Novel mechanical-hydraulic control triaxial creep testing machine

The invention discloses a novel mechanical-hydraulic control triaxial creep testing machine, which comprises an upper force bearing plate, a middle plate and a lower force bearing plate, wherein a plurality of upper stand columns are arranged between the upper force bearing plate and the middle plate, and the two ends of each upper stand column are connected with the edge of the upper force bearing plate and the edge of the middle plate respectively; a plurality of lower stand columns are arranged between the middle plate and the lower force bearing plate, and the two ends of each lower standcolumn are connected with the edge of the middle plate and the edge of the lower force bearing plate respectively; a pressure chamber base is fixedly connected to the middle of the upper surface of the middle plate, a pressure chamber end cover is arranged above the pressure chamber base, a pressure chamber cylinder is arranged between the pressure chamber base and the pressure chamber end cover,and the pressure chamber base, the pressure chamber end cover and the pressure chamber cylinder form closed space; an axial oil cylinder is fixedly arranged on the lower force bearing plate, a push rod of the axial oil cylinder is vertically upward and connected with a lower force transmission column, the lower end of the lower force transmission column is connected with the push rod of the axialoil cylinder, and the upper end of the lower force transmission column extends upwards and sequentially penetrates through the middle plate and the pressure chamber base.