Electrically-driven steering oar

Abstract

The utility model discloses an electric drive full-rotation steering oar which comprises an upper box body, a well box, a steering assembly and a lower box body, the upper box body is arranged above the well box, the lower box body is arranged below the well box in a rotatable mode, an input assembly is arranged on the upper box body, and an output assembly used for driving a propeller to rotate is arranged on the lower box body. The input assembly is in transmission connection with the output assembly; the input assembly comprises a driving motor used for driving the output assembly, the steering assembly comprises a steering motor used for driving the lower box body to rotate, the steering motor can conduct braking through an electric control braking device of the steering motor, and the driving motor and the steering motor are both horizontal motors. The structure adopts the horizontal main power motor, so that the height of the steering oar can be reduced, and the space of a steering oar cabin is saved; due to the fact that the motor has the electric control braking function, the steering motor can respond in time, steering braking is safe and reliable, and the full-rotation steering oar can achieve no rudder shifting phenomenon in the advancing process.

Description

Technical Field

[0001] This utility model relates to the field of ship propulsion, and in particular to an electrically driven azimuth propeller. Background Technology

[0002] An azimuth propeller is a combined propeller with rudder blades, capable of rotating 360 degrees around its longitudinal axis and propelling freely in any direction; it is also known as an omnidirectional propeller. Currently, most azimuth propellers use diesel engines as their primary power source, resulting in high operating and maintenance costs. A smaller number of electrically driven azimuth propellers use an L-shaped structure with a vertical motor as the main power source; however, high-power motors are bulky, placing significant demands on the internal space of the propeller nacelle.

[0003] Rudder steering systems often employ hydraulic control systems driven by hydraulic motors and pumps, which can generate significant impacts during rudder angle braking. Rudder angle locking often relies on the incompressibility of hydraulic oil, frequently leading to rudder runaway at high speeds, negatively impacting the ship's navigation.

[0004] In the existing technology, the two rotating seals that isolate seawater, the lower gearbox output shaft seal and the rudder seal, all adopt a structure that is connected to the inner cavity of the rudder propeller. After long-term operation, seawater will inevitably seep into the rudder propeller, contaminating the rudder propeller lubricating oil and adversely affecting parts such as gears and bearings. In severe cases, it may damage mechanical components. Utility Model Content

[0005] To address the issue of large size and tendency for rudder drift in existing azimuth propellers, the present invention aims to provide an electrically driven azimuth propeller that requires less space in the propeller housing and effectively prevents rudder drift.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an electrically driven azimuth propeller, comprising an upper housing, a well housing, a rudder assembly, and a lower housing. The upper housing is disposed above the well housing, and the lower housing is rotatably disposed below the well housing. An input assembly is disposed on the upper housing, and an output assembly for driving the propeller to rotate is disposed on the lower housing. The input assembly and the output assembly are connected by a transmission. The input assembly includes a drive motor for driving the output assembly, and the rudder assembly includes a rudder motor for driving the lower housing to rotate. The rudder motor can be braked by its own electric control braking device. Both the drive motor and the rudder motor are horizontal motors.

[0007] Preferably, the propeller is mounted on the output assembly, and the drive motor and propeller are located on opposite sides of the well box, so that the azimuth propeller is in a Z-shape.

[0008] Preferably, the drive motor is connected to the short shaft via a coupling, the short shaft is connected to the input component, and a brake is installed on the well box, which acts on the short shaft to apply braking.

[0009] As a preferred option, the steering motor is a variable frequency motor.

[0010] Preferably, the steering assembly includes a slewing bearing, a steering cylinder, and a steering gear. The slewing bearing and the steering gear are both rotatably mounted on the well housing. The slewing bearing and the steering gear mesh with each other. The steering bearing is fixedly connected to the steering cylinder via a cone 55. The bottom of the steering cylinder is rotatably engaged with the well housing. The bottom of the steering cylinder extends out of the well housing and is fixedly connected to the lower housing. The steering motor is driven by the steering gear.

[0011] Preferably, a first seal is provided between the well box and the rudder cylinder.

[0012] Preferably, the rudder cylinder and the lower housing are connected by double-ended studs, and the first seal is fastened to the bottom of the well box by a split chuck.

[0013] Preferably, the input assembly includes an upper input shaft, an upper output shaft, and a vertical shaft. The upper output shaft and the upper input shaft are rotatably mounted on the upper housing and mesh with the upper input shaft for transmission. The vertical shaft is rotatably disposed inside the steering cylinder, and the top of the vertical shaft is splinedly connected to the upper output shaft. The drive motor is connected to the upper input shaft for transmission. The output assembly includes a lower input shaft and a lower output shaft. The lower input shaft and the lower output shaft are rotatably mounted on the lower housing and mesh with each other for transmission. A propeller is mounted on one end of the lower output shaft, and the end of the lower output shaft with the propeller extended out of the lower housing. The bottom of the vertical shaft is splinedly connected to the lower input shaft.

[0014] Preferably, a third seal is provided between the lower output shaft and the lower housing.

[0015] Preferably, a first pinion is mounted on the input shaft, and a first large gear is mounted on the upper input shaft, with the first pinion and the first large gear meshing for transmission; a second pinion is mounted on the lower input shaft, and a second large gear is mounted on the lower output shaft, with the second pinion and the second large gear meshing for transmission.

[0016] The beneficial effects of the technical solution of this utility model are as follows: The above solution uses an electric motor as both the main power source and the rudder power source, thus making the operation of the azimuth propeller safe, environmentally friendly, and pollution-free; and by using a horizontal main power motor, the height of the rudder propeller can be reduced, thereby saving space in the rudder propeller compartment; and since the motor has the function of electric control braking, the rudder motor can respond in a timely manner, the rudder braking is safe and reliable, and the azimuth propeller can achieve no rudder run-off during the movement. Attached Figure Description

[0017] Figure 1A schematic diagram of an electrically driven azimuth propeller.

[0018] Figure 2 A schematic diagram of the electrically driven azimuth propeller after removing the gravity fuel tank and drive motor.

[0019] Attached reference numerals: 11. Well box; 12. Well box large flange;

[0020] 21. Upper housing; 22. Upper input shaft; 23. Upper output shaft; 24. Vertical shaft;

[0021] 31. Lower housing; 32. Lower input shaft; 33. Second pinion; 34. Lower output shaft; 35. Second large gear; 36. Third seal; 37. Propeller;

[0022] 41. Drive motor; 42. Coupling; 43. Short shaft; 44. Brake;

[0023] 51. Steering motor; 52. Reducer; 53. Steering gear; 54. Slewing bearing; 55. Cone; 56. Steering cylinder; 57. First seal;

[0024] 6. Gravity fuel tank. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] Example 1

[0031] like Figure 1 and Figure 2 The electric-driven azimuth propeller shown includes an upper housing 21, a well housing 11, a rudder assembly, and a lower housing 31. The upper housing 21 is located above the well housing 11, and the lower housing 31 is rotatably located below the well housing 11. An input assembly is located on the upper housing 21, and an output assembly for driving the propeller to rotate is located on the lower housing 31. The input assembly and the output assembly are connected by a drive.

[0032] The input component includes a drive motor 41 for driving the output component, and the steering component includes a steering motor 51 for driving the lower housing 31 to rotate. The steering motor 51 can be braked by its own electric control braking device. Both the drive motor 41 and the steering motor 51 are horizontal motors.

[0033] With this configuration, the above scheme uses an electric motor as both the main power source and the rudder power source, making the operation of the azimuth propeller safe, environmentally friendly, and pollution-free. Furthermore, the use of a horizontal main power motor reduces the height of the rudder propeller, thus saving space in the propeller nacelle. Moreover, since the motor has an electric braking function, the rudder motor can respond promptly, and the rudder braking is safe and reliable, ensuring that the azimuth propeller does not run away during travel.

[0034] In this embodiment, the steering assembly includes a slewing bearing 54, a steering cylinder 56, and a steering gear 53. The slewing bearing 54 and the steering gear 53 are both rotatably mounted on the well housing 11. The slewing bearing 54 and the steering gear 53 mesh with each other. The steering bearing 54 is fixedly connected to the steering cylinder 56 through a cone 55. The bottom of the steering cylinder 56 is rotatably engaged with the well housing 11. The bottom of the steering cylinder 56 extends out of the well housing 11 and is fixedly connected to the lower housing 31. The drive motor 41 is connected to the drive gear for transmission.

[0035] In a further preferred embodiment, the steering assembly also includes a reducer 52, which is fixed on the well box 11. The steering motor 51 is mounted on the reducer 52 and is rotatably connected to the steering gear 53 through the reducer 52.

[0036] In a further preferred embodiment, a first seal 57 is provided between the well box 11 and the rudder cylinder 56.

[0037] Furthermore, the steering motor 51 and the reducer 52 are at right angles, which can reduce the installation height of the steering motor 51 and reduce the installation space.

[0038] Further, the steering motor 51 is selected as a variable frequency motor, and the steering motor 51 is equipped with an electric control braking device.

[0039] In this embodiment, the well box 11 is provided with an upward-facing cavity, and a well box large flange 12 is fixed on the top of the well box 11. The upper housing 21 and the reducer 52 are both fixed on the top of the well box large flange 12, and the slewing bearing is rotatably installed on the bottom of the well box large flange 12.

[0040] In this embodiment, the input component includes an upper input shaft 22, an upper output shaft 23, and a vertical shaft 24. The upper output shaft 23 and the upper output shaft 24 are rotatably mounted on the upper housing 21. The upper output shaft 23 meshes with the upper input shaft 22 for transmission. The vertical shaft 24 is rotatably disposed inside the rudder cylinder 56. The top of the vertical shaft 24 is splinedly connected to the upper output shaft 23. The drive motor 41 is drively connected to the upper input shaft 22. The output component includes a lower input shaft 32 and a lower output shaft 34. The lower input shaft 32 and the lower output shaft 34 are rotatably mounted on the lower housing 31. The lower input shaft 32 and the lower output shaft 34 mesh for transmission. A propeller 37 is mounted on one end of the lower output shaft 34, and the end of the lower output shaft 34 with the propeller 37 extends out from inside the lower housing 31. The bottom of the vertical shaft 24 is splinedly connected to the lower input shaft 32.

[0041] In a further preferred embodiment, the drive motor 41 and the propeller 37 are respectively located on both sides of the well box 11, so that the azimuth propeller is in a Z-shape, thereby reducing the height of the propeller and saving space in the propeller compartment.

[0042] In a further preferred embodiment, a second seal is provided between the vertical shaft 24 and the rudder cylinder 56, and a third seal 36 is provided between the lower output shaft 34 and the lower housing 31.

[0043] A further preferred embodiment has a first pinion gear mounted on the upper input shaft 22, and a first large gear mounted on the upper input shaft 22, with the first pinion gear and the first large gear meshing for transmission; a second pinion gear 33 is mounted on the lower input shaft 32, and a second large gear 35 is mounted on the lower output shaft 34, with the second pinion gear 33 and the second large gear 35 meshing for transmission. This configuration creates a speed reduction structure in the transmission path of the azimuth propeller, improving the stability of the propeller output.

[0044] In a further preferred embodiment, the upper input shaft 22 and the lower output shaft 34 are arranged in parallel.

[0045] In this embodiment, the propeller also includes a gravity oil tank 6, which is connected to the first seal 57 and the third seal 36 via a lubricating oil pipe. By periodically monitoring the composition of the lubricating oil in the gravity oil tank 6, the condition of the seals is determined, and it is determined whether maintenance and replacement are required, thereby maximizing the protection of the lubricating oil in the propeller from contamination.

[0046] In this embodiment, both the first seal 57 and the third seal 36 are rotary seals.

[0047] In this embodiment, the drive motor 41 is connected to the short shaft 43 via the coupling 42, and the short shaft 43 is connected to the upper input shaft 22 via the flange. A brake 44 is installed on the top of the well box large flange 12, and the brake 44 acts on the short shaft 43 to perform braking.

[0048] In this embodiment, the rudder cylinder 56 and the lower housing 31 are connected by double-ended studs, and the first seal 57 is fastened to the bottom of the well box 11 by a split chuck. This azimuth propeller has a detachable structure, facilitating the maintenance and repair of the seals.

[0049] When the aforementioned azimuth propeller drives the propeller 37 to rotate: the drive motor 41 starts and drives the short shaft 43 to rotate, the short shaft 43 drives the upper input shaft 22 to rotate, the upper input shaft 22 drives the upper output shaft 23 to rotate through gears, the upper output shaft 23 drives the lower input shaft 32 to rotate through splines, the lower input shaft 32 starts the lower output shaft 34 to rotate through gears, and the lower output shaft 34 drives the propeller 37 to rotate, thereby providing thrust to the propeller.

[0050] The azimuth propeller is braked through the input end of the brake, and the large and small gears can further improve the braking effect of the propeller.

[0051] When the azimuth propeller turns, the rudder motor drives the rudder gear to rotate through the reducer. The rudder gear drives the slewing bearing to rotate. The slewing bearing drives the rudder cylinder to rotate through the cone. The rotating cylinder drives the lower housing to rotate. The lower housing drives the lower output shaft to rotate, thereby adjusting the angle of the propeller on the lower output shaft.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. An electrically driven azimuth propeller, characterized in that: It includes an upper housing (21), a well housing (11), a steering assembly, and a lower housing (31). The upper housing (21) is located above the well housing (11), and the lower housing (31) is rotatably located below the well housing (11). The input assembly is located on the upper housing (21), and the output assembly for driving the propeller to rotate is located on the lower housing (31). The input assembly and the output assembly are connected by a drive. The input component includes a drive motor (41) for driving the output component, and the steering component includes a steering motor (51) for driving the lower housing (31) to rotate. The steering motor (51) can be braked by its own electric control braking device. The drive motor (41) is a horizontal motor.

2. The electrically driven azimuth propeller according to claim 1, characterized in that: The propeller (37) is mounted on the output assembly, and the drive motor (41) and the propeller (37) are located on both sides of the well box (11), so that the azimuth propeller is in a Z-shape.

3. The electrically driven azimuth propeller according to claim 1, characterized in that: The drive motor (41) is connected to the short shaft (43) via a coupling (42), and the short shaft (43) is connected to the input assembly. A brake (44) is installed on the well box (11), and the brake (44) acts on the short shaft (43) to apply braking.

4. The electrically driven azimuth propeller according to claim 1, characterized in that: The steering motor (51) is a variable frequency motor and a horizontal motor.

5. The electrically driven azimuth propeller according to claim 1, characterized in that: The steering assembly includes a slewing bearing (54), a steering cylinder (56), and a steering gear (53). The slewing bearing (54) and the steering gear (53) are rotatably mounted on the well box (11). The slewing bearing (54) and the steering gear (53) mesh. The steering bearing (54) is fixedly connected to the steering cylinder (56) through a cone (55). The bottom of the steering cylinder (56) is rotatably engaged with the well box (11). The bottom of the steering cylinder (56) extends out of the well box (11) and is fixedly connected to the lower housing (31). The steering motor (51) is driven by the steering gear (53).

6. The electrically driven azimuth propeller according to claim 5, characterized in that: A first seal (57) is provided between the well box (11) and the rudder cylinder (56).

7. The electrically driven azimuth propeller according to claim 6, characterized in that: The rudder cylinder (56) and the lower housing (31) are connected by double-ended studs, and the first seal (57) is fastened to the bottom of the well box (11) by a split chuck.

8. The electrically driven azimuth propeller according to claim 5, characterized in that: The input assembly includes an upper input shaft (22), an upper output shaft (23), and a vertical shaft (24). Both the upper output shaft (23) and the upper output shaft (24) are rotatably mounted on the upper housing (21). The upper output shaft (23) meshes with the upper input shaft (22) for transmission. The vertical shaft (24) is rotatably mounted inside the steering cylinder (56). The top of the vertical shaft (24) is splinedly connected to the upper output shaft (23). The drive motor (41) is connected to the upper input shaft (22) for transmission. The output assembly... The component includes a lower input shaft (32) and a lower output shaft (34), both of which are rotatably mounted on the lower housing (31). The lower input shaft (32) and the lower output shaft (34) are meshed and driven. A propeller (37) is mounted on one end of the lower output shaft (34), and the end of the lower output shaft (34) with the propeller (37) mounted on it extends out from the lower housing (31). The bottom of the vertical shaft (24) is splinedly connected to the lower input shaft (32).

9. The electrically driven azimuth propeller according to claim 8, characterized in that: A third seal (36) is provided between the lower output shaft (34) and the lower housing (31).

10. An electrically driven azimuth propeller according to claim 8, characterized in that: The input shaft (22) is equipped with a first small gear and the upper input shaft (22) is equipped with a first large gear. The first small gear and the first large gear mesh and drive each other. The lower input shaft (32) is equipped with a second small gear (33) and the lower output shaft (34) is equipped with a second large gear (35). The second small gear (33) and the second large gear (35) mesh and drive each other.

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