FR2529141A1 - Device for stabilising agricultural tractors - comprises pivoting arms housing drive-chains which carry wheels at their free ends - Google Patents

Device for stabilising agricultural tractors - comprises pivoting arms housing drive-chains which carry wheels at their free ends Download PDF

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Publication number
FR2529141A1
FR2529141A1 FR8211336A FR8211336A FR2529141A1 FR 2529141 A1 FR2529141 A1 FR 2529141A1 FR 8211336 A FR8211336 A FR 8211336A FR 8211336 A FR8211336 A FR 8211336A FR 2529141 A1 FR2529141 A1 FR 2529141A1
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France
Prior art keywords
chains
pinions
wheels
stabilising
tractor
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FR8211336A
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French (fr)
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RASPAIL ALEXIS
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RASPAIL ALEXIS
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Priority to FR8211336A priority Critical patent/FR2529141A1/en
Publication of FR2529141A1 publication Critical patent/FR2529141A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/033—Spring characteristics, e.g. mechanical springs and mechanical adjusting means characterised by regulating means acting on more than one spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D49/00—Tractors
    • B62D49/08—Tractors having means for preventing overturning or tipping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D61/00—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern
    • B62D61/12—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with variable number of ground engaging wheels, e.g. with some wheels arranged higher than others, or with retractable wheels

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Agricultural Machines (AREA)

Abstract

The device keeps a tractor level when moving transversely across a steep incline and comprises compensating mechanism positioned either side of the differential gearbox. Each compensating mechanism consists of a pivoting arm (16) which transmits drive to the wheel via a chain (17) passing over pinions (15). The axle drive-shafts (14) are pref. attached directly to the upper pinions (15) whilst the lower pinions carry stub-axles (18) on which the wheels are mounted. The lower ends (20) of the arms (16) are pref. connected to rams which pivot the arms into the desired position.

Description

L'objet de l'invention concerne un dispositif équili breur de tracteur agricole. The object of the invention relates to a balancing device for an agricultural tractor.

I1 est destiné à permettre de maintenir l'aplomb du tracteur quelle que soit la dénivellation transversale, passagère ou continue du sol porteur, afin d ' améliorer le rendement et les conditions d'exécution de travail. I1 is intended to maintain the verticality of the tractor regardless of the transverse, transient or continuous drop of the load-bearing soil, in order to improve the performance and the working conditions.

Dans les dispositifs connus suivant la figure 2 donnée à titre comparatif la position inclinée du tracteur oblige le pneu à travailler complétement d'un côté en risquant de provoquer la déchirure des crampons par les déformations. Cette inclinaison fait travailler anormalement le chassis,les porte-outils et rendent la conduite pénible. De plus, l'usager subit une déformation de la colonne vertébrale et des efforts musculaires constants pour se maintenir en position normale. In the known devices according to FIG. 2 given by way of comparison, the inclined position of the tractor forces the tire to work completely on one side, risking causing the crampons to be torn by deformations. This inclination makes the chassis, the tool holders work abnormally and makes driving difficult. In addition, the user undergoes a deformation of the spine and constant muscular effort to maintain himself in the normal position.

Le dispositif suivant l'invention supprime ces inconvénients et permet aux roues sustentatrices de suivre les dénivel- lation du sol tout en maintenant l'axe du chassis dans son aplomb longitudinal et transversal. The device according to the invention eliminates these drawbacks and allows the lifting wheels to follow the unevenness of the ground while maintaining the axis of the chassis in its longitudinal and transverse alignment.

I1 est constitué par l'application d'un balancier compensateur positionné de part et d'autre des trompettes de la boite à vitesse avec une fixation mobile tourillonnante et avec transmission par chaîne et par pignon solidaire de l'arbre de support, la force motrice aux roues. I1 consists of the application of a compensating balance positioned on either side of the trumpets of the gearbox with a swiveling movable attachment and with chain and pinion transmission secured to the support shaft, the driving force to the wheels.

Sur les dessins annexés, donnés à titre d'exemple non limitatif, d'une des formes de réalisation de l'objet de l'invention
La figure 1 représente la suspension traditionnelle des tranchées.In the accompanying drawings, given by way of nonlimiting example, of one of the embodiments of the subject of the invention
Figure 1 shows the traditional suspension of trenches.

La figure 2 montre dans les mêmes conditions les effets du dispositif équilibreur. Figure 2 shows under the same conditions the effects of the balancing device.

La figure 3 est une vue en plan du tracteur dans son ensemble. Figure 3 is a plan view of the tractor as a whole.

La figure 4 montre la bolte à vitesse et le positionnement des trompettes reliées aux balanciers compensateurs.  Figure 4 shows the speed bolt and the positioning of the trumpets connected to the compensating pendulums.

La figure 5 représente l'ensemble des vérins de compensation. Figure 5 shows all of the compensation cylinders.

La figure 6 est une vue en élévation du détail constructif du balancier compensateur. Figure 6 is an elevational view of the construction detail of the compensating balance.

Dans les dispositifs actuels, les dénivellations 1, 2 entraînent les déformations 3 des pneumatiques et l'inclinaison du chassis 4. In current devices, the differences in level 1, 2 cause the deformations 3 of the tires and the inclination of the chassis 4.

Le dispositif suivant l'invention permet au chassis 4 de rester parallèle au sol porteur 1 quelle que soit la profondeur de la dénivellation 2 sous l'action des balanciers 6, 7, on supprime ainsi la position penchée du conducteur tout en augmentant l'adhérence du chassis. Le centre de gravité latéral passera toujours par l'axe, d'où répartition des charges et disparition du risque de renversement. The device according to the invention allows the chassis 4 to remain parallel to the load-bearing ground 1 whatever the depth of the drop 2 under the action of the rockers 6, 7, this eliminates the leaning position of the driver while increasing the grip. of the chassis. The lateral center of gravity will always pass by the axis, from where load distribution and disappearance of the risk of overturning.

Cet ensemble équilibreur est placé de part et d' autre de la boîte à vitesses 8 avec bras articulés 6, 7 porteurs de flas ques de roues 9, 10 et supportant les verîns équilibreurs. This balancer assembly is placed on either side of the gearbox 8 with articulated arms 6, 7 carrying flanges of wheels 9, 10 and supporting the balancing jacks.

De part et d'autre de la boîte à vitesses Fig 4 sont fixées les trompettes 11, 12 dont les arbres moteur 13, 14 entraînent le pignon de sortie de boîte 15 et supportent les bras mobiles 16 (Fig 5) formant carter et dans lesquels les chaînes 17 entraînent les flasques de roues 18. Ce bras tourillonne autour de l'arbre 14. On either side of the gearbox Fig 4 are fixed the trumpets 11, 12 whose motor shafts 13, 14 drive the gearbox output pinion 15 and support the movable arms 16 (Fig 5) forming a housing and in which the chains 17 drive the wheel flanges 18. This arm pivots around the shaft 14.

I1 comporte un disque de frein 19 à sa partie supérieure. La base de cet arbre est solidaire de l'arbre 20 relise au verin de commande. I1 has a brake disc 19 at its upper part. The base of this shaft is integral with the shaft 20 connected to the control jack.

Le mécanisme de maintien de parallélisme au sol figure 5 est constitué par deux verins accouplés 21, 22 par un arbre de transmission commun 25 destinés à relever un balancier au moment où l'autre descend avec un synchronisme parfait. The mechanism for maintaining parallelism to the ground in FIG. 5 is constituted by two jacks coupled 21, 22 by a common transmission shaft 25 intended to raise a pendulum when the other descends with perfect synchronism.

La distribution d'une quantité identique de fluide sous une même pression s'obtient si on introduit un volume égal dans l'un des verins à celui qu'on a retiré de l'autre en un temps simultané. A cet effet on peut utiliser un moto-réducteur 23 agissant sur la crémaillère 24 placée sur l'arbre de transmission 25 des verins. Le verin émetteur étant solidaire du vérin récepteur et vice versa. The distribution of an identical quantity of fluid under the same pressure is obtained if one introduces a volume equal in one of the jacks to that which one withdrew from the other in a simultaneous time. For this purpose one can use a geared motor 23 acting on the rack 24 placed on the transmission shaft 25 of the cylinders. The sending cylinder being integral with the receiving cylinder and vice versa.

Ce même dispositif est adaptable aux tracteurs à chenilles. This same device is adaptable to crawler tractors.

Les deux roues arrières du tracteur sont indépen dantes et leur hauteur variable en fonction des dénivellations du terrain. The two rear wheels of the tractor are independent and their height variable according to the unevenness of the terrain.

La régulation du parallélisme du chassis avec le sol permet le maintien de l'aplomb du tracteur, ce qui en fait un parallélisme artificiel. Lors d'un labour par exemple, l'abaissement d'une roue commandera les balanciers afin d'obtenir et cela en permanence un parallélisme parfait du tracteur avec le sol en abaissant au même instant et de la même valeur un balancier tout en faisant monter l'autre.  The regulation of the parallelism of the chassis with the ground keeps the tractor plumb, which makes it an artificial parallelism. When plowing, for example, the lowering of a wheel will control the pendulums in order to obtain a permanent parallel between the tractor and the ground, by lowering a pendulum at the same time and by the same value while raising the other.

Le rendement du tracteur sera augmenté, le travail plus régulier et la fatigue du conducteur supprimée en ce qui concerne sa recherche d 'équilibre.  The output of the tractor will be increased, the work more regular and the fatigue of the driver eliminated with regard to his search for balance.

Toutefois les formes, dimensions et dispositions des différents éléments pourront varier dans la limite des équivalents comme d'ailleurs les matières utilisées pour leur fabrication sans changer pour cela la conception générale de 1' invention qui vient d'être décrite.  However, the shapes, dimensions and arrangements of the various elements may vary within the limit of equivalents, as moreover the materials used for their manufacture without thereby changing the general design of the invention which has just been described.

Claims (3)

REVENDICATIONS 10 Dispositif équilibreur et stabilisateur de tracteur agricole destiné à permettre de maintenir d'aplomb le tracteur quelle que soit la dénivellation transversale, passagère ou continue du sol porteur, afin d'améliorer le rendement et les conditions d'exécution de travail, se caractérisant par l'applica- tion de balanciers compensateurs (6, 7) positionnés de part et d'autre des trompettes (11, 12) de la boîte à vitesse (8) avec fixation mobile tourillonnante et transmettant par chaîne (17), par pignon (15) solidaire de l'axe de support la force motrice aux roues (9, 10). 10 Balancing and stabilizing device for an agricultural tractor intended to keep the tractor plumb regardless of the transverse, transient or continuous drop in the load-bearing soil, in order to improve the yield and the conditions of work execution, characterized by the application of compensating balancers (6, 7) positioned on either side of the trumpets (11, 12) of the gearbox (8) with swiveling movable fixing and transmitting by chain (17), by pinion ( 15) integral with the support axis the driving force on the wheels (9, 10). 20 Dispositif suivant la revendication 1 se caractérisant par le fait que les trompettes (11, 12) positionnent les arbres moteurs (13, 14) qui sont reliés à leurs extrémités à des pignons (15) et supportent les bras formant carter (16) pourvus à leurs extrémités inférieures d'un pignon récepteur (15) entraîné par la chaîne (17j et solidaire du flasque (18) porteur de roue. 20 Device according to claim 1 characterized in that the trumpets (11, 12) position the drive shafts (13, 14) which are connected at their ends to pinions (15) and support the casing arms (16) provided at their lower ends of a receiving pinion (15) driven by the chain (17j and integral with the flange (18) carrying the wheel. 30 Dispositif suivant la revendication 1 se caractérisant par le fait que les balanciers formant carter (16) sont pourvus à leur partie inférieure sur leur parement interne d'un arbre (20) relié aux verins, alors qu'un disque de freinage sur leur parement externe supérieur prolonge les arbres moteurs (13, 14). 30 Device according to claim 1 characterized in that the rockers forming the housing (16) are provided at their lower part on their internal facing with a shaft (20) connected to the jacks, while a braking disc on their facing upper outer extends the drive shafts (13, 14). 40 Dispositif suivant la revendication 1 se caractérisant par le fait que le dispositif compensateur est formé par des verins (21, 22) accouplés par un arbre commun (25) pourvu d'une crémaillère (24) se crantant sur la roue d'entraînement d'un moto-réducteur (23).  40 Device according to claim 1 characterized in that the compensating device is formed by jacks (21, 22) coupled by a common shaft (25) provided with a rack (24) notching on the drive wheel d '' a gear motor (23).
FR8211336A 1982-06-25 1982-06-25 Device for stabilising agricultural tractors - comprises pivoting arms housing drive-chains which carry wheels at their free ends Withdrawn FR2529141A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8211336A FR2529141A1 (en) 1982-06-25 1982-06-25 Device for stabilising agricultural tractors - comprises pivoting arms housing drive-chains which carry wheels at their free ends

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8211336A FR2529141A1 (en) 1982-06-25 1982-06-25 Device for stabilising agricultural tractors - comprises pivoting arms housing drive-chains which carry wheels at their free ends

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FR2529141A1 true FR2529141A1 (en) 1983-12-30

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR942471A (en) * 1946-07-25 1949-02-09 New way that gives cars better handling
GB625338A (en) * 1946-09-27 1949-06-27 Lawrence Chester Burton Improvements in or relating to vehicles
DE833566C (en) * 1946-07-25 1952-03-10 Albert De Jouette Motorized plow designed as a three-wheel vehicle with two rear drive wheels
FR1040818A (en) * 1951-07-02 1953-10-19 Vehicle whose chassis always remains horizontal
FR1138898A (en) * 1955-10-31 1957-06-20 Slope compensating device for the axles of off-road vehicles, and for all vehicles in general
FR1202600A (en) * 1957-09-19 1960-01-12 Daimler Benz Ag Device for obtaining a positive inclination in bends for motor cars having pneumatic springs
FR1261393A (en) * 1960-04-08 1961-05-19 Device for the hydraulic transmission of a rectilinear movement applicable in particular to agricultural tractors
FR1574211A (en) * 1968-06-14 1969-07-11
FR2153221A1 (en) * 1971-09-23 1973-05-04 Jamer Jacques
US4230341A (en) * 1978-09-25 1980-10-28 Caterpillar Tractor Co. Vehicle suspension system

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR942471A (en) * 1946-07-25 1949-02-09 New way that gives cars better handling
DE833566C (en) * 1946-07-25 1952-03-10 Albert De Jouette Motorized plow designed as a three-wheel vehicle with two rear drive wheels
GB625338A (en) * 1946-09-27 1949-06-27 Lawrence Chester Burton Improvements in or relating to vehicles
FR1040818A (en) * 1951-07-02 1953-10-19 Vehicle whose chassis always remains horizontal
FR1138898A (en) * 1955-10-31 1957-06-20 Slope compensating device for the axles of off-road vehicles, and for all vehicles in general
FR1202600A (en) * 1957-09-19 1960-01-12 Daimler Benz Ag Device for obtaining a positive inclination in bends for motor cars having pneumatic springs
FR1261393A (en) * 1960-04-08 1961-05-19 Device for the hydraulic transmission of a rectilinear movement applicable in particular to agricultural tractors
FR1574211A (en) * 1968-06-14 1969-07-11
FR2153221A1 (en) * 1971-09-23 1973-05-04 Jamer Jacques
US4230341A (en) * 1978-09-25 1980-10-28 Caterpillar Tractor Co. Vehicle suspension system

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