The invention provides a digital jack based on an external stroke measuring device. The digital jack comprises a jack body, the stroke measuring device and a connecting rope. The jack body comprises a cylinder body and a piston rod, the cylinder body is provided with a piston cavity, the first end of the piston rod is arranged in the piston cavity, the second end of the piston rod is located on the outer side of the piston cavity, and the piston rod can move relative to the cylinder body in the extending direction of the cylinder body; the first shell is provided with a first cavity, the first cavity is communicated with the piston cavity, the measuring piece is arranged in the first cavity, the first end of the connecting rope is connected with the first end of the piston rod, and the second end of the connecting rope is connected with the measuring piece, so that when the piston rod moves in the extending direction of the cylinder body, the measuring piece can measure the displacement amount of the connecting rope; therefore, the displacement of the piston rod is determined according to the displacement of the connecting rope. The digital jack has the advantages of being convenient to maintain and good in measurement accuracy.

    本发明提出一种基于外置行程测量装置的数字千斤顶,所述数字千斤顶包括:千斤顶本体、行程测量装置和连接绳。千斤顶本体包括缸体和活塞杆,缸体具有活塞腔,活塞杆的第一端设在活塞腔内,活塞杆的第二端位于活塞腔的外侧,活塞杆相对于缸体沿缸体的延伸方向可移动,行程测量装置包括第一壳体和测量件,第一壳体与缸体相连,第一壳体具有第一空腔,且第一空腔与活塞腔连通,测量件设在第一空腔内,连接绳的第一端与活塞杆的第一端相连,连接绳的第二端与测量件相连,以便活塞杆沿缸体的延伸方向移动时,测量件可测量连接绳的位移量,从而根据连接绳的位移量确定活塞杆的位移量。本发明实施例的数字千斤顶具有维修方便,测量准确性好的优点。


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    Titel :

    Digital jack based on external stroke measuring device


    Weitere Titelangaben:

    一种基于外置行程测量装置的数字千斤顶


    Beteiligte:
    WEN ZHIGUO (Autor:in) / REN HUAIWEI (Autor:in) / MA YING (Autor:in) / ZHANG DESHENG (Autor:in) / ZHOU JIE (Autor:in) / ZHAO SHUJI (Autor:in)

    Erscheinungsdatum :

    2023-05-26


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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 / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen



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