A lifting device and method for preventing cargo from swaying

Abstract

The present invention discloses a lifting device and method for preventing cargo from swaying, and relates to the field of lifting technology; in order to solve the swing problem; specifically comprises a mounting seat, the top of the mounting seat is provided with a winch, the outer wall of the winch is matched with a rope, the bottom of the mounting seat is provided with a swing sensing portion matched with the rope, and after the rope is matched with the swing sensing portion, a lifting head is fixed at the end of the rope; the winch portion comprises a slide, a motor and a retractable reel, the slide is slidably connected to the inner wall of the mounting seat through a guide slide, and the axial direction of the guide slide is parallel to the direction in which the cargo needs to be moved. The present invention sets a swing sensing portion, an electric telescopic device and other components, so that when the cargo fluctuates in speed during movement or stops suddenly at the destination, the lateral swing of the cargo can be balanced by the lateral movement of the slide, thereby offsetting the lateral swing of the cargo, and gradually consuming the swing energy in the process of reciprocating balance, so that the cargo is stable.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting, and in particular to a lifting device and a method for preventing goods from swaying. Background Art

[0002] Hoisting is a device used to lift heavy objects. It includes structures such as arm-type hoists and gantry-type hoists. According to the number and type of ropes, it is divided into single-rope lifting and multi-rope lifting. In the case of single-rope lifting, there will be speed fluctuations in the process of moving heavy objects, causing the goods to swing, thus reducing safety.

[0003] For example, after searching, the Chinese patent publication number CN211644413U discloses a single-rope winding hoist, including a base, a vertical rotating rod arranged at the center of the upper end surface of the base, one end of the rotating rod is rotatably connected to a lifting rod, a cable drum is arranged on the lifting rod, one side of the cable drum is transmission-connected to a lifting motor, one end of the lifting rod is rotatably connected to a rotating wheel, a rope is wound around the cable drum and the rotating wheel, and a rope hook is arranged at one end of the rope. The hoist is arranged with an angle limiting mechanism, so that the rotating rod can drive the lifting rod to rotate to any suitable angle.

[0004] The above patent has the following shortcomings: when lifting with a single rope, there will be speed fluctuations in the process of moving the heavy object, causing the goods to swing, so the safety is low.

[0005] To this end, the present invention provides a lifting device and method for preventing cargo from swaying. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a lifting device and method for preventing cargo from swaying.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A lifting device for preventing cargo from swaying, comprising a mounting seat,

[0009] The top of the mounting seat is provided with a hoisting part, the outer wall of the hoisting part is matched with a twisted rope, the bottom of the mounting seat is provided with a swing sensing part matched with the twisted rope, and after the twisted rope is matched with the swing sensing part, a hanging head is fixed to the end of the twisted rope;

[0010] The hoisting part includes a slide, a motor and a retractable reel, the slide is slidably connected to the inner wall of the mounting seat through a guide slide bar, and the axial direction of the guide slide bar is parallel to the direction in which the goods need to be moved, a bracket is fixed to the top outer wall of the slide by bolts, the motor is fixed to the outer wall of one side of the bracket by bolts, and the retractable reel is rotatably connected to the inner side of the bracket through a main shaft, and the output end of the motor is connected to the end of the main shaft through a coupling;

[0011] Electric retractors are fixed to both sides of the slide seat by bolts, and the shell part of the electric retractor is fixedly embedded in the inner wall of the mounting seat.

[0012] Preferably: the swing sensing part includes a fixed frame and a swing frame, the fixed frame is fixed to the bottom outer wall of the mounting seat by bolts, the swing frame is rotatably connected to the inner side of the fixed frame by a hinge shaft, the bottom inner side of the swing frame is provided with a guide wheel group 1 for limiting the twisted rope, the top inner side of the fixed frame is provided with a guide wheel group 2 for limiting the twisted rope, the guide wheel group 1 and the guide wheel group 2 are respectively rotatably connected to the swing frame and the fixed frame through a connecting shaft, the outer wall of the hinge shaft is rotatably connected with a transition drum, and the twisted rope is wound around the outer wall of the transition drum.

[0013] Furthermore: the swing sensing part also includes two sets of opposing acceleration gears, speed gears and gear rings, the gear rings are fixed to the side walls of the fixed frame by bolts, the speed gears are rotatably connected to the side walls of the swing frame, and the acceleration gears are rotatably connected to the outer wall of the hinge shaft.

[0014] On the basis of the above-mentioned scheme: the side walls of the swing frame are respectively fixed with a guide seat and a vortex-shaped resistance, the inner wall of the guide seat is provided with a vortex groove corresponding to the position and shape of the vortex-shaped resistance, the inner wall of the acceleration gear is slidably connected with a sliding block, the side wall of the sliding block is slidably connected with an insulating rod, the end of the insulating rod contacts and is electrically conductive to the side wall of the vortex-shaped resistance, and the insulating rod is movably limited and matched with the inner wall of the vortex groove of the guide seat.

[0015] A better solution in the above solution is: a spring is buckled on the end surface of the sliding block, and the other end of the spring is buckled on the outer wall of the insulating rod.

[0016] As a further solution of the present invention: the two groups of the vortex-shaped resistors and the electrode heads are electrically connected to the power supply circuit of the electric expander respectively, and the wiring methods are different.

[0017] At the same time, the retractable reel is composed of a plurality of fan-shaped reel units, which are slidably connected to the radial direction of the main shaft, and variable diameter components for controlling the positions of the fan-shaped reel units are arranged at both ends of the main shaft.

[0018] As a preferred embodiment of the present invention: the variable diameter assembly includes a sliding sleeve, a permanent magnet and an electromagnet, the sleeve is slidably connected to the axial outer wall of the main shaft, the permanent magnet is fixed to the end face of the sleeve by bolts, the electromagnet is fixed to the outer wall of the main shaft by bolts, the outer wall of the sleeve is rotatably connected to a plurality of connecting rods, and the other end of the connecting rod is rotatably connected to the inner wall of the fan-shaped reel unit.

[0019] Meanwhile, the electromagnet is arranged opposite to the permanent magnet.

[0020] A method for using a lifting device for preventing cargo from swaying comprises the following steps:

[0021] S1: Use the lifting head to fix the cargo to the rope;

[0022] S2: Start the motor and use the motor to drive the reel to rotate, so as to reel in the twisted rope and lift the goods;

[0023] S3: After lifting, the cargo is moved by the moving device. During the movement, the cargo swing will be adjusted adaptively;

[0024] S4: After reaching the destination, the twisted rope is unwound by the motor.

[0025] The beneficial effects of the present invention are:

[0026] 1. The present invention, by providing components such as a swing sensor and an electric telescopic device, can balance the lateral swing of the goods by utilizing the lateral movement of the slide seat when the goods fluctuate in speed during movement or suddenly stop at the destination, thereby offsetting the lateral swing of the goods. In the process of reciprocating balance, the swing energy is gradually consumed to stabilize the goods.

[0027] 2. The present invention utilizes the characteristic that the swing frame swings along with the swing of the twisted rope, and combines the characteristics of the insulating rod and the vortex-shaped resistor to comprehensively control the input power of the electric expansion joint. Thus, the swing angle can be sensed by the entire swing sensing unit, and the electric expansion joints on both sides can be automatically controlled, thereby automatically controlling the position of the slide seat. The entire process does not require human intervention or algorithm intervention.

[0028] 3. The present invention increases the range of power change of the entire electric telescopic device by setting the vortex-shaped resistance to a vortex shape and coordinating the meshing speed-increasing effect of the acceleration gear, the speed change gear and the gear ring, thereby increasing the control accuracy.

[0029] 4. In the present invention, by providing insulating rods and springs, etc., the continuous friction between the electrode head and the vortex-shaped resistor will cause surface loss, so that the elastic effect of the spring can be used to compensate for the loss, thereby ensuring the reliability of its release and increasing the reliability of the device.

[0030] 5. The present invention can control the magnetic repulsion of the electromagnet on the permanent magnet by changing the current passed into the electromagnet, thereby changing the position of the fan-shaped reel unit, thereby changing the winding radius, and combined with the speed control of the motor, high-precision control of the winding speed can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall structure of a lifting device for preventing cargo from swaying proposed by the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of the hoisting part of a lifting device for preventing cargo from swaying proposed by the present invention;

[0033] Figure 3 A schematic diagram of the retractable drum structure of a lifting device for preventing cargo from swaying proposed by the present invention;

[0034] Figure 4 This is a schematic cross-sectional view of a variable diameter assembly of a lifting device for preventing cargo from swaying proposed by the present invention;

[0035] Figure 5 This is a schematic diagram of the structure of a swing sensing part of a lifting device for preventing cargo from swinging, which is proposed by the present invention;

[0036] Figure 6 This is a schematic diagram of the matching structure of the acceleration gear, the speed change gear and the gear ring of a lifting device for preventing cargo from swaying proposed by the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of a sliding block, a spring, and an electrode head of a lifting device for preventing cargo from swaying proposed by the present invention;

[0038] Figure 8 The present invention is a schematic diagram of the circuit structure of a lifting device for preventing cargo from swaying.

[0039] In the figure: 1. mounting base; 2. hoisting part; 3. rope; 4. swing sensing part; 5. lifting head; 6. guide slide rod; 7. electric telescopic device; 8. slide seat; 9. motor; 10. retractable drum; 11. bracket; 12. fan-shaped drum unit; 13. reducing assembly; 14. connecting rod; 15. sliding sleeve; 16. permanent magnet; 17. electromagnet; 18. main shaft; 19. fixed frame; 20. articulated shaft; 21. swing frame; 22. guide wheel group 1; 23. connecting shaft; 24. guide wheel group 2; 25. transition drum; 26. acceleration gear; 27. insulating rod; 28. guide seat; 29. ​​speed change gear; 30. gear ring; 31. vortex resistance; 32. sliding block; 33. spring; 34. electrode head. DETAILED DESCRIPTION

[0040] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0041] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention. Example

[0042] A lifting device that prevents cargo from swaying, such as Figure 1-Figure 8 As shown, it includes a mounting seat 1, and the mounting seat 1 is installed on a mobile device. The mobile device can be a crane of a trolley or a boom of a crane, etc. These are all existing technologies and will not be described in detail in this embodiment. A winch portion 2 is provided on the top of the mounting seat 1, and a twisting rope 3 is provided on the outer wall of the winch portion 2. A swing sensing portion 4 cooperating with the twisting rope 3 is provided on the bottom of the mounting seat 1, and after the twisting rope 3 is matched with the swing sensing portion 4, a hanging head 5 is fixed at the end of the twisting rope 3. In this embodiment, the specific type of the hanging head 5 is not limited, and it can be a hook, a sling, and a lifting tool, etc., which are all disclosed in the existing technology. This embodiment does not make creative work on it, so it will not be described in detail.

[0043] The hoisting part 2 includes a slide 8, a motor 9 and a retractable drum 10. The slide 8 is slidably connected to the inner wall of the mounting base 1 through a guide slide 6, and the axial direction of the guide slide 6 is parallel to the direction in which the goods need to be moved. The top outer wall of the slide 8 is fixed with a bracket 11 by bolts, the motor 9 is fixed to the outer wall of one side of the bracket 11 by bolts, and the retractable drum 10 is rotatably connected to the inner side of the bracket 11 through a main shaft 18, and the output end of the motor 9 is connected to the end of the main shaft 18 through a coupling.

[0044] Electric retractors 7 are fixed to both sides of the slide seat 8 by bolts, and the housing portion of the electric retractor 7 is fixedly embedded in the inner wall of the mounting seat 1 .

[0045] When the device is in use, it can be fixed to the cargo through the lifting head 5, and then when the motor 9 is started, the motor 9 can drive the main shaft 18 to rotate, thereby driving the reel 10 to rotate, so as to realize the winding of the twisted rope 3. After the heavy object is lifted by the winding of the twisted rope 3, the moving device is used to drive the mounting base 1 to move to realize the movement of the cargo. In the process of movement, if the cargo deflects, the swing sensing unit 4 can sense the deflection direction, and according to the sensing result, control the electric telescopic device 7 on the deflected side to extend, while the electric telescopic device 7 on the other side contracts, so that the slide 8 slides in the opposite direction of the deflection direction, thereby balancing the lateral angle of the cargo deflection and gradually reducing the swing amplitude of the cargo.

[0046] This device, by providing components such as a swing sensing part 4 and an electric telescopic device 7, can balance the lateral swing of the goods by utilizing the lateral movement of the slide 8 when the speed of the goods fluctuates during the movement or when the goods suddenly stop at the destination, thereby offsetting the lateral swing of the goods, and gradually consuming the swing energy during the reciprocating balance process, thereby stabilizing the goods.

[0047] To solve the induction problem; Figure 5-7 As shown, the swing sensing part 4 includes a fixed frame 19 and a swing frame 21, the fixed frame 19 is fixed to the bottom outer wall of the mounting base 1 by bolts, the swing frame 21 is rotatably connected to the inner side of the fixed frame 19 by a hinge shaft 20, a guide wheel group 1 22 for limiting the position of the twisted rope 3 is arranged on the inner side of the bottom of the swing frame 21, and a guide wheel group 2 24 for limiting the position of the twisted rope 3 is arranged on the inner side of the top of the fixed frame 19, the guide wheel group 1 22 and the guide wheel group 2 24 are rotatably connected to the swing frame 21 and the fixed frame 19 respectively by a connecting shaft 23, and a transition drum 25 is rotatably connected to the outer wall of the hinge shaft 20.

[0048] The twisted rope 3 is wound around the outer wall of the transition drum 25 .

[0049] The swing sensing part 4 also includes two sets of opposing acceleration gears 26, a speed gear 29 and a gear ring 30. The gear ring 30 is fixed to the side wall of the fixed frame 19 by bolts. The speed gear 29 is rotatably connected to the side wall of the swing frame 21. The acceleration gear 26 is rotatably connected to the outer wall of the hinge shaft 20.

[0050] A guide seat 28 and a vortex-shaped resistor 31 are fixed to the side walls of the swing frame 21 respectively. A vortex groove corresponding to the position and shape of the vortex-shaped resistor 31 is opened on the inner wall of the guide seat 28. A sliding block 32 is slidably connected to the inner wall of the acceleration gear 26. An insulating rod 27 is slidably connected to the side wall of the sliding block 32. The end of the insulating rod 27 contacts and is electrically connected to the side wall of the vortex-shaped resistor 31, and the insulating rod 27 is movably limited and matched to the inner wall of the vortex groove of the guide seat 28.

[0051] A spring 33 is buckled on the end surface of the sliding block 32 , and the other end of the spring 33 is buckled on the outer wall of the insulating rod 27 .

[0052] The two groups of vortex-shaped resistors 31 and electrode heads 34 are electrically connected to the power supply circuit of the electric expansion joint 7 respectively, and the wiring methods are different. For specific wiring methods, refer to Figure 8 .

[0053] Since the rope 3 is limited by the position of the transition drum 25 and the guide wheel group 1 22 and the guide wheel group 2 24, when the cargo swings, the redundant swing sensing part 4 of the rope 3 will also swing, so that the guide wheel group 1 22 swings with the rope 3. At this time, the swing frame 21 will rotate relative to the fixed frame 19, so that the speed change gear 29 rotates relative to the gear ring 30, so that the engagement of the acceleration gear 26, the speed change gear 29 and the gear ring 30 drives the acceleration gear 26 to rotate, and then drives the sliding block 32, the insulating rod 27 and the electrode head 34 to rotate, so that the electrode head 34 cooperates with the position change of the vortex-shaped matching resistor 31, so that the resistance value of the vortex-shaped matching resistor 31 connected to the electric expansion joint 7 changes, specifically, the resistance value of the vortex-shaped matching resistor 31 in the electric expansion joint 7 located on the deflection side decreases, while that on the other side increases, so that the input power of the electric expansion joint 7 on both sides changes, and its thrust on the slide 8 is unbalanced, and the slide 8 moves to the side with reduced power.

[0054] This device utilizes the characteristic that the swing frame 21 swings along with the swing of the rope 3, and combines the characteristics of the insulating rod 27 and the vortex-shaped resistor 31 to comprehensively control the input power of the electric expansion joint 7. Thus, the swing angle can be sensed through the entire swing sensing part 4, and the electric expansion joints 7 on both sides can be automatically controlled, thereby automatically controlling the position of the slide 8. The whole process does not require human intervention or algorithm intervention.

[0055] In addition, the device increases the range of power change of the entire electric telescopic device 7 by setting the vortex-shaped resistance 31 to a vortex shape and cooperating with the meshing speed-increasing effect of the acceleration gear 26, the speed change gear 29, and the gear ring 30, thereby increasing the control accuracy.

[0056] At the same time, by setting up the insulating rod 27 and the spring 33, the continuous friction between the electrode head 34 and the vortex-shaped resistor 31 will cause surface loss, so the elastic effect of the spring 33 can be used to compensate for the loss, thereby ensuring the reliability of its release and increasing the reliability of the device.

[0057] In order to solve the problem of retracting and releasing speed control; Figure 3 , 4 As shown, the retractable reel 10 is composed of a plurality of fan-shaped reel units 12 , which are slidably connected to the radial direction of the main shaft 18 , and variable diameter components 13 for position control of the fan-shaped reel units 12 are provided at both ends of the main shaft 18 .

[0058] The variable diameter assembly 13 includes a sliding sleeve 15, a permanent magnet 16 and an electromagnet 17. The sleeve 15 is slidably connected to the axial outer wall of the main shaft 18. The permanent magnet 16 is fixed to the end face of the sleeve 15 by bolts, and the electromagnet 17 is arranged opposite to the permanent magnet 16. The electromagnet 17 is fixed to the outer wall of the main shaft 18 by bolts. The outer wall of the sleeve 15 is rotatably connected to a plurality of connecting rods 14, and the other end of the connecting rod 14 is rotatably connected to the inner wall of the fan-shaped reel unit 12.

[0059] Since the winding speed is the product of the angular velocity of the winding drum 10 and the winding radius, and the angular velocity of the winding drum 10 is controlled by the motor 9, the control has a certain amplitude. For example, the speed control can be achieved by changing the frequency, and the speed can be adjusted from 3000-1500-750, but the speed between 3000-1500 and 1500-750 cannot be controlled, so the control accuracy is low. On this basis, when the device is used, the magnetic repulsion of the electromagnet 17 on the permanent magnet 16 can be controlled by changing the current passed into the electromagnet 17, thereby changing the position of the fan-shaped drum unit 12, thereby changing the winding radius, and combined with the speed control of the motor 9, high-precision control of the winding speed can be achieved.

[0060] When the present embodiment is in use, the lifting head 5 can be fixed to the cargo, and then when the motor 9 is started, the motor 9 can drive the main shaft 18 to rotate, thereby driving the reel 10 to rotate, so as to realize the reeling of the twisted rope 3. After the heavy object is lifted by the reeling of the twisted rope 3, the moving device is used to drive the mounting seat 1 to move to realize the movement of the cargo. In the process of movement, if the cargo deflects, the swing sensing part 4 can sense the deflection direction, and according to the sensing result, control the electric telescopic device 7 on the deflection side to extend, while the electric telescopic device 7 on the other side to contract, so that the slide seat 8 moves in the deflection direction. The goods will slide in the opposite direction, thereby balancing the lateral angle of the goods deflection and gradually reducing the swing amplitude of the goods. Since the rope 3 is limited by the position of the transition drum 25 and the guide wheel group 1 22 and the guide wheel group 2 24, when the goods swing, the redundant swing sensing part 4 of the rope 3 will also swing, so that the guide wheel group 1 22 will swing with the rope 3. At this time, the swing frame 21 will rotate relative to the fixed frame 19, so that the speed change gear 29 will rotate relative to the gear ring 30, so that the acceleration gear 26 is driven to rotate by the meshing of the acceleration gear 26, the speed change gear 29 and the gear ring 30, and then the sliding The moving block 32, the insulating rod 27, and the electrode head 34 rotate, so that the position of the electrode head 34 matched with the vortex-shaped matching resistor 31 changes, so that the resistance value of the vortex-shaped matching resistor 31 connected to the electric expansion joint 7 changes, specifically, the resistance value of the vortex-shaped matching resistor 31 in the electric expansion joint 7 located on the deflection side decreases, while the resistance value of the other side increases, so that the input power of the electric expansion joint 7 on both sides changes, and the thrust on the slide 8 is unbalanced, and the slide 8 moves to the side with reduced power. Since the winding speed is equal to the product of the angular velocity of the winding drum 10 and the winding radius, and the angular velocity of the winding drum 10 is controlled by the motor 9 The control has a certain amplitude. For example, the speed control can be achieved by changing the frequency, and the speed can be adjusted from 3000-1500-750. However, the speeds between 3000-1500 and 1500-750 cannot be controlled, so the control accuracy is low. On this basis, when the device is used, the magnetic repulsion of the electromagnet 17 to the permanent magnet 16 can be controlled by changing the current passed into the electromagnet 17, thereby changing the position of the fan-shaped reel unit 12, thereby changing the winding radius, and combined with the speed control of the motor 9, high-precision control of the winding speed can be achieved. Embodiment 1:

[0061] A method for using a lifting device for preventing cargo from swaying comprises the following steps:

[0062] S1: Use the lifting head 5 to fix the cargo to the rope 3;

[0063] S2: starting the motor 9, and using the motor 9 to drive the reel 10 to rotate, so as to reel the twisted rope 3, thereby lifting the goods;

[0064] S3: After lifting, the cargo is moved by the moving device. During the movement, the cargo swing will be adjusted adaptively;

[0065] S4: After reaching the destination, the twisted rope 3 is unwound by the motor 9.

[0066] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lifting device for preventing cargo from swaying, comprising a mounting seat (1), It is characterized in that The top of the mounting seat (1) is provided with a hoisting portion (2), the outer wall of the hoisting portion (2) is matched with a twisting rope (3), the bottom of the mounting seat (1) is provided with a swing sensing portion (4) matched with the twisting rope (3), and after the twisting rope (3) is matched with the swing sensing portion (4), a hanging head (5) is fixed to the end of the twisting rope (3); The hoisting part (2) comprises a slide seat (8), a motor (9) and a retractable reel (10), wherein the slide seat (8) is slidably connected to the inner wall of the mounting seat (1) via a guide slide rod (6), and the axial direction of the guide slide rod (6) is parallel to the direction in which the goods are to be moved, a bracket (11) is fixed to the top outer wall of the slide seat (8) via bolts, the motor (9) is fixed to the outer wall of one side of the bracket (11) via bolts, and the retractable reel (10) is rotatably connected to the inner side of the bracket (11) via a main shaft (18), and the output end of the motor (9) is connected to the end of the main shaft (18) via a coupling; Electric retractors (7) are fixed to both sides of the slide seat (8) by means of bolts, and a shell portion of the electric retractor (7) is fixedly embedded in the inner wall of the mounting seat (1); The swing sensing part (4) comprises a fixed frame (19) and a swing frame (21), wherein the fixed frame (19) is fixed to the bottom outer wall of the mounting seat (1) by bolts, and the swing frame (21) is rotatably connected to the inner side of the fixed frame (19) by a hinge shaft (20), and a guide wheel group 1 (22) for limiting the position of the twisted rope (3) is arranged on the inner side of the bottom of the swing frame (21), and a guide wheel group 2 (24) for limiting the position of the twisted rope (3) is arranged on the inner side of the top of the fixed frame (19), and the guide wheel group 1 (22) and the guide wheel group 2 (24) are respectively rotatably connected to the swing frame (21) and the fixed frame (19) by a connecting shaft (23), and a transition drum (25) is rotatably connected to the outer wall of the hinge shaft (20), and the twisted rope (3) is wound around the outer wall of the transition drum (25); The swing sensing part (4) further comprises two sets of opposing acceleration gears (26), a speed gear (29) and a gear ring (30); the gear ring (30) is fixed to the side wall of the fixing frame (19) by bolts; the speed gear (29) is rotatably connected to the side wall of the swing frame (21); the acceleration gear (26) is rotatably connected to the outer wall of the hinge shaft (20); the speed gear (29) rotates relative to the gear ring (30), and the acceleration gear (26) is meshedly connected with the speed gear (29); A guide seat (28) and a vortex-shaped resistor (31) are fixed to the side walls of the swing frame (21), the inner wall of the guide seat (28) is provided with a vortex groove corresponding to the position and shape of the vortex-shaped resistor (31), the inner wall of the acceleration gear (26) is slidably connected to a sliding block (32), the side wall of the sliding block (32) is slidably connected to an insulating rod (27), the electrode head (34) at the end of the insulating rod (27) contacts and is electrically connected to the side wall of the vortex-shaped resistor (31), and the insulating rod (27) is movably limited and matched to the inner wall of the vortex groove of the guide seat (28); The end surface of the sliding block (32) is buckled with a spring (33), and the other end of the spring (33) is buckled with the outer wall of the insulating rod (27); The two groups of vortex-shaped resistors (31) and electrode heads (34) are respectively electrically connected to the power supply circuit of the electric expansion joint (7), and the wiring methods are different.

2. A lifting device for preventing cargo from swaying according to claim 1, It is characterized in that The retractable reel (10) is composed of a plurality of fan-shaped reel units (12), the plurality of fan-shaped reel units (12) being slidably connected to the radial direction of a main shaft (18), and diameter-changing components (13) for controlling the positions of the fan-shaped reel units (12) are provided at both ends of the main shaft (18).

3. A lifting device for preventing cargo from swaying according to claim 2, It is characterized in that The variable diameter assembly (13) comprises a sliding sleeve (15), a permanent magnet (16) and an electromagnet (17); the sliding sleeve (15) is slidably connected to the axial outer wall of the main shaft (18); the permanent magnet (16) is fixed to the end surface of the sliding sleeve (15) by bolts; the electromagnet (17) is fixed to the outer wall of the main shaft (18) by bolts; the outer wall of the sliding sleeve (15) is rotatably connected to a plurality of connecting rods (14); the other end of the connecting rod (14) is rotatably connected to the inner wall of the fan-shaped reel unit (12).

4. A lifting device for preventing cargo from swaying according to claim 3, It is characterized in that The electromagnet (17) and the permanent magnet (16) are arranged opposite to each other.

5. A method for using the lifting device for preventing cargo from swaying according to any one of claims 1 to 4, It is characterized in that The following steps are involved: S1: Use the lifting head (5) to secure the cargo to the rope (3); S2: starting the motor (9), and using the motor (9) to drive the reel (10) to rotate, thereby reeling the twisted rope (3), thereby lifting the goods; S3: After lifting, the cargo is moved by the moving device. During the movement, the cargo swing will be adjusted adaptively; S4: After reaching the destination, the twisted rope (3) is unwound by the motor (9).

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