Braking device of ship-borne drum winch

Abstract

The present invention discloses a braking device for a ship-borne drum winch, comprising a base, a limit plate fixedly mounted on one side of the top of the base, a winch drum assembly fixedly mounted on the top of the base, the winch drum assembly comprising a drum column, an integrated ring assembly fixedly mounted on the end of the drum column close to the limit plate, an engaging groove formed on one side of the drum column, a T-shaped cylinder rotatably connected to the inner wall of the engaging groove, an end of the T-shaped cylinder away from the drum column fixedly mounted with a limit collar, an electric telescopic rod slidably mounted on the inner wall of the limit collar, and a long groove plate fixedly mounted on the top and bottom of the electric telescopic rod. In the present invention, by adding a friction brake on the inner side of the integrated ring assembly and a tooth groove engaging brake on the outer side, the braking effect can be further improved, and the friction arc plate and the friction ring body acted upon by the friction arc plate can be disassembled and replaced in the braking device, thereby improving the subsequent braking effect.

Description

Technical Field

[0001] The present invention relates to the technical field of winch brakes, in particular to a braking device for a ship-borne drum winch. Background Art

[0002] The ship-mounted winch is also known as a hoist. It is highly versatile, compact, small, light, has a large lifting capacity, and is easy to use and transfer. It is used for lifting or towing ship equipment. The motor drives the drum to rotate through the reducer to reel in or unreel the rope on the outer surface of the drum. The drum is operated by installing a brake between the motor and the reducer input shaft.

[0003] In the process of towing mechanical equipment, the current ship-borne drum winch uses an electro-hydraulic push rod brake to act on the brake disc installed on the outer surface of the drum. However, it is usually composed of two sets of electro-hydraulic push rods, which respectively drive two sets of friction brakes to fit the inner wall of the brake disc. The two sets of electro-hydraulic push rods are arranged one above and one below the inside of the brake disc, resulting in an unbalanced effect of the two sets of friction forces on the inner side of the brake disc, affecting the friction braking effect. Summary of the Invention

[0004] The object of the present invention is to provide a braking device for a ship-borne drum winch to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a braking device for a ship-borne drum winch, comprising a base, a limit plate fixedly installed on one side of the top of the base, a winch drum assembly fixedly installed on the top of the base, the structure of the winch drum assembly comprising a drum column, and one end of the drum column rotates and passes through the interior of the limit plate, an integrated ring assembly is fixedly installed on the end of the drum column close to the limit plate, an engaging groove is provided on one side of the drum column, a T-shaped cylinder is rotatably connected to the inner wall of the engaging groove, and the T-shaped cylinder is fixedly installed on the end away from the drum column A limiting collar, an electric telescopic rod is slidably mounted on the inner wall of the limiting collar, and long groove plates are fixedly mounted on the top and bottom of the electric telescopic rod. Limiting blocks are fixedly mounted on the top and bottom walls of the limiting collar, and two groups of limiting blocks are respectively slidably connected to the inside of the two groups of long groove plates. A bending plate is fixedly mounted on the side of the limiting collar away from the T-shaped cylinder, and the bottom of the bending plate is fixedly connected to the top of the base by screws. Friction braking mechanisms are fixedly connected to both ends of the electric telescopic rod, and both groups of friction braking mechanisms are located within the inner circle of the integrated ring assembly.

[0006] Preferably, the structure of the integrated ring assembly includes a positioning ring body and a gear ring body, and the gear ring body is fixedly sleeved on the outer surface of the positioning ring body.

[0007] Preferably, a vertical plate is fixedly installed on the top of the base, and the vertical plate is located behind the integrated ring body assembly, two groups of electric push rods arranged up and down are fixedly installed on the front of the vertical plate, and the telescopic ends of the two groups of electric push rods are fixedly installed with a combination plate, an adjustment groove is opened on the front of the combination plate, a T-shaped strip is slidably installed on the inner wall of the adjustment groove, and a gear plate is fixedly installed on the front of the T-shaped strip.

[0008] Preferably, a supporting plate is fixedly mounted on the bottom of the combination plate, a first spring is fixedly connected to the bottom of the gear plate, and the bottom of the first spring is fixedly connected to the top of the supporting plate.

[0009] Preferably, the structure of the friction brake mechanism includes a plug-in block, a combination frame, a notch, a second spring, a locking cylinder and a friction arc plate. The plug-in block is slidably installed inside the combination frame. The notch, the second spring and the locking cylinder are each in two groups. The two groups of notches are respectively opened on both sides of the plug-in block. The two groups of the second springs are respectively connected to the inner walls of the two groups of notches. Through grooves are opened on both sides of the combination frame. The two groups of locking cylinders are respectively fixedly connected to one end of the two groups of second springs, and one end of the two groups of locking cylinders respectively passes through the interior of the two groups of through grooves. The friction arc plate is fixedly installed on the outer surface of the combination frame, and the curvature of the friction arc plate is consistent with the curvature of the inner ring of the integrated ring assembly.

[0010] Preferably, the structure of the integrated ring assembly also includes grooves, friction rings, protrusions and fastening nails, and the number of the grooves, protrusions and fastening nails is three groups, the three groups of grooves are evenly opened on the inner wall of the positioning ring body, the friction ring body is slidably installed on the inner wall of the positioning ring body, the three groups of protrusions are evenly installed on the outer surface of the friction ring body, and the three groups of protrusions are respectively embedded in the interior of the three groups of grooves, the three groups of fastening nails are respectively passed through the interior of the three groups of protrusions on the inner wall of the friction ring body, and the tail ends of the fastening nails extend into the interior of the gear ring body.

[0011] Preferably, the structure of the winch drum assembly also includes a servo motor, a reducer and a gear ring. The servo motor is fixedly mounted on the top of the base, and the servo motor is located in front of the drum column. The reducer is installed at the output end of the servo motor, and the gear ring is fixedly sleeved on the output end of the reducer.

[0012] Preferably, the structure of the winch drum assembly also includes a gear plate, a V-belt and a support plate. The gear plate is fixedly sleeved on the outer surface of the drum column. The V-belt is sleeved on the outer surface of the gear plate and the gear ring through tooth grooves. The support plate is fixedly installed on the top of the base, and the end of the drum column away from the limit plate rotates through the interior of the support plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the present invention, by operating the electric telescopic rod, it is prompted to perform an outward extension operation accordingly, thereby gradually expanding its own comprehensive length, so as to push the two sets of friction brake mechanisms forward and backward respectively, so that the front side of one set of friction brake mechanisms and the rear side of the other set of friction brake mechanisms are respectively tightly fitted with the front side and the rear side of the inner wall of the integrated ring body assembly. The expansion force brought by the outward extension of the electric telescopic rod on the two sets of friction brake mechanisms achieves the purpose of braking the winch drum assembly. When the electric telescopic rod is not extending, the distance between the friction brake mechanisms at both ends and the inner wall of the integrated ring body assembly is small. Therefore, during subsequent braking, the electric telescopic rod only needs to extend a short length to perform braking, thereby improving the braking response rate.

[0015] 2. In the present invention, when the integrated ring assembly and the roller column are about to stop rotating, the two sets of electric push rods are operated to prompt the two to extend forward synchronously, so as to generate a forward driving force for the combined plate, the T-shaped strip, and the gear plate. At this time, since the gear ring body still has a small range of movement, the gear plate and the gear ring body are not fully engaged. In the present technical solution, at the moment when the gear plate and the gear ring body contact, the force generated by the small rotation of the gear ring body can be transmitted to the first spring through the gear plate, and then according to the elasticity and reset effect of the first spring itself, the gear plate has a certain amount of up and down mobility, and then the gear plate and the gear ring body can be fully engaged, thereby further improving the braking effect.

[0016] 3. In the present invention, the two sets of locking cylinders are squeezed to cause the second spring to contract inward, and at the same time, the locking cylinders follow and contract back into the space inside the notch. At this time, by applying external force to the plug-in block away from or toward the location of the combination frame, the two can be disassembled and assembled, thereby achieving the purpose of convenient replacement of the friction arc plate.

[0017] 4. In the present invention, by removing the fastening pins used to fix the friction ring, the positioning ring and the gear ring in sequence, the friction ring can be driven to separate from the positioning ring to carry out the replacement operation of the friction ring, thereby indirectly improving the subsequent braking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the installation structure of the electric push rod and the combination plate of the present invention;

[0020] Figure 3 Schematic diagram of the structure of the friction brake mechanism of the present invention;

[0021] Figure 4This is a schematic diagram of the disassembled structure of the limiting collar and the electric telescopic rod of the present invention;

[0022] Figure 5 It is a schematic structural diagram of the comprehensive ring assembly of the present invention;

[0023] Figure 6 This is a schematic diagram of the installation structure of the roller column and the positioning ring body of the present invention;

[0024] Figure 7 For the present invention Figure 1 Schematic diagram of the A structure;

[0025] Figure 8 It is a structural schematic diagram of the winch drum assembly of the present invention.

[0026] Figure: 1, base; 2, limit plate; 3, winch drum assembly; 4, drum column; 5, integrated ring assembly; 6, fitting groove; 7, T-shaped cylinder; 8, limit collar; 9, electric telescopic rod; 10, long slot plate; 11, limit block; 12, bending plate; 13, friction brake mechanism; 14, positioning ring; 15, gear ring; 16, upright plate; 17, electric push rod; 18, combination plate; 19, adjustment slot; 2 0. T-shaped strip; 21. Gear plate; 22. Support plate; 23. First spring; 24. Plug-in block; 25. Combination frame; 26. Notch; 27. Second spring; 28. Locking cylinder; 29. ​​Friction arc plate; 30. Groove; 31. Friction ring; 32. Raised block; 33. Fastening pin; 34. Servo motor; 35. Reducer; 36. Gear collar; 37. Gear plate; 38. V-belt; 39. Support plate. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0030] See also Figures 1-8 , an embodiment provided by the present invention:

[0031] A braking device for a ship-borne drum winch comprises a base 1, a limit plate 2 being fixedly mounted on one side of the top of the base 1, a winch drum assembly 3 being fixedly mounted on the top of the base 1, the winch drum assembly 3 comprising a drum column 4, one end of which rotates through the interior of the limit plate 2, a comprehensive ring assembly 5 being fixedly mounted on the end of the drum column 4 close to the limit plate 2, a fitting groove 6 being provided on one side of the drum column 4, a T-shaped cylinder 7 being rotatably connected to the inner wall of the fitting groove 6, a limit collar 8 being fixedly mounted on the end of the T-shaped cylinder 7 away from the drum column 4, and the inner wall of the limit collar 8 slidingly An electric telescopic rod 9 is dynamically installed, and a long groove plate 10 is fixedly installed on the top and bottom of the electric telescopic rod 9. The top and bottom walls of the limiting collar 8 are fixedly installed with limiting blocks 11, and the two groups of limiting blocks 11 are respectively slidably connected to the inside of the two groups of long groove plates 10. A bending plate 12 is fixedly installed on the side of the limiting collar 8 away from the T-shaped cylinder 7, and the bottom of the bending plate 12 is fixedly connected to the top of the base 1 by screws. Both ends of the electric telescopic rod 9 are fixedly connected with a friction brake mechanism 13, and the two groups of friction brake mechanisms 13 are located within the inner circle of the integrated ring assembly 5.

[0032] The bending plate 12 can cause the limit collar 8 to remain at a set height position. In addition, when the drum winch needs to be braked, the electric telescopic rod 9 is operated to cause it to extend outward accordingly, thereby gradually expanding its own comprehensive length, so as to push the two groups of friction braking mechanisms 13 forward and backward respectively, so that the front side of one group of friction braking mechanisms 13 and the rear side of the other group of friction braking mechanisms 13 are respectively tightly fitted with the front side and rear side of the inner wall of the comprehensive ring body assembly 5. The expansion force brought by the outward extension of the electric telescopic rod 9 on the two groups of friction braking mechanisms 13 is used to achieve the purpose of braking the winch drum assembly 3. In addition, in the process of gradual extension and retraction of the electric telescopic rod 9, the limit collar 8 is fixedly connected to the bending plate 12, and its position remains stationary, so the long slot plate 10 can move forward or backward relative to the limit block 11.

[0033] The structure of the integrated ring assembly 5 includes a positioning ring body 14 and a gear ring body 15. The gear ring body 15 is fixedly sleeved on the outer surface of the positioning ring body 14. A vertical plate 16 is fixedly installed on the top of the base 1, and the vertical plate 16 is located at the rear of the integrated ring assembly 5. Two groups of electric push rods 17 arranged up and down are fixedly installed on the front of the vertical plate 16. The telescopic ends of the two groups of electric push rods 17 are fixedly installed with a combination plate 18. An adjustment groove 19 is provided on the front of the combination plate 18. A T-shaped strip 20 is slidably installed on the inner wall of the adjustment groove 19. A gear plate 21 is fixedly installed on the front of the T-shaped strip 20. A supporting plate 22 is fixedly installed on the bottom of the combination plate 18. The bottom of the gear plate 21 is fixedly connected to a first spring 23, and the bottom of the first spring 23 is fixedly connected to the top of the supporting plate 22.

[0034] After the electric telescopic rod 9 extends outward and drives the two sets of friction brake mechanisms 13 to brake the integrated ring assembly 5 and the roller column 4, when the integrated ring assembly 5 and the roller column 4 are about to stop rotating, the two sets of electric push rods 17 are operated to prompt the two to synchronously extend forward to generate a forward propulsion force for the combined plate 18, the T-shaped strip 20, and the gear plate 21. At this time, since the gear ring body 15 still has a small range of activity, the gear plate 21 is not fully engaged with it. In this technical solution, at the moment when the gear plate 21 contacts the gear ring body 15, the force generated by the small rotation of the gear ring body 15, It can be transmitted to the first spring 23 through the gear plate 21, and then according to the elasticity and reset function of the first spring 23 itself, the gear plate 21 has a certain amount of up and down mobility, and then the gear plate 21 and the gear ring body 15 can be fully engaged, so as to further improve the braking effect and prevent the winch drum assembly 3 from accidentally rotating. In addition, when the first spring 23 is acted upon by external force to stretch and retract up and down to drive the gear plate 21 to move up and down, the T-shaped strip 20 can accordingly follow and slide up and down along the inner wall of the adjusting groove 19. The T-shaped strip 20 is embedded in the inside of the adjusting groove 19, which can prevent the gear plate 21 from being out of contact with the combination plate 18.

[0035] The structure of the friction brake mechanism 13 includes a plug-in block 24, a combination frame 25, a notch 26, a second spring 27, a locking cylinder 28 and a friction arc plate 29. The plug-in block 24 is slidably installed inside the combination frame 25. There are two groups of notches 26, second springs 27 and locking cylinders 28. The two groups of notches 26 are respectively opened on both sides of the plug-in block 24. The two groups of second springs 27 are respectively connected to the inner walls of the two groups of notches 26. Through grooves are opened on both sides of the combination frame 25. The two groups of locking cylinders 28 are respectively fixedly connected to one end of the two groups of second springs 27, and one end of the two groups of locking cylinders 28 respectively passes through the interior of the two groups of through grooves. The friction arc plate 29 is fixedly installed on the outer surface of the combination frame 25, and the curvature of the friction arc plate 29 is consistent with the curvature of the inner ring of the integrated ring assembly 5.

[0036] During long-term use, the plate used for friction braking of the braking device of the drum winch is severely damaged, which in turn affects the subsequent braking effect. In the present technical solution, the plug-in block 24 and the combination frame 25 are in a detachable assembly state, which facilitates the replacement of the friction arc plate 29 installed through the combination frame 25, and the disassembly and assembly between the plug-in block 24 and the combination frame 25 are relatively convenient. By squeezing the two sets of locking cylinders 28 at the same time, the second spring 27 is prompted to shrink inward, and the locking cylinder 28 follows and shrinks back to the space inside the slot 26. At this time, by applying an external force to the plug-in block 24 away from or toward the combination frame 25, the two can be disassembled and assembled.

[0037] The structure of the integrated ring assembly 5 also includes grooves 30, friction rings 31, protrusions 32 and fastening nails 33. The number of grooves 30, protrusions 32 and fastening nails 33 are all three groups. The three groups of grooves 30 are evenly opened on the inner wall of the positioning ring body 14. The friction ring body 31 is slidably installed on the inner wall of the positioning ring body 14. The three groups of protrusions 32 are evenly installed on the outer surface of the friction ring body 31, and the three groups of protrusions 32 are respectively embedded in the interior of the three groups of grooves 30. The three groups of fastening nails 33 pass through the interior of the three groups of protrusions 32 on the inner wall of the friction ring body 31, and the tail ends of the fastening nails 33 extend into the interior of the gear ring body 15.

[0038] The friction ring body 31 is a component that is subjected to the force of the two sets of friction arc plates 29 during braking. It is also susceptible to severe wear after long-term use. In this technical solution, by removing the fastening nails 33 used to fix the friction ring body 31, the positioning ring body 14 and the gear ring body 15 in sequence, the friction ring body 31 can be driven to separate from the positioning ring body 14 to replace the friction ring body 31. After installation, the top end of the fastening nail 33 is completely embedded in the interior of the friction ring body 31, thereby effectively preventing it from affecting the braking effect.

[0039] The structure of the winch drum assembly 3 also includes a servo motor 34, a reducer 35 and a gear ring 36. The servo motor 34 is fixedly mounted on the top of the base 1, and the servo motor 34 is located in front of the drum column 4. The reducer 35 is installed at the output end of the servo motor 34, and the gear ring 36 is fixedly sleeved on the output end of the reducer 35. The structure of the winch drum assembly 3 also includes a gear plate 37, a V-belt 38 and a support plate 39. The gear plate 37 is fixedly sleeved on the outer surface of the drum column 4, and the V-belt 38 is sleeved on the outer surfaces of the gear plate 37 and the gear ring 36 through tooth groove matching. The support plate 39 is fixedly mounted on the top of the base 1, and the end of the drum column 4 away from the limit plate 2 rotates and passes through the interior of the support plate 39.

[0040] By running the servo motor 34 and the reducer 35, the gear ring 36 can be driven to rotate in the set direction, thereby driving the gear plate 37 to rotate through the V-belt 38, and then prompting the roller column 4 to rotate along the support plate 39 and the inside of the limit plate 2 at a set speed.

[0041] Working principle: By running the electric telescopic rod 9, the corresponding outward extension operation is promoted, so that the front side of one set of friction brake mechanisms 13 and the rear side of the other set of friction brake mechanisms 13 are respectively tightly fitted with the front side and the rear side of the inner wall of the integrated ring body component 5. The expansion force brought by the outward extension of the electric telescopic rod 9 on the two sets of friction brake mechanisms 13 is used to achieve the purpose of braking the winch drum component 3. In addition, when the integrated ring body component 5 and the drum column 4 are about to stop rotating, the two sets of electric push rods 17 are run to extend forward, driving the combination plate 18, the T-shaped strip 20, and the gear plate 21 to move toward the gear ring body 15. When the gear plate 21 is in contact with the gear ring body 15, the gear plate 21 is in contact with the gear ring body 15. At the moment of contact, the force generated by the small rotation of the gear ring body 15 can be transmitted to the first spring 23 through the gear plate 21, and then according to the elasticity and reset function of the first spring 23 itself, the gear plate 21 has a certain amount of up and down mobility, and then the gear plate 21 and the gear ring body 15 can be fully engaged, thereby further improving the braking effect. In addition, the plug-in block 24 and the combination frame 25 inside the friction brake mechanism 13, and the outer friction ring body 31 and the positioning ring body 14 are all in a detachable state, which facilitates the replacement of the friction arc plate 29 installed through the combination frame 25 and the friction ring body 31 acted upon by the friction arc plate 29, thereby improving the subsequent braking effect.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A braking device for a ship-borne drum winch, comprising a base (1), characterized in that: A limit plate (2) is fixedly mounted on one side of the top of the base (1), and a winch drum assembly (3) is fixedly mounted on the top of the base (1). The structure of the winch drum assembly (3) includes a drum column (4), and one end of the drum column (4) rotates and passes through the interior of the limit plate (2). An integrated ring assembly (5) is fixedly mounted on the end of the drum column (4) close to the limit plate (2). A fitting groove (6) is provided on one side of the drum column (4), and a T-shaped cylinder (7) is rotatably connected to the inner wall of the fitting groove (6). A limiting collar (8) is fixedly mounted on the end of the T-shaped cylinder (7) away from the drum column (4), and the inner wall of the limiting collar (8) is slidably mounted. There is an electric telescopic rod (9), the top and bottom of the electric telescopic rod (9) are fixedly installed with long groove plates (10), the top wall and bottom wall of the limiting collar (8) are fixedly installed with limiting blocks (11), and the two groups of limiting blocks (11) are respectively slidably connected to the inside of the two groups of long groove plates (10), the side of the limiting collar (8) away from the T-shaped cylinder (7) is fixedly installed with a bending plate (12), and the bottom of the bending plate (12) is fixedly connected to the top of the base (1) by screws, and both ends of the electric telescopic rod (9) are fixedly connected with friction brake mechanisms (13), and the two groups of friction brake mechanisms (13) are located within the inner circle of the integrated ring assembly (5); The structure of the integrated ring assembly (5) includes a positioning ring body (14) and a gear ring body (15), wherein the gear ring body (15) is fixedly sleeved on the outer surface of the positioning ring body (14); A vertical plate (16) is fixedly mounted on the top of the base (1), and the vertical plate (16) is located behind the integrated ring assembly (5). Two groups of electric push rods (17) arranged vertically are fixedly mounted on the front of the vertical plate (16). The telescopic ends of the two groups of electric push rods (17) are fixedly mounted with a combination plate (18). An adjustment groove (19) is provided on the front of the combination plate (18). A T-shaped strip (20) is slidably mounted on the inner wall of the adjustment groove (19). A gear plate (21) is fixedly mounted on the front of the T-shaped strip (20).

2. The braking device of a ship-borne drum winch according to claim 1, characterized in that: A supporting plate (22) is fixedly mounted on the bottom of the combined plate (18), a first spring (23) is fixedly connected to the bottom of the gear plate (21), and the bottom of the first spring (23) is fixedly connected to the top of the supporting plate (22).

3. The braking device of a ship-borne drum winch according to claim 1, characterized in that: The friction brake mechanism (13) comprises a plug-in block (24), a combination frame (25), a notch (26), a second spring (27), a locking cylinder (28) and a friction arc plate (29). The plug-in block (24) is slidably mounted inside the combination frame (25). The notch (26), the second spring (27) and the locking cylinder (28) are each in two groups. The two groups of notches (26) are respectively opened on both sides of the plug-in block (24). The two groups of the second springs (27) and the locking cylinder (28) are respectively opened on both sides of the plug-in block (24). The springs (27) are respectively connected to the inner walls of the two groups of notches (26), and through grooves are provided on both sides of the combination frame (25). The two groups of locking cylinders (28) are respectively fixedly connected to one end of the two groups of second springs (27), and one end of the two groups of locking cylinders (28) passes through the interior of the two groups of through grooves. The friction arc plate (29) is fixedly installed on the outer surface of the combination frame (25), and the curvature of the friction arc plate (29) is consistent with the curvature of the inner ring of the integrated ring assembly (5).

4. The braking device of a ship-borne drum winch according to claim 1, characterized in that: The structure of the integrated ring assembly (5) further includes a groove (30), a friction ring body (31), a protrusion (32) and a fastening nail (33). The number of the groove (30), the protrusion (32) and the fastening nail (33) is three groups. The three groups of the grooves (30) are evenly opened on the inner wall of the positioning ring body (14). The friction ring body (31) is slidably installed on the inner wall of the positioning ring body (14). The three groups of the protrusions (32) are evenly installed on the outer surface of the friction ring body (31). The three groups of protrusions (32) are respectively embedded in the interior of the three groups of grooves (30). The three groups of the fastening nails (33) are respectively passed through the interior of the three groups of protrusions (32) on the inner wall of the friction ring body (31), and the tail ends of the fastening nails (33) extend into the interior of the gear ring body (15).

5. The braking device of a ship-borne drum winch according to claim 1, characterized in that: The winch drum assembly (3) further comprises a servo motor (34), a reducer (35) and a gear collar (36), wherein the servo motor (34) is fixedly mounted on the top of the base (1), and the servo motor (34) is located in front of the drum column (4), the reducer (35) is mounted on the output end of the servo motor (34), and the gear collar (36) is fixedly sleeved on the output end of the reducer (35).

6. The braking device of a ship-borne drum winch according to claim 1, characterized in that: The winch drum assembly (3) further comprises a gear plate (37), a V-belt (38) and a support plate (39), wherein the gear plate (37) is fixedly sleeved on the outer surface of the drum column (4), the V-belt (38) is sleeved on the outer surfaces of the gear plate (37) and the gear collar (36) through tooth grooves, and the support plate (39) is fixedly mounted on the top of the base (1), and the end of the drum column (4) away from the limiting plate (2) rotates and passes through the interior of the support plate (39).

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