Indoor rotary shearing and pressure transmission test all-in-one machine suitable for coarse-grained soil

The invention provides an indoor rotary shearing and pressure transmission test all-in-one machine suitable for coarse-grained soil, which comprises a workbench, an experiment cabin and a lifting device positioned beside the experiment cabin are fixed on the workbench, a motor assembly is fixed on the output end of the lifting device, the top of the experiment cabin is provided with a pressure transmission piston in sliding connection with the inner wall of the experiment cabin, and the pressure transmission piston is connected with the motor assembly. A loading frame is connected above the pressure transmitting piston, and an output shaft of a motor assembly vertically penetrates through the loading frame and the pressure transmitting piston, then enters the experiment cabin and is connected with a shearing device for a rotary shearing test; the loading frame is connected with a loading device for driving the loading frame to move up and down, so that the pressure transmitting piston performs ...