fall rope 35 is connected between the second fixed pulley 311 and the second movable pulley 312. When hoisting the workpiece 200, the first anti-fall rope 25 and the second anti-fall rope 35 are always in a flexible state. When the first hoisting rope 22 or the second hoisting rope 32 breaks, the first anti-fall rope 25 and the second anti-fall rope 35 can be used to suspend the first movable pulley 212 and the second movable pulley 312 respectively, effectively preventing the first boom 23 and the second boom 33 from falling, and further improving the hoisting safety.

[0093] Furthermore, the present invention also provides a lifting system, wherein the lifting system includes a lifting rope and a lifting device according to the above description, the lifting rope being connected to the lifting frame 10, specifically, as shown in... Figures 1 to 3As shown, the lifting frame 10 is equipped with a lifting pulley 16, and the lifting rope can be wound around the lifting pulley 16 to lift the lifting equipment, thereby stabilizing the workpiece 200 through the lifting equipment. It has the advantages of good lifting balance and high safety. Since the lifting system adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described in detail here.

[0094] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0095] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0096] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0097] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A lifting device, characterized in that, The lifting equipment includes: Lifting frame (10); The first lifting device (20) includes a first pulley block (21), a first lifting rope (22), and a first boom (23) for lifting the first end of the workpiece (200). The first pulley block (21) is mounted on the lifting frame (10), and the first lifting rope (22) is wound around the first pulley block (21) and used to lift the first boom (23). The second lifting device (30) includes a second pulley block (31), a second lifting rope (32), and a second boom (33) for lifting the second end of the workpiece (200). The second pulley block (31) is mounted on the lifting frame (10), and the second lifting rope (32) is wound around the second pulley block (31) and used to lift the second boom (33). The balance adjustment device (40) includes a balance frame (41) movably disposed between the first pulley block (21) and the second pulley block (31) and a moving drive (42) disposed on the lifting frame (10). The moving drive (42) is used to drive the balance frame (41) to move. The first lifting rope (22) and the second lifting rope (32) are respectively connected to the balance frame (41).

2. The lifting equipment according to claim 1, characterized in that, The balance adjustment device (40) further includes a first force-measuring pin (43) and a second force-measuring pin (44) spaced apart on the balance frame (41). The first hoisting rope (22) and the second hoisting rope (32) are respectively connected to the balance frame (41) through the first force-measuring pin (43) and the second force-measuring pin (44).

3. The lifting equipment according to claim 1, characterized in that, The balancing frame (41) includes a frame body (411) and mounting wheels (412) disposed on the frame body (411). The frame body (411) is movably disposed on the lifting frame (10) and connected to the moving drive (42). At least one of the first lifting rope (22) and the second lifting rope (32) is connected to the mounting wheels (412).

4. The lifting equipment according to claim 3, characterized in that, The frame body (411) includes two vertically spaced and connected mounting plates (4111), which are movably mounted on the lifting frame (10) and connected to the moving drive component (42). The mounting wheel (412) is located between the two mounting plates (4111).

5. The lifting equipment according to claim 4, characterized in that, The number of the mounting wheels (412) is two, and the two mounting wheels (412) are laterally spaced between the two mounting plates (4111). The number of the first lifting devices (20) is the same as the number of the mounting wheels (412) and they are arranged in a one-to-one correspondence.

6. The lifting equipment according to claim 5, characterized in that, The balance frame (41) also includes a mounting column (413), which is located between the two mounting wheels (412) and is connected to the two mounting plates (4111) at its upper and lower ends respectively. The second hoisting rope (32) is connected to the mounting column (413).

7. The lifting equipment according to any one of claims 1 to 6, characterized in that, The lifting frame (10) forms a moving channel (11) between the first pulley group (21) and the second pulley group (31), and the balance frame (41) is provided with rollers (414) that roll in contact with the side wall of the moving channel (11).

8. The lifting equipment according to any one of claims 1 to 6, characterized in that, The lifting equipment also includes a twist-lock device (50), which includes a mounting base (51), a twist-lock mechanism (52), and a position detection component (53). The mounting base (51) is used to be mounted on the first boom (23) or the second boom (33). The twist-lock mechanism (52) and the position detection component (53) are both mounted on the mounting base (51). The position detection component (53) is used to control the twist-lock mechanism (52) to rotate when it is detected that the twist-lock mechanism (52) has entered the locking hole of the workpiece (200) so as to lock the workpiece (200).

9. The lifting equipment according to claim 8, characterized in that, The position detection component (53) includes a mounting sleeve (531), a lifting column (532), and a position switch (533). The mounting sleeve (531) is mounted on the mounting base (51). The lifting column (532) is vertically inserted into the mounting sleeve (531) and its lower end extends out to abut against the workpiece (200). The position switch (533) is located on the lifting path of the lifting column (532) and is used to control the rotary locking mechanism (52) to rotate when the lifting column (532) is sensed to have reached a preset position.

10. The lifting equipment according to claim 9, characterized in that, The position detection component (53) further includes an elastic element (534), which is disposed inside the mounting sleeve (531), and the two ends of the elastic element (534) abut against the top wall of the mounting sleeve (531) and the lifting column (532), respectively.

11. The lifting equipment according to any one of claims 1 to 6, characterized in that, The lifting frame (10) includes a lifting frame (12) and a limiting plate (13) located at the lower end of the lifting frame (12). The first pulley block (21), the second pulley block (31) and the balance adjustment device (40) are all located on the lifting frame (12). The limiting plate (13) has a lifting port (131) through which the first boom (23) or the second boom (33) passes. The lifting equipment also includes a buffer assembly (60) located on the limiting plate (13) and used to apply force to the first boom (23) or the second boom (33).

12. The lifting equipment according to claim 11, characterized in that, The buffer assembly (60) includes a connecting plate (61), a limiting spring (62), and a buffer block (63). The connecting plate (61) is disposed on the limiting plate (13). The two ends of the limiting spring (62) are respectively connected to the connecting plate (61) and the buffer block (63). The buffer block (63) is used to abut against the first boom (23) or the second boom (33). And / or, the lifting frame (10) further includes a guide assembly, the guide assembly including a slider (14) disposed on the side of the lifting frame (12) and a guide wheel (15) disposed on the slider (14).

13. The lifting equipment according to any one of claims 1 to 6, characterized in that, The first pulley block (21) includes a first fixed pulley (211) and a first movable pulley (212). The first fixed pulley (211) is mounted on the lifting frame (10). The first boom (23) and the first movable pulley (212) are movably hinged through a third force-measuring pin (24). The first lifting rope (22) is wound around the first fixed pulley (211) and the first movable pulley (212). The second pulley block (31) includes a second fixed pulley (311) and a second movable pulley (312). The second fixed pulley (311) is mounted on the lifting frame (10). The second boom (33) and the second movable pulley (312) are movably hinged through a fourth force-measuring pin (34). The second lifting rope (32) is wound around the second fixed pulley (311) and the second movable pulley (312).

14. A lifting system, characterized in that, The lifting system includes a lifting rope and a lifting device according to any one of claims 1 to 13, wherein the lifting rope is connected to the lifting frame (10).

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