NO135217B - - Google Patents

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Publication number
NO135217B
NO135217B NO750320*[A NO750320A NO135217B NO 135217 B NO135217 B NO 135217B NO 750320 A NO750320 A NO 750320A NO 135217 B NO135217 B NO 135217B
Authority
NO
Norway
Prior art keywords
winch
motor
pump unit
hydraulic
pressure
Prior art date
Application number
NO750320*[A
Other languages
Norwegian (no)
Other versions
NO750320L (en
NO135217C (en
Inventor
K Jakobsen
Original Assignee
Norcem As
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Norcem As filed Critical Norcem As
Priority to NO750320A priority Critical patent/NO135217C/no
Priority to DK30776AA priority patent/DK137264B/en
Priority to FI760243A priority patent/FI760243A/fi
Priority to GB4007/76A priority patent/GB1519402A/en
Priority to FR7602796*[A priority patent/FR2299132A1/en
Priority to SE7601074A priority patent/SE404591B/en
Priority to ES444855A priority patent/ES444855A1/en
Priority to DE2604037A priority patent/DE2604037A1/en
Priority to JP51010086A priority patent/JPS51102017A/ja
Publication of NO750320L publication Critical patent/NO750320L/no
Publication of NO135217B publication Critical patent/NO135217B/no
Publication of NO135217C publication Critical patent/NO135217C/no

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/28Cores; Mandrels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/34Moulds, cores, or mandrels of special material, e.g. destructible materials
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
    • E04B5/043Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement having elongated hollow cores

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Fluid-Pressure Circuits (AREA)

Description

Anordning for hydraulisk vinsj anlegg til forhaling og fortøyning av skip. Device for hydraulic winch system for hauling and mooring ships.

Foreliggende oppfinnelse angår en anordning ved hydraulisk vinsj anlegg til forhaling og fortøyning av skip. Når det gjel-der vinsjer av denne art er det tidligere The present invention relates to a device for a hydraulic winch system for hauling and mooring ships. When it comes to winches of this kind, it is earlier

foreslått konstruksjoner og utførelsesfor-mer som automatisk kan gi ut eller hive inn proposed constructions and designs that can automatically release or retract

fortøyningstrosser alt etter tidevannets mooring lines depending on the tide

høyde og skipets dypgående etter hvert som height and the ship's draft over time

lasting eller lossing skrider frem. loading or unloading is progressing.

Når det anvendes hydrauliske vinsjer, When hydraulic winches are used,

drives disse av en hovedpumpe, og det trykk these are driven by a main pump, and that pressure

man stiller inn for det hydrauliske drivmedium bestemmer så strekket i trossen setting the hydraulic drive medium determines the tension in the rope

som holdes tilnærmet konstant selv om which is kept approximately constant though

skipets dypgående etterhvert øker eller the ship's draft gradually increases or

minsker ved lasting eller lossing. For å decreases when loading or unloading. In order to

kunne ta inn eller hive ut fortøyningstrosse able to take in or pull out the mooring line

under disse forhold må det hydrauliske anlegg hele tiden være i drift, og dette byr under these conditions, the hydraulic system must be in operation at all times, and this offers

på den ulempe ved de kjente anlegg at en on the disadvantage of the known facilities that a

kraftig pumpeenhet som f. eks. har en elek-tro-motor på 65 Hk og som er nødvendig powerful pump unit such as has an elek-tro engine of 65 Hp and which is necessary

for forhaling av fartøyet fortsatt må være for the delay of the vessel must still be

i drift sålenge fartøyet ligger fortøyet selv in operation as long as the vessel is moored itself

om det da ikke krever med enn 5 Hk ytelse. if it then requires no more than 5 HP performance.

Resultatet av dette er at en kostbar motor-pumpeenhet for det hydrauliske anlegg er The result of this is that an expensive motor-pump unit for the hydraulic plant is

i drift for å yte kanskje 5 Hk og ikke kan in operation to provide maybe 5 Hp and cannot

benyttes til andre formål ombord, f. eks. used for other purposes on board, e.g.

ved drift av lastevinsjer. when operating cargo winches.

Hensikten med foreliggende oppfinnelse er å oppheve denne ulempe, noe som The purpose of the present invention is to eliminate this disadvantage, which

er oppnådd ved at det hydraulisk drevne is achieved by the hydraulically driven

vinsj eanlegg som omfatter en stor kraftig winch system which includes a large powerful

pumpeenhet, på en hensiktsmessig måte er pump unit, in an appropriate way is

tilkoplet et mindre, hydraulisk pumpe- connected to a smaller hydraulic pump

aggregat med vesentlig mindre kapasitet enn hovedpumpen, beregnet på å opprett-holde et passe strekk i fortøyningstrossene. På denne måte kan den store kraftige motor-pumpeenhet anvendes for andre formål slik at enheten kan utnyttes fullt ut og ikke beslaglegges bare til fortøyningen. unit with a significantly smaller capacity than the main pump, designed to maintain a suitable tension in the mooring lines. In this way, the large, powerful motor-pump unit can be used for other purposes so that the unit can be fully utilized and not seized only for the mooring.

Det er fra forskjellige felter kjent å kople inn ett eller flere aggregater etter behov til drift av en maskin, og disse aggregater kan godt være av forskjellig størrelse, men det er ikke dette som er bakgrunn for foreliggende oppfinnelse. Oppfinnelsen be-står, som neynt, i å nyttiggjøre seg en kraftig motor-pumpeenhet når det ikke lenger er behov for alt arbeid den kan utføre bare til å holde fartøyet fortøyet. It is known from various fields to connect one or more aggregates as needed to operate a machine, and these aggregates may well be of different sizes, but this is not the background of the present invention. The invention consists, as mentioned, in making use of a powerful motor-pump unit when there is no longer a need for all the work it can perform just to keep the vessel moored.

Oppfinnelsen angår således en anordning ved hydraulisk vinsj anlegg til forhaling og fortøyning av skip, omfattende en vinsj - motor som under forhalingsoperasjonen drives av et hovedaggregat hvis overflødige drivmedium ledes tilbake til sugesiden gjennom en innstillbar ventil koblet i parallell med vinsj motoren, og den er i det vesent-lige kjennetegnet ved at det parallellt med hovedaggregatet er anordnet et ytterligere hydraulisk pumpeaggregat med vesentlig mindre kapasitet enn hovedaggregatet, hvilket ytterligere pumpeaggregat leverer drivmedium til vinsj motoren under mooring, hvorved hovedaggregatet frigjøres for eventuell annen vinsj drift, f. eks. lasting og lossing, og at det i vinsj motorens trykkledning er anordnet et trykkfølsomt organ som påvirker drivmotoren for det ytterligere pumpeaggregat. The invention thus relates to a device for a hydraulic winch system for hauling and mooring ships, comprising a winch motor which during the hauling operation is driven by a main unit whose excess propellant is led back to the suction side through an adjustable valve connected in parallel with the winch motor, and it is in the essential characteristic in that an additional hydraulic pump unit with a significantly smaller capacity than the main unit is arranged parallel to the main unit, which additional pump unit supplies drive medium to the winch motor during mooring, whereby the main unit is freed for any other winch operation, e.g. loading and unloading, and that a pressure-sensitive organ is arranged in the winch motor's pressure line which affects the drive motor for the additional pump unit.

Andre trekk og detaljer ved oppfinnel- Other features and details of invention

sen vil fremgå av den følgende beskrivelse under henvisning til tegningen som skjema- then will appear from the following description with reference to the drawing as schematic

tisk viser et hydraulisk drevet vinsj anlegg til forhaling og fortøyning av skip, utført i henhold til oppfinnelsen. 1 betegner en hydraulisk pumpe med oljereservoar 2 og elektrisk motor 3 f gr drift av pumpen 1. Gjennom en tilbakeslagsventil 4 føres det hydrauliske medium gjennom en ledning 5 figure shows a hydraulically driven winch system for hauling and mooring ships, made in accordance with the invention. 1 denotes a hydraulic pump with oil reservoir 2 and electric motor 3 for operation of the pump 1. Through a non-return valve 4, the hydraulic medium is fed through a line 5

til selve vinsjen og gjennom en ledning 7 to the winch itself and through a wire 7

tilbake fra denne til reservoaret 2. En regu-leringsventil 8 er ved hjelp av ledninger 9 back from this to the reservoir 2. A control valve 8 is by means of lines 9

koplet parallellt med vinsjen for omledning av hydraulisk drivmedium som står under trykk. Dette trykk innstilles ved hjelp av reguleringsventilen 8, hvormed man bestemmer strekket i trossen 10. connected in parallel with the winch for the diversion of pressurized hydraulic drive medium. This pressure is set using the control valve 8, which determines the tension in the rope 10.

I henhold til oppfinnelsen er det i tilslutning til den vanlige motor-pumpe- According to the invention, in addition to the usual motor-pump

enhet 1, 2, 3 anordnet en ytterligere hydrau- unit 1, 2, 3 arranged a further hydraulic

lisk pumpe 11 som drives av en elektrisk motor 12. Denne ytterligere motor-pumpe- ical pump 11 which is driven by an electric motor 12. This further motor-pump

enhet 11, 12 skal overta leveringen av hyd- unit 11, 12 will take over the delivery of hyd-

raulisk drivmedium til vinsjen 6 når denne bare skal sørge for tilstrekkelig stramning av trossen etterat fartøyet er forhalt til den ønskede stilling. Når pumpeenheten 11, 12 raulic drive medium for the winch 6 when this is only to ensure sufficient tightening of the hawser after the vessel has been brought to the desired position. When the pump unit 11, 12

overtar, kan pumpeenheten 1, 2, 3 koples fra den hydrauliske vinsj og benyttes til drift av annet utstyr. takes over, the pump unit 1, 2, 3 can be disconnected from the hydraulic winch and used to operate other equipment.

Den elektriske motor 12 er videre for- The electric motor 12 is further

trinsvis polomkoplbar slik at dens omdrei- incrementally pole-switchable so that its rotation

ningstall vil være f. eks. 600 eller 1800. number will be e.g. 600 or 1800.

Denne polomkobling foretas av en bryter 13 This pole connection is made by a switch 13

som når trykket i ledningen 5 når en be- which when the pressure in line 5 reaches a be-

stemt høyde, kopler om til den laveste has- tuned height, switches to the lowest has-

tighet mens den, hvis trykket faller, kopler om til høyeste hastighet. Hvis det således skulle opptre plutselig slakk i trossen 10 speed while, if the pressure drops, it switches to the highest speed. If there should thus be sudden slack in the bridle 10

vil trykket falle og bryteren 13 vil kople om polene slik at motoren 12 vil gå med høyeste hastighet og levere tilstrekkelig oljemengde til at denne slakk tas hurtig inn. Hvis på den annen side en plutselig stramning skulle inntre ville vinsjen 6 bli trukket i motsatt retning og den vil «pumpe» olje gjennom reguleringsventilen. the pressure will drop and the switch 13 will switch the poles so that the motor 12 will run at the highest speed and deliver a sufficient quantity of oil so that this slack is taken up quickly. If, on the other hand, a sudden tightening were to occur, the winch 6 would be pulled in the opposite direction and it would "pump" oil through the control valve.

Trykket vil imidlertid da stige i ledningen 5 However, the pressure will then rise in line 5

og motoren 12 vil gå ned på laveste has- and the engine 12 will go down to the lowest has-

tighet slik at oljemengden som må passere reguleringsventilen 8 vil bli vesentlig redu- so that the amount of oil that must pass through the control valve 8 will be significantly reduced

sert, samtidig med at det beregnede trykk i det hydrauliske system i størst mulig ut-strekning bibeholdes. cert, at the same time that the calculated pressure in the hydraulic system is maintained to the greatest extent possible.

De forhold som er nevnt ovenfor er bare The conditions mentioned above are only

tatt som et tilfeldig valgt eksempel idet forholdene naturligvis vil være mangfol- taken as a randomly chosen example, as the conditions will naturally be diverse

dige. dykes.

Man vil her således få en automatisk You will thus get one automatically

hiving og føring av trossen 10, f. eks. etter- lifting and guiding the rope 10, e.g. after-

hvert som dypgående blir større eller min- as draft increases or decreases

dre for et fartøy under lasting og lossing, samtidig med at det store, kraftige motor - pumpeaggregat 1, 2, 3, benyttes til drift f. dre for a vessel during loading and unloading, at the same time that the large, powerful engine - pump unit 1, 2, 3 is used for operation f.

eks. av kraner eller lastevinsjer. e.g. of cranes or loading winches.

Det kan som eksempel nevnes at en It can be mentioned as an example that a

vanlig såkalt «tolvtonnsvinsj» har en elek- the usual so-called "twelve-ton winch" has an electric

trisk motor på 65 Hk og gir en oljemengde på 910 l/min. Den ytterligere hydrauliske motor-pumpeenhet som i henhold til oppfinnelsen skal tilsluttes tolvtonnsvinsj en behøver bare levere 210 l/min. når motoren går med 1800 omdr./min. Ved polomkop- tric engine of 65 HP and produces an oil quantity of 910 l/min. The additional hydraulic motor-pump unit which according to the invention is to be connected to a twelve-tonne winch only needs to deliver 210 l/min. when the engine runs at 1800 rpm. In polomkop-

lingen settes hastigheten ned til en tredje- ling, the speed is reduced to a third

del, nemlig til 600 omdr./min., og motoren gir da 5 Hk med en oljemengde på 70 l/min. part, namely to 600 rpm, and the engine then produces 5 Hp with an oil quantity of 70 l/min.

som da under normale forhold er tilstrek- which under normal conditions is sufficient

kelig til å holde trossen passe strammet. suitable for keeping the rope properly taut.

Disse 70 liter passerer gjennom regulerings- These 70 liters pass through the regulation

ventilen 8 når vinsjen 6 står stille og bare skal holde trossen 10 stram ved hjelp av det trykk som passeringen av de 70 liter gjen- the valve 8 when the winch 6 is stationary and only has to keep the rope 10 taut by means of the pressure which the passage of the 70 liters re-

nom ventilen 8 medfører. nom valve 8 entails.

Om man anvendte, på samme måte If one applied, in the same way

som tidligere, den store motor-pumpeenhet 1, 2, 3, måtte reguleringsventilen 8 stilles inn slik at passasjen av 910 liter i minuttet førte til det trykk i ledningen 5 som i vinsjen 6 vil sørge for det ønskede strekk i trossen 10, og man kan lett forestille seg hvor uhensiktsmessig dette er rent bort- as before, the large motor-pump unit 1, 2, 3, the control valve 8 had to be set so that the passage of 910 liters per minute led to the pressure in the line 5 which in the winch 6 will ensure the desired tension in the rope 10, and one can easily imagine how inexpedient this is purely away-

sett fra at et stort kostbart aggregat blir opptatt med et arbeid som godt kan utføres av et aggregat som gir 70 l/min. og ofte også mindre enn dette. from the point of view that a large, expensive aggregate is occupied with work that can well be carried out by an aggregate that produces 70 l/min. and often even less than this.

Disse tall er også bare rene eksempler, These numbers are also just pure examples,

og det hydrauliske system kan naturligvis av fagfolk tilpasses de forhold vinsjen skal arbeide under, og hensikten er, som nevnt, and the hydraulic system can of course be adapted by professionals to the conditions under which the winch will work, and the purpose is, as mentioned,

å kunne utnytte et stort kraftig drivaggre- to be able to utilize a large, powerful drive aggre-

gat idet dettes lette arbeid utføres av et mindre aggregat. gat as its light work is carried out by a smaller aggregate.

Claims (4)

1. Anordning ved hydraulisk vinsj an-1. Device for hydraulic winch an- legg til forhaling og fortøyning av skip, omfattende en vinsj motor som under forhalingsoperasjonen drives av et hovedaggregat hvis overflødige drivmedium ledes tilbake til sugesiden gjennom en innstillbar ventil koplet i parallell med vinsj motoren, karakterisert ved at det paral-lelt med hovedaggregatet (1) er anordnet et ytterligere hydraulisk pumpeaggregat (11) med vesentlig mindre kapasitet enn hovedaggregatet (1), hvilket ytterligere pumpeaggregat (11) levere drivmedium til vinsj motoren (6) under mooring, hvorved hovedaggregatet frigjøres for eventuell annen vinsjdrift, f. eks. lasting og lossing, og at det i vinsj motorens (6) trykkledning (5) er anordnet et trykkfølsomt organ (13) som påvirker drivmotoren (12) for det ytterligere pumpeaggregat (11). add towing and mooring of ships, comprising a winch motor which during the towing operation is driven by a main unit whose excess propellant is led back to the suction side through an adjustable valve connected in parallel with the winch motor, characterized in that parallel to the main unit (1) is arranged an additional hydraulic pump unit (11) with a significantly smaller capacity than the main unit (1), which additional pump unit (11) delivers drive medium to the winch motor (6) during mooring, whereby the main unit is freed for any other winch operation, e.g. loading and unloading, and that a pressure-sensitive organ (13) is arranged in the winch motor's (6) pressure line (5) which affects the drive motor (12) for the additional pump unit (11). 2. Anordning som angitt i påstand 1, karakterisert ved at det ytterligere pumpeaggregat (11) har en kapasitet som kan varieres i minst to trinn. 2. Device as stated in claim 1, characterized in that the additional pump unit (11) has a capacity that can be varied in at least two steps. 3. Anordning som angitt i påstand 2, karakterisert ved at det ytterligere pumpeaggregat (11) omfatter en polomkoplingsbar elektrisk motor (12) med en større hastighet som er tre ganger så stor som den minste hastighet. 3. Device as stated in claim 2, characterized in that the additional pump unit (11) comprises a pole-switchable electric motor (12) with a greater speed that is three times as great as the smallest speed. 4. Anordning som angitt i påstand 3, karakterisert ved at det finnes en eller flere brytere eller liknende trykkføl-somme innretninger for omkopling av den polomkoplingsbare motor.4. Device as stated in claim 3, characterized in that there are one or more switches or similar pressure-sensitive devices for switching the pole-switchable motor.
NO750320A 1975-02-03 1975-02-03 NO135217C (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NO750320A NO135217C (en) 1975-02-03 1975-02-03
DK30776AA DK137264B (en) 1975-02-03 1976-01-27 Method and apparatus for manufacturing a concrete structure with internal, continuous cavities.
FI760243A FI760243A (en) 1975-02-03 1976-01-30
GB4007/76A GB1519402A (en) 1975-02-03 1976-02-02 Method and apparatus for the production of concrete structures having an internal troughcavity
FR7602796*[A FR2299132A1 (en) 1975-02-03 1976-02-02 PROCESS AND DEVICE FOR THE MANUFACTURING OF CONCRETE ELEMENTS WITH INTERNAL THROUGH CAVITES
SE7601074A SE404591B (en) 1975-02-03 1976-02-02 PROCEDURE FOR CARRYING OUT CUTTINGS IN CONCRETE CONSTRUCTIONS
ES444855A ES444855A1 (en) 1975-02-03 1976-02-02 Method and apparatus for the production of concrete structures having an internal troughcavity
DE2604037A DE2604037A1 (en) 1975-02-03 1976-02-03 METHOD AND DEVICE FOR FORMING A CONCRETE COMPONENT WITH INNER PASSAGE CAVITIES
JP51010086A JPS51102017A (en) 1975-02-03 1976-02-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO750320A NO135217C (en) 1975-02-03 1975-02-03

Publications (3)

Publication Number Publication Date
NO750320L NO750320L (en) 1976-08-04
NO135217B true NO135217B (en) 1976-11-22
NO135217C NO135217C (en) 1977-03-02

Family

ID=19882057

Family Applications (1)

Application Number Title Priority Date Filing Date
NO750320A NO135217C (en) 1975-02-03 1975-02-03

Country Status (9)

Country Link
JP (1) JPS51102017A (en)
DE (1) DE2604037A1 (en)
DK (1) DK137264B (en)
ES (1) ES444855A1 (en)
FI (1) FI760243A (en)
FR (1) FR2299132A1 (en)
GB (1) GB1519402A (en)
NO (1) NO135217C (en)
SE (1) SE404591B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2631278A1 (en) * 1988-05-16 1989-11-17 Leviel Jean Luc Deformable flexible mould
ES2092433B1 (en) * 1993-12-10 1999-03-01 Ruiz Del Arbol Jose Ra Vazquez PROCEDURE FOR BUILDING CONCRETE FLOORING ON ROADS AND AIRPORTS.
WO1996041706A1 (en) * 1995-06-09 1996-12-27 Vazquez Ruiz Del Arbol Jose Ra Process for constructing linear concrete works with internal cavities, and devices for implementing such process
DE102007056813A1 (en) * 2007-11-23 2009-05-28 Karl Reinhard Zeiss Method for producing a component
GB201200033D0 (en) 2012-01-04 2012-02-15 Miller Fergus R Improvements in or relating to concrete flooring
PL71862Y1 (en) * 2018-07-16 2021-04-06 Klosowicz Przemyslaw Plug for the hollowcore floor slabs
CN110103326B (en) * 2019-05-29 2024-05-28 安徽建工建筑工业有限公司 Device for pre-reserved holes and hoisting of prefabricated wallboard outer hanging rack

Also Published As

Publication number Publication date
ES444855A1 (en) 1977-05-16
DK137264C (en) 1978-07-17
NO750320L (en) 1976-08-04
NO135217C (en) 1977-03-02
GB1519402A (en) 1978-07-26
JPS51102017A (en) 1976-09-09
FR2299132A1 (en) 1976-08-27
SE404591B (en) 1978-10-16
DE2604037A1 (en) 1976-08-05
FR2299132B3 (en) 1978-10-20
FI760243A (en) 1976-08-04
DK30776A (en) 1976-08-04
SE7601074L (en) 1976-08-04
DK137264B (en) 1978-02-13

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