A double-drum winch for recovering snorkeling buoys

Abstract

The invention discloses a double-drum winch for recovering a buoy, belonging to the technical field of underwater equipment recovery. The double-drum winch comprises a frame, a drum is installed above the frame, a shaft body connected to the frame for rotation is fixed to the drum, the frame is provided with a driver for driving the shaft body to rotate, the drum comprises a first drum body and a second drum body connected coaxially, the first drum body and the second drum body are provided with an annular baffle at the connection and the end, a winding space for surrounding the buoy is formed between the first drum body and the annular baffle, a winding space for surrounding the shallow buoy is formed between the second drum body and the annular baffle, the shaft body is connected with a driven wheel, the driven wheel is connected to the outside of the drum, the driver comprises a plurality of motors arranged around the area below the driven wheel, and the output end of the motor is provided with a driving wheel engaged with the driven wheel. The invention has a compact structure, a reasonable layout, and can realize stable and rapid recovery of buoys in harsh environments.

Description

Technical Field

[0001] The invention relates to the technical field of underwater equipment recovery, and in particular to a double-drum winch for recovering a buoy. Background Art

[0002] With the increasing attention paid to marine resources and the acceleration of marine development, a series of marine detection equipment used in the fields of marine research, seabed resource development, marine monitoring and military have emerged in recent years. Among them, the monitoring equipment used in the ocean usually includes buoys and submerged buoys. The buoys float on the water surface to achieve positioning and deployment, and the submerged buoys are located at a certain depth underwater and are equipped with a variety of monitoring instruments and acoustic releasers. Ships on the sea surface send corresponding signal sound waves to the releaser, and the releaser releases the anchor at the bottom. The entire submerged buoy floats up, and then the staff recovers the buoys and submerged buoys.

[0003] At present, the degree of mechanical automation of buoy recovery operations is not high, and the operation method is backward. During the buoy recovery operation, personnel usually need to use a rope to hook the buoy or a long hook on the side of the open deck without guardrails. For large buoys, personnel need to jump directly onto the buoy or approach the buoy through a small boat, and then fasten the hook to the buoy. Finally, the rope body is wound by a winch so that the buoy is towed onto the ship. The towing operation is a typical operation. Compared with other offshore operations, the dynamic behavior of the towing operation is very different. During the towing operation, the high operating speed of the relatively long towline is at hand. When the towline is released and recovered, the towline is changing direction. In addition, when the towline is slack, the towline may be subjected to impact loads, affecting the life of related power components.

[0004] The patent with application number CN202080035051.1 discloses a towing winch system and a method for performing towing operations, especially for assisting ships in escort operations through waterways. The winch system is used to control the release and recovery of the towing cable during the towing operation. The invention drives the drum by arranging multiple motors, so that the system can distribute the driving force according to the specific working conditions, which is conducive to increasing the life and operational continuity of the towing winch system. Due to the changeable climate and marine environment at sea, the invention still has the following room for technical improvement: when the snorkeling buoy is subject to strong winds and waves at sea, the dragging force of the rope on the drum is large and the orientation is uncertain, which is easy to interfere with the drum and the motor, affecting the stability of the recovery. Summary of the invention

[0005] The purpose of the present invention is to provide a double-drum winch for recovering a buoy with high control stability and long service life.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0007] A double-drum winch for recovering a buoy comprises: a frame, a drum is installed on the frame, a shaft body connected to the frame is fixed to the drum, and the frame is provided with a driver for driving the shaft body to rotate. A rope connected to the buoy is installed on the drum, and the driver drives the drum to rotate by driving the shaft body to rotate, and the rope is wound on the drum, so that the drum recovers the buoy.

[0008] Preferably, the reel comprises a first cylinder and a second cylinder coaxially connected, and an annular baffle is provided at the connection point and the end of the first cylinder and the second cylinder, a winding space for surrounding the buoy is formed between the first cylinder and the annular baffle, and a winding space for surrounding the shallow marker is formed between the second cylinder and the annular baffle. The snorkeling buoy includes a buoy and a submerged buoy arranged from the sea surface to the seabed. The buoy is connected to the first cylinder by a steel wire rope. When recovering a complete set of deep-sea snorkeling buoy system, the first cylinder and the second cylinder are rotated to form a traction transition for the snorkeling buoy, wherein the steel wire rope connected to the buoy is firstly wound between the first cylinder and the annular baffle. After the buoy is recovered, the polypropylene rope connected to the submerged buoy is wound between the second cylinder and the annular baffle. The above scheme can be used for recovering the polypropylene rope when recovering the submerged buoy, and can also be used as a traction device to drag the buoy to move on the sea surface, realizing graded recovery, facilitating the storage and disassembly of components, and being conducive to graded release when the snorkeling buoy is deployed again, which can reduce the probability of rope entanglement and jamming. The above scheme enhances the compactness of the winch and reduces the space occupied by the winch on the rear deck of the hull.

[0009] Preferably, the shaft is connected to a driven wheel, which is connected to the outside of the drum, and the driver includes a plurality of motors arranged around the area below the driven wheel, and the output end of the motor is provided with a driving wheel engaged with the driven wheel. The plurality of motors provide power to the driven wheel through the driving wheel, and the sailing ship will adjust the course appropriately to ensure that the buoy is in a suitable position for easy recovery. When the strong air current and ocean current at sea act on the buoy, the wire rope connected to the buoy will continuously change the pulling direction on the drum, causing the drum to vibrate, and the vibration interference is transmitted to the driving wheel and then to the motor through the driven wheel. On the one hand, the vibration interference is dispersed by multiple motors to avoid the concentrated transmission of interference and thus reduce the life of the motor. On the other hand, since the plurality of driving wheels are arranged in a circular array in the area below the driven wheel, it is beneficial to reduce the possibility of failure of power transmission of a single driven wheel, and it is beneficial to increase the life of the motor, the driving wheel and the driven wheel.

[0010] A plurality of driving gears are positioned in the lower half of the driven gear, so that the reel, the shaft body and the driven gear can be lifted upward and away from the driving gear as a whole, and disassembly is achieved without removing the motor from the frame, thereby improving the convenience of assembly.

[0011] Preferably, there is a gap between the shaft body and the inner wall of the drum and support members are symmetrically arranged, the support members include an inner arc plate and an outer arc plate arranged on one side of the shaft body, the inner arc plate cooperates with the shaft body, the outer arc plate is connected to the outside of the inner arc plate and forms a sleeve, there is a gap between the outer arc plate and the inner wall of the drum, and the outer arc plate is surrounded by a top plate that can abut the inner wall of the drum. The inner arc plate is sleeved on the outside of the shaft body, and the multiple top plates on the outer arc plate abut against the inner side of the drum. On the one hand, elastic support of the shaft body to the middle part of the inner side of the drum is formed, thereby improving the internal structural strength of the drum. On the other hand, when the rope drags and causes the drum to shake violently, the deformation of the top plate can consume the vibration interference transmitted from the drum to the shaft body, thereby reducing the possibility of wear caused by the jumping of the driven wheel relative to the driving wheel, and at the same time reducing interference with the motor and improving the life of parts. The connection of the support on the shaft body also reduces the eccentric load of the shaft body at the end where the driving member is provided, thereby stabilizing the rotational coaxiality of the shaft body and the drum, and also increasing the strength of the shaft body's own parts, thereby reducing the possibility of shaft breakage or deformation, and improving the operating stability of the winch.

[0012] Multiple top plates abut against the inner wall of the drum to achieve tensioning of the sleeve between the shaft and the drum. The heat generated by the motor is transferred to the shaft through the driving wheel and the driven wheel. The heat can be transferred to the drum through the sleeve, and heat is dissipated through the drum wall in contact with the external airflow, which is conducive to continuous and stable operation of the motor and increases its service life. It also improves the safety of buoy recovery under high-intensity working conditions.

[0013] Preferably, the outer arc plate is provided with a retaining ring at the end surface, the retaining ring cooperates with the inner wall of the reel, an extension plate is symmetrically provided inside the retaining ring, and a column is symmetrically provided on the extension plate, and the column is used for adjacent sleeves to be in close contact with each other. The sleeves symmetrical outside the shaft body can cooperate with each other to form a tension connection between the outside of the shaft body and the inside of the reel, and the ends of adjacent sleeves can be snapped into the column, so that the sleeves fit closely to each other, and the two sleeves can be spliced ​​outside the shaft body without the need for fasteners, which is convenient for assembling the support member and the shaft body;

[0014] Since the retaining ring is arranged in cooperation with the inner wall of the drum, a closed cavity can be formed between the retaining ring, the outer arc plate, the top plate and the inner wall of the drum, and the closed cavity is arranged around the outer side of the outer arc plate, the retaining ring realizes the close connection between the sleeve body and the shaft body through the column body, and can form multiple closed cavities after assembly to consume the vibration interference outside the drum, further reduce the transmission of interference to the shaft body and the driving member, and is conducive to improving the driving stability. The sealed cavity is obtained by assembly rather than directly obtained by processing, which reduces the processing difficulty;

[0015] The sealed cavity formed can also disperse the heat of the shaft and transfer it to the wall of the drum in contact with the external air, thereby expanding the heat dissipation space without increasing the contact area, improving the heat dissipation effect, and further increasing the life of the parts.

[0016] Preferably, the retaining ring is provided with an inclined surface on the outer edge, which facilitates the retaining ring to enter the inner wall of the reel for assembly, thereby reducing the possibility of wear during the assembly process.

[0017] Preferably, the outer curved wall of the drum is provided with a groove around the axis direction, the groove extends along the axis direction of the shaft body, and air holes are provided at intervals in the groove, and the air holes are connected to the inside of the drum. The provision of the groove can reduce the probability of the recovery rope body sliding back and forth on the drum, on the one hand, reducing the local force of the rope body on the drum and preventing the sleeve from deforming, and at the same time stabilizing the position of the rope body on the drum, thereby improving the efficiency of posture correction during the buoy recovery process;

[0018] When the drum winds up the rope, the water vapor carried by the sea waves and the water attached to the rope can adhere to the outer wall of the drum, and part of the water can be trapped in the groove.

[0019] Preferably, a protective member is hinged above the frame, and the protective member can cover the top of the reel to form a shield.

[0020] When not in use, the guard can form a protection above the drum and the motor to prevent damage to the winch caused by flying marine creatures, and also reduce the possibility of bird droppings contaminating the drum.

[0021] Preferably, the frame is provided with a brake for braking the rotation of the shaft body, the brake includes a brake disc and a plurality of hydraulic calipers, the brake disc is fixed to the outer side of the reel away from the driver, and the plurality of hydraulic calipers are arranged in cooperation with the brake disc. The hydraulic caliper has symmetrically arranged clamping blocks, which are arranged on both sides of the brake disc to clamp the brake disc to achieve braking. The hydraulic caliper is connected to a pump station, which is separated from the frame and located on one side of the frame. The hydraulic caliper constrains the brake disc to reduce the torque of the reel when it stops in the forward and reverse rotation process, which helps to improve the life of the parts.

[0022] Compared with the prior art, the present invention has the following beneficial effects: multiple motors and driving wheels are arranged under the driven wheel, which improves the transmission stability and is easy to disassemble and install; the shaft is connected to the middle part of the reel through a support member, which reduces the side load and improves the structural strength of the reel; the shaft can realize the consumption of vibration interference through the deformation of the top plate, thereby protecting the life of components; the retaining ring cooperates with the top plate to form multiple sealed cavities outside the outer guard plate, which can further absorb vibration interference and improve transmission stability, and can also effectively absorb heat to achieve heat dissipation and improve the working strength of the shaft; the groove can intercept water to assist in heat dissipation, and can also scrape off rope attachments to achieve self-cleaning; the groove reduces the slip frequency of the rope and improves the efficiency of snorkeling buoy orientation correction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0024] Figure 1 It is an overall schematic diagram of a double-drum winch for recovering snorkeling buoys;

[0025] Figure 2 It is a schematic diagram of the driving component structure;

[0026] Figure 3 is a schematic diagram of the brake component structure;

[0027] Figure 4 It is a cross-sectional schematic diagram of the reel;

[0028] Figure 5 is a cross-sectional schematic diagram of a support member;

[0029] Figure 6 Schematic diagram of the retaining ring structure;

[0030] Figure 7 Schematic diagram of the protective component structure.

[0031] Figure numbers: frame 1; reel 2; first cylinder 21; second cylinder 22; annular baffle 23; shaft 3; driven wheel 31; driver 4; motor 41; driving wheel 42; brake 5; brake disc 51; hydraulic caliper 52; support member 6; inner arc plate 61; outer arc plate 62; top plate 63; retaining ring 64; extension plate 65; cylinder 66; inclined surface 67; groove 7; air hole 71; protective member 8; side plate 81; connecting rod 82; roller 83. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0034] A double-drum winch for recovering a buoy comprises a frame 1, a drum 2 is mounted on the frame 1, a shaft 3 rotatably connected to the frame 1 is fixed to the drum 2, and the frame 1 is provided with a driver 4 for driving the shaft 3 to rotate.

[0035] A rope connected to a snorkeling buoy is installed on the drum 2. The driver 4 drives the drum 2 to rotate by driving the shaft 3. The rope is wound around the drum 2, so that the drum 2 can recover the snorkeling buoy.

[0036] The reel 2 includes a first cylinder body 21 and a second cylinder body 22 that are coaxially connected. An annular baffle 23 is provided at the connection point and the end of the first cylinder body 21 and the second cylinder body 22. A winding space for surrounding a buoy is formed between the first cylinder body 21 and the annular baffle 23. A winding space for surrounding a shallow marker is formed between the second cylinder body 22 and the annular baffle 23.

[0037] The buoy includes a buoy and a submerged buoy arranged from the sea surface to the seabed. The buoy is connected to the first cylinder 21 by a steel wire rope. When a complete set of deep-sea buoy systems is recovered, the first cylinder 21 and the second cylinder 22 rotate to form a traction transition for the buoy, wherein the steel wire rope connected to the buoy is firstly wound between the first cylinder 21 and the annular baffle 23. After the buoy is recovered, the polypropylene rope connected to the submerged buoy is wound between the second cylinder 22 and the annular baffle 23. The above scheme can be used for the recovery of the polypropylene rope when recovering the submerged buoy, and can also be used as a traction device to drag the buoy to move on the sea surface, realizing graded recovery, facilitating the storage and disassembly of components, and facilitating the graded release when the buoy is put again, which can reduce the probability of rope winding and jamming. The above scheme enhances the compactness of the winch and reduces the space occupied by the winch on the rear deck of the hull. .

[0038] The shaft body 3 is connected to a driven wheel 31, which is connected to the outside of the drum 2. The driver 4 includes a plurality of motors 41 arranged around the area below the driven wheel 31, and the output end of the motor 41 is provided with a driving wheel 42 engaged with the driven wheel 31. The plurality of motors 41 provide power to the driven wheel 31 through the driving wheel 42. The sailing ship will adjust the course appropriately to ensure that the buoy is in a suitable position for easy recovery. When the strong air current and ocean current at sea act on the buoy, the wire rope connected to the buoy will continuously change the pulling direction on the drum 2, causing the drum 2 to vibrate. The vibration interference is transmitted to the driving wheel 42 and then to the motor 41 through the driven wheel 31. On the one hand, the vibration interference is dispersed by the plurality of motors 41 to avoid the concentrated transmission of interference and the shortening of the life of the motor 41. On the other hand, since the plurality of driving wheels 42 are arranged in a circular array in the area below the driven wheel 31, it is beneficial to reduce the possibility of failure of power transmission of a single driven wheel 31, and it is beneficial to increase the life of the motor 41, the driving wheel, and the driven wheel 31.

[0039] Multiple driving gears are positioned in the lower half of the driven gear, so that the reel 2, the shaft 3 and the driven gear can be lifted upward and away from the driving gear as a whole for disassembly without removing the motor 41 from the frame 1, thereby improving the convenience of assembly.

[0040] There is a gap between the shaft body 3 and the inner wall of the reel 2 and support members 6 are symmetrically arranged. The support members 6 include an inner arc plate 61 and an outer arc plate 62 arranged on one side of the shaft body 3. The inner arc plate 61 cooperates with the shaft body 3, and the outer arc plate 62 is connected to the outside of the inner arc plate 61 to form a sleeve. There is a gap between the outer arc plate 62 and the inner wall of the reel 2. The outer arc plate 62 is surrounded by a top plate 63 that can abut the inner wall of the reel 2. The inner arc plate 61 is sleeved on the outside of the shaft body 3, and abuts against the inner side of the drum 2 through multiple top plates 63 on the outer arc plate 62. On the one hand, elastic support of the shaft body 3 to the middle of the inner side of the drum 2 is formed, thereby improving the internal structural strength of the drum 2. On the other hand, when the rope dragging causes the drum 2 to shake violently, the deformation of the top plate 63 can consume the vibration interference transmitted from the drum 2 to the shaft body 3, thereby reducing the possibility of wear caused by the jumping of the driven wheel 31 relative to the driving wheel 42, and at the same time reducing the interference with the motor 41, thereby improving the life of parts. The connection of the support member 6 on the shaft body 3 also reduces the eccentric load of the shaft body 3 at the end where the driving member is provided, thereby stabilizing the rotational coaxiality of the shaft body 3 and the drum 2, and also increasing the strength of the parts of the shaft body 3 itself, thereby reducing the possibility of breakage or deformation of the shaft body 3, thereby improving the operating stability of the winch.

[0041] Multiple top plates 63 abut against the inner wall of the reel 2 to achieve tensioning of the sleeve between the shaft body 3 and the reel 2. The heat generated by the motor 41 is transferred to the shaft body 3 through the driving wheel 42 and the driven wheel 31. The heat can be transferred to the reel 2 through the sleeve, and heat is dissipated through the wall of the reel 2 in contact with the external airflow, which is beneficial to the continuous and stable operation of the motor 41 and increases its service life. At the same time, it also improves the safety of recovering the buoy under high-intensity working conditions.

[0042] The outer arc plate 62 is provided with a retaining ring 64 at the end surface. The retaining ring 64 cooperates with the inner wall of the reel 2. An extension plate 65 is symmetrically provided inside the retaining ring 64. The extension plate 65 is symmetrically provided with a column 66. The column 66 is used for adjacent sleeves to be in close contact with each other.

[0043] The symmetrical sleeves outside the shaft body 3 can cooperate with each other to form a tension connection between the outer side of the shaft body 3 and the inner side of the reel 2. The ends of the adjacent sleeves can be snapped into the column 66, so that the sleeves fit tightly to each other. The two sleeves can be spliced ​​outside the shaft body 3 without the need for fasteners, which facilitates the assembly of the support member 6 and the shaft body 3.

[0044] Since the retaining ring 64 is arranged in cooperation with the inner wall of the reel 2, a closed cavity can be formed between the retaining ring 64, the outer arc plate 62, the top plate 63 and the inner wall of the reel 2, and the closed cavity is arranged around the outer side of the outer arc plate 62, the retaining ring 64 realizes the close connection between the sleeve body and the shaft body 3 through the column 66, and can form multiple closed cavities after assembly to consume the vibration interference outside the reel 2, further reduce the transmission of interference to the rotating shaft and the driving member, and is conducive to improving the driving stability. The sealed cavity is obtained by assembly rather than directly obtained by processing, which reduces the processing difficulty;

[0045] The sealed cavity formed can also disperse the heat of the rotating shaft and transfer it to the wall of the reel 2 in contact with the external air, thereby expanding the heat dissipation space without increasing the contact area, improving the heat dissipation effect, and further increasing the life of the parts.

[0046] The retaining ring 64 is provided with an inclined surface 67 at the outer edge. The inclined surface 67 at the outer edge facilitates the retaining ring 64 to enter the inner wall of the reel 2 to form an assembly, thereby reducing the possibility of wear during the assembly process.

[0047] A groove 7 is arranged around the outer curved wall of the reel 2 along the axial direction. The groove 7 extends along the axial direction of the shaft body 3 . Air holes 71 are arranged at intervals in the groove 7 . The air holes 71 are connected to the interior of the reel 2 .

[0048] The provision of the groove 7 can reduce the probability of the recovery rope body sliding back and forth on the drum 2, which reduces the local force of the rope body on the drum 2 and prevents the sleeve from deforming. At the same time, it also stabilizes the position of the rope body on the drum 2 and improves the efficiency of the attitude correction during the buoy recovery process.

[0049] When the drum 2 is winding the rope body, the water vapor carried by the sea waves and the water attached to the rope body can adhere to the outer wall of the drum 2, and part of the water can be retained in the groove 7 to further achieve heat dissipation; when the wire rope is wound on the drum 2, the edge of the groove 7 can scrape off and retain part of the attachments on the wire rope, achieving self-cleaning of the wire rope, thereby reducing the possibility of the wire rope being entangled and stuck on the drum 2.

[0050] A protective member 8 is hinged on the top of the frame 1, and the protective member 8 can cover the top of the reel 2 to form a shield.

[0051] When not in use, the protective member 8 can form a protection above the drum 2 and the motor 41 to prevent marine flying creatures from colliding with the winch and causing damage, while also reducing the possibility of bird droppings contaminating the drum 2.

[0052] The guard 8 comprises symmetrically arranged side plates 81, which are hinged at the sides of the frame 1, and connecting rods 82 are arranged between the side plates 81, and the connecting rods 82 are rotatably connected to rollers 83, and the adjacent rollers 83 are arranged in cooperation. The frame 1 is provided with a block at the side to limit the side plates 81.

[0053] When the winch is not in use, the protective member 8 is located above the drum 2, and a plurality of rollers 83 arranged in a rolling manner cooperate with each other to form a protection above the drum 2, which can block bird droppings, and at the same time, the rollers 83 of the rollers 83 can consume the impact force above, thereby realizing the protection of the drum 2 and the motor 41;

[0054] When the buoy needs to be recovered, the side plate 81 is swung down. At this time, multiple rollers 83 form a connection and support between the splint and the frame 1. In the process of recovering the rope body and the buoy returning to the frame 1, rolling support is achieved by contacting the rollers 83, thereby reducing the friction between the accessory mark and the ground. On the one hand, it is beneficial to reduce the wear of the rope body and the buoy and reduce maintenance costs. At the same time, it converts sliding friction into rolling friction and improves recovery efficiency.

[0055] The frame 1 is provided with a brake 5 for braking the rotation of the shaft 3 . The brake 5 includes a brake disc 51 and a plurality of hydraulic calipers 52 . The brake disc 51 is fixed to the outer side of the reel 2 away from the driver 4 . The plurality of hydraulic calipers 52 are cooperatively arranged below the brake disc 51 .

[0056] The hydraulic caliper 52 has symmetrically arranged clamping blocks, which are arranged on both sides of the brake disc 51 for clamping the brake disc 51 to achieve braking. The hydraulic caliper 52 is connected to a pump station, which is separated from the frame 1 and is located on one side of the frame 1. The hydraulic caliper 52 constrains the brake disc 51 to reduce the torque at the moment when the drum 2 stops during the forward and reverse rotation processes, which helps to improve the life of parts. When it is necessary to stabilize the rope body, that is, when the drum 2 maintains its posture, the hydraulic caliper 52 that clamps the brake disc 51 and the drive component act on the two ends of the drum 2 respectively.

[0057] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any form. Any technical personnel in this field may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention.

[0058] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A double-drum winch for recovering a buoy, comprising: A frame (1), wherein a drum (2) is mounted above the frame (1), wherein the drum (2) is characterized in that: a shaft (3) rotatably connected to the frame (1) is fixed to the drum (2), the frame (1) is provided with a driver (4) for driving the shaft (3) to rotate, the drum (2) comprises a first cylinder (21) and a second cylinder (22) coaxially connected, an annular baffle (23) is provided at the connection and at the end of the first cylinder (21) and the second cylinder (22), a winding space for surrounding a wire rope is formed between the first cylinder (21) and the annular baffle (23), a winding space for surrounding a rope is formed between the second cylinder (22) and the annular baffle (23), a spacing is provided between the shaft (3) and the inner wall of the drum (2), and support members (6) are symmetrically arranged, the support member (6) comprises an inner arc plate (61) and an outer arc plate (62) arranged on one side of the shaft (3), the inner arc plate (61) cooperates with the shaft (3), the The outer arc plate (62) is connected to the outer side of the inner arc plate (61) to form a sleeve body, the outer arc plate (62) is spaced from the inner wall of the reel (2), a top plate (63) is arranged around the outer arc plate (62) and can abut against the inner wall of the reel (2), the outer arc plate (62) is provided with a retaining ring (64) at the end surface, the retaining ring (64) cooperates with the inner wall of the reel (2), an extension plate (65) is symmetrically arranged on the inner side of the retaining ring (64), and the extension plate (65) is symmetrically provided with a column The cylindrical body (66) is used for adjacent sleeve bodies to be in close contact with each other. The outer curved wall of the reel (2) is provided with a groove (7) along the axial direction. The groove (7) extends along the axial direction of the shaft body (3). Air holes (71) are arranged at intervals in the groove (7). The air holes (71) are connected to the interior of the reel (2). A protective member (8) is hinged on the top of the frame (1). The protective member (8) can cover the top of the reel (2) to form a shield.

2. A double-drum winch for recovering a buoy according to claim 1, characterized in that: The shaft (3) is connected to a driven wheel (31), and the driven wheel (31) is connected to the outside of the reel (2). The driver (4) comprises a plurality of motors (41) arranged around a region below the driven wheel (31), and an output end of the motor (41) is provided with a driving wheel (42) engaged with the driven wheel (31).

3. A double-drum winch for recovering a buoy according to claim 1, characterized in that: The retaining ring (64) is provided with an inclined surface (67) on the outer edge.

4. A double-drum winch for recovering a buoy according to claim 1, characterized in that: The frame (1) is provided with a brake (5) for braking the rotation of the shaft (3), the brake (5) comprising a brake disc (51) and a plurality of hydraulic calipers (52), the brake disc (51) being fixed to the outer side of the reel (2) away from the driver (4), and the plurality of hydraulic calipers (52) being arranged in cooperation with the brake disc (51) below the brake disc.

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