Ship spiral efficient propelling system

Abstract

The invention discloses a ship spiral efficient propelling system which comprises a framework, a pair of connecting plates are fixedly installed on the two sides of the framework respectively, cylindrical shells are connected to the two pairs of connecting plates respectively, spiral blades are rotationally installed in the two pairs of cylindrical shells respectively, and the thread pitch of the spiral blades is gradually increased from front to back. A support is fixedly installed at one end of the cylindrical shell, and a driving mechanism is installed on the support. After the propeller is powered on, the driving motor rotates to drive the spiral blade to rotate, the spiral blade exerts acting force on water, the counter-acting force pushes a ship to advance, and according to the statics principle, the screw pitch is not equal, so that the ship is driven to move forwards; the front thread pitch is small and gradually increased backwards, so that larger thrust is generated, the spiral propelling efficiency is high, and the noise is small.

Description

Technical Field

[0001] The present invention relates to the technical field of thrusters, and specifically to a high-efficiency ship screw propulsion system. Background Art

[0002] The structure of each blade of the existing screw propeller is the same. By rotating and pushing water backward, it achieves the effect of moving forward. However, the problem is that each identical blade needs to overcome a large amount of water resistance during rotation, resulting in low power conversion efficiency, and generating relatively large noise during the process of pushing water. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the present invention provides a high-efficiency ship screw propulsion system, which solves the problems of low power conversion efficiency and relatively large noise of each identical blade of the existing screw propeller.

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A high-efficiency ship screw propulsion system includes a framework. On both sides of the framework, a pair of connecting plates are respectively and fixedly installed. On the two pairs of connecting plates, cylindrical shells are respectively connected. Inside the two pairs of cylindrical shells, screw blades are respectively rotatably installed. The pitch of the screw blades gradually increases from front to back. One end of the cylindrical shell is fixedly installed with a bracket, and a driving mechanism is installed on the bracket.

[0005] Preferably, the driving mechanism includes a conical cap installed on the bracket. Inside the conical cap, a driving motor is installed. On the driving end of the driving motor, a coupling is installed. One end of the coupling is connected with a rotating shaft, and the rotating shaft is fixedly inserted into the screw blade.

[0006] Preferably, a pair of second brackets are installed at both ends inside the cylindrical shell, and the rotating shaft is rotatably installed on the pair of second brackets.

[0007] The present invention provides a high-efficiency ship screw propulsion system, which has the following beneficial effects: The driving motor is coaxial with the screw blade. After being powered on, the driving motor rotates and drives the screw blade to rotate through rotation. The screw blade exerts a force on the water, and its reaction force pushes the ship forward. According to the principle of statics, the pitch is not equidistant, but the front pitch is small and gradually increases backward, thereby generating a greater thrust, with high screw propulsion efficiency and low noise. Description of the Drawings

[0008] Figure 1 It is a structural schematic diagram of the present invention.

[0009] In the figure: 1. Framework; 2. Conical cap; 3. Driving motor; 4. Cylindrical shell; 5. Screw blade; 6. Rotating shaft; 7. Coupling; 8. Connecting plate; 9. Second bracket. Detailed Embodiment

[0010] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0011] Please refer to Figure 1 , the present invention provides a technical solution: a ship spiral efficient propulsion system, including a framework 1, on both sides of the framework 1, a pair of connecting plates 8 are respectively fixedly installed, on the two pairs of connecting plates 8, cylindrical outer shells 4 are respectively connected, inside the two pairs of cylindrical outer shells 4, spiral blades 5 are respectively rotatably installed, the pitch of the spiral blades 5 gradually increases from front to back, one end of the cylindrical outer shell 4 is fixedly installed with a bracket, and a driving mechanism is installed on the bracket;

[0012] The spiral blade 5 rotates inside the cylindrical outer shell 4, and the overall movement is realized by pushing water. Since the pitch of the spiral blade 5 gradually increases from front to back, a greater thrust is generated.

[0013] Further, the driving mechanism includes a conical cap 2 installed on the bracket, a driving motor 3 is installed inside the conical cap 2, a coupling 7 is installed on the driving end of the driving motor 3, one end of the coupling 7 is connected to a rotating shaft 6, and the rotating shaft 6 is fixedly inserted into the spiral blade 5;

[0014] The driving end of the driving motor 3 is rotatably installed on the outer wall of the conical cap 2 and is connected to the rotating shaft 6 through a coupling. A sealing bearing is provided between the driving end and the outer wall to prevent water from entering the driving motor 3. This structure belongs to conventional technical means, and the sealing bearing also belongs to the existing mature technology. Therefore, the specific structure and usage method of the sealing bearing do not need to be introduced in detail.

[0015] Further, a pair of second brackets 9 are installed at both ends inside the cylindrical outer shell 4, and the rotating shaft 6 is rotatably installed on the pair of second brackets 9.

[0016] Through those skilled in the art, the components in this case are connected in sequence. For the specific connection and operation sequence, reference should be made to the following working principle. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process.

[0017] Embodiment: The framework 1 is installed at the bottom of the draft line of the ship. A pair of screw propellers are arranged on each of the two sides underwater. The two pairs of screw propellers play a very good balancing role in the ship's forward movement, thus increasing the power and speed. When the ship is moving forward normally, both the left and right screw propellers are turned on, and the ship moves in a straight line. When turning left, the left propeller stops working and the right propeller works to push the ship to turn left. Similarly, when turning right, the right propeller stops working and the left propeller pushes the ship to turn right. When moving backward, the motor can be reversed (just change the direction of the current) for the double propellers to generate a thrust in the forward direction of the ship, so as to achieve the purpose of moving backward. The design of its control system is relatively simple.

[0018] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation. An element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0019] 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 principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. High-efficiency marine propeller propulsion system, including a skeleton (1), characterized in that: On both sides of the said framework (1), a pair of connecting plates (8) are fixedly installed respectively. On the two pairs of said connecting plates (8), cylindrical outer shells (4) are respectively connected. Inside the two pairs of said cylindrical outer shells (4), spiral blades (5) are respectively rotatably installed. The pitch of the threads of the spiral blades (5) gradually increases from front to back. One end of the said cylindrical outer shell (4) is fixedly installed with a bracket, and a driving mechanism is installed on the bracket.

2. The ship's screw high-efficiency propulsion system according to claim 1, characterized in that, The said driving mechanism includes a conical cap (2) installed on the bracket. Inside the conical cap (2), a driving motor (3) is installed. On the driving end of the driving motor (3), a coupling (7) is installed. One end of the coupling (7) is connected with a rotating shaft (6), and the rotating shaft (6) is fixedly inserted into the spiral blade (5).

3. The ship's screw high-efficiency propulsion system according to claim 2, characterized in that, At both ends inside the said cylindrical outer shell (4), a pair of second brackets (9) are installed, and the rotating shaft (6) is rotatably installed on the pair of second brackets (9).

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