NO165831B - Interception system. - Google Patents
Interception system. Download PDFInfo
- Publication number
- NO165831B NO165831B NO875124A NO875124A NO165831B NO 165831 B NO165831 B NO 165831B NO 875124 A NO875124 A NO 875124A NO 875124 A NO875124 A NO 875124A NO 165831 B NO165831 B NO 165831B
- Authority
- NO
- Norway
- Prior art keywords
- piston
- catch device
- bias
- cylinder
- screw
- Prior art date
Links
- 230000005484 gravity Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Flow Control (AREA)
- Actuator (AREA)
Description
Fanganordninger er velkjente fra såvel heiser som kraner og har til formål å forhindre raskt fall av heiskurven eller lasten ved eventuelle feil på løfteanordninger og/eller bremser. Tidligere kjente fanganordninger er både forholds-vis kompliserte og dyre fordi de må tilfredsstille meget høye krav til pålitelighet. Dette har ikke så stor betyd-ning ved normale og større heiser eller ved kraner fordi der er omkostningene for øvrig så pass store at en mer eller mindre dyr fanganordning gjør ikke særlig stor forskjell. Hva gjelder mindre heiser, f.eks. trappeheiser for en person og lignende, blir de eksisterende løsninger såvidt dyre at heisen totalt sett fordyres på en uakseptabel måte. Oppfin-nelsen har derfor til formål å tilveibringe en fanganordning som spesielt kan anvendes ved enklere og mindre heiser og løfteanordninger, eller naturligvis i andre tilfeller der en pålitelig og billig fanganordning behøves. Catching devices are well-known from lifts as well as cranes and have the purpose of preventing a quick fall of the lift basket or the load in the event of any failure of the lifting devices and/or brakes. Previously known catching devices are both relatively complicated and expensive because they must satisfy very high requirements for reliability. This is not so important in the case of normal and larger lifts or cranes, because there the costs are otherwise so great that a more or less expensive catch device does not make a very big difference. What about smaller lifts, e.g. stairlifts for one person and the like, the existing solutions become so expensive that the overall cost of the lift is unacceptable. The purpose of the invention is therefore to provide a catch device which can be used in particular for simpler and smaller lifts and lifting devices, or of course in other cases where a reliable and cheap catch device is needed.
Oppfinnelsens formål løses ved den fanganordning som er an-gitt i krav 1. The purpose of the invention is achieved by the catch device specified in claim 1.
Hensiktsmessige videreutviklinger av oppfinnelsestanken an-gis i de uselvstendige krav og fremgår dessuten videre av nedenstående beskrivelse i forbindelse med de vedføyede tegninger, hvor Appropriate further developments of the inventive idea are indicated in the non-independent claims and are also evident from the description below in connection with the attached drawings, where
fig. 1 og 2 viser et tannhjul i en heis av ikke nærmere vist type i to stillinger inklusive fanganordning, fig. 1 and 2 show a gear wheel in an elevator of a type not shown in detail in two positions including a catch device,
fig. 3 er et snitt gjennom tannhjulet med fanganordningen vist på fig. 1 og 2. fig. 3 is a section through the gear wheel with the catch device shown in fig. 1 and 2.
Fanganordningen vist på tegningene utgjøres av en hylse 1, som er montert koaksialt på et kjededrev 2. Rørhylsen er forsynt med diametrale uttagninger 3, som i tverrsnitt er en anelse større enn et stempel 4. I det viste tilfelle er ut-tagningene 3 frest ut som et tversgående spor tvers over hylsens 1 ende. En ring 5 er deretter sveiset fast på enden. Stempelet 4 er forskyvbart frem og tilbake i den diametralt anordnede kanal eller hullet 3. Stempelet fastholdes imidlertid i sporet ved hjelp av en bolt 6, som er innskrudd i stempelet innenfor ringen 5. Herved kan stempelet 4 bevege seg mellom to endestillinger der bolten 6 kommer i kontakt med ringen 5. The catch device shown in the drawings consists of a sleeve 1, which is mounted coaxially on a chain drive 2. The tube sleeve is provided with diametrical recesses 3, which in cross-section are slightly larger than a piston 4. In the case shown, the recesses 3 are milled out as a transverse groove across the 1 end of the sleeve. A ring 5 is then welded onto the end. The piston 4 is displaceable back and forth in the diametrically arranged channel or hole 3. However, the piston is held in the groove by means of a bolt 6, which is screwed into the piston within the ring 5. This allows the piston 4 to move between two end positions where the bolt 6 comes in contact with the ring 5.
Kjededrevet 2 er i bruk montert vertikalt slik at når tannhjulet roterer ved f.eks. heisens bevegelse, følger stempelet 4 med i rotasjonen, men faller hele tiden på grunn av tyngdekraftens innvirkning ned for å innta sin nederste stilling. Dette gjelder så lenge kjededrevet beveger seg med en rimelig hastighet. Dersom hastigheten skulle øke, vil sentrifugalkraften på stempelet holde dette på plass i dets utragende stilling, dvs. slik det er vist på fig. 1, selv når stempelet rager helt opp til den stopper 7 som er anordnet over kjededrevet. In use, the chain drive 2 is mounted vertically so that when the sprocket rotates at e.g. movement of the elevator, the piston 4 follows the rotation, but constantly falls due to the influence of gravity down to take its lowest position. This applies as long as the chain drive moves at a reasonable speed. If the speed should increase, the centrifugal force on the piston will hold it in place in its protruding position, i.e. as shown in fig. 1, even when the piston protrudes all the way up to the stop 7 which is arranged above the chain drive.
Praktiske forsøk har vist at fanganordningen ifølge oven-nevnte utførelseseksempel reagerer så raskt at tannhjulet stoppes innenfor en halv omdreining. Practical tests have shown that the catch device according to the above-mentioned design example reacts so quickly that the gear is stopped within half a revolution.
I det viste tilfelle er stopperen plassert på en slik måte at den kun stopper for rask bevegelse i en retning. Om øn-skelig, kan naturligvis stopperen plasseres symmetrisk, slik at den stopper ved for. rask rotasjon både med urviserne og mot urviserne. In the case shown, the stop is positioned in such a way that it only stops for rapid movement in one direction. If desired, the stopper can of course be placed symmetrically, so that it stops at the front. fast rotation both clockwise and counter-clockwise.
Etter at de feil som har tvunget fanganordningen til å blok-kere er reparert, kan denne igjen lett frigjøres ved bevegelse i motsatt retning, hvoretter den umiddelbart på nytt trer i funksjon. Innenfor rammen av oppfinnelsestanken kan man også tenke seg andre utformninger av stempelet, f.eks. kan det utgjøres av et kors. After the errors which have forced the catching device to block have been repaired, it can again be easily released by movement in the opposite direction, after which it immediately starts functioning again. Within the framework of the inventive concept, one can also imagine other designs of the piston, e.g. it can be made up of a cross.
Fanganordningen er med fordel integrert direkte med line-trommel eller kjedehjul for den bærende kjede. The catch device is advantageously integrated directly with the line drum or sprocket for the carrying chain.
Claims (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8605292A SE461587B (en) | 1986-12-10 | 1986-12-10 | FAANGANORDNING |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| NO875124D0 NO875124D0 (en) | 1987-12-08 |
| NO875124L NO875124L (en) | 1988-06-13 |
| NO165831B true NO165831B (en) | 1991-01-07 |
| NO165831C NO165831C (en) | 1991-04-17 |
Family
ID=20366574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO875124A NO165831C (en) | 1986-12-10 | 1987-12-08 | Interception system. |
Country Status (4)
| Country | Link |
|---|---|
| DK (1) | DK174914B1 (en) |
| FI (1) | FI85844C (en) |
| NO (1) | NO165831C (en) |
| SE (1) | SE461587B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE500997C2 (en) * | 1993-04-04 | 1994-10-17 | Stig Ottoson | Ways to ensure activation of a locking mechanism |
| CN115075537B (en) * | 2022-07-08 | 2024-02-02 | 中国水利水电第三工程局有限公司 | Anti-falling device of lifting type construction platform |
-
1986
- 1986-12-10 SE SE8605292A patent/SE461587B/en not_active IP Right Cessation
-
1987
- 1987-12-07 FI FI875384A patent/FI85844C/en not_active IP Right Cessation
- 1987-12-08 NO NO875124A patent/NO165831C/en not_active IP Right Cessation
- 1987-12-09 DK DK198706476A patent/DK174914B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NO875124D0 (en) | 1987-12-08 |
| NO165831C (en) | 1991-04-17 |
| DK647687A (en) | 1988-06-11 |
| DK647687D0 (en) | 1987-12-09 |
| SE8605292D0 (en) | 1986-12-10 |
| NO875124L (en) | 1988-06-13 |
| FI85844B (en) | 1992-02-28 |
| FI85844C (en) | 1992-06-10 |
| FI875384L (en) | 1988-06-11 |
| SE8605292L (en) | 1988-06-11 |
| SE461587B (en) | 1990-03-05 |
| DK174914B1 (en) | 2004-02-16 |
| FI875384A0 (en) | 1987-12-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK1K | Patent expired |