Marine propulsion equipment

Abstract

Marine propelling equipment is provided with a power mechanism and a guide pipe mechanism. The power mechanism comprises a suspension mounting frame, a transmission shaft and stirring blades; the guide pipe mechanism comprises a water inlet assembly and a pressurizing kinetic energy assembly, the water inlet assembly comprises a first-stage water inlet pipe, a second-stage power pipe and a third-stage power pipe, and the pressurizing kinetic energy assembly comprises a compression pipe and a jet orifice; one end of the transmission shaft is connected with the suspension mounting frame, the other end of the transmission shaft extends into the first-stage water inlet pipe, and the transmission shaft extending into the first-stage water inlet pipe is connected with the stirring blade located in the first-stage water inlet pipe; one end of the second-stage power pipe is connected with the first-stage water inlet pipe, one end of the third-stage power pipe is connected with the second-stage power pipe, the other end of the third-stage power pipe is connected with one end of the compression pipe, and the other end of the compression pipe is connected with the jet orifice. The stability of the ship in the operation process is improved, and interference of a surrounding flow field to the ship is reduced; the propulsion efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a marine propulsion device, belonging to the technical field of marine propellers. Background Art

[0002] The marine propeller is the most important propulsion structure in the operation of the ship. Generally, the marine propeller is installed horizontally at the rear of the hull. During operation, the irregular action of the ocean current can easily cause interference to the horizontally installed propeller, causing it to malfunction and affect navigation safety. At the same time, the propeller of the horizontally installed propeller often encounters the problem of entanglement with linear objects in the water. Once entangled by linear objects, the entanglement force increases with the gradual increase in the number of entanglements, resulting in greater resistance to the propeller and increased energy consumption. In severe cases, the blades may not be able to operate normally due to excessive entanglement of linear objects, which may cause the hull to stop running and cause safety hazards. Utility Model Content

[0003] The utility model aims at the deficiencies in the prior art and provides a marine propulsion device to solve the problems of easy failure, increased energy consumption and potential safety hazards in the conventional technology.

[0004] The utility model solves the above technical problems with the following technical solutions: A marine propulsion device, characterized in that it comprises a power mechanism and a duct mechanism; the power mechanism comprises a suspension mounting frame, a transmission shaft and a stirring blade; the duct mechanism comprises a water inlet assembly and a boost kinetic energy assembly, the water inlet assembly comprises a primary water inlet pipe, a secondary power pipe and a tertiary power pipe, and the boost kinetic energy assembly comprises a compression pipe and an injection port;

[0005] One end of the transmission shaft is connected to the suspension mounting frame, and the other end of the transmission shaft extends into the interior of the primary water inlet pipe, and the transmission shaft extending into the interior of the primary water inlet pipe is connected to the stirring blade inside the primary water inlet pipe;

[0006] One end of the secondary power tube is connected to the primary water inlet pipe, one end of the tertiary power tube is connected to the secondary power tube, the other end of the tertiary power tube is connected to one end of the compression tube, and the other end of the compression tube is connected to the injection port.

[0007] As a preferred solution for the marine propulsion equipment, it also includes a filter screen and an upper limit frame; the filter screen is fixed to the end of the first-level water inlet pipe, a rotating ring sleeve is provided on the periphery of the filter screen, and the upper limit frame is connected to the rotating ring sleeve.

[0008] As a preferred solution for the marine propulsion equipment, it also includes a lower limit frame, a fixing plate and an outer wall scraper; the lower limit frame passes through the gap of the upper limit frame;

[0009] The fixing plate is connected to the lower limiting frame, the fixing plate is distributed along the outer wall of the primary water inlet pipe, and the outer wall scraper is connected to the fixing plate.

[0010] As a preferred solution for the marine propulsion device, a first opening is formed at the center of the upper limit frame, and a second opening is formed at the center of the lower limit frame;

[0011] The transmission shaft extends from the first opening and the second opening into the interior of the primary water inlet pipe; the transmission shaft drives the upper limit frame, the lower limit frame, the fixing plate and the outer wall scraper to rotate.

[0012] As a preferred solution for the marine propulsion equipment, water delivery holes are distributed on the annular wall of the first-level water inlet pipe; and drainage guide blades are distributed on the inner wall of the first-level water inlet pipe near one end of the second-level power tube.

[0013] As a preferred solution for the marine propulsion equipment, the secondary power tube is in the shape of an inverted truncated cone, and spiral acceleration blades are distributed on the inner wall of the secondary power tube.

[0014] As a preferred solution for marine propulsion equipment, the tertiary power tube adopts a 90° elbow pipe to change the direction of water flow in the secondary power tube.

[0015] As a preferred solution for the marine propulsion equipment, a plurality of extended blades are distributed on the inner wall of the three-stage power tube.

[0016] As a preferred solution for the marine propulsion equipment, the tertiary power tube and the compression tube are welded, and the caliber of the compression tube outlet end is smaller than the caliber of the compression tube inlet end.

[0017] As a preferred solution for the marine propulsion device, the outlet port diameter of the injection port is larger than the inlet port diameter of the injection port.

[0018] The beneficial effects of the utility model are as follows: a power mechanism and a duct mechanism are provided; the power mechanism includes a suspension mounting frame, a transmission shaft and a stirring blade; the duct mechanism includes a water inlet assembly and a boost kinetic energy assembly, the water inlet assembly includes a primary water inlet pipe, a secondary power pipe and a tertiary power pipe, and the boost kinetic energy assembly includes a compression pipe and an injection port; one end of the transmission shaft is connected to the suspension mounting frame, the other end of the transmission shaft extends into the interior of the primary water inlet pipe, the transmission shaft extending into the interior of the primary water inlet pipe is connected to the stirring blade inside the primary water inlet pipe; one end of the secondary power pipe is connected to the primary water inlet pipe, one end of the tertiary power pipe is connected to the secondary power pipe, the other end of the tertiary power pipe is connected to one end of the compression pipe, and the other end of the compression pipe is connected to the injection port. The utility model can better resist the influence of wind and waves, improve the stability of the ship's operation process, and reduce the interference of the surrounding flow field on it; it can effectively prevent solid particles from entering the interior of the equipment, thereby reducing friction and resistance and improving propulsion efficiency; no human replacement, cleaning and replacement are required, and the stability and reliability of operation are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the marine propulsion device provided in the embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of a marine propulsion device provided in an embodiment of the utility model;

[0023] Figure 3 It is a schematic diagram of the local structure of the marine propulsion equipment provided in the embodiment of the utility model.

[0024] In the figure, 1. power mechanism; 2. duct mechanism; 3. suspension mounting frame; 4. transmission shaft; 5. stirring blade; 6. water inlet assembly; 7. boost kinetic energy assembly; 8. primary water inlet pipe; 9. secondary power pipe; 10. tertiary power pipe; 11. compression pipe; 12. injection port; 13. filter screen; 14. upper limit frame; 15. rotating ring sleeve; 16. lower limit frame; 17. fixing plate; 18. outer wall scraper; 19. first opening; 20. second opening; 21. water delivery hole; 22. drainage guide blade; 23. spiral acceleration blade; 24. extension blade. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] See also Figure 1 , Figure 2 and Figure 3 The embodiment of the utility model provides a marine propulsion device, characterized in that it includes a power mechanism 1 and a duct mechanism 2; the power mechanism 1 includes a suspension mounting frame 3, a transmission shaft 4 and a stirring blade 5; the duct mechanism 2 includes a water inlet assembly 6 and a boost kinetic energy assembly 7, the water inlet assembly 6 includes a primary water inlet pipe 8, a secondary power pipe 9 and a tertiary power pipe 10, and the boost kinetic energy assembly 7 includes a compression pipe 11 and an injection port 12;

[0028] Among them, one end of the transmission shaft 4 is connected to the suspension mounting frame 3, and the other end of the transmission shaft 4 extends into the first-level water inlet pipe 8, and the transmission shaft 4 extending into the first-level water inlet pipe 8 is connected to the stirring blade 5 inside the first-level water inlet pipe 8;

[0029] Among them, one end of the secondary power tube 9 is connected to the primary water inlet pipe 8, one end of the tertiary power tube 10 is connected to the secondary power tube 9, the other end of the tertiary power tube 10 is connected to one end of the compression tube 11, and the other end of the compression tube 11 is connected to the injection port 12.

[0030] In this embodiment, it also includes a filter screen 13 and an upper limit frame 14; the filter screen 13 is fixed at the end of the primary water inlet pipe 8, and a rotating ring sleeve 15 is provided on the periphery of the filter screen 13, and the upper limit frame 14 is connected to the rotating ring sleeve 15; it also includes a lower limit frame 16, a fixed plate 17 and an outer wall scraper 18; the lower limit frame 16 passes through the gap of the upper limit frame 14; the fixed plate 17 is connected to the lower limit frame 16, the fixed plate 17 is distributed along the outer wall of the primary water inlet pipe 8, and the outer wall scraper 18 is connected to the fixed plate 17; a first opening 19 is formed at the center of the upper limit frame 14, and a second opening 20 is formed at the center of the lower limit frame 16; the transmission shaft 4 extends into the interior of the primary water inlet pipe 8 through the first opening 19 and the second opening 20; the transmission shaft 4 drives the upper limit frame 14, the lower limit frame 16, the fixed plate 17 and the outer wall scraper 18 to rotate.

[0031] Specifically, the spiral stirring blade 5 is placed inside the primary water inlet pipe 8 and is connected to the hull by means of a hanging mounting frame 3. The stirring blade 5 can be driven to rotate through a transmission shaft 4 to provide power. Since the stirring blade 5 is placed inside the primary water inlet pipe 8 and is provided with a filter screen 13, the stirring blade 5 can be isolated from the external environment, so that the stirring blade 5 will not be affected by solid impurities in the water during operation and is not easy to contact with aquatic organisms, which not only improves the stability of operation but also reduces the impact on the aquatic environment.

[0032] Among them, the upper limit frame 14 and the lower limit frame 16 are driven to rotate synchronously through the rotation of the transmission shaft 4, and the outer wall scraper 18 connected to the lower limit frame 16 through the fixed plate 17 will make a circular motion around the first-level water inlet pipe 8, and clean and remove impurities attached to the first-level water inlet pipe 8, which can not only ensure the water quality entering the first-level water inlet pipe 8, but also avoid the fluctuation of the stirring blade 5 due to the change of the external environment during the rotation process, protect the normal operation of the stirring blade 5, and avoid the involvement of other objects.

[0033] It should be noted that the upper limit frame 14 can rotate relative to the filter screen 13 through the rotating ring 15, thereby realizing synchronous rotation of the upper limit frame 14 and the lower limit frame 16, and there will be no interference between the upper limit frame 14 and the lower limit frame 16.

[0034] In this embodiment, water delivery holes 21 are distributed on the annular wall of the primary water inlet pipe 8; drainage guide blades 22 are distributed on the inner wall of the primary water inlet pipe 8 near one end of the secondary power pipe 9; the secondary power pipe 9 is in the shape of an inverted truncated cone, and spiral acceleration blades 23 are distributed on the inner wall of the secondary power pipe 9.

[0035] Specifically, the medium required for the rotation of the stirring blade 5 is provided by the filter screen 13 and a plurality of water delivery holes 21 on the circumferential outer wall of the primary water inlet pipe 8, ensuring the amount of water required by the stirring blade 5. A plurality of hydrophobic guide blades 22 are provided on the inner wall of the primary water inlet pipe 8, and the kinetic water provided by the stirring blade 5 is transported to the secondary power pipe 9 along the hydrophobic guide blades 22.

[0036] Among them, the secondary power tube 9 is welded with the primary water inlet pipe 8 and the tertiary power tube 10. The secondary power tube 9 is a concentric reducer tube. A spiral acceleration blade 23 is provided on the secondary power tube 9. The tube diameter compression and the spiral acceleration blade 23 are used to further compress the kinetic energy of water, thereby increasing the flow rate and output kinetic energy of water.

[0037] In this embodiment, the tertiary power tube 10 adopts a 90° elbow pipe fitting to change the water flow direction in the secondary power tube 9, and a plurality of extended blades 24 are distributed on the inner wall of the tertiary power tube 10; the tertiary power tube 10 and the compression tube 11 are welded, and the diameter of the outlet end of the compression tube 11 is smaller than the diameter of the inlet end of the compression tube 11; the outlet port diameter of the injection port 12 is larger than the inlet port diameter of the injection port 12.

[0038] Specifically, since the tertiary power tube 10 is a 90° elbow pipe, the tertiary power tube 10 is used to change the direction of water flow and convert the vertical thrust into horizontal thrust. The inner wall of the tertiary power tube 10 is provided with a plurality of extension blades 24, and the tertiary power tube 10 is welded to the compression tube 11. The diameter of the compression tube 11 is further reduced to increase the flow rate and kinetic energy of the output water. At the same time, the high-pressure kinetic energy water inside the pipeline is sprayed out by expanding the injection port 12, so as to obtain a larger contact area with the water and provide the required horizontal propulsion for the ship.

[0039] In summary, the utility model is provided with a power mechanism 1 and a duct mechanism 2; the power mechanism 1 includes a suspension mounting frame 3, a transmission shaft 4 and a stirring blade 5; the duct mechanism 2 includes a water inlet assembly 6 and a boost kinetic energy assembly 7, the water inlet assembly 6 includes a primary water inlet pipe 8, a secondary power pipe 9 and a tertiary power pipe 10, and the boost kinetic energy assembly 7 includes a compression pipe 11 and an injection port 12; one end of the transmission shaft 4 is connected to the suspension mounting frame 3, and the other end of the transmission shaft 4 extends into the interior of the primary water inlet pipe 8, and the transmission shaft 4 extending into the interior of the primary water inlet pipe 8 is connected to the stirring blade 5 located inside the primary water inlet pipe 8; one end of the secondary power pipe 9 is connected to the primary water inlet pipe 8, one end of the tertiary power pipe 10 is connected to the secondary power pipe 9, the other end of the tertiary power pipe 10 is connected to one end of the compression pipe 11, and the other end of the compression pipe 11 is connected to the injection port 12. The spiral stirring blade 5 is placed inside the primary water inlet pipe 8, connected to the hull by a hanging mounting frame 3, and driven by a transmission shaft 4 to provide power. Because the stirring blade 5 is placed inside the primary water inlet pipe 8 and is provided with a filter screen 13, the stirring blade 5 can be isolated from the external environment, so that the stirring blade 5 will not be affected by solid impurities in the water during operation, and it is not easy to contact with aquatic organisms, which not only improves the stability of operation, but also reduces the impact on the aquatic environment. The upper limit frame 14 and the lower limit frame 16 are driven to rotate synchronously by the rotation of the transmission shaft 4, and the outer wall scraper 18 connected to the lower limit frame 16 through the fixing plate 17 will move in a circle around the primary water inlet pipe 8, and the impurities attached to the primary water inlet pipe 8 will be cleaned and removed, which can not only ensure the water quality entering the primary water inlet pipe 8, but also avoid the stirring blade 5 from fluctuating due to the change of the external environment during the rotation process, protect the normal operation of the stirring blade 5, and avoid the involvement of other objects. The medium required for the rotation of the stirring blade 5 is provided by the filter screen 13 and multiple water delivery holes 21 on the outer circumferential wall of the primary water inlet pipe 8, ensuring the amount of water required by the stirring blade 5. A plurality of hydrophobic guide blades 22 are provided on the inner wall of the primary water inlet pipe 8, and the kinetic energy water provided by the stirring blade 5 is transported to the secondary power pipe 9 along the hydrophobic guide blades 22. The secondary power pipe 9 is welded to the primary water inlet pipe 8 and the tertiary power pipe 10. The secondary power pipe 9 is a concentric reducer pipe, and a spiral acceleration blade 23 is provided on the secondary power pipe 9. The kinetic energy of the water is further compressed by the pipe diameter compression and the spiral acceleration blade 23, thereby increasing the flow rate and output kinetic energy of the water. Since the tertiary power tube 10 is a 90° elbow pipe, the running direction of water is changed through the tertiary power tube 10, and the vertical thrust is converted into horizontal thrust. A plurality of extension blades 24 are provided on the inner wall of the tertiary power tube 10, and the tertiary power tube 10 is welded to the compression tube 11, and the diameter of the compression tube 11 is further reduced to increase the flow rate and kinetic energy of the output water. At the same time, the high-pressure kinetic energy water inside the pipeline is sprayed out by expanding the injection port 12, so as to obtain a larger contact area with the water, thereby providing the required horizontal propulsion for the ship.

[0040] It can be seen that the utility model avoids the influence of ocean currents by vertically installing the equipment, and changes the horizontal installation of marine propulsion equipment to be constantly beaten by seawater, causing malfunction of the marine propeller and affecting navigation safety; due to the filter screen 13 and the outer wall scraper 18, it is difficult for organisms and solid debris in the water to enter the primary water inlet pipe 8 where the stirring blade 5 is located, thereby reducing the damage to the ecological environment in the water; the outer wall scraper 18 rotates with the transmission shaft 4 and makes a circular motion around the primary water inlet pipe 8, so that the water inlet holes on the outer walls of the primary water inlet pipe 8 remain unobstructed, further ensuring the normal operation of the stirring blade 5. The primary water inlet pipe 8 is connected to the secondary power pipe 9, and the inner diameter difference between the pipes is used to gradually increase the flow velocity and kinetic energy of the output medium to increase the driving force of the water. The vertical driving force is then smoothly converted into a horizontal driving force through the tertiary power pipe 10. Finally, the water flow in the pipe is strengthened and ejected through the compression pipe 11 and the enlarged injection port 12, thereby increasing the contact area with the water to provide the horizontal driving force required for the operation of the ship. At the same time, a spiral acceleration blade 23 is provided on the secondary power pipe 9 to convert the vertical downward water flow into a spiral water flow, which is output by the extension blade 24 to improve the driving efficiency of the pipeline water flow.

[0041] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0042] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A marine propulsion device, characterized in that: The invention comprises a power mechanism (1) and a duct mechanism (2); the power mechanism (1) comprises a suspension mounting frame (3), a transmission shaft (4) and a stirring blade (5); the duct mechanism (2) comprises a water inlet assembly (6) and a pressurized kinetic energy assembly (7); the water inlet assembly (6) comprises a primary water inlet pipe (8), a secondary power pipe (9) and a tertiary power pipe (10); the pressurized kinetic energy assembly (7) comprises a compression pipe (11) and an injection port (12); One end of the transmission shaft (4) is connected to the suspension mounting frame (3), and the other end of the transmission shaft (4) extends into the interior of the primary water inlet pipe (8), and the transmission shaft (4) extending into the interior of the primary water inlet pipe (8) is connected to the stirring blade (5) located inside the primary water inlet pipe (8); One end of the secondary power tube (9) is connected to the primary water inlet tube (8), one end of the tertiary power tube (10) is connected to the secondary power tube (9), the other end of the tertiary power tube (10) is connected to one end of the compression tube (11), and the other end of the compression tube (11) is connected to the injection port (12).

2. A marine propulsion device according to claim 1, characterized in that: It also comprises a filter screen (13) and an upper limit frame (14); the filter screen (13) is fixed to the end of the primary water inlet pipe (8), a rotating ring sleeve (15) is provided on the periphery of the filter screen (13), and the upper limit frame (14) is connected to the rotating ring sleeve (15).

3. A marine propulsion device according to claim 2, characterized in that: It also includes a lower limit frame (16), a fixing plate (17) and an outer wall scraper (18); the lower limit frame (16) passes through the gap of the upper limit frame (14); The fixing plate (17) is connected to the lower limiting frame (16), the fixing plate (17) is distributed along the outer wall of the primary water inlet pipe (8), and the outer wall scraper (18) is connected to the fixing plate (17).

4. A marine propulsion device according to claim 3, characterized in that: A first opening (19) is formed at the center of the upper limit frame (14), and a second opening (20) is formed at the center of the lower limit frame (16); The transmission shaft (4) extends from the first opening (19) and the second opening (20) into the interior of the primary water inlet pipe (8); the transmission shaft (4) drives the upper limit frame (14), the lower limit frame (16), the fixing plate (17) and the outer wall scraper (18) to rotate.

5. A marine propulsion device according to claim 1, characterized in that: Water delivery holes (21) are distributed on the annular wall of the primary water inlet pipe (8); and drainage guide blades (22) are distributed on the inner wall of the primary water inlet pipe (8) near one end of the secondary power pipe (9).

6. A marine propulsion device according to claim 5, characterized in that: The secondary power tube (9) is in the shape of an inverted truncated cone, and spiral acceleration blades (23) are distributed on the inner wall of the secondary power tube (9).

7. A marine propulsion device according to claim 6, characterized in that: The tertiary power tube (10) uses a 90° elbow pipe fitting to change the direction of water flow in the secondary power tube (9).

8. A marine propulsion device according to claim 7, characterized in that: A plurality of extended blades (24) are distributed on the inner wall of the tertiary power tube (10).

9. A marine propulsion device according to claim 8, characterized in that: The tertiary power tube (10) and the compression tube (11) are welded, and the caliber of the outlet end of the compression tube (11) is smaller than the caliber of the inlet end of the compression tube (11).

10. A marine propulsion device according to claim 9, characterized in that: The outlet port diameter of the injection port (12) is larger than the inlet port diameter of the injection port (12).

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