CN114701635B

CN114701635B - Marine guide wheel regulation and control rudder

Info

Publication number: CN114701635B
Application number: CN202210475473.1A
Authority: CN
Inventors: 侯立勋; 朱军区; 王庆才; 胡安康; 常欣; 闯振菊; 王顺
Original assignee: Dalian Maritime University
Current assignee: Dalian Maritime University
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2023-02-14
Anticipated expiration: 2042-04-29
Also published as: CN114701635A

Abstract

The invention provides a marine guide wheel regulation rudder, which comprises: the rudder stock, rigid frame, elastic rudder body and guide pulley, the elastic rudder body locates in the rigid frame, and front end and rear end of the elastic rudder body all with rigid frame fixed connection, be equipped with the cavity in the elastic rudder body, the rudder stock and rigid frame fixed connection, be equipped with the interior axle in the rudder stock, the interior axle passes the cavity, be equipped with the guide pulley on the interior axle, when the elastic rudder body and interior axle take place relative rotation, the guide pulley can make the elastic rudder body take place elastic deformation through relative rotation. The invention discloses a guide wheel regulation and control rudder for a ship. In a straight sailing state, the rudder blade keeps a symmetrical wing shape, and smaller resistance is ensured; in a steering state, the cross section of the rudder is in an asymmetric airfoil shape, and larger lift force can be generated, so that the steering effect is effectively improved.

Description

Marine guide pulley regulation and control rudder

Technical Field

The invention relates to the technical field of ships, in particular to a guide wheel regulation and control rudder for a ship.

Background

As an important ship equipment, the rudder device plays a decisive role in ship maneuverability, while the rudder blade, as an end part of the rudder device, has a significant influence on ship course stability and turning. The rudder blade profile is usually a symmetrical airfoil in view of the bilateral symmetry of the rudder blade function. In a straight sailing state, the symmetrical wing profiles have smaller resistance; however, in a steering state, the bypass lift force of the symmetrical wing profile is small, the steering efficiency is low, and the ship maneuverability is poor.

Disclosure of Invention

The invention provides a guide wheel regulation rudder for a ship, which aims to solve the problems.

A marine idler rudder comprising: the elastic rudder body is arranged in the rigid frame, the front end and the rear end of the elastic rudder body are fixedly connected with the rigid frame, a cavity is formed in the elastic rudder body, the rudder body is fixedly connected with the rigid frame, an inner shaft is arranged in the rudder body and penetrates through the cavity, the guide wheel is arranged on the inner shaft, and when the elastic rudder body and the inner shaft rotate relatively, the guide wheel can enable the elastic rudder body to deform elastically through relative rotation.

Further, the rigid frame comprises a top sealing body, a bottom sealing body, a head sealing body and a tail sealing body, wherein the top sealing body and the bottom sealing body are both plate-shaped structures which are matched with the cross section of the elastic rudder body in shape, two ends of the head sealing body are respectively fixed at the front end of the top sealing body and the front end of the tail sealing body, and two ends of the tail sealing body are respectively fixed at the rear end of the top sealing body and the rear end of the tail sealing body.

Further, be equipped with between the top-sealed body and the end-sealed body along the limiting plate that elasticity rudder body bow stern line set up, the limiting plate includes head limiting plate, tail limiting plate and well limiting plate, head limiting plate with head-sealed body fixed connection, the tail limiting plate with tail-sealed body fixed connection, the limiting plate is all located in the cavity.

Further, the cavity comprises a head cavity, a tail cavity and a middle cavity, the head limiting plate is arranged in the head cavity, the tail limiting plate is arranged in the tail cavity, and the middle limiting plate and the guide wheel are arranged in the middle cavity.

Furthermore, a flexible base plate is arranged on the inner wall of the middle cavity, and the guide wheel is abutted to the flexible base plate in the rotating process.

Further, the thickness of the cavity is the sum of the preset arching height at the corresponding chord-wise position and the thickness of the limiting plate.

The invention discloses a guide wheel regulating rudder for a ship, which is characterized in that an elastic rudder body is arranged in a rigid frame, a guide wheel is arranged in the rudder, and the section shape of a rudder blade is regulated by rotating the guide wheel according to the steering condition. In a straight sailing state, the rudder blade keeps a symmetrical wing shape, and smaller resistance is ensured; in a steering state, the cross section of the rudder is in an asymmetric airfoil shape, so that a larger lift force can be generated, and the steering effect is effectively improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a marine guide wheel regulation rudder disclosed in an embodiment of the present invention;

FIG. 2 is a schematic view of a rigid frame structure disclosed in an embodiment of the present invention;

FIG. 3 is a partially enlarged view of the elastic rudder body disclosed in the embodiment of the present invention;

FIG. 4 is a schematic illustration of an inner shaft and idler construction disclosed in an embodiment of the present disclosure;

fig. 5 is a schematic view of a marine guide wheel regulation rudder in a straight-going state according to an embodiment of the present invention;

fig. 6 is a schematic view of a marine guide wheel control rudder in a steering state according to an embodiment of the present invention.

In the figure: 1. a tiller; 2. a rigid frame; 3, top sealing; 4. a bottom sealing body; 5. a first sealing body; 6. a tail seal body; 7. an elastic rudder body; 8. a guide wheel; 10. a primary cavity; 11. a tail cavity; 12. a middle cavity; 13. an inner shaft; 15. a first limit plate; 16. a tail limit plate; 17. a middle limit plate; 18. a flexible backing plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

As shown in fig. 1 to 4, the present embodiment discloses a marine guide wheel regulation rudder, including: rudderstock 1, rigid frame 2, the elastic rudder body 7 and guide pulley 8, the elastic rudder body 7 is located in the rigid frame 2, just the front end and the rear end of the elastic rudder body 7 all with rigid frame 2 fixed connection, be equipped with the cavity in the elastic rudder body 7, rudderstock 1 with rigid frame 2 fixed connection, be equipped with interior axle 13 in the rudderstock 1, interior axle 13 passes the cavity, interior epaxial 13 is equipped with guide pulley 8 is worked as the elastic rudder body 7 with when interior axle 13 takes place relative rotation, guide pulley 8 can make through relative rotation elastic deformation takes place for the elastic rudder body 7.

The invention discloses a guide wheel regulating rudder for a ship, which is characterized in that an elastic rudder body is arranged in a rigid frame, a guide wheel is arranged in the rudder, and the cross section shape of a rudder blade is regulated through the relative rotation of the elastic rudder body and the guide wheel according to the steering condition. In a straight-sailing state, the rudder blade keeps symmetrical wing shapes, and smaller resistance is ensured; in a steering state, the cross section of the rudder is in an asymmetric airfoil shape, so that a larger lift force can be generated, and the steering effect is effectively improved.

In this embodiment, the elastic rudder body 7 is made of rubber with good elasticity and is connected with the rigid frame through special glue, the rigid frame is split, and after the elastic rudder body 7 is bonded, the rigid frame is assembled and installed and can be connected through welding or screws. When in use, in a straight-sailing state, as shown in fig. 5, the elastic rudder body 7 is in an unstressed state, symmetrical wing shapes are kept, and the water resistance is small; in a steering state, as shown in fig. 6, the rudder stock 1 is rotated to rotate the rigid frame 2, the elastic rudder body 7 rotates along with the rigid frame 2, the inner shaft 13 is kept still, the guide wheel 8 and the elastic rudder body 7 rotate relatively to cause the elastic rudder body 7 to elastically deform, the middle part of the elastic rudder body has a certain transverse offset, the elastic rudder body deflects from a high-pressure surface (incident flow surface) to a low-pressure surface (back flow surface), and the rudder section becomes an asymmetric airfoil with camber, so that the rudder can generate a larger lift force, thereby effectively improving the steering effect.

Further, the rigid frame 2 includes a top seal body 3, a bottom seal body 4, a head seal body 5 and a tail seal body 6, the top seal body 3 and the bottom seal body 4 are both plate-shaped structures adapted to the cross-sectional shape of the elastic rudder body 7, and are symmetrical airfoil plate bodies in this embodiment, two ends of the head seal body 5 are respectively fixed to the front end of the top seal body 3 and the front end of the tail seal body 6, and two ends of the tail seal body 6 are respectively fixed to the rear end of the top seal body 3 and the rear end of the tail seal body 6.

In the embodiment, in order to further ensure the stability of the elastic rudder body 7 in the straight sailing state, the elastic rudder body 7 is fixedly connected with the top sealing body 3, the bottom sealing body 4, the head sealing body 5 and the tail sealing body 6, in the steering state, the elastic rudder body 7 is symmetrical wing-shaped at the joints of the upper end and the lower end and the rigid frame 2, then is transited to the middle to be asymmetrical wing-shaped, and through the arrangement of the number and the positions of the guide wheels, the size of a transition area can be adjusted, and the performance of the rudder is improved.

Be equipped with between the top seal body 3 and the end seal body 4 along the limiting plate that 7 bow stern lines of elasticity rudder body set up, the limiting plate includes head limiting plate 15, tail limiting plate 16 and well limiting plate 17, head limiting plate 15 with head seal body 5 fixed connection, tail limiting plate 16 with tail seal body 6 fixed connection, the limiting plate is all located in the cavity.

The cavity comprises an initial cavity 10, a tail cavity 11 and a middle cavity 12, the initial limiting plate 15 is arranged in the initial cavity 10, the tail limiting plate 16 is arranged in the tail cavity 11, and the middle limiting plate 17 and the guide wheel 8 are arranged in the middle cavity 12.

The limiting plates are matched with the cavities, the maximum offset of the elastic rudder body 7 is controlled, the limiting plates abut against the side walls of the cavities, the maximum offset of the elastic rudder body 7 is achieved, the size of each cavity can be adjusted according to actual needs, the thickness of each cavity is the sum of the preset arching height and the thickness of the limiting plate at the corresponding chord direction position, the preset arching height is the preset maximum offset, and the preset arching height is the sum of the maximum offsets of the elastic rudder body towards two sides respectively.

In this embodiment, a flexible pad 18 is disposed on an inner wall of the middle cavity 12, and the guide wheel 8 abuts against the flexible pad 18 during rotation. In this embodiment, the flexible mat 18 is a metal mat having good elasticity. The guide wheel 8 is connected with the metal base plate in an abutting mode, and the elastic rudder body 7 is prevented from being damaged in the relative rotation process.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A marine idler regulation rudder comprising: the rudder stock (1), the rigid frame (2), the elastic rudder body (7) and the guide wheel (8), the elastic rudder body (7) is arranged in the rigid frame (2), the front end and the rear end of the elastic rudder body (7) are fixedly connected with the rigid frame (2), a cavity is arranged in the elastic rudder body (7), the rudder stock (1) is fixedly connected with the rigid frame (2), an inner shaft (13) is arranged in the rudder stock (1), the inner shaft (13) penetrates through the cavity, the guide wheel (8) is arranged on the inner shaft (13), when the rudder stock (1) rotates, the rigid frame (2) rotates, the elastic rudder body (7) rotates along with the rigid frame (2), the inner shaft (13) keeps static, and the guide wheel (8) and the elastic rudder body (7) rotate relatively to enable the elastic rudder body (7) to deform elastically.

2. The marine guide wheel regulating rudder according to claim 1, wherein the rigid frame (2) comprises a top seal body (3), a bottom seal body (4), a head seal body (5) and a tail seal body (6), the top seal body (3) and the bottom seal body (4) are both plate-shaped structures which are adaptive to the cross-sectional shape of the elastic rudder body (7), two ends of the head seal body (5) are respectively fixed to the front end of the top seal body (3) and the front end of the tail seal body (6), and two ends of the tail seal body (6) are respectively fixed to the rear end of the top seal body (3) and the rear end of the tail seal body (6).

3. The marine guide wheel regulating rudder according to claim 2, wherein limiting plates are arranged between the top sealing body (3) and the bottom sealing body (4) along the fore-aft line of the elastic rudder body (7), the limiting plates include a head limiting plate (15), a tail limiting plate (16) and a middle limiting plate (17), the head limiting plate (15) is fixedly connected with the head sealing body (5), the tail limiting plate (16) is fixedly connected with the tail sealing body (6), and the limiting plates are all arranged in the cavity.

4. The marine guide wheel regulation rudder according to claim 3, wherein the cavity comprises an initial cavity (10), a tail cavity (11) and a middle cavity (12), the initial limit plate (15) is arranged in the initial cavity (10), the tail limit plate (16) is arranged in the tail cavity (11), and the middle limit plate (17) and the guide wheel (8) are arranged in the middle cavity (12).

5. The marine guide wheel regulating rudder according to claim 4, wherein a flexible backing plate (18) is arranged on the inner wall of the intermediate cavity (12), and the guide wheel (8) abuts against the flexible backing plate (18) during rotation.

6. The marine stator control rudder of claim 3, wherein the cavity has a thickness that is the sum of a predetermined camber height at the corresponding chordwise location and a thickness of the limiting plate.