JPS6099791A - Mechanical bottom treater used in dock - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention is applicable to shipbuilding, both in new shipbuilding and in the repair field.

There are many devices in the known state of the art that serve for mechanized cleaning and rust removal of ship bottoms.

According to US Patent No. 297,527, a movable device is known which can run under the hull of a ship resting on a plank on the bottom of a dock. There is a lever t44#i on this vehicle that is used to move the disk brush rotating about a vertical axis toward the surface.

The disk brush removes fouling organisms as well as paint residue and floating C# from the bottom of the boat.

The defects in this device can now be resolved 1. The main reason for this is that it does not exhibit the quality variation required for preservation by painting. This defect can be eliminated by means of a projection device, with which an almost rust-free bottom surface can be achieved, thus providing the best prerequisites for subsequent conservation measures. This type of movable projection device is disclosed in U.S. Pat. No. 4,092,942.
The temperature is listed in the issue. This device consists of a combination of an instrument carrier and a projection device assembly configured as a J11-band traveling sentry. The instrument carrier has a pair of swingable support arms at the horizontal axis joint, at the distal ends of which the projection device assembly is attached. In this suspension, the projection device assembly makes a pendulum movement about an axis parallel to the swing axis of the support arm pair. It is thus achieved that the projection device assembly is positioned with its exit aperture towards the surface to be treated.

The support arm pair is swung about the axis by the hydraulic cylinder, and the projection device assembly is pressed against the bottom of the ship. This projection assembly has a closed circulation of the projection material, from which the thrown-off dirt and dust particles are separated from each other, and the treated projection material is fed into the projection shaft via a suitable transport device. Continuous rust removal of the bottom of the ship is possible by superimposing the running movement of the tool carrier and the function of the projection device assembly.

A significant disadvantage of the above-mentioned movable projecting devices arises from their suitability primarily for derusting ship bottoms. In particular, in the case of a ship docked for paint renewal after a long period of service, there is a strong amount of clinging organisms on the outer shell, and if this is removed using a projection device, the device will become clogged and will no longer function.

The combined treatment of the ship's bottom is carried out in a partial combined "cleaning" and "1 rust removal" process according to the current state of the art.The equipment and techniques required for this are adapted to the respective treatment process as described above. This appears as a technical solution in which each working implement together with its associated movable implement carrier forms an inseparable functional unit, which cannot be reequipped for different types of processing.

Another shortcoming of the current state of the art is that the working tool received by the support arm of the tool carrier has no need for movement of the workpiece of the projection device assembly onto the workpiece surface as a result of its movability about its pendulum axis. The aim is to ensure that contact ensuring a good seal is only possible in the area of the flat or -axial profile of the bottom of the ship. Therefore, areas of multiaxial molding, especially those in the bow and stern, cannot be accessed with the necessary effectiveness with this tooling technique.

A useful effect which appears when applying the invention compared to the known technical solutions lies in the significant complementation of the composite shipside treatment system by a corresponding technology for the bottom of the ship. This provides the prerequisites for combining the cleaning, derusting and conservation treatment of the ship's hull in the dock with the shortest docking period.

The object of the invention is to provide a device capable of operating on the dock bottom - under the ship's hull, which makes it possible to mechanically clean and/or derust flat, finitely inclined and shaped areas of the ship's bottom. That's true.

According to the invention, this problem is solved by a movable tool carrier that can be equipped for cleaning or derusting using selectively one of several different tools. In this case, the working openings of the side tools are directed toward the bottom of the vessel to be treated.

A rapidly disconnectable cardanic receptacle is mounted in a support arm articulated with the instrument carrier, ensuring rapid exchangeability of the implement.

The cardan structure of this receptacle is such that when the selected working implement is pressed against the ship's bottom with a certain minimum force by the oscillating drive of the support arm, it can be pressed with its working opening into a flat, finitely inclined and shaped area of the ship's bottom. Ensure compliance.

This minimum force is automatically set in conjunction with the contact points arranged around the working port which transmit a signal to the corresponding rocking drive when contacting the bottom of the vessel. The implement is connected to the implement carrier by a connectable conduit to the supply and discharge devices.

An embodiment of the Cardanic receptacle according to the invention is formed from a frame that horizontally surrounds the working implement in its normal position. The frame has two pivot axes that intersect at right angles to each other. - On the force oscillating axis the implement is mounted by a oscillating bearing, and on the other force oscillating axis the frame is accommodated by the support arm of the instrument carrier. The frame is therefore provided with plugs on both corresponding sides, which are inserted into the bearing housing at the free end of the support arm. In this case, these bearing boxes are designed in such a way that the respective working implement can be removed from the implement carrier and inserted into it by means of a suitable hoist. Cardanic housing is molded in the bottom of the ship and allows for greater adaptation of implements to a range of areas.
It also enables effective and reliable bottom treatment.

One feature of the invention relates to a tool for mechanical cleaning of ship bottoms by means of water jets. This implement consists of a horizontal nozzle carrier with a plurality of co-directed jet water nozzles. By means of a crank drive, this nozzle carrier undergoes a reciprocating movement in order to achieve an even cleaning effect over the entire working width. The supply of high-pressure water to the nozzle carrier takes place via high-pressure water hoses connected to respective taps of fixed high-pressure water pipes laid in the dock. The nozzle carrier is surrounded by a housing that is open towards the bottom of the ship. A brush seal surrounding the work opening contacts the bottom of the vessel to accommodate the unobstructed lateral exit of high-pressure water from the work implement. Additionally, the brush pads scrape away any attached organisms that have been loosened by the high-pressure water but are not released.

Another tool for mechanical cleaning of ship bottoms consists of a rotating brush system. This is formed from a brush plate arranged like a scalpel, the latter having its own drive and fitted with several pots. This brush system is also housed in an open housing towards the bottom of the ship. The opening is surrounded by a brush seal.The housing has a distance-keeping device, which allows adjustment of the book suppression to the bottom of the bottom.Brush system to the molded part of the bottom of the bottom. Better contact is achieved by the axially resilient, swingable mounting of the individual urn brushes. Furthermore, the urn brushes are replaceable. This allows for adaptation of the brushes to the type and intensity of soiling. Guaranteed.

Brush cleaning equipment should remove fouling organisms, loose paint, and loose rust from the bottom of the ship.

The working implement for mechanized derusting of ship bottoms is a projectile device with closed projector material circulation. Its important elements are the drive with the projection shaft, the projection shaft housing, the projection chamber and the wear plate. The projection chamber has a working opening facing toward the bottom of the ship, and is surrounded by an elastic backing that prevents the projection material from exiting the work tool.

The projection material that is accelerated by the projection shaft and rebounds from the surface to be treated is received by a collection container and is fed into the projection shaft again. There is a suction branch in the projection chamber, which is connected via a conduit α to the evacuation device located in the instrument carrier. As a result, dust generated in the projection chamber is sucked out in order to avoid blockage of the projection material circulation.

The projection device is equipped with a sensor to detect when the temperature is away from the bottom of the work tool and to suppress the delivery of the projection material to the projection shaft. Loss of projection material is thus reduced.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be explained in detail by way of an embodiment which enables mechanical cleaning and rust removal of the bottom of a ship in dock.The accompanying drawings relate to this embodiment.

Mechanized bottom psychological equipment for ships in dock are instrument carriers (1) and 3.
From/according to the working tools, a jet water flow device 3 for cleaning, a brush cleaning tool 4, and a projection device 2 for rust removal.

The task of the tool carrier is to selectively receive the implement and push it to the bottom of the ship, where it is guided.

In this case, flat and limitedly curved and shaped areas of the bottom of the ship without skin appendages can be treated. The instrument carrier I is a self-supporting vehicle powered by a diesel hydraulic system. A hydraulic pump 6, which is driven by a diesel engine 5 via a comb, an articulation shaft and a pump drive, provides energy for all the drives of the implements and the most important consumers of the implement carrier.

The driving movement is carried out by the front wheels 7 which are hydraulically switched and individually driven via shafts and drives 7. C gets caught.

A working process and a traveling process can be realized by means of the switching drive. In addition, this switching 1. The drive unit serves as a fixed brake when both clutches are engaged.

Control of the moving instrument carrier l takes place via a hydraulic undercarriage.

In order to achieve good performance between the blocks, a three-wheeled vehicle was chosen, with both front wheels 7 being driven individually as described above, and the rear wheels 8 being used for steering.

The rear wheels 8 are constructed as twin wheels with a rigid shaft and a vertical steering axis 9. The hydrostatic energy determined from the steering assembly in the driver's cab 14 is converted into mechanical kinetic energy by two hydraulically actuated cylinders 10 in the rear wheel suspension upper blade.

The actuating cylinders 10 are interconnected by a roller chain 11 which rotates several chain wheels 12 directly on the vertical steering shaft 9 to effect the steering. When driving around a curve, the inner front @drive section is throttled to assist rear wheel steering. This is done by means of a switching valve which is mechanically operated during the corresponding steering by means of a pair of curves 13 which are attached to the chain wheel 12.

The operating and command devices for the tool carrier l and the implements are located on a control desk in the operator's cab 14, easily accessible to the evacuation personnel.

The operator has a reclining seat and is protected from the shadows of the environment in the operator's cab 4. The front central alignment of the operator's cab 14 ensures good visibility of the implements. The peripheral visibility is limited by the horizontal height β of the instrument carrier l. Access to the driver's cabin 14 is only possible from the front using the boarding plate. For this purpose, the steering nozzle 15 and the steering assembly must be folded horizontally. For safety reasons, the operator is equipped with a tiger-seven seat bar. The support arm 16 serves for quick and reliable storage of the work implement. The three types of work implements mentioned above can be selectively accommodated and brought to a desired posture. The support arm 16 is connected to the frame structure of the instrument carrier 1 via a shaft 32 so as to be swingable from a maximum to a minimum working position. The support arm 16 is swung in this direction by the hydraulic cylinder 33.

The rear end of the support arm 16 is connected to a horizontal beam to ensure the parallelism of the support arm 16 when it is swung out laterally.

This swinging motion is caused by one force on the horizontal beam 34 and another force on the axis 3
A mika cylinder word that moves at two joint points is realized.

The cardan-type housing 36, which is the connecting member between the support arm (10) and the implement, ensures contact of the implement to the bottom of the ship even in the area of multi-axis molding. In the posture, the usable frame 37 has two swings 4111 which surround each other horizontally and intersect at right angles to each other.One swing axis is realized through a swing bearing that connects the work tool and the frame 37. .Furthermore, frame 3 is used to realize the second swing axis.
7 is provided with plugs 39 on opposite sides, by means of which a frame 37 supporting the implement is suspended on the free end of the support arm 16. The support arm 6 is therefore provided with an upwardly open bearing housing 40, which facilitates the suspension and removal of the implement by means of a suitable hoist. Safety pin 4
1 prevents the working tool from coming off the instrument carrier 1.

First, the bottom of the ship is cleaned of plant and animal deposits.

Therefore, a jet water flow device 3 is used. The water jet device 3 operates in the dock with high-pressure water under a pressure of approximately 320 bar as a cleaning medium. This high-pressure water is supplied to the equipment carriers through high-pressure water pipes and high-pressure water hoses, which are installed in a fixed quantity in the dock (with the usual connection points).
and thus also to the jet water flow device 3. In the water jet device 3, the medium is distributed to a number of high-pressure water nozzles mounted on the nozzle carrier 27 and blown towards the bottom of the ship. The nozzle A/carrier 1127 is reciprocated via the crank drive 42 at right angles to the running direction of the instrument carrier l, so that all areas of the surface to be treated can be treated with one jet stream. The water jet device 3 is surrounded by a housing 44, with its working port 45 facing toward the bottom of the ship, and with a brush packing 46 in contact with the bottom of the ship. The brush packing 16 prevents the high-pressure jet water flow from exiting the jet water flow device 3. Drainage and dislodged dirt particles flow through the outlet 43 at the bottom of the housing 44]11
] is sent.

The row 247 provided around the working opening 450 guides the jet water jet 11t, 3 along the surface to be treated in conjunction with the Cardan type receiving portion 36 and in conjunction with the vertical swinging of the support arm 16.
The roller 47 then assumes the function of a contact point for the automatic setting of the minimum force for pressing the water jet device 3 onto the bottom of the ship.

A qualitatively better cleaning of the bottom of the ship is achieved using the brush cleaning tool 4. The brush cleaning tool 4 cleans "C" over the entire width of the row.
It consists of four brush plates which are arranged offset from each other for the purpose of cleaning. Each brush plate 4 has its own drive 48;
A 3° pot brush is attached. The urn brushing is axially resilient and swingably mounted. Therefore, it is also possible to clean the narrow space on the bottom of the ship. The pot brush can be replaced with a plastic brush, for example, when the bottom of the boat is extremely dirty.

The brush system is surrounded by a housing 49 with a working opening 50 also pointing towards the bottom of the ship.

In the case of this work tool as well, the working opening 50 is surrounded by a brush packing 51 to prevent cleaning residue generated from being discharged from the working opening 50. Cleaning residue is collected in a dirt receiving box 31 provided at the bottom of the brush cleaning tool 4 and is removed from time to time. Distance JlI retainer 52 ensures the necessary brush suppression via minimum force settings.

In terms of quality, the quality of the mold surface is improved, and the thorough pretreatment of the bottom for the subsequent conservation treatment is achieved by derusting by blasting.

For joint bottom treatment it is therefore necessary, in addition to the tools already described, to use a projection device ffl 2.

The projection device 2 operates using a closed projection system.

The steel leg is in the collecting container 21. Projection device 1ffi2
is pressed against the bottom of the ship and after the projection wheel n is activated, the projection material gate valve is opened and the material slides through the funnel 6i1 to the preliminary accelerator 25, and the latter holds the copper wire piece 20 to the projection wheel 22. . The projection wheel 22 accelerates the steel strips 20 and projects them towards the bottom of the ship, from where the steel wire strips fall back into the collection vessel 21 and return.

The wire piece m is prevented from exiting the temperature projection device 2 by the brush packing 26. The amount of steel wire piece addition that circulates per unit time can be quantified by adjusting the 'rA of the projection material gate valve B. The projection wheel parts are made of cold hard cast iron to avoid mutual wear.
The projection chamber should be lined with a replaceable, low-abrasive material when necessary. A prerequisite for the functionality of the projection device 20 is the suction of any dust generated. This is because otherwise, there is a risk that the gravity transport of the steel wire piece W may stop. For this reason, the projection device 20 is coupled to a corresponding ejection device mounted on the instrument carrier l. Ultra-fine metal 1 produced during rust removal
The silica dust consisting of biological dirt and paint particles is sucked out of the projection chamber of the projection device 20 through the flexible pipe 18 by the suction exhaust fan 17 . The suction/exhaust fan 17 sucks dust-containing air through a dust collector 19 in which dust is captured by a bag filter, and blows purified air to the outside. Dust collector 19
The dust collected inside can be removed by the "c" dust box through the horizontal drip plate.

In order for the projection device 2 to operate without failure, the working port 53 must be in full contact with the bottom of the ship. This is controlled by a sensor 54 in conjunction with the Cardanic receptacle 36 and the automatic minimum force setting for implement suppression, which have already been described. Moreover, the sensor 54 controls the projection material gate valve B so that the feeding of the steel wire piece to the projection wheel 4 is interrupted as soon as the sensor M indicates that the working port 53 is in contact with the bottom of the ship. . This measure, in cooperation with the brushpack station, minimizes the losses of the M-line segments.

With the device according to the invention described above, a solution exists for the first time in which, compared to the state of the art known, it is possible to guarantee a wide range of bottom treatments, even in sloping and shaped areas. Therefore, by manually processing the bottom of the ship, we succeeded in definitively localizing the remaining area in one process. The device significantly reduces the equipment technical burden required for complex processing according to the state of the art.

The results achieved by the invention lead to an increase in the service life of the paint system to be finally applied and reduce the permanent roughness of the wetted surfaces of the ship's hull. This equates to fuel savings for ship operators.

It is conceivable to supplement the above-mentioned tools with instruments for conservation or material testing;

[Brief explanation of drawings]

Fig. 1 is a front view of an instrument carrier equipped with a rust removing device, showing the directional angular movement of the working tool and the lateral rocking of the supporting arm. Fig. 2 is the vertical movement of the working tool and the angular movement in the running direction. Fig. 3 is a side view of the instrument carrier equipped with a rust removal device, showing its properties. Fig. 3 is a top view of the instrument carrier with the exterior removed, showing individual assemblies. Figure 6 shows a vertical cross section of a brush cleaning tool (cleaning tool). l... Instrument carrier 2... Projection device 3... Jet water σ1f, device 1li4...
Brush cleaning tool 5 ... Diesel engine 6 ... Hydraulic pump 7 ... Front wheel 8 ... Rear wheel 9 ... Steering shaft 10 ... Working percentage J cylinder 11 ... Roller chain 12 ...・ Chain wheel 13 ... Curve pair 14 ... Driver's cab 5 ... Steering handle 16 ... Support arm 17 ... Suction exhaust fan 18 ... Flexible piping 19 ... Dust collection Device" ... Steel wire piece 21 ... Collection container n ... Projection ring ... Projection material gate valve A ... Funnel 5 ... Preliminary accelerator A, 46, 51 ... Brush packing n ... Nozzle carrier A ... High pressure water nozzle 29 ... Brush plate 30 ... Urn brush 31 ... Dirt receiving box 32 ... Axis A, A ... Hydraulic cylinder 34 - ... Horizontal beam 36... Cardan type housing section 37... Frame 38... Swing bearing 39... Plug 40... Bearing holder 41... Safety element 42... Crank drive section 43... Outlet 44.49...Housing 45, (2), 53...Working port 47...Roller 48...Drive section 52...Distance holder 54...Sensor funeral 4 Diagram ζm page 1 Continued 0 Inventor Trotzzer Horus German Democratic Republic
Berg 1A 1800 Brandenberg Cheval 1800 Brandenburg Trauer Procedural Amendment January 8, 1982 Manabu Shiga, Commissioner of the Patent Office, Patent Application No. 180867 2, Name of Invention Mechanical bottom treatment for use in docks Equipment Address German Democratic Republic 2500 Rostock l
Doberanasietrace 110/111 Name Volcus Aigna-Betrieg Kombinato Schifbok 4, agent

Claims (1)

[Scope of Claims] l An apparatus for mechanically processing the bottom of a ship in a dock, comprising a movable tool carrier with available support arms, using the support arms to guide working tools along the bottom of the ship to be processed. The device is equipped with a movable instrument carrier (one of which has a working opening directed towards the bottom of the ship) and which can also be oscillated in a limited manner laterally from the center of the instrument carrier. The support arm aQ, which consists of a rust implement and is articulated to the implement carrier (1), has a quick-connectable, flat-bottomed, finitely inclined and Cardanic receptacle (36) ensuring conformity to the molded area
The implement can be suppressed with the minimum force that ensures contact of the working port with the bottom of the ship by the rocking drive of the support arm (56), and the minimum force is the contact point (attached to the circumference of the working port).
The tool is characterized in that it can be automatically set in relation to the number of views) and that the working tool is connected to the supply and discharge device on the tool carrier (1) through a conduit that can be connected and disconnected. device to do. 2. The Cardan type storage part (36) appears as a frame (37) that horizontally surrounds the work tool in the normal posture and is equipped with two swing axes that intersect at right angles to each other, - a force swing axis; This can be realized through a swing bearing that connects the work implement and the frame (37).In order to realize the other swing, a plug (which is attached to the corresponding side surface (complex e) of the frame (37)) is used. 3
9) The (plurality) and the bearing box (4) that enable the removal of the working tool located at the free end of the support arm tte correspond to each other, and the center of the claw of the working tool is located below the swing axis. An apparatus for mechanically treating the bottom of a ship in a dock according to claim 1. 3. The tools for cleaning the bottom of the ship are laid out in a fixed position in the dock.
A horizontal nozzle carrier (27) with a plurality of high-pressure water nozzles (28), which is connectably connected via a high-pressure water hose with a high-pressure water pipe with a number of taps, preferably can be reciprocated perpendicularly to the running direction of the instrument carrier (1) by means of a crank drive section (42), and is open toward the bottom of the ship and sealed against it by a brush seal (26). Claim 1 characterized in that it is surrounded by (44)
Apparatus described in section. 4. Further bottom cleaning implements are provided with a plurality of staggered individual drive units surrounded by housings 09) which are open towards the bottom and sealed against it by brush packings (51). It consists of a brush pan (29), each fitted with a number of urn plaques (3o), and that in the housing (49) there is a distance-keeping device (52) corresponding to the bottom of the vessel, with which a specific brush pressure can be adjusted. An apparatus according to claim 1, characterized in: 5. Device for fertilizing according to claim 4, characterized in that the pot brush (30) is replaceably, axially resiliently and swingably mounted. 6. A working tool for the efficient removal of rust on the bottom of a ship appears as a projecting device (2) with a closed projecting material circulation, the projecting chamber of which is surrounded by an elastic packing, directed towards the bottom of the ship. There is a working opening (53), through which the steel wire pieces (20) rebounding from the bottom of the ship can be delivered via a collecting vessel (21) to the projection shaft (22) located at a lower level, and the projection plan has a suction branch pipe. This is then connected to the instrument carrier (1) via the conduit (18).
2. A device according to claim 1, characterized in that it is operatively connected to a discharge device located within the device. 7. The small moving part of the projection shaft (!2) can be affected by a shadow J# by the sensors (54) in contact with the bottom of the ship, which are attached around the working port (53) of the projection device (2). Feature e' ``The apparatus according to claims 1 and 5, characterized in that