Paddle device of high-ice-grade pod propeller

Abstract

The invention relates to a high-ice-grade pod propeller paddle device, and belongs to the technical field of pod propeller paddle equipment.The high-ice-grade pod propeller paddle device comprises a rotating base and a rotating cylinder, a driving motor is fixedly installed in the rotating base, the output end of the driving motor is fixedly connected with the rotating cylinder, and a plurality of paddles are movably connected in the rotating cylinder; according to the device, a linkage block is driven by an electric push rod to transversely move in the rotating cylinder, then a telescopic plate and a telescopic box are rotated through movement of the linkage block, the telescopic plate and the telescopic box are driven to rotate, the rotating cylinder is driven to rotate, the rotating cylinder is driven to rotate, the rotating cylinder is driven to rotate, and the rotating cylinder is driven to rotate. Therefore, the telescopic box can drive the paddle to adjust the included angle between the paddle and the axis of the rotating cylinder, on one hand, the propelling efficiency can be optimized, the propeller adapts to changes of various sailing speeds, and on the other hand, excessive expansion of a low-pressure area can be avoided and cavitation bubbles can be reduced by adjusting the local attack angle of the paddle.

Description

Technical Field

[0001] The invention belongs to the technical field of podded propeller blades, and particularly relates to a high ice-class podded propeller blade device. Background Art

[0002] A podded propeller, also known as a POD propeller, is a new type of ship propulsion device that places the propulsion motor outside the ship's cabin and is directly connected to the propeller. It has the advantages of high efficiency and energy saving, good maneuverability, etc. The blade device is a device used to provide power for the podded propeller.

[0003] In the polar ice region environment, due to a large number of influencing factors such as surface ice, when a ship sails, it is necessary to continuously and dynamically adjust the propulsion speed to cope with various complex situations. The blades in the prior art are generally of a fixed structure and cannot adjust the angle between the blade and the central section of the blade, that is, the angle of attack cannot be adjusted. It cannot meet the navigation needs in the ice region. Although some blades can be folded and retracted, for example, a blade folding device for an underwater propeller disclosed in the publication number CN116080873A. Although this technical solution can rely on the drive of the drive motor to achieve the rapid folding and unfolding of the blades, the purpose of folding or unfolding the two blades in this technical solution is to reduce the gliding efficiency and avoid the risk of being entangled by waterweeds, fishing nets or sundries during gliding. At the same time, the blades in this technical solution can only achieve two fixed states of unfolding and retracting, cannot adjust the angle of attack of the blades, and cannot meet the propulsion needs in different states in the polar ice region. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to solve the above problems in the prior art and provide a high ice-class podded propeller blade device that can adjust the angle of attack of the blade to meet the complex navigation conditions in the polar ice region.

[0005] The present invention adopts the following technical solutions to achieve:

[0006] A high ice-class podded propeller blade device includes a rotating base and a rotating cylinder. A drive motor is fixedly installed inside the rotating base, and the output end of the drive motor is fixedly connected to the rotating cylinder. A plurality of blades are movably connected inside the rotating cylinder, and an adjustment assembly is arranged inside the rotating cylinder. The adjustment assembly is used to adjust the angle between the blade and the axis of the rotating cylinder.

[0007] To optimize the above technical solution, the specific measures taken also include:

[0008] Further, to facilitate the connection between the connection disk and the perforated fixing plate, a connection disk is fixedly installed at the output end of the drive motor, a perforated fixing plate is provided at one end of the rotating cylinder, and the connection disk and the perforated fixing plate are fixedly connected by high-strength anti-rust bolts.

[0009] Further, to limit the T-shaped mounting bracket, a plurality of T-shaped sliding grooves are formed on the outer circumferential surface of the rotating cylinder, a T-shaped mounting bracket is slidably clamped in the T-shaped sliding groove, and one end of the T-shaped mounting bracket is rotatably connected to one side surface of the rotating base.

[0010] Further, to fix the other end of the T-shaped mounting bracket, a rotating groove is formed on one side of the rotating base, an annular clamping block is arranged in the rotating groove, an annular plate is rotatably clamped on the annular clamping block, and the T-shaped mounting bracket is fixedly connected to the annular plate.

[0011] Further, to provide driving force for the adjusting assembly, the adjusting assembly includes an electric push rod, and the electric push rod is fixedly installed in the rotating cylinder.

[0012] Further, to enable the telescopic box to drive the paddle to rotate, a linkage block is fixedly installed at the output end of the electric push rod, through holes are evenly formed on the outer circumferential surface of one end of the rotating cylinder, a telescopic box is rotatably installed in the through holes, and one end of the paddle is fixedly connected to the telescopic box.

[0013] Further, to enable the electric push rod to drive the telescopic plate to slide in the telescopic box, a telescopic plate is inserted into the telescopic box, and the telescopic plate is rotatably connected to the linkage block.

[0014] Further, to limit the sliding of the telescopic plate in the telescopic box, limiting grooves are formed on both inner side walls of the telescopic box, limiting blocks are fixedly installed on both outer side walls of the telescopic plate, and the limiting blocks are slidably clamped with the limiting grooves.

[0015] Further, a controller is fixedly installed on one side surface of the rotating base, and the controller is electrically connected to the adjusting assembly.

[0016] Advantages of the present invention:

[0017] This device can drive the linkage block to move horizontally in the rotating cylinder through an electric push rod, and then drive the telescopic plate and the telescopic box to rotate through the movement of the linkage block, so that the telescopic box can drive the paddle to adjust the angle of attack. Dynamically adjusting the angle of attack of the paddle in the ice area environment can, on the one hand, optimize the propulsion efficiency and adapt to changes in various sailing speeds, and on the other hand, avoid excessive expansion of the low-pressure area and reduce cavitation by adjusting the local angle of attack of the paddle. At the same time, the angle range adjustment of the paddle in this solution adopts stepless change, and any angle adjustment setting can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a half-sectional view of the present invention;

[0020] Figure 3 is a front view of the present invention;

[0021] Figure 4 is a schematic diagram of the position of the rotating groove of the present invention;

[0022] Figure 5 is a schematic diagram of the structure of the adjustment component of the present invention;

[0023] Figure 6 is a schematic diagram of the position of the through hole of the present invention;

[0024] Figure 7 is Figure 5 an enlarged view of the structure at A in

[0025] The reference numerals in the drawings are: rotating base 1, rotating cylinder 2, drive motor 3, paddle 4, adjustment component 5, electric push rod 501, linkage block 502, telescopic box 503, telescopic plate 504, limit block 505, controller 6, connecting disk 7, perforated fixing plate 8, high-strength anti-rust bolt 9, T-shaped sliding groove 10, T-shaped mounting bracket 11, rotating groove 12, annular clamping block 13, annular plate 14, through hole 15. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to clarify the technical solution and working principle of the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that many specific details are set forth in the following description in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0027] Please refer to Figures 1 - 7As shown in the figure, a high ice class podded propeller blade device includes a rotating base 1 and a rotating cylinder 2. A driving motor 3 is fixedly installed inside the rotating base 1. The output end of the driving motor 3 is fixedly connected to the rotating cylinder 2. The driving motor 3 is a servo motor and is electrically connected to a controller 6.

[0028] A plurality of blades 4 are movably connected inside the rotating cylinder 2. An adjusting assembly 5 is arranged inside the rotating cylinder 2. The adjusting assembly 5 is used to adjust the angle between the blade 4 and the axis of the rotating cylinder 2. A controller 6 is fixedly installed on one side surface of the rotating base 1. The controller 6 is electrically connected to the adjusting assembly 5. When the podded propeller is not installed yet, the attack angle adjustment range of the blade can be directly adjusted through the controller 6. During the actual operation of the podded propeller, the controller 6 can be directly controlled by the ship's control system, and then the attack angle of the blade can be adjusted.

[0029] As Figure 1 and Figure 2 shown in the figure, a connecting disc 7 is fixedly installed at the output end of the driving motor 3. A perforated fixing plate 8 is arranged at one end of the rotating cylinder 2. The connecting disc 7 and the perforated fixing plate 8 are fixedly connected by high-strength anti-rust bolts 9, so as to fixedly connect the connecting disc 7 and the perforated fixing plate 8 on the rotating cylinder 2 through the high-strength anti-rust bolts 9. At this time, the preliminary connection of the rotating cylinder 2 is completed, and the connecting disc 7 is fixedly connected to the output end of the driving motor 3 through a welding process.

[0030] As Figure 3 shown in the figure, a plurality of T-shaped sliding grooves 10 are formed on the outer circumferential surface of the rotating cylinder 2. A T-shaped mounting bracket 11 is slidably clamped in the T-shaped sliding groove 10. One end of the T-shaped mounting bracket 11 is located on one side surface of the rotating base 1. A rotating groove 12 is formed on one side of the rotating base 1. An annular clamping block 13 is arranged inside the rotating groove 12. An annular plate 14 is rotatably clamped on the annular clamping block 13. The annular plate 14 has a hollow structure inside. The annular plate 14 is clamped on the annular clamping block 13. A bearing is arranged between the annular plate 14 and the annular clamping block 13, so that the annular plate 14 can rotate relative to the annular clamping block 13. The T-shaped mounting bracket 11 is fixedly connected to the annular plate 14. After the rotating cylinder 2 and the driving motor 3 are installed, the staff can pull the T-shaped mounting bracket 11 at this time, so that the T-shaped mounting bracket 11 moves along the T-shaped sliding groove 10 on the surface of the rotating cylinder 2, and then the T-shaped mounting bracket 11 is fixedly connected to the annular plate 14 rotatably installed on the rotating base 1, thereby increasing the connection strength between the rotating cylinder 2 and the rotating base 1, and further improving the stability of the rotating cylinder 2 during rotation.

[0031] As Figure 5 and Figure 7As shown in the figure, the adjusting assembly 5 includes an electric push rod 501. The electric push rod 501 is fixedly installed in the rotating cylinder 2. The output end of the electric push rod 501 is fixedly installed with a linkage block 502. Through holes 15 are evenly formed in the outer circumferential surface of one end of the rotating cylinder 2. A telescopic box 503 is rotatably installed in the through hole 15. The telescopic box 503 is connected to the inner wall of the through hole 15 through a rotating pin. The telescopic box 503 can rotate around the rotating pin. One end of the paddle 4 is fixedly connected to the telescopic box 503. A telescopic plate 504 is inserted into the telescopic box 503. The telescopic plate 504 is rotatably connected to the linkage block 502. Limiting grooves are formed in the inner walls on both sides of the telescopic box 503. Limiting blocks 505 are fixedly installed on the outer walls on both sides of the telescopic plate 504. The limiting blocks 505 are slidably clamped with the limiting grooves. So as to facilitate the controller 6 to control the opening of the electric push rod 501, the electric push rod 501 can drive the linkage block 502 to expand and contract along the axis direction of the rotating cylinder 2. At this time, the movement of the linkage block 502 can make the telescopic plate 504 rotatably connected to the linkage block 502 rotate. At this time, the telescopic plate 504 drives the telescopic box 503 to rotate, and the rotation of the telescopic box 503 can drive the paddle 4 to rotate. And through the start and stop of the electric push rod 501, the included angle between the paddle 4 and the axis of the rotating cylinder 2 can be adjusted, thereby reducing the resistance of the paddle 4 during idling. At the same time, the propulsion efficiency can also be optimized according to the needs of ice area navigation.

[0032] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed invention.

[0033] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of this application. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and retouches made without departing from the principle of this application should be regarded as the protection scope of this application.

Claims

1. A high-ice-class podded propeller blade device, comprising a rotating base and a rotating cylinder, characterized in that: A drive motor is fixedly installed inside the rotating base. The output end of the drive motor is fixedly connected to the rotating cylinder. A plurality of blades are movably connected inside the rotating cylinder. An adjusting assembly is arranged inside the rotating cylinder, and the adjusting assembly is used to adjust the angle between the blade and the axis of the rotating cylinder.

2. The blade device of a high ice class podded propeller according to claim 1, characterized in that: A connecting plate is fixedly installed at the output end of the drive motor. A perforated fixing plate is arranged at one end of the rotating cylinder. The connecting plate and the perforated fixing plate are fixedly connected by high-strength anti-rust bolts.

3. The blade device of a high-ice-class podded propeller according to claim 2, characterized in that: A plurality of T-shaped sliding grooves are formed on the outer circumferential surface of the rotating cylinder. A T-shaped mounting frame is slidably clamped in the T-shaped sliding groove. One end of the T-shaped mounting frame is rotatably connected to one side surface of the rotating base.

4. The blade device of a high ice class podded propeller according to claim 3, characterized in that: A rotating groove is formed on one side of the rotating base. An annular clamping block is arranged inside the rotating groove. An annular plate is rotatably clamped on the annular clamping block. The T-shaped mounting frame is fixedly connected to the annular plate.

5. A high ice-class podded propeller blade device according to claim 4, characterized in that: The adjusting assembly includes an electric push rod, and the electric push rod is fixedly installed inside the rotating cylinder.

6. The blade device of a high ice class podded propeller according to claim 5, characterized in that: The output end of the electric push rod is fixedly installed with a linkage block. Through holes are evenly formed on the outer circumferential surface at one end of the rotating cylinder. A telescopic box is rotatably installed inside the through hole. One end of the blade is fixedly connected to the telescopic box.

7. The blade device of a high ice class podded propeller according to claim 6, characterized in that: A telescopic plate is inserted into the telescopic box. The telescopic plate is rotatably connected to the linkage block.

8. The blade device of a high ice-class podded propeller according to claim 7, characterized in that: Limiting grooves are formed on the inner walls of both sides of the telescopic box. Limiting blocks are fixedly installed on the outer walls of both sides of the telescopic plate. The limiting blocks are slidably clamped with the limiting grooves.

9. The blade device of a high ice class podded propeller according to claim 1, characterized in that: A controller is fixedly installed on one side surface of the rotating base. The controller is electrically connected to the adjusting assembly.

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