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1.发明授权
公开(公告)号：US4799625A
公开(公告)日：1989-01-24
申请号：US46011
申请日：1987-05-05
CPC分类号： A01F29/09 , A01D34/62 , A01F29/095 , A01D2101/00
摘要： Under the control of a microprocessor first and second motors alternately drive first and second ends of a shear bar for adjusting the position of the shear bar relative to cutter head. The shear bar is adjusted so that it is substantially parallel to the cutter head even though the cutter head and shear bar may not be parallel at the time the adjustment is initiated. A knock sensor is provided for sensing impacts between the cutter head and shear bar, the knock sensor output signal being converted to a digital value for controlling the adjusting sequence. A knocker is provided for inducing vibrations in the shear bar to thereby test the operability of the knock sensor and its output circuitry. The sensitivity of the adjustment system to the output of the knock sensor is set automatically before an adjustment sequence begins to account for variations in the knock sensor, its output circuitry, and "noise" vibrations induced in the shear bar by normal machine operation.
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公开(公告)号：US5444966A
公开(公告)日：1995-08-29
申请号：US191181
申请日：1994-02-03
CPC分类号： A01D75/187
摘要： An agricultural harvesting machine having feed rolls for feeding crop material along a feed path to a cutterhead which chops the crop material is provided with a metal detector for detecting ferrous metal objects passing along the feed path. The metal detector comprises a plurality of magnets and a plurality of generally planar Hall effect sensing elements. The magnets collectively produce a detection field which extends into the crop feed path. Each sensing element is disposed such that the magnetic field produced by two adjacent magnets is normal to the plane of the sensing element. In addition the sensing elements are disposed in a plurality of planes all normal to the crop feed path. However, the sensing elements are disposed in planes oriented at different angles relative to the direction of crop feed. When a ferrous metal object passes through the detection field it varies the density of the magnetic field at one or more of the transducers and the Hall effect causes an output voltage signal to be developed across the output leads. The output signal is applied through processing circuitry to a stop apparatus to stop the feed rolls. The transducers are mounted on a circuit board and the circuit board surmounts the magnets inside a housing within one of the feed rolls. An encapsulating material fills the interior of the housing.
摘要翻译： 具有供料辊的农业收获机具有用于沿切割料斗的切割机的进给路径向料斗供料的进料辊，设置有金属检测器，用于检测沿进给路径通过的铁金属物体。 金属检测器包括多个磁体和多个大致平面的霍尔效应传感元件。 这些磁体共同产生延伸进入作物馈送路径的检测场。 每个感测元件设置成使得由两个相邻磁体产生的磁场垂直于感测元件的平面。 此外，感测元件设置在与作物馈送路径垂直的多个平面中。 然而，感测元件设置在相对于作物馈送方向以不同角度定向的平面中。 当黑色金属物体通过检测场时，它会改变一个或多个换能器的磁场密度，霍尔效应会使输出电压信号在输出引线两端产生。 输出信号通过处理电路施加到停止装置以停止进给辊。 传感器安装在电路板上，并且电路板将磁体覆盖在馈送辊之一内的壳体内。 封装材料填充壳体的内部。
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公开(公告)号：US5018342A
公开(公告)日：1991-05-28
申请号：US508573
申请日：1990-04-13
IPC分类号： A01F29/09
CPC分类号： A01F29/09
摘要： In a forage harvester, a shear bar is adjusted relative to the knives of a rotating cutterhead by selectively energizing first and second motors to move one or the other end of the shear bar toward the cutterhead. A vibration sensor senses vibration of the shear bar and controls a circuit to deenergize an energized motor when vibration is induced in the shear bar. The vibration may be caused by impact of the cutterhead knives on the shear bar (a true hit) or by random noise (detected as a false hit). To discriminate between false hits and true hits, an energized motor is stopped when a first hit (true or false) is detected. A timer is set to time an interval at least as great as the time it takes the cutterhead to make one revolution, and during this interval the vibration sensor is repeatedly sampled to determine if a second hit has occurred. If a second hit is detected during the interval the first hit is assumed to be a true hit. If a second hit is not detected during the interval then the first hit is assumed to be a false hit and the deenergized motor is restarted.
摘要翻译： 在饲料收割机中，通过选择性地激励第一和第二电动机使剪切杆的一端或另一端朝向刀头移动，相对于旋转刀架的刀来调整剪切杆。 振动传感器感测剪切杆的振动，并且当在剪切杆中产生振动时，控制电路对通电电动机通电。 振动可能是由于刀刀在剪切杆上的冲击（真正的撞击）或随机噪声（被检测为假命中）引起的。 为了区分虚拟命中和真实命中，当检测到第一次命中（真或假）时，通电电机停止。 定时器被设置为至少与刀头进行一圈的时间相同的时间间隔，并且在该间隔期间，重复采样振动传感器以确定是否发生了第二次命中。 如果在间隔期间检测到第二次命中，则第一次命中被假定为真实命中。 如果在间隔期间未检测到第二次命中，则第一次命中被假设为假命中，并且重新启动断电马达。
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公开(公告)号：US4818980A
公开(公告)日：1989-04-04
申请号：US63389
申请日：1987-06-18
IPC分类号： G02F1/13357 , G06F3/033 , G06F3/048 , G09G3/36
CPC分类号： G06F3/021 , G02F1/133615 , G02F2001/133616
摘要： In one embodiment, an operator control panel includes an enclosure in which a liquid crystal display and a pair of lamps are disposed. A first reflective surface is located inside the enclosure, and a second reflective surface is located outside the enclosure. The lamps are positioned so that light rays from their filaments are projected rearwardly onto the first reflective surface and then forwardly onto the back of the liquid crystal display while other light rays from the lamp filaments are projected forwardly onto the second reflective surface and then downwardly onto the front of the control panel. In another embodiment of the operator control panel, the lamps are disposed outside the enclosure and the second reflective surface is omitted.
摘要翻译： 在一个实施例中，操作员控制面板包括其中设置有液晶显示器和一对灯的外壳。 第一反射表面位于外壳内部，第二反射表面位于外壳外部。 灯被定位成使得来自其细丝的光线向后突出到第一反射表面上，然后向前突出到液晶显示器的背面上，而来自灯丝的其它光线向前突出到第二反射表面上，然后向下 控制面板的前部。 在操作员控制面板的另一个实施例中，灯被设置在外壳的外部，并且省略了第二反射表面。
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5.发明授权公开(公告)号：US07483780B2
公开(公告)日：2009-01-27
申请号：US11487816
申请日：2006-07-17
IPC分类号： G06F7/70
摘要： An apparatus and method for calibrating the reel of an agricultural windrower, wherein a programmable control module in connection with a signal operated device in operative control of a variable displacement pump operable for controlling operation of the reel, is programmed as part of an automatic calibration routine for directing signals to the device having different values, for rotating the reel at two different speeds. The controller will then determine a characteristic algorithm or relationship between reel speed and signal value which will be predictive of reel speeds which will be achieved for a range of signal values.
摘要翻译： 一种用于校准农业开采机的卷轴的装置和方法，其中可编程控制模块与可操作控制卷轴的操作的可变排量泵的信号操作装置相连，被编程为自动校准程序的一部分 用于将信号引导到具有不同值的装置，用于以两种不同的速度旋转卷轴。 然后，控制器将确定卷轴速度和信号值之间的特征算法或关系，这将预测将在一定范围的信号值上实现的卷轴速度。
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公开(公告)号：US4639666A
公开(公告)日：1987-01-27
申请号：US644422
申请日：1984-08-27
CPC分类号： G01V13/00
摘要： The metal detector circuitry for a forage harvester is provided with a socket for receiving a pluggable unit, the arrangement being such that a resistor in the pluggable unit is connected into the detection circuitry of a metal detector whereby the sensitivity of the metal detector may be changed by inserting into the socket a pluggable unit containing a resistor of a different value. A metal detector test assembly connected to the metal detector through the socket, provides a means for testing the sensitivity of the metal detector and its associated circuitry. The test assembly includes a signal unit which is placed adjacent the metal detector sensing unit and generates a magnetic field that is sensed by the sensing unit, and a test box with circuitry, indicators and switches for selectively checking the sensitivity of the metal detector and correct operation of its associated circuitry.
摘要翻译： 用于饲料收割机的金属检测器电路设置有用于接收可插拔单元的插座，该插座使得可插拔单元中的电阻器连接到金属检测器的检测电路中，从而可以改变金属检测器的灵敏度 通过在插座中插入包含不同值的电阻器的可插拔单元。 通过插座连接到金属检测器的金属检测器测试组件提供了一种用于测试金属检测器及其相关电路的灵敏度的手段。 测试组件包括信号单元，该信号单元放置在金属检测器感测单元附近并产生由感测单元感测的磁场，以及具有电路，指示器和开关的测试盒，用于选择性地检查金属检测器的灵敏度并校正 其相关电路的操作。
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公开(公告)号：US4924405A
公开(公告)日：1990-05-08
申请号：US333152
申请日：1989-04-04
IPC分类号： A01F15/08
CPC分类号： A01F15/0833 , Y10S56/15
摘要： A potentiometer is driven by one of the serpentine arm assemblies used to maintain apron tension during formation of a round bale so that the output of the potentiometer continuously provides an indication of the size of a bale being formed in the baler. A microprocessor based control circuit senses the output of the potentiometer, converts it to a digital value, and compares the digital value with a value representing a desired bale size. When the two values are equal, the microprocessor computes the number of revolutions of a net feed roll that is required to wrap the bale a preselected number of times, energizes the net feed roll mechanism to feed net into the bale forming chamber, and counts the revolutions of the net feed roll. When the required amount of net has been dispensed, the microprocessor stops the net feed roll and activates a mechanism to cut the net. The size of a "full bale" is selected by actuating keys on a control panel. An offset is automatically provided to compensate for wear in the apron mechanism affecting the "zero" setting of the bale size sensor. The system permits signalling the operator to steer left or right along a windrow to control bale shape as the bale being formed in the chamber increases in diameter, the signalling rate being non-linear with respect to bale diameter.
摘要翻译： 用于在形成圆包期间保持围裙张力的蛇形臂组件中的一个驱动电位计，使得电位器的输出连续地提供打包机中形成的捆包的大小的指示。 基于微处理器的控制电路感测电位器的输出，将其转换为数字值，并将数字值与表示所需捆包尺寸的值进行比较。 当这两个值相等时，微处理器计算将包装预先选定次数所需的净进给辊的转数，使净进给辊机构通电，将进料网进入捆包形成室，并计数 净送料辊的转数。 当已经分配所需的净量时，微处理器停止净进给辊并启动切割网的机构。 通过控制面板上的按键选择“全包”的大小。 自动提供偏移以补偿影响捆包尺寸传感器“零”设置的围裙机构的磨损。 该系统允许指示操作者沿着料卷向左或向右转动以控制捆包形状，因为在腔室中形成的捆包直径增加，信号速率相对于捆包直径是非线性的。
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8.发明授权Apparatus for dispensing a substance onto a crop material at a controlled rate 失效用于以受控的速率将物质分配到作物材料上的装置
公开(公告)号：US4918910A
公开(公告)日：1990-04-24
申请号：US313427
申请日：1989-02-22
IPC分类号： A01F15/08
CPC分类号： A01F15/0816 , Y10S56/05 , Y10S56/15
摘要： Apparatus for dispensing a preservative or other substance, in solid or liquid form, onto a crop material being baled, the substance being dispensed onto the crop material before it is baled at a rate which is dependent on the moisture content of the crop material and the bulk rate of flow of crop material through the baler. The apparatus, which may be mounted on a square baler or a round baler, includes a first sensor for sensing the moisture content of the crop material and producing a first signal, a second sensor for producing an output signal indicative of the bulk rate of corp flow through the baler, and a control circuit responsive to the first signal and the second signal for producing a pulse width modulated signal for controlling the speed of a motor. The motor controls the rate at which the substance is dispensed from a container onto the crop material.
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公开(公告)号：US4855924A
公开(公告)日：1989-08-08
申请号：US49874
申请日：1987-05-14
IPC分类号： A01F15/08
CPC分类号： A01F15/0833
摘要： A potentiometer is driven by one of the serpentine arm assemblies used to maintain apron tension during formation of a round bale so that the output of the potentiometer continuously provides an indication of the size of a bale being formed in the baler. A microprocessor based control circuit senses the output of the potentiometer, converts it to a digital value, and compares the digital value with a value representing a desired bale size. When the two values are equal, the microprocessor computes the number of revolutions of a net feed roll that is required to wrap the bale a preselected number of times, energizes the net feed roll mechanism to feed net into the bale forming chamber, and counts the revolutions of the net feed roll. When the required amount of net has been dispensed, the microprocessor stops the net feed roll and activates a mechanism to cut the net. The size of a "full bale" is selected by actuating keys on a control panel. An offset is automatically provided to compensate for wear in the apron mechanism affecting the "zero" setting of the bale size sensor. The system permits signalling the operator to steer left or right along a window to control bale shape as the bale being formed in the chamber increases in diameter, the signalling rate being non-linear with respect to bale diameter.
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公开(公告)号：US4344074A
公开(公告)日：1982-08-10
申请号：US250510
申请日：1981-04-02
CPC分类号： G01V3/08 , A01D75/187 , Y10S56/15
摘要： Metal detectors having parallel magnetic fields produce signals which vary depending upon the shape and orientation of a metal object passing through the field. An improved metal detector sensor includes a magnet of special configuration having a multi-directional magnetic field resulting in a detector which is insensitive to orientation of the detected metal. One embodiment of the magnet is a pattern of cylindrical poles with the opposing pole central to the cylinder, thus creating a multiplicity of radially extending magnet fields. An alternate embodiment of the invention is an offset pattern of opposite poles which create two groups of fields, each at an angle to the general direction of movement of the material fed into the machine.
摘要翻译： 具有平行磁场的金属检测器产生根据通过场的金属物体的形状和取向而变化的信号。 改进的金属检测器传感器包括具有多方向磁场的特殊结构的磁体，导致检测器对检测到的金属的取向不敏感。 磁体的一个实施例是圆柱形磁极的图案，其中相对的磁极中心到气缸，从而产生多个径向延伸的磁场。 本发明的替代实施例是相反磁极的偏移图案，其产生两组磁场，每组磁场与馈送到机器中的材料的大体运动方向成一角度。
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