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WO2019170282A1 - Épandeur à deux disques à entraînement hydraulique des disques distributeurs - Google Patents

Épandeur à deux disques à entraînement hydraulique des disques distributeurs Download PDF

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Publication number
WO2019170282A1
WO2019170282A1 PCT/EP2019/000063 EP2019000063W WO2019170282A1 WO 2019170282 A1 WO2019170282 A1 WO 2019170282A1 EP 2019000063 W EP2019000063 W EP 2019000063W WO 2019170282 A1 WO2019170282 A1 WO 2019170282A1
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic
flow control
zweischeibenstreuer
control valve
pressure
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.)
Ceased
Application number
PCT/EP2019/000063
Other languages
German (de)
English (en)
Inventor
Franz Doll
Thomas Zeitvogel
Volker Stöcklin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RAUCH Landmaschinenfabrik GmbH
Original Assignee
RAUCH Landmaschinenfabrik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RAUCH Landmaschinenfabrik GmbH filed Critical RAUCH Landmaschinenfabrik GmbH
Publication of WO2019170282A1 publication Critical patent/WO2019170282A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C17/00—Fertilisers or seeders with centrifugal wheels
    • A01C17/005—Driving mechanisms for the throwing devices
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C17/00—Fertilisers or seeders with centrifugal wheels
    • A01C17/006—Regulating or dosing devices
    • A01C17/008—Devices controlling the quantity or the distribution pattern

Definitions

  • the invention relates to a two-disc spreader with two rotatably mounted distributor disks and one each, egg ner respective distributor disc associated dosing, wherein a respective distributor disc of each one on or in the support bracket arranged hydraulic motor is navange- driven, which for controlling and / or regulating the speed of Manifolds independently associated with each one flow control valve.
  • Such Zweibenibenstreuer usually include a Ver the divisional receiving container with two approximately funnel-shaped downwardly tapering sections, at the bottom of each one or more outlet openings are arranged, where in each case a dosing is associated with the or each outlet opening (s) to remove the material in the ge desired amount - or more precisely: with the desired mass flow - the container.
  • the dosing is by means of a suitable actuator, e.g.
  • CONFIRMATION COPY ne is ever a rotatably mounted and rotatably driven distributor disc, by means of which the distribution is well distributed over the desired working width.
  • Some Zweitialnstreuer are also equipped with a device for adjusting the mattersthes of the Vermaschinerut on a respective, usually provided with spreader Vertei lerusion, the task point with respect to the distributor disc radially (in particular to magnification tion / reduction of the spreading fan) and / or in the circumferential direction (Especially for rotating the scattering fan about the axis of rotation of the distributor disc) can be adjusted.
  • Such an agricultural distributor is known for example from DE 10 2005 015 228 Al.
  • the drive of the distributor discs in a purely mechanical manner by the Vertei lerusionn bearing waves are connected to a drive train in conjunction, which has a central input shaft, which is connected to a PTO of a tractor, such as a tractor.
  • the central input shaft of the drive train usually drives via a central gear Ge serving to drive a respective distributor disc transverse shaft, wherein the central transmission z. B. may include a bevel gear provided with corner gears, via which the central input shaft with the transverse shaft is in rotary connection.
  • the transverse shaft is in turn via a respective gearing with a respective support shaft egg ner respective distributor disc in rotary connection.
  • one of the distributor discs by means of a downstream of the central transmission to parent reduction gear with variable output speed with a respect to the other distribution discs different speed can be rotated.
  • a ticket dispenser is known, for example, from WO 2017/045763 A1.
  • the hydraulic motors are either to the hydraulic system of a tractor, such as a tractor to be closed or the Zweiissuenstreuer is equipped with a eige NEN hydraulic system, the Hydraulikmoto ren usually in a direction approximately perpendicular to the direction extending support bracket are arranged, which also for storage serving the distributor discs Wel len serves.
  • a for supplying the hydraulic motors with hydraulic fluid and for controlling the hydraulic motors serve the hydraulic block, which in particular the respec conditions hydraulic motor associated flow control valves, is usually located in the direction of travel vorde ren, so the tractor or the tractor facing side of the two disc spreader and therefore requires a re relatively expensive guidance of the hydraulic lines from the hydraulic block to the hydraulic motors.
  • EP 2 386 198 B1 addresses this problem by virtue of the fact that the hydraulic block is connected to a support bracket carrying the hydraulic motors via a mechanical support, which leads to a compact construction and a simple exchange of the Hydraulic motors, eg on the occasion of a maintenance, guaranteed, but nevertheless may be liable problembe in several respects.
  • the relatively long hydraulic lines which connect the flow control valves housed in the hydraulic block to the respective hydraulic motors, in particular at relatively high mass flows of material to be transported, are in danger of being set in vibration, with the result that the speeds of the distributor disks are not remain sufficiently stable.
  • This is primarily due to the fact that the mass flow from the dosing exiting material is cut off during the operation of the spreader vanes of the distributor discs, which at regular intervals temporarily higher load on the turbulence equipped with the spreader discs shafts in the drive train to the distributor disks is transmitted. It ent thus are load peaks, which can put the entire system in vibration and causes the aforementioned rotational speed fluctuations of the hydraulic motors, so that it can lead to scattering errors.
  • the US 2005/0173568 Al describes a designed as an attachment to a transport vehicle Zweitionnstreuer with two rotatably mounted distributor discs, which are rotationally driven by a hydraulic motor.
  • the hydra likmotoren communicate with a common flow control valve, so that the opposing speed of the distri lerusionn not independent of each other, but only in common can be changed.
  • the invention is therefore the object of a Zweiidenstreuer of the type mentioned under at least most extensive avoid the disadvantages mentioned in a simple and cost-effective manner to further educate that with the simplest handling of the hydraulic system, the risk of vibration excitation of the same and thus consequent scattering error mi is minimized.
  • this object is achieved in a Zweischei benstreuer of the type mentioned above in that the respective flow control valve of a respective hydraulic motor in the immediate vicinity of a respective Hydraulikmo sector is connected to this.
  • the distributor disks (5, 6) are rotatably mounted on or in a Tragkon sole (13), which is in particular set to egg nem frame of the distributor and extends for example approximately transverse to the direction of travel.
  • both the respective hydraulic motor and its respective flow control valve is or are arranged on or in such a support bracket.
  • the arrangement of the hydraulic motors or their flow control valves on or before preferably in the support bracket ensures on the one hand easy accessibility both to the hydraulic motors and in particular to the flow control valves, so that there is a simpler installation and in particular a more convenient maintenance.
  • the support bracket is largely protected due to their arrangement below the distributor discs from flying particles scattered, so that there is less Lackieraufwand to the hyd raulischen components receiving support bracket and in particular also special to preserve the fluidic contacting hydraulic lines to prevent corrosion.
  • the hydraulic motors and / or their flow control valves can in principle of course also be arranged differently, such as, for example, on the frame of the two-disc diffuser. ers, at a serving for receiving the distribution goods Be container or the like.
  • a respective hydraulic motor together with egg nem respective flow control valve forms a structural unit in the form .ei nes hydraulic block.
  • the connected to the hydraulic motor flow control valve can be accommodated likmotors example in the housing of the hydra.
  • the serving to drive a respective distributor disc hydraulic motor Ren in the manner of a hydraulic parallel circuit can contact hy cially to be connected in particular in a simple manner to the hydraulic system of a tractor, such as a tractor or the like, or to its own hydraulic system the Zweiterionstreuers to be closed, wherein the hydraulic motors can be controlled independently by means of ih res respective flow control valve independently of each other.
  • the pressure and / or the return port is here before geous enough directly to the support bracket, so that easy accessibility is ensured.
  • One of the hydraulic motors with its respective flow control valve to the pressure port and the other hydra likmotor is connected with its respective flow control valve to the return port;
  • One of the hydraulic motors with its respective flow control valve is connected to both the pressure port and to the return port.
  • a parallel connection of the Hyd raulikmotoren of the aforementioned type can be realized, in the former case, the pressure connection to a hydra likmotor, preferably at the hydraulic block, is arranged, while the return port to the other hydra likmotor, preferably at the hydraulic block arranged and both the pressure ports and the remindlaufan connections of both hydraulic motors are in communication with each other, ie both hydraulic motors are in fluid communication both with the common pressure port (on the one hydraulic motor) and with the common return port (on the other hydraulic motor).
  • both the pressure connection and the return connection are arranged on the one hydraulic motor, preferably on the hydraulic block thereof, while in turn both the pressure connections and the return connections of both hydraulic motors are in communication with one another, ie both hydraulic motors are connected both to the common men pressure connection (to the one hydraulic motor) and with the common return port (on the same hydra likmotor) in fluid communication.
  • both hydraulic motors are preferably - as already indicated - both hydraulic motors with their respective Stromregelven valve both on the pressure side and the return side by means of a connecting line with each other in Connection, wherein the connecting lines are arranged in particular in the interior of the support console and thus protected from external influences.
  • the connecting lines can be configured substantially rigid, wherein they may be formed in example of metal.
  • a suction valve can be arranged in front of advantageous embodiment, which also in particular is integrated in the formed by a respective hydraulic motor together with a jewei time flow control valve assembly in the form of a hydraulic block.
  • the expediently configured in the manner of a check valve Nachsaugventil is hydraulically connected in parallel to a respective hydraulic motor in parallel, so that it is ensured that a hydraulic fluid flow to the respective hydraulic likmotor is maintained when the input pressure drops to the hydraulic motor to a value below the return-side output pressure and opens the Nachsaugventil.
  • a respective flow control valve of a respective hydra likmotors may preferably on the one hand a pressure compensator, on the other hand, a throttle or expansion valve or Stetig valve, in particular in the form of a proportional, control and / or servo valve include, so that the flow of a hydraulic fluid even under changing load how un ferent speeds of the distributor disks and / or impacting on these mass flows of Verteilgut, wei kept constant as possible, but the speed of jewei time hydraulic motor independently controlled and / or can be controlled.
  • load-sensing systems load pressure signaling systems
  • LS systems load pressure signaling systems
  • load pressure signaling systems include a hy metallic control and / or regulation, the pressure and / or the flow rate of the hydraulic pump of the Hydrauliksys system the tractor or even the two-disc spreader itself, provided that it has its own hydraulic system, to which the hydraulic motors of the two-disc Spreader required operating conditions adjust assets, so that the hydraulic pump does not always have to work with maximum power, which otherwise caused high varnish losses, which went hand in hand with an increased fuel consumption of the tractor. Consequently, due to the load-pressure-signaling system, the hydraulic pump of the towing vehicle must always provide only that volume flow of hydraulic fluid which is needed by the hydraulic motors of the two-disc spreader.
  • the load pressure signaling system is expediently connected to a separate, in particular likewise arranged on the Tragkonso le, load pressure signaling connection in connection, so that in this respect a simple and convenient connection of the load pressure reporting system of Zweiignenstreuers is ensured to the tractor in that the load pressure signaling connection can be connected to a corresponding connection of the traction machine, provided that the tractor is equipped with such as is normally the case with modern tractors.
  • the load pressure signaling system expediently comprises, on the one hand, a circulation pressure compensator, on the other hand, an exchange valve which is effective between the pressure and return sides, in particular in the form of a proportional, regulating and / or servo valve, preferably in the form of a proportional pressure regulator. valve.
  • the circulation pressure compensator is arranged on the pressure side of the hydraulic motor and the associated flow control valve and is in particular on the one hand to the pressure port, on the other hand with the return port in conjunction to be effective between the pressure and the return soap, either after hydraulic connection of the two disc spreader to the hydraulic system of a tractor or whether it is more or less permanent, provided that Double disc spreader has its own hydraulic system.
  • the changeover valve e.g. in the form of a proportional pressure control valve
  • the load pressure signaling system with a control and / or regulating device is in communication, which in the case of occurrence of a vibration of the torque and / or the speed of at least one distributor disc controls the
  • the tone valve such and / or regulates that the pressure of the load-signaling connection
  • the shuttle valve which is embodied, for example, as a proportional pressure regulating valve, activates or corrects the load pressure reporting system in such a way that the outlet pressure of the load pressure reporting terminal remains essentially constant or even with a pressure signal.
  • Mean vibration of the torque and / or the speed of the distributor disc (s) has inverse vibration.
  • a respective distributor disk can be assigned therefore vorzugswei ⁇ se, a speed sensor and / or a torque sensor to detect the speed of a respective distributor disc independently.
  • speed sensors here are any known, preferably non-contact, sensors including those mentioned in the above cited EP 2 386 198 Bl in Be costume, which, for example, in an angle gear, wel Ches the output shaft of a respective hydraulic motor with a respective distributor disc bearing shaft verbin ⁇ det, NEN be used and Queen with an incremental sensor on at least one of the aforementioned wave interaction.
  • the incremental encoder can have several re, eg up to 16 or more, increments on its circumference and can provide a high resolution.
  • the sensors should preferably be on and off by means of a separate housing to exchange them without removing parts of the hydra liksystems and the drive train of the distribution discs easily and accurately positioned to use again.
  • torque sensors also come preferably before contact-free, sensors of any known type into consideration, such as magnetostriction sensors, as they are known as such, for example, from EP 2 625 945 Bl or EP 2 767 149 Bl.
  • the control and / or regulating device is expediently in connection with the speed sensor and / or with the rotational torque sensor of a respective distributor disk to detect the occurrence of vibration of the torque and / or the speed of a respective distributor disc and a such vibration, in particular by appropriate control and / or regulation of the selventils the load pressure signaling system in the above manner to compensate.
  • At least one of the two hydraulic ⁇ likmotoren with its respective flow control valve also be associated with a check valve, which in particular in the of this hydraulic motor together with his
  • the check valve is expediently the return side of the hydraulic motor and its flow control valve angeord net and in particular with the return port in connection to prevent hydraulic connection of Zweischei benstreuers to the hydraulic system of a tractor a return flow of hydraulic fluid from the return side to the pressure side.
  • the hydraulic motors are with their respective flow control valves and in particular the other hydraulic components, such as the Nachsaugventile, the load pressure message system, the check valve and the like, arranged inside the support bracket to protect it from external influences and before To prevent corrosion and mechanical damage.
  • the other hydraulic components such as the Nachsaugventile, the load pressure message system, the check valve and the like, arranged inside the support bracket to protect it from external influences and before To prevent corrosion and mechanical damage.
  • the support bracket of the two-disc spreader can be designed preferably before preferably in the form of a U-profile, which at its open, e.g. lower side te, in particular by means of a protective grid, is closed.
  • Fig. 1 is a schematic perspective view of a Two-disc spreader without the drives of the splitter discs
  • Fig. 2 is a schematic perspective view of
  • Fig. 3 is a schematic perspective view of the
  • Supporting console of Figure 2 from below with the herein housed drives the distributor disks according to a first embodiment.
  • FIG. 4 shows a schematic plan view of the support bracket according to FIG. 3 from below;
  • FIG. 5 shows a schematic sectional view of the support bracket according to FIGS. 3 and 4 along the sectional plane V-V of FIG. 4;
  • Fig. 6 is a schematic view of a hydraulic circuit diagram of the hydraulic drive of the distributor discs of the two-disc spreader of FIG. 1 to 5;
  • Fig. 7 is a substantially corresponding to FIG. 3
  • FIG. 8 shows a schematic top view of the carrying console according to FIG. 7 from below;
  • FIG. 9 is a schematic sectional view of the support bracket according to FIGS. 7 and 8 along the sectional plane IX-IX of FIG. 8th.
  • the two-disc spreader comprises a frame 1, which receives a serving for storing the distribution goods container 2.
  • the container 2 has, for example, two approximately funnel-shaped un th tapers sections 3, 4, which are equipped at its bottom with one, not visible in FIG.
  • the metering independently STEU independently and are controllable.
  • the distribution can be metered distributed to below the same arranged distributor discs 5, 6, sitting in each exchange bar on each approximately vertical and rotatably mounted shaft.
  • the distributor discs 5, 6 are equipped with two or more spreader blades or blades 7, 8, which are also expediently interchangeable fixed to a jewei time distribution disc 5, 6 and the United divide on rotation of the distributor discs 5, 6 about zent rifugal drop.
  • each trichterförmi gene section 3, 4 each have a device for Ver position of the task point on a respective distributor disc 5, 6 may be provided, which on scales 9, 10 he is recognizable (see eg EP 2 057 876).
  • the frame 1 in the embodiment shown, two extending approximately in the direction of travel, outwardly swept C-profiles 11, 12, between which - again in
  • the support bracket 13 is formed from a downwardly open U-profile, which at its lower side, for example by means of a protective grid (not shown), as well as at both ends by means of a flange 14, which at the same time for attachment of the support bracket 13 to the C Profiles 11, 12 serve the frame 1, is closed. In this way, interfaces can be formed, which allow the installation of support brackets 13 for any on types of operation for the distributor disks 5, 6.
  • the distributor disks 5, 6 in the present case by a rotationally housed in the U-profile of the support bracket 13 hydraulic motor, which are connected to the Hydrauliksys system of a tractor, such as a tractor, and which number for controlling and / or regulating the speed the distributor discs 5, 6 are each independently assigned a flow control valve, as explained below in detail, wherein this hydraulic drive can be exchanged for example against an electric drive by the provided with the hydraulic motors support bracket 13 against a fitted with electric motors support bracket is replaced (not graphically Darge presents).
  • agitators can also be driven by means housed in the support bracket 13 hydraulic motors, for example in a rotary step movement, in the present case but also have an electric drive, also not shown.
  • Fig. 2 is a detail view of the support bracket 13 with its terminal flanges 14 schematically Darge presents, wherein the support bracket 13 at the top in Be rich their ends by a respective shaft 16, 17 interspersed, which is mounted inside the support bracket 13 and for rotationally fixed placement of the distributor disks 5, 6 is used.
  • the support bracket 13 for example, via one each in Fig.
  • corresponding hydraulic lines 20a, 21a connected, on the one hand to the pressure port, on the other hand to the return port of the hydraulic system a tractor, such as a tractor can be connected. While provided for connection to the pressure connection of the tractor hydraulic line 20a is connected to a common pressure port P of the support bracket 13, which is provided for connection to the return port of the tractor hydraulic line 21a with a common return port R of the support bracket 13 is connected (see further below with reference to Figs. 3 ff).
  • the lines 20a, 21a can be substantially rigid, for example made of metal, or be formed by conventional hose lines.
  • the support bracket 13 On the - viewed in the direction of travel - front side of the support bracket 13 may be mounted approximately centrally a mounting bracket 22, which receives a - here electric - drive 23 with an eccentric drive 24 for the agitators, so that on pa rallele tabs 25, 26th of the eccentric drive 24 each have the inner end of a pull or push rod of a Hebelgetrie bes (not shown) can connect.
  • the hydraulic motors 30, 31 associated with a respective distributor disk 5, 6 are arranged inside the U-profile of the support bracket 13, which can be configured eg as external gear motors or in any other known design NEN.
  • the hydraulic motors 30, 31 are, for example hori zontal ⁇ and arranged transversely to the direction of travel in the region of opposite ends of the support bracket.
  • each hydraulic motor 30, 31 is transmitted via a respective angular gear 32, 33 on the respective distributor disc 5, 6 supporting shaft 16, 17, wherein Be rich in each angular gear 32, 33 for speed detection one or more speed sensors (not ge shows) may be provided, which cooperates, for example with an incremental encoder with distributed on the circumference of the shafts 16, 17 increments, as it is known as such from the above-cited EP 2 386 198 Bl.
  • Torque sensor may be provided (also not shown), such as a Magnetostriktionssensors, e.g. a fluxgate magnetometer.
  • the speed and torque sensors are connected to a control and / or regulating device of the two-disc dispenser, wherein the signals taken by the sensors can also be transmitted to an operating terminal.
  • Vibration excitations of the hydraulic system is a depending Weil flow control valve ⁇ 34, 35 thereby in the immediate vicinity He associated hydraulic motor 30, 31 connected to this, in the present case, a respective hydraulic motor together with a respective flow control valve 34, 35 each form a unit in the form of a hydraulic blocks 36, 37 forms.
  • the hydraulic blocks 36, 37 which each have the hydraulic motor 30 and its flow control valve
  • both hydraulic blocks 35, 36 In order to fluidically contact both hydraulic blocks 35, 36 with the respective hydraulic motors 30, 31 and their flow control valves 34, 35 via the common pressure P or return connections R, these are each on the pressure side via a connecting line 38 as well as on the return side via a connecting line 39 to each other in Ver bond, the pressure and return side connecting lines 38, 39 disposed inside the U-profile of the support bracket 13 and in turn substantially rigid, eg made of Me tall, manufactured or can be formed by conventional hydraulic hoses.
  • a - in vorlie ing case in the immediate vicinity of the remindlaufan circuit R arranged - load pressure reporting port LS of the support bracket 13 can be seen, which with a load pressure reporting system 40 (see 6), which is inte grated into a 37 of the two hydraulic blocks 36, 37 and serves the pressure or the flow rate of the hydraulic pump of the hydraulic system of a tractor to adapt to the requirements of the hydraulic motors 30, 31 of the two-disc stirrer operating conditions, so that the hydraulic pump of the tractor does not always have to work with ma ximaler performance.
  • the load pressure reporting port LS may conveniently also be arranged on the Tragkon sole 13 and be connected via a load pressure message line 41 to a corresponding LS port of the hydraulic system of the tractor.
  • FIG. 6 shows a schematic view of the hydra likschaltplans from which the fluidic contacts of the two each have a hydraulic motor 30, 31 and one flow control valve 34, 35 comprehensive hydraulic blocks 36, 37 are shown in detail. All are shown in FIG.
  • a respective Nachsaugventil 42, 43 is assigned, which is designed We sentlichen in the manner of a biased in the direction of the return side check valve.
  • the after- Mouth valve 42, 43 is hydraulically connected in parallel to the hydraulic motor 30, 31 and arranged in a bridging bypass line 44, 45 this. It serves for
  • this comprises - on the pressure side of a respective hydraulic motor 30,
  • the right in Fig. 6 hydraulic block 37 comprises an addition on the one hand via the pressure-side connec tion line 38 to the common pressure port P, on the other hand to the common return port R and further connected to the load pressure signal port LS, as "load -Sensing system "designated load pressure reporting system 40, which on the pressure side of the flow control valve 35 and the hydraulic motor 31 is arranged and has the embarkga ⁇ be, the pressure and / or flow of the connected via lines 20a, 21a and communicating with the load pressure signaling port hydraulic pump of the hydraulic liksystems a tractor to the current Melzu stood the hydraulic motors 30, 31 adapt.
  • the load-sensing system 40 has for this purpose, on the one hand a circulating pressure compensator 50, on the other hand, designed in the present case in the form of a proportional pressure control valve shuttle valve 51, which are so hydraulically interconnected that between the pressure side and the remindlaufsei ⁇ te effective circulation pressure compensator 50 via a load pressure line 52, which is ruled out at the load pressure reporting port LS sen, with the equally effective between the pressure side and return side shuttle valve 51 is connected.
  • a circulating pressure compensator 50 on the other hand, designed in the present case in the form of a proportional pressure control valve shuttle valve 51, which are so hydraulically interconnected that between the pressure side and the remindlaufsei ⁇ te effective circulation pressure compensator 50 via a load pressure line 52, which is ruled out at the load pressure reporting port LS sen, with the equally effective between the pressure side and return side shuttle valve 51 is connected.
  • Last ⁇ res is also connected to the control and / or regulating device (not shown) in communication, which the shuttle valve 51 in the event of the occurrence of a detected by means of the above-mentioned sensors vibration of the torque and / or the speed of at least one distributor disc 5, 6 such controls and / or regulates that the pressure of the load-signaling terminal LS remains substantially constant or at substantially the same frequency as the oscillation of the torque and / or the rotational speed of the distributor disc (s)
  • the right in Fig. 6, provided with the load-pressure-signaling system 40 hydraulic block 37 is equipped with a check valve 53, which is downstream of the hyd raulikmotors 31, that is arranged on the return soap, even in the case of a pressure side pressure drop always a return flow of the hydraulic fluid from the return side to prevent the pressure side.
  • Pressure port P as well as to the return port R is closed, but again the hydraulic blocks 36, 37 with their respective hydraulic motors 30, 31 both pressure side via the connecting line 38 and the return side via the connecting line 39 are in communication.
  • the fluidic contacting is done in this case, success Lich on one and the same hydraulic block 37, which does not change the function.
  • FIGS. 7 to 9 A corresponding, not shown again hydraulic circuit diagram of the embodiment of FIGS. 7 to 9 un therefore differ from that of FIG. 6 only in that the pressure port P not on the left in Fig. 6, but as the return port R to the right in Fig. 6, provided with the load pressure signaling system 40 Hyd raulikblock 37 and connected via the connecting line 38 with the left in Fig. 6 hydraulic block 36 (5) re.
  • identical and functionally identical components with the same reference numerals see ver and require no further discussion.

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

L'invention concerne un épandeur à deux disques pourvu de deux disques distributeurs (5, 6) montés en rotation et de respectivement un organe de dosage associé à un disque distributeur (5, 6) respectif. Un disque distributeur (5, 6) respectif est entraîné en rotation par respectivement un moteur hydraulique (30, 31), auquel est associé respectivement une soupape de régulation de débit (34, 35) pour la commande ou la régulation de la vitesse des disques distributeurs (5, 6) indépendamment l'un de l'autre. L'objet de l'invention est de réduire au minimum le risque d'une excitation vibratoire du système hydraulique en cas d'alternances de charges. Selon l'invention, la soupape de régulation de débit (34, 35) respective d'un moteur hydraulique (30, 31) respectif à proximité immédiate d'un moteur hydraulique (30, 31) respectif est raccordée à celui-ci. Les disques distributeurs (5, 6) peuvent être montés en particulier sur ou dans une console de support, un moteur hydraulique respectif pouvant être disposé avec sa soupape de régulation de débit respective de préférence pareillement sur ou dans la console de support (13) et pouvant former par exemple respectivement une unité modulaire se présentant sous forme d'un bloc hydraulique (37).
PCT/EP2019/000063 2018-03-08 2019-03-05 Épandeur à deux disques à entraînement hydraulique des disques distributeurs Ceased WO2019170282A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018001875.0 2018-03-08
DE102018001875.0A DE102018001875A1 (de) 2018-03-08 2018-03-08 Zweischeibenstreuer mit hydraulischem Antrieb der Verteilerscheiben

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Publication Number Publication Date
WO2019170282A1 true WO2019170282A1 (fr) 2019-09-12

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WO (1) WO2019170282A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020112620B3 (de) * 2020-05-11 2021-06-24 Amazonen-Werke H. Dreyer SE & Co. KG Schleuderstreuer zum Ausbringen körnigen Streuguts, insbesondere Dünger
DE102020128996A1 (de) 2020-11-04 2022-05-05 Horsch Maschinen Gmbh Hydraulikanlage für eine landwirtschaftliche Verteilmaschine

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0282812A2 (fr) * 1987-03-11 1988-09-21 Amazonen-Werke H. Dreyer GmbH & Co. KG Système hydraulique pour entraîner un épandeur
WO1988009609A2 (fr) * 1987-06-04 1988-12-15 Rauch Landmaschinenfabrik Gmbh Repandeur centrifuge d'engrais
EP0330839A1 (fr) * 1988-02-05 1989-09-06 Amazonen-Werke H. Dreyer GmbH & Co. KG Epandeur centrifuge
DE19756722A1 (de) * 1997-12-19 1999-06-24 Amazonen Werke Dreyer H Schleuderstreuer
US20050173568A1 (en) 2004-02-11 2005-08-11 Ty-Crop Investments Ltd. Twin spinner spreading apparatus
DE102005015228A1 (de) 2005-04-02 2006-10-05 Rauch Landmaschinenfabrik Gmbh Schleuderstreuer für Streugut
EP2057876A1 (fr) 2007-11-07 2009-05-13 Rauch Landmaschinenfabrik Gmbh Epandeur à double plaque
EP2386198A1 (fr) 2010-05-14 2011-11-16 Rauch Landmaschinenfabrik Gmbh Appareil d'épandage d'engrais
EP2625945A1 (fr) 2012-02-13 2013-08-14 RAUCH Landmaschinenfabrik GmbH Procédé de détection de couple des disques d'épandage d'un épandeur à disques et tel épandeur à disques
EP2767149A2 (fr) 2013-02-13 2014-08-20 Rauch Landmaschinenfabrik Gmbh Procédé de régulation du débit massique de produits d'épandage dans un épandeur à disque
WO2017045763A1 (fr) 2015-09-18 2017-03-23 Rauch Landmaschinenfabrik Gmbh Machine distributrice comprenant au moins deux disques distributeurs à vitesse de rotation variable

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013211621A1 (de) * 2013-06-20 2014-12-24 Robert Bosch Gmbh Hydrostatischer Fahrantrieb

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0282812A2 (fr) * 1987-03-11 1988-09-21 Amazonen-Werke H. Dreyer GmbH & Co. KG Système hydraulique pour entraîner un épandeur
WO1988009609A2 (fr) * 1987-06-04 1988-12-15 Rauch Landmaschinenfabrik Gmbh Repandeur centrifuge d'engrais
EP0330839A1 (fr) * 1988-02-05 1989-09-06 Amazonen-Werke H. Dreyer GmbH & Co. KG Epandeur centrifuge
DE19756722A1 (de) * 1997-12-19 1999-06-24 Amazonen Werke Dreyer H Schleuderstreuer
US20050173568A1 (en) 2004-02-11 2005-08-11 Ty-Crop Investments Ltd. Twin spinner spreading apparatus
DE102005015228A1 (de) 2005-04-02 2006-10-05 Rauch Landmaschinenfabrik Gmbh Schleuderstreuer für Streugut
EP2057876A1 (fr) 2007-11-07 2009-05-13 Rauch Landmaschinenfabrik Gmbh Epandeur à double plaque
EP2386198A1 (fr) 2010-05-14 2011-11-16 Rauch Landmaschinenfabrik Gmbh Appareil d'épandage d'engrais
EP2625945A1 (fr) 2012-02-13 2013-08-14 RAUCH Landmaschinenfabrik GmbH Procédé de détection de couple des disques d'épandage d'un épandeur à disques et tel épandeur à disques
EP2767149A2 (fr) 2013-02-13 2014-08-20 Rauch Landmaschinenfabrik Gmbh Procédé de régulation du débit massique de produits d'épandage dans un épandeur à disque
WO2017045763A1 (fr) 2015-09-18 2017-03-23 Rauch Landmaschinenfabrik Gmbh Machine distributrice comprenant au moins deux disques distributeurs à vitesse de rotation variable

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