A guided self-cleaning ship winch

Abstract

The present invention discloses a guided self-cleaning ship winch, which belongs to the technical field of ship winches, and includes a base, one end of which is fixed with a first support frame, and the output shaft of the motor is connected to one end of a connecting shaft through a pulley mechanism; and further includes: one end of the connecting shaft away from the first support frame is connected to the end of a reciprocating screw rod through another pulley mechanism, and the outer side of the reciprocating screw rod is sleeved with a movable cylinder; a cleaning mechanism is arranged between the movable cylinder and the sleeve, and the cleaning mechanism is used for cleaning the steel wire rope when it is wound, and a limiting assembly is installed above the winding roller. The guided self-cleaning ship winch is provided with a cleaning structure during the winding process of the steel wire rope, which can remove the mud and other impurities adhered to the surface of the steel wire rope, and has a certain removal effect on seawater, reducing the damage caused to the steel wire rope, and can limit the steel wire rope after winding to avoid the phenomenon of loosening and slipping.

Description

Technical Field

[0001] The invention relates to the technical field of ship winches, in particular to a guided self-cleaning ship winch. Background Art

[0002] A ship winch is a small and light lifting device installed on a ship. It is one of the important equipment of a ship. The ship winch will come into contact with mud or seawater during use. In order to extend the service life of the wire rope and the smoothness of winding and extending, the wire rope needs to be cleaned regularly. For example, a ship mooring winch with a publication number of CN116692711A includes a base for fixing the mooring winch; a bracket, the bracket is fixedly mounted on the base; a winding shaft, the winding shaft is rotatably mounted in the bracket; without adding an additional frequency converter, using the existing frequency converter, combined with a conversion switch, a single mooring winch can be powered by two independent frequency converters, realizing the requirement of redundant power supply for the mooring winch, eliminating the redundancy in the traditional sense, and a single mooring winch is powered by different frequency converters through the conversion switch. The redundancy reduces the number of frequency converters and greatly saves equipment costs;

[0003] For example, the publication number CN113148885A is a kind of marine winch and ship, including: a mounting base; a winch box, the winch box is fixedly mounted on one side of the upper surface of the mounting base, and a transmission mechanism is arranged in the winch box; a drive motor, the drive motor is mounted on one side of the winch box, and the output shaft of the drive motor is connected to the transmission mechanism; a rotating shaft, the rotating shaft is rotatably mounted on one side of the winch box, and one end of the transmission shaft is connected to the transmission mechanism; a main drum, the main drum is fixedly sleeved on the rotating shaft, and a ship pulling rope is wound on the main drum; a side bracket, the side bracket is fixedly mounted on the other side of the upper surface of the mounting base; a bearing seat, the bearing seat is fixedly mounted on the upper end of the side bracket, and the other end of the rotating shaft is rotatably sleeved in the bearing seat. It is convenient to lengthen and shorten the ship pulling rope, and is conducive to accommodating longer ship pulling ropes. However, the above-mentioned ship winch still has the following disadvantages during actual use:

[0004] 1. Most of the existing ship winches do not have a structure to clean the wire rope during the process of winding the wire rope, which causes the wire rope to adhere to mud and other impurities, as well as a large amount of seawater, which easily causes the wire rope to rust and also affects the subsequent smoothness of extending and winding the wire rope;

[0005] 2. There is no structure to limit the position of the wire rope after it is wound up. When the wound wire rope is pulled by a reverse force, it is easy to become loose and slip, thereby affecting the efficiency of winding the wire rope.

[0006] In view of the above problems, it is urgent to carry out innovative design based on the original ship winch. Summary of the invention

[0007] The object of the present invention is to provide a guided self-cleaning ship winch to solve the problem raised in the above background technology that most of the existing ship winches do not have a structure for cleaning the wire rope during the wire rope winding process, and lack a structure for limiting the wire rope after the wire rope is wound.

[0008] To achieve the above object, the present invention provides the following technical solution: a guided self-cleaning ship winch, comprising a base, a first support frame is fixed to one end of the base, and a motor is installed on the side of the first support frame by bolts, the output shaft of the motor is connected to one end of a connecting shaft by a pulley mechanism, and a winding roller is fixed to the other end of the connecting shaft;

[0009] It also includes: one end of the connecting shaft away from the first support frame is connected to the end of the reciprocating screw rod through another pulley mechanism, and the reciprocating screw rod bearing passes through the interior of the second support frame, and the second support frame is fixed to the other end of the base, the outer side of the reciprocating screw rod is sleeved with a movable cylinder, and the top of the movable cylinder passes through a movable rod, a sleeve is fixed to the top of the movable rod, and the interior of the sleeve is used to pass a steel wire rope;

[0010] A cleaning mechanism is arranged between the movable cylinder and the sleeve, and is used for cleaning the steel wire rope when it is wound up. A limiting assembly is installed above the winding roller, and the limiting assembly is used for preventing the steel wire rope from slipping when it is wound up.

[0011] Preferably, the movable cylinder and the reciprocating screw are threadedly connected, two thread grooves in opposite directions are opened on the outer side of the reciprocating screw, and the bottom of the movable cylinder and the upper end surface of the base slide in close contact, and the movable cylinder and the movable rod are slidably connected, and a spring for resetting the sleeve is wound around the outer side of the movable rod. At the same time, the sleeve is inclined, and when the reciprocating screw rotates, it can drive the movable cylinder and the sleeve to move horizontally through the threaded transmission with the movable cylinder.

[0012] Preferably, the cleaning mechanism includes a fixing bar fixed to the side of the second support frame, and guide blocks are fixed at equal intervals on the upper end surface of the fixing bar, and the cross-section of the guide blocks is serrated, so that when the sleeve moves, it can drive the fixed block to contact the guide block, and the push of the guide block can realize frequent lifting and lowering when the sleeve moves.

[0013] Preferably, a fixed block is provided at the lower part of the sleeve, and the lowest point of the fixed block is lower than the highest point of the guide block. A piston block is fixed at the bottom of the movable rod. When the sleeve is raised or lowered, the movable rod is driven to slide in the movable cylinder, thereby driving the piston block to rise and fall synchronously and contact the airbag.

[0014] Preferably, an airbag is adhered to the inner top surface and the inner bottom surface of the sleeve, and the airbag is an annular structure, and the inner diameter of the airbag is smaller than the outer diameter of the piston block. At the same time, a one-way air inlet valve is provided on one side of the airbag, and the other side of the airbag and the lower end of the air pipe are connected to each other. When the sleeve is raised or lowered, the steel wire rope can be driven to vibrate, which plays a cleaning role, and when the airbag is squeezed, the gas inside it can be transmitted to the fixed cavity through the air pipe.

[0015] Preferably, the upper end of the air pipe is fixed at a higher point of the casing, and the airbag is interconnected with the interior of the fixed cavity through the air pipe, and the fixed cavity is opened inside the casing. At the same time, air outlet holes are reserved at equal angles on the inner wall of the casing, and a cleaning brush is evenly attached to the inner wall of the casing. The gas entering the fixed cavity can eventually be discharged from the air outlet and blown onto the wire rope for further cleaning. In addition, the brushing of the cleaning brush can achieve efficient cleaning.

[0016] Preferably, the limiting assembly includes a limiting plate arranged above the winding roller, and the cross-section of the limiting plate is an arc-shaped structure, and inverted "L"-shaped support rods are fixed at both ends of the limiting plate. At the same time, the limiting plate forms a relative lifting structure through the support rod and the inner side of the first support frame. When the thickness of the wire rope wound on the winding roller gradually increases, the limiting plate can be pushed to rise, and the wound wire rope can be limited by the limiting plate.

[0017] Preferably, the inner sliding part of the limit plate passes through the limit rod, and the limit rods are arranged at equal intervals on the limit plate, and a tension spring is wound around the outer side of the limit rod. At the same time, a fixing hole is reserved on the limit plate outside the limit rod, and the bottom of the limit rod is a conical structure. When the limit rod slides down on the limit plate, it can contact the wire rope, which has a limiting effect on the reverse slippage of the wire rope after being wound up.

[0018] Preferably, a movable bar is fixed to the top of the limit rod, and both ends of the movable bar are in contact with the inner side of the first support frame, and the lower end surfaces of both ends of the movable bar are fit connected with the top of the support tube. When the support tube is in contact with the movable bar, the limit rod is on the inner side of the limit plate, and after the support tube is separated from the movable bar, the limit rod can slide down due to the elasticity of the tension spring.

[0019] Preferably, a connecting rod is interactively penetrated through the bottom of the support tube, and a first magnetic block is fixed to the side of the support tube, and the magnetic properties of the first magnetic block and the second magnetic block are opposite. At the same time, the second magnetic block is fixed to the two ends of the limit plate, and a sleeve block is fixed to the bottom of the connecting rod, and the sleeve block is sleeved on the outside of the connecting shaft. At the same time, the sleeve block and the connecting shaft are connected by a one-way bearing, and through the adsorption of the two magnets, the support tube can be driven to rise and fall synchronously when the limit plate is raised and lowered, and the support tube can be driven to slide on the connecting rod.

[0020] Compared with the prior art, the invention has the following beneficial effects: the guided self-cleaning ship winch is provided with a cleaning structure during the winding process of the wire rope, which can remove the mud and other impurities adhering to the surface of the wire rope, and has a certain removal effect on seawater, reducing the damage to the wire rope, and can limit the position of the wire rope after winding to avoid the phenomenon of loosening and slipping. The specific contents are as follows:

[0021] 1. Through the threaded transmission of the movable cylinder and the reciprocating screw rod, the movable cylinder and the casing can be driven to move back and forth synchronously horizontally, thereby driving the fixed block to contact the guide block. Through the contact between the two and the elasticity of the spring, the casing is driven to rise and fall frequently, and the wire rope is driven to shake, so that a large amount of sand, impurities and liquids adhered to its surface can fall off, which plays a role in preliminary cleaning;

[0022] Furthermore, when the casing is raised or lowered, the piston block can be driven to rise or fall in the movable cylinder by the movable rod, and the two air bags are squeezed. After the air bags are squeezed, the gas inside them can be transmitted to the fixed cavity through the air pipe, and then discharged from the air outlet to blow onto the wire rope. In addition, when the wire rope passes through, it contacts the cleaning brush, which can further clean the wire rope, fully remove the impurities and moisture adhering to it, and reduce the damage to the wire rope after long-term use.

[0023] 2. After the steel wire rope is wound up, it can play a limiting role by contacting with the limit plate, and as the thickness of the wound steel wire rope gradually increases, it can push the limit plate to slide on the first support frame, which will not affect the limit of the steel wire rope. When the limit plate rises, the second magnetic block and the first magnetic block can be adsorbed to drive the support cylinder to rise synchronously, so that the support cylinder can slide on the connecting rod. Since the sleeve block and the connecting shaft are connected by a one-way bearing, the sleeve block, the connecting rod and the support cylinder can remain in a vertical state when the connecting shaft rotates;

[0024] Furthermore, when the wire rope is pulled by an external force, it drives the winding roller and the connecting shaft to rotate in opposite directions. At this time, the connecting shaft can drive the connecting rod and the supporting cylinder to rotate synchronously through the sleeve block, drive the two magnetic blocks to separate, and at the same time release the support of the supporting cylinder for the movable bar. In this way, the elasticity of the spring can drive the limit rod to slide down on the limit plate, lock the wire rope to prevent it from further extending. When the wire rope needs to be extended, manually pull the movable bar upwards to drive the limit rod to separate from the wire rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the fixing bar structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the guide block structure of the present invention;

[0028] Figure 4 It is a schematic diagram of the cross-sectional structure of the movable cylinder of the present invention;

[0029] Figure 5 It is a schematic diagram of the cross-sectional structure of the casing of the present invention;

[0030] Figure 6 It is a schematic diagram of the winding roller structure of the present invention;

[0031] Figure 7 It is a schematic diagram of the cross-sectional structure of the limiting plate of the present invention;

[0032] Figure 8 For the present invention Figure 7 The enlarged structural diagram at A in the middle;

[0033] Fig. 9 This is a schematic diagram of the block structure of the present invention;

[0034] Fig.10 For the present invention Fig. 9 The enlarged structural diagram at B in the middle;

[0035] Fig.11 It is a schematic diagram of the second magnetic block structure of the present invention.

[0036] In the figure: 1. base; 2. first support frame; 3. motor; 4. connecting shaft; 5. winding roller; 6. reciprocating screw rod; 7. second support frame; 8. movable cylinder; 9. movable rod; 10. sleeve; 11. fixing strip; 12. guide block; 13. fixing block; 14. piston block; 15. air bag; 16. air pipe; 17. fixing cavity; 18. air outlet; 19. cleaning brush; 20. limit plate; 21. support rod; 22. limit rod; 23. fixing hole; 24. movable strip; 25. support cylinder; 26. first magnetic block; 27. second magnetic block; 28. connecting rod; 29. ​​sleeve block. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-Figure 11 , the present invention provides the following technical solutions:

[0039] Embodiment 1: In order to solve the problems existing in the prior art, this embodiment adopts the following technical scheme: a guided self-cleaning ship winch, comprising a base 1, a first support frame 2 is fixed to one end of the base 1, and a motor 3 is installed on the side of the first support frame 2 by bolts, the output shaft of the motor 3 is connected to one end of a connecting shaft 4 through a pulley mechanism, and a winding roller 5 is fixed to the other end of the connecting shaft 4; it also includes: the end of the connecting shaft 4 away from the first support frame 2 is connected to the end of a reciprocating screw rod 6 through another pulley mechanism, and the bearing of the reciprocating screw rod 6 passes through the interior of a second support frame 7, and the second support frame 7 is fixed to the other end of the base 1, the outer side of the reciprocating screw rod 6 is sleeved with a movable cylinder 8, and the top of the movable cylinder 8 passes through a movable cylinder 8. A movable rod 9, a sleeve 10 is fixed on the top of the movable rod 9, and the interior of the sleeve 10 is used to pass the wire rope; a cleaning mechanism is arranged between the movable cylinder 8 and the sleeve 10, and the cleaning mechanism is used to clean the wire rope when it is wound up. A limiting component is installed above the winding roller 5, and the limiting component is used to prevent the wire rope from slipping when it is wound up; when the motor 3 is driven in the forward direction, it drives the winding roller 5 to rotate to realize the winding of the wire rope, and when the motor 3 is driven in the reverse direction, it drives the winding roller 5 to realize the extension of the wire rope. When the wire rope is wound up, the wire rope can pass through the sleeve 10, which has a cleaning effect on impurities adhered to the wire rope, and after the wire rope is wound on the winding roller 5, a limiting component is provided to limit it, so as to avoid slipping due to tension after winding, thereby ensuring stability after winding.

[0040] Most of the existing ship winches do not have a structure to clean the wire rope during the process of winding the wire rope, which causes the wire rope to adhere to mud and other impurities, as well as a large amount of seawater, which easily causes the wire rope to rust and also affects the subsequent smoothness of extending and winding the wire rope. Figure 1-Figure 5As shown, the movable cylinder 8 and the reciprocating screw rod 6 are threadedly connected, and two thread grooves in opposite directions are opened on the outer side of the reciprocating screw rod 6, and the bottom of the movable cylinder 8 and the upper end surface of the base 1 are fitted and slid, and the movable cylinder 8 and the movable rod 9 are slidably connected, and a spring for resetting the sleeve 10 is wound around the outer side of the movable rod 9, and the sleeve 10 is inclined; the cleaning mechanism includes a fixing bar 11 fixed to the side of the second support frame 7, and the upper end surface of the fixing bar 11 is fixed with guide blocks 12 at equal intervals, and the cross-section of the guide block 12 is serrated; a fixing block 13 is arranged at the lower part of the sleeve 10, and the lowest point of the fixing block 13 is lower than the highest point of the guide block 12, and the movable cylinder 8 and the movable rod 9 are slidably connected. A piston block 14 is fixed to the bottom of the moving rod 9; an airbag 15 is pasted on the inner top surface and the inner bottom surface of the sleeve 10, and the airbag 15 is an annular structure, and the inner diameter of the airbag 15 is smaller than the outer diameter of the piston block 14, and a one-way air intake valve is provided on one side of the airbag 15, and the other side of the airbag 15 and the lower end of the air pipe 16 are interconnected; the upper end of the air pipe 16 is fixed to a higher point of the sleeve 10, and the airbag 15 is interconnected with the inside of the fixed cavity 17 through the air pipe 16, and the fixed cavity 17 is opened inside the sleeve 10, and the inner wall of the sleeve 10 is provided with air outlet holes 18 at equal angles, and the inner wall of the sleeve 10 is evenly pasted with a cleaning brush 19.

[0041] The steel wire rope is wound onto the winding roller 5 by the drive of the motor 3. When the connecting shaft 4 rotates, the reciprocating screw rod 6 can be driven to rotate synchronously through the pulley mechanism. In this way, the movable cylinder 8 can be driven to move back and forth at the edge of the base 1 through the threaded transmission of the reciprocating screw rod 6 and the movable cylinder 8, so that the steel wire rope can be driven to be wound around different positions of the winding roller 5. Since the steel wire rope passes through the inside of the casing 10 when it is extended or wound, and the casing 10 moves back and forth horizontally with the movable cylinder 8, the fixed block 13 can be driven to contact the guide block 12. The casing 10 can be driven to rise when it moves through the guidance of the guide block 12, and then the casing 10 can be driven to descend through the resilience of the spring. In this way, the frequent lifting and lowering of the casing 10 during the movement can drive the steel wire rope to shake , so that a large amount of mud, impurities and liquid adhering to the surface of the wire rope can fall off during the winding process, which plays a role in preliminary cleaning. Then, when the sleeve 10 is lifted or lowered, the piston block 14 can be driven to lift or lower in the movable cylinder 8 through the movable rod 9, and the two air bags 15 are squeezed. After the air bags 15 are squeezed, the gas inside them can be transmitted to the fixed cavity 17 through the air pipe 16, and then discharged from the air outlet 18 to blow onto the wire rope passing through the sleeve 10. In addition, the contact between the wire rope and the cleaning brush 19 when passing through can further clean the wire rope, fully remove the impurities and moisture adhering to it, and reduce the damage to the wire rope after long-term use. In addition, the sleeve 10 is arranged at an angle, which facilitates the impurities to slide quickly to the ground during the cleaning process.

[0042] Embodiment 2: The existing ship winch lacks a structure to limit the position of the wire rope after winding it. When the wound wire rope is pulled by a reverse force, it is easy to become loose and slip, thereby affecting the efficiency of winding the wire rope. Therefore, this embodiment adopts the following technical solutions, such as Figure 1 and Figure 6-Figure 11 As shown, the limiting assembly includes a limiting plate 20 arranged above the winding roller 5, and the cross-section of the limiting plate 20 is an arc-shaped structure, and inverted "L"-shaped support rods 21 are fixed at both ends of the limiting plate 20, and the limiting plate 20 forms a relative lifting structure through the support rod 21 and the inner side of the first support frame 2; the internal sliding of the limiting plate 20 penetrates the limiting rod 22, and the limiting rod 22 is arranged at equal intervals on the limiting plate 20, and the outer side of the limiting rod 22 is wound with a stretched spring, and a fixing hole 23 is reserved on the limiting plate 20 outside the limiting rod 22, and the bottom of the limiting rod 22 is a conical structure; A movable bar 24 is fixed to the top of the limiting rod 22, and both ends of the movable bar 24 are in contact with the inner side of the first support frame 2, and the lower end surfaces of both ends of the movable bar 24 are fit connected with the top of the support tube 25; a connecting rod 28 is interactively penetrated through the bottom of the support tube 25, and a first magnetic block 26 is fixed to the side of the support tube 25, and the magnetic properties of the first magnetic block 26 and the second magnetic block 27 are opposite, and the second magnetic block 27 is fixed to the two ends of the limiting plate 20, and a sleeve block 29 is fixed to the bottom of the connecting rod 28, and the sleeve block 29 is sleeved on the outer side of the connecting shaft 4, and the sleeve block 29 and the connecting shaft 4 are connected by a one-way bearing.

[0043] After the wire rope is wound on the winding roller 5, the surface of the wire rope can contact the inner side of the limit plate 20, and the limit plate 20 can play a limiting role through its own weight contacting with the wire rope, and as the thickness of the wound wire rope gradually increases, the limit plate 20 can be pushed to slide on the first support frame 2 without affecting the limiting of the wire rope, thereby preventing the wire rope from loosening after winding. When the limit plate 20 is raised, the second magnetic block 27 and the first magnetic block 26 can be adsorbed to drive the support cylinder 25 to rise synchronously, so that the support cylinder 25 can slide on the connecting rod 28, which will not affect the supporting state of the support cylinder 25 on the movable bar 24. Since the sleeve block 29 is connected to the connecting shaft 4 through a one-way bearing, and the support cylinder 25 contacts the limit plate 20 through the magnetic block, the sleeve block 29, the connecting rod 28 and the support cylinder 25 can maintain a vertical state when the connecting shaft 4 rotates. When the wire rope is pulled by an external force, the winding roller 5 and the connecting shaft 4 are driven to rotate in the opposite direction. At this time, the connecting shaft 4 can drive the connecting rod 28 and the supporting cylinder 25 to rotate synchronously through the sleeve block 29, driving the two magnetic blocks to separate and at the same time releasing the support of the supporting cylinder 25 on the movable bar 24. In this way, the limit rod 22 can be driven to slide up and down on the limit plate 20 through the elasticity of the spring. After the limit rod 22 is lowered, it can contact the wire rope and play a further limiting role. The tapered bottom of the limit rod 22 can prevent the wire rope from being pulled and extended, thereby ensuring that the wire rope after winding is more stable. When the wire rope needs to be extended, the movable bar 24 is manually pulled upward to drive the limit rod 22 to separate from the wire rope, which will not affect the extension of the wire rope. The height of the support rod 21 is high, and it will not affect the position of the supporting cylinder 25. Then the supporting cylinder 25 can be rotated to the vertical state again to support the movable bar 24.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A guided self-cleaning ship winch, comprising a base, a first support frame is fixed to one end of the base, a motor is installed on the side of the first support frame by bolts, an output shaft of the motor is connected to one end of a connecting shaft by a pulley mechanism, and a winding roller is fixed to the other end of the connecting shaft; It is characterized in that Also includes: The end of the connecting shaft away from the first support frame is connected to each other through another pulley mechanism and the end of the reciprocating screw rod, and the reciprocating screw rod bearing passes through the interior of the second support frame, and the second support frame is fixed to the other end of the base, the outer side of the reciprocating screw rod is sleeved with a movable cylinder, and the top of the movable cylinder passes through a movable rod, a sleeve is fixed on the top of the movable rod, and the interior of the sleeve is used to pass a steel wire rope; A cleaning mechanism is arranged between the movable cylinder and the sleeve, and is used to clean the wire rope when it is wound up. A limit assembly is installed above the winding roller, and the limit assembly is used to prevent the wire rope from slipping when it is wound up; The limiting assembly includes a limiting plate arranged above the winding roller, and the cross section of the limiting plate is an arc-shaped structure, and inverted "L"-shaped support rods are fixed at both ends of the limiting plate, and the limiting plate forms a relative lifting structure through the support rod and the inner side of the first support frame; The inner part of the limit plate slides through the limit rod, and the limit rod is arranged on the limit plate at equal intervals, and a stretched spring is wound around the outer side of the limit rod, and a fixing hole is reserved on the limit plate outside the limit rod, and the bottom of the limit rod is a conical structure; A movable bar is fixed to the top of the limit rod, and both ends of the movable bar are in contact with the inner side of the first support frame, and the lower end surfaces of both ends of the movable bar are in close contact with the top of the support tube; A connecting rod is interactively passed through the bottom of the support tube, and a first magnetic block is fixed on the side of the support tube, and the magnetic properties of the first magnetic block and the second magnetic block are opposite. At the same time, the second magnetic block is fixed to the two ends of the limit plate, and a sleeve block is fixed to the bottom of the connecting rod, and the sleeve block is sleeved on the outside of the connecting shaft. At the same time, the sleeve block and the connecting shaft are connected by a one-way bearing.

2. A guided self-cleaning ship winch according to claim 1, characterized in that: The movable cylinder and the reciprocating screw are threadedly connected, and two thread grooves in opposite directions are opened on the outside of the reciprocating screw. The bottom of the movable cylinder and the upper end surface of the base slide in fit, and the movable cylinder and the movable rod are slidably connected. A spring for resetting the sleeve is wound around the outside of the movable rod, and the sleeve is inclined.

3. A guided self-cleaning ship winch according to claim 1, characterized in that: The cleaning mechanism comprises a fixing bar fixed to the side of the second support frame, and guide blocks are fixed to the upper end surface of the fixing bar at equal intervals, and the cross section of the guide blocks is sawtooth-shaped.

4. A guided self-cleaning ship winch according to claim 3, characterized in that: A fixing block is arranged at the lower part of the sleeve, and the lowest point of the fixing block is lower than the highest point of the guide block. A piston block is fixed at the bottom of the movable rod.

5. A guided self-cleaning ship winch according to claim 4, characterized in that: The inner top surface and the inner bottom surface of the sleeve are both pasted with airbags, and the airbags are annular structures, and the inner diameter of the airbags is smaller than the outer diameter of the piston block. At the same time, a one-way air intake valve is arranged on one side of the airbag, and the other side of the airbag is connected to the lower end of the air pipe.

6. A guided self-cleaning ship winch according to claim 5, characterized in that: The upper end of the air pipe is fixed at a higher point of the sleeve, and the airbag is connected to the inside of the fixed cavity through the air pipe, and the fixed cavity is opened inside the sleeve. At the same time, the inner wall of the sleeve is provided with air outlet holes at equal angles, and a cleaning brush is evenly pasted on the inner wall of the sleeve.

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