NO153437B - LOWER STORAGE FOR RORSE STREAMS. - Google Patents

LOWER STORAGE FOR RORSE STREAMS. Download PDF

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Publication number
NO153437B
NO153437B NO833409A NO833409A NO153437B NO 153437 B NO153437 B NO 153437B NO 833409 A NO833409 A NO 833409A NO 833409 A NO833409 A NO 833409A NO 153437 B NO153437 B NO 153437B
Authority
NO
Norway
Prior art keywords
bearing
rudder
rudder stem
bearing bushing
stem
Prior art date
Application number
NO833409A
Other languages
Norwegian (no)
Other versions
NO153437C (en
NO833409L (en
Inventor
Hilmar Hildre
Jens K Tenfjord
Original Assignee
Tenfjord Mek Verksted 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 Tenfjord Mek Verksted As filed Critical Tenfjord Mek Verksted As
Priority to NO833409A priority Critical patent/NO153437C/en
Priority to DK446584A priority patent/DK154058C/en
Priority to NL8402878A priority patent/NL191362C/en
Priority to DE3434387A priority patent/DE3434387C2/en
Priority to FI843663A priority patent/FI74526C/en
Priority to KR1019840005782A priority patent/KR850002431A/en
Publication of NO833409L publication Critical patent/NO833409L/en
Publication of NO153437B publication Critical patent/NO153437B/en
Publication of NO153437C publication Critical patent/NO153437C/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/02—Sliding-contact bearings
    • F16C23/04—Sliding-contact bearings self-adjusting
    • F16C23/043—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings
    • F16C23/045—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings for radial load mainly, e.g. radial spherical plain bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/06—Steering by rudders
    • B63H25/38—Rudders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/30—Ships, e.g. propelling shafts and bearings therefor

Description

Oppfinnelsen angår et nedre lager for en skipsrorstamme ifølge kravenes innledning. The invention relates to a lower bearing for a ship's rudder shaft according to the preamble of the claims.

Nedre opplagringer for skipsrorstamraer har i det store og hele vært utført som sylindriske lagre som tillater rota-sjon og forskyvning i akseretningen. Lower bearings for ship's rudder shafts have generally been designed as cylindrical bearings that allow rotation and displacement in the axial direction.

Ved store belastninger på roret og dermed mot rorstammen vil det i den nedre opplagring oppstå et bend av betyde-lig størrelse mot lagerets øvre og nedre motstående kanter, idet rorstammen som sådan derved får en kurvelinje som ligger utenfor rorstammens teoretiske vertikale akse. Samtidig vil således en bevegelse av rorstammen i forhold til den nedre opplagring oppstå. In the case of large loads on the rudder and thus on the rudder stem, a bend of considerable magnitude will occur in the lower bearing towards the upper and lower opposite edges of the bearing, as the rudder stem as such thereby acquires a curved line that lies outside the theoretical vertical axis of the rudder stem. At the same time, a movement of the rudder stem in relation to the lower bearing will therefore occur.

De sylindriske lagre tillater naturlig nok en bevegelse 1 rorstammens lengderetning, men er ikke bygget for å oppta disse uheldige krefter som bl.a. oppstår ved større bélastninger mot roret. Dette medfører at de kjente sylindriske lagre ut-settes for stor slitasje og ekstreme belastninger. The cylindrical bearings naturally allow a movement 1 the rudder stem's longitudinal direction, but are not built to absorb these unfortunate forces such as occurs when greater loads are applied to the rudder. This means that the known cylindrical bearings are exposed to great wear and extreme loads.

Ved lageret ifølge oppfinnelsen unngås disse uheldige påvirkninger ved de trekk som er anført i kravenes karakter-iserende deler. With the bearing according to the invention, these adverse effects are avoided by the features listed in the characterizing parts of the requirements.

Lageret ifølge oppfinnelsen tillater en avbøyning.av rorstammen i lagerområdet og samtidig en forskyvning i lengderet-ningen mellom rorstammen og lageret. Især i sammenheng med et sfærisk øvre lager, eventuelt forbundet med en vrimotor oppnås en ideell opplagring av rorstammen for opptak av de lagerkrefter som oppstår ved store belastninger på roret og dermed en avbøyning av rorstammen mellom de to lagre og en skrå-stilling av rorstammen i lagrene i tillegg til en for bøynin-gen nødvendig forskyvning av rorstammen i det nedre lager. The bearing according to the invention allows a deflection of the rudder stem in the bearing area and at the same time a displacement in the longitudinal direction between the rudder stem and the bearing. Especially in connection with a spherical upper bearing, possibly connected to a turning motor, an ideal storage of the rudder stem is achieved for absorption of the bearing forces that arise from large loads on the rudder and thus a deflection of the rudder stem between the two bearings and an inclined position of the rudder stem in the bearings in addition to a displacement of the rudder stem in the lower bearing necessary for the bending.

Tegningen viser et snitt gjennom det nedre lager. Lagerets feste til skroget er ikke vist. The drawing shows a section through the lower bearing. The bearing's attachment to the hull is not shown.

Rorstammen 1 har et parti med utvidet diameter hvor kilespor 2 er anordnet rundt periferien. En lagerbøssing 4 omslutter rorstammen 1 og har kilespor 3 som forløper gjennom lagerbøssingens 4 hele lengde eller kun over den nederste større del som vist ved 10. Kiler 9 er innsatt i kilesporene 2 i rorstammen 1 og går i inngrep i kilesporene 3 i lagerbøs-singen 4. Rorstammen 1 kan således forskyves i akseretningen mens kilene 9 forskyves i lagerbøssingens 4 kilespor 3 og hol- The rudder stem 1 has a section with an extended diameter where keyway 2 is arranged around the periphery. A bearing bushing 4 encloses the rudder stem 1 and has a keyway 3 which runs through the entire length of the bearing bushing 4 or only over the lower, larger part as shown at 10. Keys 9 are inserted in the keyways 2 in the rudder stem 1 and engage in the keyways 3 in the bearing bushing 4. The rudder stem 1 can thus be displaced in the axial direction while the wedges 9 are displaced in the bearing bushing 4's wedge groove 3 and

des i rorstammens 1 kilespor 2. des in the rudder stem's 1 keyway 2.

Lagerbøssingen 4 har på sin ytre side kulekalott Bearing bushing 4 has a ball cap on its outer side

5, eksempelvis av polyamid, med en sfærisk ytre flate 6. kulekalotten 5 er utformet som to delsfæriske ringer, øvre og nedre, som ligger an mot øvre del 8 og nedre del 7 av et lagerboss. Øvre og nedre deler av lagerbosset 7, 8 spennes til hverandre på kjent måte slik at det oppnås hensiktsmessig sete' for lagerbøssingen 4. Lagerbosset 8 er på kjent måte festet til skipets skrog. 5, for example of polyamide, with a spherical outer surface 6. The ball cap 5 is designed as two semi-spherical rings, upper and lower, which rest against the upper part 8 and lower part 7 of a bearing boss. The upper and lower parts of the bearing boss 7, 8 are clamped to each other in a known manner so that a suitable seat is obtained for the bearing bushing 4. The bearing boss 8 is attached to the ship's hull in a known manner.

Ved muligheten for forskyvning av rdrstammen 1 i forhold til lagerbøssingen 4 tillates lengdeforskyvninger, eksempelvis på grunn av lengdeutvidelse av rorstammen samt even-tuell forskyvning på grunn av bøyning. I tillegg tillater lageret avbøyning av rorstammen i lagerområdet på grunn av lager-bøssingens ytre sfæriske form. In the case of the possibility of displacement of the rudder stem 1 in relation to the bearing bushing 4, longitudinal displacements are permitted, for example due to longitudinal expansion of the rudder stem as well as possible displacement due to bending. In addition, the bearing allows deflection of the rudder stem in the bearing area due to the outer spherical shape of the bearing bushing.

Claims (3)

1. Nedre lager for skipsrorstamme, av den type hvor akselen eller lageret tillates å utføre aksial-, dreie- og vippebevegelse, KARAKTERISERT VED at en lagerbøssing (4) ligger an rundt rorstammen (1) og har med i rorstammen over-ensstemmende kilespor (3) i hvilke kiler (9) er innsatt, for å tillate aksial bevegelse og å hindre dreiebevegelse mellom lagerbøssingen (4) og rorstammen (1), og at lagerbøssingen (4) har et sfærisk lagerelement (5) hvis konvekse sfæriske flate ligger an mot, og kan beveges i fiorhold til en konkav sfærisk flate i et rundt lagerbøssing anordnet lagerboss (7, 8) som er fremstilt i to deler hvorav den ene del er fast forbundet med skipets skrog, idet det dermed tillates dreining av rorstammen i forhold til lagerbosset, omkring rorstammens akse og samtidig avbøyning av rorstammen ved belastning, i forhold til dennes normalstilling.1. Lower bearing for a ship's rudder stem, of the type where the shaft or bearing is allowed to perform axial, turning and tilting movements, CHARACTERIZED BY the fact that a bearing bushing (4) fits around the rudder stem (1) and has matching keyways in the rudder stem ( 3) in which wedges (9) are inserted, to allow axial movement and to prevent turning movement between the bearing bushing (4) and the rudder stem (1), and that the bearing bushing (4) has a spherical bearing element (5) whose convex spherical surface abuts towards, and can be moved in relation to a concave spherical surface in a bearing boss (7, 8) arranged in a round bearing bushing, which is made in two parts, one part of which is firmly connected to the ship's hull, thus allowing rotation of the rudder stem in relation to bearing boss, around the axis of the rudder stem and simultaneous deflection of the rudder stem under load, in relation to its normal position. 2. Lager ifølge krav 1, KARAKTERISERT VED at lager-bøssingens kilespor (3) strekker seg over en nedre større del av lagerbøssingens (4) høyde.2. Bearing according to claim 1, CHARACTERIZED IN THAT the bearing bushing's keyway (3) extends over a lower, larger part of the bearing bushing's (4) height. 3. Lager ifølge krav 1, KARAKTERISERT VED at lager-bøssingens (4) kilespor (3) er utformet i lagerbøssingens fulle høyde.3. Bearing according to claim 1, CHARACTERIZED IN THAT the bearing bushing (4)'s keyway (3) is designed in the full height of the bearing bushing.
NO833409A 1983-09-22 1983-09-22 LOWER STORAGE FOR RORSE STREAMS. NO153437C (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NO833409A NO153437C (en) 1983-09-22 1983-09-22 LOWER STORAGE FOR RORSE STREAMS.
DK446584A DK154058C (en) 1983-09-22 1984-09-19 LOWER RENT FOR A SHIP TROUBLE STOCK.
NL8402878A NL191362C (en) 1983-09-22 1984-09-19 Lower bearing for a ship's rudder king.
DE3434387A DE3434387C2 (en) 1983-09-22 1984-09-19 Lower bearing for a rudder shaft
FI843663A FI74526C (en) 1983-09-22 1984-09-19 NEDRE LAGER FOER RODERAXELN.
KR1019840005782A KR850002431A (en) 1983-09-22 1984-09-21 Lower bearing for ship side

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO833409A NO153437C (en) 1983-09-22 1983-09-22 LOWER STORAGE FOR RORSE STREAMS.

Publications (3)

Publication Number Publication Date
NO833409L NO833409L (en) 1985-03-25
NO153437B true NO153437B (en) 1985-12-09
NO153437C NO153437C (en) 1986-03-19

Family

ID=19887247

Family Applications (1)

Application Number Title Priority Date Filing Date
NO833409A NO153437C (en) 1983-09-22 1983-09-22 LOWER STORAGE FOR RORSE STREAMS.

Country Status (6)

Country Link
KR (1) KR850002431A (en)
DE (1) DE3434387C2 (en)
DK (1) DK154058C (en)
FI (1) FI74526C (en)
NL (1) NL191362C (en)
NO (1) NO153437C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2676260B1 (en) * 1991-05-06 1995-04-21 Jp3 BEARINGS OF THE SELF-ALIGNING TYPE, PARTICULARLY FOR SHEER BIT.
DE9418745U1 (en) * 1994-11-14 1995-02-02 Barkemeyer Schiffstechnik Gmbh Spherical bearing for a rudder post

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD102660A1 (en) * 1973-03-28 1973-12-20

Also Published As

Publication number Publication date
NL191362B (en) 1995-01-16
NO153437C (en) 1986-03-19
FI74526B (en) 1987-10-30
DK446584D0 (en) 1984-09-19
NL8402878A (en) 1985-04-16
FI74526C (en) 1988-02-08
FI843663A0 (en) 1984-09-19
KR850002431A (en) 1985-05-13
DK154058B (en) 1988-10-10
DE3434387A1 (en) 1985-05-09
DK154058C (en) 1989-02-27
FI843663L (en) 1985-03-23
NL191362C (en) 1995-06-16
DK446584A (en) 1985-03-23
NO833409L (en) 1985-03-25
DE3434387C2 (en) 1995-04-06

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Free format text: EXPIRED IN SEPTEMBER 2003