Pressurizing flow guide nozzle for ship propeller

Abstract

The utility model discloses a supercharging diversion nozzle for a ship thruster, which comprises a thruster body, a propeller is arranged in the thruster body, one side of the thruster body is provided with a diversion pipe, and one side of the diversion pipe far away from the thruster body is fixedly connected with a spray pipe. The beneficial effects are that the folding blades and the straight blades are arranged, and the deflection direction of the folding blades is opposite to the rotation direction of the propellers, so that the folding blades are parallel to water flow, and resistance is reduced; through the arrangement of the inner sealing ring and the side sealing ring, the installation between the propeller body and the flow guide pipe is sealed, the installation sealing effect is improved, and the pressurization flow guide stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressurization and diversion, in particular to a pressurization and diversion nozzle for a ship propeller. Background Technique

[0002] A ship propeller refers to an energy converter in a ship propulsion device. It is an energy converter that converts natural force, human power or mechanical energy into the thrust of a ship. The function of a ship propeller is to convert the power generated by an engine into the thrust for the ship to move forward, so as to overcome the resistance of the ship sailing in water and push the ship forward. It is a key tool for providing thrust on a ship. A ship propeller is a device that converts the rotational power of an engine into propulsion force, enabling the ship to move forward or backward in water. A propeller is a common form of a ship propeller, which uses the rotation of the propeller blades to push the water flow, thereby generating thrust to make the ship move forward. However, the water flow at the tip of the propeller blade is still divergent, and the acting water flow is not concentrated, which may cause some water flow to fail to be effectively utilized to generate thrust, thereby reducing the propulsion efficiency. Content of the Utility Model

[0003] The purpose of the utility model is to provide a pressurization and diversion nozzle for a ship propeller, so as to solve the problem that the water flow at the tip of the propeller blade in the above-mentioned background technique is still divergent, the acting water flow is not concentrated, which may cause some water flow to fail to be effectively utilized to generate thrust, thereby reducing the propulsion efficiency.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A pressurization and diversion nozzle for a ship propeller, including a propeller body, a propeller is arranged inside the propeller body, a diversion pipe is installed on one side of the propeller body, a nozzle is fixedly connected to the side of the diversion pipe away from the propeller body, a plurality of folding blades cooperating with the propeller are fixedly connected at equal intervals inside the diversion pipe, straight blades are fixedly connected to one side of each of the plurality of folding blades, the straight blades are fixedly connected to the inside of the diversion pipe, a side sealing ring is fixedly connected to the inside of the diversion pipe, and an inner sealing ring cooperating with the side sealing ring is fixedly connected to one side of the propeller body.

[0005] As a preferred scheme of the utility model: A plurality of second outer fixing plates are fixedly connected at equal intervals on the outside of the propeller body, and a plurality of first outer fixing plates are fixedly connected at equal intervals on the outside of the diversion pipe.

[0006] As a preferred scheme of the utility model: An installation through hole is opened inside the first outer fixing plate, and a threaded through hole cooperating with the installation through hole is opened inside the second outer fixing plate.

[0007] As a preferred scheme of the utility model: An installation bolt is arranged inside the installation through hole, and the installation bolt is threadedly connected with the threaded through hole.

[0008] As a preferred embodiment of the present utility model: A limit nut for cooperating with the mounting bolt is provided on one side of the second outer fixing plate.

[0009] As a preferred embodiment of the present utility model: The deflection direction of the folding blade is opposite to the rotation direction of the propeller.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing folding blades and straight blades, and the deflection direction of the folding blades being opposite to the rotation direction of the propeller, it is achieved that the folding blades are parallel to the water flow to reduce the generation of resistance, which can reduce the resistance when the fluid passes through, improve the overall efficiency of the thruster body, and by providing an inner sealing ring and a side sealing ring, the installation between the thruster body and the guide pipe is sealed, improving the installation sealing effect and enhancing the stability of pressurized diversion. Description of the Drawings

[0011] Figure 1 It is a schematic diagram of the internal structure of the present utility model;

[0012] Figure 2 Of the present utility model Figure 1 Enlarged view at A in;

[0013] Figure 3 It is a left view of the thruster body of the present utility model.

[0014] In the figure: 1, thruster body; 2, guide pipe; 3, nozzle; 4, folding blade; 5, straight blade; 6, inner sealing ring; 7, side sealing ring; 8, first outer fixing plate; 9, second outer fixing plate; 10, mounting through hole; 11, threaded through hole; 12, mounting bolt; 13, limit nut. Detailed Embodiment

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0016] Please refer to Figures 1 to 3, the present utility model provides a technical solution: a pressurizing and guiding nozzle for a ship propeller, which includes a propeller body 1. A propeller is provided inside the propeller body 1. A guiding pipe 2 is installed on one side of the propeller body 1. A nozzle 3 is fixedly connected to the side of the guiding pipe 2 away from the propeller body 1. A plurality of folding blades 4 that cooperate with the propeller are fixedly connected at equal intervals inside the guiding pipe 2. A straight blade 5 is fixedly connected to one side of each of the plurality of folding blades 4. The straight blade 5 is fixedly connected to the inner side of the guiding pipe 2. A side sealing ring 7 is fixedly connected to the inner side of the guiding pipe 2. An inner sealing ring 6 that cooperates with the side sealing ring 7 is fixedly connected to one side of the propeller body 1. When installing between the guiding pipe 2 and the propeller body 1, the inner sealing ring 6 and the side sealing ring 7 are sealed to ensure the installation sealing effect between the propeller body 1 and the guiding pipe 2.

[0017] Among them, a plurality of second outer fixing plates 9 are fixedly connected at equal intervals on the outer side of the propeller body 1. A plurality of first outer fixing plates 8 are fixedly connected at equal intervals on the outer side of the guiding pipe 2. The first outer fixing plates 8 and the second outer fixing plates 9 cooperate to facilitate the installation and fixation between the propeller body 1 and the guiding pipe 2.

[0018] Among them, an installation through hole 10 is opened inside the first outer fixing plate 8, and a threaded through hole 11 that cooperates with the installation through hole 10 is opened inside the second outer fixing plate 9.

[0019] Among them, an installation bolt 12 is arranged inside the installation through hole 10. The installation bolt 12 is threadedly connected to the threaded through hole 11. By inserting the installation bolt 12 into the installation through hole 10 and rotating the installation bolt 12 for threaded installation with the threaded through hole 11, the propeller body 1 and the guiding pipe 2 can be positioned and installed.

[0020] Among them, a limit nut 13 that cooperates with the installation bolt 12 is arranged on one side of the second outer fixing plate 9. After installation, the limit nut 13 is threadedly installed on the outer side of the installation bolt 12 to ensure the fixing stability of the installation bolt 12 and fix the guiding pipe 2 and the propeller body 1.

[0021] Among them, the deflection direction of the folding blade 4 is opposite to the rotation direction of the propeller. The folding blade 4 is parallel to the water flow to reduce the generation of resistance, which can reduce the resistance when the fluid passes through and improve the overall efficiency of the propeller body 1.

[0022] Specifically, during use, the deflection direction of the folding blade 4 is opposite to the rotation direction of the propeller. The folding blade 4 is parallel to the water flow to reduce the generation of resistance, which can reduce the resistance when the fluid passes through. The water discharged from the thruster body 1 is pressurized and guided through the draft tube 2 and the nozzle 3 and ejected. When installing between the draft tube 2 and the thruster body 1, a sealing treatment is carried out between the inner sealing ring 6 and the side sealing ring 7. Through the cooperation and fitting between the first outer fixing plate 8 and the second outer fixing plate 9, the mounting bolt 12 is inserted into the mounting through hole 10, and the mounting bolt 12 is rotationally threadedly installed with the threaded through hole 11. After installation, a limit nut 13 is threadedly installed outside the mounting bolt 12 to ensure the fixing stability of the mounting bolt 12, and the draft tube 2 and the thruster body 1 are installed and fixed.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0024] In addition, the terms "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", and "fourth" may explicitly or implicitly include at least one of such features.

[0025] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "setting", "connection", "fixation", "swivel connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A supercharging and guiding nozzle for a ship propeller, comprising a propeller body (1), characterized in that, Inside the thruster body (1), there is a propeller. On one side of the thruster body (1), a draft tube (2) is installed. On the side of the draft tube (2) away from the thruster body (1), a nozzle (3) is fixedly connected. Inside the draft tube (2), a plurality of turning vanes (4) cooperating with the propeller are fixedly connected at equal intervals. On one side of the plurality of turning vanes (4), straight vanes (5) are fixedly connected. The straight vanes (5) are fixedly connected to the inner side of the draft tube (2). Inside the draft tube (2), a side sealing ring (7) is fixedly connected. On one side of the thruster body (1), an inner sealing ring (6) cooperating with the side sealing ring (7) is fixedly connected.

2. The pressure-boosting and flow-guiding nozzle for a ship propeller according to claim 1, characterized in that: On the outer side of the thruster body (1), a plurality of second outer fixing plates (9) are fixedly connected at equal intervals. On the outer side of the draft tube (2), a plurality of first outer fixing plates (8) are fixedly connected at equal intervals.

3. The pressure-increasing and flow-guiding nozzle for a ship propeller according to claim 2, characterized in that: An installation through hole (10) is opened inside the first outer fixing plate (8). A threaded through hole (11) cooperating with the installation through hole (10) is opened inside the second outer fixing plate (9).

4. The pressurizing and guiding nozzle for a ship propeller according to claim 3, characterized in that: An installation bolt (12) is arranged inside the installation through hole (10). The installation bolt (12) is threadedly connected to the threaded through hole (11).

5. The pressure-increasing and flow-guiding nozzle for a ship propeller according to claim 4, characterized in that: On one side of the second outer fixing plate (9), a limit nut (13) cooperating with the installation bolt (12) is arranged.

6. The pressure-boosting and flow-guiding nozzle for a ship propeller according to claim 1, characterized in that: The deflection direction of the turning vane (4) is opposite to the rotation direction of the propeller.

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