A shaftless submersible thrust testing device

Abstract

This invention discloses a shaftless submersible thrust testing device, comprising a shaftless submersible thruster, a shaftless submersible thruster frame, and an outer frame. This invention relates to the field of shaftless submersible thrust testing technology. This shaftless submersible thrust testing device, by placing the entire assembly at the bottom of a test pool and fixing it in place, can test thrust data under different loads by reading data from the thrust weighing unit. By changing the power phase sequence, the shaftless submersible thruster moves in the opposite direction, simulating a ship's reverse movement, and testing the reverse thrust data under different loads, thus enabling continuous detection of the thruster's underwater thrust. It eliminates the need for flowing water, significantly reducing testing costs. Furthermore, since the shaftless submersible thruster is mounted on the shaftless submersible thruster frame, there is no need to provide a strong support structure for the shaftless submersible thruster, further reducing the complexity and construction costs of traditional testing structures, thereby directly reducing the initial investment costs for enterprises.

Description

Technical Field

[0001] This invention relates to the field of shaftless submersible thrust testing technology, specifically to a shaftless submersible thrust testing device. Background Technology

[0002] Traditional propulsion systems mostly rely on a motor output shaft to drive propeller blades, thus providing propulsion. However, with the increasing size of propulsion systems, their disadvantages—such as large size, increased design complexity, and higher construction costs—have become increasingly apparent. Shaftless submersible propulsion systems, on the other hand, integrate blades within a rotor, offering advantages such as high efficiency, small size, and low noise. They are gradually gaining widespread application in both civilian and military vessels. However, existing testing systems are complex and expensive. Furthermore, the current trend towards larger propulsion systems necessitates significant investment if a suspended circulating water tank testing system is adopted. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a shaftless submersible thrust testing device, which solves the aforementioned problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a shaftless submersible thruster thrust testing device, comprising a shaftless submersible thruster, a shaftless submersible thruster frame, and an outer frame. The shaftless submersible thruster is placed in the inner cavity of the shaftless submersible thruster frame. The shaftless submersible thruster frame comprises four long fixed rods, two sets of fixed square frames, and two sets of X-shaped base frames. The fixed square frames and X-shaped base frames are connected by the long fixed rods. Two sets of rollers are respectively provided at the four corners of the square frames on the long fixed rods. There are 16 rollers in total. Two anti-rotation plates are respectively located on both sides of the cuboid junction box in the middle of the long fixed rods.

[0005] The outer frame is located outside the shaftless submersible thruster frame and includes a long guide rail and crossbeams fixed on both sides of the long guide rail. Thrust weighing units are fixed on the middle crossbeams on both sides.

[0006] As a further aspect of the present invention: the outer frame is composed of 8 long guide rails and 6 crossbeams on both sides, wherein the long guide rails serve as both the frame structure and the roller guide rails of the shaftless submersible propulsion frame.

[0007] As a further aspect of the present invention: a cuboid junction box is provided on the top of the shaftless submersible thruster body.

[0008] As a further aspect of the present invention: the thrust weighing unit is used to test forward and reverse thrust data.

[0009] As a further aspect of the present invention, the anti-rotation plate is used to counteract the torque effect during the operation of the shaftless submersible thruster.

[0010] As a further aspect of the present invention: the fixed square frames on both sides of the shaftless submersible thruster frame are used to limit the shaftless submersible thruster, preventing it from moving back and forth or up and down, so that the thrust of the shaftless submersible thruster is transmitted to the rollers and finally to the thrust weighing unit, so as to ensure the authenticity of the data.

[0011] The entire unit is placed at the bottom of the test pool and fixed in place. When the shaftless submersible thruster is powered on, the thrust drives the rollers on the frame of the shaftless submersible thruster to move and make contact with the thrust weighing unit. By reading the data from the thrust weighing unit, thrust data under different loads can be tested. By changing the power phase sequence, the shaftless submersible thruster will move in the opposite direction to simulate the reverse movement of a ship and test the reverse thrust data under different loads.

[0012] Compared with existing technologies, this invention has the following advantages: by placing the entire unit at the bottom of the test pool and fixing it, the thrust data under different loads can be tested by reading the thrust weighing unit data. By changing the power phase sequence, the shaftless submersible thruster will move in the opposite direction to simulate the ship's backward movement and test the reverse thrust data under different loads, thereby enabling continuous detection of the underwater thrust of the thruster. It eliminates the need for flowing water, significantly reducing testing costs. Furthermore, since the shaftless submersible thruster is mounted on a shaftless submersible thruster frame, there is no need to provide a strong support structure for the shaftless submersible thruster, further reducing the complexity and construction cost of traditional testing structures, thus directly reducing the initial investment costs for enterprises. Attached Figure Description

[0013] Figure 1 This is a front view of the structure of the present invention;

[0014] Figure 2 This is a side view of the structure of the present invention;

[0015] Figure 3 This is a top view of the structure of the present invention;

[0016] Figure 4 This is a front view of the shaftless submersible thruster of the present invention;

[0017] Figure 5 This is a front view of the structure of the shaftless submersible thruster frame of the present invention;

[0018] Figure 6 This is a top view of the frame structure of the shaftless submersible thruster of the present invention;

[0019] Figure 7 This is a structural side view of the shaftless submersible thruster frame of the present invention;

[0020] Figure 8 This is a front view of the outer frame structure of the present invention;

[0021] Figure 9 This is a side view of the outer frame of the present invention.

[0022] In the diagram: 1. Shaftless submersible thruster; 2. Shaftless submersible thruster frame; 3. Outer frame; 4. Rectangular junction box; 5. Long fixing rod; 6. Fixed square frame; 7. X-shaped base frame; 8. Roller; 9. Anti-rotation plate; 10. Thrust weighing unit; 11. Long guide rail; 12. Crossbeam. Detailed Implementation

[0023] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0024] Please see Figure 1-9 This invention provides a technical solution: a shaftless submersible thruster thrust testing device, comprising a shaftless submersible thruster 1, a shaftless submersible thruster frame 2, and an outer frame 3. The shaftless submersible thruster 1 is placed inside the shaftless submersible thruster frame 2. The shaftless submersible thruster frame 2 includes four long fixed rods 5, two sets of fixed square frames 6, and two sets of X-shaped base frames 7. The fixed square frames 6 and X-shaped base frames 7 are connected by the long fixed rods 5. Two sets of rollers 8 are respectively set at the four corners of the square frames 6 on the long fixed rods 5, with 16 rollers 8. Two anti-rotation plates 9 are respectively located on both sides of the cuboid junction box 4 in the middle of the long fixed rods 5. By placing the whole device into the bottom of the test pool and fixing it, when the shaftless submersible thruster 1 is placed inside the test pool, the thrust of the shaftless submersible thruster 1 is tested. After the shaftless submersible thruster 1 is powered on, the thrust drives the roller 8 on the shaftless submersible thruster frame 2 to move and contact the thrust weighing unit 10. By reading the data from the thrust weighing unit 10, thrust data under different loads can be tested. By changing the power phase sequence, the shaftless submersible thruster 1 will move in the opposite direction to simulate the ship's backward movement and test the reverse thrust data under different loads. This allows for continuous detection of the underwater thrust of the thruster. No flowing water is required, greatly reducing testing costs. Furthermore, since the shaftless submersible thruster 1 is mounted on the shaftless submersible thruster frame 2, there is no need to provide a strong support structure for the shaftless submersible thruster 1, further reducing transmission costs.

[0025] The outer frame 3 is located outside the shaftless submersible thruster frame 2, and includes a long guide rail 11 and crossbeams 12 fixed on both sides of the long guide rail 11. Thrust weighing units 10 are fixed on the middle crossbeams 12 on both sides.

[0026] The outer frame 3 consists of 8 long guide rails 11 and 6 crossbeams 12 on both sides. The long guide rails 11 serve as both the frame structure and the guide rails for the rollers 8 of the shaftless submersible propulsion frame 2.

[0027] A rectangular junction box 4 is installed on the top of the shaftless submersible thruster 1.

[0028] The thrust weighing unit 10 is used to test forward and reverse thrust data.

[0029] Anti-rotation plate 9 is used to counteract the torque effect during operation of shaftless submersible thruster 1.

[0030] The fixed square frames 6 on both sides of the shaftless submersible thruster frame 2 are used to limit the shaftless submersible thruster 1, preventing the shaftless submersible thruster 1 from moving back and forth or up and down, so that the thrust of the shaftless submersible thruster 1 is transmitted to the roller 8 and finally to the thrust weighing unit 10, so as to ensure the authenticity of the data.

[0031] The entire assembly is placed at the bottom of the test pool and fixed in place. When the shaftless submersible thruster 1 is powered on, the thrust drives the rollers 8 on the shaftless submersible thruster frame 2 to move and contact the thrust weighing unit 10. By reading the data from the thrust weighing unit 10, thrust data under different loads can be tested. By changing the power phase sequence, the shaftless submersible thruster 1 will move in the opposite direction, simulating the ship's backward movement, and the reverse thrust data under different loads can be tested.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A shaftless submersible thrust testing device, comprising a shaftless submersible thruster (1), a shaftless submersible thruster frame (2), and an outer frame (3), characterized in that: The shaftless submersible thruster (1) is placed in the inner cavity of the shaftless submersible thruster frame (2). The shaftless submersible thruster frame (2) includes four long fixed rods (5), two sets of fixed square frames (6) and two sets of X-shaped base frames (7). The fixed square frames (6) and the X-shaped base frames (7) are connected by the long fixed rods (5). The long fixed rods (5) are provided with two sets of rollers (8) at the four corners of the square frames (6). There are 16 rollers (8). The long fixed rods (5) are provided with two anti-rotation plates (9) located on both sides of the cuboid junction box (4). The anti-rotation plates (9) are used to counteract the torque effect when the shaftless submersible thruster (1) is running. The outer frame (3) is located outside the shaftless submersible thruster frame (2), including a long guide rail (11) and crossbeams (12) fixed on both sides of the long guide rail (11). Thrust weighing units (10) are fixed on the crossbeams (12) on both sides. By changing the power phase sequence, the shaftless submersible thruster (1) will move in the opposite direction to simulate the ship's backward movement and test the reverse thrust data under different loads, thereby enabling continuous detection of the underwater thrust of the thruster.

2. The shaftless submersible thrust testing device according to claim 1, characterized in that: The outer frame (3) consists of 8 long guide rails (11) and 6 crossbeams (12) on both sides. The long guide rails (11) serve as both the frame structure and the guide rails for the rollers (8) of the shaftless submersible propulsion frame (2).

3. The shaftless submersible thrust testing device according to claim 1, characterized in that: The shaftless submersible thruster (1) has a cuboid junction box (4) on its top.

4. The shaftless submersible thrust testing device according to claim 1, characterized in that: The thrust weighing unit (10) is used to test forward and reverse thrust data.

5. The shaftless submersible thrust testing device according to claim 1, characterized in that: The fixed square frames (6) on both sides of the shaftless submersible thruster frame (2) are used to limit the shaftless submersible thruster (1).

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