ES2638542B1 - Liftable work platform as an implement for agricultural tractors - Google Patents
Liftable work platform as an implement for agricultural tractors Download PDFInfo
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- ES2638542B1 ES2638542B1 ES201630499A ES201630499A ES2638542B1 ES 2638542 B1 ES2638542 B1 ES 2638542B1 ES 201630499 A ES201630499 A ES 201630499A ES 201630499 A ES201630499 A ES 201630499A ES 2638542 B1 ES2638542 B1 ES 2638542B1
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- work platform
- tractor
- oil
- implement
- oleohydraulic
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D46/00—Picking of fruits, vegetables, hops, or the like; Devices for shaking trees or shrubs
- A01D46/20—Platforms with lifting and lowering devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/044—Working platforms suspended from booms
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Environmental Sciences (AREA)
- Agricultural Machines (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Abstract
Plataforma de trabajo elevable como apero acoplable a tripuntal de tractor agrícola (1) constituido por un mecanismo articulado que dispone en su elemento terminal de una plataforma elevable (2) con forma de jaula para elevar personas y realizar tareas agrícolas en altura con seguridad.#La plataforma elevable (2) del apero es autonivelante y sus actuadores son cilindros oleohidráulicos de doble efecto, cuyo aceite es suministrado desde una centralita independiente mediante bomba accionada por motor eléctrico que se alimenta de la batería del tractor.Liftable work platform as an implement that can be coupled to an agricultural tractor tripuntal (1) constituted by an articulated mechanism that has a cage-shaped platform (2) in its terminal element to lift people and perform agricultural tasks at height safely. The lifting platform (2) of the implement is self-leveling and its actuators are double-acting oleohydraulic cylinders, the oil of which is supplied from an independent control unit by means of an electric motor driven pump that feeds on the tractor battery.
Description
PLATAFORMA DE TRABAJO ELEVABLE COMO APERO PARA TRACTORES AGRICOLASELEVABLE WORK PLATFORM AS A STEEL FOR AGRICULTURAL TRACTORS
5 DESCRIPCION5 DESCRIPTION
OBJETO DE LA INVENCIONOBJECT OF THE INVENTION
La presente invencion afecta al sector de la agricultura y se refiere a una plataforma de trabajo elevable como apero, acoplable a tripuntal delantero o 10 trasero de un tractor agncola, que permite al operario poder realizar labores en altura de una forma segura. Tales trabajos agncolas pueden ser diversos, como la poda de arboles frutales altos, la recogida de la fruta de dichos frutales, asf como otras tareas relacionadas con el mantenimiento de viviendas rurales limpieza de canalones, pintado de fachadas de naves agncolas, etc... labores todas ellas que 15 no estan al alcance de una persona erguida en el suelo.The present invention affects the agriculture sector and refers to a work platform that can be lifted as an implement, attachable to the front or rear triple-side of a farm tractor, which allows the operator to perform work at height in a safe way. Such agricultural works can be diverse, such as the pruning of tall fruit trees, the collection of fruit from said fruit trees, as well as other tasks related to the maintenance of rural housing cleaning of gutters, painting of facades of farm buildings, etc ... You work all of them that 15 are not within reach of a person standing on the ground.
ESTADO DE LA TECNICASTATE OF THE TECHNIQUE
La plataforma elevable objeto de la invencion tiene como ventaja que no es autopropulsada sino que se tratana como un apero mas, de los multiples aperos 20 de labranza que se utilizan en la agricultura y en la ganadena para desarrollar sus actividades y que todas estan basadas en la maquina principal que las transporta y acciona sus mecanismos, que es el tractor agncola.The elevating platform object of the invention has the advantage that it is not self-propelled but that it is treated as one more implement, of the multiple farm implements 20 used in agriculture and livestock to develop their activities and that all are based on the main machine that transports them and drives their mechanisms, which is the agricultural tractor.
En la actualidad, la realizacion de trabajos de altura en sectores agncolas tales como el podado e injertado de arboles, recogida de fruta de arboles frutales entre 25 otros, necesitan la elevacion de personas para la correcta ejecucion de los trabajos. Actualmente estos trabajos, se realizan con palas cargadoras, colocacion de escaleras, andamios y mas elementos que puede suponer una accion extremadamente peligrosa por el riesgo de cafda de las personas que lo realizan.At present, the realization of work of height in agricultural sectors such as the pruning and grafting of trees, collection of fruit from fruit trees among 25 others, need the elevation of people for the correct execution of the works. Currently these works are carried out with loaders, placement of stairs, scaffolding and more elements that can be an extremely dangerous action due to the risk of coffee of the people who perform it.
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No existe un util polivalente explfcito pensado para las distintas tareas en altura en el mundo rural y agrfcola-ganadero. Se recurre a escaleras elongables o articuladas para alcanzar las distintas cotas del arbolado o de las fachadas, o bien a la colocacion de andamiajes lo cual resulta totalmente inconveniente para hacer tareas que requieren poco tiempo de estancia entre cada posicionamiento, lo cual induce al operario a emplear otros aperos que permiten alcanzar esas alturas, pero no siendo nada recomendables desde el punto de vista de la seguridad en el trabajo. Tambien son conocidos el uso de vehfculos provistos de pluma elevadora ES2217528 y vehfculos con pala elevadora DE3228779 para la realizacion de las tareas descritas anteriormente.There is no explicit multipurpose tool designed for different tasks at height in the rural and agricultural-livestock world. Elongable or articulated stairs are used to reach the different levels of the woodland or of the facades, or to the placement of scaffolding which is totally inconvenient to do tasks that require little time of stay between each positioning, which induces the operator to use other tools that allow reaching these heights, but not being recommended from the point of view of safety at work. Also known are the use of vehicles equipped with an ES2217528 lifting boom and vehicles with a DE3228779 lifting blade for carrying out the tasks described above.
En el estado de la tecnica mas proximo encontramos la Patente ES2154089 que describe una cabina acoplable al tripuntal de tractor agrfcola, provista de un movimiento telescopico vertical. Nuestra invencion solventa el problema de tener unicamente un movimiento telescopico vertical o tambien definido como un unico grado de libertad, de forma que la plataforma elevable presenta cuatro grados de libertar abarcando asf un gran volumen de trabajo longitudinal, transversal y en altura.In the closest state of the art, we find Patent ES2154089, which describes a cabin that can be coupled to the agricultural tractor tripuntal, provided with a vertical telescopic movement. Our invention solves the problem of having only a vertical telescopic movement or also defined as a single degree of freedom, so that the elevating platform has four degrees of freedom thus covering a large volume of longitudinal, transverse and height work.
Otra de las ventajas de nuestra invencion con respecto al estado de la tecnica es que puede nutrirse de la energfa electrica procedente de la baterfa del tractor, funcionando con el motor del tractor parado, permitiendo la eliminacion de ruidos y ahorro de combustible.Another advantage of our invention with respect to the state of the art is that it can feed on the electric energy coming from the tractor battery, operating with the tractor engine stopped, allowing noise elimination and fuel savings.
DESCRIPCION DE LA INVENCIONDESCRIPTION OF THE INVENTION
La presente invencion queda establecida y caracterizada en las reivindicaciones independientes, mientras que las reivindicaciones dependientes describen otras caracterfsticas de la misma.The present invention is established and characterized in the independent claims, while the dependent claims describe other features thereof.
La presente invencion se refiere a una plataforma de trabajo elevable como apero agrfcola conectable al tripuntal delantero o trasero de los tractores agrfcolas. ElThe present invention relates to a work platform that can be lifted as an agricultural implement that can be connected to the front or rear tripuntal of agricultural tractors. He
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citado apero consta de un mecanismo de dos brazos articulados (11) y (12) unidos entre sf por sus extremos mediante articulaciones de rotacion, de forma que uno de los brazos (11) se une a la pieza soporte (8) en forma de L mediante articulacion de eje de rotacion horizontal y la pieza soporte (8) en L, se une mediante articulacion de rotacion de eje vertical a modo de bisagra a la base o bastidor (3) de la maquina que tiene forma de triangulo y que es solidaria al tripuntal del tractor.said implement consists of a mechanism of two articulated arms (11) and (12) joined together by their ends by means of rotation joints, so that one of the arms (11) joins the support piece (8) in the form of L by means of articulation of horizontal rotation axis and the support piece (8) in L, joins by means of articulation of rotation of vertical axis as a hinge to the base or frame (3) of the machine that has a triangle shape and that is in solidarity with the tractor triple.
El brazo mas lejano (12) tiene en su extremo distal una plataforma de trabajo (2) de base antideslizante con barras de proteccion tipo jaula, unida a el mediante una articulacion de eje de rotacion horizontal. El accionamiento de ambos brazos (11) y (12) es mediante cilindros oleohidraulicos de doble efecto (9) y (10) respectivamente. La plataforma de trabajo (2) tambien puede cambiar su orientacion respecto del brazo (12) al que esta unida mediante otro cilindro oleohidraulico (13) que permite cambiar la orientacion de la plataforma de trabajo (2) en su plano vertical. Adicionalmente, el conjunto de este mecanismo plano de dos brazos (11) y (12) con la plataforma de trabajo (2), dispone de otro cilindro oleohidraulico (16) con sus extremos anclados al soporte (8) en forma de L por un lado y al bastidor (3) con forma triangular por el otro, de forma que permite cambiar la orientacion del plano de trabajo 50° a ambos costados izquierda y derecha respecto del plano longitudinal medio del tractor.The furthest arm (12) has at its distal end a work platform (2) with a non-slip base with cage-like protection bars, attached to it by means of a horizontal rotation axis joint. The operation of both arms (11) and (12) is by double-acting oleohydraulic cylinders (9) and (10) respectively. The work platform (2) can also change its orientation with respect to the arm (12) to which it is joined by another oleohydraulic cylinder (13) that allows changing the orientation of the work platform (2) in its vertical plane. Additionally, the assembly of this two-arm flat mechanism (11) and (12) with the work platform (2), has another oleohydraulic cylinder (16) with its ends anchored to the L-shaped support (8) by a side and to the frame (3) with a triangular shape on the other, so that it can change the orientation of the 50 ° work plane on both left and right sides with respect to the middle longitudinal plane of the tractor.
El accionamiento de todos los cilindros oleohidraulicos se realiza mediante las palancas de valvulas distribuidoras ubicadas en la caja de mandos (14) sita en plataforma de trabajo (2). Cuando el operario deja el tractor (1) estacionado y frenado, con el motor parado, sube a la plataforma desplazando hacia arriba la barra (15) y mediante una llave ubicada en la caja de mandos (14) desactiva el sistema de arranque del tractor, asf como desactiva el motor en el caso de que este en funcionamiento. La llave ademas de inutilizar el sistema de arranque del motor del tractor permite conectar una centralita oleohidraulica ubicada en la bandeja (7), con la batena del tractor, pudiendo el operario una vez activada la centralita mediante la llave, actuar con las cuatro palancas que gobiernan lasThe operation of all oil-hydraulic cylinders is carried out by means of the distribution valve levers located in the control box (14) located on the work platform (2). When the operator leaves the tractor (1) parked and braked, with the engine stopped, it goes up to the platform by moving up the bar (15) and using a key located in the control box (14) deactivates the tractor's starting system , as well as deactivates the engine if it is running. The key, in addition to rendering the tractor engine start system unusable, allows the connection of an oil-hydraulic control unit located in the tray (7), with the tractor base, and the operator, once the control unit is activated by means of the key, can operate with the four levers govern the
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cuatro valvulas distribuidoras ubicadas en la caja de mandos (14) y que accionan a los cuatro cilindros oleohidraulicos antes comentados.four distribution valves located in the control box (14) and which actuate the four oleohydraulic cylinders mentioned above.
La centralita oleohidraulica dispone de un pequeno deposito de aceite, y de un motor electrico de corriente continua que acciona una bomba oleohidraulica asf como de una valvula de seguridad ajustable.The oil-hydraulic control unit has a small oil tank, and a direct current electric motor that drives an oil-hydraulic pump as well as an adjustable safety valve.
La plataforma de trabajo (2) dispone de un inclinometro, que puede ser de tipo electrico que activa una alarma acustica estridente que avisa cuando la ubicacion de la plataforma de trabajo (2) se aproxima a una situacion de inestabilidad o posible vuelco del conjunto. Cuando esta advertencia ocurre no se puede incrementar la separacion de la plataforma de trabajo (2) respecto de su bastidorThe work platform (2) has an inclinometer, which can be of the electric type that activates a strident acoustic alarm that warns when the location of the work platform (2) approaches a situation of instability or possible overturning of the assembly. When this warning occurs, the separation of the work platform (2) from its frame cannot be increased
(3).(3).
La plataforma de trabajo (2) dispone de un sensor de nivel, que puede ser de tipo electrico, situado longitudinalmente en la base de la plataforma de trabajo (2) que actua, sobre el suministro de aceite al cilindro oleohidraulico (13) de forma que mantenga la verticalidad de la jaula de la plataforma (2) de forma automatica, cada vez que se accionan alguno de los cilindros oleohidraulicos (9) y (10) de los brazos (11) y (12).The work platform (2) has a level sensor, which can be of the electric type, located longitudinally at the base of the working platform (2) that acts, on the oil supply to the oil-hydraulic cylinder (13) so to maintain the verticality of the platform cage (2) automatically, each time one of the oleohydraulic cylinders (9) and (10) of the arms (11) and (12) is operated.
El apero, dispone de una segunda alarma o avisador acustico a modo de zumbador, que emite un sonido distinto al anterior advirtiendo que la baterfa del tractor (1) se encuentra con poco nivel de carga y que debe recargarse.The implement has a second alarm or acoustic warning as a buzzer, which emits a sound different from the previous warning that the battery of the tractor (1) is low level of charge and must be recharged.
DESCRIPCION DE LAS FIGURASDESCRIPTION OF THE FIGURES
Se complementa la descripcion de la invencion, con un conjunto de figuras ilustrativas del ejemplo preferente y nunca limitativo de la invencion.The description of the invention is complemented, with a set of illustrative figures of the preferred and never limiting example of the invention.
La figura 1 representa una vista del apero en situacion de desconexion del tractor (1) o en situacion de aparcamiento, con todo el mecanismo plegado, apoyado en el suelo sobre sus patas de estacionamiento (6) regulables en altura y sobre la base de la plataforma de trabajo (2) de base antideslizante. En esta figuraFigure 1 represents a view of the implement in situation of disconnection of the tractor (1) or in parking situation, with the entire mechanism folded, resting on the ground on its height-adjustable parking legs (6) and on the base of the Work platform (2) with non-slip base. In this figure
podemos observar todos los componentes principales del apero en situacion de plegado total, con el cilindro oleohidraulico (9) del brazo (11) y el cilindro oleohidraulico (13) de la plataforma de trabajo (2), retrafdos totalmente y el 5 cilindro oleohidraulico (10) del brazo (12) totalmente extendido estando el cilindro oleohidraulico (16) de orientacion del plano de trabajo a la mitad de su recorrido.we can observe all the main components of the implement in a situation of total folding, with the oleohydraulic cylinder (9) of the arm (11) and the oleohydraulic cylinder (13) of the work platform (2), fully retracted and the oleohydraulic cylinder ( 10) of the arm (12) fully extended, the oil-hydraulic cylinder (16) for orientation of the work plane halfway.
La figura 2 muestra el apero de trabajo enganchado a tripuntal trasero de un tractor agncola (1) en situacion de transporte, con el mecanismo plegado. En esta 10 figura se puede observar la forma de transporte del apero aunque la elevacion de del apero respecto del suelo puede ser mayor o menor a voluntad del conductor del tractor mediante el sistema elevador del tripuntal, que regula la altura de transporte del apero.Figure 2 shows the work implement attached to the rear tripuntal of an agricultural tractor (1) in transport situation, with the mechanism folded. In this figure the form of transport of the implement can be observed although the elevation of the implement with respect to the ground can be greater or smaller at the will of the tractor driver by means of the tripuntal lift system, which regulates the height of transport of the implement.
15 La figura 3 muestra el bastidor del apero (3) con forma de triangulo y la forma de enganche al tripuntal del tractor agncola. En ella podemos observar la barra de enganche (4) que se sujeta en los brazos del sistema de elevacion del tractor y que debe ser introducida en ambas ranuras verticales (17) sitas en la parte delantera del bastidor (3) y posteriormente asegurada con los bulones (18) y 20 pasadores de seguridad (19).15 Figure 3 shows the frame of the implement (3) in the shape of a triangle and the shape of a hitch to the tripuntal of the agricultural tractor. In it we can see the hitch bar (4) that is held in the arms of the tractor lift system and that must be introduced in both vertical grooves (17) located at the front of the frame (3) and then secured with the bolts (18) and 20 safety pins (19).
La figura 4 muestra el apero desplegado con la plataforma de trabajo (2) en situacion de maxima altura, con orientacion vertical y su base horizontal.Figure 4 shows the implement deployed with the work platform (2) in a maximum height situation, with vertical orientation and its horizontal base.
25 La figura 5 muestra el apero desplegado con la plataforma (2) en situacion de maximo alcance horizontal, manteniendo la orientacion de dicha plataforma (2) vertical con su base horizontal.25 Figure 5 shows the implement deployed with the platform (2) in a situation of maximum horizontal reach, maintaining the orientation of said vertical platform (2) with its horizontal base.
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DESCRIPCION DETALLADA DE LA INVENCIONDETAILED DESCRIPTION OF THE INVENTION
A la vista de lo anteriormente enunciado, la invencion se refiere a una plataforma de trabajo elevable como apero conectable a tripuntal delantero o trasero de un tractor agrfcola (1) que comprende:In view of the foregoing, the invention relates to an elevating work platform as an attachment that can be connected to the front or rear tripuntal of an agricultural tractor (1) comprising:
a) Un bastidor rfgido (3) con forma de triangulo con un sistema de enganche de tres puntos de anclaje al tripuntal del tractor (1). Dos puntos lo constituyen el amarre a los brazos del tractor mediante la barra de enganche (4) y el tercer punto, mediante un brazo extensible con rotulas en ambos extremos, siendo uno de sus extremos enganchado al anclaje (5) del bastidor, y el otro extremo al tercer punto del tractor.a) A rigid frame (3) in the shape of a triangle with a three point anchoring system to the tractor tripuntal (1). Two points constitute the mooring to the arms of the tractor by means of the hitch bar (4) and the third point, by means of an extendable arm with markers on both ends, one of its ends being hooked to the anchor (5) of the frame, and the other end to the third point of the tractor.
b) Un elemento soporte (8) en forma de L que va unido al bastidor (3) mediante una articulacion de rotacion de eje vertical.b) An L-shaped support element (8) that is attached to the frame (3) by means of a vertical axis rotation joint.
c) Un mecanismo articulado de dos brazos (11) y (12) estando el brazo proximal (11) unido al soporte (8) mediante articulacion de rotacion de eje horizontal y el brazo distal (12) unido al brazo proximal (11) mediante articulacion de eje horizontal.c) An articulated mechanism with two arms (11) and (12) the proximal arm (11) being attached to the support (8) by means of horizontal axis rotation articulation and the distal arm (12) attached to the proximal arm (11) by horizontal axis articulation.
d) Una plataforma de trabajo (2) elevadora, con barras de proteccion tipo jaula que va unida al brazo distal (12) mediante articulacion de rotacion de eje horizontal. Una de las barras (15) es flotante permitiendo su elevacion para el acceso de las personas.d) A lifting work platform (2), with cage-like protection bars that are attached to the distal arm (12) by means of horizontal axis rotation articulation. One of the bars (15) is floating allowing its elevation for the access of people.
e) Una bandeja (7) sita en el bastidor (3) donde se ubica la centralita oleohidraulica de accionamiento electrico y que suministra caudal de aceite a los cilindros oleohidraulicos (9) y (10) de los brazos (11) y (12), al cilindro oleohidraulico (13) de la plataforma (2) y al cilindro oleohidraulico (16) que cambia la orientacion vertical de la pieza soporte (8) en L.e) A tray (7) located in the frame (3) where the electrically operated oil-hydraulic control unit is located and which supplies oil flow to the oil-hydraulic cylinders (9) and (10) of the arms (11) and (12) , to the oleohydraulic cylinder (13) of the platform (2) and the oleohydraulic cylinder (16) that changes the vertical orientation of the support part (8) in L.
f) Una caja de mandos (14) sita en la plataforma de trabajo (2) donde se ubican los mandos con sus valvulas distribuidoras de los cilindros oleohidraulicos (9) (10) (13) y (16), asf como la llave de contacto que activa el motor electrico que mueve la bomba oleohidraulica a la vez quef) A control box (14) located on the work platform (2) where the controls are located with their oil hydraulic cylinder distribution valves (9) (10) (13) and (16), as well as the key contact that activates the electric motor that moves the hydraulic pump while
desactiva el circuito de arranque del tractor. Tambien se dispone del interruptor de emergencia que desconecta todo el sistema electrico de la maquina de la batena del tractorDeactivate the starting circuit of the tractor. There is also an emergency switch that disconnects the entire electrical system from the tractor's machine
5 g) Un inclinometro, que puede ser de tipo electrico ubicado en cualquier lugar de la plataforma de trabajo (2) orientado verticalmente.5 g) An inclinometer, which can be of the electric type located anywhere on the work platform (2) oriented vertically.
h) Un sensor de nivel que puede ser de tipo electrico ubicado en la base de la plataforma de trabajo (2) con orientacion longitudinal a esta.h) A level sensor that can be of the electric type located at the base of the work platform (2) with longitudinal orientation to it.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201630499A ES2638542B1 (en) | 2016-04-20 | 2016-04-20 | Liftable work platform as an implement for agricultural tractors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201630499A ES2638542B1 (en) | 2016-04-20 | 2016-04-20 | Liftable work platform as an implement for agricultural tractors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2638542A1 ES2638542A1 (en) | 2017-10-23 |
| ES2638542B1 true ES2638542B1 (en) | 2018-08-01 |
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ID=60083010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES201630499A Active ES2638542B1 (en) | 2016-04-20 | 2016-04-20 | Liftable work platform as an implement for agricultural tractors |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2638542B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108401681B (en) * | 2018-03-09 | 2020-09-08 | 重庆大学 | Auxiliary artificial fruit picking device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3534832A (en) * | 1968-05-08 | 1970-10-20 | Leonard Nesary | Aerial platform structure |
| US4314622A (en) * | 1980-03-26 | 1982-02-09 | Lindquist William W | Extension boom for tractors having back hoe attachments |
| GB2128555B (en) * | 1982-10-14 | 1987-04-15 | Simon Eng Dudley Ltd | A vehicle having a demountable work platform |
| US5551527A (en) * | 1994-10-03 | 1996-09-03 | Luscombe; Terry | Lift device for a three point hitch |
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| Publication number | Publication date |
|---|---|
| ES2638542A1 (en) | 2017-10-23 |
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