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    • 9. 发明授权
    • Method and apparatus for a high-performance hoist
    • 高性能起重机的方法和装置
    • US06241462B1
    • 2001-06-05
    • US09357205
    • 1999-07-20
    • Witaya WannasuphoprasitJ. Edward ColgateDave MeerMichael Peshkin
    • Witaya WannasuphoprasitJ. Edward ColgateDave MeerMichael Peshkin
    • B66D148
    • B66D3/18B66D3/22
    • A mechanical apparatus and method for a high performance hoist for raising and lowering a load, and control apparatus and method for controlling the hoist such that its operation is responsive and intuitive for a human operator. The mechanical apparatus provides a reel for winding a cable, a ball-screw for translating the reel, and an encoder on the reel with which the height of the payload may be monitored. Also disclosed is an operator's handle comprising a movable sleeve with a damper as well as a spring to return it to its null position. The control apparatus and method provides for a handle-nulling mode in which the payload height is servo-controlled to follow the displacement of the operator's hand grasping the handle. The control apparatus further provides a float-mode in which the payload height is responsive to the operator's forces applied directly to the payload. Further, a payload mass estimation system is provided such that the mass of the payload can be determined without waiting for a period of time to allow the payload to settle. In addition, a mode-switching algorithm for transparent switching among different control modes is also disclosed.
    • 一种用于提升和降低负载的高性能起重机的机械装置和方法,以及用于控制起重机的控制装置和方法,使得其操作对于操作者来说是响应和直观的。 机械设备提供用于卷绕电缆的卷轴,用于平移卷轴的滚珠丝杠和卷轴上的编码器,可以利用该编码器监视有效载荷的高度。 还公开了一种操作者手柄,其包括具有阻尼器的可移动套筒以及将其返回到其零位置的弹簧。 控制装置和方法提供了一种手柄归零模式,其中有效负载高度被伺服控制,以跟随操作者握住手柄的手的位移。 控制装置还提供浮动模式,其中有效负载高度响应于直接施加到有效载荷上的操作者的力。 此外,提供有效负载质量估计系统,使得能够确定有效载荷的质量而不等待一段时间以允许有效载荷沉降。 此外,还公开了用于不同控制模式之间的透明切换的模式切换算法。