ITPT20090013A1 - AUTOMATISM WITH OLEODYNAMIC CYLINDER FOR THE HANDLING OF THE UNDERWATER SONAR-SOUNDER DETECTOR PLACED ON THE HULL OF BOATS OF ANY TYPE. - Google Patents

Description

DESCRIPTION OF INDUSTRIAL INVENTION entitled "AUTOMATION WITH HYDRAULIC CYLINDER FOR MOVI = MENTATION OF THE UNDERWATER SONAR-SOUNDER DETECTOR PO = STO ON THE HULL OF BOATS OF ANY KIND"

TEXT OF THE DESCRIPTION

The invention refers to a new and original underwater telescopic automatism for the movement and protection of an active or passive sonar-sounder detector for nautical use mounted on the top of the boat hull in order to to highlight the presence and position of boats or roughness of the seabed or icebergs or reefs. The invention has some fundamental and original characteristics: it gives the sonar-sounder a linear movement of absolute precision with an out-of-hull stroke such as to make the detection field particularly wide, it does not have a fixed appendage beyond outside the hull hull, it guarantees the correct protection of the sonar — sounder and its power cable, it is made with simple and reliable technological solutions ·

STATE OF THE ART.

Some vessels, particularly those sailing on polar routes, are equipped with a sonar system for detecting icebergs below sea level. In transport ships the sonar system for underwater obstacle detection is mounted on a fixed connection inside a bow bulb, on boats where such mounting is not possible the instrument is mounted with a fixed connection to the exterior of the hull which de = terminates a permanent appendage which jeopardizes the safety of navigation.

Currently there are automatisms that allow the movement of the sonar detector from the "work" position to the "rest" position which takes place with the sonar housing inside the hull in a niche obtained in the structure of the boat, however the traditional solutions that carry out the movement of the sonar have a series of drawbacks: very limited operating travel from the rest position to the working position outside the hull, the protection of the sonar and not even that of its power cable is not guaranteed in the event of a collision against a submerged obstacle the breaking of the sonar support arm causes permanent deformations to the hull in correspondence with the attack.

TECHNICAL PROBLEM.

Given the extreme importance of the sonar detection system of underwater obstacles during navigation, the purpose of the invention is to provide a system, preferably with simple and reliable technological solutions, which eliminates the drawbacks presented by fixed or moving solutions. so far realized.

Fundamental needs to be solved are those already acc = canned: sonar stroke out of the hull (working stroke = ro) of such length as to make the detection field wider, possibility of canceling the space outside the hull in the rest phase, adequate protections of the sonar and of the power cable, telescopic element designed in such a way that in the active phase the structural resistance against the dynamic action of the liquid mass is certain and at the same time, in the event of collision with a submerged foreign body, offers a critical section of failure before causing permanent deformation to the hull.

SOLUTION OF THE TECHNICAL PROBLEM - DESCRIPTION OF AN IMPLEMENTATION FORM.

The original automatic device constituting the found to support and move the sonar-sounder has been designed to obtain, with simple and reliable technological solutions, the protection and correct use of the instrument together with maximum safety for the boat.

The invention consists of a tubular body (preferably but not exclusively with a rectangular section) with a larger upper chamber with a perfectly watertight seal (one of the fundamental characteristics) and an underlying chamber with the lower base open . The upper sealed chamber contains a linear motion actuator (double-acting hydraulic cylinder) whose stem acts on a telescopic element passing through the lower open chamber and connected to a rigid structure that supports and protects the sonar-sounder with the electrical connection cable

The invention, mounted in the hull hull, has a lower flange for fixing with a movable (bolts) or fixed (continuous welding) connection to a small window made in the hull hull, preferably but not exclusively in the bow and near the center line of the boat: during the active working phase (descending stem) the telescopic element connected to the rigid structure containing the sonar-sounder leaves the lower chamber and reaches the position of maximum distance (stroke) in the liquid medium, during the passive rest phase (. stem asc nulla) the structure containing the sonar-sounder reenters the open ìnf erio = re chamber

The upper sealed chamber, which can be easily inspected, is equipped with a hydraulic locking system to avoid accidental problems with the oleo = dynamic system.

The telescopic element immersed in the liquid mass is able to safely withstand the fluid dynamic stresses (maximum bending moment at the interlocking of the bracket) and however, in the event of a collision against a submerged body of particular volume and hardness, it is designed in such a way such that, before causing permanent deformations to the hull hull, the element itself breaks in correspondence with a critical section foreseen in the design phase.

The hydraulic system includes: a pump, a double-acting linear motion actuator, a regulating valve, a control valve, storage and conditioning of the hydraulic fluid, pipes and tubes, control unit.

In order to detect obstacles not aligned with the boat, the possibility of allowing the telescopic element to rotate 360 ° around its axis is not excluded.

It is not excluded that other Surveying instruments may be coupled to the sonar-sounder or replace the sonar-sounder.

OPERATION.

Detailed description of the invention with reference to the diagrams of the enclosed TABLES 1- 2 - 3, which do not have a limiting character but constitute a significant example of implementation and clarification of the inventive idea.

TABLE 1 (device assembly):

- 1 = open lower chamber flange connected with mobile (bolts) or fixed (continuous welding) junction to the hull hull at a small window made in the hull itself. - 2 upper structure with perfectly sealed chamber A suitable for supporting the telescopic element 3 and connected by means of a junction preferably but not exclusively by means of bolts to the lower open chamber.

- 3 = telescopic element containing the cylinder o = leodynamic 7 and connected to the support 4 of the sonarsounder.

- 4 = support inside which the sonarsounder 5 is housed

- 5 = active or passive sonar-sounder.

- 6 = guide bushing ci; a allows the sliding of the telescopic element 3 and which, thanks to a seals system, makes chamber A perfectly watertight.

7 linear motion actuator (hydraulic cylinder = double-acting] which gives movement to the telescopic element 3 hinged to the upper structure 2

- 8 = key chain that allows the mobile laying of the connection cable 9 of the sonar-sounder 5: this cable is watertight as it exits from the support 4 through a circular passage.

- 9 = connection cable of the sonar-sounder 5 - 10 - hydraulic cylinder that makes the safety lock.

- 11 = guide (anchored to the structure 2) which prevents, by means of the arm 12 constrained to the telescopic element 3, the rotation of the same telescopic element 3 around its own axis.

- 12 = arm linked to the telescopic element 3 - 13 = tank containing a biode = gradable lubricant which, through the tube 14, lubricates the contact surface between the bushing 6 and the telescopic element 3.

- 14 = biodegradable lubricant tube - 15 = manual valve that allows you to check for the presence of water inside the sealed chamber A before opening the inspection doors 16 and 17

- 1 6 and 17 = inspection hatches.

- 1 8 = cap, to be fitted by means of a diver, to carry out extraordinary maintenance operations in the water

The operation of the hydraulic system is entrusted to a hydraulic control unit (not shown in the TA = FLY 1) piloted by an electrical control panel which automatically manages the outflow and return of the telescopic element by detecting the end-of-stroke positions thanks to two electro-magnetic sensors (or other types) and providing for the automatic insertion of the safety lock when the telescopic element is in the rest position *; TABLE 2 (section on the guide and seal bushing):; - 2 = upper structure housing the bushing 6, - 3 - telescopic element. ; - 6 = bushing which allows the guide of the telescopic element 3: the perfectly watertight seal of the bushing 6 on the structure 2 is achieved by means of the gasket Sa; - Sa = gasket; - 6b - scraper which eliminates impu = rites present on the cylindrical surface of the telescopic element 3 at the moment of re-entry. ; - If e 6d = gaskets for the perfectly watertight seal between the bushing 6 and the telescopic element 3. - Se = groove obtained in bushing 6 for the lubrication of the sliding surfaces: the lubrication is obtained by introducing into the groove If a lubricating fluid fed through the nozzle 14a This lubricating fluid helps to avoid the formation of oxides on the sliding surfaces and considerably increases the life of the seals.

TABLE 3 (detail of the telescopic element):

- 3 = telescopic element with internal lightening 3a

- 3a = internal course of the lightening of the telescopic element 3. The shape and dimensions of the = the lightening are of considerable importance for the purposes of structural rigidity to allow the perfect functionality of the sonar-sounder which in the working phase = ro must be well fixed and free from vibrations furthermore in the event of an impact against a submerged foreign body, the telescopic element must have a critical section of breakage before permanent deformations occur in the upper chamber and in the same living work of the boat: for this reason the methods of construction science are used for the choice of the material and for the sizing of the lightening.

BENEFITS ,

The invention has all the advantages envisaged in the design phase:

- Absence of an appendix outside the existing work of the boat;

- Working stroke of the sonar-sounder of such an extent as to make the detection field particularly wide;

- Sonar-sounder in the rest phase housed in a room fixed in a small window made in the hull of the vessel;

- Perfect protection of the sonar-sounder and of the power cable against the liquid mass;

- Safe structural resistance of the telescopic element against hydrodynamic forces and failure in a critical section foreseen in the event of impact against a submerged foreign body before causing permanent deformations to the hollow work;

- Simple technological solutions

- Reliability of operation;

- Ease of operation.

The invention possesses intact the attributes of novelty, originality, industriality, lawfulness.

VARIANTS.

The invention does not exclude the following variants which are also capable of controlling a telescopic element for moving the sonar-sounder:

- Central telescopic element controlled by two side double acting oleodynamic cylinders;

- Traditional kinematic pairs that transform the uniform circular motion of an electric gearmotor into reciprocating rectilinear motion (reel-rod, connecting rod-crank, eccentric, cam, etc.)

Claims (1)

-1) Industrial invention patent entitled "AUTOMATION WITH HYDRAULIC CYLINDER FOR THE MOVI MEN TAZ IONE OF THE UNDERWATER SONAR-SOUNDER DETECTOR PLACED ON THE HULL OF BOATS OF ANY TIFO" characterized by the fact that it refers to an original telescopic automatism controlled by a hydraulic cylinder for the movement and protection of an underwater sonar-sounder detector (active or passive) for nautical use mounted on the hull of the boat, technologically simple and reliable, which cancels the drawbacks presented by the fixed or moving solutions implemented up to now. - 2) Telescopic automatism for sonar-sounder su- = bacqueo as in the previous claim is characterized by the fact that it gives the instrument a linear movement of absolute precision with a stroke outside the hull such as to make the detection field particularly wide, not has a fixed appendix outside the hull, guarantees perfect protection of the sonar-sounder and of the power cable. -3) Telescopic automatism for sonar-sounder as per the preceding claims and characterized by the fact that it is constituted by a tubular body (preferably but not exclusively with a rectangular section) with a large upper chamber with a perfectly watertight seal and a lower chamber with the lower base open and therefore in contact with the liquid mass. The type, shape and size of the tubular body and the two chambers can be whatever, the connection between the two chambers -4) Telescopic automatism for sonar-sounder on bacqueo as per the previous claims and characterized by the fact that the upper sealed chamber contains a double-acting hydraulic cylinder (hinged to the tubular body) whose stem acts on an element telescopic passing through the open lower chamber and connected to a rigid structure that supports and protects the sonar-sounder and the power cable The shape and dimensions of the telescopic element and of the rigid structure that supports and protects the sonar-sounder can be of any type. -5) Telescopic automatism for underwater sonar-sounder as in the previous claims and characterized by the fact that it is mounted on the hull hull and has a flange for fixing with mobile (bolts) or fixed (continuous welding) connection to a small window preferably made in the bow in the same hull: during the active phase of la = vero (descending stem) the telescopic element connected to the rigid structure containing the sonar-soun der leaves the lower chamber and reaches the maximum distance in the mass liquid, during the passive rest phase (ascending stem) the rigid structure containing the sonar-sounder re-enters the lower open chamber. In order to detect obstacles not aligned with the boarding: not; the possibility of allowing the telescopic element to rotate 360 ° around its own axis is excluded; It can be of any type: the connection of the device to the hull, -6) Telescopic automatism for underwater sonar-sounder as per the previous claims and characterized by the fact that the telescopic element is able to withstand the fluid dynamic stresses and however, in the event of an impact against a submerged body, it is designed in such a way that before permanent deformations are caused to the hull hull, the element itself breaks at a critical section due to the presence of a convenient reduction of the resistant section: this "lightening of the section can be of any kind. -7) Telescopic automatism for underwater sonar-sounder as per the preceding claims and characterized in that the following variants are equivalent to the invention, capable of controlling a telescopic element for moving the sonar-sounder while the previously described characteristics remain unchanged (absence of a 'fixed appendix outside the hull, upper sealed chamber, lower open chamber, perfect protection of the sonar-sounder and of the power cable, critical section for breakage): central telescopic element controlled by two double hydraulic cylinders side effect, traditional nematic pairs that transform the uniform rota = thorium motion of a gearmotor into a neo-reciprocating reptilian motion. -8) Telescopic automatism for sonar-sounder as in the preceding claims and characterized by the fact that other detection instruments can be coupled to the sonar-sounder or replace the sonar-sounder. -9) Telescopic automatism for sonar-sounder as in the previous claims and characterized by the fact that they can be of any type: the shape and dimensions of the single components, the typology of the single components, the materials and the assembly of the single components components. -10) Telescopic automatism for sonar-sounder su = bacqueo as in the previous claims, as described in the present report and represented in the enclosed TABLES 1 - 2 - 3 which do not have a limiting character but constitute any solution suitable for better clarify the characteristics of the found.