Jumping stopper based on ship suspension rudder

Abstract

The invention relates to the technical field of ships, in particular to a jumping stopper based on a ship suspension rudder, which comprises a support tube fixedly arranged at the bottom of a paddle rod, a support shaft vertically moving up and down is movably arranged on the inner wall of the support tube, and a buffer component is arranged at the bottom of the support shaft; the buffering assembly comprises a piston ring, a first movable pipe, a second movable pipe, a first fixing ring and a second fixing ring, and the piston ring is fixedly connected to the bottom of the supporting shaft. Damping fluid flowing back and forth can be blocked when flowing through a first fixing ring, a second fixing ring, a baffle ring, a flow guide plate and a flow guide pipe to form a Tesla valve flow channel, that is, the damping effect on vertical movement of a piston ring is achieved, and when vertical jumping is frequent, the flow guide pipe expands, the resistance of the Tesla valve flow channel is increased, and the damping effect is improved. Therefore, the purpose of adjusting damping in a self-adaptive mode according to different requirements is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, in particular to a trip stopper based on a ship's suspended rudder. Background Art

[0002] During navigation, the rudder stock, which holds the rudder, can rise slightly with the rudder blade due to currents and surges. Repeated impacts between the rudder stock and the upper rudder bearing can accelerate wear and even cause seal failure and structural deformation. In severe cases, this can cause the rudder blade to fall off, resulting in a rudder loss accident.

[0003] For example, the announcement number CN215972066U provides a ship rudder bearing anti-jumping device applied to the field of ship technology. The ship rudder bearing anti-jumping device includes a anti-jumping ring, which includes a anti-jumping ring component I and a anti-jumping ring component II. The anti-jumping ring component I is provided with a semicircular clamping portion I, and the anti-jumping ring component II is provided with a semicircular clamping portion II. The anti-jumping ring component I and the anti-jumping ring component II are connected by a bolt and nut assembly. The anti-jumping ring is sleeved on the rudder stock, and one end face of the anti-jumping ring abuts against one end face of the ring. The ship rudder bearing anti-jumping device described in the utility model has a simple structure and low cost. It can effectively prevent the ring of the roller rudder bearing from slipping out during the navigation of the ship, resulting in failure of the upper rudder bearing, thereby improving the safety of the ship. For example, the fully suspended rudder system for container ships, as provided in announcement number CN220391510U, includes a steering gear, a rudder stock, a rudder sleeve, and a rudder blade. The rudder sleeve is welded to the stern structure of the hull. An upper rudder bearing is mounted on the top of the rudder sleeve, which is fixedly connected to the hull and seals the top surface of the rudder sleeve. The rudder stock passes through the upper rudder bearing, which rotatably supports the rudder stock and is sealed. A lower rudder bearing is mounted on the bottom of the rudder sleeve, which rotatably supports the rudder stock. A rudder ball is welded to the middle part of the rudder blade facing the bow, which is coaxial with and close to the propeller. The main body of the rudder blade consists of two symmetrical smooth curved surfaces, which can effectively reduce the low-pressure area, avoid the formation of cavitation, and reduce corrosion damage on the rudder blade surface.

[0004] However, in actual use, the above technology uses welded round steel or iron blocks to achieve the anti-jump function, which has poor buffering effect and cannot adaptively adjust the buffering force according to the vibration frequency, and cannot meet the ship's adaptive damping requirements at different speeds and wave heights. Summary of the Invention

[0005] The purpose of the present invention is to provide a jump stopper based on a ship's suspended rudder to solve the problem that the buffering force cannot be adaptively adjusted according to the vibration frequency and the adaptive adjustment damping requirements of the ship at different speeds and wave heights cannot be met.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a trip stopper based on a ship's suspended rudder, comprising: A support tube is fixedly arranged at the bottom of the paddle rod, the inner wall of the support tube is movably provided with a support shaft that moves vertically up and down, and the bottom of the support shaft is provided with a buffer assembly; The buffer assembly includes a piston ring, a first movable tube, a second movable tube, a first fixed ring and a second fixed ring, and the piston ring is fixedly connected to the bottom of the support shaft so that the support shaft drives the piston ring to move up and down between the first fixed ring and the second fixed ring, and a damping assembly is provided between the first fixed ring and the second fixed ring; The damping assembly includes a fixed inner ring movably connected to the surface of the piston ring, the surface of the fixed inner ring is fixedly connected to a fixed frame, the middle of the side wall of the fixed frame away from the fixed inner ring is fixedly embedded with a fixed outer ring, the middle part of the fixed frame is fixedly connected to a first baffle and a second baffle in radial order, the middle parts of the first baffle and the second baffle are fixedly connected to a plurality of guide plates and guide tubes to form a Tesla valve flow channel, the guide plates have a symmetrical structure in the middle so that both ends of the Tesla valve flow channel are unidirectional, the guide tube has a deformation function so as to change the resistance of the liquid passing through the Tesla valve flow channel, and a damping liquid is provided in the Tesla valve flow channel.

[0007] Preferably, the inner wall of the support tube is movably connected to a third movable tube that moves up and down, and the surface of the third movable tube is tightly fitted with the inner wall of the support tube, the third movable tube is fixedly connected to the top of the support shaft, and the bottom of the third movable tube is fixedly connected to a return spring, and the return spring is fixedly connected to the bottom of the inner wall of the support tube.

[0008] Preferably, the first movable tube and the second movable tube are respectively fixedly connected to the top and bottom of the piston ring, the first movable tube is movably connected to the inner wall of the first fixed ring, and the second movable tube is movably connected to the inner wall of the second fixed ring, the surface of the piston ring and the inner walls of the first and second fixed rings are respectively fixedly connected with sealing rings to maintain dynamic sealing between the first movable tube and the first fixed ring, between the second movable tube and the second fixed ring, and between the piston ring and the fixed inner ring, the top of the first movable tube and the top of the first fixed ring, and the bottom of the second movable tube and the bottom of the second fixed ring are respectively fixedly connected with sealing bellows to enhance the sealing between the first movable tube and the first fixed ring and between the second movable tube and the second fixed ring, and the surfaces of the first and second fixed rings are fixedly connected with outer protective tubes.

[0009] The top of described outer protective tube is fixedly connected with a connecting tube, the top of described connecting tube is fixedly connected with the mounting bracket, the bottom of described mounting bracket is fixedly connected with the upper fixing plate, and the connecting tube passes through and extends to the two ends of the upper fixing plate, the top of described support tube is fixedly connected with the mounting plate, and the mounting plate is fixedly connected to the bottom of the paddle rod, and one end of the mounting bracket and the opposite surface of the paddle rod are fixedly connected to a guide comb bar, so that the relative movement of the mounting bracket and the paddle rod is guided by the guide comb bar. A sealing flexible tube is fixedly connected between the mounting plate and the mounting bracket to seal between the connecting tube and the support tube. The bottom of the upper fixing plate is fixedly connected with a reinforcing rib, and the bottom of the reinforcing rib is fixedly connected with a lower fixing plate, and the two ends of the opposite surfaces of the upper and lower fixing plates are respectively fixedly connected with edge sealing strips, and the paddle blades are fixedly connected to the front and rear ends of the edge sealing strip, the middle of the blades is fixedly connected with the reinforcing plate, and the outer protective tube is fixedly connected to the top of the reinforcing plate.

[0010] Preferably, a plurality of first guide bars are fixedly connected to the surface of the support tube, a plurality of second guide bars are fixedly connected to the inner wall of the connecting tube corresponding to the position of the first guide bars, and the first guide bars and the second guide bars are arranged alternately, a permanent magnet is provided in the first guide bar, and the magnetic properties of the permanent magnets in two adjacent first guide bars are opposite, and a coil is provided in the second guide bar so that when the first guide bar and the second guide bar move alternately in the vertical direction, the coil in the second guide bar generates alternating current.

[0011] Preferably, the guide pipe is fixedly passed through and extends to both ends of the first partition and the second partition, and heat transfer oil is provided inside the guide pipe, and a dividing strip is fixedly connected to the surface of the middle portion of the first partition, and the dividing strip is fixedly connected to the inner wall of the fixed outer ring, and the top and bottom of the first partition and the fixing frame are respectively fixedly connected to retaining rings, and the two retaining rings are respectively fixedly connected to one end of the opposite surfaces of the first fixing ring and the second fixing ring, so that the damping liquid flowing out of the Tesla valve flow channel formed between the guide plate and the guide pipe only flows back and forth in the piston ring, the first fixing ring, the second fixing ring and the Tesla valve flow channel, and a connecting groove is provided on the inner wall of the outer protective pipe corresponding to the retaining ring position, and a connecting component connecting the two connecting grooves is fixedly embedded in the side wall of the outer protective pipe, so that a heat transfer oil circulation channel is formed through the connecting component inside the top connecting groove, inside the top multiple guide pipes, inside the space formed by the fixed inner ring surface and the fixing frame, inside the bottom multiple guide pipes and inside the bottom connecting groove.

[0012] Preferably, the connecting component includes an electric heating tube, and the inner coil of the second guide bar is electrically connected to the electric heating tube so that the electric heating tube is electrically heated. Both ends of the electric heating tube are fixedly connected with a connecting tube, and the two diverging ends of the two connecting tubes are respectively provided with one-way valves in opposite directions, and a cache hose is provided in the middle of the connecting tube.

[0013] Preferably, a rubber cover is fixedly connected to the top of the first movable tube, and the rubber cover is fixedly connected to the top of the first fixed ring. A plurality of through holes are opened in the middle of the sealing bellows corresponding to the internal position of the rubber cover, so that the internal volume of the rubber cover changes when the first movable tube moves up and down, and the heat transfer oil inside the heat transfer oil circulation channel is circulated through the one-way valves and buffer hoses at both ends of the two connecting tubes through the through holes. The guide tube is a component made of thermal expansion material.

[0014] Preferably, a mounting tube is provided between two adjacent first partitions, an electromagnetic coil is provided on the surface of the mounting tube, and the electromagnetic coil is directly electrically connected to the second guide bar that generates induced alternating current.

[0015] Preferably, the mounting tube is a metal component.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention forms a Tesla valve flow channel through which the reciprocating damping fluid is obstructed when flowing through the first fixed ring, the second fixed ring, the retaining ring, and between the guide plate and the guide tube, thereby damping the up and down movement of the piston ring. When the up and down movement is frequent, the guide tube expands, thereby increasing the resistance of the Tesla valve flow channel, thereby achieving the purpose of adaptively adjusting the damping according to different needs. The present invention also fills the Tesla valve flow channel with a magnetorheological fluid damping fluid. When the propeller blade bounces up and down frequently due to waves, the induced current generated by the coil in the second guide bar will become larger and larger, which will make the magnetic field generated by the electromagnetic coil larger and larger, that is, the viscosity of the magnetorheological fluid will become higher and higher, thereby further increasing the damping of the reciprocating flow of the magnetorheological fluid in the Tesla valve flow channel, that is, hindering the up and down movement of the piston ring. When the propeller blade bounces up and down frequently due to waves, the up and down movement of the propeller blade is further hindered, thereby achieving the purpose of adaptively adjusting the damping according to different needs; The present invention also uses a mounting tube made of metal material. When the blade bounces up and down frequently due to waves, the induced current generated by the coil in the second guide bar will become larger and larger, which will make the magnetic field generated by the electromagnetic coil larger and larger. Eddy currents will be generated inside the mounting tube located in the alternating magnetic field of the electromagnetic coil, resulting in energy loss inside the mounting tube, causing the mounting tube to heat up, and the heat is transferred to the guide tube through the guide plate and the heat-conducting oil, so that the guide tube is heated. After being heated, the guide tube will expand, thereby increasing the resistance of the Tesla valve flow channel, further hindering the up and down movement of the piston ring, that is, when the blade bounces up and down frequently due to waves, the up and down movement of the blade is further hindered, thereby achieving the purpose of adaptively adjusting the damping according to different needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic diagram of the overall structure of a trip stop based on a ship's suspended rudder according to the present invention; Figure 2 This is a cross-sectional view of the overall structure of a trip stop based on a ship's suspended rudder according to the present invention; Figure 3 This is an exploded view of the overall structure of a trip stop based on a ship's suspended rudder according to the present invention; Figure 4 This is a partial exploded view of the structure of a buffer assembly of a ship-suspended rudder according to the present invention; Figure 5 This is a structural schematic diagram of a stopper buffer assembly based on a ship's suspended rudder according to the present invention; Figure 6 This is a cross-sectional view of the structure of a buffer assembly of a ship-suspended rudder according to the present invention; Figure 7 This is a cross-sectional view of the structure of a stopper damping assembly based on a ship suspension rudder according to the present invention; Figure 8 This is a cross-sectional view of the outer protective tube structure of a jump arrester based on a ship's suspended rudder according to the present invention; Figure 9 This is a schematic structural diagram of a trip stopper connection assembly based on a ship's suspended rudder according to the present invention; Figure 10 This is an exploded view of the structure of a stopper damping assembly based on a ship's suspended rudder according to the present invention; Figure 11 This is a partial exploded view of the structure of a stopper damping assembly based on a ship suspension rudder according to the present invention.

[0018] In the figure: 1. Support tube; 2. Support shaft; 301, piston ring; 302, first movable tube; 303, second movable tube; 304, outer protective tube; 305, first fixed ring; 306, second fixed ring; 307, sealing bellows; 308, third movable tube; 309, return spring; 401, fixed inner ring; 402, fixed frame; 403, fixed outer ring; 404, first partition; 405, second partition; 406, guide plate; 407, guide tube; 408, separator bar; 409, retaining ring; 410, rubber cover; 411, through hole; 412, connecting groove; 413, connecting assembly; 4131, electric heating tube; 4132, connecting tube; 4133, buffer hose; 414, mounting tube; 415, electromagnetic coil; 5. Connecting pipe; 6. First guide strip; 7. Second guide strip; 8. Upper fixing plate; 9. Mounting frame; 10. Mounting plate; 11. Paddle rod; 12. Sealing flexible tube; 13. Guide comb strip; 14. Reinforcement rib; 15. Lower fixing plate; 16. Edge banding strip; 17. Paddle blade; 18. Reinforcement plate. DETAILED DESCRIPTION

[0019] 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.

[0020] Example 1: Please refer to Figure 1-11 The present invention provides a technical solution: a trip stopper based on a ship's suspended rudder, comprising: A support tube 1 is fixedly arranged at the bottom of the paddle rod 11, and a support shaft 2 is movably provided on the inner wall of the support tube 1 for vertical movement, and a buffer assembly is provided at the bottom of the support shaft 2; The buffer assembly includes a piston ring 301, a first movable tube 302, a second movable tube 303, a first fixed ring 305, and a second fixed ring 306. The piston ring 301 is fixedly mounted on the bottom of the support shaft 2 so that the support shaft 2 drives the piston ring 301 to move up and down between the first fixed ring 305 and the second fixed ring 306. A damping assembly is provided between the first fixed ring 305 and the second fixed ring 306. The damping assembly includes a fixed inner ring 401 movably connected to the surface of the piston ring 301, a fixed frame 402 is fixedly installed on the surface of the fixed inner ring 401, a fixed outer ring 403 is fixedly embedded in the middle of the side wall of the fixed frame 402 away from the fixed inner ring 401, a first baffle 404 and a second baffle 405 are fixedly installed in the middle of the fixed frame 402 in radial order, a plurality of guide plates 406 and a guide tube 407 are fixedly installed in the middle of the first baffle 404 and the second baffle 405, and a Tesla valve flow channel is formed, the guide plate 406 has a symmetrical structure in the middle so that both ends of the Tesla valve flow channel are unidirectional, the guide tube 407 has a deformation function so as to change the resistance of the liquid passing through the Tesla valve flow channel, a damping liquid is provided in the Tesla valve flow channel, and the support tube 1 The inner wall is movably connected with a third movable tube 308 that moves up and down, and the surface of the third movable tube 308 is tightly fitted with the inner wall of the support tube 1. The third movable tube 308 is fixedly installed on the top of the support shaft 2, and a return spring 309 is fixedly installed on the bottom of the third movable tube 308, and the return spring 309 is fixedly installed on the bottom of the inner wall of the support tube 1. The first movable tube 302 and the second movable tube 303 are respectively fixedly installed on the top and bottom of the piston ring 301. The first movable tube 302 is movably connected to the inner wall of the first fixed ring 305, and the second movable tube 303 is movably connected to the inner wall of the second fixed ring 306. The surface of the piston ring 301 and the inner walls of the first fixed ring 305 and the second fixed ring 306 are respectively fixedly installed with sealing rings to make the third movable tube 308 fixedly installed. Dynamic sealing is maintained between the first movable tube 302 and the first fixed ring 305, between the second movable tube 303 and the second fixed ring 306, and between the piston ring 301 and the fixed inner ring 401. A sealing bellows 307 is fixedly installed between the top of the first movable tube 302 and the top of the first fixed ring 305, and between the bottom of the second movable tube 303 and the bottom of the second fixed ring 306, so as to enhance the sealing between the first movable tube 302 and the first fixed ring 305, and between the second movable tube 303 and the second fixed ring 306. An outer protective tube 304 is fixedly installed on the surface of the first fixed ring 305 and the second fixed ring 306. A connecting tube 5 is fixedly installed on the top of the outer protective tube 304. A mounting bracket 9 is fixedly installed on the top of the connecting tube 5. An upper fixing plate 8 is fixedly installed on the bottom of the mounting frame 9, and the connecting pipe 5 passes through and extends to the two ends of the upper fixing plate 8. A mounting plate 10 is fixedly installed on the top of the support tube 1, and the mounting plate 10 is fixedly installed on the bottom of the paddle rod 11. One end of the opposite surface of the mounting frame 9 and the paddle rod 11 is fixedly installed with a guide comb tooth bar 13 to guide the relative movement of the mounting frame 9 and the paddle rod 11 through the guide comb tooth bar 13. A sealing flexible tube 12 is fixedly installed between the mounting plate 10 and the mounting frame 9 to seal between the connecting pipe 5 and the support tube 1. A reinforcing rib 14 is fixedly installed on the bottom of the upper fixing plate 8, and a lower fixing plate 15 is fixedly installed on the bottom of the reinforcing rib 14. The two ends of the opposite surfaces of the upper fixing plate 8 and the lower fixing plate 15 are respectively fixedly installed with edge banding strips 16.The paddle 17 is fixedly mounted on the front and rear ends of the edge banding 16 , a reinforcement plate 18 is fixedly mounted on the middle of the paddle 17 , and the outer protective tube 304 is fixedly mounted on the top of the reinforcement plate 18 ; When the above structure is in use, when the outer protective tube 304 moves up and down, the outer protective tube 304 will drive the first fixed ring 305, the second fixed ring 306 and the piston ring 301 to move relative to each other, that is, the piston ring 301 will move up and down relative to the inner wall of the fixed inner ring 401. When the piston ring 301 moves up and down, the piston ring 301 squeezes the damping fluid in the Tesla valve flow channel formed between the first fixed ring 305, the second fixed ring 306, the retaining ring 409, the guide plate 406 and the guide tube 407. And it flows back and forth in the Tesla valve flow channel. Since the Tesla valve cannot achieve completely unidirectional flow, it hinders the reverse flow. Since the guide plate 406 in the present invention has a central symmetrical structure, the reciprocating flow of the damping liquid in the Tesla valve composed of the guide plate 406 will be hindered, that is, it has a damping effect on the up and down movement of the piston ring 301, so that the outer protective tube 304 drives the first fixed ring 305, the second fixed ring 306 and the piston ring 301 to move alternately to achieve the purpose of buffering.

[0021] A plurality of first guide bars 6 are fixedly mounted on the surface of the support tube 1, and a plurality of second guide bars 7 are fixedly mounted on the inner wall of the connecting tube 5 at positions corresponding to the first guide bars 6. The first guide bars 6 and the second guide bars 7 are arranged alternately. Permanent magnets are provided in the first guide bars 6, and the magnetic properties of the permanent magnets in two adjacent first guide bars 6 are opposite. A coil is provided in the second guide bar 7 so that when the first guide bar 6 and the second guide bar 7 move alternately in the vertical direction, the coil in the second guide bar 7 generates alternating current. When the above structure is in use, when the outer protective tube 304 moves up and down, the outer protective tube 304 will drive the connecting tube 5 to move up and down, and the connecting tube 5 will drive the second guide bar 7 to move up and down along the direction of the first guide bar 6, so that the coil inside the second guide bar 7 generates an induced current. As a result, when the outer protective tube 304 drives the connecting tube 5 to move up and down more and more frequently, the induced current generated will become larger and larger.

[0022] The guide pipe 407 is fixedly passed through and extended to both ends of the first partition plate 404 and the second partition plate 405. Heat transfer oil is provided inside the guide pipe 407. A partition bar 408 is fixedly installed on the surface of the middle of the first partition plate 404, and the partition bar 408 is fixedly installed on the inner wall of the fixed outer ring 403. The top and bottom of the first partition plate 404 and the fixing frame 402 are respectively fixedly installed with a retaining ring 409, and the two retaining rings 409 are respectively fixedly installed on one end of the opposite surface of the first fixing ring 305 and the second fixing ring 306, so that the heat transfer oil from the guide plate 406 and the second fixing ring 306 is not lost. The damping fluid flowing out of the Tesla valve flow channel formed between the guide tubes 407 only flows back and forth in the piston ring 301, the first fixed ring 305, the second fixed ring 306 and the Tesla valve flow channel. A connecting groove 412 is opened on the inner wall of the outer protective tube 304 corresponding to the position of the retaining ring 409, and a connecting component 413 connecting the two connecting grooves 412 is fixedly embedded in the side wall of the outer protective tube 304, so that the inside of the top connecting groove 412, the inside of the top multiple guide tubes 407, the inside of the space formed by the surface of the fixed inner ring 401 and the fixing frame 402, and the bottom The interior of the plurality of guide pipes 407 and the bottom connecting groove 412 form a heat transfer oil circulation channel through a connecting component 413. The connecting component 413 includes an electric heating pipe 4131, and the coil in the second guide bar 7 is electrically connected to the electric heating pipe 4131 so that the electric heating pipe 4131 is heated by electricity. Connecting pipes 4132 are fixedly installed at both ends of the electric heating pipe 4131. The two departing ends of the two connecting pipes 4132 are respectively provided with one-way valves in opposite directions. A buffer hose 4133 is provided in the middle of the connecting pipe 4132. A rubber cover 410 is fixedly mounted on the top of the movable tube 302, and the rubber cover 410 is fixedly mounted on the top of the first fixed ring 305. A plurality of through holes 411 are formed in the middle of the sealing bellows 307, corresponding to the position inside the rubber cover 410. This allows the internal volume of the rubber cover 410 to change when the first movable tube 302 moves up and down. The through holes 411 cooperate with the one-way valves and buffer hoses 4133 at both ends of the two connecting tubes 4132 to circulate the thermal oil inside the thermal oil circulation channel. The guide tube 407 is made of thermal expansion material. When the above structure is in use, the electric heating tube 4131 is energized and heated. When the first movable tube 302 moves up and down, the first movable tube 302 will continuously squeeze and stretch the rubber cover 410 and change the volume of the rubber cover 410, so that the rubber cover 410 cooperates with the one-way valves in opposite directions at both ends of the two connecting tubes 4132 and the expandable buffer hose 4133 through the through hole 411, so that the heat transfer oil heated by the electric heating tube 4131 continuously circulates in the heat transfer oil circulation channel, so that the guide tube 407 made of a thermal expansion material component is evenly heated and expands, thereby increasing the resistance of the Tesla valve flow channel, further hindering the up and down movement of the piston ring 301, that is, when the blade 17 jumps up and down frequently due to waves, the up and down jumping of the blade 17 is further hindered, thereby achieving the purpose of adaptively adjusting the damping according to different needs.

[0023] Working principle: When in use, the invention drives the outer protective tube 304 up and down through the reinforcement plate 18 when the blade 17 bounces up and down due to the waves; When the outer protective tube 304 moves up and down, the outer protective tube 304 will drive the first fixed ring 305 and the second fixed ring 306 to move relative to the piston ring 301, that is, the piston ring 301 will move up and down relative to the inner wall of the fixed inner ring 401, and when the piston ring 301 moves up and down, the piston ring 301 will squeeze the damping fluid in the Tesla valve flow channel formed between the first fixed ring 305, the second fixed ring 306, the retaining ring 409, the guide plate 406 and the guide tube 407, and squeeze it. The reciprocating flow in the pull valve flow channel, because the Tesla valve is not able to achieve completely unidirectional flow, but rather hinders the reverse flow, and since the guide plate 406 of the present invention has a central symmetrical structure, the reciprocating flow of the damping liquid in the Tesla valve composed of the guide plate 406 is hindered, that is, the up and down movement of the piston ring 301 is damped, thereby causing the outer protective tube 304 to drive the staggered movement of the first and second fixing rings 305, 306 and the piston ring 301 to achieve the purpose of buffering; When the outer protective tube 304 moves up and down, the outer protective tube 304 drives the connecting tube 5 to move up and down, and the connecting tube 5 drives the second guide bar 7 to move up and down along the direction of the first guide bar 6, so that the coil inside the second guide bar 7 generates an induced current. This makes the induced current larger and larger when the outer protective tube 304 drives the connecting tube 5 to move up and down more and more frequently, so that the electric heating tube 4131 is energized and heated. When the piston ring 301 drives the first movable tube 302 and the second movable tube 303 to move up and down, the first movable tube 302 continuously squeezes and stretches the rubber cover 410 and changes the volume of the rubber cover 410, so that the rubber cover 410 continuously squeezes and stretches the inside of the top connecting groove 412, the inside of the top multiple guide tubes 407, and the fixed inner ring 413 through the through hole 411. The interior of the space formed by the surface 401 and the fixing frame 402, the interior of the multiple guide pipes 407 at the bottom, and the interior of the bottom connecting groove 412 are pressurized and relieved through the heat transfer oil circulation channel formed by the connecting component 413. In conjunction with the one-way valves at both ends of the two connecting pipes 4132 in opposite directions and the expandable buffer hose 4133, the heat transfer oil heated by the electric heating pipe 4131 is continuously circulated in the heat transfer oil circulation channel, so that the guide pipe 407 made of thermal expansion material is evenly heated and expands, thereby increasing the resistance of the Tesla valve flow channel, further hindering the up and down movement of the piston ring 301, that is, when the blade 17 jumps up and down frequently due to waves, further hindering the up and down movement of the blade 17, thereby achieving the purpose of adaptively adjusting the damping according to different needs; The third movable tube 308 is arranged to move up and down on the inner wall of the support tube 1, thereby guiding the movement of the third movable tube 308 and the support shaft 2. At the same time, the return spring 309 is provided to prevent the support shaft 2 from rigidly contacting the support tube 1 and to restore the movement of the support shaft 2. Example 2: In one embodiment, a mounting tube 414 is provided between two adjacent first partitions 404. An electromagnetic coil 415 is provided on the surface of the mounting tube 414. The electromagnetic coil 415 is directly electrically connected to the second guide bar 7 that generates induced alternating current. The damping fluid is a magnetorheological fluid composed of magnetic particles, a base carrier fluid, and an additive. By filling the Tesla valve flow channel with magnetorheological fluid damping fluid, when the blade 17 jumps up and down frequently due to the waves, the induced current generated by the coil in the second guide bar 7 will become larger and larger, which will make the magnetic field generated by the electromagnetic coil 415 larger and larger, that is, the viscosity of the magnetorheological fluid becomes higher and higher, thereby further improving the damping of the reciprocating flow of the magnetorheological fluid in the Tesla valve flow channel, that is, hindering the up and down movement of the piston ring 301, so that when the blade 17 jumps up and down frequently due to the waves, the up and down jumping of the blade 17 is further hindered, thereby achieving the purpose of adaptively adjusting the damping according to different needs.

[0024] Embodiment 3: In one embodiment, the mounting tube 414 is a metal member; Since the mounting tube 414 is made of metal material, when the blade 17 bounces up and down frequently due to the waves, the induced current generated by the coil in the second guide bar 7 will become larger and larger, which will make the magnetic field generated by the electromagnetic coil 415 larger and larger. Eddy currents will be generated inside the mounting tube 414 located in the alternating magnetic field of the electromagnetic coil 415, resulting in energy loss inside the mounting tube 414, causing the mounting tube 414 to heat up, and the heat is transferred to the guide tube 407 through the guide plate 406 and the heat-conducting oil, so that the guide tube 407 is heated. After being heated, the guide tube 407 will expand, thereby increasing the resistance of the Tesla valve flow channel, further hindering the up and down movement of the piston ring 301, that is, when the blade 17 bounces up and down frequently due to the waves, the up and down movement of the blade 17 is further hindered, thereby achieving the purpose of adaptively adjusting the damping according to different needs.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0026] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A trip stop based on a ship's suspended rudder, characterized by: include: A support tube (1) is fixedly arranged at the bottom of the paddle rod (11), the inner wall of the support tube (1) is movably provided with a support shaft (2) that moves vertically up and down, and the bottom of the support shaft (2) is provided with a buffer assembly; The buffer assembly comprises a piston ring (301), a first movable tube (302), a second movable tube (303), a first fixed ring (305) and a second fixed ring (306), and the piston ring (301) is fixedly connected to the bottom of the support shaft (2), so that the support shaft (2) drives the piston ring (301) to move up and down between the first fixed ring (305) and the second fixed ring (306), and a damping assembly is provided between the first fixed ring (305) and the second fixed ring (306); The damping assembly includes a fixed inner ring (401) movably connected to the surface of the piston ring (301), a fixed frame (402) is fixedly connected to the surface of the fixed inner ring (401), a fixed outer ring (403) is fixedly embedded in the middle of the side wall of the fixed frame (402) away from the fixed inner ring (401), a first baffle (404) and a second baffle (405) are fixedly connected in the middle of the fixed frame (402) in radial order, a plurality of guide plates (406) and a guide tube (407) are fixedly connected in the middle of the first baffle (404) and the second baffle (405), and a Tesla valve flow channel is formed, the guide plate (406) is a symmetrical structure in the middle so that both ends of the Tesla valve flow channel are unidirectional, the guide tube (407) has a deformation function so as to change the resistance of the liquid passing through the Tesla valve flow channel, and a damping liquid is provided in the Tesla valve flow channel.

2. The trip stopper based on a ship's suspended rudder according to claim 1, characterized in that: The inner wall of the support tube (1) is movably connected to a third movable tube (308) that moves up and down, and the surface of the third movable tube (308) is tightly fitted with the inner wall of the support tube (1). The third movable tube (308) is fixedly connected to the top of the support shaft (2). The bottom of the third movable tube (308) is fixedly connected to a return spring (309), and the return spring (309) is fixedly connected to the bottom of the inner wall of the support tube (1).

3. The trip stopper based on a ship's suspended rudder according to claim 2, characterized in that: The first movable tube (302) and the second movable tube (303) are fixedly connected to the top and bottom of the piston ring (301), respectively. The first movable tube (302) is movably connected to the inner wall of the first fixed ring (305), and the second movable tube (303) is movably connected to the inner wall of the second fixed ring (306). The surface of the piston ring (301) and the inner walls of the first fixed ring (305) and the second fixed ring (306) are respectively fixedly connected with sealing rings, so that there is a seal between the first movable tube (302) and the first fixed ring (305), and between the second movable tube (303) and the second fixed ring (306). Dynamic sealing is maintained between the piston ring (301) and the fixed inner ring (401), and sealing bellows (307) are fixedly connected between the top of the first movable tube (302) and the top of the first fixed ring (305), and between the bottom of the second movable tube (303) and the bottom of the second fixed ring (306), so as to enhance the sealing between the first movable tube (302) and the first fixed ring (305), and between the second movable tube (303) and the second fixed ring (306), and the surfaces of the first fixed ring (305) and the second fixed ring (306) are fixedly connected with an outer protective tube (304).

4. The trip stopper based on a ship's suspended rudder according to claim 3, characterized in that: The top of the outer protective tube (304) is fixedly connected to a connecting tube (5), the top of the connecting tube (5) is fixedly connected to a mounting frame (9), the bottom of the mounting frame (9) is fixedly connected to an upper fixing plate (8), and the connecting tube (5) passes through and extends to both ends of the upper fixing plate (8), the top of the support tube (1) is fixedly connected to a mounting plate (10), the mounting plate (10) is fixedly connected to the bottom of the paddle rod (11), and one end of the opposite surface of the mounting frame (9) and the paddle rod (11) is fixedly connected to a guide comb tooth bar (13), so that the relative movement of the mounting frame (9) and the paddle rod (11) is guided by the guide comb tooth bar (13). A sealing flexible tube (12) is fixedly connected between the mounting plate (10) and the mounting frame (9) to seal the connection tube (5) and the support tube (1). A reinforcing rib (14) is fixedly connected to the bottom of the upper fixing plate (8). The bottom of the reinforcing rib (14) is fixedly connected to the lower fixing plate (15). Both ends of the opposite surfaces of the upper fixing plate (8) and the lower fixing plate (15) are fixedly connected to edge banding strips (16), and the paddle (17) is fixedly connected to the front and rear ends of the edge banding strip (16). The middle of the paddle (17) is fixedly connected to the reinforcing plate (18), and the outer protective tube (304) is fixedly connected to the top of the reinforcing plate (18).

5. The trip stopper based on a ship's suspended rudder according to claim 4, characterized in that: A plurality of first guide bars (6) are fixedly connected to the surface of the support tube (1), a plurality of second guide bars (7) are fixedly connected to the inner wall of the connecting tube (5) at positions corresponding to the first guide bars (6), and the first guide bars (6) and the second guide bars (7) are arranged alternately, a permanent magnet is arranged in the first guide bar (6), and the magnetism of the permanent magnets in two adjacent first guide bars (6) is opposite, and a coil is arranged in the second guide bar (7), so that when the first guide bar (6) and the second guide bar (7) are moved alternately in the vertical direction, the coil in the second guide bar (7) generates alternating current.

6. The trip stopper based on a ship's suspended rudder according to claim 5, characterized in that: The guide tube (407) is fixedly passed through and extended to both ends of the first partition (404) and the second partition (405), and heat transfer oil is provided inside the guide tube (407). A partition bar (408) is fixedly connected to the surface of the middle portion of the first partition (404), and the partition bar (408) is fixedly connected to the inner wall of the fixed outer ring (403). The top and bottom of the first partition (404) and the fixed frame (402) are respectively fixedly connected to retaining rings (409), and the two retaining rings (409) are respectively fixedly connected to one end of the opposite surface of the first fixed ring (305) and the second fixed ring (306), so that a Tesla valve flow channel is formed between the guide plate (406) and the guide tube (407). The damping fluid only flows back and forth in the piston ring (301), the first fixed ring (305), the second fixed ring (306) and the Tesla valve flow channel. A connecting groove (412) is provided on the inner wall of the outer protective tube (304) at the position corresponding to the retaining ring (409), and a connecting component (413) connecting the two connecting grooves (412) is fixedly embedded in the side wall of the outer protective tube (304), so that a heat transfer oil circulation channel is formed inside the top connecting groove (412), inside the top multiple guide tubes (407), inside the space formed by the surface of the fixed inner ring (401) and the fixed frame (402), inside the bottom multiple guide tubes (407) and inside the bottom connecting groove (412) through the connecting component (413).

7. The trip stopper based on a ship's suspended rudder according to claim 6, characterized in that: The connecting component (413) includes an electric heating tube (4131), and the inner coil of the second guide bar (7) is electrically connected to the electric heating tube (4131) so that the electric heating tube (4131) is heated by electricity. Both ends of the electric heating tube (4131) are fixedly connected to connecting tubes (4132), and the two opposing ends of the connecting tubes (4132) are respectively provided with one-way valves in opposite directions. A buffer hose (4133) is provided in the middle of the connecting tube (4132).

8. The trip stopper based on a ship's suspended rudder according to claim 7, characterized in that: The top of the first movable tube (302) is fixedly connected to a rubber cover (410), and the rubber cover (410) is fixedly connected to the top of the first fixed ring (305). The sealing bellows (307) is provided with a plurality of through holes (411) in the middle portion corresponding to the internal position of the rubber cover (410), so that the internal volume of the rubber cover (410) changes when the first movable tube (302) moves up and down, and the one-way valves and the buffer hose (4133) at both ends of the two connecting tubes (4132) are coordinated through the through holes (411) to circulate the heat transfer oil inside the heat transfer oil circulation channel. The guide tube (407) is a component made of thermal expansion material.

9. The trip stopper based on a ship's suspended rudder according to claim 8, characterized in that: A mounting tube (414) is provided between two adjacent first partitions (404), an electromagnetic coil (415) is provided on the surface of the mounting tube (414), and the electromagnetic coil (415) is directly electrically connected to a second guide bar (7) that generates induced alternating current.

10. The trip stopper based on a ship's suspended rudder according to claim 9, characterized in that: The mounting tube (414) is a metal component.

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