Double-roller steel wire rope replacement winch

Abstract

The utility model relates to the technical field of mining steel wire rope replacement, and discloses a double-roller steel wire rope replacement winch which comprises a winch frame, the left end of the winch frame is fixedly connected with a fixing frame, the right end of the winch frame is fixedly connected with a connecting frame, the front end of the connecting frame is fixedly connected with a first motor, and the driving end of the first motor is fixedly connected with a transmission rod. The outer wall of the transmission rod is connected with a first winding roller and a second winding roller through a replacement set, the rear end of the first winding roller is rotationally connected with an adapter plate, the outer wall of the adapter plate is slidably connected to the inner wall of the rear end of the connecting frame, the front end of the fixing frame is fixedly connected with a second motor, and the driving end of the second motor is fixedly connected with a reciprocating lead screw. According to the device, old steel wires are wound, new steel wires are discharged synchronously, rapid replacement is completed, manual intervention is reduced, the cutting-in or cutting-out angle of the steel wires is dynamically adjusted through the correcting frame and the correcting ring, it is ensured that the steel wires are evenly wound on the outer side of the first winding roller or the second winding roller, and center accumulation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of wire rope replacement technology in mining, and in particular to a double-drum wire rope replacement winch. Background Technology

[0002] A winch is a mechanical device used for lifting and securing objects. Its history dates back to the late 19th and early 20th centuries, initially used in the mining industry to lift heavy loads. With the expansion of industrialization, the application of winches has gradually broadened, becoming safety equipment in various construction sites and mines. Wire rope winches are an important type, primarily used for lifting and securing equipment or materials. Replacing the wire rope is a crucial step in maintaining the normal operation of the winch. It is necessary to select the appropriate wire rope model based on the equipment parameters and ensure that it has sufficient strength, toughness, and durability. Regularly replacing the wire rope can effectively extend the service life of the winch, ensure the safe and stable operation of the equipment, and reduce operating costs and accident risks.

[0003] After searching, existing technologies for wire rope replacement winches include the following aspects:

[0004] 1. A utility model patent, CN217478738U, has been granted, which describes a device for replacing winch wire ropes. The device includes a trolley and a winding roller. The winding roller is positioned above the trolley. A frame is welded to the upper right side of the trolley, and a motor is fixed to the upper right end of the frame. The motor's power end is connected to a mounting shaft that rotates to the left and passes through the frame. A mounting groove matching the mounting shaft runs from left to right through the middle of the winding roller. An external threaded shaft extending to the left from the mounting groove is fixed to the left end of the mounting shaft. A clamping assembly is provided at the left end of the frame. This utility model inserts the mounting shaft and the external threaded shaft into the mounting groove, and simultaneously inserts a mating block into the mating groove. The locking block then engages with the locking groove. The internal threaded T-sleeve is then tightened to the outer periphery of the external threaded shaft, and the internal threaded T-sleeve is pushed to the right against the left end of the winding roller, thus preventing the winding roller from loosening, ensuring the stability of the winding roller during use, and guaranteeing the convenience of installation and use.

[0005] 2. A utility model patent, CN220485192U, has been granted, describing a wire rope replacement device for a mining endless rope winch. This device includes a flatbed cart for providing new wire rope and recovering old wire rope. The flatbed cart is equipped with a first wire rope pulley for releasing the new wire rope and a second wire rope pulley for recovering the old wire rope. It also includes a guide pulley for tensioning the new wire rope. The guide pulley is fixed to the upper side of the roadway, with its axis perpendicular to the roadway. The new wire rope released from the first wire rope pulley is wound around the guide pulley and connected to a shuttle car, which pulls the new wire rope to lay it within the roadway. Therefore, this replacement device reduces intermediate steps in the entire operation, simplifies the process, and makes it easy to operate. It completely overcomes difficulties such as numerous procedures, a large number of operators, heavy workload, long working hours, and high difficulty in on-site safety management. It eliminates foot and hand contact and wire rope bending, achieving safe, fast, and efficient rope replacement and recovery for the endless rope winch.

[0006] Existing technologies have contributed to the improvement of wire rope replacement winches and proposed different solutions to related problems. However, based on the inventors' practical experience and summaries, the following issues regarding wire rope replacement winches still require further technical solutions for improvement:

[0007] Based on the aforementioned patent (CN217478738U), by inserting the wire rope into the rope hole and then extending the electric cylinder, the clamping block can be easily and quickly clamped. Combined with the spikes on the clamping block, the friction between the clamping block and the wire rope is increased, thus improving the clamping strength of the wire rope and effectively preventing loosening during the wire rope winding process, reducing operational errors. However, the mechanism used in this patent requires an additional new wire rope winch to be prepared for output after the wire rope is replaced, which makes it inconvenient to directly replace the old wire rope with the new one, increasing the complexity and cost of operation.

[0008] Based on the aforementioned patent (CN220485192U), by setting a first wire rope pulley for releasing new wire rope and a second wire rope pulley for retrieving old wire rope on a flatbed cart, wire rope can be released and retrieved simultaneously. A guide pulley is fixed in the tunnel, allowing the new wire rope to bypass the guide pulley and connect to the shuttle car traction wire rope. This reduces intermediate steps in the entire operation, simplifies the process, and makes it easy to operate. It completely overcomes difficulties such as numerous procedures, large workforce, heavy workload, long working hours, and difficult on-site safety management. It eliminates foot and hand contact and wire rope bending, achieving safe, fast, and efficient rope replacement and retrieval using an endless rope winch. However, the wire rope replacement winch in this patent has a problem: during winding, the fixed angle of the exit or entry cut causes the wire to be concentrated at the center of the winding shaft, resulting in uneven wire accumulation and increased internal stress. This phenomenon not only increases the risk of equipment wear and operating costs but may also lead to wire breakage or unstable winch operation, affecting the overall service life and reliability of the equipment. Utility Model Content

[0009] The purpose of this invention is to address the shortcomings of existing technologies by proposing a double-drum wire rope replacement winch that enables the synchronous winding of old wire rope and discharge of new wire rope, achieving rapid replacement and reducing manual intervention. By dynamically adjusting the wire rope entry or exit angle through the straightening frame and straightening ring, the winch ensures that the wire rope is evenly wound on the outside of the first or second winding roller, avoiding accumulation in the center.

[0010] To achieve the above objectives, the present invention provides the following technical solution:

[0011] A double-drum wire rope replacement winch includes a winch frame. A fixed frame is fixedly connected to the left end of the winch frame, and a connecting frame is fixedly connected to the right end of the winch frame. A motor is fixedly connected to the front end of the connecting frame, and a transmission rod is fixedly connected to the drive end of the motor. A take-up roller and a take-up roller are connected to the outer wall of the transmission rod via a replacement assembly. A transition plate is rotatably connected to the rear end of the take-up roller. The outer wall of the transition plate is slidably connected to the inner wall of the rear end of the connecting frame. A motor is fixedly connected to the front end of the fixed frame, and a reciprocating screw is fixedly connected to the drive end of the motor. A straightening frame is connected to the outer wall of the reciprocating screw via a straightening assembly.

[0012] Furthermore, the replacement assembly includes a fixed worm gear fixedly connected to the bottom end of the outer wall of the transmission rod, and a sliding worm gear slidably connected to the top end of the outer wall of the transmission rod.

[0013] Furthermore, both the first and second take-up rollers are fixedly connected to a worm gear at their front ends, and the outer walls of the fixed worm and the sliding worm mesh with the outer diameter of the worm gear.

[0014] Furthermore, an electric hydraulic cylinder is fixedly connected to the front side of the top of the winch frame, and a moving platform is fixedly connected to the drive end of the electric hydraulic cylinder. The inner wall of the right end of the moving platform is rotatably connected to the outer wall of the front end of the winding roller, and the top end of the sliding worm is rotatably connected to the outer wall of the right end of the moving platform.

[0015] Furthermore, the correction assembly includes a slider sleeved on the outer wall of the reciprocating lead screw, and a deflection platform is fixedly connected to the outer wall of the slider.

[0016] Furthermore, a sliding rod is slidably connected to the bottom end of the deflection platform, and the outer wall of the sliding rod is fixedly connected to the inner wall of the fixed frame.

[0017] Furthermore, the deflection table has connecting blocks fixedly connected to both the front and rear sides of its top, and each connecting block has a return spring fixedly connected to one end of its opposite side. Each return spring has a pull block fixedly connected to one end of its opposite side, and the pull block has one end detachably connected to the front and rear ends of the correction frame.

[0018] Furthermore, both ends of the correction frame are rotatably connected to screws, and the outer walls of the screws are threaded with correction rings, the outer walls of the correction rings being slidably connected to the inner wall of the correction frame.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, after the old steel wire passes through the straightening ring and winds around the first winding roller, the first motor drives the transmission rod, which drives the first winding roller and the second winding roller to rotate relative to each other through the fixed worm and the sliding worm, respectively, so as to realize the synchronous discharge of the old steel wire and the new steel wire, and complete the rapid replacement. The electric hydraulic cylinder adjusts the wheel distance of the two rollers to adapt to different winding thicknesses. The reverse start of the first motor can switch the winding direction, realize bidirectional backup, significantly improve the rope changing efficiency and reduce manual intervention.

[0021] 2. In this invention, during wire winding / unwinding, motor two drives the reciprocating lead screw, which in turn moves the slider to reciprocate the deflection table. The wire entry / exit angle is dynamically adjusted via the straightening frame and straightening ring to ensure the wire is evenly wound around the outside of winding roller one or two, preventing center accumulation. After the straightening ring wears out, pulling the pull block allows for quick replacement of the straightening frame, and rotating the screw adjusts the position of the straightening ring, ensuring precise alignment with the winding roller. This significantly improves wire laying quality and extends the equipment's service life. Attached Figure Description

[0022] Figure 1 A perspective view of a double-drum wire rope replacement winch proposed in this utility model;

[0023] Figure 2 A half-sectional view of the deflection table of a double-drum wire rope replacement winch proposed in this utility model.

[0024] Figure 3A half-sectional view of the connecting frame of a double-drum wire rope replacement winch proposed in this utility model;

[0025] Figure 4 Half-sectional view of the moving platform of a double-drum wire rope changing winch proposed in this utility model;

[0026] Figure 5 A cross-sectional view of the slider of a double-drum wire rope replacement winch proposed in this utility model;

[0027] Figure 6 This is a half-sectional view of the straightening frame of a double-drum wire rope replacement winch proposed in this utility model.

[0028] Legend:

[0029] 1. Winch frame; 2. Fixed frame; 3. Connecting frame; 4. Motor 1; 5. Motor 2; 6. Reciprocating screw; 7. Slide bar; 8. Deflection table; 9. Electro-hydraulic cylinder; 10. Moving table; 11. Take-up roller 1; 12. Take-up roller 2; 13. Straightening frame; 14. Slider; 15. Screw; 16. Transmission rod; 17. Fixed worm; 18. Sliding worm; 19. Worm wheel; 20. Adapter plate; 21. Connecting block; 22. Pull block; 23. Straightening ring; 24. Return spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a double-drum wire rope replacement winch, comprising a winch frame 1, a fixed frame 2 fixedly connected to the left end of the winch frame 1, a connecting frame 3 fixedly connected to the right end of the winch frame 1, a motor 4 fixedly connected to the front end of the connecting frame 3, a transmission rod 16 fixedly connected to the drive end of the motor 4, a take-up roller 11 and a take-up roller 22 connected to the outer wall of the transmission rod 16 via a replacement assembly, a transition plate 20 rotatably connected to the rear end of the take-up roller 11, and the outer wall of the transition plate 20 slidably connected to the inner wall of the rear end of the connecting frame 3. The replacement assembly includes components located on the transmission rod. A fixed worm 17 is fixedly connected to the bottom of the outer wall of the transmission rod 16. A sliding worm 18 is slidably connected to the top of the outer wall of the transmission rod 16. Worm wheels 19 are fixedly connected to the front ends of both the first winding roller 11 and the second winding roller 12. The outer walls of the fixed worm 17 and the sliding worm 18 mesh with the outer diameter of the worm wheel 19. An electric hydraulic cylinder 9 is fixedly connected to the front side of the top of the winch frame 1. A moving platform 10 is fixedly connected to the drive end of the electric hydraulic cylinder 9. The inner wall of the right end of the moving platform 10 is rotatably connected to the outer wall of the front end of the first winding roller 11. The top end of the sliding worm 18 is rotatably connected to the outer wall of the right end of the moving platform 10.

[0032] Specifically: In the automated operation process of the wire rope replacement winch, after the end of the old wire rope passes through the straightening ring 23 and is wound around the outside of the take-up roller 11, the operator starts the motor 4 to drive the transmission system: the motor drives the transmission rod 16 to rotate axially through the coupling. The two ends of the transmission rod 16 are respectively connected to the fixed worm 17 and the sliding worm 18. The fixed worm 17 has a left-handed worm and the sliding worm 18 has a right-handed worm. These two worms act synchronously on the worm wheels 19 assembled at the ends of the take-up roller 11 and the take-up roller 22. Due to the opposite rotation direction design of the worm pair, the two take-up rollers generate opposite rotational motions - the take-up roller 11 winds up the old wire rope in a clockwise direction, while the take-up roller 22 releases the new wire rope in a counterclockwise direction, realizing the synchronous replacement operation of the old and new wire ropes;

[0033] During this process, the electric hydraulic cylinder 9 pushes the moving table 10 to move laterally along the guide rail according to the PLC control command, thereby driving the take-up roller 11 and its meshing sliding worm gear 18 to slide synchronously. This axial adjustment mechanism allows the wheel distance between the two take-up rollers to be steplessly adjusted within the range of 500-1200mm, ensuring that the equipment can adapt to the different drum thicknesses formed during the winding process of wire ropes of different diameters. The maximum allowable single-sided winding thickness is 150mm. After the wire rope of the predetermined length is replaced, the operator switches the rotation direction of motor 4 through the control panel. At this time, take-up roller 11 switches to release mode to discharge the old wire rope, while take-up roller 12 switches to winding mode to wind the new wire rope, forming a bidirectional reversible wire rope reserve system. This innovative design is particularly suitable for online wire rope replacement operations in scenarios such as mine hoisting systems and bridge cables, significantly improving rope replacement efficiency and reducing the intensity of manual intervention.

[0034] Reference Figure 2, Figure 5 and Figure 6 A motor 5 is fixedly connected to the front end of the fixed frame 2. A reciprocating screw 6 is fixedly connected to the drive end of the motor 5. A straightening frame 13 is connected to the outer wall of the reciprocating screw 6 through a straightening assembly. The straightening assembly includes a slider 14 sleeved on the outer wall of the reciprocating screw 6. A deflection platform 8 is fixedly connected to the outer wall of the slider 14. A slide rod 7 is slidably connected to the bottom end of the deflection platform 8. The outer wall of the slide rod 7 is fixedly connected to the inner wall of the fixed frame 2. Connecting blocks 21 are fixedly connected to both the front and rear sides of the top of the deflection platform 8. A return spring 24 is fixedly connected to one end of each connecting block 21. A pull block 22 is fixedly connected to one end of each return spring 24. The pull block 22 is detachably connected to the front and rear ends of the straightening frame 13. A screw 15 is rotatably connected to both the front and rear ends of the straightening frame 13. A straightening ring 23 is threadedly connected to the outer wall of each screw 15. The outer wall of the straightening ring 23 is slidably connected to the inner wall of the straightening frame 13.

[0035] Specifically: When the wire rope is being changed and the winch is being used for winding / unwinding operations, the operator simultaneously starts motor 2 5, which drives the reciprocating screw 6 to rotate in both directions via the gearbox. The rotation of the screw causes the slider 14 to move axially along the slide bar 7, which in turn pushes the deflection table 8 to deflect at an angle of ±15° relative to the winding roller 1 11 and the winding roller 2 12 via the hinge mechanism. The swing of the deflection table 8 is transmitted to the straightening ring 23 through the straightening frame 13 on its top. The straightening ring 23 has a tungsten carbide coating and an inner diameter of φ80mm. It dynamically adjusts the in-line / out-line angle of the wire rope to ensure that the wire is wound with an equal pitch of ±2mm on the surface of the winding roller 1 11 or the winding roller 2 12, effectively eliminating the risk of the wire shifting and accumulating towards the center of the roller in traditional winch operations.

[0036] When the wear on the working surface of the straightening ring 23 exceeds 1.5mm due to long-term friction, maintenance personnel can perform a quick replacement procedure: ① Pull the pull block 22 outward to compress the return spring 24 and release the buckle mechanism; ② Pull the worn straightening frame 13 horizontally out of the connecting block 21; ③ Reverse the operation to install the new straightening frame 13. In addition, by rotating the adjusting screw 15, the straightening ring 23 can be driven to move laterally along the guide rail by ±50mm. With the help of the laser alignment instrument, it can achieve ±0.5mm level alignment and calibration with the center line of the roller surface of take-up roller 11 and take-up roller 22. This composite adjustment system is particularly suitable for handling various steel wire ropes with diameters of φ16-φ64mm. It has shown a significant effect on improving the quality of wire laying in the rope replacement operation of equipment such as port cranes, mine hoists and overhead personnel carriers.

[0037] Working principle: When the old steel wire passes through the straightening ring 23 and winds around the outside of the take-up roller 11, the motor 4 is started, driving the transmission rod 16 to rotate. This causes the fixed worm 17 and the sliding worm 18 connected to the transmission rod 16 to drive the worm wheels 19 connected to the take-up roller 11 and the take-up roller 22, respectively. Since the worm threads of the fixed worm 17 and the sliding worm 18 are opposite, the take-up roller 11 and the take-up roller 22 rotate relative to each other, thus allowing the take-up roller 11 to wind the old steel wire. During the winding process, the second winding roller 12 discharges new steel wire, enabling the device to quickly replace the old steel wire with the new one. When the electric hydraulic cylinder 9 is activated, it drives the moving table 10 to move the first winding roller 11 and the sliding worm gear 18. The wheelbase between the first winding roller 11 and the second winding roller 12 can be adjusted to facilitate adjustment based on the winding thickness between the two. After the first motor 4 is activated in the reverse direction, the old steel wire wound on the first winding roller 11 can be discharged, and new steel wire can be wound again on the second winding roller 12 for later use.

[0038] During the winding and unwinding of the steel wire, motor 25 can be started to drive the reciprocating screw 6 to rotate. The reciprocating screw 6 drives the slider 14 to transmit power to the deflection table 8, causing the deflection table 8 to reciprocate outside the slider 7. This allows the straightening frame 13 set at the deflection table 8 to change the fixed angle of the steel wire's entry or exit cut through the straightening ring 23, thereby ensuring that the steel wire is evenly wound around the outside of the winding roller 11 or the winding roller 22, preventing the steel wire from concentrating around the center of the winding roller 11 during winding. Furthermore, due to the friction generated by the steel wire during winding or unwinding, the outer side of the straightening ring 23 is worn. Pulling the pull block 22 can cause the return spring 24 to retract and remove the straightening frame 13 from the connecting block 21, thereby replacing the straightening frame 13. In reverse operation, a new straightening frame 13 can be installed at the connecting block 21. When the screw 15 is rotated, the straightening ring 23 can be moved to facilitate adjustment of the position of the straightening ring 23 to align with the outer side of the take-up roller 11 and the take-up roller 22.

[0039] The accompanying drawings are merely illustrative diagrams for understanding purposes and do not represent actual dimensions, but they do not affect those skilled in the art's understanding of the principles and effects of this invention.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-drum wire rope changing winch, comprising a winch frame (1), characterized in that: The winch frame (1) is fixedly connected to a fixed frame (2) at the left end and a connecting frame (3) at the right end. The connecting frame (3) is fixedly connected to a motor (4) at the front end. The driving end of the motor (4) is fixedly connected to a transmission rod (16). The outer wall of the transmission rod (16) is connected to a take-up roller (11) and a take-up roller (12) via a replacement assembly. The rear end of the take-up roller (11) is rotatably connected to a transition plate (20). The outer wall of the transition plate (20) is slidably connected to the inner wall of the rear end of the connecting frame (3). The fixed frame (2) is fixedly connected to a motor (5) at the front end. The driving end of the motor (5) is fixedly connected to a reciprocating screw (6). The outer wall of the reciprocating screw (6) is connected to a straightening frame (13) via a straightening assembly.

2. The double-drum wire rope replacement winch according to claim 1, characterized in that: The replacement assembly includes a fixed worm gear (17) fixedly connected to the bottom of the outer wall of the transmission rod (16), and a sliding worm gear (18) slidably connected to the top of the outer wall of the transmission rod (16).

3. The double-drum wire rope replacement winch according to claim 2, characterized in that: The front ends of both take-up roller 1 (11) and take-up roller 2 (12) are fixedly connected to worm gears (19), and the outer walls of the fixed worm (17) and the sliding worm (18) mesh with the outer diameter of the worm gears (19).

4. A double-drum wire rope replacement winch according to claim 2, characterized in that: An electric hydraulic cylinder (9) is fixedly connected to the front of the top of the winch frame (1). A moving platform (10) is fixedly connected to the driving end of the electric hydraulic cylinder (9). The inner wall of the right end of the moving platform (10) is rotatably connected to the outer wall of the front end of the take-up roller (11). The top of the sliding worm (18) is rotatably connected to the outer wall of the right end of the moving platform (10).

5. A double-drum wire rope replacement winch according to claim 1, characterized in that: The correction assembly includes a slider (14) sleeved on the outer wall of the reciprocating lead screw (6), and a deflection platform (8) is fixedly connected to the outer wall of the slider (14).

6. A double-drum wire rope changing winch according to claim 5, characterized in that: The bottom end of the deflection platform (8) is slidably connected to a slide rod (7), and the outer wall of the slide rod (7) is fixedly connected to the inner wall of the fixing frame (2).

7. A double-drum wire rope changing winch according to claim 5, characterized in that: The deflection table (8) has connecting blocks (21) fixedly connected to both the front and rear sides of the top. Each connecting block (21) has a return spring (24) fixedly connected to one end of each opposite end. Each return spring (24) has a pull block (22) fixedly connected to one end of each opposite end. The pull block (22) is detachably connected to the front and rear ends of the correction frame (13) at one end.

8. A double-drum wire rope changing winch according to claim 1, characterized in that: The front and rear ends of the correction frame (13) are rotatably connected with screws (15), and the outer walls of the screws (15) are threaded with correction rings (23). The outer walls of the correction rings (23) are slidably connected to the inner walls of the correction frame (13).

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