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    • 9. 发明授权
    • Method for moving a shearbar in a forage harvester
    • 用于移动饲料收割机中剪切杆的方法
    • US5704199A
    • 1998-01-06
    • US625448
    • 1996-03-28
    • Bert Juul Frans PaquetDirk Cyriel Andre Ameye
    • Bert Juul Frans PaquetDirk Cyriel Andre Ameye
    • A01F29/09A01D34/62
    • A01F29/095Y10S56/02Y10S56/15
    • A method for moving a shearbar (102) towards a fixed stop (109), wherein the method comprises the steps of; energizing a bidirectional motor (110/112) for driving a guide screw (106/108) to move the shearbar towards the fixed stop (109), monitoring a variable indicative of the torque or force output of the motor (110/112), limiting the torque or force output to a first maximum value, moving the shearbar (102) against the fixed stop (109) and stalling the motor (110/112) thereby, deenergizing the motor (110/112), when the resulting torque or force output reaches or exceeds the first maximum value; and energizing the motor (110/112) for moving the shearbar (102) in the opposite direction, away from the stop (109), while not limiting the torque or force output or while limiting the same to a second maximum value, which is substantially larger than the first maximum value. This method can be used in an automatic shearbar adjusting routine, wherein it is not required to rely on limit switches for precluding stalling of the motors (110/112) when the shearbar (102), engages the stop (109).
    • 一种用于将剪切杆(102)朝向固定挡块(109)移动的方法,其中所述方法包括以下步骤: 激励用于驱动导向螺杆(106/108)的双向马达(110/112)以使剪切杆朝向固定止挡(109)移动,监视指示马达(110/112)的扭矩或力输出的变量, 将扭矩或力输出限制到第一最大值,使剪力杆(102)相对于固定止动件(109)移动并使马达(110/112)停止,从而使马达(110/112)断电,当所产生的扭矩或 力输出达到或超过第一最大值; 以及使所述电动机(110/112)激励以使所述剪力杆(102)沿与所述止动件(109)相反的方向移动,同时不限制所述扭矩或力输出,或者将所述扭矩或力输出限制在第二最大值 明显大于第一最大值。 该方法可以用在自动剪切杆调节程序中,其中当剪切杆(102)接合止动件(109)时,不需要依靠限位开关来排除电机(110/112)的失速。