The invention relates to the field of limiting, and discloses a lifting limiting device, a limiting method and an automatic guide vehicle. The lifting limiting method comprises the steps that whether a limiting sensor is in a triggered state or not is judged; wherein the limiting sensor comprises an upper limiting sensor and/or a lower limiting sensor; if the limiting sensor is in a non-triggering state, acquiring an output current value of a driver, and recording the output current value; if the output current value is smaller than a threshold value, fitting an actual load current curve according to the recorded output current value; judging whether the curvature value change of the actual load current curve meets a preset condition or not; and if the curvature value change of the actual load current curve meets a preset condition, the working state of the lifting motor is adjusted. Therefore, according to the lifting limiting method, the whole mechanism can be protected when the limiting sensor fails, and the service life of the mechanism is prolonged.
本发明涉及限位领域,公开一种举升限位装置、限位方法及自动导向车。一种举升限位方法包括:判断限位传感器是否处于触发状态;其中所述限位传感器包括上限位传感器和/或下限位传感器;若所述限位传感器处于未触发状态,获取驱动器的输出电流值,并记录;若所述输出电流值小于阈值,依据记录的所述输出电流值拟合实际负载电流曲线;判断所述实际负载电流曲线的曲率值变化是否满足预设条件;若所述实际负载电流曲线的曲率值变化满足预设条件,调整举升电机的工作状态。因此,上述举升限位方法可以在限位传感器失效时保护整体机构,延长机构的使用寿命。
Lifting limiting device, limiting method and automatic guide vehicle
一种举升限位装置、限位方法及自动导向车
2024-02-27
Patent
Electronic Resource
Chinese
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |
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