• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Hydraulic drive system for augers of towed agricultural machinery, intended for mixed feed for livestock, which is presented, an electronic control (1), with emergency stop button (2) and external connections (3), located in the towing vehicle (5), associated with a hydraulic device (4), positioned on the towed agricultural machinery (7), said hydraulic device (4) being coupled through cardan connection (11 and 12), on the one hand to the intake of force (6) of the towing vehicle (5) and on the opposite side to the mechanical movement transmission system (8) of the augers (9) of the towed agricultural machinery (7), making possible the continuous selection of any possible speed between "zero" and the maximum achievable by the ratio of displacements between the hydraulic pumps (14), the hydraulic motors (15), included in the hydraulic device (4), without the need to stop the power take-off (6) of the rowing vehicle lcador (5). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2556379A2
    申请号:ES201431064
    申请日:2014-07-14
    公开日:2016-01-15
    发明作者:Fernando Torres Aso；Ramón MALLADA ALBIOL
    申请人:Grupo Tatoma SL；
    IPC主号:
    专利说明:

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    DESCRIPTION
    Hydraulic drive system for towed agricultural machinery augers.
    Object of the invention
    The present specification refers, as its title indicates, to a hydraulic drive system for towed agricultural machinery augers, intended for mixing feed for livestock, characterized by comprising an electronic control, with emergency stop button and external connections , located in the towing vehicle, associated with a hydraulic device, positioned in the towed agricultural machinery, said hydraulic device being coupled through cardan, on the one hand to the power take-off of the towing vehicle and on the side opposite to the transmission system of movement of the augers of the towed agricultural machinery.
    The object of the invention is to adapt the revolutions of the power take-off of the towing vehicle to the working revolutions of the hydraulic device, driving the operation of the augers, of the towed agricultural machinery, through the movement transmission system, no need to stop the power take-off of the towing vehicle.
    Background of the invention
    Currently, the vast majority of speed changes require the tug of the tug to take place in order to make the change, offering only the possibility of choosing between two or three preset changes and the case of being able to make the change without having to stop the The utilization of a mechanical system of gears and clutches that, in addition to having only a finite number of predetermined ratios, requires a high cost at the maintenance and breakdown level.
    In US20100195433, WO02074425 and WO031003820 different vertical mixers are described with important variations in their augers, to facilitate their work, but with the drawback mentioned above, since they do not have means to regulate speed variations during operation. , by not having a connection device that prevents the stoppage of the power take-off of the towing vehicle.
    Description of the invention
    To solve the current problem, a hydraulic drive system has been devised for augers of towed agricultural machinery characterized by comprising an electronic control with stop button and external connections, located in the towing vehicle, associated with a hydraulic device, positioned in towed agricultural machinery, comprising:
    • a cardan connection to the power take-off of the towing vehicle
    • a cardan connection to mechanical auger transmission system
    • a multiplier
    • one or more hydraulic pumps with fixed or variable flow
    • one or more hydraulic pump controllers
    • one or more fixed or variable displacement hydraulic motors
    • Hydraulic pump displacement position transducer
    • hydraulic pump working pressure transducer
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    • hydraulic motor rotational speed transducer
    • security valve
    • independent oil tank
    • oil cooler
    • oil filter
    The hydraulic device additionally comprises a connection for auxiliary services with its hydraulic pump, intended for the direct connection of external devices on the hydraulic device, without the need to couple them in the towing vehicle.
    The number of hydraulic pumps of fixed or variable flow and hydraulic motors of fixed or variable displacement varies, depending on the number of augers associated with agricultural machinery, always maintaining the same proportion of both pumps and engines.
    The working capacity of the hydraulic device offers the following work combinations
    • one or more fixed flow hydraulic pumps with one or more variable displacement hydraulic motors, or
    • one or more variable flow hydraulic pumps with one or more fixed displacement hydraulic motors, or
    • one or more hydraulic pumps of variable flow with one or more hydraulic motors of variable displacement.
    These combinations offer a great versatility, since to be able to vary the speed of work, so much of the pumps as of the motors to a maximum sufficiently adequate value, can give answer to needs of specific speed for different types of vehicles of drag.
    From the electronic control the selection of the different working modes is carried out, so that the power of the tugboat to be used can be limited, which allows the mixer to be used with smaller tugs without loss in the quality of the mixture even if the time to obtain it, optimizing the mixing and unloading times and selecting the working speeds according to the emitted signals.
    The system that is recommended is applicable to both vertical dragged mixers and horizontal dragged mixers with one several augers that are connected to a towing vehicle as a source of energy, being able to adapt to any existing agricultural mixer machinery.
    The system has safety means, since from the electronic control, the movement of the augers can be stopped by means of an emergency stop button.
    It also offers great security the absence of mechanical elements of union between the tow vehicle and the augers, which allows, through the use of safety valves, coupled in the hydraulic device, protection against mechanical breakage of the tow vehicle and greater simplicity and save on system maintenance.
    The operation of the hydraulic drive system for towed agricultural machinery augers is started by activating the power take-off of the towing vehicle, connected to the hydraulic device, directly activating the multiplier, which starts to turn and transmits the revolutions to the fixed or variable hydraulic pump , initially with the regulation of displacement "zero", not receiving signal from the electronic control, so the hydraulic motor
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    fixed or variable, does not rotate and there is no transmission of movement to the augers of agricultural machinery.
    The signal is sent from the electronic control so that the movement of the augers begins, depending on the external signals received and the setpoints from the displacement position transducer of the hydraulic pump, working pressure transducer of the pump Hydraulic and rotational speed transducer of the hydraulic motor, the electronic control sends a signal to the control of the hydraulic pump to achieve an adequate flow, and consequently an adequate revolutions to the hydraulic motor.
    When the mixer loading process begins, the pressure increases, there being no variation in the working speed, while it is below the established setpoint signal.
    At a certain time when the pressure exceeds the setpoint signal, the electronic control sends a signal to the pump control and the speed is reduced, continuing with the load and following the same logic. When the process of unloading the mixer hopper begins, the auger speed follows the reverse pattern, allowing constant variation of speeds, without the need to stop the power take-off of the towing vehicle.
    Advantages of the invention
    This hydraulic drive system for augers of towed agricultural machinery that is presented, provides multiple advantages over the systems currently used, the most important being that of varying the speed of the augers without having to stop the power take-off of the towing vehicle, enabling the continuous selection of any possible speed between zero and the maximum attainable by the ratio of displacements between the pumps, the motors and the installed kinematic chain.
    In addition, as an important advantage, this system is applicable to both vertical dragged mixers and horizontal dragged mixers with one or more augers that are connected to a tugboat as a source of energy, and can be adapted over existing mixers.
    Another advantage of the most important is that the absence of mechanical union elements between the towing vehicle and the augers, allows, through the use of safety valves, coupled in the hydraulic device, protection against mechanical breakage of the towing vehicle and greater simplicity and economy in the maintenance of the system.
    As an important advantage, add that the system has an electronic control that allows the selection of several working modes, so that the power of the towing vehicle to be used can be limited, which allows using a mixer with a smaller towing vehicle, without lost in the quality of the mixture although the time to obtain it is penalized, optimize the mixing and unloading times and select the cutting, mixing and unloading speeds based on external signals or depending on the farmer's criteria.
    Description of the figures
    To better understand the purpose of the present addition, a preferential practical embodiment of the same has been represented in the attached plan
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    Figure -1- shows an elevation view of a mixer coupled to a towing vehicle, incorporating a current connection system.
    Figure -2- shows an elevation view of a mixer coupled to a towing vehicle, incorporating the new connection system.
    Figure -3- shows a schematic view of the hydraulic drive system for towed agricultural machinery augers.
    Preferred Embodiment of the Invention
    The constitution, characteristics and procedure of the hydraulic drive system for towed agricultural machinery augers may be better understood with the following description made with reference to a preferred mode of execution, shown in the attached figures.
    As can be seen in Figure 1, a dragged mixer (7) is shown, coupled to a towing vehicle (5) incorporating a current connection system (8), consisting of a group or two-speed gearbox with or without neutral and manual, cable or hydraulic actuation, it is necessary to stop the power take-off of the tugboat to make changes in working speeds.
    The towing vehicle (5) with the power take-off (6), coupled to the group or two-speed gearbox with or without neutral and manual operation, by cable or hydraulic (8) is shown.
    A mixer (7) dragged with a mechanical movement transmission system (8) from the power take-off (6) of the tug (5) to the augers (9) is also indicated.
    Said transmission system (8) comprises cardan transmissions and the epicycloidal reducers connected to the augers (9) positioned inside the bowl (10) of the mixer (7).
    Figure 2 shows a dragged mixer (7), coupled to a towing vehicle (5) incorporating the new connection system, comprising an electronic control (1) with emergency stop button (2) and external connections (3 ), located on the towing vehicle (5), associated with a hydraulic device (4), positioned on the towed agricultural machinery (7).
    The mechanical movement transmission system (8) is coupled to the hydraulic device through gearboxes connected to the augers (9) to regulate the working speed with constant variation, without stopping the power take-off (6) of the towing vehicle (5).
    Also marking the augers (9) inside the bowl (10) of the mixer (7).
    Figure 3 shows the scheme of the hydraulic drive system for towed agricultural machinery augers, marking all its components:
    Electronic control (1)
    Emergency stop button (2)
    External Connections (3)
    Hydraulic device (4), configured with a working combination consisting of a hydraulic pump of variable flow with a fixed displacement hydraulic motor, comprising:
    Cardan connection (11) to the power take-off (PTO) of the tugboat,
    Cardan connection (12) to mechanical movement transmission system (8) of the augers (9)
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    Multiplier (13)
    Hydraulic variable flow pump (14)
    Control (14.1) of the variable flow hydraulic pump (14)
    Fixed displacement hydraulic motor (15)
    Hydraulic pump displacement position (16) transducer (14) Hydraulic pump working pressure transducer (17) (14)
    Speed transducer (18) of hydraulic motor rotation (15)
    Safety Valve (19)
    Independent oil tank (20)
    Refrigerator (21)
    Filter (22)
    Pump (23) for auxiliary services Auxiliary services (24)
    The hydraulic drive system for augers (9) of towed agricultural machinery (7) is connected to the power take-off (6) of the towing vehicle (5) mechanically through a connection (11), directly on the multiplier (13) , which is mechanically connected to the body of the variable hydraulic pump (14).
    The fixed displacement motor (15) is mechanically connected to the kinematic chain (8) that drives the augers (9) and by means of pressure pipes to the variable hydraulic pump (14).
    On the variable hydraulic pump (14), the control (14.1) thereof is located which, by means of transducers (16 and 17) controls the movement of the displacement variation system.
    For this, the electronic control (1) sends a signal to the control (14.1) of the variable hydraulic pump (14), once the signals received from the position (16), pressure (17) and revolutions (18) transducers are treated. of the engine (15).
    As can be seen in the diagram, the system has a safety valve (19) for the protection of both the system itself and the towing vehicle (5) and the mechanical elements of the mixer (7), an independent oil tank (20), Hydraulic oil refrigeration (21) and filter (22).
    Optionally on the variable hydraulic pump (14), another pump (23) has been connected to drive an auxiliary service connection (24), such as cylinders, belts, etc.
    The operation of the hydraulic drive system for augers (9) of towed agricultural machinery is started by activating the power take-off (6) of the towing vehicle (5), connected to the hydraulic device (4), directly activating the multiplier (13) that It starts to turn and transmits the revolutions to the fixed or variable hydraulic pump (14), initially with the “zero” displacement regulation, when no electronic control signal is received (1), so that the fixed or variable hydraulic motor (15 ), does not rotate and there is no transmission of movement to the augers (9) of the agricultural machinery.
    From the electronic control (1) the signal is sent to start the movement of the augers (9), depending on the external signals (3) received and the setpoints from the position transducer (16) of change of displacement of the hydraulic pump (14), working pressure transducer (17) of the hydraulic pump (14) and rotational speed transducer (18) of the hydraulic motor (15), the electronic control (1) sends a signal to the control ( 14.1) of the hydraulic pump (14) to achieve an adequate flow, and consequently an adequate speed to the hydraulic motor (15).
    At the beginning of the loading process of the mixer (7), the pressure increases, without variation in the working speed, while it is below the setpoint signal.
    At a certain time when the pressure exceeds the setpoint signal, the electronic control (1) sends a signal to the control (14.1) of the hydraulic pump (14) and the speed is reduced, continuing with the load and following the same logic .
    When the process of unloading the tank (10) begins, the speed of the augers (9) follows the reverse pattern, allowing constant variation of speeds, without the need to stop the power take-off (6) of the towing vehicle (5) .
    权利要求:
    Claims (1)
    [1]
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    1 - Hydraulic drive system for towed agricultural machinery augers characterized by comprising an electronic control (1) with emergency stop button (2) and external connections (3), located on the towing vehicle (5), associated with a device hydraulic (4), positioned in towed agricultural machinery (7), comprising:
    • a cardan connection (11) to the power take-off (6) of the towing vehicle (5)
    • a cardan connection (12) to a mechanical auger transmission system (9)
    • a multiplier (13)
    • one or more hydraulic pumps (14) of fixed or variable flow
    • one or more hydraulic pump controllers (14.1) (14)
    • one or more fixed or variable displacement hydraulic motors (15)
    • position transducer (16) for changing the displacement of the hydraulic pump (14)
    • working pressure transducer (17) of the hydraulic pump (14)
    • speed transducer (18) of hydraulic motor rotation (15)
    • safety valve (19)
    • independent oil tank (20)
    • oil cooler (21)
    • oil filter (22)
    2 - Hydraulic drive system for towed agricultural machinery augers, according to claim 1 characterized in that the hydraulic device (4) additionally comprises a connection for auxiliary services (24) with its hydraulic pump (23).
    3 - Hydraulic drive system for towed agricultural machinery augers, according to claim 1 characterized in that the number of hydraulic pumps (14) of fixed or variable flow and hydraulic motors (15) of fixed or variable displacement varies, depending on the number of augers (9) associated with agricultural machinery, always maintaining the same proportion of both pumps and motors.
    4 - Hydraulic drive system for towed agricultural machinery augers, according to claim 1 characterized in that the working capacity of the hydraulic device (4) is combined through one or more fixed-flow hydraulic pumps with one or more displacement hydraulic motors variable.
    5 - Hydraulic drive system for towed agricultural machinery augers, according to claim 1 characterized in that the working capacity of the hydraulic device (4) is combined through one or more hydraulic pumps of variable flow with one or more hydraulic displacement engines fixed
    6 - Hydraulic drive system for towed agricultural machinery augers, according to claim 1 characterized in that the working capacity of the hydraulic device (4) is combined through one or more hydraulic pumps of variable flow with one or more hydraulic displacement engines variable.
    类似技术:
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    US2945382A|1960-07-19|Drive arrangement for vehicles such as tractors and the like
    RU2010149059A|2012-06-10|AUXILIARY HYDRAULIC VEHICLE SYSTEM
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    ES2810400T3|2021-03-08|System comprising a mixer trailer, to mix and distribute forage, and a mechanical power transmission unit to drive the mixer trailer
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    GB1434403A|1976-05-05|Variable speed transmission
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    US2665596A|1954-01-12|Shiftless transmission
    US2302515A|1942-11-17|Power transmission unit
    CN105402349B|2018-07-17|A kind of power output system and output method for agricultural machinery
    CN204096075U|2015-01-14|Oil pressure peculiar to vessel hangs oar machine
    CN203723068U|2014-07-23|Continuously variable transmission hydraulic circuit for threshing drum of combine harvester
    US1835318A|1931-12-08|Variable speed power transmitting mechanism
    US3782224A|1974-01-01|Power transmission device
    同族专利:
    公开号 | 公开日
    ES2556379R2|2016-02-29|
    WO2016009098A1|2016-01-21|
    ES2556379B1|2017-03-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5462354A|1994-06-09|1995-10-31|Roto-Mix Enterprises, Ltd.|Livestock feed mixer|
    US6572260B2|2001-05-24|2003-06-03|Kuhn Knight Inc.|Mixer apparatus for mixing materials such as feed|
    US9010991B2|2008-03-19|2015-04-21|Kuhn North America, Inc.|Sequential start clutch for a material mixing machine|
    EP2845473B1|2013-09-10|2020-10-21|Sieplo B.V.|Mixing and dosing device and movable vehicle provided with such a mixing and dosing device|US10814297B2|2015-09-04|2020-10-27|Patz Corporation|Agricultural feed mixer with ingredient sensing automatic transmission control|
    US11185833B2|2018-05-31|2021-11-30|Kuhn North America, Inc.|Control system for a livestock feed mixer|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ES201431064A|ES2556379B1|2014-07-14|2014-07-14|HYDRAULIC DRIVING SYSTEM FOR WRENCHED AGRICULTURAL MACHINERY|ES201431064A| ES2556379B1|2014-07-14|2014-07-14|HYDRAULIC DRIVING SYSTEM FOR WRENCHED AGRICULTURAL MACHINERY|
    PCT/ES2015/070508| WO2016009098A1|2014-07-14|2015-06-30|Hydraulic actuation system for the augers of towed agricultural machinery|
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