NO122966B - - Google Patents

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Publication number
NO122966B
NO122966B NO4695/69A NO469569A NO122966B NO 122966 B NO122966 B NO 122966B NO 4695/69 A NO4695/69 A NO 4695/69A NO 469569 A NO469569 A NO 469569A NO 122966 B NO122966 B NO 122966B
Authority
NO
Norway
Prior art keywords
coupling
closing body
lowering
lamellae
arm
Prior art date
Application number
NO4695/69A
Other languages
Norwegian (no)
Inventor
D Weston
Original Assignee
Ici Ltd
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 Ici Ltd filed Critical Ici Ltd
Publication of NO122966B publication Critical patent/NO122966B/no

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28Surgical forceps
    • A61B17/2804Surgical forceps with two or more pivotal connections
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/06Joints
    • B25B7/08Joints with fixed fulcrum
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/44Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44641Clasp, clip, support-clamp, or required component thereof having gripping member formed from, biased by, or mounted on resilient member
    • Y10T24/44744Clasp, clip, support-clamp, or required component thereof having gripping member formed from, biased by, or mounted on resilient member with position locking-means for engaging faces
    • Y10T24/44752Integral locking-means
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/20Control lever and linkage systems
    • Y10T74/20576Elements
    • Y10T74/20582Levers
    • Y10T74/20588Levers toggle
    • Y10T74/20594Lazy tongs

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Surgical Instruments (AREA)
  • Materials For Medical Uses (AREA)
  • Scissors And Nippers (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Braking Arrangements (AREA)

Description

Hurtigsenkeinnretning for damanlegg. Rapid lowering device for dam facilities.

Ved forstyrrelser i turbinanlegg ved elvekraftverk kan det være nødvendig å senke damlukkelegemet hurtig for å hindre stigningen av overvannsspeilet og den for skipsfarten farlige senkning av under-vannsspeilet. Hurtigsenkningen av lukkelegemet krever en styring av lukkeopera-sj<t>onen ved bremsning for å hindre at en bestemt maksimal hastighet overskrides. Ved en drift for sluseport og liknende med tre motorer med forskjellige ytelser, men med konstant omdreiningstall og to etter hverandre koplede omløpsdrivinnretninger er det allerede foreslått å erstatte en motor med en hydraulisk eller mekanisk senk-ningsbremse. En sådan drivinnretning er imidlertid omstendelig og kostbar. In the event of disturbances in turbine systems at river power stations, it may be necessary to lower the dam closure body quickly to prevent the rise of the surface water level and the lowering of the underwater level, which is dangerous for shipping. The rapid lowering of the closing body requires a control of the closing operation during braking to prevent a certain maximum speed being exceeded. In an operation for sluice gates and the like with three motors with different outputs, but with a constant number of revolutions and two sequentially connected bypass drive devices, it has already been proposed to replace one motor with a hydraulic or mechanical lowering brake. However, such a drive device is cumbersome and expensive.

Ifølge oppfinnelsen oppnår man en ve-sentlig enklere og billigere hurtigsenkeinnretning for damanlegg på den måte at der i drivakselen for lukkeorganet er innkoplet en av en motorløfteinnretning betjent friksjonskopling og en oljebremse. For store senkehastigheter er det fordelaktig som friksjonskopling å bruke en lamellkopling ved hvilken muffesporene til betjening av lamellene er således formet at koplings-momentet er uavhengig av lamellenes slitasje. Utformingen av drivinnretningen for bremselukning ifølge oppfinnelsen gjør det mulig å senke lukkelegemet ved å utnytte dets posentielle energi med et multiplum av dets løftehastighet, uten at der oppstår vanskeligheter ved reguleringen av senke-hastigheten. Ved utkopling av motorlufte-innretningen kan lukkelegemet holdes i hvilken som helst ønsket mellomstilling. According to the invention, a substantially simpler and cheaper quick-lowering device for dam installations is achieved in such a way that a friction clutch operated by a motor lifting device and an oil brake are connected to the drive shaft for the closing device. For high lowering speeds, it is advantageous as a friction coupling to use a lamellar coupling in which the sleeve grooves for operating the lamellae are shaped in such a way that the coupling torque is independent of the wear of the lamellae. The design of the drive device for brake closing according to the invention makes it possible to lower the closing body by utilizing its potential energy with a multiple of its lifting speed, without difficulties arising when regulating the lowering speed. When disconnecting the engine ventilation device, the closing body can be held in any desired intermediate position.

På tegningen er vist skjematisk to ut-førelseseksemplér for oppfinnelsen. Fig. 1 viser driften av lukkelegemet ved et damanlegg med en hurtigsenkeinnretning og fig. 2 viser anvendelsen av en lamellkopling som friksjonskopling for hurtigsenke-innretningen. The drawing shows schematically two embodiments of the invention. Fig. 1 shows the operation of the closing body at a dam plant with a rapid lowering device and fig. 2 shows the use of a lamellar coupling as a friction coupling for the rapid lowering device.

Driften for løftning og normal senkning av lukkelegemet 1 ved en dam består ifølge fig. 1 av motoren 2, koplingen 3 med bremse 4, den selVhemmende snekkeut-veksling 5,6 for drivakselen 7,8, drivinnretningen 9,9a og kjedehjulene 10, 10a med løftekjeder 11, lia. I drivakselen 7,8 er innkoplet innretningen for hurtigsenkningen. The operation for lifting and normal lowering of the closing body 1 at a dam consists according to fig. 1 of the engine 2, the clutch 3 with brake 4, the self-locking worm gear 5,6 for the drive shaft 7,8, the drive device 9,9a and the sprockets 10, 10a with lifting chains 11, lia. In the drive shaft 7,8, the device for the rapid lowering is connected.

Denne dannes av en friksjonskopling 12, 13 This is formed by a friction coupling 12, 13

og en oljebremse 14. Akseldelen 7 er forbundet med koplingshalvdelen 12 og akseldelen 8 med koplingshalvdelen 13. and an oil brake 14. The shaft part 7 is connected to the coupling half part 12 and the shaft part 8 to the coupling half part 13.

Lukningen av koplingen 12, 13 opp-rettholdes ved hjelp av en vinkelarm 15, 16 hvis ene arm 15 angriper på koplingshalvdelen 12 og hvis andre arm 16 ved den frie ende er forsynt med en vekt 17. Til armen 16 av denne vinkelarm er koplet en motor-løfteinnretning 18. Oljebremsen 14, nemlig den mot en innstillbar strupeåpning arbei-dende tannhjulspumpe, drives av akseldelen 8 over et hjulsett 19. Oljebremsen løper alltid med. Ved løfting kan imidlertid dens motstand settes ut av betraktning på grunn av det lave omløpstall. The closure of the coupling 12, 13 is held upright by means of an angle arm 15, 16, one arm 15 of which engages the coupling half 12 and whose other arm 16 is provided with a weight 17 at the free end. To the arm 16 of this angle arm is connected a motor-lifting device 18. The oil brake 14, namely the gear pump working against an adjustable throttle opening, is driven by the axle part 8 over a set of wheels 19. The oil brake always runs along. However, when lifting, its resistance can be neglected due to the low number of revolutions.

For hurtigsenkning ved inntredende kritiske forhold blir ved stillestående motor For rapid lowering in the event of critical conditions occurs when the engine is at a standstill

2 vekten 17 løftet ved innkopling av motor-løfteinnretningen 18. Dermed blir friksjonskoplingen (kraftkoplingen) for koplingshalvdelen 12, 13 opphevet. Vekten av lukkelegemet 1, eventuelt med vannbelast-ningen, driver nu kjedene 11, lia med kjet-tinghj ulene 10, 10a i drivinnretningen 9, 9a, videre akseldelen 8, hjulsettet 19 og oljebremsen 14. Derved vil de roterende masser beveges akselerende så lenge inntil det med stigende omløpstall økende bremsemoment fra oljebremsen 14 holder likevekt med det på oljeforemseakselen reduserte og av lukkelegemet 1 frembrakte drivmoment. Ved konstant drivmoment vil der innstille seg en jevn senkehastighet for lukkelegemet, men denne hastighets størrelse kan innstilles ved at man forandrer strupeåp-ningen i oljebremsen 14. Ved fråkopling av eldroapparatet 18 kan lukkelegemet 1 om nødvendig stanses i enhver ønsket stilling, da friksjonsmomentet for den av vekten 17 innrykkede kopling 12, 13 bremser akseldelen 8 og gjenoppretter forbindelsen av lukkelegemedrivverket 9, 9a med drivinnretningen 2 til 7. 2, the weight 17 lifted by switching on the motor-lifting device 18. Thus, the friction coupling (power coupling) for the coupling half 12, 13 is canceled. The weight of the closing body 1, possibly with the water load, now drives the chains 11, lia with the chain wheels 10, 10a in the drive device 9, 9a, further the axle part 8, the wheel set 19 and the oil brake 14. Thereby the rotating masses will move accelerating as long until the braking torque from the oil brake 14, which increases with increasing revolutions, balances with the drive torque reduced on the oil foreshaft and produced by the closing body 1. With a constant drive torque, a uniform lowering speed will be set for the closing body, but the size of this speed can be adjusted by changing the throttle opening in the oil brake 14. When disconnecting the electric throttle 18, the closing body 1 can be stopped in any desired position if necessary, as the frictional torque for the Coupling 12, 13 moved in by the weight 17 brakes the shaft part 8 and restores the connection of the closing body drive mechanism 9, 9a with the drive device 2 to 7.

For friksjonskopling 12, 13 kan anvendes hvilken som helst av de kjente utførel-ser. For stor senkehastighet på lukkelegemet 1, dvs. stort omløpstall for akseldelen 8 og store drivmomenter, anvendes hensiktsmessig som friksjonskopling en lamellkopling 20, 21 med tomgangshus ifølge fig. 2. Sporene 22 i denne koplingsinnryknings. muffe 23, hvori koplingsarmens 25 ruller 24 griper inn, er således utformet at koplings-momentet er uavhengig av lamellenes slitasje. Tomgangshuset 20 eller den ytre koplingsdel av lamellkoplingen er over et hjulsett 26, 27 forbundet med akseldelen 7, mens den indre koplingsdel 21 står i for-bindelse med akseldelen 8. Any of the known designs can be used for friction coupling 12, 13. For a large lowering speed of the closing body 1, i.e. a large number of revolutions for the shaft part 8 and large driving torques, a multi-plate clutch 20, 21 with an idler housing according to fig. 2. The grooves 22 in this coupling indentation. sleeve 23, in which the rollers 24 of the coupling arm 25 engage, is designed in such a way that the coupling torque is independent of the wear of the lamellae. The idle housing 20 or the outer coupling part of the multi-plate clutch is connected to the axle part 7 via a set of wheels 26, 27, while the inner coupling part 21 is connected to the axle part 8.

For ved slutten av hurtiggsenkeopera-sjonen å unngå for store bremsemomenter, som kunne føre til skadelige støt i drivver-ket, er det i betjeningsmekanismen 28, 29 for innrykningsmuffen 23, som svarer til vinkelarmen 15, 16, ved anordningen ifølge fig. 1 innkoplet et fjærende ledd 30. En i løfteapparatet 18 innebygget, innstillbar strupeinnretning bevirker at armen 29 ved løfteapparatets 18 fråkopling synker langsomt med vekten 17. Derved vil fjæren 30 også trykkes langsomt sammen og der oppstår i koplingen et med tiden stigende bremsemoment. Man kan altså med denne forholdsregel influere på bremsetiden og lukkelegemets bremsebane innen visse grenser. For løsning av lamellkoplingen 20, 21 er det for armen 28 anordnet et anslag In order to avoid excessive braking torques at the end of the quick-lowering operation, which could lead to harmful shocks in the drive mechanism, in the operating mechanism 28, 29 for the retracting sleeve 23, which corresponds to the angle arm 15, 16, in the device according to fig. 1, a springy link 30 is engaged. An adjustable throttle device built into the lifting device 18 causes the arm 29 to slowly sink with the weight 17 when the lifting device 18 is disconnected. Thereby, the spring 30 will also be slowly pressed together and a braking torque that increases with time will arise in the coupling. With this precaution, you can therefore influence the braking time and the closing body's braking path within certain limits. For loosening the lamellar coupling 20, 21, a stop is provided for the arm 28

31, som ved innkoplingen av løfteappara-tet 18 medbringes av armen 29 og derved påvirker innrykningsmuffen 23. 31, which, when the lifting device 18 is connected, is brought along by the arm 29 and thereby affects the indentation sleeve 23.

For ved stor slitasje på lamellkoplingen 20, 21 å ha mulighet for å etterstille eller utskifte lamellene blir hensiktsmessig den frie ende av tomgangshuset eller av kop-lingsytterdelen 20 ved koplingen utformet som den ene halvdel 32 av en klokopling, hvis andre halvdel 35 er fast forbundet med akseldelen 8. Koplingshalvdelen 33 kan ut-rykkes og innrykkes ved hjelp av en arm 34, og kraftforbindelsen fra lukkelegemet 1 til dets drivinnretning 2—7 går over akseldelen 8. Etter at arbeidet med utskift-ning av koplingslamellene er avsluttet, blir klokoplingen 32, 33 igjen utrykket og armen 34 sikret med en hengelås. In order to be able to replace or replace the lamellae in case of heavy wear on the lamellar coupling 20, 21, the free end of the idle housing or of the coupling outer part 20 at the coupling is designed as one half 32 of a claw coupling, the other half 35 of which is firmly connected with the shaft part 8. The coupling half part 33 can be moved out and retracted with the help of an arm 34, and the power connection from the closing body 1 to its drive device 2-7 goes over the shaft part 8. After the work of replacing the coupling plates is finished, the claw coupling 32 becomes , 33 again expressed and the arm 34 secured with a padlock.

Claims (4)

1. Hurtigsenkeinnretning for damanlegg, karakterisert ved at der i drivakselen (7, 8) for lukkeorganet 1 er innkoplet en av motorløfteinnretningen (18) betjent friksjonskopling (12, 13 eller 20, 21) og en oljebremse (14).1. Rapid lowering device for dam installations, characterized in that a friction clutch (12, 13 or 20, 21) operated by the motor lifting device (18) and an oil brake (14) are engaged in the drive shaft (7, 8) for the closing member 1. 2. Innretning ifølge påstand 1, karakterisert ved at friksjonskoplingen er en lamellkopling (20, 21) og sporene (22) for koplingsmuffen (23) til betjening av lamellene er således utformet at koplingsmo-mentet er uavhengig av lamellenes slitasje.2. Device according to claim 1, characterized in that the friction coupling is a lamellar coupling (20, 21) and the grooves (22) for the coupling sleeve (23) for operating the lamellae are designed in such a way that the coupling moment is independent of the wear of the lamellae. 3. Innretning ifølge påstand 2, karakterisert ved at løfteapparatet (18) over et fjærende ledd (30) er tilsluttet stengesy-stemet (28, 29) for betjening av koplingsmuffen.3. Device according to claim 2, characterized in that the lifting device (18) is connected via a springy link (30) to the closing system (28, 29) for operating the coupling sleeve. 4. Innretning ifølge påstand 2 og 3, karakterisert ved at låmellkoplingens (20, 21) tomgangshus (20) er forbundet over en normalt utrykket klokopling (32, 33) med lukkelegemets (1) drivaksel (8).4. Device according to claims 2 and 3, characterized in that the idler housing (20) of the plate coupling (20, 21) is connected via a normally pressed claw coupling (32, 33) to the drive shaft (8) of the closing body (1).
NO4695/69A 1968-11-29 1969-11-27 NO122966B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB56781/68A GB1253526A (en) 1968-11-29 1968-11-29 Compound lever mechanism

Publications (1)

Publication Number Publication Date
NO122966B true NO122966B (en) 1971-09-06

Family

ID=10477529

Family Applications (1)

Application Number Title Priority Date Filing Date
NO4695/69A NO122966B (en) 1968-11-29 1969-11-27

Country Status (11)

Country Link
US (1) US3636954A (en)
JP (1) JPS529880B1 (en)
BE (1) BE742192A (en)
CH (1) CH504279A (en)
FR (1) FR2024956A1 (en)
GB (1) GB1253526A (en)
MY (1) MY7300104A (en)
NL (1) NL6917895A (en)
NO (1) NO122966B (en)
SE (1) SE371127B (en)
ZA (1) ZA697997B (en)

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Publication number Priority date Publication date Assignee Title
GB1427397A (en) * 1973-04-24 1976-03-10 Ici Ltd Forceps
JPS5085092U (en) * 1973-12-04 1975-07-21
US3921640A (en) * 1974-03-22 1975-11-25 Int Paper Co Disposable surgical instruments
US3913584A (en) * 1974-06-28 1975-10-21 Xomox Corp Combination myringotomy scalpel, aspirator and otological vent tube inserter
FR2329416A2 (en) * 1975-05-26 1977-05-27 Hatayan Vincent Nail holding tool used during hammering - has sprung jaws formed with different dia. facing grooves and adhesive face bearing on workpiece
US4356821A (en) * 1980-09-17 1982-11-02 Bruce Rind Airway
US4365625A (en) * 1980-09-17 1982-12-28 Bruce Rind Expandable oral airway
NZ202390A (en) * 1982-01-14 1986-07-11 Allflex Int Ear tag applicator pliers with open central pivot which communicates with space between tool jaws
US4576168A (en) * 1983-01-05 1986-03-18 Jalowayski Alfredo A Nasal dilator
GB2227200A (en) * 1988-11-16 1990-07-25 Malcolm Charles Holbrook Surgical clamping forceps
US5076628A (en) * 1990-08-20 1991-12-31 Peoples Leisure Products, Inc. Food handling tongs with serrated blade slots
CA2041999A1 (en) * 1991-05-07 1992-11-08 Carol E. Youmans Angled tongs
IT230970Y1 (en) * 1993-02-18 1999-07-05 Cgm Spa  MANUAL TOOL IN SYNTHETIC RESIN, AS A TWEEZER FOR MEDICAL USE.
CA2113967A1 (en) * 1993-03-30 1994-10-01 Erkki Olavi Linden Tool having integral hinge member
USD408240S (en) * 1998-03-27 1999-04-20 Robert Garcia Lice nit stripper
US6050279A (en) * 1998-06-08 2000-04-18 Advanced Micro Devices, Inc. Apparatus and method for immersing an object in a liquid such that a lower surface of the object does not touch a bottom surface of a container holding the liquid
US6752054B2 (en) 2000-12-28 2004-06-22 Irwin Industrial Tool Company Utility cutting tool having toggle link mechanism field of the invention
FR2879093A1 (en) * 2004-12-14 2006-06-16 Diffox Diffusion Oyonnaxienne Clamp especially for surgical use has lever mechanism with articulated arms to prevent twisting of clamp branches under pressure
US20100281758A1 (en) * 2009-05-11 2010-11-11 Mcfann Cori B One-piece fish hook disgorger and method of use
CN102647947A (en) * 2009-10-23 2012-08-22 碧维-韦斯泰科国际(美国)股份有限公司 Speculum
US8196981B1 (en) * 2009-11-10 2012-06-12 Albert Griffin Compact disc retrieving device
GB2475891A (en) * 2009-12-04 2011-06-08 Cassandra Scott Posting device for letterbox
US8784420B2 (en) 2010-10-13 2014-07-22 Warsaw Orthopedic, Inc. Surgical instruments for cutting elongated elements and methods of use
US10070908B2 (en) 2010-10-13 2018-09-11 Warsaw Orthopedic, Inc. Surgical instruments for cutting elongated elements and methods of use
DE102011001706A1 (en) 2011-03-31 2012-10-04 Aesculap Ag Surgical clip applicator
US8960026B2 (en) 2011-04-18 2015-02-24 Exact Sciences Corporation Sample collection device
DE102012210763A1 (en) * 2012-06-25 2014-01-02 Olympus Winter & Ibe Gmbh gripping instrument
US20160038168A1 (en) * 2014-08-11 2016-02-11 Covidien Lp Surgical forceps and methods of manufacturing the same
USD870284S1 (en) 2017-07-31 2019-12-17 Crossroads Extremity Systems, Llc Osteosynthesis clip
CN112405629B (en) * 2020-11-25 2021-12-28 南昌大学 Multipurpose hand tool

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3043902A (en) * 1959-08-10 1962-07-10 Harry J Klein Line-gripping and spacing device
US3384935A (en) * 1967-01-14 1968-05-28 Salvador Carmelo Clamping device of the clothespin type
US3446211A (en) * 1967-11-09 1969-05-27 Harold A Markham Surgical clamp

Also Published As

Publication number Publication date
NL6917895A (en) 1970-06-02
MY7300104A (en) 1973-12-31
US3636954A (en) 1972-01-25
CH504279A (en) 1971-03-15
GB1253526A (en) 1971-11-17
ZA697997B (en) 1971-06-30
SE371127B (en) 1974-11-11
FR2024956A1 (en) 1970-09-04
BE742192A (en) 1970-05-25
JPS529880B1 (en) 1977-03-18

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