CN115352582A - Ship stabilizing device based on Magnus effect - Google Patents

Abstract

The invention provides a ship anti-rolling device based on Magnus effect, which comprises a rotation control mechanism, a swing control mechanism, a telescopic control mechanism, a supporting body, a hollow shaft, a rotor wing, a first telescopic wing, a second telescopic wing and a scissor telescopic component, wherein the support body is arranged on the upper part of the support body; the telescopic control mechanism consists of an electric servo cylinder and a telescopic shaft and can realize axial telescopic control; the scissor telescopic assembly comprises a front end face support, a connecting disc, a rear end face support and two scissor hinges; the rear end face support of the scissor telescopic assembly is welded or riveted on the rotor wing, the front end face support is welded or riveted on the second telescopic wing, and the connecting disc is matched with a sliding bearing arranged at the front end of the telescopic shaft through a center hole and can rotate around the telescopic shaft, so that the scissor telescopic assembly can rotate along with the rotor wing and the second telescopic wing.

Description

Ship stabilizing device based on Magnus effect

Technical Field

The invention belongs to the technical field of ship equipment, and particularly relates to a ship stabilizing device based on a Magnus effect.

Background

When a ship sails on the sea surface, the ship can be influenced by sea wind, sea waves and ocean currents to swing, the seaworthiness, the safety and the stability of the ship can be reduced by the swing of the ship, the normal work of ship equipment and instruments and meters is further influenced, and goods in the ship can be displaced or fall to impact and damage due to serious swing. The swinging of the ship can also cause the ship passengers to feel fainting, reduce the comfort of the ship and influence the normal work of the ship passengers. For military ships, the takeoff and landing of carrier-based airplanes can be influenced by the swinging of the ships, the shooting precision and hit rate of carrier-based artillery can be reduced, and the fighting ships are in a passive state or even lose fighting capacity in the battle.

In order to reduce the rolling of the ship, ship industry technicians adopt various methods, such as equipping the ship with bilge keels, anti-rolling tanks, anti-rolling weights, anti-rolling gyros, anti-rolling fins, magnus rotary anti-rolling devices and the like. The anti-rolling fins are usually installed on two sides of the bilge of the ship in pairs, are the most widely applied active anti-rolling devices with the best anti-rolling effect at present, and the anti-rolling effect can reach 90 percent at most. The fin stabilizer can be generally divided into a fixed fin and a retractable fin, the fixed fin has certain requirements on the installation position for reducing the risk of collision, and the fixed fin can increase navigation resistance and increase fuel consumption when the fin does not need to be opened because the fin cannot be retracted; the retractable stabilizer fin can be retracted into the hull when not in use, so that the sailing resistance is reduced, and the retractable stabilizer fin can be pushed out when in need of stabilization, but the retractable device is complex and needs to occupy a large amount of valuable space in a ship. The rolling moment generated on the wing-shaped fin stabilizer is proportional to the square of the ship's sailing speed, so that the rolling effect at low sailing speed is poor.

The magnus rotary stabilizing device based on the magnus effect reduces the rolling of a ship by generating the lift force through the rotation of the cylindrical rotor wings arranged at the two sides of the bilge part of the ship body, and has the characteristics of high lift force, simple structure, good adaptability and the like. When the incoming flow speed (i.e. the ship speed) is U, the lift force applied to the rotor wing can be calculated by the Kutta-Conkowski theory, namely:

L＝2πρωr ² Ul

in the formula: ρ is the fluid density; ω is the angular velocity of rotation of the rotor wing; r is the radius of the rotor wing; l is the length (span length) of the rotor blade. It can be seen that when the rotor wing is sized, the lift generated thereon is proportional to the incoming flow velocity and the rotational angular velocity. At low navigational speeds, the lift generated on the rotor wing can be increased by increasing the rotational speed of the rotor wing, so that the magnus rotary stabilizer is more suitable for stabilizing a ship at lower navigational speeds than a stabilizer fin.

The patent 'a stabilizer suitable for low-speed boats' (application number 201910348785.4) discloses a stabilizer suitable for low-speed boats, which comprises two cone rotary columns, two rotatable support frames, a driving device, a control system and the like, wherein the rolling motion of the boats is reduced by generating lift force through the rotation of the cone rotary columns; the patent "a separation cylinder formula stabiliser based on magnus effect" (application number 201910908565.2) discloses a separation cylinder formula stabiliser based on magnus effect, and its rotor wing comprises two separated semicylinders, and the clearance between the semicylinders can play the effect of reposition of redundant personnel drag reduction. The above patent is mainly embodied in the improvement of rotor wing profiles, and the change of the lift force on the rotor wing in the patent is mainly realized by adjusting the rotating speed and the forward and backward tilt angle of the rotor wing, and the rotor wing is fixed in size by adopting the magnus effect rolling reduction device, so that although the span-wise effective water-attack length can be changed by changing the included angle between the rotor wing and the ship body, the maximum water-attack length is still limited by the structure of the rotor wing and cannot be changed, and the requirements of the ship on rolling reduction control under different sailing speeds and sea conditions are difficult to be considered.

Disclosure of Invention

Aiming at the defects in the prior art, the ship stabilizing device based on the Magnus effect provided by the invention utilizes the rotating structure which can be stretched in the axial direction, can select the optimal fin water-facing length according to the ship stabilizing control requirement, solves the problem that the effective water-facing length of the rotor wing cannot be changed in a larger range due to the structural limitation of the existing fin stabilizing product, can enable a ship to achieve the optimal stabilizing control effect under the conditions of different speeds and different sea conditions, and effectively improves the stabilizing performance and the navigation stability of the ship.

In order to achieve the above objects, the present invention provides a ship rolling reduction device based on magnus effect, which comprises a rotation control mechanism, a swing control mechanism, a telescopic control mechanism, a support body, a hollow shaft, a rotor wing, a first telescopic wing, a second telescopic wing and a scissor telescopic assembly; the rotation control mechanism comprises a rotation control motor, a rotation control worm and a rotation control gear; the swing control mechanism comprises a swing control motor, a swing control worm and a swung control gear; the telescopic control mechanism comprises an electric servo cylinder and a telescopic shaft; the scissor telescopic assembly comprises a front end face support, a connecting disc, a rear end face support and two scissor hinges; the upper end of the supporting body is sleeved and fixed in the swing control gear, and the front end of the supporting body is matched with the rolling bearing and sleeved on the hollow shaft; the front end of the hollow shaft is fixedly connected with the rotor wing through a transmission block, the rear end of the hollow shaft is sleeved and fixed in the rotation control gear, and the hollow shaft is matched with the rolling bearing and is rotatably connected to the support body; the rotor wing is fixedly connected with the hollow shaft through a transmission block and is rotatably sleeved on the supporting body, and the rotor wing is matched with the first telescopic wing through a guide groove; the front end of the first telescopic wing is matched with the second telescopic wing through a guide groove, and the rear end of the first telescopic wing is matched with the rotor wing through a guide slideway; the second telescopic wing is matched with the first telescopic wing through a guide slideway; the front end face support is welded or riveted on the inner wall of the second telescopic wing; the rear end face support is welded or riveted on the inner wall of the rotor wing; the connecting disc passes through central round hole and antifriction bearing cooperation and rotationally connects on the telescopic shaft, the connecting disc passes through the axial locking of locking bolt on the telescopic shaft.

Preferably, the rotary control motor drives the rotary control worm to drive the rotary control gear and the hollow shaft to rotate, so as to drive the rotor wing to rotate around the axis of the rotor wing; the swing control motor drives the swing control worm to drive the swing control gear support to swing around the vertical axis; the electric servo cylinder drives the telescopic shaft to do telescopic motion along the axial direction.

Preferably, the front end face support and the rear end face support of the scissor telescopic assembly are both of an outer circle and an inner square structure; the outer ring of the front end face support is welded or riveted on the inner wall of the second telescopic wing; the outer ring of the rear end face support is welded or riveted on the inner wall of the rotor wing; the front end face support and the rear end face support form two transverse support bars and two vertical support bars in the outer circular ring; guide grooves are formed at two ends of the two vertical supporting bars; the front end and the rear end of each scissors fork hinge are respectively in pin joint with the guide grooves at the two ends of the two vertical supporting bars in a sliding manner; the connecting disc is of a disc structure with a round hole formed in the center, and two protruding structures are symmetrically formed on two sides of an outer circle; the two symmetrical convex structures are respectively screwed with the first cross nodes of the two scissors fork hinges; the scissor telescopic assembly can rotate along with the rotor wing and the second telescopic wing under the driving of the rotary control mechanism.

Preferably, the rotor wing forms two guide grooves at diametrically opposite positions on the inner side of the front end; the first telescopic wing forms a raised guide slideway matched with the inner side guide groove of the rotor wing at the radial opposite position at the outer side, and forms two guide grooves at the radial opposite position at the inner side; a raised guide slideway matched with the guide groove at the inner side of the first telescopic wing is formed at the radially opposite position at the outer side of the second telescopic wing; the rotor wing can drive the first telescopic wing and the second telescopic wing to rotate around the axis of the rotor wing together along with the hollow shaft under the driving of the rotary control mechanism.

Preferably, the scissor telescopic assembly can move along with the telescopic shaft along the axial direction under the driving of the connecting disc and amplify the telescopic displacement of the telescopic shaft; the second telescopic wing can be driven by the front end face support of the scissor telescopic assembly to be matched with the guide groove of the first telescopic wing to be axially telescopic; the first telescopic wing can be driven by the second telescopic wing to be matched with the guide groove of the rotor wing to be axially telescopic.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

the invention provides a ship anti-rolling device based on a Magnus effect, which can control the rotating speed and the rotating direction of a rotor wing, a first telescopic wing and a second telescopic wing through a rotating control mechanism so as to adjust the magnitude and the direction of lift force generated by a wing body of the anti-rolling device; the rotation angle of the support body can be controlled through the swing control mechanism, and the included angles between the rotor wing, the first telescopic wing and the second telescopic wing and the ship body are changed, so that the effective water-facing lengths of the rotor wing, the first telescopic wing and the second telescopic wing are adjusted, and the lift force generated by the anti-rolling device is further adjusted; the telescopic length of the scissor telescopic assembly can be controlled through the telescopic control mechanism, the telescopic length of the first telescopic wing and the second telescopic wing is changed, and therefore the wing body extension length of the anti-rolling device is changed, and the lifting force generated by the anti-rolling device is adjusted. The invention can realize the flexible control of the swing reducing device based on the Magnus effect in three degrees of freedom of the rotation speed of the wing body, the effective water-facing length of the wing body and the extension length of the wing body, can ensure that the wing body of the swing reducing device generates the lifting force with the optimal size and direction in a larger control range, effectively considers the requirements of the ship on the swing reducing control under the conditions of different navigational speeds and different sea conditions, further improves the swing reducing control effect on the ship, improves the defect that the effective water-facing length of the existing swing reducing device based on the Magnus effect cannot be changed in a larger range due to the structural limitation of the wing body, and effectively improves the swing reducing performance and the navigation stability of the ship.

Drawings

FIG. 1 is an exterior perspective view of an embodiment of the present invention;

FIG. 2 is a front cross-sectional view of an embodiment of the present invention;

FIG. 3 is a side cross-sectional view of a bottom bracket axle of an embodiment of the present invention;

FIG. 4 is a perspective view of the internal structure of an embodiment of the present invention;

FIG. 5 is a perspective view of a scissors assembly of an embodiment of the present invention;

FIG. 6 is a perspective view of the profile of a rotor wing according to an embodiment of the present invention;

FIG. 7 is a perspective external view of a first flex wing according to an embodiment of the present invention;

fig. 8 is a perspective view showing the outer shape of the second telescopic wing according to the embodiment of the present invention.

Detailed Description

The following description of the preferred embodiments of the present invention is provided in order to better understand the functions and features of the present invention, and is made with reference to the accompanying drawings, which are illustrated in fig. 1 to 8.

Referring to fig. 1 to 8, a ship rolling reduction device based on magnus effect according to an embodiment of the present invention includes a rotation control mechanism, a swing control mechanism, a telescopic control mechanism, a supporting body 4, a hollow shaft 13, a rotor wing 5, a first telescopic wing 51, a second telescopic wing 52 and a scissor telescopic assembly; the rotation control mechanism comprises a rotation control motor 1, a rotation control worm 11 and a rotation control gear 12; the swing control mechanism comprises a swing control motor 2, a swing control worm 21 and a swing control gear 22; the telescopic control mechanism comprises an electric cylinder 3 and a telescopic shaft 31; the scissor telescopic assembly comprises a front end face support 61, a connecting disc 62, a rear end face support 63 and two scissor hinges 6; the upper end of the supporting body 4 is sleeved and fixed in the swing control gear 22, and the front end of the supporting body 4 is matched with the rolling bearing and sleeved on the hollow shaft 13; the front end of the hollow shaft 13 is fixedly connected with the rotor wing 5 through a transmission block 41, the rear end of the hollow shaft 13 is sleeved and fixed in the rotation control gear 12, and the hollow shaft 13 is matched with the rolling bearing and is rotatably connected inside the front end of the supporting body 4; the rotor wing 5 is fixedly connected with the hollow shaft 13 through the transmission block 41 and is rotatably sleeved outside the front end of the support body 4, and the rotor wing 5 is matched with the first telescopic wing 51 through the guide groove; the front end of the first telescopic wing 51 is matched with the second telescopic wing 52 through a guide groove, and the rear end of the first telescopic wing 51 is matched with the rotor wing 5 through a guide slideway; the second telescopic wing 52 is matched with the first telescopic wing 51 through a guide slideway; the front end surface bracket 63 is welded or riveted on the inner wall of the second telescopic wing 52; the rear end surface bracket 61 is welded or riveted on the inner wall of the rotor wing 5; connecting disc 62 passes through central round hole and antifriction bearing cooperation and rotationally the suit on telescopic shaft 31, and connecting disc 62 passes through the axial locking of locking bolt on telescopic shaft.

Referring to fig. 1-4, the rotation control worm 11 is engaged with the rotation control gear 12 and driven by the rotation control motor 1 to rotate, and the hollow shaft 13 is driven by the rotation control gear 12 to rotate, so as to drive the rotor wing 5 to rotate around its axis; the swing control worm 21 is matched with the swing control gear 22 and rotates under the driving of the swing control motor 2, and the support body 4 is driven to swing around the vertical axis of the support body through the swing control gear 22; the electric servo cylinder 3 can drive the telescopic shaft 31 to do telescopic motion along the axial direction.

Referring to fig. 2-5, the front end face support 61 and the rear end face support 63 of the scissors assembly are both of an outer circle and an inner square structure; the outer ring of the front end surface bracket 61 is welded or riveted on the inner wall of the second telescopic wing 52; the outer ring of the rear end face support 63 is welded or riveted on the inner wall of the rotor wing 5; the front end surface support 61 and the rear end surface support 63 are respectively provided with two transverse support bars and two vertical support bars inside the external circular ring; a guide groove is formed at the connecting section of the two vertical supporting bars; two ends of the chain scissor hinge 6 are respectively in pin joint with the guide grooves at two ends of the two vertical supporting bars in a sliding manner; the connecting disc 62 is of a disc-shaped structure, a central circular hole is formed in the center of the connecting disc, and two protruding structures are symmetrically formed on two sides of the outer part; two symmetrical convex structures on the connecting disc 62 are respectively screwed with the first cross nodes of the two scissors hinges 6; the scissor telescopic assembly can rotate along with the rotor wing 5 and the second telescopic wing 52 under the drive of the rotation control mechanism.

Referring to fig. 1 to 3 and 6 to 8, the rotor wing 5 has two guide grooves formed at radially opposite positions on the inner side of the front end; the first telescopic wing 51 forms two guide protrusion guide slideways at the radial opposite positions at the outer side and forms two guide grooves at the radial opposite positions at the inner side; the second telescopic wing 52 forms a protruding guide slideway at an outer radial opposite position, which is matched with the inner guide groove of the first telescopic wing 51.

Referring to fig. 2-5, the scissors assembly can move along with the telescopic shaft 31 in the axial direction under the driving of the connecting disc 62 and amplify the telescopic displacement of the telescopic shaft 31; the second telescopic wing 52 can be driven by the front end face bracket 61 of the scissor telescopic assembly to be matched with the guide groove of the first telescopic wing 51 to be axially telescopic; the first telescopic wing 51 can be driven by the second telescopic wing 52 to be matched with the guide groove of the rotor wing 5 to be axially telescopic.

According to the ship anti-rolling device based on the Magnus effect, the rotor wing 5 can drive the first telescopic wing 51 and the second telescopic wing 52 to rotate around the axis of the rotor wing together with the hollow shaft 13 under the driving of the rotary control motor 1, the rotary control worm 11 and the rotary control gear 12, so that the size and the direction of the lift force generated by the anti-rolling device can be adjusted by controlling the rotating speed and the direction of the wing body of the anti-rolling device; the supporting body 4 can drive the rotor wing 5, the first telescopic wing 51 and the second telescopic wing 52 to rotate around the vertical axis of the supporting body 4 under the driving of the swing control motor 2, the swing control worm 21 and the swing control gear 22, so that the effective water facing lengths of the rotor wing 5, the first telescopic wing 51 and the second telescopic wing 52 can be changed by controlling the included angle between the wing body of the anti-rolling device and the ship body, and the lift force generated by the anti-rolling device is further adjusted; the telescopic shaft 31 can drive the connecting disc 62, the scissors hinges 6 and the front end face support 61 to move along the axial direction of the telescopic shaft 31 under the driving of the electric servo cylinder 3, the axial telescopic displacement of the telescopic shaft 31 is amplified through the two scissors hinges 6, the second telescopic wing 52 and the first telescopic wing 51 are driven to stretch along the axial direction through the front end face support 61, and therefore the lifting force generated by the stabilizing device can be adjusted by controlling the span length of the stabilizing device. The invention can realize the flexible control of the three degrees of freedom of the swing reducing device based on the Magnus effect on the rotation speed of the wing body, the effective water-facing length of the wing body and the extension length of the wing body, can adjust the size and the direction of the lift force generated by the swing reducing device in a larger control range, ensures that the wing body of the swing reducing device can provide the lift force with the optimal size and direction, effectively meets the requirements of the ship on the swing reducing control under the conditions of different navigational speeds and different sea conditions, further improves the swing reducing control effect on the ship, overcomes the defect that the existing swing reducing device based on the Magnus effect cannot change the effective water-facing length in a larger range due to the limitation of the structure of the wing body, and effectively improves the swing reducing performance and the navigation stability of the ship.

In the invention, the telescopic shaft can be driven by the telescopic control mechanism to axially extend and retract, and the connecting disc drives the fork frame to axially amplify the telescopic displacement, so that the second telescopic wing and the first telescopic wing are pushed to axially extend and retract. According to the invention, the flexibility degree of the anti-rolling device in the axial direction is increased through the telescopic control mechanism and the shear fork telescopic assembly, the extension of the wing body of the anti-rolling device can be adjusted and controlled, the sea condition application range of the anti-rolling device can be effectively expanded, the anti-rolling capability of a ship is enhanced, and the anti-rolling effect is improved.

While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be defined by the appended claims.

Claims (5)

1. An anti-rolling device based on Magnus effect is characterized by comprising a rotation control mechanism, a swing control mechanism, a telescopic control mechanism, a supporting body, a hollow shaft, a rotor wing, a first telescopic wing, a second telescopic wing and a scissor fork telescopic assembly; the rotation control mechanism comprises a rotation control motor, a rotation control worm and a rotation control gear; the swing control mechanism comprises a swing control motor, a swing control worm and a swing control gear; the telescopic control mechanism comprises an electric servo cylinder and a telescopic shaft; the scissor telescopic assembly comprises a front end face support, a connecting disc, a rear end face support and two scissor hinges; the upper end of the supporting body is sleeved and fixed in the swing control gear, and the front end of the supporting body is matched with the rolling bearing and sleeved on the hollow shaft; the front end of the hollow shaft is fixedly connected with the rotor wing through a transmission block, the rear end of the hollow shaft is sleeved and fixed in the rotation control gear, and the hollow shaft is matched with the rolling bearing and is rotatably connected to the supporting body; the rotor wing is fixedly connected with the hollow shaft through a transmission block and is rotatably sleeved on the supporting body, and the rotor wing is matched with the first telescopic wing through a guide groove; the front end of the first telescopic wing is matched with the second telescopic wing through a guide groove, and the rear end of the first telescopic wing is matched with the rotor wing through a guide slideway; the second telescopic wing is matched with the first telescopic wing through a guide slideway; the front end face support is welded or riveted on the inner wall of the second telescopic wing; the rear end face support is welded or riveted on the inner wall of the rotor wing; the connecting pad passes through central round hole and installs the antifriction bearing cooperation at the telescopic shaft front end and rotationally connects at the telescopic shaft front end, the connecting pad passes through the locking bolt and follows axial locking at the telescopic shaft front end.

2. The stabilizing device based on the Magnus effect as claimed in claim 1, wherein the rotation control motor drives the rotation control worm to drive the rotation control gear and the hollow shaft to rotate so as to drive the rotor wing to rotate along the body surrounding axis; the swing control motor drives the swing control worm to drive the swing control gear and the support body to swing along a vertical axis around the support body; the electric servo cylinder drives the telescopic shaft to stretch and retract along the axial direction.

3. A magnus effect based roll reduction apparatus as claimed in claim 1, wherein the front face support and the rear face support of the scissor jack assembly are both of a cylindrical and a square configuration; the outer ring of the front end face support is welded or riveted on the inner wall of the second telescopic wing, and the outer ring of the rear end face support is welded or riveted on the inner wall of the rotor wing; the front end face support and the rear end face support form two transverse support bars and two vertical support bars in the outer circular ring; guide grooves are formed at two ends of the two vertical supporting bars; two ends of the two scissor hinges are respectively slidably connected in the guide grooves at two ends of the two vertical supporting bars in a pin joint manner; the connecting disc is of a disc structure with a round hole formed in the center, and two protruding structures are symmetrically formed on two sides of an outer circle; the two symmetrical convex structures are respectively in threaded connection with first cross nodes of the two scissors hinges; the scissor telescopic assembly can rotate along with the rotor wing and the second telescopic wing under the driving of the rotary control mechanism.

4. A magnus effect based roll reduction device according to claim 1, wherein said rotor wings form two guide grooves at diametrically opposite positions inside the front end; the first telescopic wing forms a raised guide slideway matched with the inner side guide groove of the rotor wing at the radial opposite position at the outer side, and forms two guide grooves at the radial opposite position at the inner side; a raised guide slideway matched with the guide groove at the inner side of the first telescopic wing is formed at the radially opposite position at the outer side of the second telescopic wing; the rotor wing can drive the first telescopic wing and the second telescopic wing to rotate around the axis of the rotor wing together along with the hollow shaft under the driving of the rotary control mechanism.

5. The magnus effect-based roll reduction device according to claim 1, wherein the scissor telescopic assembly can move along with the telescopic shaft in the axial direction under the driving of the connecting disc and amplify the telescopic displacement of the telescopic shaft; the second telescopic wing can be driven by the front end face support of the scissor telescopic assembly to be matched with the guide groove of the first telescopic wing to be axially telescopic; the first telescopic wing can be driven by the second telescopic wing to be matched with the guide groove of the rotor wing to be axially telescopic.

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