Prow propeller

Abstract

The utility model relates to a prow thruster which comprises a motor, a mounting cylinder, a transmission shaft, a propeller and a water guide cylinder. The mounting cylinder is fixedly arranged at the lower end of the mounting seat; the output end of the motor downwards penetrates through the mounting cylinder and extends into the mounting cylinder; the transmission shaft is rotatably arranged in the mounting cylinder, and the upper end part of the transmission shaft is connected with the output end of the motor through a coupler; the propeller is arranged in the mounting cylinder and is connected with the lower end part of the transmission shaft; the middle of the water guide cylinder is fixedly embedded into the lower end of the mounting cylinder, the water guide cylinder communicates with the lower end of the mounting cylinder, and the end of the propeller is located in the water guide cylinder. Compared with the prior art, the service life can be prolonged, and the ship can sail more stably.

Description

Technical Field

[0001] This utility model relates to the field of propulsion technology, and more specifically, to a bow propulsion device. Background Technology

[0002] A bow thruster, also known as a bow thruster, is a special type of propulsion device installed at the bow of a ship to improve its maneuverability. The bow thruster generates thrust through the rotation of a propeller. As the propeller rotates, it pushes water backward or forward. According to Newton's third law, the water exerts a reaction force on the propeller, propelling the ship laterally.

[0003] However, existing bow thrusters still have some shortcomings in practical applications; for example, if debris gets into the propeller, it can easily damage the propeller; and since the water guide tube and propeller are underwater, the resistance is high and the stability is poor during turning. Therefore, it is necessary to solve these problems. Utility Model Content

[0004] The present invention aims to at least partially solve one of the aforementioned technical problems in the prior art. Therefore, one objective of the present invention is to provide a bow thruster that can extend its service life and make ship navigation more stable.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A bow thruster, comprising:

[0006] The motor is fixedly mounted on the mounting base;

[0007] The mounting cylinder is fixedly placed at the lower end of the mounting base, and the output end of the motor extends downward through the mounting cylinder into the mounting cylinder;

[0008] A drive shaft is rotatably placed inside the mounting cylinder, and the upper end of the drive shaft is connected to the output end of the motor via a coupling.

[0009] A propeller, which is placed inside the mounting cylinder and connected to the lower end of the drive shaft;

[0010] A water guide tube is fixedly embedded in the lower end of the mounting tube at its middle part, and the water guide tube is connected to the lower end of the mounting tube. The end of the propeller is located inside the water guide tube.

[0011] The beneficial effects of this utility model are: the water guide tube can prevent the propeller from colliding with the riverbed and avoid damage to the propeller. It can also protect the propeller, reduce the amount of debris entangled in the propeller, extend the service life of the propeller, and make the ship sail more smoothly.

[0012] Based on the above technical solution, the present invention can be further improved as follows.

[0013] Furthermore, it also includes:

[0014] A fixing sleeve is fitted onto the upper end of the mounting cylinder and is fixedly connected to the mounting base.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the mounting cylinder is limited and fixed by the fixing sleeve, making the mounting cylinder more stable and extending the service life of the thruster.

[0016] Furthermore, it also includes:

[0017] A limiting sleeve is placed inside the mounting cylinder and is fixedly connected to the inner wall of the mounting cylinder; a bearing is fixedly installed inside the limiting sleeve and is mounted on the transmission shaft.

[0018] The beneficial effects of adopting the above-mentioned further solution are: using the bearing inside the limiting sleeve to limit and support the drive shaft makes the drive shaft more stable during rotation, makes the drive shaft more adaptable to high-speed rotation, and extends the service life of the drive shaft.

[0019] Furthermore, it also includes:

[0020] A sealing plate is fitted onto a drive shaft, which is rotatably connected to the sealing plate. The sealing plate is sealed and fixedly connected to the inner wall of the mounting cylinder, and is positioned below the limiting sleeve.

[0021] The beneficial effects of adopting the above-mentioned further solution are: using the sealing plate to protect the limiting sleeve, bearing and coupling inside the installation cylinder, reducing the corrosion of the limiting sleeve, bearing and coupling by seawater or river water, and extending the service life.

[0022] Furthermore, it also includes:

[0023] A filter screen is fixedly placed at the inlet of the water guide cylinder. The filter screen has a funnel-shaped structure, and the tip of the filter screen is away from the water guide cylinder.

[0024] The beneficial effects of adopting the above-mentioned further solutions are: the filter screen can filter the incoming water flow, reduce the amount of debris entering the water guide tube and causing blockage or entanglement of the propeller, avoid damage to the propeller, extend its service life, and make the ship sail more smoothly; the filter screen is funnel-shaped, which can prevent debris from being retained or entangled on the filter screen and avoid affecting the efficiency of the water guide tube in guiding the water flow.

[0025] Furthermore, it also includes:

[0026] A guide plate is fixedly placed on the water guide cylinder, and the guide plate is located at the outlet of the water guide cylinder.

[0027] The beneficial effects of adopting the above-mentioned further solutions are: the deflector can resist the interference of the flow on the movement of the propeller, making the ship sail more smoothly, with less resistance, and ensuring the safety and comfort of the ship's navigation.

[0028] Furthermore, the outlet of the water guide tube is funnel-shaped, and the inner diameter of the outlet of the water guide tube is larger than the inner diameter of its inlet.

[0029] The beneficial effects of adopting the above-mentioned further solutions are: it can make the water flow out of the water guide tube more evenly dispersed, reduce the impact of the water flow, reduce the impact of the reaction force of river water or seawater on the ship, and make the ship sail more smoothly; it can also make the water guide tube less prone to clogging and easier to clean and maintain. Attached Figure Description

[0030] Figure 1 This is a front view of a bow thruster according to the present invention;

[0031] Figure 2 This is a cross-sectional view of a bow thruster according to the present invention.

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 1. Motor, 2. Mounting base, 3. Mounting cylinder, 4. Drive shaft, 5. Coupling, 6. Propeller, 7. Water guide tube, 8. Fixing sleeve, 9. Limiting sleeve, 10. Bearing, 11. Sealing plate, 12. Filter screen, 13. Guide plate. Detailed Implementation

[0034] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0035] like Figure 1 and Figure 2 As shown, a bow thruster includes:

[0036] Motor 1, which is fixedly mounted on mounting base 2;

[0037] Mounting cylinder 3, which is fixedly placed at the lower end of mounting base 2, and the output end of motor 1 extends downward through mounting cylinder 3 into mounting cylinder 3;

[0038] A drive shaft 4 is rotatably placed inside the mounting cylinder 3, and the upper end of the drive shaft 4 is connected to the output end of the motor 1 via a coupling 5.

[0039] Propeller 6, which is placed inside the mounting cylinder 3, and is connected to the lower end of the drive shaft 4;

[0040] A water guide tube 7 is fixedly embedded in the lower end of the mounting tube 3 at its middle part, and the water guide tube 7 is connected to the lower end of the mounting tube 3. The end of the propeller 6 is located inside the water guide tube 7.

[0041] In a specific application of this embodiment, the output end of the motor 1 drives the transmission shaft 4 to rotate inside the mounting cylinder 3. During the rotation of the transmission shaft 4, the propeller 6 is driven to rotate. During the rotation of the propeller 6, the water in the water guide cylinder 7 is pushed to achieve ship navigation.

[0042] In this embodiment, when the ship is traveling at low speed, during operations such as entering and leaving the port and berthing at the dock, a lateral thrust can be generated at the bow, allowing the ship to make more precise small-angle turns and translations, better control the ship's position and course, and improve operational flexibility. The water guide tube 7 can prevent the propeller 6 from colliding with the riverbed, avoid damage to the propeller 6, and also protect the propeller 6, reduce the amount of debris entangled in the propeller 6, extend the service life of the propeller, and make the ship sail more smoothly.

[0043] The above embodiments also include:

[0044] A fixing sleeve 8 is fitted onto the upper end of the mounting cylinder 3 and is fixedly connected to the mounting base 2.

[0045] In this specific application, the fixing sleeve 8 is used to limit and fix the mounting cylinder 3, making the mounting cylinder 3 more stable and extending the service life of the thruster.

[0046] The above embodiments also include:

[0047] A limiting sleeve 9 is placed inside the mounting cylinder 3 and is fixedly connected to the inner wall of the mounting cylinder 3; a bearing 10 is fixedly installed inside the limiting sleeve 9 and is mounted on the transmission shaft 4.

[0048] In a specific application of this embodiment, the bearing 10 inside the limiting sleeve 9 provides limiting support for the transmission shaft 4, making the transmission shaft 4 more stable during rotation, making the transmission shaft 4 more adaptable to high-speed rotation, and extending the service life of the transmission shaft 4.

[0049] The above embodiments also include:

[0050] The sealing plate 11 is fitted onto the drive shaft 4, and the drive shaft 4 is rotatably connected to the sealing plate 11. The sealing plate 11 is sealed and fixedly connected to the inner wall of the mounting cylinder 3, and the sealing plate 11 is located below the limiting sleeve 9.

[0051] In this specific application, the sealing plate 11 is used to seal the middle and upper part of the mounting cylinder 3, protecting the limiting sleeve 9, bearing 10 and coupling 5 inside the mounting cylinder 3, reducing the corrosion of the limiting sleeve 9, bearing 10 and coupling 5 by seawater or river water, and extending their service life.

[0052] The above embodiments also include:

[0053] The filter screen 12 is fixedly placed at the inlet of the water guide cylinder 7. The filter screen 12 has a funnel-shaped structure, and the tip of the filter screen 12 is away from the water guide cylinder 7.

[0054] In a specific application of this embodiment, when water is introduced into the inlet of the water guide tube 7, the filter screen 12 can filter the incoming water flow, reducing the amount of debris entering the water guide tube 7 and causing blockage or entanglement of the propeller 6, thus preventing damage to the propeller 6, extending its service life, and making the ship's navigation more stable. The filter screen 12 is funnel-shaped, which can prevent debris from being retained or entangled on the filter screen 12 during ship navigation, thus avoiding affecting the efficiency of the water guide tube 7 in introducing water.

[0055] The above embodiments also include:

[0056] A guide plate 13 is fixedly placed on the water guide cylinder 7 and is located at the outlet of the water guide cylinder 7.

[0057] In a specific application of this embodiment, the guide vane 13 can resist the interference of the flow on the movement of the propeller, making the ship's navigation more stable, reducing resistance, and ensuring the safety and comfort of the ship's navigation.

[0058] In the above embodiments, the outlet of the water guide tube 7 is funnel-shaped, and the inner diameter of the outlet of the water guide tube 7 is larger than the inner diameter of its inlet.

[0059] The inner diameter of the outlet of the water guide tube 7 is larger than the inner diameter of its inlet, which can make the water flow from the water guide tube 7 more evenly dispersed, reduce the impact of the water flow, reduce the impact of the reaction force of river water or seawater on the ship, and make the ship sail more smoothly; it can also make the water guide tube 7 less prone to clogging and easier to clean and maintain.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bow thruster, characterized in that, include: The motor is fixedly mounted on the mounting base; The mounting cylinder is fixedly placed at the lower end of the mounting base, and the output end of the motor extends downward through the mounting cylinder into the mounting cylinder; A drive shaft is rotatably placed inside the mounting cylinder, and the upper end of the drive shaft is connected to the output end of the motor via a coupling. A propeller, which is placed inside the mounting cylinder and connected to the lower end of the drive shaft; A water guide tube is fixedly embedded in the lower end of the mounting tube at its middle part, and the water guide tube is connected to the lower end of the mounting tube. The end of the propeller is located inside the water guide tube.

2. The bow thruster according to claim 1, characterized in that, Also includes: A fixing sleeve is fitted onto the upper end of the mounting cylinder and is fixedly connected to the mounting base.

3. The bow thruster according to claim 1, characterized in that, Also includes: A limiting sleeve is placed inside the mounting cylinder and is fixedly connected to the inner wall of the mounting cylinder; a bearing is fixedly installed inside the limiting sleeve and is mounted on the transmission shaft.

4. The bow thruster according to claim 3, characterized in that, Also includes: A sealing plate is fitted onto a drive shaft, which is rotatably connected to the sealing plate. The sealing plate is sealed and fixedly connected to the inner wall of the mounting cylinder, and is positioned below the limiting sleeve.

5. The bow thruster according to claim 1, characterized in that, Also includes: A filter screen is fixedly placed at the inlet of the water guide cylinder. The filter screen has a funnel-shaped structure, and the tip of the filter screen is away from the water guide cylinder.

6. The bow thruster according to claim 1, characterized in that, Also includes: A guide plate is fixedly placed on the water guide cylinder, and the guide plate is located at the outlet of the water guide cylinder.

7. The bow thruster according to claim 1, characterized in that, The outlet of the water guide tube is funnel-shaped, and the inner diameter of the outlet is larger than the inner diameter of the inlet.

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