CN214190056U - Marine jet vector steering device - Google Patents

Abstract

The utility model relates to a marine injection vector turns to device. The conventional jet type propeller uses a plurality of rudder blades, and the ship body is burdened by a plurality of steering engines for controlling the rudder blades or a linkage device between the rudder blades, resulting in additional power consumption. The utility model discloses a device can alleviate moment of torsion pressure and reduce the consumption simultaneously with single high-efficient whole rivers direction that changes the injection pipe of rudder blade. The apparatus may include: the jet pipe is provided with a cylindrical shell, and the tail end of the shell is provided with two inclined U-shaped openings which are axisymmetric and the cutting surface and the radial cross section of the jet pipe form an included angle of 45 degrees; the clamping groove is arranged on the central axis of the injection pipe and is positioned at the junction of the U-shaped opening and the shell; a rudder blade mounted in the slot via a rotation shaft, wherein the rudder blade has a U-shaped region inside the housing and a rectangular region outside; and the steering engine drives the rudder blade to rotate within +/-45 degrees of the central axis, so that the direction of all water flow in the jet pipe is changed through the rudder blade.

Description

Marine jet vector steering device

Technical Field

The utility model relates to a boats and ships, naval vessel or other boats and ships on water especially relate to marine injection vector that uses on ship/ship and turn to device.

Background

Jet-type propellers are currently widely used on small boats, turning in ways such as: I. differential steering of the double propellers; II, steering the propeller by combining a rudder blade; rotatable propeller steering. The conventional jet type propeller has a complicated structure and a large number of related components, resulting in difficulty in installation. The torque generated by the water flow pressure on the rotating shaft during steering of the traditional rudder blade directly acts on the steering engine, so that huge power consumption is caused. When a plurality of rudder blades are used, the load of the ship body is increased due to the fact that a plurality of steering engines are needed to control the rudder blades or a linkage device between the rudder blades is needed, and additional power consumption and a weak structure are caused. The conventional rotating shaft is fixed by a single point, and the rudder blade is difficult to fix due to the single point stress of the rotating shaft. Furthermore, the steering engine controlling the propeller is usually placed inside the cabin so that the rotating shaft has to pass through the cabin, which requires a delicate waterproofing process to avoid flooding the cabin.

US3961591A discloses the use of a plurality of pivoting steering nozzles linked to generate a steering force. US5642684A provides an improved thrust director unit in which at least two guide vanes are movable together within a housing outlet and cooperate to form an exhaust flow path that is directionally adjustable to produce selective thrust in a lateral direction or to selectively jet flow in a forward or rearward angled direction to produce reverse or forward propulsive thrust, respectively.

The utility model discloses it can provide a marine injection vector turns to device to solve following problem simultaneously: the simple structure of a single rudder blade is used for efficiently changing all water flow directions in the jet pipe, so that the torque pressure of the rotating shaft is reduced, the power consumption of the steering engine is reduced, and the fixed installation of the rotating shaft and the water resistance of the steering engine are improved.

SUMMERY OF THE UTILITY MODEL

The present disclosure is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. The present disclosure is not intended to identify key features or essential features of the claimed subject matter; nor is it intended to be used as an aid in determining or limiting the scope of the claimed subject matter.

The utility model relates to a marine injection vector turns to device, include: the injection pipe is provided with a cylindrical shell, the tail end of the shell is provided with two inclined U-shaped openings which are axially symmetrical, and the cutting surfaces of the two U-shaped openings form an included angle of 45 degrees with the radial cross section of the injection pipe; a clamping groove arranged on the central axis of the injection pipe and located at the intersection of the U-shaped opening and the shell; the rudder blade is arranged in the clamping groove of the injection pipe through a rotating shaft, wherein the rudder blade is divided into a U-shaped area and a rectangular area by taking the rotating shaft as a boundary, the U-shaped area is positioned in the shell, and the rectangular area is positioned outside the shell; and the steering engine is configured to drive the rudder blade to rotate between an angle of-45 degrees and 45 degrees with the central axis, so that the direction of all water flow in the jet pipe is changed through the rudder blade. Wherein the rudder blade is rotated clockwise 45 degrees when the rudder blade is at a maximum angle of-45 degrees such that the U-shaped area is fully aligned with a respective one of the U-shaped openings; when the rudder blade is at a maximum angle of 45 degrees, the rudder blade is turned 45 degrees counter clockwise so that the U-shaped area is perfectly aligned with the other of the U-shaped openings. Wherein, in the case where the injection pipe radius is R, the U-shaped region of the rudder blade has a shape equivalent to a half ellipse obtained by equally dividing an ellipse defined by a semi-minor axis R and a semi-major axis √ 2R with the semi-minor axis as a symmetry axis.

In an embodiment of the invention, the steering engine may be arranged outside the cabin. The steering engine may communicate with equipment inside the cabin via a data line, and the data line is water-tight via a watertight connector.

Drawings

A more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. The use of the same reference numbers in different figures indicates similar or identical items or features.

Fig. 1 is a perspective view of a side down view angle of a marine jet vector steering apparatus according to the present invention;

fig. 2 is a top view of a marine jet vector steering apparatus according to the present invention;

fig. 3 is an exploded view of a marine jet vector steering apparatus according to the present invention;

fig. 4 is a partial schematic view of a rudder blade of a marine jet vector steering apparatus according to the present invention;

fig. 5 is a schematic view of a marine jet vector steering device according to the present invention with the rudder blade thereof forming an angle of-45 degrees with the central axis of the jet pipe;

fig. 6 is an overall schematic view of the marine jet vector steering apparatus according to the present invention with a marine vessel; and

fig. 7 is a flow chart of the operation control of the marine jet vector steering apparatus according to the present invention.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

The structural composition of the marine jet vector steering apparatus of the present invention will be described first with reference to fig. 1 to 4. Fig. 1-4 are side top perspective, side, exploded and partial views, respectively, of a marine jet vector steering apparatus according to the present invention.

The utility model discloses a marine injection vector turns to device includes injection pipe 301, steering wheel 302, draw-in groove 303 to and rudder blade 304. The ejector tube 301 has a cylindrical housing with two U-shaped openings at the end of the cylindrical housing in axial symmetry, and the cutting surfaces of the U-shaped openings are at an angle of 45 degrees to the radial cross section of the ejector tube (as shown in fig. 2). The cut surface of the U-shaped opening has the same shape as a half ellipse obtained after axisymmetric bisection of an ellipse defined by a semiminor axis R and a semimajor axis √ 2R with its semiminor axis as an axis of symmetry, as shown by the solid line part in fig. 4. The ejector tube 301 has a central axis substantially parallel to the bow axis. The snap groove 303 is disposed on the central axis of the ejector tube and is located at the intersection of the U-shaped opening and the cylindrical housing (e.g., the outer wall of the ejector tube). The rudder blade 304 is mounted in a notch 303 on the jet pipe 301 via a rotating shaft 305. As shown by a dotted line in fig. 3, the rudder blade 304 is divided into a U-shaped area a and a rectangular area b with the rotation axis 305 as a boundary. In the case where the jet pipe radius is R, the U-shaped region a of the rudder blade has the same shape as a half ellipse obtained after axisymmetric bisection of an ellipse defined by a semiminor axis R and a semimajor axis √ 2R with its semiminor axis as an axis of symmetry, as shown by the solid line portion in fig. 4. Thus, the cutting surface of the jet pipe U-shaped opening conforms to the shape of the U-shaped area of the rudder blade and may be perfectly aligned (e.g., coincident, overlapping, etc.). Steering engine 302 may be placed outside the hold and mounted in a watertight slot in the upper end of the jet pipe. Steering engine 302 may drive rudder blade 304 to rotate via rotating shaft 305. The U-shaped area a of the rudder blade 304 is located inside the cylindrical housing of the ejector tube and the rectangular area b is located outside the cylindrical housing of the ejector tube. This axis of rotation 305 can be at the draw-in groove 303 internal rotation, and its position is fixed by two draw-in grooves 303 from top to bottom, and the both ends atress simultaneously can provide great reaction force, has improved the fixed mounting problem of axis of rotation simultaneously.

Fig. 5 is a schematic view showing a rudder blade of the marine jet vector steering apparatus at an angle of-45 degrees to a central axis of the jet pipe.

When normally traveling, the steering wheel can drive the rudder blade and be 0 degree contained angle or less contained angle with the central axis of injection pipe, can not cause the hindrance to rivers from the outflow of injection pipe afterbody. When the steering is needed, the steering engine can drive the rudder blade to rotate between an angle of minus 45 degrees and 45 degrees with the central axis of the jet pipe. The rudder blade forms an included angle of-45 degrees with the central axis of the jet pipe, namely the rudder blade is rotated by 45 degrees clockwise, so that the U-shaped area a is completely aligned with the U-shaped opening of the jet pipe to form a closed and continuous blocking area, the flow of water flow in the direction is blocked, and the water flow in the direction is deflected to leave from the other U-shaped opening; conversely, a rudder blade at an angle of 45 degrees to the central axis of the jet pipe means that the rudder blade is turned 45 degrees counter-clockwise so that the U-shaped area a is perfectly aligned with the other U-shaped opening of the jet pipe and forms a closed and continuous blocking zone, blocking the flow of water in that direction and diverting the flow of water in that direction. The water flow is correspondingly dispersed after being sprayed from the spray pipe, and the water flow direction can be changed more efficiently by reflecting the water flow by using a rectangular area with a slightly larger area. For example, with the direction of the bow as the front, the water flow in the jet pipe impacts a rudder blade with an included angle of-45 degrees, the water flow is jetted out from the U-shaped opening at an angle of 90 degrees with the original direction according to the reflection principle, and the reaction force generated by the change of the flow direction of the water flow realizes the operation of turning the ship body to the right; in the same way, the operation of steering to the left can be realized.

In an embodiment of the present invention, shown in fig. 5, the water flow in the jet pipe is shown visually as a and B, as one skilled in the art can appreciate, the water flow may occupy the entire jet pipe and is not limited to only a and B. When the water flows A and B impact the rudder blade with an included angle of-45 degrees, the water flow A impacts the U-shaped area a, the water flow A changes the flow direction and is shown as A 'after being reflected by the rudder blade, the water flow B changes the flow direction and is shown as B' after being reflected by the rudder blade, and the water flow A 'and the water flow B' are jetted out from the U-shaped opening at the other side of the jet pipe at an angle of 90 degrees with the water flow A and the water flow B, so that the best effect of turning right is achieved. In another embodiment, the water stream can impact the rudder blade with an included angle of 45 degrees, so as to achieve the best effect of turning left. Therefore, the marine jet vector steering device can change the direction of all water flow in the whole jet pipe through a single rudder blade, and is simple to operate and high in working efficiency. The single rudder blade and the injection pipe can be used as a whole to be matched for operation, the structure is simple and firm, the damage is not easy to occur, and the practicability is higher. The ship body load is further reduced because only a single steering engine is needed to control a single rudder blade and no linkage device between the rudder blades is needed.

As known to those skilled in the art, a conventional rudder blade only includes a rectangular area b and a rotating shaft, and when the rudder blade is driven by a steering engine to steer, a torque generated by water pressure on the rotating shaft directly acts on the steering engine, resulting in huge power consumption. The utility model discloses an among the marine injection vector turns to device, the U-shaped region an and the rectangular region b of rudder blade make the axis of rotation both sides receive the rivers pressure of equidirectional simultaneously, and this offsets with axis of rotation reaction force, and to a great extent has alleviateed torque pressure to the steering wheel consumption has been reduced.

Fig. 6 is an overall schematic view of a marine jet vector steering apparatus and an external boat according to the present invention. The marine jet vector steering device may be attached to the hull of the vessel by any means known to those skilled in the art, and is preferably mounted aft of the hold, including but not limited to fixed (e.g., nuts) or removably mounted (e.g., slots, connectors, etc.).

The operation of the marine jet vector steering device is performed by a control system, and the control system comprises a control chip installed in a cabin and a program operated on the control chip. The steering engine may be arranged outside the cabin, inside the rudder cabin which may be waterproof. The steering engine may communicate with equipment inside the cabin, such as a control system, via data lines, which may be water-tight via watertight connectors.

Arrange waterproof steering wheel in the cabin outside, compare in cabin installation axis of rotation of digging a hole, have following advantage: the difficulty of installation and waterproof technology (such as hydraulic oil seal waterproof) is greatly reduced, so that the installation cost of the steering engine and the rudder blade is greatly saved; the steering engine can be directly cooled by water flow, and a cooling system for the steering engine is not needed, so that the cost is saved; can have larger operation space and visual field, and is convenient for maintenance or replacement.

Fig. 7 is a flow chart of a method of operating a marine spray vector steering apparatus according to the present invention. The following description is made with the bow direction as the front.

At 701, when the vehicle runs normally, the rudder blade and the central axis of the jet pipe form an included angle of 0 degree or a smaller angle.

At 702, when the ship needs to turn left, the steering engine drives the rudder blade to form a 45-degree included angle with the central axis of the injection pipe.

At 703, when the ship needs to turn right, the steering engine drives the rudder blade to form an included angle of-45 degrees with the central axis of the injection pipe.

The utility model discloses a marine injection vector turns to device simple and practical, easily installation, can solve following problem simultaneously: the simple structure of a single rudder blade is used for efficiently changing all water flow directions in the jet pipe, so that the torque pressure of the rotating shaft is reduced, the power consumption of the steering engine is reduced, and the fixed installation of the rotating shaft and the water resistance of the steering engine are improved.

The detailed description set forth above in connection with the appended drawings describes examples and is not intended to represent all examples that may be implemented or fall within the scope of the claims. The terms "example" and "exemplary" when used in this specification mean "serving as an example, instance, or illustration," and do not mean "superior or superior to other examples.

Reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, usage of such phrases may not refer to only one embodiment. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

While various embodiments have been illustrated and described, it is to be understood that the embodiments are not limited to the precise configuration and components described above. Various modifications, substitutions, and improvements apparent to those skilled in the art may be made in the arrangement, operation, and details of the systems disclosed herein without departing from the scope of the claims.

Claims (6)

1. A marine jet vector steering apparatus, comprising:

the injection pipe is provided with a cylindrical shell, the tail end of the shell is provided with two inclined U-shaped openings which are axisymmetric, and the cutting surfaces of the U-shaped openings and the radial cross section of the injection pipe form an included angle of 45 degrees;

a catch disposed on a central axis of the ejector tube at an intersection of the U-shaped opening and the housing;

the rudder blade is arranged in the clamping groove of the injection pipe through a rotating shaft, the rudder blade is divided into a U-shaped area and a rectangular area by taking the rotating shaft as a boundary, the U-shaped area is positioned in the shell, and the rectangular area is positioned outside the shell; and

a steering engine configured to drive the rudder blade to rotate between-45 degrees and 45 degrees from the central axis such that the rudder blade changes the direction of the total water flow in the jet pipe.

2. The marine jet vector steering arrangement of claim 1,

in the case of a radius of the injection pipe of R, the U-shaped region of the rudder blade has a length which is equal to the length of the half-axis R and the half-axis R

The defined ellipse, the half ellipse obtained after bisection with its minor semi-axis as the axis of symmetry, is the same shape.

3. The marine jet vector steering arrangement of claim 2,

the cutting surface of the U-shaped opening has the same shape as the U-shaped area.

4. The marine jet vector steering arrangement of claim 3, further comprising:

when the rudder blade is at a maximum angle of-45 degrees, the rudder blade is turned clockwise 45 degrees such that the U-shaped areas are fully aligned with a respective one of the U-shaped openings;

when the rudder blade is at a maximum angle of 45 degrees, the rudder blade is turned 45 degrees counter clockwise so that the U-shaped area is perfectly aligned with the other of the U-shaped openings.

5. The marine jet vector steering arrangement of claim 1, further comprising:

the steering engine is arranged outside the cabin.

6. The marine jet vector steering arrangement of claim 5,

the steering engine communicates with equipment inside the cabin via a data line, and the data line is water-tight via a watertight connector.

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