The invention discloses a bidirectional speed regulating device for an electric forklift, which is characterized in that a telescopic shaft is movably inserted into a shell, one end of the telescopic shaft penetrates through the shell to enter a multi-way valve shell and is propped against one end of a multi-way valve core, and a permanent magnet of which two opposite end magnetic poles attract each other to establish a magnetic field is embedded and pressed on one section of side wall, positioned in the shell, of the telescopic shaft; the valve core of the multi-way valve pushes the telescopic shaft to move in the shell to change a voltage signal output by the circuit board. By the adoption of the technical scheme of the linear Hall sensor and the design of the non-contact relative position of the Hall element and the permanent magnet, the component structure is more compact, the size is smaller, and layout on a vehicle body is better facilitated; the device can realize two-way speed regulation, is used for being matched with an application scene of lifting and descending power generation speed regulation control of a forklift gantry and a large-flow multi-way valve core stroke action, and is used for acquiring stroke information of the multi-way valve core during two-way operation in real time so as to realize fine control of gantry action.
本发明公开了一种电动叉车用双向调速装置,所述外壳内活动插接有伸缩轴,伸缩轴的一端穿过外壳进入多路阀壳体内与多路阀阀芯的一端相抵触,伸缩轴位于外壳内的一段侧壁上嵌压有两个相向端磁极相吸建立磁场的永磁体,通过多路阀阀芯推动伸缩轴在外壳内移动改变电路板输出的电压信号。采用直线霍尔传感器技术方案,霍尔元件与永磁体非接触的相对位置设计,使部件结构更紧凑,体积更小,更利于在车体的布局;本装置可以双向调速,用以配合叉车门架起升及下降发电调速控制及大流量多路阀阀芯行程较大的动作的应用场景,实时采集多路阀阀芯双向运行时的行程信息,实现门架动作的精细控制。
Bidirectional speed regulation device for electric forklift
一种电动叉车用双向调速装置
2022-07-29
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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