Automatic sling eyelet rigging and rigging method

The automatic sling loop winding device enables automated bending and winding of wire ropes, solving the problems of high labor intensity and low efficiency in existing technologies, and improving production efficiency and safety.

CN122105891APending Publication Date: 2026-05-29CNPC NATIONAL OIL & GAS DRILLING EQUIPMENT ENGINEERING & TECHNOLOGY RESEARCH CENTER CO LTD +2

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CNPC NATIONAL OIL & GAS DRILLING EQUIPMENT ENGINEERING & TECHNOLOGY RESEARCH CENTER CO LTD
Filing Date
2024-11-27
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing wire rope slings are labor-intensive and inefficient during bending and winding processes. Frequent replacement of wire rope slings of different lengths wastes time, affects the performance of efficient machinery, and poses safety hazards.

Method used

An automatic sling loop winding device is adopted, including a rope feeding device, a rope winding device, and a clamping device. The clamping, rope feeding, rope winding, and clamping actions are controlled by a hydraulic system to achieve automated bending and winding of the wire rope, reducing manual operation.

Benefits of technology

It significantly reduces manual labor intensity, improves production efficiency, and is applicable to various specifications of wire rope slings, reducing the labor intensity of operators and improving work efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The automatic sling eyelet rope winding device comprises oppositely arranged rope feeding devices and rope winding devices, and a buckling device is arranged between the rope feeding devices and the rope winding devices, the rope feeding devices, the rope winding devices and the buckling device are electrically connected with a control system respectively, and the control system is used for controlling the actions of the rope feeding devices, the rope winding devices and the buckling device. The application also discloses a rope winding method of the automatic sling eyelet rope winding device. The application solves the problems of large workload and low efficiency of the existing bending and winding, greatly improves the work efficiency, and saves manpower and resources.
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Description

Technical Field

[0001] This invention belongs to the field of mechanical equipment manufacturing technology, specifically relating to an automatic sling loop winding device. This invention also relates to a winding method for the automatic sling loop winding device. Background Technology

[0002] Currently, machinery that uses the scaling of steel wire ropes to traction or lift heavy objects uses a single steel wire rope as raw material, with both ends forming a specific structure according to specific processes; this is called a steel wire rope sling. The lifting of objects using steel wire rope slings typically employs methods such as spliced ​​slings, pressed slings, and seamless rope loops.

[0003] Existing wire rope slings mainly include pressed wire rope slings, spliced ​​wire rope slings, cable slings, and slings. Pressed and spliced ​​wire rope slings generally have poor flexibility. For slings bearing a certain load, due to the limitation of the wire rope diameter, the eye loops need to be large, and the distance between two eye loops must be greater than a certain length. The eye loops provide additional connection strength and stability, making the sling easier to use with hooks or other connecting equipment. These slings are heavy, making them inconvenient for workers to operate. Cable slings and slings, due to their larger diameter, in addition to the shortcomings of pressed and spliced ​​wire rope slings, also have complex manufacturing processes, often resulting in twisting phenomena and difficulty in controlling length errors. When lifting lighter loads using a single wire rope sling, since the length of the wire rope sling cannot be changed, different lengths of wire rope slings must be used when the lifting environment and space change; frequent changes in wire rope lengths are very time-consuming.

[0004] During the production process, wire rope slings need to be bent, wrapped, and then pressed into shape. Currently, bending and wrapping in the domestic wire rope production process are basically done manually. As wire rope specifications develop towards higher load-bearing capacity, the diameter of the wire rope increases accordingly, making manual bending and wrapping increasingly difficult. The structure is complex, heavy, and the increased height also increases its own weight, resulting in a greater system weight. This operation method is labor-intensive, inefficient, and may pose safety hazards, while also affecting and hindering the performance of efficient machinery.

[0005] Therefore, developing a device that can automatically bend and wrap ropes is of great significance for improving work efficiency and safety. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic sling loop winding device, which solves the problems of large workload and low efficiency of existing bending and winding ropes.

[0007] Another object of the present invention is to provide a rope winding method for an automatic sling loop rope winding device.

[0008] The first technical solution adopted in this invention is: an automatic sling loop winding device, including a rope feeding device and a rope winding device arranged opposite to each other, a clamping device is provided between the rope feeding device and the rope winding device, and the rope feeding device, the rope winding device and the clamping device are electrically connected to a control system, which is used to control the operation of the rope feeding device, the rope winding device and the clamping device.

[0009] The first technical solution of the present invention is further characterized in that, The rope feeding device includes a rope feeding frame, a rope feeding stroke cylinder is horizontally installed at one end of the rope feeding frame, a rope feeding guide rail is installed along a straight line extending from the telescopic end of the rope feeding stroke cylinder, a slider a is slidably engaged in the rope feeding guide rail, a movable clamping device is installed on the slider a, the movable clamping device is used to clamp the wire rope, and the rope feeding stroke cylinder is connected to the control system.

[0010] The movable clamping device includes a movable crossbeam, the direction of which the movable crossbeam extends is perpendicular to the length direction of the rope feeding guide rail, a bracket is provided on the movable crossbeam, a clamping clamp a is provided on the bracket, the clamping clamp a is connected to a clamping cylinder a, the clamping cylinder a is fixed on the bracket, and the clamping cylinder a is connected to the control system.

[0011] The rope winding device includes a rope winding frame, a rope winding stroke cylinder horizontally installed at one end of the rope winding frame, a rope winding guide rail installed along a straight line extending from the extension end of the rope winding stroke cylinder, a slider b slidably engaged inside the rope winding guide rail, a movable support installed on slider b, a lifting device installed on the movable support, a rotating device installed on the lifting device, a swing arm installed on the rotating device, and the rope winding stroke cylinder connected to the control system.

[0012] The lifting device includes two lifting guide rails, which are vertically mounted on a movable support. A support plate is mounted on the top of the two lifting guide rails, and a lifting cylinder is mounted at the center of the support plate. The piston end of the lifting cylinder is vertically connected to the lifting platform, and the lifting guide rails are sleeved at both ends of the lifting platform. The lifting cylinder is connected to the control system.

[0013] The rotating device includes a swing cylinder, which is mounted on the lifting platform. A swing arm is installed on the output shaft at the bottom of the swing cylinder, and the swing cylinder is connected to the control system.

[0014] A clamping clamp b is installed on the end of the swing arm away from the swing cylinder. The clamping clamp b is connected to the clamping cylinder b, which is fixed on the swing arm and connected to the control system.

[0015] Both the rope feeding frame and the rope winding frame adopt a rectangular rigid frame structure; both the rope feeding guide rail and the rope winding guide rail adopt two parallel linear guide rails, and the central axes of the two linear guide rails are located on the same straight line.

[0016] The control system includes a hydraulic system, which is connected to clamping cylinder a, clamping cylinder b, rope feeding cylinder, rope winding cylinder, lifting cylinder, and swing cylinder via hydraulic lines. The hydraulic system includes a local control switch and a remote control, which control the movement of clamping cylinder a, clamping cylinder b, rope feeding cylinder, rope winding cylinder, lifting cylinder, and swing cylinder.

[0017] The second technical solution adopted in this invention is: a rope winding method using an automatic sling loop rope winding device. Initially, the wire rope is placed into the clamping jaws a of the movable clamping device, with the wire rope extending a certain length beyond clamping jaws a to ensure it does not slip out. The control system controls the clamping cylinder a to clamp the wire rope tightly. The rope feeding stroke cylinder causes the movable clamping device to move along the rope feeding guide rail, passing the wire rope through the rope end clamping device. Then, with manual assistance, the wire rope is placed into the swing arm of the winding device. The swing arm is in its initial position. Starting from a position far from the crimping device, the control system controls the clamping cylinder b to clamp the wire rope. The control system also controls the swing cylinder to start the swing arm to rotate and wind the rope. After the rope loop at the end of the wire rope is formed, the swing arm is finally in a horizontal parallel position with the winding guide rail. The control system controls the winding stroke cylinder to move the movable support along the winding guide rail toward the crimping device, sending the rope loop into the rope end crimping device. According to the different center heights of the crimping device, the lifting cylinder in the lifting device controls the lifting platform to rise and fall, thereby adjusting the height of the swing arm on the lifting platform.

[0018] The beneficial effects of this invention are as follows: The automatic sling loop winding device of this invention feeds the wire rope through a rope feeding device, and then the winding device completes the bending and winding of the wire rope. This can significantly reduce the intensity of manual labor, improve production efficiency, and is easy to install and operate. It is suitable for winding the rope end of wire rope slings of various specifications, meets the needs of different working conditions, improves efficiency, reduces the labor intensity of operators, and is suitable for wire rope quality and production efficiency requirements. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the automatic sling loop rope winding device of the present invention; Figure 2 This is a top view of the automatic sling loop rope winding device of the present invention; Figure 3 This is a schematic diagram of the moving clamping device of the present invention; Figure 4 This is a top view of the beam of the movable clamping device of the present invention; Figure 5 This is a schematic diagram of the lifting device structure of the present invention; Figure 6 This is a top view of the lifting device of the present invention.

[0020] In the diagram, 1. Rope feeding device, 2. Rope feeding stroke cylinder, 3. Rope feeding guide rail, 4. Moving clamping device, 5. Rope winding device, 6. Rope winding stroke cylinder, 7. Rope winding guide rail, 8. Moving support, 9. Swing arm, 10. Swing arm lifting device; 11. Control system, 12. Clamping device. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0022] Example 1 The structure of the automatic sling loop rope winding device of the present invention is as follows: Figure 1 As shown, it includes a rope feeding device 1 and a rope winding device 5 arranged opposite to each other, with a clamping device 12 provided between the rope feeding device 1 and the rope winding device 5, such as... Figure 2 As shown, the rope feeding device 1, the rope winding device 5, and the clamping device 12 are electrically connected to the control system 11, which controls the operation of the rope feeding device 1, the rope winding device 5, and the clamping device 12. Example 2 The automatic sling loop winding device of the present invention includes a rope feeding device 1 and a rope winding device 5 arranged opposite to each other. A clamping device 12 is arranged between the rope feeding device 1 and the rope winding device 5. The rope feeding device 1, the rope winding device 5, and the clamping device 12 are electrically connected to a control system 11. The control system 11 is used to control the operation of the rope feeding device 1, the rope winding device 5, and the clamping device 12. Based on embodiment 1, the rope feeding device 1 in this embodiment includes a rope feeding frame. A rope feeding stroke cylinder 2 is horizontally arranged at one end of the rope feeding frame. A rope feeding guide rail 3 is arranged along a straight line extending from the extension end of the rope feeding stroke cylinder 2. A slider a is slidably engaged in the rope feeding guide rail 3. A movable clamping device 4 is arranged on the slider a. The movable clamping device 4 is used to clamp the wire rope. The rope feeding stroke cylinder 2 is connected to the control system 11. The rope feeding stroke cylinder 2 controls the movable clamping device 4 to reciprocate along the rope feeding guide rail 3 to complete the rope feeding action.

[0023] Example 3 The automatic sling loop winding device of the present invention includes a rope feeding device 1 and a rope winding device 5 arranged opposite to each other. A clamping device 12 is arranged between the rope feeding device 1 and the rope winding device 5. The rope feeding device 1, the rope winding device 5, and the clamping device 12 are electrically connected to a control system 11. The control system 11 is used to control the operation of the rope feeding device 1, the rope winding device 5, and the clamping device 12. The rope feeding device 1 includes a rope feeding frame. A rope feeding stroke cylinder 2 is horizontally arranged at one end of the rope feeding frame. A rope feeding guide rail 3 is arranged along a straight line extending from the extension end of the rope feeding stroke cylinder 2. A slider is slidably engaged in the rope feeding guide rail 3. A movable clamping device 4 is arranged on the slider. The movable clamping device 4 is used to clamp the wire rope. The rope feeding stroke cylinder 2 is connected to the control system 11. The movable clamping device 4 is controlled by the rope feeding stroke cylinder 2 to reciprocate along the rope feeding guide rail 3 to complete the rope feeding action. Based on embodiment 2, the structure of the movable clamping device 4 in this embodiment is as follows: Figure 3 and Figure 4 As shown, the movable clamping device 4 includes a movable crossbeam. The direction in which the movable crossbeam extends is perpendicular to the length direction of the rope feeding guide rail 3. A bracket is provided on the movable crossbeam, and a clamping clamp a is provided on the bracket. The clamping clamp a is connected to a clamping cylinder a. The clamping cylinder a is fixed on the bracket and connected to the control system 11. The clamping clamp a is controlled by the clamping cylinder a to clamp and fasten the wire rope.

[0024] Example 4 The rope winding device 5 includes a rope winding frame. A rope winding stroke cylinder 6 is horizontally installed at one end of the rope winding frame. A rope winding guide rail 7 is installed along a straight line extending from the telescopic end of the rope winding stroke cylinder 6. A slider b is slidably engaged inside the rope winding guide rail 7. A movable support 8 is installed on the slider b. A lifting device 10 is installed on the movable support 8. A rotating device is installed on the lifting device 10. A swing arm 9 is installed on the rotating device. The rope winding stroke cylinder 6 is connected to a control system 11. The lifting device 10 is controlled to reciprocate along the rope winding guide rail 7 to complete the rope winding action.

[0025] Example 5 Based on Embodiment 4, the structure of the lifting device 10 in this embodiment is as follows: Figure 5 and Figure 6 As shown, the lifting device 10 includes two lifting guide rails, which are vertically mounted on the movable support 8. A support plate is mounted on the top of the two lifting guide rails, and a lifting cylinder is mounted at the center of the support plate. The piston end of the lifting cylinder is vertically connected to the lifting platform, and the lifting guide rails are sleeved at both ends of the lifting platform. The lifting cylinder is connected to the control system 11, and the lifting cylinder controls the lifting platform to rise and fall smoothly in the vertical direction, with high height positioning accuracy.

[0026] The rotating device includes a swing cylinder mounted on a lifting platform. A swing arm 9 is installed on the output shaft at the bottom of the swing cylinder. The swing cylinder is connected to a control system 11, which controls the swing arm 9 to swing ±180° relative to the horizontal plane. A clamping clamp b is installed on the end of the swing arm 9 away from the swing cylinder. The clamping clamp b is connected to a clamping cylinder b, which is fixed to the swing arm 9. The clamping cylinder b is connected to the control system 11, and controls the clamping clamp b to clamp and secure the wire rope. After the swing arm 9 winds the wire rope by controlling the clamping clamp b on the swing arm 9, the winding stroke cylinder 6 sends the wound rope end to the clamping device 12.

[0027] Example 6 The crimping device 12 uses a wire rope crimping machine. The two ends of the wire rope are fixedly connected to the transition joint by crimping. The crimping device 12 makes the connection less likely to loosen, greatly improving the stability and reliability of the connection and making the connection contact more stable.

[0028] Both the rope feeding frame and the rope winding frame adopt a rectangular rigid frame structure; both the rope feeding guide rail 3 and the rope winding guide rail 7 adopt two parallel linear guide rails, and the central axes of the two linear guide rails are located on the same straight line.

[0029] The control system 11 includes a hydraulic system, which is connected to clamping cylinder a, clamping cylinder b, rope feeding cylinder 2, rope winding cylinder 6, lifting cylinder, and swing cylinder via hydraulic lines. The hydraulic system includes a local control switch and a remote control, which control the movement of clamping cylinder a, clamping cylinder b, rope feeding cylinder 2, rope winding cylinder 6, lifting cylinder, and swing cylinder, and can precisely control the movement of rope feeding device 1 and rope winding device 5.

[0030] The automatic sling loop winding device of the present invention employs the aforementioned automatic sling loop winding device. Initially, the wire rope is placed into the clamping clamp a of the movable clamping device 4, with the wire rope extending a certain length beyond the clamping clamp a to ensure it does not slip out. The control system 11 controls the clamping cylinder a to clamp the wire rope tightly. The rope feeding stroke cylinder 2 causes the movable clamping device 4 to move along the rope feeding guide rail 3, passing the wire rope through the rope end clamping device 12. Then, with manual assistance, the wire rope is placed into the swing arm 9 of the winding device 5. The swing arm 9 is in its initial position, away from the clamping device 12. The control system 11 controls the clamping cylinder b to clamp the wire rope, and controls the swing cylinder to start the swing arm 9 to rotate and wind the rope. After the rope loop at the end of the wire rope is formed, the swing arm 9 is finally in a horizontal parallel state with the rope winding guide rail 7. The control system 11 controls the rope winding stroke cylinder 6 to move the moving support 8 along the rope winding guide rail 7 towards the clamping device 12, and sends the rope loop into the rope end clamping device 12. According to the different center heights of the clamping device 12, the lifting cylinder in the lifting device 10 controls the lifting platform to lift and lower, thereby adjusting the height of the swing arm 9 on the lifting platform.

[0031] The working principle of the automatic sling loop winding device of this invention is as follows: the rope feeding and winding device frame is an integral rectangular rigid frame structure, which is compact, lightweight, portable, compatible, and easy to arrange. The control system adjusts the position of the wire rope, thereby adjusting the size of the wire rope loop. It can be used as a configuration unit for new equipment or as a separate configuration unit for upgrading old equipment, making it highly applicable. The automatic sling loop winding device of this invention is suitable for winding sling loops with diameters of φ32mm-φ78, has sufficient safety and stability, and good lifting capacity. It can replace manual operation, reduce labor intensity, and achieve efficient and safe production. It can maintain efficient and safe operation in different working scenarios.

Claims

1. An automatic sling loop winder, characterized in that, It includes a rope feeding device (1) and a rope winding device (5) arranged opposite to each other. A clamping device (12) is set between the rope feeding device (1) and the rope winding device (5). The rope feeding device (1), the rope winding device (5) and the clamping device (12) are electrically connected to the control system (11). The control system (11) is used to control the operation of the rope feeding device (1), the rope winding device (5) and the clamping device (12).

2. The automatic sling loop rope winding device as described in claim 1, characterized in that, The rope feeding device (1) includes a rope feeding frame, a rope feeding stroke cylinder (2) is horizontally arranged at one end of the rope feeding frame, a rope feeding guide rail (3) is arranged along the straight line extending from the telescopic end of the rope feeding stroke cylinder (2), a slider a is slidably engaged in the rope feeding guide rail (3), a movable clamping device (4) is arranged on the slider a, the movable clamping device (4) is used to clamp the wire rope, and the rope feeding stroke cylinder (2) is connected to the control system (11).

3. The automatic sling loop rope winding device as described in claim 2, characterized in that, The movable clamping device (4) includes a movable crossbeam, the direction of which the movable crossbeam extends is perpendicular to the length direction of the rope feeding guide rail (3), a bracket is provided on the movable crossbeam, a clamping clamp a is provided on the bracket, the clamping clamp a is connected to the clamping cylinder a, the clamping cylinder a is fixed on the bracket, and the clamping cylinder a is connected to the control system (11).

4. The automatic sling loop rope winding device as described in claim 3, characterized in that, The rope winding device (5) includes a rope winding frame, a rope winding stroke cylinder (6) is horizontally arranged at one end of the rope winding frame, a rope winding guide rail (7) is arranged along the straight line extending from the extension end of the rope winding stroke cylinder (6), a slider b is slidably engaged in the rope winding guide rail (7), a movable support (8) is arranged on the slider b, a lifting device (10) is arranged on the movable support (8), a rotating device is arranged on the lifting device (10), a swing arm (9) is arranged on the rotating device, and the rope winding stroke cylinder (6) is connected to the control system (11).

5. The automatic sling loop winding device as described in claim 4, characterized in that, The lifting device (10) includes two lifting guide rails, which are vertically mounted on the movable support (8). A support plate is mounted on the top of the two lifting guide rails, and a lifting cylinder is mounted at the center of the support plate. The piston end of the lifting cylinder is vertically connected to the lifting platform, and the lifting guide rails are sleeved at both ends of the lifting platform. The lifting cylinder is connected to the control system (11).

6. The automatic sling loop rope winding device as described in claim 5, characterized in that, The rotating device includes a swing cylinder, which is set on the lifting platform. A swing arm (9) is installed on the output shaft at the bottom of the swing cylinder, and the swing cylinder is connected to the control system (11).

7. The automatic sling loop winding device as described in claim 6, characterized in that, A clamping plier b is provided on the end of the swing arm (9) away from the swing cylinder. The clamping plier b is connected to the clamping cylinder b, which is fixed on the swing arm (9) and connected to the control system (11).

8. The automatic sling loop winding device as described in claim 7, characterized in that, The rope feeding frame and the rope winding frame both adopt a rectangular rigid frame structure; the rope feeding guide rail (3) and the rope winding guide rail (7) both adopt two parallel straight guide rails, and the central axis of the two straight guide rails is located on the same straight line.

9. The automatic sling loop winding device as described in claim 8, characterized in that, The control system (11) includes a hydraulic system, which is connected to clamping cylinder a, clamping cylinder b, rope feeding cylinder (2), rope winding cylinder (6), lifting cylinder, and swing cylinder respectively through hydraulic pipelines. The hydraulic system includes a local control switch and a remote controller, which control the operation of clamping cylinder a, clamping cylinder b, rope feeding cylinder (2), rope winding cylinder (6), lifting cylinder, and swing cylinder.

10. A rope winding method for an automatic sling loop winding device, employing the automatic sling loop winding device as described in claim 9, characterized in that... Initially, the wire rope is placed into the clamping jaws a of the movable clamping device (4). The wire rope extends a certain length beyond the clamping jaws a to ensure that it will not slip out of the clamping jaws a. The control system (11) controls the clamping cylinder a to clamp the wire rope. The rope feeding stroke cylinder (2) causes the movable clamping device (4) to move along the rope feeding guide rail (3). After the wire rope passes through the rope end clamping device (12), the wire rope is manually placed into the swing arm (9) of the rope winding device (5). The swing arm (9) is in the initial position, away from the clamping device (12). The control system (11) controls the clamping cylinder b to clamp the clamping jaw b. The control system (11) controls the swing cylinder to make the swing arm (9) start rotating and winding the rope. After the rope loop at the end of the wire rope is formed, the swing arm (9) is finally in a horizontal parallel state with the winding guide rail (7) after the action is completed. The control system (11) controls the winding stroke cylinder (6) to make the moving support (8) move along the winding guide rail (7) to the clamping device (12) and send the rope loop into the rope end clamping device (12). According to the different center heights of the clamping device (12), the lifting cylinder in the lifting device (10) controls the lifting platform to lift and lower, thereby adjusting the height of the swing arm (9) on the lifting platform.