The invention provides a hydraulic support pushing jack for a half-well cutting coal-mining process. The hydraulic support pushing jack for the half-well cutting coal-mining process comprises a commonfoundation and two jack sets mounted on the basis of the common foundation. Oil paths of the two jack sets are independent from each other, and the two jack sets extend towards the two ends by takingthe common foundation as the center and are arranged on one straight line. The far ends of the two jack sets are connecting lugs, and the two ends of the common foundation are constitution componentsof the two jack sets correspondingly. The hydraulic support pushing jack for the half-well cutting coal-mining process achieves half-travel pushing and full-stroke support pulling from the structurallevel, and remarkably improves the control precision.
本发明提供了一种用于半截割采煤工艺的液压支架推移千斤顶,包括共用基础和基于所述共用基础安装的两套千斤顶套件,两套千斤顶套件的油路彼此独立,两套千斤顶套件以所述共用基础为中心向两端延伸并呈一条直线设置,两套千斤顶套件的远端为连接耳,所述共用基础的两端分别为两套千斤顶套件的组成构件。该用于半截割采煤工艺的液压支架推移千斤顶从结构层面实现半行程推溜、全行程拉架,显著提高了控制精度。
Hydraulic support pushing jack for half-well cutting coal-mining process
一种用于半截割采煤工艺的液压支架推移千斤顶
2021-02-26
Patent
Elektronische Ressource
Chinesisch
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 / E21D SHAFTS , Schächte |
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