DK153817B

DK153817B - WHEEL PAINTING FOR A TRACTOR OR A LIKE WORKING MACHINE.

Info

Publication number: DK153817B
Application number: DK556881A
Authority: DK
Inventors: Aimo Korte
Original assignee: Korte & Kni Kortteen Konepaja
Priority date: 1980-12-19
Filing date: 1981-12-15
Publication date: 1988-09-12
Also published as: FI803971L; IT8149889A0; BR8108215A; DK153817C; FI63692B; FR2496561B1; IT1144530B; GB2089739B; SE8107552L; FR2496561A1; DK556881A; SE440887B; DE3148701A1; FI63692C; GB2089739A

Description

DK 153817BDK 153817B

Opfindelsen angår et hjularrangement til en traktor eller en lignende arbejdsmaskine, hvor et ydre tiflægshjuf med en fælg ved hjælp af en spændemekanisme er fastgjort i bredderetningen til et indre hjul, og hvor den mod det indre hjul vendende kant af tillægshjulets fælg 5 er forlænget for at danne en udefter fra dækket udragende, cirkelformet flange.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a wheel arrangement for a tractor or similar working machine, in which an outer two-ply shaft with a rim is fixed by means of a tensioning mechanism in the width direction to an inner wheel, and where the edge facing the inner wheel is extended by the rim of the auxiliary wheel 5. form an outwardly circular flange protruding from the deck.

Der kendes et hjularrangement af denne art fra beskrivelsen til finsk fremlæggelsesskrift nr. 49692. Ifølge denne kendte teknik består tillægshjulets fælg af en pladecylinder, langs hvis ene kant der er an-10 bragt et ringformet vinkeljern, som danner vulstflange til den ene af vulsterne til tillægshjulets dæk. I afstand fra pladecylinderens modsatte kant er der til denne fastgjort et ringformet T-jern, der danner vulstflange til den anden vulst til hjælpehjulets dæk. Den i forhold til det ringformede T-jern udragende del af pladecylinderen udgør forlængelsen 15 af tillægshjulets fælg, der danner den udefter fra tillægshjulets dæk ud ragende cirkelformede flange. Denne er i hjælpehjulets monterede stilling fastholdt mod undersiden af en vulstflange til det indre hjuls fælg ved hjælp af spændemekanksmen, der består af i det mindste én kæde, hvis ene ende er fastgjort til en konsol, som på sin side er fastgjort til inder-20 siden af pladecylinderen, og hvis anden ende ved hjælp af en tap er fastgjort til en sjækkel, som er forbundet med det indre hjuls fælg, nemlig ved hjælp af en af de bolte, som forbinder denne med det indre hjuls fælgkrop. Denne udformning bevirker, at det er vanskeligt· at få adgang til den pågældende bolt, og kædearrangementet optager samtidig meget plads 25 inden for tillægshjulets fælg. Desuden indebærer kædearrangementet, at der skal anvendes mange dele til montering af hjælpehjulet, og hjælpehjulets montering er kompliceret.A wheel arrangement of this kind is known from the specification of Finnish Patent Specification No. 49692. According to this known technique, the rim of the auxiliary wheel consists of a plate cylinder, along which one edge is arranged an annular angular iron, which forms a bead flange for one of the beads. the tire of the auxiliary wheel. Spaced apart from the opposite edge of the plate cylinder is an annular T-iron which forms a bead flange for the second bead for the auxiliary wheel tire. The portion of the plate cylinder projecting in relation to the annular T-iron constitutes the extension 15 of the rim of the auxiliary wheel, which forms it protruding outwardly from the tire of the auxiliary wheel. This is held in the mounted position of the auxiliary wheel against the underside of a bead flange for the rim of the inner wheel by means of the tensioning sleeve, which consists of at least one chain, one end of which is attached to a bracket, which in turn is fixed to the inner 20 the side of the plate cylinder and the other end of which is secured by means of a pin to a shackle connected to the rim of the inner wheel, namely by means of one of the bolts connecting it to the rim of the inner wheel. This design makes it difficult to access the bolt in question, and the chain arrangement also occupies a great deal of space 25 within the rim of the auxiliary wheel. Furthermore, the chain arrangement means that many parts have to be used for mounting the auxiliary wheel and the mounting of the auxiliary wheel is complicated.

Det er formålet med opfindelsen at anvise en simplificeret udformning af dette kendte hjularrangement, der letter fremstillingen og monteringen 30 af tillægshjulet, og som egner sig til hjul med alle størrelser uafhængigt af forskellige traktormærker og af de til fælgtyperne anvendte delingsforskelle, hvad angår fastgørelsesboltene.SUMMARY OF THE INVENTION It is an object of the invention to provide a simplified design of this known wheel arrangement, which facilitates the manufacture and mounting of the auxiliary wheel, and which is suitable for wheels of all sizes independently of different tractor brands and of the parting differences used for the rim types as regards the fastening bolts.

Hjularrangementet ifølge opfindelsen er ejendommeligt ved, at tillægshjulets fælg samt den nævnte fjange er fremstillet ved udformning 35 af et som en enhed udformet emne, og at tillægshjulets udragende flange og det indre hjuls fælg hver er forsynet med mindst én med fælgens periferi i det væsentlige parallel låsekile, hvilke låsekilers skrå- 2The wheel arrangement according to the invention is characterized in that the rim of the auxiliary wheel as well as said spring is made by forming a unit-shaped workpiece, and that the protruding flange of the auxiliary wheel and the rim of the inner wheel are each provided with at least one with the periphery of the rim substantially parallel. lock wedge, which slant wedge 2

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flader er således orienterede, at de som følge af en relativ drejningsbevægelse af fælgene omkring deres fælles rotationsakse vil trykke fælgene mod hinanden og låse fælgene til hinanden, samt at spænde-mekanismen er indrettet til at fastholde fælgene mod drejning af disse 5 i den modsatte drejningsretning.surfaces are oriented such that, due to relative rotational movement of the rims around their common axis of rotation, they will press the rims against each other and lock the rims to each other, and that the clamping mechanism is arranged to hold the rims against rotation of these rims in the opposite direction of rotation. .

Herved opnås der en simpel udformning af tillægshjulets fælg og en let montering af tiilægshjulet. Såfremt det drejer sig om et stort, tungt og dermed vanskeligt manøvrerbart tillægshjul kan dette blot anbringes på en sådan måde i forhold til det indre hjul, at de to kilers skråflader 10 vender mod hinanden. Når man derefter drejer det indre hjul ved hjælp af det tilhørende køretøjs motor, enten i frem-retningen eller bak-retningen, nemlig alt efter hvilken vej låsekilernes skråflader hælder, og denne drejning sker rykvis, vil det indre hjul skride i forhold til sit underlag, og skråfladerne vil blive slået mod hinanden, hvor-15 ved de som følge af deres hældningsretning trækker de to hjuls fælge mod hinanden og låser dem. Derefter sikres de to fælge mod relativ drejning i den modsatte retning ved hjælp af spændemekanismen, således at sammenkoblingen er sikret, og tillægshjulet ikke kan løsnes, når det pågældende indre hjul drejes i modsat retning af sammenkoblingsretningen under det 20 pågældende køretøjs arbejde. Demonteringen sker i så fald ved først at løsne spændemekanismen for derefter at tilvejebringe en rykvis drejning af det indre hjul ved hjælp af køretøjsmotoren i modsat retning af sammenkoblingsretningen, hvorved låsekilernes skråflader bringes ud af indgreb med hinanden og tillægshjulet kan fjernes.This results in a simple design of the rim of the auxiliary wheel and an easy mounting of the auxiliary wheel. In the case of a large, heavy and thus difficult maneuverable auxiliary wheel, this can only be arranged in such a manner with respect to the inner wheel that the oblique surfaces 10 of the two wedges face each other. Then, when the inner wheel is rotated by the motor of the associated vehicle, either in the forward or reverse direction, whichever way the inclined surfaces of the lock wedges are inclined, and this rotation takes place in a jerky manner, the inner wheel will slide relative to its ground , and the inclined surfaces will be struck against each other, whereby, as a result of their inclination, they pull the rims of the two wheels against each other and lock them. Thereafter, the two rims are secured against relative rotation in the opposite direction by the clamping mechanism so that the coupling is secured and the additional wheel cannot be loosened when the respective inner wheel is turned in the opposite direction by the coupling direction during the work of the vehicle concerned. In this case, the disassembly is done by first loosening the clamping mechanism and then providing a jerky rotation of the inner wheel by means of the vehicle motor in the opposite direction of the coupling direction, whereby the inclined surfaces of the locking wedges are disengaged and the additional wheel can be removed.

25 Ifølge en udførelsesform for den foreliggende opfindelse udgøres spændemekanismen hensigtsmæssigt af en låsemøtrik eller en tilsvarende mekanisme, der forløber tilnærmelsesvis langs fælgenes periferi og er fastgjort ved kilerne, og er indrettet til at tilvejebringe fagigené.s . relative låsende rotationsbevægelse. Denne udførelsesform er fordelagtig, 30 når det drejer sig om forholdsvis lette tillægshjul, idet man i henhold til denne udførelsesform kan anbringe tillægshjulet med den tilhørende låsekiles skråflade umiddelbart i nærheden af skråfladen på det indre hjuls låsekile, hvorefter den relative drejning af hjulene til presning af skråfladerne mod hinanden kan tilvejebringes ved hjælp af møtrikken, 35 og endvidere kan låsekilernes skråflader også bevæges fra hinanden ved drejning af den pågældende låsemøtrik i den modsatte omdrejningsretning.According to an embodiment of the present invention, the clamping mechanism is conveniently constituted by a locking nut or a corresponding mechanism extending approximately along the periphery of the rims and secured to the wedges and adapted to provide phage genesis. relative locking rotational motion. This embodiment is advantageous in the case of relatively light auxiliary wheels, in accordance with this embodiment, the auxiliary wheel with the inclined surface of the associated lock wedge can be placed immediately adjacent the inclined surface of the lock wedge of the inner wheel, after which the relative rotation of the wheels for pressing the inclined faces towards each other can be provided by means of the nut, 35 and furthermore the inclined faces of the locking wedges can also be moved apart by turning the respective locking nut in the opposite direction of rotation.

33

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Opfindelsen skal herefter forklares nærmere under henvisning til tegningen, hvor fig. 1 viser en del af et lodret snit af en udførelsesform for hjularrangementet ifølge opfindelsen i form af et traktorhjul 5 og et til siden for dette og mod ydersiden anbragt tillægshjul, og fig. 2 et udsnit af det i fig. 1 viste hjularrangement, set indefra til belysning af to kiler og en spændemekanisme.The invention will now be explained in more detail with reference to the drawing, in which fig. 1 shows a part of a vertical section of an embodiment of the wheel arrangement according to the invention in the form of a tractor wheel 5 and a side wheel for this and an additional wheel mounted on the outside; and FIG. 2 is a sectional view of the embodiment of FIG. 1 shows an inside arrangement for illuminating two wedges and a clamping mechanism.

På tegningen betegner 1 baghjulet til en traktor, og dette består 10 af et dæk, der er monteret på en fælg 2. Fælgen har et antal ører 3, ved hjælp af hvilke baghjulet ved hjælp af bolte på normal måde aftageligt fastgøres til en hjulskive. Et tillægshjul 4 består af et dæk, der er monteret på en tillægsfælg 5. Denne tillægsfælg er fremstillet af et cylindrisk emne alene ved spånfri udformning. Tillægsfælgen 5 består således af 15 en enhed, og der forekommer ikke nogen svejsefuger eller lignende sammenføjninger. Tillægsfælgen 5 er udformet med en forlængelse, der danner en udefter fra tillægshjulets dæk ragende, cirkelformet flange 9.In the drawing, 1 denotes the rear wheel of a tractor and this consists of a tire mounted on a rim 2. The rim has a number of ears 3, by means of which the rear wheel is normally removably fastened to a wheel disc by means of bolts. An auxiliary wheel 4 consists of a tire mounted on an auxiliary rim 5. This auxiliary rim is made of a cylindrical part only by chip-free design. Thus, the additional rim 5 consists of one unit, and no weld joints or similar joints occur. The auxiliary rim 5 is formed with an extension which forms a circular flange 9 extending from the tire of the auxiliary wheel.

Tillægsfælgen 5 fastgøres til traktorhjulets fælg ved hjælp af 20 mindst to låsekiler 6 og 7 samt en spændemekanisme 8. Låsekilen 6 er fastgjort på indersiden af flangen 9 og strækker sig i dennes omkredsretning samt har en skråflade 10, der forløber under en spids vinkel I forhold til den kant af kilen 6, der er nærmest flangen 9's frie kant.The auxiliary rim 5 is secured to the rim of the tractor wheel by means of at least two locking wedges 6 and 7 and a clamping mechanism 8. The locking wedge 6 is fixed on the inside of the flange 9 and extends in its circumferential direction and has an inclined surface 10 extending at an acute angle in relation to to the edge of the wedge 6 which is closest to the free edge of the flange 9.

Låsekilen 7 er fastgjort til fælgen 2, således at den strækker sig i fæl-25 gen 2's omkredsretning og rager ud i sideretningen fra fælgkroppen og mellem sig og den hosliggende vulstflange på fælgen 2 danner et mellemrum, hvori flangen 9 kan indføres. Kilen 7 har en skråflade 11, der danner en stump vinkel i forhold til den kant af kilen 7, der befinder sig nærmest fælgen 2. Kilerne 6 og 7's skråflader 10 og 11 forløber 30 parallelt med hinanden i tillægshjulets monterede stilling. Låsemekanismen 8 består af en lang møtrik 12 og to gafler 13 og 14, der er svingeligt forbundet med henholdsvis baghjulsfælgen 2 og tillægsfælgen 5 ved hjælp af tappe, henholdsvis 15 og 16. Gaflerne 13,14's skafter har gevind med modsatte gevindstigningsretninger, og møtrikken 12 har indvendige 35 gevind med tilsvarende stigningsretninger. Fastspændingen af tillægshjulet kan ske f.eks. ved at dreje tillægsfælgen 5 i forhold til fælgen 2 omkring disses fælles omdrejningsakse ved drejning af møtrikken 12 ved hjælp af en skruenøgle. Spændemekanismen kan imidlertid også beståThe lock wedge 7 is attached to the rim 2 so that it extends in the circumferential direction of the rim 2 and protrudes in the lateral direction from the rim body and between it and the adjacent bead flange on the rim 2 forms a space in which the flange 9 can be inserted. The wedge 7 has an inclined surface 11 which forms a blunt angle with respect to the edge of the wedge 7 which is closest to the rim 2. The inclined surfaces 10 and 11 of the wedges 6 and 7 extend parallel to each other in the mounted position of the auxiliary wheel. The locking mechanism 8 consists of a long nut 12 and two forks 13 and 14 which are pivotally connected to the rear wheel rim 2 and the auxiliary rim 5 by means of pins 15 and 16. respectively, the shafts of the forks 13,14 have threads with opposite threaded directions, and the nut 12 has 35 internal threads with corresponding pitch directions. The additional wheel can be clamped e.g. by rotating the auxiliary rim 5 relative to the rim 2 about their common axis of rotation by turning the nut 12 by means of a wrench. However, the clamping mechanism may also exist

Claims

20 When loosening the auxiliary wheel, the clamping mechanism 8 is loosened so much that one of the pins 15,16 is loosened in its hole and can be removed, after which the rear wheel of the tractor is rotated jerkly by reversing with a sudden jerk, whereby the rim 2 is moved relative to its rotation. the rim 5 in such a way that the locking wedges detach from the one shown in FIG. 25, whereby the auxiliary wheel can be pivoted away from its position. Claims.

1. Wheel arrangement for a tractor or similar working machine, in which an outer additional wheel (4) with a rim (5) is secured by means of a tensioning mechanism (8) in the width direction to an inner wheel (1) and 30 against it. inner wheel facing edge of the rim (5) of the auxiliary wheel (4) is extended to form an outwardly circular-shaped flange (9) extending from the tire, characterized in that the rim (5) of the auxiliary wheel (4) and said flange (9) is made by forming a unit-shaped workpiece, and that the flange (9) and the rim (2) of the auxiliary wheel (4) and the rim (2) of the inner wheel (1) are each provided with at least one with the rim's substantially parallel locking wedge ( 6,7), the inclined faces (10, 11) of the lock wedges (6, 7) are oriented so that, due to a relative rotational movement of the rims (2 and 5) around their common axis of rotation, the rims (2 and 5) facing each other and locking the rims (2 and 5) together, and the clamping mechanism (8) is arranged to lock fold the rims (2 and 5) against turning them in the opposite direction of rotation.

Wheel arrangement according to claim 1, characterized in that the clamping mechanism is constituted by a locking nut (12) or a corresponding mechanism extending approximately along the periphery of the rims (2 and 5) and secured to the wedges (6 and 7) and adapted to to provide the relative locking rotational movement of the rims (2 and 5).