RU2347713C2 - Active propulsion/steering unit - Google Patents

Abstract

FIELD: transport, ship building.

SUBSTANCE: invention can be used on surface vessel as an active propulsion/steering unit. The ship steerer consists of a rudder blade, rudder stock and servo unit. The rudder blade is made up of two steel rectangular plates spaced a bit apart in vertical. Note that one ends of the said plates are rigidly attached to the rudder stock lower part arranged on the movable platform. The second ends of the said plates are jointed by a vertical port with a cable attached to its centre and arranged between the blade plates and passing through the rudder stock to the cable tensioning device. With the cable length decreasing, the blade plates get bent to the shape of circumference arc which, with the rudder stock vibrating in the 180 degrees sector, transforms into mirror image relative to the cable (chord). Note here that the smooth wavy vibrations change the plates bending to create repelling force similar to that of a fish tail.

EFFECT: higher turning ability due to traction force created by special-design rudder.

3 cl, 3 dwg

Description

The invention relates to shipbuilding, to active ship steering movers and can be used on surface ships as an active steering wheel and main main engine.

A device is known, US patent 6079348, June 27.2000, a diving apparatus, consisting of an elongated body in which a person is placed, with an elastic connection in at least one part of the body and ending in the back of the body with at least one fin, moving in water with oscillatory movements in the elastic joint and fin. Moreover, the shape of the apparatus changes due to bending in a discrete finite number of elastic joints.

In the present invention, the geometry of the shape of the bend of the elastic plates of the steering wheel pen is forcibly changed, the change occurs smoothly, wavy and continuous throughout the length of the plates.

A device is known, the application for invention No. 94021128 of 06/06/1994, G. Semenov, Russia. The device consists of two elastic reinforced plates arranged parallel to each other, performing asynchronous oscillations and using the inverse action of the wedge to create traction force. With synchronous rotation of the plate act as a steering or braking device.

The present invention is characterized in that the elastic plates of the active rudder-mover are located coaxially in a vertical plane, at a certain distance from each other, and the traction force is created due to the longitudinally-transverse elastic forces of the plates forming the rudder feather, the geometry of the bending shape of which continuously and wave-like changes with oscillatory movements of the balloon in the sector 180 °. If the entire device deviates from the longitudinal axis of the vessel, it acts as an active rudder.

A device is known: “Steering device” (Polytechnical Dictionary, M., “Soviet Encyclopedia”, 1989, p.462) - prototype.

The steering device of the vessel, providing on-the-fly stability and turning of the vessel on the move, includes a steering gear with a tiller drive in the form of a single-arm lever rigidly connected to the head of the balloon, and the feather of the steering wheel in profile shape is flat or streamlined, fixed at the bottom of the balloon.

The disadvantages of the steering wheel should include the fact that it provides low agility of the vessel, since the pen provides passive resistance to the forward movement of the vessel and cannot participate in the creation of traction force.

The aim of the invention is to increase the agility of the vessel by creating traction (traction force) using the steering wheel of a special design.

This goal is achieved by the fact that the rudder plates are used as a mover, making forced oscillations, the geometry of the bending shape of which is forced to smoothly, wave-like changes from initial to critical, which creates traction force, while the rudder feather is made of two elastic, for example, steel, rectangular plates shapes spaced in the same plane vertically at a certain distance, some ends of which are rigidly fixed in the lower part of the baller, and the second ends are connected by a vertical strut, in the middle wherein Asti hinged cable, spaced symmetrically between the elastic plates pen routine in the transverse bore with the sliding axis in the rudder stock and further extending along a longitudinal bore therein up to the cable tensioner axle mounted on the tiller, which is rigidly connected to the upper part of rudder. When the cable is shortened, the plates bend in the form of an arc of a sector of a circle, and with the oscillatory movement of the balloon in the 180 ° sector, the geometry of the form of bending of the plates smoothly, wave-like changes to mirror-symmetric.

Figure 1 shows the device of the active ship steering mover.

The ship steering mover consists of a steering machine 1 performing the same function as in the prototype, but acting not on the baller, but on the steering platform 2, rigidly connected to the cylinder 3 on which the drive is mounted (not shown in FIG. 1 , one of the possible design options is shown in Fig. 3) of the tiller 4 swing, as in the prototype rigidly connected to the head of the baller 5, with a transverse hole with a sliding axis 6 and a vertical longitudinal groove in its body 7, of elastic plates (for example, steel ) rudder feather 8, one the ends of which are rigidly fixed in the lower part of the baller, and the other ends are connected by a vertical strut 9, in the middle part of which a cable 10 pivotally mounted between the plates, stretched through the transverse hole 6 in the baller with the sliding axis and along the longitudinal groove 7 in the baller and fixed on axis 11 of the tension device 12 mounted on the tiller 4, the above details are mounted in the welded cylinder 13 between the deck and the bottom of the aft end of the vessel 14, which serves as a guide for the cylinder 3 of the steering platform 2, the cylinder 3, in turn, is a guide for the balloon 5, mounting bearings 15 and elastic spring plates 16 are also shown. The elastic plates of the rudder feather 8 are attached to the lower part of the balloon together with several elastic spring plates 16 of the same width and thickness, but different and smaller lengths arranged symmetrically on both sides of each elastic plate 8, which prevents breakage of the rudder feathers, rigidly fixed in the lower part of the baller, by increasing the radius of their bending during repeated movements of the tiller (rigidly fixed in the upper part of the balloon) within 180 °.

Active ship steering mover

When the cable tension device 12 (Fig. 1) is rotated, a cable 10 is wound around its axis 11, acting as a variable chord and, shortening, changing the geometry of the bending shape of the elastic plates, which are bent in the form of an arc of a segment of a circle from the initial to critical shape (see Fig. .2, position “a”), with the tiller 4 (rigidly connected to the balloon and through it with the rudder feather plates) will be in the 180 ° position, when the tiller 4 is rotated 90 ° counterclockwise relative to the steering platform 2 shown in FIG. .3, bend geometry pen type 8 smoothly changes in wave form relative to the cable (chords) into large and small segments (position “b”), and with further tiller rotation 4 more 90 ° counterclockwise, the bending geometry of the elastic plates changes smoothly in waves so that the small segment increases, and large decreases and takes on a shape (position “B”, FIG. 2) mirror-symmetric with respect to the original (position “a”, FIG. 2).

When the tiller is rotated in a sector from 0 to 180 ° clockwise, the process of changing the geometry of the bending shape of the elastic plates of the pen is repeated, and such periodic forced vibrations of the plates of the rudder create a repulsive force (traction force) in the water like a fish’s tail, which provides translational movement the vessel due to the elastic longitudinal and transverse forces of the elastic plates of the rudder, which allows you to abandon the main power plant of the vessel.

When the steering platform 2 (Fig. 3) deviates from the longitudinal axis of the vessel to the right or left, together with the tiller drive, the rudder feather also rotates, which simultaneously acts as an active propulsion and steering wheel during forced tiller vibrations in the 180 ° sector relative to the steering platform 2, thereby increasing the rotation vessel.

Note.

1. The method of "oscillation" of the balloon in the sector 180 ° using the tiller (see Figure 2) was chosen by the authors in order to clearly demonstrate the dynamics of changes in the geometry of the shape of the bend of the elastic plates of the rudder pen.

2. Figure 3 shows one of the possible options for the "oscillation" of the baller in the 180 ° sector using a worm gear, when the worm wheel is rigidly fixed in the upper part of the baller, and the screw (worm) associated with it is driven by two electric motors paired with the ends of the axis of the worm and mounted on the steering platform 2, while the engines alternately rotate in opposite directions, controlled by a relay or optoelectronic switch with limit switches and control circuits for the duration and sequence of operation of the electric electric motors.

3. The cable tension device is an asynchronous reversible motor with a gearbox and a disk shutter with a reader, which, when a certain number of pulses is specified, turns on the engine for a certain number of revolutions, while the length of the cable (chords) decreases or increases, changing the geometry of the bending shape of the elastic plates of the pen in the form of an arc of a segment of a circle, from the initial form to the critical one, in which the elastic plates of the pen are still able to take the initial (non-bent) form of equilibrium without permanent deformations during reverse (cable extension).

Claims (3)

1. The steering device of the vessel, providing stability on the course and agility on the move, consisting of a rudder pen, a baller and a steering machine, characterized in that in the active ship rudder the rudder feather is made of two rectangular elastic steel plates spaced vertically at a certain distance , some ends of which are rigidly fixed in the lower part of the baller mounted on a movable platform, and the second are connected by a vertical stand, in the middle part of which a cable is located, located between the plates of the pen and passing further through the baller to the cable tension device, with decreasing length of which the pen plates are forcibly bent in the form of an arc of a circle segment, which, when the vibrations of the bullet in the 180 ° sector, is transformed into a mirror relative to the cable (chords), while smooth wave-like vibrations occur, changing the shape of the bend elastic steel plates so that the longitudinally-transverse elastic forces of the plates in the aquatic environment create a repulsive force (traction force) similar to the tail of a fish. 2. The device according to claim 1, characterized in that the attachment of the elastic plates of the rudder feather to the balloon is carried out together with several elastic spring plates of the same width and thickness, but of different and shorter lengths, located symmetrically on both sides of each elastic plate of the rudder feather. 3. The device according to claim 1, characterized in that the oscillations of the baller within the 180 ° sector are provided by a cylindrical worm gear with a worm wheel rigidly fixed in the upper part of the baller and a worm conjugated with it, on the both sides of the axis of which are connected the shafts of two power motors rigidly mounted on a movable platform having the form of a semicircle, the rotation of which to the right or left relative to the longitudinal axis of the vessel provides its rotation.

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