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    • 3. 发明授权
    • Apparatus and method for changing the position of a mowing mechanism
    • 用于改变割草机构位置的装置和方法
    • US4942724A
    • 1990-07-24
    • US321595
    • 1989-03-09
    • Norbert DiekhansWerner FitznerHeinrich Ostrup
    • Norbert DiekhansWerner FitznerHeinrich Ostrup
    • A01D41/14A01D75/28
    • A01D75/287A01D41/141
    • A positional regulation of a mowing mechanism is effected in terms of height as a function of a ground pressure signal (SB) and in terms of swiveling in the transverse direction as a function of lateral ground clearance signals (SL, SR), the adjusting signals being carried to hydraulic valves (VT, VH; VL, VR).The goal is to increase the accuracy and freedom from fluctuation in the course of the mowing mechanism cutting height.The ground clearance signals (SL, SR) are used in proportion with the ground pressure signal (SB) for vertical position regulation. A linkage of these signals (SL, SR, SB) with further transducer signals and a method for automatic adaptation of the regulating characteristic by varying the hystereses and idle times of the regulators (V1, V1) is disclosed.The regulating apparatus is used in harvesting and threshing combines when low-height crops are to be mowed and when the ground is bumpy and soft.
    • 根据作为地面压力信号(SB)的函数的高度,以横向离地间隙信号(SL,SR)为函数在横向上的旋转方面实现割草机构的位置调整,调节信号 被携带到液压阀(VT,VH; VL,VR)。 目的是提高割草机械切割高度的精度和自由度。 离地间隙信号(SL,SR)与地面压力信号(SB)成比例地用于垂直位置调节。 公开了这些信号(SL,SR,SB)与其他传感器信号的联动,以及通过改变调节器(V1,V1)的滞后和空闲时间自动调整调节特性的方法。 调节装置用于收割和脱粒时,当低高度作物被割草时,以及当地面颠簸和柔软时。