Propulsion device for combined straight-wing steering oar ship

Abstract

The utility model relates to the field of ship propelling, and discloses a propelling device for a combined straight wing steering oar ship. The device comprises paddle assemblies, a power input shaft, a main reduction gearbox and a center rotating seat, the multiple paddle assemblies are detachably connected with the center rotating seat, the center rotating seat is connected with a speed reduction main shaft in the main reduction gearbox, and the speed reduction main shaft is connected with the power input shaft. The propeller has the advantages that the modular design concept is innovatively applied, and by means of the detachable connecting structure of the propeller blade assembly and the center rotating seat, when the propeller blades are damaged, the whole propelling device does not need to be disassembled tediously, and only the damaged propeller blade assembly needs to be replaced in a targeted mode. The design greatly simplifies the maintenance process, is particularly suitable for ships sailing in shallow water areas, can quickly replace damaged paddle assemblies, can reduce the maintenance time and reduce the halting cost of the ships, and remarkably improves the availability and operation efficiency of the ships.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of ship propulsion, especially relates to a combined straight wing rudder propeller ship propulsion device. BACKGROUND

[0002] The straight wing rudder propeller is a new type of ship propeller, and the ship adopting the straight wing rudder propeller has the advantages of high propulsion efficiency, good maneuverability, shallow draft and high integration compared with the propeller. The efficient straight wing rudder propeller can be used for transport ships, and is also suitable for ocean engineering ships, high-speed ships and military vessels.

[0003] As shown in Figure 6 The straight wing rudder propeller device in the prior art mainly comprises 1' propeller power input flange, 2' reduction gear box, 3' steering power equipment, 4' rotating drum, 5' propeller blade and 6' ship body installation base support member.

[0004] The main structure and principle are as follows: input power (diesel engine, motor and the like) drives the rotation of the main shaft, and the rotating drum is fixed on the hollow main shaft and rotates together. The propeller blade is rotationally connected around the rotating disc, and when the propeller blade revolves with the rotating disc, the propeller blade is meshed with the central gear fixed on the central shaft through the gear on the shaft, and the central shaft is fixed on the rudder. The transmission relationship between the propeller blade gear and the central gear is 2:1. When the rudder locks the central gear, the propeller blade gear rotates around the central gear, that is, the rotating drum rotates one revolution, and the propeller blade rotates half a revolution around its own axis. When the propeller blade rotates one revolution in the water with the rotating disc, the propeller blade will generate water power at different positions of the rotating disc, and the resultant force is the thrust generated by the propeller.

[0005] The propeller blade of the straight wing rudder propeller is fixedly installed in the rotating drum through a bearing, and the rotating drum is integrated as a whole. If the propeller blade is damaged due to collision during the navigation of the ship, the straight wing rudder propeller device needs to be disassembled and repaired or replaced as a whole. For some ships navigating in shallow water, the propeller blade is more likely to be damaged due to collision, and the replacement and repair work is very inconvenient. SUMMARY

[0006] In view of the above technical problems, the utility model provides a combined straight wing rudder propeller ship propulsion device, which can replace the propeller blade and is convenient to repair.

[0007] The above technical purpose of the utility model is realized by the following technical scheme.

[0008] A combined straight wing rudder propeller ship propulsion device, which comprises a propeller blade assembly, a power input shaft, a main reduction box, a central rotating seat and a rudder reduction box, a plurality of propeller blade assemblies are detachably connected with the central rotating seat, the central rotating seat is connected with a reduction main shaft in the main reduction box, the reduction main shaft is connected with the power input shaft, and the rudder reduction box is connected with the main reduction box.

[0009] By adopting the above technical scheme, the plurality of paddle assemblies are detachably connected with the central rotating seat, when the paddle is damaged, only the damaged paddle assembly needs to be replaced, without the need to disassemble the entire device, thereby simplifying the maintenance process. For ships that need frequent maintenance, maintenance time can be reduced and downtime cost can be reduced. Since the disassembly and replacement of the paddle assembly is relatively simple, the maintenance efficiency of the ship after the paddle is damaged can be significantly improved, and the ship is suitable for sailing in shallow water areas, because the paddle is prone to collision and damage in these areas, and quick maintenance can minimize the downtime of the ship. The combined straight vane paddle device has a modular characteristic, and the damaged part can be replaced individually without the need to replace the entire device. The conventional straight vane paddle device usually needs to be disassembled and repaired or replaced when the paddle is damaged, and the utility model can only replace the damaged paddle assembly, thereby reducing unnecessary replacement of parts and reducing maintenance cost.

[0010] Further provided, the paddle assembly comprises a paddle, a paddle shaft, a support bearing, a paddle gear and a paddle seat, the paddle is connected with the paddle shaft, the paddle shaft is installed on the paddle seat through the support bearing, and the paddle shaft shaft body is connected with the paddle gear.

[0011] By adopting the above technical scheme, the connection of the paddle and the paddle shaft provides stable rotating support for the paddle, so that the paddle can maintain an efficient operating state during rotation. The paddle shaft is installed on the paddle seat through the support bearing, which reduces excessive friction of other parts during rotation of the paddle, prolongs the service life of the paddle assembly, and improves the wear resistance and stability of the system. The paddle gear can realize efficient transmission of the paddle by being connected with the paddle shaft. When the power is transmitted through the paddle gear, the paddle can rotate at an appropriate angle and speed, improving the propulsion efficiency. The support bearing provides stable support for the paddle shaft, so that the paddle can maintain a low friction coefficient during rotation, thereby reducing wear, reducing the maintenance frequency of the paddle assembly, prolonging the overall service life of the equipment, and reducing the risk of failure caused by excessive wear.

[0012] Further provided, the paddle seat and the central rotating seat are connected through connecting bolts.

[0013] By adopting the above technical scheme, the paddle seat and the center rotating seat are connected by bolts, so that the crew can quickly disassemble or replace the paddle assembly without the need to disassemble other complex parts, simplifying the maintenance process. When the paddle is damaged or needs regular maintenance, time and labor can be saved, and the downtime of the ship can be reduced. The connecting bolts provide a strong mechanical connection, keeping the paddle seat and the center rotating seat in stable contact and preventing loosening or deviation during operation. This can maintain the efficient operation of the paddle and avoid failures or efficiency losses due to loosening, thereby improving the overall stability of the propulsion device. The bolt connection allows the connection between the paddle seat and the center rotating seat to be operated by standardized components. This not only simplifies the production and assembly process, but also controls the production and maintenance costs of the device, increasing the replicability and maintainability of the equipment.

[0014] Further provided, a seal is provided between the paddle seat and the center rotating seat.

[0015] By adopting the above technical scheme, the seal effectively prevents seawater, dirt or other liquids from entering the connection between the paddle seat and the center rotating seat, avoiding corrosion or damage to internal components by moisture and contaminants, and improving the long-term reliability and corrosion resistance of the device. The presence of the seal effectively improves the sealing performance between the paddle seat and the center rotating seat, preventing water from entering the inner cavity of the propulsion system. This not only improves the propulsion efficiency of the ship and avoids system failures caused by water ingress, but also prevents damage to other components caused by water leakage, ensuring the normal operation of the propulsion system. The seal not only prevents water and dirt from entering, but also reduces friction, maintaining smooth operation between the paddle assembly and the center rotating seat, reducing wear and tear on mechanical components, and extending the service life of the propulsion system. Seawater contains salt and impurities, and equipment exposed to seawater for a long time is prone to corrosion or clogging. The seal can effectively isolate contaminants and prevent them from entering the propulsion system, maintaining efficient operation of the equipment and reducing damage and performance degradation caused by the accumulation of contaminants. The design of the seal can also effectively adapt to changing working environments, including high pressure, low temperature and other extreme conditions, ensuring stable operation of the equipment under these conditions. In addition, the seal can prevent water leakage or system failure caused by water pressure changes or temperature fluctuations, ensuring the reliability of the propulsion system in various marine environments.

[0016] Further provided, a center gear and a bridge gear are provided in the center rotating seat, and the center gear is engaged with the bridge gear.

[0017] By adopting the above technical scheme, the meshing of the center gear and the overbridge gear makes the power transmission inside the center rotating seat more stable and efficient. The overbridge gear functions to transmit power from the center gear to the paddle gear, thereby minimizing energy loss in the transmission system, improving the efficiency of the entire propulsion system, effectively utilizing input power, and improving the propulsion effect of the ship. Through the precise meshing of the center gear and the overbridge gear, the input power can be adapted to the appropriate speed and torque output, ensuring that the speed and thrust of the paddle rotation reach the optimal working state. The center gear and the overbridge gear enable the paddle to have a reasonable rotation angle and stability during operation, thereby enhancing the working effect of the propeller. The meshing of the center gear and the overbridge gear enables more stable power transmission, reduces the possibility of vibration and noise in the system, improves the stability of the propulsion system, and prolongs the service life of the gears and other related components, reducing wear and failure caused by excessive vibration. The reasonable meshing of the gears can effectively share the impact load during power transmission, reducing the risk of damage caused by high load operation or collision. The overbridge gear can balance the stress and load in the system, enhance the impact resistance of the overall system, and improve the reliability of the equipment.

[0018] Further arrangement, the main reduction box is provided with a rudder reduction box, the rudder reduction box includes a rudder, a worm, a worm gear, a center shaft, the rudder is connected with the worm, the worm gear is connected with the center shaft, and the worm gear is matched with the worm.

[0019] By adopting the above technical scheme, the rudder reduction box has a worm gear, the worm is connected with the rudder, the worm gear is connected with the center shaft, the rudder can drive the center shaft to accurately control the angle of the paddle through the worm gear. Through the reduction process, the rudder can more accurately respond to the control instruction, realize more delicate heading adjustment, and improve the maneuverability of the ship. The setting of the rudder reduction box can effectively increase the torque generated by the rudder, realize the function of small rudder with large torque. The worm gear in the rudder reduction box has the function of reverse self-locking, so that the power can only be transmitted from the rudder to the paddle, and the power will not be transmitted in the opposite direction due to the impact of the paddle by the water flow, thereby interfering with or damaging the rudder. The rudder reduction box can make the rudder respond more quickly, help the ship quickly adjust the heading, and the rudder can work more efficiently with the straight wing rudder paddle during turning, obstacle avoidance or high-speed sailing.

[0020] Further arrangement, the center gear is connected with the center shaft, and the center gear is installed on the reduction main shaft through a bearing.

[0021] By adopting the above technical scheme, the central gear is directly connected with the central shaft, the relative position of the paddle can be adjusted by the central shaft to adjust the thrust direction, the central gear is installed on the reduction main shaft through the bearing, the transmission path is simplified, the energy consumption of the intermediate link is avoided, the overall power transmission efficiency is improved, the energy use of the ship propulsion system is more efficient, the structure of the transmission system is simplified, the number of required components is reduced, the system is more compact and reliable, and the maintenance and repair in the later period are facilitated, the load bearing capacity of the system can be enhanced through the cooperation of the reduction main shaft and the central gear by direct connection, the force transmission is more direct due to the reduction of the intermediate link, the stability and load bearing capacity of the overall system under high load condition are improved, and the components are prevented from being damaged too early.

[0022] Further arrangement, the bridge gear is engaged with the paddle gear.

[0023] By adopting the above technical scheme, the engagement of the bridge gear and the paddle gear can stably transmit power, reduce vibration and impact in the power transmission process, improve the operation stability of the overall system, and reduce the risk of mechanical failure. The engagement of the bridge gear and the paddle gear provides an accurate power transmission path, reduces the error between the gears and the sliding between the tooth surfaces, thereby enhancing the control accuracy of the propeller. The engagement of the bridge gear and the paddle gear ensures efficient transmission of torque, so that each paddle can obtain sufficient torque during rotation, which can improve the overall efficiency of the propulsion system and ensure that the ship can more easily overcome water flow resistance to improve speed. The engagement of the bridge gear and the paddle gear provides flexibility to adapt to power transmission requirements under different load conditions. When the load is large or the ship faces stronger water flow resistance, the power can be effectively distributed to ensure the stability and durability of the propulsion system.

[0024] Further arrangement, the paddle gear is engaged with the bridge gear, the bridge gear is engaged with the central gear, and the engagement transmission ratio between the paddle gear and the central gear is 2:1.

[0025] By adopting the above technical scheme, the transmission ratio is 2:1, the paddle gear will rotate half a circle when the central gear rotates one circle, and the 360° direction of the central gear rotation is exactly the 360° direction of the thrust. When the central gear is fixed and does not rotate, the bridge gear is driven by the central rotating seat, and then the central gear is rotated, so that the paddle rotates periodically and regularly with the central rotating seat, the paddle rotates half a circle when the central rotating seat rotates one circle, the paddle rotates with the central rotating seat, and the resultant force direction is consistent, so that the straight wing rudder paddle generates a directional thrust.

[0026] In summary, the utility model has the following beneficial effects:

[0027] 1. The utility model discloses a modular design, the detachable connection of paddle assembly and center rotating seat makes the paddle damage when not needing to disassemble entire propelling device, only needs to replace the damaged paddle assembly. Simplify the maintenance process, be applicable to the ship of shallow water area navigation, quickly replace the damaged paddle assembly, can reduce the maintenance time and reduce the cost of ship's shutdown, improve the availability and operation efficiency of ship.

[0028] 2. The utility model discloses a sealing element is set up, prevents moisture, dirt or other liquid from entering the connecting part between paddle seat and center rotating seat, avoids corrosion and damage, improves the corrosion resistance of system. The sealing element also reduces the friction, prolongs the service life of equipment. In addition, simplify the structure, reduce the potential failure point in system, improve the reliability of whole system, reduce the maintenance cost.

[0029] 3. The utility model discloses a rudder motor reduction gearbox, makes the rudder motor increase the torque through deceleration, and can accurately control the angle of paddle. The worm and gear in rudder motor reduction gearbox has the function of reverse self-locking, makes power only from rudder motor to paddle. Rudder motor reduction gearbox makes the rudder motor more accurately respond control instruction, realizes more delicate heading adjustment, improves the maneuverability of ship, can more efficiently cooperate the work of straight wing rudder paddle. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structure schematic diagram of combined straight wing rudder paddle ship propelling device.

[0031] Figure 2 It is the assembly connection diagram of paddle assembly and center rotating seat.

[0032] Figure 3 It is the assembly split diagram of paddle assembly and center rotating seat.

[0033] Figure 4 It is Figure 3 The enlarged view of A in

[0034] Figure 5 It is the structure schematic diagram of rudder motor reduction gearbox.

[0035] Figure 6 It is the structure schematic diagram of prior art straight wing rudder paddle device.

[0036] Reference signs, 1, paddle assembly;1-1, paddle;1-2, paddle shaft;1-3, support bearing;1-4, paddle gear;1-5, paddle seat;

[0037] 2, power input shaft;

[0038] 3, main reduction gearbox;3-1, reduction main shaft;

[0039] 4, center rotating seat; 4-1, connecting bolt; 4-2, sealing element; 4-3, center gear; 4-4, over-bridge gear;

[0040] 5, rudder reduction box; 5-1, rudder; 5-2, worm; 5-3, worm wheel; 5-4, center shaft. DETAILED DESCRIPTION

[0041] The preferred embodiment of the utility model is described in detail below in combination with the drawings.

[0042] As shown in the drawings, the preferred embodiment of the combined straight wing rudder propeller ship propelling device comprises a propeller assembly 1, a power input shaft 2, a main reduction box 3, a center rotating seat 4 and a rudder reduction box 5, a plurality of propeller assemblies 1 are detachably connected with the center rotating seat 4, the center rotating seat 4 is connected with a reduction main shaft 3-1 in the main reduction box 3, the reduction main shaft 3-1 is connected with the power input shaft 2, and the rudder reduction box 5 is connected with the main reduction box 3. Figures 1-5 The propeller assembly 1 comprises a propeller 1-1, a propeller shaft 1-2, a supporting bearing 1-3, a propeller gear 1-4 and a propeller seat 1-5, the propeller 1-1 is connected with the propeller shaft 1-2, the propeller shaft 1-2 is installed on the propeller seat 1-5 through the supporting bearing 1-3, and the propeller shaft 1-2 shaft body is connected with the propeller gear 1-4. The propeller seat 1-5 is connected with the center rotating seat 4 through the connecting bolt 4-1. The sealing element 4-2 is arranged between the propeller seat 1-5 and the center rotating seat 4.

[0043] The center rotating seat 4 is provided with the center gear 4-3 and the over-bridge gear 4-4, the center gear 4-3 is engaged with the over-bridge gear 4-4. The center gear 4-3 is connected with the reduction main shaft 3-1. The over-bridge gear 4-4 is engaged with the propeller gear 1-4. The transmission ratio between the propeller gear 1-4 and the center gear 3-2 is 2:1.

[0044] The rudder reduction box 5 comprises a rudder 5-1, a worm 5-2, a worm wheel 5-3 and a center shaft 5-4, the rudder 5-1 is connected with the worm 5-2, the worm wheel 5-3 is connected with the center shaft 5-4, and the worm wheel 5-3 is matched with the worm 5-2. The power input shaft 2 is the power source of the whole propelling device, and the power is provided by the main engine of the ship. The power is transmitted to the reduction main shaft 3-1 in the main reduction box 3 through the power input shaft, the reduction main shaft 3-1 transmits the power to the center rotating seat 4, and the center rotating seat 4 rotates with the four propeller assemblies 1.

[0045]

[0046] ​The center gear 4-3 and the bridge gear 4-4 are located in the center rotating seat 4, and the paddle gear 1-4 is located in the paddle seat 1-5. One center gear 4-3, four bridge gears 4-4, and four paddle gears 1-4 transmit power through the meshing of the gears. The center bridge gear 4-42 is controlled by the rudder, which adjusts the direction of the power during this process.

[0047] The paddle assembly 1 includes a paddle 1-1, a paddle shaft 1-2, a support bearing 1-3, a paddle gear 1-4, and a paddle seat 1-5. The paddle shaft 1-2 is fixed in the paddle seat 1-5 through the support bearing 1-3, which provides rotational support for the paddle 1-1, reducing friction and wear.

[0048] After the power is transmitted through the main reduction box 3, it is finally transmitted to the paddle gear 1-4. The bridge gear 4-4

[0049] Under the drive of the paddle gear 1-4, the paddle 1-1 begins to rotate. The rotation of the paddle 1-1 is to rotate with the center rotating seat 4 and generate a propelling force in the water, pushing the ship forward. Through cooperation with the support bearing 1-3, the paddle 1-1 maintains low friction, ensuring efficient operation.

[0050] To ensure the stability of the propulsion device, the paddle seat 1-5 is connected to the center rotating seat 4 through connecting bolts 4-1, ensuring that the paddle assembly 1 is firmly connected to other components during the rotation of the paddle 1-1. This connection method facilitates the disassembly and replacement of damaged paddle assemblies 1, and can save time during maintenance and reduce downtime costs.

[0051] The seal 4-2 is arranged between the paddle seat 1-5 and the center rotating seat 4 to prevent liquid such as seawater and dirt from entering the connection between the paddle seat 1-5 and the center rotating seat 4. It can effectively improve the waterproofness and corrosion resistance of the device, prolong the service life of the equipment, and ensure the stable operation of the system in various marine environments.

[0052] The rudder reduction box 5 is installed on the main reduction box 3, including a rudder 5-1, a worm 5-2, a worm gear 5-3, and a center shaft 5-4. Its main function is to accurately control the rotation angle of the paddle 1-1. The rudder 5-1 on the rudder reduction box 5 can adjust the angle of the paddle 1-1, helping the ship to be accurately controlled during navigation. It can respond to control instructions, making the ship more sensitive to adjust the heading, improving the controllability. When sailing at high speed or avoiding obstacles, the rudder reduction box 5 can work efficiently with the straight wing rudder paddle.

[0053] The working process of the whole device is completed through the cooperation between the various components to achieve efficient power transmission and ship propulsion force generation. The power input shaft 2 transmits power to the main reduction gearbox 3, and after the reduction process, the power is transmitted to the blade gear 1-4 through the gear, and then the blade shaft 1-2 drives the blade 1-1 to rotate to generate propulsion. The corrosion-resistant design of the sealing element 4-2 and the modular replaceable blade assembly 1 improve the reliability and durability of the system. The steering gear reduction gearbox 5 makes the ship more sensitive to control, ensuring stability and efficiency during navigation.

[0054] The above embodiment is only an explanation of the present application, and is not a limitation of the present application. Those skilled in the art can make modifications to the present embodiment without creative contribution after reading the specification, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A combined straight rudder propeller boat propulsion device, characterized in that, The paddle assembly (1), the power input shaft (2), the main reduction box (3), the center rotating seat (4) and the steering engine reduction box are connected, the center rotating seat (4) is connected with the reduction main shaft (3-1) in the main reduction box (3), the reduction main shaft (3-1) is connected with the power input shaft (2), and the steering engine reduction box (5) is connected with the main reduction box (3).

2. The combined straight rudder propeller boat propulsion device according to claim 1, characterized in that, The paddle assembly (1) comprises a paddle (1-1), a paddle shaft (1-2), a supporting bearing (1-3), a paddle gear (1-4) and a paddle seat (1-5), the paddle (1-1) is connected with the paddle shaft (1-2), the paddle shaft (1-2) is installed on the paddle seat (1-5) through the supporting bearing (1-3), and the paddle shaft (1-2) is connected with the paddle gear (1-4).

3. The combined straight rudder propeller boat propulsion device according to claim 2, characterized in that, The paddle seat (1-5) and the center rotating seat (4) are connected through the connecting bolt (4-1).

4. The combined straight rudder propeller boat propulsion device according to claim 3, characterized in that, The paddle seat (1-5) and the center rotating seat (4) are provided with the sealing element (4-2).

5. The combined straight rudder propeller boat propulsion device according to claim 4, characterized in that, The center rotating seat (4) is provided with the center gear (4-3) and the bridge gear (4-4), and the center gear (4-3) is engaged with the bridge gear (4-4).

6. The combined straight rudder propeller boat propulsion device according to claim 5, characterized in that, The steering engine reduction box (5) comprises a steering engine (5-1), a worm (5-2), a worm wheel (5-3) and a center shaft (5-4), the steering engine (5-1) is connected with the worm (5-2), the worm wheel (5-3) is connected with the center shaft (5-4), and the worm wheel (5-3) is matched with the worm (5-2).

7. The combined straight rudder propeller boat propulsion device according to claim 6, characterized in that, The center gear (4-3) is connected with the center shaft (5-4), and the center gear (4-3) is installed on the reduction main shaft (3-1).

8. The combined straight rudder propeller boat propulsion device according to claim 7, characterized in that, The bridge gear (4-4) is engaged with the paddle gear (1-4).

9. The combined straight rudder propeller boat propulsion device according to claim 8, characterized in that, The transmission ratio between the paddle gear (1-4) and the center gear (4-3) is 2:1.

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