 control system and downforce controller for agricultural implantation
专利摘要:
abstract: (en) a downforce controller for an agricultural implement having a double-acting hydraulic cylinder. the cylinder is configured to be coupled to an agricultural row unit and an agricultural toolbar for transmitting a net downforce between the agricultural toolbar and the agricultural row unit. a first pressure in the first chamber of the cylinder and a second pressure in the second chamber of the cylinder having counteracting effects on the net downforce. a manifold coupled to the cylinder is in fluid communication with the first chamber. a pressure control valve supported by the manifold is in fluid communication with the manifold and the first chamber translation of the abstract patent summary of invention: "integrated implantation downforce control systems, methods and apparatus". the present invention relates to a downforce controller for an agricultural implant that has a double acting hydraulic cylinder. the cylinder is configured to be coupled to an agricultural row unit and an agricultural tool bar to transmit a net downward force between the agricultural tool bar and the agricultural row unit. a first pressure in the first cylinder chamber and a second pressure in the second cylinder chamber that have neutralizing effects on the net downforce. a collection tube coupled to the cylinder is in fluid communication with the first chamber. a pressure control valve supported by the collection tube is in fluid communication with the collection tube and the first chamber. 公开号:BR112015001529B1 申请号:R112015001529 申请日:2013-07-25 公开日:2020-04-14 发明作者:Stoller Jason；Levy Kent；Swanson Todd 申请人:Prec Planting Llc； IPC主号:
专利说明:
Invention Patent Descriptive Report for AGRICULTURAL IMPLANTATION CONTROL SYSTEM AND CONTROLLER FOR CONTROLLING. BACKGROUND [0001] During the operation of an agricultural implantation such as an agricultural planter with a row unit, it is difficult to maintain a desired downward force between the soil and the soil tillage wheels of each row unit. Too much downforce can cause unwanted compaction and loss of productivity, while insufficient downforce can cause the row unit to lose planting depth, resulting in potential emergency failure. Recent advances in the measurement and mapping of downward implantation force have highlighted the extreme spatial variation in downward applied force required to maintain the desired downward force as moisture and soil properties change throughout the field being planted. Thus, there is a need in the technique to effectively control, with greater spatial granularity, the downward force applied. BRIEF DESCRIPTION OF THE DRAWINGS [0002] Figure 1A is a perspective view of a modality of a downforce controller. [0003] Figure 1B is a side elevation view of a downward force controller mode in figure 1A. [0004] Figure 1C is a cross-sectional view of the downforce controller in figure 1A. [0005] Figure 2A is a side elevation view of a modality of a planter row unit that incorporates the downforce controller of figure 1A. [0006] Figure 2B is a side elevation view of a planter and a tractor that pulls the row unit. Petition 870190072150, of 7/29/2019, p. 4/14 2/19 planter in figure 2A across a field. [0007] Figure 3 illustrates, schematically, a modality of an electronic control system to control one or more downforce controllers. [0008] Figure 4 is a top view of an embodiment of a fluid control system for controlling multiple downforce controllers. [0009] Figure 5 is a cross-sectional view of another modality of a downforce controller that includes an elevation pressure control valve. [0010] Figure 6 is a top view of another embodiment of a fluid control system for controlling multiple downforce controllers. [0011] Figure 7 is a fluid diagram that illustrates a manifold tube modality for controlling the pressure supplied to a downforce controller. DESCRIPTION DESCENDING FORCE CONTROLLER [0012] Referring to the drawings, in which identical reference numerals designate identical or corresponding parts in the different views, figures 1A to 1C illustrate a modality of a descending force controller 100. With reference to figure 1A, the downforce controller 100 includes a collection tube 110 and a cylinder 130. The collection tube 110 preferably includes a collection tube body 102, an elevation control duct 120 and a cavity fitted to receive a pressure control valve downward 140. It should be noted that, as shown in figures 1A to 1C, the downward pressure control valve 140 is fitted to the manifold 110 and thus is fitted to cylinder 130; in the same way, the valve is supported by the collecting tube 110 and, 3/19 thus, it is supported by cylinder 130. The manifold body 102 preferably includes a supply passage 112, a return passage 114 and an elevation control passage 116. Each of the passages 112, 114, 116 preferably includes a left slot, a right slot and an opening that connects the left and right slots. Referring to the cross-sectional view of Figure 1C, the manifold body 110 preferably includes a control pressure diagnostic passage 118 and a downward camera connection passage 111. [0013] The cylinder 130 includes a cylinder body 132, a stem 170 and a gasket 138. The cylinder 130 is mounted on the collecting tube 110. In the embodiment illustrated in figures 1A to 1C, the cylinder body 132 is mounted on the body of the collector tube 102. With reference to the cross-sectional view of figure 1C, gasket 138 is mounted on a lower end of cylinder body 132 and stem 170 is slidably mounted inside gasket 138. Stem 170 includes a piston 174 that separates an interior volume from the cylinder body 132 in a descending camera 136 and an elevating camera 134. [0014] The downward pressure control valve 140 is preferably an electrohydraulic pressure relief and reduction valve. The downward pressure control valve 140 preferably includes a solenoid 142 that has an electric port 144. The downward pressure control valve 140 preferably includes a flow control valve 150 that has a supply port 152, a return port 154 and a control port 158 (figure 1C). Pressure control valve 140 is preferably a proportional pressure relief valve PDR08-P marketed by Hydac International GmbH in Sulzbach, Germany (Hydac). The downward pressure control valve 140 is preferably mounted on the manifold body 102. The pressure relief valve 4/19 downward pressure control 140 is preferably oriented substantially parallel to cylinder 130. [0015] With reference to figure 1C, the supply port 152 of the pressure control valve 140 is in fluid communication with the supply passage 112. The return port 154 is in fluid communication with the return passage 114. The port control 158 is in fluid communication with control pressure diagnostic passage 118. Control pressure diagnostic passage 118 is in fluid communication with downward camera connection passage 111. Downward camera connection passage 111 is in fluid communication with the descending camera 136. The control pressure diagnostic passage 118 and the descending camera connection passage 111 collectively comprise a passage that places the control port 158 in fluid communication with the descending camera 136 The conduit 120 places the elevation control passage 116 in fluid communication with the elevation camera 134. The diagonal passage control pressure sensor 118 is preferably capped with a cap 119 that can be removed to place a meter, transducer or other pressure measurement device in fluid communication with the control port 158. [0016] In operation, flow control valve 150 establishes a control pressure at control port 158, selectively allowing flow between control port 158, supply port 152 and return port 154, as is known in the technique. Solenoid 142 changes an operating state of the downward pressure control valve 140 (for example, by imposing a force on a component of the flow control valve 150) to modify the control pressure as is known in the art. The control pressure adjusted by solenoid 142 corresponds, preferably 5/19 rentially, to a signal received at electrical port 144. Thus, the downward pressure control valve 140 is configured to maintain any of a continuous range of pressures at control port 152 and is additionally configured to maintain selectively one of such a continuous range of pressures based on the signal received by solenoid 142. INSTALLATION AND IMPLEMENTATION OPERATION [0017] With reference to figures 2A and 2B, a modality of the downforce controller 100 is illustrated installed on a planter 10 pulled by a tractor 5. Planter 10 includes a tool bar that extends transversely, 14, in which multiple row units 200 are mounted in a transversely spaced relation. [0018] For fixing purposes, the collector tube body 102 of the downforce controller 100 includes a pin eye 182 (figures 1A to 1C) and the stem 170 includes a latch 172. With reference to figure 2A, the clamp of controller clamp 214 is mounted on front clamp 212. Downforce controller 100 is pivotally connected to controller clamp 214 by an upper pin 215-1 that extends through pin eye 182. The downforce controller 100 is pivotally connected at a lower end to a parallel coupling 216 by a lower pin 215-2 extending through the coupling 172. A collecting tube 700 is preferably mounted on the tool bar 14. [0019] Continuing with reference to figure 2A, the parallel coupling 216 supports the row unit 200 from the toolbar 14, allowing each row unit to move vertically independently from the toolbar of the other spaced row units to accommodate changes in terrain or by meeting the row unit with a stone or other 6/19 obstructions as the planter is pulled through the field. A path quality sensor 364, preferably an accelerometer, is mounted on the row unit 200 and determined to measure the acceleration and vertical speed of the row unit 200. Each row unit 200 additionally includes a mounting clamp 220 on which a hopper support beam 222 and a subframe 224 are mounted. Hopper support beam 222 supports a seed hopper 226 and a fertilizer hopper 228, as well as operationally supporting a seed meter 230 and a seed tube 232. Subframe 224 operationally supports a groove opening assembly 234 and a groove closure assembly 236. [0020] In the operation of the row unit 200, the groove opening assembly 234 cuts a groove 38 in the soil surface 40 as the planter 10 is pulled by the field. The seed hopper 226, which holds the seeds to be planted, transmits a constant seed supply 42 to the seed meter 230. The seed meter 230 of each row unit 200 is preferably selectively coupled to a 372 transmission by means of a hitch 370 so that individual seeds 42 are measured and discharged into seed tube 232 at regularly spaced intervals based on the desired seed population and the speed with which the planter will be dragged through the field. The transmission 372 and the coupling 370 can be of the type disclosed in Patent Application No. US 12 / 228,075, the disclosure of which document is incorporated herein in its entirety by reference. A seed sensor 360, preferably an optical sensor, is supported by the seed tube 232 and is determined to detect the presence of seeds 42 as they pass. Seed 42 hangs from the end of seed tube 232 in groove 38 and seeds 42 are 7/19 covered with soil by the closing wheel set 236. [0021] Groove opening assembly 234 preferably includes a pair of groove opening disc blades 244 and a pair of meter wheels 248 selectively vertically adjustable with respect to disc blades 244 by a depth adjustment mechanism 268. The depth adjustment mechanism 268 preferably pivots around a downward force sensor 362, which preferably comprises a pin equipped with effort meters to measure the force exerted by the ground 40 on the meter wheels 248. The downward force sensor 362 is preferably of the type disclosed in copending Patent Application No Assignee's US 12 / 522,253, the disclosure of which is incorporated herein by in its entirety by reference. In other arrangements, the downward force sensor is of the type disclosed in Patent No. US 6,389,999, whose disclosure is incorporated by herein in its entirety by reference. Disc blades 244 are rotationally supported in a shaft 254 that hangs from subframe 224. Gauge wheel arms 260 pivotally support gauge wheels 248 from subframe 224. Gauge wheels 248 are rotationally mounted on arms gauge wheels that extend forward 260. [0022] With reference to figure 2B, a GPS receiver 366 is preferably mounted on an upper portion of the tractor 5. A monitor 310 is preferably mounted on a cab 7 of the tractor 5. One or more speed sensors 368, such as a Hall-effect wheel speed sensor or a radar speed sensor, are preferably mounted on the tractor 5. ELECTRIC CONTROL SYSTEM [0023] Referring to figure 3, an electrical control system 300 for controlling and measuring downward force and other image functions 8/19 planting is schematically illustrated. In the electrical control system, monitor 310 is preferably in electrical communication with downward pressure control valves 140 and an elevating pressure control valve 740 (described in this document with reference to Figure 7), as well as drives 370 and clutches 372. Monitor 310 is preferably in electrical communication with the downforce sensor 362, as well as the seed sensors 360, the downforce sensor 362, the speed sensors 368 and the receiver of GPS 366. It should be noted that monitor 310 comprises an electronic controller. [0024] Monitor 310 preferably includes a central processing unit (CPU) 316, memory 314 and a graphical user interface (GUI) 312 that allows the user to view and include data on the monitor. The monitor 310 is preferably of the type disclosed in U.S. Patent Application copending of Depositor No. US 13 / 292,384, the disclosure of which is incorporated in this document in its entirety by reference, so that the monitor is capable of displaying information downward force and seeding for the user. DOWNLIGHT FLUID CONTROL SYSTEM [0025] Referring to figure 4, a modality of a fluid control system 400 is illustrated installed in four downforce controllers 100 (each installed in a respective row unit 200), the toolbar 14 and tractor 5. The fluid control system includes a 430 supply, preferably a surplus power port positioned on the tractor 5, and a tank 440, preferably a surplus supply tank port located on the tractor 5 Supply 430 and tank 440 are in fluid communication with the collection tube 9/19 700. [0026] With reference to figure 7, a manifold tube 700 is shown schematically. The collection tube 700 includes a filter 710 (preferably, model No. CP-SAE-120 sold by Hydac), a check valve 720 (preferably, model No. RV16A-01 sold by Hydac), a float selector valve 735 (preferably, model No. PD10-41-0-N-170 sold by Hydraforce of Lincolnshire, Illinois) and the elevating pressure control valve 740 (preferably a valve equivalent to the down pressure control valve 140). The supply 430 is in fluid communication with the filter 710, with a pressure port of the elevation pressure control valve 740 and with a supply hose 422 connected to a supply port of the manifold 700. Tank 440 is in communication fluid with the check valve 720, with an elevation pressure control valve tank port 740 and a return hose 424 connected to a manifold return port 700. A pressure control valve control port lift 740 is preferably in fluid communication with a first float selector valve port 735. A second float selector valve port is preferably in fluid communication with return hose 424. A third float selector valve port The float is preferably in fluid communication with the elevation control hose 426 connected to a flow control port. raising the collecting tube 700. [0027] In operation, the elevation pressure control valve 740 receives a command signal and maintains a desired pressure in the control port of the elevation pressure control valve that corresponds to the command signal. When the pressure in the 426 lift control hose exceeds the pressure in the return hose 10/19 at 424 on a threshold (for example, 11.72 bar (170 psi)), as, for example, when one or more of the row units 200 overhangs from the toolbar causing a substantial flow of fluid from the elevation control hose through float selector valve 734, the float selector valve is preferably configured to move to the position shown in figure 7, so that the fluid can pass the elevation pressure control valve 740 and return to return hose 424. [0028] Returning to figure 4, the supply hose 422 is in fluid communication with the supply passage 112 of the first downforce controller 100-1. The supply passage 112 of each downforce controller 100 is in fluid communication with the supply passage 112 of an adjacent downforce controller 100 via a supply hose between rows 412. The distal port of the supply passage 112 of the distal downforce controller (for example, the right port of the downflow controller supply port 100-4 as shown in figure 4) is preferably capped with a lid 450. It should be noted, in view of figure 4 and of the above description, that a first end of the supply hose between rows 412 is engaged and is supported by the supply passage 112 of a first downforce controller (for example, the downforce controller 100-1) and a second end of the supply hose between rows 412 is fitted and supported by the supply passage 112 of a second of the downforce controller, preferably adjacent (for example, the downforce controller 100-2). [0029] Return hose 424 is in fluid communication with return passage 114 of the first de Pending 11/19 100-1. The return passage 114 of each downforce controller 100 is in fluid communication with the return passage 114 of an adjacent downforce controller 100 via a return hose between rows 414. The distal port of the return passage 114 of the distal downforce controller (for example, the right-hand port of the downforce controller 100-4 return port, as shown in figure 4) is preferably capped with cap 450. It should be noted, in view of figure 4 and from the above description, that a first end of the return hose between rows 414 is fitted and supported by the return passage 114 of a first downforce controller (for example, the downforce controller 100-1) and a second end of the return hose between rows 414 is fitted and supported by the return passage 114 of a second downforce controller, preferably adja (for example, the downforce controller 100-2). [0030] The elevation control hose 426 is in fluid communication with the elevation control passage 116 of the first downforce controller 100-1. The elevation control passage 116 of each downforce controller 100 is in fluid communication with the elevation control passage 116 of an adjacent downforce controller 100 via a lift hose between rows 416. The distal port of the passage elevation control lever 116 of the distal downforce controller (for example, the right port of the downforce controller elevation control passage 100-4, as shown in figure 4) is preferably capped with the lid 450. It should it can be seen, in view of figure 4 and the description above, that a first end of the inter-row lifting hose 416 is fitted and supported by the elevation control passage 116 of a first 12/19 a downforce controller (e.g., downforce controller 100-1) and a second end of the inter-row lift hose 416 is fitted and supported by the lift control passage 116 of a second downforce controller , preferably adjacent (for example, the downforce controller 100-2). [0031] It should be noted, in view of figure 4 and the corresponding description above, that each of the downforce controllers 100 (and thus the associated downward cameras 136 of each of the cylinders 130) is in fluid communication in series , for example, the supply hose fluid 422 passes through the supply passage 112 of the downforce controller 100-1 before reaching the supply passage 112 of the downforce controller 100-2. Likewise, each of the elevation pressure cameras 160 is in fluid communication in series, for example, the fluid from the elevation control hose 426 passes through the elevation control passage 116 of the downforce controller 100-1 before reaching the elevation control pass 116 of downforce controller 100-2. [0032] It should be noted that a single fluid control system 400 can control all row units 200 pulled by tool bar 14 or a subset thereof. In addition, it should be noted that multiple fluid control systems 400 can control distinct subsets or sections of row units 200, so that the lifting pressure in each section can be controlled independently. For example, three fluid control systems 400 can be used to independently control a straight section comprising a first plurality of row units 200 fitted to a right portion of the toolbar 14, a central section comprising a if 13/19 a second plurality of row units fitted to a central portion of the toolbar 14 and a left section comprising a third plurality of row units fitted to a left portion of the toolbar 14. OPERATION [0033] In the operation of the fluid control system 400 and the electronic control system 300, monitor 310 preferably receives a signal of downward force from each sensor of downward force 362. Monitor 310 preferably uses the signal downforce to display the downforce measured in each row unit 200. Monitor 310 preferably uses the downforce signal to select a target net downforce to be applied to each row unit 200 by each downforce controller 100. For example, if the downforce signal is that a particular row unit 200 is exceeding a threshold, monitor 310 preferably reduces the target net downforce to be applied by the corresponding controller 100. In other embodiments, the monitor 310 allows the user to simply select a target net downforce for each downforce controller 1 00. Once the target net downforce has been selected for each downforce controller, monitor 310 preferably sends control signals to each downstream pressure control valve 140 and to the upstream pressure control valve 740, so that the net downforce applied by each downforce controller 100 approaches more closely to the corresponding target net downforce. In some embodiments, the monitor 310 selects the control pressure desired in accordance with the methods disclosed in U.S. Patent Application copending of Depositor No. US 61 / 515,700, the disclosure of which is incorporated in this document in its totalida14 / 19 by reference. DESCENDING FORCE CONTROLLER - ALTERNATIVE MODALITIES [0034] With reference to figure 5, an alternative modality of a modified descending force controller 500 is illustrated in cross section. The downforce controller 500 includes a modified manifold 510 and a modified conduit 520, allowing the incorporation of an individual elevation control valve 1401 to control the pressure in the elevation chamber 134. The individual elevation pressure control valve 140 -1 is preferably substantially similar to pressure control valve 140. It should be noted that the right side of the manifold 510 is similar to the manifold 110, except that elevation control passage 116 is preferably suppressed . [0035] The collection tube 510 preferably includes a collection tube body 502, the elevation control duct 520 and a cavity dimensioned to receive the individual elevation pressure control valve 140-1. The collector tube body 502 preferably includes a supply passage 512 and a return passage 514. Each passage 512,514 preferably includes a left fitting, a right fitting and an opening connecting the left and right fitting. The manifold body 510 preferably includes a control pressure diagnostic passage 518 and a downward camera connection passage 511. [0036] The supply port of the individual elevation pressure control valve 140-1 is in fluid communication with the supply passage 512. The return port of the individual elevation pressure control valve 140-1 is in fluid communication. with the return passage 514. The control port of the individual lift pressure control valve 140-1 is in communication 15/19 fluid connection with the control pressure diagnostics passage 518. The control pressure diagnostics passage 518 is in fluid communication with the downlink camera connection passage 511. The downward camera connection passage 511 is in communication fluid with the descending camera 136. The control pressure diagnostic passage 518 and the descending camera connection passage 511 collectively comprise a passage that places the control port of the individual elevation pressure control valve 140- 1 in fluid communication with the descending camera 136. The conduit 520 places the elevation control passage 516 in fluid communication with the elevation camera 134. The control pressure diagnostic passage 518 is preferably capped (not shown) that can be removed to place a gauge or other pressure measurement device in fluid communication with the control of the 140-1 individual elevation pressure control valve. [0037] With reference to figure 6, a modified fluid control system 600 is illustrated, installed in four downforce controllers 500 (each installed in a respective row unit 200), toolbar 14 and tractor 5 The fluid control system 600 preferably includes the same supply 430 and tank 440 as the fluid control system 500. [0038] The supply passage 112 and the return passage 114 of the first downforce controller 500-1 are in fluid communication with the supply 430 and the tank 440, respectively. As with the fluid control system 500, the supply passage 112 and the return passage 114 of each downforce controller 500 are in fluid communication with the supply passage 112 and the return passage 114, respectively, of a adjacent downforce controller 16/19 500 via supply hose 412 and return hose 414, respectively. [0039] Similarly, supply passage 512 and return passage 514 of the rightmost downforce controller 500-4 are in fluid communication with supply 430 and tank 440, respectively. The supply passage 512 and the return passage 514 of each downforce controller 500 are in fluid communication with the supply passage 512 and the return passage 514, respectively, of an adjacent downforce controller 500 by means of a hose. between rows 612 and a return hose between rows 614, respectively. [0040] The individual elevation control valve 140-1 is preferably in electrical communication with monitor 130. In operation of the modified fluid control system 600, monitor 130 is preferably configured to select pressures from both the valve pressure control valve 140-1 and the pressure control valve 140-1. Monitor 130 is preferably configured to change the commanded lift pressure and down pressure for each downforce controller 500 based on the downforce signal received from the downforce sensor 362 of the corresponding row unit 200. [0041] In other modalities of the downforce controller 500, the downstream camera connection passage 511 is in fluid communication with the control port of the elevation pressure control valve 140-1 via a shut-off valve operated by pilot whose pilot operated pressure port is in fluid communication with the downstream pressure control valve control port 140-1 so that the lift pressure is 17/19 is applied when the downward pressure exceeds a threshold. Similarly, in other modalities of the downforce controller 100, the elevation control passage 116 is in fluid communication with the conduit 120 via the pilot operated shut-off valve whose pilot pressure port is in fluid communication with the control port. of the downward pressure control valve 140 so that the upward pressure is only applied when the downward pressure exceeds a threshold. In such embodiments, the pilot operated shut-off valve is preferably housed in the manifold body. [0042] In other modalities of the downforce controller 100 and downforce controller 500, the downward pressure control valve 140 and / or the upward pressure control valve 740 and / or the downward pressure control valve individual elevation 140-1 are replaced by manually operated pressure relief and reduction valves, so that the user can manually select the elevation and / or downward pressure applied to each row unit 200. [0043] In still other modalities of the downforce controller 100, a spring is incorporated into the lifting chamber 134 so that the spring is compressed as the stem 170 extends. A spring base is preferably adjustable from the outside of the cylinder (for example, by a lockable sliding mechanism that supports an annular ring on which the spring rests) so that the user can adjust the compression and reaction force of the spring as the rod extends. In such embodiments, the duct 120 and the elevation control passage 116 are preferably suppressed. DIAGNOSTIC METHODS [0044] In the event of a fluid leak in one of the cylinders 130, monitor 310 is preferably configured to perform a 18/19 or more diagnostic procedures to identify the leaking cylinder. [0045] In a first diagnostic process, monitor 310, preferably, commands a zero or small pressure to each of the downward pressure control valves 140 and commands an upward pressure to the upward pressure control valve 740, theoretically sufficient (ie, no system leak) to raise all 200 tier units. Monitor 310 preferably alerts the operator to confirm that all tier 200 units have been elevated. Monitor 310 then preferably increases the pressure commanded by each 140m downward pressure control valve, one at a time, to a pressure theoretically sufficient to withstand the elevation pressure and lower the row units 200. The monitor 310 preferably alerts the operator to verify that each row unit 200 has been lowered. [0046] In a second diagnostic process, the monitor 310, preferably, commands a pressure to the elevation pressure control valve 740, sufficient to raise the units of row 200, and, simultaneously, commands a pressure to all the valves of elevation downward pressure control 140, theoretically sufficient to hold all row units 200 in a lowered position. Monitor 310 preferably alerts the operator to confirm that none of the row units 200 has risen. Monitor 310 then preferably reduces the pressure commanded to each downward pressure control valve 140, one at a time, so that each row unit 200 must rise. Monitor 310 preferably alerts the operator to verify that each row unit 200 has been raised. [0047] In alternative mode of the first and second diagnostic processes, instead of (or in addition to) alerting the operator 19/19 to verify that row units 200 have been raised or lowered, monitor 310 determines whether each row unit 200 is raised or lowered by comparing the signal received from each downforce sensor 362 to a threshold value; the threshold value preferably corresponds to a small amount of ground strength (for example, 3.73 kilograms (10 pounds)) in the row unit. [0048] The foregoing description is presented to allow a person little versed in the technique to produce and make use of the invention and is provided in the context of a patent application and its requirements. Various changes in the preferred mode of the device and the general principles and tools of the system and methods described in this document will be readily observed by persons skilled in the art. Thus, the present invention should not be limited to the modalities of the apparatus, system and methods described above and illustrated in the drawing figures, but these must be in accordance with the spirit and scope of the attached claims.
权利要求:
Claims (19) [1] 1. Downforce controller (100) for an agricultural implantation comprising: a double acting hydraulic cylinder (130) which includes a first chamber (136) and a second chamber (134), said cylinder (130) being configured so that it is coupled to an agricultural row unit (200) and an agricultural toolbar (14) for transmitting a net downward force between said agricultural toolbar (14) and said agricultural row unit (200), a first pressure on said first chamber (136) and a second pressure in said second chamber (134) has neutralizing effects on said net downward force; characterized by the fact that a collecting tube (110) coupled to said cylinder (130), said collecting tube (110) is in fluid communication with said first chamber (136); and a pressure control valve (140) supported by said collection tube (110), said pressure control valve (140) is in fluid communication with said collection tube (110) and with said first chamber ( 136); wherein said pressure control valve (140) comprises a supply port (152), a return port (154) and a control port (158) and said pressure control valve (140) is configured to establish a desired pressure in said control port (158); and wherein said pressure control valve (140) is supported by said collecting tube (110). [2] 2. Downforce controller (100), according to claim 1, characterized by the fact that said control valve Petition 870190072150, of 7/29/2019, p. 5/14 2/6 pressure trolley (140) is configured to maintain any one of a continuous pressure range in said first chamber (136). [3] Downforce controller (100) according to claim 2, characterized in that said collecting tube (110) includes a neutralizing pressure control passage (116) in fluid communication with said second chamber (134 ). [4] 4. Downforce controller (100), according to claim 3, characterized by the fact that said neutralizing pressure control passage (116) is in fluid communication with a neutralizing pressure control valve (740), being that said neutralizing pressure control valve (740) is mounted on the outside of said row unit (200). [5] 5. Downward force controller (100), according to claim 4, characterized by the fact that said neutralizing control passage (116) is in fluid communication with a second neutralizing pressure control passage (116) of a second downforce controller (100-2), said second downforce controller (100-2) being coupled to a second row unit (200), and additionally includes a neutralizing pressure hose between rows (416) which extends between the downforce controller (100) and the second downforce controller (100-2), said neutralizing pressure hose between rows (416) being supported by said downforce controller (100) and the said second downforce controller (100-2). [6] 6. Downforce controller (100), according to claim 5, characterized by the fact that said pressure control valve (140) and said neutralizing pressure control valve (740) are in electronic communication with a electronic controller (310), and said electronic controller (310) is configured to generate a first signal that corresponds to a pressure Petition 870190072150, of 7/29/2019, p. 6/14 3/6 desired in said pressure control valve (140), said electronic controller (310) being configured to generate a second signal that corresponds to a desired pressure in said neutralizing pressure control valve (740). [7] 7. Downforce controller, according to claim 4, characterized by the fact that said pressure control valve (140) and said neutralizing pressure control valve (740) are in electronic communication with an electronic controller ( 310), said electronic controller (310) being configured to generate a first signal that corresponds to a desired pressure in said pressure control valve (140), said electronic controller (310) being configured to generate a second signal that corresponds to at a desired pressure in said neutralizing pressure control valve (740). [8] Downforce controller (100), according to claim 1, characterized in that said collecting tube (110) includes a supply passage (112) in fluid communication with said supply port (152), said collecting tube (110) including a return passage (114) in fluid communication with said return port (154). [9] Downforce controller (100), according to claim 8, characterized in that said collecting tube (110) includes a connection passage (111) in fluid communication with said control port (158), said control passage (111) also being in fluid communication with said first chamber (136). [10] 10. Downforce controller according to claim 9, characterized in that said supply passage (112) is in fluid communication with the second supply passage (112) of a second downforce controller (100- 2), said second downforce controller (100-2) Petition 870190072150, of 7/29/2019, p. 7/14 4/6 being coupled to a second row unit (200). [11] 11. Downforce controller (100) according to claim 10, characterized in that it additionally includes a supply hose between rows (412) that extends between said downforce controller (100) and said second downforce controller (100-2), said inter-row supply hose (412) supported by said downforce controller (100) and said second downforce controller (100-2). [12] Downforce controller (100) according to claim 10, characterized in that said return passage (114) is in fluid communication with a second return passage (114) of said second downforce controller (100-2). [13] 13. Downforce controller (100), according to claim 1, characterized by the fact that said pressure control valve (140) is substantially parallel to said cylinder (130). [14] 14. Downforce control system (400) for an agricultural implantation, comprising: a first downforce controller (100-1) that includes a first pressure control valve (140), said first pressure control valve (140) that is supported by said first downforce controller (100-1) , said first pressure control valve (140) being in fluid communication with a first collecting tube (110), said first collecting tube (110) being coupled to a first actuator (130) having a first chamber (136) and a second chamber (134), said first pressure control valve (140) being in fluid communication with each of said first chambers (136); a second downforce controller (100-2) that Petition 870190072150, of 7/29/2019, p. 8/14 5/6 includes a second pressure control valve (140), said second pressure control valve (140) being supported by said second downforce controller (100-2), said second pressure control valve ( 140) being in fluid communication with a second collecting tube (110), said second collecting tube (110) is coupled to a second actuator (130) which has a third chamber (136) and a fourth chamber (134), said second pressure control valve (140) being in fluid communication with said third chamber (136); characterized by the fact that a third pressure control valve (740) in fluid communication with said second chamber (134) and said fourth chamber (134); and an electronic controller (310), said electronic controller (310) being in electrical communication with said first pressure control valve (140), said second pressure control valve (140) and said third control valve pressure (740), said electronic controller (310) being configured to generate a first signal that corresponds to a desired pressure in said first pressure control valve (140), said electronic controller (310) being configured to generate a second signal corresponding to a desired pressure on said second pressure control valve (140), said electronic controller (310) is configured to generate a third signal corresponding to a desired pressure on said third pressure control valve (740 ). [15] 15. Downforce control system (400) according to claim 14, characterized in that said third pressure control valve (740) is mounted separately from said first downforce controller (100-1) and separated from said second downforce controller (100-2). [16] 16. Down force control system (400), from Petition 870190072150, of 7/29/2019, p. 9/14 6/6 according to claim 14, characterized in that it additionally includes a supply hose between the rows (412) that extends between said first downforce controller (100-1) and said second pressure controller downforce (100-2), said supply hose between rows (412) being supported, at a first end, by said first downforce controller (100-1) and said supply hose between rows (412) is supported, at a second end, by said second downforce controller (100-2). [17] 17. Down force control system (400), according to claim 16, characterized by the fact that said supply hose between rows (412) is in fluid communication with said first pressure control valve (140) and said second pressure control valve (140). [18] 18. Down force control system (400) according to claim 17, characterized in that it additionally includes a second hose (416) which extends between said first down force controller (100-1) and the said second downforce controller (100-2), said second hose (416) being supported, at a first end, by said first downforce controller (100-1) and said second hose (416) ) is supported, at a second end, by said second downforce controller (100-2) and said second hose (416) is in fluid communication with said second chamber (134) and said fourth chamber (134 ). [19] 19. Down force control system (400), according to claim 18, characterized by the fact that said first pressure control valve (140) is supported by said first collector tube (110) and said being second control valve (140) is supported by said second collecting tube (110).
类似技术:
公开号 | 公开日 | 专利标题 BR112015001529B1|2020-04-14|control system and downforce controller for agricultural implantation ES2593062T3|2016-12-05|Device, systems and methods for controlling the lowering force in row units BR102016022623A2|2017-09-26|SEWING MACHINE BR112019021234A2|2020-05-12|METHOD FOR PREVENTING THE DEVIATION OF AN AGRICULTURAL IMPLEMENT BR122019023588B1|2021-02-17|method for transferring an implement weight AU2022201164A1|2022-03-17|Integrated implement downforce control systems, methods, and apparatus BR112020010595A2|2020-11-10|fluid control system
同族专利:
公开号 | 公开日 EP3729933B1|2022-02-02| US9879702B2|2018-01-30| EP2876992B1|2017-04-12| US20170356474A1|2017-12-14| AU2020256333A1|2020-11-12| AU2020256334B2|2022-01-13| LT2876992T|2017-05-10| WO2014018716A1|2014-01-30| CA3110056A1|2014-01-30| EP3725141A1|2020-10-21| AR095452A1|2015-10-21| US20160040692A1|2016-02-11| AU2020256334A1|2020-11-12| LT3202245T|2020-10-12| EP3202245A1|2017-08-09| EP2876992A4|2016-02-17| US9144189B2|2015-09-29| US10443631B2|2019-10-15| EP3725142A1|2020-10-21| AU2019246891A1|2019-10-31| CA3110058A1|2014-01-30| US20180163752A1|2018-06-14| EP3202245B1|2020-09-02| EP3729933A1|2020-10-28| US20150271985A2|2015-10-01| AU2013295762A1|2015-02-12| AU2020256333B2|2022-01-13| ZA201500483B|2015-12-23| US9746007B2|2017-08-29| ES2818723T3|2021-04-13| AU2017228621B2|2019-07-11| US20150176614A1|2015-06-25| HUE033146T2|2017-11-28| US10359062B2|2019-07-23| UA117811C2|2018-10-10| CA2879725C|2021-04-13| AU2017228621A1|2017-10-05| EP3725142B1|2021-12-08| AU2013295762B2|2017-10-05| ES2627828T3|2017-07-31| AU2019246891B2|2020-10-01| BR112015001529A2|2017-07-04| US20140026748A1|2014-01-30| CA2879725A1|2014-01-30| EP2876992A1|2015-06-03|
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法律状态:
2018-03-06| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]| 2018-03-13| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]| 2018-03-20| B06I| Publication of requirement cancelled [chapter 6.9 patent gazette]|Free format text: ANULADA A PUBLICACAO CODIGO 6.6.1 NA RPI NO 2462 DE 13/03/2018 POR TER SIDO INDEVIDA. | 2019-05-28| B06T| Formal requirements before examination [chapter 6.20 patent gazette]| 2020-02-04| B09A| Decision: intention to grant [chapter 9.1 patent gazette]| 2020-03-17| B09W| Correction of the decision to grant [chapter 9.1.4 patent gazette]|Free format text: RETIFICA-SE O DEFERIMENTO NOTIFICADO NA RPI 2561 DE 04/02/2020. | 2020-04-14| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 25/07/2013, OBSERVADAS AS CONDICOES LEGAIS. |
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申请号 | 申请日 | 专利标题 US201261675678P| true| 2012-07-25|2012-07-25| PCT/US2013/051968|WO2014018716A1|2012-07-25|2013-07-25|Integrated implement downforce control systems, methods, and apparatus| 相关专利
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