Sediment-proof tail shaft sealing device for ship steering oar
By designing mud cleaning components and telescopic components in the stern shaft sealing device of the ship rudder paddle, the problem of reduced sealing due to silt accumulation during rotation of the rudder paddle is solved, and a more efficient sealing effect and a longer service life are achieved.
Patent Information
- Application Number
- CN202421455055.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-25
AI Technical Summary
The ship's rudder paddle is prone to lift up mud and sand when it rotates in water, resulting in a reduction in the sealing property of the tail shaft sealing device and poor use effect.
A ship rudder paddle anti-silt tail shaft sealing device is designed, including a sludge cleaning assembly and a telescopic assembly. The mud cleaning assembly drives the displacement of the mud cleaning plate to clean up the mud and sand through the gear and pulley system, and the telescopic assembly drives the mud cleaning plate to completely clean up the mud and sand around the rudder paddle by spring.
It effectively cleans up the accumulation of silt and sand, avoids friction between silt and sand and the sealing device, improves the sealing effect, and extends the service life of the sealing device.
Smart Images
Figure CN222522850U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of ships, and particularly relates to a ship rudder propeller anti-silt tail shaft sealing device. Background Art
[0002] A propeller is a type of rudder propeller, a device that converts the rotational power of the engine into ship propulsion power. The rudder propeller generates power by the rotation of the blades in the water. Its principle is the reverse thrust generated by rotation.
[0003] When the rudder propeller of a ship rotates in the water, it is easy to stir up the mud and sand in the water. The distance between the rudder propeller and the tail shaft connected to it is relatively close, so that the mud and sand stirred up in the water adhere to the sealing device arranged on the tail shaft. Under the long-term adhesion, it is easy to accumulate and form a mud pile. The mud pile is in close contact with the sealing device. When the tail shaft rotates, the mud and sand continuously generate friction with the sealing device, thereby destroying the sealing performance of the sealing device, greatly reducing its sealing effect, and the use effect is poor. Utility Model Content
[0004] The purpose of the utility model is to solve the problem that when the rudder propeller in the current ship rotates in the water, it is easy to stir up the mud and sand in the water, and the distance between the rudder propeller and the tail shaft connected to it is relatively close, so that the mud and sand stirred up in the water adhere to the sealing device arranged on the tail shaft. Under the long-term adhesion, it is easy to accumulate and form a mud pile, and the mud pile is in close contact with the sealing device. When the tail shaft rotates, the mud and sand continuously generate friction with the sealing device, thereby destroying the sealing performance of the sealing device, greatly reducing its sealing effect, and the use effect is not good. The proposed ship rudder propeller anti-mud tail shaft sealing device is provided.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a ship rudder propeller anti-silt tail shaft sealing device, comprising a shell, a sealing ring is arranged on one side of the shell, a power shaft is rotatably mounted on the inner wall of the sealing ring, a rudder propeller is fixedly mounted on one end of the power shaft, a mud cleaning component is arranged on one side of the shell, and a telescopic component is arranged on the mud cleaning component;
[0006] The mud clearing assembly includes a first gear and a second gear. The first gear is fixedly mounted on the outer wall of the power shaft, and the second gear is rotatably mounted on the inner wall of the housing through a bracket. The first gear and the second gear are meshingly connected.
[0007] As a further description of the above technical solution:
[0008] A power rod is fixedly mounted on the outer wall of the second gear, a transmission rod is rotatably mounted on the inner wall of one side of the shell, and the transmission rod passes through a through hole arranged on one side of the shell.
[0009] As a further description of the above technical solution:
[0010] A first bevel gear is fixedly mounted on one end of the transmission rod, a pulley is fixedly mounted on the outer wall of the other end of the transmission rod and one end of the power rod, and a belt is arranged on the outer wall of the pulley.
[0011] As a further description of the above technical solution:
[0012] A threaded rod is rotatably mounted on the outer wall of one side of the shell through a bracket, a second bevel gear is fixedly mounted on the outer wall of one end of the threaded rod, and the first bevel gear is meshedly connected with the second bevel gear.
[0013] As a further description of the above technical solution:
[0014] An internal threaded ring is threadedly installed on the outer wall of the threaded rod, a connecting block is fixedly installed on the outer wall of the internal threaded ring, a first mud cleaning plate is fixedly installed on the outer wall of the connecting block, and the outer wall of one side of the shell is slidably connected to the first mud cleaning plate.
[0015] As a further description of the above technical solution:
[0016] The telescopic assembly includes a second mud cleaning plate, a telescopic rod is fixedly installed on the bottom of the second mud cleaning plate, the other end of the telescopic rod is fixedly installed on the inner wall of the bottom of the first mud cleaning plate, a spring is mounted on the outer wall of the telescopic rod, and the inner wall of the first mud cleaning plate is slidably connected to the second mud cleaning plate.
[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0018] 1. In the utility model, a mud cleaning component is provided, when the power shaft drives the rudder paddle to rotate, it also drives the first gear to rotate, the first gear is meshed with the second gear, so that it drives the second gear to rotate, and the second gear drives the power rod to rotate, the power rod drives the transmission rod to rotate through the pulley and the belt, the transmission rod drives the first bevel gear to rotate, the first bevel gear and the second bevel gear are meshed and connected, so that the first bevel gear drives the second bevel gear to rotate, and the second bevel gear drives the threaded rod to rotate, the outer wall of the threaded rod is threadedly connected with the inner threaded ring, and the threaded rod rotates while driving the inner threaded ring to move on its outer wall, and the inner threaded ring drives the first mud cleaning plate to move through the connecting block to clean up mud and sand. Through this design, it is effectively realized that the mud and sand piles generated by mud and sand accumulation are cleaned up, and the continuous friction between mud and sand and the sealing device is avoided, and the sealing performance of the sealing device is prevented from being damaged, the sealing effect is greatly improved, and the use effect is good.
[0019] 2. In the utility model, a telescopic component is provided. When the first mud cleaning plate is displaced, it drives the second mud cleaning plate to be displaced. When the first mud cleaning plate is displaced, it contacts the power shaft. The power shaft squeezes the second mud cleaning plate to retract it into the first mud cleaning plate. At the same time, the telescopic rod contracts and the spring is compressed to form a compressed state. When the second mud cleaning plate no longer contacts the power shaft, the second mud cleaning plate is ejected from the first mud cleaning plate due to the elastic force of the spring. Through this design, the mud and sand around the power shaft can be effectively cleaned, so that the mud cleaning plate can clean the mud and sand more comprehensively and has a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the ship's rudder propeller anti-silt tail shaft sealing device.
[0021] Figure 2 This is a three-dimensional structural schematic diagram of the mud cleaning component in the ship's rudder propeller anti-mud tail shaft sealing device.
[0022] Figure 3 It is a three-dimensional structural schematic diagram of the telescopic component in the ship's rudder propeller anti-silt tail shaft sealing device.
[0023] Figure 4 This is an enlarged structural schematic diagram of point A in the ship's rudder propeller anti-silt tail shaft sealing device.
[0024] Legend:
[0025] 1. Housing; 2. Sealing ring; 3. Rudder paddle; 4. Mud cleaning assembly; 41. First gear; 42. Second gear; 43. Power rod; 44. Transmission rod; 45. Pulley; 46. Belt; 47. First bevel gear; 48. Second bevel gear; 49. Threaded rod; 410. First mud cleaning plate; 411. Internal threaded ring; 412. Connecting block; 5. Power shaft; 6. Telescopic assembly; 61. Second mud cleaning plate; 62. Telescopic rod; 63. Spring. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] See also Figure 1-4The utility model provides a technical solution: a ship rudder propeller anti-silt tail shaft sealing device, comprising a shell 1, a sealing ring 2 is arranged on one side of the shell 1, a power shaft 5 is rotatably mounted on the inner wall of the sealing ring 2, a rudder propeller 3 is fixedly mounted on one end of the power shaft 5, a mud cleaning component 4 is arranged on one side of the shell 1, and a telescopic component 6 is arranged on the mud cleaning component 4;
[0028] The mud cleaning assembly 4 includes a first gear 41 and a second gear 42. The first gear 41 is fixedly mounted on the outer wall of the power shaft 5. The second gear 42 is rotatably mounted on the inner wall of the housing 1 through a bracket. The first gear 41 and the second gear 42 are meshed and connected.
[0029] A power rod 43 is fixedly mounted on the outer wall of the second gear 42, a transmission rod 44 is rotatably mounted on the inner wall of one side of the shell 1, the transmission rod 44 passes through a through hole provided on one side of the shell 1, a first bevel gear 47 is fixedly mounted on one end of the transmission rod 44, a pulley 45 is fixedly mounted on the outer wall of the other end of the transmission rod 44 and one end of the power rod 43, a belt 46 is provided on the outer wall of the pulley 45, a threaded rod 49 is rotatably mounted on the outer wall of one side of the shell 1 through a bracket, a second bevel gear 48 is fixedly mounted on the outer wall of one end of the threaded rod 49, the first bevel gear 47 and the second bevel gear 48 are meshedly connected, an internal threaded ring 411 is threadedly mounted on the outer wall of the threaded rod 49, a connecting block 412 is fixedly mounted on the outer wall of the internal threaded ring 411, a first mud cleaning plate 410 is fixedly mounted on the outer wall of the connecting block 412, and the outer wall of one side of the shell 1 and the first mud cleaning plate 410 are slidably connected;
[0030] The specific implementation method is as follows: when the power shaft 5 drives the steering paddle 3 to rotate, it also drives the first gear 41 to rotate. The first gear 41 is meshed with the second gear 42, so that it drives the second gear 42 to rotate. The second gear 42 drives the power rod 43 to rotate. The power rod 43 drives the transmission rod 44 to rotate through the pulley 45 and the belt 46. The transmission rod 44 drives the first bevel gear 47 to rotate. The first bevel gear 47 is meshed with the second bevel gear 48, so that the first bevel gear 47 drives the second bevel gear 48 to rotate. The second bevel gear 48 drives the threaded rod 49 to rotate. The outer wall of the threaded rod 49 is threadedly connected with the internal threaded ring 411. When the threaded rod 49 rotates, it drives the internal threaded ring 411 to move on its outer wall. The internal threaded ring 411 drives the first mud cleaning plate 410 to move through the connecting block 412 to clean up the mud and sand.
[0031] The telescopic assembly 6 includes a second mud cleaning plate 61, a telescopic rod 62 is fixedly installed at the bottom of the second mud cleaning plate 61, the other end of the telescopic rod 62 is fixedly installed on the inner wall of the bottom of the first mud cleaning plate 410, and a spring 63 is sleeved on the outer wall of the telescopic rod 62, and the inner wall of the first mud cleaning plate 410 is slidably connected to the second mud cleaning plate 61;
[0032] The specific implementation method is as follows: when the first mud cleaning plate 410 is displaced, it drives the second mud cleaning plate 61 to be displaced, and when it is displaced, it contacts the power shaft 5, and the power shaft 5 squeezes the second mud cleaning plate 61 to make it retract into the interior of the first mud cleaning plate 410. At the same time, the telescopic rod 62 contracts, and the spring 63 is compressed to form a compressed state. When the second mud cleaning plate 61 no longer contacts the power shaft 5, due to the elastic force of the spring 63, the second mud cleaning plate 61 is ejected from the interior of the first mud cleaning plate 410.
[0033] Working principle: when the power shaft 5 drives the steering paddle 3 to rotate, it also drives the first gear 41 to rotate. The first gear 41 is meshed with the second gear 42, so that it drives the second gear 42 to rotate. The second gear 42 drives the power rod 43 to rotate. The power rod 43 drives the transmission rod 44 to rotate through the pulley 45 and the belt 46. The transmission rod 44 drives the first bevel gear 47 to rotate. The first bevel gear 47 is meshed with the second bevel gear 48, so that the first bevel gear 47 drives the second bevel gear 48 to rotate. The second bevel gear 48 drives the threaded rod 49 to rotate. The outer wall of the threaded rod 49 is threadedly connected with the internal thread ring 411. When the threaded rod 49 rotates, it drives the internal threaded ring 411 to move on its outer wall. The internal threaded ring 411 drives the first mud cleaning plate 410 to move through the connecting block 412 to clean up the mud and sand. When the first mud cleaning plate 410 moves, it drives the second mud cleaning plate 61 to move. When it moves, it contacts the power shaft 5. The power shaft 5 squeezes the second mud cleaning plate 61 to retract it into the interior of the first mud cleaning plate 410. At the same time, the telescopic rod 62 contracts and the spring 63 is compressed to form a compressed state. When the second mud cleaning plate 61 no longer contacts the power shaft 5, the second mud cleaning plate 61 is ejected from the interior of the first mud cleaning plate 410 due to the elastic force of the spring 63.
[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A ship rudder propeller anti-silt tail shaft sealing device, comprising a housing (1), characterized in that: A sealing ring (2) is provided on one side of the housing (1); a power shaft (5) is rotatably mounted on the inner wall of the sealing ring (2); a rudder propeller (3) is fixedly mounted on one end of the power shaft (5); a mud clearing assembly (4) is provided on one side of the housing (1); and a telescopic assembly (6) is provided on the mud clearing assembly (4); The mud clearing assembly (4) comprises a first gear (41) and a second gear (42); the first gear (41) is fixedly mounted on the outer wall of the power shaft (5); the second gear (42) is rotatably mounted on the inner wall of the housing (1) via a bracket; the first gear (41) and the second gear (42) are meshingly connected.
2. The ship propeller anti-silt tail shaft sealing device according to claim 1 is characterized in that: A power rod (43) is fixedly mounted on the outer wall of the second gear (42), and a transmission rod (44) is rotatably mounted on the inner wall of one side of the outer shell (1), and the transmission rod (44) passes through a through hole provided on one side of the outer shell (1).
3. The ship rudder propeller anti-silt tail shaft sealing device according to claim 2 is characterized in that: A first bevel gear (47) is fixedly mounted on one end of the transmission rod (44), a pulley (45) is fixedly mounted on the outer wall of the other end of the transmission rod (44) and one end of the power rod (43), and a belt (46) is arranged on the outer wall of the pulley (45).
4. The ship propeller anti-silt tail shaft sealing device according to claim 3 is characterized in that: A threaded rod (49) is rotatably mounted on the outer wall of one side of the housing (1) via a bracket, a second bevel gear (48) is fixedly mounted on the outer wall of one end of the threaded rod (49), and the first bevel gear (47) is meshingly connected with the second bevel gear (48).
5. The ship propeller anti-silt tail shaft sealing device according to claim 4, characterized in that: An internal threaded ring (411) is threadedly mounted on the outer wall of the threaded rod (49), a connecting block (412) is fixedly mounted on the outer wall of the internal threaded ring (411), a first mud cleaning plate (410) is fixedly mounted on the outer wall of the connecting block (412), and the outer wall of one side of the housing (1) is slidably connected to the first mud cleaning plate (410).
6. The ship rudder propeller anti-silt tail shaft sealing device according to claim 5, characterized in that: The telescopic assembly (6) comprises a second mud cleaning plate (61), a telescopic rod (62) is fixedly mounted on the bottom of the second mud cleaning plate (61), the other end of the telescopic rod (62) is fixedly mounted on the inner wall of the bottom of the first mud cleaning plate (410), a spring (63) is sleeved on the outer wall of the telescopic rod (62), and the inner wall of the first mud cleaning plate (410) is slidably connected to the second mud cleaning plate (61).