One-way damping cable guiding and arranging device for underwater winch

Abstract

A one-way damping cable guiding and arranging device for an underwater winch comprises a frame assembly, a cable pressing mechanism and a guiding wheel assembly are installed on the frame assembly, and the frame assembly structurally comprises frame side plates distributed at intervals, a plurality of guiding bushings and a transmission lead screw bushing which penetrate through and are connected with the frame side plates on the two sides. The cable pressing mechanism structurally comprises a limiting roller shaft and a cable pressing roller shaft, a limiting roller is mounted on the limiting roller shaft, a cable pressing roller is mounted on the cable pressing roller shaft, the cable pressing mechanism further comprises a pre-tightening connecting rod, and the pre-tightening connecting rod, the cable pressing roller shaft and the cable pressing roller are combined into a whole and swing around the limiting roller shaft; the guide wheel assembly structurally comprises a pulley shaft, a guide pulley is installed on the pulley shaft in a matched mode through a one-way rolling bearing, when the winch unwinds the cable, the device rotates flexibly and is small in resistance, and when the winch winds the cable, the device provides certain resistance on a cable guiding path of the steel cable and maintains certain cable winding tension of the steel cable. The device is also suitable for high-speed heavy-load and deep-sea high-pressure working environments.

Description

Technical Field

[0001] The invention relates to the technical field of diving equipment, in particular to a one-way damping cable guide and cable arrangement device for an underwater winch. Background Art

[0002] The underwater winch is equipped with diving equipment and works in deep sea environment. The diving equipment is deployed and recovered by the deck winch of the mother ship. The underwater winch winds the steel cable to guide the diving equipment along the steel cable path to approach the underwater target (the end of the steel cable is connected to the underwater target), and assists the diving equipment to dock with the target. The deck winch, diving equipment and underwater target are connected in series by armored cables and steel cables.

[0003] The cable-releasing function of the underwater winch is realized by the deck winch, specifically the deck winch cable-collecting. The underwater winch passively releases the cable under the action of the pulling force on the water surface. This working condition requires the relevant cable guide devices on the underwater winch cable path to be flexible and have low resistance. When the underwater winch collects the cable, the steel cable needs to maintain a certain tension to ensure that the cable is stored neatly. In this working condition, the relevant cable guide devices on the underwater winch cable path need to provide a certain cable-collecting resistance. The underwater winch is high-speed and heavy-loaded and works in a deep-sea environment. It is necessary to fully consider the requirements of anti-corrosion and pressure bearing. The common cable guide mechanism on land cannot meet the use requirements. Summary of the invention

[0004] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a one-way damping cable guide and rope arrangement device for an underwater winch, so that when the winch releases the cable, the device can rotate flexibly with little resistance. When the winch reels in the cable, the device provides a certain resistance on the steel cable guide path to maintain a certain reeling tension for the steel cable. In addition, the device is also adaptable to high-speed, heavy-load, deep-sea and high-pressure working environments.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A one-way damping cable guide and cable arrangement device for an underwater winch comprises a frame assembly, on which a cable pressing mechanism and a guide wheel assembly are installed.

[0007] The structure of the frame assembly is as follows: it includes frame side plates distributed at intervals, the bottom front end and the upper rear end of the frame side plates are respectively installed with limit frames through fasteners, and the inlet and outlet ends of the steel cable are formed at the limit frames; a plurality of guide bushings and a transmission screw bushing are arranged on the frame side plates penetrating and connecting the two sides, the guide bushing cooperates with the winch guide rod to play a guiding role, and the transmission screw bushing cooperates with the winch screw to drive the cable guide and rope arrangement device to reciprocate along the winch guide rod;

[0008] The structure of the cable pressing mechanism is as follows: it includes a limit roller shaft and a cable pressing roller shaft penetrating through the frame side plate, a limit roller is installed on the limit roller shaft, a cable pressing roller is installed on the cable pressing roller shaft, a pre-tightening connecting rod is installed between the limit roller shaft and the cable pressing roller shaft, the pre-tightening connecting rod, the cable pressing roller shaft and the cable pressing roller are combined into a whole and swing around the limit roller shaft; a pre-tightening spring and a pre-tightening screw are installed at the end of the pre-tightening connecting rod, and the pre-tightening screw adjusts the pressure of the pre-tightening spring acting on the end of the pre-tightening connecting rod;

[0009] The structure of the guide wheel assembly is as follows: it includes a pulley shaft, on which a guide pulley is mounted through a one-way rolling bearing.

[0010] When the winch releases the cable, the guide pulley, the bearing seat and the outer ring of the one-way rolling bearing form an integral motion unit, which rotates freely around the inner ring of the one-way rolling bearing and the pulley shaft;

[0011] When the winch is reeling in the cable, the guide pulley, bearing seat, one-way rolling bearing and pulley shaft form an integral motion unit, which rotates around the frame assembly and drives the metal friction plates and nylon damping plates at both ends of the pulley shaft to rotate relative to each other, providing resistance for the winch to reel in the cable.

[0012] Its further technical solution is:

[0013] The frame assembly is matched with the winch guide rod and the driving lead screw to play the role of guiding and arranging cables.

[0014] The frame assembly is a mounting base for the cable pressing mechanism and the guide wheel assembly.

[0015] The limit frame adopts a split structure, and the cross section of the limit frame is a "┏┓" structure.

[0016] The pre-tightening connecting rod is a lever, which applies the amplified pre-tightening force to the steel cable and the guide pulley through the cable pressing roller.

[0017] The inner hole of the guide pulley matches with the outer ring of the one-way rolling bearing.

[0018] The guide wheel assembly also includes two bearing seat side plates, which are symmetrically arranged on both sides of the guide pulley and fastened by screws. The lugs of the bearing seat side plates cooperate with the inner hole of the guide pulley and axially position the outer ring of the one-way rolling bearing.

[0019] The pulley shaft is supported and rotated by sliding bearings at both ends. The sliding bearings are interference fit with the shaft holes of the reinforcement rings. The reinforcement rings are embedded in corresponding holes of the frame side plates and fixed. The nylon damping plate is fastened to the reinforcement ring flange by screws. The metal friction plate is fitted with the nylon damping plate. The metal friction plates are located at both ends of the pulley shaft.

[0020] A spring pressure cover, a spring body and a pre-tightening nut are sequentially installed on the left side of the pulley shaft. The two ends of the spring body are respectively connected to a metal friction plate and a spring pressure cover, and the pre-tightening force is transmitted to the metal friction plate and the nylon damping plate to adjust the friction resistance torque.

[0021] A series of metal filter elements are evenly arranged in the circumferential direction of the bearing seat side plate.

[0022] The beneficial effects of the present invention are as follows:

[0023] The present invention has a compact and reasonable structure and is easy to operate. Through the cooperation between the frame assembly, the cable pressing mechanism and the guide wheel assembly, the frame assembly is composed of parts such as a limit frame, a guide bushing, a drive screw bushing and a frame side plate, which is adapted to the winch guide rod and the drive screw to guide and arrange the cables, and is also the installation base of the cable pressing mechanism and the guide wheel assembly. The cable pressing mechanism is composed of a limit roller shaft, a limit roller, a pre-tightening connecting rod, a cable pressing roller shaft, a cable pressing roller, a pre-tightening spring and a pre-tightening screw, which limits and pre-tightens the steel cable. Under the action of the pre-tightening spring, the cable pressing roller maintains a suitable pre-tightening force between the steel cable and the guide pulley. The guide wheel assembly consists of a guide pulley, a bearing seat side plate, a pulley shaft, a nylon damping plate, a metal friction plate, a one-way rolling bearing, a sliding bearing, a spring assembly, a TC shaft seal, a metal filter element, an O-ring and related fasteners. When the winch releases the cable, the guide pulley rotates around the one-way rolling bearing. When the winch reels in the cable, the guide pulley and the one-way rolling bearing rotate around the sliding bearing as a whole, and at the same time drive the nylon damping plate and the metal friction plate to rotate relative to each other, providing resistance for the winch to reel in the cable. The guide pulley assembly is sealed by an O-ring and a TC shaft seal, and the internal cavity is filled with grease. When floating or diving, the external seawater freely enters the cavity through the metal filter element on the shell, but the grease in the cavity is isolated in the cavity. The overall structure is low-resistance and lightweight, and is suitable for underwater working environments.

[0024] At the same time, the present invention also has the following advantages:

[0025] (1) The one-way damping cable guide and cable arrangement device of the present invention is provided with a cable pressing mechanism and a guide wheel assembly. The steel cable is always in contact with the guide wheel and maintains a suitable pre-pressure. The pre-pressure can be adjusted according to actual requirements to ensure that the guide wheel rotates with the steel cable without slipping during the winch cable collection and release process. The guide wheel assembly uses a one-way rolling bearing as the core component and nests two sets of rotating units, so that when the winch releases the cable, the guide wheel assembly rotates flexibly with low resistance. When the winch retracts the cable, the guide wheel assembly can provide suitable rotation damping according to requirements to ensure that the steel cable inside the winch always maintains a suitable tension and prevents the steel cable from loosening and causing cable disorder.

[0026] (2) The cavity structure of the closed one-way rolling bearing is equipped with a series of stainless steel metal filter elements, so that seawater can flow in and out freely. The internal high-viscosity grease is effectively isolated in the cavity, and the pressure inside and outside the cavity is balanced. The one-way rolling bearing is effectively lubricated and corrosion-resistant without the need to design the cavity into a pressure-resistant structure, or to add additional compensators and high-pressure dynamic seals, or to use stainless steel bearings and sliding bearings. This simplifies the structural composition and improves the movement flexibility and load-bearing capacity of the guide wheel assembly.

[0027] (3) The device of the present invention has a simple structure, high integration, small space occupation, and is easy to be modified on a general winch rope arrangement device. The present invention has a high value of popularization and application, and the function of the device is easy to expand, and can be applied and expanded in the winch field. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention.

[0029] Figure 2 It is the front view of the present invention.

[0030] Figure 3 for Figure 2 Full section view along section AA.

[0031] Figure 4 for Figure 3 A partial view of the .

[0032] Figure 5 for Figure 2 Full cross-sectional view along section BB.

[0033] Among them: 1. Frame assembly; 2. Cable pressing mechanism; 3. Guide wheel assembly;

[0034] 101, limit frame; 102, guide bushing; 103, drive screw bushing; 104, frame side plate;

[0035] 201, limit roller shaft; 202, limit roller; 203, preload connecting rod; 204, cable pressing roller shaft; 205, cable pressing roller; 206, preload spring; 207, preload screw;

[0036] 301. Guide pulley; 302. Bearing seat side plate; 303. Reinforcement ring; 304. Key; 305. Pulley shaft; 306. Sliding bearing; 307. Nylon damping plate; 308. Metal friction plate; 309. One-way rolling bearing; 310. Bushing; 311. Spring gland; 312. Spring body; 313. TC shaft seal; 314. Metal filter element. DETAILED DESCRIPTION

[0037] The specific implementation of the present invention is described below in conjunction with the accompanying drawings.

[0038] like Figure 1-Figure 5 As shown, the one-way damping cable guide and cable arrangement device for underwater winch of this embodiment includes a frame assembly 1, on which a cable pressing mechanism 2 and a guide wheel assembly 3 are installed.

[0039] The structure of the frame assembly 1 is as follows: it includes frame side plates 104 distributed at intervals, the bottom front end and the upper rear end of the frame side plates 104 are respectively installed with limit frames 101 through fasteners, and the inlet and outlet ends of the steel cable are formed at the limit frames 101; a plurality of guide bushings 102 and a transmission screw bushing 103 are arranged on the frame side plates 104 that penetrate and connect the two sides, the guide bushing 102 cooperates with the winch guide rod to play a guiding role, and the transmission screw bushing 103 cooperates with the winch screw to drive the cable guide and rope arrangement device to reciprocate along the winch guide rod;

[0040] The structure of the cable pressing mechanism 2 is as follows: it includes a limiting roller shaft 201 and a cable pressing roller shaft 204 that penetrate the frame side plate 104, a limiting roller 202 is installed on the limiting roller shaft 201, a cable pressing roller 205 is installed on the cable pressing roller shaft 204, a pre-tightening connecting rod 203 is installed between the limiting roller shaft 201 and the cable pressing roller shaft 204, the pre-tightening connecting rod 203, the cable pressing roller shaft 204 and the cable pressing roller 205 are combined into a whole and swing around the limiting roller shaft 201; a pre-tightening spring 206 and a pre-tightening screw 207 are installed at the end of the pre-tightening connecting rod 203, and the pre-tightening screw 207 adjusts the pressure of the pre-tightening spring 206 acting on the end of the pre-tightening connecting rod 203;

[0041] The structure of the guide wheel assembly 3 is as follows: it includes a pulley shaft 305, on which a guide pulley 301 is mounted via a one-way rolling bearing 309.

[0042] When the winch releases the cable, the guide pulley 301, the bearing seat and the outer ring of the one-way rolling bearing 309 form an integral motion unit, which rotates freely around the inner ring of the one-way rolling bearing 309 and the pulley shaft;

[0043] When the winch is reeling in the cable, the guide pulley 301, the bearing seat, the one-way rolling bearing 309 and the pulley shaft 305 form an integral motion unit, which rotates around the frame assembly 1, and at the same time drives the metal friction plate 308 and the nylon damping plate 307 at both ends of the pulley shaft 305 to rotate relative to each other, providing resistance for the winch to reel in the cable.

[0044] The frame assembly 1 is adapted to the winch guide rod and the driving screw to play the role of guiding and arranging cables.

[0045] The frame assembly 1 is a mounting base for the cable pressing mechanism 2 and the guide wheel assembly 3 .

[0046] The limiting frame 101 adopts a split structure, and the cross section of the limiting frame 101 is a “┏┓” structure.

[0047] The pre-tightening connecting rod 203 is a lever, which applies the amplified pre-tightening force to the steel cable and the guide pulley 301 through the cable pressing roller 205 .

[0048] The inner hole of the guide pulley 301 cooperates with the outer ring of the one-way rolling bearing 309 .

[0049] The guide wheel assembly 3 also includes a bearing seat side plate 302. There are two bearing seat side plates 302, which are symmetrically arranged on both sides of the guide pulley 301 and fastened by screws. The lugs of the bearing seat side plates 302 cooperate with the inner hole of the guide pulley 301 and axially position the outer ring of the one-way rolling bearing 309.

[0050] The pulley shaft 305 is supported and rotated by sliding bearings 306 at both ends. The sliding bearing 306 is interference fit with the shaft hole of the reinforcement ring 303. The reinforcement ring 303 is embedded in the corresponding hole of the frame side plate 104 and fixed. The nylon damping plate 307 is fastened to the flange of the reinforcement ring 303 by screws. The metal friction plate 308 is fitted with the nylon damping plate 307. The metal friction plate 308 is located at both ends of the pulley shaft 305.

[0051] The spring pressure cover 311, the spring body 312 and the pre-tightening nut are installed in sequence on the left side of the pulley shaft 305. The two ends of the spring body 312 are respectively connected to the metal friction plate 308 and the spring pressure cover 311, and the pre-tightening force is transmitted to the metal friction plate 308 and the nylon damping plate 307 to adjust the friction resistance torque.

[0052] A series of metal filter elements 314 are evenly arranged in the circumferential direction of the bearing seat side plate 302 .

[0053] The specific structure and function of the one-way damping cable guide and cable arrangement device for underwater winch described in the present invention are as follows:

[0054] Figure 1 Referring to the composition diagram of the cable guide and rope arrangement device of the present invention, Figure 2 This is the front view of the cable guide and rope arrangement device, which consists of modules such as a frame assembly 1, a cable pressing mechanism 2 and a guide wheel assembly 3.

[0055] The frame assembly 1 is composed of a limit frame 101 , a guide bushing 102 , a transmission screw bushing 103 , a frame side plate 104 and other parts.

[0056] There are two limit frames 101, which are respectively located at the inlet and outlet ends of the frame assembly 1, to guide and limit the steel cable to prevent cable abrasion, cable jumping, etc.

[0057] There are three guide bushings 102, which penetrate and connect the frame side plates 104 on both sides. The guide bushings 102 cooperate with the winch guide rods to play a guiding role.

[0058] The transmission screw bushing 103 cooperates with the winch screw to drive the cable guide and rope arrangement device to reciprocate along the winch guide rod.

[0059] The frame side plate 104 is the main structure of the frame assembly 1 and constitutes a mounting base for the cable pressing mechanism 2 and the guide wheel assembly 3 .

[0060] The cable pressing mechanism 2 is composed of a limiting roller shaft 201 , a limiting roller 202 , a pre-tightening connecting rod 203 , a cable pressing roller shaft 204 , a cable pressing roller 205 , a pre-tightening spring 206 and a pre-tightening screw 207 .

[0061] The limiting roller shaft 201 and the cable pressing roller shaft 204 both penetrate the frame assembly 1 , and the limiting roller 202 rotates around the limiting roller shaft 201 to limit the steel cable to prevent the steel cable from jumping out of the guide pulley 301 when it is loose.

[0062] The cable pressing roller 205 rotates around the cable pressing roller shaft 204 , and the pre-tightening connecting rod 203 , the cable pressing roller shaft 204 and the cable pressing roller 205 are combined into a whole and swing around the limiting roller shaft 201 .

[0063] The preload spring 206 and the preload screw 207 are located at the end of the preload link 203. The preload screw 207 adjusts the pressure of the preload spring 206 on the end of the preload link 203. The preload link 203 is a lever, which applies the amplified preload force to the steel cable and the guide pulley 301 through the cable pressure roller 205.

[0064] Figure 3 is a composition diagram of the guide pulley 301, Figure 4 It is a BB sectional view shown in the main view of the cable guide and rope arrangement device. The guide wheel assembly 3 passes through the frame assembly 1 and uses the frame assembly 1 as the installation base.

[0065] Among them, the guide wheel assembly 3 is composed of parts such as a guide pulley 301, a bearing seat side plate 302, a reinforcement ring 303, a key 304, a pulley shaft 305, a sliding bearing 306, a nylon damping plate 307, a metal friction plate 308, a one-way rolling bearing 309, a sleeve 310, a spring pressure cover 311, a spring body 312, a TC shaft seal 313 and a metal filter element 314.

[0066] The inner hole of the guide pulley 301 matches the outer ring of the one-way rolling bearing 309, and the two are connected by a flat key;

[0067] There are two bearing seat side plates 302, which are symmetrically arranged on both sides of the guide pulley 301 and fastened by screws. The lugs of the bearing seat side plates 302 match the inner holes of the guide pulley 301 and axially position the outer ring of the one-way rolling bearing 309.

[0068] When the winch releases the cable, the one-way rolling bearing 309 rotates freely, and the guide pulley 301, the bearing seat side plate 302 and the outer ring of the one-way rolling bearing 309 form an integral unit and rotate around the inner ring of the one-way rolling bearing 309.

[0069] The inner ring of the one-way rolling bearing 309 and the pulley shaft 305 are connected by a flat key. The pulley shaft 305 is supported by and rotates around the sliding bearings 306 at both ends. The sliding bearing 306 is interference fit with the shaft hole of the reinforcement ring 303. The reinforcement ring 303 is embedded in the corresponding hole of the frame side plate 104 and fixedly connected thereto. The nylon damping plate 307 is fastened to the flange of the reinforcement ring 303 by screws. The metal friction plate 308 is fitted with the nylon damping plate 307. The metal friction plate 308 is located at both ends of the pulley shaft 305 and is connected thereto through rectangular holes.

[0070] The spring pressure cover 311, the spring body 312 and the pre-tightening nut are installed in sequence on the left side of the pulley shaft 305. The two ends of the spring body 312 are respectively connected to the metal friction plate 308 and the spring pressure cover 311, and the pre-tightening force is transmitted to the metal friction plate 308 and the nylon damping plate 307 to adjust the friction resistance torque.

[0071] When the winch is reeling in the cable, the one-way rolling bearing 309 is locked, and the guide pulley 301, the bearing seat side plate 302, the one-way rolling bearing 309, the pulley shaft 305, the metal friction plate 308, the spring pressure cover 311 and the spring body 312 rotate as an integral unit around the sliding bearing 306, the reinforcement ring 303, the nylon damping plate 307 and the corresponding mounting holes on the frame side plate 104. The metal friction plate 308 and the nylon damping plate 307 rotate relative to each other to provide resistance for the winch to reel in the cable.

[0072] The guide pulley 301, the bearing seat side plate 302, the one-way rolling bearing 309, the sleeve 310 and the pulley shaft 305 are composed of sealing parts such as O-rings and TC shaft seals 313 to form a relatively rotatable closed cavity, and the cavity is filled with high-viscosity grease for lubrication and corrosion protection of the one-way rolling bearing 309.

[0073] A series of stainless steel metal filter elements 314 are evenly arranged in the circumferential direction of the bearing seat side plate 302. The internal filter of the metal filter element 314 is sintered by stainless steel powder. The filter with appropriate filtering accuracy can ensure the free flow of external seawater, and the grease is isolated in the cavity and cannot pass through the metal filter element 314.

[0074] When the underwater winch dives, seawater enters the cavity through the metal filter element 314 and backwashes the filter element surface on the inner side of the cavity wall to prevent blockage and maintain the pressure balance inside and outside the cavity; when the underwater winch floats up, the seawater in the cavity is discharged through the metal filter element 314 to maintain the pressure balance inside and outside the cavity. The stainless steel metal filter element 314 has a simple structure and is easy to install, avoiding setting the above cavity as a pressure-resistant structure. The dynamic sealing surface can use a low-resistance and low-pressure sealing ring similar to the TC shaft seal 313 structure. It has a simple structure, flexible and efficient mechanism operation, and is suitable for deep-sea high-speed and heavy-load conditions.

[0075] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any form of modification may be made within the scope of protection of the present invention.

Claims

1. A one-way damping cable guide and cable arrangement device for an underwater winch, characterized in that: The invention comprises a frame assembly (1), on which a cable pressing mechanism (2) and a guide wheel assembly (3) are installed. The structure of the frame assembly (1) is as follows: it comprises frame side plates (104) distributed at intervals, the bottom front end and the upper rear end of the frame side plates (104) are respectively installed with limit frames (101) through fasteners, and the inlet and outlet ends of the steel cable are formed at the limit frames (101); a plurality of guide bushings (102) and a transmission screw bushing (103) are arranged on the frame side plates (104) penetrating and connecting the two sides, the guide bushing (102) cooperates with the winch guide rod to play a guiding role, and the transmission screw bushing (103) cooperates with the winch screw to drive the cable guide and rope arrangement device to reciprocate along the winch guide rod; The cable pressing mechanism (2) has the following structure: it comprises a limiting roller shaft (201) and a cable pressing roller shaft (204) penetrating the frame side plate (104); a limiting roller (202) is installed on the limiting roller shaft (201); a cable pressing roller (205) is installed on the cable pressing roller shaft (204); a pre-tightening connecting rod (203) is installed between the limiting roller shaft (201) and the cable pressing roller shaft (204); the pre-tightening connecting rod (203), the cable pressing roller shaft (204) and the cable pressing roller (205) are combined into a whole and swing around the limiting roller shaft (201); a pre-tightening spring (206) and a pre-tightening screw (207) are installed at the end of the pre-tightening connecting rod (203); the pre-tightening screw (207) adjusts the pressure of the pre-tightening spring (206) acting on the end of the pre-tightening connecting rod (203); The structure of the guide wheel assembly (3) is as follows: it comprises a pulley shaft (305), on which a guide pulley (301) is mounted via a one-way rolling bearing (309). When the winch releases the cable, the guide pulley (301), the bearing seat and the outer ring of the one-way rolling bearing (309) form an integral motion unit, which rotates freely around the inner ring of the one-way rolling bearing (309) and the pulley shaft; When the winch is reeling in the cable, the guide pulley (301), the bearing seat, the one-way rolling bearing (309) and the pulley shaft (305) form an integral motion unit, which rotates around the frame assembly (1) and drives the metal friction plate (308) and the nylon damping plate (307) at both ends of the pulley shaft (305) to rotate relative to each other, thereby providing resistance for the winch to reel in the cable.

2. A one-way damping cable guide and cable arrangement device for an underwater winch according to claim 1, characterized in that: The frame assembly (1) is adapted to the winch guide rod and the transmission lead screw, and plays the role of guiding and arranging cables.

3. A one-way damping cable guide and cable arrangement device for an underwater winch according to claim 1, characterized in that: The frame assembly (1) is a mounting base for the cable pressing mechanism (2) and the guide wheel assembly (3).

4. A one-way damping cable guide and cable arrangement device for an underwater winch according to claim 1, characterized in that: The limiting frame (101) adopts a split structure, and the cross section of the limiting frame (101) is a "┏┓" structure.

5. A one-way damping cable guide and cable arrangement device for an underwater winch according to claim 1, characterized in that: The pre-tightening connecting rod (203) is a lever, which applies the amplified pre-tightening force to the steel cable and the guide pulley (301) through the cable pressing roller (205).

6. A one-way damping cable guide and cable arrangement device for an underwater winch according to claim 1, characterized in that: The inner hole of the guide pulley (301) matches the outer ring of the one-way rolling bearing (309).

7. A one-way damping cable guide and cable arrangement device for an underwater winch according to claim 1, characterized in that: The guide wheel assembly (3) also includes a bearing seat side plate (302). There are two bearing seat side plates (302) symmetrically arranged on both sides of the guide pulley (301) and fastened by screws. The lugs of the bearing seat side plates (302) cooperate with the inner hole of the guide pulley (301) and axially position the outer ring of the one-way rolling bearing (309).

8. A one-way damping cable guide and cable arrangement device for an underwater winch according to claim 1, characterized in that: The pulley shaft (305) is supported and rotated by sliding bearings (306) at both ends. The sliding bearings (306) are interference fit with the shaft holes of the reinforcement rings (303). The reinforcement rings (303) are embedded in corresponding holes of the frame side plates (104) and fixed. The nylon damping plate (307) is fastened to the flange of the reinforcement ring (303) by screws. The metal friction plate (308) is fitted with the nylon damping plate (307). The metal friction plates (308) are located at both ends of the pulley shaft (305).

9. A one-way damping cable guide and cable arrangement device for an underwater winch according to claim 1, characterized in that: A spring pressure cover (311), a spring body (312) and a pre-tightening nut are sequentially installed on the left side of the pulley shaft (305); the two ends of the spring body (312) are respectively connected to a metal friction plate (308) and a spring pressure cover (311), and the pre-tightening force is transmitted to the metal friction plate (308) and the nylon damping plate (307) to adjust the friction resistance torque.

10. A one-way damping cable guide and cable arrangement device for an underwater winch according to claim 7, characterized in that: A series of metal filter elements (314) are evenly arranged in the circumferential direction of the bearing seat side plate (302).

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