CN219154724U

CN219154724U - Marine rudder efficiency enhancing device

Info

Publication number: CN219154724U
Application number: CN202223251634.3U
Authority: CN
Inventors: 张晓飞; 张建斐; 贾倩倩; 曹瑞
Original assignee: Army Military Transportation University of PLA Zhenjiang
Current assignee: Army Military Transportation University of PLA Zhenjiang
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-06-09
Anticipated expiration: 2032-12-06

Abstract

The utility model discloses a marine rudder performance enhancing device, which comprises a rudder blade main body, wherein the rudder blade main body is provided with a movable cylinder and a mounting hole for mounting the movable cylinder, the movable cylinder and the hole wall of the mounting hole form a sealed cavity, and two ends of the movable cylinder are in sliding connection with the hole wall of the mounting hole; the cavity is internally provided with a rotating shaft for driving the movable cylinder to rotate, a motor for driving the rotating shaft to rotate and a power supply for supplying power to the motor, and two ends of the rotating shaft are rotationally connected with the wall of the mounting hole. The utility model has simple structure and small space occupation, and can effectively improve the steering operability of the ship.

Description

Marine rudder efficiency enhancing device

Technical Field

The utility model belongs to the technical field of ships, and relates to a marine rudder efficiency enhancing device.

Background

At present, a ship usually adopts steering to change the course in the sailing process, and the principle is that a rudder blade deflects to form a certain included angle with the water flow direction, pressure difference is generated at two sides of the rudder blade, and the acting force is transmitted to the ship body through a rudder stock to form a ship turning moment. According to the knowledge of fluid mechanics, the ship turning moment is closely related to the attack angle and the incoming flow speed of the rudder blade, the maximum rudder angle limit exists in the rotation process of the rudder blade, the rudder efficiency is poor when the ship speed is low, and the operability of the ship in short-distance emergency steering danger avoidance or low-speed berthing is affected. In addition, in shallow waters of the inland, the rudder blade size of the ship is limited by the draft, which also affects the handling performance of the ship.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a marine rudder efficiency enhancing device which has a simple structure and small space occupation and can effectively improve the steering operability of a ship.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:

the marine rudder performance enhancing device comprises a rudder blade main body, wherein a movable cylinder and a mounting hole for mounting the movable cylinder are arranged on the rudder blade main body, a sealing cavity is formed between the movable cylinder and the hole wall of the mounting hole, and two ends of the movable cylinder are in sliding connection with the hole wall of the mounting hole; the cavity is internally provided with a rotating shaft for driving the movable cylinder to rotate, a motor for driving the rotating shaft to rotate and a power supply for supplying power to the motor, and two ends of the rotating shaft are rotationally connected with the wall of the mounting hole.

Optionally, a driven shaft for shaping the movable cylinder is arranged in the cavity, two ends of the driven shaft are respectively and rotatably connected with the hole wall of the mounting hole, and the shaft wall of the driven shaft is in rolling connection with the inner cylinder wall of the movable cylinder.

Optionally, a driving gear is arranged on an output shaft of the motor, a connecting gear is arranged on the rotating shaft sleeve, and the driving gear is meshed with the connecting gear.

Optionally, the rotation axis is gone up the cover and is equipped with the driving gear, and the inside wall of activity section of thick bamboo is equipped with and driving gear assorted rack, and driving gear and rack meshing are connected.

Optionally, driven gear is equipped with to the cover on the driven shaft, and driven gear is connected with the rack meshing.

Optionally, the wall of the movable cylinder comprises an inner layer made of soft steel metal and an outer layer made of smooth rubber.

Optionally, the pore wall of the mounting hole is provided with a guiding groove for shaping the movable cylinder, and two ends of the movable cylinder are respectively connected with the guiding groove in a sliding way.

Optionally, the shape of the movable cylinder is matched with that of the rudder blade body.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model provides a marine rudder efficiency enhancing device, which utilizes the principle of the Magnus effect in fluid mechanics, the rotation of a movable cylinder drives fluid to move, one side rotating along the direction of fluid movement accelerates the fluid movement, and on the contrary, the fluid movement speed at the other side of the movable cylinder is slowed down, and the pressure at the position where the fluid speed is fast is small according to the Bernoulli principle, so that the pressure difference is generated at the two sides of the movable cylinder, the Magnus effect stress is generated, the steering capacity of rudder blades is enhanced, and the sailing safety of a ship is increased;

the driven shaft can stably transfer the pressure difference generated on the surface of the rudder blade when the panel rotates at a high speed; the connection between the rotating shaft and the rotating panel adopts a plate tooth meshing mode, so that the structure can effectively reduce the non-uniformity of energy in the conversion process, the generated noise is minimum, the abrasion degree among the elements is effectively reduced, and the service life of the whole device is greatly prolonged;

the utility model can effectively reduce the rudder blade area on the premise of not reducing the ship turning moment, and is suitable for the boat requirement in shallow water areas.

Drawings

FIG. 1 is a schematic view of a marine rudder performance enhancing device according to the present utility model;

fig. 2 is a top-down view of fig. 1.

In the figure: 1. a rudder blade body; 2. a movable cylinder; 3. a mounting hole; 4. a rotating shaft; 5. a motor; 6. a power supply; 7. a drive gear; 8. a connecting gear; 9. a driven shaft; 10. a drive gear; 11. a rack; 12. a driven gear; 13. a cavity; 14. leading to the groove.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

Example 1

As shown in fig. 1 to 2, the marine rudder effectiveness enhancing device comprises a rudder blade main body 1, wherein a movable cylinder 2 and a mounting hole 3 for mounting the movable cylinder 2 are arranged on the rudder blade main body 1, the shape of the movable cylinder 2 is matched with that of the rudder blade main body 1, and the cylinder wall of the movable cylinder 2 consists of an inner layer made of soft steel metal and an outer layer made of smooth rubber; the movable cylinder 2 and the hole wall of the mounting hole 3 form a sealing cavity 13, and the upper end and the lower end of the movable cylinder 2 are in sliding connection with the hole wall of the mounting hole 3.

The cavity 13 is internally provided with a rotating shaft 4 for driving the movable cylinder 2 to rotate, a driven shaft 9 for shaping the movable cylinder 2, a motor 5 for driving the rotating shaft 4 to rotate and a power supply 6 for supplying power to the motor 5, wherein the motor 5 and the power supply 6 are fixedly connected with the wall of the mounting hole 3 through a bracket, the rotating shaft 4 is arranged in the vertical direction, two ends of the rotating shaft 4 are rotationally connected with the wall of the mounting hole 3, two ends of the driven shaft 9 are respectively rotationally connected with the wall of the mounting hole 3, and the shaft wall of the driven shaft 9 is in rolling connection with the inner cylinder wall of the movable cylinder 2;

the output shaft sleeve horizontally arranged on the motor 5 is provided with a driving gear 7, the shaft wall of the rotating shaft 8 is sleeved with a connecting gear 8, the driving gear 7 and the connecting gear 8 are conical gears matched with each other, and the driving gear 7 is meshed and connected with the connecting gear 8; the shaft wall of the rotating shaft 4 is sleeved with two driving gears 10, the two driving gears 10 are respectively arranged on two sides of the connecting gear 8, racks 11 matched with the driving gears 10 are arranged on the inner side wall of the movable cylinder 2, and the driving gears 10 are in meshed connection with the racks 11.

Example two

As shown in fig. 1 to 2, unlike the first embodiment, the driven shaft 9 of the present embodiment is sleeved with two driven gears 12, and the driven gears 12 are engaged with the racks 11; the hole wall of the mounting hole 3 is provided with a guide groove 14 for shaping the movable barrel 2, and two ends of the movable barrel 2 are respectively connected with the guide groove 14 in a sliding way.

When the method is applied, when a large rudder angle is required to rotate in emergency in the ship sailing process suddenly, after the command console sends out a maximum rudder angle operation command, besides the steering engine starts to rotate the rudder blade main body 1, the rudder efficiency enhancing device is also started urgently, the control system controls the motor 5 to start clockwise or anticlockwise according to the steering requirement and rotate at a high speed, the movable cylinder is driven to rotate rapidly to generate a magnus effect, the ship rotating moment is increased, the rotation diameter is reduced, so that the ship is prevented from accidents, after the ship is safely kept away, the command console sends out a rudder returning command, the motor 5 stops working, the movable cylinder is locked, and the ship is fixed only by the rudder blade main body 1.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.

Claims

1. The utility model provides a marine rudder effectiveness reinforcing apparatus, includes rudder blade main part, its characterized in that: the rudder blade main body is provided with a movable cylinder and a mounting hole for mounting the movable cylinder, the movable cylinder and the hole wall of the mounting hole form a sealed cavity, and two ends of the movable cylinder are in sliding connection with the hole wall of the mounting hole; the cavity is internally provided with a rotating shaft for driving the movable cylinder to rotate, a motor for driving the rotating shaft to rotate and a power supply for supplying power to the motor, and two ends of the rotating shaft are rotationally connected with the wall of the mounting hole.

2. A marine rudder effect enhancing device according to claim 1, wherein: the cavity is internally provided with a driven shaft for shaping the movable cylinder, two ends of the driven shaft are respectively and rotatably connected with the hole wall of the mounting hole, and the shaft wall of the driven shaft is in rolling connection with the inner cylinder wall of the movable cylinder.

3. A marine rudder effect enhancing device according to claim 1, wherein: the output shaft of the motor is provided with a driving gear, the rotating shaft sleeve is provided with a connecting gear, and the driving gear is meshed with the connecting gear.

4. A marine rudder effect enhancing device according to claim 2, wherein: the driving gear is sleeved on the rotating shaft, a rack matched with the driving gear is arranged on the inner side wall of the movable barrel, and the driving gear is connected with the rack in a meshed mode.

5. The marine rudder performance enhancing apparatus according to claim 4, wherein: the driven shaft is sleeved with a driven gear, and the driven gear is connected with the rack in a meshed mode.

6. A marine rudder effect enhancing device according to claim 1, wherein: the wall of the movable cylinder comprises an inner layer made of soft steel metal and an outer layer made of smooth rubber.

7. A marine rudder effect enhancing device according to claim 1, wherein: the pore wall of the mounting hole is provided with a guide groove for shaping the movable cylinder, and two ends of the movable cylinder are respectively connected with the guide groove in a sliding manner.

8. A marine rudder effect enhancing device according to claim 1, wherein: the shape of the movable cylinder is matched with that of the rudder blade body.