The internal liquid inlet jack comprises a jack body, a pump station and a stroke measuring assembly arranged in the jack body, a push rod is arranged in the jack body, and the pump station is used for driving the push rod to stretch out and draw back. One end of the push rod is in contact with a load to push the load to move when the push rod is pushed outwards, the stroke measuring assembly comprises a stroke sensor, a magnetic ring and a guide rod, the stroke sensor is installed opposite to the other end of the push rod, an installation blind hole used for fixedly installing the magnetic ring is machined in a deep hole in the other end of the push rod, and the guide rod is arranged in the installation blind hole. One end of the guide rod is connected with the stroke sensor, the other end of the guide rod extends into the mounting blind hole and penetrates through the magnetic ring, the push rod drives the magnetic ring to move synchronously when moving, and the stroke sensor is electrically connected with the magnetic ring so as to obtain the magnetic flux change of the magnetic ring and further obtain the stroke variation of the push rod.
本发明涉及一种带行程传感器的内进液千斤顶,其包括:千斤顶本体、泵站和设置在所述千斤顶本体内部的行程测量组件,所述千斤顶本体的内部设置有推杆,所述泵站用于驱动所述推杆伸缩,进而于该推杆向外推动时其一端与载荷接触以推动该载荷移动,所述行程测量组件包括:行程传感器、磁环和导向杆,所述行程传感器与所述推杆的另一端相对安装,且所述推杆的另一端深孔加工有用于固定安装所述磁环的安装盲孔,所述导向杆的一端与所述行程传感器连接,另一端伸入所述安装盲孔内部且穿过所述磁环,所述推杆移动时带动所述磁环同步移动,所述行程传感器与所述磁环电连接进而获取该磁环的磁通量变化,进而获取所述推杆的行程变化量。
Internal liquid inlet jack with stroke sensor
一种带行程传感器的内进液千斤顶
2024-05-10
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 |
Fixing structure for stroke sensor of hydraulic support jack
European Patent Office | 2024
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