A water-jet propeller inlet duct fairing with rectifying fins

Abstract

The utility model discloses a water inlet channel flow guide casing of water jet propeller with rectifier fin, including the shell, one end fixedly connected with the water outlet pipe of the shell, the other end fixedly connected with the water inlet pipe, the inside wall fixedly connected with a plurality of rectifier fin main part of water inlet pipe, the bottom fixedly connected with the water inlet frame of water inlet pipe, the utility model discloses, through setting adjusting column, rotating column, flow guide plate, rotating disc, poking rod, second pivot and synchronous rod etc., servo motor drives first pivot rotation, and first pivot drives adjusting rod rotation, and adjusting rod drives adjusting column rotation, and adjusting column drives poking rod through moving groove, and one end of poking rod drives rotating disc rotation, and rotating disc drives corresponding rotating column rotation, and rotating column drives flow guide plate rotation, and flow guide plate passes through second pivot and synchronous rod cooperation simultaneously, makes a plurality of flow guide plates synchronous rotation, adjusts a plurality of flow guide plates to the predetermined angle, makes the water flow keep the best attack angle, improves water inlet efficiency.

Description

Technical Field

[0001] This utility model relates to the field of waterjet propulsion technology, and in particular to a waterjet propulsion inlet guide housing with rectifying fins. Background Technology

[0002] A waterjet propulsion system is a propulsion device that generates reaction force by jetting water. It is mainly used in scenarios requiring high maneuverability, such as speedboats, military landing craft, and high-speed ships, as well as in fields requiring high quietness, such as submarines.

[0003] However, in existing equipment, the water inlet of most water jet propulsion systems is vertically downward. When traveling at high speed, the water flow cannot maintain the optimal angle of attack, which affects the water intake efficiency. To address this, a guide shell for the water jet propulsion system with rectifier fins is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a guide shell for the inlet channel of a waterjet propulsion unit with rectifier fins.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a water jet propulsion inlet guide shell with rectifying fins, comprising an outer shell, an outlet pipe fixedly connected to one end of the outer shell, an inlet pipe fixedly connected to the other end of the outer shell, a plurality of rectifying fin bodies fixedly connected to the inner wall of the inlet pipe, an inlet frame fixedly connected to the bottom of the inlet pipe, a protective cover fixedly connected to the upper surface of the inlet frame, a guide structure provided on the protective cover, and two connecting plates fixedly connected to the bottom of the inlet frame;

[0006] The flow guiding structure includes a servo motor fixedly connected to one side inside the protective cover. The servo motor is electrically connected to the controller on the ship. When the ship moves forward at high speed, the servo motor is controlled to run by the controller on the ship.

[0007] As a further description of the above technical solution:

[0008] A first rotating shaft is rotatably connected through one side of the protective cover. One end of the first rotating shaft is fixedly connected to the output shaft of the servo motor, so that the servo motor drives the first rotating shaft to rotate.

[0009] As a further description of the above technical solution:

[0010] An adjusting rod is fixedly connected to the other end of the first rotating shaft, and an adjusting column is fixedly connected to one side of the adjusting rod. The first rotating shaft drives the adjusting rod to rotate, and the adjusting rod drives the adjusting column to rotate.

[0011] As a further description of the above technical solution:

[0012] The water inlet frame is internally connected to multiple rotating columns, and each rotating column is fixedly connected to a guide plate, so that the rotating column drives the guide plate to rotate.

[0013] As a further description of the above technical solution:

[0014] Each of the guide vanes has a second rotating shaft fixedly connected to its opposite side. Multiple second rotating shafts located on the same side are connected to a synchronizing rod on one side. The guide vanes rotate synchronously through the cooperation of the second rotating shafts and the synchronizing rod, thereby adjusting the multiple guide vanes to a predetermined angle.

[0015] As a further description of the above technical solution:

[0016] One end of one of the rotating columns passes through one side of the water inlet frame and is fixedly connected to a rotating disk. A toggle rod is fixedly connected to the outer wall of the rotating disk. A moving groove is provided on one side of the toggle rod. The interior of the moving groove is slidably connected to the adjusting column. The adjusting column moves the toggle rod through the moving groove. One end of the toggle rod drives the rotating disk to rotate, so that the rotating disk drives the corresponding rotating column to rotate.

[0017] As a further description of the above technical solution:

[0018] A transmission rod is rotatably connected through one side of the inlet pipe. One end of the transmission rod extends into the outer shell and is fixedly connected to a propeller. The other end is fixedly connected to the output shaft of the ship's engine. The engine drives the transmission rod to rotate, and the transmission rod drives the propeller to rotate. After being pressurized by the propeller, the water is sprayed out at high speed from the outlet pipe.

[0019] This utility model has the following beneficial effects:

[0020] 1. Compared with existing technologies, the inlet guide shell of this water jet propulsion device with rectifying fins, through the arrangement of a servo motor, a first rotating shaft, an adjusting rod, an adjusting column, a rotating column, a guide plate, a rotating disk, a deflector rod, a second rotating shaft, and a synchronizing rod, etc., allows the servo motor to drive the first rotating shaft to rotate, which in turn drives the adjusting rod to rotate. The adjusting rod then drives the adjusting column to rotate, and the adjusting column, through a moving slot, actuates the deflector rod. One end of the deflector rod drives the rotating disk to rotate, which in turn drives the corresponding rotating column to rotate. The rotating column then drives the guide plate to rotate. Simultaneously, the guide plates, through the cooperation of the second rotating shaft and the synchronizing rod, allow multiple guide plates to rotate synchronously, adjusting them to a predetermined angle to maintain the optimal angle of attack for the water flow and improve water intake efficiency.

[0021] 2. Compared with the prior art, the water jet propulsion inlet guide shell with rectifier fins, by setting rectifier fin bodies, when the water flows into the inlet pipe, the multiple rectifier fin bodies forcibly "straighten" the water flow, changing it from rotational motion to axial motion, ensuring that the water flow enters the shell in an axial manner. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the inlet guide shell of a water jet propulsion device with rectifying fins proposed in this utility model.

[0023] Figure 2 A cross-sectional view of the inlet guide shell of a water jet propulsion device with rectifying fins proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the flow guiding structure of the inlet guide shell of a water jet propulsion device with rectifying fins, as proposed in this utility model.

[0025] Figure 4 An exploded view of the flow guiding structure of the inlet guide shell of a water jet propulsion device with rectifying fins, as proposed in this utility model.

[0026] Legend:

[0027] 1. Outer shell; 2. Inlet pipe; 3. Outlet pipe; 4. Rectifying fin body; 5. Inlet frame; 6. Protective cover; 7. Connecting plate; 8. Flow guiding structure; 801. Servo motor; 802. First rotating shaft; 803. Adjusting rod; 804. Adjusting column; 805. Rotating column; 806. Flow guide plate; 807. Rotating disk; 808. Actuating rod; 809. Second rotating shaft; 810. Synchronizing rod; 9. Transmission rod; 10. Propeller. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1 to 4 This utility model provides a water jet propulsion inlet guide housing with rectifier fins: including an outer shell 1, one end of which is fixedly connected to a water outlet pipe 3, and the other end of which is fixedly connected to a water inlet pipe 2. A transmission rod 9 is rotatably connected through one side of the water inlet pipe 2. One end of the transmission rod 9 extends into the inner part of the outer shell 1 and is fixedly connected to a propeller 10. The other end is fixedly connected to the output shaft of the ship's engine. A water inlet frame 5 is fixedly connected to the bottom of the water inlet pipe 2. Two connecting plates 7 are fixedly connected to the bottom of the water inlet frame 5. A protective cover 6 is fixedly connected to the upper surface of the water inlet frame 5. A flow guide structure 8 is provided on the protective cover 6. Through the protection of the protective cover 6, water is prevented from entering the servo motor 801, thereby improving the service life of the servo motor 801.

[0030] In order to achieve the purpose of rectification, multiple rectifier fin bodies 4 are fixedly connected to the inner wall of the water inlet pipe 2. When the water flows into the water inlet pipe 2, the multiple rectifier fin bodies 4 forcibly "straighten" the water flow, making it change from rotational motion to axial motion, so as to ensure that the water flow enters the outer shell 1 in an axial manner.

[0031] To achieve the purpose of guiding the flow, the flow guiding structure 8 includes a servo motor 801 fixedly connected to one side inside the protective cover 6. The servo motor 801 is electrically connected to the controller on the ship. A first rotating shaft 802 is rotatably connected through one side of the protective cover 6. A sealing structure is provided at the rotatable connection between the first rotating shaft 802 and the protective cover 6 to prevent water from flowing into the interior of the protective cover 6. One end of the first rotating shaft 802 is fixedly connected to the output shaft of the servo motor 801, and the other end of the first rotating shaft 802 is fixedly connected to an adjusting rod 803. An adjusting column 804 is fixedly connected to one side of the adjusting rod 803. Multiple rotating columns 805 are rotatably connected inside the water inlet frame 5. A guide plate 806 is fixedly connected to each rotating column 805. A second rotating shaft 809 is fixedly connected to the side of each guide plate 806 that is far away from it. A synchronizing rod 810 is rotatably connected to one side of the multiple second rotating shafts 809 located on the same side. One end of a rotating column 805 passes through one side of the water inlet frame 5 and is fixedly connected to a rotating disk 807. A toggle rod 808 is fixedly connected to the outer wall of the rotating disk 807. A moving groove is provided on one side of the toggle rod 808. The interior of the moving groove is slidably connected to the adjusting column 804. The servo motor 801 drives the first rotating shaft 802 to rotate. The first rotating shaft 802 drives the adjusting rod 803 to rotate. The adjusting rod 803 drives the adjusting column 804 to rotate. The adjusting column 804 toggle the toggle rod 808 through the moving groove. One end of the toggle rod 808 drives the rotating disk 807 to rotate. The rotating disk 807 drives the corresponding rotating column 805 to rotate. The rotating column 805 drives the guide plate 806 to rotate. At the same time, the guide plate 806 cooperates with the second rotating shaft 809 and the synchronizing rod 810 to make multiple guide plates 806 rotate synchronously, adjusting multiple guide plates 806 to a predetermined angle, so that the water flow maintains the best angle of attack and improves the water intake efficiency.

[0032] Working principle: When the ship moves forward at high speed, the servo motor 801 is controlled by the ship's controller. The servo motor 801 drives the first rotating shaft 802 to rotate, which in turn drives the adjusting rod 803 to rotate. The adjusting rod 803 drives the adjusting column 804 to rotate, which in turn moves the adjusting rod 808 through the moving slot. One end of the adjusting rod 808 drives the rotating disk 807 to rotate, which in turn drives the corresponding rotating column 805 to rotate. The rotating column 805 drives the guide plate 806 to rotate, and at the same time, the guide plate 806... Through the cooperation of the second rotating shaft 809 and the synchronizing rod 810, multiple guide plates 806 are rotated synchronously, adjusting the multiple guide plates 806 to a predetermined angle, so that the water flow maintains the best angle of attack and improves the water intake efficiency. When the water flows into the water inlet pipe 2, multiple rectifier fin bodies 4 forcibly "straighten" the water flow, changing it from rotational motion to axial motion, ensuring that the water flow enters the outer shell 1 in an axial manner. The engine drives the transmission rod 9 to rotate, and the transmission rod 9 drives the propeller 10 to rotate. After being pressurized by the propeller 10, the water is sprayed out at high speed from the water outlet pipe 3.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water jet propulsion inlet guide housing with rectifying fins, comprising an outer shell (1), characterized in that: One end of the outer shell (1) is fixedly connected to a water outlet pipe (3), and the other end is fixedly connected to a water inlet pipe (2). Multiple rectifier fin bodies (4) are fixedly connected to the inner wall of the water inlet pipe (2). A water inlet frame (5) is fixedly connected to the bottom of the water inlet pipe (2). A protective cover (6) is fixedly connected to the upper surface of the water inlet frame (5). A flow guiding structure (8) is provided on the protective cover (6). Two connecting plates (7) are fixedly connected to the bottom of the water inlet frame (5). The flow guiding structure (8) includes a servo motor (801) fixedly connected to one side inside the protective cover (6), and the servo motor (801) is electrically connected to the controller on the ship.

2. The inlet guide housing of a waterjet propulsion device with rectifying fins according to claim 1, characterized in that: A first rotating shaft (802) is rotatably connected through one side of the protective cover (6), and one end of the first rotating shaft (802) is fixedly connected to the output shaft of the servo motor (801).

3. The inlet guide housing of a waterjet propulsion device with rectifying fins according to claim 2, characterized in that: An adjusting rod (803) is fixedly connected to the other end of the first rotating shaft (802), and an adjusting column (804) is fixedly connected to one side of the adjusting rod (803).

4. The inlet guide housing of a waterjet propulsion device with rectifying fins according to claim 3, characterized in that: The water inlet frame (5) is rotatably connected to a plurality of rotating columns (805), and a guide plate (806) is fixedly connected to each of the rotating columns (805).

5. The inlet guide housing of a waterjet propulsion device with rectifying fins according to claim 4, characterized in that: Each of the guide vanes (806) is fixedly connected to a second rotating shaft (809) on the opposite side, and a synchronizing rod (810) is rotatably connected to one side of multiple second rotating shafts (809) located on the same side.

6. The inlet guide housing of a waterjet propulsion device with rectifying fins according to claim 4, characterized in that: One end of one of the rotating columns (805) passes through one side of the water inlet frame (5) and is fixedly connected to a rotating disk (807). A toggle rod (808) is fixedly connected to the outer wall of the rotating disk (807). A moving groove is provided on one side of the toggle rod (808), and the interior of the moving groove is slidably connected to the adjusting column (804).

7. The inlet guide housing of a waterjet propulsion device with rectifying fins according to claim 1, characterized in that: A transmission rod (9) is rotatably connected through one side of the water inlet pipe (2). One end of the transmission rod (9) extends into the outer shell (1) and is fixedly connected to a propeller (10). The other end is fixedly connected to the engine output shaft on the ship.

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