NO762943L - - Google Patents
Info
- Publication number
- NO762943L NO762943L NO762943A NO762943A NO762943L NO 762943 L NO762943 L NO 762943L NO 762943 A NO762943 A NO 762943A NO 762943 A NO762943 A NO 762943A NO 762943 L NO762943 L NO 762943L
- Authority
- NO
- Norway
- Prior art keywords
- bores
- bolts
- flange
- holes
- flanges
- Prior art date
Links
- 238000009434 installation Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 5
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/02—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
- F16D1/033—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like by clamping together two faces perpendicular to the axis of rotation, e.g. with bolted flanges
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B3/00—Key-type connections; Keys
- F16B3/06—Key-type connections; Keys using taper sleeves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
Foreliggende oppfinnelse angår en flensforbindelse The present invention relates to a flange connection
for overføring'av både dreiende moment og aksielle krefter mellom to maskinelementer, og av den art der hver flens er forsynt med et antall langs omkretsen fordelte boringer som hver er beregnet for sammen med en tilsvarende boring i motstående flens og oppta forbindelsesorganer for sammenkopling av flensene. Slike flensforbindelser kan komme til anvendelse ved et stort antall forskjellige sammensetninger, men et spesielt hensiktsmessig bruksområde er ved propellakselledningen på et fartøy og oppfinnelsen skal i det følgende beskrives nærmere i forbindelse med en slik kopling. for the transmission of both turning moment and axial forces between two machine elements, and of the kind where each flange is provided with a number of bores distributed along the circumference, each of which is calculated for together with a corresponding bore in the opposite flange and accommodate connecting means for connecting the flanges . Such flange connections can be used in a large number of different compositions, but a particularly suitable area of use is in the propeller shaft line on a vessel and the invention will be described in more detail in the following in connection with such a connection.
Ved propellakseler på fartøyer foreskriver klassifi-seringsselskapene at. akselflensene skal være forsynt med et antall passbolter som sikrer overføringen av dreiemoment, sentrerer flensene og sørger for overføring av den av propellen frembragte aksialkraften. De hull som bores i flensene for disse pass-boltene kommer i alminnelighet alltid til å sakse mer eller mindre da flensene plasseres i monteringsstilling mot hverandre, dvs. boringene kommer ikke til å være beliggende nøyaktig overfor hverandre. Hullene må derfor bearbeides ved brosjing inntil saksingen er borte, men derved kommer man til å få dimensjons-forskjeller mellom de forskjellige hullene. Da det er lett å fremstille en passbolt til hvert enkelt par boringer enn i de tykke flensene å bearbeide hullene til samme diameter, fremstilles for hvert hullpar en passbolt som bare passer til et eneste av flensenes mange hullpar. Monteringen inndrives derefter pass-boltene med handkraft og da skades i blandt de brosjede hullene, hvorved boltene må kasseres. Hullene brotsjes opp på ny og ny passbolt med større diameter må fremstilles. In the case of propeller shafts on vessels, the classification societies prescribe that. the shaft flanges must be provided with a number of dowel bolts which ensure the transmission of torque, center the flanges and ensure the transmission of the axial force produced by the propeller. The holes that are drilled in the flanges for these pass-bolts will generally always intersect more or less as the flanges are placed in the mounting position against each other, i.e. the holes will not be located exactly opposite each other. The holes must therefore be processed by broaching until the shearing is gone, but this will result in dimensional differences between the various holes. As it is easier to manufacture a dowel for each individual pair of bores than to machine the holes to the same diameter in the thick flanges, a dowel is produced for each pair of holes that only fits a single one of the many pairs of holes in the flanges. During assembly, the pass bolts are then driven in by hand and then damaged among the brocaded holes, whereby the bolts must be discarded. The holes are reamed and a new dowel with a larger diameter must be produced.
Ved demontering av forbindelsen efter lengre drifts-tid forekommer det at mange bolter er rustet fast og ikke kan løsnes på vanlig måte. Disse boltene må i stedet brennes bort og ved denne operasjon skades bolthullene så meget at de igjen må maskinbearbeides, hvorefter nye passbolter med enda større diameter må fremstilles for de bearbeidede hullene. When disassembling the connection after a longer period of operation, it happens that many bolts are rusted and cannot be loosened in the usual way. These bolts must instead be burned away and during this operation the bolt holes are damaged so much that they have to be machined again, after which new dowels with an even larger diameter must be produced for the machined holes.
Foreliggende oppfinnelse har til hensikt å fremskaffe en ny flensforbindelse der de enkelte boltene er lett utskift-bare, samtidig som det sikres en sikker kraftoverføring i flensforbindelsen, uten at de ovenfor nevnte ulempene oppstår. The present invention aims to provide a new flange connection in which the individual bolts are easily replaceable, while at the same time ensuring a safe power transmission in the flange connection, without the above-mentioned disadvantages occurring.
En slik flensforbindelse oppnås ifølge oppfinnelsen Such a flange connection is achieved according to the invention
ved at flensforbindelsen omfatter dels et antall ekspansjonsbolter, beregnet for å overføre dreiemomentet og innrettet til å gripe inn i å være ekspanderbare til anlegg mot de nøyaktig bearbeidede boringer, samt dels et antall trekkbolter'beregnet for vesentlig å oppta de aksielle kreftene og innrettet til å gripe inn i råbearbeidede boringer. in that the flange connection comprises partly a number of expansion bolts, calculated to transmit the torque and arranged to intervene in being expandable to fit against the precisely machined bores, as well as partly a number of tension bolts 'calculated to substantially absorb the axial forces and arranged to engage in rough machined bores.
Oppfinnelsen skal i det følgende forklares nærmere under henvisning til tegningen som viser et utførelseseksempel for oppfinnelsen. Fig. 1 viser et sideriss av en flensforbindelse ifølge oppfinnelsen. Fig. 2 er et snitt etter linjen II-II i fig. 1, og fig. 3 er et snitt etter linjen III-III i fig. 1. In the following, the invention will be explained in more detail with reference to the drawing which shows an embodiment of the invention. Fig. 1 shows a side view of a flange connection according to the invention. Fig. 2 is a section along the line II-II in fig. 1, and fig. 3 is a section along the line III-III in fig. 1.
Den ifig. 1 viste flensforbindelsen omfatter en i snitt vist akseldel 1 som er forsynt med en flens 2, langs hvis omkrets det er anordnet et antall boringer som opptar bolter 3 som igjen forbinder flensen 2 med en lik flens beliggende bak den viste. The ifig. The flange connection shown in 1 comprises an axle part 1 shown in section which is provided with a flange 2, along the circumference of which there are arranged a number of bores which receive bolts 3 which in turn connect the flange 2 with a similar flange located behind the one shown.
I fig. 2 vises i et snitt etter linjen II-II ifig. 1 hvorledes de to flensene 2 som hver er forsynt med en aksedel 1 In fig. 2 is shown in a section along the line II-II in fig. 1 how the two flanges 2 which are each provided with a shaft part 1
er anordnet mot hverandre. Den ifig. 2 viste bolten 3a er en ekspansjonsbolt som har et konisk legeme ^4 og en utenfor dette anordnet ekspans j onsforing 5 som efter opp.driving av bolten ligger an mot ihnerflaten av de ved brosjing bearbeidede boringene 6 are arranged against each other. The ifig. The bolt 3a shown in 2 is an expansion bolt which has a conical body ^4 and an expansion sleeve 5 arranged outside this, which, after driving up the bolt, rests against the inner surface of the bores processed by broaching 6
i hullparet. Denne bolten har på det nærmeste ingen evne til å overføre aksiell belastning, men tjener i stedet til å sentrere flensene og å overføre dreiemoment. Ved at bolten radielle ekspansjonsmulighet er forholdsvis stor, kan en bolt av standard størrelse benyttes på samtlige hullpar beregnet for å oppta ekspanderende bolter, efter som diameterforskjeller mellom de in the hole pair. This bolt has almost no ability to transmit axial load, but instead serves to center the flanges and to transmit torque. As the bolt's radial expansion potential is relatively large, a bolt of standard size can be used on all pairs of holes designed to accommodate expanding bolts, depending on the diameter differences between the
individuelle hullparene blir kompensert av boltenes radielle ekspanderbarhet. Derved behøver bare å berabeide boringene for ekspansjonsboltene 3a ved hjelp av brosjing og det kreves ingen spesielle foranstaltninger for å fremskaffe en bolt som er tilpasset til de individuelle hullparene. Boltene er natur-ligvis forsynt med tiltrekkingsmuttere 7 samt stoffskiver 8. the individual pairs of holes are compensated by the radial expandability of the bolts. Thereby, it is only necessary to process the bores for the expansion bolts 3a by means of broaching and no special measures are required to obtain a bolt which is adapted to the individual pairs of holes. The bolts are naturally provided with tightening nuts 7 and fabric washers 8.
I fig. 3, som er et snitt etter linjen III-III i fig. 1, er det. vist en trekkbolt 3b som er forsynt med et fast hode 9 i den ene enden og har en mutter 10 ved sin andre ende. Denne trekkbolten er innført i et par boringer 11 som bare behøver å råbearbeides efter som bolten ikke tøhøver å være i kontakt med boringenes flater. Som følge av at boltens legeme har mindre diameter enn boringenes indre diameter, kan det også tillates en viss grad av saksing mellom boringene i de to flensene. In fig. 3, which is a section along the line III-III in fig. 1, it is. shown a draw bolt 3b which is provided with a fixed head 9 at one end and has a nut 10 at its other end. This pull bolt is inserted into a pair of bores 11 which only need to be roughed out as the bolt does not need to be in contact with the surfaces of the bores. As a result of the bolt's body having a smaller diameter than the inner diameter of the bores, a certain degree of shearing between the bores in the two flanges can also be permitted.
Disse trekkboltene 3b har som oppgave å oppta bøyemomentet i akselledningen, aksialkrefter som virker på forbindelsen, hvilke aksialkrefter i det viste eksempelet under drift frembringes av propellen. Forbindelsen kan dessuten overføre et visst dreiemoment ved friksjon mellom flensene. Trekkboltene har vanlig klaring i flenshullene. Boringene på trekkboltene kan derfor utføres ved en enkelt boring. En flensforbindelse av den beskrevende art krever ikke mer enn to til maksimalt fire ekspansjonsbolter som bevirker sentrering av flensene og overføring av dreiemomentet, mens resten'av forbindelsens bolter kan være enkle trekkbolter. Derved kan bearbeidelsen av flensenes boringer i høy grad forenkles, efter som bare ekspansjonsboltenes boringer behøver å brosjes, mens flenshullene for trekkboltene bare .behøver å bores. Da antallet nødvendige boringer og bolter er det samme som for. den innledningsvis beskrevende passbolt-forbindelsen oppnås en stor besparelse i maskineringstiden for fremstilling av forbindelsen ifølge oppfinnelsen. These drawbolts 3b have the task of absorbing the bending moment in the axle line, axial forces acting on the connection, which axial forces in the example shown during operation are produced by the propeller. The connection can also transmit a certain torque by friction between the flanges. The drawbolts have normal clearance in the flange holes. The holes on the drawbolts can therefore be made with a single drill. A flange connection of the kind described requires no more than two to a maximum of four expansion bolts which effect the centering of the flanges and the transmission of the torque, while the rest of the bolts of the connection may be simple pull bolts. Thereby, the machining of the flanges' bores can be greatly simplified, as only the expansion bolt's bores need to be broached, while the flange holes for the tension bolts only need to be drilled. As the number of required holes and bolts is the same as for. the initially described dovetail connection, a large saving is achieved in the machining time for manufacturing the connection according to the invention.
Boltene kan hensiktsmessig monteres og demonteres hydraulisk, derved unngår man skader på bolter eller boringer under disse operasjonene. The bolts can be appropriately assembled and dismantled hydraulically, thereby avoiding damage to bolts or bores during these operations.
Oppfinnelsen er ikke begrenset til forbindelser for propellakseler på fartøyer, og også andre modifikasjoner kan tenkes innen -rammen for de effeerfølgende patentkrav. The invention is not limited to connections for propeller shafts on vessels, and other modifications are also conceivable within the scope of the patent claims that follow.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7509498A SE389076B (en) | 1975-08-27 | 1975-08-27 | FLANGE CONNECTION, SPECIAL FOR PROPELLER SHAFT ON SHIPS |
Publications (1)
Publication Number | Publication Date |
---|---|
NO762943L true NO762943L (en) | 1977-03-01 |
Family
ID=20325367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO762943A NO762943L (en) | 1975-08-27 | 1976-08-26 |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPS5238634A (en) |
BE (1) | BE845592A (en) |
DE (1) | DE2637756A1 (en) |
DK (1) | DK385276A (en) |
FI (1) | FI762403A (en) |
FR (1) | FR2322296A1 (en) |
GB (1) | GB1510077A (en) |
IT (1) | IT1073684B (en) |
NL (1) | NL173552C (en) |
NO (1) | NO762943L (en) |
SE (1) | SE389076B (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH630706A5 (en) * | 1978-06-30 | 1982-06-30 | Bbc Brown Boveri & Cie | RIGID COUPLING, ESPECIALLY FOR TURBOG GENERATORS. |
US4192621A (en) * | 1978-09-26 | 1980-03-11 | Ab Gothenburg Motor | Method for interconnecting two shaft-ends and a shaft coupling made in accordance with said method |
FR2483548A1 (en) * | 1980-05-28 | 1981-12-04 | Alsthom Atlantique | COUPLING DEVICE BETWEEN TWO ROTORS |
WO1988002074A1 (en) * | 1986-09-09 | 1988-03-24 | Pilgrim Engineering Developments Limited | Bolted coupling |
GB2181511A (en) * | 1985-09-06 | 1987-04-23 | Pilgrim Eng Dev | Expansion bolt for bolted couplings |
SE464485B (en) * | 1988-10-24 | 1991-04-29 | Ovako Steel Couplings Ab | DEVICE AND PROCEDURE FOR THE URGING OF MACHINE ELEMENTS AND THE USE OF EXPANDER BUTTONS FOR THE URGING OF MACHINE ELEMENTS |
GB2245326B (en) * | 1990-06-22 | 1993-10-20 | Pilgrim Moorside Ltd | Expansion bolt assembly |
FI108157B (en) * | 1996-08-13 | 2001-11-30 | Waertsilae Finland Oy | Connection method and device |
FR2931911B1 (en) * | 2008-05-29 | 2010-07-30 | Snecma | SYSTEM AND METHOD FOR BRIDGE ASSEMBLY BETWEEN TWO ROTATING PARTS |
US8112862B2 (en) * | 2009-12-18 | 2012-02-14 | General Electric Company | Methods of assembling rotors having non-complementary flange openings |
DE102017218016A1 (en) * | 2016-10-26 | 2018-04-26 | Aktiebolaget Skf | Bolt assembly, connection assembly, and method of disassembling a connection assembly |
CN112555290B (en) * | 2020-11-18 | 2022-11-11 | 深圳市海蓝智能科技有限公司 | Drive shaft assembly for improving positioning precision of drive shaft |
CN115405634A (en) * | 2022-08-16 | 2022-11-29 | 中信重工机械股份有限公司 | Connecting structure and method for main shaft and winding drum of mine hoist |
CN116002034A (en) * | 2023-01-10 | 2023-04-25 | 广州文冲船厂有限责任公司 | Shaft structure, manufacturing method thereof and load test method of shaft generator |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE526351A (en) * | 1900-01-01 | |||
DE1169726B (en) * | 1954-06-15 | 1964-05-06 | Oskar E Peter | Clamping set between a cylindrical component and a concentric body |
CH335573A (en) * | 1955-11-23 | 1959-01-15 | Bbc Brown Boveri & Cie | Shaft coupling |
GB1064639A (en) * | 1965-11-24 | 1967-04-05 | Exxon Research Engineering Co | Improved propeller bosses |
JPS4933240B1 (en) * | 1970-03-23 | 1974-09-05 |
-
1975
- 1975-08-27 SE SE7509498A patent/SE389076B/en unknown
-
1976
- 1976-06-30 NL NLAANVRAGE7607172,A patent/NL173552C/en not_active IP Right Cessation
- 1976-08-21 DE DE19762637756 patent/DE2637756A1/en not_active Ceased
- 1976-08-23 FI FI762403A patent/FI762403A/fi not_active Application Discontinuation
- 1976-08-24 IT IT51004/76A patent/IT1073684B/en active
- 1976-08-25 FR FR7625692A patent/FR2322296A1/en not_active Withdrawn
- 1976-08-26 DK DK385276A patent/DK385276A/en not_active Application Discontinuation
- 1976-08-26 NO NO762943A patent/NO762943L/no unknown
- 1976-08-26 GB GB35512/76A patent/GB1510077A/en not_active Expired
- 1976-08-26 JP JP51101216A patent/JPS5238634A/en active Pending
- 1976-08-27 BE BE170135A patent/BE845592A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
BE845592A (en) | 1976-12-16 |
DK385276A (en) | 1977-02-28 |
NL173552C (en) | 1984-02-01 |
FR2322296A1 (en) | 1977-03-25 |
DE2637756A1 (en) | 1977-03-10 |
GB1510077A (en) | 1978-05-10 |
FI762403A (en) | 1977-02-28 |
NL173552B (en) | 1983-09-01 |
IT1073684B (en) | 1985-04-17 |
SE389076B (en) | 1976-10-25 |
JPS5238634A (en) | 1977-03-25 |
NL7607172A (en) | 1977-03-01 |
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