CN108639303A - A kind of rotor rudder peculiar to vessel - Google Patents

Abstract

The purpose of the present invention is to provide a kind of rotor rudders peculiar to vessel, including main rudder leaf, sub- rudder blade, upper rectification sealing plate, lower rectification sealing plate, main helm axis, rotary column axis, sub- rudderpost, sub- rudder blade connects main rudder leaf by linkage, upper rectification sealing plate is fixed on above main rudder leaf, lower rectification sealing plate is fixed below main rudder leaf, sun gear and planetary gear are set in upper rectification sealing plate, sun gear and planetary gear are rotated synchronously by transmission belt, sun gear is fixed on main helm axis, planetary gear is fixed on sub- rudderpost upper end, sub- rudderpost lower end is placed in the bearing on main rudder leaf, sub- rudderpost is fixed with sub- rudder blade by hinge, rudder bearer is installed between main helm axis and main rudder leaf, the upper and lower end of rotary column axis is separately connected main rudder leaf, the upper end of rotary column axis is by being keyed motor.The present invention starts in lowsteaming, improves maneuverability.And possess wing flap tail, when coming about, the bending of section is equivalent to the camber for increasing section, and flow accelerates, and stalling rudder angle increases, and improves lift.

Description

A marine rotor rudder

technical field

The invention relates to a ship propulsion equipment, in particular to a ship rotor rudder.

Background technique

The tonnage of modern ships is getting bigger and bigger, the requirements for maneuverability are getting higher and higher, and the operating conditions are becoming more and more complex. Designers are required to continuously study new rudder types to improve the maneuverability of ships, and high-efficiency rudders Special rudder is one of the effective measures to improve maneuverability.

Special rudders are the development of ordinary rudders, or the combination of ordinary rudders and other equipment with special types of rudders, such as active rudders, fairing cap rudders, flap rudders, rotor rudders, etc.

The special rudder can improve the propulsion efficiency and maneuverability of the ship, especially the maneuverability of the ship when sailing at low speed.

Modern ships have the following requirements for the maneuverability of the rudder: course maintenance at small rudder angles, course change at medium rudder angles, and ship turning at large rudder angles.

Contents of the invention

The object of the present invention is to provide a marine rotor rudder with higher rudder efficiency than conventional rudders and obvious advantages in maneuverability.

The purpose of the present invention is achieved like this:

The present invention is a marine rotor rudder, which is characterized in that it comprises main rudder blades, sub-rudder blades, upper rectifying sealing plates, lower rectifying sealing plates, main rudder shafts, rotating column shafts, and sub-rudder shafts, and the sub-rudder blades are connected by a hinge mechanism For the main rudder blade, the upper rectifying sealing plate is fixed above the main rudder blade, the lower rectifying sealing plate is fixed below the main rudder blade, the sun gear and the planetary gear are arranged in the upper rectifying sealing plate, the sun gear and the planetary gear rotate synchronously through the transmission belt, and the sun gear Fixed on the main rudder shaft, the planetary wheel is fixed on the upper end of the sub rudder shaft, the lower end of the sub rudder shaft is sleeved in the bearing on the main rudder blade, the sub rudder shaft and the sub rudder blade are fixed by a hinge, and the lower end of the main rudder shaft extends into the To the main rudder blade, a rudder bearing is installed between the main rudder shaft and the main rudder blade, the upper end and the lower end of the rotor shaft are respectively connected to the main rudder blade through their respective rotor bearings, and the upper end of the rotor shaft is connected to the motor through a key .

The present invention may also include:

1. The diameter ratio of the sun gear to the planet gear is 2.57, and the width ratio of the sub-rudder blade to the main rudder blade is 1:3.

2. The lower part of the main rudder shaft is thicker than its upper part, and the thickness of the lower rectifying sealing plate is smaller than that of the upper rectifying sealing plate.

3. Both the section of the main rudder blade and the section of the sub-rudder blade are streamlined, and the section shape of the sub-rudder blade follows the streamlined shape of the main rudder blade.

The advantages of the present invention are: the present invention improves the lift force, increases the turning moment of the ship, improves the turning performance, delays the separation of the water flow, and increases the critical rudder angle. Generally speaking, the rudder force can be increased by 50% compared with the common rudder, the maximum value is 2 times, and it can reach 3 to 4 times at low speed, and it can be increased by 4 times when going backwards. Activated at low speeds for improved maneuverability. And it has a flap tail, when the rudder is turned, the bending of the section is equivalent to increasing the camber of the section, the water flow accelerates, the critical rudder angle increases, and the lift is improved.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a motion principle diagram of the present invention.

Detailed ways

The present invention is described in more detail below in conjunction with accompanying drawing example:

Combined with Figure 1-2, the design scheme mainly includes main rudder shaft 1, sub rudder shaft 7, rotor 11, main rudder blade 10, sub rudder blade 6, sub rudder transmission device, stern seal plate, rotor motor 13, rudder bearing, etc.

The main rudder blade 10 is designed in a specific shape, and the cross section of each part is generally streamlined. The front end of the main rudder blade 10 is designed with a motor room, which follows the rotation of the main rudder. 1 is hoisted at the lower end of the stern of the ship, the main rudder shaft 1 is thinner at the top and thicker at the bottom, and is controlled by the steering gear inside the ship.

An asynchronous motor 13 is installed in the motor room, and the motor and the rotor 11 are connected together by a key to drive the rotor 11 to rotate at a high speed. The direction of rotation of the rotor is controlled by electric current. The upper end of the rotor is inserted into the bearing hole of the main rudder blade 10, and the bearing hole is fully lubricated.

The sub-rudder blade 6 is driven by the sub-rudder shaft, and is connected with the main rudder blade through three hinge mechanisms. The width ratio of the sub-rudder blade 6 and the main rudder blade 10 is 1:3. shape.

There are rectifying sealing plates on the upper and lower sides of the rudder blade, and the thickness of the lower sealing plate is smaller than that of the upper sealing plate. The sun gear 2 and the planetary gear 4 are installed in the upper sealing plate, the upper sealing plate is fixed on the top of the main rudder blade 10, and the lower sealing plate is fixed on the main rudder Below the blade 10, when the rudder is turned, the rectifying sealing plate rotates with the main rudder blade 10.

The transmission device of sub-rudder comprises sun gear 2, planetary gear 4 and transmission belt 3. The large gear is fixed on the main rudder shaft as the sun gear, and the pinion is used as the planetary gear to drive the sub-rudder blade 6 to rotate, and the diameter ratio of the large gear and the pinion is 2.57. There is a transmission belt between the two wheels, and the transmission belt is parallel to ensure that the rotation direction of the planetary wheel is the same as the revolution direction.

The present invention combines the Magnus effect (in a uniform water flow, the rotating cylinder can generate lift perpendicular to the direction of the incoming flow and the axis of rotation) and the principle of flap rudders (increase the sub-rudder blades, increase the camber of the rudder surface, Change the direction of water flow and increase the water flow rate) and design and implement.

As shown in Figure 1, the main rudder shaft 1 is connected to the hull and the rudder, and the rudder is hoisted as a whole in the wake area behind the stern propeller, and the upper end of the main rudder shaft is connected to the hydraulic steering gear.

The lower part of the main rudder shaft 1 is located in the main rudder blade 10, the lower end of which is fixed with the sun gear 2, and the planetary gear 4 and the sun gear 2 are installed at the same horizontal position for the rotation of the sub rudder blade 6. The main rudder shaft 1 is installed with an upper rudder bearing 15 and a lower rudder bearing 14 in the main rudder blade 10 . The conveyor belt 3 ensures that the sun gear 2 and the planetary gear 4 turn to the same direction.

The planetary wheel 4 is installed on the upper end of the sub-rudder shaft 7, which is located in the upper rectifying sealing plate 5, and the lower end is inserted into the bearing located in the main rudder blade 10. The sub-rudder shaft 7 and the sub-rudder blade 6 are fixed by hinges, and the rotation of the sub-rudder shaft 7 The rotation of the sub-rudder blade 6 is driven. The sub rudder shaft 7 is installed in the lubricated bearing of the main rudder blade 10 .

The width ratio of sub-rudder blade 6 and main rudder blade 10 is 1:3, and the design aspect ratio is 1.5.

The asynchronous motor 13 is installed in the motor room, and the lower end is connected with the rotating column shaft 11 . The motor room and the upper rectifying sealing plate 5 are provided with a collection hole 16 for installing the power supply line of the asynchronous motor.

As shown in FIG. 2 , the conveyor belt 3 is arranged horizontally in the schematic diagram of the sub-rudder transmission device. When the main rudder blade 10 rotates counterclockwise, the sub-rudder blade 6 also rotates counterclockwise. The diameter ratio of the sun gear 2 to the planetary gear 4 is 2.57, which ensures that the ratio of the rotation angle of the sub-rudder blade 6 to the rotation angle of the main rudder blade 10 is also 2.57.

When the ship sails in a straight line, there is no need to turn the rudder, and the rudder angle is 0 degrees, as shown in figure a. When the turning moment is required, the rudder position is changed from a to b, and if a large rudder angle is required, then to c. When the c position is reached, the sub-rudder blade 6 is at an angle of 90 degrees to the longitudinal direction of the ship. While increasing the camber of the rudder surface, the direction of the water flow is changed to be perpendicular to the direction of the ship, and the water flow velocity is increased, so that the turning moment of the ship can be increased to the greatest extent.

To sum up, the present invention provides a new combined rotor rudder based on the rotor rudder and the flap rudder, its construction structure, and the design scheme is reasonable. The critical angle of the new rotor rudder is greatly improved, and the rudder effect is increased to ensure good maneuverability of the ship. On the basis of the original flap rudder, a rotor is added, and an asynchronous motor driving the rotor is added for high-speed rotation of the rotor, thereby greatly increasing the lift of the rudder and further increasing the turning moment.

Claims (5)

1. a kind of rotor rudder peculiar to vessel, it is characterized in that：Including main rudder leaf, sub- rudder blade, upper rectification sealing plate, lower rectification sealing plate, main helm axis, Rotary column axis, sub- rudderpost, sub- rudder blade connect main rudder leaf by linkage, and upper rectification sealing plate is fixed on above main rudder leaf, lower rectification Sealing plate is fixed below main rudder leaf, and setting sun gear and planetary gear, sun gear and planetary gear pass through transmission belt in upper rectification sealing plate It rotates synchronously, sun gear is fixed on main helm axis, and planetary gear is fixed on sub- rudderpost upper end, and sub- rudderpost lower end is placed on main rudder leaf On bearing in, sub- rudderpost is fixed with sub- rudder blade by hinge, and main helm axis lower end stretches in main rudder leaf, main helm axis and main rudder Rudder bearer is installed, the upper and lower end of rotary column axis connects main rudder leaf, rotary column axis by respective rotary column bearing respectively between leaf Upper end pass through be keyed motor.

2. a kind of rotor rudder peculiar to vessel according to claim 1, it is characterized in that：Sun gear and planet wheel diameter ratio are 2.57, The width ratio of sub- rudder blade and main rudder leaf is 1:3.

3. a kind of rotor rudder peculiar to vessel according to claim 1 or 2, it is characterized in that：The lower part of main helm axis is coarser than upper part Point, the thickness of lower rectification sealing plate is less than the thickness of upper rectification sealing plate.

4. a kind of rotor rudder peculiar to vessel according to claim 1 or 2, it is characterized in that：The section of main rudder leaf and sub- rudder blade cut open Face is streamlined, and the section shape of sub- rudder blade accepts the section streamline-shaped of main rudder leaf.

5. a kind of rotor rudder peculiar to vessel according to claim 3, it is characterized in that：The section of the section of main rudder leaf and sub- rudder blade is equal To be streamlined, the section shape of sub- rudder blade accepts the section streamline-shaped of main rudder leaf.