METHODS AND SYSTEM FOR DETECTING WINDING FAULTS IN A GENERATOR WITH PARALLEL WINDINGS
    1.
    发明申请
    METHODS AND SYSTEM FOR DETECTING WINDING FAULTS IN A GENERATOR WITH PARALLEL WINDINGS 有权
    用于检测具有平行绕组的发电机中的绕组故障的方法和系统

    公开(公告)号:US20080042683A1

    公开(公告)日:2008-02-21

    申请号:US11831366

    申请日:2007-07-31

    IPC分类号: G01R31/34 H02H7/06

    CPC分类号: H02H7/06 H02H1/0092

    摘要: A method for detecting stator ground faults in a generator is described. The method includes receiving a neutral voltage signal from a neutral point of a stator, receiving a plurality of terminal voltage and current signals from the stator, deriving a magnitude of a harmonic component from the neutral voltage signal, deriving a total complex power from the terminal voltage and current signals, calculating an expected value of a harmonic based on the complex power at a first time and a plurality of values of the complex power, where the values of the complex power are measured at times before the first time, and comparing the expected value and a measured value of the harmonic.

    摘要翻译: 描述了一种用于检测发电机中定子接地故障的方法。 该方法包括从定子的中性点接收中性电压信号,从定子接收多个端子电压和电流信号,从中性电压信号导出谐波分量的幅度,从终端导出总复合功率 电压和电流信号,基于第一时间的复数功率计算谐波的期望值,以及复数功率的多个值,其中复数功率的值在第一时间之前被测量,并将 预期值和谐波的测量值。

    Method and apparatus for automatically controlling the soil penetration
depth of zone tillage coulters and the like
    2.
    发明授权
    Method and apparatus for automatically controlling the soil penetration depth of zone tillage coulters and the like 失效
    自动控制区域耕作机等土壤渗透深度的方法和装置

    公开(公告)号:US5653292A

    公开(公告)日:1997-08-05

    申请号:US375544

    申请日:1995-01-19

    IPC分类号: A01B63/114 A01C7/20 F01B25/26

    CPC分类号: A01C7/203 A01B63/114

    摘要: The zone tillage coulters on a drilling or planting implement are maintained at an essentially constant running depth by control apparatus that includes a programmed microprocessor-based controller and a hydraulic operating system that receives commands from the controller based upon inputs received from various sensors. One such sensor comprises a ground wheel which rides along the ground and swings up or down as changes in the terrain are encountered, such motions thus imparting voltage inputs to the controller which compares such inputs with previously selected data inputted by the operator. If the comparison results in a sufficiently large difference between the operator-selected data and the actual data coming from the sensor, the controller will cause a tongue cylinder to be actuated in the appropriate direction to buckle the tongue about a horizontal axis and thus either raise or lower the tongue and coulter gangs fastened thereto. Another sensor detects ground speed and inputs that information into the controller to influence the frequency of output pulses from the controller, while a third sensor detects when the machine is raised into its transport position at the end of a row so that coulters can be elevated to facilitate turn around of the machine. Adjustments can be made by the operator on the go, and manual override is also provided.

    摘要翻译: 控制装置包括基于微处理器的编程控制器和液压操作系统,该控制装置基于从各种传感器接收到的输入接收来自控制器的命令,由此在钻井或种植工具上的区域耕作机被保持在基本恒定的运行深度。 一个这样的传感器包括沿着地面骑行的地面轮,并且随着地形的变化而向上或向下摆动,这样的运动由此向控制器施加电压输入,该控制器将这些输入与操作者输入的先前选择的数据进行比较。 如果比较导致操作者选择的数据与来自传感器的实际数据之间的足够大的差异,则控制器将使舌形筒沿适当方向被致动以使舌头绕水平轴线弯曲,并因此提高 或者降低固定在其上的舌头和仓库组合。 另一个传感器检测地面速度并将该信息输入到控制器中以影响来自控制器的输出脉冲的频率,而第三传感器检测机器何时升高到其行末端的运输位置,使得库铣刀可以升高到 方便翻转机器。 操作人员随时随地进行调整,并提供手动操作。

    Universal press wheel arm assembly
    3.
    发明授权
    Universal press wheel arm assembly 失效
    通用压轮轮臂总成

    公开(公告)号:US5022333A

    公开(公告)日:1991-06-11

    申请号:US411869

    申请日:1989-09-25

    IPC分类号: A01B49/06 A01C5/06

    CPC分类号: A01C5/068 A01B49/06

    摘要: A towable, furrow opening seed planting assembly includes a mobile frame and a planting unit, the planting unit including a ground engaging opener, a seed depositing apparatus and a press wheel for covering the deposited seed with soil. A variety of different press wheels may be substituted through the use of adapters removably mounted on a universal press wheel arm whereby press wheels having different widths may be maintained in proper alignment with the furrow created by the opener for ensuring proper soil coverage and contact with the deposited seed.

    摘要翻译: 一种可拖曳的沟沟种子种植组件包括移动框架和种植单元,所述种植单元包括地面接合开启器,种子沉积设备和用于用土壤覆盖所述沉积的种子的压轮。 各种不同的压轮可以通过使用可拆卸地安装在通用压力轮臂上的适配器来代替,由此具有不同宽度的压轮可以保持与由开启器产生的沟槽适当对准,以确保适当的土壤覆盖和与 保存种子。

    Wafer Level Packaging of Materials with Different Coefficents of Thermal Expansion
    4.
    发明申请
    Wafer Level Packaging of Materials with Different Coefficents of Thermal Expansion 失效
    具有不同热膨胀系数的材料的晶圆级包装

    公开(公告)号:US20060263931A1

    公开(公告)日:2006-11-23

    申请号:US11461587

    申请日:2006-08-01

    IPC分类号: H01L21/00

    CPC分类号: H03H9/059

    摘要: An electromechanical device package includes a cap material permanently bonded to a device wafer encapsulating an electromechanical device. An intermediate material is used to bond the device and capping material together at a low temperature, and a structure including the intermediate material emanating from either the device or cap material, or both, provides an interlocking at the bonding interface. One package includes a reusable carrier wafer with a similar coefficient of thermal expansion as a mating material and a low cost cap wafer of different material than the device wafer. A method for temporarily bonding the cap material to the carrier wafer includes attaching the cap material to the carrier wafer and is then singulated to mitigate thermal expansion mismatch with the device wafer.

    摘要翻译: 机电装置封装包括永久地结合到封装机电装置的器件晶片的帽材料。 使用中间材料将装置和封盖材料在低温下结合在一起,并且包括从装置或盖材料或两者发出的中间材料的结构在接合界面处提供互锁。 一个包装包括具有与装置晶片不同材料的匹配材料和类似热膨胀系数的可重复使用的载体晶片和不同材料的低成本封盖晶片。 用于将盖材料临时粘合到载体晶片的方法包括将盖材料附接到载体晶片,然后将其分开以减轻与器件晶片的热膨胀失配。

    Seeding machine with bulk seed supply container and independent, opener-mounted metering devices
    5.
    发明授权
    Seeding machine with bulk seed supply container and independent, opener-mounted metering devices 有权
    播种机具有散装种子供应容器和独立的开启式计量装置

    公开(公告)号:US06308645B1

    公开(公告)日:2001-10-30

    申请号:US09475866

    申请日:1999-12-30

    IPC分类号: A01C506

    CPC分类号: A01C7/126

    摘要: A seeding machine has a common, bulk seed container that supplies a number of independent openers, each of which is provided with its own separate metering device. Each metering device is gravity-fed through a telescoping supply tube connected between the top of the metering device and the bottom of the seed container. Each metering device has a relative narrow metering wheel rotatable about a transverse horizontal axis that is provided with one or more rows of seed pockets on its outermost peripheral edge. As the wheel rotates upwardly through a pool of incoming seeds that have collected generally above the wheel in a seed chamber inside the metering device, the pockets become filled by gravity with seeds and then successively discharged at the bottom of the downsweep side of the wheel. Spring-loaded retaining structure along the downsweep side of the wheel keeps the seeds within their respective pockets until the pockets reach the discharge outlet at the bottom of the meter, whereupon the seeds gravitate freely from the wheel in succession and are directed to the ground.

    摘要翻译: 播种机具有通用的散装种子容器,其供应多个独立的开启器,每个独立开启器具有其自己的单独的计量装置。 每个计量装置通过连接在计量装置的顶部和种子容器的底部之间的伸缩式供应管重力馈送。 每个计量装置具有可围绕横向水平轴线旋转的相对窄的计量轮,该横向水平轴在其最外周边缘上设置有一排或多排种子囊。 当车轮向上旋转通过已经在计量装置内的种子室中大体上收集的进入的种子池时,袋子被重力与种子一起填充,然后在轮的下部扫描侧的底部连续地排出。 沿着轮的下降沿的弹簧保持结构将种子保持在它们各自的口袋内,直到袋到达仪表底部的排出口,于是种子连续地从轮子中自由地转向并被引导到地面。

    Low-profile folding marker for seed planters and the like
    6.
    发明授权
    Low-profile folding marker for seed planters and the like 失效
    用于种子播种机的低调折叠标记等

    公开(公告)号:US5573070A

    公开(公告)日:1996-11-12

    申请号:US609891

    申请日:1996-03-01

    IPC分类号: A01B69/02 A01C7/20 A01B35/32

    CPC分类号: A01B69/024 A01C7/208

    摘要: A low profile folding row marker apparatus is provided for use with an agricultural implement, such as a seed planter or the like. The apparatus includes inboard and outboard arm assemblies that are supported on the implement by a marker mount. The inboard and outboard arm assemblies are connected to the marker mount and to each other for relative pivotal movement about horizontal axes between a generally vertical storage position and a generally horizontal use position. A linkage assembly is connected between the inboard and outboard arm assemblies for controlling relative movement of the outboard arm assembly, and an actuating means is provided between the marker mount and the linkage assembly for moving the inboard and outboard arm assemblies sequentially between the storage and use positions.

    摘要翻译: 提供了一种与农业用具如种子播种器等一起使用的低剖面折叠行标记装置。 该装置包括通过标记支架支撑在工具上的内侧和外侧臂组件。 内侧和外侧臂组件连接到标记支架和彼此之间,用于围绕水平轴线在大致垂直的存储位置和大致水平的使用位置之间的相对枢转运动。 连接组件连接在内侧和外侧臂组件之间,用于控制外侧臂组件的相对运动,并且在标记支架和连杆组件之间提供致动装置,用于在存储和使用之间顺序地移动内侧和外侧臂组件 职位

    Front folding no-till drill
    8.
    发明授权
    Front folding no-till drill 失效
    前折叠免耕钻

    公开(公告)号:US5232054A

    公开(公告)日:1993-08-03

    申请号:US800985

    申请日:1991-12-02

    IPC分类号: A01B73/06

    CPC分类号: A01B73/065

    摘要: The front folding machine has a main fore-and-aft carrier frame provided with transport wheels that may be hydraulically actuated to raise and lower the frame simultaneously with the actuation of gauge wheels on a pair of transverse drill units connected to the rear of the carrier frame, thereby causing the trash cutters and openers which are carried by the drill units to raise out of the ground while the gauge wheels and transport wheels remain in ground engagement. Before folding the drill units forwardly into transport positions extending parallel to the path of travel, the drill units are raised by hydraulically operated tool bars into elevated positions in which the gauge wheels of the units are entirely off the ground and the residue cutters are high enough to clear the transport wheels of the carrier frame as the drill units are folded into the transport position. The tool bars which provide elevation for folding purposes are also provided with flotation pivots by which the drill units are connected to the tool bars so that the individual units can rock laterally about separate fore-and-aft pivots when the machine is unfolded and the gauge wheels encounter changes in terrain during field operations. Flotation limit means associated with the drill units prevent excessive rocking movement during terrain changes and also assist in the control of the drill units during raising and lowering between field and transport positions.

    摘要翻译: 前折叠机具有主要的前后托架,其具有运输轮,运输轮可以被液压地致动,以在与连接到托架的后部的一对横向钻机单元上的量轮的致动同时升高和降低框架 从而使得当测量轮和运输轮保持地面接合时,由钻机单元携带的垃圾刀和开口器从地面上升出。 在将钻机单元向前折叠到平行于行进路径延伸的运输位置之前,钻机单元由液压操作的工具杆升高到升高位置,在该位置,单元的量轮完全离开地面,并且残渣切割器足够高 以在钻机单元折叠到运输位置时清除承载架的运输轮。 提供用于折叠目的的高度的工具杆还具有浮选枢轴,钻孔单元通过该浮动枢轴连接到工具杆,使得当机器展开时,单独的单元可以围绕分离的前后枢轴横向摇摆, 车轮在野外作业中遇到地形变化。 与钻机相关联的浮选极限装置防止在地形变化期间过度的摇摆运动,并且还有助于在现场和运输位置之间的升高和降低期间控制钻机单元。

    Seed metering drive mechanism for seed planters and the like
    9.
    发明授权
    Seed metering drive mechanism for seed planters and the like 失效
    用于种子播种机的种子计量驱动机构等

    公开(公告)号:US5497715A

    公开(公告)日:1996-03-12

    申请号:US276945

    申请日:1994-07-19

    CPC分类号: A01C19/04 A01C7/102

    摘要: A metering drive mechanism is provided for use with a seed depositing implement adapted for movement across the ground. The mechanism includes a gauge wheel, an arm assembly supporting the gauge wheel for rolling engagement with the ground, and a mounting bracket on which the arm assembly pivots. The mechanism restricts upward pivoting movement of the arm assembly beyond a predetermined position, thus establishing the height of the implement. However, downward movement of the arm assembly is allowed in order to permit the gauge wheel to remain in contact with the ground at all times during travel. A spring urges the wheel against the ground with a force that remains constant, even when the predetermined position of the arm assembly relative to the bracket is changed to vary the height of the implement. The mechanism also includes an overriding clutch having a sprocket, a hub received in an opening of the sprocket for rotation relative to the sprocket, and a key supported on the sprocket for pivotal movement between a locking position and an unlocking position. A cylindrical plug of resilient material is supported on the sprocket for biasing the key toward the locking position.

    摘要翻译: 提供计量驱动机构,用于与适于在地面上移动的种子沉积工具一起使用。 该机构包括量轮,支撑用于与地面滚动接合的量规轮的臂组件,以及臂组件枢转在其上的安装支架。 机构限制了臂组件的向上枢转运动超过预定位置,从而建立了工具的高度。 然而,允许臂组件的向下运动,以便允许量规轮在行驶期间始终保持与地面接触。 即使当臂组件相对于支架的预定位置改变以改变工具的高度时,弹簧以保持恒定的力抵抗地面。 该机构还包括一个具有链轮的覆盖离合器,容纳在链轮的开口中以相对于链轮旋转的轮毂,以及支撑在链轮上的钥匙,用于在锁定位置和解锁位置之间枢转运动。 弹性材料的圆柱塞支撑在链轮上,用于将键偏压到锁定位置。

    Grain drill unit having seed firming wheel
    10.
    发明授权
    Grain drill unit having seed firming wheel 失效
    颗粒钻机具有种子紧固轮

    公开(公告)号:US5398625A

    公开(公告)日:1995-03-21

    申请号:US850559

    申请日:1992-03-13

    IPC分类号: A01C5/06

    CPC分类号: A01C5/068

    摘要: A seed firming wheel assembly is supported in close-coupled relationship with the rear portion of the paired discs of an opener to gently press deposited seeds down into the bottom of a V-shaped trench formed by the discs. The mounting arm of the assembly is configured in a manner to minimize the accumulation of mud and trash residue, while the wheel itself may take the form of a solid, circular block of ultra-high-molecular-weight polyethylene with slick sides to reduce soil adherence or a spoked, molded plastic wheel having open spaces between the spokes to permit soil pass-through.

    摘要翻译: 种子紧固轮组件以与开启器的成对盘的后部紧密耦合的关系支撑,以将沉积的种子轻轻地压入由盘形成的V形沟槽的底部。 组件的安装臂配置为尽可能减少泥浆和垃圾残留物的积聚,而轮子本身可以采取具有光滑侧面的超高分子量聚乙烯的固体圆形块体的形式,以减少土壤 粘合剂或一个成型的塑料轮,在轮辐之间具有开放空间,以允许土壤通过。