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2. 发明公开

EP0369694A2 Laser control of excavating machine digging depth 失效
标题翻译： Laservorrichtung zur Steuerung der Baggertiefe einer Erdbewegungsmaschine。
公开(公告)号：EP0369694A2
公开(公告)日：1990-05-23
申请号：EP89311658.2
申请日：1989-11-10
申请人： SPECTRA-PHYSICS LASERPLANE, INC.
发明人： Studebaker, Robert Hershburger , Teach, Ted Lee , Kidwell, Michael Harvey
IPC分类号： E02F3/43 , E02F3/84 , E02F9/26
CPC分类号： E02F3/437 , E02F9/265 , Y10S33/21 , Y10S37/907
摘要： A method and apparatus are provided for controlling the working depth of a bucket for an excavating machine (100) having an outreach boom (102) which is pivotally attached at one end to the machine, a downreach boom (108) pivotally attached to the opposite end of the outreach boom, a digging bucket (112) pivotally attached to the end of the downreach boom opposite to that to which the outreach boom is attached, and hydraulic power cylinders (116, 118, 120) for moving the pivotally interconnected elements. A laser beam (126) is projected at a reference height and a beam sensor (128) mounted on the outreach boom (102) of the machine detects the beam (126) by means of a plurality of individual sensor locations. The angular orientation of the downreach boom (108) relative to vertical is detected by an angle sensor (134, 136, 138, 140, 142) and a microprocessor controller (150) connected to the beam sensor (128) and the angle sensor (134, 136, 138, 140, 142) repetitively defines, as a function of the angular orientation of the downreach boom (108), one of the plurality of individual sensor locations (C1-CX) as an on-grade sensor location. The microprocessor controller (150) compares the defined on-grade sensor location to the sensor location having detected the laser beam to generate an outreach boom adjustment signal representative of the movement of the outreach boom (102) which is required to maintain the bucket (112) on-grade as the downreach boom (108) is pivoted with respect to the outreach boom (102).
摘要翻译：提供了一种用于控制挖掘机（100）的铲斗的工作深度的方法和装置，所述挖掘机（100）具有一端枢转地附接到所述机器的外伸臂（102），一个可旋转地附接到所述机器的下游起重臂（108）伸出臂的末端，枢转地连接到下游牵引杆的与伸出臂附接的吊杆相对的端部的挖掘铲斗（112）以及用于移动可枢转地互连的元件的液压动力缸（116,118,120）。激光束（126）以参考高度投影，并且安装在机器的外伸臂（102）上的光束传感器（128）通过多个单独的传感器位置来检测光束（126）。通过角度传感器（134,136,138,140,142）和连接到光束传感器（128）和角度传感器（128）的微处理器控制器（150）检测下行悬臂（108）相对于垂直方向的角度定向 134,136,138,140,142）重复地将多个单独的传感器位置（C1-CX）中的一个定义为作为一级传感器位置的下游起重臂（108）的角度定向的函数。微处理器控制器（150）将所定义的一级传感器位置与已检测到激光束的传感器位置进行比较，以产生外伸起重臂调节信号，该信号代表维持铲斗（112）所需的外伸起重臂（102）的移动），因为下游起重臂（108）相对于外伸臂（102）枢转。

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