EP0661460B1 - Dispositif de régulation hydraulique de la rotation de deux arbres d'entraínement, notamment - Google Patents
Dispositif de régulation hydraulique de la rotation de deux arbres d'entraínement, notamment Download PDFInfo
- Publication number
- EP0661460B1 EP0661460B1 EP94403000A EP94403000A EP0661460B1 EP 0661460 B1 EP0661460 B1 EP 0661460B1 EP 94403000 A EP94403000 A EP 94403000A EP 94403000 A EP94403000 A EP 94403000A EP 0661460 B1 EP0661460 B1 EP 0661460B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- motor
- hydraulic
- terminal
- distributor
- hydraulic motor
- 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.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
Definitions
- the present invention relates to a hydraulic regulation device according to the preamble of claim 1, in particular used in materials livestock, such as silage cutters, straw blowers, mixers or other.
- a hydraulic regulation device according to the preamble of claim 1, in particular used in materials livestock, such as silage cutters, straw blowers, mixers or other.
- Such a device is for example known from document AT-A357458.
- These machines generally have a box on which is articulated a claw intended to allow both the loading of the body by its rear part and closing it once it’s loaded, a moving bottom for moving the products contained in the body towards the front of it and a device for untangling of the products contained in the box which for example in the form of silage, bales round or parallelepiped, straw, hay or analogues.
- the untangling devices used in such machines are for example devices for untangling with rotary cylinders provided with untangling fingers, untangling devices with conveyors with drive elements endless fitted with drive fingers strands of product to be dispensed, and untangling devices with turbines with disentangling fingers and blades.
- the movable floor is put in motion by a rotary shaft driven by a gear motor hydraulic.
- the untangling device is driven by a other hydraulic motor.
- the two hydraulic motors are supplied with hydraulic fluid from a tractor pump or well from a pump on board the machine and controlled by the PTO of a tractor.
- the untangling device works continuously to deliver the desiled and unraveled product with a maximum flow.
- the invention aims to create a device for regulation that ensures operation coordinated of the movable floor and the disentangling device and for dispensing a machine of the aforementioned type.
- the machine shown in Figure 1 is by example a silage cutter. It includes a box 1 equipped a gripper 2 for gripping and loading in the box of products in the form of cylindrical bales, parallelepipedic or other.
- Claw 2 is articulated on the body by arms 3 actuated by cylinders 4.
- This claw also serves as a rear door for the cash register.
- a movable bottom 5 of known type which moves longitudinally to bring the silage to the front part of the body.
- the machine further includes a device for disentangling and distribution which, according to the invention, comprises an endless conveyor 6 comprising elements endless drive such as chains 7 provided with fingers 8 for driving the strands of the silage.
- a device for disentangling and distribution which, according to the invention, comprises an endless conveyor 6 comprising elements endless drive such as chains 7 provided with fingers 8 for driving the strands of the silage.
- Such a conveyor is for example described in French patent n ° 84 07 064 filed on May 7, 1984 by the Applicant and whose strand drive fingers are arranged at regular intervals on bars cross-links fixed to the endless drive chains.
- the conveyor 6 comprises a sheet metal fairing 9.
- the endless conveyor 6 is arranged so tilted upwards from the movable floor 5.
- a turbine 10 for suction and ejection of products untangled by conveyor 6.
- This turbine is disposed in a volute 11 provided at the end of the body 1 opposite the claw 2 and driven by a shaft 12 intended to be connected to a PTO of a tractor not shown, via a gearbox 13 provided with a gear shift lever 14.
- the conveyor 6, and in particular its fairing 9 also participates in guiding the air sucked out of the body by the turbine 10 according to the arrows shown in Figure 1.
- the air sucked out of the body essentially passes between the movable bottom 5 and the bottom of the conveyor 6 and between the conveyor 6 and the hood 15.
- the disentangling device 6 and the movable bottom 5 are respectively driven by hydraulic motors 20 and 18 supplied with hydraulic fluid from a single source constituted for example by the pump of a tractor whose PTO is intended to drive the shaft 12 (not shown) or by a pump arranged on board the machine (not shown).
- the circuit regulating the operation of the unraveling device and of the movable bottom comprises the hydraulic drive motor 20 of the untangler, the motor 18 for driving the movable floor 5, a hydraulic distributor with control manual 21 connected to a fluid pressure source 22 and at the terminals of the hydraulic motor 20, a distributor 25 to manual control intended during its activation to connect the motor 18 for driving the movable floor 5 in series in the supply circuit of the actuating motor 20 of the unraveling device.
- the distributor 25 is connected to a return to a cover 26 as well as to the motor terminals hydraulic 18 and through the distributor 21, at the downstream terminal of the hydraulic motor 20.
- valve 28 of sequence set for a determined pressure value, connected by a conduit 29 to the upstream terminal of the motor 20.
- both distributors When both distributors are activated, they cause the supply of the two hydraulic motors 20, 18 which respectively drive the taper 6 and the movable floor 5.
- the sequence valve 28 detects on the upstream terminal of the motor 20, a pressure value greater than the value for which it was set and opens, which puts the downstream of the motor 20 for driving the unraveling device 6 into connection with the downstream of the bottom drive motor 18 mobile and therefore interrupts the supply of the latter and therefore causes the movable floor 5 to stop.
- the unraveling device 6 then receives all the available pressure drives the products to the outlet of the machine until the pressure in the circuit hydraulic drop, showing that the effort required the untangler has returned to normal.
- sequence valve 28 closes and thus causes power to the hydraulic motor 18 and it again drives the movable bottom 5 which makes advance the product to be desiled to the unscrambler 6.
- the transfer of the hydraulic fluid supply on one of the motors allows to gradually cancel the cause of the overload and automatic restart on the other motor.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
- Structure Of Transmissions (AREA)
- Control Of Transmission Device (AREA)
- Harvester Elements (AREA)
- Control Of Fluid Gearings (AREA)
- Motor Power Transmission Devices (AREA)
Description
- la Fig.1 est une vue schématique en élévation et en coupe d'une machine désileuse à laquelle est appliqué le dispositif de régulation hydraulique suivant l'invention;
- la Fig.2 est un schéma hydraulique du dispositif de régulation suivant l'invention; et
- la Fig.3 est une vue schématique en perspective de moyens de couplage des leviers de commande des deux distributeurs hydrauliques faisant partie du ciruit de la Fig.2.
Claims (3)
- Dispositif de régulation hydraulique de la rotation de deux arbres entraínés respectivement par un premier et un second moteurs hydrauliques (20,18) alimentés en fluide hydraulique à partir d'une source commune à laquelle ils sont reliés en série au moyen de distributeurs respectifs (21,25), caractérisé en ce que la borne aval du premier moteur hydraulique (20) est reliée à la borne aval du second moteur hydraulique (18) au moyen d'une valve de séquence (28) réglée pour une valeur prédéterminée de pression et reliée à la borne amont du premier moteur (20) et destinée à provoquer par son ouverture l'arrêt du second moteur lorsque la pression sur la borne amont du premier moteur atteint ladite valeur prédéterminée.
- Dispositif de régulation suivant la revendication 1, caractérisé en ce que le premier moteur hydraulique (20) est le moteur d'entraínement d'un dispositif démêleur (6) tandis que le second moteur hydraulique est le moteur d'entraínement d'un fond mobile (5), notamment d'une machine désileuse, pailleuse ou mélangeuse et en ce que la valve de séquence (28) est reliée par un conduit (29) à la borne amont du moteur (20) d'entraínement du dispositif démêleur (6) et à la borne aval du moteur (18) d'entraínement du fond mobile (5).
- Dispositif de régulation suivant la revendication 2, caractérisé en ce que les premier et second distributeurs (21,25) sont des distributeurs à commande manuelle, et en ce que le levier (30) du second distributeur (25) est couplé au levier (32) du premier distributeur (21) par une butée (31) obligeant l'actionnement du premier distributeur (21) avant celui du second distributeur (25) ou au moins simultanément avec celui-ci, entraínant l'actionnement du dispositif démêleur (6) en premier ou au moins simultanément avec le fond mobile (5).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9315979 | 1993-12-31 | ||
FR9315979A FR2714743B1 (fr) | 1993-12-31 | 1993-12-31 | Dispositif de régulation hydraulique de la rotation de deux arbres d'entraînement, notamment d'un fond mobile et d'un dispositif démêleur d'une désileuse ou analogue. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0661460A1 EP0661460A1 (fr) | 1995-07-05 |
EP0661460B1 true EP0661460B1 (fr) | 1998-04-22 |
Family
ID=9454664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94403000A Expired - Lifetime EP0661460B1 (fr) | 1993-12-31 | 1994-12-22 | Dispositif de régulation hydraulique de la rotation de deux arbres d'entraínement, notamment |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0661460B1 (fr) |
AT (1) | ATE165426T1 (fr) |
DE (1) | DE69409777T2 (fr) |
DK (1) | DK0661460T3 (fr) |
ES (1) | ES2115905T3 (fr) |
FR (1) | FR2714743B1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5428959A (en) * | 1994-08-01 | 1995-07-04 | Illinois Tool Works Inc. | Pneumatic control circuit |
CN102696361B (zh) * | 2012-06-29 | 2014-04-02 | 中国农业大学 | 一种液压式牧草、秸秆铡切装置 |
CN110762072B (zh) * | 2019-11-05 | 2022-02-15 | 徐州徐工矿业机械有限公司 | 实现工程车辆机构顺序动作的液压***、方法及工程车辆 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1042333B (de) * | 1953-08-17 | 1958-10-30 | Demag Ag | Steuerung fuer hydraulische Antriebe, insbesondere fuer Hebezeuge |
FR2109307A5 (fr) * | 1970-10-12 | 1972-05-26 | Richier Sa | |
GB1468184A (en) * | 1973-04-12 | 1977-03-23 | Australian Iron Steel Pty Ltd | Multi-functional fluid control valve assembly |
AT357458B (de) * | 1977-10-12 | 1980-07-10 | Universale Hoch Und Tiefbau Ak | Einrichtung zum regelbaren antrieb der von hydraulikmotoren angetriebenen misch- vorrichtungen |
FR2563687B1 (fr) * | 1984-05-07 | 1987-03-20 | Jeantil Sa | Dispositif de demelage a convoyeurs pour machines distributrices de fourrage, ensilage, paille ou autre |
EP0221852A3 (fr) * | 1985-11-07 | 1988-11-23 | Fritz Haug AG | Dispositif pour travailler des matériaux relativement durs |
-
1993
- 1993-12-31 FR FR9315979A patent/FR2714743B1/fr not_active Expired - Lifetime
-
1994
- 1994-12-22 ES ES94403000T patent/ES2115905T3/es not_active Expired - Lifetime
- 1994-12-22 EP EP94403000A patent/EP0661460B1/fr not_active Expired - Lifetime
- 1994-12-22 DK DK94403000T patent/DK0661460T3/da active
- 1994-12-22 DE DE69409777T patent/DE69409777T2/de not_active Expired - Lifetime
- 1994-12-22 AT AT94403000T patent/ATE165426T1/de active
Also Published As
Publication number | Publication date |
---|---|
FR2714743B1 (fr) | 1996-02-23 |
DE69409777T2 (de) | 1998-09-24 |
ATE165426T1 (de) | 1998-05-15 |
DK0661460T3 (da) | 1999-01-25 |
EP0661460A1 (fr) | 1995-07-05 |
FR2714743A1 (fr) | 1995-07-07 |
DE69409777D1 (de) | 1998-05-28 |
ES2115905T3 (es) | 1998-07-01 |
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