Propeller for deep sea operation

Abstract

The utility model relates to a propeller for deep sea operation, which comprises a transmission component arranged in a barrel, the transmission component comprises a rotating shaft, one end of the rotating shaft is connected with a paddle, and the paddle is rotatably positioned in a flow guide cover connected with the barrel; an oil filling assembly is further arranged at the end, away from the flow guide cover, of the barrel. The oil filling assembly is arranged to conduct oil filling compensation on the interior of the barrel, the internal and external pressure difference of the deep sea high-pressure environment on the barrel structure is ingeniously balanced, the barrel can bear deep water high pressure without excessive thickening and weight increasing, and the structure pressure bearing problem is fundamentally solved; and meanwhile, dependence on heavy structural materials is avoided, the overall weight of the propeller is remarkably reduced, and the flexibility and propelling efficiency of the propeller in the deep sea environment can be maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of propellers, in particular to a propeller for deep-sea operations. Background Art

[0002] Looking at the various thrusters currently available on the market for underwater robots, we find that these small-sized thrusters are primarily designed and used in shallow waters. While they are effective in these shallow waters, they struggle when operating at greater depths.

[0003] The main reason for this is that their structures and pressure-resistant designs suffer from significant deficiencies. Specifically, either their designs are unable to withstand the immense pressures of the deep sea, or the weight of the structures has to be increased to meet these pressure requirements, significantly increasing their overall weight. This added weight not only affects the thruster's flexibility and efficiency, but also significantly reduces its ability to operate in the complex deep-sea environment, making it difficult to perform various deep-sea operations. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a thruster for deep-sea operations to solve one or more problems in the prior art.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A propeller for deep-sea operations, the propeller comprising a transmission assembly placed within a cylinder, the transmission assembly comprising a rotating shaft, one end of the rotating shaft being connected to a blade, the blade being rotatably positioned within a fairing connected to the cylinder; an oil-filling assembly is further provided at the end of the cylinder away from the fairing.

[0007] Furthermore, the transmission assembly further includes a stator and a rotor, wherein the stator is arranged on the inner wall of the cylinder, and the rotor is arranged on the rotating shaft and is rotatable relative to the stator.

[0008] Furthermore, the transmission assembly also includes a first bearing, the first bearing is connected to the inner wall of the cylinder close to the side of the blade, and the rotating shaft passes through the first bearing.

[0009] Furthermore, the transmission assembly also includes a second bearing and a bearing seat located in the cylinder on a side away from the blade, the second bearing is connected to the bearing seat, and the bearing seat is connected to the inner wall of the cylinder.

[0010] Furthermore, the rotating shaft passes through the second bearing and the bearing seat, and a magnetic steel is provided at one end of the rotating shaft close to the bearing seat.

[0011] Furthermore, the thruster also includes an encoder, which is connected to the bearing seat and located inside the cylinder, and the magnetic steel is electrically matched with the encoder.

[0012] Furthermore, the propeller also includes a sealing member, which is arranged inside the cylinder and close to the fairing, and the rotating shaft is also passed through the sealing member.

[0013] Furthermore, the oil-filling component includes a pagoda head, which is protruding from the surface of the cylinder and passes through the interior of the cylinder.

[0014] Furthermore, an exhaust hole is opened on the surface of the cylinder, and the oil filling component also includes a sealing plug, which is matched with the exhaust hole.

[0015] Furthermore, the propeller also includes an end cover, which is connected to an end of the cylinder away from the fairing.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0017] (1) By setting up an oil-filling component to fill the interior of the cylinder with oil for compensation, the pressure difference between the inside and outside of the cylinder structure caused by the deep-sea high-pressure environment is cleverly balanced, so that the cylinder can withstand the deep-water high pressure without excessive thickness or weight increase, fundamentally solving the problem of structural pressure bearing; at the same time, it avoids relying on bulky structural materials, significantly reduces the overall weight of the thruster, and helps maintain its flexibility and propulsion efficiency in the deep-sea environment.

[0018] (2) By optimizing the layout of the first bearing, second bearing, and bearing seat to support the rotating shaft, and combining it with the design of the fairing to reduce water flow turbulence, the stability and accuracy of power transmission are guaranteed, and the propulsion efficiency is improved. At the same time, the setting of the encoder enables precise adjustment of the propeller speed and thrust. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a deep-sea operation propeller according to an embodiment of the present utility model is shown.

[0020] Figure 2 The present invention shows a structural front view of a thruster for deep-sea operations according to an embodiment of the present invention.

[0021] Figure 3 A cross-sectional structural diagram along the AA direction of a propeller for deep-sea operations according to an embodiment of the present invention is shown.

[0022] Markings in the accompanying drawings: 1. Cylinder; 11. Exhaust hole; 2. Transmission assembly; 21. Rotating shaft; 22. Stator; 23. Rotor; 24. First bearing; 25. Second bearing; 26. Bearing seat; 3. Blade; 4. Fairing; 5. Oil-filling assembly; 51. Pagoda head; 52. Sealing plug; 6. Magnet; 7. Encoder; 8. Seal; 9. End cover. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the following is a further detailed description of a deep-sea operation thruster proposed by the present invention in conjunction with the accompanying drawings and specific implementation methods. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the present invention. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present invention. Therefore, they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0024] See also Figures 1 to 3 The propeller for deep-sea operations in this embodiment includes a transmission assembly 2 placed in a cylinder 1. The transmission assembly 2 includes a rotating shaft 21. One end of the rotating shaft 21 is connected to the blade 3. Preferably, the blade 3 is connected to the rotating shaft 21 through a semicircular key and is fastened with a nut. Then, when the rotating shaft 21 rotates, the blade 3 rotates with it. The blade 3 is rotatably located in a fairing 4 connected to the cylinder 1. The fairing 4 can effectively reduce the turbulence of the water flow, improve the overall efficiency of the propeller, and at the same time provide good protection for the blade 3. The cylinder 1 is also provided with an oil filling assembly 5 at the end away from the fairing 4. Through the provision of the oil filling assembly 5, the oil filling compensation technology is implemented to achieve deep-sea pressure resistance.

[0025] Furthermore, the transmission assembly 2 further includes a stator 22 and a rotor 23. The stator 22 is mounted on the inner wall of the cylinder 1, and the rotor 23 is disposed on the rotating shaft 21 and is rotatable relative to the stator 22. Preferably, the stator 22 and the rotor 23 are closely connected and interact with each other through an electromagnetic field, thereby jointly converting electrical energy into mechanical energy, i.e., rotational motion.

[0026] Furthermore, the transmission assembly 2 also includes a first bearing 24, the first bearing 24 is connected to the inner wall of the cylinder 1 on the side close to the blade 3, and the rotating shaft 21 is passed through the first bearing 24. The transmission assembly 2 also includes a second bearing 25 and a bearing seat 26 located in the cylinder 1 on the side away from the blade 3, the second bearing 25 is connected to the bearing seat 26, the bearing seat 26 is connected to the inner wall of the cylinder 1, and the rotating shaft 21 is passed through the second bearing 25 and the bearing seat 26. Through the arrangement of the first bearing 24 and the second bearing 25, the rotating shaft 21 can be effectively supported, ensuring the stability and accuracy of the rotating shaft 21 during operation, while reducing mechanical wear caused by high loads or deep-sea high-pressure environments. In order to adapt to the complex working environment of the deep sea, the first bearing 24 and the second bearing 25 are preferably made of special materials that are corrosion-resistant and high-pressure resistant, thereby improving the reliability and service life of the propeller.

[0027] Furthermore, the rotating shaft 21 is provided with a magnet 6 at one end near the bearing seat 26. The propeller also includes an encoder 7, which is connected to the bearing seat 26 and located inside the cylinder 1. The propeller rotation is controlled by an external controller via a drive plate. Based on the setting of the encoder 7, the encoder 7 is used to adjust the propeller speed, thereby adjusting the propeller output thrust. The magnet 6 is also electrically coupled to the encoder 7. When the magnet 6 rotates with the rotating shaft 21, the encoder 7 senses the change in the magnetic field and can thus provide feedback on information such as the speed and position of the rotating shaft 21.

[0028] Furthermore, the propeller also includes a seal 8, which is arranged inside the cylinder 1 and close to the fairing 4, and the rotating shaft 21 is also passed through the seal 8. The provision of the seal 8 ensures the sealing function of the blade 3 during rotation, thereby preventing the oil medium in the cylinder 1 from overflowing. Preferably, the seal 8 is made of a highly wear-resistant and corrosion-resistant material to adapt to the high pressure and complex water quality environment of the deep sea, and at the same time forms a reliable sealing connection with the inner wall of the cylinder 1, effectively preventing the intrusion of external moisture and the leakage of the internal oil medium, thereby further improving the overall performance and service life of the propeller.

[0029] Furthermore, the oil-filling assembly 5 includes a pagoda head 51, which protrudes from the surface of the cylinder 1 and extends into the interior of the cylinder 1. The pagoda head 51 is used to lead out the three-phase wires of the motor and the power and signal wires of the encoder 7 within the cylinder 1. Preferably, the pagoda head 51 is covered with a PU hose, and the hose ends in a watertight plug with a one-way valve. The wires of the motor and the encoder 7 are soldered to the corresponding pins of the watertight plug.

[0030] Furthermore, an exhaust hole 11 is formed on the surface of the cylinder 1, and the oil filling assembly 5 further includes a sealing plug 52, which is fitted into the exhaust hole 11. When filling the propeller with oil, a special oil filling tool is used to connect the watertight plug of the propeller, the one-way valve in the plug is opened, and the exhaust hole 11 of the cylinder 1 is opened at the same time, so as to discharge the air inside the cylinder 1 during the oil filling process of the propeller, start oil filling, and when the cylinder 1 is full of oil, the sealing plug 52 is used to seal the exhaust hole 11.

[0031] Furthermore, the thruster further includes an end cap 9, which is connected to the end of the cylinder 1 away from the shroud 4. This design not only ensures the overall sealing and stability of the thruster, but also facilitates rapid positioning and disassembly during maintenance and inspection of the internal structure of the cylinder 1, thereby improving the reliability and service life of the equipment.

[0032] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A propeller for deep-sea operations, characterized by: The propeller includes a transmission assembly placed in the cylinder, the transmission assembly includes a rotating shaft, one end of the rotating shaft is connected to the blade, and the blade is rotatably located in a fairing connected to the cylinder; the cylinder is also provided with an oil-filled assembly at the end away from the fairing; the transmission assembly also includes a second bearing and a bearing seat located in the cylinder on the side away from the blade, the second bearing is connected to the bearing seat, the bearing seat is connected to the inner wall of the cylinder, and the rotating shaft passes through the second bearing and the bearing seat; the rotating shaft is also provided with a magnet at one end close to the bearing seat, and the propeller also includes an encoder, the encoder is connected to the bearing seat and is located inside the cylinder, and the magnet is electrically matched with the encoder.

2. A deep-sea operation propeller according to claim 1, characterized in that: The transmission assembly further includes a stator and a rotor. The stator is arranged on the inner wall of the cylinder, and the rotor is arranged on the rotating shaft and is rotatable relative to the stator.

3. The deep-sea operation propeller according to claim 2, characterized in that: The transmission assembly further includes a first bearing, which is connected to the inner wall of the cylinder near the blade, and the rotating shaft passes through the first bearing.

4. A deep-sea operation propeller according to claim 3, characterized in that: The propeller further includes a sealing member, which is arranged inside the cylinder and close to the fairing, and the rotating shaft is also passed through the sealing member.

5. The deep-sea operation propeller according to claim 4, characterized in that: The oil filling component includes a pagoda head, which is protruding from the surface of the cylinder and passes through the interior of the cylinder.

6. The deep-sea operation propeller according to claim 5, characterized in that: An exhaust hole is also provided on the surface of the cylinder, and the oil filling component further comprises a sealing plug, which is matched with the exhaust hole.

7. The deep-sea operation propeller according to claim 6, characterized in that: The propeller further includes an end cover connected to an end of the cylinder away from the fairing.

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