A type of abrasion-resistant guide for marine mooring lines

Abstract

This utility model relates to the technical field of mooring line guides, and more particularly to a marine mooring line anti-wear guide, comprising: a frame; a lifting plate frame; and a roller assembly including two sets of vertical columns and two sets of horizontal columns. Each set of vertical and horizontal columns is driven by one end of the lifting plate frame extending into the frame. Arc-shaped seats are symmetrically fixed at corresponding positions on the surfaces of the two sets of vertical and horizontal columns, and ball bearings are uniformly rotatably connected to the surface of the arc-shaped seats. This utility model has a reasonable structure. Through the arc-shaped seats with ball bearings on the surfaces of the vertical and horizontal columns, combined with the built-in lubricating oil storage chamber, the line contact between the cable and the rollers is changed to point contact, reducing friction and extending the cable's lifespan. The two sets of arc-shaped seats on the vertical and horizontal columns, driven by hydraulics, allow for quick switching to standby, improving the equipment's continuous operation capability. A laser displacement sensor monitors ball bearing wear in real time, triggering an alarm when the threshold is exceeded to avoid sudden malfunctions. A lower mounting trough storage chamber stores spare parts and tools, simplifying maintenance and improving emergency response efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of cable guides, and in particular to a wear-resistant cable guide for marine mooring lines. Background Technology

[0002] In ship mooring operations, the mooring line guide is a core auxiliary device to ensure mooring safety. Its core function is to guide the mooring line along a preset path, avoid direct collision and friction between the line and the ship's structure, and maintain the stability of the line's force. Currently, most mainstream marine line guides on the market adopt a four-axis roller structure, consisting of a frame, four smooth cylindrical rollers arranged in a rectangle, and a rectangular guide frame. The four rollers are vertically and horizontally connected to the frame to form a staggered rectangular frame, through which the line passes for guidance during operation.

[0003] However, in actual marine environments, this type of guide has significant technical defects, making it difficult to meet the requirements for long-term stable operation:

[0004] Excessive friction loss: The roller is a smooth cylindrical structure, and the cable and the roller surface are in line contact. Affected by waves and sea winds, the hull is prone to swaying, which causes the cable to not only move along the roller axis during the guiding process, but also to be laterally offset and squeezed with the roller surface, which increases the contact pressure and generates a lot of sliding friction.

[0005] Roller jamming: When the cable is subjected to a large mooring tension, the frictional resistance will greatly reduce the roller's rotational flexibility, and even cause "jamming" phenomenon; at this time, the friction mode between the cable and the roller changes from rolling friction to sliding friction, the friction coefficient increases significantly, and the fiber wear and breakage on the surface of the cable are accelerated.

[0006] Maintenance response is slow: The existing cable guide lacks a real-time monitoring mechanism for roller wear, making it impossible to detect abnormal roller wear in a timely manner. Furthermore, there is no dedicated spare parts storage structure, requiring temporary dispatch of spare parts after wear, resulting in low maintenance efficiency and long work interruption time. Utility Model Content

[0007] This utility model aims to at least partially solve one of the technical problems in the related art.

[0008] Therefore, the purpose of this utility model is to propose a wear-resistant guide for marine mooring lines. This utility model has a reasonable structure. Through the arc-shaped seats with ball bearings on the surfaces of the vertical and horizontal columns, combined with the built-in lubricating oil storage chamber, the line contact between the cable and the rollers is changed to point contact, reducing friction and extending the cable life. The vertical and horizontal columns are equipped with two sets of arc seats, which can be quickly switched to standby by hydraulic drive, improving the continuous operation capability of the equipment. A laser displacement sensor monitors the wear of the ball bearings in real time, triggering an alarm when the threshold is exceeded to avoid sudden failures. The lower installation trough storage chamber stores spare parts and tools, simplifying maintenance and improving emergency efficiency.

[0009] To achieve the above objectives, this utility model proposes a marine mooring line anti-wear guide, comprising:

[0010] The frame has an upper mounting slot, a middle mounting slot, and a lower mounting slot sequentially opened along the vertical direction on its surface;

[0011] Lifting frame: vertically slidably connected to the inner wall of the upper mounting slot, driven by a hydraulic telescopic rod set at the top of the frame;

[0012] Roller assembly: includes two sets of vertical columns and two sets of horizontal columns. The two sets of vertical columns are vertically rotatably connected to the inner wall of the central mounting groove, and the two sets of horizontal columns are horizontally rotatably connected to the inner wall of the central mounting groove and located on one side of the vertical columns. Both sets of vertical columns and two sets of horizontal columns are driven by one end of the lifting plate extending into the machine frame.

[0013] Among them, arc-shaped seats are symmetrically fixedly connected at corresponding positions on the surfaces of the two sets of vertical columns and the two sets of horizontal columns, and ball bearings are uniformly rotatably connected to the surfaces of the arc-shaped seats.

[0014] A detection mechanism is provided at each position of the arc-shaped seat on the inner wall of the middle mounting groove, and a controller is provided on the inner wall of the lower mounting groove. The detection mechanism and the hydraulic telescopic rod are electrically connected to the controller through wires to realize the transmission of detection data and the reception of control commands.

[0015] In addition, the marine mooring line anti-wear guide proposed in the above application may also have the following additional technical features:

[0016] Specifically, the lifting frame includes a plate body, which is vertically slidably connected to the inner wall of the upper mounting groove, and the top of the plate body is fixedly connected to the output end of the hydraulic telescopic rod;

[0017] At the bottom of the plate, at the corresponding positions of the two sets of vertical columns and the two sets of horizontal columns, a first limiting post and a second limiting post are fixedly connected respectively.

[0018] Both ends of the plate extend into the machine frame and are fixedly connected to a drive rod frame. The drive rod frame is located between the vertical column and the horizontal column, and both sides of the drive rod frame are integrally formed with teeth.

[0019] Specifically, the first limiting post is a transmission key post, and the second limiting post is a transmission cylinder;

[0020] Two sets of teeth are provided at intervals along the height direction on the surface of the drive rod frame near the vertical column.

[0021] A set of teeth is provided on the surface of the drive rod frame near the side of the horizontal column, and the projection of the set of teeth in the height direction of the drive rod frame is located between the interval area of ​​the two sets of teeth on the side of the vertical column.

[0022] Specifically, worm gears are coaxially fixedly connected to the top and bottom of the vertical column, and a worm is rotatably connected to one side of each worm gear, with the worm gear and worm meshing together.

[0023] The inner wall of the frame is symmetrically fixedly connected with a first sleeve. The inner wall of the first sleeve is provided with a first one-way transmission device. One end of the first one-way transmission device is fixedly connected to one end of the worm gear, and the other end extends through the outside of the first sleeve and is coaxially fixedly connected with a first drive gear.

[0024] The first drive gear meshes with the toothed portion near the vertical column;

[0025] The vertical column and the worm gear have a keyway coaxially formed on their surfaces, and the keyway is connected along the axial direction of the vertical column and the worm gear. The keyway corresponds to the position of the first limiting post, and one end of the first limiting post is slidably connected to the inner wall of the keyway in the vertical direction.

[0026] Specifically, the horizontal column has symmetrically formed grooves on its surface, located outside the arc-shaped seat;

[0027] The column groove corresponds to the position of the second limiting post, and one end of the second limiting post is slidably connected to the inner wall of the column groove in the vertical direction;

[0028] The inner wall of the frame is symmetrically fixedly connected with a second sleeve, which is sleeved on the outside of the central shaft of the horizontal column, and a second one-way transmission device is provided on its inner wall.

[0029] One end of the second one-way transmission device is connected to one end of the central shaft of the horizontal column, and the other end extends through the outside of the second sleeve and is coaxially fixedly connected to the second drive gear;

[0030] The second drive gear meshes with the toothed portion near the side of the cross column.

[0031] Specifically, the detection mechanism includes a base and wear detection sensors. The base is fixedly connected to the inner wall of the mounting groove, and the wear detection sensors are evenly arranged on the side surface of the base facing the ball.

[0032] The wear detection sensor is a laser displacement sensor, and each wear detection sensor corresponds one-to-one with the ball bearings on the surface of the arc-shaped seat, used to detect the surface wear and dimensional changes of the ball bearings.

[0033] Specifically, it also includes an audible and visual alarm, which is fixedly connected to the top of the frame by bolts and electrically connected to the controller via wires to realize the transmission of abnormal detection data and the reception of alarm control commands.

[0034] Specifically, a storage cavity is provided on one side of the bottom of the lower mounting groove in a horizontal direction. The storage cavity is used to store the arc-shaped seat with the ball installed and maintenance tools.

[0035] A locking plate is rotatably connected to the outer port of the storage cavity via a hinge. The locking plate is detachably connected to the edge of the storage cavity port via a lock to achieve the closing and opening of the storage cavity.

[0036] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0037] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0038] 1. Significantly reduces cable wear and extends service life: By setting arc-shaped seats with ball bearings on the surfaces of the vertical and horizontal columns, the line contact between the cable and the rollers is changed to point contact between the ball bearings and the cable. Combined with the lubricating oil storage chamber built into the arc-shaped seat (supplying oil to the gap between the ball bearings through microchannels), frictional resistance is reduced in two ways. At the same time, the ball bearings rotate synchronously with the cable, avoiding sliding friction and solving the problem of "high frictional loss and easy cable breakage" from the root.

[0039] 2. Enhance the continuous operation capability of the equipment and reduce the frequency of maintenance: Two sets of arc-shaped seats are symmetrically set on the surfaces of the vertical and horizontal columns to form a "two-way backup structure". When the ball bearings of one set of arc-shaped seats wear out, the hydraulic drive mechanism can quickly switch to the other set of backup arc-shaped seats without stopping the machine for disassembly, solving the problem of "stopping the machine when a single set of rollers wears out" and extending the continuous operation time of the equipment.

[0040] 3. Real-time monitoring of wear status to avoid sudden failures: Laser displacement sensors (detection mechanisms) are installed on the inner wall of the mounting groove for each ball bearing, which can monitor the wear and dimensional changes of the ball bearing surface in real time; when the wear data exceeds the preset threshold, the controller immediately triggers an audible and visual alarm, solving the problem of "lagging wear monitoring and sudden failures" and realizing preventive maintenance;

[0041] 4. Simplify maintenance process and improve emergency response efficiency: A storage cavity is opened at the bottom of the lower installation slot to store spare arc-shaped seats and maintenance tools. The storage cavity is closed by a locking plate with a lock, which not only ensures the safety of spare parts, but also allows for quick access when replacement is needed, solving the problem of "slow spare parts allocation and long maintenance interruption". Attached Figure Description

[0042] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0043] Figure 1 This is a schematic diagram of the structure of a marine mooring cable anti-wear guide according to the present invention;

[0044] Figure 2 This is a schematic diagram of the lifting plate frame structure in a marine mooring cable anti-wear guide of the present invention;

[0045] Figure 3 This is a schematic diagram of the vertical column structure in a marine mooring cable anti-wear guide of the present invention;

[0046] Figure 4 This is a schematic diagram of the horizontal column structure in a marine mooring cable anti-wear guide of this utility model.

[0047] As shown in the figure:

[0048] 1. Frame; 11. Upper mounting slot; 12. Middle mounting slot; 13. Lower mounting slot;

[0049] 2. Lifting frame; 21. Plate body; 22. First limiting post; 23. Second limiting post; 24. Drive rod frame; 25. Toothed part;

[0050] 3. Roller assembly; 31. Vertical column; 311. Worm gear; 312. Worm; 313. First sleeve; 314. First one-way transmission; 315. First drive gear; 316. Keyway; 32. Horizontal column; 321. Column groove; 322. Second sleeve; 323. Second one-way transmission; 324. Second drive gear; 33. Arc-shaped seat; 331. Ball bearing; 34. Detection mechanism;

[0051] 4. Controller; 100. Hydraulic telescopic rod; 200. Audible and visual alarm; 300. Locking plate. Detailed Implementation

[0052] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0053] The following description, in conjunction with the accompanying drawings, describes a marine mooring cable anti-wear guide according to an embodiment of the present invention.

[0054] like Figures 1-4 As shown, an embodiment of this utility model provides a marine mooring line anti-wear guide, comprising:

[0055] Frame 1: The surface is provided with an upper mounting groove 11, a middle mounting groove 12 and a lower mounting groove 13 in sequence along the vertical direction;

[0056] Lifting frame 2: It is vertically slidably connected to the inner wall of the upper mounting groove 11 and is driven by the hydraulic telescopic rod 100 set at the top of the frame 1;

[0057] Roller assembly 3: includes two sets of vertical columns 31 and two sets of horizontal columns 32. The two sets of vertical columns 31 are vertically rotatably connected to the inner wall of the central mounting groove 12, and the two sets of horizontal columns 32 are horizontally rotatably connected to the inner wall of the central mounting groove 12 and located on one side of the vertical columns 31. The two sets of vertical columns 31 and the two sets of horizontal columns 32 are all driven by one end of the lifting plate frame 2 extending into the machine frame 1.

[0058] Among them, arc-shaped seats 33 are symmetrically fixedly connected at corresponding positions on the surfaces of the two sets of vertical columns 31 and the two sets of horizontal columns 32, and ball bearings 331 are uniformly rotatably connected to the surface of the arc-shaped seats 33.

[0059] A detection mechanism 34 is provided on the inner wall of the middle mounting groove 12 at the position corresponding to each arc-shaped seat 33. A controller 4 is provided on the inner wall of the lower mounting groove 13. The detection mechanism 34 and the hydraulic telescopic rod 100 are electrically connected to the controller 4 through wires to realize the transmission of detection data and the reception of control commands.

[0060] It should be noted that the arc-shaped seat 33 described in this embodiment has an internal lubricating oil storage cavity (not shown in the figure), and the surface of the arc-shaped seat 33 has a mounting hole for mounting the ball 331. A microchannel (not shown in the figure) is provided between the inner wall of the mounting hole and the interior of the lubricating oil storage cavity. The microchannel is used to guide the lubricating oil in the lubricating oil storage cavity to the mating gap between the ball 331 and the mounting hole.

[0061] Specifically, this utility model has a reasonable structure. Through the arc-shaped seats 33 with ball bearings 331 on the surface of the vertical column 31 and the horizontal column 32, and the oil supply from the built-in lubricating oil storage chamber, the contact between the cable and the roller is changed from line contact to point contact, reducing friction and extending the cable life. The vertical column 31 and the horizontal column 32 are equipped with two sets of arc-shaped seats 33, which can be quickly switched to standby by hydraulic drive, improving the continuous operation capability of the equipment. The laser displacement sensor monitors the wear of the ball bearings 331 in real time, and triggers an alarm when the threshold is exceeded to avoid sudden failures. The storage chamber of the lower mounting groove 13 stores spare parts and tools, simplifying maintenance and improving emergency efficiency.

[0062] Its working principle is as follows: It mainly consists of four stages:

[0063] Phase 1: Normal-guided friction reduction phase

[0064] The mooring cable passes through the rectangular guide frame formed by the misalignment of two sets of vertical posts 31 (vertical) and two sets of horizontal posts 32 (horizontal), and comes into direct contact with the ball bearings 331 on the surface of the arc-shaped seat 33.

[0065] When the cable moves, it synchronously drives the ball 331 to rotate around the arc-shaped seat 33, realizing the linkage of "cable movement - ball 331 rolling", avoiding sliding friction. At the same time, the lubricating oil in the arc-shaped seat 33 seeps into the gap between the ball 331 and the mounting hole through the microchannel, and is evenly attached to the surface of the cable as the ball 331 rotates, further reducing frictional resistance.

[0066] At this time, the first limiting post 22 (transmission key post) of the lifting plate 2 is embedded in the keyway 316 of the vertical post 31, and the second limiting post 23 (transmission cylinder) is embedded in the column groove 321 of the horizontal post 32, ensuring that the vertical post 31 and the horizontal post 32 are stably positioned during the guiding process and avoiding additional friction caused by displacement.

[0067] Phase 2: Switching to the spare curved seat 33

[0068] When the ball bearing 331 reaches the preset usage time or after a single operation, the arc-shaped seat 33 switching process is initiated to improve the service life of the ball bearing 331 and ensure the anti-friction effect. This is mainly achieved by "hydraulic drive + one-way transmission" to achieve precise switching.

[0069] The controller 4 sends a command to the hydraulic telescopic rod 100 at the top of the frame 1. The hydraulic telescopic rod 100 retracts, causing the plate 21 of the lifting frame 2 to rise vertically along the inner wall of the upper mounting groove 11.

[0070] As the plate 21 rises, it simultaneously causes the first limiting post 22 to disengage from the keyway 316 of the vertical post 31 and the second limiting post 23 to disengage from the groove 321 of the horizontal post 32, thus releasing the positioning restrictions on the vertical post 31 and the horizontal post 32. At the same time, the drive rods 24 at both ends of the plate 21 move upwards, and the teeth 25 on both sides of them mesh with the first drive gear 315 on the side of the vertical post 31 and the second drive gear 324 on the side of the horizontal post 32, respectively.

[0071] As the drive lever 24 continues to rise, the toothed section 25 drives the first drive gear 315 and the second drive gear 324 to rotate.

[0072] The first drive gear 315 drives the worm 312 to rotate through the first one-way transmission 314 (which transmits torque in only one direction). The worm 312 meshes with the worm wheels 311 at both ends of the vertical column 31, thereby driving the vertical column 31 to rotate 180°, so that the spare arc-shaped seat 33 rotates to the guide position.

[0073] The second drive gear 324 drives the horizontal column 32 to rotate 180° through the second one-way transmission 323, and simultaneously completes the switching of the spare arc seat 33 of the horizontal column 32 (the projection of the toothed part 25 on the side of the horizontal column 32 of the drive rod 24 is located in the interval area between the two sets of toothed parts 25 on the side of the vertical column 31, ensuring that the vertical column 31 and the horizontal column 32 switch synchronously).

[0074] After the switching is completed, the hydraulic telescopic rod 100 extends and drives the plate 21 to descend and reset. The first limit post 22 is re-embedded in the keyway 316 of the vertical post 31, and the second limit post 23 is re-embedded in the column groove 321 of the horizontal post 32, completing the positioning and the equipment resumes guiding operation.

[0075] Phase 3: Wear Monitoring Phase

[0076] The laser displacement sensor (corresponding one-to-one with the ball 331) in the middle mounting slot 12 emits laser to the surface of the ball 331, collects data such as the surface flatness and diameter of the ball 331 in real time, and transmits the detection data to the controller 4 in the lower mounting slot 13 through wires;

[0077] The controller 4 presets a wear threshold for the ball bearing 331 (such as wear on diameter > 2mm or obvious dents on the surface). When the detected data exceeds the threshold, the controller 4 immediately sends a command to the audible and visual alarm 200 to trigger the audible and visual alarm and remind the operator to prepare to replace the arc-shaped seat 33.

[0078] Phase 4: Maintenance and Replacement Support Phase

[0079] When both sets of arc-shaped seats 33 are worn to the point of needing replacement, the operator opens the locking plate 300 of the storage chamber of the lower mounting slot 13, takes out the spare arc-shaped seat 33 and maintenance tools from the storage chamber, and quickly completes the disassembly and replacement of the worn arc-shaped seat 33; after replacement, the locking plate 300 is closed and locked to ensure the safe storage of spare parts and to prepare for the next maintenance.

[0080] In one embodiment of this utility model, such as Figure 2 As shown, the lifting platform 2 includes a plate body 21, which is vertically slidably connected to the inner wall of the upper mounting groove 11, and the top of the plate body 21 is fixedly connected to the output end of the hydraulic telescopic rod 100.

[0081] At the bottom of the plate 21, at the corresponding positions of the two sets of vertical columns 31 and the two sets of horizontal columns 32, the first limiting column 22 and the second limiting column 23 are fixedly connected respectively.

[0082] The two ends of the plate 21 extend into the interior of the frame 1 and are fixedly connected to the drive rod frame 24. The drive rod frame 24 is located between the vertical column 31 and the horizontal column 32. Both sides of the drive rod frame 24 are integrally formed with toothed parts 25.

[0083] Specifically, the lifting platform 2 uses the plate body 21 as the basic carrier. The plate body 21 is vertically slidably connected to the inner wall of the upper mounting groove 11 of the frame 1. The top is directly fixed to the output end of the hydraulic telescopic rod 100. Vertical lifting can be achieved by the extension and retraction of the hydraulic telescopic rod 100. The bottom of the plate body 21 corresponds to the position of the vertical column 31 and the horizontal column 32, and the first limiting column 22 and the second limiting column 23 are fixed respectively. Both ends penetrate into the inside of the frame 1 and are connected to the drive rod frame 24. The drive rod frame 24 is located between the vertical column 31 and the horizontal column 32. Between the columns 32, toothed portions 25 are integrally formed on both sides. The extension force of the hydraulic telescopic rod 100 is transmitted to the drive rod frame 24 through the plate 21. The toothed portions 25 of the drive rod frame 24 then mesh with the subsequent gear structure to provide power for the rotation switching of the vertical column 31 and the horizontal column 32. When the plate 21 descends, the first limiting post 22 and the second limiting post 23 are respectively embedded in the corresponding slots of the vertical column 31 and the horizontal column 32 to restrict the rotation of the vertical column 31 and the horizontal column 32 during the guiding operation and ensure structural stability.

[0084] In one embodiment of this utility model, such as Figure 2 As shown, the first limiting post 22 is a transmission key post, and the second limiting post 23 is a transmission cylinder;

[0085] Two sets of teeth 25 are provided at intervals along the height direction on the surface of the drive rod frame 24 near the vertical column 31.

[0086] On the surface of the drive rod 24 near the horizontal column 32, there is a set of teeth 25, and the projection of the set of teeth 25 in the height direction of the drive rod 24 is located between the interval area of ​​the two sets of teeth 25 on the side of the vertical column 31.

[0087] Specifically, the first limiting post 22 is set as a transmission key post, which cooperates with the keyway 316 of the vertical post 31. Because the key connection has the characteristics of "circumferential fixation and axial sliding", it can restrict the rotation of the vertical post 31 without affecting the lifting and lowering of the plate 21. The second limiting post 23 is set as a transmission cylinder, which cooperates with the column groove 321 of the horizontal post 32. Positioning is achieved by the fit between the cylindrical surface and the groove, which is adapted to the structural design of the horizontal post 32. The drive rod 24 has two sets of spaced teeth 25 on the side near the vertical post 31 and one set of teeth 25 on the side near the horizontal post 32. The projection of the teeth 25 on the horizontal post 32 side in the height direction is exactly located in the interval area of ​​the two sets of teeth 25 on the side of the vertical post 31. This layout ensures that when the drive rod 24 rises, the two sets of teeth 25 are precisely engaged with the drive gears on the side of the vertical post 31 and the side of the horizontal post 32, respectively, driving the vertical post 31 and the horizontal post 32 to rotate synchronously by 180°, avoiding structural jamming caused by asynchronous switching.

[0088] In one embodiment of this utility model, such as Figure 3As shown, worm gears 311 are coaxially fixedly connected to the top and bottom of the vertical column 31, and worms 312 are rotatably connected to one side of each worm gear 311. The worm gears 311 and worms 312 are meshed and connected.

[0089] A first sleeve 313 is symmetrically fixedly connected to the inner wall of the frame 1. A first one-way transmission device 314 is provided on the inner wall of the first sleeve 313. One end of the first one-way transmission device 314 is fixedly connected to one end of the worm gear 312, and the other end extends through the outside of the first sleeve 313 and is coaxially fixedly connected to a first drive gear 315.

[0090] The first drive gear 315 is engaged with the toothed portion 25 on the side near the vertical column 31;

[0091] The surfaces of the vertical column 31 and the worm gear 311 are coaxially provided with a keyway 316, and the keyway 316 is connected along the axial direction of the vertical column 31 and the worm gear 311. The keyway 316 is positioned corresponding to the first limiting post 22, and one end of the first limiting post 22 is slidably connected to the inner wall of the keyway 316 in the vertical direction.

[0092] Specifically, a worm gear 311 is coaxially fixed at the top and bottom of the vertical column 31, and a meshing worm 312 is fitted on one side. One end of the worm 312 is connected to a first one-way transmission device 314. The outer end of the first one-way transmission device 314 penetrates the first sleeve 313 inside the inner wall of the frame 1 and is connected to a first drive gear 315. A keyway 316 is coaxially opened on the surface of the vertical column 31 and the worm gear 311, and the keyway 316 is axially connected for the first limiting post 22 to be embedded. Because the worm gear 311 and worm 312 transmission has the characteristics of "large reduction ratio and strong self-locking", it can reduce the high-speed rotation of the first drive gear 315. The transition is transformed into a slow rotation of the vertical column 31, ensuring precise switching (exactly 180° rotation) and stable self-locking after switching to prevent accidental rotation. The first one-way transmission 314 only allows power to be transmitted from the first drive gear 315 to the worm gear 312 (driving the vertical column 31 to rotate when rising). When the plate 21 descends, the first drive gear 315 reverses, and the first one-way transmission 314 cuts off the power to prevent the vertical column 31 from rotating in the opposite direction. The first sleeve 313 fixes the position of the first one-way transmission 314 and the worm gear 312 to ensure the coaxiality of the transmission components and prevent transmission deviation.

[0093] In one embodiment of this utility model, such as Figure 4 As shown, the horizontal column 32 has symmetrically formed column grooves 321 on its surface, which are located outside the arc-shaped seat 33;

[0094] The column groove 321 is positioned corresponding to the second limiting post 23, and one end of the second limiting post 23 is slidably connected to the inner wall of the column groove 321 in the vertical direction;

[0095] The inner wall of the frame 1 is symmetrically fixed with a second sleeve 322. The second sleeve 322 is sleeved on the outside of the central axis of the horizontal column 32, and a second one-way transmission device 323 is provided on its inner wall.

[0096] One end of the second one-way transmission device 323 is connected to one end of the central shaft of the horizontal column 32, and the other end extends through the outside of the second sleeve 322 and is coaxially fixedly connected to the second drive gear 324.

[0097] The second drive gear 324 meshes with the toothed portion 25 on the side near the cross column 32.

[0098] It should be noted that the second one-way drive 323 and the first one-way drive 314 described in this embodiment are both ratchet-type one-way drives.

[0099] Specifically, the surface of the horizontal column 32 has symmetrically opened column grooves 321 (located outside the arc-shaped seat 33) for the second limiting column 23 to be embedded. The inner wall of the frame 1 is symmetrically fixed with a second sleeve 322, which is sleeved on the outside of the central axis of the horizontal column 32. The inner wall of the second sleeve 322 is provided with a second one-way transmission 323. The outer end of the second one-way transmission 323 is connected to the second drive gear 324. The horizontal column 32 is directly connected to the second drive gear 324 through the second one-way transmission 323. Since the load of the horizontal column 32 is relatively small, there is no need to reduce speed and amplify power, which simplifies the structure and reduces costs. The function of the second one-way transmission 323 is the same as that of the first one-way transmission 314. It only allows the toothed part 25 to drive the horizontal column 32 to rotate when it rises and cuts off the power when it falls, ensuring that the horizontal column 32 is stably positioned after switching. The second sleeve 322 fixes the position of the central axis of the horizontal column 32 and the second one-way transmission 323 to ensure the coaxiality of the transmission.

[0100] In one embodiment of this utility model, such as Figure 1 As shown, the detection mechanism 34 includes a base and wear detection sensors. The base is fixedly connected to the inner wall of the central mounting groove 12, and the wear detection sensors are evenly arranged on the side surface of the base facing the ball 331.

[0101] The wear detection sensor is a laser displacement sensor, and each wear detection sensor corresponds one-to-one with the ball 331 on the surface of the arc-shaped seat 33, and is used to detect the surface wear and dimensional changes of the ball 331.

[0102] Specifically, the detection mechanism 34 consists of a seat fixed to the inner wall of the mounting groove 12 and a wear detection sensor (laser displacement sensor) on the side of the seat facing the ball 331. Each sensor corresponds one-to-one with the ball 331 on the surface of the arc-shaped seat 33. The laser displacement sensor emits a laser beam to the surface of the ball 331, receives the reflected signal to calculate the distance, and then obtains data such as the surface flatness and diameter of the ball 331 to accurately determine the degree of wear (such as surface dents and diameter reduction). The sensor transmits real-time data to the controller 4 to provide a basis for subsequent "alarm triggering" and "switching judgment" to avoid increased cable friction due to excessive wear of the ball 331.

[0103] In one embodiment of this utility model, such as Figure 1 As shown, it also includes an audible and visual alarm 200, which is fixedly connected to the top of the frame 1 by bolts. The audible and visual alarm 200 is electrically connected to the controller 4 through wires to realize the transmission of abnormal detection data and the reception of alarm control commands.

[0104] Specifically, the audible and visual alarm 200 is fixed to the top of the frame 1 with bolts for easy observation and listening by the operator. It is also electrically connected to the controller 4 in the lower mounting slot 13 via wires. When the wear data of the ball 331 received by the controller 4 exceeds the preset threshold (e.g., diameter wear > 2mm), it immediately sends a command to the alarm. The alarm then simultaneously emits an audible alarm and flashes a light, visually reminding the operator that "the ball 331 needs to be replaced," thus avoiding cable breakage and equipment failure due to delayed wear monitoring.

[0105] In one embodiment of this utility model, such as Figure 1 As shown, a storage cavity is provided on one side of the bottom of the lower mounting groove 13 in a horizontal direction. The storage cavity is used to store the arc-shaped seat 33 with the ball bearing 331 installed and maintenance tools.

[0106] A locking plate 300 is rotatably connected to the outer port of the storage cavity via a hinge. The locking plate 300 is detachably connected to the edge of the storage cavity port via a lock to achieve the closing and opening of the storage cavity.

[0107] Specifically, a storage cavity is opened horizontally on one side of the bottom of the lower mounting groove 13 to store spare arc-shaped seats 33 with ball bearings 331 and maintenance tools, avoiding maintenance delays caused by temporary allocation of spare parts. The outer port of the storage cavity is connected to the locking plate 300 by a hinge, and the locking plate 300 is detachably connected to the edge of the port by a lock. When normally locked, it can prevent spare parts from being lost or getting wet (adapted to marine environments). When maintaining, the lock can be opened to quickly retrieve the spare parts, shortening maintenance time.

[0108] In summary, the marine mooring cable anti-wear guide of this utility model has a reasonable structure. Through the arc-shaped seats 33 with ball bearings 331 on the surface of the vertical column 31 and horizontal column 32, combined with the built-in lubricating oil storage chamber, the linear contact between the cable and the rollers is changed to point contact, reducing friction and extending the cable's lifespan. The vertical column 31 and horizontal column 32 are equipped with two sets of arc-shaped seats 33, which can be quickly switched to standby by hydraulic drive, improving the equipment's continuous operation capability. A laser displacement sensor monitors the wear of the ball bearings 331 in real time, triggering an alarm when the wear exceeds a threshold to avoid sudden failures. The lower mounting groove 13 stores spare parts and tools, simplifying maintenance and improving emergency response efficiency.

[0109] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0110] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0111] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A marine mooring line wear reducer fairlead, characterized by, include: The frame (1) has an upper mounting groove (11), a middle mounting groove (12) and a lower mounting groove (13) sequentially opened along the vertical direction on its surface; Lifting frame (2): vertically slidably connected to the inner wall of the upper mounting groove (11), driven by a hydraulic telescopic rod (100) set at the top of the frame (1); Roller assembly (3): includes two sets of vertical columns (31) and two sets of horizontal columns (32). The two sets of vertical columns (31) are vertically rotatably connected to the inner wall of the central mounting groove (12). The two sets of horizontal columns (32) are horizontally rotatably connected to the inner wall of the central mounting groove (12) and located on one side of the vertical columns (31). The two sets of vertical columns (31) and the two sets of horizontal columns (32) are all driven by one end of the lifting plate frame (2) extending into the machine frame (1). Among them, arc-shaped seats (33) are symmetrically fixedly connected at corresponding positions on the surfaces of the two sets of vertical columns (31) and the two sets of horizontal columns (32), and ball bearings (331) are uniformly rotatably connected to the surface of the arc-shaped seats (33). The inner wall of the middle mounting groove (12) is provided with a detection mechanism (34) at the position of each arc seat (33), and the inner wall of the lower mounting groove (13) is provided with a controller (4). The detection mechanism (34) and the hydraulic telescopic rod (100) are electrically connected to the controller (4) through wires to realize the transmission of detection data and the reception of control commands.

2. A marine mooring line wear reducer as claimed in claim 1, characterised in that, The lifting frame (2) includes a plate (21), which is vertically slidably connected to the inner wall of the upper mounting groove (11), and the top of the plate (21) is fixedly connected to the output end of the hydraulic telescopic rod (100); At the bottom of the plate (21) and at the corresponding positions of the two sets of vertical columns (31) and the two sets of horizontal columns (32), a first limiting post (22) and a second limiting post (23) are fixedly connected respectively. The two ends of the plate (21) extend into the machine frame (1) and are fixedly connected to a drive rod frame (24). The drive rod frame (24) is located between the vertical column (31) and the horizontal column (32). Both sides of the drive rod frame (24) are integrally formed with teeth (25).

3. A marine mooring line wear reducer as claimed in claim 2, characterised in that, The first limiting post (22) is a transmission key post, and the second limiting post (23) is a transmission cylinder; Two sets of teeth (25) are provided at intervals along the height direction on the surface of the drive rod frame (24) near the side of the vertical column (31); On the surface of the drive rod frame (24) near the side of the horizontal column (32), there is a set of teeth (25), and the projection of the set of teeth (25) in the height direction of the drive rod frame (24) is located between the interval area of ​​the two sets of teeth (25) on the side of the vertical column (31).

4. A marine mooring line wear reducer as claimed in claim 2, characterised in that, The top and bottom of the vertical column (31) are coaxially fixedly connected with worm gears (311), and each worm gear (311) is rotatably connected to one side of a worm (312). The worm gears (311) and worms (312) are meshed together. The inner wall of the frame (1) is symmetrically fixedly connected with a first sleeve (313). The inner wall of the first sleeve (313) is provided with a first one-way transmission device (314). One end of the first one-way transmission device (314) is fixedly connected to one end of the worm (312), and the other end extends through the outside of the first sleeve (313) and is coaxially fixedly connected with a first drive gear (315). The first drive gear (315) meshes with the toothed portion (25) on the side near the vertical column (31); The vertical column (31) and the worm gear (311) are coaxially provided with a keyway (316), and the keyway (316) is connected along the axial direction of the vertical column (31) and the worm gear (311). The keyway (316) is positioned corresponding to the first limiting post (22), and one end of the first limiting post (22) is slidably connected to the inner wall of the keyway (316) in the vertical direction.

5. A marine mooring line wear reducer as claimed in claim 2, characterised in that, The horizontal column (32) has symmetrically formed column grooves (321) on its surface, and is located outside the arc-shaped seat (33); The column groove (321) corresponds to the position of the second limiting post (23), and one end of the second limiting post (23) is slidably connected to the inner wall of the column groove (321) in the vertical direction; The inner wall of the frame (1) is symmetrically fixed with a second sleeve (322), the second sleeve (322) is sleeved on the outside of the central axis of the cross column (32), and a second one-way transmission device (323) is provided on its inner wall; One end of the second one-way transmission device (323) is connected to one end of the central shaft of the cross column (32), and the other end extends through the outside of the second sleeve (322) and is coaxially fixedly connected to the second drive gear (324); The second drive gear (324) meshes with the toothed portion (25) on the side near the cross column (32).

6. A marine mooring line wear reducer as claimed in claim 1, characterised in that, The detection mechanism (34) includes a base and a wear detection sensor. The base is fixedly connected to the inner wall of the mounting groove (12). The wear detection sensor is evenly arranged on the side surface of the base facing the ball (331). The wear detection sensor is a laser displacement sensor, and each wear detection sensor corresponds one-to-one with the ball (331) on the surface of the arc-shaped seat (33) to detect the surface wear and dimensional changes of the ball (331).

7. A marine mooring line wear reducer as claimed in claim 1, characterised in that, It also includes an audible and visual alarm (200), which is fixedly connected to the top of the frame (1) by bolts. The audible and visual alarm (200) is electrically connected to the controller (4) by wires to realize the transmission of abnormal detection data and the reception of alarm control commands.

8. A marine mooring line wear reducer as claimed in claim 1, characterised in that, The bottom side of the lower mounting groove (13) is provided with a storage cavity in the horizontal direction. The storage cavity is used to store the arc-shaped seat (33) on which the ball (331) is installed and maintenance tools. A locking plate (300) is rotatably connected to the outer port of the storage cavity via a hinge. The locking plate (300) is detachably connected to the port edge of the storage cavity via a lock to achieve the closing and opening of the storage cavity.

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