SE190835C1

SE190835C1 -

Info

Publication number: SE190835C1
Authority: SE
Publication date: 1964-01-01

Description

Uppfinnare: R D Nigel Prioritet begard pan den 27 :in& 1956 (Nederldnderna) Foreliggande uppfinning avser en foretradesvis installbar, roterbar friktionskoppling. Dylika kopplingar aro forut kanda och kunna t. ex. besta av tva kroppar, span pressas mot varandra medelst ett eventuellt installbart tryck och varvid da utgangskroppen genom friktion drives av ingangskroppen. Dessa allmant kanda kopplingar ha den olagenheten, att utgangssidan har en fallande karakteristika, dvs. att om utgangsdelen belastas med ett vridmoment som aT stone an det vridmoment som koppling kan Overfora utan kopplingen icke endast slirar utan aven det avgivna vridmomentet blir mindre. Under vissa omstandigheter am det sistnamnda fOrhallandet joke onskvart och man skulle vid slirande koppling onska overfora ett storm moment om detta ligger inom bestamda granser. Bum belastningen fran utgangsdelen for hog slirar kopplingen helt och utgangsdelen star stilla. Inventor: R D Nigel Priority requested on 27th & 1956 (The Netherlands) The present invention relates to a preferably installable, rotatable friction clutch. Such connections are known in the art and can e.g. consisting of two bodies, the span is pressed against each other by means of a possible installable pressure and whereby the output body is driven by friction by the input body. These generally known connections have the disadvantage that the output side has a descending characteristic, ie. that if the output part is loaded with a torque such as aT stone other than the torque which the clutch can Transmit without the clutch not only slipping but also the delivered torque becomes smaller. Under certain circumstances, the latter relationship is ridiculous and one would, in the event of a slippery connection, wish to transmit a stormy moment if this is within certain limits. The boom load from the output part for hog slips the coupling completely and the output part stands still.

Kopplingen enlig uppfinningen har en stigande karakteristika, dvs. vid hogre belastning hos utgangsdelen och darvid &kande slirning akar det avgivna vridmomentet. Darvid blir varVtalet hos utgangsdelen pa grund av slirningen lagre. Dessutom maste drivmekanismen vid konstant varvtal kunna leverera ett dylikt, storre vridmoment. En dylik friktionskoppling med 'Must en med en ingangseller utgangsclet sten_ fkbunden; ringformad kropp av elastiskt material med hag hire fnktion kanneteeknas enligt uppfinningen tlarav, att den andra delen :oinfattar ett eller ,fiera par rullande element, vilka aro belagna parvis mittemot varamira :pa hada sidor om det elastiska organet, varvid den yttre periferin hos de rtillatide elethenten sainverkar, loretradesvis med installbart tryck, med det elastiska organet, medan al1a4uIlaride elemeht -pa. ena sidan hos organet aro roterbart monterade i en hallare som dr fOrbunden med den andra delen, medan de rullande elementen pa den andra sidan aro roterbart inneslutna i en hallare, som endast kan rOra sig i axiell riktning relativt namnda, andra del och är axiellt belastad med en fOretradesvis instillhar fj der. En dylik koppling har i verkligheten den onskade stigande karakteristikan. Den elastiska kroppen kan besta av naturgummi, konstgummi eller ett annat konstharts. Kallflytande amnen aro naturligtvis olampliga. The coupling according to the invention has a rising characteristic, i.e. at higher loads on the output part and thereby slipping, the delivered torque increases. In this case, the speed of the output part is stored due to the slip. In addition, at constant speed, the drive mechanism must be able to deliver such a larger torque. Such a friction coupling with 'Must one with an input or output clet sten_ fkbunden; annular body of elastic material having the same function can be characterized according to the invention in that the second part: comprises one or more pairs of rolling elements, which are coated in pairs opposite the varamira: on either side of the elastic member, the outer periphery of the the elethent sain effect, loretradesvis with installable pressure, with the elastic member, while al1a4uIlaride elemeht -pa. one side of the member is rotatably mounted in a holder which is connected to the second part, while the rolling elements on the other side are rotatably enclosed in a holder which can only move in axial direction relative to said second part and is axially loaded with a FOretradesvis instillhar fj der. Such a connection actually has the desired rising characteristic. The elastic body can consist of natural rubber, synthetic rubber or another synthetic resin. Cold-liquid substances are, of course, unsuitable.

Lampligen samarbetar enligt en utforingsform .av uppfinningen den rullande delen med en sidoyta hos den ringformade elastiska kroppen, vilket ger en enkel konstruktion. According to one embodiment of the invention, the rolling member cooperates with a side surface of the annular elastic body, which provides a simple construction.

Enligt uppfinningen är en roterbar, Viretradesvis installbar friktionskoppling, innefattande en drivande del och en driven del, varvid minst ett ringformigt organ av elastiskt material med hog inre friktion är fast pa en av namnda delar, kanneteeknad darav, att den andra delen omfattar ett antal rullande element, vilka aro belagna parvis mittemot varandra pa bada sidor om det elastiska organet, varvid den yttre periferin hos de rullande elementen samverkar, fOretradesvis mod install-ban tryck, med det elastiska organet, medan alla rullande element som sainverka med ena sidan hos detta organ aro roterbart monterade i en hallare, som am f8rbunden hied den andra delen, medan de rullande elementen som samverka med den andra sidan av det ringformiga -organet aro roterbart inneslutna i en .hailare, som,endast kan rOra sig i axiell riktning relativt namnda, andra del och ãr axiellt b,elastad med en 'fOretradesvis in:stallbar fjader.. According to the invention, a rotatable, Viretradesvis installable friction coupling, comprising a driving part and a driven part, wherein at least one annular member of elastic material with high internal friction is fixed to one of said parts, can be characterized in that the second part comprises a number of rolling elements, which are coated in pairs opposite each other on both sides of the elastic member, the outer periphery of the rolling elements cooperating, in particular against installation pressure, with the elastic member, while all rolling elements acting on one side of this member are rotatably mounted in a holder which is connected to the second part, while the rolling elements cooperating with the other side of the annular member are rotatably enclosed in a hailer which can only move in the axial direction relative to said, second part and is axially b, elastated with a 'Preferably in: adjustable spring ..

Uppfinningen beskrives riarmare mad .hanvisning till i bifogade ritning visade ::; 2— — Fig. 1 är ett snitt genom en roterande friktionskoppling enligt fig. 2, Iangs linj en III—III, sett i pilriktningen. The invention is further described by reference to the drawings shown in the accompanying drawing; Fig. 1 is a section through a rotating friction coupling according to Fig. 2, along line III-III, seen in the direction of the arrow.

Fig. 2 är en bild framifran av kopplingen enligt fig. 1. Fig. 2 is a front view of the coupling according to Fig. 1.

Fig. 3 är ett snitt tangs linj en V—V genom kopplingen enligt fig. 4, a-yen Mr sett i pilriktningen. Fig. 3 is a section of the tangent pliers a V-V through the coupling according to Fig. 4, a-yen Mr seen in the direction of the arrow.

Fig. 4 är ett snitt enligt fig. 3 langs linjen VI—VI sett i pilriktningen och fig. 5 ãr ett snitt genom ett utforande av en friktionskoppling, vid vilken kullager kommer till anvandning. Fig. 4 is a section according to Fig. 3 along the line VI-VI seen in the direction of the arrow and Fig. 5 is a section through an embodiment of a friction coupling, in which ball bearings are used.

I fig. 1 och 2 är ingangsaxeln betecknad med 1, utgangsaxeln med 7. 1VIed axeln 1 är medelst en kil 14 och en tryckskruv 15 en flans 16 forbunden, kring vilken en ring 17 är anordnad. Mellan ringen 17 och flansen 16 är en gummiring 18 inklamd. PA utgangsaxeln 7 ãr en flans 19 fast medelst en kil 20 och en tryckskruv 21. Denna flans uppbar fyra par stift 22-23. Sullen. 22 aro stelt forbundna med flansen 19 medan stiften 23 kunna utfora en liten radiell rorelse. De hada stiften uppbara rullar 24 som aro vridbara kring stiften och mellan vart och ett av stiftparen är en dragfjader 25 an.ordnad, varigenom vane par rullar alltid omsluter gummiringen 18 under tryck. Aven denna koppling har en. stigande karakteristika. In Figs. 1 and 2, the input shaft is denoted by 1, the output shaft by 7. In front of the shaft 1 a flange 16 is connected by means of a wedge 14 and a pressure screw 15, around which a ring 17 is arranged. Between the ring 17 and the flange 16 a rubber ring 18 is clamped. On the output shaft 7, a flange 19 is fixed by means of a wedge 20 and a pressure screw 21. This flange carried four pairs of pins 22-23. Sullen. 22 are rigidly connected to the flange 19 while the pins 23 can perform a small radial movement. The had pins carry rollers 24 which are rotatable about the pins and between each of the pair of pins a tension spring 25 is arranged, whereby the usual pair of rollers always encloses the rubber ring 18 under pressure. This connection also has one. rising characteristics.

I fig. 3 och 4 bildar ett kugghjul 30 ingiingsdelen hos kopplingen och en del hos en kropp 31. PA denna kropp 31 är med skruvar 32 och en klamring 32a en gummiring 33 fast. Pa bada sidor om denna gummiring ligga fyra rullpar som vardera besta av rullarna 34 och 35. Rullarna 34 are vridbara kring stiften 36, som aro fast forbundna med en del 37, som bildar utgangen hos kopplingen. En barare 38 i vilken stift 39 aro anordnade, kring vilka rullarna 35 rotera, befinner sig axiellt forskjutbar pa utgangsdelen 37 och är sakrad mot vridning medelst en kil 40. En hylsa 41 ãr vid anden fi5rsedd med en flans 42 och vid den andra anden med en skruvganga 43. Med denna skruvganga samverkar en installhar mutter 44 °eh mellan denim mutter 44 och delen 38 befinner sig en tryckfjader 45. Slutligen uppbar en axel 46 kopplingen. In Figs. 3 and 4, a gear 30 forms the input part of the coupling and a part of a body 31. On this body 31, with screws 32 and a clamping ring 32a, a rubber ring 33 is fixed. On both sides of this rubber ring are four pairs of rollers, each consisting of the rollers 34 and 35. The rollers 34 are rotatable about the pins 36, which are fixedly connected to a part 37, which forms the outlet of the coupling. A carrier 38 in which pins 39 are arranged, around which the rollers 35 rotate, is axially displaceable on the exit part 37 and is secured against rotation by means of a wedge 40. A sleeve 41 is provided at one end with a flange 42 and at the other end with a screw thread 43. With this screw thread an installhar nut 44 ° eh cooperates between the denim nut 44 and the part 38 there is a compression spring 45. Finally, a shaft 46 supported the coupling.

Verkningssattet hos kopplingen ar enkelt. Vid drivning av kugghjulet 30 medbringas kroppen 31 och gummiringen 33. Rullarna 34 och 35 tryckas av tryckfjadern 45 pa bada sidor mot gummiringen 33 och dessa rullar medbringa utgangsdelen 37. Genom vridning av muttern 44 ken trycket hos rullarna mat gummiringen installas, varigenom dess maximala av utgangsdelen 37 overforbara vridmomerit är installbart. Aven denna koppling har en stigande karakteristika. The mode of action of the coupling is simple. When driving the gear 30, the body 31 and the rubber ring 33 are brought along. The rollers 34 and 35 are pressed by the compression spring 45 on both sides against the rubber ring 33 and these rollers carry the outlet part 37. By turning the nut 44 the pressure of the rollers is fed. the output part 37 transferable rotary momerite is installable. This connection also has a rising characteristic.

Materialet i ringarna 18 och 33 kan vara naturgummi, konstgummi eller ett liknande som dr elastiskt och som uppvisar en hog inre friktion, Kallflytande material aro olampliga. The material of the rings 18 and 33 may be natural rubber, synthetic rubber or the like which is elastic and which exhibits a high internal friction. Cold liquid materials are unsuitable.

Slutligen visar fig. 5 en. ytterligare enkel utformning av en koppling enligt uppfinningen. 50 betecknar en ett kugghjul 51 uppbarande ingangsdel. Pa derma ingangsdel 50 Sr med skruvar 52 en ring 53 fast ,och mellan denna ring 53 och kroppen 50 befinner sig en gummiring 54. Kammen 55 pa utgangsaxeln har en ansats 56 och en ytterligare ansats 57. Den sistnamnda Sr fErsedd med skruvgangor 58. Mot andytan hos kammen 55 Egger en lopring 59 med hallare och kulor 60. Pa andra sidan om gummiringen 54 befinner sig en Ilknande kulhallare 61 med en lopring 62, som ligger i en. tryekkropp 63. En enkel fja.drande kropp som bestar av p6. varandra stapiade plattor av fjadrande metall, sasom 1. ex. av hard brons, Sr betecknad med 64. Enheten fastdrages medelst en mutter 65 och lasmutter 66. Aven denna enhet bildar en roterbar friktionskoppling med stigande karakteristika och har den f5rdelen, att de dyrbara kopplingsdelarna till storsta delen kunna ersattas med normala detaljer. Finally, Fig. 5 shows a. further simple design of a coupling according to the invention. 50 denotes an input part carrying a gear 51. On this input part 50 a ring 53 is fixed with screws 52, and between this ring 53 and the body 50 there is a rubber ring 54. The cam 55 on the output shaft has a shoulder 56 and a further shoulder 57. The latter is provided with screw threads 58. the end face of the cam 55 Egger a running ring 59 with holders and balls 60. On the other side of the rubber ring 54 is a resembling ball holding 61 with a running ring 62, which lies in one. compression body 63. A simple resilient body consisting of p6. stacked plates of resilient metal, such as 1. ex. of hard bronze, Sr denoted by 64. The unit is fastened by means of a nut 65 and locking nut 66. This unit also forms a rotatable friction coupling with increasing characteristics and has the advantage that the expensive coupling parts can for the most part be replaced with normal parts.

Claims

Patent claim: A rotatable, preferably installable friction coupling, comprising a driving part (30) and a driven part (37), wherein at least one annular member (33) of elastic material with high internal friction is fixed on one of said parts (30) , characterized in that the second part (37) comprises a number of rolling elements, which are coated in pairs opposite each other p6. had sides of the elastic member (33), the outer periphery having the rolling elements cooperating, preferably with installable pressure, with the elastic member (33), while all the rolling elements (31) cooperating with one side have this member are rotatably mounted in a holder, which is connected to the second part (37), while the rolling elements (35) cooperating with the other side of the annular member (33) are rotatably enclosed in a holder (38), which can only move in the axial direction relative to said second part (37) and Sr axially loaded with a preferably installable spring (45). Request publications: Patent patent ter frein Sweden 142 802; Germany 831 481.