Mooring rope anti-loosening device

Abstract

The utility model discloses a cable anti-loosening device which comprises a supporting frame, a pulley rotationally arranged in the supporting frame, a limiting device used for limiting the swing range of a cable in the movement process of the cable and comprising two side limiting arms, a disc plane of which the axis direction of the side limiting arms is parallel to the pulley, and a cable pressing device, a fan-shaped action part matched with the circular arc of the outer edge of the pulley is arranged, the action part controllably moves close to or far away from the pulley, and the action part and a pulley groove of the pulley form arc-shaped clamping for the cable; the rope pressing device is arranged to always keep a certain elasticity to be pressed on the mooring rope; the device effectively solves the problem that when ropes in a cabin are conveyed to an upper deck, the ropes are prone to being stacked in the cabin, and therefore the ropes are disordered, manpower can be saved, the automation level is improved, and the safety coefficient of personnel is improved; the clamping force formed between the rope pressing device and the pulley on the cable can be controlled through telescopic movement of the hydraulic cylinder.

Description

Technical Field

[0001] This utility model relates to the field of marine equipment, specifically to a cable anti-loosening device. Background Technology

[0002] A marine winch is a lifting device installed on a ship, widely used in various shipboard operations such as anchoring, mooring, towing, and cargo lifting. Based on their drive method and structural characteristics, marine winches can be classified into electric winches, hydraulic winches, and pneumatic winches. Marine winches lift or pull heavy objects by winding steel wire ropes or chains onto a drum. Their basic working principle involves using a motor or other power source to provide torque, causing the drum to rotate, thereby winding or unwinding the steel wire rope or chain to raise or lower the load.

[0003] When ropes are transported from inside the cabin to the upper deck, they tend to accumulate inside, leading to tangling. A rope anti-slackening device is used to maintain a certain tension on the ropes during use, preventing uneven tension during release or retrieval, which can cause the ropes to become tangled when the winch winds or unwinds the rope.

[0004] Traditional ship equipment has a low degree of automation, requires a large amount of human resources, and carries high operational risks. With the development of science and technology, automation of ship equipment plays an important role in improving its working efficiency and reducing safety risks.

[0005] Chinese invention patent CN105836647A discloses a wire rope anti-loosening device, which uses rolling bearings to clamp friction plates to transmit the torque of the wire rope wheel to the wire rope, so that the wire rope maintains a certain tension. However, because the wire rope has high rigidity, clamping with friction plates can provide a large friction force to transmit the torque of the wire rope wheel to the wire rope. But the effect is limited for cables with poor rigidity.

[0006] Chinese invention patent CN103466489A discloses a rope feeding device. By pressing and rotating two pairs of rollers, the cable between the rope feeding device and the winch has a certain tension. However, this device mainly provides friction through the pressing of two pairs of rollers. The contact surface is small and easily worn, affecting the service life. In addition, the rope exit angle is small and it is not suitable for occasions with a large rope exit angle.

[0007] In view of the above, it is necessary to propose a cable anti-loosening device to solve the above problems. Utility Model Content

[0008] The purpose of this utility model is to solve the above-mentioned technical problems and provide a cable anti-loosening device.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: a cable anti-loosening device, comprising a support frame, a pulley rotatably disposed within the support frame, and a limiting device disposed at the inlet end and / or outlet end of the anti-loosening device, thereby limiting the swing range of the cable during movement. The limiting device includes two side limiting arms, the axial direction of which is parallel to the disc plane of the pulley, and the two side limiting arms are symmetrically disposed on both sides of the groove of the pulley.

[0010] The rope pressing device is equipped with a fan-shaped actuating part that matches the outer arc of the pulley. The actuating part can controllably move closer to or away from the pulley and forms an arc-shaped clamping of the cable with the pulley groove. The rope pressing device is arranged to always maintain a certain elasticity and press the cable.

[0011] The support frame serves as the mounting base for the limiting device and the rope pressing device. The overall anti-loosening device is positioned on the ship through the support frame.

[0012] Furthermore, the support frame includes a first side plate, a second side plate, and a bottom plate. The first side plate and the second side plate are vertically arranged on the bottom plate. The first side plate and the second side plate are arranged parallel to each other and form a space for setting pulleys between them. The top of the first side plate and the second side plate is provided with a hanging plate.

[0013] Furthermore, the two limiting arms of the limiting device are rotatably connected to the support frame, which includes a roller body, a roller shaft, and a roller shaft fixing plate. The roller shaft fixing plate is horizontally fixed between the first side plate and the second side plate. The roller shaft fixing plate is parallel to the bottom plate so that the two form an installation space for the limiting arms. The two ends of the roller shaft are respectively set on the roller shaft fixing plate and the bottom plate, and the roller body is rotatably sleeved on the roller shaft.

[0014] Furthermore, the first side plate and the second side plate are respectively provided with bearing seats, and the two bearing seats are coaxially arranged. A main shaft is provided in the two bearing seats, and a pulley is provided on the main shaft.

[0015] Furthermore, a motor mount is provided on one side plate, and a motor body is located inside the motor mount. The output end of the motor body is connected to the main shaft.

[0016] Furthermore, the bearing housing is provided with a lubricating oil filling pipe, one end of which is connected to the bearing body, and the other end forms a filling port on the surface of the bearing housing. The bearing housing is provided with an oil seal skeleton sleeved on the spindle.

[0017] Furthermore, the actuating part includes an arc-shaped contact part, an arc-shaped base part, and a mounting base. The mounting base is disposed on a base plate between two side plates. The mounting base has an inclined base surface facing the pulley. An arc-shaped base part is provided on the inclined base surface. An arc-shaped contact part is provided on the inner side of the arc-shaped base part. The inner side of the arc-shaped contact part forms a side surface that cooperates with the pulley to squeeze the cable. An elastic element is provided between the arc-shaped contact part and the arc-shaped base part. The elastic element configures the arc-shaped contact part to have a tendency to squeeze towards the pulley side.

[0018] Furthermore, it also includes an adjustment mechanism for controlling the translation of the arc-shaped contact portion and the arc-shaped base portion relative to the inclined base surface. The adjustment mechanism includes a hydraulic cylinder, a guide shaft, and a linear bearing. The hydraulic cylinder is disposed in the mounting base, and the output axis of the hydraulic cylinder is perpendicular to the inclined base surface. A linear bearing is provided on the inclined base surface, and the linear bearings are respectively disposed on both sides of the hydraulic cylinder. The arc-shaped base portion is connected to the output end of the hydraulic cylinder. A guide shaft is fixedly provided on the outer side of the arc-shaped contact portion. The guide shaft passes through the arc-shaped base portion and is slidably connected and placed inside the linear bearing.

[0019] Furthermore, a U-shaped arc-shaped inner groove is formed inside the arc-shaped base portion, and several rollers are rotatably connected between the baffles on both sides of the arc-shaped inner groove, so that the arc-shaped contact portion forms a rolling contact with the cable.

[0020] Compared with existing technologies, the advantages of this utility model are as follows: This utility model provides a cable anti-loosening device, which effectively solves the problem of cables accumulating inside the cabin and becoming tangled when being transported to the upper deck. It also saves manpower, improves automation, and enhances personnel safety. The extension and retraction of the hydraulic cylinder controls the clamping force between the cable pressing device and the pulley, thus providing tension to the moving cable and preventing it from loosening during take-up or release. The hydraulic cylinder also allows for convenient control of the clamping force. Attached Figure Description

[0021] Figure 1 This is a front view of a cable anti-loosening device according to the present invention;

[0022] Figure 2 This is a top view of a cable anti-loosening device according to the present invention;

[0023] Figure 3 This is a side view of a cable anti-loosening device according to the present invention;

[0024] Figure 4 This is a schematic diagram of the installation structure of the pulley and side plate in this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the medium-pressure rope device of this utility model;

[0026] Figure 6 This utility model Figure 5 Schematic diagram of section AA;

[0027] In the diagram: 1. Limiting device; 2. Rope pressing device; 3. Support frame; 4. Pressing block; 5. Distance ring; 6. Drum shaft; 7. Drum body; 8. Copper sleeve; 9. Drum shaft fixing plate; 10. Lifting plate; 11. First side plate; 12. First bearing seat; 13. Cover plate; 14. Shaft end retaining ring; 15. Bearing body; 16. Oil seal skeleton; 17. Rib plate; 18. Rib plate; 19. Second side plate; 20. Second bearing seat; 21. Motor seat; 22. 1. Motor body; 23. Distance ring; 24. Wheel retainer ring; 25. Main shaft; 26. Pulley; 27. Base plate; 28. Roller; 29. ​​Baffle; 30. First base; 31. Spring; 32. Second base; 33. Inclined base surface; 34. Pin; 35. Connecting plate; 36. Hydraulic cylinder; 37. Base plate; 38. Actuating part; 39. Arc-shaped contact part; 40. Arc-shaped base part; 41. Mounting base; 43. Guide shaft; 44. Linear bearing. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0029] A cable anti-loosening device, such as Figure 1-6 As shown, it includes a support frame 3, with a pulley 26 rotatably mounted inside the support frame 3. The support frame 3 serves as the mounting base for the limiting device 1 and the rope pressing device 2. The overall anti-loosening device is positioned on the ship through the support frame 3.

[0030] Specifically, the support frame 3 includes a first side plate 11, a second side plate 19, and a base plate 27. The first side plate 11 and the second side plate 19 are vertically mounted on the base plate 27. The first side plate 11 and the second side plate 19 are parallel to each other, forming a space between them for a pulley 26. Hanging plates are provided on the tops of the first side plate 11 and the second side plate 19. The base plate 27 is used to fix itself to the deck inside the hull. The pulley 26 is rotatably mounted between the two side plates. Figure 1As shown, the cable is arranged to pass around the pulley 26, forming a horizontal entry section and an exit section. Correspondingly, an inlet end and an outlet end are formed at the corresponding positions on the support frame 3. The first side plate 11 and the second side plate 19 are fixed to the base plate 27 by welding. The lifting plate 10 is connected to the first side plate 11 and the second side plate 19 on both sides by bolts and nuts. The lifting plate 10 has threaded holes for installing lifting rings to facilitate the hoisting of the entire equipment during installation. The base plate 27 has through holes and is fixedly connected to the welded base by bolts and nuts.

[0031] The specific installation method of the pulley 26 and the side plate is as follows: Figure 4 As shown, bearing seats are respectively provided on the first side plate 11 and the second side plate 19, and the two bearing seats are coaxially arranged. Specifically, the first side plate 11 is provided with a first bearing seat 12, and the second side plate 19 is provided with a second bearing seat 20. The first bearing seat 12 is fixed to the first side plate 11 by bolts, and similarly, the second bearing seat 20 is also fixed to the second side plate 19 by bolts. A main shaft 25 is provided in both bearing seats, and a pulley 26 is provided on the main shaft 25. The pulley 26 is connected to the main shaft 25 by a key and is positioned circumferentially and axially by a wheel retaining ring 24. The bearing body 15 is installed at the left end of the main shaft 25 and is axially positioned by the step of the main shaft 25 and the shaft end retaining ring 14, while the bearing body 15 is positioned at the right end of the main shaft 25 by a spacer ring 55 and the shaft end retaining ring 14. The bearing bodies 15 at both ends are installed in the first bearing seat 12 and the second bearing seat 20. The cover plate 13 and the oil seal skeleton 16 seal the left end first bearing seat 12. The bearing seat contains a lubricating oil filling pipe, one end of which is connected to the bearing body 15, and the other end forms a filling port on the surface of the bearing seat. The bearing seat contains an oil seal skeleton 16 fitted onto the main shaft 25. In actual use, lubricating oil can be injected into the bearing body 15 through the filling port. One end of the bearing's inner side is sealed by the oil seal skeleton 16, and the other end is sealed by the cover plate 13 or by the motor, thus forming a sealed lubrication chamber. Specifically, the right end second bearing seat 20 is fixed to the motor seat 21 by bolts, and the motor seat 21 is connected to the motor body 22, finally sealed by the oil seal skeleton 16. The motor seat 21 contains the motor body 22, and the output end of the motor body 22 is connected to the main shaft 25, allowing the motor to drive the pulley 26 to rotate.

[0032] The limiting device 1 is installed at the inlet and / or outlet of the anti-loosening device. The limiting device 1 mainly allows the cable with a certain offset angle in the horizontal direction to enter smoothly, so as to prevent the cable from getting stuck. In actual use, two limiting devices 1 can be set at the inlet and outlet ends respectively, or one can be set. In this embodiment, the inlet end is used as an example. The cable enters the cable anti-loosening device, passes around the pulley 26 and is pulled out of the device. The device forms an inlet end for the cable to enter and an outlet end for the cable to exit. The limiting device 1 limits the swing range of the cable during movement. It includes two side limiting arms. The axis of the side limiting arms is parallel to the disc plane of the pulley 26, and the two side limiting arms are symmetrically arranged on both sides of the groove of the pulley 26. Due to the setting of the limiting arms on both sides, a long and narrow longitudinal gap is formed between the two limiting arms. When the cable passes through the long and narrow gap, it can limit the lateral swing of the cable, so that the cable can be accurately wound around the pulley 26 when it enters the interior through the limiting device 1, and avoid falling off.

[0033] Specifically, such as Figure 3 As shown, the two limiting arms of the limiting device 1 are rotatably connected to the support frame 3. It includes a roller body 7, a roller shaft 6, and a roller shaft fixing plate 9. The roller shaft fixing plate 9 is horizontally fixed between the first side plate 11 and the second side plate 19. The roller shaft fixing plate 9 is parallel to the bottom plate 27, forming an installation space for the limiting arms between them. The two ends of the roller shaft 6 are respectively set on the roller shaft fixing plate 9 and the bottom plate 27, and the roller body 7 is rotatably sleeved on the roller shaft 6. The limiting device 1 specifically includes a pressure block 4, a distance ring 55, a roller shaft 6, a roller body 7, a copper sleeve 8, and a roller shaft fixing plate 9. Copper sleeves 8 are installed at both ends of the roller body 7 and are installed together with the roller shaft 6. Distance rings 55 are installed at both ends of the roller shaft 6. The roller shaft fixing plate 9 is connected to the support frame 3 by bolts and nuts. It has internal openings for installing the roller shaft, and the pressure block 4 is connected to the roller shaft fixing plate 9 by screws to limit the position of the roller shaft. This allows the drum body 7 to be rotatably mounted on the drum shaft, facilitating the guidance of the cable.

[0034] The rope pressing device 2 is provided with a fan-shaped actuating part 38 that matches the outer arc of the pulley 26, such as... Figure 1 , 5 As shown, the actuating part 38 can controllably move closer to or further away from the pulley 26, and forms an arc-shaped clamping of the cable with the groove of the pulley 26.

[0035] The rope pressing device 2 is arranged to maintain a certain elasticity and press firmly against the cable at all times. When the actuating part 38 moves close to the pulley 26, it can clamp the cable, thereby creating an anti-loosening effect. Furthermore, the squeezing force of the actuating part 38 on the cable can be controlled, thus controlling the cable tension. The rope pressing device 2 primarily ensures that the stressed cable is pressed tightly against the pulley 26 and conveyed to the next stage equipment, preventing excessive cable accumulation and tangling.

[0036] The actuating part 38 includes an arc-shaped contact part 39, an arc-shaped base part 40, and a mounting base 41. The mounting base 41 is disposed on the base plate 27 between the two side plates. The mounting base 41 has an inclined base surface 33 facing the pulley 26. The arc-shaped base part 40 is provided on the inclined base surface 33. The arc-shaped contact part 39 is provided on the inner side of the arc-shaped base part 40. The inner side of the arc-shaped contact part 39 forms a side that cooperates with the pulley 26 to squeeze the cable. An elastic member is provided between the arc-shaped contact part 39 and the arc-shaped base part 40. The elastic member configures the arc-shaped contact part 39 to have a tendency to squeeze towards the pulley 26. In this embodiment, the elastic element can be a spring 31. In this embodiment, the arc-shaped contact part 39 has a first base 30, and the arc-shaped base part 40 is an arc-shaped plate-shaped second base 32. Multiple springs 31 are arranged between the first base 30 and the second base 32, so that the inner arc-shaped contour of the first base 30 is pressed onto the cable under the elastic action of the spring 31, and the inner side of the cable forms a clamping effect on both sides of the cable under the force of the first base 30.

[0037] Furthermore, to increase the distance adjustment range of the actuating part 38, an adjustment mechanism is also included to control the translation of the arc-shaped contact part 39 and the arc-shaped base part 40 relative to the inclined base surface 33. The adjustment mechanism includes a hydraulic cylinder 36, a guide shaft 43, and a linear bearing 44. The hydraulic cylinder 36 is disposed in the mounting base 41. Under the action of the hydraulic cylinder 36, the position of the actuating part 38 can be adjusted within a certain range. Specifically, the output axis of the hydraulic cylinder 36 is perpendicular to the inclined base surface 33. The inclined base surface 33 is provided with linear bearings 44, which are respectively disposed on both sides of the hydraulic cylinder 36. The arc-shaped base part 40 is connected to the output end of the hydraulic cylinder 36. The outer side of the arc-shaped contact part 39 is fixedly provided with a guide shaft 43. The guide shaft 43 passes through the arc-shaped base part 40 and is slidably connected and placed in the linear bearing 44.

[0038] Specifically, the second base 32 (i.e., the arc-shaped base portion 40) has two through holes through which the two guide shafts 43 of the first base 30 pass and are fitted. Both the first base 30 and the second base 32 have grooves for mounting springs 31. The second base 32 is connected to the hydraulic cylinder 36 via a pin 34, allowing the hydraulic cylinder 36 to control the movement of the actuating part 38. The hydraulic cylinder 36 is fixed to the base plate 37 via bolts. Connecting plates 35 are welded to both ends of the base plate 37, and these connecting plates 35 are connected to the inclined base surface 33 via bolts and nuts, thus forming the rope-pressing device 2. In use, the extension and retraction of the hydraulic cylinder 36 can be remotely controlled, controlling the arc-shaped contact portion 39 to press against the outside of the cable, and the spring 31 can provide elastic clamping to the cable. In some embodiments, to increase the friction effect on the cable, the inner wall of the arc-shaped contact portion 39 can be made of a wear-resistant material to create sliding friction with the cable, thereby providing a stronger clamping effect. However, its wear resistance is generally limited.

[0039] As an improvement, in some embodiments, the arc-shaped base portion 40 has a U-shaped arc-shaped inner groove inside, such as... Figure 5 , 6 As shown, several rollers 28 are rotatably connected between the baffles 29 on both sides of the arc-shaped inner groove, so that the arc-shaped contact part 39 forms a rolling contact with the cable. Specifically, the arc-shaped base part 40 is composed of a first base 30 and baffles 29 forming a U-shaped structure. The two ends of the first base 30 are fixed to the baffles 29 by bolts. The baffles 29 have through holes so that the shafts of the rollers 28 are installed with the baffles 29. In this embodiment, the rollers 28 form a rolling contact with the cable, thereby reducing the wear caused by contact with the cable.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cable anti-loosening device, comprising a support frame (3), wherein a pulley (26) is rotatably provided within the support frame (3), characterized in that, The limiting device (1) is set at the inlet end and / or outlet end of the anti-loosening device and limits the swing range of the cable during the movement. It includes two side limiting arms, the axis of which is parallel to the disc plane of the pulley (26), and the two side limiting arms are symmetrically arranged on both sides of the groove of the pulley (26). The rope pressing device (2) is provided with a fan-shaped actuating part (38) that matches the outer arc of the pulley (26). The actuating part (38) can move controllably closer to or further away from the pulley (26) and form an arc-shaped clamping of the cable with the groove of the pulley (26). The rope pressing device (2) is arranged to always maintain a certain elasticity and press the cable. The support frame (3) serves as the mounting base for the limiting device (1) and the rope pressing device (2). The overall anti-loosening device is positioned on the ship through the support frame (3).

2. The cable anti-loosening device according to claim 1, characterized in that, The support frame (3) includes a first side plate (11), a second side plate (19), and a bottom plate (27). The first side plate (11) and the second side plate (19) are vertically arranged on the bottom plate (27). The first side plate (11) and the second side plate (19) are arranged parallel to each other, and a space for setting pulleys (26) is formed between them. The top of the first side plate (11) and the second side plate (19) is provided with a hanging plate.

3. The cable anti-loosening device according to claim 2, characterized in that, The two limiting arms of the limiting device (1) are rotatably connected to the support frame (3), which includes a roller body (7), a roller shaft (6), and a roller shaft fixing plate (9). The roller shaft fixing plate (9) is horizontally fixed between the first side plate (11) and the second side plate (19). The roller shaft fixing plate (9) is parallel to the bottom plate (27) so that the installation space of the limiting arms is formed between the two. The two ends of the roller shaft (6) are respectively set on the roller shaft fixing plate (9) and the bottom plate (27). The roller body (7) is rotatably sleeved on the roller shaft (6).

4. The cable anti-loosening device according to claim 2, characterized in that, Bearing seats are provided on the first side plate (11) and the second side plate (19), and the two bearing seats are coaxially arranged. A main shaft (25) is provided in the two bearing seats, and a pulley (26) is provided on the main shaft (25).

5. A cable anti-loosening device according to claim 4, characterized in that, A motor mount (21) is provided on one side plate, and a motor body (22) is provided inside the motor mount (21). The output end of the motor body (22) is connected to the main shaft (25).

6. A cable anti-loosening device according to claim 4, characterized in that, The bearing housing is provided with a lubricating oil filling pipe. One end of the lubricating oil filling pipe is connected to the bearing body (15), and the other end forms a filling port on the surface of the bearing housing. The bearing housing is provided with an oil seal skeleton (16) sleeved on the main shaft (25).

7. A cable anti-loosening device according to claim 2, characterized in that, The actuating part (38) includes an arc-shaped contact part (39), an arc-shaped base part (40), and a mounting base (41). The mounting base (41) is disposed on the base plate (27) between the two side plates. The mounting base (41) has an inclined base surface (33) facing the pulley (26). The arc-shaped base part (40) is provided on the inclined base surface (33). The arc-shaped contact part (39) is provided on the inner side of the arc-shaped base part (40). The inner side of the arc-shaped contact part (39) forms a side that cooperates with the pulley (26) to squeeze the cable. An elastic member is provided between the arc-shaped contact part (39) and the arc-shaped base part (40). The elastic member configures the arc-shaped contact part (39) to have a tendency to squeeze towards the pulley (26).

8. A cable anti-loosening device according to claim 7, characterized in that, It also includes an adjustment mechanism for controlling the translation of the arc-shaped contact part (39) and the arc-shaped base part (40) relative to the inclined base surface (33). The adjustment mechanism includes a hydraulic cylinder (36), a guide shaft (43), and a linear bearing (44). The hydraulic cylinder (36) is disposed in the mounting base (41). The output axis of the hydraulic cylinder (36) is perpendicular to the inclined base surface (33). The inclined base surface (33) is provided with a linear bearing (44). The linear bearing (44) is respectively disposed on both sides of the hydraulic cylinder (36). The arc-shaped base part (40) is connected to the output end of the hydraulic cylinder (36). The outer side of the arc-shaped contact part (39) is fixedly provided with a guide shaft (43). The guide shaft (43) passes through the arc-shaped base part (40) and is slidably connected into the linear bearing (44).

9. A cable anti-loosening device according to claim 7, characterized in that, The arc-shaped base (40) has a U-shaped arc-shaped inner groove inside. Several rollers (28) are rotatably connected between the baffles (29) on both sides of the arc-shaped inner groove, so that the arc-shaped contact part (39) forms a rolling contact with the cable.

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