The invention discloses a reach forklift and a portal frame lifting control method, relates to the technical field of forklift driving control, and aims to solve the problems that due to the fact that the lifting speed of the reach forklift is increased, the cylinder change impact of a portal frame is large, and the whole forklift is prone to tipping over. A fork frame body sliding along the portal frame is arranged on the portal frame, a front lifting oil cylinder and a side lifting oil cylinder are further arranged on the portal frame, the front lifting oil cylinder and the side lifting oil cylinder are used for driving the fork frame body to ascend and descend and controlled by a controller, the forklift controls the front lifting oil cylinder to operate through the controller and drives the fork frame body to slide along the portal frame, and a lifting buffer switch is arranged on the portal frame. A detection piece matched with the lifting buffer switch is arranged on the fork frame body, after the lifting buffer switch detects the detection piece, the lifting buffer switch sends a detected signal to the controller, and the controller controls the front lifting oil cylinder to be lifted at a reduced speed so as to reduce the lifting speed of the fork frame body, so that the impact of replacing the front lifting oil cylinder is reduced, and the lifting efficiency of the fork frame body is improved. And shaking of the portal is reduced.

    本发明公开了一种前移式叉车及门架起升控制方法,涉及叉车驱动控制技术领域,为了解决前移式叉车因起升速度加快导致门架换缸冲击大和整机容易倾翻的问题,前移式叉车包括车体和设于车体的可升降的门架,门架上设有沿其滑动的叉架体,还设有用于驱动叉架体升降的前起升油缸和侧起升油缸,前起升油缸和侧起升油缸均由控制器控制,叉车通过控制器控制前起升油缸运行,带动叉架体沿门架滑动,门架上设有起升缓冲开关,叉架体上设有与起升缓冲开关配合的检测件,当起升缓冲开关检测到检测件后,起升缓冲开关将检测到的信号发送给控制器,通过控制器控制前起升油缸降速起升,以减小叉架体的起升速度,从而减小前起升油缸换缸的冲击,减小门架的晃动。


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    Title :

    Forward moving type forklift and portal frame lifting control method


    Additional title:

    一种前移式叉车及门架起升控制方法


    Contributors:
    ZHANG XIAOLU (author) / WANG XUQUAN (author) / WANG ZHENYU (author) / ZHANG HONGYAN (author) / LEE CHANG-HO (author) / GAO HONGPENG (author)

    Publication date :

    2024-09-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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