DK154664B - STEPLESS ADJUSTABLE BRAKE - Google Patents
STEPLESS ADJUSTABLE BRAKE Download PDFInfo
- Publication number
- DK154664B DK154664B DK146280AA DK146280A DK154664B DK 154664 B DK154664 B DK 154664B DK 146280A A DK146280A A DK 146280AA DK 146280 A DK146280 A DK 146280A DK 154664 B DK154664 B DK 154664B
- Authority
- DK
- Denmark
- Prior art keywords
- adjustable
- pulley
- disc
- driving
- adjusting screw
- Prior art date
Links
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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/52—Pulleys or friction discs of adjustable construction
- F16H55/56—Pulleys or friction discs of adjustable construction of which the bearing parts are relatively axially adjustable
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Transmissions By Endless Flexible Members (AREA)
- Transmission Devices (AREA)
Description
DK 154664 BDK 154664 B
Opfindelsen angår et trinløst indstilleligt remtræk, som omfatter en drivende remskive og en drevet med konstant akselafstand, og hvor hver remskive har en indstillelig skivehalvdel og en fast skivehalvdel, og hvor den indstillelige skive-5 halvdel på den drivende remskive er indstillelig ved hjælp af en hydraulisk eller mekanisk reguleringsmotor, og den indstillelige skivehalvdel på den drevne remskive er indstillelig via en drivrem, og hvor den indstillelige skivehalvdel på den drivende skive er indrettet til direkte eller indirekte at kunne 10 bringes til anlæg mod en indstillelig justeringsskrue.The invention relates to an infinitely adjustable pulley comprising a driving pulley and a drive with constant shaft spacing, each pulley having an adjustable pulley half and a fixed pulley half, and wherein the adjustable pulley half of the driving pulley is adjustable by means of a pulley. hydraulic or mechanical control motor, and the adjustable disc half of the driven pulley is adjustable via a drive belt and wherein the adjustable disc half of the driving disc is adapted to be directly or indirectly brought into contact with an adjustable adjusting screw.
Det er kendt at justere remspændingen ved trinløst indstillelige remtræk ved hjælp af en spænderulle eller ved at ændre akselafstanden. Sådanne justeringsindretninger kan på grund af 15 pladsforhold og krav til kraftoverføringen ikke altid anvendes og er desuden dyre og fylder meget. Hvis en spænde i ndretn ing-mangler, vil der, når drivremmen forlænges i løbet af dennes levetid, opstå slup i remtrækket, som ikke kan korrigeres ved endesti 11 i ngerne.It is known to adjust the belt tension by infinitely adjustable belt tension by means of a tensioning roller or by changing the wheelbase. Due to 15 space conditions and power transmission requirements, such adjustment devices may not always be used and are also expensive and very filling. If a buckle in the defect is missing, when the belt is extended over its lifetime, a slack in the belt drive will occur, which cannot be corrected by end 11 of the belt.
2020
Fra US patentskrift nr. 3.762.231 kendes en remskive, der ved hjælp af hydrauliske midler kan antage forskellige effektive diametre; remskiven omfatter stopanordninger til fastlæggelse af største og mindste diameter. Denne udformning tager ikke 25 højde for sliddet på remmen, hvorved remmens levetid ikke kan udnyttes fuldt.US Patent No. 3,762,231 discloses a pulley capable of using various effective diameters by hydraulic means; the pulley includes stop means for determining the largest and smallest diameter. This design does not take into account the wear of the belt, whereby the life of the belt cannot be fully utilized.
Fra US patentskrift nr. 2.170.212 kendes en variabel transmissionsindretning med remskiver. Transmissionens omsætningsfor-30 hold varieres ved, at man gennem en fjeder påvirker den drevne remskive, således at dens effektive diameter ændres. Det er muligt at begrænse skivehalvdelenes bevægelse, men indretningen gør det ikke umiddelbart muligt at tage højde for sliddet på remmen; derved kan remmens levetid ikke udnyttes fuldt.From US Patent No. 2,170,212 a variable transmission device with pulleys is known. The transmission ratio of the transmission is varied by influencing the driven pulley through a spring so that its effective diameter is changed. It is possible to limit the movement of the disc halves, but the device does not immediately allow for the wear of the belt; thereby the belt's life cannot be fully utilized.
Det er formålet med opfindelsen at anvise et remtræk af den indledningsvis nævnte art, som, når man ikke kan efterspænde remmen med spænderulle eller ved ændring af akselafstanden, 35SUMMARY OF THE INVENTION It is an object of the invention to provide a belt drive of the type mentioned initially which, when one cannot tighten the belt with a tension roller or by changing the wheelbase,
DK 154664 BDK 154664 B
2 muliggør, at den nødvendige remspænding alligevel kan indstilles optimalt, og at omdrejningstallets fulde variationsområde kan udnyttes, selv om drivremmen forlænges i løbet af dennes levetid.2 allows the necessary belt tension to be optimally adjusted and the full range of rpm can be utilized, even if the drive belt is extended during its lifetime.
55
Remtrækket ifølge opfindelsen er ejendommelig ved, at justeringsskruen er forsynet med et i sin akseretning forløbende, gennemgående målehul for indføring af en dybdemåler til bestemmelse af et indstillingsmål, som fastlægges af den indven-10 dige endeflade af den ene af de to skivehalvdele på den drivende skive og et bestemt sted på justeringsskruen, når den drivende skrive er indstillet til sin mindste arbejdsdiameter, idet indstillingsmålet er en funktion af spaltebredden mellem den drevne remskives to skivehalvdele, og spaltebredden er di-15 rekte afhængig af længden af drivremmen. På denne måde kan den • nødvendige drivremspænding ved hjælp af simple konstruktive midler på ny let indstilles, når remmen forlænges i løbet af dennes levetid, idet det nu kun er nødvendigt at ændre på stillingen af det indstillelige anslag, som justeringsskruen 20 danner, drivskivens indstillelige skivehalvdel kan nemlig ikke forskydes længere ind mod den faststående remskivehalvdel end nødvendigt for indstilling af den nødvendige remspænding.The belt feature according to the invention is characterized in that the adjusting screw is provided with a continuous measuring hole extending in its axis for introducing a depth gauge for determining a setting target which is determined by the inner end surface of one of the two disc halves of the driving disc and a specific location on the adjusting screw when the driving write is set to its minimum working diameter, the setting target being a function of the gap width between the two disc halves of the driven pulley and the gap width being directly dependent on the length of the drive belt. In this way, the required drive belt tension can be readily reset by simple constructive means when the belt is extended over its lifetime, since it is now only necessary to change the position of the adjustable stop formed by the adjusting screw 20, the adjustable drive pulley. that is, the disc half cannot be moved further in towards the fixed pulley half than necessary to adjust the necessary belt tension.
Ifølge opfindelsen kan reguleringsskruen være indskruet i den 25 faste skivehalvdel på den drivende skive, hvilket har vist sig særlig hensigtsmæssigt.According to the invention, the adjusting screw can be screwed into the fixed disc half of the driving disc, which has proved particularly convenient.
Opfindelsen forklares nærmere i det følgende i forbindelse med tegningen, hvor figuren viser et remtræk set i tværsnit.The invention will be explained in more detail in the following with reference to the drawing, in which the figure shows a belt pull seen in cross section.
3030
Det i figuren viste remtræk 2 er af typen med trinløst indstilleligt udvekslingsforhold og med en trinløst indstillelig remskive - den drivende remskive 4, der via en drivrem 6 eller et tilsvarende trækorgan driver en anden trinløst indstillelig 35 remskive - den drevne remskive 8.The pulley 2 shown in the figure is of the type with infinitely adjustable gear ratio and with an infinitely adjustable pulley - the driving pulley 4 which drives via a drive belt 6 or a similar pulling means another infinitely adjustable pulley - the driven pulley 8.
Den drivende remskive 4 består af en indstillelig skivehalvdel 10 og en fast skivehalvdel 12. Begge skivehalvdelene 10 og 12The driving pulley 4 consists of an adjustable disc half 10 and a fixed disc half 12. Both disc halves 10 and 12
DK 154664 BDK 154664 B
3 er anbragt på en aksel 14, som er drejeligt lejret i rulningslejer, der ikke er vist på tegningen. Den drevne remskive 8 består ligeledes af en indstillelig skivehalvdel 18 og en fast skivehalvdel 16, som er anbragt på en aksel 20.3 is mounted on a shaft 14 which is pivotally mounted in rolling bearings not shown in the drawing. The driven pulley 8 also consists of an adjustable pulley half 18 and a fixed pulley half 16 disposed on a shaft 20.
55
Den drivende remskive 4's indstillelige skivehalvdel 10 kan ved hjælp af en ikke vist reguleringsmotor indstilles ad mekanisk eller hydraulisk vej. Den drevne remskive 8 er tvangsstyret via remskiven 4 og drivremmen 6, idet den indstillelige 10 skivehalvdel 18 med en trykfjeder 22 trykkes mod drivremmen 6.The adjustable disc half 10 of the driving pulley 4 can be adjusted by mechanical or hydraulic means by means of a control motor (not shown). The driven pulley 8 is forcibly controlled via the pulley 4 and the drive belt 6, the adjustable 10 pulley half 18 having a compression spring 22 being pressed against the driving belt 6.
Den faste skivehalvdel 12 på den drivende remskive 4 er forsynet med mindst én indstillelig og som anslag udformet justeringsskrue 24, der kan fastlåses i stilling ved hjælp af en møtrik 26. Justeringsskruen 24 strækker sig gennem en flange 15 28 på den faste skivehalvdel 12 og ind i et reguleringsrum 30, der er lukket ved hjælp af en foldebælg 32. Foldebælgen 32 er ved sin ene ende forbundet med den faste skivehalvdel 12 og ved sin anden ende forbundet med den indstillelige skivehalvdel 10. Justeringsskruen 24 har et i skruens akseretning for-20 løbende, gennemgående målehul 34, gennem hvilket en dybdemåler kan indføres.The fixed washer half 12 of the driving pulley 4 is provided with at least one adjustable and impact-shaped adjusting screw 24, which can be locked in position by a nut 26. The adjusting screw 24 extends through a flange 15 28 on the fixed washer half 12 and inwards. in a control compartment 30 closed by a folding bellows 32. The folding bellows 32 are connected at one end to the fixed disc half 12 and at their other end to the adjustable disc half 10. The adjusting screw 24 has a front 20 in the screw direction. continuous through-hole 34 through which a depth gauge can be inserted.
De på tegningen med bogstaverne y og Y betegnede indstillings-mål angiver den maksimalt tilladelige vandring for den ind-25 stillelige skivehalvdel 10. Hvis den indstillelige remskive 4 f.eks. er indstillet til sin største arbejdsdiameter, vil forskydningen af den indstillelige skivehalvdel 10 være begrænset af justeringsskruen 24. Når drivremmen 6 i løbet af en vis driftstid strækker sig, er der ved denne indstilling ikke læn-30 gere tilstrækkelig remspænding i endestillingerne. Da spaltebredden A imidlertid også reduceres når drivremmen bliver længere, må indstillingsmålet Y på ny indstilles ved hjælp af justeringsskruen 24 afhængigt af den ny-konstaterede spaltebredde A, således at der kan indstilles en optimal remspæn-35 ding. Herved vil remtrækket kunne arbejde i det optimale omdrejningstal-område i hele drivremmens 6 levetid. Indstillingsmålet y eller indstillingsmålet Y, når længden af justeringsskruen 24 medregnes, kan bestemmes ved udregning. Ved enThe setting dimensions indicated in the drawing with the letters y and Y indicate the maximum allowable travel for the adjustable disc half 10. If the adjustable pulley 4 e.g. is set to its largest working diameter, the displacement of the adjustable disc half 10 will be limited by the adjusting screw 24. When the drive belt 6 extends during a certain operating time, there is no sufficient belt tension in the end positions during this adjustment. However, since the gap width A is also reduced as the drive belt becomes longer, the adjustment target Y must be re-adjusted by means of the adjustment screw 24, depending on the newly found gap width A, so that an optimal belt tension can be set. This will enable the belt drive to operate in the optimum rpm range throughout the life of the drive belt 6. The adjustment target y or the adjustment target Y, when the length of the adjustment screw 24 is taken into account, can be determined by calculation. At a
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2914604A DE2914604C2 (en) | 1979-04-11 | 1979-04-11 | Infinitely adjustable traction mechanism |
DE2914604 | 1979-04-11 |
Publications (3)
Publication Number | Publication Date |
---|---|
DK146280A DK146280A (en) | 1980-10-12 |
DK154664B true DK154664B (en) | 1988-12-05 |
DK154664C DK154664C (en) | 1989-07-03 |
Family
ID=6068022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK146280A DK154664C (en) | 1979-04-11 | 1980-04-02 | STEPLESS ADJUSTABLE BRAKE |
Country Status (10)
Country | Link |
---|---|
BE (1) | BE882726A (en) |
BR (1) | BR8002242A (en) |
DE (1) | DE2914604C2 (en) |
DK (1) | DK154664C (en) |
ES (1) | ES490409A0 (en) |
FR (1) | FR2454024B1 (en) |
GB (1) | GB2047825B (en) |
IT (1) | IT1127444B (en) |
SE (1) | SE441856B (en) |
ZA (1) | ZA802153B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005057817A1 (en) * | 2005-12-03 | 2007-06-06 | Zf Friedrichshafen Ag | Device for prevention of run down of enlacement means of primary disk set of variators, has low catch formed as additional catch, which is on designated primary end, for axially adjustable primary disk |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2170212A (en) * | 1934-02-19 | 1939-08-22 | Us Electrical Motors Inc | Variable ratio transmission device |
US3762231A (en) * | 1972-02-22 | 1973-10-02 | Rockwell International Corp | Variable diameter pulley |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3195364A (en) * | 1963-02-13 | 1965-07-20 | Ernest H Pauli | Variable speed pulley |
US3675500A (en) * | 1970-11-04 | 1972-07-11 | Robert V Albertson | Stepwise movable v-belt drive pulley |
-
1979
- 1979-04-11 DE DE2914604A patent/DE2914604C2/en not_active Expired
-
1980
- 1980-03-27 FR FR8006841A patent/FR2454024B1/en not_active Expired
- 1980-04-02 DK DK146280A patent/DK154664C/en not_active IP Right Cessation
- 1980-04-09 GB GB8011649A patent/GB2047825B/en not_active Expired
- 1980-04-09 SE SE8002687A patent/SE441856B/en not_active IP Right Cessation
- 1980-04-10 ES ES490409A patent/ES490409A0/en active Granted
- 1980-04-10 ZA ZA00802153A patent/ZA802153B/en unknown
- 1980-04-10 BR BR8002242A patent/BR8002242A/en unknown
- 1980-04-10 IT IT48378/80A patent/IT1127444B/en active
- 1980-04-10 BE BE0/200177A patent/BE882726A/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2170212A (en) * | 1934-02-19 | 1939-08-22 | Us Electrical Motors Inc | Variable ratio transmission device |
US3762231A (en) * | 1972-02-22 | 1973-10-02 | Rockwell International Corp | Variable diameter pulley |
Also Published As
Publication number | Publication date |
---|---|
DK154664C (en) | 1989-07-03 |
DK146280A (en) | 1980-10-12 |
SE8002687L (en) | 1980-10-12 |
GB2047825A (en) | 1980-12-03 |
ZA802153B (en) | 1981-11-25 |
GB2047825B (en) | 1982-11-10 |
BR8002242A (en) | 1980-12-02 |
ES8101225A1 (en) | 1980-12-01 |
ES490409A0 (en) | 1980-12-01 |
SE441856B (en) | 1985-11-11 |
FR2454024A1 (en) | 1980-11-07 |
IT8048378A0 (en) | 1980-04-10 |
DE2914604A1 (en) | 1980-10-16 |
FR2454024B1 (en) | 1986-02-28 |
IT1127444B (en) | 1986-05-21 |
BE882726A (en) | 1980-07-31 |
DE2914604C2 (en) | 1982-06-24 |
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Date | Code | Title | Description |
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PBP | Patent lapsed | ||
PBP | Patent lapsed |