Double-shaft adjusting propeller front energy-saving device

Abstract

The invention relates to a double-shaft adjusting propeller front energy-saving device, which comprises a stator main body, the stator main body is connected with a plurality of blades, the plurality of blades are uniformly distributed on the periphery of the stator main body in the circumferential direction, the stator main body is internally provided with a plurality of first driving assemblies, the first driving assemblies are in one-to-one correspondence with the blades, and the first driving assemblies are connected with the stator main body; the blade is connected with the first driving assembly through a hinge shaft, the first end of the hinge shaft is connected with the blade, the second end of the hinge shaft is connected with the transmission assembly, and the first driving assembly drives the blade to rotate around the axis of the hinge shaft through the hinge shaft. And a second driving assembly is also arranged in the stator main body, and the second driving assembly is used for driving the stator main body to rotate around the axis of the stator main body. According to the double-shaft adjusting propeller front energy-saving device, water flow guiding better meets the energy-saving requirement of the working condition.

Description

Technical Field

[0001] This invention relates to the field of marine propeller technology, and in particular to a dual-shaft adjustable propeller front energy-saving device. Background Technology

[0002] In a ship's propulsion system, the propeller is the key device that converts the main engine's power into propulsion.

[0003] However, traditional propellers suffer from energy loss under different operating conditions, leading to increased fuel consumption, higher operating costs, and adverse environmental impacts. As a result, various energy-saving devices have been developed. However, existing energy-saving devices lack dynamic adjustment capabilities for different operating conditions, resulting in limited energy-saving effects. Therefore, there is an urgent need for a dual-shaft adjustable propeller front energy-saving device. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the lack of dynamic adjustment capability in the existing energy-saving devices, and to provide a dual-axis adjustable propeller front energy-saving device.

[0005] To solve the above-mentioned technical problems, the present invention provides a dual-axis adjustable propeller front energy-saving device, comprising: A stator body, which is mounted on the front end of the propeller and coaxially arranged with the propeller, and the stator body is connected to: Multiple blades are evenly distributed circumferentially around the outer periphery of the stator body, and the stator body contains: Multiple first drive components, each corresponding to one of the blades, are connected to the blades via: A hinge shaft is connected, with its first end connected to the blade and its second end connected to the transmission assembly. The first drive assembly drives the blade to rotate around the axis of the hinge shaft via the hinge shaft. The stator body also includes: A second drive assembly is used to drive the stator body to rotate about its axis.

[0006] As a further improvement of the present invention, the first driving component includes: A first drive motor, the output terminal of which is connected to: A first bevel gear, the first drive motor is used to drive the first bevel gear to rotate, the first bevel gear meshes with: The second bevel gear is driven by the first drive motor to rotate. The second bevel gear is sleeved on the hinge shaft and coaxially arranged with: A bearing housing, which is sleeved on the hinge shaft.

[0007] As a further improvement of the present invention, the bearing housing is provided by: The connecting rod is connected to the inner wall of the stator body.

[0008] As a further improvement of the present invention, the second driving component includes: The second drive motor, the output terminal of the second drive motor is connected to: The central gear is connected to the inner wall of the stator body as follows: The internal gear ring, the central gear and the internal gear ring are connected by: Multiple planetary gears mesh, and multiple planetary gears pass between each other: The planetary carrier is connected and is coaxially arranged with the stator body. When the second drive motor drives the central gear to rotate, the central gear drives the internal gear ring to rotate through multiple planetary gears.

[0009] As a further improvement of the invention, the planetary gears are provided in three parts.

[0010] As a further improvement of the present invention, the internal gear ring is achieved by: The buckle is detachably connected to the stator body.

[0011] As a further improvement to the present invention, it also includes: Multiple angle sensors are provided, each corresponding to one of the multiple blades. The angle sensors are used to detect the rotation angle of the blades in real time.

[0012] As a further improvement to the present invention, it also includes: The data processing module includes: A multi-channel signal acquisition unit and a data filter are provided. The multi-channel signal acquisition unit is used to simultaneously receive signals from the angle sensor and ship operating parameters, and the data filter is used to remove noise interference through a low-pass filtering algorithm.

[0013] As a further improvement to the present invention, it also includes: The operating condition judgment module is used to generate fuzzy rules based on ship operating parameters and convert the fuzzy rules into corresponding operating condition categories through a corresponding state mapping table.

[0014] As a further improvement to the present invention, it also includes: The system includes an angle calculation module and an instruction sending module. The angle calculation module searches for the optimal angle combination through iterative calculation and predicts the energy-saving effect under different angle combinations based on historical data. The instruction sending module is used to convert the calculation result of the angle calculation module into a PWM signal, and then amplify the PWM signal and send it to the first drive component and the second drive component.

[0015] As a further improvement of the present invention, the angle calculation module calculates the angle of the blade according to the following formula. : in: Indicates the first The angle of each blade and Let i represent the velocity and position of particle i at the t-th iteration, respectively. Let represent the optimal position of particle i at the t-th iteration. This represents the globally optimal position of the entire population at the t-th iteration. and It is the learning factor, with a value of 2. and It is a random number in the range [0,1], used to increase the randomness of the search.

[0016] The technical solution of the present invention has the following advantages compared with the prior art: The present invention discloses a dual-axis adjustable propeller front energy-saving device. The first drive assembly drives the blades to rotate around the axis of the hinge shaft. At the same time, the second drive assembly drives the stator body to rotate around its axis, thereby driving the blades to rotate around its axis, thus forming dual-axis adjustment of the blades. Under different operating conditions, the attitude of the energy-saving device in front of the propeller is adjusted so that its guidance of water flow is more in line with the energy-saving requirements of the current operating conditions. Attached Figure Description

[0017] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of the propeller front energy-saving device with dual-axis adjustment according to the present invention; Figure 2 This is a right view of the dual-axis adjustable propeller front energy-saving device of the present invention; Figure 3 yes Figure 2 Sectional view along the middle AA direction; Figure 4 This is a schematic diagram of the connection structure between the stator body, blades and second drive assembly of the dual-axis adjustable propeller front energy-saving device of the present invention.

[0018] Explanation of reference numerals in the accompanying drawings: 1. Stator body; 2. Blade; 3. Hinge shaft; 4. First drive motor; 5. First bevel gear; 6. Second bevel gear; 7. Bearing housing; 8. Connecting rod; 9. Second drive motor; 10. Central gear; 11. Internal gear ring; 12. Planetary gear; 13. Planetary carrier. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0020] It should be noted that when a component is referred to as being "set on" or "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "fixed to" another component, or "fixedly connected" to another component, the fixing method can be detachable or non-detachable. When a component is considered to be "connected" or "rotatably connected" to another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," "upper," "lower," and similar expressions used are for illustrative purposes only and do not represent the only possible implementation.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] In this invention, terms such as "first," "second," and "third" are used not to represent specific quantities or orders, but merely to distinguish names.

[0023] In some embodiments, refer to Figures 1-4 As shown, a dual-axis adjustable propeller front energy-saving device of the present invention includes: Stator body 1, which is mounted on the front end of the propeller and coaxially arranged with the propeller, and connected to: Multiple blades 2 are evenly distributed circumferentially around the outer periphery of the stator body 1, and the stator body 1 is provided with: Multiple first drive components, each corresponding one-to-one with the blade 2, are connected to the blade 2 via: A hinge shaft 3 is connected, with its first end connected to the blade 2 and its second end connected to the transmission assembly. The first drive assembly drives the blade 2 to rotate around the axis of the hinge shaft 3 via the hinge shaft 3. The stator body 1 also includes: The second drive assembly is used to drive the stator body 1 to rotate about its axis.

[0024] The first drive assembly drives the corresponding blades 2 to rotate around the hinge shaft 3, thereby forming a first rotation in the direction of the hinge shaft 3 axis. Then, the second drive assembly drives the stator body 1 to rotate around its axis, causing multiple blades 2 to rotate together around the axis of the stator body 1, thereby forming a second rotation in the direction of the stator body 1 axis. This forms a dual-axis adjustment. Under different working conditions, the dual-axis adjustment can make the inflow angle in front of the propeller more in line with the current working conditions, improving the energy efficiency of the energy-saving device and reducing the working energy consumption of the propeller.

[0025] In one embodiment, reference is made to Figure 3 As shown, the first driving component includes: The first drive motor 4, the output terminal of the first drive motor 4 is connected to: The first bevel gear 5 is driven by the first drive motor 4 to rotate. The first bevel gear 5 meshes with: The second bevel gear 6 is driven by the first drive motor 4 through the first bevel gear 5. The second bevel gear 6 is sleeved on the hinge shaft 3, and the second bevel gear 6 is coaxially arranged with: Bearing seat 7, which is sleeved on the hinge shaft 3.

[0026] The first drive motor 4 drives the second bevel gear 6 to rotate via the first bevel gear 5, thereby adjusting the angle of the blade 2 on the axis of the hinge shaft 3 via the hinge shaft 3. The bearing seat 7 can improve the stability of the hinge shaft 3 when rotating.

[0027] In one embodiment, reference is made to Figure 3 As shown, the bearing housing 7 is constructed via: The connecting rod 8 is connected to the inner wall of the stator body 1.

[0028] The bearing housing 7 is fixed to the inside of the stator body 1 by the connecting rod 8, thereby improving the stability of the bearing housing 7.

[0029] In one embodiment, reference is made to Figure 4As shown, the second driving component includes: The second drive motor 9, the output terminal of the second drive motor 9 is connected to: The center gear 10 is connected to the inner wall of the stator body 1. Internal gear ring 11, the central gear 10 and the internal gear ring 11 are connected by: Multiple planetary gears 12 mesh, and multiple planetary gears 12 pass between each other: The planetary carrier 13 is connected and is coaxially arranged with the stator body 1. When the second drive motor 9 drives the central gear 10 to rotate, the central gear 10 drives the internal gear ring 11 to rotate through multiple planetary gears 12.

[0030] The second drive motor 9 drives the center gear 10 to rotate. Since the planetary carrier 13 is fixed, when the center gear 10 rotates, it drives the planetary gear 12 to rotate around its own axis, thereby causing the inner gear ring 11 to rotate, which in turn drives the stator body 1 to rotate. This, in turn, drives the blades 2 to rotate around the axis of the stator body 1, thereby adjusting the angle of the blades 2 in the axial direction of the stator body 1.

[0031] In one embodiment, reference is made to Figure 4 As shown, the planetary gear 12 has three parts.

[0032] The three planetary gears 12 can be evenly distributed at 120-degree intervals on the circumference. This symmetrical distribution allows the radial forces acting on the sun gear and the ring gear to perfectly cancel each other out. This balance greatly reduces the unbalanced radial loads acting on the bearings of the central gear 10 shaft and the planet carrier 13, thereby reducing bearing load, friction loss, vibration, and noise, and improving the system's stability, efficiency, and lifespan. Although two planetary gears 12 can also achieve a 180-degree symmetrical distribution and theoretically balance the radial forces, small dimensional errors or deformations during actual assembly can easily disrupt the stability of this two-point balance, leading to uneven load distribution and potentially causing one planetary gear 12 to overload and be damaged. The symmetrical structure formed by three points has a higher tolerance for manufacturing errors and makes it easier to achieve load equalization.

[0033] In one embodiment, the internal gear ring 11 is constructed by: The buckle (not shown in the figure) is detachably connected to the stator body 1.

[0034] The internal gear ring 11 is detachably connected to the stator body 1 by a snap-fit, which facilitates assembly and subsequent maintenance and replacement of the internal gear ring 11.

[0035] In one embodiment, it further includes: Multiple angle sensors (not shown in the figure) are used to detect the rotation angle of the blades 2 in real time.

[0036] The rotation angle of blade 2 is detected in real time by multiple angle sensors, which makes it easy to determine whether blade 2 is adjusted in place.

[0037] In one embodiment, it further includes: A data processing module (not shown in the figure) includes: A multi-channel signal acquisition unit and a data filter are provided. The multi-channel signal acquisition unit is used to simultaneously receive signals from the angle sensor and ship operating parameters, and the data filter is used to remove noise interference through a low-pass filtering algorithm.

[0038] The blade angle signal is acquired by a multi-channel signal acquisition device and processed by a data filter. Noise interference is removed by a low-pass filtering algorithm.

[0039] In one embodiment, it further includes: The operating condition judgment module (not shown in the figure) is used to generate fuzzy rules based on the ship's operating parameters and convert the fuzzy rules into corresponding operating condition categories through the corresponding state mapping table.

[0040] The ship's operating parameters collected by the multi-channel signal acquisition device are used to generate fuzzy rules. The fuzzy rules are then converted into corresponding operating condition categories according to the corresponding state mapping table, thereby determining the current operating environment and facilitating the selection of the corresponding blade angle to achieve the best energy-saving effect.

[0041] In one embodiment, it further includes: An angle calculation module (not shown in the figure) and an instruction sending module (not shown in the figure) are provided. The angle calculation module finds the optimal angle combination through iterative calculation and predicts the energy-saving effect under different angle combinations based on historical data. The instruction sending module is used to convert the calculation result of the angle calculation module into a PWM signal, and amplify the PWM signal before sending it to the first drive component and the second drive component.

[0042] In one embodiment, the angle calculation module calculates the angle of the blade according to the following formula. : in: Indicates the first The angle of each blade and Let i represent the velocity and position of particle i at the t-th iteration, respectively. Let represent the optimal position of particle i at the t-th iteration. This represents the globally optimal position of the entire population at the t-th iteration. and It is the learning factor, with a value of 2. and It is a random number in the range [0,1], used to increase the randomness of the search.

[0043] When calculating the blade angle, first randomly select... and The values ​​are used to generate the positions and velocities of N particles. Each particle's position represents a combination of blade angles. The initial position of each particle is then taken as its individual optimal position, and a global optimal position is selected from all initial positions. The fitness function evaluates the particles based on the problem's objective. If the fitness of the current particle's position is better than the fitness of its individual optimal position, the individual optimal position is updated. If the fitness of the current particle's individual optimal position is better than the fitness of the global optimal position, the global optimal position is updated. Finally, the velocity and position of each particle are updated according to the above formula. The algorithm terminates when either of the following conditions is met: the preset maximum number of iterations is reached; or the fitness value of the global optimal position does not change significantly in consecutive iterations.

[0044] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A dual-shaft adjustable propeller front energy-saving device, characterized in that: include: A stator body, which is mounted on the front end of the propeller and coaxially arranged with the propeller, and the stator body is connected to: Multiple blades are evenly distributed circumferentially around the outer periphery of the stator body, and the stator body contains: Multiple first drive components, each corresponding to one of the blades, are connected to the blades via: A hinge shaft is connected, with its first end connected to the blade and its second end connected to the transmission assembly. The first drive assembly drives the blade to rotate around the axis of the hinge shaft via the hinge shaft. The stator body also includes: A second drive assembly is used to drive the stator body to rotate about its axis.

2. The dual-shaft adjustable propeller front energy-saving device according to claim 1, characterized in that: The first driving component includes: A first drive motor, the output terminal of which is connected to: A first bevel gear, the first drive motor is used to drive the first bevel gear to rotate, the first bevel gear meshes with: The second bevel gear is driven by the first drive motor to rotate. The second bevel gear is sleeved on the hinge shaft and coaxially arranged with: A bearing housing, which is sleeved on the hinge shaft.

3. The propeller front energy-saving device with dual-shaft adjustment according to claim 2, characterized in that: The bearing housing passes through: The connecting rod is connected to the inner wall of the stator body.

4. The propeller front energy-saving device with dual-shaft adjustment according to claim 1, characterized in that: The second driving component includes: The second drive motor, the output terminal of the second drive motor is connected to: The central gear is connected to the inner wall of the stator body as follows: The internal gear ring, the central gear and the internal gear ring are connected by: Multiple planetary gears mesh, and multiple planetary gears pass between each other: The planetary carrier is connected and is coaxially arranged with the stator body. When the second drive motor drives the central gear to rotate, the central gear drives the internal gear ring to rotate through multiple planetary gears.

5. The dual-shaft adjustable propeller front energy-saving device according to claim 4, characterized in that: The planetary gears are of three types.

6. The dual-shaft adjustable propeller front energy-saving device according to claim 1, characterized in that: Also includes: Multiple angle sensors are provided, each corresponding to one of the multiple blades. The angle sensors are used to detect the rotation angle of the blades in real time.

7. The dual-shaft adjustable propeller front energy-saving device according to claim 6, characterized in that: Also includes: The data processing module includes: A multi-channel signal acquisition unit and a data filter are provided. The multi-channel signal acquisition unit is used to simultaneously receive signals from the angle sensor and ship operating parameters, and the data filter is used to remove noise interference through a low-pass filtering algorithm.

8. The dual-shaft adjustable propeller front energy-saving device according to claim 7, characterized in that: Also includes: The operating condition judgment module is used to generate fuzzy rules based on ship operating parameters and convert the fuzzy rules into corresponding operating condition categories through a corresponding state mapping table.

9. The dual-shaft adjustable propeller front energy-saving device according to claim 8, characterized in that: Also includes: The system includes an angle calculation module and an instruction sending module. The angle calculation module searches for the optimal angle combination through iterative calculation and predicts the energy-saving effect under different angle combinations based on historical data. The instruction sending module is used to convert the calculation result of the angle calculation module into a PWM signal, and then amplify the PWM signal and send it to the first drive component and the second drive component.

10. The dual-shaft adjustable propeller front energy-saving device according to claim 9, characterized in that: The angle calculation module calculates the angle of the blade according to the following formula. : in: Indicates the first The angle of each leaf and They represent particles respectively i In the t Velocity and position at the next iteration Represents particles i In the t The optimal position of the individual in the next iteration. Indicates the entire group at the 1st t The global optimal position at the next iteration. and It is the learning factor, with a value of 2. and It is a random number in the range [0,1], used to increase the randomness of the search.

Images