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    • 16. 发明申请
    • MATERIAL HANDLING MACHINE
    • 材料处理机
    • WO1995031615A1
    • 1995-11-23
    • PCT/US1995005912
    • 1995-05-10
    • CATERPILLAR INC.BROWN, David, J., B.
    • CATERPILLAR INC.
    • E02F09/20
    • E02F9/0866B60K5/00B60K5/02B60K17/00B66F9/0655
    • The machine has a chassis comprising a rigid longitudinal frame (1) whose width is less than 25 % of the overall width of the machine, excluding the wheels. A boom is pivotally mounted on the chassis. A drive arrangement (7) comprises a mechanically driven transmission (37, 39, 41) kinematically connected to an engine (34). Shafts (43, 44) kinematically connect a power output (42) mid-way along the drive arrangement (7) to final drive units on the front and rear axles. The drive arrangement is mounted at one side of the longitudinal frame (1) between the axles. The rotary axis (51) of the engine shaft lies in a vertical plane which is inclined relative to the vertical longitudinal median plane (2) of the frame (1) so that its output end is nearer to the frame (1).
    • 机器具有底盘,其包括刚性纵向框架(1),其宽度小于机器总宽度的25%,不包括轮子。 悬臂枢轴安装在底盘上。 驱动装置(7)包括运动学连接到发动机(34)的机械驱动变速器(37,39,41)。 轴(43,44)将驱动装置(7)中途的动力输出(42)连接到前轴和后轴上的最终传动单元。 驱动装置安装在轴之间的纵向框架(1)的一侧。 发动机轴的旋转轴线(51)位于相对于框架(1)的垂直纵向中间平面(2)倾斜的垂直平面中,使得其输出端更靠近框架(1)。
    • 20. 发明申请
    • RFT PIPELINE INSPECTION SYSTEM AND METHOD THEREFOR
    • RFT管道检查系统及其方法
    • WO2007005517A3
    • 2008-01-24
    • PCT/US2006025355
    • 2006-06-28
    • ARIZONA PUBLIC SERVICE COBROWN DAVID JSTOUT JOHN H
    • BROWN DAVID JSTOUT JOHN H
    • G01M99/00
    • G01N27/82
    • A system (20) and method for the inspection of a pipeline (22) is disclosed. The system (20) is made up of a plurality of flexibly coupled modular units (24) configured to pass through the pipeline (22). One modular unit (24) is a tractor unit (40) configured to propel the system (20) through the pipeline (22). Another modular unit (24) is an RFT transmission unit (42) with an excitation coil (58) configured to excite a magnetic field (112) within the pipeline (22). A third modular unit (24) is an RFT reception unit (46) incorporating a pair of adjacent differentially connected reception coils (80) and a differential instrumentation amplifier (100) affixed to a rotational mount (78). A fourth modular unit (24) is a motor unit (44) incorporating a motor (66) which rotates the rotational mount (78). The pair of reception coils (80) detects the magnetic field (112) and produces a differential detection signal which is then amplified and analyzed. An electrical cable (106) is used to provide power and/or signals to/from the system.
    • 公开了一种用于检查管道(22)的系统(20)和方法。 系统(20)由多个灵活耦合的模块单元(24)组成,其被配置成通过管道(22)。 一个模块化单元(24)是构造成通过管道(22)推进系统(20)的拖拉机单元(40)。 另一个模块化单元(24)是具有激励线圈(58)的RFT传输单元(42),其被配置成激励管线(22)内的磁场(112)。 第三模块单元(24)是RFT接收单元(46),其包括一对相邻的差分接收线圈(80)和固定到旋转座(78)的差分仪表放大器(100)。 第四模块单元(24)是包括使旋转底座(78)旋转的马达(66)的马达单元(44)。 一对接收线圈(80)检测磁场(112),并产生差分检测信​​号,然后进行放大和分析。 电缆(106)用于向/从系统提供电力和/或信号。