FR2670358A1 - Safety device for teeth (tines) of machines for working the ground - Google Patents

Safety device for teeth (tines) of machines for working the ground Download PDF

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Publication number
FR2670358A1
FR2670358A1 FR9015980A FR9015980A FR2670358A1 FR 2670358 A1 FR2670358 A1 FR 2670358A1 FR 9015980 A FR9015980 A FR 9015980A FR 9015980 A FR9015980 A FR 9015980A FR 2670358 A1 FR2670358 A1 FR 2670358A1
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FR
France
Prior art keywords
damping device
spring
teeth
lateral
ball joint
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
FR9015980A
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French (fr)
Inventor
Pichon Michel
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PICHON SA
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PICHON SA
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Filing date
Publication date
Application filed by PICHON SA filed Critical PICHON SA
Priority to FR9015980A priority Critical patent/FR2670358A1/en
Publication of FR2670358A1 publication Critical patent/FR2670358A1/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B61/00—Devices for, or parts of, agricultural machines or implements for preventing overstrain
    • A01B61/04—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame
    • A01B61/044—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame the connection enabling a yielding pivoting movement around a substantially horizontal and transverse axis
    • A01B61/046—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame the connection enabling a yielding pivoting movement around a substantially horizontal and transverse axis the device including an energy accumulator for restoring the tool to its working position
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B35/00—Other machines for working soil not specially adapted for working soil on which crops are growing
    • A01B35/20—Tools; Details
    • A01B35/22—Non-rotating tools; Resilient or flexible mounting of rigid tools
    • A01B35/24—Spring tools

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Machines (AREA)

Abstract

Built-in safety shock-absorbing device which can be fitted to all types of teeth (rigid, semi-rigid, flexible, vibrating flexible). The invention relates to a device making it possible to work in grounds containing rocks or stones, without the risk of breaking or deforming the teeth. It consists of a fixture (4) in which there is housed a spring (1), the tension of the spring is exerted on the support plate (10) via the towing rod (6), which tension secures the fixture (4) to the plate (10) via ball joints (2) and their seats (3). The pivoting and articulating movement of the fixture take place by means of the ball joints (2), associated with their seats (3). The ball joint (5) allows the towing rod (6) to follow the various movements of the fixture (4), the tension in the spring is adjustable by means of the screw (7), and the loads necessary for vertical retraction are greater than those for lateral retraction. The device according to the invention is particularly intended for tools for working the ground, such as: loosening, subsoiling, ploughing in stubble.

Description

- Introduetinn -
La présente invention concerne un dispositif de sécurité pour dents de machines de travail du sol (déchaumage, décompaclage, sous-solage, préparation de surface).- Introduetinn -
The present invention relates to a safety device for tines of soil working machines (stubble cultivation, decompaculation, subsoiling, surface preparation).

les mateiels agricoles actuels de plus en plus lourds tassent de plus en plus les sols, d'ou la raison pour laquelle nos ingénieurs agronomes préconisent l'utilisation d'outils à dents et particulierement des outils pour grande profondeur; soit de 50 cm à 60 cm. today's heavier and heavier agricultural materials are compacting the soil more and more, hence the reason why our agricultural engineers recommend the use of toothed tools and particularly tools for great depths; either from 50 cm to 60 cm.

Pour cela on trouve divers types de dents (rigides, semi-rigides,flexibles vibrantes ). Ces dents varient par leurs tailles, leurs formes, et ce en fonction du type de travail exigé, de la profondeur, de la nature des sols, de la présence de cailloux, de la puissance de traction disponible. For this there are various types of teeth (rigid, semi-rigid, flexible vibrating). These teeth vary in size, shape, depending on the type of work required, the depth, the nature of the soil, the presence of stones, the traction power available.

La présente invention concerne un dispositif de sécurité intégrale à grand dégagement pouvant équiper tous les types de dents existants sur la marché. The present invention relates to an integral safety device with large clearance which can be fitted to all types of teeth existing on the market.

aetat de la technique propose quelques solutions, peu satisfaisantes surtout en grande profondeur. State of the art offers some solutions, unsatisfactory especially at great depth.

En premier lieu, on retrouve sur dents rigides une sécurité par boulon de cisaillement, ou de rupture. Ce type de sécurité est trés contraignant car a'. chaque obstacle rencontré, il faut changer de boulon et de plus ne procure a la dent q'une possibilité d'effacement vertical. First, we find on rigid teeth a safety by shear bolt, or rupture. This type of security is very restrictive because a '. each obstacle encountered, it is necessary to change the bolt and moreover gives the tooth only a possibility of vertical erasure.

En deuxième lieu, on retrouve sur dents rigides et semi-rigide une sécurité par ressort de traction, de compression, ou parverin hydraulique. Mieux adaptée que la sécurité par boulon, elle ne procure également qu'une possibilité d'effacement vertical. Secondly, we find on rigid and semi-rigid teeth safety by tension spring, compression, or hydraulic parverin. Better suited than bolt security, it also only provides the possibility of vertical erasure.

Quand aux dents flexibles vibrantes, elles sont actuellement montees sans sécurité, leur souplesse tolère une certaine plage de fléxion, pas suffisanffe lorsqu' elles sont sollicitées an grande profondeur, car elles subissent alors une fatigue prématurée et deviennent très fragiles. When the flexible vibrating teeth, they are currently mounted without security, their flexibility tolerates a certain range of flexion, not sufficient when they are used at great depth, because they then undergo premature fatigue and become very fragile.

I'objet de la présente invention consiste à prévoir un dispositif de sécurité qui soit nettement mieux adapté que les moyens utilisés dans les solutions connues, et qui permet son utilisation avec une protection garantie, dans tous les sols, à profondeur maximum. The object of the present invention is to provide a safety device which is much better suited than the means used in known solutions, and which allows its use with guaranteed protection, in all soils, at maximum depth.

Ce dispositif vient donc palier à tous les inconvenients énumérés precé demments.  This device therefore overcomes all the drawbacks listed above.

- DESCRIPTION
Le descriptif selon la présente invention comprend un moyen amortisseur de sécuté, dite intégrale, car elle procure à la dent un effacement total, verticalement et une possibilité de dégagement latéral de 45 0 Ce moyen amortisseur est adapt- able à tous types de dents pour machines de travail du sol. Ce moyen amortisseur est composé d'une monture en mécano-soudé dans laquelle vient se loger un systéme de compression fait d'u n ressort ê comprimer ou d'un verin hydraulique asso cié à un accumulateur.Le ressort est soumis aux efforts de traction et d'effacement par l'intermédiaire d'une tige de traction La souplesse du système amortisseur peut s'adapter aux différentes contraintes par serrage de l'écrou de la tige cie traction, pour le modale à ressort et par la molette cie réglage du tarage de l'accumulateur pour le modèle à vérin hydraulique.- DESCRIPTION
The description according to the present invention comprises a shock absorbing means known as integral, because it provides the tooth with total erasure, vertically and a possibility of lateral release of 45 0 This shock absorbing means is adaptable to all types of teeth for machines tillage. This damping means is composed of a mechanically welded frame in which is housed a compression system made of a spring to be compressed or of a hydraulic cylinder associated with an accumulator. The spring is subjected to tensile forces and erasure by means of a traction rod The flexibility of the damping system can adapt to different constraints by tightening the nut of the traction rod, for the spring-loaded modal and by the adjustment wheel calibration of the accumulator for the hydraulic cylinder model.

Les différents mouvements de pivotement et de rotations qui permettent l'effacement de la dent face à un obstacle, se font par l'intermédiaire de rotules associées à leurs siégez. Le mouvement de pivotement vertical se fait par les deux rotules supérieures. Les mouvements de rotations latérals se font par la rotule supérieure et inférieur gauche pour la gauche et droite pour la droite.Une rotule de type agricole permet à la tige de traction où a la tige du vérin hydraulique de suivre les mouvements d'articuiat- ions. soit par pivotement ou rotation de la monture cie dents
La. tension du ressort éxercée sur la monture pivotante par la tige de traction maintient celle ci sur les siège des rotules. la pression contenue dans la chambre de compression du verin hydraulique et exercée sur la monture pivotante par l'interme- diaire de la tige du vérin, maintient cette monture sur les sièges de rotules.La différences entre les contraintes nécésaires pour le mouvement vertical et les mouvem- ents latéraux est due à la différence de leur rayon de fonctionnement respectif, car le rayon vertical est supérieur au rayon latéral, ce qui conduit à une souplesse différente selon les mouvements sollicités.The different pivoting and rotational movements that allow the erasure of the tooth in front of an obstacle, are done by means of ball joints associated with their seat. The vertical pivoting movement is made by the two upper ball joints. The lateral rotation movements are made by the upper and lower left ball joint for the left and right for the right. An agricultural type ball joint allows the traction rod or the hydraulic cylinder rod to follow the movements of articulations . either by pivoting or rotating the tooth frame
The tension of the spring exerted on the swivel mount by the pull rod maintains the latter on the seats of the ball joints. the pressure contained in the compression chamber of the hydraulic cylinder and exerted on the pivoting mount by means of the cylinder rod, keeps this mount on the ball joint seats. The differences between the constraints necessary for vertical movement and the lateral movements is due to the difference in their respective operating radius, since the vertical radius is greater than the lateral radius, which leads to different flexibility depending on the movements requested.

Les caractéristiques de l'invention mentionnées ci--dessus ainsi que d'autres, apparaitront plus clairement à la lecture de la description suivante d'un exemple de réalisation, la dite description étant faite en relation avec les dessins joints parmi lesquels -- la figura 1 est une vue en coupe du dispositif amortisseur selon l'invention -- les figures 2a et 2b présentent les mouvements d'effacement vertical et latéral -- les figures 3 et 3 bis présentent le mouvement de fonctionnement vertical du dispositif amortisseur. The characteristics of the invention mentioned above as well as others, will appear more clearly on reading the following description of an exemplary embodiment, the said description being made in relation to the accompanying drawings among which - the Figure 1 is a sectional view of the damping device according to the invention - Figures 2a and 2b show the vertical and lateral erasure movements - Figures 3 and 3a show the vertical operating movement of the damping device.

-- les figures 4 et 4 bis présentent les mouvements de fonctionnement latéral du dispositif à différents type de dents.- Figures 4 and 4a show the lateral operating movements of the device to different types of teeth.

-- la figure 5 présente une adaptation du dispositif à plusieurs types de dents
La figure 1 qui présente l'ensemble du dispositif comprend: une monture an mécano soudé (4) adaptée sur une platine support monture (10) cette platine est fixée sur le tube (11) du chassis. par deux étriers filetées (12). A l'intérieur de cette monture mecano-soudee est logé un ressort de compression (1) dont la.- Figure 5 shows an adaptation of the device to several types of teeth
Figure 1 which shows the entire device comprises: a mechanically welded frame (4) adapted on a frame support plate (10) this plate is fixed to the tube (11) of the chassis. by two threaded stirrups (12). Inside this mechanical welded mount is housed a compression spring (1), the.

tension peut ètre modulée par l'ecrou de serrage (7) de la tige de traction (6).tension can be modulated by the tightening nut (7) of the draw rod (6).

Ia tension du ressort (1) est transmise a la platina support (10) par l'intermédiaire de la tige de traction (6). les deux pièces: monture (1) et platine support (10) demeurent donc solidaires et leur jonction est faite par les rotules (2) et les sièges de rotules (3). Quand l'extrémité cie la dent (9) rencontre un obstacle qui exige un effacement par pivotement vertical, la monture s'articule sur les deux rotules sup érieures (2) dans leurs sieges (3). la tension du ressort (1) augmente selon que le rayon d'articulation nécessaire est important. Ia spring tension (1) is transmitted to the support plate (10) via the pull rod (6). the two parts: frame (1) and support plate (10) therefore remain integral and their junction is made by the ball joints (2) and the ball joint seats (3). When the end of the tooth (9) encounters an obstacle which requires erasure by vertical pivoting, the frame is articulated on the two upper ball joints (2) in their seats (3). the tension of the spring (1) increases depending on whether the necessary radius of articulation is large.

quand l'extremité de la dent (9) rencontra un obstacle qui exige un efface nient par rotation latérale droite ou gauche (fig 2b) la monture (4) s'srticule alors sur la rotule supérieure et inférieure droite pour un effacement cie la dent à droite et la rotule (2) supérieure et inférieure gauche pour un effacement à gauche. when the end of the tooth (9) encounters an obstacle which requires an erasure by right or left lateral rotation (fig 2b) the frame (4) is then articulated on the upper and lower right ball joint to erase the tooth on the right and the upper and lower left ball joint (2) for erasing on the left.

la tension nécessaire pour un effacenient vertical (fig3) est supérieur à celle d'un effacement latéral fig.(4). La différence de tension nécessaire pour un effacement vertical (fig 3) par rapport à un effacement latéral (fig4) vient de la différence de leur rayons de fonctionnement respectif (fig 3bis,fig 4bis). the tension required for a vertical erasure (fig3) is higher than that for a lateral erasure fig. (4). The difference in voltage required for vertical erasure (fig 3) compared to lateral erasure (fig4) comes from the difference in their respective operating radii (fig 3bis, fig 4bis).

dans la cas d'un montage ce monture avec vérin hydraulique et accumulateur,le principe de fonctionnement demeure identique a celui avec un ressort précédement décrit. in the case of mounting this frame with hydraulic cylinder and accumulator, the operating principle remains identical to that with a spring previously described.

la figura 5 vous montre deux types de dents différentes adaptées a cette monture à sécurité intégrale objet de la présente invention.  FIG. 5 shows you two different types of teeth adapted to this integral security frame which is the subject of the present invention.

Claims (6)

- REVENDICATIONS -- CLAIMS - 1) Dispositif amortisseur de sécurité intecirale adaptable à tous types de dents pour machines de travail du sol caractérisé en ce qu'il comprend: une monture de dent mécano soudé (4) maintenue sur une platine support (10) par le moyen de compression (1) : et d'articulations; nécessaire au fonclionnement. composées de rotules (2) quij prennent sppui sur des sièges ouverts lsstéraux (3) afin de permetlre le pivotement vertical ainsi que les mouvements d'articulations latéraux. Le pivot amant du moyen de compression proprement dit étant assuré par une rotule de type agricole (5). 1) Inteciral safety damping device adaptable to all types of teeth for soil working machines, characterized in that it comprises: a mechanically welded tooth mount (4) held on a support plate (10) by the compression means ( 1): and joints; necessary for operation. composed of ball joints (2) which are supported on open lateral seats (3) in order to allow the vertical pivoting as well as the movements of lateral articulations. The lover pivot of the compression means proper being provided by an agricultural type ball joint (5). 2) Dispositif amortisseur selon la revendication 1) caractérisé en ce que le troyen de compression (1) est un ressort à comprimer, une tige de traction filetée (6) assurant la tension souhaitée du ressort grace à un écrou de serrage (7). 2) Damping device according to claim 1) characterized in that the compression trojan (1) is a spring to be compressed, a threaded tension rod (6) ensuring the desired tension of the spring thanks to a tightening nut (7). 3) Dispositif amortisseur selon la revendication 1) caractérisé en ce que le moyen de compression (i) est - un verin hydraulique associé à un accumulateur. une molette de tarage sur cet accumulateur assurant la tension souhaitée.3) Damping device according to claim 1) characterized in that the compression means (i) is - a hydraulic cylinder associated with an accumulator. a setting wheel on this accumulator ensuring the desired tension. la rotule du type agricole (5) venant alorss se mettre sur la tige du verin hydraulique.the agricultural type ball joint (5) then comes to be placed on the rod of the hydraulic cylinder. 4) dispositif amortisseur selon l'uneou l'autre des revendications précédentes caractérisé en ce que les mouvements d'articulstionss se font par des rolules (2) pivotant sur leurs sièges (3). 4) damping device according to one or the other of the preceding claims, characterized in that the articulation movements are made by rolls (2) pivoting on their seats (3). 5) dispositif amortisseur selon l'une ou l'autre des revendications précédentes caractérisé en ce que le mouvement de rotation vertical se fait par les deux rotules supérieures. le mouvement de rotation latéral droite se fait par la rotule supérieure et inférieur droite, le mouvement de rotation latéral gauche se fsit par la rotule supéri aura et inférieur gauche.5) damping device according to either of the preceding claims, characterized in that the vertical rotational movement is effected by the two upper ball joints. the right lateral rotation movement is done by the upper and lower right ball joint, the left lateral rotation movement is done by the upper and lower left ball joint. 6) dispositif amortisseur selon l'une ou l'autre des revendications précédentes caractérisé en ce que le rayon de fonctionnement vertical est supérieur aux rayons de fonctionnement latéral. 6) damping device according to either of the preceding claims, characterized in that the vertical operating radius is greater than the lateral operating radii.
FR9015980A 1990-12-17 1990-12-17 Safety device for teeth (tines) of machines for working the ground Pending FR2670358A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9015980A FR2670358A1 (en) 1990-12-17 1990-12-17 Safety device for teeth (tines) of machines for working the ground

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9015980A FR2670358A1 (en) 1990-12-17 1990-12-17 Safety device for teeth (tines) of machines for working the ground

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994016546A1 (en) * 1993-01-19 1994-08-04 Kverneland Klepp As An overload protection mechanism for a tubular plough beam
EP1461987A1 (en) * 2003-03-25 2004-09-29 Amazonen-Werke H. Dreyer GmbH & Co. KG Overload protection for soil working implements
EP1464213A2 (en) * 2003-03-25 2004-10-06 Amazonen-Werke H. Dreyer GmbH & Co. KG Overload protection device für a soil working implement
EP1477051A2 (en) * 2003-03-25 2004-11-17 Amazonen-Werke H. Dreyer GmbH & Co. KG Overload protection device for a soil working implement
EP2332400A1 (en) * 2009-12-10 2011-06-15 Simba International Ltd Tine mounting arrangement
RU2661370C1 (en) * 2017-07-17 2018-07-16 Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный аграрный университет имени И.Т. Трубилина" Device for presowing soil treatment
WO2018191767A1 (en) * 2017-04-18 2018-10-25 Schoels Juergen Soil-working device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1352644A (en) * 1972-02-01 1974-05-08 Kvernelands Fab As Plough beam with a plough bottom
FR2386238A1 (en) * 1977-04-06 1978-11-03 Gregoire & Cie Besson Automatic trip beam plough - has hollow pivoted shaft through which extends linkage connected to return leaf spring
GB2045041A (en) * 1979-03-30 1980-10-29 Dowdeswell C V R Overload devices on ploughs
GB2053635A (en) * 1979-06-14 1981-02-11 Dowdeswell C V R Yieldable plough body mounting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1352644A (en) * 1972-02-01 1974-05-08 Kvernelands Fab As Plough beam with a plough bottom
FR2386238A1 (en) * 1977-04-06 1978-11-03 Gregoire & Cie Besson Automatic trip beam plough - has hollow pivoted shaft through which extends linkage connected to return leaf spring
GB2045041A (en) * 1979-03-30 1980-10-29 Dowdeswell C V R Overload devices on ploughs
GB2053635A (en) * 1979-06-14 1981-02-11 Dowdeswell C V R Yieldable plough body mounting

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994016546A1 (en) * 1993-01-19 1994-08-04 Kverneland Klepp As An overload protection mechanism for a tubular plough beam
EP1461987A1 (en) * 2003-03-25 2004-09-29 Amazonen-Werke H. Dreyer GmbH & Co. KG Overload protection for soil working implements
EP1464213A2 (en) * 2003-03-25 2004-10-06 Amazonen-Werke H. Dreyer GmbH & Co. KG Overload protection device für a soil working implement
EP1477051A2 (en) * 2003-03-25 2004-11-17 Amazonen-Werke H. Dreyer GmbH & Co. KG Overload protection device for a soil working implement
EP1464213A3 (en) * 2003-03-25 2006-12-20 Amazonen-Werke H. Dreyer GmbH & Co. KG Overload protection device für a soil working implement
EP1477051A3 (en) * 2003-03-25 2006-12-20 Amazonen-Werke H. Dreyer GmbH & Co. KG Overload protection device for a soil working implement
EP2332400A1 (en) * 2009-12-10 2011-06-15 Simba International Ltd Tine mounting arrangement
WO2018191767A1 (en) * 2017-04-18 2018-10-25 Schoels Juergen Soil-working device
RU2661370C1 (en) * 2017-07-17 2018-07-16 Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный аграрный университет имени И.Т. Трубилина" Device for presowing soil treatment

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