A fully rotating outboard propeller

Abstract

The present invention discloses a fully rotatable outboard propeller, belonging to a water propeller, which comprises an outboard connecting plate, a transmission module, a rotation module and a propulsion module; one end face of the outboard connecting plate is connected to the stern side plate of a ship; the overall structure composed of the transmission module, the rotation module and the propulsion module is connected to the other end face of the outboard connecting plate; the transmission module includes a driving motor a, a transmission shaft a and a transmission shaft b; the propulsion module includes a propeller and a transmission shaft c; the driving motor a drives the propeller to rotate around its own axis through the transmission shaft a, the transmission shaft b and the transmission shaft c; the rotation module is installed on the housing of the transmission module, and the rotation module is used to drive the propeller to perform a 360° full rotation around the axis of the bevel gear c. Through the mechanical drive of the rotation module, the present invention realizes the full rotation of the outboard propeller, enables the thrust direction of the propeller to be adjusted timely within a range of 360°, and can quickly and accurately adjust the position of the platform and the ship.

Description

Technical Field

[0001] The present invention belongs to the technical field of water thrusters, and particularly relates to a fully rotatable outboard thruster. Background Art

[0002] When water engineering platforms, ships, etc. are operating on water, it is necessary to adjust the positions of the platforms and ships in a timely manner. The movement of a ship's position on water is mainly achieved by generating water thrust with a water thruster (propeller), and changing the direction of the propeller to achieve a change in the thrust direction. The direction of a conventional outboard engine propeller can only be adjusted within a certain angle (±35°) on both sides of the ship's side, resulting in certain limitations when adjusting the position of water engineering platforms, ships, etc. on water, and there is a certain degree of difficulty in adjustment.

[0003] The fully rotatable thrusters currently used in ships and water engineering platforms mainly include the podded propeller thruster form of ships and centrifugal water jet thrusters, etc. The podded propeller thruster and centrifugal water jet thruster of the ship achieve full rotation by being installed at the bottom of the ship (platform).

[0004] As a common form of ship thruster, the outboard thruster is mainly applied to various medium and small ships and water engineering platforms, and has the advantages of simple structure, convenient installation and maintenance, etc. The rotation of the existing outboard thruster is achieved by the simultaneous rotation of all components except the connecting plate. Therefore, the rotation range of the thruster is limited, that is, the thrust can only be adjusted within the range of ±35°, and the form of a fully rotatable thruster cannot be achieved, which limits the exertion of its functions. When a ship is moving backward, the thruster needs to provide backward power. However, the thrust range of the propeller of the existing outboard thruster is limited, and it can only be achieved by reversing the rotation of the propeller. The reverse rotation of the propeller reduces the propulsion efficiency by about 50%. Therefore, a fully rotatable outboard thruster is needed that can quickly and accurately adjust the position within 360°. Summary of the Invention

[0005] In view of this, the present invention provides a fully rotatable outboard thruster, which realizes the full rotation of the outboard thruster through the mechanical drive of the rotation module, enables the thrust direction of the propeller to be adjusted in a timely manner within 360°, and can quickly and accurately adjust the positions of the platform and the ship.

[0006] The present invention is realized by the following technical solutions:

[0007] A fully rotatable outboard thruster includes: an outboard connecting plate, a transmission module, a rotation module, and a propulsion module;

[0008] One end face of the outboard connecting plate is connected to the ship's stern side plate; the overall structure composed of the transmission module, the rotation module, and the propulsion module is connected to the other end face of the outboard connecting plate;

[0009] The transmission module includes a driving motor a, a transmission shaft a, a bevel gear a, a bevel gear b, a bevel gear c, and a transmission shaft b; one end of the transmission shaft a is coaxially connected to the output shaft of the driving motor a, and the other end of the transmission shaft a passes through the outboard connecting plate and is coaxially installed with a bevel gear a;

[0010] The axis of the transmission shaft b is perpendicular to that of the transmission shaft a; the bevel gear b and the bevel gear c are respectively coaxially connected to both ends of the transmission shaft b; the bevel gear b meshes with the bevel gear a;

[0011] The propulsion module includes a propeller, a transmission shaft c, and a bevel gear d; the bevel gear d meshes with the bevel gear c; the bevel gear d and the propeller are respectively coaxially connected to both ends of the transmission shaft c; the driving motor a drives the propeller to rotate around its own axis through the transmission shaft a, the transmission shaft b, and the transmission shaft c;

[0012] The slewing module is installed on the housing of the transmission module, and the transmission shaft c of the propeller is connected to the slewing module through a connecting component. The slewing module is used to drive the propeller to perform a 360° full slewing around the axis of the bevel gear c.

[0013] Further, the slewing module includes a worm gear, a worm, and a driving motor b; one end of the worm is connected to the output shaft of the driving motor b;

[0014] The worm meshes with the worm gear; the worm gear is coaxial with the bevel gear c, and a through hole c is machined in the center of the worm gear. The transmission shaft b equipped with the bevel gear c passes through the through hole c;

[0015] The transmission shaft c of the propeller is connected to the bottom of the worm gear through a connecting component.

[0016] Further, the outboard connecting plate and the overall structure are connected by a pin shaft, and the overall structure can rotate around the axis of the pin shaft.

[0017] Further, the thruster further includes an oil cylinder; one end of the oil cylinder is connected to the outboard connecting plate and the other end is connected to the overall structure. The overall structure is flipped up and down around the axis of the pin shaft through the telescoping of the oil cylinder; the flipping angle range is 0° to 60°.

[0018] Further, a clutch is installed between the output shaft of the driving motor a and the transmission shaft a.

[0019] Further, a propeller protection cover is installed on the propulsion module and is located outside the propeller.

[0020] Beneficial effects:

[0021] (1) A full-rotation outboard propeller of the present invention includes an outboard connecting plate, a transmission module, a rotation module, and a propulsion module. The rotation module is connected to the housing of the transmission module, and the transmission shaft c of the propeller is connected to the rotation module through a connecting component. The propeller is driven by the rotation module to rotate around the axis of the bevel gear c, realizing 360° full rotation.

[0022] (2) A full-rotation outboard propeller of the present invention, the rotation module includes a worm gear and a worm. The propeller uses the mechanical transmission method of the worm gear and worm to realize the full rotation of the propulsion module. Because the mechanical transmission method of the worm gear and worm has self-locking property, its safety performance is high and the control is simple, which can overcome the inconvenience during ship operation to a certain extent; it only takes 4-5 seconds for the worm gear in the rotation module to rotate one week, which can quickly and accurately adjust the position of the platform and the ship, and can improve the use efficiency of the propeller.

[0023] (3) A full-rotation outboard propeller of the present invention, the outboard connecting plate is connected to the overall structure through a pin shaft. The propeller further includes an oil cylinder, one end of the oil cylinder is connected to the outboard connecting plate, and the other end is connected to the overall structure. Through the telescopic movement of the oil cylinder, the overall structure is flipped around the axis of the pin shaft, so that the propeller can be applicable to waters of different sizes. In addition, the oil cylinder can maintain the flipping angle.

[0024] (4) A full-rotation outboard propeller of the present invention, a clutch is installed between the output shaft of the driving motor a and the transmission shaft a. The propeller can engage or disengage the power transmission through the clutch, and can control the rotation or stop of the propeller at any time.

[0025] (5) A full-rotation outboard propeller of the present invention, a propeller protection cover is installed on the propulsion module, which can prevent foreign objects from damaging the propeller. Brief Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of the present invention;

[0027] Figure 2 is a schematic internal structure diagram of the rotation module of the present invention;

[0028] Among them, 1 - outboard connecting plate, 2 - transmission module, 3 - rotation module, 301 - worm gear, 302 - worm, 303 - driving motor b, 4 - propulsion module, 401 - propeller, 402 - propeller protection cover, 403 - support housing c. Detailed Embodiment

[0029] The following combines the drawings and gives embodiments to describe the present invention in detail.

[0030] This embodiment provides a full-rotation outboard propeller, as Figure 1As shown in the figure, the thruster includes: an outboard connecting plate 1, a transmission module 2, a slewing module 3, and a propulsion module 4;

[0031] A through hole a is machined on the outboard connecting plate 1; one end face of the outboard connecting plate 1 is fixedly connected to the ship's stern plate; the outboard connecting plate 1 is at a certain angle relative to the horizontal plane and can fit with the ship's stern plate; the other end face of the outboard connecting plate 1 is connected to the transmission module 2;

[0032] The transmission module 2 includes a driving motor a, a transmission shaft a, a bevel gear a, two bevel gears, and a transmission shaft b; the outboard thruster is driven by the driving motor a; the transmission shaft a is connected to the output shaft of the driving motor a; a clutch is installed between the output shaft of the driving motor a and the transmission shaft a for engaging or disconnecting power transmission; a bevel gear a is installed at the end of the transmission shaft a; the transmission shaft a passes through the through hole a; the transmission shaft b is perpendicular to the axis of the transmission shaft a; let the two bevel gears be bevel gear b and bevel gear c; the bevel gear b is coaxially connected to the top end of the transmission shaft b, and the bevel gear c is coaxially connected to the bottom end of the transmission shaft b;

[0033] The transmission shaft b and the bevel gear b are surrounded and supported by a support housing a; the support housing a is an inverted L-shaped columnar structure; the transmission shaft a passes through the short side of the L shape, and the bevel gear a on the transmission shaft a meshes with the bevel gear b; the short side of the L shape is connected to the other end of the outboard connecting plate 1 by a pin shaft; an oil cylinder is also installed between the support housing a and the outboard connecting plate 1, one end of the oil cylinder is connected to the outboard connecting plate 1, and the other end is connected to the side wall of the support housing a and is located below the short side of the L shape. By the telescoping of the oil cylinder, the overall structure composed of the transmission module 2, the slewing module 3, and the propulsion module 4 can be turned up and down around the axis of the pin shaft; in this embodiment, the flipping angle range is 0° to 60°; the bottom end of the support housing a is connected and fixed to the slewing module 3 through a connecting component;

[0034] As Figure 2 As shown in the figure, the slewing module 3 includes a worm gear 301, a worm 302, a driving motor b 303, and a support housing b; the output shaft of the driving motor b 303 is connected to one end of the worm 302 for driving the worm 302 to rotate; the worm 302 meshes with the worm gear 301; the worm gear 301 is coaxial with the bevel gear c, and an inner hole is machined in the center of the worm gear 301, and the transmission shaft a with the bevel gear b passes through the inner hole to the inside of the propulsion module 4; the driving motor b 303, the worm 302, and the worm gear 301 are surrounded by the support housing b; through holes b and c are respectively machined at the upper and lower ends of the support housing b; the periphery of the through hole b at the upper end of the support housing b is connected to the bottom end of the long side of the L shape of the support housing a;

[0035] The propulsion module 4 includes a propeller 401, a transmission shaft c, a bevel gear d, and a propeller guard 402; the bevel gear d meshes with the bevel gear c; let the axis of the bevel gear c be the y-axis and the axis of the bevel gear d be the x-axis; one end of the transmission shaft c is coaxially connected to the bevel gear d, and the other end is coaxially connected to the propeller 401, and the rotation of the propeller 401 around the x-axis is achieved through the transmission of the bevel gear c; the transmission shaft b, the bevel gear c, the bevel gear d, the transmission shaft c, and the propeller 401 are surrounded and supported by a connecting component support housing c403; the transmission shaft c is supported on the support housing c403 through bearings;

[0036] The transmission shaft c connected to the bevel gear d and the propeller 401 is connected to the slewing module 3 through a connecting component; the connecting component is the housing c403; the transmission shaft c is supported on the housing c403 through bearings; the support housing c403 passes through the through hole c at the lower end of the support housing b and is fixedly connected to the bottom of the worm gear 301. As the worm gear 301 rotates, the propeller 401 can achieve a 360° full slewing around the y-axis. At this time, the bevel gear d and the transmission shaft c also rotate simultaneously, and the bevel gear d rotates around the axis of the bevel gear c;

[0037] The propeller guard 402 is installed on the support housing c403 and is located outside the support housing c403, which can prevent foreign objects from damaging the propeller 401;

[0038] The drive motor a, the drive motor b303, and the clutch are all controlled by a control box.

[0039] Working principle: Start the drive motor a, and the drive motor a drives the propeller 401 to rotate around the x-axis through the transmission shaft a and the transmission module 2; start the drive motor b303, the output shaft of the drive motor b303 drives the worm 302 to rotate, the worm 302 drives the worm gear to rotate, and the 360° full slewing of the propulsion module 4 around the y-axis is achieved through the rotation of the worm gear.

[0040] In summary, the above is only a preferred embodiment of the present invention and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An all-round rotating outboard propeller, characterized in that, The thruster includes: an outboard connecting plate, a transmission module, a slewing module, and a propulsion module; One end face of the outboard connecting plate is connected to the ship's aft side plate; the overall structure composed of the transmission module, the slewing module, and the propulsion module is connected to the other end face of the outboard connecting plate; The transmission module includes a driving motor a, a transmission shaft a, a bevel gear a, a bevel gear b, a bevel gear c, and a transmission shaft b; one end of the transmission shaft a is coaxially connected to the output shaft of the driving motor a, and the other end of the transmission shaft a passes through the outboard connecting plate and is coaxially equipped with a bevel gear a; The axis of the transmission shaft b is perpendicular to the axis of the transmission shaft a; the bevel gear b and the bevel gear c are respectively coaxially connected to both ends of the transmission shaft b; the bevel gear b meshes with the bevel gear a; The propulsion module includes a propeller, a transmission shaft c, and a bevel gear d; the bevel gear d meshes with the bevel gear c; the bevel gear d and the propeller are respectively coaxially connected to both ends of the transmission shaft c; the driving motor a drives the propeller to rotate around its own axis through the transmission shaft a, the transmission shaft b, and the transmission shaft c; The slewing module is installed on the housing of the transmission module, and the transmission shaft c of the propeller is connected to the slewing module through a connecting component, and the slewing module is used to drive the propeller to perform a 360° full slewing around the axis of the bevel gear c; The slewing module includes a worm gear, a worm, and a driving motor b; one end of the worm is connected to the output shaft of the driving motor b; The worm meshes with the worm gear; the worm gear is coaxial with the bevel gear c, and a through hole c is machined in the center of the worm gear, and the transmission shaft b equipped with the bevel gear c passes through the through hole c; The transmission shaft c of the propeller is connected to the bottom of the worm gear through a connecting component; A clutch is installed between the output shaft of the driving motor a and the transmission shaft a.

2. The all-round rotating outboard propeller according to claim 1, characterized in that, The outboard connecting plate and the overall structure are connected by a pin shaft, and the overall structure can rotate around the axis of the pin shaft.

3. The all-round rotating outboard propeller according to claim 2, characterized in that, The thruster further includes an oil cylinder; one end of the oil cylinder is connected to the outboard connecting plate and the other end is connected to the overall structure, and the overall structure is turned up and down around the axis of the pin shaft by the telescopic movement of the oil cylinder; the turning angle range is 0° to 60°.

4. The all-round rotating outboard propeller according to claim 1, characterized in that, A propeller guard is installed on the propulsion module and is located outside the propeller.

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