NO141905B - MOTOR OPERATED LIFT MACHINERY. - Google Patents

MOTOR OPERATED LIFT MACHINERY. Download PDF

Info

Publication number
NO141905B
NO141905B NO741156A NO741156A NO141905B NO 141905 B NO141905 B NO 141905B NO 741156 A NO741156 A NO 741156A NO 741156 A NO741156 A NO 741156A NO 141905 B NO141905 B NO 141905B
Authority
NO
Norway
Prior art keywords
brake
monitor
machinery according
rev
rpm
Prior art date
Application number
NO741156A
Other languages
Norwegian (no)
Other versions
NO141905C (en
NO741156L (en
Inventor
Fred Bengtsson
Original Assignee
Crawford Door Ab
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 Crawford Door Ab filed Critical Crawford Door Ab
Publication of NO741156L publication Critical patent/NO741156L/no
Publication of NO141905B publication Critical patent/NO141905B/en
Publication of NO141905C publication Critical patent/NO141905C/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • E05F15/60Power-operated mechanisms for wings using electrical actuators
    • E05F15/603Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/003Anti-dropping devices
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • E05F15/40Safety devices, e.g. detection of obstructions or end positions
    • E05F15/41Detection by monitoring transmitted force or torque; Safety couplings with activation dependent upon torque or force, e.g. slip couplings
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • E05F15/70Power-operated mechanisms for wings with automatic actuation
    • E05F15/72Power-operated mechanisms for wings with automatic actuation responsive to emergency conditions, e.g. fire
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/20Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/21Brakes
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/20Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/23Actuation thereof
    • E05Y2201/246Actuation thereof by auxiliary motors, magnets, springs or weights
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/20Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/252Type of friction
    • E05Y2201/26Mechanical friction
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/20Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/262Type of motion, e.g. braking
    • E05Y2201/266Type of motion, e.g. braking rotary
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/40Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/43Motors
    • E05Y2201/434Electromotors; Details thereof
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/40Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/46Magnets
    • E05Y2201/462Electromagnets
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10Electronic control
    • E05Y2400/32Position control, detection or monitoring
    • E05Y2400/322Position control, detection or monitoring by using absolute position sensors
    • E05Y2400/324Switches
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10Electronic control
    • E05Y2400/32Position control, detection or monitoring
    • E05Y2400/322Position control, detection or monitoring by using absolute position sensors
    • E05Y2400/328Position control, detection or monitoring by using absolute position sensors of the linear type
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10Electronic control
    • E05Y2400/32Position control, detection or monitoring
    • E05Y2400/35Position control, detection or monitoring related to specific positions
    • E05Y2400/354End positions
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10Electronic control
    • E05Y2400/50Fault detection
    • E05Y2400/514Fault detection of speed
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10Electronic control
    • E05Y2400/52Safety arrangements associated with the wing motor
    • E05Y2400/53Wing impact prevention or reduction
    • E05Y2400/532Emergency braking or blocking
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10Electronic control
    • E05Y2400/52Safety arrangements associated with the wing motor
    • E05Y2400/53Wing impact prevention or reduction
    • E05Y2400/54Obstruction or resistance detection
    • E05Y2400/55Obstruction or resistance detection by using load sensors
    • E05Y2400/554Obstruction or resistance detection by using load sensors sensing motor load
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/10Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/106Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)
  • Braking Arrangements (AREA)

Description

Foreliggende oppfinnelse vedrører et motordrevet heisemaskineri, fortrinnsvis bestemt for porter, og hovedhen- The present invention relates to a motor-driven lifting machinery, preferably intended for gates, and the main purpose

sikten med oppfinnelsen er å skaffe en forbedret sikkerhet mot skader eller uhell som kan oppstå ved at en person eller en gjen-stand kommer i veien for porten når denne skal stenges eller åpnes. the aim of the invention is to provide improved safety against damage or accidents that may occur when a person or an object gets in the way of the gate when it is to be closed or opened.

Det er tidligere blitt foreslått i drivoverføringen It has previously been suggested in the drive transmission

mellom motoren og heisen å anordne en slurekobling som begrenser størrelsen av det overførte drivmoment og dermed også av den kraft, med hvilken porten kan påvirke et hinder. Ved denne anordning, between the motor and the lift to arrange a slip coupling which limits the magnitude of the transmitted driving torque and thus also of the force with which the gate can affect an obstacle. By this device,

hvis hensikt først og fremst er å beskytte motoren og drivover-føringen mot skade ved overbelastning, er porten også etter at slurekoblingen har trådt i funksjon, påvirket av en stengende henholdsvis åpnende kraft. Om f. eks. en person er kommet i klemme i porten, gjør den stadig virkende stengekraft det ubekvemt for ham å befri seg fra klemningsgrepet. whose purpose is primarily to protect the motor and the drive transmission from damage due to overloading, the gate is also affected by a closing or opening force even after the shutter coupling has come into operation. If, for example, a person is trapped in the gate, the constantly acting closing force makes it inconvenient for him to free himself from the pinch grip.

Oppfinnelsen angår således et motordrevet heisemaskineri, fortrinnsvis bestemt for porter, hvor drivmotoren er tilkoblet porten over en slurekobling, og det særegne ved oppfinnelsen er at der etter slurekoblingen er anordnet en turtall- The invention thus relates to a motor-driven lifting machinery, preferably intended for gates, where the drive motor is connected to the gate via a slip coupling, and the peculiarity of the invention is that there is arranged after the slip coupling a speed-

vakt som ved underskridelse av et forutbestemt normalturtall er innrettet til å aktivisere en likeledes etter slurekoblingen anordnet bremse. guard which, when falling below a predetermined normal speed, is designed to activate a brake also arranged after the slip clutch.

Ved dette trekk unngås den ovenfor omtalte ulempe. This feature avoids the above-mentioned disadvantage.

Ytterligere trekk ved oppfinnelsen fremgår av under- Further features of the invention appear from sub-

c c

kravene og den etterfølgende beskrivelse av et på tegningen vist utførelseseksempel på oppfinnelsen, idet fig. 1 og 2 viser selve heisemaskineri sett ovenfra henholdsvis mot enden. the claims and the subsequent description of an embodiment of the invention shown in the drawing, as fig. 1 and 2 show the lift machinery itself seen from above and towards the end respectively.

Et stativ 1 er i nærheten av den ene ende utstyrt med A stand 1 is near one end equipped with

en justeringsbro 2 som bærer heisemaskineriets drivmotor 3 og som ved sin ene, indre endekant er svingbart lagret i stativets 1 an adjustment bridge 2 which carries the lift machinery's drive motor 3 and which at its one, inner end edge is pivotably stored in the stand's 1

bunnstykke og ved sin ytre ende forbundet med samme buunnstykke ved hjelp av en reguleringsbolt 4. På motorens aksel 5 er der fastkilt en remskive 6 som over en kilerem.7 står i drivforbindelse med en større remskive 8 som er dreibart lagret på en mellomaksel 9. På denne aksel er der dreibart anordnet en skive 10 som på bottom piece and connected at its outer end to the same bottom piece by means of an adjustment bolt 4. On the motor's shaft 5, a pulley 6 is wedged which, over a V-belt 7, is in drive connection with a larger pulley 8 which is rotatably mounted on an intermediate shaft 9. A disc 10 is rotatably arranged on this shaft as shown

den side som vender mot remskiven 8, er forsynt med et slurebelegg. Remskiven 8 holdes trykket mot denne skive 10 ved hjelp av en på remskivens motsatte side anordnet trykkfjær 11, hvis ytre ende hviler mot en skive 12 som holdes i anlegg mot fjæren av et kon-tramutter-arrangement 13, hvilke muttere er skrudd fast på mellomakselens ytre, gjengede endeparti. Den ønskede bremsekraft for den slurekobling som er dannet av den faste skive 10 og remskiven 11, bestemmes ved egnet valg av fjærens 11 sammentrykningsgrad. For at man ved monteringen skal slippe å måle bremsevirkningen the side facing the pulley 8 is provided with a veil coating. The pulley 8 is kept pressed against this pulley 10 by means of a pressure spring 11 arranged on the opposite side of the pulley, the outer end of which rests against a pulley 12 which is held in contact with the spring by a counter nut arrangement 13, which nuts are screwed onto the intermediate shaft outer, threaded end part. The desired braking force for the slip clutch formed by the fixed disc 10 and the pulley 11 is determined by suitable selection of the degree of compression of the spring 11. So that you don't have to measure the braking effect during installation

for hvert enkelt aggregat i forbindelse med innstillingen av fjærtrykket, kan der i fjæren legges inn en avstandshylse som omgir mellemakselen og hvis lengde er således valgt at fjæren får den ønskede sammentrykning når mutterne 13 trekkes mot hylsens ende. Slurekoblingen er utført som en tørrlamellkobling, hvis belegg virker mot en stålskive, men behøver selvsagt ikke være utført på denne måte. I stedet for at belegget, som ovenfor nevnt, er festet til skiven 13, kan det selvsagt være festet til remskiven 8. Mellomakselen er understøttet av lagre 14 som er montert i stativet og som begge er anordnet på samme side av remskiven 8. En turtallvakt i form av en elektrisk bryter er betegnet med 15 for each individual unit in connection with the setting of the spring pressure, a spacer sleeve can be inserted into the spring which surrounds the intermediate shaft and whose length is chosen in such a way that the spring receives the desired compression when the nuts 13 are pulled towards the end of the sleeve. The slip coupling is designed as a dry lamellar coupling, the coating of which acts against a steel disc, but of course it does not have to be designed in this way. Instead of the coating, as mentioned above, being attached to the pulley 13, it can of course be attached to the pulley 8. The intermediate shaft is supported by bearings 14 which are mounted in the stand and which are both arranged on the same side of the pulley 8. A speed monitor in the form of an electric switch is denoted by 15

og er således anordnet at bryteren holdes sluttet ved det turtall som tilsvarer normal transporthastighet av porten. En magnet-bremse 16 virker på mellomakselen og har sin styremagnet koblet i serie med turtallvaktens 15 bryter. Magnetbremsen er utført som en fjærtrykksbremse og innrettet til å virke når strømkretsen gjennom dens manøvermagnet er brutt. På mellomakselens motsatte ende i forhold til skiven 8 er der fastkilt et tannhjul 17 som over en kjede 18 står i drivforbindelse med et. tannhjul 19 på and is thus arranged so that the switch is kept closed at the speed corresponding to the normal transport speed of the gate. A magnetic brake 16 acts on the intermediate shaft and has its control magnet connected in series with the speed monitor's 15 switch. The magnetic brake is designed as a spring pressure brake and is designed to operate when the current circuit through its operating magnet is broken. On the opposite end of the intermediate shaft in relation to the disk 8, a gear wheel 17 is wedged which, over a chain 18, is in drive connection with a. gear 19 on

en annen aksel 20 som også er understøttet av stativet ved hjelp av to lagre 21. Tannhjulet 19 er løsbart koblet med akselen 20 ved hjelp av en klobobling 22 eller lignende som er forskyvbar i akselens 20 lengderetning mellom sin koblestilling og fristilling. En manøverstang 23 som er anordnet parallelt med akslene 18 og 20, er lagret i stativet 1 forskyvbar i sin lengderetning og bærer another shaft 20 which is also supported by the stand by means of two bearings 21. The gear wheel 19 is releasably connected to the shaft 20 by means of a claw 22 or the like which is displaceable in the longitudinal direction of the shaft 20 between its coupling position and release position. A maneuvering rod 23 which is arranged parallel to the shafts 18 and 20 is stored in the stand 1 displaceable in its longitudinal direction and carries

i sin ene ende en manøverarm 24 som står i inngrep med koblingen 22. Manøverarmen 24 fastholdes til manøverstangen 23 ved hjelp av én kontramutterforbindelse 25. En trykkfjær 26 som omgir manøverstangen 23, hviler med sin ene ende mot en på manøver-stangen fast anbragt anslagsskive 27 og med sin annen ende mot at one end, a maneuvering arm 24 that engages with the coupling 22. The maneuvering arm 24 is secured to the maneuvering rod 23 by means of a counter nut connection 25. A compression spring 26 that surrounds the maneuvering rod 23, rests with its one end against a stop disc fixed to the maneuvering rod 27 and with its other end towards

-innsiden av stativets 1 ene sidevegg. Trykkfjæren 26 søker å holde manøverstangen 23 og dermed koblingen 22 i den på fig.1 viste stilling. Koblingen 22 kan løses ut manuelt ved trekk i en wire 28 som er festet til den ene ende av en to-armet manøver-stang, hvis ene ende ligger an mot skiven 27 på stangen 23. Ved trekk i wiren 28 presses manøverstangen 23 utad mot fjærens 26 virkning og frikobler derved tannhjulet 19 fra akselen 20, i hvilken stilling porten kan manøvreres manuelt, for eksempel ved hjelp av en sveiv. På den ende av akselen 20 som er motsatt tannhjulet 19, er der fastkilt et ytterligere tannhjul 30 som over en drivkjede 31 står i forbindelse med porten. Et tannhjul 32 er anordnet innenfor tannhjulet 30 og står over en kjede 33 - the inside of the stand's 1 side wall. The pressure spring 26 seeks to hold the operating rod 23 and thus the coupling 22 in the position shown in fig.1. The coupling 22 can be released manually by pulling on a wire 28 which is attached to one end of a two-armed maneuvering rod, one end of which rests against the disk 27 on the rod 23. By pulling on the wire 28, the maneuvering rod 23 is pressed outwards towards the action of the spring 26 and thereby disengages the gear 19 from the shaft 20, in which position the gate can be maneuvered manually, for example by means of a crank. On the end of the shaft 20 which is opposite the gear wheel 19, a further gear wheel 30 is wedged which is in connection with the gate via a drive chain 31. A gear wheel 32 is arranged inside the gear wheel 30 and stands above a chain 33

i forbindelse med et tannhjul 34 på en gjenget spindel 35, på hvilken der er anordnet to i innbyrdes avstand anordnede anslags-organer 36 som forskyves i spindelens lengderetning når denne roterer. En grensestillingsbryter 37 samvirker med anslagene 30. Gjengestigningen og anslagsorganenes 36 innbyrdes avstand er således valgt i forhold til den foreliggende utveksling at an-slagsorganene påvirker grensestillingsbryteren i portens øvre og nedre stillinger. Utvekslingen mellom porten og mellomakselen 18 kan fortrinnsvis velges således at mellomakselen ved normal transporthastighet av porten roterer med høyst 330 omdr/min. Hensiktsmessige utløsningsverdier for bremsen kan ligge mellom 280 og 300 omdr/min. Bremsen kan, foruten ved hjelp av turtallvakten, naturligvis også påvirkes manuelt ved hjelp av en trykk-knappbryter eller lignende. in connection with a gear wheel 34 on a threaded spindle 35, on which there are arranged two spaced abutment members 36 which are displaced in the longitudinal direction of the spindle when it rotates. A limit position switch 37 interacts with the stops 30. The thread pitch and the mutual distance of the stop members 36 are so chosen in relation to the present exchange that the stop members affect the limit switch in the gate's upper and lower positions. The ratio between the door and the intermediate shaft 18 can preferably be chosen so that the intermediate shaft at normal transport speed of the door rotates at a maximum of 330 rev/min. Appropriate release values for the brake can lie between 280 and 300 rpm. The brake can, in addition to using the rev monitor, naturally also be affected manually using a push-button switch or the like.

Hvis portens hastighet ved bevegelse nedad øker som følge av en mekanisk feil ved portkonstruksjonen, vil mellom-akslens 9 hastighet øke og derved overskride den øvre turtall-verdi, således at turtallvakten påvirker magnetbremsen. Magnetbremsen vil også påvirkes, dersom porten ved nedgang støter mot en hindring og slurekoblingen 8, 10 derved trer i funksjon. Da nedsettes mellomakselens 18 turtall til under den nedre grense-verdi . If the speed of the gate during downward movement increases as a result of a mechanical fault in the gate construction, the speed of the intermediate shaft 9 will increase and thereby exceed the upper rpm value, so that the rpm monitor affects the magnetic brake. The magnetic brake will also be affected, if the door hits an obstacle during descent and the slip clutch 8, 10 thereby comes into operation. The speed of the intermediate shaft 18 is then reduced to below the lower limit value.

En bryter 38 inngår i maskineriets manøverstrømkrets A switch 38 is included in the machinery's maneuvering current circuit

og bryter denne krets når maskineriet er frikoblet for manuell drift, dvs. når manøverarmen 39 befinner seg i sin med urviseren svingte stilling. and breaks this circuit when the machinery is disengaged for manual operation, i.e. when the maneuver arm 39 is in its clockwise position.

Claims (6)

1. Motordrevet heisemaskineri, fortrinnsvis bestemt for porter, hvor drivmotoren (3) er tilkoblet porten over en slurekobling (4, 10), karakterisert ved at der etter slurekoblingen er anordnet en turtallvakt (15) som ved underskridelse av et forutbestemt normalturtall er innrettet til å aktivisere en likeledes etter slurekoblingen anordnet bremse (16).1. Motor-driven lifting machinery, preferably intended for gates, where the drive motor (3) is connected to the gate via a shutter coupling (4, 10), characterized in that after the shutter coupling there is arranged a speed monitor (15) which, when falling below a predetermined normal speed, is set to to activate a brake (16) also arranged after the slip clutch. 2. Heisemaskineri i henhold til krav 1, karakterisert ved at turtallvakten (15) er utført som en elektrisk strømbryter som er sluttet ved normalturtall og brutt ved unormale turtallavvikelser.2. Hoisting machinery according to claim 1, characterized in that the rpm monitor (15) is designed as an electric circuit breaker which is closed at normal rpm and broken at abnormal rpm deviations. 3. Heisemaskineri i henhold til krav 2, karakterisert ved at bremsen styres av en i serie med turtallvakten (15) koblet magnet, således at den søker å innta bremse-stilling når styremagneten er strømløs.3. Hoisting machinery according to claim 2, characterized in that the brake is controlled by a magnet connected in series with the rev monitor (15), so that it seeks to assume the brake position when the control magnet is de-energized. 4. Heisemaskineri i henhold til et av de foregående krav. karakterisert ved at både turtallvakten (15) og bremsen (16) er anordnet i tilslitning til en separat mellomaksel (9) som inngår i overføringen mellom drivmotoren og manøvre-ringsobjektet.4. Hoist machinery according to one of the preceding requirements. characterized in that both the rev monitor (15) and the brake (16) are arranged in connection with a separate intermediate shaft (9) which forms part of the transmission between the drive motor and the maneuvering object. 5. Heisemaskineri i henhold til et av de foregående krav, karakterisert ved at der etter turtallvakten (15) og bremsen (16) i overføringen er anordnet en manuelt utløsbar frikobling (22).5. Hoisting machinery according to one of the preceding claims, characterized in that a manually released clutch (22) is arranged after the rev monitor (15) and the brake (16) in the transmission. 6. Heisemaskineri i henhold til krav 3, karakterisert ved at der i bremsens (16) styremagnetkrets også inngår en eller flere grensestillingsbrytere som påvirkes av portens eller lignendes bevegelser.6. Hoisting machinery according to claim 3, characterized in that the brake's (16) control magnet circuit also includes one or more limit position switches which are affected by the movements of the gate or the like.
NO741156A 1973-10-03 1974-04-01 MOTOR OPERATED LIFT MACHINERY. NO141905C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7313435A SE7313435L (en) 1973-10-03 1973-10-03

Publications (3)

Publication Number Publication Date
NO741156L NO741156L (en) 1975-04-28
NO141905B true NO141905B (en) 1980-02-18
NO141905C NO141905C (en) 1980-05-28

Family

ID=20318717

Family Applications (1)

Application Number Title Priority Date Filing Date
NO741156A NO141905C (en) 1973-10-03 1974-04-01 MOTOR OPERATED LIFT MACHINERY.

Country Status (9)

Country Link
BE (1) BE808903A (en)
DE (1) DE2400987A1 (en)
DK (1) DK693373A (en)
FI (1) FI53025C (en)
FR (1) FR2246488B3 (en)
GB (1) GB1453037A (en)
NL (1) NL7316766A (en)
NO (1) NO141905C (en)
SE (1) SE7313435L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4501963A (en) * 1981-11-03 1985-02-26 Automatic Roller Doors, Australia, Pty., Ltd. Reversing device for roller doors
GB2398596A (en) * 2003-02-21 2004-08-25 Cova Security Gates Ltd Folding leaf gate
GB0406359D0 (en) 2004-03-20 2004-04-21 Gunton Bruce S Drive arrangement
JP6021593B2 (en) 2012-11-07 2016-11-09 矢崎総業株式会社 connector
CN103883197A (en) * 2014-04-07 2014-06-25 江汇装饰用品(鹤山)有限公司 Window opening stroke control mechanism of window opener
CN112811367B (en) * 2020-12-30 2022-03-25 黄炜 Instrument overhauling device

Also Published As

Publication number Publication date
DK693373A (en) 1975-06-02
FI379673A (en) 1975-04-14
DE2400987A1 (en) 1975-04-17
NO141905C (en) 1980-05-28
NL7316766A (en) 1975-04-07
FR2246488B3 (en) 1976-11-26
NO741156L (en) 1975-04-28
FR2246488A1 (en) 1975-05-02
FI53025C (en) 1978-01-10
SE7313435L (en) 1975-04-04
FI53025B (en) 1977-09-30
BE808903A (en) 1974-04-16
GB1453037A (en) 1976-10-20

Similar Documents

Publication Publication Date Title
CN103964275B (en) Elevator Car Brake With Shoes Actuated By Springs
US4493479A (en) Hoist drive safety system
US2670065A (en) Combined brake and clutch for motor drives
CN110271936B (en) Remote triggering reset mechanism of speed limiter
CA2588461A1 (en) System arrangement of a lifting device, in particular for a container crane for the lifting of loads and moving for the operation of the system arrangement
US4928796A (en) Lift
EP2729399B1 (en) Endless cable winch
EP0018127B1 (en) Hoist
CN109179134B (en) Device combining advertisement and elevator falling prevention prompt
IT9019538A1 (en) SAFETY DEVICE FOR A LIFTING EQUIPMENT OR SIMILAR
NO141905B (en) MOTOR OPERATED LIFT MACHINERY.
US2274000A (en) Elevator safety apparatus
EP3243784B1 (en) Arrangement for releasing the operating brake of an elevator
US10351397B2 (en) Chain hoist
CN111942989A (en) Construction elevator security protection device for construction
NO780960L (en) DEVICE FOR OPENING AND CLOSING A LIFTABLE AND LOWERABLE DOOR
US1952728A (en) Hoisting apparatus
US885560A (en) Safety-brake for elevators.
US1976406A (en) Safety brake
EP0064080B1 (en) Safety mechanism for hoisting drums
US2145656A (en) Elevator safety apparatus
DE3917594C2 (en) elevator brake
NO163922B (en) DEVICE FOR GENERATING ACOUSTIC IMPULS BY IMPLOSION IN THE INTERNAL OF A BROWN.
CN103910264B (en) Detachable elevator governor
US7607515B2 (en) Elevator evacuation apparatus